Multifunctional pressure relief cover for automobile shock absorber

CN224800809UActive Publication Date: 2026-09-25KUNSHAN MINGRUIXUAN METAL TECH CO LTD
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Patent Information

Application Number
CN202521537360.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-22
Publication Date
2026-09-25
Estimated Expiration
2035-07-22

AI Technical Summary

Benefits of technology

[0014]1.本实用新型通过强化支撑机构的设置,提升盖体抗变形能力,配合耐油丁腈材质的梯形截面橡胶圈,在增强支撑性能的同时强化密封效果,避免压力泄漏,使用中,能稳定承受减震器高频振动与压力波动,保障压力调节精度,后续使用时,因材质耐磨损、抗腐蚀,减少维护频次,延长减压盖使用寿命,间接提升汽车减震系统的长期可靠性;

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Abstract

The utility model discloses a multi -functional for car shock absorber's pressure relief cover relates to pressure relief cover technical field, including cover and reinforced support mechanism, the inner surface fixed connection of cover has reinforced support mechanism, and reinforced support mechanism includes the metal framework fixedly connected in the inside position of cover, the outer surface fixed connection of metal framework has carbon fiber reinforced layer, and cover fixedly connected has the reinforcing rib, the top fixed connection of cover has the rubber ring, and metal framework is high -strength aluminum alloy material, and the grid is distributed, and carbon fiber reinforced layer and the skeleton close adhesion, and the reinforcing rib is radiately welded in cover, and the rubber ring is oil -resistant nitrile material. Compared with the pressure relief cover of ordinary car shock absorber of current, make rigidity promote, improve the anti -cracking ability, guarantee the leakproofness under long -term pressure, prolong the life, and add new lubrication and dustproof function, reduce the use of auxiliary components.
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Description

Technical Field

[0001] This utility model relates to the field of pressure relief cover technology, specifically a multifunctional pressure relief cover for automotive shock absorbers. Background Technology

[0002] A pressure relief cover is a cover component installed on pressure-bearing equipment to balance internal pressure and ensure stable operation of the equipment. Through structural design, it achieves functions such as pressure regulation and sealing protection. It is widely used in hydraulic, pneumatic and other systems. The pressure relief cover used in automobile shock absorbers is a key component of the shock absorber. It is adapted to the working environment of the shock absorber and needs to withstand high-frequency vibration and temperature changes. Existing pressure relief covers for automobile shock absorbers have certain defects.

[0003] For example, a shock absorber pressure-reducing cover device for an automobile suspension, application number CN202323561743.X, relates to the field of automobile shock absorption technology. It includes a fixed frame, a spherical component slidably connected to the outer wall of the top of the fixed frame, a shock-absorbing sleeve fixedly connected inside the fixed frame, a cylinder fixedly connected inside the shock-absorbing sleeve, a movable component movably connected to the outer wall of the spherical component, shock-absorbing rubber fixedly connected between the movable component and the fixed frame, and a mounting seat slidably connected to the top of the movable component. This utility model, through the arrangement of the movable component and the spherical component, the slidable connection between the spherical component and the fixed frame, and the movable connection between the spherical component and the movable component, allows the angle of the movable component to change when subjected to forces in other directions, adapting to those forces and preventing bending of internal parts of the pressure-reducing cover device. This reduces the possibility of shock absorption failure and improves the service life of the pressure-reducing cover. However, the pressure relief cover of the car shock absorber is prone to deformation or even cracking under long-term pressure, which leads to a decrease in sealing performance and affects the shock absorption effect. In addition, it only has the function of pressure relief and cannot realize the additional functions such as dust prevention and lubrication at the top of the shock absorber, so additional auxiliary components are required.

[0004] Therefore, in view of this, we have studied and improved the existing structure to propose a multifunctional pressure relief cover for automobile shock absorbers. Utility Model Content

[0005] The purpose of this invention is to provide a multifunctional pressure relief cover for automotive shock absorbers to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional pressure relief cover for an automotive shock absorber, comprising a cover body and a reinforcing support mechanism, wherein the reinforcing support mechanism is fixedly connected to the inner surface of the cover body, and the reinforcing support mechanism includes a metal frame fixedly connected to the inside of the cover body, a carbon fiber reinforcement layer is fixedly connected to the outer surface of the metal frame, and a reinforcing rib is fixedly connected to the cover body, and a rubber ring is fixedly connected to the top of the cover body.

[0007] Preferably, the top of the cover is fixedly connected to a mounting head, and the mounting head is provided with a functional expansion mechanism inside.

[0008] Preferably, the functional expansion mechanism includes a slot located inside the mounting head, and a double filter screen is engaged inside the slot. An oil injection nozzle is fixedly connected to one side of the cover, and a grease storage cavity is fixedly connected to one end of the oil injection nozzle.

[0009] Preferably, the outer surface of the mounting head is threaded with a dust cover, and the inner surface of the cover is threaded with a bolt.

[0010] Preferably, a bearing is fixedly connected to the bottom of the dust cover, and a spring seat is fixedly connected to the bottom of the bearing.

[0011] Preferably, a double-layer spring pad is fixedly connected to the bottom of the spring seat, and a fluororubber sealing ring is fixedly connected to the inner wall of the double-layer spring pad.

[0012] Preferably, a heat insulation gasket is fixedly connected to one side of the fluororubber sealing ring, and a telescopic protective sleeve is fixedly connected to the bottom of the double-layer spring gasket, with a fixing buckle fixedly connected to the outer surface of the telescopic protective sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model enhances the deformation resistance of the cover by strengthening the support mechanism. Combined with the trapezoidal cross-section rubber ring made of oil-resistant nitrile material, it enhances the sealing effect while strengthening the support performance, preventing pressure leakage. During use, it can stably withstand the high-frequency vibration and pressure fluctuation of the shock absorber, ensuring the accuracy of pressure regulation. In subsequent use, due to the wear-resistant and corrosion-resistant material, the maintenance frequency is reduced, the service life of the pressure relief cover is extended, and the long-term reliability of the automotive shock absorption system is indirectly improved.

[0015] 2. This utility model achieves dual protection of "filtration and anti-fouling + lubrication protection" through the setting of the functional expansion mechanism. Combined with the sealing design, it improves durability and reduces failures caused by impurities clogging or insufficient lubrication. When linked with the reinforced support mechanism, the stable structure provided by the support mechanism creates a stable working environment for the functional expansion mechanism, while the clean space ensured by the filter reduces wear on the support components. The two work together to extend the overall life of the pressure reducing cover and ensure long-term efficient operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional disassembled structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the reinforcing support mechanism 2 of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the functional expansion mechanism 4 of this utility model.

[0020] In the diagram: 1. Cover; 2. Reinforced support mechanism; 201. Metal frame; 202. Carbon fiber reinforcement layer; 203. Reinforcing rib; 204. Rubber ring; 3. Mounting head; 4. Functional expansion mechanism; 401. Slot; 402. Double filter screen; 403. Oil nozzle; 404. Grease storage chamber; 5. Dust cover; 6. Bolt; 7. Bearing; 8. Spring seat; 9. Double spring pad; 10. Fluororubber sealing ring; 11. Heat insulation gasket; 12. Telescopic protective sleeve; 13. Fixing buckle. Detailed Implementation

[0021] 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.

[0022] like Figures 1-2 As shown, a multifunctional pressure-reducing cover for automotive shock absorbers includes a cover body 1 and a reinforcing support mechanism 2. The reinforcing support mechanism 2 is fixedly connected to the inner surface of the cover body 1, and the reinforcing support mechanism 2 includes a metal frame 201 fixedly connected to the inside of the cover body 1. A carbon fiber reinforcement layer 202 is fixedly connected to the outer surface of the metal frame 201, and reinforcing ribs 203 are fixedly connected to the cover body 1. A rubber ring 204 is fixedly connected to the top of the cover body 1. The metal frame 201 is made of high-strength aluminum alloy and is distributed in a grid pattern. The carbon fiber reinforcement layer 202 is tightly fitted to the frame, and the reinforcing ribs 203 are radially welded to the cover body 1. The rubber ring 204 is made of oil-resistant nitrile butadiene and has a trapezoidal cross-section, which greatly improves the deformation resistance of the cover body 1, enhances the sealing and support performance, and extends the service life.

[0023] like Figure 3As shown, the top of the cover 1 is fixedly connected to the mounting head 3, and the mounting head 3 is provided with a functional expansion mechanism 4. The functional expansion mechanism 4 includes a slot 401 opened inside the mounting head 3, and a double filter screen 402 is engaged inside the slot 401. An oil filling nozzle 403 is fixedly connected to one side of the cover 1, and one end of the oil filling nozzle 403 is fixedly connected to a grease storage cavity 404. The inner wall of the slot 401 is provided with anti-slip texture. The double filter screen 402 is made of stainless steel. The oil filling nozzle 403 is equipped with a push-type one-way valve and connects to the grease storage cavity 404 through a built-in micro grease delivery tube to deliver the grease inside the grease storage cavity 404 to the inside of the cover 1, so as to prevent the shock absorber inside the cover 1 from becoming dull.

[0024] Furthermore, the outer surface of the mounting head 3 is threaded with a dust cover 5, and the inner surface of the cover body 1 is threaded with a bolt 6. The bottom of the dust cover 5 is fixedly connected with a bearing 7, and the bottom of the bearing 7 is fixedly connected with a spring seat 8. The dust cover 5 is made of ABS material, and its internal thread matches that of the mounting head 3 to prevent dust from entering the interior of the cover body 1. The bolt 6 is made of high-strength carbon steel with a galvanized surface for rust prevention. The bearing 7 is a sealed bearing 7. The spring seat 8 contains a compression spring for cushioning and shock absorption, enhancing overall stability.

[0025] Furthermore, a double-layer spring pad 9 is fixedly connected to the bottom of the spring seat 8, and a fluororubber sealing ring 10 is fixedly connected to the inner wall of the double-layer spring pad 9. A heat insulation gasket 11 is fixedly connected to one side of the fluororubber sealing ring 10, and a telescopic protective sleeve 12 is fixedly connected to the bottom of the double-layer spring pad 9. A fixing buckle 13 is fixedly connected to the outer surface of the telescopic protective sleeve 12. The double-layer spring pad 9 is made of steel, the fluororubber sealing ring 10 is temperature resistant from -20 to 200℃, and the heat insulation gasket 11 is made of mica to achieve a high-temperature sealing effect and improve anti-fouling and wear resistance. The telescopic protective sleeve 12 is made of corrugated tubular silicone. The fixing buckle 13 connects the telescopic protective sleeve 12 to the shock absorber to enhance the overall shock resistance and protection capabilities.

[0026] Working Principle: When using this multi-functional pressure relief cover for automotive shock absorbers, the components are first fixed by bolts 6, the bearings 7 and spring seats 8 buffer vibration, the double-layer spring pads 9 further reduce vibration, and the fluororubber sealing rings 10 enhance the seal. During the operation of the shock absorber, the cover body 1 provides basic strength through the reinforced support mechanism 2, the metal skeleton 201 and the carbon fiber reinforcement layer 202 work together to bear the load, the reinforcing ribs 203 disperse stress, the rubber rings 204 provide initial sealing, and the mounting head 3 and the dust cover 5 cooperate to form external protection. Then, when the lubrication effect of the shock absorber weakens, the functional expansion mechanism 4 is activated, and the grease nipple 403 delivers the grease in the grease storage chamber 404 to the inside of the cover body 1 and then flows to the outer surface of the shock absorber. At the same time, the double filter screen 402 filters impurities. Finally, the heat insulation pad 11 blocks heat, and the telescopic protective sleeve 12 protects the internal structure through the fixing buckle 13. All components work together to achieve pressure reduction, vibration reduction, sealing and protection, ensuring the stable operation of the shock absorber. This is the working principle of this multi-functional pressure relief cover for automotive shock absorbers.

Claims

1. A multifunctional pressure relief cover for an automotive shock absorber, comprising a cover body (1) and a reinforcing support mechanism (2), characterized in that, The inner surface of the cover (1) is fixedly connected to a reinforcing support mechanism (2), and the reinforcing support mechanism (2) includes a metal frame (201) fixedly connected to the inside of the cover (1). The outer surface of the metal frame (201) is fixedly connected to a carbon fiber reinforcement layer (202), and the cover (1) is fixedly connected to a reinforcing rib (203). The top of the cover (1) is fixedly connected to a rubber ring (204).

2. A multifunctional pressure-reducing cover for an automotive shock absorber according to claim 1, characterized in that, The top of the cover (1) is fixedly connected to a mounting head (3), and the mounting head (3) is provided with a functional expansion mechanism (4).

3. A multifunctional pressure-reducing cover for an automotive shock absorber according to claim 2, characterized in that, The functional expansion mechanism (4) includes a slot (401) located inside the mounting head (3), and a double filter screen (402) is snapped into the inside of the slot (401). An oil nozzle (403) is fixedly connected to one side of the cover (1), and a grease storage cavity (404) is fixedly connected to one end of the oil nozzle (403).

4. A multifunctional pressure-reducing cover for an automotive shock absorber according to claim 3, characterized in that, The outer surface of the mounting head (3) is threaded with a dust cover (5), and the inner surface of the cover (1) is threaded with a bolt (6).

5. A multifunctional pressure-reducing cover for an automotive shock absorber according to claim 4, characterized in that, The bottom of the dust cover (5) is fixedly connected to a bearing (7), and the bottom of the bearing (7) is fixedly connected to a spring seat (8).

6. A multifunctional pressure-reducing cover for an automotive shock absorber according to claim 5, characterized in that, The bottom of the spring seat (8) is fixedly connected to a double-layer spring pad (9), and the inner wall of the double-layer spring pad (9) is fixedly connected to a fluororubber sealing ring (10).

7. A multifunctional pressure-reducing cover for an automotive shock absorber according to claim 6, characterized in that, A heat insulation pad (11) is fixedly connected to one side of the fluororubber sealing ring (10), and a telescopic protective sleeve (12) is fixedly connected to the bottom of the double-layer spring pad (9). A fixing buckle (13) is fixedly connected to the outer surface of the telescopic protective sleeve (12).

Citation Information

Patent Citations

  • Decompression cover device of automobile suspension shock absorber

    CN221838789U