A quick-release anti-slip locking device for carbon fiber bicycle wheelsets

Abstract

This utility model belongs to the field of carbon fiber bicycle technology and discloses a quick-release anti-loosening locking device for carbon fiber bicycle wheelsets. It includes a long rod screw, with a fixing head fixedly connected to the left end of the long rod screw and a nut threadedly connected to the right end. A locking component is provided at the position corresponding to the nut on the right end of the long rod screw. The locking component forms an active and reliable locking force, effectively resisting the impact of vibration and bumps on the nut connection during riding. Compared with traditional structures relying on threaded self-locking, the anti-loosening reliability is significantly improved. At the same time, it facilitates the disassembly and assembly of the nut, balancing locking stability and ease of use. The positioning component assists the nut in maintaining stability in the locked state, preventing unexpected displacement or rotation due to continuous vibration, further improving the overall anti-loosening performance of the quick-release device and ensuring the reliable connection between the carbon fiber wheelset and the frame under complex riding conditions.

Description

Technical Field

[0001] This utility model belongs to the field of carbon fiber bicycle technology, specifically a quick-release anti-detachment locking device for carbon fiber bicycle wheelsets. Background Technology

[0002] Quick-release mechanisms are key components for the rapid installation and removal of bicycle wheels and are widely used in various types of bicycles. However, in actual riding, especially on bumpy roads or under prolonged vibration, traditional quick-release mechanisms often suffer from loose nuts, leading to a decrease in the reliability of the connection between the wheelset and the frame. This not only affects the riding experience but also poses a safety hazard of the wheelset falling off. For carbon fiber bicycle wheelsets, due to the mechanical properties of carbon fiber, the requirements for the stability and anti-loosening performance of the connection structure are even more stringent. If the quick-release mechanism does not lock effectively, it may also accelerate the damage to carbon fiber components due to localized stress concentration.

[0003] Chinese patent application number 202221367075.X discloses a quick-release structure for bicycle wheels, including a long-rod screw. One end of the long-rod screw is fixedly connected to a fixing head. A first washer is movably fitted on the outer wall of the long-rod screw, and a first anti-loosening plate is movably fitted on the outer wall of the long-rod screw on one side of the first washer. In this utility model, the first anti-loosening plate prevents the first washer from loosening and rotating automatically by engaging with a first slot and a first locking block. The second anti-loosening plate prevents the second washer from loosening and rotating automatically by engaging with a second slot and a second locking block. Since the long-rod screw and the first washer have a conical contact, the contact surface between the long-rod screw and the first washer is increased, making the force on the first washer more even. The eccentric conical design of the nut makes the force on the second washer more even, further improving the safety of bicycle wheel rotation.

[0004] However, the above-mentioned quick-release bicycle wheel structure has the following shortcomings in actual use: the existing anti-loosening design mostly relies on a single thread self-locking or simple mechanical locking, which has limited anti-loosening reliability and is difficult to effectively cope with continuous vibration and impact in complex riding environments.

[0005] Therefore, a quick-release anti-derailment locking device for carbon fiber bicycle wheelsets 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 quick-release anti-loosening locking device for carbon fiber bicycle wheelsets. It has the advantages of active anti-loosening through locking components and convenient disassembly and assembly, and precise and stable positioning of the nut through positioning components, thereby ensuring the reliability of the connection between the carbon fiber wheelset and the frame and the riding safety.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-release anti-detachment locking device for carbon fiber bicycle wheelsets, comprising a long rod screw, a fixing head fixedly connected to the left end of the long rod screw, a nut threadedly connected to the right end of the long rod screw, and a locking component provided at the position corresponding to the nut on the right end of the long rod screw; The locking assembly includes a mounting chamber located on the right end face of the long rod screw. Two convex blocks, positioned vertically opposite to the nut, are positioned within the mounting chamber. The ends of the convex blocks that are furthest apart penetrate the long rod screw and abut against the inner wall of the nut. Ear plates are provided on both sides of the convex blocks, and a return spring connects the upper and lower ear plates. A wedge-shaped groove is formed on the opposite side of the convex blocks, and a wedge-shaped block is placed within the wedge-shaped groove. An adjusting bolt is connected to the side of the wedge-shaped block furthest from the convex blocks via a connecting bearing. The adjusting bolt is threadedly connected to the inner wall of the mounting chamber.

[0008] Preferably, the fixing head has a hexagonal groove on the side away from the long rod screw.

[0009] Preferably, a washer is provided on the side of the fixing head that is close to the nut, and the washer is fitted onto the long rod screw.

[0010] Preferably, a guide groove is provided on the long rod screw at the position corresponding to the convex block, and the end of the convex block that is far away from the convex block extends into the guide groove.

[0011] Preferably, each of the convex blocks has an anti-slip block connected to one of its opposite ends, and the anti-slip block fits against the inner wall of the nut.

[0012] Preferably, a positioning component is provided between the bolt head of the adjusting bolt and the nut. The positioning component includes a contact ring sleeved on the screw of the adjusting bolt. A spring telescopic rod is connected to the side of the contact ring near the nut. A positioning groove is provided on the nut at a position corresponding to the spring telescopic rod. The end of the spring telescopic rod extends into the positioning groove.

[0013] Preferably, the side of the abutment ring that abuts the bolt head of the adjusting bolt has a rough surface, and the bottom of the abutment ring has a notch through which the screw of the adjusting bolt passes.

[0014] Preferably, the spring telescopic rod includes a cylinder, a spring is provided inside the cylinder, a movable plate is connected to one end of the spring, a fixed rod is connected to the side of the movable plate away from the spring, and the end of the fixed rod passes through the cylinder and is fixedly connected to a contact ring.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The locking assembly of this utility model achieves active anti-loosening locking of the nut through the synergistic action of the adjusting bolt, wedge block and convex block. When the adjusting bolt is rotated, the wedge block is pushed along the wedge groove. The mechanical force of the wedge structure drives the two convex blocks away from each other, so that the anti-slip block is tightly pressed against the inner wall of the nut, thereby forming an active and reliable locking force. It effectively resists the impact of vibration and bumps on the nut connection during riding. Compared with the traditional structure that relies on thread self-locking, the anti-loosening reliability is significantly improved. At the same time, when the adjusting bolt is rotated in the opposite direction, the return spring can drive the convex block to automatically return to its original position, which facilitates the disassembly and assembly of the nut. It takes into account both locking stability and ease of use. 2. The positioning component of this utility model provides additional positioning constraints and guidance for the nut through the cooperation of the abutment ring, the spring telescopic rod, and the positioning groove. When the abutment ring is fitted onto the screw of the adjusting bolt, the end of the spring telescopic rod can extend into the positioning groove of the nut. During the rotation of the adjusting bolt, it can push the abutment ring to move synchronously. Utilizing the interlocking effect of the spring telescopic rod and the positioning groove, on the one hand, it helps the nut to remain stable in the locked state, preventing it from causing unexpected displacement or rotation due to continuous vibration. On the other hand, it provides precise positioning guidance for the operation of the adjusting bolt and the function of the locking component, making the locking component lock the nut more precise and stable. This further improves the overall anti-loosening performance of the quick-release device, ensuring that the connection between the carbon fiber wheelset and the frame remains reliable in complex riding environments, effectively guaranteeing riding safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the nut and positioning assembly of this utility model; Figure 3 This is a cross-sectional structural diagram showing the location of the mounting chamber of this utility model. Figure 4 This is a structural schematic diagram showing the position of the convex block in this utility model; Figure 5 This is a schematic diagram of the structure of the spring telescopic rod of this utility model.

[0017] In the picture: 1. Long rod screw; 2. Fixing head; 3. Nut; 4. Locking assembly; 41. Mounting chamber; 42. Convex block; 43. Ear plate; 44. Return spring; 45. Wedge groove; 46. Wedge block; 47. Connecting bearing; 48. Adjusting bolt; 49. Guide groove; 410. Anti-slip block; 5. Hexagonal groove; 6. Gasket; 7. Positioning component; 71. Attaching ring; 711. Notch; 72. Spring telescopic rod; 721. Cylinder; 722. Spring; 723. Movable plate; 724. Fixed rod; 73. Positioning groove. Detailed Implementation

[0018] 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.

[0019] like Figures 1 to 5 As shown, this utility model provides a quick-release anti-loosening locking device for carbon fiber bicycle wheelsets, including a long rod screw 1. The long rod screw 1 is the core connecting component of the entire quick-release device, providing an installation base and connection support for each component. A fixing head 2 is fixedly connected to its left end to realize the positioning of one side of the wheelset. A nut 3 is threadedly connected to the right end of the long rod screw 1. The nut 3 is used to cooperate with the other side of the frame to complete the clamping and fixing of the wheelset. A locking component 4 is provided at the position corresponding to the nut 3 on the right end of the long rod screw 1. The locking component 4 can realize active anti-loosening of the nut 3 and ensure the reliability of the wheelset connection. The locking assembly 4 includes a mounting chamber 41 located on the right end face of the long rod screw 1. The mounting chamber 41 provides mounting space for the various parts of the locking assembly 4. Inside, corresponding to the nut 3, are two vertically aligned convex blocks 42. The convex blocks 42 can lock or release the nut 3 by moving. The ends of the convex blocks 42 that are far apart penetrate the long rod screw 1 and abut against the inner wall of the nut 3. Ear plates 43 are provided on both sides of the convex blocks 42. A return spring 44 connects the vertically aligned ear plates 43, providing a return force to the convex blocks 42, facilitating the disassembly and assembly of the nut 3. A wedge-shaped groove 45 is provided on the opposite side of the block 42, and a wedge-shaped block 46 is provided in the wedge-shaped groove 45. The side of the wedge-shaped block 46 away from the convex block 42 is connected to an adjusting bolt 48 through a connecting bearing 47. The adjusting bolt 48 is threadedly connected to the inner wall of the mounting chamber 41. By rotating the adjusting bolt 48, the wedge-shaped block 46 can be moved along the wedge-shaped groove 45. The mechanical force of the wedge structure drives the two convex blocks 42 to move away from each other, so that the ends of the convex blocks 42 tightly abut against the inner wall of the nut 3, forming an active and reliable locking force. This effectively resists the impact of vibration and bumps on the connection of the nut 3 during riding and significantly improves the reliability of anti-loosening.

[0020] Specifically, a hexagonal groove 5 is provided on the side of the fixing head 2 away from the long rod screw 1, which facilitates the operation of the fixing head 2 with tools and assists in the installation and positioning of the wheel set.

[0021] Furthermore, a washer 6 is provided on the side of the fixing head 2 and the nut 3 that are close to each other. The washer 6 is sleeved on the long rod screw 1, which can distribute the pressure of the fixing head 2, the nut 3 and the wheel hub, avoid local stress concentration, and at the same time play a role in buffering and preventing wear, which is suitable for the low damage to the connection structure of carbon fiber wheelsets.

[0022] Furthermore, a guide groove 49 is provided on the long rod screw 1 at the position corresponding to the convex block 42. The end of the convex block 42 that is far away from the convex block 42 extends into the guide groove 49 to provide guidance for the movement of the convex block 42, ensuring that the convex block 42 moves smoothly in the predetermined direction and improving the accuracy of the locking action.

[0023] It is worth noting that each of the far ends of the convex blocks 42 is connected to an anti-slip block 410. The anti-slip block 410 fits against the inner wall of the nut 3, which not only enhances the friction between the convex blocks 42 and the inner wall of the nut 3, further strengthening the locking effect, but also avoids excessive wear caused by rigid contact between the convex blocks 42 and the nut 3, thus ensuring the service life of the components.

[0024] It is worth noting that a positioning component 7 is provided between the bolt head of the adjusting bolt 48 and the nut 3. The positioning component 7 provides additional positioning constraints and guidance for the nut 3, enhancing the stability of the nut 3 in the locked state. The positioning component 7 includes a contact ring 71 sleeved on the screw of the adjusting bolt 48. A spring telescopic rod 72 is connected to the side of the contact ring 71 near the nut 3. A positioning groove 73 is provided on the nut 3 at the position corresponding to the spring telescopic rod 72. The end of the spring telescopic rod 72 extends into the positioning groove 73. During the rotation of the adjusting bolt 48, the contact ring 71 can be pushed to move synchronously. Utilizing the interlocking action of the spring telescopic rod 72 and the positioning groove 73, on the one hand, it helps the nut 3 to remain stable in the locked state, preventing it from undergoing unexpected displacement or rotation due to continuous vibration. On the other hand, it provides precise positioning guidance for the operation of the adjusting bolt 48 and the function of the locking component 4, making the locking component 4 lock the nut 3 more accurately and stably, further improving the overall anti-loosening performance of the quick-release device, ensuring that the connection between the carbon fiber wheelset and the frame remains reliable in complex riding environments, and effectively guaranteeing riding safety.

[0025] It is worth mentioning that the side of the abutment ring 71 that abuts against the bolt head of the adjusting bolt 48 has a rough surface, which can increase the friction between the abutment ring 71 and the bolt head of the adjusting bolt 48. The bottom of the abutment ring 71 has a notch 711 for the screw of the adjusting bolt 48 to pass through, which makes it easier for the abutment ring 71 to be fitted onto the screw of the adjusting bolt 48, thus improving the ease of installation.

[0026] It is worth emphasizing that the spring telescopic rod 72 includes a cylinder 721, inside which a spring 722 is installed. One end of the spring 722 is connected to a movable plate 723. A fixed rod 724 is connected to the side of the movable plate 723 away from the spring 722. The end of the fixed rod 724 passes through the cylinder 721 and is fixedly connected to the abutment ring 71. The spring 722 provides elastic support for the fixed rod 724, so that the end of the spring telescopic rod 72 can be tightly embedded in the positioning groove 73. At the same time, it can also be smoothly disengaged through elastic deformation when it is necessary to release the positioning, thus taking into account both positioning stability and operational flexibility.

[0027] Working principle and process: When installing the wheelset, first pass the long screw 1 through the wheelset hub, so that the fixing head 2 is in contact with one side of the frame and is positioned by the hexagonal groove 5. Then, tighten the nut 3 to the initial clamping state. Next, activate the locking assembly 4 and rotate the adjusting bolt 48. The adjusting bolt 48 is pushed along the threaded wall of the mounting chamber 41, which drives the wedge block 46 to move towards the convex block 42 through the connecting bearing 47. The wedge block 46 is embedded in the wedge groove 45 of the convex block 42 and generates a lateral thrust, driving the two convex blocks 42 to move away from each other along the guide groove 49 of the long screw 1 until the anti-slip block 410 at the end of the convex block 42 tightly abuts against the inner wall of the nut 3, forming an active force on the nut 3. During the locking process, the return spring 44 between the ear plates 43 is stretched and stored. At the same time, when the adjusting bolt 48 is rotated, it pushes the abutment ring 71 to move synchronously. Under the elastic force of the spring 722, the end of the spring telescopic rod 72 of the positioning component 7 extends into the positioning groove 73 of the nut 3 to help the nut 3 to be stably positioned. When disassembling the wheel set, the adjusting bolt 48 is rotated in the opposite direction, and the wedge block 46 is disengaged with the adjusting bolt 48. The return spring 44 releases its elastic force and pulls the convex block 42 closer to each other. The anti-slip block 410 is disengaged from the inner wall of the nut 3. The fixing rod 724 of the spring telescopic rod 72 is disengaged from the positioning groove 73 under the action of the abutment ring 71. Finally, the nut 3 is unscrewed and the long rod screw 1 is removed to complete the wheel set disassembly.

[0028] 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.

[0029] 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 carbon fiber bicycle wheel set quick release anti-off locking device, comprising a long rod screw (1), characterized in that: The left end of the long rod screw (1) is fixedly connected to a fixing head (2), the right end of the long rod screw (1) is threadedly connected to a nut (3), and a locking component (4) is provided at the position corresponding to the nut (3) on the right end of the long rod screw (1). The locking assembly (4) includes an installation chamber (41) on the right end face of the long rod screw (1). Two convex blocks (42) are arranged in the installation chamber (41) at positions corresponding to the nut (3). The opposite ends of the convex blocks (42) pass through the long rod screw (1) and abut against the inner wall of the nut (3). Ear plates (43) are provided on both sides of the convex blocks (42). A return spring (44) is connected between the upper and lower ear plates (43). A wedge groove (45) is provided on the opposite side of the convex blocks (42). A wedge block (46) is provided in the wedge groove (45). An adjusting bolt (48) is connected to the side of the wedge block (46) away from the convex blocks (42) through a connecting bearing (47). The adjusting bolt (48) is threaded to the inner wall of the installation chamber (41).

2. A quick release anti-escape locking device for a carbon fiber bicycle wheel set according to claim 1, characterized in that: The fixing head (2) has a hexagonal groove (5) on the side away from the long rod screw (1).

3. A quick release anti-rotation lock for a carbon fiber bicycle wheel set according to claim 1, characterized in that: The fixing head (2) and the nut (3) are both provided with a washer (6), and the washer (6) is sleeved on the long rod screw (1).

4. A quick release anti-rotation lock for a carbon fiber bicycle wheel set according to claim 1, characterized in that: A guide groove (49) is provided on the long rod screw (1) at the position corresponding to the convex block (42), and the end of the convex block (42) that is far away from it extends into the guide groove (49).

5. A quick release anti-rotation lock for a carbon fiber bicycle wheel set according to claim 1, characterized in that: Each of the convex blocks (42) is connected to an anti-slip block (410) at one end away from the other, and the anti-slip block (410) fits against the inner wall of the nut (3).

6. A quick release anti-rotation lock for a carbon fiber bicycle wheel set according to claim 1, characterized in that: A positioning component (7) is provided between the bolt head of the adjusting bolt (48) and the nut (3). The positioning component (7) includes a contact ring (71) sleeved on the screw of the adjusting bolt (48). A spring telescopic rod (72) is connected to the side of the contact ring (71) near the nut (3). A positioning groove (73) is provided on the nut (3) at the position corresponding to the spring telescopic rod (72). The end of the spring telescopic rod (72) extends into the positioning groove (73).

7. A quick release anti-rotation lock for a carbon fiber bicycle wheel set according to claim 6, characterized in that: The abutment ring (71) has a rough surface on one side of the bolt head of the adjusting bolt (48), and the bottom of the abutment ring (71) has a notch (711) for the screw of the adjusting bolt (48) to pass through.

8. A quick release anti-rotation lock for a carbon fiber bicycle wheel set according to claim 6, characterized in that: The spring telescopic rod (72) includes a cylinder (721), a spring (722) is provided inside the cylinder (721), one end of the spring (722) is connected to a movable plate (723), and a fixed rod (724) is connected to the side of the movable plate (723) away from the spring (722). The end of the fixed rod (724) passes through the cylinder (721) and is fixedly connected to a contact ring (71).

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