Air spring piston and shock absorber integral structure

Abstract

The utility model discloses an air spring piston and shock absorber integral structure which comprises a shock absorber, and a piston outer cylinder is fixed on the outer wall of the shock absorber. The piston inner support is arranged between the piston outer cylinder and the shock absorber, one end of the piston inner support is provided with a first welding seam fixed with the shock absorber, and the other end of the piston inner support is provided with a second welding seam fixed with the piston outer cylinder; wherein the outer wall of the piston outer cylinder is sunken towards one side of the piston inner support to form an assembly groove matched with an external air spring leather bag; the thin-wall structure piston made of the same material as the shock absorber outer cylinder is used, the piston and the shock absorber outer cylinder are welded into a whole to form the shock absorber assembly, namely, the piston and shock absorber integrated structure is formed, the air spring leather bag can be directly buckled and assembled with the shock absorber assembly, and the structure of the strut type air spring assembly can be simplified conveniently; the number of sub-parts is reduced, the cost is reduced, and the later assembly process is simplified.

Description

Technical Field

[0001] This utility model specifically relates to an integrated structure of an air spring piston and a shock absorber. Background Technology

[0002] The strut-type air spring assembly mainly consists of two parts: the air spring and the shock absorber. The piston in the air spring is a separate component, usually made of aluminum or plastic. The piston and the bladder need to be pressed together to form the air spring assembly, and then the air spring assembly is assembled with the shock absorber.

[0003] The above assembly structure has the following technical disadvantages: 1. There are many manufacturing processes. The piston needs to be first assembled with the bladder to form an air spring assembly, and then the air spring assembly is assembled with the shock absorber; 2. There are many parts, resulting in high cost; 3. The piston is a separate part, and its manufacturing and processing are complicated. Therefore, we propose an integrated structure of air spring piston and shock absorber. Utility Model Content

[0004] The purpose of this invention is to provide an integrated structure of an air spring piston and a shock absorber to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integral structure of an air spring piston and a shock absorber, comprising:

[0006] The shock absorber has a piston outer cylinder fixed to its outer wall;

[0007] An inner piston support is provided between the outer piston cylinder and the shock absorber, and one end of the inner piston support has a first weld that is fixed to the shock absorber, and the other end has a second weld that is fixed to the outer piston cylinder.

[0008] The outer wall of the piston outer cylinder is recessed towards the inner support side of the piston to form an assembly groove that mates with the external air spring bladder.

[0009] Preferably, the cross-section of the piston inner support is U-shaped.

[0010] Preferably, the top end of the piston outer cylinder is folded inward and downward to form a reinforcing section, and the reinforcing section is fixed to the piston inner support.

[0011] Preferably, the inner side of the piston inner support has a through hole.

[0012] Preferably, a shock-absorbing support is provided inside the shock absorber, and a protective cover that cooperates with the shock absorber is fitted on the outer surface of the shock-absorbing support.

[0013] Preferably, the lower end of the assembly groove cross-section is stepped.

[0014] Preferably, the piston outer cylinder and piston inner support are made of the same material as the shock absorber.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model uses a thin-walled piston made of the same material as the outer cylinder of the shock absorber. The piston and the outer cylinder of the shock absorber are welded together to form a shock absorber assembly, i.e., an integrated piston-shock absorber structure. This allows the air spring bladder to be directly snapped into the shock absorber assembly, which simplifies the structure of the support-type air spring assembly. It also reduces the number of sub-parts, lowers costs, and simplifies the subsequent assembly process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 For the present utility model Figure 3 A magnified structural diagram at point A;

[0020] Figure 4 This is a schematic diagram of the assembly structure of this utility model.

[0021] In the diagram: 1. Piston outer cylinder; 2. Shock absorber support; 3. Vibration damper; 4. Protective cover; 5. Piston inner support; 6. Assembly groove; 7. Reinforcing section; 8. First weld; 9. Second weld. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-4 This utility model provides a technical solution: an integral structure of an air spring piston and a shock absorber, comprising:

[0024] Vibration damper 3, with piston outer cylinder 1 fixed to the outer wall of vibration damper 3;

[0025] The piston inner support 5 is located between the piston outer cylinder 1 and the shock absorber 3. One end of the piston inner support 5 has a first weld 8 that is fixed to the shock absorber 3, and the other end has a second weld 9 that is fixed to the piston outer cylinder 1.

[0026] This facilitates the welding of the piston and the outer cylinder of the shock absorber into a single unit to form a shock absorber assembly, i.e., an integrated piston-shock absorber structure.

[0027] Among them, the outer wall of the piston outer cylinder 1 is recessed towards the piston inner support 5 to form an assembly groove 6 that matches the external air spring bladder, so that the air spring bladder can be quickly assembled onto the shock absorber 3 later.

[0028] During assembly, the vibration damper of this structure is assembled with the air spring as follows: Figure 4 As shown, the air spring bladder 10 and the piston outer cylinder 1 are connected by a snap-fit ​​ring 11; the air spring bladder 10 covers the surface of the piston outer cylinder 1 to realize the function of the air spring component.

[0029] In this embodiment, preferably, the cross-section of the piston inner support 5 is "U" shaped.

[0030] It is designed to be flexible, which facilitates the buckling assembly of the air spring bladder 10 via the buckling ring 11.

[0031] In this embodiment, preferably, the top end of the piston outer cylinder 1 is folded inward and downward to form a reinforcing section 7, and the reinforcing section 7 is fixed to the piston inner support 5.

[0032] This ensures better strength at one end of the piston outer cylinder 1 and prevents tearing at the end.

[0033] In this embodiment, preferably, a through hole is provided on the inner side of the piston inner support 5.

[0034] This facilitates reducing the weight of the piston's internal support 5 and improving the support's elasticity.

[0035] In this embodiment, preferably, a shock-absorbing support column 2 is provided inside the shock absorber 3, and a protective cover 4 that cooperates with the shock absorber 3 is sleeved on the outer surface of the shock-absorbing support column 2.

[0036] In this embodiment, preferably, the lower end of the cross-section of the assembly groove 6 is stepped.

[0037] This facilitates better contact area with the clamping ring 11, thereby improving the secure mounting effect on the air spring bladder 10.

[0038] In this embodiment, preferably, the materials of the piston outer cylinder 1 and the piston inner support 5 are the same as those of the shock absorber 3, so that they can be welded together as a whole.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air spring piston and shock absorber unitary structure, characterized by, include: Vibration damper (3), wherein a piston outer cylinder (1) is fixed to the outer wall of the vibration damper (3); The piston inner support (5) is disposed between the piston outer cylinder (1) and the shock absorber (3), and one end of the piston inner support (5) has a first weld (8) fixed to the shock absorber (3), and the other end has a second weld (9) fixed to the piston outer cylinder (1). The outer wall of the piston outer cylinder (1) is recessed towards the piston inner support (5) to form an assembly groove (6) that mates with the external air spring bladder.

2. The air spring piston and shock absorber unitary structure of claim 1, wherein: The cross-section of the piston inner support (5) is "U" shaped.

3. The air spring piston and shock absorber unitary structure of claim 1, wherein: The top of the piston outer cylinder (1) is folded inward and downward to form a reinforcing section (7), and the reinforcing section (7) is fixed to the piston inner support (5).

4. The air spring piston and shock absorber unitary structure of claim 1, wherein: The piston inner support (5) has a through hole on its inner side.

5. The air spring piston and shock absorber unitary structure of claim 1, wherein: The shock absorber (3) has a shock absorber support (2) inside, and the outer surface of the shock absorber support (2) is covered with a protective cover (4) that cooperates with the shock absorber (3).

6. The air spring piston and shock integrated structure of claim 1, wherein: The lower end of the cross section of the assembly groove (6) is stepped.

7. The air spring piston and shock absorber unitary structure of claim 1, wherein: The materials of the piston outer cylinder (1) and piston inner support (5) are the same as those of the shock absorber (3).

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