CN213872174U - Integrated pressure limiting valve - Google Patents
Integrated pressure limiting valve Download PDFInfo
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- CN213872174U CN213872174U CN202022994595.0U CN202022994595U CN213872174U CN 213872174 U CN213872174 U CN 213872174U CN 202022994595 U CN202022994595 U CN 202022994595U CN 213872174 U CN213872174 U CN 213872174U
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- pressure limiting
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Abstract
An integrated pressure limiting valve relates to the technical field of valves; the valve comprises a valve body, a plunger, a spring and a thrust gasket; the valve body is provided with a valve hole, the outer side of the valve hole is provided with an oil inlet hole, the oil inlet hole is communicated with the valve hole, and the inner wall of the oil inlet hole of the valve body is provided with an annular groove for mounting a thrust gasket; a spring and a plunger piston are sequentially arranged in the valve hole from inside to outside; the thrust washer limits the plunger and the spring in the valve hole; the bottom end of the valve body is provided with an exhaust hole, and the peripheral surface of the valve body corresponding to the valve hole is also provided with an oil drainage hole communicated with the valve hole; the valve body structure of the utility model is convenient for the standardized design of the pressure limiting valve, reduces the design difficulty of the oil pump and improves the design efficiency; the pressure limiting valve and the oil pump separated structure is adopted, so that the valve can be conveniently and independently mounted and dismounted, and the connection mode is simple and reliable.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to pressure limiting valve.
Background
The oil pump pressure limiting valve plays a role in controlling the flow of oil and adjusting the pressure of the oil in the operation process of the oil pump. The pressure limiting valve is used as an essential part of the oil pump, is generally integrated at an oil pump outlet hole and is used for pressure unloading of the oil pump, so that the pressure of the main oil gallery is controlled under a certain range value. The plunger of the traditional oil pump pressure limiting valve mostly adopts a cylinder structure with one closed end, and the circumferential surface of the plunger is in small clearance fit with the hole wall of the valve hole. When the oil pressure of the outlet hole of the engine oil pump reaches the designed opening pressure, the oil pressure pushes the plunger to axially move the compression spring to the opening position, and the pressure limiting valve begins to drain oil.
For oil pump products with limited structure and space size, sometimes the valve body of the pressure limiting valve cannot be integrated on the pump body or the pump cover, and the valve body needs to be independently used and designed, so that the pressure limiting valve becomes an independent component, and the pressure limiting valve is installed on the oil pump after being assembled. The valve body integrated on the pump body and the pump cover needs to be designed in a non-standardized mode according to the spatial arrangement and structural characteristics of each oil pump, the design is complex, and the design difficulty is high.
SUMMERY OF THE UTILITY MODEL
To there being the defect that the pressure limiting valve design is complicated, the design degree of difficulty is big in above-mentioned prior art, the utility model aims to solve the problem that an integral type pressure limiting valve is proposed, its simple structure, the design degree of difficulty is little.
In order to solve the above problem, the utility model discloses a technical scheme as follows: an integrated pressure limiting valve comprises a valve body, a plunger, a spring and a thrust gasket; the valve body is provided with a valve hole, the outer side of the valve hole is provided with an oil inlet hole, the oil inlet hole is communicated with the valve hole, and the inner wall of the valve body corresponding to the oil inlet hole is provided with an annular groove for mounting a thrust gasket; the valve hole is provided with a spring and a plunger in sequence from inside to outside; the thrust washer limits the plunger and the spring in the valve hole; the bottom of the valve body is provided with an exhaust hole, and the peripheral surface of the valve body corresponding to the valve hole is provided with an oil drainage hole communicated with the valve hole.
Preferably, the number of the oil drainage holes is six, and the oil drainage holes are circular through holes.
Preferably, the outer circumferential surface of the valve body oil inlet hole is provided with a boss.
Preferably, the bolt hole is arranged on the boss on the outer peripheral surface of the oil outlet hole of the valve body.
The utility model discloses the beneficial effect who gains lies in: the utility model has simple structure, is convenient for the standardized design of the pressure limiting valve, reduces the design difficulty of the oil pump and improves the design efficiency; the pressure limiting valve and the oil pump separated structure is adopted, so that the valve can be conveniently and independently mounted and dismounted, and the connection mode is simple and reliable.
Drawings
FIG. 1 is an exploded view of a pressure limiting valve in an embodiment of the present invention;
fig. 2 is a schematic view of a pressure limiting valve in embodiment 1 of the present invention;
fig. 3 is a schematic view of the installation of the pressure limiting valve in embodiment 1 of the present invention;
fig. 4 is a schematic view of a pressure limiting valve in embodiment 2 of the present invention;
fig. 5 is a schematic view of the installation of the pressure limiting valve in embodiment 2 of the present invention;
in the figure:
1-valve body 2-plunger 3-spring 4-thrust washer
5-ring groove 6-exhaust hole 7-oil drain hole 8-pump body or pump cover.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but 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. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through intervening media, and the specific meaning of the terms may be understood by those skilled in the art according to their specific situation.
An integrated pressure limiting valve, as shown in fig. 1 to 4, comprises a valve body 1, a plunger 2, a spring 3 and a thrust washer 4; the valve body is provided with a valve hole, the outer side of the valve hole is provided with an oil inlet hole, and the oil inlet hole is communicated with the valve hole; an annular groove 5 for mounting a thrust gasket 4 is formed in the inner wall of the oil inlet hole of the valve body 1; the valve hole is sequentially provided with a spring 3 and a plunger 2 from inside to outside; the thrust washer 4 limits the plunger 2 and the spring 3 in the valve hole; the bottom end of the valve body 1 is provided with an exhaust hole 6, and the peripheral surface of the valve body 1 corresponding to the valve hole is also provided with an oil drainage hole 7; the pressure limiting valve is arranged on a pump body or a pump cover 8 of the oil pump through a valve body 1.
The number of the oil drainage holes 7 is six, and the oil drainage holes are circular through holes.
Example 1
An integrated pressure limiting valve is shown in figures 2 and 3, wherein a boss is arranged on the peripheral surface of an oil inlet of a valve body 1, a stepped through hole is formed in the joint of a pump body or a pump cover 8 of an oil pump and the valve body 1, and the pressure limiting valve is connected with the pump body or the pump cover 8 of the oil pump in an interference fit mode through the boss and the stepped through hole.
Example 2
An integrated pressure limiting valve is shown in figures 4 and 5, wherein a bolt hole is formed in the joint of a pump body or a pump cover 8 of an oil pump and a valve body 1, a bolt hole is also formed in a boss on the outer peripheral surface of an oil inlet of the valve body 1, assembling bolts are installed on the boss, and the pressure limiting valve is fixedly installed on the pump body or the pump cover 8 of the oil pump through the bolts.
The valve body structure of the utility model is convenient for the standardized design of the pressure limiting valve, reduces the design difficulty of the oil pump and improves the design efficiency; the pressure limiting valve and the oil pump separated structure is adopted, so that the valve can be conveniently and independently mounted and dismounted, and the connection mode is simple and reliable.
The above-mentioned embodiment is the utility model discloses the implementation scheme of preferred, in addition, the utility model discloses can also realize by other modes, any obvious replacement is all within the protection scope of the utility model under the prerequisite that does not deviate from this technical scheme design.
In order to make it easier for those skilled in the art to understand the improvement of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and in order to clarify, some other elements have been omitted from this document, those skilled in the art should recognize that these omitted elements may also constitute the content of the present invention.
Claims (4)
1. An integral type pressure limiting valve which characterized in that: comprises a valve body (1), a plunger (2), a spring (3) and a thrust washer (4); the valve body (1) is provided with a valve hole, the outer side of the valve hole is provided with an oil inlet hole, and the oil inlet hole is communicated with the valve hole; an annular groove (5) for mounting a thrust gasket (4) is formed in the inner wall of the valve body (1) corresponding to the oil inlet hole; a spring (3) and a plunger (2) are sequentially arranged in the valve hole from inside to outside; the thrust washer (4) limits the plunger (2) and the spring (3) in the valve hole; the bottom of valve body (1) is equipped with exhaust hole (6), still have on the outer peripheral face that corresponds the valve opening of valve body (1) with the communicating draining hole (7) of valve opening.
2. An integrated pressure limiting valve as claimed in claim 1 wherein: the number of the oil drainage holes (7) is six, and the oil drainage holes (7) are circular through holes.
3. An integrated pressure limiting valve as claimed in claim 1 wherein: and a boss is arranged on the peripheral surface of the oil inlet of the valve body (1).
4. An integrated pressure limiting valve as claimed in claim 1 wherein: the boss on the peripheral surface of the oil outlet of the valve body (1) is provided with a bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022994595.0U CN213872174U (en) | 2020-12-14 | 2020-12-14 | Integrated pressure limiting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022994595.0U CN213872174U (en) | 2020-12-14 | 2020-12-14 | Integrated pressure limiting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213872174U true CN213872174U (en) | 2021-08-03 |
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ID=77067644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022994595.0U Active CN213872174U (en) | 2020-12-14 | 2020-12-14 | Integrated pressure limiting valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN213872174U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114744361A (en) * | 2022-04-14 | 2022-07-12 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
-
2020
- 2020-12-14 CN CN202022994595.0U patent/CN213872174U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114744361A (en) * | 2022-04-14 | 2022-07-12 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
| CN114744361B (en) * | 2022-04-14 | 2024-04-19 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
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