CN102506252A - Pipeline extension sleeve sealing structure - Google Patents
Pipeline extension sleeve sealing structure Download PDFInfo
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- CN102506252A CN102506252A CN2011102796163A CN201110279616A CN102506252A CN 102506252 A CN102506252 A CN 102506252A CN 2011102796163 A CN2011102796163 A CN 2011102796163A CN 201110279616 A CN201110279616 A CN 201110279616A CN 102506252 A CN102506252 A CN 102506252A
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Abstract
The invention discloses a pipeline extension sleeve sealing structure, which is used for butting pipelines and is capable of not only absorbing vibration, but also ensuring the sealing performance of the pipelines. The pipeline extension sleeve sealing structure comprises a first pipeline, a second pipeline, a sleeve, a first gland and a second gland, the first gland and the second gland are arranged at two ends of the sleeve, a first Y-shaped sealing ring and a first V-shaped elastic washer are sequentially arranged between the first gland and the sleeve, and a second Y-shaped sealing ring and a second V-shaped elastic washer are sequentially arranged between the second gland and the sleeve. The vibration can be absorbed by the aid of elasticity of the first V-shaped elastic washer and the second V-shaped elastic washer, and the sealing performance of the pipelines can be enhanced at higher fluid pressure by increasing a Y-shaped included angle formed between the first Y-shaped sealing ring and the second Y-shaped sealing ring. In addition, when alignment of the first pipeline and the second pipeline has a little deviation, the excellent sealing performance can still be ensured, and the pipeline extension sleeve sealing structure is particularly suitable for popularization and application to sealing connection of two pipelines in butt joint.
Description
Technical field
The present invention relates to a kind of sealing configuration, be specifically related to a kind of pipeline telescopic cover sealing configuration that on the butt joint pipeline, uses.
Background technique
At present, the big flow system of low pressure (less than 2Mpa) in, pump discharge end arm and more use telescopic cover mounting type of connecting of main pipe.Its objective is the vibration that utilizes telescopic cover to eliminate pump working and fluid generation, and the mounting point can guarantee to overhaul water pump the time.Rectangular seal is used in used telescopic cover sealing.There are following problem in this kind structure and sealing means:
1), rectangular seal will guarantee that sealability must compress rectangular seal with the two ends gland, but the elastic performance after rectangular seal compresses descends, and can cause the absorbing decreased performance to pipeline.Just compare contradiction so will guarantee the sealability of pipeline and the vibration of extraction duct simultaneously.
2) wear extent that, the rectangular seal of this kind structure can not the automatic compensation sealing circle goes to guarantee that sealability does not descend.And rectangular seal relatively responsive to moderate to the two ends pipeline when mounted, in compaction process, take place crooked easily and influence sealability.
Summary of the invention
Technical problem to be solved by this invention provides a kind of pipeline telescopic cover sealing configuration that can absorbing can guarantee the seal for pipe joints performance again.
The technical solution adopted for the present invention to solve the technical problems is: pipeline telescopic cover sealing configuration; First pipeline and second pipeline that comprise mutual butt joint; Outside first pipeline and second pipeline, be movably installed with sleeve; Be respectively arranged with first gland and second gland at the two ends of sleeve; Said first gland is fixedly set in outside first pipeline, and second gland is fixedly set in outside second pipeline, between first gland and sleeve, has been disposed in order first y-type seal ring and the first V-type elastic washer; The said first V-type elastic washer be engaged in the Y type mouth of first y-type seal ring and the Y type mouth of the V-type mouth of the first V-type elastic washer and first y-type seal ring all towards sleeve, the lip limit of first y-type seal ring is sealed and matched between the inwall of the outer wall of first pipeline and sleeve; Second y-type seal ring and the second V-type elastic washer between second gland and sleeve, have been disposed in order; The said second V-type elastic washer be engaged in the Y type mouth of second y-type seal ring and the Y type mouth of the V-type mouth of the second V-type elastic washer and second y-type seal ring all towards sleeve, the lip limit of second y-type seal ring is sealed and matched between the inwall of the outer wall of second pipeline and sleeve.
Further be; Between the first V-type elastic washer and first gland, be provided with the first tension adjusting element; The said first tension adjusting element is connected on first gland pass the Y type mouth, first y-type seal ring of the first V-type elastic washer, first y-type seal ring from the V-type mouth of the first V-type elastic washer after; The v-angle α 1 of the first V-type elastic washer is greater than the Y type angle β 1 of first y-type seal ring; And on the tension direction of the first tension adjusting element, has space D 1 between the first V-type elastic washer and first y-type seal ring; Between the second V-type elastic washer and second gland, be provided with the second tension adjusting element; The said second tension adjusting element is connected on second gland pass the Y type mouth, second y-type seal ring of the second V-type elastic washer, second y-type seal ring from the V-type mouth of the second V-type elastic washer after; The v-angle α 2 of the second V-type elastic washer is greater than the Y type angle β 2 of second y-type seal ring; And on the tension direction of the second tension adjusting element, has space D 2 between the second V-type elastic washer and second y-type seal ring.
As optimized technical scheme, the said first tension adjusting element is first attachment bolt, and first gland, first y-type seal ring, the first V-type elastic washer are arranged sequentially between the outer end nut and interior end nut of first attachment bolt; The said second tension adjusting element is second attachment bolt, and second gland, second y-type seal ring, the second V-type elastic washer are arranged sequentially between the outer end nut and interior end nut of second attachment bolt.
Further be, between first attachment bolt and the first V-type elastic washer, be provided with an O RunddichtringO, between second attachment bolt and the second V-type elastic washer, be provided with the 2nd O RunddichtringO.
Further be between the outer end nut of first attachment bolt and first gland, to be provided with first resilient compressible member; Between the outer end nut of second attachment bolt and second gland, be provided with second resilient compressible member.
As optimized technical scheme, said first y-type seal ring, second y-type seal ring adopt nitrile rubber or butyl rubber to make, and the said first V-type elastic washer, the second V-type elastic washer adopt stainless steel material to make.
Further be that said first gland is fixedly set in outside first pipeline through a plurality of first Cock screws; Said second gland is fixedly set in outside second pipeline through a plurality of second Cock screws.
The invention has the beneficial effects as follows: during work, when pipeline produces vibration, the elasticity absorbed oscillation of the first V-type elastic washer capable of using and the second V-type elastic washer; Simultaneously, can utilize first y-type seal ring, second y-type seal ring the increase function of Y type angle, under the big more situation of hydrodynamic pressure, realize that the sealability of pipeline strengthens; In addition; The elastic pressure of the first V-type elastic washer capable of using and the second V-type elastic washer; When first pipeline and second pipeline some is permitted deviation to moderate the time, still can guarantee to have good sealability, apply during the seal for pipe joints that is particluarly suitable for two butt joints connects.
Description of drawings
Fig. 1 is a pipeline telescopic cover sealed structural representation of the prior art;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is the local structure for amplifying schematic representation at A place among Fig. 2;
Fig. 4 is the local structure for amplifying schematic representation at B place among Fig. 2;
Fig. 5 is the structural representation of the first V-type elastic washer among Fig. 2;
Fig. 6 is the structural representation of the second V-type elastic washer among Fig. 2;
Fig. 7 is the structural representation of first y-type seal ring among Fig. 2;
Fig. 8 is the structural representation of second y-type seal ring among Fig. 2.
Be labeled as among the figure: first pipeline 1; Second pipeline 2; Sleeve 3; First gland 4; Second gland 5; First y-type seal ring 6; The first V-type elastic washer 7; Second y-type seal ring 8; The second V-type elastic washer 9; Y type mouth 10; V-type mouth 11; Y type mouth 12; V-type mouth 13; First attachment bolt 14; Second attachment bolt 15; Outer end nut 16; First resilient compressible member 17; Outer end nut 18; Second resilient compressible member 19; Interior end nut 20; Interior end nut 21; First Cock screw 22; Second Cock screw 23; The one O RunddichtringO 24; The 2nd O RunddichtringO 25.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Extremely shown in Figure 8 like Fig. 2; Pipeline telescopic cover sealing configuration of the present invention; First pipeline 1 and second pipeline 2 that comprise mutual butt joint; Outside first pipeline 1 and second pipeline 2, be movably installed with sleeve 3, be respectively arranged with first gland 4 and second gland 5 at the two ends of sleeve 3, said first gland 4 is fixedly set in outside first pipeline 1; Second gland 5 is fixedly set in outside second pipeline 2; Between first gland 4 and sleeve 3, be disposed in order first y-type seal ring 6 and the first V-type elastic washer 7, the said first V-type elastic washer 7 is engaged in the Y type mouth 10 of first y-type seal ring 6 and the Y type mouth 10 of the V-type mouth 11 of the first V-type elastic washer 7 and first y-type seal ring 6 all is sealed and matched between the inwall of the outer wall of first pipeline 1 and sleeve 3 towards the lip limit of sleeve 3, the first y-type seal rings 6; Second y-type seal ring 8 and the second V-type elastic washer 9 between second gland 5 and sleeve 3, have been disposed in order; The said second V-type elastic washer 9 is engaged in the Y type mouth 12 of second y-type seal ring 8 and the Y type mouth 12 of the V-type mouth 13 of the second V-type elastic washer 9 and second y-type seal ring 8 all is sealed and matched between the inwall of the outer wall of second pipeline 2 and sleeve 3 towards the lip limit of sleeve 3, the second y-type seal rings 8.During work, when pipeline produces vibration, the elasticity absorbed oscillation of the first V-type elastic washer 7 capable of using and the second V-type elastic washer 9.In addition; Because the lip limit of first y-type seal ring 6 is sealed and matched between the inwall of the outer wall of first pipeline 1 and sleeve 3 and the Y type mouth 10 of first y-type seal ring 6 towards sleeve 3; The lip limit of second y-type seal ring 8 be sealed and matched between the inwall of the outer wall of second pipeline 2 and sleeve 3 and the Y type mouth 12 of second y-type seal ring 8 towards sleeve 3; When the hydrodynamic pressure between first pipeline 1 and second pipeline 2 raises; The Y type mouth 10 of first y-type seal ring 6 and the Y type mouth of second y-type seal ring 8 12 can make the angle of opening increase along with the rising of hydrodynamic pressure, thus can be when hydrodynamic pressure raises the enhanced leaktightness performance.Secondly; Because it is consistent that the first V-type elastic washer 7 is engaged in Y type mouth 10 Y type mouth 12 opening directions interior and V-type mouth 13 and Y type mouth 12 interior and that V-type mouth 11 is consistent with the opening direction of Y type mouth 10, the second V-type elastic washer 9 cooperates second y-type seal ring 8 of first y-type seal ring 6; The elastic pressure of the first V-type elastic washer 7 capable of using, 9 pairs first y-type seal rings of the second V-type elastic washer 6, second y-type seal ring 8; When first pipeline 1 and second pipeline 2 some is permitted deviation to moderate the time, still can guarantee to have good sealability.
On the basis of above-mentioned mode of execution; When first y-type seal ring 6, second y-type seal ring 8 in use for some time; Unavoidably cause wearing and tearing; Like this, will cause between first y-type seal ring 6 and first pipeline 1, the sleeve 3 and form the gap, form the gap between second y-type seal ring 8 and second pipeline 2, the sleeve 3; Cause the fluid in first pipeline 1 and second pipeline 2 to reveal; Therefore, form and reveal, between the first V-type elastic washer 7 and first gland 4, be provided with first and strain adjusting element in order to prevent first y-type seal ring 6, second y-type seal ring, 8 wearing and tearing backs; The said first tension adjusting element is connected on first gland 4 pass the Y type mouth 10, first y-type seal ring 6 of the first V-type elastic washer 7, first y-type seal ring 6 from the V-type mouth 11 of the first V-type elastic washer 7 after; The v-angle α 1 of the first V-type elastic washer 7 is greater than the Y type angle β 1 of first y-type seal ring 6, and on the tension direction of the first tension adjusting element, has space D 1 between the first V-type elastic washer 7 and first y-type seal ring 6; Between the second V-type elastic washer 9 and second gland 5, be provided with the second tension adjusting element; The said second tension adjusting element is connected on second gland 5 pass the Y type mouth 12, second y-type seal ring 8 of the second V-type elastic washer 9, second y-type seal ring 8 from the V-type mouth 13 of the second V-type elastic washer 9 after; The v-angle α 2 of the second V-type elastic washer 9 is greater than the Y type angle β 2 of second y-type seal ring 8; And on the tension direction of the second tension adjusting element, has space D 2 between the second V-type elastic washer 9 and second y-type seal ring 8.After wearing and tearing appear in first y-type seal ring 6, second y-type seal ring 8; Through the first tension adjusting element direction of the first V-type elastic washer 7 toward first gland 4 spurred; Make the Y type mouth 10 of the y-type seal ring 6 of winning under the effect of the first V-type elastic washer 7, increase angle (even β 1 increases); Thereby guarantee that the lip limit of first y-type seal ring 6 and the outer wall of first pipeline 1 and the inwall of sleeve 3 form sealing, avoid causing leakage.Same; When wearing and tearing appear in second y-type seal ring 8; Also adopt same operation to guarantee sealing; Promptly the direction of the second V-type elastic washer 9 toward second gland 5 spurred, make the Y type mouth 12 of second y-type seal ring 8 under the effect of the second V-type elastic washer 9, increase angle (even β 2 increases), thereby guarantee that the lip limit of second y-type seal ring 8 and the outer wall of second pipeline 2 and the inwall of sleeve 3 form sealing through the second tension adjusting element.Wherein, The v-angle α 1 of the first V-type elastic washer 7 is greater than the Y type angle β 1 of first y-type seal ring 6; And the v-angle α 2 of the second V-type elastic washer 9 all is can guarantee that the Y type angle β 1 of first y-type seal ring 6, the Y type angle β 2 of second y-type seal ring 8 can constantly increase in order to guarantee when the pulling first V-type elastic washer 7, the second V-type elastic washer 9 greater than the Y type angle β 2 of second y-type seal ring 8.And has space D 1 between the first V-type elastic washer 7 and first y-type seal ring 6; Has space D 2 between the second V-type elastic washer 9 and second y-type seal ring 8; Be in order to guarantee when the pulling first V-type elastic washer 7, the second V-type elastic washer 9, the first V-type elastic washer 7, the second V-type elastic washer 9 have mobile space.
In the above-described embodiment; The first tension adjusting element, the second tension adjusting element all can adopt wire rope or steel wire to make; When first y-type seal ring 6, when wearing and tearing appear in second y-type seal ring 8, can be through pulling wire rope or steel wire with the first V-type elastic washer 7, the second V-type elastic washer 9 respectively toward the direction pulling of first gland 4, second gland 5; Or the first tension adjusting element, the second tension adjusting element adopt the driven by motor chain to realize that the first V-type elastic washer 7, the second V-type elastic washer 9 are respectively toward the direction pulling of first gland 4, second gland 5.As preferred mode:
The said first tension adjusting element is that first attachment bolt, 14, the first glands 4, first y-type seal ring 6, the first V-type elastic washer 7 are arranged sequentially between the outer end nut 16 and interior end nut 20 of first attachment bolt 14; The said second tension adjusting element is that second attachment bolt, 15, the second glands 5, second y-type seal ring 8, the second V-type elastic washer 9 are arranged sequentially between the outer end nut 18 and interior end nut 21 of second attachment bolt 15.Like this; When first y-type seal ring 6, when wearing and tearing appear in second y-type seal ring 8; Outer end nut 16 through turn first attachment bolt 14, the outer end nut 18 of second attachment bolt 15 can spur the first V-type elastic washer 7, the second V-type elastic washer 9 respectively toward the direction motion of first gland 4, second gland 5, and the Y type angle β 2 that realizes Y type angle β 1, second y-type seal ring 8 of first y-type seal ring 6 increases and forms sealing.This is simple in structure, and is easy to operate.
When first attachment bolt 14, second attachment bolt 15 pass the first V-type elastic washer 7, the second V-type elastic washer 9 respectively; For preventing that the gap between gap, second attachment bolt 15 and the second V-type elastic washer 9 between first attachment bolt 14 and the first V-type elastic washer 7 from forming leakage; Like Fig. 3 and shown in Figure 4; Between first attachment bolt 14 and the first V-type elastic washer 7, be provided with an O RunddichtringO 24, between second attachment bolt 15 and the second V-type elastic washer 9, be provided with the 2nd O RunddichtringO 25.
For under the situation of the outer end nut 18 of the outer end nut 16 of not turn first attachment bolt 14, second attachment bolt 15; Also can realize the automatic motion of the first V-type elastic washer 7, the second V-type elastic washer 9 and increase the Y type angle β 1 of first y-type seal ring 6, the Y type angle β 2 of second y-type seal ring 8, between the outer end nut 16 of first attachment bolt 14 and first gland 4, be provided with first resilient compressible member 17; Between the outer end nut 18 of second attachment bolt 15 and second gland 5, be provided with second resilient compressible member 19.Like this; When the inwall that outer wall and the sleeve 3 of wearing and tearing and first pipeline 1 occur when first y-type seal ring 6 forms the gap; Owing to be provided with first resilient compressible member 17 between the outer end nut 16 of first attachment bolt 14 and first gland 4; Can make first attachment bolt, 14 outward through the elastic force of first resilient compressible member 17; Thereby spur the Y type angle β 1 that the first V-type elastic washer 7 increases first y-type seal ring 6 automatically, thereby realize the automatic compensation in gap, guarantee to form between the inwall of outer wall and sleeve 3 of first y-type seal ring 6 and first pipeline 1 and seal.Equally, when wearing and tearing appear in second y-type seal ring 8, also can realize the automatic compensation in gap between second y-type seal ring 8 and second pipeline 2 and the sleeve 3 through second resilient compressible member 19.And when the elastic force of first resilient compressible member 17, second resilient compressible member 19 is not enough, the compensation in outer end nut 16 that can also be through turn first attachment bolt 14, the outer end nut 18 realization gaps of second attachment bolt 15.Being provided with of first resilient compressible member 17, second resilient compressible member 19 mainly is in order to realize when first y-type seal ring 6, when wearing and tearing appear in second y-type seal ring 8; Realize the automatic compensation in gap, first resilient compressible member 17, second resilient compressible member 19 can adopt elastic caoutchouc, spring etc. to make and form.
In above mode of execution; First y-type seal ring 6, second y-type seal ring 8 can adopt making such as plastics, metallic material; The first V-type elastic washer 7, the second V-type elastic washer 9 also can adopt material such as plastics, metal; And as preferred mode, said first y-type seal ring 6, second y-type seal ring 8 adopt nitrile rubbers or butyl rubber to make, and the said first V-type elastic washer 7, the second V-type elastic washer 9 adopt stainless steel materials to make.First y-type seal ring 6, second y-type seal ring 8 are selected nitrile rubber or butyl rubber for use, and these two kinds of rubber materials are hydrolysis resistance all, is applicable to the sealing of aqueous medium.The first V-type elastic washer 7, the second V-type elastic washer 9 are selected stainless steel material for use, and one of which can guarantee to apply enough lasting sealing force to the sealing surface of first y-type seal ring 6, second y-type seal ring 8; Its two owing to be to be operated in the aqueous medium, can prevent corrosion, increase the service life.In addition, the first V-type elastic washer 7, the second V-type elastic washer 9 preferably selects for use spring to use stainless steel material, is 1Cr18Ni9 like material trademark; The stainless steel of 0Cr18Ni10.
In above mode of execution; First gland 4 is fixedly set in first pipeline, 1 outer mode can adopt welding; Be threaded etc., it also is to adopt welding that second gland 5 is fixedly set in the outer modes of second pipeline 2, and mode such as be threaded realizes; As preferred mode, said first gland 4 is fixedly set in outside first pipeline 1 through a plurality of first Cock screws 22; Said second gland 5 is fixedly set in outside second pipeline 2 through a plurality of second Cock screws 23.Promptly first gland 4 is fixed on first gland 4 on first pipeline 1 through the head of first Cock screw 22 and the frictional force between first pipeline, 1 outer wall; Second gland 5 is fixed on second gland 5 on second pipeline 2 through the head of second Cock screw 23 and the frictional force between second pipeline, 2 outer walls, can be convenient to the dismounting maintenance and change.
Claims (7)
1. pipeline telescopic cover sealing configuration; First pipeline (1) and second pipeline (2) that comprise mutual butt joint; Outside first pipeline (1) and second pipeline (2), be movably installed with sleeve (3); Be respectively arranged with first gland (4) and second gland (5) at the two ends of sleeve (3); Said first gland (4) is fixedly set in outside first pipeline (1); Second gland (5) is fixedly set in outside second pipeline (2); It is characterized in that: between first gland (4) and sleeve (3), be disposed in order first y-type seal ring (6) and the first V-type elastic washer (7), the said first V-type elastic washer (7) be engaged in the Y type mouth (10) of first y-type seal ring (6) and the Y type mouth (10) of the V-type mouth (11) of the first V-type elastic washer (7) and first y-type seal ring (6) all towards sleeve (3), the lip limit of first y-type seal ring (6) is sealed and matched between the inwall of the outer wall of first pipeline (1) and sleeve (3); Second y-type seal ring (8) and the second V-type elastic washer (9) between second gland (5) and sleeve (3), have been disposed in order; The said second V-type elastic washer (9) be engaged in the Y type mouth (12) of second y-type seal ring (8) and the Y type mouth (12) of the V-type mouth (13) of the second V-type elastic washer (9) and second y-type seal ring (8) all towards sleeve (3), the lip limit of second y-type seal ring (8) is sealed and matched between the inwall of the outer wall of second pipeline (2) and sleeve (3).
2. pipeline telescopic cover sealing configuration as claimed in claim 1; It is characterized in that: between the first V-type elastic washer (7) and first gland (4), be provided with the first tension adjusting element; The said first tension adjusting element is connected on first gland (4) pass the Y type mouth (10), first y-type seal ring (6) of the first V-type elastic washer (7), first y-type seal ring (6) from the V-type mouth (11) of the first V-type elastic washer (7) after; The v-angle of the first V-type elastic washer (7) (α 1) is greater than the Y type angle (β 1) of first y-type seal ring (6); And on the tension direction of the first tension adjusting element, has space D 1 between the first V-type elastic washer (7) and first y-type seal ring (6); Between the second V-type elastic washer (9) and second gland (5), be provided with the second tension adjusting element; The said second tension adjusting element is connected on second gland (5) pass the Y type mouth (12), second y-type seal ring (8) of the second V-type elastic washer (9), second y-type seal ring (8) from the V-type mouth (13) of the second V-type elastic washer (9) after; The v-angle of the second V-type elastic washer (9) (α 2) is greater than the Y type angle (β 2) of second y-type seal ring (8); And on the tension direction of the second tension adjusting element, has space D 2 between the second V-type elastic washer (9) and second y-type seal ring (8).
3. pipeline telescopic cover sealing configuration as claimed in claim 2; It is characterized in that: the said first tension adjusting element is first attachment bolt (14), and first gland (4), first y-type seal ring (6), the first V-type elastic washer (7) are arranged sequentially between the outer end nut (16) and interior end nut (20) of first attachment bolt (14); The said second tension adjusting element is second attachment bolt (15), and second gland (5), second y-type seal ring (8), the second V-type elastic washer (9) are arranged sequentially between the outer end nut (18) and interior end nut (21) of second attachment bolt (15).
4. pipeline telescopic cover sealing configuration as claimed in claim 3; It is characterized in that: between first attachment bolt (14) and the first V-type elastic washer (7), be provided with an O RunddichtringO (24), between second attachment bolt (15) and the second V-type elastic washer (9), be provided with the 2nd O RunddichtringO (25).
5. pipeline telescopic cover sealing configuration as claimed in claim 4 is characterized in that: between the outer end nut (16) of first attachment bolt (14) and first gland (4), be provided with first resilient compressible member (17); Between the outer end nut (18) of second attachment bolt (15) and second gland (5), be provided with second resilient compressible member (19).
6. according to any described pipeline telescopic cover of claim sealing configuration in the claim 1 to 5; It is characterized in that: said first y-type seal ring (6), second y-type seal ring (8) adopt nitrile rubber or butyl rubber to make, and the said first V-type elastic washer (7), the second V-type elastic washer (9) adopt stainless steel material to make.
7. pipeline telescopic cover sealing configuration as claimed in claim 6 is characterized in that: said first gland (4) is fixedly set in outside first pipeline (1) through a plurality of first Cock screws (22); Said second gland (5) is fixedly set in outside second pipeline (2) through a plurality of second Cock screws (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110279616 CN102506252B (en) | 2011-09-20 | 2011-09-20 | Pipeline extension sleeve sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110279616 CN102506252B (en) | 2011-09-20 | 2011-09-20 | Pipeline extension sleeve sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102506252A true CN102506252A (en) | 2012-06-20 |
| CN102506252B CN102506252B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110279616 Expired - Fee Related CN102506252B (en) | 2011-09-20 | 2011-09-20 | Pipeline extension sleeve sealing structure |
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| Country | Link |
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| CN (1) | CN102506252B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720129A (en) * | 2020-05-28 | 2020-09-29 | 北京城建中南土木工程集团有限公司 | Shield steel sleeve sealing device and mounting method thereof |
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| US4018461A (en) * | 1974-10-22 | 1977-04-19 | Everitube | Sealed joint having a socket |
| JPH0464473A (en) * | 1990-07-05 | 1992-02-28 | Matsushita Electric Ind Co Ltd | Printing press with eraser |
| CN2540543Y (en) * | 2002-05-27 | 2003-03-19 | 陈贞华 | Pipe fitting with spigot-and-socket quick connector |
| JP2008128279A (en) * | 2006-11-17 | 2008-06-05 | Hitachi Engineering & Services Co Ltd | Expansion union joint structure and fluid transfer pipe system using the same |
| CN101684875A (en) * | 2008-09-24 | 2010-03-31 | 卡特彼勒公司 | Connecting assembly, assembling method thereof and movable machine comprising same |
| JP2010112436A (en) * | 2008-11-05 | 2010-05-20 | Sayama Seisakusho:Kk | Expansion joint of multi-vessel type water storage tank |
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2011
- 2011-09-20 CN CN 201110279616 patent/CN102506252B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4018461A (en) * | 1974-10-22 | 1977-04-19 | Everitube | Sealed joint having a socket |
| JPH0464473A (en) * | 1990-07-05 | 1992-02-28 | Matsushita Electric Ind Co Ltd | Printing press with eraser |
| CN2540543Y (en) * | 2002-05-27 | 2003-03-19 | 陈贞华 | Pipe fitting with spigot-and-socket quick connector |
| JP2008128279A (en) * | 2006-11-17 | 2008-06-05 | Hitachi Engineering & Services Co Ltd | Expansion union joint structure and fluid transfer pipe system using the same |
| CN101684875A (en) * | 2008-09-24 | 2010-03-31 | 卡特彼勒公司 | Connecting assembly, assembling method thereof and movable machine comprising same |
| JP2010112436A (en) * | 2008-11-05 | 2010-05-20 | Sayama Seisakusho:Kk | Expansion joint of multi-vessel type water storage tank |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720129A (en) * | 2020-05-28 | 2020-09-29 | 北京城建中南土木工程集团有限公司 | Shield steel sleeve sealing device and mounting method thereof |
| CN111720129B (en) * | 2020-05-28 | 2021-09-03 | 北京城建中南土木工程集团有限公司 | Shield steel sleeve sealing device and mounting method thereof |
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| Publication number | Publication date |
|---|---|
| CN102506252B (en) | 2013-04-10 |
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