CN1942698A - Irrigation coupling apparatus and method - Google Patents

Abstract

In a fluid system such as irrigation system, fluid conduit attachment is facilitated through the use of a coupling. The coupling may have a body with a first end attached to a component such as an irrigation component, and a second end designed to receive an end of a conduit. The first end may be integrally formed with the component or separately attached thereto. The second end has a bore into which the end of the conduit is inserted. A gripping mechanism is seated in the bore to grip the end of the conduit. A release mechanism slides to release the conduit. The coupling may have a bend and/or branches extending to extra ends. A second coupling may be added to form a rotatable swing joint. An indicator such as a blue color may be used to indicate compatibility of the coupling with the conduit.

Description

Irrigation coupling apparatus and method

Background of invention

1, relevant U. S. application

The right that the application requires to propose on May 29th, 2003, sequence number is 60/474,040, name is called the U.S. Provisional Patent Application of " irrigation coupling apparatus and method " is incorporated the application into to do reference at this.

2, technical field

The application relates to the connection set of fluid system.More particularly, the present invention relates to can be used to fastening easily and unclamp flexible plastic pipe, as typically being used for the connection set of irrigation system.

3, description of Related Art

The parts that many systems all have fluid therebetween to transmit by pipeline.These systems comprise irrigation system, home pipeline, air-conditioning system, warming and humidifying device, spraying system and the garden pipe-line system etc. of watering.Typically, the pipeline of fluid system must be connected on the parts under the situation that keeps fluid-tight, and pipeline is connected to needs some times on the corresponding part.

For example: in the civilian irrigation system of a standard, PVC (PVC) pipe is often buried as pipeline all.Described pipeline must be connected on the parts of system, these parts such as manifold, mortor operated valve, by and relief valve, backflow preventer, washing head and drip irrigation pipe.In some cases, other pipeline such as flexible pipe (i.e. " flexible pipe ") can be used to pvc pipe is connected on the irrigation parts.

More precisely, multistage pvc pipe road or flexible pipe must be irrigated on the parts by adopting priming paint or plastic binder to interconnect or be connected to usually, and this method is not only consuming time but also dirty, and the connection that provides is quite unreliable.If adopt screw thread or the connection fittings of barb are arranged, it is rapider to connect comparable employing priming paint and glue, but the integrity that connects is still unreliable.

And the connection of carrying out with glue can not separate.Therefore, if such fault that is connected with, this pvc pipe or flexible pipe that connects each side must be cut off, and one or more new connection must bonded putting in place.Accessory requirement one of them accessory in the process that connects that is threaded can be rotated.The connection fittings of band barb may compare difficulty to some, because be fastenedly connected to reach in order to keep connection barb firmly need be inserted sufficiently long distance.Therefore, parts are connected together with pvc pipe and/or flexible pipe may be cumbersome, and expend time in.

Can adopt various connection sets will irrigate parts, pvc pipe and/or flexible pipe connects together.Yet existing connection set has some intrinsic shortcomings.Usually, these connection sets need adopt priming paint and glue, threaded connector, or the barb link, have therefore increased the needed installation time.Some this type of connection set need be used for the instrument that connects or dismantle.Some connection sets are not quick detachable, and other some connection sets may be under some certain conditions cisco unity malfunction, as when being buried under the ground.

Also have, many existing connection sets do not indicate that suitable line size is connected to be used for reaching with the fluid tightness of connection set.The size of the irrigation flexible pipe of different MANUFACTURER manufacturings has a great difference, so that can not mate mutually, and to the eye closely similar.Therefore, many users may buy these connected element that can not mate mutually and flexible pipes by accident, or attempt they are coupled together.

Have, many connection sets that are designed to be connected to flexible pipe are rigidity, so requirement can only be connected to flexible pipe on the connection set on an angle again.This situation may apply pressure improperly to flexible pipe, thereby may cause flexible pipe reduction, disengaging or clamped.

Brief summary of the invention

Device of the present invention is based on the existing situation of this technology and researches and develops.Specifically, be based on existing fluid system and fluid connecting device also do not solve fully in this technology problem and needing and research and development.Therefore, overall purpose of the present invention provides the fluid system that comprises the connection set that can overcome the prior art deficiency.

For reaching aforementioned purpose, and describe, the invention provides a fluid system according to preferred embodiment given in this specification and generality thereof.But described fluid system irrigation system, warming and humidifying system, air-conditioning system, spraying system, devaporizer, or similar system.In an embodiment, this fluid system is the irrigation system to soil water supply.Described system comprises the parts of a plurality of irrigated soil of available term " irrigation parts " expression.Washing head, drip irrigation pipe, mortor operated valve, by and relief valve, backflow preventer, water supply line, garden hoses and similar device thereof all be to irrigate parts.Pipeline is carried irrigation water between parts.Water supply line can connect together with connection set with parts.

An embodiment of described irrigation system can have one to be connected to a pipeline of irrigating parts.This pipeline can be a segment pipe, and it can be made as plastics by a kind of material of cheapness.Connection set is designed to the joint of pipeline is connected to the inipple of described irrigation parts, or on other accessory.

Connection set comprises that a main body and one are with respect to main body segregating unit slidably, so that main body is unclamped pipeline.First joint of described main body is designed to be connected to irrigates on the parts, and second joint is used for accepting pipe coupling.First joint can comprise an inipple or screw thread-like joint.Second joint can comprise a shaft shoulder and two securing meanss, and described securing means is protruding and separating mechanism interlocking from the shaft shoulder.Main body has an elbow, is used to change the flow direction of the fluid that flows between first joint and second joint.

Described separating mechanism can adopt the form of eseparation ring, and it has an outer sleeve around second joint.In outer sleeve, form a pair of locating slot, securing means is stretched in the locating slot thereby aim at securing means.Each securing means can have a position slope and platform thereon, and described slope can make the outer sleeve broadening when assembling, is arranged in locating slot thereby make outer sleeve slip over securing means up to securing means.Described platform is near an end of each locating slot, with the moving range of restriction outer sleeve with respect to second joint.

Described eseparation ring has a pair of from the outwardly directed separation handle of outer sleeve, separates handle and has surface of contact, and the position of surface of contact makes the user to move eseparation ring with finger and/or thumb easily.Eseparation ring also has an inner sleeve that is connected to outer sleeve by the annular wall that is positioned at second joint outside.Inner sleeve and outer sleeve cooperatively interact so that the eseparation ring and first joint are coaxial in fact.

The size of outer sleeve be processed to make and the described shaft shoulder between the gap very little.Therefore, a narrow and small belt space is arranged between the outer sleeve and the shaft shoulder.This gap is very little, even dust can not enter in this belt space usually, stops moving of eseparation ring.Therefore, this connection set can be buried under the ground, can not influence when excavating afterwards the user by eseparation ring with the disconnection that is connected between water supply line and the connection set.

Described main body has a sign to indicate which type of pipeline to be fit to fastening with this connection set.This sign is colored, as blueness, with the match colors of water supply line.Described main body and water supply line can, for example make by blue plastic.Described eseparation ring also optionally has such sign.

Main body has a hole to realize by this connection set water supply between first joint and second joint.The joint of pipeline is inserted in this hole.A described Kong Youyi fastening part so that when the joint of pipeline is inserted in this hole fully can with this fastening part near.Clamping mechanism is close together with the form of spring washer and the lip shape step in the hole.Described spring washer has the ratchet that radially inwardly stretches out, and when the joint of pipeline was inserted in this hole, these ratchets bent.When the power that applies was pulled out pipeline from the hole, described ratchet tightly seating provided the chucking action on the joint of pipeline, thereby keeps the joint of pipeline not to be drawn out.

A seal ring leans on platform rank in hole, is positioned at the inboard of spring washer.Flexible material of described seal ring such as rubber are made, thereby form a substantial water-stop with respect to the external diameter of the joint of pipeline.The sealing ring can have a countersinking, to realize by the joint insertion of spring washer with pipeline.

Described connection set is inserted in the hole fastening part up to this pipeline and hole near installing easily by the joint with pipeline.Seal ring near the external diameter of pipe coupling so that sealing to be provided.Spring washer near the joint of connection set so that this joint is positioned at the hole.Irrigating parts can be by being threaded or alternate manner is connected on first joint of connection set.

Connection set also can disconnect with pipe coupling easily and being connected.The user can exert pressure to eseparation ring simply, thereby eseparation ring is slided along the hole axle.Inner sleeve is exerted pressure to the ratchet of spring washer, and they are pushed away the joint of pipeline, thereby the joint of realizing pipeline is pulled out from the hole of main body.

According to an optional mode of execution of the present invention, a fluid system as an irrigation system, comprises that also one is irrigated parts, a connection set and a pipeline.Connection set has a main body, and it has first joint and second joint.But first joint does not have connection fittings, but makes with irrigation parts integral body together.Described main body from first joint to the second joint stretched flat.Second joint comprises a shaft shoulder, it in the manner described before with an eseparation ring interlocking.The joint of pipeline also is fixed in the hole of main body by spring washer.

Pipeline can be connected with connection set with the same mode of top description or disconnect.Irrigating parts does not need to be connected on the connection set, because whole manufacturing of first joint of it and main body forms.Described main body or eseparation ring can have a sign, on form that it can mark and the pipeline similarly sign be complementary to represent that this pipeline and connection set match.

Another optional mode of execution according to the present invention, a fluid system can have a swivel joint as irrigation system, irrigates parts to pipeline so that the joint of pipeline can be arranged to connect with respect to the irrigation parts in a plurality of different angles.Described swivel joint comprises a connection set of describing as first embodiment.This connection set has one 90 ° elbow.

In addition, described swivel joint comprises a revolving joint, and it comprises a main body and a separating mechanism.Described main body has first joint and second joint.Second joint can comprise a shaft shoulder and a hole of accepting pipe coupling.Described separating mechanism is a foregoing eseparation ring, thereby the joint that makes pipeline is accepted to be rotated connection set with identical mode described in first embodiment.

First joint of the main body of revolving joint comprises a pipe that size is identical with described line size.Therefore first joint of revolving joint can insert in the hole of connection set, and fixes by the retaining ring of connection set.This revolving joint also has one 90 ° elbow.Because first joint of revolving joint can be fixed in second joint of connection set on a plurality of directions, the elbow of connection set cooperatively interacts with the elbow of revolving joint so that first joint of the joint of connection set and connection set is parallel, and vertical or between has arbitrarily angled.Therefore, the joint of irrigating parts and pipeline can adopt corresponding angle to be connected, and under this angle, can not apply undue influence to pipeline.

Another optional mode of execution according to the present invention, a fluid system has two pipelines as irrigation system, the connection set of irrigating parts and being used for two pipelines are connected to the irrigation parts.Described connection set comprises a main body and two separating mechanisms, and each separating mechanism all comprises an aforesaid eseparation ring.Main body has one to be connected to first joint of irrigating parts and second joint that carries out interlocking with described eseparation ring, can accept of described water supply line separably.First joint and second joint separate with one 90 ° elbow.

Described main body also has a branch, and it reaches the 3rd joint of main body from elbow.This branch stretches out with certain angle, so that described connection set is common T shape.The 3rd joint and another eseparation ring interlocking are to accept other pipeline separably.Therefore, pipeline can be a part of water being supplied with or taken from the water supply line of a plurality of irrigation parts.

Another optional mode of execution according to the present invention, a fluid system can have four water supply lines to connect together by a connection set as irrigation system.Described connection set has a main body, comprise first joint, second joint, the 3rd joint, the 4th joint, first joint and second joint separate by one 90 ° elbow, third and fourth joint lays respectively in first and second branches, thereby they stretch out from the elbow and make main body have X-shape usually.Each joint and accept the retaining ring interlocking of the joint of one of them pipeline separably.Therefore, described connection set connects for current provide four-way.

By adopting apparatus and method of the present invention, the connection of fluid system inside can be carried out convenient and reliably, and can reduce the overall expenses and the installation time of these fluid systems.The specification below these characteristics of the present invention and other advantage are passed through to read and the claim gathering of calligraphers are comprehensive more and clear, or learning and mastering is passed through in the practice in according to the present invention.

Brief Description Of Drawings

The specific embodiment of the present invention shown in inciting somebody to action with reference to the accompanying drawings to specific descriptions of the present invention is carried out.Should understand, these accompanying drawings only show the specific embodiment of the present invention, should not be considered to limitation of the scope of the invention.By these accompanying drawings, will be described and explain other characteristic of the present invention and details.

Fig. 1 is the partial side view according to the general fluid system in a specific embodiment of the present invention, comprises parts, a pipeline and a connection set;

Fig. 2 is the three-dimensional exploded view of fluid system among Fig. 1, and connection set wherein is in coupled condition, with the joint of fastening one section water supply line;

Fig. 3 is the cross sectional side view of connection set among Fig. 1, still is in coupled condition;

Fig. 4 is the front view of the spring washer of connection set among Fig. 1;

Fig. 5 is the cross sectional side view of connection set among Fig. 1, is in not-connected status to unclamp the joint of pipeline;

Fig. 6 is the partial side view of the optional fluid system embodiment according to the present invention, and whole manufacturing of parts wherein and connection set forms;

Fig. 7 is the sectional perspective exploded view of another optional fluid system embodiment according to the present invention, and parts wherein are connected with pipeline by swivel joint, and swivel joint comprises a connection set that is connected to revolving joint;

Fig. 8 is the partial perspective view of another optional fluid system embodiment according to the present invention, and parts wherein are connected with two pipelines by the T type connection set with three joints; With

Fig. 9 is the partial perspective view of another optional fluid system embodiment according to the present invention, and four pipelines wherein connect by the X type connection set with four joints.

The detailed description of preferred embodiment

Preferred embodiment of the present invention gets the best understanding by the reference accompanying drawing, and the same part in the accompanying drawing has adopted identical numbering.Should be clear, the present invention is general description and the parts that illustrate in its accompanying drawing, can be configured and are designed to multiple different structure.Therefore, below to apparatus of the present invention, system and method more detailed description, as representative among Fig. 1 to 9, be not that intention will limit the scope of protection of present invention, they are the representative of the preferred embodiments of the present invention.

In this application, term " is connected to " (" connected to "), " being attached to " (" coupledto ") and " with ... contact " (" in communication with ") refers to the interaction of two or more entities of arbitrary form, comprises machinery, electricity, magnetic, electromagnetism and interaction heat.Term " is connected to " (" attached to ") and refers to restriction and be connected relative translation between object or a kind of mechanical connection manner of rotation.Term " is pivotally connected to " (" pivotally attached to ") and " being slidably connected to " (" slidably attached to ") and refers to and allow respectively to relatively rotate or translation, but limits the mechanical connection manner of other relative movement.

Term " is directly connected to " (" attached directly to ") and refers to connected object or be direct contact, or is exactly only by single fastening piece, Bond or other connection set separately.Term " near " (" abutting ") refer between object and directly be in contact with one another, but not necessarily be joined together.Term " the whole manufacturing forms " (" integrally formed ") refers to object and is made by integral body, promptly is a single part, and need not a plurality of parts are assembled.If a plurality of parts are made by single workpiece, they can be formed by the integral body manufacturing so.

Fig. 1 is the partial side view according to general fluid system 10 in a specific embodiment of the present invention." fluid system " refers to and includes or any system of the fluid (comprising liquid, gas and liquid vapour mixture) that the pipeline by any type flows.Fluid system 10 can have polytype, includes but not limited to irrigation system, warming and humidifying system, air-conditioning system, evaporative cooling system, for open air comfortable spraying system and similar system.In order to discuss conveniently, fluid system 10 is assumed to the irrigation system that is used to soil water supply.

Fluid system 10 has axial 12, horizontal 14 and vertical 16.As shown in the figure, fluid system 10 comprises a connection set 20, and it is designed to be connected to a segment pipe 22.Pipeline 22 can have any type, comprises metal tube, pvc pipe or is normally used for the plastics " flexible pipe " (" flexi-pipe ") of family's sprinkler system.Pipeline 22 has a joint 24 that can link to each other with connection set 22.

Connection set 20 provides the fluid communication of pipeline 22 with parts 26, and parts 26 are the fluid means of arbitrary form." fluid communication " refers to the fluid flow path of the common closure that exists between two objects.Therefore in the fluid system 10 of Fig. 1, parts 26 are designed to irrigate usefulness, can comprise with lower device: washing head, distributed water pipe with holes, electrically-controlled valve, by and relief valve, backflow prevention device, the spray person in charge, nozzle, garden hoses and pipeline.Owing to present invention includes the multiple fluid system except that the irrigation system, thereby the fluid means of other types also considered to adopt in term " parts ".

" nozzle " but the nozzle of any type for example be used to irrigate or the hand-held sprayer of household cleaning, be used under warm weather, providing atomizer nozzle and the internal furnace humidification nozzle and the similar device thereof of comfortable water smoke." distributed water pipe with holes " can comprise drip irrigation pipe, be used for the supply channel and the similar device thereof of devaporizer." valve " comprised the valve of number of different types, comprises safety check, mortor operated valve, manually operated valve and similar device thereof.End and the relief valve of irrigation system also belongs to the category of term " valve ".

In an embodiment, parts 26 are watering devices that a positioned vertical supplies water in ground and by the conventional levels mode.Therefore, connection set 20 is made with 90 ° of angles.Therefore connection set 20 also can be described as " elbow accessory ".In other embodiments, similar connection set is straight, the U type or have the angle that any other needs.In order to link to each other with connection set 20, parts 26 have an accessory as inipple 28.The fixing device that " accessory " is not necessarily independent also can only be a joint made from parts integral body.

Fig. 2 is the sectional perspective exploded view of fluid system 10 among Fig. 1, and it has provided more detailed content.As shown in the figure, the inipple 28 of parts 26 has been cut open on the internal surface that is presented at inipple 28 screw thread to be arranged.Screw thread 30 couples together connection set 20 and parts 26 for female thread.Certainly, in another embodiment, parts 26 can have external screw thread and connection set 20 can have female thread.

Shown in embodiment in, connection set 20 has a main body 40 and a segregating unit 42, it with respect to main body 40 vertically 12 slidably." slidably " ability that refers to relative movement between two objects and remain in contact with one another." slip " comprises straight line motion, rotatablely moves and makes up.In embodiment as shown in the figure, segregating unit 42 is generally annular, therefore can be called as eseparation ring 42.Main body 40 has one first joint 44, is used to be connected to the inipple 28 of parts 26.In order to link to each other with the screw thread 30 of inipple 28, first joint 44 has the screw thread 46 of corresponding matching size.In addition, first joint 44 can have a hexagon antelabium, be used for self with the inipple 28 of parts 26 be rotatably connected and fastening.

In other embodiments, can adopt polytype joint to replace the screw thread 30 of first joint 44.As female coupling, Quick Connect Kit, cannula lock, snap-in joint and can be used for being connected to the similar device of various respective accessory.

Main body 40 also comprises one second joint 50, and a shaft shoulder 51 is arranged in it.The shaft shoulder 51 is generally tubulose.Second joint 50 separates with the elbow 52 of first joint 44 by one 90 °.Elbow 52 provides support structure by the support plate 54 that generally reaches first joint 44 from second joint 50.

Second joint 50 horizontal 14 on a pair of securing means 56 that is in diverse location is arranged, they are opposite to the both sides of the shaft shoulder 51.Securing means 56 is designed to eseparation ring 42 location of sliding.Each securing means 56 all has a platform 58 and is used to limit relatively moving of 40 of eseparation ring 42 and main bodys, and the inclined-plane 60 that adjoins platform 58 is used for both assemblings of eseparation ring 42 and main body 40.

Eseparation ring 42 has an outer sleeve 70, and the size of outer sleeve 70 is slightly larger than the shaft shoulder 51, and this makes outer sleeve 70 can play the effect of dust-proof cover, thereby prevention dust and particulate enter into the space between the eseparation ring 42 and second joint 50.Outer sleeve 70 extends enough length on axial 12 direction, cooperate closely for providing relative between eseparation ring 42 and second joint 50, has strengthened its contamination resistance.The dust-proof cover function that outer sleeve 70 is played will describe in detail subsequently.By keeping the alignment of 50 of the eseparation ring 42 and second joints, outer sleeve 70 also helps eseparation ring 42 to move on axially in main body 40.

There is a pair of locating slot 72 outer sleeve 70 inside, and its position makes securing means 56 put in it.Each locating slot 72 is generally rectangle, and slightly is longer than platform 58 and the inclined-plane 60 combination size in this direction on axial 12.Therefore, second joint 50 of main body 40 axial 12 on, outer sleeve 70 removable one section limited distance.

It is useful that locating slot 72 and securing means 56 are arranged in connection set 20 outsides, and their are made quite easily and safeguard, and can not hinder pipeline 22 and insert connection sets 20.This working method of locating slot 72 and securing means 56 also makes eseparation ring 42 not need when separating to rotate being connected.In other embodiment, separating mechanism is rotating, and is also removable and rotation.

When eseparation ring 42 when second joint 50 reaches the highest distance position that securing means 56 and locating slot 72 interlockings are allowed, connection set 20 is in coupled condition, wherein the joint 24 of pipeline 22 can be fixed on connection set 20 inside.When eseparation ring 42 was pressed towards second joint 50, connection set 20 was in separated state, allowed joint 24 to remove from connection set 20.

As shown in the figure, eseparation ring 42 also has pair of separated handle 74 to extend on vertical 16.Separating handle 74 can be held on axial 12 and/or be pressed easily, eseparation ring 42 is pressed to second joint 50 of main body 40.Separate handle 74 eseparation ring 42 is moved, the surface of contact 75 vertical with axial 12 usually is provided.Surface of contact 75 can make things convenient for and cosily by user's finger and/or thumb press, to apply necessary pressure on eseparation ring 42.Separate handle 74 and can realize that also connection set drives conversion at the one hand of connection and separated state.

Eseparation ring 42 also has an inner sleeve 76, and it forms hole 78, and the joint 24 of pipeline 22 inserts in this hole.The countersinking 80 of eseparation ring 42 is positioned at the outside in hole, and and this hole adjacency so that in joint 24 patchholes 78.Eseparation ring 42 has an annular wall 82, and it reaches outer sleeve 70 from inner sleeve 76.The shaft shoulder 51 has 12 extensions vertically of an axle 84.Axle 84 is for outer sleeve 70, inner sleeve 76, annular wall 82 and be positioned at hole (not shown) coaxial of the main body of the shaft shoulder 51.

In other embodiment, can not adopt eseparation ring 42 simply.The corresponding connecting arrangement (not shown) can be designed to permanently the joint of (inseparably) fixing tube 22.As selection, externally under the pressure effect of instrument, this connection set can make the joint of pipeline separate, as can around pipeline slide the chimb (not shown).The two halves of this chimb can link together and maybe can be separated, and so that chimb is removed from pipeline, thereby a single chimb can cause that a plurality of connection sets separate.

In embodiment shown in Figure 2, pipeline 22 has a sign 86 that is positioned on its external diameter for another example.Sign 86 is used for indicating the size of pipeline 22, and is more particularly, relevant with pipeline 22 external diameter sizes.Different MANUFACTURER is made identical flexible pipe, but size differs greatly.Therefore, the user can find to determine corresponding irrigate that parts are connected to can be very difficult on one section flexible pipe.The sign 86 that indicates pipeline 22 sizes is easy to see.

In this application, " dimensioning " not necessarily needs the dimension figure of telling that the user is concrete, but the classification under the line size should indicate.Therefore, sign 86 does not need to comprise letter or number, can only be color.In embodiment shown in Figure 2, sign 86 is blue.No matter be natural or artificial, blueness all is very useful, because considerably less in underground structure.Whole pipeline 22 can be blueness, can be by adopting blue plastics injection moulding.Therefore, sign 86 can be very easy in sight, even pipeline 22 also is like this when partly being buried.Except adopting sign 86 to indicate the size of pipeline 22, this feature also makes pipeline 22 be easy to see also and other underground object distinguishes.Other color except blueness also can be used on the sign 86 certainly.

Connection set 20, or more particularly, main body 40 also can have sign 88.Sign 88 indicates the size of the pipeline that can be connected device 20 acceptance, to provide the connection of water tightness.Sign 86 and sign 88 are corresponding to match with sign connection set 20 and pipeline 22.Sign 86 also can be identical in fact with sign 88." identical in fact " but sign refer to matching of visual identity or corresponding component.If desired, main body 40 (and/or remainder of connection set) also can be made by blue plastics.Pipeline 22 can similarly be made to indicate them and can be interconnected by same blue plastics.In other embodiment, sign 88 can be positioned on the eseparation ring 42 except in main body 40 or as substituting on main body 40.

With reference to Fig. 3, the cross sectional side view of expression connection set 20, the remainder of it and fluid system 10 are separately.The same coupled condition that is in of shown connection set 20 with Fig. 1, Fig. 2.The internal feature of connection set will be described in conjunction with Fig. 3 now.

As shown in the figure, the outer sleeve 70 of eseparation ring 42 has a common inside countersinking 92, and inner sleeve 76 also has a common outside countersinking 94.Countersinking 92,94 is therefore all towards the respective face of the shaft shoulder 51, with assembling eseparation ring 42 and main body 40.

An annular spaces 95 is arranged between the outer sleeve 70 and the shaft shoulder 51.This annular spaces 95 makes a gap 96 between the outer sleeve 70 and the shaft shoulder 51.When gap 96 is applicable to the both sides of second joint 50 (upside and downside are with reference to Fig. 3), total body space of existence is the twice in gap 96.In order to stop dust to enter into annular spaces 95, the size in gap 96 preferably should be less than about 0.02 inch.Furtherly, the size in gap 96 preferably should be less than about 0.01 inch, even less than 0.005 inch.

If desired, gap 96 can be the minimum clearance that can allow to install eseparation ring 42 and main body 40.Gap 96 also can be and can prevent that when connection set 20 is buried under the ground dust from entering into the maximal clearance of annular spaces 95.The tightness in gap 96 can prevent that not only dust from entering into annular spaces 95, can prevent that also dust from entering into the inside space of annular wall.Therefore, gap 96 helps to stop dust to improve eseparation ring 42 surface friction drag when second joint moves or direct physics obstruction in the axial direction.

According to one of them embodiment, the internal diameter of the diameter of the shaft shoulder 51 and outer sleeve 70 can have identical nominal size.When 40 assemblings of eseparation ring 42 and main body, outer sleeve 70 is along with securing means 56 slips in the locating slot 72 on it, because wedge is separated to both sides, therefore, the internal diameter of outer sleeve 70 increases a little, so that gap 96 to be provided.This gap 96 is enough to allow eseparation ring 42 to slide with respect to second joint 50, but it is enough little, enters into annular spaces 95 to stop dust.

The length that stretch in gap 96 is second length of said joint 98, and it is enough to stop dust to enter.More particularly, it can stop dust to pass through the slip of annular spaces 95 interference separation rings 42.Length 98 is preferably above 1/4 inch.In other embodiment, length 98 can be little of 1/8 inch or 3/16 inch, or greatly to 1/2 inch or 3/8 inch.Length when illustrated length 98 is in joint 24 positions of fixing tube 22 for eseparation ring 42, this position is eseparation ring 42 common residing positions.

Except main body 40 and eseparation ring 42, connection set 20 has a retaining ring (retainer ring) 100.Retaining ring 100 has the antelabium 102 of the edges abut of protruding (on horizontal 14 and vertical 16) and the shaft shoulder 51.Retaining ring 100 also has one at the inner sleeve 104 that stretches of second joint.Countersinking 106 is positioned at the joint of sleeve 104 and antelabium 102, so that eseparation ring 42 and retaining ring 100 fit together.

As shown in the figure, main body 40 have one from first joint 44 to the hole 108 that second joint 50 stretches, hole 108 is along elbow 52 bendings, and, when it passes second joint 50, share axle 84.There is a fastening part 110 in hole 108, and the size of its size can be accepted the joint 24 of pipeline 22.The size of fastening part 110 should be processed to inwardly press to keep pipeline 22 modes in place by fastening part 110 being held on to joint 24, is close to joint 24.Hole 108 also has platform rank 112, and herein, the diameter in hole 108 increases from fastening part 110.And there is a lip shape step 114 in hole 108, and herein, the size in hole 108 increases from the location between platform rank 112 and the lip shape step 114.

Seal ring 120 is arranged near platform rank 112.Seal ring 120 is made by elastic material, as rubber.Seal ring 120 is generally ring-type, has one inwardly and towards the countersinking 122 of eseparation ring 42.Spring washer 130 is arranged near lip shape step 114.Spring washer 130 has a plurality of ratchets 132 that inwardly stretch out.Spring washer 130 also has the external lip 134 that is coiled on the lip shape step 114, thereby makes the external lip 134 can not excessive shrinkage when spring washer 130 deflections.The shape of spring washer 130 will more clearly be described in conjunction with Fig. 4.

Connection set 20 can adopt various methods to make.One of them method is: main body 40, eseparation ring 42 and retaining ring 100 all are made of plastics by injection molding method.Blowing, punching press or other method also can adopt.Seal ring 120 can be by elastic material, as the injection molding of rubber manufacturing.130 of spring washers can be stamped to form as steel, stainless steel or aluminium by metal.

Seal ring 120 can be inserted in the hole 108 of main body 40 at first vertically, and places by the platform rank 112 in hole 108.Spring washer 130 is inserted in the hole 108 of main body 40 then vertically, and places with the mode seating lip shape step 114 that the external lip 134 and the lip shape step 114 of spring washer 130 is connected.

After seal ring 120 and spring washer 130 installations, retaining ring 100 can be inserted into vertically in the hole 108 of main body 40, the sleeve 104 of retaining ring 100 is located immediately at the inside of second joint 50 during insertion, as shown in Figure 3.Sleeve 104 should with the external lip 134 of spring washer 130 near or directly link to each other, to realize that retaining ring 100 makes spring washer 130 in place.Correspondingly, it is in place that spring washer 130 also makes seal ring 120.

When retaining ring 100 has been positioned at position shown in Figure 3, can be by ultra-sonic welded, thermal weld, bonding or adopt other method to be connected on the joint 50.If desired, can on the flange 102 of retaining ring 100, form ring-type bead (not shown).When retaining ring 100 had been installed, the ring-type bead was sandwiched in the middle of the flange 102 and second joint 50.The ring-type bead melts together at the process of ultra-sonic welded second joint 50 that neutralizes, thereby flange 102 is fixed on second joint 50.

After retaining ring 100 had been fixed, eseparation ring 42 can be vertically 12 be inserted into second joint 50 and be connected.When eseparation ring 42 inserted, inner sleeve 76 entered into the inside of the sleeve 104 of retaining ring 100 by countersinking 106.Countersinking 106 and 94 cooperatively interacts so that the inner sleeve 76 of eseparation ring 42 be inserted into retaining ring 100 sleeve 104 inside and make it to be in the middle position.Simultaneously, the outer sleeve 70 of eseparation ring 42 passes the part of the flange 102 and the shaft shoulder 51 of retaining ring 100, as shown in Figure 3.The countersinking 92 of outer sleeve 70 helps outer sleeve 70 to insert with placed in the middle around the flange 102 and second joint 50.

When sleeve 70,76 and retaining ring 100 and 50 cooperations of second joint, outer sleeve 70 stretches on horizontal 14 to pass through securing means 56, as previously mentioned.The position on slope 60 is positioned at and can makes eseparation ring 42 cross second joint 50 in the axial direction to be inserted into, thereby causes outer sleeve 70 to stretch in the horizontal, and it is mobile therefore to allow eseparation ring 42 to continue in the axial direction.Outer sleeve 70 takes up fixing apparatus 56 and stretches, in securing means 56 is trapped in the locating slot 72 of outer sleeve 70.If desired, outer sleeve 70 can have the internal recess (not shown), extends to countersinking 92 from locating slot 72, so that outer sleeve 70 passes through on securing means 56.

In case locating slot 72 has moved enough distances and caught securing means 56, connection set has all been assembled and has been finished in order to using.Spring washer 130 is exerted pressure with the state in place that impels eseparation ring 42 to keep as shown in Figure 3 to the countersinking 94 of the inner sleeve 76 of eseparation ring 42, thereby connection set 20 is in coupled condition.The cooperation of securing means 56 and locating slot 72 prevents that eseparation ring 42 from further removing from main body 40 and retaining ring 100.

The joint 24 of pipeline 22 can be advantageously connected in the connection set 20.Say that more accurately joint 24 can 12 be inserted in the hole 78 of inner sleeve 76 vertically.Joint 24 can be pushed deeplyer in connection set 20, so that joint 24 is by spring washer 130, thereby causes the ratchet 132 outside deflections (on horizontal 14 and vertical 16) of spring washer 130, and towards the fastening part 110 in the hole 108 of main body 40.Joint 24 then by seal ring 120 and can optionally be pressed into fastening part 110 up to the outer wall of joint 24 near described fastening part 110.

The aligning of joint 24 and seal ring 120 is realized by the countersinking 122 of seal ring 120 when inserting.Seal ring 120 is exerted pressure to joint 24 and is formed a substantial fluid-tight (being the water-stop of irrigation system in the context).Sealing prevents that fluid from leaking out connection set 20 by second joint 50 when pressure reduction reaches the maximum service pressure of fluid system 10.Therefore, in this case, do not need the complicated joint 24 and the connecting means of connection set 20 just can prevent fluid loss.

When joint 24 was positioned at fastening part 110, spring washer 130 was in deflected, so that when pipeline 22 was drawn out vertically, the position of ratchet 132 stoped joint 24 by being drawn out in the connection set 20.Therefore, when connection set 20 was not moved to off state, joint 24 can not be drawn out from connection set 20, and this situation will be described subsequently in conjunction with Fig. 4.

Fig. 4 is the front view of spring washer 130 independently, and it is in non-deflecting basically state.As shown in the figure, ratchet 132 inwardly stretches out from external lip 134.External lip 134 stretches on axial 12, and promptly the fastening part 110 towards the hole 108 of main body 40 stretches (as shown in Figure 3).In this application, " ratchet " do not refer to any concrete shape or Elongation." ratchet " only refers to a projection.In other embodiment, spring washer can have ratchet seldom, the concrete part of each wound joint 24.For example spring washer only has two ratchets, and each is the shape of a semicircular, and the both sides that can be placed in this spring washer are with permanent joint 24.

As the embodiment among Fig. 4, spring washer 130 has a plurality of inside groove 140 that ratchet is separated from each other.Inside groove 140 is usually by arranged radially.Spring washer 130 also has a plurality of water jackets 142, makes ratchet 132 deflection in the axial direction, and external lip 134 is kept and the cooperation and the dimensional stability of lip shape step 114 when ratchet 132 deflections.

Fig. 5 is a cross sectional side view, represents a connection set 20 that is in separated state.Eseparation ring 42 can pass through, and for example holds main body 40 and is driven to retaining ring 100 in the axial direction simply towards the separation handle that main body 40 is pushed eseparation ring 42.The inner sleeve 76 of eseparation ring 42 further enters hole 108, and the countersinking 94 of inner sleeve 76 presses spring washer 130.

Eseparation ring 42 can move the antelabium 102 that is close to retaining ring 100 up to the annular wall 82 of eseparation ring 42 in the axial direction.In this, locating slot 72 has moved to segregating unit 56 and has broken away from the state that is connected at the other end of separating vessel.

As to the reaction from the pressure of the countersinking 94 of inner sleeve 76, warpages take place to the fastening part 110 in hole 108 in ratchet 132, as shown in Figure 5.Diameter of ratchet 132 outwardly-bent formation simultaneously greater than pipeline 22 external diameters.Therefore, ratchet 132 no longer tightens pipeline 22, thereby the joint 24 of pipeline 22 can 12 freely be pulled out from hole 108 vertically.

Subsequently, eseparation ring 42 can be separated, so that connection set 20 is got back to not coupled condition.Then, pipeline 22 or other different pipeline can be according to aforesaid method by being inserted into hole 108 and connecting or reconnecting.

According to other embodiment of the present invention, except 90 ° elbow, the main body of connection set can have diversified shape.Concrete condition according to connection set is used also can adopt various joints.

In one embodiment, the connection set (not shown) can be a straight body.Described connection set can have two joints that have as second joint 50 of connection set 20, rather than the main body of inipple.This connection set also can have two corresponding eseparation rings 42, seal ring 120 and spring washer 130, thus make connection set can accept the joint 24 of pipeline 22 separably at each joint of main body.This connection set couples together with making two pipe coupling butt joints, thereby a longer pipe road is provided.The example of some other shape and jointing form will be described in conjunction with remaining accompanying drawing.

Fig. 6 is a side view, the part of the fluid system 210 of expression a specific embodiment of the present invention.The same with the embodiment of front, fluid system 210 can be the irrigation system that designs to soil water supply.Fluid system 210 to small part is embedded in the soil 218, and soil 218 receives water supply from fluid system 210.As shown in the figure, fluid system 210 comprises a connection set 220, has the pipeline 222 and the parts 226 that are designed to by the fixing joint 24 of connection set 220.As shown in the figure, parts 226 are for irrigating parts, or more particularly, for being used for the Pop-up washing head of irrigated soil 218.

Connection set 220 has a main body 240 and the securing means that can comprise an eseparation ring.Main body 240 also has second joint 50 that is connected to first joint 244 of parts 226 and is used for accepting the joint 24 of pipeline 222.Main body 240 is straight in fact, and stretches on horizontal 16.

The same with the embodiment of front, second joint 50 comprises that is generally a columniform shaft shoulder 51.Second joint 50 has securing means 56, and wherein each all comprises a platform 58 and an inclined-plane 60.Eseparation ring 42 has an outer sleeve 70 that has locating slot 72, and locating slot 72 is with situation identical with previous embodiment and securing means 56 interlockings.Eseparation ring 42 also has from outer sleeve 70 outwardly directed separation handles 74.

Each separates handle 74 all a surface of contact 75, and the user can exert pressure to it easily, so that eseparation ring 42 moves on horizontal 16.Separate handle 74 usually and annular wall 82 coplanars of eseparation ring 42.Connection set 220 comprises seal ring 120 (not shown)s and grasping mechanism spring washer 130 (not shown)s as described previously.Eseparation ring 42, seal ring 120 and spring washer 130 to be interacting with the same mode of aforesaid embodiment, with being fastenedly connected of joint 24 that pipeline 222 separable, watertight in fact is provided.

First joint of main body 240 and parts 226 whole manufacturings form.According to an embodiment, parts 226 can have a cavity of casting together as the main body 240 of a separate part and connection set 220.Therefore do not need accessory to be used for parts 226 are connected on the connection set 220.

As shown in the figure, pipeline 222 has a sign 286, to indicate the size of pipeline 222.Sign 286 comprises a mark, and this mark optionally comprises one or more letter or numbers.The main body 240 of connection set 220 also has a sign 288, can be connected the line size that device 220 is accepted to indicate.Sign 288 comprises one and sign 286 marks that match.Sign 288 and sign 286 adopt color to identify size just as selecting.Therefore, the sign of color or other form can be used to replace sign 286 and 288, at this, identifies 286 and 288 and uses as an example.Sign 288 also optionally is arranged on the eseparation ring 42.

Pipeline 222 can adopt above-described mode and be connected on the connection set 220 in conjunction with the embodiment of front.The joint 24 of pipeline 222 can be inserted in second joint 50 of main body 240, until promptly taking place.Similarly, push retaining ring 42 by on horizontal 16, (in Fig. 6, making progress) and cause that spring washer 130 makes joint 24 separate and the joint 24 of pipeline 222 can be removed from connection set 220.Joint 24 then can be separated.First joint, 244 whole manufacturings of parts 226 and main body 240 form, and therefore, parts 226 do not need to be connected on the connection set 220, can not remove from it.

Fig. 7 is a three-dimensional exploded view, and expression is according to the part of the fluid system 310 of another embodiment of the present invention.Fluid system 310 can comprise a fluid system 310.As shown in the figure, fluid system 310 comprises a swivel joint 318, and swivel joint 318 generals parts 26 as shown in fig. 1 are connected on the pipeline 22 with any one angle of a plurality of angles.Swivel joint 318 can be operated to arrange first joint 44 of connection set 20, and therefore, the inipple 28 of parts 26 can be parallel to the joint 24 of pipeline 22, perpendicular to joint 24 or have arbitrarily angled between the two.So accessory that swivel joint 318 can be used as U-shape accessory, L-shape accessory, S-shape accessory or has other angle.

Swivel joint 318 has connection set 20 and the revolving joint 320 that is designed to be connected to connection set 20 on identical with first embodiment (being the mode of execution of Fig. 1-5).Revolving joint 320 is similar with connection set 20, but has some difference.Revolving joint 320 has a main body 340 and an eseparation ring 42, and eseparation ring 42 slides with respect to main body 340, thereby realizes that revolving joint 320 separates pipeline 22.

Main body 340 has first joint 344, and it is included in the pipe 346 that stretches on axial 12, the ring-type shaft shoulder 348, and the external diameter of first joint 344 increases herein.The external diameter of pipe 346 is identical with the external diameter of pipeline 22, can be inserted into connection set 20 and fastening by it so that manage 346, reaches the watertight state.The ring-type shaft shoulder 348 is near the eseparation ring 42 of connection set 20.

The main body 340 of revolving joint 320 also has second joint 50 the same with connection set 20.Second joint 50 and eseparation ring 42 cooperate, and provide pipeline 22 separable being fastenedly connected in the top mode of describing in conjunction with the connection set among Fig. 1-5 20.First joint 344 of main body 340 separates with connection set 20 the same elbows 52 by one with second joint 50.Elbow 52 can comprise 90 ° of angles.Say that more accurately second joint 50 has securing means 56, locating slot 72 interlockings that form in it and eseparation ring 42 outer sleeves.

Second joint 50 has an axle 84, can insert second joint 50 along the joint 24 in this central siphon road 22.As shown in the figure, axle 84 stretches along horizontal 14.First joint 44 of connection set 20 is parallel with vertical 16 usually.Therefore, if situation as shown in FIG. connects together, swivel joint 318 will make the inipple 28 of parts 26 and the joint 24 of connection set 20 be in orthogonal position usually.

Shown in arrow 390, revolving joint 320 can be around axial 12 positions that rotate to any needs, and the pipe 346 of first joint still can be inserted in second joint 50 of connection set 20 and be fastening by it.Therefore, the joint 24 of pipeline 22 can equally as previously mentioned be positioned at a plurality of different positions with first joint 44 with respect to connection set 20.So swivel joint 318 can be used to make the joint 24 of pipeline 22 to be connected on the parts 26 with the most natural angle.Thereby, the pressure on the pipeline 22 can reduce with avoid being drawn out, the generation of kink and similar phenomenon.

When being bitten by spring washer 130, pipe 346 can allow or not allow revolving joint 320 to rotate at the spring washer 130 of second joint, 50 inside of connection set 20 with respect to connection set 20.The pipe 346 of revolving joint 320 under any circumstance all can be by driving eseparation ring 42 and inserting again with the angle between the joint 24 of first joint 44 of adjusting connection set 20 and pipeline 22 with different directions.

Pipeline as the pipe 346 of first joint 344 of the main body 340 of revolving joint 320 also can be connected on the parts, or and whole manufacturing of these parts form, to realize parts and connection set of the present invention, as the separable connection of connection set 20.Described connection can be carried out as connection set among Fig. 7 20 mode identical with revolving joint 320 Placements.Described pipeline can be simply to be inserted into in fastening identical mode is inserted into second joint 50 of main body 40 of connection set 20 with the joint 24 of pipeline 22.

If desired, straight connection set of the present invention even can be elongated pipeline is provided.Described connection set (not shown) can have an elongation, common straight main body, this main body has as first joint of the joint 24 of pipeline 22 with as second joint of second joint 50 of connection set 20 main bodys 40.Eseparation ring 42, seal ring 120 and spring washer 130 also can be connected to described second joint, are fastenedly connected to provide separable.Be inserted into second joint 50 of the main body 40 of an adjacent connection set by joint 24, a plurality of such connection sets can be carried out head and the tail and connect the main body of a connection set.Therefore, except the bindiny mechanism that pipeline self provides, do not need to adopt any other bindiny mechanism just pipeline/connection set can be coupled together from beginning to end.

Fig. 8 is a stereogram, the part of expression fluid system 410 of another embodiment according to the present invention.Described fluid system can comprise that is the irrigation system of soil water supply.As shown in the figure, fluid system 410 comprises connection set 420, and it couples together two pipelines 22 and parts 426.Parts 426 comprise a drip irrigation pipe that is threaded joint 428, screw thread 430 are arranged to form male joint on the external diameter of inipple 428.Parts 426 also are distributed with a plurality of holes and are used for carrying out groundwater supply on its length, thereby drip irrigation is provided.

As shown in the figure, connection set 420 has a main body 440 and two eseparation rings 42, and they can be identical with the eseparation ring 42 in the embodiment of front.Main body 440 has one to be distributed with first joint 444 of screw thread (not shown) on the footpath within it, so that the female coupling that cooperates with the inipple 428 of parts 426 to be provided.Main body 440 also have one have the shaft shoulder 51 and with the securing means 56 of one of them eseparation ring 42 interlocking.Seal ring (not shown) and the cooperation of spring washer (not shown)s that corresponding eseparation ring 42 and the seal ring 120 as embodiment of front in and spring washer 130 are the same are with the joint 24 of fastening separably one of them pipeline 22 of mode of watertight.

Main body 440 also has an elbow 452, so that first joint and second joint were opened in 444,50 minutes.Elbow 452 provides 90 ° of angles between first joint and second joint 444,50.In addition, main body 440 comprises branch 453, and it is stretched over the 3rd joint 455 from elbow 452.The 3rd joint 455 can be identical in fact with second joint 50, also can be connected on another eseparation ring 42.Another eseparation ring 42 and another seal ring (not shown) and another spring washer (not shown) cooperate, with the joint 24 of fastening separably another pipeline 22 of mode of watertight.

As shown in the figure, branch 453 is so that main body 440 has T-shape shape stretches out from elbow 452.In other optional embodiment, elbow does not need to have 90 ° of angles, and branch also can various angles stretch out from the elbow.Therefore corresponding main body has various shapes, comprises gamma-form, three fork-shapeds and similar shape.Connection set 420 shown in the figure is particularly useful for the irrigation parts of a series of connections, as is connected to washing head or drip irrigation pipe on the single pipeline that is formed by pipeline 22.

In one was optionally disposed, available one the 3rd eseparation ring 42 substituted the inipple of first joint 444.Therefore, three pipelines 22 can T-shape shape link together.This configuration is also particularly useful for the irrigation parts of a series of connections, irrigates the pipeline 22 that a certain length is all arranged between parts and each connection set at each.

Stereogram among Fig. 9 is represented the fluid system 510 of the another one embodiment according to the present invention.Fluid system 510 can comprise that is the irrigation system of soil water supply.Fluid system 510 comprise connection set 520 with four identical pipelines 22 of pipeline in the embodiment of front.Because term " parts " comprises pipeline, each pipeline 22 can be considered to parts of fluid system 510.Connection set 520 is used for four all pipelines 22 are connected together.

Connection set 520 has a main body 540 and four eseparation rings 42, and they can be identical with the eseparation ring 42 described in the embodiment of front.Main body 540 has one to have the shaft shoulder 51 and cooperate with first joint 544 of the securing means 56 of fastening described eseparation ring 42 slidably with a corresponding eseparation ring 42.Described eseparation ring 42 cooperates with spring washer 130 the same seal ring (not shown) and spring washer (not shown)s with seal ring 120 in first embodiment of front, with the joint 24 of fastening one of them pipeline 22 of separable mode.

Main body 540 also has second joint 50 identical with first joint, 544 essence.Second joint 50 is also accepted corresponding eseparation ring 42 slidably, and eseparation ring 42 and an other seal ring and an other grasping mechanism cooperate, with the joint 24 of fastening another pipeline 22 of separable mode.First joint of main body 540 and second joint 544,50 are separated from one another by one 90 ° elbow 552.

In addition, main body 540 comprises first branch 553 and second branch 554, and each stretches out from elbow 552.First branch 553 is stretched over and is positioned at 555, the second branches 554 in second joint, 50 rightabout the 3rd joints and then is stretched over and is positioned at first joint, 544 rightabout the 4th joints, 557 places.Third and fourth joint 555 with 557 each is all identical in fact with first and second joints 544,50.Therefore, third and fourth joint 555 and 557 each all accept in the eseparation ring 42 one of them slidably.Eseparation ring 42 and corresponding seal ring (not shown) and grasping mechanism (not shown) cooperate, with the joint 24 of two pipelines 22 of fastening residue.

Elbow 552 has 90 ° of angles, and first and second branches 553,554 separate 90 ° of angles again, so that the main body 540 of connection set 520 is generally X-shape.Also can adopt many other shapes to make the joint of pipeline 22 angled with the combination of any direction.Really, connection set of the present invention even can be connected to axle mutually not on three or more pipeline and/or parts on the same plane.

In a specific embodiment of the present invention, a connection set (not shown) can be processed into and cooperate the branch manifold of irrigating valve or similar device.Described connection set can have an entry end that receive to supply water from main line by it and a plurality of at the outlet end that stretches in the opposite direction with the first joint side, to be connected on the valve that direction is parallel to each other usually.Therefore, connection set can have three fork-shapeds or analogous shape.But, can adopt more than or be less than three outlet end, they need be with respect to the entry end symmetric arrangement.

Entry end and each outlet end can have an eseparation ring 42, so that aforesaid pipeline such as pipeline 22 can connect between connection set, main line and valve.As selection, entry end and/or outlet end can have the whole pipeline that forms of making, as the pipe 346 of first joint 344 of the main body 340 of revolving joint 320.Therefore, described entry end and/or outlet end can be connected on connection set such as connection set 20 or the connection set 220 in separable mode, and connection set is connected on main line and/or the valve.

The present invention under claimed structure, method and other essential feature situation, can adopt other concrete mode to implement in not breaking away from the broadly described and claims of this specification.Described embodiment is usefulness as an illustration only in all cases, and do not use as restriction.Therefore, scope of the present invention is limited by the accompanying claims, rather than the specification of front limits.Fall into the scope that is equal to claims and implication change and all be included within the scope of claims.

Claims (114)

1, irrigation system to soil water supply, this irrigation system comprises:

Irrigate parts for one;

A pipeline; With

A connection set comprises:

Main body comprises that being connected to first joint of irrigating parts and described pipe coupling inserts wherein second joint, and described main body has a cavity, providing the fluid passage irrigating between parts and the pipeline, thereby by main body to soil water supply;

Clamping mechanism is used for tightening pipe coupling pipe coupling is fixed in the hole on the position;

One with respect to main body segregating unit slidably, so that clamping mechanism unclamps pipe coupling.

2, the irrigation system of claim 1, wherein said irrigation parts comprise a washing head.

3, the irrigation system of claim 1, wherein said irrigation parts comprise a backflow preventer.

4, the irrigation system of claim 1, wherein said irrigation parts comprise a valve.

5, the irrigation system of claim 1 is irrigated parts during it is described and is comprised a nozzle that is used for hand-held sprayer.

6, the irrigation system of claim 1, wherein said irrigation parts contain a drip irrigation pipe with holes.

7, the irrigation system of claim 1, wherein said irrigation parts comprise one second pipeline, first joint is run through accepting the joint of second pipeline in hole wherein, and connection set wherein comprises that also one second clamping mechanism is used for tightening second pipe coupling second pipe coupling is fixed in the hole on the position; Connection set wherein also comprises one with respect to main body second segregating unit slidably, so that second clamping mechanism unclamps second pipe coupling.

8, the irrigation system of claim 1, wherein said pipeline comprise one section flexiplastic irrigation pipe.

9, the irrigation system of claim 8, wherein said pipeline are in groundwater supply, and wherein the joint of pipeline and connection set are embedded in underground.

10, the irrigation system of claim 1, first joint of wherein said main body forms with whole manufacturing of irrigation parts.

11, the irrigation system of claim 1, wherein said segregating unit comprise that two are positioned at the axially outer manual execution of stretching out with the realization segregating unit from the hole of rightabout separation handle.

12, the irrigation system of claim 1, wherein said segregating unit comprises an outer sleeve, its size can be around second joint of connection set, and guarantees that the gap between the outer sleeve and second joint is very little, segregating unit mobile is caused interference when preventing that dust from contacting with connection set.

13, the irrigation system of claim 1, wherein said segregating unit includes an outer sleeve, outer sleeve surrounding second joint, to determine the annular space between second joint and the outer sleeve, described segregating unit and main body comprise one first securing means, securing means reaches in the annular space, for segregating unit limits a moving range.

14, the irrigation system of claim 1, wherein said main body also comprise an elbow, to change the fluid flow direction between first joint and second joint.

15, the irrigation system of claim 1, wherein said pipeline comprise that makes between main body and the pipe coupling size that can watertight be connected, and described connection set comprises that the size that a sign indicates connection set can be connected with described pipeline.

16, the irrigation system of claim 1, wherein said clamping mechanism comprises a spring washer that is positioned at the hole, this spring washer comprises a plurality of ratchets, the ratchet bending is overhanging to be connected to accept pipe coupling, when the power of applying attempts the joint of pipeline pulled out, stretch seating on pipeline in the ratchet bending from the hole.

17, the irrigation system of claim 16, wherein said connection set comprise that also one is positioned at hole, the inboard seal ring of spring washer, and seal ring is near the external diameter of pipe coupling, so that substantial water-stop between hole and the pipe coupling to be provided.

18, the irrigation system of claim 17, wherein said connection set also comprise a retaining ring that is connected to main body second joint, so that spring washer and seal ring is fixing in the hole.

19, the irrigation system of claim 1, wherein said segregating unit can be along hole axle linear slide, so that gripping mechanism unclamps pipe coupling.

20, fluid system comprises:

One is selected from and comprises a valve, a backflow preventer, a washing head, the irrigation parts of the group of a female fitting of spray and a water pipe with holes; With

A connection set comprises:

A main body comprises with parts first joint made in one piece and comprises that described pipe coupling can insert second joint in hole wherein that described main body has a cavity, to provide the fluid passage irrigating between parts and the pipeline;

Clamping mechanism is used for tightening pipe coupling pipe coupling is fixed in the hole on the position; With

One with respect to main body segregating unit slidably, so that clamping mechanism unclamps pipe coupling.

21, the fluid system of claim 20, wherein said parts comprise that a valve is with control irrigation water flow.

22, the fluid system of claim 20, wherein said parts comprise that a backflow preventer refluxes with the restriction irrigation water.

23, the fluid system of claim 20, wherein said parts comprise that a washing head is to provide irrigation water to soil.

24, the fluid system of claim 20, wherein said parts comprise a nozzle.

25, the fluid system of claim 24, wherein said nozzle comprise a hand-held sprayer that can be used for providing to soil irrigation water.

26, the fluid system of claim 24, wherein said nozzle are positioned at the hot gas humidification that heater provides for heater.

27, the fluid system of claim 24, wherein said nozzle is used for to the human body mist cooling.

28, the fluid system of claim 20, wherein said parts comprise a female coupling.

29, the fluid system of claim 28, wherein said female coupling thread size can be threaded with the external screw thread garden hoses joint of standard.

30, the fluid system of claim 28, wherein said female coupling thread size can be threaded with the external screw thread washing head of standard.

31, the fluid system of claim 20, wherein said parts comprise a water pipe with holes.

32, the fluid system of claim 31, wherein said water pipe with holes comprise that one is embedded in underground drip irrigation pipe to small part.

33, the fluid system of claim 31, wherein said water pipe with holes is used for supplying water in devaporizer.

34, the fluid system of claim 20, wherein said pipeline comprise one section flexiplastic irrigation pipe.

35, connection set that is used for conveyance fluid between pipeline and fluid system component, this connection set comprises:

One comprises that pipe coupling can insert the main body in hole wherein;

Clamping mechanism is used for tightening pipe coupling pipe coupling is fixed in the hole on the position; With

One with respect to main body segregating unit slidably, so that clamping mechanism unclamps pipe coupling, described segregating unit comprises that two are positioned at the axially outer manual execution of stretching out with the realization segregating unit from the hole of rightabout separation handle.

36, the connection set of claim 35, wherein said gripping mechanism comprises a spring washer that is positioned at the hole, this spring washer comprises a plurality of ratchets, the ratchet bending is overhanging to be connected to accept pipe coupling, when the power of applying attempts the joint of pipeline pulled out, stretch seating on pipeline in the ratchet bending from the hole; Wherein said segregating unit comprises an eseparation ring, and this eseparation ring contains an inner sleeve that stretches in the hole, and the slip eseparation ring can make bandy ratchet unclamp pipe coupling.

37, the connection set of claim 36, wherein said eseparation ring also comprises an outer sleeve, its size can be around second joint of connection set, and guarantee that the gap between the outer sleeve and second joint is very little, segregating unit mobile caused interference when preventing that dust from contacting with connection set.

38, the connection set of claim 36, wherein said segregating unit includes an outer sleeve, outer sleeve surrounding second joint, to determine the annular space between second joint and the outer sleeve, described segregating unit and main body comprise one first securing means, securing means reaches in the annular space, for segregating unit limits a moving range.

39, the connection set of claim 36, wherein said segregating unit comprise one around the outer sleeve of second joint and the annular wall between inner sleeve and outer sleeve, annular wall wherein near second joint with restriction eseparation ring moving with respect to main body; The direction of extension of separation handle wherein and annular wall be coplane in fact.

40, the connection set of claim 35, wherein each separated handle and all comprised a surface of contact, and its big I is accepted from the pressure of a finger of user driving segregating unit, and this pressure separates handle and produces by pushing with hand.

41, connection set that is used for conveyance fluid between pipeline and fluid system component, this connection set comprises:

A main body that comprises first joint and second joint, described second joint comprise that a pipe coupling can insert hole wherein;

Clamping mechanism is used for tightening pipe coupling pipe coupling is fixed in the hole on the position; With

One with respect to main body segregating unit slidably, so that clamping mechanism unclamps pipe coupling, described segregating unit comprises an outer sleeve, its size can be around second joint of connection set, and guarantee that the gap between the outer sleeve and second joint is very little, segregating unit mobile caused interference when preventing that dust from contacting with connection set.

42, the connection set of claim 41, wherein said clamping mechanism comprises a spring washer that is positioned at the hole, this spring washer comprises a plurality of ratchets, the ratchet bending is overhanging to be connected to accept pipe coupling, when the power of applying attempts the joint of pipeline pulled out, stretch seating on pipeline in the ratchet bending from the hole; Wherein said segregating unit comprises an eseparation ring, and this eseparation ring contains an inner sleeve that stretches in the hole, and the slip eseparation ring can make bandy ratchet unclamp pipe coupling.

43, the connection set of claim 42, wherein said segregating unit comprises an annular wall between inner sleeve and outer sleeve, annular wall wherein near second joint with the restriction eseparation ring with respect to the moving of main body, gap wherein is small enough to substantially to stop and enters between the annular wall and second joint.

44, the connection set of claim 42, wherein said outer sleeve is determined the annular space between one second joint and the outer sleeve, described segregating unit and main body comprise one first securing means, and securing means reaches in the annular space, for segregating unit limits a moving range.

45, the connection set of claim 41, wherein said gap is less than 0.02 inch.

46, the connection set of claim 45, nominally wherein said outer sleeve comprises one and the equal internal diameter of the second joint external diameter, the gap that segregating unit and second joint is assembled to provide can be provided outer sleeve.

47, the connection set of claim 41, wherein said gap along second joint shaft to stretching at least 0.25 inch.

48, connection set that is used for conveyance fluid between pipeline and fluid system component, this connection set comprises:

A main body that comprises first joint and second joint, described second joint comprise that a pipe coupling can insert hole wherein;

Clamping mechanism is used for tightening pipe coupling pipe coupling is fixed in the hole on the position; With

One with respect to main body segregating unit slidably, so that clamping mechanism unclamps pipe coupling, described segregating unit comprises an outer sleeve, second joint of outer sleeve surrounding connection set, determine the annular space between one second joint and the outer sleeve, described segregating unit and main body comprise one first securing means, and securing means reaches in the annular space, for segregating unit limits a moving range.

49, the connection set of claim 48, wherein said segregating unit comprises an annular wall between inner sleeve and outer sleeve, annular wall wherein near second joint with the restriction eseparation ring with respect to the moving of main body, gap wherein is small enough to and can substantially stops dust to enter between the annular wall and second joint.

50, the connection set of claim 48, wherein said segregating unit and main body comprise that also one extend into second securing means in space that goes in ring from first securing means at the opposite side of second joint, thereby second securing means and first securing means are cooperated to limit the moving range of segregating unit.

51, the connection set of claim 48, wherein said segregating unit and main body also comprise the groove that one first securing means can move within it, thereby the end by first securing means and described groove is near the moving range that limits segregating unit.

52, the connection set of claim 51, wherein said first securing means is fixed with respect to second joint, and described groove forms in outer sleeve.

53, the connection set of claim 52, wherein said first securing means comprises a slope, when impelling segregating unit to shift to second joint when exerting pressure, causes the outer sleeve distortion, thereby the segregating unit and second joint are assembled.

54, connection set that is used for conveyance fluid between pipeline and fluid system component, this connection set comprises:

A main body that comprises first joint and second joint, described second joint comprise that a pipe coupling can insert hole wherein, and described main body also comprises an elbow, to change the flow direction of the fluid that flows between first joint and second joint;

Clamping mechanism is used for tightening pipe coupling pipe coupling is fixed in the hole on the position; With

One with respect to main body segregating unit slidably, so that clamping mechanism unclamps pipe coupling.

55, the connection set of claim 54, first joint of wherein said main body can be inserted on a plurality of directions in the hole of second connection set, so that swivel joint of the common formation of this connection set and second connection set.

56, the connection set of claim 54, wherein said elbow comprise 90 ° of angles.

57, the connection set of claim 54, wherein said main body also comprise first branch that ends at the 3rd joint, and liquid stream circulates between this branch, first joint and second joint by main body.

58, the connection set of claim 57, wherein said first branch stretches out from elbow, makes connection set have T-shape shape.

59, the connection set of claim 57, wherein said main body also comprise one second branch, and first and second branches stretch out from elbow, make connection set have X-shape shape.

60, the connection set of claim 54, wherein said connection set are the parts for the irrigation system of soil water supply, and wherein whole manufacturing of the irrigation parts of first joint of main body and irrigation system forms.

61, the connection set of claim 54, insertable second hole of the joint that wherein said first joint comprises second pipeline, described connection set also comprises:

Second clamping mechanism is used for tightening second pipe coupling pipe coupling is fixed in the hole on the position; With

One with respect to main body second segregating unit slidably, so that second clamping mechanism unclamps second pipe coupling.

62, connection set that is used for conveyance fluid between pipeline and fluid system component, this connection set comprises:

One comprises that pipe coupling can insert the main body in hole wherein, the size that wherein said pipeline is selected can realization body and the watertight of pipe coupling be connected.

Clamping mechanism is used for tightening pipe coupling pipe coupling is fixed in the hole on the position; With

One with respect to main body segregating unit slidably, so that clamping mechanism unclamps pipe coupling;

Comprise a sign comprising in the group of main body and segregating unit at least one, can accept pipe coupling with the size that indicates connection set.

63, the connection set of claim 62, wherein said sign indicates the size of pipeline, and this is of a size of the outside dimension of the receptible pipeline in hole, to provide water tightness to cooperate and can make grasping mechanism catch the joint of pipeline securely.

64, the connection set of claim 62, wherein said sign comprise that at least the part in main body has a kind of color.

65, the connection set of claim 64, wherein said color is identical in fact with the color that the part on pipeline at least has.

66, the connection set of claim 64, wherein said color are blue.

67, the connection set of claim 64, wherein said color comprise that by the plastic that adopts same hue in the group of main body and segregating unit at least one provides.

68, one is used for the pipeline of irrigation system is connected to the swivel joint of irrigating parts, and this swivel joint comprises:

First connection set comprises:

A main body that comprises first joint and second joint, second joint have a pipe coupling can insert wherein hole;

Clamping mechanism is used for tightening pipe coupling pipe coupling is fixed in the hole on the position; With

Second connection set comprises:

A main body that comprises first joint and second joint, second joint have first joint of one first connection set can insert wherein hole, and an elbow that is used for changing the flow direction of the fluid that flows between first joint and second joint; With

First joint that clamping mechanism is used for tightening the main body of first connection set is fixed in the hole on the position with first joint with the main body of first connection set;

Wherein first joint of the main body of first connection set can be inserted in the hole of second connection set along a plurality of directions, so that relative first connection set of elbow is in a plurality of different directions.

69, the swivel joint of claim 68, first joint of the main body of wherein said first connection set comprise the identical in fact pipe of external diameter of an external diameter and pipeline.

70, the swivel joint of claim 68, each of wherein said first connection set and second connection set all include one with respect to the main body of correspondence segregating unit slidably, so that grasping mechanism unclamps the joint of pipeline.

71, the swivel joint of claim 68, the main body of wherein said first connection set comprise the elbow of flow direction of the fluid that flows of a main body that is used for changing first connection set between first joint and second joint.

72, the swivel joint of claim 71, the main body of wherein said second connection set comprises the elbow of flow direction of the fluid that flows of a main body that is used for changing second connection set between first joint and second joint, each elbow wherein comprises an about angle of 90 °, makes first joint of main body of second connection set to be in and comprises parallel with pipeline with vertical with pipeline a plurality of positions.

73, the swivel joint of claim 68, wherein said swivel joint are the part to the irrigation system of soil water supply, and wherein said pipeline is in groundwater supply, and the pipe coupling and first connection set are embedded in underground.

74, adopt a connection set that the method for fluid passage is provided between the irrigation parts of irrigation system and pipeline, described connection set comprises a main body, this main body comprises first joint and described pipe coupling insertion second joint wherein, described main body has a cavity, between first joint and second joint, to provide the fluid passage, with a spring washer that is arranged in the hole, this spring washer comprises a plurality of aduncate ratchets, and described method comprises:

Connect and irrigate parts to first joint;

Water the joint of pipeline inserted in the hole of second joint, so that can flow between irrigation parts and pipeline by described main body; With

The joint of firmly grasping pipeline with the ratchet of spring washer is fastened on the joint of pipeline in the hole.

75, the method for claim 74, wherein said main body comprise that a sign can accept pipeline to indicate connection set, and described method comprises that also observing sign can accept pipe coupling in the mode of watertight in fact with the size of determining connection set.

76, the method for claim 74 wherein is inserted into pipe coupling in the hole comprising in the pipe coupling patchhole along being connected to the uneven direction of the first joint direction with the irrigation parts.

77, the method for claim 74, also comprise connection set is embedded in underground so that irrigate that parts are in a suitable position and by it to soil water supply, wherein said pipeline comprises that one section flexiplastic irrigates with pipe.

78, the method for claim 74, the joint with pipeline wherein are inserted into and comprise in the hole and make the ratchet excurvation to accept pipeline, and promptly pipe coupling wherein comprises when exerting pressure makes the ratchet seating on pipeline will be with the pipeline pull-out-hole time.

79, the method in the claim 78, the joint with pipeline wherein are inserted into and comprise in the hole by a seal ring that is positioned at the hole, the curved joint with pipeline of spring washer and inserting, with and the external diameter of pipeline between substantial water-stop is provided.

80, the method in the claim 79, the joint with pipeline wherein are inserted into and comprise in the hole by a retaining ring that is connected on the main body joint of pipeline is inserted, and described retaining ring is with spring washer and seal ring fix in position.

81, the method in the claim 80, irrigation parts wherein comprise one second pipeline, first joint is run through to accept the joint of second pipeline in wherein said hole, and connection set wherein also comprises one second spring washer, and the wherein said parts of will irrigating are connected to first joint and comprise:

The joint of second pipeline is inserted in the hole of first joint; With

With the ratchet of second spring washer promptly the joint of second pipeline joint of pipeline is fastened in the hole.

82, a kind of in irrigation system the irrigation parts and pipeline between the method for fluid passage is provided, described method comprises:

A joint of pipeline is inserted into comprises one and irrigate in the hole of second joint of the whole main body of making first joint that forms of parts, so that water can flow between irrigation parts and pipeline by described main body, irrigation parts wherein are selected from the group that comprises valve, backflow preventer, washing head, nozzle, female coupling and a water pipe with holes; With

The joint of firmly grasping pipeline with a plurality of aduncate ratchets that are positioned at the spring washer in hole is fastened on the hole with the joint of pipeline.

83, the method in the claim 82, wherein said fluid system is an irrigation system, parts are for irrigating parts, described method also comprise connection set is embedded in underground, be in a suitable position and pass through it to soil water supply so that irrigate parts, wherein said pipeline comprises one section flexiplastic irrigation pipe.

84, the method in the claim 82, wherein said joint with pipeline is inserted into and comprises in the hole parts are connected on the equipment that is selected from the group that comprises heater and devaporizer, is the gas humidification that described equipment is discharged so that these parts provide moisture.

85, the method in the claim 82, wherein said joint with pipeline are inserted into and comprise in the hole parts are connected to an atomization system, are the nice and cool human body of air wetting so that these parts provide moisture.

86, the method in the claim 82, wherein said joint with pipeline are inserted into and comprise in the hole parts are connected on the equipment that is selected from the group that comprises standard garden hoses and standard garden tap.

87, thereby a kind of pipeline that makes breaks away from the method for cutting off and irrigating the fluid passage between the parts from connection set, described connection set comprises a main body, and this main body comprises and is connected to first joint of irrigating parts and comprises that a pipe coupling can insert second joint in hole wherein; Described main body has a cavity, providing the fluid passage irrigating between parts and the pipeline, thereby by main body to soil water supply; Clamping mechanism is used for tightening pipe coupling pipe coupling is fixed in the hole on the position; With a segregating unit; Described method comprises:

With respect to main body slip segregating unit, so that grasping mechanism unclamps pipe coupling; With

From the hole, pull out pipe coupling, to cut off pipeline and to irrigate the fluid passage of parts.

88, the method in the claim 87, wherein said segregating unit comprises the separation handle that stretches of two positioned opposite outside the hole is axial, to realize the manual drives of segregating unit, wherein said slip segregating unit comprises with hand exerts pressure to separating on the handle.

89, the method in the claim 87, wherein said segregating unit comprises an outer sleeve, its size can be around second joint of connection set, and guarantee that the gap between the outer sleeve and second joint is very little, when preventing that dust from contacting with connection set to segregating unit mobile cause interference, wherein said slip segregating unit comprise along and the second substantive parallel joint sliding outer sleeve of hole axle.

90, the method in the claim 87, wherein said segregating unit comprises around the outer sleeve of second joint to determine the annular space between one second joint and the outer sleeve, described main body comprises one first securing means, securing means reaches in the annular space, outer sleeve comprises a groove, and wherein said slip segregating unit comprises with respect to first securing means and moves described groove.

91, the method for claim 87, wherein said connection set also comprises a curved external diameter near pipe coupling of seal ring, spring washer that is positioned at the hole, thereby substantial water-stop is provided between hole and pipe coupling, wherein saidly the joint that comprises pipeline is pulled out in pipe coupling pulls out seal ring from the hole.

92, the method for claim 87, wherein said irrigation parts are made separately and are formed, and are connected to first joint of the main body of connection set separatably.

93, the method in the claim 87, the whole manufacturing of first joint of the main body of wherein said irrigation parts and connection set forms.

94, the method for claim 87, wherein said connection set and pipe coupling are buried under the ground at first, and described method also is included in to be removed earth before the slip segregating unit connection set is exposed.

95, a kind ofly indicate the method that connection set and irrigation conduit can cooperatively interact, described method comprises:

On irrigation conduit, provide a sign to indicate at least one size of irrigation conduit; With

On connection set, provide a sign to indicate receptible at least one line size of connection set, the sign of wherein said connection set is corresponding with the sign of irrigation conduit, described sign can be compared,, definite irrigation conduit accepts thereby being connected device.

96, the method for claim 95, wherein said provide a sign to comprise on the connection set to provide one with irrigation conduit on the identical in fact sign of sign.

97, the method for claim 96 wherein saidly provides a sign to comprise the external diameter that indicates an irrigation conduit on connection set, so that a substantial water-stop to be provided between irrigation conduit and connection set.

98, the method for claim 96 wherein saidly provides a sign to comprise on connection set a kind of color is provided.

99, the method for claim 98, wherein said at least a portion that on irrigation conduit, provides a sign to comprise usefulness colored plastic molding irrigation conduit, wherein said at least a portion that on connection set, provides a sign to comprise usefulness colored plastic molding connection set.

100, the method for claim 98 wherein saidly provides a sign to comprise on connection set a kind of blueness is provided.

101, irrigation system that is used for to soil water supply, this irrigation system comprises:

Irrigate parts for one;

A pipeline; With

A connection set comprises:

A main body comprises that being connected to first joint of irrigating parts and described pipe coupling inserts wherein second joint, and described main body has a cavity, providing the fluid passage irrigating between parts and the pipeline, thereby by main body to soil water supply; With

A spring washer that is positioned at the hole, described spring washer comprise that a plurality of promptly joints of pipeline are fastened on the joint of pipeline on a plurality of ratchets of a position in the hole.

102, the irrigation system of claim 101, wherein said irrigation parts comprise a washing head.

103, the irrigation system of claim 101, wherein said irrigation parts comprise a backflow preventer.

104, the irrigation system of claim 101, wherein said irrigation parts comprise a valve.

105, the irrigation system of claim 101, wherein said irrigation parts comprise a nozzle that is used for hand-held sprayer.

106, the irrigation system of claim 101, wherein said irrigation parts comprise a drip irrigation pipe with holes.

107, the irrigation system of claim 101, wherein said irrigation parts comprise one second pipeline, first joint is run through accepting the joint of second pipeline in hole wherein, and connection set wherein comprises that also one second spring washer is used for tightening second pipe coupling second pipe coupling is fixed in the hole on the position;

108, the irrigation system of claim 101, wherein said pipeline comprise one section flexiplastic irrigation pipe.

109, profit requires 108 irrigation system, and wherein said pipeline is in groundwater supply, and wherein the joint of pipeline and connection set are embedded in underground.

110, the irrigation system of claim 101, first joint of wherein said main body forms with whole manufacturing of irrigation parts.

111, the irrigation system of claim 101, wherein said main body also comprise an elbow, to change the fluid flow direction between first joint and second joint.

112, the irrigation system of claim 101, wherein said pipeline comprises the size that making between main body and the pipe coupling of a selection can watertight be connected, and described connection set comprises that the size that a sign indicates connection set can be connected with described pipeline.

113, the irrigation system of claim 101, wherein said connection set also comprise a seal ring that is positioned at the hole, curved external diameter in the spring washer near pipe coupling, thus substantial water-stop is provided between hole and pipe coupling.

114, the irrigation system of claim 113, wherein said connection set also comprise a retaining ring that is connected on main body second joint, and described retaining ring puts spring washer and seal ring in place at the hole internal fixation.

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