CN214344905U - End cover supporting structure for filter - Google Patents
End cover supporting structure for filter Download PDFInfo
- Publication number
- CN214344905U CN214344905U CN202023199116.2U CN202023199116U CN214344905U CN 214344905 U CN214344905 U CN 214344905U CN 202023199116 U CN202023199116 U CN 202023199116U CN 214344905 U CN214344905 U CN 214344905U
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- Prior art keywords
- spring
- end cover
- shell
- filter
- structure according
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- 230000000670 limiting effect Effects 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 230000000452 restraining effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to an end cover supporting structure for a filter, which comprises a shell (1), an end cover (2) and a spring (3); the shell (1) comprises a shell bottom surface (11) and a shell inner wall (12); the end cover (2) is arranged on the filter element (4); the end cover (2) is positioned in the shell (1), the spring (3) is abutted against the bottom surface (11) of the shell, and the outer edge of the end cover (2) is matched with the inner wall (12) of the shell; the spring connecting structure (22) is fixedly arranged at the center of the end cover (2) to prevent the spring (3) from falling off from the end cover (2). Compared with the prior art, the utility model has the advantages of solve the spring and violently fall, improve the stability of spring in the casing.
Description
Technical Field
The utility model relates to a filter field, concretely relates to end cover bearing structure for filter.
Background
The end cover supporting structure has the function of fixing the spatial position of the filter element of the filter in the shell, and ensures that the filter cannot mix internal dirty oil and clean oil caused by the position deviation of the filter element.
The common end cover supporting mode for the filter is to support the filter element by contacting a spring with the lower end cover of the filter element, so that the filter element plays a role of elastic support in the vertical direction. However, the spring and the filter element are two mutually independent parts, the spring is generally placed into the bottom of the shell in the assembling process, and then the filter element is pressed into the shell, because the shell of the filter is mostly cylindrical, the bottom is deep, the filter element can be transversely fallen when the spring is placed into the shell, the filter element needs to be righted again or is not positioned at the circle center of the bottom, so that the filter element is stressed and deflected, and is unstable, inner leakage is caused in use, and even the spring loses the supporting function. In addition, this type of support structure has difficulty in giving lateral positioning constraints to the filter insert.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solve the spring and violently fall in the casing, improve the end cover bearing structure for the filter of the stability of spring in the casing.
The purpose of the utility model can be realized through the following technical scheme:
an end cover supporting structure for a filter comprises a shell, an end cover and a spring; the shell comprises a shell bottom surface and a shell inner wall; the end cover is arranged on the filter element;
the end cover is positioned in the shell, the spring is abutted against the bottom surface of the shell, and the outer edge of the end cover is matched with the inner wall of the shell;
the center of the end cover is fixedly provided with a spring connecting structure, so that the spring does not fall off from the end cover.
Furthermore, the spring connecting structure is surrounded by a plurality of cambered surfaces with rough structures, the outer diameter of the spring connecting structure is matched with the inner diameter of a spiral of the spring, and the spring connecting structure is clamped with the spring during installation.
Further, the roughness structure comprises threads or corrugations.
Further, the arc length of the cambered surfaces is pi/12-pi/8, and the arc length of each cambered surface interval is pi/40-pi/30. The spring connecting structure is provided with intervals for better matching with the springs, during installation, each arc surface can be pushed by external force, space is reserved for installing the springs, and after installation is completed, the arc surfaces naturally recover to clamp the springs.
Further, the width of the thread is 40-80% of the diameter of the spring wire.
Further, the height of the spring connecting structure is 15-25% of the spiral length of the spring. Too high a spring attachment structure would firstly waste material and secondly make it difficult to fit the spring closer to the end cap; too short makes it difficult to secure the spring.
Further, the spring is made of stainless steel.
Furthermore, the side face of the end cover is provided with at least two transverse limiting structures for effectively limiting the central positions of the filter element and the spring in the shell.
Furthermore, the transverse limiting structure is a convex block, and the convex block is abutted against the inner wall of the shell during installation.
Furthermore, the inner wall of the shell is provided with a plurality of grooves matched with the bumps, and the grooves are connected with the bumps in an interference fit manner.
Further, the end cover is made of metal or nonmetal materials.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the utility model can support the elastic force of the filter element in the vertical direction through the action of the spring, thereby ensuring that the position of the filter element in the shell can not deviate due to factors such as vibration, oil pressure and the like in the use process;
(2) the utility model reduces the assembly difficulty, solves the problems of horizontal falling and eccentricity of the spring in the shell, and reduces the rejection rate of product production;
(3) the utility model discloses add horizontal limit structure, improve the reliability of product, leak the risk in reducing, improve the stability of spring in the casing.
Drawings
FIG. 1 is a schematic sectional view of an embodiment;
FIG. 2 is a schematic view of an embodiment of an end cap and spring combination;
the reference numbers in the figures indicate: 1-shell, 11-shell bottom surface, 12-shell inner wall, 2-end cover, 21-transverse limiting structure, 22-spring connecting structure and 3-spring.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Examples
An end cover supporting structure for a filter comprises a shell 1, an end cover 2 and a spring 3; the shell 1 comprises a shell bottom surface 11 and a shell inner wall 12; the end cover 2 is arranged on the filter element 4; the end cover 2 is positioned in the shell 1, the spring 3 is abutted against the bottom surface 11 of the shell, and the outer edge of the end cover 2 is matched with the inner wall 12 of the shell; the center of the end cover 2 is fixedly provided with a spring connecting structure 22 to prevent the spring 3 from falling off from the end cover 2, and the side surface of the end cover 2 is provided with at least two transverse limiting structures 21 for effectively limiting the central positions of the filter element 4 and the spring 3 in the shell 1.
The transverse limiting structure 21 is a convex block, the inner wall 12 of the housing is provided with a plurality of grooves matched with the convex block, and the grooves are connected with the convex block in an interference fit manner. The material of the spring 3 is stainless steel. The end cap 2 is of a metallic or non-metallic material.
During filter assembly, fix spring 3 on the spring coupling structure 22 of end cover 2 earlier, make spring 3 and end cover 2 even as an organic whole, insert casing 1 with filter core spring combination again, limit structure on the end cover 2 restricts filter core spring combination at the casing center through clearance or interference fit with shells inner wall 11, and can not appear violently falling, plays horizontal limiting displacement. The spring 3 plays an elastic function of the structure, so that the filter element 4 has a certain elastic force variable in the vertical direction, and a limiting effect in the vertical direction is achieved. This limits the position of the filter insert 4 in the space of the housing 1.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. An end cover supporting structure for a filter is characterized by comprising a shell (1), an end cover (2) and a spring (3); the shell (1) comprises a shell bottom surface (11) and a shell inner wall (12); the end cover (2) is arranged on the filter element (4); the end cover (2) is positioned in the shell (1), the spring (3) is abutted against the bottom surface (11) of the shell, and the outer edge of the end cover (2) is matched with the inner wall (12) of the shell; the spring connecting structure (22) is fixedly arranged at the center of the end cover (2) to prevent the spring (3) from falling off from the end cover (2).
2. A filter end cap support structure according to claim 1, wherein the spring attachment structure (22) is defined by a plurality of curved surfaces having a rough structure, the outer diameter of the spring attachment structure (22) matches the inner diameter of the spiral of the spring (3), and the spring attachment structure (22) is engaged with the spring (3) when installed.
3. A filter end cap support structure according to claim 2, wherein the roughness comprises threads or corrugations.
4. A filter end cap support structure according to claim 3, wherein the arcs have an arc length of pi/12-pi/8, the arc length of each arc interval is pi/40-pi/30, and the width of the thread is 40-80% of the diameter of the spring wire of the spring (3).
5. A filter end cap support structure according to claim 1, wherein the height of the spring attachment structure (22) is 15-25% of the helical length of the spring (3).
6. A filter end cap support structure according to claim 1, wherein the spring (3) is made of stainless steel.
7. A filter end cover support structure according to claim 1, wherein the side of the end cover (2) is provided with at least two lateral limiting structures (21) for effectively limiting the filter element (4) and the spring (3) to the central position of the housing (1).
8. A filter end support according to claim 7, in which the lateral restraining structure (21) is a projection which abuts the housing wall (12) when installed.
9. The filter end cover supporting structure according to claim 8, wherein the inner shell wall (12) is provided with a plurality of grooves matched with the projections, and the grooves are connected with the projections in an interference fit manner.
10. A filter end cap support structure according to claim 1, wherein the end cap (2) is of a metallic or non-metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023199116.2U CN214344905U (en) | 2020-12-24 | 2020-12-24 | End cover supporting structure for filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023199116.2U CN214344905U (en) | 2020-12-24 | 2020-12-24 | End cover supporting structure for filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214344905U true CN214344905U (en) | 2021-10-08 |
Family
ID=77947829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023199116.2U Active CN214344905U (en) | 2020-12-24 | 2020-12-24 | End cover supporting structure for filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214344905U (en) |
-
2020
- 2020-12-24 CN CN202023199116.2U patent/CN214344905U/en active Active
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