Buggy brake elastic pin
By adopting structures such as hemispherical heads and limiting rings on the brake springs of children's bicycles, the problem of easy damage to the brake springs of children's bicycles has been solved, and the durability and reliability of the braking system have been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-07
AI Technical Summary
The brake springs of children's bicycles are prone to damage during frequent use, leading to brake failure.
Design a brake spring for children's bicycles, which uses a hemispherical head to contact the brake arm and an arc-shaped surface to disperse the impact force. Combined with a limiting ring, rubber pad and lubrication groove, it reduces wear and friction.
It effectively avoids localized deformation and wear of the brake spring pin, ensuring the reliability and durability of the braking system and preventing brake failure.
Smart Images
Figure CN224090372U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bicycle parts technology, specifically a brake spring for a children's bicycle. Background Technology
[0002] As a green mode of transportation, the reliability of a bicycle's braking system directly impacts riding safety. Early bicycles relied on simple lever brakes or expansion brakes for deceleration, but with increased speed and the growing demand for lightweight designs, modern braking systems have gradually evolved into structures primarily based on V-brakes and disc brakes. These brakes generate braking force by clamping friction pads onto the rim or disc. In this process, the brake spring, as a key connecting and transmission element, emerged: it is typically located at the pivot point between the brake arm and the frame or fork, or within the caliper fixing structure, serving functions of positioning, rotational support, and force transmission.
[0003] With the increasing popularity of bicycles across different age groups, braking systems also exhibit different drawbacks in bicycles designed for different age groups. For example, a bicycle specifically designed for children, intended for them to learn to ride, often results in frequent brake use by children learning to ride, causing the brake spring to be damaged by repeated impacts on the brake arm. To address these issues, this invention provides a children's bicycle brake spring mechanism. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a brake spring for children's bicycles, solving the problem that as bicycles become increasingly popular across different age groups, braking systems also exhibit different drawbacks in bicycles designed for different age groups. For example, a bicycle specifically designed for children, intended to help them learn to ride, often suffers from frequent brake use during learning, leading to damage to the brake spring from repeated impacts on the brake arm.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a child stroller brake spring pin, including a brake spring pin body, wherein a hemispherical head is provided at the front end of the brake spring pin body, the hemispherical head is used to press against the brake arm and drive the brake arm to press tightly against the brake pad, the hemispherical head is arc-shaped and is used to make point contact with the brake arm hole to avoid edge bumping and damage, the arc shape of the hemispherical head disperses the impact force and avoids local deformation.
[0006] Preferably, a limiting ring is fixedly connected to one end of the brake spring pin body near the hemispherical head. The limiting ring is used to install a spring, which is wound around the outer surface of the spring pin body.
[0007] Preferably, a connecting ring is fixedly connected to the back end of the limiting ring, and the connecting ring is used to fix the spring.
[0008] Preferably, a rubber pad is fixedly connected to the front of the limiting ring, and the rubber pad is installed on the brake spring pin body to protect the limiting ring.
[0009] Preferably, the limiting ring has chamfered edges at both ends, and the brake spring pin body has chamfered edges at the end. The chamfered edges and chamfered edges are used to prevent wear between the edges and other components.
[0010] Preferably, a pressure relief hole is provided in the main body of the brake spring pin at the end away from the hemispherical head. The pressure relief hole is used to balance the oil pressure and prevent air resistance.
[0011] Preferably, a lubrication groove is formed in the main body of the brake spring pin body at the end away from the hemispherical head. The lubrication groove is used to store grease and continuously reduce friction.
[0012] Preferably, a weight-reducing hole is provided at the end of the brake spring pin body, and the weight-reducing hole is used to reduce the weight of the brake spring pin body.
[0013] This utility model discloses a brake spring pin for children's vehicles, which has the following beneficial effects: By setting a hemispherical head, the brake spring pin of this children's vehicle will not wear excessively at the end that contacts the brake arm when the brake is used frequently, thus avoiding local deformation of the brake spring pin and preventing brake failure due to damage to the brake spring pin. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a front view structural diagram of the present invention;
[0016] Figure 2 This is a side view of the structure of this utility model;
[0017] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0018] In the diagram: 1. Brake spring pin body; 11. Hemispherical head; 12. Pressure relief hole; 13. Lubrication groove; 14. Spring pin chamfer; 15. Weight reduction hole; 2. Limiting ring; 21. Ring body chamfer; 22. Connecting ring; 23. Rubber pad. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] This application provides a brake spring for children's bicycles, addressing the shortcomings of braking systems in bicycles designed for different age groups, as bicycles become increasingly popular. For example, a bicycle specifically designed for children, intended for learning to ride, often suffers from frequent brake use during learning, leading to damage to the brake spring from repeated impacts on the brake arm.
[0021] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0022] This utility model discloses a brake spring for a children's car.
[0023] Example 1
[0024] According to the appendix Figure 1-3 As shown, the device includes a brake spring pin body 1. A hemispherical head 11 is provided at the front end of the brake spring pin body 1. The hemispherical head 11 is used to press against the brake arm and drive the brake arm to press tightly against the brake pad. The hemispherical head 11 is arc-shaped and is used to make point contact with the brake arm hole to avoid edge collision damage. The arc shape of the hemispherical head 11 disperses the impact force and avoids local deformation. The contact between the hemispherical head 11 and the brake arm hole changes from a surface contact mode to a point contact mode. Compared with a flat or angular design, it can more evenly disperse the compressive stress and avoid metal fatigue or deformation caused by local stress concentration. Traditional right-angle heads are prone to micro-cutting of the edge of the brake arm hole during frequent compression. The continuous arc surface of the hemispherical head 11 eliminates sharp contact points and reduces wear.
[0025] A limiting ring 2 is fixedly connected to one end of the brake spring pin body 1 near the hemispherical head 11. The limiting ring 2 is used to install a spring, which is wrapped around the outer surface of the brake spring pin body 1. A connecting ring 22 is fixedly connected to the back end of the limiting ring 2. The connecting ring 22 is used to fix the spring. A rubber pad 23 is fixedly connected to the front end of the limiting ring 2. The rubber pad 23 is installed on the brake spring pin body 1 and is used to protect the limiting ring 2. The limiting ring 2 has ring body chamfers 21 at both ends. The brake spring pin body 1 has a spring pin chamfer 14 at the end. The spring pin chamfer 14 and the ring body chamfer 21 are used to prevent the edges and corners from wearing with other parts.
[0026] Example 2
[0027] Based on Example 1, according to Appendix Figure 1-3 As shown, the device includes a brake spring pin body 1. A hemispherical head 11 is provided at the front end of the brake spring pin body 1. The hemispherical head 11 is used to press against the brake arm and drive the brake arm to press tightly against the brake pads. The hemispherical head 11 is arc-shaped, used for point contact with the brake arm hole to avoid edge damage. The arc shape of the hemispherical head 11 disperses impact force and avoids local deformation. A pressure relief hole 12 is provided in the body of the brake spring pin body 1 at the end away from the hemispherical head 11. The pressure relief hole 12 is used to balance oil pressure and prevent air lock. A lubrication groove 13 is provided in the body of the brake spring pin body 1 at the end away from the hemispherical head 11. The lubrication groove 13 is used to store grease and continuously reduce friction. A weight reduction hole 15 is provided in the end of the brake spring pin body 1. The weight reduction hole 15 is used to reduce the weight of the brake spring pin body 1.
[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A brake spring for a child stroller, comprising a brake spring body (1), characterized in that, The brake spring pin body (1) has a hemispherical head (11) at the front end. The hemispherical head (11) is used to press against the brake arm and drive the brake arm to press tightly against the brake pad. The hemispherical head (11) is arc-shaped and is used to make point contact with the brake arm hole to avoid edge collision damage. The arc shape of the hemispherical head (11) disperses the impact force and avoids local deformation.
2. The child stroller brake spring pin according to claim 1, characterized in that: A limiting ring (2) is fixedly connected to one end of the brake spring pin body (1) near the hemispherical head (11). The limiting ring (2) is used to install a spring, which is wrapped around the outer surface of the brake spring pin body (1).
3. The child stroller brake spring pin according to claim 2, characterized in that: The back end of the limiting ring (2) is fixedly connected to a connecting ring (22), which is used to fix the spring.
4. The child stroller brake spring pin according to claim 2, characterized in that: A rubber pad (23) is fixedly connected to the front of the limiting ring (2). The rubber pad (23) is installed on the brake spring pin body (1) and is used to protect the limiting ring (2).
5. A child stroller brake spring according to claim 2, characterized in that: The limiting ring (2) has chamfered edges (21) at both ends, and the brake spring pin body (1) has chamfered edges (14) at the end. The chamfered edges (14) and chamfered edges (21) are used to prevent the edges from wearing with other parts.
6. A child stroller brake spring according to claim 1, characterized in that: The brake spring pin body (1) has a pressure relief hole (12) in the body at the end away from the hemispherical head (11). The pressure relief hole (12) is used to balance the oil pressure and prevent air lock.
7. A child stroller brake spring according to claim 1, characterized in that: The brake spring pin body (1) has a lubrication groove (13) in the body at the end away from the hemispherical head (11). The lubrication groove (13) is used to store grease and continuously reduce friction.
8. A child stroller brake spring according to claim 1, characterized in that: The brake spring pin body (1) has a weight reduction hole (15) inside its end, which is used to reduce the weight of the brake spring pin body (1).