Quick release rod for bicycle cylinder shaft

Abstract

The utility model discloses a quick release rod for a bicycle cylinder shaft, which comprises a rod body, one end of the rod body is hinged with a fastening handle, the rod body is sleeved with an inner end cap in a sliding mode, a first spring is arranged on the outer side of the inner end cap, an outer end cap is arranged on the outer side of the rod body in a threaded mode, and a second spring is arranged on the inner side of the outer end cap. A fixed plate is arranged at the outer end of the second spring, a movable plate is arranged on the inner side of the fixed plate, the second spring is sleeved with the movable plate, a limiting column is arranged on the movable plate, the limiting column extends to the outer side of the fixed plate in a sliding mode and is clamped with the outer end cap in a limiting mode, and the limiting column is sleeved with a telescopic spring; according to the bicycle quick release rod, when the quick release rod is installed, the screwing fastening performance of the outer end cap can be improved, the installation stability of the quick release rod is improved, and then the stability of a bicycle in the running process is improved.

Description

Technical Field

[0001] This utility model relates to the field of quick-release lever technology, and more specifically, it relates to a quick-release lever for bicycle thru-axles. Background Technology

[0002] A bicycle wheel spool quick-release lever is a device used for quickly installing and removing bicycle wheelsets. It uses a simple lever mechanism to secure or remove wheelsets in seconds, making it very convenient.

[0003] When using a quick-release lever, the lever body is passed through the bicycle wheel axle and engaged with the bicycle frame. Then, the outer end cap is screwed on, causing the inner and outer end caps to press against the bicycle frame, thus connecting the quick-release lever to the frame. After that, the handle is rotated to achieve a stable connection between the quick-release lever body and the frame through the lever principle.

[0004] During installation, the outer end cap, which is used for initial fastening, is mainly fixed to the rod by screwing on the thread. In actual installation, it is used in conjunction with a spring to prevent the outer end cap from loosening and falling off due to vibration during bicycle movement.

[0005] However, relying solely on the spring to prevent the outer cap from slipping off is not very effective. Over time, the outer cap may still loosen due to vibration, affecting the bicycle's riding safety. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the problems existing in the prior art, this utility model provides a quick-release lever for bicycle thru-axles, thereby solving the technical problem mentioned in the background art where the outer end cap of the quick-release lever for bicycle thru-axles has poor installation stability during installation.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A quick-release lever for a bicycle thru-axle includes a lever body with a fastening handle hinged to one end. An inner end cap is slidably fitted onto the lever body, and a first spring is disposed on the outer side of the inner end cap. An outer end cap is threaded onto the outer side of the lever body, and a second spring is disposed on the inner side of the outer end cap. A fixing plate is disposed at the outer end of the second spring, and a movable plate is disposed on the inner side of the fixing plate. The movable plate is fitted onto the outer side of the second spring, and a limiting post is disposed on the movable plate. The limiting post slides to the outer side of the fixing plate and engages with the outer end cap for limiting engagement. A telescopic spring is fitted onto the outer side of the limiting post, and the telescopic spring is located between the fixing plate and the movable plate.

[0011] The present invention is further provided with a lever cap on the movable plate, which facilitates the control of the movement of the movable plate.

[0012] The present invention is further configured such that a movable groove is provided on the fixed plate, and the limiting post is slidably located inside the limiting post, so that the limiting post can move and shuttle on the fixed plate through the movable groove.

[0013] The present invention is further configured such that the outer end of the rod is provided with a threaded section, the threaded section is provided with a limiting groove, the fixing plate is provided with a limiting slide bar, the limiting slide bar slides within the limiting groove, the rotation of the fixing plate relative to the rod is restricted by the cooperation of the limiting slide bar and the limiting groove, and the rotation of the limiting post is restricted by the cooperation of the moving groove and the limiting post, and the rotation of the protective cover is restricted by the cooperation of the limiting post and the engaging groove, thereby preventing the rotation of the outer end cap and further enhancing the locking stability of the outer end cap during use.

[0014] The present invention is further configured such that the outer end cap includes a locking nut, the locking nut is threadedly engaged with the threaded section, and a protective cover is provided on the outside of the locking nut, which improves the ease of tightening during overall installation and also enhances the overall aesthetics.

[0015] The present invention is further configured such that the outer side of the protective cover is provided with an external hexagonal screwing section in conjunction with the locking nut. When the manual screwing force of the protective cover is insufficient, an external tool can be used in conjunction with the external hexagonal screwing section to further screw or limit the outer end cap.

[0016] The present invention is further configured such that a locking groove is provided at one end of the protective cover near the second spring, and the limiting post is locked in the locking groove. The rotation of the limiting post to the outer end cap is limited by the cooperation between the limiting post and the locking groove.

[0017] The present invention is further provided with a wear-resistant liner on the side of the inner end cap near the fastening handle, and the surface of the wear-resistant liner is provided with a wear-resistant surface layer.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a quick-release lever for bicycle thru-axles, which has the following advantages:

[0020] 1. This utility model features a fixed plate, a movable plate, a limiting post, and a telescopic spring that cooperate with each other on the second spring. The limiting post engages with the protective cover on the outer end cap through a locking groove. After installation, when the outer end cap is screwed onto the end of the rod, the movable plate moves the limiting plate to the inside of the fixed plate, causing the outer end cap to compress the second spring until it cannot be screwed down, thus achieving initial fixation between the rod and the external bicycle frame. Then, the external force on the movable plate can be released, and under the action of the telescopic spring, the movable plate can be controlled to move the limiting post, allowing the limiting post to pass through the movable groove on the fixed plate and engage with the locking groove on the outer end cap. This, in turn, limits the rotation of the outer end cap caused by vibration through the cooperation of the limiting post and the locking groove, improving the locking stability of the outer end cap on the rod and thus improving the installation stability of the quick-release rod.

[0021] 2. This utility model features a limiting groove on the threaded section at the tail end of the rod, and a limiting strip is fitted on the upper part of the fixing plate, allowing the limiting strip to slide within the limiting groove. This allows the fixing plate to be restricted from rotating relative to the rod through the cooperation of the limiting strip and the limiting groove. Simultaneously, the rotation of the limiting post is restricted through the cooperation of the moving groove and the limiting post. Furthermore, the rotation of the protective cover is restricted through the cooperation of the limiting post and the engaging groove, thus preventing the outer end cap from rotating and further enhancing the locking stability of the outer end cap during use.

[0022] 3. This utility model provides a wear-resistant liner on the side of the inner end cap near the fastening handle. The surface of the wear-resistant liner is provided with a wear-resistant surface layer. The wear-resistant liner is preferably made of wear-resistant steel plate. The wear-resistant surface layer is preferably a layer of wear-resistant coating sprayed on the surface of the wear-resistant liner to further enhance the wear resistance of the inner end cap surface. The wear-resistant surface layer can be titanium nitride coating (TiN), superhard coating, aluminum titanium nitride coating (TiAlN), etc., thereby reducing wear on the inner end cap when the rod is further pressed by the fastening handle, improving the service life of the inner end cap, and ensuring the overall locking performance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a quick-release lever for a bicycle thru-axle according to the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall structure of a quick-release lever for a bicycle thru-axle according to the present invention. Figure 2 ;

[0025] Figure 3 This is an exploded view of the overall structure of this utility model;

[0026] Figure 4 This is a cross-sectional schematic diagram of the connection structure between the second spring, the fixed plate, the movable plate, and the threaded section in this utility model;

[0027] Figure 5 This is a schematic diagram of the overall structure of the outer end cap in this utility model;

[0028] Figure 6 This is a partial cross-sectional view of the inner cap in this utility model.

[0029] In the diagram: 1. Rod body; 2. Fastening handle; 3. Inner end cap; 4. First spring; 5. Outer end cap; 6. Second spring; 7. Fixed plate; 8. Moving plate; 9. Limiting post; 10. Telescopic spring; 11. Toggle cap; 12. Moving groove; 13. Threaded section; 14. Limiting slide groove; 15. Limiting slide bar; 16. Locking nut; 17. Protective cover; 18. External hexagonal screw section; 19. Engaging groove; 20. Wear-resistant liner; 21. Wear-resistant surface layer. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0033] Please see Figures 1-6 A quick-release lever for bicycle thru-axle includes a lever body 1, a fastening handle 2 hinged to one end of the lever body 1, an inner end cap 3 slidably sleeved on the lever body 1, a first spring 4 provided on the outer side of the inner end cap 3, an outer end cap 5 threaded on the outer side of the lever body 1, and a second spring 6 provided on the inner side of the outer end cap 5.

[0034] The above structure is the main structure of the existing quick-release lever, and its specific installation process is the existing known technology, which will not be described in detail in this utility model;

[0035] The present invention provides a fixing plate 7 at the outer end of the second spring 6, the fixing plate 7 is fixedly connected to the second spring 6, a movable plate 8 is provided on the inner side of the fixing plate 7, the movable plate 8 is sleeved on the outer side of the second spring 6, a limiting post 9 is provided on the movable plate 8, the limiting post 9 slides to the outer side of the fixing plate 7 and is limited and engaged with the outer end cap 5, and a telescopic spring 10 is sleeved on the outer side of the limiting post 9, the telescopic spring 10 is located between the fixing plate 7 and the movable plate 8;

[0036] In this way, after installation, when the outer cap 5 is screwed onto the tail end of the rod 1, the moving plate 8 can move the limiting plate to the inside of the fixed plate 7, and the outer cap 5 can compress the second spring 6 until the outer cap 5 can no longer be screwed on, thus achieving the initial fixation between the rod 1 and the external bicycle frame. Then, the external force of the moving plate 8 can be released, and under the action of the telescopic spring 10, the moving plate 8 can be controlled to move the limiting post 9, so that the limiting post 9 passes through the moving groove 12 on the fixed plate 7 and engages with the engaging groove 19 on the outer cap 5. Thus, the rotation of the outer cap 5 caused by vibration can be limited by the cooperation between the limiting post 9 and the engaging groove 19, improving the locking stability of the outer cap 5 on the rod 1, and thus improving the installation stability of the quick-release rod.

[0037] Please see Figures 1-6 As one implementation of the movable plate 8: the movable plate 8 is provided with a dial cap 11, which facilitates the control of the movement of the movable plate 8.

[0038] Please see Figures 1-6 As one embodiment of the fixed plate 7: the fixed plate 7 is provided with a moving groove 12, and the limiting post 9 is slidably located in the limiting post 9. The moving groove 12 is used to realize the movement of the limiting post 9 on the fixed plate 7.

[0039] Please see Figures 1-6 This utility model has a threaded section 13 at the outer end of the rod body 1, and a limiting groove 14 is provided on the threaded section 13. A limiting slide bar 15 is provided on the fixing plate 7. The limiting slide bar 15 slides in the limiting groove 14. The rotation of the fixing plate 7 relative to the rod body 1 is restricted by the cooperation of the limiting slide bar 15 and the limiting groove 14. At the same time, the rotation of the limiting post 9 is restricted by the cooperation of the moving groove 12 and the limiting post 9. Furthermore, the rotation of the protective cover 17 is restricted by the cooperation of the limiting post 9 and the engaging groove 19. This can prevent the rotation of the outer end cap 5 and further enhance the locking stability of the outer end cap 5 when the rod body 1 is in use.

[0040] Please see Figures 1-6As one implementation of the outer end cap 5: the outer end cap 5 includes a locking nut 16, which is threadedly engaged with the threaded section 13. A protective cover 17 is provided on the outside of the locking nut 16 to improve the ease of tightening during overall installation and to enhance the overall aesthetics.

[0041] Please see Figures 1-6 As one implementation of the protective cover 17: the outer side of the protective cover 17 is provided with an external hexagonal screwing section 18 in conjunction with the locking nut 16. When the force of manually screwing the protective cover 17 is insufficient, an external tool can be used in conjunction with the external hexagonal screwing section 18 to further screw or limit the outer end cap 5.

[0042] Please see Figures 1-6 As one embodiment of the protective cover 17: the protective cover 17 has a locking groove 19 at one end near the second spring 6, and the limiting post 9 is locked in the locking groove 19. The limiting post 9 is locked in the locking groove 19 through the cooperation between the limiting post 9 and the locking groove 19 to limit the rotation of the limiting post 9 to the outer end cap 5.

[0043] Please see Figures 1-6 This utility model provides a wear-resistant liner 20 on the side of the inner end cap 3 near the fastening handle 2. The surface of the wear-resistant liner 20 is provided with a wear-resistant surface layer 21. The wear-resistant liner 20 is preferably made of wear-resistant steel plate. The wear-resistant surface layer 21 is preferably a layer of wear-resistant coating sprayed on the surface of the wear-resistant liner 20 to further enhance the wear resistance of the inner end cap 3. The wear-resistant surface layer 21 can be a titanium nitride coating (TiN), an ultra-hard coating, a titanium aluminum nitride coating (TiAlN), etc. In this way, when the rod body 1 is further pressed by the fastening handle 2, the wear on the inner end cap 3 is reduced, the service life of the inner end cap 3 is improved, and the overall locking performance is guaranteed.

[0044] In summary:

[0045] This invention features a fixed plate 7, a movable plate 8, a limiting post 9, and a telescopic spring 10 that cooperate with each other on the second spring 6. The limiting post 9 engages with the protective cover 17 on the outer end cap 5 through the engaging groove 19. After installation, when the outer end cap 5 is screwed onto the tail end of the rod 1, the movable plate 8 moves the limiting plate to the inside of the fixed plate 7, causing the outer end cap 5 to press against the second spring 6 until it cannot be screwed down, thus achieving initial fixation between the rod 1 and the external bicycle frame. Then, the external force on the movable plate 8 can be released, and under the action of the telescopic spring 10, the movable plate 8 can be controlled to move the limiting post 9, allowing the limiting post 9 to pass through the movable groove 12 on the fixed plate 7 and engage with the engaging groove 19 on the outer end cap 5. This cooperation between the limiting post 9 and the engaging groove 19 restricts the rotation of the outer end cap 5 caused by vibration, improving the locking stability of the outer end cap 5 on the rod 1, and thus improving the installation stability of the quick-release rod.

[0046] This utility model provides a limiting groove 14 on the threaded section 13 at the tail end of the rod 1, and a limiting slide bar 15 is provided on the upper plate of the fixing plate 7, so that the limiting slide bar 15 slides within the limiting groove 14. In this way, the rotation of the fixing plate 7 relative to the rod 1 can be limited by the cooperation of the limiting slide bar 15 and the limiting groove 14. At the same time, the rotation of the limiting post 9 can be limited by the cooperation of the moving groove 12 and the limiting post 9. Furthermore, the rotation of the protective cover 17 can be limited by the cooperation of the limiting post 9 and the engaging groove 19, thereby preventing the rotation of the outer end cap 5 and further enhancing the locking stability of the outer end cap 5 when the rod 1 is in use.

[0047] This invention provides a wear-resistant liner 20 on the side of the inner end cap 3 near the fastening handle 2. The surface of the wear-resistant liner 20 is provided with a wear-resistant surface layer 21. The wear-resistant liner 20 is preferably made of wear-resistant steel plate. The wear-resistant surface layer 21 is preferably a layer of wear-resistant coating sprayed on the surface of the wear-resistant liner 20 to further enhance the wear resistance of the inner end cap 3. The wear-resistant surface layer 21 can be a titanium nitride coating (TiN), an ultra-hard coating, a titanium aluminum nitride coating (TiAlN), etc. In this way, when the rod body 1 is further pressed by the fastening handle 2, the wear on the inner end cap 3 is reduced, the service life of the inner end cap 3 is improved, and the overall locking performance is guaranteed.

[0048] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0049] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here.

[0050] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them.

[0051] Of all the solutions mentioned above, those involving the connection between solar panels and batteries can be equipped with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and circuit connections are all existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here.

Claims

1. A quick-release lever for a bicycle thru-axle, comprising a lever body (1), one end of which is hinged to a fastening handle (2), an inner end cap (3) slidably sleeved on the lever body (1), a first spring (4) disposed on the outer side of the inner end cap (3), an outer end cap (5) threaded on the outer side of the lever body (1), and a second spring (6) disposed on the inner side of the outer end cap (5), characterized in that: A fixed plate (7) is provided at the outer end of the second spring (6), and a movable plate (8) is provided on the inner side of the fixed plate (7). The movable plate (8) is sleeved on the outer side of the second spring (6). A limiting post (9) is provided on the movable plate (8). The limiting post (9) slides to the outer side of the fixed plate (7) and is limited and engaged with the outer end cap (5). A telescopic spring (10) is sleeved on the outer side of the limiting post (9). The telescopic spring (10) is located between the fixed plate (7) and the movable plate (8).

2. A quick-release lever for a bicycle thru-axle according to claim 1, characterized in that: The movable plate (8) is provided with a dial cap (11).

3. A quick-release lever for a bicycle thru-axle according to claim 1, characterized in that: The fixed plate (7) is provided with a moving groove (12), and the limiting post (9) is slidably located in the limiting post (9).

4. A quick-release lever for a bicycle thru-axle according to claim 1, characterized in that: The outer end of the rod (1) is provided with a threaded section (13), and a limiting groove (14) is provided on the threaded section (13). A limiting slide bar (15) is provided on the fixing plate (7), and the limiting slide bar (15) slides within the limiting groove (14).

5. A quick-release lever for a bicycle thru-axle according to claim 4, characterized in that: The outer end cap (5) includes a locking nut (16), which is threadedly engaged with the threaded section (13), and a protective cover (17) is provided on the outside of the locking nut (16).

6. A quick-release lever for a bicycle thru-axle according to claim 5, characterized in that: The outer side of the protective cover (17) is provided with an external hexagonal screw section (18) that is fitted with a locking nut (16).

7. A quick-release lever for a bicycle thru-axle according to claim 5, characterized in that: The protective cover (17) has a locking groove (19) at one end near the second spring (6), and the limiting post (9) is locked in the locking groove (19).

8. A quick-release lever for a bicycle thru-axle according to claim 1, characterized in that: The inner end cap (3) is provided with a wear-resistant liner (20) on the side near the fastening handle (2), and the surface of the wear-resistant liner (20) is provided with a wear-resistant surface layer (21).

Images