Shock absorber with limiting structure dust cover

Abstract

The utility model discloses a shock absorber with a dust cover of a limiting structure, and belongs to the technical field of automobiles. The problem that in the prior art, a dust cover on a cylinder of a shock absorber is prone to falling off from the cylinder of the shock absorber after being heated and softened is solved. The shock absorber mainly comprises a shock absorber body, the outer side of the shock absorber body is sleeved with a barrel, the top of the barrel is provided with a dust cover, the top of the dust cover is provided with a through hole allowing the shock absorber body to penetrate through, the top of the barrel is provided with an annular protruding edge extending inwards, and the inner wall of the barrel is provided with a boss on the lower side of the protruding edge. An annular limiting wall is arranged at the bottom of the dust cover and can be inserted between the convex edge and the boss; a plurality of clamping holes are formed in the top face of the dust cover at intervals in the circumferential direction, a plurality of clamping blocks extending inwards are installed on the protruding edge at intervals in the circumferential direction, and the clamping blocks are matched with the clamping holes and correspond to the clamping holes in a one-to-one mode.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile, concretely speaking, especially relates to a shock absorber with dust cover of limiting structure. BACKGROUND

[0002] The shock absorber is the elastic damping part on the automobile, and converts the vibration of the vehicle into heat energy and dissipates. The cylinder on the shock absorber generally has a dust cover, the dust cover has a protective effect on the pollutants such as silt and dust in the environment around the shock absorber, prolongs the service life of the shock absorber, avoids the failure of the shock absorber, and the dust cover on the cylinder of the shock absorber has various structures in the development of the automobile history.

[0003] The dust cover on the cylinder of the existing shock absorber is mostly fixed with the shock absorber cylinder through interference fit and clamping, the shock absorber cylinder is heated during the long-time working process of the shock absorber, and then the dust cover on the shock absorber cylinder is heated and softened; the dust cover on the cylinder of the current shock absorber is mainly clamped on the outer side of the shock absorber cylinder by the structure thereof, when the dust cover is softened, the shaking generated in the vehicle movement process can easily lead to the falling of the dust cover on the shock absorber cylinder, and then the shock absorber loses the protection of the dust cover. SUMMARY

[0004] The utility model aims at providing a shock absorber with dust cover of limiting structure to overcome the problem that the dust cover on the cylinder of the shock absorber is easy to fall off from the shock absorber cylinder after being heated and softened.

[0005] The utility model is realized by the following technical scheme, a shock absorber with dust cover of limiting structure, including shock absorber body, the outside of shock absorber body is equipped with the cylinder, the top of cylinder is installed with dust cover, the top of dust cover is equipped with the perforation of passing through for shock absorber body, the top of cylinder is equipped with the annular convex edge of extending inwards, the inner wall of cylinder is equipped with the boss under the side of convex edge, the bottom of dust cover is equipped with the annular limiting wall, the limiting wall can be inserted between convex edge and boss, the top surface of dust cover is equipped with multiple clamping holes along the circumferential direction, the convex edge is installed multiple and extends outwards along the circumferential direction, and the clamping block is matched with clamping hole and one-to-one correspondence.

[0006] Further, the inner wall of the cylinder is installed multiple bosses along the circumferential direction under the side of the convex edge, and the inner wall of the cylinder is installed four bosses along the circumferential direction under the side of the convex edge.

[0007] Further, the top surface of the dust cover is provided with four clamping holes along the circumferential direction.

[0008] Further, the outer end of the clamping block is connected with the convex edge, and the bottom of the clamping block is provided with an inclined surface.

[0009] Further, the top surface of the dust cover is a conical surface.

[0010] Compared with the prior art, the dust cover with the limiting structure has the advantages that:

[0011] The two positioning structures are arranged between the cylinder and the dust cover, one is that the limiting wall of the dust cover is inserted between the convex edge and the convex table, and the other is that the clamping block at the top of the cylinder is clamped into the clamping hole at the top of the dust cover, the two positioning structures can effectively enhance the connection firmness between the dust cover and the cylinder, the problem that the dust cover is easy to fall off from the cylinder after being heated and softened is avoided, and the use stability of the shock absorber is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic view of the utility model;

[0013] Figure 2 is a partial sectional view of the utility model;

[0014] Figure 3 is a structural schematic view of the cylinder of the utility model;

[0015] Figure 4 is a structural schematic view of the dust cover of the utility model.

[0016] In the drawing: 1, shock absorber body; 2, cylinder; 3, dust cover; 4, perforation; 5, convex edge; 6, convex table; 7, limiting wall; 8, clamping hole; 9, clamping block; 10, inclined surface. DETAILED DESCRIPTION

[0017] In order to make the personnel in the technical field better understand the technical scheme in the utility model, the technical scheme in the utility model embodiments will be clearly and completely described below in combination with the drawings in the utility model embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the personnel in the art without creative labor should belong to the protection scope of the utility model.

[0018] A shock absorber with a dust cover with a limiting structure, comprising a shock absorber body 1, the outer side of the shock absorber body 1 is sleeved with a cylinder 2, the top of the cylinder 2 is provided with a dust cover 3, the top of the dust cover 3 is provided with a perforation 4 for the shock absorber body 1 to pass through, and the utility model in use, the top of the shock absorber body 1 passes through the perforation 4 at the top of the dust cover 3.

[0019] The top of the cylinder body 2 is provided with an annular convex edge 5 extending inwardly, the top of the cylinder body 2 extends to the center of the cylinder body 2 by a certain length to form the convex edge 5, the convex edge 5 is inclined and is a conical surface, so that the limiting wall 7 of the dust cover 3 can be clamped between the convex edge 5 and the convex platform 6. The inner wall of the cylinder body 2 is provided with a convex platform 6 below the convex edge 5, the bottom of the dust cover 3 is provided with an annular limiting wall 7, the outer diameter of the limiting wall 7 is greater than the inner diameter of the convex edge 5, the limiting wall 7 can be inserted between the convex edge 5 and the convex platform 6, when the dust cover 3 is installed, the dust cover 3 is deformed by pressing, and then the limiting wall 7 of the dust cover 3 is inserted between the convex edge 5 and the convex platform 6, so that the convex edge 5 and the convex platform 6 limit the dust cover 3.

[0020] The top surface of the dust cover 3 is provided with a plurality of clamping holes 8 spaced apart in the circumferential direction, the convex edge 5 is provided with a plurality of clamping blocks 9 extending inwardly and spaced apart in the circumferential direction, and the clamping blocks 9 are matched with and correspond to the clamping holes 8 one by one. The outer end of the clamping block 9 is connected with the convex edge 5, and the bottom of the clamping block 9 is provided with an inclined surface 10. The top surface of the dust cover 3 is a conical surface. The inclination of the inclined surface 10 at the bottom of the clamping block 9 is the same as that of the conical surface of the dust cover 3, when the limiting wall 7 of the dust cover 3 is inserted between the convex edge 5 and the convex platform 6 by pressing, the clamping block 9 abuts against the top surface of the dust cover 3, at this time, by rotating the dust cover 3, the plurality of clamping blocks 9 can be clamped into the corresponding clamping holes 8 at the same time. Finally, the dust cover 3 can be fixedly connected with the cylinder body 2 through the two positioning structures of the limiting wall 7 and the clamping block 9, and the connection firmness between the dust cover 3 and the cylinder body 2 can be effectively enhanced, the problem that the dust cover 3 is easily separated from the cylinder body 2 after the cylinder body 2 is heated is solved, and the use stability of the automobile shock absorber is further enhanced.

[0021] The inner wall of the cylinder body 2 is provided with a plurality of convex platforms 6 spaced apart in the circumferential direction below the convex edge 5, and the inner wall of the cylinder body 2 is provided with four convex platforms 6 spaced apart in the circumferential direction below the convex edge 5. The top surface of the dust cover 3 is provided with four clamping holes 8 spaced apart in the circumferential direction.

Claims

1. A shock absorber with a dust cover having a position-limiting structure, characterized by, The shock absorber body (1) is sleeved with a cylinder (2) on the outside, a dust cover (3) is installed on the top of the cylinder (2), the top of the dust cover (3) is provided with a through hole (4) for the shock absorber body (1) to pass through, the top of the cylinder (2) is provided with an inwardly extending annular convex edge (5), the inner wall of the cylinder (2) is provided with a convex platform (6) below the convex edge (5), the bottom of the dust cover (3) is provided with an annular limiting wall (7), the limiting wall (7) can be inserted between the convex edge (5) and the convex platform (6), the top surface of the dust cover (3) is provided with a plurality of clamping holes (8) spaced apart in the circumferential direction, the convex edge (5) is provided with a plurality of inwardly extending clamping blocks (9) spaced apart in the circumferential direction, the clamping blocks (9) are matched with the clamping holes (8) one by one.

2. The shock absorber with a dust cover having a limiting structure according to claim 1, characterized by, The inner wall of the cylinder (2) is provided with a plurality of convex platforms (6) spaced apart in the circumferential direction below the convex edge (5).

3. The shock absorber with a dust cover having a limiting structure according to claim 1, characterized by, The top surface of the dust cover (3) is provided with four clamping holes (8) spaced apart in the circumferential direction.

4. The shock absorber with a dust cover having a limiting structure according to claim 1, characterized by The outer end of the clamping block (9) is connected with the convex edge (5), and the bottom of the clamping block (9) is provided with an inclined surface (10).

5. The shock absorber with a dust cover having a limiting structure according to claim 4, characterized by The top surface of the dust cover (3) is a conical surface.

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