Sealing structure of damper of shock absorber
By designing a sealing structure including lubricating chutes and sustained release cotton in shock absorbers and dampers, the problems of oil seals are solved, and higher sealing and service life are achieved.
Patent Information
- Application Number
- CN202421213972.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The oil seals in existing shock absorbers and dampers are prone to dryness during use, resulting in increased friction and wear of the oil seal, which in turn leads to leakage of lubricating oil products and gases.
A shock absorber damper seal structure is designed, including a circular oil seal body, an internal sliding sleeve, a lubricating chute, an oil filling chamber, a sustained release cotton, a filter mesh and a seal ring. Through the design of the lubricating chute and a sustained release cotton, the piston and the sliding sleeve are kept lubricated to prevent drying and wear.
It effectively increases the sealing property, prevents lubricating oil and gas leakage, extends the service life of the oil seal, and avoids wear problems caused by increased friction.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shock absorber dampers, in particular to a sealing structure of a shock absorber damper. Background Art
[0002] Shock absorbers are used to suppress the shock caused by the spring rebounding after absorbing the shock and the impact from the road surface, while dampers are devices that provide resistance to movement and consume movement energy.
[0003] In the prior art, shock absorbers and dampers are widely used in aerospace, aviation, military, firearms, automobile and other industries. Shock absorbers and dampers can effectively reduce vibration and dissipate energy. The existing shock absorbers and dampers use a sealing structure, that is, an oil seal. The oil seal is used to prevent the leakage of lubricating oil and gas of the shaft during the reciprocating motion of the shaft. The oil seal is mainly used between the piston and the tube. However, during the use of the existing oil seal, the inner side of the oil seal reciprocates with the piston. Over time, the inner side of the oil seal is prone to dryness. Once the inner side of the oil seal is dry, the friction between the piston and the oil seal increases. Once the friction increases, the oil seal will be worn. Once the oil seal is worn, the lubricating oil and gas in the tube will leak. Therefore, we propose a sealing structure for a shock absorber damper. Utility Model Content
[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art. Shock absorbers and dampers are widely used in aerospace, aviation, military industry, firearms, automobiles and other industries. Shock absorbers and dampers can effectively reduce vibration and dissipate energy. The existing shock absorbers and dampers use a sealing structure, that is, an oil seal. The oil seal is used to prevent the lubricating oil and gas of the shaft from leaking during the reciprocating motion of the shaft. The oil seal is mainly used between the piston and the pipe. However, during the use of the existing oil seal, the inner side of the oil seal reciprocates with the piston. Over a long period of time, the inner side of the oil seal is prone to dryness. Once the inner side of the oil seal is dry, the friction between the piston and the oil seal will increase. Once the friction increases, the oil seal will be worn. Once the oil seal is worn, the lubricating oil and gas in the pipe will leak.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A shock absorber damper sealing structure includes a circular oil seal body, a circular sliding sleeve with an outer diameter consistent with the inner diameter of the oil seal body is installed inside the oil seal body, a lubrication groove is opened on the inner side of the sliding sleeve, and then an oil injection cavity is opened inside the sliding sleeve, and then a first slow-release cotton is installed in a circular shape inside the oil injection cavity and on the inner side of the lubrication groove, and a filter net with an inner diameter consistent with the outer diameter of the first slow-release cotton is installed outside the first slow-release cotton and inside the oil injection cavity, and then a second slow-release cotton with an inner diameter consistent with the outer diameter of the filter net is installed inside the oil injection cavity.
[0007] As a preferred solution of the utility model, a circular oil filling hole is opened on the top of the sliding sleeve, and a sealing cover is installed inside the oil filling hole, and the sealing cover is snap-connected with the oil filling hole.
[0008] As a preferred solution of the utility model, a sealing rubber ring is sleeved on the outer periphery of the sealing cover, and a removal strip with arc-shaped ends is installed on the top of the sealing cover, and the sealing rubber ring is made of rubber material.
[0009] As a preferred solution of the utility model, a cylindrical filter cartridge is installed at the bottom of the oil filling hole and inside the oil filling cavity, and a filter layer is filled on the inner side of the filter cartridge, and the filter layer is made of filter cotton material.
[0010] As a preferred solution of the utility model, a circular annular spring is installed inside the oil seal body, and a circle of flexible rubber ring is sealed and connected to the periphery of the annular spring and located at the periphery of the oil seal body. The flexible rubber ring is made of silicone material.
[0011] As a preferred solution of the utility model, a circular sealing ring is also installed at the bottom of the oil seal body, and the sealing ring is made of rubber material.
[0012] The technical effect of adopting the above further solution is that the sealing performance can be effectively increased by setting the sealing ring, thereby preventing the leakage of lubricating oil and gas in the pipe.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] In the utility model, through the provision of the lubrication groove, the lubrication groove can effectively make the lubricating oil in the oil filling chamber flow out, thereby lubricating the contact surface between the piston and the sliding sleeve on the inner side of the sliding sleeve, and the contact surface is prevented from drying and the friction force is increased through lubrication, which can effectively avoid the wear of the sliding sleeve, and the first slow-release cotton and the second slow-release cotton can make the lubricating oil slowly slide out from the inside of the oil filling chamber, so as to ensure that the lubricating oil in the oil filling chamber can be used for a long time, and the lubricating oil can be effectively filtered through the filter screen, the filter cylinder and the filter layer, and the impurities in the lubricating oil are prevented from entering the periphery of the piston, and the push of the flexible rubber ring by the annular spring can make the fixation between the oil seal body and the tube more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the sealing ring structure of the utility model;
[0017] Figure 3 This is a schematic diagram of the internal planar structure of the sliding sleeve of the utility model;
[0018] Figure 4 It is a schematic diagram of the internal planar structure of the oil seal body of the utility model.
[0019] Legend: 1. Oil seal body; 11. Annular spring; 12. Flexible rubber ring; 13. Sealing ring; 2. Sleeve; 21. Oil filling hole; 22. Sealing cover; 23. Sealing rubber ring; 24. Take-out strip; 25. Filter cartridge; 26. Filter layer; 3. Lubrication groove; 4. Oil filling chamber; 5. First slow-release cotton; 6. Filter net; 7. Second slow-release cotton. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0021] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant literature, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.
[0024] Example 1
[0025] like Figure 1-4 As shown, the utility model provides a technical solution: a shock absorber damper sealing structure, including a circular oil seal body 1, a circular sliding sleeve 2 with an outer diameter consistent with the inner diameter of the oil seal body 1 is installed inside the oil seal body 1, and a lubrication groove 3 is opened on the inner side of the sliding sleeve 2, and then an oil filling chamber 4 is opened inside the sliding sleeve 2, and then a first slow-release cotton 5 is installed in the oil filling chamber 4 and on the inner side of the lubrication groove 3 in a circular shape, which can effectively slow down the outflow speed of the lubricating oil, and a filter screen 6 with an inner diameter consistent with the outer diameter of the first slow-release cotton 5 is installed on the periphery of the first slow-release cotton 5 and inside the oil filling chamber 4, and then a second slow-release cotton 7 with an inner diameter consistent with the outer diameter of the filter screen 6 is installed inside the oil filling chamber 4.
[0026] Example 2
[0027] like Figure 1-4 As shown, a circular oil filling hole 21 is opened on the top of the sliding sleeve 2, and a sealing cover 22 is installed inside the oil filling hole 21. The sealing cover 22 is snap-fitted with the oil filling hole 21 to facilitate the addition of lubricating oil.
[0028] A circle of sealing rubber ring 23 is provided on the outer periphery of the sealing cover 22, and a removal strip 24 with arc-shaped ends is installed on the top of the sealing cover 22. The sealing rubber ring 23 is made of rubber material. By clamping the removal strip 24 with a clamping device, the sealing cover 22 can be effectively pulled out from the oil filling hole 21.
[0029] A cylindrical filter cartridge 25 is installed at the bottom of the oil filling hole 21 and inside the oil filling chamber 4, and a filter layer 26 is filled inside the filter cartridge 25. The filter layer 26 is made of filter cotton material and can effectively filter impurities in the lubricating oil.
[0030] A circular annular spring 11 is installed inside the oil seal body 1, and a circle of flexible rubber ring 12 is sealed and connected to the periphery of the annular spring 11 and located at the periphery of the oil seal body 1. The flexible rubber ring 12 is made of silicone material. The elasticity of the annular spring 11 can effectively squeeze the flexible rubber ring 12, so that the flexible rubber ring 12 and the oil seal body 1 can be better fixed in the pipe.
[0031] A circular sealing ring 13 is also installed at the bottom of the oil seal body 1, and the sealing ring 13 is made of rubber material, which can effectively improve the sealing effect.
[0032] The working process of the utility model is as follows: when using a shock absorber damper sealing structure for sealing, first, the oil seal body 1 is installed at the sealing part of the shock absorber or damper. After the installation is completed, when the shock absorber or damper is used, the piston and the sliding sleeve 2 reciprocate. At this time, the lubricating oil in the oil filling chamber 4 will soak the second slow-release cotton 7, and the lubricating oil after soaking will be filtered again by the filter 6, and then soak the first slow-release cotton 5. After soaking the first slow-release cotton 5, the lubricating oil adheres to the surface of the piston through the lubrication groove 3. In this way, when the piston reciprocates with the sliding sleeve 2, due to the effect of the lubricating oil, the piston and the sliding sleeve 2 will not dry up, thereby ensuring the sealing effect of the oil seal body 1, so that the lubricating oil and gas in the tube will not leak. The utility model can effectively ensure that the inner side of the sealing oil seal and the piston will not dry up through design, thereby ensuring that the inner side of the oil seal will not be worn, and effectively ensuring that the lubricating oil and gas in the shock absorber and damper tube will not leak.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sealing structure for a shock absorber damper, comprising a circular oil seal body (1), characterized in that: A circular sliding sleeve (2) having an outer diameter that is consistent with the inner diameter of the oil seal body (1) is installed inside the oil seal body (1), a lubrication groove (3) is provided on the inner side of the sliding sleeve (2), and an oil injection cavity (4) is provided inside the sliding sleeve (2), and a first slow-release cotton (5) is installed in a circular shape inside the oil injection cavity (4) and on the inner side of the lubrication groove (3), and a filter screen (6) having an inner diameter that is consistent with the outer diameter of the first slow-release cotton (5) is installed outside the first slow-release cotton (5) and inside the oil injection cavity (4), and a second slow-release cotton (7) having an inner diameter that is consistent with the outer diameter of the filter screen (6) is installed inside the oil injection cavity (4).
2. A sealing structure for a shock absorber damper according to claim 1, characterized in that: A circular oil filling hole (21) is provided on the top of the sliding sleeve (2), and a sealing cover (22) is installed inside the oil filling hole (21), wherein the sealing cover (22) is clamped with the oil filling hole (21).
3. A sealing structure for a shock absorber damper according to claim 2, characterized in that: The outer periphery of the sealing cover (22) is provided with a sealing rubber ring (23), and a removal strip (24) with arc-shaped ends is installed on the top of the sealing cover (22), and the sealing rubber ring (23) is made of rubber material.
4. A sealing structure for a shock absorber damper according to claim 2, characterized in that: A cylindrical filter cartridge (25) is installed at the bottom of the oil injection hole (21) and inside the oil injection cavity (4), and a filter layer (26) is filled inside the filter cartridge (25), wherein the filter layer (26) is made of filter cotton material.
5. The sealing structure of a shock absorber damper according to claim 1, characterized in that: A circular annular spring (11) is installed inside the oil seal body (1), and a circle of flexible rubber ring (12) is sealingly connected to the outer periphery of the annular spring (11) and located at the outer periphery of the oil seal body (1), wherein the flexible rubber ring (12) is made of silicone material.
6. The sealing structure of a shock absorber damper according to claim 1, characterized in that: A circular sealing ring (13) is also installed at the bottom of the oil seal body (1), and the sealing ring (13) is made of rubber material.