Shock absorber top rubber with limiting structure

Abstract

The shock absorber top rubber with the limiting structure comprises an outer pipe, a rubber block and a lining, the lining and the rubber block are integrally formed through rubber injection, and the rubber block is wrapped by the outer pipe. A damping groove is formed in one side of the rubber block, and a damping pit is formed in the other side of the rubber block; a hydraulic containing cavity for injecting hydraulic oil is defined by the outer wall V-shaped hydraulic groove and the outer pipe, a backflow containing cavity is defined by the backflow groove and the outer pipe, and the two containing cavities are communicated through the arc-shaped flow channel. A sealing ring is arranged on the rubber block near the outer pipe port; and a stepped rubber buffer block is inserted into a clamping groove in the peripheral wall of the bushing, and the end face extends into the damping groove. Multi-stage buffering is achieved through hydraulic buffering and collision of the positioning grooves and the rubber buffering blocks, the problems that traditional top rubber is insufficient in buffering, prone to breakage and low in installation efficiency are solved, and the top rubber is suitable for automobile shock absorbers.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive shock absorber accessories, specifically to a shock absorber top rubber with a limiting structure. Background Technology

[0002] Shock absorber top mounts are crucial components of automotive damping systems, primarily used to buffer irregular vibrations transmitted from the shock absorbers to the vehicle body. Existing shock absorber top mounts mostly use block-shaped rubber structures, relying solely on the rubber's own elasticity for cushioning. Under sudden, intense vibrations, insufficient cushioning can easily lead to breakage of the bushing or shock absorber connection. Furthermore, traditional top mounts lack limiting structures, requiring additional positioning during installation, resulting in low installation efficiency. Therefore, there is an urgent need for a shock absorber top mount that combines high-efficiency cushioning, breakage prevention, and convenient installation. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to solve the problems of insufficient cushioning capacity, easy breakage, and low installation efficiency of existing shock absorber top rubber, and to provide a shock absorber top rubber with a limiting structure, excellent cushioning effect and convenient installation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a shock absorber top adhesive with a limiting structure, comprising an outer tube, a rubber block, and a bushing, wherein the bushing and the rubber block are integrally molded with adhesive, and the outer tube wraps around the outside of the rubber block; characterized in that:

[0005] The upper and lower end faces of the rubber block are each evenly distributed with at least two positioning grooves.

[0006] The rubber block has a straight shock-absorbing groove on one side and a shock-absorbing pit on the other end face.

[0007] The designed hydraulic damping structure is as follows: the outer wall of the rubber block is provided with a "V" shaped hydraulic groove, which, together with the inner wall of the outer tube, forms a hydraulic cavity filled with hydraulic oil. The outer wall of the rubber block is also provided with a return groove, which, together with the inner wall of the outer tube, forms a return cavity. The outer wall of the rubber block is provided with an arc-shaped flow channel, which connects the hydraulic cavity and the return cavity. The rubber block is provided with an annular sealing ring near the port of the outer tube, which seals against the inner wall of the outer tube.

[0008] The bushing has a groove extending along its length on its peripheral wall, with the groove opening facing the shock-absorbing groove; a rubber buffer block is inserted into the groove, the cross-section of the rubber buffer block is stepped, and its end face passes through the groove opening and is placed in the shock-absorbing groove.

[0009] The included angle of the "V"-shaped hydraulic groove is 60° to 90°.

[0010] The stepped cross-sectional width of the rubber buffer block decreases from the root to the end.

[0011] The number of positioning grooves is 2 to 4, and they are evenly distributed on the upper and lower end faces of the rubber block.

[0012] The sealing ring has a rectangular cross-section with a width of 2-4 mm and is interference-fitted with the inner wall of the outer tube.

[0013] The beneficial effects of this utility model are:

[0014] 1. The positioning grooves on the upper and lower end faces of the rubber block enable quick positioning during installation, preventing misalignment and improving installation efficiency;

[0015] 2. The damping groove and damping recess work together to increase the vibration contact area; the "V" shaped hydraulic groove, flow channel and return cavity form a hydraulic buffer structure. When the rubber block is compressed and vibrates, the hydraulic oil flows through the flow channel between the hydraulic cavity and the return cavity to absorb vibration energy, significantly improve the buffer performance and avoid breakage caused by hard impact.

[0016] 3. The stepped rubber buffer block on the bushing is inserted into the damping groove. During extreme vibration, it can collide with the inner wall of the damping groove to further absorb impact energy and enhance impact resistance.

[0017] 4. The annular sealing ring prevents hydraulic oil leakage and ensures the long-term effectiveness of the hydraulic buffer structure.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a perspective view of a specific embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional view of a specific embodiment of the present utility model;

[0021] Figure 3 This is a perspective view of the rubber block in a specific embodiment of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1-Outer tube; 2-Rubber block; 3-Bushing; 4-Positioning groove; 5-Shock-absorbing groove; 6-Shock-absorbing recess; 7-“V”-shaped hydraulic groove; 8-Hydraulic cavity; 9-Return groove; 10-Return cavity; 11-Flow channel; 12-Sealing ring; 13-Slot; 14-Rubber buffer block. Detailed Implementation

[0023] The present invention will be described in detail below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention.

[0024] like Figure 1 — Figure 3 As shown, this embodiment discloses a shock absorber top adhesive with a limiting structure, including an outer tube 1, a rubber block 2 and a bushing 3. The bushing 3 and the rubber block 2 are integrally formed by a glue injection process, and the outer tube 1 is wrapped around the outside of the rubber block 2.

[0025] The upper and lower end faces of the rubber block 2 are each evenly distributed with four positioning grooves 4 (the number can be adjusted according to requirements). During installation, these grooves mate with the positioning bosses of the vehicle body or shock absorber to prevent misalignment. The left side of the rubber block 2 has a through-hole damping groove 5 (hollowed-out design), and the right end face has a damping recess 6 to increase the contact buffer area with the shock absorber or vehicle body.

[0026] The outer wall of the rubber block 2 is provided with 4 "V" shaped hydraulic grooves 7. Each hydraulic groove 7 and the inner wall of the outer tube 1 form a hydraulic cavity 8, which is filled with hydraulic oil. The outer wall of the rubber block 2 is also provided with a return groove 9, which, together with the inner wall of the outer tube 1, forms a return cavity 10. The hydraulic grooves 7 and the return grooves 9 are connected by an arc-shaped flow channel 11 (the flow channel width is 3mm). When the rubber block 2 is compressed and vibrates, the hydraulic oil flows from the hydraulic cavity 8 into the return cavity 10 through the flow channel 11, and the vibration energy is absorbed by the damping effect of the liquid flow.

[0027] A ring-shaped sealing ring 12 (made of the same material as the rubber block) is provided near the upper end of the outer tube 1 on the rubber block 2. It is press-fitted with the inner wall of the outer tube 1 to prevent hydraulic oil leakage.

[0028] The bushing 3 has two slots 13 extending along its length on its peripheral wall, with the openings of the slots 13 facing the damping groove 5. Each slot 13 has a stepped rubber buffer block 14 (the width decreases from the root to the end) inserted into it. The end of the rubber buffer block 14 passes through the opening of the slot 13 and is placed in the damping groove 5. During extreme vibration, the rubber buffer block 14 can collide with the inner wall of the damping groove 5 to further buffer the impact.

[0029] By adopting the above technical solution, the following technical effects can be achieved:

[0030] 1. The positioning grooves on the upper and lower end faces of the rubber block enable quick positioning during installation, preventing misalignment and improving installation efficiency;

[0031] 2. The damping groove and damping recess work together to increase the vibration contact area; the "V" shaped hydraulic groove, flow channel and return cavity form a hydraulic buffer structure. When the rubber block is compressed and vibrates, the hydraulic oil flows through the flow channel between the hydraulic cavity and the return cavity to absorb vibration energy, significantly improve the buffer performance and avoid breakage caused by hard impact.

[0032] 3. The stepped rubber buffer block on the bushing is inserted into the damping groove. During extreme vibration, it can collide with the inner wall of the damping groove to further absorb impact energy and enhance impact resistance.

[0033] 4. The annular sealing ring prevents hydraulic oil leakage and ensures the long-term effectiveness of the hydraulic buffer structure.

Claims

1. A shock absorber top adhesive with a limiting structure, comprising an outer tube (1), a rubber block (2), and a bushing (3), wherein the bushing (3) and the rubber block (2) are integrally molded with adhesive, and the outer tube (1) is wrapped around the outside of the rubber block (2); characterized in that: The rubber block (2) has at least two positioning grooves (4) evenly distributed on its upper and lower end faces respectively; a straight shock-absorbing groove (5) is provided on one side of the rubber block (2), and a shock-absorbing pit (6) is provided on the other end face; a slot (13) extending along its length is provided on the peripheral wall of the bushing (3), and the opening of the slot (13) faces the shock-absorbing groove (5); a rubber buffer block (14) is inserted into the slot (13), the cross-section of the rubber buffer block (14) is stepped, and its end face passes through the opening of the slot (13) and is placed in the shock-absorbing groove (5); a hydraulic shock-absorbing structure is provided between the rubber block (2) and the outer tube (1).

2. The top adhesive of the shock absorber with limiting structure according to claim 1, characterized in that: The hydraulic damping structure includes a "V"-shaped hydraulic groove (7) on the outer wall of the rubber block (2), the hydraulic groove (7) and the inner wall of the outer tube (1) forming a hydraulic cavity (8), the hydraulic cavity (8) being filled with hydraulic oil; the outer wall of the rubber block (2) is also provided with a return groove (9), the return groove (9) and the inner wall of the outer tube (1) forming a return cavity (10); the outer wall of the rubber block (2) is provided with an arc-shaped flow channel (11), the flow channel (11) connecting the hydraulic cavity (8) and the return cavity (10); the rubber block (2) is provided with an annular sealing ring (12) near the port of the outer tube (1), the sealing ring (12) sealingly engaging with the inner wall of the outer tube (1).

3. The top adhesive of the shock absorber with limiting structure according to claim 2, characterized in that: The included angle of the "V"-shaped hydraulic groove (7) is 60° to 90°.

4. The top adhesive of the shock absorber with limiting structure according to claim 1, characterized in that: The stepped cross-sectional width of the rubber buffer block (14) decreases from the root to the end.

5. The top adhesive of the shock absorber with limiting structure according to claim 1, characterized in that: The number of positioning grooves (4) is 2 to 4, and they are evenly distributed on the upper and lower end faces of the rubber block (2).

6. The top adhesive of the shock absorber with limiting structure according to claim 2, characterized in that: The sealing ring (12) has a rectangular cross-section with a width of 2-4 mm and is interference-fitted with the inner wall of the outer tube (1).

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