Wear-resistant hydraulic tappet
By setting up a filter and magnet at the oil inlet hole of the hydraulic lifter, the operational instability caused by wear and impurities of the hydraulic lifter is solved, and a longer service life and higher operating efficiency are achieved.
Patent Information
- Application Number
- CN202421822040.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-30
AI Technical Summary
During use, existing hydraulic lifts are prone to unstable gap adjustment due to wear, impurities in the engine oil aggravate the wear of internal components, affecting service life and operating efficiency.
A filter is installed at the oil inlet hole of the hydraulic lifter, and a magnet is installed on the filter to block the iron-containing impurities in the engine oil, reduce wear on the piston and cylinder, and at the same time, it is possible to replace the filter in the later stage through a clamping device.
Effectively block impurities in engine oil, reduce wear of hydraulic lifting parts, improve service life, and simplify maintenance process.
Smart Images
Figure CN222879738U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydraulic tappets and relates to a hydraulic tappet, in particular to a wear-resistant hydraulic tappet. Background Art
[0002] The automobile tappet is the main component of the valve mechanism. It is a mechanism that uses oil pressure to transfer the force on the eccentric wheel on the camshaft to the valve. The hydraulic tappet is mainly composed of a piston, a one-way valve, and a return spring. The tappet is an important component for adjusting the clearance of the engine valve mechanism. Its performance directly affects the performance of the entire engine. During the actual use of the tappet, the piston and the tappet will wear. When the wear time is too long, it is easy to cause problems in the clearance adjustment, resulting in unstable operation. Since the engine oil contains impurities, after the engine oil enters, it is easy to cause increased wear or scratches on the internal components, thereby affecting the operating efficiency.
[0003] During the use of the existing hydraulic tappet, the hydraulic tappet moves up and down on the outer surface of the cylinder body, which may cause certain damage to the cylinder body, thereby affecting the service life of the cylinder body and increasing the use cost. Summary of the invention
[0004] The purpose of the utility model is to provide a wear-resistant hydraulic tappet in view of the above problems existing in the prior art.
[0005] The purpose of the utility model can be achieved through the following technical solutions: a wear-resistant hydraulic tappet, comprising a tappet housing, a piston and a cylinder, an oil inlet hole being provided on the tappet housing, characterized in that a partition layer is provided in the piston, a pressure regulating hole is provided on the partition layer, a one-way valve is provided between the piston and the cylinder and relative to the pressure regulating hole, a reset spring is provided in the cylinder and relative to the lower end of the one-way valve, a filter is provided at the oil inlet hole, a mounting boss is provided on the inner wall of the oil inlet hole, a connecting column is provided on the mounting boss, a connecting hole for the connecting column to pass through is provided on the filter, a clamping assembly is provided on the connecting column, the clamping assembly consists of a clamping protrusion and a pressing spring, a mounting column is provided on the filter, and a magnet is provided on the mounting column.
[0006] In the above-mentioned wear-resistant hydraulic tappet, a mounting groove is provided on the cylinder, a retaining ring is provided on the mounting groove, and an oil inlet groove is provided on the upper end of the inner wall of the tappet housing relative to the contact with the piston.
[0007] In the above-mentioned wear-resistant hydraulic tappet, the mounting post is fixed to the filter screen by threads, and the magnet is fixed to the mounting post by nuts.
[0008] Compared with the prior art, the utility model sets a filter at the oil inlet and sets a magnet on the filter, which can block iron impurities in the engine oil, reduce the wear of the piston and the cylinder, and increase the service life of the hydraulic tappet. The filter can also be quickly replaced during later maintenance through a clamping device. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a cross-sectional structural schematic diagram of the utility model.
[0010] Figure 2 It is a partial enlarged structural schematic diagram of point A of the utility model.
[0011] In the figure, 1. push rod housing; 2. piston; 3. cylinder; 4. oil inlet hole; 5. partition layer; 6. pressure regulating hole; 7. one-way valve; 8. return spring; 9. filter screen; 10. mounting boss; 11. connecting column; 12. connecting hole; 13. snap-fit assembly; 14. snap-fit protrusion; 15. pressing spring; 16. mounting column; 17. magnet; 18. mounting groove; 19. snap ring; 20. oil inlet groove. DETAILED DESCRIPTION
[0012] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0013] like Figure 1 , Figure 2 As shown, the wear-resistant hydraulic tappet comprises a tappet housing 1, a piston 2 and a cylinder 3, an oil inlet hole 4 is provided on the tappet housing 1, a partition layer 5 is provided in the piston 2, a pressure regulating hole 6 is provided on the partition layer 5, a one-way valve 7 is provided between the piston 2 and the cylinder 3 and relative to the pressure regulating hole 6, a return spring 8 is provided in the cylinder 3 and relative to the lower end of the one-way valve 7, a filter screen 9 is provided at the oil inlet hole 4, a mounting boss 10 is provided on the inner wall of the oil inlet hole 4, a connecting column 11 is provided on the mounting boss 10, a connecting hole 12 for the connecting column 11 to pass through is provided on the filter screen 9, a clamping assembly 13 is provided on the connecting column 11, and the clamping assembly 1 3 is composed of a clamping protrusion 14 and a pressing spring 15. A mounting column 16 is arranged on the filter 9. When installing, the clamping protrusion 14 is pressed to make the clamping protrusion 14 enter the interior of the connecting column 11, and then the filter 9 is installed. After the connecting column 11 passes through the connecting hole 12, the clamping protrusion 14 has no binding force and automatically resets under the action of the pressing spring 15 to clamp the filter 9. A magnet 17 is arranged on the mounting column 16. The filter 9 is arranged at the oil inlet hole 4, and the magnet 17 is arranged on the filter 9, which can block iron impurities in the engine oil, reduce the wear of the piston 2 and the cylinder 3, and improve the service life of the hydraulic tappet.
[0014] To be more specific, a mounting groove 18 is provided on the cylinder 3 , a retaining ring 19 is provided on the mounting groove 18 , and an oil inlet groove 20 is provided at the upper end of the inner wall of the tappet housing 1 and relative to the contact with the piston 2 .
[0015] To be more specific, the mounting post 16 is fixed to the filter screen 9 by threads, and the magnet 17 is fixed to the mounting post 16 by a nut.
[0016] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0017] Although this article uses more terms such as tappet housing 1, piston 2, cylinder 3, oil inlet hole 4, partition layer 5, pressure regulating hole 6, one-way valve 7, return spring 8, filter screen 9, mounting boss 10, connecting column 11, connecting hole 12, clamping assembly 13, clamping convex block 14, pressing spring 15, mounting column 16, magnet 17, mounting groove 18, snap ring 19, oil inlet groove 20, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.
Claims
1. A wear-resistant hydraulic tappet, comprising a tappet housing (1), a piston (2) and a cylinder (3), wherein the tappet housing (1) is provided with an oil inlet hole (4), characterized in that: A partition layer (5) is provided in the piston (2), a pressure regulating hole (6) is provided on the partition layer (5), a one-way valve (7) is provided between the piston (2) and the cylinder (3) and relative to the pressure regulating hole (6), a return spring (8) is provided in the cylinder (3) and relative to the lower end of the one-way valve (7), a filter screen (9) is provided at the oil inlet hole (4), a mounting boss (10) is provided on the inner wall of the oil inlet hole (4), a connecting column (11) is provided on the mounting boss (10), a connecting hole (12) for the connecting column (11) to pass through is provided on the filter screen (9), a clamping assembly (13) is provided on the connecting column (11), the clamping assembly (13) is composed of a clamping protrusion (14) and a pressing spring (15), a mounting column (16) is provided on the filter screen (9), and a magnet (17) is provided on the mounting column (16).
2. A wear-resistant hydraulic tappet according to claim 1, characterized in that: The cylinder (3) is provided with a mounting groove (18), a retaining ring (19) is provided on the mounting groove (18), and an oil inlet groove (20) is provided at the upper end of the inner wall of the tappet housing (1) and at a position in contact with the piston (2).
3. The wear-resistant hydraulic tappet according to claim 1, characterized in that: The mounting post (16) is fixed to the filter screen (9) via threads, and the magnet (17) is fixed to the mounting post (16) via a nut.