Integral valve seat yoke, shock absorber, air spring assembly

Abstract

The utility model discloses an integral valve seat yoke, shock absorber, air spring assembly, including valve seat yoke main part, valve seat yoke main part is integral structure, valve seat yoke main part includes the valve seat department of being located valve seat yoke main part upper portion and the yoke department of being located valve seat yoke main part lower portion, the utility model discloses, the valve seat and yoke in prior art are designed as the integral structure of valve seat yoke main part, avoid the problem that the number of spare parts of split structure is more, assembly process is complex, and assembly efficiency is low, and the problem that the reliability and service life of shock absorber are reduced under the long -term vibration impact of split type design, appear loose, wear and tear etc.

Description

Technical Field

[0001] This utility model relates to the field of vibration damper technology, and more specifically to an integrated valve seat fork, vibration damper, and air spring assembly. Background Technology

[0002] In the automotive shock absorber field, dual-valve shock absorbers are common, and the valve seat and fork of a dual-valve shock absorber are usually separate structures. This separate structure has the problems of a large number of parts, complex assembly process, and low assembly efficiency. Installation errors are prone to occur during assembly, affecting the overall performance of the shock absorber.

[0003] Furthermore, the connecting parts of a split structure are prone to loosening and wear under long-term vibration and impact, which reduces the reliability and service life of the vibration damper. The combination of multiple components also increases product costs and hinders market competitiveness. Therefore, developing an integrated structure for the valve seat and fork of a vibration damper that can solve the above problems is of significant practical importance. Utility Model Content

[0004] The technical problem to be solved by this utility model is how to prevent the connection between the valve seat and the fork from loosening and wearing under long-term vibration and impact, thereby reducing the reliability and service life of the shock absorber.

[0005] This utility model solves the above-mentioned technical problems through the following technical means: an integrated valve seat fork, including a valve seat fork body, the valve seat fork body is an integral structure, the valve seat fork body includes a valve seat part located at the upper part of the valve seat fork body and a fork part located at the lower part of the valve seat fork body.

[0006] As a preferred technical solution, the axis of the valve seat is coaxial with the axis of the fork, and the vertical projections of the valve seat and the fork may or may not coincide.

[0007] As a preferred technical solution, the valve seat fork body is provided with two oil passages, and a recovery valve and a compression valve are respectively provided on the flow path of the two oil passages. The two oil passages can be connected, and the valve seat fork body is provided with an installation cavity that is compatible with the recovery valve and the compression valve.

[0008] As a preferred technical solution, the two oil passages are a first oil passage and a second oil passage. The valve seat is provided with a hole 1 that connects the first oil passage and the second oil passage, and a hole 4 that connects to the hole 1. A plug is fixed at the end of the hole 1 that is away from the hole 4.

[0009] As a preferred technical solution, the first oil passage includes holes 10, 11, and 2 connected in sequence. Holes 10 and 11 are inclined. One end of holes 10 and 11 is connected to one end of the recovery valve, and the other end of the recovery valve is connected to hole 2.

[0010] As a preferred technical solution, the first oil passage also includes a vertical shaft hole and a horizontal shaft hole. The vertical shaft hole and the horizontal shaft hole are vertically connected. The top of the vertical shaft hole is coplanar with the top of the valve seat and the bottom is connected to the horizontal shaft hole. The horizontal shaft hole is connected to one end of the recovery valve and the other end of the recovery valve is connected to one end of the hole.

[0011] As a preferred technical solution, the second oil passage includes hole nine, horizontal shaft hole two, and hole five. The top of hole nine is coplanar with the top of the valve seat. The bottom of hole nine is connected to one end of horizontal shaft hole two. The other end of horizontal shaft hole two is connected to one end of the compression valve. The other end of the compression valve is connected to one end of hole three. A plug is fixedly connected to the other end of hole three.

[0012] As a preferred technical solution, the valve seat fork body is provided with an oil pipe through hole that communicates with the first oil passage and the second oil passage, and the valve seat part is provided with a screw connection hole.

[0013] This utility model also solves the above-mentioned technical problems through the following technical means: a shock absorber, including the above-mentioned integrated valve seat fork, working cylinder, end cover, piston rod, and oil reservoir. The working cylinder and oil reservoir are fixedly connected to the top of the valve seat fork body. The oil reservoir is located outside the working cylinder and there is a gap between it and the working cylinder. The end cover is fixedly connected to the top of the oil reservoir. The piston rod slides in cooperation with the oil reservoir, working cylinder, and end cover, and the piston rod is located inside the working cylinder.

[0014] This utility model also solves the above-mentioned technical problems through the following technical means: an air spring assembly, including the above-mentioned integrated valve seat fork or shock absorber.

[0015] The beneficial effects of this utility model are as follows:

[0016] In this invention, the valve seat and fork of the prior art are designed as an integrated structure of valve seat and fork body, which avoids the problems of a large number of parts, complicated assembly process and low assembly efficiency of the split structure. At the same time, it avoids the problems of loosening and wear under long-term vibration and impact, which reduce the reliability and service life of the vibration damper. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the integrated valve seat fork structure provided in Embodiment 1 of this utility model;

[0018] Figure 2 Provided for Embodiment 1 of this utility model Figure 1 A partial enlarged structural diagram of A;

[0019] Figure 3 This is a partial cross-sectional structural diagram of the valve seat provided in Embodiment 1 of this utility model;

[0020] Figure 4This is a schematic diagram of the cross-sectional structure of the integrated valve seat fork provided in Embodiment 1 of this utility model;

[0021] Reference numerals: 1. Valve seat; 2. Fork section; 3. Hole 1; 4. Hole 2; 5. Hole 3; 6. Hole 4; 7. Hole 5; 8. Hole 6; 9. Hole 7; 10. Hole 8; 11. Hole 9; 12. Hole 10; 13. Hole 11; 14. Reset valve; 15. Compression valve; 16. Working cylinder; 17. End cap; 18. Piston rod; 19. Oil reservoir; 20. Plug; 21. Vertical shaft hole 1; 22. Horizontal shaft hole 1; 23. Horizontal shaft hole 2. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Example 1

[0024] See Figure 1 The integrated valve seat fork includes a valve seat fork body, which includes a valve seat part 1 located at the upper part of the valve seat fork body and a fork part 2 located at the lower part of the valve seat fork body. The valve seat part 1 is functionally equivalent to the valve seat in the prior art, and the fork part 2 is functionally equivalent to the fork in the prior art. By designing the valve seat and fork in the prior art as an integrated structure of the valve seat fork body, the problems of a large number of parts, complex assembly process, and low assembly efficiency of the split structure are avoided. At the same time, it avoids the problems of loosening and wear under long-term vibration and impact, which reduce the reliability and service life of the vibration damper.

[0025] Two mounting cavities are provided on the main body of the valve seat fork. In this embodiment, two mounting cavities are provided on the valve seat portion 1 of the main body of the valve seat fork. The two mounting cavities are used to install the reset valve 14 and the compression valve 15, respectively. Correspondingly, two oil passages are provided in the valve seat portion 1, namely the first oil passage and the second oil passage. The reset valve 14 and the compression valve 15 are located in the first oil passage and the second oil passage, respectively. The reset valve 14 or the compression valve 15 is provided on the flow path of the first oil passage and the second oil passage, respectively. The reset valve 14 and the compression valve 15 are used to control the smooth flow of oil under different working conditions. The first oil passage and the second oil passage are connected and connected to the accumulator.

[0026] See Figure 4A hydraulic connector is detachably connected to the valve seat 1. One end of the valve seat 1 has holes 7 and 8, which are screw connection holes for connecting the hydraulic connector to the downhole screws of the valve seat 1. Two oil pipe through holes are provided on the valve seat 1. The two oil pipe through holes are connected to the first oil passage and the second oil passage respectively. The end of the hydraulic connector opposite to the oil pipe through hole is connected to an oil pipe. External oil flows into the first oil passage and the second oil passage through the two oil pipes and the oil pipe through holes. The oil pipe through holes are holes 9 and 10.

[0027] See Figure 1 , Figure 4 The first oil passage includes hole 10 12, hole 11 13, and hole 2 4. Hole 10 12 and hole 11 13 are inclined holes. One end of hole 10 12 and hole 11 13 is connected to one end of the recovery valve 14, and the other end of the recovery valve 14 is connected to hole 2 4.

[0028] To improve oil flow, the first oil passage also includes a vertical shaft hole 21 and a horizontal shaft hole 22. The vertical shaft hole 21 and the horizontal shaft hole 22 are arranged vertically. The top of the vertical shaft hole 21 is coplanar with the plane of the top of the valve seat 1, and the bottom is connected to the horizontal shaft hole 22. The horizontal shaft hole 22 is connected to one end of the recovery valve 14. Hole 24 is a longitudinal shaft hole, and the other end of the recovery valve 14 is connected to one end of hole 24. The other end of hole 24 is closed by a plug 20. One end or the other end of the recovery valve 14 can be the inlet or outlet of the recovery valve 14, or it can be either the outlet or the inlet. The top of the vertical shaft hole 21 is closed by a plug 20, thereby forcing the oil to enter the working cylinder 16 of the shock absorber and the oil reservoir 19 through holes 10 12 and 11 13. Hole 7 9 is connected to the vertical shaft hole 21 and the horizontal shaft hole 22.

[0029] It should be noted that in this embodiment, a coordinate system is established with the axial direction of the valve seat 1 as the vertical axis, the length direction of the valve seat 1 as the horizontal axis, and the thickness (depth) direction of the valve seat 1 as the vertical axis. Then, the axial direction of the vertical axis hole 1 21 is parallel to the vertical axis, the axial direction of the horizontal axis hole 1 22 is parallel to the horizontal axis, and the axial direction of the hole 2 4 is parallel to the vertical axis.

[0030] The second oil passage includes hole 9 11, horizontal shaft hole 23, and hole 5 7. The top of hole 9 11 is coplanar with the top of valve seat 1. The bottom of hole 9 11 is connected to one end of horizontal shaft hole 23. The other end of horizontal shaft hole 23 is connected to one end of compression valve 15. The other end of compression valve 15 is connected to one end of hole 3 5. The other end of hole 3 5 is sealed by plug 20. The axis of hole 9 11 is parallel to the vertical axis, the axis of horizontal shaft hole 23 is parallel to the horizontal axis, and the axis of hole 3 5 is parallel to the vertical axis. Hole 8 10 is connected to hole 9 11 and horizontal shaft hole 23.

[0031] See Figure 3The valve seat part 1 is also provided with a hole 3 that connects the second hole 4 and the third hole 5 in the transverse direction. The valve seat part 1 is provided with a fourth hole 6. The valve seat part 1 is connected to the accumulator through the fourth hole 6. One end of the first hole 3 is coplanar with the side end face of the valve seat part 1. This end is closed by the plug 20. The other end of the first hole 3 is connected to the fourth hole 6.

[0032] See Figure 2 One end of the valve seat 1 is provided with hole 7 and hole 8. Hole 7 and hole 8 are screw connection holes for connecting the hydraulic connector to the downhole screw of the valve seat 1.

[0033] The axis of the valve seat part 1 and the axis of the fork part 2 may be coaxial or non-coaxial. In this embodiment, coaxial is taken as an example. Of course, it can also be adjusted to non-coaxial according to product needs. The main body of the valve seat fork is made of cast aluminum, aluminum alloy or other alloy steel. The hole fixed by the plug 20 can also be fixedly connected to the plug 20. The fixed connection can be interference fit, welding or bonding. Of course, other connection methods that can achieve the connection and fastening of the plug 20 and the hole can also be used.

[0034] The vertical projections of the valve seat 1 and the fork 2 may coincide or not coincide. When they do not coincide, the lower fork 2 can rotate counterclockwise or clockwise along the axis of the valve seat 1 and the fork 2 to match different installation situations, thereby forming a situation where the vertical projections do not coincide.

[0035] Working principle:

[0036] Under compression, the oil in the working cylinder 16 flows into the compression valve 15 through hole nine 11 and horizontal shaft hole two 23, then flows into the recovery valve 14 through hole three 5, hole one 3 and hole two 4, and then enters the gap between the working cylinder 16 and the oil reservoir 19 through hole ten 12 and hole eleven 13.

[0037] Under tension, the oil flows in the opposite direction to that under compression.

[0038] Example 2

[0039] The difference between this embodiment and Embodiment 1 is that the damper in this embodiment includes the valve seat fork body, working cylinder 16, end cover 17, piston rod 18, and oil reservoir 19 as in Embodiment 1. The working cylinder 16 and oil reservoir 19 are fixedly connected to the top of the valve seat fork body. The oil reservoir 19 is located outside the working cylinder 16, with a gap between them. The end cover 17 is fixedly connected to the top of the oil reservoir 19. The piston rod 18 slides with the oil reservoir 19, working cylinder 16, and end cover 17, and the piston rod 18 is located inside the working cylinder 16. It should be noted that hole nine 11 is located in the vertical projection plane of the working cylinder 16 on the top of the valve seat part 1, and holes ten 12 and eleven 13 are located in the gap.

[0040] Example 3

[0041] The difference between this embodiment and embodiments 1 and 2 is that it provides an air spring assembly including the valve seat fork body in embodiment 1 or the shock absorber in embodiment 2, wherein the shock absorber is connected to a helical spring or an air spring.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A one-piece valve seat yoke characterized by, It includes a valve seat fork body, which is an integral structure. The valve seat fork body includes a valve seat part located at the upper part of the valve seat fork body and a fork part located at the lower part of the valve seat fork body.

2. The one-piece valve seat yoke of claim 1, wherein, The axis of the valve seat is coaxial with the axis of the fork, and the vertical projections of the valve seat and the fork may or may not coincide.

3. The one-piece valve seat yoke of claim 1, wherein, The valve seat fork body has two oil passages, and a recovery valve and a compression valve are respectively installed on the flow path of the two oil passages. The two oil passages can be connected, and the valve seat fork body has an installation cavity that is compatible with the recovery valve and the compression valve.

4. The one-piece valve seat yoke of claim 3, wherein, The two oil passages are the first oil passage and the second oil passage. The valve seat is provided with a hole 1 that connects the first oil passage and the second oil passage, and a hole 4 that connects to the first oil passage. A plug is fixed at the end of the first oil passage away from the fourth hole.

5. The one-piece valve seat yoke of claim 3, wherein, The first oil passage includes holes 10, 11, and 2 connected in sequence. Holes 10 and 11 are inclined. One end of holes 10 and 11 is connected to one end of the recovery valve, and the other end of the recovery valve is connected to hole 2.

6. The integrated valve seat fork according to claim 5, characterized in that, The first oil passage also includes a vertical shaft hole 1 and a horizontal shaft hole 1. The vertical shaft hole 1 and the horizontal shaft hole 1 are vertically connected. The top of the vertical shaft hole 1 is coplanar with the top of the valve seat, and the bottom is connected to the horizontal shaft hole 1. The horizontal shaft hole 1 is connected to one end of the recovery valve, and the other end of the recovery valve is connected to one end of the hole 2.

7. The integrated valve seat fork according to claim 3, characterized in that, The second oil passage includes hole nine, horizontal shaft hole two, and hole five. The top of hole nine is coplanar with the top of the valve seat. The bottom of hole nine is connected to one end of horizontal shaft hole two. The other end of horizontal shaft hole two is connected to one end of the compression valve. The other end of the compression valve is connected to one end of hole three. A plug is fixedly connected to the other end of hole three.

8. The one-piece valve seat yoke of claim 3, wherein, The valve seat fork body has an oil pipe through hole that connects to the first oil passage and the second oil passage, and the valve seat part has a screw connection hole.

9. Damper, characterized in that The device includes an integrated valve seat fork, working cylinder, end cap, piston rod, and oil reservoir as described in any one of claims 1-8. The working cylinder and oil reservoir are fixedly connected to the top of the valve seat fork body. The oil reservoir is located outside the working cylinder and there is a gap between the oil reservoir and the working cylinder. The end cap is fixedly connected to the top of the oil reservoir. The piston rod slides in cooperation with the oil reservoir, working cylinder, and end cap, and the piston rod is located inside the working cylinder.

10. An air spring assembly characterized by, Includes the damper as described in claim 9, wherein the damper is connected to a helical spring or an air spring.

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