Bicycle body fixing and clamping device of tail-hung bicycle frame

By designing a bicycle frame fixing clamping device for tail-mounted bicycles, and using a rotating component to adjust the position of the support block and the fixing block, the problem of insufficient adaptability of traditional clamping devices is solved, and effective clamping of different bicycles is achieved.

CN224224994UActive Publication Date: 2026-05-12YANGZHOU YUANCHEN AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU YUANCHEN AUTO PARTS CO LTD
Filing Date
2025-08-01
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional fixed clamping devices are difficult to adapt to different bicycle heights, making it difficult to complete the clamping task when loading bicycles into a self-driving vehicle.

Method used

A bicycle frame fixing clamping device for a tail-mounted bicycle frame is designed, comprising a mounting bracket and a rotating assembly. The angle and position of the support block and the fixing block are adjusted by a first lead screw and a second lead screw to adapt to different bicycle frame heights and tire diameters.

Benefits of technology

It enables effective clamping of different bicycle frames and tires, enhancing the practicality of the device and making it easy to operate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224224994U_ABST
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Abstract

The utility model provides a bicycle body fixing and clamping device of a tail-hung bicycle frame, and relates to the technical field of motor vehicle accessories. The bicycle body fixing and clamping device for the tail-hung bicycle frame comprises a mounting frame and a rotating assembly, the rotating assembly is arranged in the mounting frame and comprises a first lead screw, limiting rods are arranged on the left side and the right side of the first lead screw, the outer wall of the first lead screw is sleeved with a sliding block, and a mounting block is fixedly connected to the top of the outer wall of the sliding block; according to the bicycle body fixing and clamping device for the tail-hung bicycle frame, by arranging the rotating assembly, when a worker faces bicycles of different sizes, the angle of the supporting block can be adjusted by rotating a first lead screw, and therefore the height of the clamping block is changed; the bicycle frame clamping device can adapt to the heights of different bicycle frames, follow-up clamping work is completed, operation of workers is facilitated, and the practicability of the device is improved.
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Description

Technical Field

[0001] This utility model relates to a vehicle body fixing clamping device for a tail-mounted bicycle frame, specifically a vehicle body fixing clamping device for a tail-mounted bicycle frame, belonging to the technical field of motor vehicle parts. Background Technology

[0002] A bicycle is a two-wheeled non-motorized vehicle powered by human power. It propels the bicycle forward by pedaling, which drives the chain to power the rear wheel. It is environmentally friendly, flexible, and healthy. Of the 25 components of a bicycle, including the frame, tires, pedals, brakes, and chain, the basic components are indispensable. The frame, being the skeleton of the bicycle, bears the greatest weight of the rider and cargo. Based on the function of each component, they can be roughly divided into: Steering system: composed of handlebars, front fork, front axle, and front wheel. The rider can change direction and maintain balance by manipulating the handlebars; Drive (transmission or propulsion) system: composed of pedals, bottom bracket, chainring, cranks, chain, freewheel, rear axle, and rear wheel. The force of the rider's feet is transmitted through the pedals via components such as cranks, sprockets, chains, freewheels, and rear axles, thus propelling the bicycle forward. The braking system consists of brake components, which the rider can operate at any time to slow down or stop the bicycle, ensuring driving safety. In addition, for safety, aesthetics, and practicality, components such as lights, brackets, and bells are also installed.

[0003] Bicycles are divided into general-purpose bicycles and special-purpose bicycles, with racing bicycles belonging to the latter category. Racing bicycles are designed for competitions and can be further divided into track racing bicycles and road racing bicycles. They are characterized by high strength, light weight, and agile and nimble riding. Mountain bikes are used for riding in off-road areas, on public roads, and on public pathways. They are equipped with reinforced frames and other components, especially two-wheeled bicycles with wide tires featuring deep treads and a wide range of gears. Off-road bicycles are designed for exercise, touring, and competition. They are generally suitable for riding on poor roads or off-road terrain where there are no roads. They are characterized by high strength, small wheel diameter, coarse tire cross-section, and large tread teeth, making them resistant to impacts and falls, and offering excellent off-road performance. Electric bicycles are vehicles that use batteries as auxiliary power and, based on a regular bicycle, are equipped with a motor, controller, battery, throttle, brake levers, and other control components and a display system. Currently, users typically transport their bicycles in their private cars for long-distance mountain trips, unloading them upon arrival and riding the electric bicycle to complete the journey.

[0004] Traditional fixed clamping devices are difficult to adapt to different bicycle heights and cannot complete the clamping task when loading bicycles into a self-driving vehicle. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide a vehicle body fixing clamping device for a tail-mounted bicycle frame in order to solve the above-mentioned problems. This addresses the issue that in the prior art, when users are traveling long distances in mountainous areas and generally carry bicycles in their private cars, the fixing clamping device is difficult to adapt to the different heights of bicycles and is difficult to complete the clamping task while loading bicycles into a car.

[0007] (II) Technical Solution

[0008] This utility model is achieved through the following technical solution: a vehicle body fixing clamping device for a tail-mounted bicycle frame.

[0009] The device includes a mounting frame and a rotating assembly. The mounting frame contains a rotating assembly, which includes a first lead screw. Limiting rods are provided on the left and right sides of the first lead screw. A sliding block is sleeved on the outer wall of the first lead screw. A mounting block is fixedly connected to the top of the outer wall of the sliding block. A support block is rotatably connected to the inner wall of the mounting block. A clamping block is rotatably connected to the end of the support block away from the mounting block. A connecting rod is provided inside the clamping block. The rotating block is threadedly connected to the outer wall of the connecting rod.

[0010] Preferably, there are two sliding blocks, and the two sliding blocks are slidably connected to the limiting rod.

[0011] Preferably, the first lead screw is rotatably connected to the mounting bracket, and the limiting rod is fixedly connected to the mounting bracket.

[0012] Preferably, a second lead screw is provided on the side of the limiting rod away from the first lead screw, and the second lead screw is rotatably connected to the mounting bracket.

[0013] Preferably, the second lead screw has a positioning rod on the side away from the limiting rod, and the positioning rod is fixedly connected to the mounting bracket.

[0014] Preferably, a movable block is sleeved on the outer wall of the second lead screw, and a fixed block is fixedly connected to the top of the outer wall of the movable block.

[0015] Preferably, a rotating disk is fixedly connected to the front end of the outer wall of the second lead screw, an installation rod is fixedly connected to the middle of the inner wall of the mounting frame, and a fixing rod is fixedly connected to the top of the outer wall of the mounting frame.

[0016] This utility model provides a bicycle frame fixing clamping device for a tail-mounted bicycle frame, which has the following beneficial effects:

[0017] 1. The bicycle frame fixing clamping device of the tail-mounted bicycle frame, by setting a rotating component, allows the operator to adjust the angle of the support block by rotating the first lead screw when facing bicycles of different sizes, thereby changing the height of the clamping block so that it can adapt to the height of different bicycle frames and complete the subsequent clamping work. This makes it easier for the operator to operate and enhances the practicality of the device.

[0018] 2. The bicycle frame fixing clamping device of the tail-mounted bicycle frame, by setting a second lead screw, a positioning rod and a moving block, allows the operator to control the position of the fixing block by rotating the turntable, so that it can clamp and fix tires of different sizes, making the device compatible with different bicycle tire diameters and convenient for operators to operate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of the second lead screw of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the first lead screw of this utility model;

[0022] Figure 4 This is an exploded structural diagram of the support block and clamping block of this utility model.

[0023] [Explanation of Key Component Symbols]

[0024] 1. Mounting bracket; 201. First lead screw; 202. Limiting rod; 203. Sliding block; 204. Mounting block; 205. Support block; 206. Clamping block; 207. Connecting rod; 208. Rotating block; 3. Second lead screw; 4. Positioning rod; 5. Moving block; 6. Fixing block; 7. Rotating disk; 8. Mounting rod; 9. Fixing rod. Detailed Implementation

[0025] This utility model embodiment provides a bicycle frame fixing clamping device for a tail-mounted bicycle frame.

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4The assembly includes a mounting frame 1 and a rotating component. The mounting frame 1 contains the rotating component, which includes a first lead screw 201. Limiting rods 202 are located on both sides of the first lead screw 201. A sliding block 203 is sleeved on the outer wall of the first lead screw 201. A mounting block 204 is fixedly connected to the top of the outer wall of the sliding block 203. A support block 205 is rotatably connected to the inner wall of the mounting block 204. A clamping block 206 is rotatably connected to the end of the support block 205 away from the mounting block 204. A connecting rod 207 is located inside the clamping block 206. The device has a rotating block 208 connected to the wall thread and two sliding blocks 203. The two sliding blocks 203 are slidably connected to the limiting rod 202. This bicycle frame fixing clamping device, by setting a rotating component, allows the operator to adjust the angle of the support block 205 by rotating the first lead screw 201 when facing bicycles of different sizes, thereby changing the height of the clamping block 206. This allows it to adapt to the height of different bicycle frames, complete the subsequent clamping work, facilitate the operator's operation, and enhance the practicality of the device.

[0027] Please refer to it again. Figure 1 and Figure 2 The first lead screw 201 is rotatably connected to the mounting frame 1, and the limiting rod 202 is fixedly connected to the mounting frame 1. A second lead screw 3 is provided on the side of the limiting rod 202 away from the first lead screw 201. The second lead screw 3 is rotatably connected to the mounting frame 1. A positioning rod 4 is provided on the side of the second lead screw 3 away from the limiting rod 202. The positioning rod 4 is fixedly connected to the mounting frame 1. A moving block 5 is sleeved on the outer wall of the second lead screw 3. A fixing block 6 is fixedly connected to the top of the outer wall of the moving block 5. A rotating disk 7 is fixedly connected to the front end of the outer wall of the second lead screw 3. An installation rod 8 is fixedly connected to the middle of the inner wall of the mounting frame 1. A fixing rod 9 is fixedly connected to the top of the outer wall of the mounting frame 1. This kind of bicycle frame fixing clamping device, by setting the second lead screw 3, the positioning rod 4 and the moving block 5, allows the operator to control the position of the fixing block 6 by rotating the rotating disk 7, so that it can clamp and fix tires of different sizes, making the device compatible with different bicycle tire diameters and convenient for operators to operate.

[0028] In use, the operator first places the mounting bracket 1 at a suitable position behind the vehicle, then fixes the fixing rod 9 to the vehicle to complete the installation of the mounting bracket 1. Next, the bicycle is placed on top of the mounting bracket 1, and the positions of the front and rear wheels are adjusted so that they are in contact with the outer wall of the mounting rod 8. At this point, the first lead screw 201 is rotated, causing it to rotate inside the mounting bracket 1. Simultaneously, the limiting sliding block 203, under the action of the first lead screw 201, begins to slide on the outer wall of the limiting rod 202. As the sliding block 203 moves, the mounting block 204, which is fixedly connected to the sliding block 203, also moves. The position of the support block 205, which is rotatably connected to the mounting block 204, also changes accordingly. When the sliding block 203 moves to a suitable position, the operator adjusts the angle of the support block 205 so that it is at the same horizontal level as the bicycle frame. At this point, the bicycle is clamped... Block 206 is at the same horizontal level as the bicycle frame. Then, the clamping block 206 is placed close to the bicycle frame, at which point the clamping blocks 206 are symmetrically distributed on both sides of the bicycle frame. Then, the worker inserts the connecting rod 207 into the inside of the clamping block 206, and then manually rotates the rotating block 208. At this time, the rotating block 208 applies pressure to the outer wall of the clamping block 206, and the clamping block 206 maintains its limiting and fixing position on the bicycle frame. When the worker needs to release the limiting position on the bicycle frame, the worker manually rotates the rotating block 208 to remove the connecting rod 207 from the inside of the clamping block 206. At this time, the connecting rod 207 and the rotating block 208 release the limiting position on the clamping block 206. At the same time, the worker can continue to rotate the first lead screw 201, causing the sliding block 203 to move on the outer wall of the limiting rod 202. When the sliding block 203 continues to move away from the mounting rod 8 to the limit position, the worker rotates the support block 205 to make it fit tightly against the outer wall of the mounting frame 1, thus completing the storage of the clamping device.

[0029] After the clamping block 206 has completed its position limiting the bicycle frame, when it is necessary to limit and fix the wheel, the worker straightens the wheel so that it is in contact with the outer wall of the mounting rod 8. Then, the worker manually rotates the rotating disk 7, which drives the second lead screw 3 to rotate. At this time, the moving block 5 moves on the outer wall of the positioning rod 4. As the moving block 5 gradually approaches the mounting rod 8 under the action of the second lead screw 3, the fixing block 6 also moves synchronously towards the bicycle tire. When the moving block 5 moves to the appropriate position, the fixing block 6 is close to the bicycle tire, completing the position limiting and clamping of the bicycle tire, thereby fixing the bicycle tire. When the worker needs to release the bicycle tire, the worker rotates the rotating disk 7 in the opposite direction. At this time, the rotating disk 7 drives the second lead screw 3 to move, and at the same time, the moving block 5 moves on the outer wall of the positioning rod 4 and gradually moves away from the mounting rod 8. When the moving block 5 moves to the appropriate position, the fixing block 6 releases the position limiting and fixing of the bicycle tire.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bicycle frame fixing clamping device for a tail-mounted bicycle frame, comprising a mounting bracket (1) and a rotating assembly, characterized in that: The mounting bracket (1) is equipped with a rotating assembly, which includes a first lead screw (201). Limiting rods (202) are provided on the left and right sides of the first lead screw (201). A sliding block (203) is sleeved on the outer wall of the first lead screw (201). An installation block (204) is fixedly connected to the top of the outer wall of the sliding block (203). A support block (205) is rotatably connected to the inner wall of the installation block (204). A clamping block (206) is rotatably connected to the end of the support block (205) away from the installation block (204). A connecting rod (207) is provided inside the clamping block (206). A rotating block (208) is threadedly connected to the outer wall of the connecting rod (207).

2. The bicycle frame fixing clamping device for a tail-mounted bicycle frame according to claim 1, characterized in that: There are two sliding blocks (203), and the two sliding blocks (203) are slidably connected to the limiting rod (202).

3. The bicycle frame fixing clamping device for a tail-mounted bicycle frame according to claim 1, characterized in that: The first lead screw (201) is rotatably connected to the mounting bracket (1), and the limiting rod (202) is fixedly connected to the mounting bracket (1).

4. The bicycle frame fixing clamping device for a tail-mounted bicycle frame according to claim 1, characterized in that: The limiting rod (202) is provided with a second lead screw (3) on the side away from the first lead screw (201), and the second lead screw (3) is rotatably connected to the mounting bracket (1).

5. The bicycle frame fixing clamping device for a tail-mounted bicycle frame according to claim 4, characterized in that: The second lead screw (3) is provided with a positioning rod (4) on the side away from the limiting rod (202), and the positioning rod (4) is fixedly connected to the mounting bracket (1).

6. The bicycle frame fixing clamping device for a tail-mounted bicycle frame according to claim 5, characterized in that: The second lead screw (3) is fitted with a movable block (5) on its outer wall, and a fixed block (6) is fixedly connected to the top of the outer wall of the movable block (5).

7. The bicycle frame fixing clamping device for a tail-mounted bicycle frame according to claim 6, characterized in that: The second lead screw (3) is fixedly connected to a rotating disk (7) at the front end of its outer wall, the mounting bracket (1) is fixedly connected to a mounting rod (8) at the middle of its inner wall, and the mounting bracket (1) is fixedly connected to a fixing rod (9) at the top of its outer wall.