Sealing sleeve anti-falling structure for front fork shock absorber of electric vehicle

By installing anti-disengagement components in the fork shock absorber of electric vehicles, including gaskets, envelopes, screw sleeves, connecting frames and snap rings, the problem of the envelope falling off under severe vibration is solved, and the stable fixing position and sealing effect of the envelope is achieved, improving the comfort and stability of riding.

CN223190903UActive Publication Date: 2025-08-05WUXI TIANXI MECHANICAL EQUIP MFG CO LTD
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Patent Information

Application Number
CN202422477883.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-14
Publication Date
2025-08-05
Estimated Expiration
2034-10-14

AI Technical Summary

Technical Problem

The envelope of the front fork shock absorber of existing electric vehicles is prone to fall off under severe vibration or impact, affecting the sealing performance of the shock absorber and the comfort and stability of riding.

Method used

Anti-detachment components are adopted, including gaskets, shock absorber envelopes, screw sleeves, connecting frames, press rings, covers and anti-detachment rings. Through threaded connections and slot design, the envelope is ensured to be stable and fixed in the shock absorber and enhance the sealing effect.

Benefits of technology

Maintain the sealing performance of the shock absorber under various road conditions, prevent lubricant leakage and external impurities from entering, ensure that the envelope is not easy to fall off, and improve riding comfort and stability.

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Abstract

The utility model relates to a sealing sleeve anti-falling structure for an electric vehicle front fork shock absorber, which belongs to the field of electric vehicle front fork shock absorbers, and comprises an anti-falling component arranged in a front fork shock absorber main body, the anti-falling component comprises a gasket and a shock absorber sealing sleeve, the gasket is arranged in the front fork shock absorber main body, and the shock absorber sealing sleeve is arranged in the shock absorber sealing sleeve. And the sleeve is used as a sleeve supporting point. According to the sealing sleeve anti-falling structure for the front fork shock absorber of the electric vehicle, through matched use of the gasket and the shock absorber sealing sleeve, stable support is provided for the shock absorber, it is ensured that the sealing performance of the shock absorber can be maintained under various road conditions, and leakage of lubricating oil and invasion of external impurities are prevented; according to the sealing sleeve, the anti-falling clamping ring and the clamping groove are combined, additional fixing force is provided for the sealing sleeve in combination with comprehensive attachment of the pressing ring, the sealing sleeve is effectively prevented from falling off under strenuous vibration or impact, in addition, the stability of the sealing sleeve is further enhanced through ingenious combination of the anti-falling clamping ring and the clamping groove, and it is guaranteed that the sealing sleeve is not prone to shifting in long-time use.
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Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle front fork shock absorbers, in particular to a sleeve anti-detachment structure for electric vehicle front fork shock absorbers. Background Art

[0002] The front fork shock absorber is an important component of two-wheeled or three-wheeled vehicles such as bicycles, motorcycles, and electric vehicles. It is installed above the front wheel of the vehicle and is used to absorb and reduce the impact and vibration caused by uneven road surface during driving. The shock absorber can effectively absorb bumps on the road, reduce the vibration transmitted to the rider's body, and provide a more comfortable riding experience.

[0003] When the sleeve provides oil sealing protection for the front fork shock absorber without anti-detachment protection, it may affect the shock absorption stability of the shock absorber, because the oil sealing function of the sleeve is to prevent the lubricating oil inside the shock absorber from leaking out, and also to prevent external moisture and impurities from entering the shock absorber. When the sleeve lacks anti-detachment protection, it is easy to fall off the shock absorber when encountering severe vibration or impact, causing the shock absorber to malfunction and affecting the riding comfort and stability. Therefore, a sleeve anti-detachment structure for the front fork shock absorber of an electric vehicle is proposed to solve the above problem. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a sleeve anti-detachment structure for the front fork shock absorber of an electric vehicle, which has the advantages of preventing the sleeve from falling off, and solves the problem that when the sleeve lacks anti-detachment protection, it is easy to fall off from the shock absorber when encountering severe vibration or impact, causing the shock absorber to fail to work normally and affecting the riding comfort and stability.

[0005] To achieve the above-mentioned object, the present utility model provides the following technical solutions: a sleeve anti-detachment structure for a front fork shock absorber of an electric vehicle, comprising an anti-detachment component arranged inside a main body of the front fork shock absorber;

[0006] The anti-fall-off assembly includes a washer and a shock absorber sleeve. The washer is arranged inside the front fork shock absorber body to serve as a sleeve support point. The shock absorber sleeve is arranged above the washer. The inner wall of the front fork shock absorber body is threadedly connected with a screw sleeve. The inner wall of the screw sleeve is provided with a connecting frame, and a pressure ring is fixed on the lower surface of the connecting frame to prevent the shock absorber sleeve from falling off. A sealing cover is provided on the top of the screw sleeve.

[0007] Furthermore, an anti-dropout clamping ring is provided inside the front fork shock absorber body to limit the position of the shock absorber sleeve.

[0008] Furthermore, a slot for inserting an anti-dropping clamp ring is provided on the outer side of the shock absorber sleeve.

[0009] Furthermore, the diameter of the pressure ring is equal to the diameter of the shock absorber sleeve, so as to fully fit with the end of the shock absorber sleeve.

[0010] Furthermore, the diameter of the cover is equal to the diameter of the front fork shock absorber body, and a sealing ring is provided at the lower end of the cover to enhance the sealing effect of the shock absorber sleeve.

[0011] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0012] The anti-drop structure of the sleeve for the front fork shock absorber of an electric vehicle provides a stable support for the shock absorber through the coordinated use of a gasket and the shock absorber sleeve, ensuring that the sealing performance of the shock absorber can be maintained under various road conditions, preventing the leakage of lubricating oil and the intrusion of external impurities. Secondly, the design of the screw sleeve and the connecting frame, combined with the full fit of the pressure ring, provides additional fixing force for the sleeve, effectively preventing the sleeve from falling off under severe vibration or impact. In addition, the ingenious combination of the anti-drop clamping ring and the clamping groove further enhances the stability of the sleeve, ensuring that it is not easy to shift during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the anti-slip component of the utility model;

[0015] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure in the middle.

[0016] In the figure: 1. Front fork shock absorber body; 2. Anti-slip assembly; 21. Washer; 22. Shock absorber sleeve; 23. Screw sleeve; 24. Connecting frame; 25. Pressing ring; 26. Cover; 27. Anti-slip clamp; 28. Slot. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figures 1 to 3 In this embodiment, a sleeve anti-detachment structure for a front fork shock absorber of an electric vehicle includes an anti-detachment component 2 arranged inside a front fork shock absorber body 1.

[0019] Example 2: Please refer to Figures 2 to 3, on the basis of embodiment 1, in order to protect the sleeve from falling off, the anti-falling component 2 in this embodiment includes a gasket 21 and a shock absorber sleeve 22. The gasket 21 is arranged inside the front fork shock absorber main body 1 to serve as a sleeve support point. The gasket 21 is placed at an appropriate position inside the front fork shock absorber main body 1 as a sleeve support point, and the shock absorber sleeve 22 is installed above the gasket 21 to ensure that the sleeve is correctly positioned and covers the key parts of the shock absorber. The shock absorber sleeve 22 is arranged above the gasket 21, and the inner wall of the front fork shock absorber main body 1 is threadedly connected with a screw sleeve 23. The inner wall of the screw sleeve 23 is provided with a connecting frame 24, and a pressure ring 25 is fixed to the lower surface of the connecting frame 24 to prevent the shock absorber sleeve 22 from falling off. A sealing cover 26 is provided on the top of the screw sleeve 23, and the sealing cover 26 is installed on the top of the screw sleeve 23 to ensure that it matches the diameter of the front fork shock absorber main body 1, and check whether the sealing ring is correctly installed to enhance the sealing effect of the sleeve.

[0020] In this embodiment, an anti-slipping clamp 27 is provided inside the front fork shock absorber body 1 to limit the position of the shock absorber sleeve 22. A slot 28 is provided on the outside of the shock absorber sleeve 22 for inserting the anti-slipping clamp 27. The anti-slipping clamp 27 is installed inside the front fork shock absorber body 1, and it is ensured that it can limit the position of the shock absorber sleeve 22. The anti-slipping clamp 27 is inserted into the slot 28 on the outside of the shock absorber sleeve 22 to fix the position of the sleeve.

[0021] In this embodiment, the diameter of the pressure ring 25 is equal to the diameter of the shock absorber sleeve 22, so that it can fully fit with the end of the shock absorber sleeve 22. The screw sleeve 23 is threadedly connected to the inner wall of the front fork shock absorber body 1 to provide a fixed point for the connecting frame 24 and the pressure ring 25. At the same time, the connecting frame 24 and the pressure ring 25 are synchronously moved into the front fork shock absorber body 1 with the screw sleeve 23 to ensure that the pressure ring 25 fully fits with the end of the sleeve. The diameter of the cover 26 is equal to the diameter of the front fork shock absorber body 1, and a sealing ring is provided at the lower end of the cover 26 to enhance the sealing effect of the shock absorber sleeve 22.

[0022] The working principle of the above embodiment is:

[0023] Place the washer 21 at an appropriate position inside the front fork shock absorber body 1 as a support point for the sleeve, install the shock absorber sleeve 22 above the washer 21, ensure that the sleeve is correctly positioned and covers the key parts of the shock absorber, thread the screw sleeve 23 to the inner wall of the front fork shock absorber body 1, and provide a fixing point for the connecting frame 24 and the pressure ring 25. At the same time, the connecting frame 24 and the pressure ring 25 are moved synchronously with the screw sleeve 23 into the front fork shock absorber body 1, ensuring that the pressure ring 25 is fully fitted with the end of the sleeve, install an anti-slip ring 27 inside the front fork shock absorber body 1, and ensure that it can limit the position of the shock absorber sleeve 22, insert the anti-slip ring 27 into the slot 28 on the outside of the shock absorber sleeve 22 to fix the position of the sleeve, and install the cover 26 on the top of the screw sleeve 23, ensuring that it matches the diameter of the front fork shock absorber body 1, and check whether the sealing ring is correctly installed to enhance the sealing effect of the sleeve.

[0024] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0025] If this patent discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), or as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except where it is obviously impossible to use an integrated molding process).

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A sleeve anti-slip structure for a front fork shock absorber of an electric vehicle, characterized by: It comprises an anti-slip assembly (2) arranged inside a front fork shock absorber body (1); The anti-fall-off assembly (2) comprises a washer (21) and a shock absorber sleeve (22), wherein the washer (21) is arranged inside the front fork shock absorber body (1) to serve as a sleeve support point, and the shock absorber sleeve (22) is arranged above the washer (21), and the inner wall of the front fork shock absorber body (1) is threadedly connected with a screw sleeve (23), and the inner wall of the screw sleeve (23) is provided with a connecting frame (24), and a pressure ring (25) is fixed on the lower surface of the connecting frame (24) to prevent the shock absorber sleeve (22) from falling off, and a sealing cover (26) is provided on the top of the screw sleeve (23).

2. The anti-slip structure for a front fork shock absorber of an electric vehicle according to claim 1, characterized in that: An anti-dropout clamping ring (27) is provided inside the front fork shock absorber body (1) to limit the position of the shock absorber sleeve (22).

3. The anti-slip structure for a front fork shock absorber of an electric vehicle according to claim 2, characterized in that: The outer side of the shock absorber sleeve (22) is provided with a slot (28) for inserting the anti-dropout clamping ring (27).

4. The anti-slip structure for a front fork shock absorber of an electric vehicle according to claim 1, characterized in that: The diameter of the pressure ring (25) is equal to the diameter of the shock absorber sleeve (22), so as to fully fit with the end of the shock absorber sleeve (22).

5. The sleeve anti-slip structure for the front fork shock absorber of an electric vehicle according to claim 1, characterized in that: The diameter of the cover (26) is equal to the diameter of the front fork shock absorber body (1), and a sealing ring is provided at the lower end of the cover (26) to enhance the sealing effect of the shock absorber sleeve (22).