A bicycle hub structure that is convenient to maintain

Abstract

The utility model belongs to bicycle technical field especially is a kind of bicycle hub structure of convenient maintenance, including frame, the movable contact of center wheel disc has on the frame, both sides of the center wheel disc are rotatably connected with the pivot, the pivot is welded with limit block, two mounting blocks are welded on the side of limit block, the side of mounting block is equipped with the clamping slot.The utility model through contact knob limit, rotate knob drive screw rod rotation, screw rod is driven by moving block and moves, the corresponding clamping slot is separated with clamping pin, wheel hub is moved again, wheel hub is driven by support strip and moves center wheel disc, center wheel disc is driven by pivot and moves limit block, limit block is driven and moves corresponding mounting block, so that mounting block is separated with the corresponding cavity, so as to take down wheel hub and maintain, professional tool is not needed in the process of disassembly, it is easy to operate, it is convenient to take down wheel hub quickly and maintain.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, specifically to a bicycle hub structure that is easy to maintain. Background Technology

[0002] In the bicycle industry, the wheel hub, as a key component connecting the wheel and the frame, directly impacts the user experience due to its structural rationality and ease of maintenance. Currently, most bicycle wheel hubs on the market are connected to the frame using a nut and bolt connection. While this traditional connection structure ensures a certain degree of stability between the wheel hub and the frame, it reveals numerous inconveniences in actual use, especially when disassembly and maintenance are required.

[0003] When bicycle maintenance is required, such as changing tires, checking the condition of wheel bearings, or cleaning the wheel, the wheel must first be removed from the frame. However, due to the existing nut and bolt connection method, the disassembly process requires specialized tools, such as wrenches and sockets, to turn the nuts to loosen the connection. This not only increases the preparation work for maintenance, requiring users to prepare the necessary tools in advance, but also makes disassembly impossible without specialized tools, greatly limiting the flexibility and timeliness of maintenance. Therefore, we propose a bicycle wheel structure that facilitates maintenance to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a bicycle hub structure that is easy to maintain, and solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0008] A convenient bicycle hub structure includes a frame with a central wheel movably contacting it. A pivot is rotatably connected to both sides of the central wheel. A limit block is welded to each pivot, and two mounting blocks are welded to one side of each limit block. A slot is formed on one side of each mounting block. Multiple support spokes are welded to the central wheel, and the ends of the multiple support spokes are fixedly connected to the same wheel hub. Two grooves are formed at the bottom of the frame, and two cavities are formed on the frame. Rotary pivots are formed on the inner walls of both sides of each cavity. A lead screw is connected to the movable part, and a moving block is threaded onto the lead screw. A locking pin is provided on one side of the moving block, and the locking pin is engaged with a corresponding locking groove. The end of one of the two lead screws on the same side extends to the outside of the frame and is welded with a knob. Two rectangular holes are provided on the bottom inner wall of the cavity. The inner wall of the rectangular holes is in movable contact with the outer side of the corresponding mounting block. Limiting holes are provided on both sides of the inner wall of the groove. The inner wall of the limiting holes is in movable contact with the outer side of the corresponding rotating shaft. The limiting block is engaged with the corresponding groove.

[0009] Furthermore, the ends of the two lead screws on the same side are fixedly connected by welding to each other, and the threads of the two lead screws on the same side have opposite directions.

[0010] Furthermore, the front side of the frame has multiple locking grooves arranged in a ring, and the knob has a T-shaped rod.

[0011] Furthermore, a spring is fixedly connected between one inner wall of the T-shaped rod and one side of the corresponding knob, and the spring is movably sleeved on the corresponding T-shaped rod.

[0012] Furthermore, the T-shaped rod is engaged with one of the corresponding locking slots.

[0013] Furthermore, square rods are welded between the inner walls of the two sides of the cavity, and the square rods are slidably connected to the corresponding moving blocks.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a bicycle hub structure that is easy to maintain and has the following beneficial effects:

[0016] This invention utilizes a contact knob for positioning. Rotating the knob drives a lead screw, which in turn moves a locking pin via a moving block. The locking pin then separates from its corresponding slot, allowing the wheel hub to be removed for maintenance. The wheel hub, via a support spoke, moves a central disc, which in turn moves a limiting block via a rotating shaft. This limiting block then moves a corresponding mounting block, separating the mounting block from its corresponding cavity. No specialized tools are required during disassembly, making the operation simple, convenient, and facilitating quick removal of the wheel hub for maintenance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the vehicle frame of this utility model;

[0019] Figure 3 This is a partial three-dimensional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of a partially cut-out three-dimensional structure of the vehicle frame of this utility model;

[0021] Figure 5 This utility model Figure 4 A schematic diagram of a partial three-dimensional structure.

[0022] In the diagram: 1. Frame; 2. Center wheel; 3. Axle; 4. Limiting block; 5. Mounting block; 6. Slot; 7. Support spoke; 8. Wheel hub; 9. Groove; 10. Lead screw; 11. Moving block; 12. Locking pin; 13. Knob; 14. Rectangular hole; 15. Limiting hole; 16. Locking groove; 17. T-shaped rod; 18. Spring; 19. Square rod; 20. Cavity. Detailed Implementation

[0023] 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.

[0024] Example

[0025] like Figure 1-5As shown, an embodiment of this utility model proposes a convenient bicycle hub structure, including a frame 1, a central wheel 2 movably contacting the frame 1, and rotating shafts 3 rotatably connected to both sides of the central wheel 2. Limiting blocks 4 are welded to the rotating shafts 3, and two mounting blocks 5 are welded to one side of each limiting block 4. A slot 6 is provided on one side of each mounting block 5. Multiple support spokes 7 are welded to the central wheel 2, and the ends of the multiple support spokes 7 are fixedly connected to the same wheel hub 8. Two grooves 9 are provided at the bottom of the frame 1, and two cavities 20 are provided on the frame 1. Rotary shafts 3 are provided on both sides of the inner wall of each cavity 20. A lead screw 10 is dynamically connected, and a moving block 11 is threaded onto the lead screw 10. A locking pin 12 is provided on one side of the moving block 11, and the locking pin 12 is engaged with the corresponding locking groove 6. The end of one of the two lead screws 10 on the same side extends to the outside of the frame 1 and is welded with a knob 13. Two rectangular holes 14 are provided on the bottom inner wall of the cavity 20. The inner wall of the rectangular holes 14 is in movable contact with the outer side of the corresponding mounting block 5. Limiting holes 15 are provided on both sides of the inner wall of the groove 9. The inner wall of the limiting holes 15 is in movable contact with the outer side of the corresponding rotating shaft 3. The limiting block 4 is engaged with the corresponding groove 9.

[0026] During use, the wheel hub 8 can be disassembled by clipping, and no special tools are required during the disassembly process. The operation is simple and quick, making it easy to remove the wheel hub 8 for maintenance.

[0027] In use, when the wheel hub 8 needs to be disassembled for maintenance, pull the T-shaped rod 17. During the movement, the T-shaped rod 17 stretches the corresponding spring 18, causing the T-shaped rod 17 to separate from one of the multiple locking grooves 16. Then, turn the knob 13, which drives the corresponding lead screw 10 to rotate. The lead screw 10 drives the corresponding moving block 11 to move. Under the opposite action of the screw threads, the two moving blocks 11 on the same side move towards each other. The moving block 11 drives the corresponding locking pin 12 to move, and the locking pin 12 separates from the corresponding locking groove 6. Then, move the wheel hub 8. The wheel hub 8 drives the center wheel 2 to move through the support spoke 7. The center wheel 2 drives the limit block 4 to move through the rotating shaft 3. The limit block 4 drives the corresponding mounting block 5 to move, causing the mounting block 5 to separate from the corresponding cavity 20. Thus, the wheel hub 8 can be removed for maintenance. No special tools are needed during the disassembly process, and the operation is simple and convenient. During installation, rotating the shaft 3 causes the mounting block 5 to rotate via the limiting block 4, moving it above the shaft 3. The mounting block 5 then engages with the corresponding groove 9 via the limiting block 4. Simultaneously, the mounting block 5 is inserted into the cavity 20 through the corresponding rectangular hole 14. Pulling the T-shaped rod 17 stretches the corresponding spring 18 during its movement, causing the T-shaped rod 17 to separate from one of the multiple locking grooves 16. Rotating the knob 13 causes the knob 13 to move the moving block 11 via the lead screw 10. The moving block 11 slides on the corresponding square rod 19, causing the corresponding locking pin 12 to move and engage with the corresponding locking groove 6, thus fixing the wheel hub 8. Releasing the force on the T-shaped rod 17 resets the stretched spring 18, which then engages with another locking groove 16, thus limiting the knob 13.

[0028] In some embodiments, the ends of two lead screws 10 on the same side are fixedly connected by welding to each other, and the threads of the two lead screws 10 on the same side have opposite directions.

[0029] In some embodiments, the front side of the frame 1 is provided with a plurality of locking grooves 16 in an annular shape, and the knob 13 is provided with a T-shaped rod 17.

[0030] The knob 13 has a guide hole, and the knob 13 is slidably connected to the corresponding T-shaped rod 17 through the guide hole. The T-shaped rod 17 limits the knob 13.

[0031] In some embodiments, a spring 18 is fixedly connected between one inner wall of the T-shaped rod 17 and one side of the corresponding knob 13, and the spring 18 is movably sleeved on the corresponding T-shaped rod 17.

[0032] The spring 18 serves to reset the device.

[0033] In some embodiments, the T-shaped rod 17 is engaged with one of the corresponding locking slots 16.

[0034] In some embodiments, a square rod 19 is welded between the inner walls of both sides of the cavity 20, and the square rod 19 is slidably connected to the corresponding moving block 11.

[0035] The square rod 19 is set to limit the movement of the moving block 11, so that the moving block 11 will not be displaced during the movement.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bicycle hub structure that is easy to maintain, comprising a frame (1), characterized in that: The frame (1) has a central wheel disc (2) in contact with the frame. A rotating shaft (3) is rotatably connected to both sides of the central wheel disc (2). A limiting block (4) is welded to the rotating shaft (3). Two mounting blocks (5) are welded to one side of the limiting block (4). A slot (6) is provided on one side of the mounting block (5). Multiple support spokes (7) are welded to the central wheel disc (2). The ends of the multiple support spokes (7) are fixedly connected to the same wheel hub (8). Two grooves (9) are provided at the bottom of the frame (1). Two cavities (20) are provided on the frame (1). Lead screws (10) are rotatably connected to the inner walls of both sides of each cavity (20). A movable block (11) is connected to the upper thread. A locking pin (12) is provided on one side of the movable block (11). The locking pin (12) is engaged with the corresponding locking groove (6). The end of one of the two lead screws (10) on the same side extends to the outside of the frame (1) and is welded with a knob (13). Two rectangular holes (14) are provided on the bottom inner wall of the cavity (20). The inner wall of the rectangular hole (14) is in movable contact with the outer side of the corresponding mounting block (5). Limiting holes (15) are provided on both sides of the inner wall of the groove (9). The inner wall of the limiting hole (15) is in movable contact with the outer side of the corresponding rotating shaft (3). The limiting block (4) is engaged with the corresponding groove (9).

2. The bicycle hub structure for easy maintenance according to claim 1, characterized in that: The ends of the two lead screws (10) on the same side are fixedly connected by welding to each other, and the threads of the two lead screws (10) on the same side are opposite.

3. The bicycle hub structure for easy maintenance according to claim 2, characterized in that: The front side of the frame (1) is provided with a plurality of locking grooves (16) in a ring shape, and the knob (13) is provided with a T-shaped rod (17).

4. The bicycle hub structure for easy maintenance according to claim 3, characterized in that: A spring (18) is fixedly connected between one side of the inner wall of the T-shaped rod (17) and one side of the corresponding knob (13), and the spring (18) is movably sleeved on the corresponding T-shaped rod (17).

5. The bicycle hub structure for easy maintenance according to claim 4, characterized in that: The T-shaped rod (17) is engaged with one of the corresponding locking grooves (16).

6. The bicycle hub structure for easy maintenance according to claim 5, characterized in that: A square rod (19) is welded between the inner walls of the two sides of the cavity (20), and the square rod (19) is slidably connected to the corresponding moving block (11).

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