Anti-wear valve plate structure for shock absorber

Abstract

The utility model discloses a shock absorber anti -wear valve piece structure belongs to shock absorber technical field, including the valve piece body, the inside detachable connection of valve piece body has the connecting column, the inside detachable of connecting column is provided with piston rod, and the bottom of piston rod is provided with locking connector, and locking connector is used for the fixation of connecting column in the bottom outside of piston rod, and the outside of piston rod is equipped with the bolt piece of up and down sliding, and the bolt piece is located the top of valve piece body and connecting column, and the outside of piston rod is provided with the limit component, and the limit component rotation fixed is in the outside of piston rod and realizes the fixation between connecting column and valve piece body through bolt piece, through the connecting column that sets up, can directly through locking connector fixed in the bottom outside of piston rod, then utilizes the connection between connecting column and valve piece body, and realizes the fixation through bolt piece and limit component, has improved the dismounting capacity, but also has guaranteed its connection intensity simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of shock absorber technology, specifically relating to a shock absorber anti-wear valve plate structure. Background Technology

[0002] Traditional shock absorber valve plates are prone to sealing failure due to edge wear and central hole deformation during long-term, high-frequency reciprocating motion, which affects the damping stability of the shock absorber.

[0003] According to the authorized announcement number CN221525441U, a shock absorber wear-resistant valve plate structure is known prior art. Although this patent has the advantage of quick assembly and disassembly of the valve plate body, the technical solution of this patent still has the following defects in actual use: In this patent, the connection between the mounting part and the valve plate body is achieved by the elastic movement of the locking block. As a result, the valve plate body only makes contact through a small area of ​​the locking block structure. When the piston rod moves with high resistance, the connection force between the valve plate body and the locking block is insufficient (insufficient connection strength). This can easily lead to increased wear or breakage of the locking block. Utility Model Content

[0004] The purpose of this invention is to provide a shock absorber anti-wear valve plate structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shock absorber anti-wear valve plate structure, comprising a valve plate body, a connecting column detachably connected inside the valve plate body, a detachable piston rod disposed inside the connecting column, a locking connector disposed at the bottom end of the piston rod, the locking connector being used to fix the connecting column outside the bottom end of the piston rod, a sliding pin disposed outside the piston rod, the pin being located above the valve plate body and the connecting column, a limiting component disposed outside the piston rod, the limiting component being rotatably fixed outside the piston rod and the fixing between the connecting column and the valve plate body being achieved through the pin.

[0006] In a preferred embodiment, the valve plate body has a through hole on its periphery, a core hole at its center, and a flared opening on its lower surface.

[0007] In a preferred embodiment, the valve plate body has a plurality of limiting grooves in the middle and a plurality of slots communicating with the limiting grooves in the upper part of the valve plate body.

[0008] In a preferred embodiment, the piston rod has external threads on its exterior, and an integrally formed extension post is provided at the bottom end of the piston rod. The diameter of the extension post is smaller than the diameter of the piston rod. A spline is provided on the outer side of the extension post, and a threaded hole is provided at the bottom end of the extension post.

[0009] In a preferred embodiment, the connecting post has a central hole inside and keyways on both sides of the central hole, and several ear plates are fixedly arranged on the lower part of the connecting post.

[0010] In a preferred embodiment, the locking connector includes a threaded post, a nut is fixedly connected to the bottom end of the threaded post, and a liner is fixedly installed on the top of the nut. A support plate is sleeved on the outside of the threaded post, and a plurality of reinforcing ribs are fixedly provided at the bottom of the support plate.

[0011] In a preferred embodiment, a plurality of insert blocks are fixedly installed at the bottom of the pin, a sleeve hole with an inner diameter larger than the outer diameter of the piston rod is provided in the middle of the pin, and a convex ring is fixedly installed at the top of the pin.

[0012] In a preferred embodiment, the limiting component includes a threaded sleeve fitted around the piston rod, with a pressure ring fixedly installed below the outside of the threaded sleeve and a nut fixedly installed above the outside of the threaded sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are: The shock absorber's wear-resistant valve plate structure, through the set connecting column, can be directly fixed to the outside of the bottom end of the piston rod through the locking connector. Then, the connecting column is used to connect with the valve plate body, and the fixing is achieved through the pin and the limiting component, which improves the disassembly and assembly capability, while also ensuring its connection strength. The shock absorber's wear-resistant valve plate structure, after the connecting column is inserted into the valve plate body, allows the ear plate to be screwed into the limiting groove by rotating the connecting column inside the valve plate body, and then inserted into the slot by the insert block, thereby achieving a fixed connection between the connecting column and the valve plate body, and also achieving the purpose of quick assembly and disassembly. The connection method of the ear plate and the limiting groove increases the contact area between the connecting column and the valve plate body, and improves the reliability of the connection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model from one angle; Figure 2 This is another schematic diagram of the structure of this utility model; Figure 3 This is a cross-sectional view of the valve plate body of the present invention. Figure 4Explosion of the structure of this utility model Figure 1 ; Figure 5 Explosion of the structure of this utility model Figure 2 .

[0015] In the diagram: 1. Valve body; 11. Through hole; 12. Core hole; 13. Limiting groove; 14. Slot; 15. Flaring; 2. Piston rod; 21. External thread; 22. Extension post; 23. Spline; 24. Threaded hole; 3. Connecting post; 31. Center hole; 32. Keyway; 33. Ear plate; 4. Locking connector; 41. Support plate; 42. Threaded post; 43. Liner plate; 44. Nut; 45. Reinforcing rib; 5. Pin; 51. Insert block; 52. Sleeve hole; 53. Raised ring; 6. Limiting assembly; 61. Threaded sleeve; 62. Pressure ring; 63. Nut. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0018] Please see Figure 1 , Figure 4 and Figure 5 This utility model provides a shock absorber anti-wear valve plate structure, including a valve plate body 1, a through hole 11 on the periphery of the valve plate body 1, a core hole 12 at the center of the valve plate body 1, a flared opening 15 on the lower surface of the valve plate body 1, a plurality of limiting grooves 13 in the middle of the valve plate body 1, and a plurality of slots 14 communicating with the limiting grooves 13 on the upper part of the valve plate body 1.

[0019] In this embodiment, the connecting post 3 is inserted into the core hole 12. The flared opening 15 facilitates the installation and fixation of the locking connector 4 at the bottom of the piston rod 2. The ear plate 33 is inserted through the slot 14 and rotated into the limiting groove 13. The insert block 51 is inserted into the slot 14 for limiting.

[0020] Please see Figure 1 , Figure 3 and Figure 4 The valve body 1 is detachably connected to a connecting post 3. The connecting post 3 has a central hole 31 inside, and keyways 32 are opened on both sides of the central hole 31. Several ear plates 33 are fixedly installed on the lower part of the connecting post 3.

[0021] In this embodiment, the ear plate 33 and the connecting post 3 are an integral structure. The extension post 22 is inserted into the center hole 31, and the spline 23 is inserted into the keyway 32, so that the connecting post 3 is connected and fixed outside the extension post 22.

[0022] Please see Figure 2 , Figure 3 and Figure 5 The connecting column 3 has a detachable piston rod 2 inside, the piston rod 2 has an external thread 21 on the outside, the bottom end of the piston rod 2 has an integrally formed extension column 22, the diameter of the extension column 22 is smaller than the diameter of the piston rod 2, the outer side of the extension column 22 has a spline 23, and the bottom end of the extension column 22 has a threaded hole 24.

[0023] In this embodiment, the threaded sleeve 61 of the limiting component 6 is threaded onto the outside of the external thread 21, and a step is provided between the extension post 22 and the piston rod 2. The spline 23 is inserted into the keyway 32 inside the connecting post 3, thereby realizing the connection and fixation between the extension post 22 and the connecting post 3. The threaded post 42 is inserted into the threaded hole 24.

[0024] Please see Figure 4 and Figure 5 The bottom end of the piston rod 2 is provided with a locking connector 4. The locking connector 4 is used to fix the connecting column 3 outside the bottom end of the piston rod 2. The locking connector 4 includes a threaded column 42. The bottom end of the threaded column 42 is fixedly connected to a nut 44, and a liner 43 is fixedly installed on the top of the nut 44. A support plate 41 is sleeved on the outside of the threaded column 42. Several reinforcing ribs 45 are fixedly provided at the bottom of the support plate 41. When the threaded column 42 and the nut 44 rise, the support plate 41 supports the bottom of the connecting column 3, and the reinforcing ribs 45 ensure that the support plate 41 will not deform.

[0025] In this embodiment, the locking connector 4 can be used to fix the connecting post 3 outside the extension post 22. The connecting post 3 can be quickly removed from the extension post 22 by simply removing the locking connector 4. The nut 44 drives the threaded post 42 to rotate and move upward inside the threaded hole 24, thereby driving the support plate 41 to move upward and make the support plate 41 abut against the bottom of the connecting shaft, ensuring the reliability of the connecting post 3 at the bottom of the extension post 22.

[0026] Please see Figure 3 , Figure 4 and Figure 5 The piston rod 2 is fitted with a sliding pin 5. The pin 5 is located above the valve body 1 and the connecting column 3. Several insert blocks 51 are fixedly installed at the bottom of the pin 5. The middle part of the pin 5 is provided with a sleeve hole 52 with an inner diameter larger than the outer diameter of the piston rod 2. A convex ring 53 is fixedly installed at the top of the pin 5. The convex ring 53 is used to allow the pressure ring 62 to descend and abut against its upper surface.

[0027] In this embodiment, the insert block 51 of the pin 5 is inserted into the inside of the slot 14 to limit the ear plate 33 inside the limiting groove 13, thereby ensuring the ear plate 33 is fixed inside the limiting groove 13, and thus the connecting column 3 and the valve plate body 1 are fixedly connected.

[0028] Please see Figure 1 , Figure 4 and Figure 5 A limiting component 6 is provided on the outside of the piston rod 2. The limiting component 6 is rotatably fixed on the outside of the piston rod 2 and the connecting column 3 and the valve plate body 1 are fixed through the pin 5. The limiting component 6 includes a threaded sleeve 61 that is sleeved on the outside of the piston rod 2, and a pressure ring 62 is fixedly installed on the lower outside of the threaded sleeve 61, and a nut 63 is fixedly installed on the upper outside of the threaded sleeve 61.

[0029] In this embodiment, the rotation and descent of the threaded sleeve 61 outside the external thread 21 can drive the pressure ring 62 to descend, so that the pressure ring 62 tightly abuts against the top of the pin 5, driving the pin 5 to descend, so that the insert block 51 is inserted into the inside of the slot 14.

[0030] The working principle and usage process of this utility model are as follows: First, the operator attaches the connecting column 3 to the bottom of the piston rod 2. The spline 23 of the extension column 22 is inserted into the keyway 32 inside the connecting column 3, thereby connecting the connecting column 3 to the bottom of the piston rod 2. Then, the locking connector 4 is installed at the bottom of the extension column 22. The threaded column 42 is threaded into the threaded hole 24. The tool is used to fit the nut 44, causing the threaded column 42 to rotate and move upward continuously, driving the support plate 41 to move upward. The support plate 41 supports the bottom of the connecting column 3, ensuring the stability of the connection of the connecting column 3 to the outside of the extension column 22. After the bottom end of the piston rod 2 is installed on the connecting column 3, the operator inserts the connecting column 3 into the valve body 1, so that the ear plate 33 is first inserted into the slot 14. Then, the rotation of the connecting column 3 drives the ear plate 33 into the limiting groove 13. Then, the operator rotates the limiting component 6 and uses a tool to clamp the outside of the nut 63, so that the threaded sleeve 61 rotates and descends outside the external thread 21, so that the pressure ring 62 abuts against the top of the convex ring 53, thereby driving the pin 5 to descend, so that the insert block 51 is inserted into the slot 14, thereby achieving the stop of the ear plate 33 in the limiting groove 13, ensuring the stability of the ear plate 33 in the limiting groove 13.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shock absorber wear-resistant valve plate structure, comprising a valve plate body (1), characterized in that: The valve body (1) is detachably connected to a connecting post (3). The connecting post (3) is provided with a detachable piston rod (2). The bottom end of the piston rod (2) is provided with a locking connector (4). The locking connector (4) is used to fix the connecting post (3) outside the bottom end of the piston rod (2). The piston rod (2) is sleeved with a sliding pin (5). The pin (5) is located above the valve body (1) and the connecting post (3). The piston rod (2) is provided with a limit assembly (6).

2. The shock absorber wear-resistant valve plate structure according to claim 1, characterized in that: The valve body (1) has a through hole (11) on its periphery, a core hole (12) at the center of the valve body (1), and a flared opening (15) on the lower surface of the valve body (1).

3. The shock absorber wear-resistant valve plate structure according to claim 2, characterized in that: The valve body (1) has several limiting grooves (13) in the middle and several slots (14) connected to the limiting grooves (13) in the upper part.

4. The shock absorber wear-resistant valve plate structure according to claim 1, characterized in that: The piston rod (2) has an external thread (21) on its outside. The bottom end of the piston rod (2) has an integrally formed extension post (22). The diameter of the extension post (22) is smaller than the diameter of the piston rod (2). The outside of the extension post (22) has a spline (23). The bottom end of the extension post (22) has a threaded hole (24).

5. The shock absorber wear-resistant valve plate structure according to claim 1, characterized in that: The connecting post (3) has a central hole (31) inside, and keyways (32) are opened on both sides of the central hole (31). Several ear plates (33) are fixedly installed on the lower part of the connecting post (3).

6. The shock absorber wear-resistant valve plate structure according to claim 1, characterized in that: The locking connector (4) includes a threaded post (42), a nut (44) is fixedly connected to the bottom end of the threaded post (42), a liner (43) is fixedly installed on the top of the nut (44), a support plate (41) is sleeved on the outside of the threaded post (42), and a number of reinforcing ribs (45) are fixedly provided at the bottom of the support plate (41).

7. The shock absorber wear-resistant valve plate structure according to claim 1, characterized in that: The bottom of the pin (5) is fixedly installed with several insert blocks (51), the middle part of the pin (5) is provided with a sleeve hole (52) with an inner diameter larger than the outer diameter of the piston rod (2), and the top of the pin (5) is fixedly installed with a protruding ring (53).

8. The shock absorber wear-resistant valve plate structure according to claim 1, characterized in that: The limiting component (6) includes a threaded sleeve (61) sleeved on the outside of the piston rod (2), a pressure ring (62) is fixedly installed on the lower outside of the threaded sleeve (61), and a nut (63) is fixedly installed on the upper outside of the threaded sleeve (61).

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