CN219774751U - Oil pump valve with good sealing performance - Google Patents
Oil pump valve with good sealing performance Download PDFInfo
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- CN219774751U CN219774751U CN202320348833.1U CN202320348833U CN219774751U CN 219774751 U CN219774751 U CN 219774751U CN 202320348833 U CN202320348833 U CN 202320348833U CN 219774751 U CN219774751 U CN 219774751U
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- oil pump
- pump valve
- plunger
- inner cavity
- sealing gasket
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- 238000007789 sealing Methods 0.000 title claims abstract description 71
- 238000009434 installation Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses an oil pump valve with good sealing performance, which belongs to the technical field of oil pump valves and comprises an oil pump valve shell, wherein the interior of the oil pump valve shell is divided into a first inner cavity and a second inner cavity, one end of the interior of the second inner cavity is movably provided with a plunger, one side of the plunger is provided with a sealing gasket, one end of the bottom of the second inner cavity is provided with a pressure relief interface, the pressure relief interface corresponds to the plunger, the interior of the first inner cavity is movably provided with a jacking block, one side of the jacking block, which is opposite to the plunger, is welded with a uniform stress structure, a pressure limiting spring is arranged between the jacking block and the opposite side of the plunger, and the opening of the first inner cavity is fixedly provided with a cover plate; according to the technical scheme, the sealing gasket is arranged at the front end of the plunger, so that the sealing gasket keeps a normal sealing effect under the normal pressure condition, when pressure relief is needed, the sealing gasket is pushed by high pressure to extrude the sealing gasket to a circle, and the higher the pressure is, the more closely contacted with the inner wall of the second inner cavity, so that the better the sealing performance is.
Description
Technical Field
The utility model relates to the technical field of oil pump valves, in particular to an oil pump valve with good sealing performance.
Background
In an automobile gearbox, an oil pump valve is an important pressure relief component, called a pressure relief valve, which is mainly used for timely relieving pressure according to pressure change in the gearbox during operation, so that gear shifting acceleration smoothness is ensured, wherein the gear box pressure relief structure disclosed by application number 201621459010.2 has the advantages that in the prior art, although a steel ball has an oil blocking effect, the structure is complex, the oil blocking is completed in a vent plug, various defects of poor oil blocking effect are overcome, further searching discovers that the engine gearbox pressure relief device disclosed by application number 201821081275.2 is arranged through a specific technical structure, the oil pump valve with a similar structure is practically used for solving the technical defects that in the prior art, a pin is inserted into the vent hole, a gap is reserved between the pin and the vent hole, and gas can be introduced or discharged, but the matching structure of the pin and the vent hole has an unsatisfactory oil blocking effect, when jolt is large, or a mini-tiller is required to incline when a cutter is replaced, oil is often leaked out, and the technical defects such as environmental pollution on the ground are caused, and the like are overcome, and in the oil pump valve with a similar structure in actual use, such as: the oil pump valve is at the car gearbox use plunger usually adopts the sealing washer to realize sealed effect, and the sealing washer is flat structure in the same row, and its sealing performance is not fine, is receiving under the high pressure promotion and is very easy to appear leaking gas phenomenon to influence the normal pressure release work of oil pump valve, simultaneously, the flexible kicking block of regulating spring in the oil pump valve is usually all adopted the screw thread to twist the mode, in the pressure release in-process, the spring drives the kicking block very easily under the flexible condition repeatedly and appears the rotation to lead to the kicking block to appear the displacement phenomenon, thereby lead to the pressure release value of device to appear the deviation, influence the performance of device. In view of this, we propose an oil pump valve with good tightness.
Disclosure of Invention
1. Technical problem to be solved
The present utility model aims to provide an oil pump valve with good sealing performance, so as to solve the problems in the prior art.
2. Technical proposal
The oil pump valve with good sealing performance comprises an oil pump valve shell, wherein the inner part of the oil pump valve shell is provided with a first inner cavity and a second inner cavity, one end of the inner part of the second inner cavity is movably provided with a plunger, one side of the plunger is provided with a sealing gasket, one end of the bottom of the second inner cavity is provided with a pressure relief interface, the pressure relief interface corresponds to the plunger, the inner part of the first inner cavity is movably provided with a jacking block, one side of the jacking block, which is opposite to the plunger, is welded with a uniform stress structure, a pressure limiting spring is arranged between the jacking block and the opposite side of the plunger, the opening part of the first inner cavity is fixedly provided with a cover plate, one end of the cover plate, which is opposite to the oil pump valve shell, is fixedly provided with an electric hydraulic push rod, and one end of the electric hydraulic push rod, which extends to the inner part of the first inner cavity, is fixedly connected with the uniform stress structure;
the side of the sealing gasket, which is opposite to the plunger, is arc-shaped and convex.
As an alternative of the technical scheme of the utility model, a bump is arranged on one side of the plunger, which faces the sealing gasket, and a clamping groove is arranged on one circumference of the bump.
As an alternative scheme of the technical scheme of the utility model, a socket is arranged on one side of the sealing gasket facing the plunger, and a collar is arranged on the periphery of the inside of the socket.
As an alternative scheme of the technical scheme of the utility model, the opposite sides of the top block and the plunger are welded with the limiting sleeves, and the two ends of the pressure limiting spring are respectively positioned in the corresponding limiting sleeves.
As an alternative of the technical scheme of the utility model, the uniform stress structure comprises a circular plate and connecting rods, four groups of inclined connecting rods are welded on one circle of the circular plate, the four groups of connecting rods on one circle of the circular plate are welded and fixed with one circle of the top block, the connecting rods are welded on the center of the circular plate, which faces one side of the top block, of the circular plate, the connecting rods are welded and fixed on the center of the top block, and one side of the circular plate, which faces away from the top block, is fixedly connected with one end of the electric hydraulic push rod through bolts.
As an alternative scheme of the technical scheme of the utility model, one end of the oil pump valve shell, which faces the cover plate, is provided with a spread edge, at least two groups of equidistant mounting screw holes are formed in the periphery of the spread edge, and at least two groups of equidistant mounting bolts are mounted in the periphery of the cover plate.
As an alternative scheme of the technical scheme of the utility model, a sealing groove is arranged at the periphery of an opening of the oil pump valve shell, which faces one end of the cover plate, and a sealing ring symmetrical to the sealing groove is arranged at one side of the cover plate, which faces the oil pump valve shell.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages that:
1. according to the technical scheme, the sealing gasket arranged at the front end of the plunger is provided with the front end in the arc-shaped bulge shape, the sealing gasket keeps a normal sealing effect under the normal pressure condition, when pressure relief is needed, the sealing gasket is pushed by high pressure and is influenced by the arc-shaped bulge side of the sealing gasket, the sealing gasket is extruded to one circle, the greater the pressure is, the greater the degree of extrusion of the sealing gasket outwards is, namely the more tightly the sealing gasket contacts with the inner wall of the second inner cavity, so that the sealing performance of the sealing gasket and the second inner cavity can be greatly improved.
2. According to the technical scheme, the pushing displacement of the jacking block is realized through the arranged cover plate and the electric hydraulic push rod by the electric hydraulic push rod, and a traditional thread screwing mode is replaced, so that the jacking block is fixedly jacked by the electric hydraulic push rod in the repeated expansion and contraction process of the pressure limiting spring, the displacement phenomenon is avoided, and the pressure limiting stability of the pressure limiting spring is ensured.
Drawings
FIG. 1 is a cross-sectional structural view of an oil pump valve with good sealing properties disclosed in an embodiment of the present utility model;
FIG. 2 is a schematic structural diagram of a uniform stress structure in an oil pump valve with good sealing performance, which is disclosed in the embodiment of the utility model;
FIG. 3 is an enlarged schematic view of the portion A of the oil pump valve with good tightness disclosed in the embodiment of the utility model;
fig. 4 is an enlarged schematic view of a B part in the oil pump valve with good sealing property disclosed in the embodiment of the present utility model.
The reference numerals in the figures illustrate: 1. an oil pump valve housing; 101. a first lumen; 102. a second lumen; 103. edge expansion; 104. installing a screw hole; 105. sealing grooves; 2. a top block; 3. a uniform stress structure; 301. a circular plate; 302. a connecting rod; 4. a cover plate; 401. installing a bolt; 402. a seal ring; 5. an electro-hydraulic push rod; 6. a pressure limiting spring; 7. a plunger; 701. a bump; 702. a clamping groove; 8. a sealing gasket; 801. a socket; 802. a collar; 9. a pressure relief interface; 10. and a limit sleeve.
Detailed Description
The utility model provides a technical scheme that:
as shown in fig. 1, 2, 3 and 4, the oil pump valve with good sealing performance comprises an oil pump valve housing 1, the oil pump valve housing 1 is in a T shape, the inner part of the oil pump valve housing 1 is divided into a first inner cavity 101 and a second inner cavity 102, the first inner cavity 101 and the second inner cavity 102 are round, a plunger 7 is movably arranged at one end of the inner part of the second inner cavity 102, when the pressure is released, the plunger 7 can be pushed by pressure to displace backwards in the second inner cavity 102, one side of the plunger 7 is provided with a sealing gasket 8, the sealing gasket 8 ensures the sealing performance of the plunger 7 and the second inner cavity 102, one side of the plunger 7 facing the sealing gasket 8 is provided with a bump 701, one circle of the bump 701 is provided with a clamping groove 702, one circle of the sealing gasket 8 facing the plunger 7 is provided with a socket 801, one circle of the inner part of the socket 801 is provided with a clamping ring 802, when the sealing gasket 8 is installed, the socket 801 of the sealing gasket 8 is inserted into the bump 701 of the plunger 7, at this time, the collar 802 is clamped into the clamping groove 702 so as to fixedly mount the sealing gasket 8, at this time, one circle of the sealing gasket 8 is tightly contacted with the inner wall of the second inner cavity 102, one end of the bottom of the second inner cavity 102 is provided with the pressure relief interface 9, the pressure relief interface 9 corresponds to the plunger 7, when the plunger 7 moves backwards in the second inner cavity 102, the pressure relief interface 9 is exposed, then the pressure is discharged from the pressure relief interface 9, the pressure relief effect is achieved, the top block 2 is movably mounted in the first inner cavity 101, the expansion degree of the pressure limiting spring 6 can be adjusted by the displacement of the top block 2, the pressure relief value is adjusted, one side of the top block 2, which is opposite to the plunger 7, is welded with the uniform stress structure 3, the uniform stress structure 3 comprises a circular plate 301 and connecting rods 302, four groups of inclined connecting rods 302 are welded on one circle of the circular plate 301, and four groups of connecting rods 302 are welded and fixed on one circle of the top block 2, the round plate 301 is welded with a connecting rod 302 towards the center of one side of the top block 2, the connecting rod 302 at the center of one side of the round plate 301 is welded and fixed with the center of the top block 2, one side of the round plate 301, which is opposite to the top block 2, is fixedly connected with one end of the electric hydraulic push rod 5 through a bolt, the pushing force exerted on the round plate 301 by the electric hydraulic push rod 5 is uniformly transmitted to the top block 2 through five groups of connecting rods 302, so that the top block 2 can be stably displaced, a pressure limiting spring 6 is arranged between the opposite sides of the top block 2 and the plunger 7, when the pressure born by the end of the plunger 7 exceeds the pressure born by the pressure limiting spring 6, the pressure is released at the moment, the plunger 7 can move backwards, the pressure limiting spring 6 is in a compressed state, when the pressure is discharged from the pressure releasing interface 9, the pressure is reduced to a certain degree, the plunger 7 is automatically pushed forwards by the pressure limiting spring 6, the pressure cannot pass through the pressure releasing interface 9, the opposite sides of the top block 2 and the plunger 7 are uniformly welded with a limiting sleeve 10, two ends of the pressure limiting spring 6 are respectively positioned inside the corresponding limiting sleeve 10, the limiting sleeve 10, and the pressure limiting sleeve 10 ensures that the compression between the top block 2 and the plunger 7 can be stably stretched and contracted,
the oil pump valve comprises a cover plate 4 fixedly installed at the opening of a first inner cavity 101, an edge 103 is arranged at one end of an oil pump valve shell 1, which faces the cover plate 4, at least two groups of equidistant installation screw holes 104 are formed in the periphery of the edge 103, at least two groups of equidistant installation bolts 401 are installed at the periphery of the cover plate 4, a sealing groove 105 is formed in the periphery of the opening of the oil pump valve shell 1, a sealing ring 402 symmetrical to the sealing groove 105 is arranged at one side of the cover plate 4, which faces the oil pump valve shell 1, when the cover plate 4 is installed, the cover plate 4 is attached to the opening of the oil pump valve shell 1, then the installation bolts 401 are screwed into the corresponding installation screw holes 104, so that the fixed installation of the cover plate 4 is realized, and at the moment, the sealing ring 402 is embedded into the sealing groove 105, the tightness of the cover plate 4 to the opening of the oil pump valve shell 1 is guaranteed, an electric hydraulic push rod 5 is fixedly installed at the center of one side, which faces away from the oil pump valve shell 1, of the electric hydraulic push rod 5 extends to the inner end of the first inner cavity 101, is fixedly connected with a uniform stress structure 3, the electric hydraulic rod 5 can directly drive a top block 2 to move forwards and backwards, the electric push rod 6 is not influenced by the stability of bearing the pressure limiting spring 6;
in this embodiment, when the automobile gearbox oil pump valve is used, personnel can control electric hydraulic push rod 5 to promote kicking block 2 and carry out back-and-forth displacement, adjust pressure limiting spring 6 compression degree, adjust pressure limiting spring 6 promptly and bear the pressure restriction, when pressure in the oil circuit surpassed pressure limiting spring 6 and bear the restriction, carry out the pressure release work this moment, under the promotion of high pressure, plunger 7 can move backward, pressure limiting spring 6 becomes compressed state, pressure release interface 9 can expose this moment, then pressure is discharged from pressure release interface 9, play the pressure release effect, after pressure reduces to a certain extent in the oil circuit, pressure limiting spring 6 is automatic to promote plunger 7 forward, pressure can't pass through pressure release interface 9 this moment, accomplish the pressure release work promptly.
As shown in fig. 1 and 4, the side of the sealing gasket 8 facing away from the plunger 7 is arc-shaped and convex;
in this embodiment, under the condition of normal pressure in the oil way, the sealing gasket 8 keeps the normal sealing effect, when the oil way pressure is ultrahigh, and when pressure release is needed, the sealing gasket 8 is pushed by high pressure, and is influenced by the arc-shaped bulge side of the sealing gasket 8, the sealing gasket 8 can be extruded to a circle, the greater the pressure, the greater the degree of extrusion of the sealing gasket 8 outwards is, namely the more tightly the sealing gasket contacts with the inner wall of the second inner cavity 102, so that the better the sealing performance is, and the sealing performance of the sealing gasket 8 and the second inner cavity 102 can be greatly improved.
Claims (7)
1. Good oil pump valve of leakproofness, including oil pump valve shell (1), its characterized in that: the oil pump valve is characterized in that the inner part of the oil pump valve shell (1) is provided with a first inner cavity (101) and a second inner cavity (102), one end of the inner part of the second inner cavity (102) is movably provided with a plunger (7), one side of the plunger (7) is provided with a sealing gasket (8), one end of the bottom of the second inner cavity (102) is provided with a pressure relief interface (9), the pressure relief interface (9) corresponds to the plunger (7), the inner part of the first inner cavity (101) is movably provided with a jacking block (2), one side of the jacking block (2) opposite to the plunger (7) is welded with a uniform stress structure (3), a pressure limiting spring (6) is arranged between the opposite sides of the jacking block (2) and the plunger (7), a cover plate (4) is fixedly arranged at the opening of the first inner cavity (101), an electric hydraulic push rod (5) is fixedly arranged at the center of one side of the cover plate (4) opposite to the oil pump valve shell (1), and one end of the electric hydraulic push rod (5) extending to the inner part of the first inner cavity (101) is fixedly connected with the uniform stress structure (3);
the side of the sealing gasket (8) facing away from the plunger (7) is arc-shaped and protruding.
2. The well-sealed oil pump valve of claim 1, wherein: a protruding block (701) is arranged on one side, facing the sealing gasket (8), of the plunger (7), and a clamping groove (702) is formed in the periphery of the protruding block (701).
3. The well-sealed oil pump valve of claim 1, wherein: a socket (801) is arranged on one side, facing the plunger (7), of the sealing gasket (8), and a clamping ring (802) is arranged on the periphery of the inside of the socket (801).
4. The well-sealed oil pump valve of claim 1, wherein: limiting sleeves (10) are welded on opposite sides of the top block (2) and the plunger (7), and two ends of the pressure limiting spring (6) are respectively located in the corresponding limiting sleeves (10).
5. The well-sealed oil pump valve of claim 1, wherein: the even atress structure (3) includes plectane (301) and connecting rod (302), the welding of the week of plectane (301) has four sets of connecting rods (302) of slope, and the welding of four sets of connecting rods (302) of plectane (301) week is fixed with the one week of kicking block (2), and the centre department welding of plectane (301) towards kicking block (2) one side has connecting rod (302), and connecting rod (302) of plectane (301) one side centre department and the centre department welding of kicking block (2) are fixed, the one side of plectane (301) dorsad to kicking block (2) is through the one end fixed connection of bolt and electric hydraulic push rod (5).
6. The well-sealed oil pump valve of claim 1, wherein: the oil pump valve housing (1) is equipped with to expand limit (103) towards the one end of apron (4), and the week of expanding limit (103) is equipped with at least two sets of equidistant installation screw (104), at least two sets of equidistant mounting bolt (401) are installed to the week of apron (4).
7. The well-sealed oil pump valve of claim 1, wherein: a sealing groove (105) is formed in the periphery of an opening of the oil pump valve housing (1) facing one end of the cover plate (4), and a sealing ring (402) symmetrical to the sealing groove (105) is arranged on one side of the cover plate (4) facing the oil pump valve housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320348833.1U CN219774751U (en) | 2023-03-01 | 2023-03-01 | Oil pump valve with good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320348833.1U CN219774751U (en) | 2023-03-01 | 2023-03-01 | Oil pump valve with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774751U true CN219774751U (en) | 2023-09-29 |
Family
ID=88134805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320348833.1U Active CN219774751U (en) | 2023-03-01 | 2023-03-01 | Oil pump valve with good sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774751U (en) |
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2023
- 2023-03-01 CN CN202320348833.1U patent/CN219774751U/en active Active
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