A buffer device for a bicycle folding device

By introducing fixed buffer components and position stabilizing components into the bicycle folding mechanism, the problem of large space occupation during the fixing and buffering process of the bicycle folding mechanism is solved, achieving more efficient space utilization and structural protection.

CN224427683UActive Publication Date: 2026-06-30CHANGWEIXIN (DONGGUAN) METAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGWEIXIN (DONGGUAN) METAL TECH CO LTD
Filing Date
2025-09-17
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing bicycle folding mechanisms occupy a lot of space during the fixing and cushioning process, resulting in low space utilization.

Method used

A bicycle folding device with a fixed buffer assembly and a position stabilizing assembly was designed. It provides effective cushioning and shock absorption through the combination of a buffer pad, a damper, a connecting rod and a rubber pad, and ensures stable connection of the components through the cooperation of a plug and a positioning rod.

Benefits of technology

It effectively reduces the space occupied by the cushioning device, improves space utilization, protects the bicycle structure during impact, prevents components from falling off, and facilitates maintenance and repair.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the technical field of bicycle folding devices and discloses a buffer device for a bicycle folding device, including a folding device body. A fixed buffer assembly is installed on the surface of the folding device body. The fixed buffer assembly includes a stabilizing plate. One end of the folding device body is attached to the stabilizing plate. Grooved plates are symmetrically installed on the surface of the stabilizing plate. A buffer pad is installed on the surface of the grooved plate. A connecting plate is installed on the side surface of the buffer pad near the folding device body. A damper is installed on the surface of the connecting plate. The telescopic end of the damper passes through the connecting plate and is connected to an insert block provided on one side surface of the connecting plate. The insert block is inserted into a slot opened on the surface of the folding device body. This utility model has the advantage of avoiding the occupation of a large amount of space when fixing and buffering the folding device, further improving the space utilization rate and reducing space waste.
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Description

Technical Field

[0001] This utility model belongs to the field of bicycle folding device technology, specifically a buffer device for a bicycle folding device. Background Technology

[0002] Bicycles are an indispensable means of transportation in people's daily lives. As people's living standards continue to improve, their requirements for bicycles are also getting higher and higher. Folding bicycles, with their novel and compact structure, are becoming increasingly popular.

[0003] Meanwhile, the announcement number CN219790415U, "A buffer device for a bicycle folding device," describes a buffer device for a bicycle folding device that includes a front folding block, a rear folding block movably connected to the outer side of the front folding block, a handle movably connected to one side of the front folding block, a fixing plate fixedly connected to one side of the handle, a bolt movably connected inside the fixing plate, and a buffer device movably connected to the outer side of the bolt. This utility model, by providing a handle and a buffer device, facilitates the fixation of the folding device and extends its service life. Even when the internal parts wear down due to vibration, it can still be firmly fixed together, ensuring riding safety.

[0004] The above-mentioned technical solution requires the opening and closing of handles and buffer devices during use to fix and buffer the folding device. The handles occupy a lot of space after opening and closing, resulting in a significant waste of space utilization.

[0005] Therefore, a buffer device for a bicycle folding device is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a buffer device for a bicycle folding mechanism, which has the advantages of avoiding the occupation of a large amount of space when fixing and buffering the folding mechanism, further improving space utilization and reducing space waste.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a buffer device for a bicycle folding mechanism, comprising a folding mechanism body, wherein a fixed buffer assembly is mounted on the surface of the folding mechanism body;

[0008] The fixed buffer assembly includes a stabilizing plate. One end of the folding body is attached to the stabilizing plate. Grooved plates are symmetrically installed on the surface of the stabilizing plate. A buffer pad is installed on the surface of the grooved plate. A connecting plate is installed on the side surface of the buffer pad near the folding body. A damper is installed on the surface of the connecting plate. The telescopic end of the damper passes through the connecting plate and is connected to an insert block disposed on one side surface of the connecting plate. The insert block is inserted into a slot opened on the surface of the folding body. A position stabilizing component is installed on the surface of the insert block.

[0009] Preferably, a connecting rod is slidably connected in the cavity inside the grooved plate, one end of the connecting rod passing through the grooved plate and connected to the connecting plate.

[0010] Preferably, a rubber pad is installed in the cavity inside the grooved plate, and the rubber pad is connected to the connecting rod.

[0011] Preferably, friction plates are installed in the grooves symmetrically opened on the surface of the insert block, and the friction plates are in contact with the slots opened on the surface of the folding device body.

[0012] Preferably, the two sets of the inserts are inserted symmetrically on both sides of the folder body.

[0013] Preferably, the position stabilization component includes an adjustment plate, which is slidably connected in a groove on the surface of the insert block. A positioning plate is mounted on the surface of the adjustment plate, which is inserted into a positioning groove on the surface of the folding body. A positioning rod is slidably connected in a through hole on the surfaces of the adjustment plate and the positioning plate. Both ends of the positioning rod pass through the adjustment plate and the positioning plate in sequence and are installed in the groove on the surface of the insert block.

[0014] Preferably, a return spring is sleeved on the surface of the positioning rod, one end of the return spring is connected to the adjusting plate, and the other end of the return spring is installed in a groove opened on the surface of the insert block.

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

[0016] 1. This utility model incorporates a fixed buffer assembly. The buffer pad can initially buffer external forces, and the damper can dissipate energy through expansion and contraction when impacted, providing more effective buffering and shock absorption, reducing damage to the folding mechanism body, and protecting the bicycle's structure and components. The connecting rod slides within the grooved plate, assisting the connecting plate and buffer pad in making a certain degree of displacement when impacted. Simultaneously, the connecting rod is connected to the rubber pad, which further enhances the buffering effect, ensuring the stability of the buffering process, greatly improving the buffering effect on the folding mechanism body, and reducing the space occupied by the device, thus avoiding a large device size and reduced space utilization.

[0017] 2. This utility model achieves positional stability of the insert block by setting a position stabilizing component, which prevents the fixed buffer component from falling off during use and facilitates maintenance and repair of the fixed buffer component, further improving the performance of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the stabilizing plate and grooved plate of this utility model;

[0020] Figure 3 This is a partial cross-sectional structural diagram of the grooved plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the insert block and friction plate of this utility model;

[0022] Figure 5 This is a partial cross-sectional structural diagram of the folding device body of this utility model.

[0023] In the diagram: 1. Folder body; 2. Fixed buffer assembly; 21. Stabilizing plate; 22. Groove plate; 23. Buffer pad; 24. Connecting plate; 25. Damper; 26. Insert block; 27. Connecting rod; 28. Rubber pad; 29. ​​Friction plate; 3. Position stabilizing assembly; 31. Adjusting plate; 32. Positioning plate; 33. Positioning rod; 34. Return spring. Detailed Implementation

[0024] 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.

[0025] like Figures 1 to 5As shown, this utility model provides a buffer device for a bicycle folding device, including a folding device body 1, and a fixed buffer assembly 2 is installed on the surface of the folding device body 1.

[0026] The fixed buffer assembly 2 includes a stabilizing plate 21. The stabilizing plate 21 is attached to one end of the folding body 1. A grooved plate 22 is symmetrically installed on the surface of the stabilizing plate 21. A buffer pad 23 is installed on the surface of the grooved plate 22. A connecting plate 24 is installed on the side surface of the buffer pad 23 near the folding body 1. A damper 25 is installed on the surface of the connecting plate 24. The telescopic end of the damper 25 passes through the connecting plate 24 and is connected to a plug 26 located on one side surface of the connecting plate 24. The plug 26 is inserted into a slot opened on the surface of the folding body 1. A position stabilizing assembly 3 is installed on the surface of the plug 26. The buffer pad 23 can initially buffer external forces. The damper 25 can dissipate energy by telescoping when impacted, providing more effective buffering and shock absorption, reducing damage to the folding body 1, protecting the bicycle's structure and components, greatly improving the buffering effect on the folding body 1, and reducing the space occupied by the device, avoiding reduced space utilization due to the large size of the device.

[0027] Specifically, a connecting rod 27 is slidably connected in the cavity inside the grooved plate 22. One end of the connecting rod 27 passes through the grooved plate 22 and is connected to the connecting plate 24. The connecting rod 27 slides in the grooved plate 22, which can assist the connecting plate 24 and the buffer pad 23 to make a certain degree of displacement when subjected to impact.

[0028] like Figures 1 to 5 As shown, a rubber pad 28 is installed in the cavity inside the groove plate 22. The rubber pad 28 is connected to the connecting rod 27. The rubber pad 28 can further play a buffering role, ensuring the stability of the buffering process and greatly improving the buffering effect on the folding device body 1.

[0029] Furthermore, friction plates 29 are installed in the grooves symmetrically opened on the surface of the insert 26. The friction plates 29 fit into the slots opened on the surface of the folder body 1, increasing the friction between the insert 26 and the folder body 1, ensuring that the insert 26 will not easily come out of the slot during the buffering process, and ensuring the stability of the connection between the fixed buffer assembly 2 and the folder body 1.

[0030] It is worth noting that the two sets of inserts 26 are symmetrically inserted on both sides of the folder body 1.

[0031] like Figures 1 to 5As shown, the position stabilization component 3 includes an adjustment plate 31. The adjustment plate 31 is slidably connected in a groove on the surface of the insert 26. A positioning plate 32 is installed on the surface of the adjustment plate 31. The positioning plate 32 is inserted into a positioning groove on the surface of the folding body 1. A positioning rod 33 is slidably connected in a through hole on the surfaces of the adjustment plate 31 and the positioning plate 32. The two ends of the positioning rod 33 pass through the adjustment plate 31 and the positioning plate 32 in sequence and are installed in the groove on the surface of the insert 26. This achieves position stabilization of the insert 26, prevents the fixed buffer component 2 from falling off during use, and facilitates maintenance and repair of the fixed buffer component 2, further improving the performance of the device.

[0032] It is worth emphasizing that a return spring 34 is sleeved on the surface of the positioning rod 33. One end of the return spring 34 is connected to the adjusting plate 31, and the other end of the return spring 34 is installed in the groove opened on the surface of the insert block 26, so as to facilitate the operation of the operator.

[0033] The structures such as the folding body 1 and the damper 25 are existing technologies and will not be described in detail. Their working principle is a well-known technology, and the appropriate model is selected according to the actual use, so it will not be explained in detail.

[0034] Working principle and process: When installing the fixed buffer assembly 2, firstly, attach the stabilizing plate 21 to one end of the folder body 1, ensuring close contact between the stabilizing plate 21 and the contact surface of the folder body 1. Then, the operator presses the adjusting plate 31, causing the adjusting plate 31 to slide the positioning plate 32 on the surface of the positioning rod 33. This causes the return spring 34 to deform. Then, the two sets of inserts 26 are symmetrically inserted into the slots opened on the surface of the folder body 1, so that the friction plates 29 of the inserts 26 are in contact with the inner wall of the slots, increasing the friction between the inserts 26 and the folder body 1. The friction between the folding body 1 ensures that the insert 26 will not easily come out of the slot during the buffering process, thus ensuring the stability of the connection between the fixed buffer assembly 2 and the folding body 1. Then, the operator releases the adjusting plate 31, the reset spring 34 returns to its shape, and then drives the positioning plate 32 to be inserted into the positioning groove opened on the surface of the folding body 1, thereby stabilizing the position of the insert 26, preventing the fixed buffer assembly 2 from falling off during use, and making it convenient to maintain and repair the fixed buffer assembly 2, further improving the performance of the device.

[0035] When the folding body 1 is impacted by an external force, the impact force is transmitted to the buffer pad 23. The buffer pad 23 first absorbs part of the impact force. At the same time, the connecting plate 24 is also subjected to the impact force. Since the telescopic end of the damper 25 is connected to the insert 26, and the insert 26 is inserted into the slot on the surface of the folding body 1, the connecting plate 24 will push the telescopic end of the damper 25, and the damper 25 will start to work, further absorbing and dissipating the impact force and reducing the impact on the folding body 1. The connecting rod 27 inside the groove plate 22 is connected to the connecting plate 24. When the connecting plate 24 moves, the connecting rod 27 will slide in the cavity inside the groove plate 22. The rubber pad 28 connected to one end of the connecting rod 27 will also play a role in buffering and shock absorption, absorbing part of the impact force. The buffering effect is further enhanced by the buffer pad 23, which can initially buffer external forces. The damper 25 can dissipate energy by extending and retracting when impacted, providing more effective buffering and shock absorption, reducing damage to the folding device body 1, and protecting the structure and components of the bicycle. The connecting rod 27 slides in the groove plate 22, which can assist the connecting plate 24 and the buffer pad 23 to make a certain degree of displacement when impacted. At the same time, the connecting rod 27 is connected to the rubber pad 28, which can further play a buffering role, ensuring the stability of the buffering process, greatly improving the buffering effect on the folding device body 1, and reducing the space occupied by the device, avoiding a large device size, and thus reducing the space utilization rate.

[0036] After the external impact disappears, components such as damper 25, rubber pad 28, and return spring 34 will gradually return to their initial state, preparing for the next buffering action. The entire buffer device will remain on the folder body 1, ready to respond to any possible external impacts and continuously protect the folder body 1.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] 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. A buffer device for a bicycle folding mechanism, comprising a folding mechanism body (1), characterized in that: A fixed buffer assembly (2) is installed on the surface of the folder body (1); The fixed buffer assembly (2) includes a stabilizing plate (21). The stabilizing plate (21) is attached to one end of the folding body (1). The surface of the stabilizing plate (21) is symmetrically equipped with a grooved plate (22). The surface of the grooved plate (22) is equipped with a buffer pad (23). The side surface of the buffer pad (23) near the folding body (1) is equipped with a connecting plate (24). The surface of the connecting plate (24) is equipped with a damper (25). The telescopic end of the damper (25) passes through the connecting plate (24) and is connected to a plug (26) provided on one side surface of the connecting plate (24). The plug (26) is inserted into a slot opened on the surface of the folding body (1). The surface of the plug (26) is equipped with a position stabilizing assembly (3).

2. The buffer device for a bicycle folding mechanism according to claim 1, characterized in that: A connecting rod (27) is slidably connected in the cavity inside the grooved plate (22). One end of the connecting rod (27) passes through the grooved plate (22) and is connected to the connecting plate (24).

3. The buffer device for a bicycle folding mechanism according to claim 2, characterized in that: A rubber pad (28) is installed in the cavity inside the groove plate (22), and the rubber pad (28) is connected to the connecting rod (27).

4. The buffer device for a bicycle folding mechanism according to claim 3, characterized in that: Friction pieces (29) are installed in the grooves symmetrically opened on the surface of the insert (26), and the friction pieces (29) are in contact with the slots opened on the surface of the folder body (1).

5. The buffer device for a bicycle folding mechanism according to claim 4, characterized in that: The two sets of inserts (26) are symmetrically inserted into both sides of the folder body (1).

6. The buffer device for a bicycle folding mechanism according to claim 1, characterized in that: The position stabilization component (3) includes an adjustment plate (31). The adjustment plate (31) is slidably connected in a groove on the surface of the insert (26). A positioning plate (32) is installed on the surface of the adjustment plate (31). The positioning plate (32) is inserted into a positioning groove on the surface of the folder body (1). A positioning rod (33) is slidably connected in a through hole on the surfaces of the adjustment plate (31) and the positioning plate (32). The two ends of the positioning rod (33) pass through the adjustment plate (31) and the positioning plate (32) in sequence and are installed in a groove on the surface of the insert (26).

7. The buffer device for a bicycle folding mechanism according to claim 6, characterized in that: A reset spring (34) is fitted on the surface of the positioning rod (33). One end of the reset spring (34) is connected to the adjusting plate (31), and the other end of the reset spring (34) is installed in a groove opened on the surface of the insert (26).