Bicycle repair stand

Abstract

The utility model provides a bicycle maintenance support, the bicycle maintenance support includes inner tube 1 and outer tube 2, inner tube 1 is arranged in the outer tube 2, and the first end of outer tube 2 is provided with operating assembly 3, and the first end of inner tube 1 is connected with operating assembly 3, and the second end of inner tube 1 is provided with clamping assembly 4, and operating assembly 3 includes rotating part 31, and outer tube 2 is provided with guide portion 5, and rotating part 31 is arranged in guide portion 5 and is connected with inner tube 1, and guide portion 5 can guide rotating part 31 to push out clamping assembly 4 to make clamping assembly 4 free rotation, or pull back clamping assembly 4 to make clamping assembly 4 relative to outer tube 2 fixed. The utility model provides a bicycle maintenance support, can solve the problem that the angle adjustment of existing bicycle maintenance support is operated complicatedly, and the maintenance efficiency and user experience are reduced seriously.

Description

Technical Field

[0001] This utility model relates to the field of bicycle fixing device technology, and more specifically, to a bicycle repair bracket. Background Technology

[0002] Whether for daily commutes or exercise, bicycles have become an indispensable part of people's lives. However, with increased usage, the need for bicycle maintenance and repair is also growing, highlighting the importance of bicycle repair stands. Bicycle repair stands not only securely and stably hold the bicycle in place, providing all-around repair angles and greatly improving repair efficiency, but also prevent secondary damage caused by direct contact between the bicycle frame and the ground, extending the bicycle's lifespan.

[0003] Existing bicycle repair stands mostly employ a design with a fixed base and adjustable clamps, allowing for multi-angle display and repair of the bicycle through column height adjustment and head rotation mechanisms. However, the clamps of existing bicycle stands are typically secured with multiple locking bolts. When adjusting the rotation angle, users must manually remove the bolts to unlock them, adjust the angle, and then manually reinstall the bolts to lock them. Alternatively, they may use a worm gear mechanism, requiring repeated rotation of the handle to rotate the head. These angle adjustment methods are cumbersome and time-consuming, significantly reducing repair efficiency and user experience. Utility Model Content

[0004] The main purpose of this utility model is to provide a bicycle repair bracket that can solve the problem of cumbersome angle adjustment operation of existing bicycle repair brackets, which seriously reduces repair efficiency and user experience.

[0005] To achieve the above objectives, according to one aspect of the present invention, a bicycle repair bracket is provided, comprising an inner tube and an outer tube, the inner tube being inserted inside the outer tube, an operating component being provided at the first end of the outer tube, the first end of the inner tube being connected to the operating component, and a clamping component being provided at the second end of the inner tube. The operating component includes a rotating part, and a guide part is provided on the outer tube. The rotating part is inserted inside the guide part and connected to the inner tube. The guide part can guide the rotating part to push out the clamping component so that the clamping component can rotate freely, or pull back the clamping component so that the clamping component is fixed relative to the outer tube.

[0006] Furthermore, the rotating part is provided with a first protrusion, and the inner wall of the guide part is provided with a guide groove. The first end of the guide groove away from the clamping component is the locked position, and the second end of the guide groove is the unlocked position. The first protrusion slides along the guide groove to switch between the locked position and the unlocked position.

[0007] Furthermore, the guide groove includes an inclined section and a flat section disposed at one end of the inclined section. The inclined section extends spirally along the inner wall of the guide portion, and the flat section extends circumferentially at the end of the inclined section. A limiting portion is provided on the flat section, which can limit the first protrusion.

[0008] Furthermore, the guide section is provided with a load-reducing hole, which is located on the side of the limiting section away from the guide groove to make the limiting section elastic.

[0009] Furthermore, the second end of the outer tube is provided with a first circumferential limiting member, the second end of the inner tube is provided with a second circumferential limiting member, and the clamping assembly is disposed on the second circumferential limiting member. When the operating component is in the locked position, the first circumferential limiting member and the second circumferential limiting member are engaged and fixed, and the inner tube and the clamping assembly on it are fixed relative to the outer tube. When the operating component is in the unlocked position, the first circumferential limiting member and the second circumferential limiting member are disengaged, and the inner tube and the clamping assembly on it can rotate relative to the outer tube.

[0010] Furthermore, the clamping assembly includes a first clamp and a second clamp. The second clamp is disposed on the second circumferential limiting member. The first clamp is connected to the second clamp through a first elastic member. One of the first clamp and the second clamp is provided with a mounting hole, and the other is provided with a through hole. The clamping assembly also includes an adjusting screw, which passes through the through hole and the mounting hole. The adjusting screw can drive the first clamp and the second clamp to perform opening and closing movements to adjust the size of the clamping space.

[0011] Furthermore, the adjusting screw is threadedly connected to the mounting hole, or the clamping assembly further includes a quick-lock assembly, which includes a snap-fit ​​part rotatably mounted on the second chuck. The first end of the snap-fit ​​part can engage with the adjusting screw, and a second elastic element is provided between the snap-fit ​​part and the second chuck. The second elastic element can provide a driving force for the first end of the snap-fit ​​part to engage with the adjusting screw.

[0012] Furthermore, a second elastic element is disposed between the second end of the snap-fit ​​portion and the second clamp. The second elastic element can apply an elastic force to the second end of the snap-fit ​​portion in a direction away from the second clamp, so that the first end of the snap-fit ​​portion engages with the adjusting screw.

[0013] Furthermore, the snap-fit ​​part is rotatably mounted on the second clamp via a rotating shaft, and the second elastic element is a torsion spring sleeved on the rotating shaft. The torsion spring can apply an elastic force to the first end of the snap-fit ​​part so that the first end of the snap-fit ​​part engages with the adjusting screw.

[0014] Furthermore, the bicycle bracket also includes a column, a storage tray, and a mounting base. One end of the column is connected to the outer tube, and the other end is connected to the mounting base. The angle between the column and the mounting base is less than 90°.

[0015] Furthermore, the column is provided with an end sleeve, and the end sleeve is provided with a horizontal mounting groove. The storage tray is connected to the column through the mounting groove so that the storage tray remains horizontal when it rotates around the column.

[0016] Applying the technical solution of this utility model, the inner tube is used to support the clamping assembly and connect the clamping assembly and the operating assembly, while the outer tube provides an installation base for the operating assembly. The first end of the outer tube is equipped with the operating assembly, which controls the relative movement of the inner and outer tubes. The second end of the inner tube is equipped with the clamping assembly, which directly contacts the bicycle frame to fix the bicycle, ensuring it will not move or tip over during repair, thus guaranteeing smooth repair operations. The operating assembly includes a rotating part connected to the inner tube. The user can rotate the inner tube by operating the rotating part. A guide part guides the rotation of the rotating part, causing it to rotate while also generating axial movement along the inner tube, thereby pushing out the clamping assembly to allow it to rotate freely, or pulling back the clamping assembly to fix it relative to the outer tube. The bicycle repair bracket provided by this utility model only requires rotating the rotating part to push out or retract the clamping assembly to unlock and lock it. Compared to existing technologies using bolts or worm gears, this greatly simplifies the angle adjustment steps during bicycle repair, thus significantly improving repair efficiency and user experience. Attached Figure Description

[0017] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 A schematic diagram of the overall structure of the bicycle repair bracket of this utility model is shown at a first angle;

[0019] Figure 2 It shows Figure 1 A magnified view of part A in the middle;

[0020] Figure 3 An exploded view of the clamp of the bicycle repair bracket of this utility model is shown;

[0021] Figure 4 An exploded view of the clamping assembly of the bicycle repair bracket of this utility model is shown;

[0022] Figure 5 A cross-sectional view of the bicycle repair bracket of this utility model in the unlocked state is shown;

[0023] Figure 6 A cross-sectional view of the bicycle repair bracket of this utility model in the locked state is shown;

[0024] Figure 7 A cross-sectional view of the clamping assembly of the bicycle repair bracket of this utility model in the clamping state is shown;

[0025] Figure 8 A cross-sectional view of the guide portion of the bicycle repair bracket of this utility model is shown;

[0026] Figure 9 A schematic diagram of the overall structure of the bicycle repair bracket of this utility model from a second angle is shown;

[0027] Figure 10 An exploded view of the storage tray of the bicycle repair bracket of this utility model is shown;

[0028] Figure 11 The front view of the end sleeve and storage tray of the bicycle repair bracket of this utility model is shown;

[0029] Figure 12 A schematic diagram of the overall structure of the bicycle repair bracket of this utility model in a folded state is shown.

[0030] Figure 13 A schematic diagram of the overall structure of the bicycle repair bracket of this utility model during the unfolding process is shown;

[0031] Figure 14 A schematic diagram of the overall structure of the mounting base of the bicycle repair bracket of this utility model is shown;

[0032] Figure 15 A cross-sectional view of the bicycle repair bracket of this utility model is shown;

[0033] Figure 16 It shows Figure 15 A magnified view of part B in the middle section.

[0034] The above figures include the following reference numerals:

[0035] 1. Inner tube; 11. Second circumferential limiting component; 2. Outer tube; 21. First circumferential limiting component; 3. Operating assembly; 31. Rotating part; 32. First protrusion; 33. Countersunk through hole; 34. Decorative cover; 4. Clamping assembly; 41. First chuck; 42. Second chuck; 43. First elastic element; 44. Mounting hole; 45. Through hole; 46. Adjusting screw; 461. Third elastic element; 462. Knob; 463. Stop part; 47. Quick lock assembly ; 471, snap-fit ​​part; 472, second elastic element; 5, guide part; 51, guide groove; 511, inclined section; 512, flat section; 513, first limiting part; 514, unloading hole; 6, column; 61, inner tube of column; 62, outer tube of column; 63, end sleeve; 631, mounting groove; 632, storage tray; 64, connecting part; 641, guide slope; 65, spring pin; 66, second limiting part; 7, mounting base; 71, support leg; 72, connecting rod. Detailed Implementation

[0036] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] See also Figures 1 to 16 As shown, this utility model provides a bicycle repair bracket, including an inner tube 1 and an outer tube 2. The inner tube 1 is inserted inside the outer tube 2. An operating component 3 is provided at the first end of the outer tube 2. The first end of the inner tube 1 is connected to the operating component 3. A clamping component 4 is provided at the second end of the inner tube 1. The operating component 3 includes a rotating part 31. A guide part 5 is provided on the outer tube 2. The rotating part 31 is inserted inside the guide part 5 and connected to the inner tube 1. The guide part 5 can guide the rotating part 31 to push out the clamping component 4 so that the clamping component 4 can rotate freely, or pull back the clamping component 4 so that the clamping component 4 is fixed relative to the outer tube 2.

[0038] In the above technical solution, the inner tube 1 is used to support the clamping assembly 4 and connect the clamping assembly 4 with the operating assembly 3, while the outer tube 2 provides an installation base for the operating assembly 3. The first end of the outer tube 2 is equipped with the operating assembly 3, which controls the relative movement between the inner tube 1 and the outer tube 2. The second end of the inner tube 1 is equipped with the clamping assembly 4, which directly contacts the bicycle frame to fix the bicycle, ensuring that the bicycle will not move or tip over during maintenance, thus guaranteeing the smooth progress of the maintenance operation. The operating assembly 3 includes a rotating part 31 connected to the inner tube 1. The user can rotate the inner tube 1 by operating the rotating part 31. The guide part 5 guides the rotation of the rotating part 31, enabling it to rotate while also generating axial movement along the inner tube 1, thereby pushing out the clamping assembly 4 to allow it to rotate freely, or pulling back the clamping assembly 4 to fix it relative to the outer tube 2.

[0039] The bicycle repair bracket provided by this utility model can unlock and lock the clamping component simply by rotating the rotating part 31 to push out or retract the clamping component 4. Compared with the existing technology that uses bolts or worm gears, it greatly simplifies the operation steps of angle adjustment in the bicycle repair process, thereby significantly improving the bicycle repair efficiency and user experience.

[0040] In one embodiment of the present invention, a first protrusion 32 is provided on the rotating part 31, and a guide groove 51 is provided on the inner wall of the guide part 5. The first end of the guide groove 51 away from the clamping component 4 is the locked position, and the second end of the guide groove 51 is the unlocked position. The first protrusion 32 slides along the guide groove 51 to switch between the locked position and the unlocked position.

[0041] In the above technical solution, the first protrusion 32 is part of the rotating part 31, and it can slide within the guide groove 51 on the guide part 5. The guide groove 51 is provided on the inner wall of the guide part 5 to guide the movement of the first protrusion 32. The first end of the guide groove 51 away from the clamping assembly 4 is the locked position, and the second end of the guide groove 51 is the unlocked position. When the rotating part 31 rotates, the first protrusion 32 moves along the path of the guide groove 51, thereby switching between the locked position and the unlocked position. When the first protrusion 32 moves to the locked position, the rotating part 31 pulls back the clamping assembly 4 to fix the clamping assembly 4 relative to the outer tube 2. When the first protrusion 32 moves to the unlocked position, the rotating part 31 pushes out the clamping assembly 4 to allow the clamping assembly 4 to rotate freely.

[0042] In one embodiment of this utility model, a countersunk through hole 33 is provided in the rotating part 31, and a screw is provided in the countersunk through hole 33 and threadedly connected to the inner tube 1.

[0043] In the above technical solution, the countersunk hole 33 is designed to accommodate the screw, so that the screw head is hidden inside the rotating part 31, which simplifies the appearance of the product. At the same time, the screw connects the rotating part 31 to the inner tube 1, which also facilitates the maintenance and assembly of the product and reduces the complexity of the maintenance and assembly process of the maintenance bracket.

[0044] In one embodiment of this utility model, a decorative cover 34 is provided on the top cover of the countersunk through hole 33.

[0045] In the above technical solution, the decorative cover 34 covers the countersunk hole 33, concealing the internal screws and other connecting structures, resulting in a cleaner product appearance and enhanced overall aesthetics, conforming to modern design standards. Simultaneously, the decorative cover 34 prevents users from accidentally contacting the screws or connectors within the countersunk hole 33 during operation, avoiding potential finger cuts or other accidental injuries, thus increasing safety during equipment use. Furthermore, the decorative cover 34 protects the screws within the countersunk hole 33 from external environmental factors such as dust and oil stains, reducing the risk of shortened screw lifespan due to corrosion or contamination, and maintaining the long-term stability and reliability of the product.

[0046] In one embodiment of the present invention, the guide groove 51 includes an inclined section 511 and a flat section 512 disposed at one end of the inclined section 511. The inclined section 511 extends spirally along the inner wall of the guide portion 5, and the flat section 512 extends circumferentially at the end of the inclined section 511. A first limiting portion 513 is disposed on the flat section 512, and the first limiting portion 513 can limit the first protrusion 32.

[0047] In the above technical solution, the inclined section 511 extends spirally along the inner wall of the guide portion 5. Its main function is to guide the first protrusion 32 to move axially during rotation, thereby ensuring that the rotating portion 31 can push out or pull back the clamping assembly 4 axially during rotation. The flat section 512 extends circumferentially at the end of the inclined section 511 to limit the first protrusion 32 from further axial movement. When the first protrusion 32 rotates to the flat section 512, the rotating portion 31 has already moved a sufficient distance axially to push out or pull back the clamping assembly 4 to the predetermined position. Therefore, the flat section 512 is provided to axially limit the first protrusion 32. The first limiting part 513 provided on the flat section 512 is used to circumferentially limit the first protrusion 32 to prevent it from exceeding the predetermined rotation range. The first limiting part 513 cooperates with the flat section 512 to realize the axial and circumferential limiting of the first protrusion 32, ensuring that the rotating part 31 can be locked in the current position after rotating to the predetermined position. This prevents the rotating part 31 from accidentally rotating and affecting the clamping assembly 4 during the adjustment of the clamping angle of the clamping assembly 4 or when locking the clamping angle, thereby improving the reliability and accuracy of the angle adjustment.

[0048] In one embodiment of the present invention, a load-reducing hole 514 is provided on the guide portion 5. The load-reducing hole 514 is provided on the side of the first limiting portion 513 away from the guide groove 51 so that the first limiting portion 513 has elasticity.

[0049] In the above technical solution, the load-reducing hole 514 is disposed on the side of the first limiting part 513 away from the guide groove 51, making the first limiting part 513 elastic. This ensures that when the first protrusion 32 moves along the guide groove 51 and contacts and passes through the first limiting part 513, the first limiting part 513 can elastically deform in the direction of the load-reducing hole 514, reducing the interaction force between the first limiting part 513 and the first protrusion 32. This avoids rigid contact between the two causing structural wear, which could weaken or fail the limiting effect. Simultaneously, by providing the load-reducing hole 514, without affecting the limiting effect of the first limiting part 513 on the first protrusion 32, the operating resistance is appropriately reduced. This allows the user to receive a smoother feedback when operating the rotating part 31 to enter the predetermined position, improving the user experience.

[0050] In one embodiment of this utility model, a first circumferential limiting member 21 is provided at the second end of the outer tube 2, and a second circumferential limiting member 11 is provided at the second end of the inner tube 1. A clamping assembly 4 is disposed on the second circumferential limiting member 11. When the operating component 3 is in the locked position, the first circumferential limiting member 21 and the second circumferential limiting member 11 are engaged and fixed, and the inner tube 1 and its clamping assembly 4 are fixed relative to the outer tube 2. When the operating component 3 is in the unlocked position, the first circumferential limiting member 21 and the second circumferential limiting member 11 are disengaged, and the inner tube 1 and its clamping assembly 4 can rotate relative to the outer tube 2. For example, the end face of the first circumferential limiting member 21 facing the second circumferential limiting member 11 is provided with a first end face tooth, and the end face of the second circumferential limiting member 11 facing the first circumferential limiting member 21 is provided with a second end face tooth. When the rotating part 31 rotates, it can generate movement along the axial direction of the inner tube 1, thereby pushing out or pulling back the clamping assembly 4, so that the first end face teeth and the second end face teeth disengage or engage.

[0051] In the above technical solution, the first circumferential limiting member 21 and the second circumferential limiting member 11 include teeth that can mesh with each other. The first circumferential limiting member 21 and the second circumferential limiting member 11 cooperate with each other to adjust the movement state of the inner tube 1 and the clamping assembly 4 on it. When the user operates the rotating part 31 to move the first protrusion 32 to the locking position, the inner tube 1 and the second circumferential limiting member 11 and the clamping assembly 4 on it are pulled inward until the first protrusion 32 reaches the locking position. The second circumferential limiting member 11 meshes with the first circumferential limiting member 21, thereby fixing the clamping assembly 4 to lock the clamping angle of the bicycle, preventing the clamping assembly 4 from rotating relative to the outer tube 2, and improving the stability and safety during bicycle maintenance. When the user operates the rotating part 31 to move the first protrusion 32 to the unlock position, the inner tube 1 and its second circumferential limiting member 11 and clamping assembly 4 are pushed outward until the first protrusion 32 reaches the unlock position. The second circumferential limiting member 11 disengages from the first circumferential limiting member 21. At this time, the user can freely rotate the clamping assembly 4 to adjust the clamping angle of the bicycle, which greatly simplifies the angle adjustment steps and improves the flexibility and adaptability of the bicycle repair bracket.

[0052] In one embodiment of this utility model, the clamping assembly 4 includes a first clamp 41 and a second clamp 42. The second clamp 42 is disposed on the second circumferential limiting member 11. The first clamp 41 is connected to the second clamp 42 through a first elastic member 43. One of the first clamp 41 and the second clamp 42 is provided with a mounting hole 44, and the other is provided with a through hole 45. The clamping assembly 4 also includes an adjusting screw 46, which passes through the through hole 45 and the mounting hole 44. The adjusting screw 46 can drive the first clamp 41 and the second clamp 42 to perform opening and closing movements to adjust the size of the clamping space.

[0053] In the above technical solution, the first clamp 41 and the second clamp 42 are in direct contact with the bicycle. The clamping and releasing of the bicycle is achieved through the opening and closing motion between the first clamp 41 and the second clamp 42. When the first clamp 41 and the second clamp 42 work together to clamp the bicycle, the stability of the bicycle during repair or assembly is ensured. Furthermore, the combination of the two clamps can accommodate bicycles of different sizes, improving the versatility and applicability of the repair bracket. The first clamp 41 and the second clamp 42 are connected by a first elastic element 43, such as a torsion spring. The torsion spring can apply an outward opening force to the first clamp 41 and the second clamp 42. When the adjusting screw 46 is released and no longer applies external force to the first clamp 41 and the second clamp 42, the torsion spring can return the first clamp 41 and the second clamp 42 to their initial open position, simplifying the operation process and saving operation time.

[0054] The structure of the mounting hole 44 and the through hole 45 ensures that the adjusting screw can smoothly pass through the chucks and adjust the distance between the chucks by rotation. The through hole 45 has a larger opening, providing a greater range of motion for the adjusting screw 46 when the chuck with the through hole 45 opens and closes, preventing interference between the adjusting screw 46 and the chuck and thus ensuring proper opening and closing. The mounting hole 44 provides the mounting position for the adjusting screw 46. The combined effect of the mounting hole 44 and the through hole 45 achieves precise guidance and positioning of the adjusting screw, ensuring a smooth and accurate adjustment process. The adjusting screw 46 is a key component of the clamping assembly. Operating the adjusting screw 46 causes relative movement between the first chuck 41 and the second chuck 42, changing the distance between them and thus adjusting the clamping space. The linear motion characteristics of the screw allow the user to precisely control the distance between the first chuck 41 and the second chuck 42, preventing damage to the bicycle due to over-clamping and also preventing poor bicycle stability due to insufficient clamping force. When the user needs to clamp and secure the bicycle, rotating the adjusting screw 46 causes it to press one of the first clamp 41 and the second clamp 42 against the other, thereby reducing the distance between the clamps and securing the bicycle. When the user needs to remove the bicycle from the maintenance stand, rotating the adjusting screw 46 in the opposite direction releases the clamp. At this time, the first clamp 41 and the second clamp 42 maintain an outward opening tendency under the elastic force of the torsion spring, and the first clamp 41 and the second clamp 42 can return to their initial open position without the user having to manually open the clamps.

[0055] In one embodiment of the present invention, a third elastic element 461 is sleeved on the portion of the adjusting screw 46 located within the clamping space, and a knob 462 is provided at one end of the adjusting screw 46, and a stop portion 463 is provided at the other end.

[0056] In the above technical solution, a third elastic element 461, such as a spring, is sleeved on the portion of the adjusting screw 46 located within the clamping space. When the adjusting screw 46 is released, the third elastic element 461 can push the chuck open, thereby pushing the adjusting screw back to its original position. This eliminates the need for manual adjustment during subsequent use, saving operation time and improving work efficiency. The main function of the stop 463 is to limit the maximum stroke of the adjusting screw. Especially when the user operates the quick-lock assembly to release the locking of the adjusting screw 46, and the adjusting screw 46 automatically resets under the action of the elastic element, the stop 463 limits and stops the adjusting screw 46, preventing it from dislodging from the mounting hole 44 and the through hole 45.

[0057] In one embodiment of this utility model, the adjusting screw 46 is threadedly connected to the mounting hole 44, or the clamping assembly 4 further includes a quick-lock assembly 47, which includes a snap-fit ​​part 471. The snap-fit ​​part 471 is rotatably disposed on the second chuck 42. The first end of the snap-fit ​​part 471 can engage with the adjusting screw 46. A second elastic member 472 is provided between the snap-fit ​​part 471 and the second chuck 42. The second elastic member 472 can provide a driving force for the first end of the snap-fit ​​part 471 to engage with the adjusting screw 46.

[0058] In the above technical solution, the threaded connection between the adjusting screw 46 and the mounting hole 44 allows the user to precisely adjust the clamping force and clamping space of the clamping component 4 by rotating the adjusting screw 46, thereby achieving a stable clamping of the bicycle. At the same time, the threaded connection locks the position of the chuck, preventing the chuck from accidentally popping open and losing the clamping and fixing effect on the bicycle.

[0059] Furthermore, the quick-lock assembly 47 can also be used to quickly lock the chucks. When the quick-lock assembly 47 includes the snap-fit ​​part 471, neither the mounting hole 44 nor the through hole 45 has threads. The adjusting screw 46 can slide within the mounting hole 44 and the through hole 45. At this time, pressing the adjusting screw 46 will bring the first chuck 41 and the second chuck 42 closer together, thereby clamping the bicycle. As the adjusting screw 46 is pressed down, the snap-fit ​​part 471 can engage with the threads at different positions on the adjusting screw 46, thereby quickly locking the adjusting screw 46 and thus quickly locking the chucks. The second elastic element 472 between the snap-fit ​​part 471 and the second chuck 42 typically includes a spring. The second elastic element 472 is used to apply an elastic force to the snap-fit ​​part 471 to engage with the adjusting screw 46, ensuring that the first end of the snap-fit ​​part 471 automatically engages with the adjusting screw 46 without external operation, thus achieving a self-locking function. When unlocking is required, the operator overcomes the resistance of the second elastic element 472 and unlocks the adjusting screw 46 by pressing or other means, thereby disengaging the first end of the locking part 471 from the adjusting screw 46. This improves the convenience of locking and unlocking.

[0060] In one embodiment of the present invention, a second elastic member 472 is disposed between the second end of the snap-fit ​​portion 471 and the second clamp 42. The second elastic member 472 can apply an elastic force to the second end of the snap-fit ​​portion 471 in a direction away from the second clamp 42 so that the first end of the snap-fit ​​portion 471 engages with the adjusting screw 46.

[0061] In the above technical solution, the first end of the locking part 471 is designed with teeth that match the adjusting screw 46. When the first end of the locking part is correctly engaged with the adjusting screw 46, it can prevent the adjusting screw 46 from rotating, thereby fixing the position of the chuck assembly. The second end of the locking part 471 is connected to the second chuck 42 by a second elastic element 472. Using a second elastic element 472, such as a spring, an elastic force can be applied to the second end of the locking part 471 in a direction away from the second chuck 42, ensuring that the first end of the locking part 471 will automatically engage with the adjusting screw 46 without external operation, thus achieving a self-locking function. When the user needs to unlock, by manually pressing the second end of the locking part 471 onto the second chuck 42, the locking part 471 rotates around the rotation center, and the first end of the locking part 471 immediately disengages from the adjusting screw 46. No additional action is required to adjust the position of the locking part, realizing the quick unlocking of the quick-lock assembly, simplifying the operation process, and improving the convenience and efficiency of locking and unlocking.

[0062] In one embodiment of the present invention, which is not shown in the accompanying drawings, the snap-fit ​​part 471 is rotatably mounted on the second clamp 42 via a rotating shaft, and the second elastic member 472 is a torsion spring sleeved on the rotating shaft. The torsion spring can apply an elastic force to the first end of the snap-fit ​​part 471 so that the first end of the snap-fit ​​part 471 engages with the adjusting screw 46.

[0063] In the above technical solution, the second end of the locking part 471 is rotatably mounted on the second clamp 42 via a rotating shaft. A torsion spring is sleeved on the rotating shaft and applies an elastic force to the first end of the locking part 471. When the user presses the adjusting screw 46 to clamp and fix the bicycle, the first end of the locking part 471 automatically engages with the adjusting screw 46 under the elastic force of the torsion spring, thus achieving self-locking. The user does not need to operate the locking structure separately to lock the adjusting screw 46, greatly simplifying the locking operation process. When the user needs to unlock, he / she manually pulls the first end of the locking part 471 away from the second clamp 42, and the first end of the locking part 471 immediately disengages from the adjusting screw 46, achieving quick unlocking. After the unlocking operation is completed, the user only needs to release the locking part 471, and the locking part 471 automatically returns to its initial position engaged with the adjusting screw 46 under the elastic force of the torsion spring. This significantly reduces the difficulty and complexity of locking and unlocking operations and improves the user experience.

[0064] In one embodiment of this utility model, the bicycle repair bracket further includes a column 6, a storage tray 632, and a mounting base 7. One end of the column 6 is connected to the outer tube 2, and the other end is connected to the mounting base 7. The included angle between the column 6 and the mounting base 7 is less than 90°.

[0065] In the above technical solution, the column 6 supports the clamping components 4 and 3, as well as the bicycle clamped thereon, ensuring that the bicycle maintains a certain distance from the ground, facilitating user repair. The storage tray 632 is used to place repair tools or small parts, improving the convenience of the repair stand. The contact between the mounting base 7 and the ground ensures the stability of the overall structure. The angle between the column 6 and the mounting base 7 is less than 90°, thus forming an acute-angled triangular structure between the column 6 and the mounting base 7. This provides more stable support for the clamping components 4 and 3 on the column 6, as well as the bicycle clamped thereon, reducing the risk of the repair stand tipping over and improving the safety and reliability of the repair stand support.

[0066] In one embodiment of this utility model, an end sleeve 63 is provided on the column 6, and a horizontal mounting groove 631 is provided on the end sleeve 63. The storage tray 632 is connected to the column 6 through the mounting groove 631 so that the storage tray 632 remains horizontal when it rotates around the column 6.

[0067] In the above technical solution, by connecting the storage tray 632 to the horizontal mounting groove 631 on the end sleeve 63, even if the column 6 tilts or rotates, the storage tray 632 can always remain horizontal and parallel to the ground, preventing items from slipping off due to tilting during rotation, thus improving safety and convenience during use. The storage tray 632 can rotate circumferentially along the column 6, meaning that users can adjust the direction of the storage tray as needed without affecting its horizontality. This design increases the versatility of the storage tray, making it adaptable to different operational needs and improving work efficiency.

[0068] In one embodiment of the present invention, the mounting base 7 includes a foldable support leg 71 and a connecting part 64 disposed on the column 6. The support leg 71 is rotatably disposed on the column 6, and the connecting part 64 can be raised and lowered along the column 6. The connecting part 64 and the support leg 71 are connected by a connecting rod 72.

[0069] In the above technical solution, the foldable design of the support leg 71 allows the entire bicycle repair stand to be folded when not in use, greatly reducing storage space and facilitating carrying and storage. When unfolded, the support leg 71 provides sufficient support area to ensure the stability of the repair stand during use, preventing tipping due to improper operation or the weight of the bicycle. The connecting part 64 can be raised and lowered along the column 6, and the connecting part 64 is connected to the support leg 71 via a connecting rod 72, thus forming a linkage mechanism between the support leg 71 and the connecting part 64. When the user raises or lowers the connecting part 64, the unfolded or folded state of the support leg 71 changes accordingly. By operating the connecting part 64, multiple support legs 71 can be unfolded or folded simultaneously. This design simplifies user operation, avoiding the need for users to manually adjust the unfolded or folded state of multiple support legs individually, making the unfolding and folding operation of the support leg 71 more convenient and faster.

[0070] In one embodiment of this utility model, a spring pin 65 is also provided on the column 6, and a guide slope 641 is provided at the bottom of the connecting part 64. The guide slope 641 can push the spring pin 65 back into the column 6. A second limiting part 66 is also provided on the column 6. When the second limiting part 66 contacts the lower surface of the connecting part 64 to stop, the spring pin 65 resets and contacts the upper surface of the second limiting part 66 to stop. At this time, the support leg 71 is in the unfolded state.

[0071] In the above technical solution, when the connecting part 64 descends to a specific position of the column 6, the spring pin 65 extends under the action of the spring force and cooperates with the second limiting part 66 to prevent the connecting part 64 from moving further up and down, thereby limiting the connecting part 64. At this time, the support leg 71 is in the unfolded state. During the process of pushing the connecting part 64 downward to unfold the support leg 71, the guide slope 641 can directly contact the spring pin 65. As the guide slope 641 continues to move downward, the spring pin 65 retracts into the column 6 under the pushing and guiding action of the slope and is held in the position inside the connecting part 64 by the stop of the connecting part 64. When the connecting part 64 is pushed further downward until the second limiting part 66 contacts the stop on the lower surface of the connecting part 64, the top of the connecting part 64 is lower than the spring pin 65. Therefore, the connecting part 64 loses its stopping effect on the spring pin 65. Thus, the spring pin 65 automatically returns to the initial position of extending out of the column 6 under the elastic action and contacts the stop on the upper surface of the second limiting part 66, thereby locking the unfolded state of the support leg 71.

[0072] When the support leg 71 needs to be folded, manually press the spring pin 65 to retract the spring pin 65 into the column 6, thereby releasing the upper limit of the connecting part 64. Then, operate the connecting part 64 to move upward along the column 6, and drive the support leg 71 to complete the folding action through the connecting rod 72.

[0073] In one embodiment of this utility model, the column 6 includes an inner column tube 61 and an outer column tube 62. The inner column tube 61 is nested inside the outer column tube 62 and can extend and retract along the length direction to achieve height adjustment. The end sleeve 63 is made of a material that can undergo elastic deformation, such as plastic or rubber. The end sleeve 63 is fixed to the end of the outer column tube 62 near the telescopic interface. A quick-release locking device is provided on the end sleeve. The quick-release locking device usually includes components such as a tube seat clamp, a screw sleeve, or a pin to achieve quick locking and unlocking of the telescopic movement between the inner column tube 61 and the outer column tube 62.

[0074] In the above technical solution, when the height of the column 6 needs to be adjusted, the quick-release locking device is operated to release the lock between the inner tube 61 and the outer tube 62 of the column. At this time, there is a certain gap between the inner tube 61 and the end sleeve 63, allowing the inner tube 61 to move up and down to adjust the height of the column 6. After adjusting to the desired height, the quick-release locking device is operated to clamp the inner tube 61, thereby locking the relative position between the inner tube 61 and the outer tube 62. By setting up the quick-release locking device, the process of adjusting the height of the column 6 is greatly simplified, the time for adjusting the height of the bracket is significantly shortened, and the speed, convenience, and stability of height adjustment are achieved. This not only improves the functionality and practicality of the maintenance bracket but also significantly enhances the user's operating efficiency and experience during use.

[0075] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: the inner tube 1 is used to support the clamping component 4 and connect the clamping component 4 with the operating component 3, and the outer tube 2 is used to provide an installation base for the operating component 3. The first end of the outer tube 2 is provided with the operating component 3, which is used to control the relative movement of the inner tube 1 and the outer tube 2. The second end of the inner tube 1 is provided with the clamping component 4, which directly contacts the bicycle frame to fix the bicycle and ensure that the bicycle will not move or tip over during the maintenance process, thus ensuring the smooth progress of the maintenance operation. The operating component 3 includes a rotating part 31, which is connected to the inner tube 1. The user can drive the inner tube 1 to rotate by operating the rotating part 31. The guide part 5 guides the rotation of the rotating part 31, so that while the rotating part 31 rotates, it can also generate movement along the axial direction of the inner tube 1, thereby pushing out the clamping component 4 to allow the clamping component 4 to rotate freely, or pulling back the clamping component 4 to fix the clamping component 4 relative to the outer tube 2. The bicycle repair bracket provided by this utility model can unlock and lock the clamping component simply by rotating the rotating part 31 to push out or retract the clamping component 4. Compared with the existing technology that uses bolts or worm gears, it greatly simplifies the operation steps of angle adjustment in the bicycle repair process, thereby significantly improving the bicycle repair efficiency and user experience.

[0076] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0077] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0078] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. 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 repair bracket, characterized in that, The device includes an inner tube (1) and an outer tube (2). The inner tube (1) is inserted inside the outer tube (2). An operating component (3) is provided at the first end of the outer tube (2). The first end of the inner tube (1) is connected to the operating component (3). A clamping component (4) is provided at the second end of the inner tube (1). The operating component (3) includes a rotating part (31). A guide part (5) is provided on the outer tube (2). The rotating part (31) is inserted inside the guide part (5) and connected to the inner tube (1). The guide part (5) can guide the rotating part (31) to push out the clamping component (4) so ​​that the clamping component (4) can rotate freely, or pull back the clamping component (4) so ​​that the clamping component (4) is fixed relative to the outer tube (2).

2. The bicycle repair bracket according to claim 1, characterized in that, The rotating part (31) is provided with a first protrusion (32), and the inner wall of the guide part (5) is provided with a guide groove (51). The first end of the guide groove (51) away from the clamping assembly (4) is the locked position, and the second end of the guide groove (51) is the unlocked position. The first protrusion (32) slides along the guide groove (51) to switch between the locked position and the unlocked position.

3. The bicycle repair bracket according to claim 2, characterized in that, The guide groove (51) includes an inclined section (511) and a flat section (512) disposed at one end of the inclined section (511). The inclined section (511) extends spirally along the inner wall of the guide portion (5). The flat section (512) extends circumferentially at the end of the inclined section (511). A first limiting portion (513) is disposed on the flat section (512). The first limiting portion (513) can limit the first protrusion (32).

4. The bicycle repair bracket according to claim 3, characterized in that, The guide portion (5) is provided with a load-reducing hole (514), which is located on the side of the first limiting portion (513) away from the guide groove (51) to make the first limiting portion (513) elastic.

5. The bicycle repair bracket according to claim 1, characterized in that, The second end of the outer tube (2) is provided with a first circumferential limiting member (21), and the second end of the inner tube (1) is provided with a second circumferential limiting member (11). The clamping assembly (4) is disposed on the second circumferential limiting member (11). When the operating assembly (3) is in the locked position, the first circumferential limiting member (21) and the second circumferential limiting member (11) are engaged and fixed, and the inner tube (1) and the clamping assembly (4) on it are fixed relative to the outer tube (2). When the operating assembly (3) is in the unlocked position, the first circumferential limiting member (21) and the second circumferential limiting member (11) are disengaged, and the inner tube (1) and the clamping assembly (4) on it can rotate relative to the outer tube (2).

6. The bicycle repair bracket according to claim 5, characterized in that, The clamping assembly (4) includes a first clamp (41) and a second clamp (42). The second clamp (42) is disposed on the second circumferential limiting member (11). The first clamp (41) is connected to the second clamp (42) through a first elastic member (43). One of the first clamp (41) and the second clamp (42) is provided with a mounting hole (44), and the other is provided with a through hole (45). The clamping assembly (4) also includes an adjusting screw (46). The adjusting screw (46) passes through the through hole (45) and the mounting hole (44). The adjusting screw (46) can drive the first clamp (41) and the second clamp (42) to perform opening and closing movements to adjust the size of the clamping space.

7. The bicycle repair bracket according to claim 6, characterized in that, The adjusting screw (46) is threadedly connected to the mounting hole (44), or the clamping assembly (4) further includes a quick-lock assembly (47), the quick-lock assembly (47) includes a snap-fit ​​part (471), the snap-fit ​​part (471) is rotatably disposed on the second chuck (42), the first end of the snap-fit ​​part (471) can engage with the adjusting screw (46), a second elastic element (472) is provided between the snap-fit ​​part (471) and the second chuck (42), the second elastic element (472) can provide driving force for the first end of the snap-fit ​​part (471) to engage with the adjusting screw (46).

8. The bicycle repair bracket according to claim 7, characterized in that, The second elastic member (472) is disposed between the second end of the snap-fit ​​portion (471) and the second clamp (42). The second elastic member (472) can apply an elastic force to the second end of the snap-fit ​​portion (471) in a direction away from the second clamp (42) so that the first end of the snap-fit ​​portion (471) engages with the adjusting screw (46). Alternatively, the snap-fit ​​part (471) is rotatably mounted on the second clamp (42) via a rotating shaft, and the second elastic element (472) is a torsion spring sleeved on the rotating shaft. The torsion spring can apply an elastic force to the first end of the snap-fit ​​part (471) so that the first end of the snap-fit ​​part (471) engages with the adjusting screw (46).

9. The bicycle repair bracket according to any one of claims 1 to 8, characterized in that, The bicycle repair bracket also includes a column (6), a storage tray (632) and a mounting base (7). One end of the column (6) is connected to the outer tube (2), and the other end is connected to the mounting base (7). The included angle between the column (6) and the mounting base (7) is less than 90°. The column (6) is provided with an end sleeve (63), and the end sleeve (63) is provided with a horizontal mounting groove (631). The storage tray (632) is connected to the column (6) through the mounting groove (631) so that the storage tray (632) remains horizontal when it rotates around the column (6).

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