A bicycle frame with adjustable rear wheel position

Abstract

The utility model discloses a bicycle frame that can conveniently adjust rear wheel position belongs to bicycle frame technical field, including seat tube, rear fork, adjustment connecting piece and rear wheel position adjusting piece, be equipped with rear wheel sliding slot and rear wheel limiting piece on adjustment connecting piece, be equipped with the connecting sliding slot and adjustment limiting piece that match with on rear wheel position adjusting piece, through sliding adjustment and utilize bolt fixed, realize the quick regulation of rear wheel position, the utility model discloses simple structure, convenient operation is applicable to different road condition and use demand, has promoted the adaptability and practicality of bicycle.

Description

Technical Field

[0001] This invention relates to a bicycle frame with easily adjustable rear wheel position, belonging to the field of bicycle frame technology. Background Technology

[0002] The rear wheel position of a traditional bicycle frame is usually fixed and cannot be adjusted according to road conditions, load, or tire width. In certain special usage scenarios, such as heavy-duty transportation, riding on complex road conditions, or changing to different tire sizes, the fixed rear wheel position can affect riding stability, comfort, and adaptability. Utility Model Content

[0003] The purpose of this invention is to solve the problem of the fixed and unadjustable position of the rear wheel in traditional bicycles. By using sliding adjustment and bolt fixing, the position of the rear wheel can be quickly and stably adjusted, thereby improving the applicability of the bicycle.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bicycle frame with easily adjustable rear wheel position, including a seatpost, a chainring assembly fixedly connected to the bottom of the seatpost, a rear fork disposed on the side of the seatpost away from the chainring assembly, an adjustment connector disposed at the rear end of the rear fork, a rear wheel sliding groove formed at the center of the inner side of the adjustment connector, a rear wheel limiting member fixedly connected in the rear wheel sliding groove away from the chainring assembly, an upper through hole formed above the rear wheel sliding groove, and a lower through hole formed below the rear wheel sliding groove and near the chainring assembly; the adjustment... The inner side of the connecting component is provided with a rear wheel position adjustment component. The outer side of the rear wheel position adjustment component is provided with a connecting sliding groove that matches the rear wheel limiting component. The lower part of the connecting sliding groove is provided with a rear wheel slot. The adjusting limiting component is fixedly connected to the connecting sliding groove. The wheel limiting component and the adjusting limiting component are coaxially aligned. The upper part of the connecting sliding groove is provided with an upper round hole aligned with the upper through hole. The lower part of the connecting sliding groove is provided with a lower round hole aligned with the lower through hole. The rear wheel position adjustment component and the adjusting connecting component are connected by bolts with parallel aligned upper through hole 24, upper round hole and lower through hole and lower round hole.

[0005] According to the above technical solution, a dental disc is rotatably connected to one side of the dental disc assembly.

[0006] According to the above technical solution, a brake cable limiting member is fixedly connected to the inner side of the rear fork away from the chainring.

[0007] According to the above technical solution, a folding component is provided on the side of the crank assembly away from the seat tube.

[0008] According to the above technical solution, a crossbeam is rotatably connected to one side of the folding assembly, and a head tube is provided at the tail of the crossbeam.

[0009] According to the above technical solution, the head tube is internally connected to a vertical tube by a bearing, the bottom of the vertical tube is fixedly connected to a front fork, and the tail of the front fork is provided with a front wheel groove.

[0010] Compared with existing technologies, the beneficial effects achieved by this utility model are as follows: Through its adjustable wheelbase design, users can easily adapt to tires of different widths or outer diameters, solving problems such as insufficient position or friction caused by changes in tire size. By adjusting the sliding fit between the connecting piece and the rear wheel position adjustment piece, combined with the bolt fixing structure, users can quickly and easily adjust the rear wheel position without disassembling the wheel or using special tools. The coaxial alignment design of the rear wheel limiting piece and the adjusting limiting piece ensures structural centering during adjustment, preventing misalignment and improving overall rigidity and safety. The wheelbase can be flexibly adjusted according to different road conditions, load requirements, or tire size, improving the bicycle's adaptability and stability in different usage scenarios. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the adjusting connector of this utility model; Figure 3 This is a schematic diagram of the rear wheel position adjustment component of this utility model; Figure 4 This is a perspective view of the installation of the adjusting connector and the rear wheel position adjusting component of this utility model; Figure 5 This is a side view of the installation of the adjusting connector and the rear wheel position adjusting component of this utility model; In the diagram: 1. Seatpost; 2. Rear fork; 21. Adjustment connector; 22. Rear wheel sliding groove; 23. Rear wheel limiter; 24. Upper through hole; 25. Lower through hole; 26. Brake cable limiter; 3. Rear wheel position adjuster; 31. Connecting sliding groove; 32. Rear wheel slot; 33. Adjustment limiter; 34. Upper round hole; 35. Lower round hole; 4. Crankset assembly; 41. Crankset; 5. Folding assembly; 6. Crossbeam; 61. Head tube; 62. Stem tube; 63. Front fork; 64. Front wheel slot. Detailed Implementation

[0012] 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.

[0013] See Figure 1 Combination Figure 2 , Figure 3 , Figure 4 , Figure 5 This utility model provides a technical solution: a bicycle frame with easily adjustable rear wheel position, including a seatpost 1, a chainring assembly 4 fixedly connected to the bottom of the seatpost 1, a rear fork 2 provided on the side of the seatpost 1 away from the chainring assembly 4, an adjustment connector 21 provided at the rear of the rear fork 2, a rear wheel sliding groove 22 formed at the center of the inner side of the adjustment connector 21, a rear wheel limiting member 23 fixedly connected in the rear wheel sliding groove 22 away from the chainring assembly 4, an upper through hole 24 formed above the rear wheel sliding groove 22, and a lower through hole 25 formed below the rear wheel sliding groove 22 and close to the chainring assembly 4; a rear wheel sliding groove 25 is provided on the inner side of the adjustment connector 21. The rear wheel position adjuster 3 has a connecting sliding groove 31 on its outer side that matches the rear wheel limiter 23. A rear wheel retaining groove 32 is located below the connecting sliding groove 31. An adjustment limiter 33 is fixedly connected to the connecting sliding groove 31, and the wheel limiter and adjustment limiter 33 are coaxially aligned. An upper circular hole 34, aligned with the upper through hole 24, is located above the connecting sliding groove 31, and a lower circular hole 35, aligned with the lower through hole 25, is located below the connecting sliding groove 31. The rear wheel position adjuster 3 and the adjustment connector 21 are connected by bolts through the parallel aligned upper through hole 24, upper circular hole 34, lower through hole 25, and lower circular hole 35. A chainring 41 is rotatably connected to one side of the chainring assembly 4. A brake cable limiter 26 is fixedly connected to the inner side of the rear fork 2 away from the chainring 41. A folding assembly 5 is located on the other side of the chainring assembly 4 away from the seatpost 1. A crossbeam 6 is rotatably connected to one side of the folding assembly 5, and a head tube 61 is provided at the rear of the crossbeam 6. A vertical tube 62 is connected to the bearing inside the head tube 61, and a front fork 63 is fixedly connected to the bottom of the vertical tube 62. A front wheel groove 64 is provided at the rear of the front fork 63.

[0014] Obviously, the above embodiments are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, these obvious variations or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A bicycle frame with easily adjustable rear wheel position, characterized in that, The system includes a seatpost (1), to which a chainring assembly (4) is fixedly connected. A rear fork (2) is located on the side of the seatpost (1) away from the chainring assembly (4). An adjustment connector (21) is located at the rear of the rear fork (2). A rear wheel sliding groove (22) is formed at the center of the inner side of the adjustment connector (21). A rear wheel limiting member (23) is fixedly connected in the rear wheel sliding groove (22) away from the chainring assembly (4). An upper through hole (24) is formed above the rear wheel sliding groove (22), and a lower through hole (25) is formed below the rear wheel sliding groove (22) and close to the chainring assembly (4). A rear wheel position adjusting member (3) is located inside the adjustment connector (21). The adjusting component (3) has a connecting sliding groove (31) on its outer side that matches the rear wheel limiting component (23). A rear wheel slot (32) is provided below the connecting sliding groove (31). An adjusting limiting component (33) is fixedly connected to the connecting sliding groove (31). The wheel limiting component and the adjusting limiting component (33) are coaxially aligned. An upper round hole (34) is provided above the connecting sliding groove (31) that is aligned with the upper through hole (24). A lower round hole (35) is provided below the connecting sliding groove (31) that is aligned with the lower through hole (25). The rear wheel position adjusting component (3) and the adjusting connecting component (21) are connected by bolts through the parallel aligned upper through hole (24), upper round hole (34), lower through hole (25), and lower round hole (35).

2. The bicycle frame with easily adjustable rear wheel position according to claim 1, characterized in that, The tooth plate assembly (4) is rotatably connected to a tooth plate (41) on one side.

3. A bicycle frame with easily adjustable rear wheel position according to claim 2, characterized in that, A brake line limiter (26) is fixedly connected to the inner side of the rear fork (2) away from the chainring (41).

4. A bicycle frame with easily adjustable rear wheel position according to claim 3, characterized in that, The tooth plate assembly (4) is provided with a folding assembly (5) on the side away from the seat tube (1).

5. A bicycle frame with easily adjustable rear wheel position according to claim 4, characterized in that, A crossbeam (6) is rotatably connected to one side of the folding assembly (5), and a head tube (61) is provided at the tail of the crossbeam (6).

6. A bicycle frame with easily adjustable rear wheel position according to claim 5, characterized in that, The head tube (61) is connected to a vertical tube (62) by an internal bearing. The bottom of the vertical tube (62) is fixedly connected to a front fork (63). The front fork (63) has a front wheel groove (64) at its tail.

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