Automobile shock absorber structure with rubber bushing

Abstract

This utility model relates to the field of rubber bushing technology and discloses a car shock absorber structure with a rubber bushing, including: a shock absorber body, with rubber seats connected to both the upper and lower ends of the shock absorber body, and a bushing body disposed between the bottom rubber seat and the shock absorber body; a self-sealing mechanism, located between the bushing body and the shock absorber body, the self-sealing mechanism including a sealing layer fixedly installed on the top of the bushing body, a sealing ring disposed between the sealing layer and the shock absorber body, a limiting component disposed on one side of the sealing ring, a fastening component disposed on the outer wall of the sealing layer, and a positioning component disposed between the sealing layer and the sealing ring; through the setting of the self-sealing mechanism, the sealing layer and the sealing ring form a seal, blocking external impurities and internal oil leakage, the positioning component ensures accurate installation of the sealing ring and avoids weak sealing areas due to misalignment, the limiting component restricts the displacement of the sealing ring under dynamic working conditions, and the fastening component continuously provides clamping force.

Description

Technical Field

[0001] This utility model relates to the field of rubber bushing technology, specifically to a car shock absorber structure with a rubber bushing. Background Technology

[0002] As a key component of the automotive suspension system, the performance of the shock absorber directly affects the comfort and stability of the vehicle. Rubber bushings play an important role in the shock absorber, including connection, buffering, and auxiliary sealing.

[0003] During vehicle operation, the shock absorber needs to maintain a specific working environment. External dust, moisture, and internal oil leakage can significantly affect the shock absorber's damping effect and service life. However, traditional rubber bushings rely on the simple elasticity of the rubber itself to achieve sealing. This method is prone to sealing failure under complex working conditions. The aging and deformation of the rubber will lead to an increase in the sealing gap, allowing external impurities to enter the shock absorber and accelerate component wear. At the same time, internal oil leakage will change the damping characteristics of the shock absorber, reduce the damping effect, and even cause failure. Utility Model Content

[0004] The purpose of this invention is to provide a car shock absorber structure with a rubber bushing, which solves the problem in the prior art that internal oil leakage will change the damping characteristics of the shock absorber, reduce the damping effect, and even cause malfunctions.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A car shock absorber structure with a rubber bushing includes:

[0007] The shock absorber body has rubber seats connected to both its upper and lower ends, and a bushing body is provided between the rubber seats at the bottom and the shock absorber body.

[0008] The self-sealing mechanism is located between the bushing body and the shock absorber body and is used to seal the connection. The self-sealing mechanism includes a sealing layer fixedly installed on the top of the bushing body, a sealing ring provided between the sealing layer and the shock absorber body, a limit component provided on one side of the sealing ring, a fastening component provided on the outer wall of the sealing layer, and a positioning component provided between the sealing layer and the sealing ring for positioning the sealing ring during installation.

[0009] Preferably, the sealing ring has an open-ring structure with an installation groove formed between its two ends. The limiting component includes a limiting block and a positioning block that are fixedly connected to both ends of the sealing ring. Two limiting arc plates are fixedly installed on one side of the limiting block, and a limiting groove for the two limiting arc plates to be inserted is provided on one side of the positioning block.

[0010] Preferably, the fastening assembly includes a clamp disposed on the outer wall of the sealing layer. The outer wall of the clamp has evenly distributed perforated holes, and one side of the clamp has a fastening groove. Two clamping blocks are fixedly installed on one side of the fastening groove. A screw is fixedly installed on one side of one of the clamping blocks. The screw is inserted into the other clamping block. The screw extends to one side of the other clamping block and is screwed with a nut.

[0011] Preferably, the positioning component includes multiple annularly distributed positioning seats fixedly installed inside the sealing layer, and multiple annularly distributed positioning grooves are provided at the bottom of the outer wall of the sealing ring, with the multiple positioning seats matching the multiple positioning grooves.

[0012] Preferably, an mounting block is fixedly installed at the bottom of the shock absorber body, and two support blocks are fixedly installed at the top of the bottom rubber seat. A groove for the mounting block to be inserted is formed between the two support blocks, and a mounting pin is inserted between the two support blocks and the mounting block.

[0013] Preferably, the clamp is made of elastic metal material, and the inner edge of the hollow hole is chamfered and rounded to avoid scratching the outer wall of the sealing layer during installation.

[0014] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0015] 1. This utility model, through the setting of the self-sealing mechanism, forms a seal between the sealing layer and the sealing ring, blocking external impurities and internal oil leakage. The positioning component ensures accurate installation of the sealing ring and avoids weak sealing areas caused by misalignment. The limiting component restricts the displacement of the sealing ring under dynamic working conditions. The fastening component continuously provides clamping force. With the cooperation of multiple layers, even under complex working conditions such as high-frequency vibration and temperature changes, the seal can be stably maintained, effectively solving the problem of "seal failure under complex working conditions" of traditional bushings, greatly improving the internal cleanliness and oil retention rate of the shock absorber, and extending the service life of the shock absorber.

[0016] 2. This utility model achieves "dynamic self-compensation" by utilizing the elasticity of the components and the structural design. The hollow holes of the clamp provide it with elastic deformation space, which can adjust the clamping force according to the deformation of the sealing layer. When the limiting arc plate slides in the limiting groove, it squeezes the sealing ring in the opposite direction, making it fit the sealing surface more tightly. This dynamic adaptation ensures that the sealing performance does not decrease with the deformation of the bushing, continuously ensuring the reliability of the seal and solving the drawback of traditional seals that "deformation leads to failure". Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2This is a structural diagram of the shock absorber body and bushing body of this utility model when disassembled;

[0019] Figure 3 This is a schematic diagram of the self-sealing mechanism of this utility model;

[0020] Figure 4 This is a structural diagram of the self-sealing mechanism of this utility model during disassembly;

[0021] Figure 5 This is a structural diagram of the limiting component of this utility model during disassembly.

[0022] The components include: 1. Shock absorber body; 2. Self-sealing mechanism; 3. Bushing body; 4. Rubber seat; 5. Mounting block; 6. Support block;

[0023] 21. Sealing layer; 22. Sealing ring; 23. Clamp; 24. Hole; 25. Limiting block; 26. Positioning block; 27. Clamping block; 28. Screw; 29. ​​Nut; 210. Positioning seat; 211. Positioning groove; 212. Limiting arc plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] refer to Figure 1 and Figure 2 A shock absorber structure with a rubber bushing includes: a shock absorber body 1, with rubber seats 4 connected to both the upper and lower ends of the shock absorber body 1, and a bushing body 3 disposed between the bottom rubber seat 4 and the shock absorber body 1.

[0026] Furthermore, an installation block 5 is fixedly installed at the bottom of the shock absorber body 1, and two support blocks 6 are fixedly installed at the top of the bottom rubber seat 4. A groove for the installation block 5 to be inserted is formed between the two support blocks 6, and an installation pin is inserted between the two support blocks 6 and the installation block 5. The clamp 23 is made of elastic metal material, and the inner edge of the hollow hole 24 is chamfered and rounded to avoid scratching the outer wall of the sealing layer 21 during installation.

[0027] The mounting block 5 at the bottom of the shock absorber body 1 is inserted into the groove formed by the two support blocks 6 at the top of the bottom rubber seat 4. The three are rigidly fixed by the mounting pin. The rubber seat 4 buffers the vibration transmitted by the shock absorber body 1 through its own elasticity, reducing the bumpy feeling during vehicle driving. The mounting block 5 is connected to the support block 6 by the pin, ensuring the assembly stability of the shock absorber body 1 and the bottom rubber seat 4, avoiding loosening of the connection due to long-term vibration, and providing a stable installation base for the self-sealing mechanism 2.

[0028] refer to Figure 2 , Figure 3 and Figure 4 The self-sealing mechanism 2 is located between the bushing body 3 and the shock absorber body 1 and is used to seal the connection. The self-sealing mechanism 2 includes a sealing layer 21 fixedly installed on the top of the bushing body 3, a sealing ring 22 is provided between the sealing layer 21 and the shock absorber body 1, a limit component is provided on one side of the sealing ring 22, a fastening component is provided on the outer wall of the sealing layer 21, and a positioning component is provided between the sealing layer 21 and the sealing ring 22 to position the sealing ring 22 during installation.

[0029] Furthermore, such as Figure 5 As shown, the sealing ring 22 has an open-loop structure with an installation groove between its two ends. The limiting assembly includes a limiting block 25 and a positioning block 26, which are fixedly connected to both ends of the sealing ring 22. Two limiting arc plates 212 are fixedly installed on one side of the limiting block 25, and a limiting groove for the two limiting arc plates 212 to be inserted into is provided on one side of the positioning block 26. Based on this, the limiting block 25 and the positioning block 26 are arranged in the installation groove on one side of the sealing ring 22, and the two limiting arc plates 212 of the limiting block 25 are inserted into the limiting groove of the positioning block 26 to form a circumferential constraint structure. When the sealing ring 22 is subjected to vibration, When the sealing ring 22 tends to shift, the mating surfaces of the limiting arc plate 212 and the limiting groove will generate reverse friction force, which restricts the radial displacement of the sealing ring 22. This can effectively prevent the sealing ring 22 from rotating circumferentially or shifting radially under dynamic working conditions, and avoid local sealing failure caused by misalignment of the sealing ring 22. The arc structure of the limiting arc plate 212 can generate slight elastic deformation when vibrating, which forms a continuous compressive force on the sealing ring 22, achieving a self-tightening effect of "the greater the vibration, the tighter the seal", reducing the relative friction between the sealing ring 22 and the sealing layer 21, delaying material wear, and extending the service life of the sealing assembly.

[0030] Furthermore, such as Figure 3As shown, the fastening assembly includes a clamp 23 disposed on the outer wall of the sealing layer 21. The outer wall of the clamp 23 has evenly distributed perforated holes 24, and one side of the clamp 23 has a fastening groove. Two clamping blocks 27 are fixedly installed on one side of the fastening groove. A screw 28 is fixedly installed on one side of one clamping block 27, and the screw 28 is inserted into the other clamping block 27. The screw 28 extends to one side of the other clamping block 27 and is screwed with a nut 29. Based on this, the clamp 23 is fitted onto the outer wall of the sealing layer 21, and its evenly distributed perforated holes 24 form an elastic deformation zone; the two clamping blocks 23 on one side of the clamp 23... The clamping block 27 is connected to the nut 29 via the screw 28. Tightening the nut 29 causes the clamp 23 to shrink circumferentially, generating a circumferential pressure on the sealing layer 21. The hollow hole 24 gives the clamp 23 elastic adjustment capability, which can adaptively adjust the clamping force according to the radial deformation of the sealing layer 21 caused by temperature changes or vibration, avoiding rubber fatigue caused by excessive compression. The rigid connection between the screw 28 and the nut 29 ensures that the clamping force of the clamp 23 is stable in the long term, solving the problem of easy loosening of the traditional elastic clamp 23, strengthening the fit between the sealing layer 21 and the shock absorber body 1, and eliminating the weak sealing points caused by assembly gaps.

[0031] Furthermore, such as Figure 4 As shown, the positioning assembly includes multiple annularly distributed positioning seats 210 fixedly installed inside the sealing layer 21, and multiple annularly distributed positioning grooves 211 opened at the bottom of the outer wall of the sealing ring 22. The multiple positioning seats 210 match the multiple positioning grooves 211. Based on this, the multiple positioning seats 210 inside the sealing layer 21 are inserted one-to-one with the positioning grooves 211 at the bottom of the outer wall of the sealing ring 22 to form circumferentially uniformly distributed positioning points, ensuring that the sealing ring 22 is accurately installed in the sealing layer 21, quickly achieving the positioning of the sealing ring 22 during assembly, reducing human operation errors, ensuring the concentricity of the sealing ring 22 and the sealing layer 21, and the interference fit between the positioning seats 210 and the positioning grooves 211 can pre-compress the sealing ring 22 to form the initial sealing pressure, improve the start-up reliability of the sealing system, limit the axial movement of the sealing ring 22, avoid the separation of the sealing ring 22 and the sealing layer 21 due to long-term vibration, and ensure the continuity of the seal.

[0032] The overall working principle of this utility model is as follows:

[0033] The sealing layer 21 is fixedly installed on the top of the bushing body 3, and a sealing ring 22 is provided between it and the shock absorber body 1. When the shock absorber is working, the sealing layer 21 and the sealing ring 22 can prevent external dust and moisture from entering. The sealing ring 22 serves as an auxiliary sealing element, filling any small gaps that may exist between the sealing layer 21 and the shock absorber body 1, thus greatly improving the sealing effect.

[0034] A positioning component is provided between the sealing layer 21 and the sealing ring 22 for precise positioning of the sealing ring 22 during installation. The positioning component includes a positioning seat 210 fixed inside the sealing layer 21 and distributed in a ring, and a positioning groove 211 formed at the bottom of the outer wall of the sealing ring 22 and matching thereto. During the assembly stage, when the sealing ring 22 is installed onto the sealing layer 21, the positioning seat 210 is inserted into the positioning groove 211. This ensures that the circumferential position of the sealing ring 22 on the sealing layer 21 is accurate, avoiding localized weak sealing due to installation misalignment. On the other hand, during the positioning process, the sealing ring 22 and the sealing layer 21 are pressed together, forming a pre-sealed state in advance, providing a basic guarantee for subsequent sealing.

[0035] The limiting component is used to limit the displacement of the sealing ring 22 during operation and improve sealing stability. It includes an installation groove on one side of the sealing ring 22, in which corresponding limiting blocks 25 and positioning blocks 26 are set. Both are fixedly connected to the sealing ring 22. Two limiting arc plates 212 are fixed on one side of the limiting block 25, and a limiting groove for the limiting arc plates 212 to be inserted is opened on one side of the positioning block 26. Therefore, when the shock absorber is in dynamic working condition, such as when the vehicle encounters bumps or turns and vibrates, the shock absorber body 1 and bushing body 3 will have relative displacement and vibration. The sealing ring 22 tends to move outward and deform. At this time, the limiting block 25 and the positioning block 26 limit the displacement of the sealing ring 22 through the cooperation of the limiting arc plates 212 and the limiting groove. During the vibration, the limiting arc plates 212 slide slightly in the limiting groove. Due to the structural characteristics of the arc plates, they will generate reverse extrusion force on the sealing ring 22, which will make the sealing ring 22 fit more tightly against the sealing layer 21 and the shock absorber body 1, thus strengthening the sealing reliability.

[0036] The fastening assembly is located on the outer wall of the sealing layer 21 and is used to continuously fasten the connection between the sealing layer 21 and the shock absorber body 1. It includes a clamp 23, perforated holes 24, a clamping block 27, a screw 28, and a nut 29. The clamp 23 is fitted onto the outer wall of the sealing layer 21. The evenly distributed perforated holes 24 on the clamp 23 ensure structural strength while utilizing the elastic deformation space provided by the perforations to accommodate the minor deformation of the sealing layer 21 caused by vibration. Furthermore, the perforated holes 24 also reduce the weight of the clamp 23. When the shock absorber is working, the clamp 23 elastically encircles the sealing layer 21, providing a continuous clamping force. If the sealing layer 21 expands or contracts radially due to vibration, temperature changes, etc., the clamp 23 can compensate through the elasticity of the perforated holes 24. The clamping force is dynamically adjusted to ensure that the clamping force remains in close contact with the sealing layer 21. Meanwhile, in the fastening groove on one side of the clamp 23, two clamping blocks 27, together with the screw 28 and nut 29, further reinforce the clamping force. The screw 28 is fixed to one clamping block 27. After the other clamping block 27 is inserted, the nut 29 is screwed to the protruding end of the screw 28. By tightening the nut 29, the two clamping blocks 27 are brought closer together, causing the clamp 23 to tighten circumferentially, thus strengthening the clamping force on the sealing layer 21. Under dynamic working conditions, even if the sealing layer 21 tends to expand or shift outward, the clamping force of the clamp 23, combined with its own elasticity, can limit the excessive deformation of the sealing layer 21, ensuring the fit between the sealing layer 21 and the shock absorber body 1 and the sealing ring 22, and continuously maintaining the sealing performance.

[0037] 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 and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car shock absorber structure with a rubber bushing, characterized in that, include: The shock absorber body (1) is connected to rubber seats (4) at both the upper and lower ends of the shock absorber body (1), and a bushing body (3) is provided between the rubber seat (4) at the bottom and the shock absorber body (1). The self-sealing mechanism (2) is located between the bushing body (3) and the shock absorber body (1) and is used to seal the connection. The self-sealing mechanism (2) includes a sealing layer (21) fixedly installed on the top of the bushing body (3). A sealing ring (22) is provided between the sealing layer (21) and the shock absorber body (1). A limiting component is provided on one side of the sealing ring (22). A fastening component is provided on the outer wall of the sealing layer (21). A positioning component is provided between the sealing layer (21) and the sealing ring (22) to position the sealing ring (22) during installation.

2. The automotive shock absorber structure with a rubber bushing according to claim 1, characterized in that: The sealing ring (22) has an open ring structure with an installation groove between its two ends. The limiting component includes a limiting block (25) and a positioning block (26) that are fixedly connected to both ends of the sealing ring (22). Two limiting arc plates (212) are fixedly installed on one side of the limiting block (25), and a limiting groove for the two limiting arc plates (212) to be inserted is provided on one side of the positioning block (26).

3. The automotive shock absorber structure with a rubber bushing according to claim 1, characterized in that: The fastening assembly includes a clamp (23) disposed on the outer wall of the sealing layer (21). The outer wall of the clamp (23) is provided with evenly distributed perforated holes (24), and a fastening groove is provided on one side of the clamp (23). Two clamping blocks (27) are fixedly installed on one side of the fastening groove. A screw (28) is fixedly installed on one side of one of the clamping blocks (27). The screw (28) is inserted into the other clamping block (27). The screw (28) extends to one side of the other clamping block (27) and is screwed with a nut (29).

4. The automotive shock absorber structure with a rubber bushing according to claim 1, characterized in that: The positioning component includes multiple annularly distributed positioning seats (210) fixedly installed on the inner side of the sealing layer (21), and multiple annularly distributed positioning grooves (211) are opened at the bottom of the outer wall of the sealing ring (22), and the multiple positioning seats (210) match the multiple positioning grooves (211).

5. The automotive shock absorber structure with a rubber bushing according to claim 1, characterized in that: The bottom of the shock absorber body (1) is fixedly installed with an installation block (5), and two support blocks (6) are fixedly installed on the top of the bottom rubber seat (4). A groove for the installation block (5) is formed between the two support blocks (6), and an installation pin is inserted between the two support blocks (6) and the installation block (5).

6. The automotive shock absorber structure with a rubber bushing according to claim 3, characterized in that: The clamp (23) is made of elastic metal material, and the inner edge of the hollow hole (24) is chamfered and rounded to avoid scratching the outer wall of the sealing layer (21) during installation.

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