Single support spring protective sleeve of bicycle

By using a one-piece molded bicycle single support spring protective cover, the problems of springs being susceptible to corrosion and the complexity of separate sets are solved, achieving the effects of simplified installation, reduced material consumption, and improved protective performance.

CN224225188UActive Publication Date: 2026-05-12谷玉川
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
谷玉川
Filing Date
2025-04-30
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing bicycle single-support springs are susceptible to dust and rain corrosion, leading to rust, loss of elasticity, or breakage. Split-type protective sleeves are complex to install and prone to loosening, and there is material waste and error in the production process.

Method used

The bicycle single support spring protective sleeve is made of one piece, including the protective sleeve body and the one-piece molded contact part. It is installed by being sleeved on the outside of the single support rod and spring. Combined with the limit plate and protrusion design, it provides protection and stability.

Benefits of technology

Simplify the installation process, reduce material waste, improve structural strength and protective performance, and ensure spring stability and support system reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a single support spring protective sleeve for a bicycle. The single support spring protective sleeve comprises a protective sleeve main body and a contact part integrally formed with the top of the protective sleeve main body, a conical containing cavity is formed in the protective sleeve body, and a limiting table is arranged at the top of the containing cavity. An insertion cavity in the contact part is communicated with the accommodating cavity; a bump is arranged at the top of the contact part; the protective sleeve body is arranged on a single supporting rod of a bicycle in a sleeving mode. The single supporting rod is sleeved with a spring, one end of the spring abuts against a limiting part in the middle of the single supporting rod, the spring is sleeved with the protective sleeve body, and the end, away from the limiting part, of the spring abuts against the limiting table. According to the utility model, the protection sleeve main body and the contact part are integrally formed, the body and the plug do not need to be additionally assembled, the protection sleeve can be directly sleeved outside the single support rod and the spring to complete installation, the installation steps are saved, the installation efficiency is obviously improved, and the operation difficulty of a user is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of bicycle supports, specifically to a bicycle single support spring protective sleeve. Background Technology

[0002] In existing bicycle single-support structures, springs are usually directly exposed to the external environment and are subject to long-term erosion by pollutants such as dust, rainwater, and mud, which can easily lead to rust, loss of elasticity, or even breakage of the springs, thereby affecting the stability and service life of the support rod.

[0003] Existing bicycle single support spring protective covers mostly adopt a split structure, usually consisting of a protective cover body and an independent plug. This split design requires the body and plug to be separately fitted onto the single support rod and spring during installation, which is cumbersome and requires high installation precision. It is inconvenient for users, especially in confined spaces where precise alignment is difficult. Furthermore, with frequent use, the individual plug rubs against the support lug, causing wear and tear, leading to loosening or detachment. In addition, the split structure requires separate processing of the body and plug during production, increasing mold complexity, lengthening production processes, and making the dimensional matching of the split components prone to errors, resulting in material waste and increased scrap rate.

[0004] Therefore, there is an urgent need for a protective sleeve with a simple structure, excellent protective performance, and the ability to improve the stability of the spring, in order to solve the above-mentioned technical defects. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a bicycle single support spring protective sleeve in view of the above-mentioned shortcomings of the prior art.

[0006] To achieve its purpose, this utility model adopts the following technical solution:

[0007] A bicycle single support spring protective cover includes: a protective cover body and a contact portion integrally formed with the top of the protective cover body; the protective cover body has a conical cavity inside, and a limiting platform is provided at the top of the cavity;

[0008] The cavity inside the contact portion is connected to the receiving cavity; a protrusion is provided on the top of the contact portion.

[0009] Preferably, the protective sleeve is fitted onto the single support bar of the bicycle.

[0010] Preferably, a spring is fitted on the single support rod, with one end of the spring abutting against the limiting part in the middle of the single support rod, the protective sleeve body is fitted over the spring, and the end of the spring away from the limiting part abutting against the limiting platform.

[0011] Preferably, the top of the single support rod is rotatably connected to the support lug of the bicycle, and the contact portion contacts the support lug.

[0012] The beneficial effects of this utility model are:

[0013] (1) Integrated molding design simplifies the installation process: This utility model adopts an integrated molding structure of the protective sleeve body and the contact part. There is no need to assemble the body and the plug separately. It can be directly sleeved on the outside of the single support rod and the spring to complete the installation. It eliminates the complicated docking steps of the split structure, significantly improves the installation efficiency and reduces the difficulty of operation for users.

[0014] (2) Reduce waste and improve material utilization: Abandon the traditional multi-part processing mode of split structure, complete the overall manufacturing through one-time injection molding or compression molding process, avoid the waste caused by the size mismatch of split parts, simplify the production process and reduce material loss, which meets the requirements of green manufacturing and cost control.

[0015] (3) High structural strength and excellent protective performance: The one-piece molded structure eliminates the weak connection links of the split protective sleeve and avoids the problem of protective failure due to loose parts. The main body of the protective sleeve wraps the spring, and the contact part is in direct contact with the support lug. The overall structure maintains a reliable connection under dynamic and impact conditions, and continuously provides dustproof, waterproof and wear-resistant protection for the spring.

[0016] (4) Functional integration to improve support stability: The design of the limiting platform and the contact part protrusion not only protects the spring, but also limits the spring and ensures stable contact with the support ear. Compared with the mode of independent components realizing a single function in the split structure, this utility model realizes functional integration through integrated design, which further improves the overall reliability of the single support system. Attached Figure Description

[0017] For ease of explanation, this utility model is described in detail below with reference to the specific embodiments and accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the protective sleeve in this embodiment;

[0019] Figure 2 This is the front view of the protective sleeve in this embodiment;

[0020] Figure 3 for Figure 2 Sectional view at point AA;

[0021] Figure 4 This is a schematic diagram showing the protective sleeve and single support rod in their disassembled state in this embodiment;

[0022] Figure 5 This is a schematic diagram showing the installation state of the protective sleeve and the single support rod in this embodiment.

[0023] In the picture:

[0024] 100 - Protective cover body; 110 - Receiving cavity; 120 - Limiting platform; 200 - Contact part; 210 - Insertion cavity; 220 - Protrusion; 300 - Single support rod; 310 - Limiting part; 400 - Spring; 500 - Supporting ear. Detailed Implementation

[0025] The following are specific embodiments of the present invention described in conjunction with the accompanying drawings, further illustrating the technical solution of the present invention. However, the present invention is not limited to these embodiments. Specific details such as particular configurations and components are provided in the following description merely to aid in a comprehensive understanding of the embodiments of the present invention. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present invention. Furthermore, for clarity and brevity, descriptions of known functions and structures have been omitted.

[0026] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0027] like Figure 1-5 As shown, this embodiment provides a bicycle single support spring protective sleeve, including: a protective sleeve body 100 and a contact portion 200 integrally formed with the top of the protective sleeve body 100; the protective sleeve body 100 has a conical cavity 110 inside, and a limiting platform 120 is provided at the top of the cavity 110; the insertion cavity 210 inside the contact portion 200 communicates with the cavity 110; and a protrusion 220 is provided at the top of the contact portion 200.

[0028] Furthermore, the protective sleeve body 100 is fitted onto the single support rod 300 of the bicycle. A spring 400 is fitted onto the single support rod 300. One end of the spring 400 abuts against the limiting part 310 in the middle of the single support rod 300. The protective sleeve body 100 is fitted onto the outside of the spring 400. The end of the spring 100 away from the limiting part 310 abuts against the limiting platform 120 to form an axial fixation. The top of the single support rod 300 is rotatably connected to the support lug 500 of the bicycle. The contact part 200 contacts the support lug 500 to ensure that the protective sleeve moves synchronously when the support rod 300 rotates, avoiding interference.

[0029] When the single support rod 300 is retracted or extended, the spring 400 extends and contracts within the receiving cavity 110, and the limiting platform 120 constrains its maximum compression. The contact part 200 is in continuous contact with the support ear 500, reducing friction and vibration. At the same time, the protective sleeve isolates external contaminants and maintains the spring performance.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

Claims

1. A bicycle single-support spring protective sleeve, characterized in that, include: The protective sleeve body (100) and the contact part (200) integrally formed with the top of the protective sleeve body (100); the protective sleeve body (100) is provided with a conical cavity (110) inside, and a limiting platform (120) is provided at the top of the cavity (110). The insertion cavity (210) inside the contact portion (200) is connected to the receiving cavity (110); a protrusion (220) is provided on the top of the contact portion (200).

2. The bicycle single-support spring protective sleeve according to claim 1, characterized in that, The protective sleeve body (100) is fitted onto the single support rod (300) of the bicycle.

3. A bicycle single-support spring protective sleeve according to claim 2, characterized in that, A spring (400) is fitted on the single support rod (300). One end of the spring (400) abuts against the limiting part (310) in the middle of the single support rod (300). The protective sleeve body (100) is fitted outside the spring (400). The end of the spring (400) away from the limiting part (310) abuts against the limiting platform (120).

4. A bicycle single-support spring protective sleeve according to claim 3, characterized in that, The top of the single support rod (300) is rotatably connected to the support lug (500) of the bicycle, and the contact part (200) contacts the support lug (500).