Bicycle assembling workbench

Abstract

The utility model relates to the technical field of bicycle assembling equipment, and particularly discloses a bicycle assembling workbench which comprises a base, a supporting mechanism is arranged above the base, a wheel fixing mechanism assembly is arranged above the supporting mechanism, and the supporting mechanism comprises a bearing plate and a first telescopic rod. Two first telescopic rods are symmetrically connected to the lower portion of the bearing plate, the wheel fixing mechanism comprises two wheel fixing mechanisms, each wheel fixing mechanism comprises a supporting plate, a first supporting block is arranged on the upper portion of each supporting plate, a second supporting block is arranged on one side of each first supporting block, and the first supporting blocks and the second supporting blocks are symmetrically connected. The workbench is used for fixing bicycle wheels, the structure is simple, operation is convenient, the wheel fixing time can be saved, the assembling efficiency of a bicycle is improved, the height of the supporting mechanism and the height of the wheel fixing mechanism can be adjusted according to the height and operation habits of workers, and the using requirements of different workers are met.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle assembly equipment, and specifically discloses a bicycle assembly workbench. Background Art

[0002] A bicycle is a small two-wheeled land vehicle, also known as a pedal bicycle or bike. After a person gets on the bike and pedals with their feet as the power source, it is an environmentally friendly means of transportation. During the production of bicycles, various components of the bicycle need to be assembled together on a bicycle assembly workbench to form a complete bicycle.

[0003] A Chinese patent with the patent number CN220994323U, a new type of bicycle assembly workbench, relates to the technical field of bicycle assembly. It includes an assembly limiting mechanism. The assembly limiting mechanism includes a support base. The top of the support base is fixedly connected with a processing table. A control panel is installed on the surface of the processing table. A spacing adjustment component is fixedly installed on the top of the processing table. A wheel limiting component is installed inside the processing table, and the wheel limiting component is used in cooperation with the spacing adjustment component. A wheel pushing and holding component is fixedly installed on the surface of the spacing adjustment component, and the number of wheel pushing and holding components is multiple groups. The utility model can limit and clamp the bicycle wheels, which is beneficial to limit the positions of the components forming the wheels, facilitate adjusting the spacing between wheel installations, and at the same time can also clamp and fix both sides of the limited wheels, which is beneficial to improving the stability of wheel placement and enhancing the quality of bicycle assembly. However, the structures and operations for wheel maintenance and limitation in the above workbench are complex and not convenient for workers to use, which to a certain extent affects the efficiency of wheel fixation and thus the assembly efficiency of bicycles. Moreover, it is not conducive to saving the manufacturing cost of the workbench. The overall height of the assembly limiting mechanism in the above workbench cannot be adjusted according to the height and operating habits of workers, which is not conducive to workers' use. Therefore, to solve the above problems, the utility model proposes a bicycle assembly workbench. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a bicycle assembly workbench with a simple structure and convenient operation for fixing bicycle wheels, which can save the time for wheel fixation, improve the assembly efficiency of bicycles, and the heights of the support mechanism and the wheel fixation mechanism can be adjusted according to the height and operating habits of workers to meet the usage requirements of different workers.

[0005] The utility model is realized through the following technical solutions:

[0006] A bicycle assembly workbench, comprising a base, a support mechanism is arranged above the base, and a wheel fixing mechanism assembly is arranged above the support mechanism. The support mechanism comprises a bearing plate and a first telescopic rod. Two first telescopic rods are symmetrically connected below the bearing plate. The wheel fixing mechanism comprises two wheel fixing mechanisms. Each wheel fixing mechanism comprises a support plate. A first support block is arranged above the support plate. A second support block is arranged on one side of the first support block. A lead screw is arranged on the side of the first support block away from the second support block. First baffles are arranged on both sides of the first support block. Second baffles are arranged on both sides of the second support block. A first pressing plate and a second pressing plate are respectively arranged on one side of the first baffle and the second baffle. A plurality of springs are connected between the first pressing plate and the first baffle. A plurality of springs are connected between the second pressing plate and the second baffle.

[0007] As a further setting of the above solution, the base comprises a bracket. A controller is arranged on one side of the bracket, which is convenient for controlling the operation of relevant components in the workbench. An upper part inside the bracket is provided with a T-shaped groove. Two reserved holes are arranged at the bottom of the T-shaped groove, which provides space for the telescopic adjustment of the first telescopic rod to support the height of the support mechanism and the wheel fixing mechanism, and can retract the support mechanism into the T-shaped groove, so that the bracket provides support for the support mechanism, reduces the pressure on the first telescopic rod by the support mechanism and the wheel fixing mechanism, and reduces the space occupied by the workbench when it is idle. A plurality of support legs are connected below the bracket, which can provide stable support for the workbench. Universal wheels are connected to the lower ends of the support legs, which is convenient for adjusting the position of the workbench. A storage box is arranged inside the bracket, which is convenient for placing tools for assembling bicycles and standard parts commonly used in bicycles.

[0008] As a further setting of the above solution, two first chutes are symmetrically arranged inside the bearing plate. Second telescopic rods are installed inside both of the two first chutes, which is convenient for pushing the wheel fixing mechanism to slide by the elongation of the second telescopic rods. The telescopic end of the first telescopic rod passes through the reserved hole, which is convenient for connecting with the bearing plate. The telescopic end of the first telescopic rod is detachably connected to the bearing plate, which is convenient for the installation and maintenance of the bearing plate and the first telescopic rod. The first telescopic rod is connected to the bracket, which can provide stable support for the support mechanism.

[0009] As a further setting of the above solution, a first convex block is connected to the middle part below the support plate. Limiting plates are arranged on both sides of the first convex block. The first convex block is slidably connected to the first sliding groove. The two limiting plates are respectively located on both sides of the bearing plate and are slidably connected to the vertical surfaces on both sides of the bearing plate. One side of the first convex block is connected to the second telescopic rod, which can drive the first convex block to slide in the first sliding groove through the expansion and contraction of the second telescopic rod to adjust the distance between the two wheel fixing mechanisms, thereby preliminarily fixing the two wheels of the bicycle. One end of the support plate is provided with a second sliding groove, which is convenient for adjusting the position of the first support block and its connecting components in the wheel fixing mechanism. A support seat is arranged at one end of the second sliding groove, which is convenient for installing the lead screw.

[0010] As a further setting of the above solution, a second convex block is arranged below the first support block. The second convex block is slidably connected to the second sliding groove, which can idle the moving direction of the first support block and its connecting components. The opposite sides of the first support block and the second support block are both arc-shaped slopes, which are convenient for fitting with the lower part of the bicycle wheel to provide support for the wheel. One side of the first support block close to the lead screw is connected with a mounting plate. The lead screw passes through the inside of the mounting plate and is rotatably connected to the mounting plate. A snap ring is arranged on the outer side of the lead screw, which can keep the lead screw stable through the friction between the snap ring and the mounting plate after the lead screw stops rotating, avoid the rotation of the lead screw, and thus avoid the movement of the first support block. The lead screw passes through the upper end of the support seat and is threadedly connected to the support seat. One end of the lead screw far away from the mounting plate is connected with a crank, which is convenient for rotating the lead screw to adjust the distance between the first support block and the second support block to fix the wheel.

[0011] As a further setting of the above solution, a first connecting plate is connected between the first baffle and the first support block, and a second connecting plate is connected between the second baffle and the second support block. The second baffle and the second support block are both detachably connected to the support plate, which is convenient for the assembly and maintenance of the above components. First limiting holes and second limiting holes are respectively arranged inside the first connecting plate and the second connecting plate. A first limiting block is arranged on one side of the first abutting plate close to the first connecting plate, and a second limiting block is arranged on one side of the second abutting plate close to the second connecting plate, which is convenient for connecting with the first limiting hole and the second limiting hole.

[0012] As a further setting of the above solution, the first limiting block and the second limiting block respectively penetrate into the interiors of the first limiting hole and the second limiting hole and are respectively slidably connected to the first limiting hole and the second limiting hole, and can idle the moving directions of the first pressing plate and the second pressing plate during the process of the first pressing plate and the second pressing plate squeezing the spring. One side of the first pressing plate close to the first baffle is connected with a first limiting shaft, and one side of the second pressing plate close to the second baffle is connected with a second limiting shaft. The first limiting shaft and the second limiting shaft respectively penetrate into the interiors of the first baffle and the second baffle and are respectively slidably connected to the first baffle and the second baffle, and can further limit the moving directions of the first pressing plate and the second pressing plate, and avoid the shaking of the first pressing plate and the second pressing plate during the process of clamping the bicycle wheel.

[0013] At least one of the multiple universal wheels in the workbench is a universal brake wheel.

[0014] The utility model has the following beneficial effects during use:

[0015] Tools required for assembling the bicycle and common standard parts can be placed in the storage box in the base and the cavity formed between the bracket and the bearing plate, which is convenient for workers to take and use, and improves the utilization rate of the space in the bracket. The design of the T-shaped groove above the bracket can, when the workbench is idle, through controlling the contraction of the first telescopic rod, retract the supporting mechanism into the interior of the T-shaped groove, so that the T-shaped groove provides support for the supporting mechanism and the wheel fixing mechanism above it, reduces the pressure on the first telescopic rod by the above mechanisms, and prolongs the service life of the first telescopic rod. In addition, the telescopic of the first telescopic rod can also adjust the ground clearance of the wheel fixing mechanism according to the height and operating habits of the worker, which is convenient for workers to assemble the bicycle.

[0016] The use of the second telescopic rod in the supporting mechanism can drive two first convex blocks to move in the first sliding groove through the telescopic of the second telescopic rod, so as to adjust the distance between the two wheel fixing mechanisms according to the model of the bicycle to be assembled. The use of the screw rod and the crank on one side of the first supporting block is convenient for workers to hold the crank and rotate the screw rod to adjust the distance between the first supporting block and the second supporting block, so that the first supporting block and the second supporting block initially fix the wheel. The design of multiple springs on one side of the first pressing plate and the second pressing plate is convenient for squeezing the two first pressing plates and the second pressing plate to both sides during the process of wheel fixing, and clamping and fixing the wheel through the rebound of the springs, and further fixing the wheel for subsequent installation of the vehicle frame on the wheel.

[0017] After the assembly is completed, separate the two wheels of the bicycle from the first supporting block and the second supporting block respectively, and remove the bicycle from the workbench. Without controlling the telescopic of the second telescopic rod and rotating the screw rod, and keeping the supporting plate and the first supporting block fixed, the bicycle wheels of the same model can be directly placed on the two wheel fixing mechanisms, saving the time for wheel fixing and improving the efficiency of bicycle assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Perspective view of the present utility model;

[0020] Figure 2 Combined perspective view of the base and the controller in the present utility model;

[0021] Figure 3 Side view of the base in the present utility model;

[0022] Figure 4 Perspective view of the support mechanism in the present utility model;

[0023] Figure 5 Perspective view of the wheel fixing mechanism in the present utility model;

[0024] Figure 6 Top view of the wheel fixing mechanism in the present utility model;

[0025] Figure 7 Combined perspective view of components such as the first support block and the first baffle in the present utility model;

[0026] Figure 8 Perspective view of the support plate in the present utility model.

[0027] In the figure: 1, base; 2, support mechanism; 3, wheel fixing mechanism; 4, controller; 11, bracket; 111, T-shaped groove; 1111, reserved hole; 12, support leg; 13, universal wheel; 14, storage box; 21, bearing plate; 211, first chute; 22, first telescopic rod; 23, second telescopic rod; 31, support plate; 311, second chute; 312, first convex block; 313, limiting plate; 314, support seat; 32, first support block; 321, second convex block; 322, arc-shaped slope; 323, mounting plate; 33, first baffle; 331, first connecting plate; 3311, first limiting hole; 34, first pressing plate; 341, first limiting block; 342, first limiting shaft; 35, spring; 36, lead screw; 361, hand crank; 362, snap ring; 37, second support block; 38, second baffle; 381, second connecting plate; 3811, second limiting hole; 39, second pressing plate; 391, second limiting block; 392, second limiting shaft. Detailed implementation manners

[0028] To enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0029] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will refer to the attached Figures 1 - 8 drawings and describe this application in detail in combination with the embodiments.

[0030] The embodiment discloses a bicycle assembly workbench, including a base 1. A support mechanism 2 is arranged above the base 1. A wheel fixing mechanism 3 assembly is arranged above the support mechanism 2. The support mechanism 2 includes a bearing plate 21 and a first telescopic rod 22. Two first telescopic rods 22 are symmetrically connected below the bearing plate 21. The wheel fixing mechanism 3 includes two wheel fixing mechanisms 3. The wheel fixing mechanism 3 includes a support plate 31. A first support block 32 is arranged above the support plate 31. A second support block 37 is arranged on one side of the first support block 32. A lead screw 36 is arranged on the side of the first support block 32 away from the second support block 37. First baffles 33 are arranged on both sides of the first support block 32. Second baffles 38 are arranged on both sides of the second support block 37. First pressing plates 34 and second pressing plates 39 are respectively arranged on one sides of the first baffles 33 and the second baffles 38. A plurality of springs 35 are connected between the first pressing plate 34 and the first baffle 33. A plurality of springs 35 are connected between the second pressing plate 39 and the second baffle 38.

[0031] As Figure 1 、 Figure 2 and Figure 3As shown in the figure, the base 1 includes a bracket 11. A controller 4 is provided on one side of the bracket 11 to facilitate the control of the operation of related components in the workbench. Above the interior of the bracket 11, a T-shaped groove 111 is provided. At the bottom of the T-shaped groove 111, two reserved holes 1111 are provided to provide space for the telescopic adjustment of the support mechanism 2 of the first telescopic rod 22 and the height of the wheel fixing mechanism 3. The support mechanism 2 can be retracted into the T-shaped groove 111, enabling the bracket 11 to support the support mechanism 2, reducing the pressure on the first telescopic rod 22 from the support mechanism 2 and the wheel fixing mechanism 3, and reducing the space occupied by the workbench when it is idle. A plurality of support legs 12 are connected below the bracket 11 to provide stable support for the workbench. The lower ends of the support legs 12 are connected with universal wheels 13 to facilitate the adjustment of the position of the workbench. Inside the bracket 11, a storage box 14 is provided to facilitate the placement of tools for assembling bicycles and common standard parts in bicycles.

[0032] As Figure 1 and Figure 4 shown in the figure, two first sliding grooves 211 are symmetrically provided inside the bearing plate 21. Second telescopic rods 23 are installed inside both of the two first sliding grooves 211 to facilitate the sliding of the wheel fixing mechanism 3 by the elongation of the second telescopic rods 23. The telescopic end of the first telescopic rod 22 penetrates through the interior of the reserved hole 1111 to facilitate the connection with the bearing plate 21. The telescopic end of the first telescopic rod 22 is detachably connected to the bearing plate 21 to facilitate the installation and maintenance of the bearing plate 21 and the first telescopic rod 22. The first telescopic rod 22 is connected to the bracket 11 to provide stable support for the support mechanism 2.

[0033] As Figure 1 , Figure 5 and Figure 8 shown in the figure, a first convex block 312 is connected to the middle of the lower part of the support plate 31. Limiting plates 313 are provided on both sides of the first convex block 312. The first convex block 312 is slidably connected to the first sliding groove 211. The two limiting plates 313 are respectively located on both sides of the bearing plate 21 and are slidably connected to the vertical surfaces on both sides of the bearing plate 21. One side of the first convex block 312 is connected to the second telescopic rod 23, and the distance between the two wheel fixing mechanisms 3 can be adjusted by driving the first convex block 312 to slide in the first sliding groove 211 through the telescopic movement of the second telescopic rod 23, thereby initially fixing the two wheels of the bicycle. A second sliding groove 311 is provided at one end of the support plate 31 to facilitate the adjustment of the position of the first support block 32 and its connecting components in the wheel fixing mechanism 3. A support seat 314 is provided at one end of the second sliding groove 311 to facilitate the installation of the lead screw 36.

[0034] As Figure 1 , Figure 5 , Figure 6 andFigure 7 As shown in the figure, a second bump 321 is provided below the first support block 32. The second bump 321 is slidably connected to the second chute 311, which can idle the moving direction of the first support block 32 and its connecting components. The opposite sides of the first support block 32 and the second support block 37 are both arc-shaped slopes 322, which are convenient for fitting with the lower part of the bicycle wheel to provide support for the wheel. A mounting plate 323 is connected to the side of the first support block 32 close to the lead screw 36. The lead screw 36 passes through the inside of the mounting plate 323 and is rotatably connected to the mounting plate 323. A snap ring 362 is provided on the outer side of the lead screw 36. After the lead screw 36 stops rotating, the lead screw 36 can be kept stable by the friction between the snap ring 362 and the mounting plate 323, avoiding the rotation of the lead screw 36, and thus avoiding the movement of the first support block 32. The lead screw 36 passes through the upper end of the support base 314 and is threadedly connected to the support base 314. One end of the lead screw 36 away from the mounting plate 323 is connected to a crank 361, which is convenient for rotating the lead screw 36 to adjust the distance between the first support block 32 and the second support block 37 to fix the wheel.

[0035] As Figure 1 , Figure 5 , Figure 6 and Figure 7 shown, a first connecting plate 331 is connected between the first baffle 33 and the first support block 32, and a second connecting plate 381 is connected between the second baffle 38 and the second support block 37. Both the second baffle 38 and the second support block 37 are detachably connected to the support plate 31, which is convenient for the assembly and maintenance of the above components. First limiting holes 3311 and second limiting holes 3811 are respectively provided inside the first connecting plate 331 and the second connecting plate 381. A first limiting block 341 is provided on the side of the first pressing plate 34 close to the first connecting plate 331, and a second limit is provided on the side of the second pressing plate 39 close to the second connecting plate 381, which is convenient for connecting with the first limiting holes 3311 and the second limiting holes 3811.

[0036] As Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, the first limiting block 341 and the second limiting block 391 respectively penetrate into the first limiting hole 3311 and the second limiting hole 3811 and are respectively slidably connected to the first limiting hole 3311 and the second limiting hole 3811, and can idle the moving directions of the first backing plate 34 and the second backing plate 39 during the process of the first backing plate 34 and the second backing plate 39 squeezing the spring 35. One side of the first backing plate 34 close to the first baffle 33 is connected with a first limiting shaft 342, and one side of the second backing plate 39 close to the second baffle 38 is connected with a second limiting shaft 392. The first limiting shaft 342 and the second limiting shaft 392 respectively penetrate into the first baffle 33 and the second baffle 38 and are respectively slidably connected to the first baffle 33 and the second baffle 38, and can further limit the moving directions of the first backing plate 34 and the second backing plate 39, and avoid the first backing plate 34 and the second backing plate 39 from shaking during the process of clamping the bicycle wheel.

[0037] Before using the bicycle assembly workbench disclosed in this embodiment, after moving the workbench to a suitable position, step on the brake of the universal brake wheel in the universal wheel 13 to fix the workbench, place a sufficient amount of tools and common standard parts required for assembling the bicycle in the storage box 14 and the cavity formed between the bracket 11 and the bearing plate 21, place a complete bicycle above the workbench, and use the controller 4 to control the telescopic movement of the two second telescopic rods 23 so that the distance between the second support blocks 37 in the two wheel fixing mechanisms 3 is less than the distance between the nearest points of the two wheels.

[0038] Name the front and rear wheels of the bicycle as wheel A and wheel B respectively. Press the two second abutting plates 39 on both sides of the second support block 37 on one side below wheel B (or wheel A, taking wheel B as an example here), so that the lower part of the wheel closely abuts against the arc-shaped slope 322 above the second support block 37. Use the controller 4 to control the second telescopic rod 23 far from wheel B. Through the contraction of the second telescopic rod 23, make the first convex block 312 slide in the first chute 211, and the two limit plates 313 slide on both sides of the bearing plate 21 respectively, adjust the position of the wheel fixing mechanism 3 and the position of the other second support block 37, and make the other second support block 37 slowly approach wheel A. When the arc-shaped slope 322 above the second support block 37 can just fit with the side of wheel A close to wheel B, turn off the second telescopic rod 23. At this time, the second abutting plates 39 on both sides of the two second support blocks 37 clamp and initially fix wheel A and wheel B respectively. During the adjustment process, hold the bicycle by hand to keep the bicycle stable. Rotate the lead screws 36 on one side of the two first support blocks 32 in sequence to adjust the positions of the two first support blocks 32, and make the two first support blocks 32 approach wheel A and wheel B respectively. During the approaching process, the sides of wheel A and wheel B far from the second support block 37 squeeze the first abutting plate 34 to both sides until the arc-shaped slopes 322 above the two first support blocks 32 completely fit with the sides of wheel A and wheel B far from the second support block 37. Stop rotating the lead screw 36, adjust the position of the snap ring 362, make one side of the snap ring 362 closely fit with the mounting plate 323, fix the position of the first support block 32, and then remove the bicycle from the workbench. The adjustment of the position of the wheel fixing mechanism 3 is completed.

[0039] Place the two wheels of the bicycle of the same model as the test bicycle to be assembled on the opposite sides of the first support block 32 and the second support block 37 in the two wheel fixing mechanisms 3 respectively, so that both sides of the wheels fit with the arc-shaped slopes 322 above the first support block 32 and the second support block 37 respectively, and make the first abutting plate 34 and the second abutting plate 39 above the two wheel fixing mechanisms 3 clamp and fix the two wheels. Use the controller 4 to simultaneously control the telescopic movement of the two first telescopic rods 22. After adjusting the ground clearance of the bearing plate 21, the wheel fixing mechanism 3 and the wheels to a suitable distance, turn off the first telescopic rods 22, and then you can take out the appropriate tools from the storage box 14 or the cavity between the bearing plate 21 and the bracket 11, and connect components such as the frame to the wheels.

[0040] Repeat the above operations of adjusting the wheel fixing mechanism 3 and the distance between the first support block 32 and the second support block 37, and it can be used to fix the wheels of bicycles of different models.

[0041] The components such as the controller 4, the support leg 12, the universal wheel 13, the storage box 14, the first telescopic rod 22, the second telescopic rod 23, the support seat 314, the first limiting shaft 342, the spring 35, the lead screw 36, the crank 361, the snap ring 362, the second limiting shaft 392, etc. disclosed in this utility model are all common standard components or components known to those skilled in the art. Their structures and principles can all be learned by those skilled in the art through technical manuals or through conventional experimental methods.

[0042] The above are only the preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this utility model shall all be included within the protection scope of this utility model.

Claims

1. A bicycle assembly workbench, comprising a base, characterized in that, Above the base is provided a support mechanism, and above the support mechanism is provided a wheel fixing mechanism assembly. The support mechanism includes a bearing plate and a first telescopic rod. Two first telescopic rods are symmetrically connected to the lower part of the bearing plate. The wheel fixing mechanism includes two wheel fixing mechanisms. The wheel fixing mechanism includes a support plate. Above the support plate is provided a first support block. On one side of the first support block is provided a second support block. On the side of the first support block away from the second support block is provided a lead screw. On both sides of the first support block are provided first baffles. On both sides of the second support block are provided second baffles. On one side of the first baffle and the second baffle are respectively provided a first pressing plate and a second pressing plate. Between the first pressing plate and the first baffle are connected a plurality of springs. Between the second pressing plate and the second baffle are connected a plurality of springs.

2. The bicycle assembly workbench according to claim 1, wherein The base includes a bracket. On one side of the bracket is provided a controller. Above the interior of the bracket is provided a T-shaped groove. At the bottom of the T-shaped groove are provided two reserved holes. Below the bracket are connected a plurality of support legs. At the lower end of the support legs are connected universal wheels. Inside the bracket is provided a storage box.

3. A bicycle assembly workbench according to claim 1, characterized in that, Inside the bearing plate are symmetrically provided two first chutes. Inside both of the first chutes are installed second telescopic rods. The telescopic end of the first telescopic rod penetrates inside the reserved hole. The telescopic end of the first telescopic rod is detachably connected to the bearing plate. The first telescopic rod is connected to the bracket.

4. A bicycle assembly workbench according to claim 1, characterized in that, In the middle of the lower part of the support plate is connected a first convex block. On both sides of the first convex block are provided limiting plates. The first convex block is slidably connected to the first chute. The two limiting plates are respectively located on both sides of the bearing plate and are slidably connected to the vertical surfaces on both sides of the bearing plate. One side of the first convex block is connected to the second telescopic rod. At one end of the support plate is provided a second chute. At one end of the second chute is provided a support seat.

5. A bicycle assembly workbench according to claim 1, characterized in that, Below the first support block is provided a second convex block. The second convex block is slidably connected to the second chute. The opposite sides of the first support block and the second support block are both arc-shaped slopes. On the side of the first support block close to the lead screw is connected a mounting plate. The lead screw penetrates inside the mounting plate and is rotatably connected to the mounting plate. On the outer side of the lead screw is provided a snap ring. The lead screw penetrates through the upper end of the support seat and is threadedly connected to the support seat. The end of the lead screw away from the mounting plate is connected to a hand crank.

6. A bicycle assembly workbench according to claim 1, characterized in that Between the first baffle and the first support block is connected a first connecting plate. Between the second baffle and the second support block is connected a second connecting plate. The second baffle and the second support block are both detachably connected to the support plate. Inside the first connecting plate and the second connecting plate are respectively provided a first limiting hole and a second limiting hole. On the side of the first pressing plate close to the first connecting plate is provided a first limiting block. On the side of the second pressing plate close to the second connecting plate is provided a second limiting block.

7. The bicycle assembly workbench according to claim 6, characterized in that The first limiting block and the second limiting block respectively penetrate into the interiors of the first limiting hole and the second limiting hole and are respectively slidably connected to the first limiting hole and the second limiting hole. A first limiting shaft is connected to one side of the first abutting plate close to the first baffle plate, and a second limiting shaft is connected to one side of the second abutting plate close to the second baffle plate. The first limiting shaft and the second limiting shaft respectively penetrate into the interiors of the first baffle plate and the second baffle plate and are respectively slidably connected to the first baffle plate and the second baffle plate.

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