Fastening assembly for bicycle

By designing a gear and tooth groove limiting structure on the bicycle thru-axle quick-release lever, combined with a limiting cap, the problem of unstable bicycle wheel fixing is solved, achieving stable wheel installation and convenient disassembly, thus improving riding safety and comfort.

CN223686267UActive Publication Date: 2025-12-19LIUHUI RUBBER METAL IND KUNSHAN CO LTD
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Patent Information

Application Number
CN202520167924.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2025-12-19
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

The existing bicycle thru-axle quick-release levers lack a limiting structure, resulting in unstable wheel fixation and inability to lock properly.

Method used

Design a fastening assembly including a quick-release lever, a handlebar seat, an eccentric handle, a connecting pin, and a limiting cap. The handlebar seat and quick-release lever are locked in place by the engagement of gears and teeth, and the limiting cap is used to fix the assembly to the bicycle frame.

Benefits of technology

It achieves stable wheel fixation and convenient assembly/disassembly, improving the safety and comfort of bicycle use.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223686267U_ABST
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Abstract

The utility model discloses a fastening component for a bicycle, which comprises a quick-release rod, a handle seat is arranged at one end of the quick-release rod, an eccentric handle is arranged at one end, not connected with the quick-release rod, of the handle seat, a first gasket is arranged between the eccentric handle and the handle seat, and a second gasket is arranged between the quick-release rod and the handle seat. A connecting pin is arranged at the end of the eccentric handle, a bolt penetrates through the middle of the connecting pin, and the bolt penetrates through the connecting pin and the handle seat to be connected with the quick release rod. And the eccentric handle is rotatably connected with the connecting pin and the bolt. The gear is arranged at one end of the quick release rod, the handle seat is sleeved on the gear, and the tooth socket matched with the gear is arranged in the handle seat, so that the handle seat is forced to be tightly pressed on the frame after the eccentric handle rotates, and the purpose of fixing the wheel is achieved; meanwhile, the tooth groove is matched with the gear, so that the handle seat and the quick release rod are mutually limited, and the quick release rod and the handle seat can be effectively guaranteed to be locked.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to fastening assembly technical field, specifically for a kind of fastening assembly for bicycle. BACKGROUND

[0002] As a common means of transport and sports equipment, the fastening degree of each part of bicycle is directly related to the safety and comfort of riding. One of the commonly used is a bicycle cylinder shaft quick release assembly, which can quickly disassemble or install the bicycle wheel through the cylinder shaft quick release assembly.

[0003] In the prior art, the utility model discloses a quick release rod for bicycle cylinder shaft, which comprises a rod main body, a shock-absorbing buffer structure is arranged on one side of the surface of the rod main body, a main body sticking surface polishing structure is arranged on the side of the rod main body away from the shock-absorbing buffer structure, and two groups of carbon fiber main body torsion-resistant structures are symmetrically arranged on the central part of the surface of the rod main body; a copper adjusting metal piece is sleeved on one end of the surface of the rod main body; a carbon fiber outer supplementary yarn layer is sleeved on the surface of the rod main body at the position of the main body sticking surface polishing structure, and a tooth main body is sleeved on the outer surface of the carbon fiber outer supplementary yarn layer. The combination of the composite material main body and the metal piece adopts a mechanical reverse buckle by using the secondary outer supplementary composite material, so that the combination strength of the product is enhanced; at the same time, the product has a torsion-resistant function, the use strength of the product is improved, the operation is more rapid, the operation process is shortened, and the economic value is higher.

[0004] The quick release rod for bicycle cylinder shaft provided by the above-mentioned patent mainly enhances the strength of the product. The quick release rod does not have a limiting structure and cannot be locked in position when fixing the wheel. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a fastening assembly for bicycle, which aims to improve the problem that the quick release rod of the existing bicycle cylinder shaft does not have a limiting structure and cannot be locked in position when fixing the wheel.

[0006] The utility model is implemented as follows:

[0007] A fastening assembly for bicycle, comprising a quick release rod, one end of the quick release rod is provided with a handle seat, one end of the handle seat, which is not connected with the quick release rod, is provided with an eccentric handle, a first gasket is arranged between the eccentric handle and the handle seat, and a second gasket is arranged between the quick release rod and the handle seat; a connecting pin is arranged at the end of the eccentric handle, a bolt passes through the middle part of the connecting pin, and the bolt, the connecting pin and the handle seat are connected with the quick release rod; the eccentric handle, the connecting pin and the bolt are rotatably connected.

[0008] Preferably, one end of the quick release rod is provided with a gear, a threaded hole is formed in the middle of the gear, and a through hole is formed in the middle of the quick release rod.

[0009] Preferably, the middle of the handle seat is provided with a counterbore, and the handle seat is provided with an opening along one end provided with the eccentric handle, the inner side of the handle seat is provided with a gasket groove, and the inner side of one end of the handle seat facing the quick release rod is provided with a tooth groove matched with the gear.

[0010] Preferably, one end of the eccentric handle is provided with a cam, a sleeve hole is formed in the middle of the cam, and a guide hole is formed in the side of the cam, which is aligned with the bolt for guiding the eccentric handle when rotating.

[0011] Preferably, the connecting pin is inserted into the sleeve hole, and a through hole is formed in the middle of the connecting pin, and a step is formed in the inner side of the through hole for limiting the bolt.

[0012] Preferably, the front part of the bolt is provided as a shaft, and a stud is arranged at the rear end of the shaft and connected with the quick release rod through threads.

[0013] Preferably, the limit cap is further provided, and one end of the limit cap facing the quick release rod is provided with a connecting screw rod connected with the end of the quick release rod without the handle seat through threads.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The utility model discloses a gear is arranged at one end of the quick release rod, a handle seat is arranged on the gear, a tooth groove matched with the gear is arranged in the handle seat, so that the handle seat is pressed on the frame after the eccentric handle rotates, the purpose of fixing the wheel is achieved, and the cooperation of the tooth groove and the gear limits the handle seat and the quick release rod, so that the quick release rod and the handle seat are locked, and the stable installation and use of the wheel are ensured.

[0016] 2. The utility model discloses a limit cap is arranged at one end of the quick release rod, the limit cap can fix the quick release rod on the bicycle frame, so that the purpose of fixing the wheel is achieved, and the wheel is convenient to disassemble and use. DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of the utility model under the oblique front view angle of the whole;

[0018] Figure 2 It is the structure schematic diagram of the utility model under the oblique front view angle of the whole after being disassembled;

[0019] Figure 3 It is the structure schematic diagram of the quick release rod of the utility model;

[0020] Figure 4 is the structural schematic view of the handle seat in the oblique front view angle of the utility model;

[0021] Figure 5 is the structural schematic view of the handle seat in the oblique rear view angle of the utility model;

[0022] Figure 6 is the structural schematic view of the eccentric handle of the utility model;

[0023] Figure 7 is the structural schematic view of the connecting pin of the utility model;

[0024] Figure 8 is the structural schematic view of the bolt of the utility model;

[0025] Figure 9 is the structural schematic view of the limiting pressure cap of the utility model.

[0026] In the figure: 1, quick release rod; 11, gear; 12, threaded hole; 2, handle seat; 21, counterbore; 22, notch; 23, gasket groove; 24, tooth slot; 3, eccentric handle; 31, cam; 32, sleeve hole; 33, guide port; 4, connecting pin; 41, through hole; 5, bolt; 51, shaft; 52, stud; 6, first gasket; 7, limiting pressure cap; 71, connecting screw; 8, second gasket. DETAILED DESCRIPTION

[0027] In the utility model, unless another explicit provision and limitation, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be broad understanding, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication or interaction relationship of two elements inside two elements. For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the terms in the utility model.

[0028] The following will be further described in combination with the drawings and specific embodiments:

[0029] Embodiment 1

[0030] As Figure 1 And Figure 2As shown, a fastening assembly for a bicycle includes a quick release rod 1, one end of which is provided with a handle seat 2, which is convenient for mutual positioning with the quick release rod 1 to ensure the stability of the quick release rod 1. The end of the handle seat 2 not connected with the quick release rod 1 is provided with an eccentric handle 3, which is convenient for being pressed to the handle seat 2 by rotating, so that the handle seat 2 is pressed tightly on the bicycle frame, thereby achieving the purpose of fixing the wheel on the bicycle frame. A first washer 6 is arranged between the eccentric handle 3 and the handle seat 2, and a second washer 8 is arranged between the quick release rod 1 and the handle seat 2; the first washer 6 and the second washer 8 are convenient for buffering between the handle seat 2 and the eccentric handle 3 and between the handle seat 2 and the quick release rod 1. The end of the eccentric handle 3 is provided with a connecting pin 4, the middle of which is provided with a bolt 5 penetrating through, and the bolt 5 is connected with the quick release rod 1 and the handle seat 2 penetrating through the connecting pin 4 and the handle seat 2; the connecting pin 4 cooperates with the bolt 5 to facilitate the installation and use of the handle seat 2 and the eccentric handle 3. The eccentric handle 3, the connecting pin 4 and the bolt 5 are rotatably connected, which is convenient for the eccentric handle 3 to rotate and press the handle seat 2 tightly.

[0031] As shown, Figure 3 The end of the quick release rod 1 is provided with a gear 11, which is convenient for cooperating with the handle seat 2 to be mutually positioned with the quick release rod 1. The middle of the gear 11 is provided with a threaded hole 12, which is convenient for being connected with the bolt 5. The middle of the quick release rod 1 is provided with a through hole penetrating through, which is convenient for connecting the quick release rod 1 with other components.

[0032] As shown, Figure 4 and Figure 5 The middle of the handle seat 2 is provided with a counterbore 21, which is convenient for penetrating through the handle seat 2 by the bolt 5. The end of the handle seat 2 along which the eccentric handle 3 is arranged is provided with a notch 22, which is convenient for cooperating with the eccentric handle 3 to avoid interference between the eccentric handle 3 and the handle seat 2. The inner side of the handle seat 2 is provided with a washer groove 23, which is convenient for installing the first washer 6 and the second washer 8. The inner side of the end of the handle seat 2 towards the quick release rod 1 is provided with a tooth groove 24, which is matched with the gear 11. The cooperation of the tooth groove 24 and the gear 11 can lock the quick release rod 1 fixedly.

[0033] As shown, Figure 6 The end of the eccentric handle 3 is provided with a cam 31, the middle of which is provided with a sleeve hole 32. The cooperation of the cam 31 and the sleeve hole 32 is convenient for cooperating with the connecting pin 4, which is convenient for connecting the eccentric handle 3 with the quick release rod 1 and the handle seat 2 through the connecting pin 4 and the bolt 5. The side of the cam 31 is provided with a guide hole 33, which is aligned with the bolt 5 and is used for guiding the eccentric handle 3 when it rotates.

[0034] As shown, Figure 7 The connecting pin 4 is inserted into the inside of the sleeve hole 32, and the middle of the connecting pin 4 is provided with a through hole 41, which is convenient for the bolt 5 to penetrate through the connecting pin 4. The inner side of the through hole 41 is provided with a step, which is used for limiting the bolt 5.

[0035] As shown in Figure 8 , the front part of the bolt 5 is provided as a shaft 51, which is convenient for the bolt 5 to pass through the connecting pin 4 and the handle seat 2, and is matched with the connecting pin 4 and the handle seat 2 for use. The rear end of the shaft 51 is provided with a stud 52, which is threadedly connected with the quick release rod 1.

[0036] Embodiment 2

[0037] As shown in Figure 1 and Figure 2 , a fastening assembly for a bicycle includes a quick release rod 1, one end of which is provided with a handle seat 2, which is convenient for being limited with the quick release rod 1 to ensure the stability of the quick release rod 1. The end of the handle seat 2 not connected with the quick release rod 1 is provided with an eccentric handle 3, which is convenient for being pressed to the handle seat 2 by rotating, so that the handle seat 2 is pressed tightly on the bicycle frame, thereby achieving the purpose of fixing the wheel on the bicycle frame. A first washer 6 is arranged between the eccentric handle 3 and the handle seat 2, and a second washer 8 is arranged between the quick release rod 1 and the handle seat 2; the first washer 6 and the second washer 8 are convenient for buffering between the handle seat 2 and the eccentric handle 3 and between the handle seat 2 and the quick release rod 1. The end of the eccentric handle 3 is provided with a connecting pin 4, the middle of which is provided with a bolt 5 passing through, and the bolt 5 is connected with the quick release rod 1 by passing through the connecting pin 4 and the handle seat 2; the connecting pin 4 cooperates with the bolt 5 to facilitate the installation and use of the handle seat 2 and the eccentric handle 3. The eccentric handle 3, the connecting pin 4 and the bolt 5 are rotatably connected, which is convenient for the eccentric handle 3 to rotate and press the handle seat 2 tightly.

[0038] As shown in Figure 3 , one end of the quick release rod 1 is provided with a gear 11, which is convenient for matching the handle seat 2 so that it is limited with the quick release rod 1. The middle of the gear 11 is provided with a threaded hole 12, which is convenient for being connected with the bolt 5. The middle of the quick release rod 1 is provided with a through hole, which is convenient for connecting the quick release rod 1 with other components.

[0039] As shown in Figure 4 and Figure 5 , the middle of the handle seat 2 is provided with a counterbore 21, which is convenient for the bolt 5 to pass through the handle seat 2. The end of the handle seat 2 along the eccentric handle 3 is provided with a notch 22, which is convenient for matching the eccentric handle 3 to avoid interference between the eccentric handle 3 and the handle seat 2. The inner side of the handle seat 2 is provided with a washer groove 23, which is convenient for installing the first washer 6 and the second washer 8. The inner side of the end of the handle seat 2 towards the quick release rod 1 is provided with a tooth groove 24, which matches the gear 11. The matching of the tooth groove 24 and the gear 11 can lock the quick release rod 1 fixedly.

[0040] As shown in Figure 6As shown, eccentric handle 3 one end is provided with cam 31, cam 31 middle part is provided with sleeve hole 32, cam 31 fits sleeve hole 32 is convenient to match connecting pin 4, convenient eccentric handle 3 through connecting pin 4 and bolt 5 with quick release rod 1 and handle seat 2 connection. And cam 31 side is provided with guide port 33, guide port 33 is aligned with bolt 5 setting, for when the eccentric handle 3 rotation is guided.

[0041] As shown, Figure 7 Connecting pin 4 is inserted into the inside of sleeve hole 32, and the middle part of connecting pin 4 is provided with a through hole 41, which is convenient for bolt 5 to pass through connecting pin 4. The inside of the through hole 41 is provided with a step for limiting the bolt 5.

[0042] As shown, Figure 8 Bolt 5 front part is set as shaft 51, shaft 51 is convenient for bolt 5 to pass through connecting pin 4 and handle seat 2, and is matched with connecting pin 4 and handle seat 2. The rear end of the shaft 51 is provided with a stud 52, which is threadedly connected with the quick release rod 1.

[0043] As shown, Figure 1 And Figure 9 As shown, it also includes a limiting cap 7, which is provided with a connecting screw 71 at one end towards the quick release rod 1, and the connecting screw 71 is threadedly connected with the end of the quick release rod 1 without handle seat 2. This structure is convenient for connecting the entire fixing assembly with the bicycle wheel and frame through the limiting cap 7.

[0044] Working principle: handle as the operating end, around the bolt 5 shaft fixed on the head of quick release rod 1 rotation. The root of the handle forms a cam 31, which cooperates with the handle seat 2. When the handle moves from the open position to the closed position, the cam 31 pushes the handle seat 2, reducing the distance between the handle seat 2 and the limiting cap 7 at the other end of the quick release rod 1, thereby tightening the entire fastening assembly. To open the quick release, just turn the handle in the opposite direction, make the cam 31 mechanism drive the handle seat 2 away from the nut, thereby releasing the fastening of the wheel, which can be easily installed or replaced.

[0045] As described above, by providing a gear 11 at one end of the quick release rod 1, a handle seat 2 is provided on the gear 11, and a tooth groove 24 is provided inside the handle seat 2 which cooperates with the gear 11. In this way, after the eccentric handle 3 is rotated, the handle seat 2 is forced to press tightly on the frame, achieving the purpose of fixing the wheel. At the same time, the cooperation of the tooth groove 24 and the gear 11 makes the handle seat 2 and the quick release rod 1 limit each other, which can effectively ensure that the quick release rod 1 and the handle seat 2 are locked, thereby ensuring the stable installation and use of the wheel.

[0046] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fastening assembly for a bicycle comprising a quick release lever (1), characterized in that, The quick release rod (1) is provided with a handle seat (2) at one end, the handle seat (2) is provided with an eccentric handle (3) at the end not connected with the quick release rod (1), a first washer (6) is arranged between the eccentric handle (3) and the handle seat (2), and a second washer (8) is arranged between the quick release rod (1) and the handle seat (2); the eccentric handle (3) is provided with a connecting pin (4) at the end, a bolt (5) is arranged through the middle of the connecting pin (4), and the bolt (5) is connected with the quick release rod (1) by penetrating the connecting pin (4) and the handle seat (2); the eccentric handle (3), the connecting pin (4) and the bolt (5) are rotatably connected.

2. A fastening assembly for a bicycle as defined in claim 1, characterized in that The quick release rod (1) is provided with a gear (11) at one end, the gear (11) is provided with a threaded hole (12) in the middle, and the quick release rod (1) is provided with a through hole penetrating the middle.

3. A fastening assembly for a bicycle as defined in claim 2, characterized in that The handle seat (2) is provided with a counterbore (21) in the middle, and the handle seat (2) is provided with a notch (22) along the end provided with the eccentric handle (3), the handle seat (2) is provided with a washer groove (23) on the inner side, the handle seat (2) is provided with a tooth groove (24) on the inner side of the end facing the quick release rod (1), and the tooth groove (24) is matched with the gear (11).

4. A fastening assembly for a bicycle as defined in claim 1, wherein The eccentric handle (3) is provided with a cam (31) at one end, the cam (31) is provided with a sleeve hole (32) in the middle, and the cam (31) is provided with a guide hole (33) on the side, which is aligned with the bolt (5) and used for guiding the eccentric handle (3) when rotating.

5. A fastening assembly for a bicycle as defined in claim 1, wherein The connecting pin (4) is inserted into the sleeve hole (32), and the connecting pin (4) is provided with a through hole (41) in the middle, and the through hole (41) is provided with a step on the inner side, which is used for limiting the bolt (5).

6. A fastening assembly for a bicycle as defined in claim 1, wherein The bolt (5) is provided with a shaft (51) at the front part, the shaft (51) is provided with a stud (52) at the rear end, and the stud (52) is threadedly connected with the quick release rod (1).

7. A fastening assembly for a bicycle as claimed in any one of claims 1 to 6, wherein, A limiting pressure cap (7) is further included, the limiting pressure cap (7) is provided with a connecting screw rod (71) at the end facing the quick release rod (1), and the connecting screw rod (71) is threadedly connected with the end of the quick release rod (1) not provided with the handle seat (2).