Vehicle-mounted bicycle frame

Abstract

The invention provides a vehicle-mounted bicycle frame. The vehicle-mounted bicycle frame comprises a front wheel fixing device, a rear wheel fixing device, a profile and a U-shaped mounting fixing plate. The front wheel fixing device and the rear wheel fixing device are installed above the sectional material, and the U-shaped installation fixing plate is arranged below the sectional material. The front wheel fixing device comprises a front wheel base assembly, a horizontal position adjusting rod and a front wheel fixing frame, and the front wheel fixing frame is installed on the horizontal position adjusting rod. The fixing position of the front wheel can be adjusted through the horizontal position adjusting rod so as to meet the requirements of different bicycle lengths, the size during packaging and transportation needs to be reduced, transportation and storage are facilitated, and the transportation and packaging cost is also reduced. In addition, through a rear wheel anti-theft cover with a rear wheel base lock cylinder, the bicycle anti-theft effect can be achieved, and the situation that the bicycle is not stably fixed and potential safety hazards are caused in the bicycle running process due to the fact that the fixing belt is loosened to a certain degree by others without permission can be prevented.

Description

Technical Field

[0001] The invention relates to the field of bicycle racks, in particular to a vehicle-mounted bicycle rack. Background Art

[0002] A vehicle bike rack is a device used to transport bicycles on a vehicle. There are different ways to carry a vehicle bike rack, including rear-mounted, rear-mounted, and roof-mounted. Different types of vehicle bike racks can be installed in the trunk, trailer, roof, or trailer of the vehicle. The choice of installation method depends on the user's needs and the type of vehicle.

[0003] Common rooftop bicycle racks in the prior art include front wheel fixing devices and rear wheel fixing devices to fix the front and rear wheels of the bicycle respectively. From the perspective of safety, it is necessary to maintain safety and stability, which includes the use of appropriate locking mechanisms and safety belts to prevent the bicycle from sliding or tilting. In addition, the design of the vehicle-mounted bicycle rack should be easy to install, uninstall and store so that users can use them conveniently.

[0004] Conventional front wheel fixing devices in the prior art are used to open or store the mechanism for fixing the front wheel by folding and flipping. However, due to the foldable flipping method, the fixing of the front wheel of the bicycle in the vertical direction is not stable enough. In addition, the conventional front wheel fixing mechanism in the prior art is not stable enough for fixing the front wheel in the left and right directions. During the driving of the vehicle, the stability of the front wheel after being fixed is not good.

[0005] Conventional rear wheel fixing devices in the prior art are usually provided with a fixing belt for fixing the rear wheel of a bicycle, and the fixing belt is passed around the steel ring of the rear wheel to fix the rear wheel. However, after the fixing belt is used, others may loosen the fixing belt without permission, thus causing the bicycle to be unstable and causing safety hazards during vehicle driving. In addition, in this way, the rear wheel fixing device of the roof bicycle rack may also be stolen from the profile used to install the roof bicycle rack on the roof, and the theft prevention is not possible.

[0006] Some vehicle-mounted bicycle racks in the prior art may cause bicycles to be unstable during transportation, which may pose a threat to road safety and may damage the bicycles; the locking mechanisms of some vehicle-mounted bicycle racks may not be secure enough and may be easily damaged or stolen, which may result in the loss of bicycles. Summary of the invention

[0007] The present invention provides a vehicle-mounted bicycle rack to solve at least one of the above technical problems.

[0008] To solve the above problems, as one aspect of the present invention, a vehicle-mounted bicycle rack is provided, comprising: a front wheel fixing device, a rear wheel fixing device, a profile and a U-shaped mounting fixing plate; the front wheel fixing device and the rear wheel fixing device are installed above the profile, and the U-shaped mounting fixing plate is arranged below the profile;

[0009] The front wheel fixing device comprises a front wheel base assembly, a horizontal position adjustment rod and a front wheel fixing frame, the front wheel fixing frame is mounted on the horizontal position adjustment rod, the horizontal position adjustment rod passes through the front wheel base assembly in a horizontal direction, and the horizontal position adjustment rod is adjustably connected to the front wheel base assembly in a horizontal direction;

[0010] The rear wheel fixing device includes a rear wheel base, a fixing belt, a rear wheel anti-theft cover and a locking assembly, one end of the fixing belt is connected to a first side of the rear wheel base, one end of the rear wheel anti-theft cover is arranged in a mounting groove on a second side of the rear wheel base, the locking assembly is arranged on the second side of the rear wheel base, the locking assembly includes a tightening state for tightening the fixing belt and a loosening state for loosening the fixing belt, the rear wheel anti-theft cover is locked with the rear wheel base through a rear wheel base lock cylinder; when the rear wheel anti-theft cover is locked with the rear wheel base, it is located in a position that prevents the locking assembly from switching to the loosening state.

[0011] Preferably, the front wheel base assembly includes a front wheel base and a pressure plate, a first guide groove is formed on the upper surface of the front wheel base, a second guide groove corresponding to the first guide groove is formed on the pressure plate, the pressure plate is installed on the upper surface of the front wheel base, and the horizontal position adjustment rod is located in the space enclosed by the first guide groove and the second guide groove.

[0012] Preferably, the front wheel base assembly also includes a movable tail stock, one end of the horizontal position adjustment rod is installed in the tail stock mounting hole of the movable tail stock; a positioning protrusion for fixing the horizontal position adjustment rod is provided on the top of the movable tail stock, the front wheel base is connected to the profile by a front wheel base fixing screw, and a guide portion matching the groove on the profile is provided on the bottom of the movable tail stock.

[0013] Preferably, the front wheel base assembly also includes a front wheel base cover and a locking pad, the front wheel base cover is provided with a front wheel base lock core, the front wheel base cover is lockably and detachably connected to the front wheel base through the front wheel base lock core, and a packaging space for hiding the fasteners on the front wheel base is formed between the front wheel base cover and the front wheel base; the locking pad is arranged on the top of the front wheel base, the locking pad is provided with a front wheel base lock hole, and the front wheel base lock core is provided with a front wheel base locking groove that cooperates with the front wheel base lock hole.

[0014] Preferably, the front wheel fixing frame includes a U-shaped frame and a front wheel fixing part, the lower end of the U-shaped frame is rotatably connected to the horizontal position adjusting rod and the rotation angle range can be limited, and the front wheel fixing part is connected to the U-shaped frame in an adjustable and lockable position; the front wheel fixing part includes a rack, a U-shaped fixing piece, a clamping block and a first torsion spring, the rack is arranged along the extension direction of the U-shaped frame and is connected to the U-shaped frame, the U-shaped fixing piece is slidably connected to the U-shaped frame, the clamping block is rotatably connected to the U-shaped fixing piece through the first torsion spring, and the clamping block is clamped with the rack under the action of the first torsion spring.

[0015] Preferably, one end of the rear wheel anti-theft cover is rotatably connected to the rear wheel base through a pin shaft, and the rear wheel base lock core is arranged at the other end of the rear wheel anti-theft cover; the locking assembly comprises a locking card plate, a wrench and a second torsion spring, the locking card plate is rotatably arranged in the mounting slot through a first axis, the wrench is rotatably arranged in the mounting slot through a second axis, an elastic push arm is arranged on the side of the wrench facing the fixing belt, the locking card plate is clamped in the tooth groove of the fixing belt under the action of the second torsion spring, the wrench is arranged parallel to the locking card plate above the locking card plate, and the rear wheel anti-theft cover is arranged at a position corresponding to the locking card plate; a rear wheel base lock hole is opened on the rear side wall of the mounting slot, and a rear wheel base locking groove matching the rear wheel base lock hole is arranged on the rear wheel base lock core.

[0016] Preferably, the rear wheel fixing device of the vehicle-mounted bicycle rack further comprises an n-shaped fixing frame, which is arranged on the top surface of the rear wheel base, and the rear wheel base is mounted on the profile in an adjustable and lockable position via the n-shaped fixing frame.

[0017] Preferably, the rear wheel fixing device of the vehicle-mounted bicycle rack also includes a T-shaped bolt, the position of which is adjustably arranged in the groove of the profile, the upper end of the T-shaped bolt passes through one end of the N-shaped fixing frame and is installed with a locking nut; the bottom of the rear wheel base is provided with a sliding block that cooperates with the groove.

[0018] Preferably, a U-shaped limiting portion which can be inserted into the mounting groove is provided on one side of the N-shaped fixing frame, the fixing belt is arranged in the U-shaped limiting portion, and the U-shaped limiting portion is located on a side of the fixing belt away from the locking assembly.

[0019] The present invention can adjust the position of the front wheel through the horizontal position adjustment rod to meet the needs of different bicycle lengths, and reduce the volume during packaging and transportation, which is convenient for transportation and storage, and also reduces the transportation and packaging costs. In addition, the present invention can not only play the role of bicycle theft prevention through the rear wheel anti-theft cover with the rear wheel base lock cylinder, but also prevent others from loosening the fixing belt to a certain extent without permission, resulting in unstable fixation of the bicycle, causing safety hazards during vehicle driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the present invention is schematically shown. Figure 1 ;

[0021] Figure 2 The overall structure of the present invention is schematically shown. Figure 2 ;

[0022] Figure 3 Schematic showing the disassembly of the front wheel fixing device Figure 1 ;

[0023] Figure 4 Schematic showing the disassembly of the front wheel fixing device Figure 2 ;

[0024] Figure 5 schematically shows a perspective view of a front wheel base assembly;

[0025] Figure 6 Schematic showing the exploded view of the front wheel base assembly Figure 1 ;

[0026] Figure 7 Schematic showing the exploded view of the front wheel base assembly Figure 2 ;

[0027] Figure 8 Schematically shows the three-dimensional view of the rear wheel fixing device Figure 1 ;

[0028] Fig. 9 Schematically shows the three-dimensional view of the rear wheel fixing device Figure 2 ;

[0029] Fig.10 An exploded view of the rear wheel securing device is schematically shown;

[0030] Fig.11 A perspective view of a rear wheel base is schematically shown;

[0031] Fig.12 An exploded view of the rear wheel base is schematically shown;

[0032] Fig.13Schematically shows the installation structure of the rear wheel base Figure 1 ;

[0033] Fig.14 Schematically shows the installation structure of the rear wheel base Figure 2 ;

[0034] Fig.15 Schematically shows the installation structure of the rear wheel base Figure 3 .

[0035] Reference numerals in the figure: 1, front wheel base assembly; 2, horizontal position adjustment rod; 3, front wheel fixing frame; 4, front wheel base; 5, pressure plate; 6, first guide groove; 7, second guide groove; 8, movable tailstock; 9, tailstock mounting hole; 10, profile; 11, positioning protrusion; 12, front wheel base fixing screw; 13, groove; 14, guide part; 15, front wheel base cover; 16, front wheel base lock cylinder; 17, locking pad; 18, front wheel base lock hole; 19, U-shaped frame; 20, front wheel fixing part; 21, rack; 22, U-shaped fixing piece; 23, clamping block; 24, first torsion spring; 25, clamping hole; 26, fixing screw; 27 , front wheel base locking groove; 28, protruding matching part; 29, U-shaped mounting fixing plate; 30, rear wheel base; 31, fixing belt; 32, rear wheel anti-theft cover; 33, locking assembly; 34, mounting groove; 35, rear wheel base lock cylinder; 36, pin shaft; 37, locking card plate; 38, wrench; 39, second torsion spring; 40, first axis; 41, second axis; 42, elastic push arm; 43, tooth groove; 44, rear wheel base locking hole; 45, rear wheel base locking groove; 46, N-shaped fixing frame; 48, T-shaped bolt; 49, locking nut; 50, slider; 51, U-shaped limiting part; 52, front wheel fixing device; 53, rear wheel fixing device. DETAILED DESCRIPTION

[0036] The following is a detailed description of embodiments of the present invention, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0037] As one aspect of the present invention, a vehicle-mounted bicycle rack is provided, which can be installed on a roof bracket or a rear bracket for use, and comprises: a front wheel fixing device 52, a rear wheel fixing device 53, a profile 10 and a U-shaped mounting fixing plate 29; the front wheel fixing device 52 and the rear wheel fixing device 53 are installed above the profile 10, and the U-shaped mounting fixing plate 29 is arranged below the profile 10. The U-shaped mounting fixing plate 29 is used to connect with the mounting components of the roof. Since the U-shaped mounting fixing plate 29 is adopted, the length of the screws connected with the U-shaped mounting fixing plate 29 does not need to extend out of the bottom of the U-shaped mounting fixing plate 29, but only needs to be connected with the horizontal connecting ears on both sides of the U-shaped mounting fixing plate 29. The part extending out of the horizontal connecting ears can be stored in the space below the horizontal connecting ears, and will not protrude from the bottom surface of the U-shaped mounting fixing plate 29, so it will not scratch or damage the top of the vehicle, and will not interfere with the opening and closing operation of the vehicle sunroof.

[0038] The front wheel fixing device 52 includes a front wheel base assembly 1, a horizontal position adjustment rod 2 and a front wheel fixing frame 3. The front wheel fixing frame 3 is mounted on the horizontal position adjustment rod 2. The horizontal position adjustment rod 2 passes through the front wheel base assembly 1 in the horizontal direction. The horizontal position adjustment rod 2 is connected to the front wheel base assembly 1 in an adjustably horizontal position. The front wheel base assembly 1 can be connected to the profile 10 by fasteners such as screws.

[0039] When in use, the front wheel fixing device of the vehicle-mounted bicycle rack of the present invention is installed on the luggage rack on the top of the vehicle through the U-shaped mounting fixing plate 29 provided under the profile 10. When the lengths of the bicycles to be installed are different, the horizontal position adjustment rod 2 can be moved and adjusted along the horizontal direction of the front wheel base assembly 1, so that the front wheel fixing frame 3 on the horizontal position adjustment rod 2 is adjusted to the required position to adapt to the length or size of the bicycle. During packaging and transportation, the horizontal position adjustment rod 2 can be retracted to the shortest state, thereby reducing the volume during packaging and transportation and reducing costs.

[0040] In the above technical solution, the present invention can adjust the position of the front wheel fixing frame 3 through the horizontal position adjustment rod 2 to meet the requirements of different bicycle lengths, and reduce the volume during packaging and transportation, which is convenient for transportation and storage, and also reduces transportation and packaging costs.

[0041] The rear wheel fixing device 53 includes a rear wheel base 30, a fixing belt 31, a rear wheel anti-theft cover 32 and a locking assembly 33, one end of the fixing belt 31 is connected to the first side of the rear wheel base 30, one end of the rear wheel anti-theft cover 32 is arranged in the mounting groove 34 on the second side of the rear wheel base 30, the locking assembly 33 is arranged on the second side of the rear wheel base 30, the locking assembly 33 includes a tightening state for tightening the fixing belt 31 and a loosening state for loosening the fixing belt 31, the rear wheel anti-theft cover 32 is locked with the rear wheel base 30 by a rear wheel base lock cylinder 35; when the rear wheel anti-theft cover 32 is locked with the rear wheel base 30, it is located in a position that prevents the locking assembly 33 from switching to the loosening state.

[0042] When in use, the rear wheel base 30 of the present invention is installed to the luggage rack on the top of the vehicle through the U-shaped mounting plate below the profile 20. When fixing the bicycle, the rear wheel of the bicycle is placed on the rear wheel base 30, and then the fixing belt 31 is passed through the gap between the spokes of the rear wheel, thereby guiding it from one side of the rear wheel to the other side. Then, the fixing belt 31 is passed downward through the locking assembly 33, and the length of the fixing belt 31 can be adjusted to the required length under the action of the locking assembly 33. After the fixing belt 31 is tightened, the rear wheel can be fixed. Among them, the locking assembly 33 is a conventional prior art in the art, and can be implemented by any structure in the prior art that can fix and lock the fixing belt, not limited to the structure shown in the figure of the present invention, and will not be repeated here.

[0043] After the fixing belt 31 is fixed, the rear wheel anti-theft cover 32 is installed and locked on the rear wheel base 30 through the rear wheel base lock cylinder 35, so that the rear wheel anti-theft cover 32 covers a part of the locking assembly 33, so that the locking assembly 33 cannot be switched to a state where the fixing belt 31 can be loosened. When the fixing belt 31 needs to be loosened, the rear wheel base lock cylinder 35 is opened with a key, so as to release the connection between the rear wheel anti-theft cover 32 and the rear wheel base 30, and remove the rear wheel anti-theft cover 32 from the rear wheel base 30. Therefore, if there is no key or the lock cylinder is not opened with a key, and the rear wheel anti-theft cover 32 is removed, it will be impossible to operate the locking assembly 33 to loosen the fixing belt 31, which can not only play the role of bicycle anti-theft, but also prevent others from loosening the fixing belt 31 to a certain extent without permission, which will cause the bicycle to be unstable and cause safety hazards during vehicle driving.

[0044] Due to the adoption of the above technical solution, the present invention can not only play a role in preventing the bicycle from being stolen through the rear wheel anti-theft cover 32 with the rear wheel base lock cylinder 35, but also prevent others from loosening the fixing belt 31 to a certain extent without permission, which will cause the bicycle to be unstable and cause safety hazards during vehicle driving.

[0045] Preferably, the front wheel base assembly 1 includes a front wheel base 4 and a pressure plate 5, the upper surface of the front wheel base 4 is formed with a first guide groove 6, the pressure plate 5 is formed with a second guide groove 7 corresponding to the first guide groove 6, the pressure plate 5 is installed on the upper surface of the front wheel base 4, and the horizontal position adjustment rod 2 is located in the space surrounded by the first guide groove 6 and the second guide groove 7. The setting of the pressure plate 5 can limit the horizontal position adjustment rod 2 in the up and down directions, thereby improving the stability of the bicycle in the up and down directions during the vehicle driving process.

[0046] Preferably, the front wheel base assembly 1 further comprises a mobile tailstock 8, and one end of the horizontal position adjustment rod 2 is mounted in the tailstock mounting hole 9 of the mobile tailstock 8. Preferably, a positioning protrusion 11 for fixing the horizontal position adjustment rod 2 is provided on the top of the mobile tailstock 8, the front wheel base 4 is connected to the profile 10 through a front wheel base fixing screw 12, and a guide portion 14 matching the groove 13 on the profile 10 is provided on the bottom of the mobile tailstock 8. In this embodiment, the guide portion 14 in the mobile tailstock 8 is arranged in the groove 13 and guides the movement of the mobile tailstock 8. The mobile tailstock 8 is connected to the horizontal position adjustment rod 2. When the horizontal position adjustment rod 2 adjusts its position, the mobile tailstock 8 also moves therewith. Since the mobile tailstock 8 is connected to the end of the horizontal position adjustment rod 2, the position of the horizontal position adjustment rod 2 when sliding can be limited, and two-point support can be formed for it, thereby improving the stability of the horizontal position adjustment rod 2.

[0047] Preferably, the front wheel base assembly 1 further comprises a front wheel base cover 15, on which a front wheel base lock cylinder 16 is arranged, and the front wheel base cover 15 is lockably and detachably connected to the front wheel base 4 through the front wheel base lock cylinder 16, and a packaging space for hiding the fasteners on the front wheel base 4 is formed between the front wheel base cover 15 and the front wheel base 4. The fasteners include various fasteners arranged on the front wheel base 4, through which the front wheel base 4 can be installed or removed from the profile 10, and the other two fasteners are used to connect the U-shaped mounting fixing plate to install or remove the vehicle-mounted bicycle rack from the vehicle. When the front wheel base lock cylinder 16 is locked, the front wheel base cover 15 is connected to the front wheel base 4, and the front wheel base cover 15 can be removed from the front wheel base 4 only when the front wheel base lock cylinder 16 is opened.

[0048] Therefore, when these fasteners are hidden and enclosed in the packaging space by the front wheel base cover 15, if the front wheel base lock cylinder 16 is not opened by a key to remove the front wheel base cover 15 from the front wheel base 4, these fasteners cannot be operated from the outside of the front wheel base assembly 1, and the front wheel base 4 cannot be removed from the profile 10. In this way, the front wheel base cover 15 and the front wheel base lock cylinder 16 can prevent others from disassembling and loosening to cause safety accidents or prevent the bicycle rack from being stolen, thereby achieving the purpose of anti-theft.

[0049] Preferably, the front wheel base assembly 1 further comprises a locking pad 17, which is arranged on the top of the front wheel base 4, and is provided with a front wheel base lock hole 18, and the front wheel base lock core 16 is provided with a front wheel base locking groove 27 that matches the front wheel base lock hole 18. The locking pad 17 is installed on the top of the front wheel base 4 by screws, and during installation, the lower end of the front wheel base lock core 16 is inserted into the front wheel base lock hole 18, and when the front wheel base lock core 16 is rotated to a locked state by a key, the edge of the front wheel base lock hole 18 is stuck in the front wheel base locking groove 27 to achieve locking. When unlocking is required, the front wheel base lock core 16 is rotated to an unlocking state by a key, so that the front wheel base locking groove 27 is in a state of leaving the edge of the front wheel base lock hole 18 to achieve unlocking.

[0050] Preferably, the surface of the locking pad 17 is protrudingly formed with a protruding mating portion 28 that is mating with the front wheel base locking groove 27. When in the locking position, the protruding mating portion 28 is pressed and mated with the front wheel base locking groove 27 to generate a damping limit.

[0051] Preferably, the front wheel fixing frame 3 includes a U-shaped frame 19 and a front wheel fixing portion 20, the lower end of the U-shaped frame 19 is rotatably connected to the horizontal position adjustment rod 2 and the rotation angle range can be limited, and the front wheel fixing portion 20 is connected to the U-shaped frame 19 in an adjustable and lockable position. When the bicycle needs to be installed, the front wheel fixing frame 3 is rotated from the horizontal position to the front wheel fixing portion 20. Figure 1 In the state shown, the front wheel of the bicycle is placed in the U-shaped groove of the U-shaped frame 19. Therefore, the two parallel rods of the U-shaped frame 19 can be used to form left and right limit for the front wheel, thereby improving the left and right stability of the front wheel of the bicycle during the vehicle driving process and avoiding large left and right shaking. Then, the front wheel fixing part 20 is adjusted downward and clamped above the front wheel to fix the front wheel, thereby improving the stability of the front wheel in the up and down direction.

[0052] Preferably, the front wheel fixing part 20 comprises a rack 21, a U-shaped fixing part 22, a clamping block 23 and a first torsion spring 24, wherein the rack 21 is arranged along the extension direction of the U-shaped frame 19 and connected to the U-shaped frame 19, the U-shaped fixing part 22 is slidably connected to the U-shaped frame 19, the clamping block 23 is rotatably connected to the U-shaped fixing part 22 through the first torsion spring 24, and the clamping block 23 is clamped with the rack 21 under the action of the first torsion spring 24. In this embodiment, if the height of the U-shaped fixing part 22 needs to be adjusted to adapt to the fixing of front wheels of different sizes, the clamping block 23 is pressed to disengage the engagement between the clamping block 23 and the rack 21, so that the U-shaped fixing part 22 can be moved up and down. When it moves to the desired position, the pressing of the clamping block 23 is released, and then, under the action of the first torsion spring 24, the clamping teeth on the clamping block 23 move toward the rack 21 and engage with the clamping block 23 to achieve the position locking of the U-shaped fixing part 22.

[0053] Preferably, a clamping hole 25 is provided on the U-shaped frame 19, a clamping block 23 cooperating with the clamping hole 25 is protrudingly formed on the rack 21, and fixing screws 26 connected to the U-shaped frame 19 are also provided at both ends of the rack 21. The middle part of the rack 21 can be fixed by the clamping hole 25 and the clamping block 23, so that the rack 21 fits the U-shaped frame 19 as a whole, and the rack 21 can be further fixed to the U-shaped frame 19 by the fixing screws 26.

[0054] Preferably, one end of the rear wheel anti-theft cover 32 is rotatably connected to the rear wheel base 30 via a pin shaft 36, and the rear wheel base lock cylinder 35 is arranged at the other end of the rear wheel anti-theft cover 32. After opening the rear wheel base lock cylinder, the rear wheel anti-theft cover 32 can be rotated outward so that it no longer presses the locking assembly 33, exposing the installation groove 34 and the locking assembly 4 therein, so that the locking assembly 4 can be normally operated and switched to a released state.

[0055] Preferably, the locking assembly 33 includes a locking card plate 37, a wrench 38 and a second torsion spring 39. The locking card plate 37 is rotatably arranged in the mounting groove 34 through a first axis 40. The wrench 38 is rotatably arranged in the mounting groove 34 through a second axis 41. An elastic push arm 42 is arranged on the side of the wrench 38 facing the fixing belt 31. The locking card plate 37 is inserted into the tooth groove 43 of the fixing belt 31 under the action of the second torsion spring 39. The wrench 38 is arranged parallel to the top of the locking card plate 37. The rear wheel anti-theft cover 32 is arranged at a position corresponding to the locking card plate 37.

[0056] When the fixing belt 31 needs to be tightened, the wrench 9 is used to move the wrench 9, and the wrench 38 is first rotated outward and outward around the second axis 41. During this process, the elastic push arm 42 also rotates accordingly, so that the lower end of the elastic push arm 42 leaves the tooth groove 43. At the same time, under the action of the second torsion spring 39, the lower end of the wrench 38 is stuck in the tooth groove 43, so as to lock the position of the fixing belt 31 so that it will not move upward. Then, the wrench 38 is moved and rotated, and during this process, the lower end of the elastic push arm 42 is stuck in the tooth groove 43. When the wrench 38 is rotated upward to a vertical position, the elastic push arm 42 also moves downward a certain distance, thereby driving the fixing belt 31 to move downward a certain distance. By continuously cyclically operating in this way, the fixing belt 31 can be tightened.

[0057] When it is necessary to loosen the fixing belt 31, the wrench 9 is moved from the upward vertical state to a nearly downward vertical state. At this time, the wrench 9 applies an external force to the portion of the locking plate 37 located above the first shaft 1, thereby overcoming the force provided by the second torsion spring 39 and causing the lower end tooth of the locking plate 37 to leave the tooth groove 43. Then, the fixing belt 31 can be pulled out upward, thereby achieving the purpose of loosening the fixing belt 31.

[0058] Preferably, a rear wheel base lock hole 44 is provided on the rear side wall of the installation groove 34, and a rear wheel base locking groove 45 matching with the rear wheel base lock hole 44 is provided on the rear wheel base lock core 35. One end of the rear wheel base lock core 35 is arranged corresponding to the rear wheel base locking groove 45 and can be inserted into the rear wheel base locking groove 45. When the wheel base lock core 6 is operated by a key, the wheel base lock core 6 rotates, so that the rear wheel base locking groove 45 rotates to a state where it is stuck to the side wall of the rear wheel base lock hole 44, and locking is achieved. Conversely, when the rear wheel base locking groove 45 rotates to a state where it is not stuck to the side wall of the rear wheel base lock hole 44, unlocking is achieved, and the installation cover 3 can be rotated outward to open.

[0059] Preferably, the rear wheel fixing device for the vehicle-mounted bicycle rack further comprises an n-shaped fixing frame 46, which is disposed on the top surface of the rear wheel base 30, and the rear wheel base 30 is mounted on the profile 10 in an adjustable and lockable manner through the n-shaped fixing frame 46. Preferably, the rear wheel fixing device for the vehicle-mounted bicycle rack further comprises a T-shaped bolt 48, which is adjustable in position in the groove 13 of the profile 10, and the upper end of the T-shaped bolt 48 passes through one end of the n-shaped fixing frame 46 and is installed with a locking nut 49.

[0060] In this embodiment, the rear wheel base 30 is set in the notch below the n-shaped fixing frame 46, and the T-shaped bolt 48 is movably set in the groove 13 of the profile 20, and can be manually moved to a desired position therein, so as to meet the needs of different lengths of front and rear wheel tracks of bicycles and move to the position corresponding to the rear wheel. During installation, the upper end of the T-shaped bolt 48 passes through the mounting holes on the ears at both ends of the n-shaped fixing frame 46, and then the locking nut 49 is installed thereon. After tightening the locking nut 49, the position of the n-shaped fixing frame 46 can be locked, thereby locking the rear wheel base 30 to the desired position.

[0061] Preferably, a slider 50 is provided at the bottom of the rear wheel base 30 to cooperate with the groove 13. During installation, the rear wheel base 30 can be movably arranged on the profile 20 through the slider 50, and the slider 50 can make it more convenient to adjust the position of the rear wheel base 30.

[0062] Preferably, a U-shaped limiting portion 51 which can be inserted into the mounting groove 34 is provided on one side of the n-shaped fixing frame 46, and the fixing belt 31 is arranged in the U-shaped limiting portion 51, and the U-shaped limiting portion 51 is located on the side of the fixing belt 31 away from the locking assembly 33.

[0063] The present invention has the following beneficial effects:

[0064] (1) The present invention is a finished product package that can be directly installed and is simple and convenient to use, while the products on the market are packaged separately for parts and components, which requires customers to spend time organizing before use.

[0065] (2) The small packaging volume saves shipping costs and packaging. The adjustment rod is used to shorten the product length and the front wheel fixing frame is rotated to fit the mobile tailstock to achieve the thinnest thickness in the horizontal position. The pressure plate is used to fix it, which is fastened and stable and greatly reduces the width. The flipping method used on the market requires the product to be widened and the force distance to increase on both sides to ensure stability.

[0066] (3) It has a wide range of uses and can be used on bicycles of all sizes. The adjustment rod is used to adjust the size of the wheel, which is a method not available on the market. The fastening device on the front wheel fixing bracket is also moved and locked on the U-shaped tube according to the size of the wheel.

[0067] (4) Simple to use, safe and anti-theft dual design.

[0068] (5) The U-shaped mounting plate design shortens the bolt length. The mounting plates on the market are basically horizontal or slightly arc-shaped, which requires the fixing bolts to be lengthened, resulting in collision with the open car sunroof.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle-mounted bicycle rack, characterized in that: include: A front wheel fixing device (52), a rear wheel fixing device (53), a profile (10) and a U-shaped mounting fixing plate (29); the front wheel fixing device (52) and the rear wheel fixing device (53) are installed above the profile (10), and the U-shaped mounting fixing plate (29) is arranged below the profile (10); The front wheel fixing device (52) comprises a front wheel base assembly (1), a horizontal position adjustment rod (2) and a front wheel fixing frame (3), wherein the front wheel fixing frame (3) is mounted on the horizontal position adjustment rod (2), the horizontal position adjustment rod (2) passes through the front wheel base assembly (1) in a horizontal direction, and the horizontal position adjustment rod (2) is connected to the front wheel base assembly (1) in an adjustably horizontal position; The rear wheel fixing device (53) comprises a rear wheel base (30), a fixing belt (31), a rear wheel anti-theft cover (32) and a locking assembly (33); one end of the fixing belt (31) is connected to a first side of the rear wheel base (30); one end of the rear wheel anti-theft cover (32) is arranged in a mounting groove (34) on a second side of the rear wheel base (30); the locking assembly (33) is arranged on the second side of the rear wheel base (30); the locking assembly (33) comprises a tightening state for tightening the fixing belt (31) and a loosening state for loosening the fixing belt (31); the rear wheel anti-theft cover (32) is locked with the rear wheel base (30) through a rear wheel base lock cylinder (35); when the rear wheel anti-theft cover (32) is locked with the rear wheel base (30), it is located at a position that prevents the locking assembly (33) from switching to the loosening state.

2. The vehicle-mounted bicycle rack according to claim 1, characterized in that: The front wheel base assembly (1) comprises a front wheel base (4) and a pressure plate (5), the upper surface of the front wheel base (4) is formed with a first guide groove (6), the pressure plate (5) is formed with a second guide groove (7) arranged corresponding to the first guide groove (6), the pressure plate (5) is mounted on the upper surface of the front wheel base (4), and the horizontal position adjustment rod (2) is located in a space enclosed by the first guide groove (6) and the second guide groove (7).

3. The vehicle-mounted bicycle rack according to claim 2, characterized in that: The front wheel base assembly (1) also includes a movable tailstock (8), one end of the horizontal position adjustment rod (2) is mounted in a tailstock mounting hole (9) of the movable tailstock (8); a positioning protrusion (11) for fixing the horizontal position adjustment rod (2) is arranged on the top of the movable tailstock (8); the front wheel base (4) is connected to the profile (10) via a front wheel base fixing screw (12); and a guide portion (14) matching a groove (13) on the profile (10) is arranged on the bottom of the movable tailstock (8).

4. The vehicle-mounted bicycle rack according to claim 2, characterized in that: The front wheel base assembly (1) further comprises a front wheel base cover (15) and a locking pad (17); the front wheel base cover (15) is provided with a front wheel base lock cylinder (16); the front wheel base cover (15) is lockably and detachably connected to the front wheel base (4) via the front wheel base lock cylinder (16); a packaging space for hiding fasteners on the front wheel base (4) is formed between the front wheel base cover (15) and the front wheel base (4); the locking pad (17) is arranged on the top of the front wheel base (4); the locking pad (17) is provided with a front wheel base lock hole (18); the front wheel base lock cylinder (16) is provided with a front wheel base locking groove (27) matched with the front wheel base lock hole (18).

5. The vehicle-mounted bicycle rack according to claim 1, characterized in that: The front wheel fixing frame (3) comprises a U-shaped frame (19) and a front wheel fixing portion (20); the lower end of the U-shaped frame (19) is rotatably connected to the horizontal position adjustment rod (2) and the rotation angle range can be limited; the front wheel fixing portion (20) is connected to the U-shaped frame (19) in an adjustable and lockable position; the front wheel fixing portion (20) comprises a rack (21), a U-shaped fixing member (22), a clamping block (23) and a first torsion spring (24); the rack (21) is arranged along the extension direction of the U-shaped frame (19) and is connected to the U-shaped frame (19); the U-shaped fixing member (22) is slidably connected to the U-shaped frame (19); the clamping block (23) is rotatably connected to the U-shaped fixing member (22) via the first torsion spring (24); and the clamping block (23) is clamped with the rack (21) under the action of the first torsion spring (24).

6. The vehicle-mounted bicycle rack according to claim 1, characterized in that: One end of the rear wheel anti-theft cover (32) is rotatably connected to the rear wheel base (30) via a pin shaft (36), and the rear wheel base lock core (35) is arranged at the other end of the rear wheel anti-theft cover (32); the locking assembly (33) comprises a locking card plate (37), a wrench (38) and a second torsion spring (39), the locking card plate (37) is rotatably arranged in the installation groove (34) via a first shaft (40), the wrench (38) is rotatably arranged in the installation groove (34) via a second shaft (41), and the wrench (38) is oriented toward the fixed An elastic push arm (42) is provided on one side of the belt (31); the locking card plate (37) is inserted into the tooth groove (43) of the fixing belt (31) under the action of the second torsion spring (39); the wrench (38) is arranged in parallel above the locking card plate (37); the rear wheel anti-theft cover (32) is arranged at a position corresponding to the locking card plate (37); a rear wheel base locking hole (44) is provided on the rear side wall of the mounting groove (34); and a rear wheel base locking groove (45) matching with the rear wheel base locking hole (44) is provided on the rear wheel base lock core (35).

7. The vehicle-mounted bicycle rack according to claim 6, characterized in that: The vehicle-mounted bicycle rack rear wheel fixing device also includes an N-shaped fixing frame (46), which is arranged on the top surface of the rear wheel base (30), and the rear wheel base (30) is installed on the profile (10) in a position-adjustable and position-lockable manner through the N-shaped fixing frame (46).

8. The vehicle-mounted bicycle rack according to claim 7, characterized in that: The rear wheel fixing device of the vehicle-mounted bicycle rack also includes a T-shaped bolt (48), the position of which can be adjusted in the groove (13) of the profile (10), the upper end of the T-shaped bolt (48) passes through one end of the N-shaped fixing frame (46) and is installed with a locking nut (49); the bottom of the rear wheel base (30) is provided with a sliding block (50) that cooperates with the groove (13).

9. The vehicle-mounted bicycle rack according to claim 7, characterized in that: A U-shaped limiting portion (51) which can be inserted into the installation groove (34) is provided on one side of the N-shaped fixing frame (46), and the fixing belt (31) is arranged in the U-shaped limiting portion (51), and the U-shaped limiting portion (51) is located on a side of the fixing belt (31) away from the locking assembly (33).

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