CN213510922U

CN213510922U - Filtering device for carburetor

Info

Publication number: CN213510922U
Application number: CN202021766784.6U
Authority: CN
Inventors: 林炳光
Original assignee: Fujian Fulin Carburetor Co ltd
Current assignee: Fujian Fulin Carburetor Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-06-22
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a filtering device for a carburetor, which comprises a float chamber, a float, a needle valve mechanism, a spray pipe, a choke, an oil discharge pipe, a filtering mechanism, an oil return pipe and an oil pump; an oil discharge hole is formed in the bottom of the float chamber, one end of an oil discharge pipe is connected with the oil discharge hole, and the other end of the oil discharge pipe is connected with the filtering mechanism; the floater is positioned in the floater chamber, a needle valve mechanism is fixed on the floater, the needle valve mechanism is communicated with the filtering mechanism through an oil return pipe, and an oil pump is arranged on the oil return pipe and used for pumping oil in the filtering mechanism into the floater chamber; two ends of the spray pipe are respectively communicated with the floater chamber and the throat pipe; the filtering mechanism comprises a filtering box, a filtering disc, a piston and a pushing assembly, an oil outlet is formed at the bottom of the filtering box, one end of an oil return pipe is connected to the oil outlet, and the other end of the oil return pipe is connected with the needle valve mechanism; the other end of the oil discharge pipe penetrates through the side wall of the filter box and is bent to extend upwards along the height direction of the filter box; the filter disc is fixed on the side wall of the oil discharge pipe; the pushing assembly is fixed at the top of the filter box and fixedly connected with the piston.

Description

Filtering device for carburetor

Technical Field

The utility model relates to a carburetor technical field, more specifically the utility model relates to a filter equipment for carburetor that says so.

Background

The carburetor is a mechanical device which mixes gasoline and air in a certain proportion under the action of vacuum generated by the operation of an engine. The carburetor is a precise mechanical device, realizes the atomization of gasoline by utilizing the kinetic energy of the sucked air flow, and the important action of the carburetor on the engine can be called as the heart of the engine. The carburetor can automatically match corresponding concentration according to different working state requirements of the engine and output corresponding amount of mixed gas. The existing carburetor consists of an upper part, a middle part and a lower part, wherein the upper part is provided with an air inlet and a float chamber, the middle part is provided with a throat pipe, a metering orifice and a spray pipe, and the lower part is provided with a throttle valve and the like. The float chamber is a rectangular container for storing gasoline from gasoline pump, and a float is set in the container and can utilize the height of float surface (oil level) to control oil-feeding quantity. The oil inlet at one end of the spray pipe at the middle part is communicated with the measuring hole of the float chamber, and the oil outlet at the other end is arranged at the throat part of the throat pipe.

However, the existing carburetor has certain disadvantages when in use, the existing engine needs to discharge oil in the float chamber when not in use for a long time, the phenomenon that the oil is accumulated in the float chamber for a long time to cause the evaporation of the oil to leave colloidal substances to cause the blockage of a metering orifice of the carburetor, once the metering orifice is blocked, the oil injection of a spray pipe is uneven or even impossible to inject oil is caused, the engine cannot be started, or the acceleration is powerless after the engine is started, the use is inconvenient, and when the existing carburetor is in use, the discharged oil is often directly discharged, so that the waste of the oil which can be used in part of the engine is caused.

Therefore, it is an urgent need in the art to provide a filter device for a carburetor, which has a simple structure, a reasonable design, and a convenient use, and can filter and recycle oil discharged from a float chamber to avoid waste of the oil.

Disclosure of Invention

In view of this, in order to solve among the prior art carburetor easily receive the gauge hole to block up and lead to using inconvenient and to the extravagant serious scheduling technical problem of fluid, the utility model provides a simple structure, reasonable in design, convenient to use can filter recycle to the fluid that the float chamber was emitted, avoids the extravagant filter equipment who is used for the carburetor of fluid.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a filtering device for a carburetor comprises a float chamber, a float, a needle valve mechanism, a spray pipe, a throat pipe, an oil discharge pipe, a filtering mechanism, an oil return pipe and an oil pump; an oil discharge hole is formed in the bottom of the floater chamber, one end of the oil discharge pipe is connected with the oil discharge hole, and the other end of the oil discharge pipe is connected with the filtering mechanism; the float is positioned in the float chamber, the needle valve mechanism is fixed on the float and is communicated with the filtering mechanism by utilizing the oil return pipe, and the oil pump is arranged on the oil return pipe and is used for pumping oil in the filtering mechanism into the float chamber; two ends of the spray pipe are respectively communicated with the floater chamber and the throat pipe;

the filtering mechanism comprises a filtering box, a filtering disc, a piston and a pushing assembly, the filtering box is of a hollow cylindrical structure with two closed ends, the top end face of the filtering box is positioned below the bottom end face of the floater chamber, the middle part of the bottom of the filtering box is downwards sunken and forms an oil outlet, one end of the oil return pipe is connected to the oil outlet, and the other end of the oil return pipe is connected with the needle valve mechanism; the other end of the oil discharge pipe penetrates through the side wall of the filter box and is bent upwards to be arranged along the height direction of the filter box; the filter disc is fixedly sleeved on the side wall of the oil discharge pipe and is coaxially arranged with the oil discharge pipe, the edge of the filter disc is fittingly installed on the inner wall of the filter box, a filter hole is formed in the filter disc, and a filter screen is installed at the filter hole; the pushing assembly is fixed at the top of the filter box and fixedly connected with the piston and used for pushing the piston to slide up and down along the inner wall of the filter box, and the piston is positioned above the oil discharge pipe and the filter disc.

According to the technical scheme, compare with prior art scheme, the utility model provides a filter equipment for carburetor, can realize being connected between float chamber and the choke through utilizing the spray tube, can discharge the interior fluid of float chamber to the rose box in through utilizing the oil extraction pipe, and filter fluid via the filter disc, can strengthen the filtration dynamics to fluid in the rose box through utilizing push assembly and piston, improve filtration efficiency, avoid the condition of fluid jam to take place, the setting of filtration pore and filter screen on the filter disc, the operating personnel of being convenient for regularly washs the change to the filter disc, guarantee filter mechanism's normal work, utilize back oil pipe and oil pump can be carried to the float chamber once more via the filterable fluid of filter disc, realize the filtration recycle to fluid, avoid the waste of fluid. The utility model discloses a filter equipment for carburetor, simple structure not only, reasonable in design, convenient to use can filter recycle effectively to the fluid that the float chamber was emitted moreover, and filtration efficiency is high, has avoided the waste of fluid, has good market perspective.

Further, the floater is more than two, more than two the floater is evenly arranged inside the floater chamber, and more than two the floater top is all fixed with the needle valve mechanism.

The technical scheme has the beneficial effects that a certain amount of oil liquid can be ensured in the float chamber, so that the normal working operation of the carburetor is ensured.

Further, the float is two, needle valve mechanism includes first needle valve mechanism and second needle valve mechanism, first needle valve mechanism with second needle valve mechanism corresponds respectively and is fixed in two the float top, just first needle valve mechanism with it connects to return the oil pipe other end, second needle valve mechanism utilizes the connecting pipe to be connected with outside oil feed mechanism.

The beneficial effects that adopt above-mentioned technical scheme to produce are that, can carry out recycle again to the fluid after filtering, avoid the waste of fluid, effectively save the cost, reduce the energy consumption.

Further, first needle valve mechanism with second needle valve mechanism all includes needle valve seat and needle valve, the needle valve seat is fixed in the float top, the needle valve is vertical to be arranged, just needle valve bottom with needle valve seat fixed connection.

The technical scheme has the beneficial effects that the input amount of oil can be effectively controlled, and a certain oil level height is kept in the float chamber.

Furthermore, more than one filter disc is provided, and the more than one filter disc is evenly arranged along the axial direction of the oil discharge pipe at intervals.

The beneficial effect who adopts above-mentioned technical scheme to produce is, can effectively filter particulate impurity and air bubble in the fluid, improves the filtration efficiency to fluid.

Furthermore, each filter disc is provided with a plurality of filter holes, and the filter holes are uniformly distributed on the filter disc.

The beneficial effect that adopts above-mentioned technical scheme to produce is, has further improved the filtration efficiency to fluid.

Furthermore, the filter screen is made of metal.

Optionally, the filter screen is made of stainless steel.

The beneficial effect who adopts above-mentioned technical scheme to produce is for this filter disc's structural stability is strong, and is durable, and life is longer and convenient the washing.

Furthermore, the pushing assembly comprises a hydraulic cylinder and a hydraulic rod, the hydraulic cylinder is fixed to the outer wall of the top of the filter box, one end of the hydraulic rod is fixed to the bottom of the hydraulic cylinder, the other end of the hydraulic rod penetrates through the top wall of the filter box and extends out of the interior of the filter box, and the piston is fixedly connected to the other end of the hydraulic rod and used for pushing the piston to slide along the inner wall of the filter box up and down.

The beneficial effects that adopt above-mentioned technical scheme to produce are for this filter equipment structural design is reasonable, and convenient to use easily controls and filtration efficiency is high, and the filter effect is good.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic view of a filter assembly for a carburetor according to the present invention;

fig. 2 is a schematic structural diagram of a filter disc in a filter device for a carburetor according to the present invention.

Wherein: 1-float chamber, 11-oil drain hole, 2-float, 3-spray pipe, 4-throat, 5-oil drain pipe, 6-filter mechanism, 61-filter box, 62-filter disc, 63-piston, 64-pushing assembly, 641-hydraulic cylinder, 642-hydraulic rod, 65-oil drain hole, 66-filter hole, 67-filter screen, 7-oil return pipe, 8-oil pump, 9-first needle valve mechanism, 10-second needle valve mechanism, 100-needle valve seat and 200-needle valve.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The utility model discloses a filtering device for a carburetor, which comprises a float chamber 1, a float 2, a needle valve mechanism, a spray pipe 3, a choke 4, an oil discharge pipe 5, a filtering mechanism 6, an oil return pipe 7 and an oil pump 8; an oil discharge hole 11 is formed in the bottom of the float chamber 1, one end of an oil discharge pipe 5 is connected with the oil discharge hole 11, and the other end of the oil discharge pipe is connected with the filtering mechanism 6; the floater 2 is positioned in the floater chamber 1, a needle valve mechanism is fixed on the floater 2, the needle valve mechanism is communicated with the filtering mechanism 6 through an oil return pipe 7, and an oil pump 8 is arranged on the oil return pipe 7 and used for pumping oil in the filtering mechanism 6 into the floater chamber 1; two ends of the spray pipe 3 are respectively communicated with the floater chamber 1 and the throat pipe 4;

the filtering mechanism 6 comprises a filtering box 61, a filtering disc 62, a piston 63 and a pushing assembly 64, the filtering box 61 is a hollow cylindrical structure with two closed ends, the top end face of the filtering box 61 is positioned below the bottom end face of the float chamber 1, the middle part of the bottom of the filtering box 61 is downwards sunken and is provided with an oil outlet 65, one end of the oil return pipe 7 is connected to the oil outlet 65, and the other end of the oil return pipe is connected with the needle valve mechanism; the other end of the oil discharge pipe 5 penetrates through the side wall of the filter box 61 and is bent upwards and arranged along the height direction of the filter box 61; the filter disc 62 is fixedly sleeved on the side wall of the oil discharge pipe 5 and is coaxially arranged with the oil discharge pipe 5, the edge of the filter disc 62 is fittingly installed on the inner wall of the filter box 61, the filter disc 62 is provided with filter holes 66, and filter screens 67 are installed at the positions of the filter holes 66; the pushing assembly 64 is fixed on the top of the filtering tank 61, and the pushing assembly 64 is fixedly connected with the piston 63, and is used for pushing the piston 63 to slide up and down along the inner wall of the filtering tank 61, and the piston 63 is located above the oil drain pipe 5 and the filtering disc 62.

According to the utility model discloses an optional embodiment, float 2 is two, and two floats 2 are evenly arranged inside float chamber 1, and two 2 tops of float all are fixed with the needle valve mechanism to can guarantee to have a certain amount of fluid in the float chamber, and then guarantee the normal work operation of carburetor.

According to the utility model discloses an optional embodiment, needle valve mechanism includes first needle valve mechanism 9 and second needle valve mechanism 10, first needle valve mechanism 9 and second needle valve mechanism 10 correspond respectively and are fixed in two floats 2 tops, and first needle valve mechanism 9 is connected with the oil return pipe 7 other end, second needle valve mechanism 10 utilizes the connecting pipe to be connected with outside oil feed mechanism to can carry out recycle again to the fluid after filtering, the waste of fluid has been avoided, the cost is effectively saved, the energy consumption is reduced.

According to the utility model discloses an optional embodiment, first needle valve mechanism 9 and second needle valve mechanism 10 all include needle valve seat 100 and needle valve 200, and needle valve seat 100 is fixed in 2 tops of float, and needle valve 200 is vertical to be arranged, and needle valve 200 bottom and needle valve seat 100 fixed connection to can the input of effective control fluid and make the indoor certain oil level height that keeps of float.

According to the utility model discloses an optional embodiment, filter disc 62 is two, and two filter discs 62 are arranged along 5 even intervals of oil extraction pipe axial to can effectively filter particulate impurity and the air bubble in the fluid, improve the filtration efficiency to the fluid.

According to the utility model discloses an optional embodiment, a plurality of filtration holes 66 have all been seted up on every filter disc 62, and a plurality of filtration holes 66 evenly arrange on filter disc 62 to the filtration efficiency to fluid has further been improved.

According to the utility model discloses an optional embodiment, the material that filter screen 67 adopted is stainless steel to make this filter disc's structural stability strong, durable, life is longer and convenient the washing.

According to the utility model discloses an optional embodiment, promote subassembly 64 including pneumatic cylinder 641 and hydraulic stem 642, pneumatic cylinder 641 is fixed in on the filter box 61 pushes up the outer wall, hydraulic stem 642 one end is fixed in the bottom of pneumatic cylinder 641, the other end passes filter box 61 roof and stretches out to filter box 61 is inside, and hydraulic stem 642 other end fixedly connected with piston 63 for promote piston 63 and slide from top to bottom along filter box 61 inner wall, thereby make this filter equipment structural design reasonable, high durability and convenient use, easily control and filtration efficiency are high, the filter effect is good.

The utility model discloses a filter equipment for carburetor, can realize being connected between floater room and the choke through utilizing the spray tube, can discharge the interior fluid of floater room to the rose box in through utilizing the oil extraction pipe, and filter fluid via the rose disk, can strengthen the filtration dynamics to fluid in the rose box through utilizing promotion subassembly and piston, improve filtration efficiency, avoid the condition of fluid jam to take place, the setting of filtration pore and filter screen is crossed on the rose disk, the operating personnel of being convenient for regularly washs the change to the rose disk, guarantee filter mechanism's normal work, utilize back oil pipe and oil pump can be with in carrying to the floater room again via the filterable fluid of rose disk, realize the filtration recycle to fluid, avoid the waste of fluid. The filtering device is simple in structure, reasonable in design, convenient to use, capable of effectively filtering and recycling oil discharged from the float chamber, high in filtering efficiency, capable of avoiding waste of the oil and good in market application prospect.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A filtering device for a carburetor is characterized by comprising a float chamber (1), a float (2), a needle valve mechanism, a spray pipe (3), a throat pipe (4), an oil discharge pipe (5), a filtering mechanism (6), an oil return pipe (7) and an oil pump (8); an oil discharge hole (11) is formed in the bottom of the floater chamber (1), one end of the oil discharge pipe (5) is connected with the oil discharge hole (11), and the other end of the oil discharge pipe is connected with the filtering mechanism (6); the floater (2) is positioned in the floater chamber (1), the needle valve mechanism is fixed on the floater (2), the needle valve mechanism is communicated with the filtering mechanism (6) through the oil return pipe (7), and the oil pump (8) is arranged on the oil return pipe (7) and used for pumping oil in the filtering mechanism (6) into the floater chamber (1); two ends of the spray pipe (3) are respectively communicated with the floater chamber (1) and the throat pipe (4);

the filtering mechanism (6) comprises a filtering box (61), a filtering disc (62), a piston (63) and a pushing assembly (64), the filtering box (61) is of a hollow cylindrical structure with two closed ends, the top end face of the filtering box (61) is located below the bottom end face of the float chamber (1), the middle of the bottom of the filtering box (61) is downwards sunken and is provided with an oil outlet hole (65), one end of an oil return pipe (7) is connected to the oil outlet hole (65), and the other end of the oil return pipe is connected with the needle valve mechanism; the other end of the oil discharge pipe (5) penetrates through the side wall of the filter box (61) and is bent upwards to be arranged along the height direction of the filter box (61); the filter disc (62) is fixedly sleeved on the side wall of the oil discharge pipe (5) and is coaxially arranged with the oil discharge pipe (5), the edge of the filter disc (62) is installed on the inner wall of the filter box (61) in an adaptive mode, a filter hole (66) is formed in the filter disc (62), and a filter screen (67) is installed at the position of the filter hole (66); the pushing assembly (64) is fixed to the top of the filter box (61), the pushing assembly (64) is fixedly connected with the piston (63) and used for pushing the piston (63) to slide up and down along the inner wall of the filter box (61), and the piston (63) is located above the oil discharge pipe (5) and the filter disc (62).

2. A filter device for a carburetor according to claim 1, wherein said float (2) is two or more, said two or more floats (2) are uniformly arranged inside said float chamber (1), and said needle valve mechanism is fixed to the top of each of said two or more floats (2).

3. A filter unit for a carburetor according to claim 2, wherein the number of the floats (2) is two, the needle valve mechanism includes a first needle valve mechanism (9) and a second needle valve mechanism (10), the first needle valve mechanism (9) and the second needle valve mechanism (10) are respectively fixed on the tops of the two floats (2), and the first needle valve mechanism (9) is connected with the other end of the oil return pipe (7), and the second needle valve mechanism (10) is connected with an external oil feeding mechanism by a connecting pipe.

4. A filter arrangement for a carburettor according to claim 3 wherein the first needle valve mechanism (9) and the second needle valve mechanism (10) each comprise a needle valve seat (100) and a needle valve (200), the needle valve seat (100) being fixed to the top of the float (2), the needle valve (200) being arranged vertically and the bottom of the needle valve (200) being fixedly connected to the needle valve seat (100).

5. A filter arrangement for a carburettor according to claim 1 wherein the filter disc (62) is one or more and the filter discs (62) are evenly spaced axially along the oil drain pipe (5).

6. A filter arrangement for a carburettor according to claim 5 wherein each filter disc (62) has a plurality of filter apertures (66) formed therein and the filter apertures (66) are arranged evenly across the filter disc (62).

7. A filter arrangement for a carburettor as claimed in claim 1 wherein the screen (67) is of metal.

8. A filter arrangement for a carburettor according to claim 1 wherein the urging means (64) comprises a cylinder (641) and a rod (642), the cylinder (641) being fixed to the outer wall of the top of the filter housing (61), the rod (642) having one end fixed to the bottom of the cylinder (641) and the other end extending through the top wall of the filter housing (61) into the filter housing (61), and the rod (642) having the other end fixedly connected to the piston (63) for urging the piston (63) to slide up and down along the inner wall of the filter housing (61).