Dust cover structure of automobile air spring

Abstract

The utility model provides a dust cover structure of an automobile air spring, which relates to the technical field of air springs, and comprises a protective cylinder of the air spring and a dust cover installed with the protective cylinder, the edge opening of the lower end of the protective cylinder is bent outwards to form a bent edge, and the inner wall of the upper part of the dust cover is provided with an annular groove which is clamped with the bent edge; the dustproof cover and the protective cylinder can be connected in the mode that the annular groove and the bent edge are connected in a clamped mode, abrasion of the clamping hoop to the dustproof cover can be reduced, the fastening effect can be kept, corrosion of rainwater to the device can be reduced, the protection effect is improved, and the service life of the dustproof cover is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air spring especially relates to a dust cover structure of automobile air spring. BACKGROUND

[0002] Air spring is a component part in the field of automobile shock suspension, its function is to inhibit the redundant bounce of automobile wheel hub and improve the stability of automobile, a layer of dust cover is arranged on the periphery of common air spring to protect the rubber air bag inside the air spring from damage caused by external impact, the installation of the existing dust cover is fixed through the way of clamp, the inner diameter of the dust cover needs to be greater than the outer diameter of the air spring cylinder, and then the clamp is used to fix and install, under long-term use, due to the lifting of the air spring and the vibration caused by the road surface, the clamp will cause wear on the periphery of the dust cover, affect the service life of the dust cover, and increase the manufacturing cost of the air spring. SUMMARY

[0003] The utility model solves the technical problem that the dust cover may be affected by the wear of the clamp and affect the service life.

[0004] Based on the technical problems in the background art, the utility model provides a dust cover structure of automobile air spring, which comprises a cylinder of an air spring and a dust cover installed with the cylinder, the lower end of the cylinder is outwardly bent along the rim and forms a bent edge, and the inner wall of the upper part of the dust cover is provided with a ring groove and is clamped with the bent edge.

[0005] Preferably, the first reinforcing ring with a straight triangle cross section is arranged above the ring groove of the dust cover, the first reinforcing ring is connected with the upper end of the dust cover, and the hypotenuse of the cross section of the first reinforcing ring faces outward.

[0006] Preferably, a second reinforcing ring is arranged below the ring groove of the dust cover, and the second reinforcing ring is arranged below the ring groove and is connected with the dust cover.

[0007] Preferably, the bent edge and the cylinder cross section form a right angle.

[0008] Preferably, the outer diameter of the cylinder is greater than the inner diameter of the dust cover, and the dust cover is installed on the periphery of the cylinder by overflow.

[0009] Compared with the prior art, the dust cover structure of the utility model adopts the above technical scheme, and has the following technical effects:

[0010] The dust cover and the protective sleeve of this utility model can be connected by a ring groove and a bent edge snap-fit, which can reduce the wear of the dust cover by the clamp and maintain a tight fit. This application can reduce the corrosion of the device by rainwater, improve the protection effect, and extend the service life of the dust cover. Attached Figure Description

[0011] Figure 1 This is an installation diagram of the present invention;

[0012] Figure 2 This is an enlarged schematic diagram of region a of this utility model.

[0013] In the diagram: 1. Casing; 2. Dust cover; 11. Bending edge; 21. Annular groove; 22. First reinforcing ring; 23. Second reinforcing ring. Detailed Implementation

[0014] Example

[0015] Please refer to Figures 1 to 2 This utility model proposes a structure for a dust cover 2 for an automotive air spring, including a protective sleeve 1 for the air spring and a dust cover 2 installed with the protective sleeve 1. The lower end of the protective sleeve 1 is bent outward along the opening to form a bent edge 11. An annular groove 21 is provided on the inner wall of the upper part of the dust cover 2 and is engaged with the bent edge 11. In this solution, the connection between the dust cover 2 and the protective sleeve 1 is achieved through the engagement of the annular groove 21 and the bent edge 11. When the air spring is running, the protective sleeve 1 can move one end of the dust cover 2 together through the bent edge 11 and maintain the seal. The larger the bending angle of the bent edge 11, the greater the upward angle of its end, and the stronger the connection between the dust cover 2 and the protective sleeve 1.

[0016] In specific implementation, refer to Figure 1 , Figure 2 The dust cover 2 is located above the annular groove 21 and is provided with a first reinforcing ring 22 with a right-angled triangular cross-section. The first reinforcing ring 22 is connected to the upper end of the dust cover 2, and the hypotenuse of the first reinforcing ring 22 faces outward. In this solution, after the dust cover 2 and the protective sleeve 1 are restricted by the bent edge 11, if the downward pulling force of the dust cover 2 is too large, it may cause the dust cover 2 and the protective sleeve 1 to separate. The triangular shape of the first reinforcing ring 22 can exert a pulling force on the annular groove 21 with the hypotenuse. When pulled down, the end of the bent edge 11 and the annular groove 21 will form a lever. When the top of the first reinforcing ring 22 expands outward, it will be supported by the hypotenuse of the first reinforcing ring 22, which can prevent the top of the first reinforcing ring 22 from shrinking with the annular groove 21, thereby playing a role in reinforcement and safety.

[0017] In specific implementation, refer to Figure 1 , Figure 2The dust cover 2 is located below the annular groove 21 and is provided with a second reinforcing ring 23. The second reinforcing ring 23 is located below the annular groove 21 and is connected to the dust cover 2. In this solution, the second reinforcing ring 23 can cooperate with the first reinforcing ring 22 to clamp the bent edge 11, thereby playing a further reinforcing role.

[0018] In specific implementation, refer to Figure 1 , Figure 2 The angle between the bent edge 11 and the cross section of the casing 1 is a right angle. In this scheme, the right angle of the bent edge 11 provides longitudinal support for the dust cover 2.

[0019] In specific implementation, refer to Figure 1 , Figure 2 The outer diameter of the casing 1 is larger than the inner diameter of the dust cover 2. The dust cover 2 is installed on the outer periphery of the casing 1 by overflow. In this solution, the dust cover 2 is made of rubber and has a certain elasticity. Its overflow installation can improve the fit between the dust cover 2 and the casing 1, thereby improving the sealing effect.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dust cover structure for an automotive air spring, characterized in that, The invention discloses a casing (1) including an air spring and a dust cover (2) installed with the casing (1), the lower end of the casing (1) is bent outward along the mouth and forms a bent edge (11), the inner wall above the dust cover (2) is provided with a ring groove (21) and is clamped with the bent edge (11).

2. The dust cover structure for an automobile air spring according to claim 1, wherein The first reinforcing ring (22) with a right triangle cross section is arranged above the ring groove (21) of the dust cover (2), the first reinforcing ring (22) is connected with the upper end of the dust cover (2), and the hypotenuse of the cross section of the first reinforcing ring (22) is outward.

3. The dust cover structure for an automobile air spring according to claim 2, wherein The second reinforcing ring (23) is arranged below the ring groove (21) of the dust cover (2), the second reinforcing ring (23) is arranged below the ring groove (21) and is connected with the dust cover (2).

4. The dust cover structure for an automobile air spring according to claim 1, wherein The bent edge (11) is at a right angle with the cross section of the casing (1).

5. The dust cover structure for an automobile air spring according to claim 1, wherein The outer diameter of the casing (1) is greater than the inner diameter of the dust cover (2), and the dust cover (2) is installed on the periphery of the casing (1) by overflow.

Images