Connecting structure of shock absorber dust cover

Abstract

The connecting structure of the shock absorber dust cover comprises a dust cover body, the edge of one end of the dust cover body is bent towards the center of the dust cover body to form a first limiting part, and a circle of peripheral wall of the dust cover body protrudes towards the center of the dust cover body to form a second limiting part; and a clamping area for arranging the dustproof cover is formed between the first limiting part and the second limiting part. The clamping area is formed by arranging the first limiting part and the second limiting part, the dust cover cap can be clamped and limited in the clamping area without welding, and compared with a traditional welding connection mode, the connecting structure is good in overall impression, and original plating layers of the dust cover body and the dust cover cap cannot be damaged; meanwhile, the cutting procedure of a plating layer before welding can be omitted; and in addition, the original plating layer is not damaged in the connection process, so that after the connection is completed, an anti-rust process does not need to be additionally arranged, the process flow is greatly simplified, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of shock absorber technology, and in particular to a connection structure for a shock absorber dust cover. Background Technology

[0002] The ends of shock absorbers (damping rod shock absorbers) are usually equipped with dust covers to prevent external dust, sand and other impurities from entering the shock absorber and affecting its normal operation, or even causing damage to the shock absorber.

[0003] Currently, dust covers consist of a dust cover body and a dust cover cover. The dust cover body has a sleeve-like structure with both ends connected to each other. The dust cover cover is located at one end of the dust cover body. The two are usually connected by welding. Although welding can securely connect the two, certain drawbacks have been found in actual use. For example, welding can damage the original anti-rust coating, affecting its service life. In addition, the coating needs to be cut before welding, which is very inconvenient. Utility Model Content

[0004] The purpose of this application is to provide a connection structure for a shock absorber dust cover to solve the above-mentioned problems.

[0005] To achieve the above objectives, the technical solution of this application is as follows:

[0006] A connection structure for a dust cover of a shock absorber includes a dust cover body, one end edge of the dust cover body is bent toward the center of the dust cover body to form a first limiting part, and a circumferential wall of the dust cover body is protruded toward the center of the dust cover body to form a second limiting part, and a snap-fit ​​area for the dust cover cover to be installed is formed between the first limiting part and the second limiting part.

[0007] Preferably, the dust cover body includes a first sleeve and a second sleeve, one end of the first sleeve and the end of the second sleeve facing away from the shock absorber are detachably connected; the first limiting part is disposed at the end of the first sleeve away from the second sleeve, and the second limiting part is located on the second sleeve.

[0008] Preferably, the first sleeve has a snap-fit ​​ring on one end face facing the second sleeve, and the second sleeve has an annular snap-fit ​​groove on one end facing away from the shock absorber, with the snap-fit ​​ring nested in the annular snap-fit ​​groove.

[0009] Preferably, the snap ring is threaded into the annular snap groove.

[0010] Preferably, a pre-positioning ring is provided on the inner peripheral wall of the second sleeve, and the pre-positioning ring is located in the snap-fit ​​area.

[0011] Preferably, the second limiting part includes an abutment wall and a support wall, wherein the abutment wall and the support wall are connected to each other on opposite sides and respectively connected to the second sleeve on opposite sides; the inclination degree of the abutment wall is greater than the inclination angle of the support wall.

[0012] Preferably, the second sleeve, the abutting wall, and the supporting wall are integrally formed.

[0013] The dust cover connection structure disclosed in this application forms a snap-fit ​​area by setting a first limiting part and a second limiting part. The dust cover can be snap-fitted and limited in the snap-fit ​​area without welding. Compared with the traditional welding connection method, the connection structure provided by this application has a better overall appearance and will not damage the original coating of the dust cover body and the dust cover. At the same time, it can also eliminate the cutting process of the coating before welding. In addition, since the original coating is not damaged during the connection process, there is no need to carry out additional anti-rust treatment after the connection is completed, which greatly simplifies the process and improves production efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the overall structure of this application;

[0015] Figure 2 This is the main view of the overall structure of this application;

[0016] Figure 3 for Figure 2 Sectional view of section AA (only the cross section is shown);

[0017] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle.

[0018] In the picture:

[0019] 1. Second sleeve; 10. Second limiting part; 101. Abutting wall; 102. Supporting wall; 11. Annular snap-fit ​​groove; 12. Pre-positioning ring; 2. First sleeve; 20. First limiting part; 21. Snap-fit ​​ring; 3. Dustproof cover. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present application, and therefore only show the components relevant to the present application.

[0021] like Figure 1-4As shown, a connection structure for a shock absorber dust cover includes a dust cover body, one end edge of the dust cover body is bent toward the center of the dust cover body to form a first limiting part 20, a circumferential wall of the dust cover body is protruded toward the center of the dust cover body to form a second limiting part 10, and a snap-fit ​​area for the dust cover cover 3 is formed between the first limiting part 20 and the second limiting part 10.

[0022] The dust cover body has a cylindrical structure. One end is used to connect to the shock absorber, and the other end is bent towards its own axis to form the first limiting part 20. The second limiting part 10 is specifically located inside the dust cover body so as to engage the dust cover 3 together with the first limiting part 20.

[0023] Specifically, the first limiting part 20 and the second limiting part 10 can be processed by cold rolling.

[0024] By setting the first limiting part 20 and the second limiting part 10 to form a snap-fit ​​area, the dust cover 3 can be snap-fitted and limited in the snap-fit ​​area without welding. Compared with the traditional welding connection method, the connection structure provided by this application has a better overall appearance and will not damage the original coating of the dust cover body and the dust cover 3. At the same time, the cutting process of the coating before welding can be eliminated. In addition, since the original coating is not damaged during the connection process, there is no need to set up an additional anti-rust process after the connection is completed, which greatly simplifies the process and improves production efficiency.

[0025] In some further embodiments, the dust cover body includes a first sleeve 2 and a second sleeve 1, one end of the first sleeve 2 is detachably connected to the end of the second sleeve 1 facing away from the shock absorber; a first limiting part 20 is disposed at the end of the first sleeve 2 away from the second sleeve 1, and a second limiting part 10 is located on the second sleeve 1.

[0026] When the connection between the first sleeve 2 and the second sleeve 1 is located in the snap-fit ​​area, the dust cover 3 can be removed. If it is necessary to clean and maintain the inside of the dust cover or to replace a certain part, the first sleeve 2 can be removed from the second sleeve 1, so that the snap-fit ​​area is in an "open" state, that is, the first limiting part 20 and the second limiting part 10 are far apart from each other.

[0027] The first sleeve 2 and the second sleeve 1 can be connected by threads.

[0028] In some further embodiments, the end face of the first sleeve 2 facing the second sleeve 1 is provided with a snap ring 21, and the end face of the second sleeve 1 facing away from the shock absorber is provided with an annular snap groove 11, with the snap ring 21 nested in the annular snap groove 11.

[0029] To further improve the stability of the connection between the first sleeve 2 and the second sleeve 1, a snap-fit ​​ring 21 is provided on the first sleeve 2 and an annular snap-fit ​​groove 11 is provided on the second sleeve 1. The snap-fit ​​ring 21 is nested in the annular snap-fit ​​groove 11, which further ensures the accuracy and firmness of the fit between the two.

[0030] In some further embodiments, the snap ring 21 is threaded into the annular snap groove 11.

[0031] Specifically, the outer peripheral wall of the snap ring 21 is provided with external threads, while the inner peripheral wall of the annular snap groove 11 is provided with internal threads. The snap ring 21 and the annular snap groove 11 are screwed together by the external threads and the internal threads.

[0032] In some further embodiments, a prepositioning ring 12 is provided on the inner peripheral wall of the second sleeve 1, and the prepositioning ring 12 is located in the snap-fit ​​area.

[0033] For example, the prepositioning ring 12 arches on the inner peripheral wall of the second sleeve 1. When the dust cover 3 is installed, the outer peripheral wall of the dust cover 3 will be abutted by the prepositioning ring 12. Then the first sleeve 2 is screwed onto the second sleeve 1 to achieve complete fixation of the dust cover 3.

[0034] Specifically, the prepositioning ring 12 can be achieved through a cold rolling process.

[0035] In some further embodiments, the second limiting part 10 includes an abutment wall 101 and a support wall 102, with the sides of the abutment wall 101 and the support wall 102 facing each other and the sides facing away from each other connected to the second sleeve 1; the inclination of the abutment wall 101 is greater than the inclination angle of the support wall 102.

[0036] The tilt angle of the abutment wall 101 is greater than that of the support wall 102. The abutment wall 101 is used to directly fix and limit the dust cover 3. The larger its tilt angle, the lower the risk of the dust cover 3 slipping off. The smaller the tilt angle of the support wall 102, the better its support effect on the abutment wall 101, which in turn makes the abutment wall 101 more firmly abut against the dust cover 3.

[0037] In some further embodiments, the second sleeve 1, the abutment wall 101, and the support wall 102 are integrally formed.

[0038] Since the second limiting part 10 is formed by cold rolling, the second sleeve 1, the abutting wall 101, and the supporting wall 102 are integrally formed. The integral forming method can increase the abutting stability of the second limiting part 10 against the dust cover 3.

[0039] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A connection structure for a shock absorber dust cover, characterized in that, Includes a dust cover body, one end edge of the dust cover body is bent toward the center of the dust cover body to form a first limiting part (20), and a circumferential wall of the dust cover body is protruded toward the center of the dust cover body to form a second limiting part (10). A snap-fit ​​area for the dust cover cover (3) is formed between the first limiting part (20) and the second limiting part (10).

2. The connection structure of the shock absorber dust cover according to claim 1, characterized in that, The dust cover body includes a first sleeve (2) and a second sleeve (1). One end of the first sleeve (2) is detachably connected to the end of the second sleeve (1) facing away from the shock absorber. The first limiting part (20) is located at the end of the first sleeve (2) away from the second sleeve (1), and the second limiting part (10) is located on the second sleeve (1).

3. The connection structure of the shock absorber dust cover according to claim 2, characterized in that, The first sleeve (2) has a snap ring (21) on one end face facing the second sleeve (1), and the second sleeve (1) has an annular snap groove (11) on one end facing away from the shock absorber. The snap ring (21) is nested in the annular snap groove (11).

4. The connection structure of the shock absorber dust cover according to claim 3, characterized in that, The snap ring (21) is threaded into the annular snap groove (11).

5. The connection structure of the shock absorber dust cover according to claim 4, characterized in that, The inner circumferential wall of the second sleeve (1) is provided with a prepositioning ring (12), which is located in the snap-fit ​​area.

6. The connection structure of the shock absorber dust cover according to claim 5, characterized in that, The second limiting part (10) includes an abutting wall (101) and a supporting wall (102). The abutting wall (101) and the supporting wall (102) are connected to each other on opposite sides and connected to the second sleeve (1) on opposite sides. The inclination of the abutting wall (101) is greater than the inclination angle of the supporting wall (102).

7. The connection structure of the shock absorber dust cover according to claim 6, characterized in that, The second sleeve (1), the abutting wall (101), and the supporting wall (102) are integrally formed.

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