A movable axle center lifting positioner and its application bicycle hub

Abstract

The utility model discloses a movable axle's lifting positioner and its application's bicycle hub relates to bicycle hub technical field, including outer hub shell, the inside bolt fixing of outer hub shell has the clamping seat, the inside of clamping seat is provided with first fixed bolt, the inside of clamping seat and located first fixed bolt's outside is equipped with two corresponding inner hub shell, the beneficial effect of the present application is: through the control switch on the bicycle handlebar control pusher push second connecting shaft to the inside movement of central shaft, thereby push T type and move in the inside of the card slot, and then when the force that pushes that T type and block is greater than the spring elasticity, make T type and block push the positioning block and move to the spring elasticity force opposite direction, thereby realize the positioning block and move left and right on the outside of central shaft, and then push out the positioning block from the inside of second positioning slot, thereby reach the purpose of second positioning slot and first positioning slot card joint conversion.

Description

Technical Field

[0001] This utility model relates to the field of bicycle wheel hub technology, specifically to a movable axle lifting and positioning device and its application in bicycle wheel hubs. Background Technology

[0002] Bicycles, as an environmentally friendly means of transportation, are widely used in our daily lives for getting around. With the improvement of people's living standards, more and more people are using bicycles as fitness equipment for exercise and cycling trips, achieving the dual purpose of commuting and leisure. Currently, commercially available bicycles generally have solid, non-eccentric axles, suitable for normal commuting and with limited functionality. To experience a different riding feel or for fitness purposes, eccentric axle bicycles have emerged, capable of switching between flat and undulating terrain. These eccentric axle bicycles generally have complex structures and high manufacturing costs.

[0003] Chinese patent application number 201910700577.6 discloses a lifting positioner and a bicycle hub that uses it to move and position the axle. The hub includes a hub shell, a side cover, an inner hub assembly, and a push-pull mechanism. The inner hub assembly is located inside the hub shell and its two ends pass through radially opened grooves in the side cover. The inner hub assembly includes the inner hub shell and an axle with a through hole. A displacement rotor is sleeved on the axle, and a displacement plug is installed in the through hole. The displacement plug is connected to the displacement rotor and the push-pull mechanism respectively. A lifting positioner is installed inside the hub shell. The first and second plates of the lifting positioner clamp the displacement rotor. The lifting positioner moves with the movement of the displacement rotor, causing it to engage or disengage from the inner hub shell. By moving and positioning the axle, the bicycle hub can be adjusted back and forth between a centered and eccentric position, achieving diversified riding experiences. It has a simple structure, stable performance, and is easy to use.

[0004] The existing lifting positioner and the bicycle wheel hub using it to move and position the axle have poor buffering and post-positioning stability, which reduces their practicality. Therefore, we propose a lifting positioner with a movable axle and its application in a bicycle wheel hub. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a movable shaft lifting and positioning device and its application in bicycle wheel hubs, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a movable axle lifting and positioning device and its application in a bicycle hub, comprising an outer hub shell, a clamp fixed inside the outer hub shell by bolts, a first fixing bolt inside the clamp, two corresponding inner hub shells fitted outside the first fixing bolt and inside the clamp, an internal groove inside the inner hub shell, a central shaft inserted into the two internal grooves, a positioning block fitted outside the central shaft, two corresponding fixing seats fixedly connected inside the outer hub shell, an arc-shaped positioning bow fixed between the two fixing seats by bolts, a first positioning groove inside the arc-shaped positioning bow, a second positioning groove inside the arc-shaped positioning bow, a sliding groove inside the positioning block, the arc-shaped positioning bow slidably connected inside the positioning block, the rotation axis of the positioning block and the inner hub shell being the same as the axis of the arc-shaped positioning bow, so that the positioning block can rotate and adjust its position by conforming to the curvature of the arc-shaped positioning bow during rotation adjustment.

[0007] Optionally, the positioning block has a central groove inside, and the central shaft is inserted into the central groove. The central shaft has a retaining groove inside, and a T-shaped retaining block is inserted into the retaining groove. One end of the T-shaped retaining block is inserted into the central groove. Through the cooperation of the T-shaped retaining block and the central groove, the positioning block can be limited. When the second connecting shaft is pushed to move inside the central shaft, the T-shaped retaining block is pushed to move inside the retaining groove. When the force of pushing the T-shaped retaining block is greater than the spring force, the T-shaped retaining block pushes the positioning block to move in the opposite direction of the spring force, thereby realizing the left and right movement of the positioning block outside the central shaft, and thus pushing the positioning block out of the second positioning groove, thereby achieving the purpose of locking and switching between the second positioning groove and the first positioning groove.

[0008] Optionally, a compression spring is provided on the outer side of the central shaft. One end of the compression spring cooperates with the inner wall of the inner groove, and the other end of the compression spring cooperates with the positioning block. Through the cooperation of the compression spring, the inner groove, and the positioning block, the elastic force of the compression spring can limit the positioning block, thereby ensuring the stability of the positioning block being engaged with the inside of the second positioning groove.

[0009] Optionally, the positioning block cooperates with the second positioning groove and the first positioning groove.

[0010] Optionally, the interior of the two inner hub shells is provided with a plurality of second fixing grooves, and a second fixing bolt is inserted into the interior of the second fixing grooves. The two inner hub shells can be fixed by the cooperation of the plurality of second fixing bolts and the second fixing grooves.

[0011] Optionally, a side cover is provided on the outer side of the outer hub shell, and both ends of the central shaft extend to the outer side of the side cover. A freewheel is fitted at one end of the central shaft, and a brake disc is fitted at the other end. A second connecting shaft is inserted into the interior of the central shaft, and the second connecting shaft contacts one side of the T-shaped locking block. A pusher is fitted on the outer side of the central shaft, and the pusher cooperates with the second connecting shaft and the converter on the bicycle handlebars. Through the cooperation of the second connecting shaft and the T-shaped locking block, the positioning block can be pushed, thereby adjusting the locking position of the positioning block. Through the cooperation of the freewheel, the central shaft, the second connecting shaft, and the pusher, the normal operation of the adjustment mechanism can be ensured.

[0012] Optionally, two corresponding washers are fitted on the outer side of the first fixing bolt. The washers fit against the inner hub shell and can buffer the connection point between the clamp and the inner hub shell. The tightness of the first fixing bolt determines the buffering force.

[0013] Optionally, the positioning block has a second insertion groove inside, and the inner hub shell has a first insertion groove inside. Insertion rods are inserted into the first and second insertion grooves. Through the cooperation of the insertion rods, the first and second insertion grooves, the inner hub shell and the positioning block can be limited, thereby ensuring the stability of the positioning block when it moves and preventing it from lateral swaying.

[0014] This utility model provides a movable shaft lifting and positioning device and its application in bicycle wheel hubs, which has the following beneficial effects:

[0015] The movable axle lifting positioner and its application in bicycle wheel hubs utilize a control switch on the bicycle handlebars to push a pusher that moves the second connecting axis inward along the central shaft. This, in turn, moves a T-shaped locking block within a slot. When the force pushing the T-shaped locking block exceeds the spring force, the T-shaped locking block pushes the positioning block in the opposite direction of the spring force, allowing the positioning block to move left and right on the outside of the central shaft. This pushes the positioning block out of the second positioning slot, achieving the purpose of switching between the second and first positioning slots. A shim provides cushioning at the connection point between the clamp and the inner wheel hub shell. The tightness of the first fixing bolt determines the magnitude of the cushioning force, thus improving the stability of the movable axle lifting positioner and its application in bicycle wheel hubs during adjustment and enhancing the cushioning effect on the clamp and inner wheel hub shell. The structure of this movable axle lifting positioner and its application in bicycle wheel hubs is simpler and easier to implement as a high-quality product. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the unfolded structure of the outer hub shell of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the outer hub shell of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the inner hub shell of this utility model;

[0020] Figure 5 This is a schematic diagram of the unfolded structure of the inner hub shell of this utility model;

[0021] Figure 6 This is a schematic diagram of the positioning block of this utility model;

[0022] Figure 7 This is a schematic diagram of the unfolded structure of the central axis of this utility model;

[0023] Figure 8 This is a schematic diagram of the unfolded structure of this utility model;

[0024] Figure 9 This is a structural schematic diagram from another perspective of the present invention.

[0025] In the diagram: 1. Outer hub shell; 2. Clamp; 3. Inner hub shell; 4. Gasket; 5. Internal groove; 6. Central shaft; 7. Positioning block; 8. Slot; 9. T-shaped locking block; 10. Compression spring; 12. Arc-shaped positioning bow; 13. First positioning groove; 14. Sliding groove; 15. Second positioning groove; 16. Fixed seat; 17. Second connecting shaft; 18. Side cover; 19. Flywheel; 20. First insertion groove; 21. Insertion rod; 22. Shaft groove; 23. Second insertion groove; 24. First fixing bolt; 25. Second fixing bolt; 26. Second fixing groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] like Figures 1 to 9As shown, this utility model provides a technical solution: a movable shaft lifting and positioning device and its application in a bicycle wheel hub, including an outer wheel hub shell 1, a clamp 2 fixed inside the outer wheel hub shell 1 by bolts, a first fixing bolt 24 inside the clamp 2, two corresponding inner wheel hub shells 3 fitted outside the first fixing bolt 24 and inside the clamp 2, an inner wheel hub shell 3 having an internal groove 5 inside, a central shaft 6 inserted into the two internal grooves 5, a positioning block 7 sleeved on the outside of the central shaft 6, and a fixed connection inside the outer wheel hub shell 1. Two corresponding fixed seats 16 are fixed together by bolts, and an arc-shaped positioning bow 12 is fixed between the two fixed seats 16. The arc-shaped positioning bow 12 has a first positioning groove 13 and a second positioning groove 15. The positioning block 7 has a sliding groove 14. The arc-shaped positioning bow 12 is slidably connected to the inside of the positioning block 7. The rotation axis of the positioning block 7 and the inner hub shell 3 is the same as the axis of the arc-shaped positioning bow 12, so that the positioning block 7 can fit the arc of the arc-shaped positioning bow 12 for rotation adjustment and locking position during rotation adjustment.

[0028] like Figure 2 , Figure 7 As shown, the positioning block 7 has a central groove 22 inside, and the central shaft 6 is inserted into the central groove 22. The central shaft 6 has a slot 8 inside, and a T-shaped locking block 9 is inserted into the slot 8. One end of the T-shaped locking block 9 is inserted into the central groove 22. Through the cooperation of the T-shaped locking block 9 and the central groove 22, the positioning block 7 can be limited. When the second connecting shaft 17 is pushed to move into the central shaft 6, the T-shaped locking block 9 is pushed to move into the slot 8. When the force of pushing the T-shaped locking block 9 is greater than the spring force, the T-shaped locking block 9 pushes the positioning block 7 to move in the opposite direction of the spring force, thereby realizing the left and right movement of the positioning block 7 outside the central shaft 6, and thus pushing the positioning block 7 out of the second positioning groove 15, thereby achieving the purpose of locking and switching the second positioning groove 15 and the first positioning groove 13.

[0029] like Figure 6 , Figure 7 As shown, a compression spring 10 is provided on the outer side of the central shaft 6. One end of the compression spring 10 cooperates with the inner wall of the inner groove 5, and the other end of the compression spring 10 cooperates with the positioning block 7. Through the cooperation of the compression spring 10, the inner groove 5, and the positioning block 7, the elastic force of the compression spring 10 can limit the positioning block 7, thereby ensuring the stability of the positioning block 7 in the second positioning groove 15. The positioning block 7 cooperates with the second positioning groove 15 and the first positioning groove 13.

[0030] like Figure 3As shown, the interior of the two inner hub shells 3 is provided with multiple second fixing grooves 26, and second fixing bolts 25 are inserted into the interior of the second fixing grooves 26. The two inner hub shells 3 can be fixed by the mutual cooperation of the multiple second fixing bolts 25 and the second fixing grooves 26.

[0031] like Figures 1 to 5 As shown, a side cover 18 is provided on the outer side of the outer hub shell 1. Both ends of the central shaft 6 extend to the outer side of the side cover 18. A freewheel 19 is fitted on one end of the central shaft 6, and a brake disc is fitted on the other end. A second connecting shaft 17 is inserted into the interior of the central shaft 6. The second connecting shaft 17 contacts one side of the T-shaped locking block 9. A pusher is fitted on the outer side of the central shaft 6. The pusher cooperates with the second connecting shaft 17 and with the converter on the bicycle handlebars. Through the cooperation of the second connecting shaft 17 and the T-shaped locking block 9, the positioning block 7 can be pushed, thereby adjusting the locking position of the positioning block 7. Through the cooperation of the freewheel 19, the central shaft 6, the second connecting shaft 17, and the pusher, the normal operation of the adjustment mechanism can be ensured.

[0032] like Figures 5 to 9 As shown, two corresponding washers 4 are fitted on the outer side of the first fixing bolt 24. The washers 4 fit together with the inner hub shell 3. The washers 4 can buffer the connection point between the clamp 2 and the inner hub shell 3. The tightness of the first fixing bolt 24 determines the amount of buffering force.

[0033] The positioning block 7 has a second insertion groove 23 inside, and the inner hub shell 3 has a first insertion groove 20 inside. Insertion rods 21 are inserted into the first insertion groove 20 and the second insertion groove 23. Through the cooperation of the insertion rods 21, the first insertion groove 20 and the second insertion groove 23, the inner hub shell 3 and the positioning block 7 can be limited, thereby ensuring the stability of the positioning block 7 when it moves and preventing it from lateral swaying.

[0034] In summary, the movable shaft lifting positioner and its application in bicycle hubs, when the hub needs to be switched from the center position to the eccentric position, control the pusher by operating the switch on the bicycle handlebars to move the second connecting shaft 17 into the center shaft 6 (this is existing technology, so it will not be described in detail), thereby pushing the T-shaped locking block 9 into the slot 8. When the force pushing the T-shaped locking block 9 is greater than the spring force, the T-shaped locking block 9 pushes the positioning block 7 in the opposite direction of the spring force, thereby realizing the left and right movement of the positioning block 7 on the outside of the center shaft 6, and thus pushing the positioning block 7 out of the second positioning groove 15, thereby achieving the purpose of locking and switching the second positioning groove 15 and the first positioning groove 13. The shim 4 can buffer the connection point between the clamp 2 and the inner hub shell 3, and the tightness of the first fixing bolt 24 determines the magnitude of the buffering force.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A movable axle lifting positioner and its application in a bicycle wheel hub, comprising an outer hub shell (1), characterized in that: The outer hub shell (1) is bolted to a clamp (2), and a first fixing bolt (24) is inserted into the clamp (2). Two corresponding inner hub shells (3) are fitted on the outside of the first fixing bolt (24) and inside the clamp (2). The inner hub shell (3) has an internal groove (5). A central shaft (6) is inserted into the two internal grooves (5). A positioning block (7) is fitted on the outside of the central shaft (6). Two corresponding fixing seats (16) are fixedly connected inside the outer hub shell (1). An arc-shaped positioning bow (12) is bolted between the two fixing seats (16). The arc-shaped positioning bow (12) has a first positioning groove (13) and a second positioning groove (15). The positioning block (7) has a sliding groove (14). The arc-shaped positioning bow (12) is slidably connected to the inside of the positioning block (7).

2. The movable shaft lifting and positioning device according to claim 1 and its application in a bicycle wheel hub, characterized in that: The positioning block (7) has a shaft groove (22) inside, the central shaft (6) is inserted into the shaft groove (22), the central shaft (6) has a slot (8) inside, and a T-shaped block (9) is inserted into the slot (8), with one end of the T-shaped block (9) inserted into the shaft groove (22).

3. The movable shaft lifting and positioning device according to claim 1 and its application in a bicycle wheel hub, characterized in that: A compression spring (10) is provided on the outside of the central shaft (6). One end of the compression spring (10) cooperates with the inner wall of the inner groove (5), and the other end of the compression spring (10) cooperates with the positioning block (7).

4. The movable shaft lifting and positioning device according to claim 1 and its application in a bicycle wheel hub, characterized in that: The positioning block (7) cooperates with the second positioning groove (15) and the first positioning groove (13).

5. The movable shaft lifting positioner according to claim 1 and its application in a bicycle wheel hub, characterized in that: The inner hub shells (3) are provided with a plurality of second fixing grooves (26), and second fixing bolts (25) are inserted into the interior of the second fixing grooves (26).

6. The movable shaft lifting positioner according to claim 1 and its application in a bicycle wheel hub, characterized in that: The outer hub shell (1) is provided with a side cover (18) on the outside. Both ends of the central shaft (6) extend to the outside of the side cover (18). One end of the central shaft (6) is fitted with a flywheel (19), and the other end of the central shaft (6) is fitted with a brake disc. A second connecting shaft (17) is inserted into the interior of the central shaft (6). The second connecting shaft (17) is in contact with one side of the T-shaped block (9).

7. The movable shaft lifting positioner according to claim 1 and its application in a bicycle wheel hub, characterized in that: Two corresponding washers (4) are sleeved on the outside of the first fixing bolt (24), and the washers (4) are in contact with the inner hub shell (3).

8. The movable shaft lifting positioner according to claim 1 and its application in a bicycle wheel hub, characterized in that: The positioning block (7) has a second insertion groove (23) inside, and the inner hub shell (3) has a first insertion groove (20) inside. Insertion rods (21) are inserted into the first insertion groove (20) and the second insertion groove (23).

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