Shock absorber with dustproof sleeve convenient to replace

Abstract

The utility model relates to the technical field of dustproof sleeves of shock absorbers, in particular to a shock absorber with a dustproof sleeve convenient to replace, which comprises a shock absorber outer cylinder and a shock absorber inner cylinder, and a shock absorption element is slidably connected between the shock absorber outer cylinder and the shock absorber inner cylinder. The two annular fixing pieces are fixedly installed on the outer side of the shock absorber outer cylinder and the outer side of the shock absorber inner cylinder respectively. The dustproof sleeve is arranged on the outer sides of the two annular fixing pieces in a sliding and sleeving manner; the two positioning assemblies are used for fixing the two ends of the dustproof sleeve to the outer sides of the two annular fixing pieces correspondingly. The annular concave-convex parts at the two ends of the dustproof sleeve are connected with the annular clamping grooves in the two annular fixing pieces in a clamped mode respectively, and then the two ends of the dustproof sleeve cannot slide on the surfaces of the shock absorber outer cylinder and the shock absorber inner cylinder under the fixing effect of each semi-annular clamping hoop, the corresponding bolt and the corresponding nut. The connecting firmness between the dustproof sleeve and the shock absorber is improved, and therefore the risk that the dustproof sleeve is loosened and disengaged when the shock absorber works is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorber dust covers, in particular to a shock absorber facilitating the replacement of a dust cover. Background Art

[0002] A shock absorber is used to suppress the oscillation after the spring absorbs shock and the impact from the road surface. It is widely used in automobiles. To accelerate the attenuation of the vibration of the vehicle frame and the body and improve the ride comfort of the vehicle, a dust cover is arranged outside the shock absorber to play a dust-proof role, thereby increasing its service life.

[0003] When the shock absorber is in use, due to the frequent reciprocation of the dust cover, the dust cover on its outer part is damaged, and then it needs to be replaced to ensure the dust-proof effect of the dust cover. The existing dust covers are usually directly fixed on the outer surface of the shock absorber by the cooperation of a clamp and a bolt. However, this method lacks a limiting device, so it is easy to cause loosening and detachment during the frequent reciprocation of the dust cover, and it cannot play a dust-proof role for the shock absorber. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the background art, and a shock absorber facilitating the replacement of a dust cover is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A shock absorber facilitating the replacement of a dust cover, comprising:

[0007] An outer shock absorber cylinder and an inner shock absorber cylinder, which are slidably connected and provided with shock-absorbing elements between the outer shock absorber cylinder and the inner shock absorber cylinder;

[0008] Two annular fixing members, which are respectively fixedly installed on the outer sides of the outer shock absorber cylinder and the inner shock absorber cylinder;

[0009] A dust cover, which is slidably sleeved on the outer sides of the two annular fixing members;

[0010] Two positioning components, which are used to respectively fix the two ends of the dust cover on the outer sides of the two annular fixing members.

[0011] Preferably, the positioning component includes an annular groove fixedly formed on the surface of the annular fixing member. The outer walls of the two ends of the dust cover are attached to two semi-annular clamps, and both semi-annular clamps are clamped with the annular groove. Bolts are movably penetrated through both ends of one of the semi-annular clamps, and the bolts movably penetrate through the ends of the other semi-annular clamp. Nuts are fixedly installed at both ends of the other semi-annular clamp, and the two nuts are respectively threadedly connected with the two bolts.

[0012] Preferably, annular concave-convex portions are provided on the outer walls of both ends of the dust cover, and the two annular concave-convex portions are respectively clamped with the two annular clamping grooves.

[0013] Preferably, mounting holes are provided at both ends of each semi-circular clamp, and each mounting hole is slidably connected to a corresponding bolt.

[0014] Preferably, the material of the dust cover is polyurethane.

[0015] Compared with the prior art, the advantages of a shock absorber with a dust cover that is easy to replace provided by the present utility model are as follows:

[0016] Through the clamping of the annular concave-convex portions at both ends of the dust cover with the annular clamping grooves on the two annular fixing members, and then under the fixation of each semi-circular clamp, bolt and nut, the two ends of the dust cover cannot slide on the surfaces of the shock absorber outer cylinder and the shock absorber inner cylinder, increasing the connection firmness between the dust cover and the shock absorber, thereby reducing the risk of the dust cover loosening and detaching during the operation of the shock absorber. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of a shock absorber with a dust cover that is easy to replace proposed by the present utility model;

[0018] Figure 2 is a partial structural diagram of a shock absorber with a dust cover that is easy to replace proposed by the present utility model;

[0019] Figure 3 is a schematic structural diagram of the dust cover in a shock absorber with a dust cover that is easy to replace proposed by the present utility model;

[0020] Figure 4 is a schematic structural diagram of the semi-circular clamp in a shock absorber with a dust cover that is easy to replace proposed by the present utility model.

[0021] In the figure: 1 shock absorber outer cylinder, 2 shock absorber inner cylinder, 3 annular fixing member, 4 annular clamping groove, 5 dust cover, 6 semi-circular clamp, 7 nut, 8 bolt, 9 annular concave-convex portion. Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] Referring to Figures 1 to 4 , a shock absorber with a dust cover that is easy to replace includes:

[0024] The outer cylinder 1 of the shock absorber and the inner cylinder 2 of the shock absorber, and the outer cylinder 1 of the shock absorber and the inner cylinder 2 of the shock absorber are slidably connected and provided with shock-absorbing elements. The shock-absorbing elements are not drawn in the figure. This part is the public technology in the existing shock absorber, and this technical solution will not be elaborated in detail.

[0025] Two annular fixing members 3 are respectively fixedly installed on the outer sides of the outer cylinder 1 of the shock absorber and the inner cylinder 2 of the shock absorber; a dust cover 5 is slidably sleeved on the outer sides of the two annular fixing members 3. Annular concave and convex portions 9 are respectively formed on the outer walls at both ends of the dust cover 5, and the two annular concave and convex portions 9 are respectively clamped with the two annular clamping grooves 4, so that the two ends of the dust cover 5 can be quickly docked with the two annular fixing members 3 respectively, thereby enabling quick positioning between the dust cover and the outer cylinder 1 of the shock absorber and the inner cylinder 2 of the shock absorber.

[0026] Two positioning components are used to respectively fix the two ends of the dust cover 5 on the outer sides of the two annular fixing members 3. The positioning components include annular clamping grooves 4 fixedly formed on the surfaces of the annular fixing members 3. Two semi-annular clamps 6 are attached to the outer walls of the ends of the dust cover 5, and the two semi-annular clamps 6 are both clamped with the annular clamping grooves 4. Bolts 8 are movably penetrated through both ends of one of the semi-annular clamps 6. Installation holes are respectively formed at both ends of each semi-annular clamp 6, and each installation hole is slidably connected with the corresponding bolt 8. After the two semi-annular clamps 6 are aligned, a plurality of bolts 8 can be sequentially passed through the corresponding installation holes to quickly dock the two semi-annular clamps 6.

[0027] And the bolts 8 movably penetrate through the ends of the other semi-annular clamp 6. Nuts 7 are fixedly installed at both ends of the other semi-annular clamp 6, and the two nuts 7 are respectively threadedly connected with the two bolts 8. After the corresponding two semi-annular clamps 6 are docked, the bolts 8 are tightened to be threadedly connected with the corresponding nuts 7, so that the two ends of the dust cover 5 can be respectively fixed on the surfaces of the two annular fixing members 3. Then when the dust cover 5 needs to be replaced, each bolt 8 is screwed out and each semi-annular clamp 6 is removed, and then the dust cover 5 can be removed and finally replaced.

[0028] Furthermore, the material of the dust cover 5 is polyurethane, which has high wear resistance, tear resistance, elasticity, deformation ability and temperature resistance, ensuring the service performance of the dust cover 5.

[0029] The working principle of the present utility model is as follows:

[0030] When installing the dust cover 5, first, the two ends of the dust cover 5 are sequentially pushed outwards and passed through the outer cylinder 1 of the shock absorber and the inner cylinder 2 of the shock absorber and sleeved on the two annular fixing members 3. When the annular concave and convex portions 9 at the ends of the dust cover 5 are aligned with the annular clamping grooves 4 on the corresponding annular fixing members 3, the dust cover 5 is released. Then, under the action of the self-gravity of the dust cover 5, it quickly resets and snaps into the corresponding annular clamping grooves 4, so that the two annular concave and convex portions 9 are respectively clamped with the two annular clamping grooves 4;

[0031] Subsequently, each bolt 8 is sequentially passed through the corresponding mounting hole and then threadedly connected to the corresponding nut 7, and thus the installation and fixation of the dust cover 5 to the outer shock absorber cylinder 1 and the inner shock absorber cylinder 2 can be completed. At this time, the annular concave and convex portions 9 at both ends of the dust cover 5 are respectively clamped with the annular card slots 4 on the two annular fixing members 3, so that both ends of the dust cover 5 cannot slide on the surfaces of the outer shock absorber cylinder 1 and the inner shock absorber cylinder 2, increasing the connection firmness between the dust cover 5 and the shock absorber and reducing the risk of the dust cover 5 loosening and detaching during the operation of the shock absorber;

[0032] Finally, when the dust cover 5 needs to be replaced, each bolt 8 is screwed out and each semi-circular clamp 6 is removed, and then the dust cover 5 can be removed and replaced.

[0033] Further explanation, the above fixed connection, unless otherwise clearly specified and limited, should be understood in a broad sense. For example, it can be welding, gluing, or integrally formed setting, etc., which are common means well-known to those skilled in the art.

[0034] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A shock absorber facilitating the replacement of a dust cover, characterized in that, including; a shock absorber outer cylinder (1) and a shock absorber inner cylinder (2), and the shock absorber outer cylinder (1) and the shock absorber inner cylinder (2) are slidably connected and provided with shock-absorbing elements; two annular fixing members (3) respectively fixedly installed on the outer sides of the shock absorber outer cylinder (1) and the shock absorber inner cylinder (2); a dust cover (5) slidably sleeved on the outer sides of the two annular fixing members (3); two positioning components for respectively fixing the two ends of the dust cover (5) on the outer sides of the two annular fixing members (3).

2. The shock absorber for facilitating the replacement of a dust cover according to claim 1, wherein, The positioning component includes an annular card slot (4) fixedly opened on the surface of the annular fixing member (3). Two semi-annular clamps (6) are attached to the outer wall of the end of the dust cover (5), and both of the two semi-annular clamps (6) are clamped with the annular card slot (4). Bolts (8) are movably penetrated through both ends of one of the semi-annular clamps (6), and the bolts (8) movably penetrate through the end of the other semi-annular clamp (6). Nuts (7) are fixedly installed at both ends of the other semi-annular clamp (6), and the two nuts (7) are respectively threadedly connected with the two bolts (8).

3. The shock absorber for facilitating the replacement of a dust cover according to claim 1, characterized in that, Annular concave and convex portions (9) are respectively opened on the outer walls of the two ends of the dust cover (5), and the two annular concave and convex portions (9) are respectively clamped with the two annular card slots (4).

4. The shock absorber for facilitating the replacement of a dust cover according to claim 1, wherein, Installation holes are respectively opened at both ends of each semi-annular clamp (6), and each installation hole is slidably connected with the corresponding bolt (8).

5. The shock absorber for facilitating the replacement of a dust cover according to claim 1, wherein The material of the dust cover (5) is polyurethane.

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