Vehicle-mounted adjustable bicycle bracket

Abstract

The utility model relates to the field of bicycle brackets, and particularly discloses a vehicle-mounted adjustable bicycle bracket which comprises an external connecting piece and a bracket mechanism. The bracket mechanism comprises a supporting frame, a bracket chassis, a limiting assembly and a fixing assembly. The limiting assembly comprises a limiting supporting rod, a first limiting piece, a limiting base, a second limiting piece, a limiting plate, a guiding sliding block and a connecting rod. The fixing assembly comprises a fixing base, a fixing piece and a fixing block. Limiting plates, guide sliding blocks and connecting rods can adjust the distance between the two sets of limiting bases, supporting blocks and reinforcing rods can adjust the position of a limiting frame, and limiting supporting rods, first limiting pieces, the limiting bases and second limiting pieces can fix bicycles of different sizes and types. The bracket chassis can be turned over through the fixing base, the fixing piece, the fixing block and the rotating piece, people can use a trunk conveniently, the using effect of the bicycle bracket is improved, and the using range of the bicycle bracket is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle brackets, in particular to an adjustable bicycle bracket for vehicle mounting. Background Art

[0002] Bicycle is a common means of transportation. It is driven by the pedal force of the rider and is an environmentally friendly and healthy way of travel. With the progress and development of society, environmental awareness and fitness concepts are becoming more and more popular, and green travel is generally recognized by the general public. Bicycle is a common sports equipment for outdoor travel and leisure and entertainment. It serves as a means of transportation for green travel and is accepted and recognized by most people. In order to transport bicycles to suitable venues, some bicycle enthusiasts will ride there, but for some venues that are too far away, most bicycle enthusiasts will choose to drive to the venue and then ride the bicycle. However, when driving for leisure travel or sports, people often carry more luggage, and the interior space of the car itself is small and cannot accommodate too many accompanying items, so installing a car-mounted bicycle rack can help solve this problem.

[0003] The principle of existing adjustable bicycle racks for vehicles is generally to select a suitable bicycle rack according to the type and size of the bicycle, and install the bicycle rack to the rear of the car. Then, according to the design of the rack, the bicycle is placed on the rack and the included fixing devices (such as clips, screws, etc.) are used to firmly fix the bicycle to the rack to ensure that the bicycle does not slide or loosen during driving, thereby transporting the bicycle to the destination.

[0004] When using an adjustable bicycle rack for a vehicle, a suitable bicycle rack is usually selected according to the type and size of the bicycle. The bicycle rack can usually only hold multiple groups of bicycles of the same size and type. If the user uses bicycles of other sizes and types, a different bicycle rack needs to be replaced, which increases the user's usage cost. Moreover, when the user and a friend use bicycles of two different sizes and types, the bicycle rack cannot hold two bicycles at the same time, which reduces the scope of use of the bicycle rack. Moreover, when the bicycle rack is installed on a car, it will block the car trunk, and the user cannot open the trunk to take items, which reduces the use effect of the bicycle rack and cannot meet people's needs. Utility Model Content

[0005] The purpose of this utility model is to provide an adjustable bicycle bracket for vehicle use, which solves the following technical problems:

[0006] How to make the bicycle rack suitable for bicycles of different sizes and types and convenient for users to use the car trunk.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] The bicycle carrier is a vehicle-mounted adjustable bicycle carrier, comprising an external member detachably fixed to the rear end of the vehicle and a carrier mechanism detachably fixed to the external member; the carrier mechanism comprises a support frame detachably fixed to the external member, a carrier chassis rotatably mounted on the support frame, a limiting assembly provided at the upper end of the carrier chassis and limiting the position of the bicycle, and a fixing assembly fixedly connecting the carrier chassis to the support frame, the carrier chassis fixing a plurality of groups of bicycles by the limiting assembly, the fixing assembly being capable of fixing the carrier chassis to the support frame, thereby fixing the bicycles to the rear end of the vehicle; wherein the limiting assembly comprises a plurality of groups of limiting support rods vertically mounted on the carrier chassis and a first limiting member movably mounted on the limiting support rod and capable of limiting the position of the bicycle frame reinforcement beam, the first limiting member being capable of stably limiting the bicycle frame; the limiting assembly also The bicycle is mounted on a support frame and has a plurality of limit seats movably arranged on both sides of the limit support rod and a second limit member detachably mounted on the limit seat to limit the bicycle wheel. The limit seat and the second limit member can enable the bicycle to be stably parked on the bracket chassis; the limit assembly also includes a limit plate fixedly connected to the limit seat, several groups of guide sliders movably arranged on the bracket chassis and a connecting rod connecting the guide slider and the limit plate, the guide slider is provided with a connecting hole connected to the connecting rod; the bracket chassis is provided with a sliding groove slidably connected to the guide slider; the fixing assembly includes a fixing seat symmetrically arranged on the lower end surface of the bracket chassis, a fixing member movably arranged on the fixing seat and a fixing block fixedly arranged at the lower end of the support frame, the fixing member is connected to the fixing block and can fix the bracket chassis; the fixing block is provided with a fixing hole detachably connected to the fixing member.

[0009] As a further solution of the present invention: the support frame includes a first reinforcing rod detachably fixed to an external part, a second reinforcing rod vertically connected to the first reinforcing rod and several groups of support rods vertically mounted on the second reinforcing rod, and the lower end of the bracket chassis is symmetrically provided with several groups of rotating parts rotatably connected to one end of the support rod. The bracket chassis can be flipped more than 90 degrees on the support frame through the rotating parts, thereby facilitating people to open the trunk of the car and improving the practicality of the bicycle bracket. The first reinforcing rod, the second reinforcing rod and the support rod are all configured as square rods, and the first reinforcing rod, the second reinforcing rod and the support rod can cooperate to support the bracket chassis and the bicycle.

[0010] As a further solution of the present invention: the first limiting member includes a support block sleeved on the limiting support rod and a limiting frame threadedly fixed to the support block, a reinforcing rod threadedly connected to the support block is vertically arranged on the limiting frame, the support block can adjust the height on the limiting support rod, the limiting frame is provided with a limiting block for fixing the bicycle frame reinforcement beam, the limiting frame and the limiting block cooperate to fix the bicycle frame reinforcement beam, an adjusting rod for controlling the movement of the limiting block is threadedly installed on the limiting frame, the adjusting rod can limit the position of the limit block, so that the limit block and the limiting frame can cooperate to fix the bicycle frame reinforcement beam.

[0011] As a further solution of the present invention: the rear end face of the support block is installed with a limiting screw connected to the limiting support rod, and the limiting support rod is provided with several groups of limiting holes connected to the limiting screw at equal intervals from top to bottom. The limiting support rod is a round rod structure, and the support block adjusts the height position of the limiting frame through the limiting screw.

[0012] As a further solution of the present invention: the vertical cross-sections of the limit frame and the limit seat are both U-shaped structures, and the inner bottom surface of the limit seat is equipped with an elastic support block for supporting the bicycle wheel, and the elastic support block is provided with an anti-slip groove, and the anti-slip groove can increase the friction between the bicycle wheel and the elastic support block.

[0013] As a further solution of the present invention: the second limiting member includes a limiting locking block fixedly arranged on the inner side of the limiting seat and a limiting locking rod movably installed on the limiting seat, the limiting locking rod is arranged above the elastic support block, and the limiting locking block is provided with a locking hole corresponding to the limiting locking rod, and one end of the limiting locking rod can pass through the bicycle wheel and cooperate with the limiting locking block to fix the bicycle wheel.

[0014] As a further solution of the present invention: the fixing part includes a fixing rod movably arranged on the fixing seat, a fixing block detachably mounted on the fixing rod and a spring sleeved on the fixing rod, one end of the spring is connected to the fixing block, and one end of the fixing rod can be inserted into the fixing hole, so that the bracket chassis can be fixed to the support frame.

[0015] As a further solution of the present invention: a weight-reducing groove is provided on the bracket chassis, and a mounting plate for fixing the license plate is fixed to the rear end face of the bracket chassis. The car license plate is fixed to the mounting plate to prevent the bracket chassis and the bicycle from blocking the car license plate.

[0016] Beneficial effects of the utility model:

[0017] (1) The utility model provides a bracket mechanism, a support frame and a bracket chassis that can support a bicycle. The limit plate, the guide slider and the connecting rod cooperate to adjust the distance between the two sets of limit seats. The support block and the reinforcing rod can adjust the position of the limit frame, so that the limit support rod, the first limit member, the limit seat and the second limit member can fix bicycles of different sizes and types. The fixed seat, the fixed member, the fixed block and the rotating member cooperate to flip the bracket chassis, which is convenient for people to adjust the distance between the bicycle and the trunk, thereby improving the use effect and scope of the bicycle bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

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

[0020] Figure 2 This is a partial structural diagram of the utility model bicycle installed on the bracket mechanism;

[0021] Figure 3 This is a partial structural diagram of the limit plate and guide slider of the utility model;

[0022] Figure 4 It is a partial structural diagram of the fixing assembly of the utility model;

[0023] Figure 5 It is a partial structural diagram of the limit frame and limit block of the utility model.

[0024] Figure markings: 1. external component; 2. support frame; 3. bracket chassis; 4. limiting support rod; 5. first limiting member; 6. limiting seat; 7. second limiting member; 8. limiting plate; 9. guide slider; 10. connecting rod; 11. fixing seat; 12. fixing member; 13. fixing block; 14. first reinforcing rod; 15. second reinforcing rod; 16. support rod; 17. rotating member; 18. support block; 19. limiting frame; 20. limiting block; 21. adjusting rod; 22. limiting screw; 23. elastic support block; 24. anti-slip groove; 25. limiting lock block; 26. limiting lock rod; 27. fixing rod; 28. fixed block; 29. ​​spring; 30. mounting plate; 31. reinforcing rod. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Please see attached picture Figure 1-5 As shown, an adjustable bicycle bracket for a vehicle in an embodiment of the present invention comprises an external member 1 detachably fixed to the rear end of a car and a bracket mechanism detachably fixed to the external member 1; the bracket mechanism comprises a support frame 2 detachably fixed to the external member 1, a bracket chassis 3 rotatably mounted on the support frame 2, a limiting assembly provided at the upper end of the bracket chassis 3 and limiting the position of the bicycle, and a fixing assembly fixedly connected the bracket chassis 3 to the support frame 2, the support frame 2 is provided with a fastening bolt fixed to the external member 1, the bracket chassis 3 fixes several groups of bicycles through the limiting assembly, and the fixing assembly can fix the bracket chassis 3 to the support frame 2, thereby fixing the bicycle to the rear end of the car; wherein the limiting assembly comprises several groups of limiting support rods 4 vertically mounted on the bracket chassis 3 and a first limiting member 5 movably mounted on the limiting support rod 4 and capable of limiting the position of the bicycle frame reinforcement beam, the first limiting member 5 can make the bicycle frame stable and limited The limiting assembly also includes several groups of limiting seats 6 movably arranged on both sides of the limiting support rod 4 and a second limiting member 7 detachably mounted on the limiting seat 6 and limiting the bicycle wheel. The limiting seat 6 and the second limiting member 7 can make the bicycle stably parked on the bracket chassis 3; the limiting assembly also includes a limiting plate 8 fixedly connected to the limiting seat 6, several groups of guide sliders 9 movably arranged on the bracket chassis 3 and a connecting rod 10 connecting the guide slider 9 to the limiting plate 8, and the guide slider 9 is provided with a connecting hole connected to the connecting rod 10; a slide groove is provided on the bracket chassis 3 to be slidably connected to the guide slider 9; the fixing assembly includes a fixing seat 11 symmetrically arranged on the lower end surface of the bracket chassis 3, a fixing member 12 movably arranged on the fixing seat 11 and a fixing block 13 fixedly arranged at the lower end of the support frame 2, the fixing member 12 is connected to the fixing block 13, and can fix the bracket chassis 3; the fixing block 13 is provided with a fixing hole detachably connected to the fixing member 12.

[0027] As an embodiment of the present invention, the external component 1 is installed to the rear of the car, the support frame 2 is fixed to the external component 1, the limit plate 8 is moved so that the guide slider 9 slides in the slide groove, and the limit plate 8 drives the limit seat 6 to move, and the connecting rod 10 is rotated to fix the limit plate 8 to the bracket chassis 3, and the bicycle wheel is placed into the limit seat 6, and the second limit member 7 is adjusted to fix the bicycle wheel to the limit seat 6, and the first limit member 5 on the limit support rod 4 is adjusted. The first limit member 5 fixes the bicycle frame reinforcement beam to the limit support rod 4, thereby fixing the bicycle and transporting it through the car. When it is necessary to open the trunk of the car, the fixing member 12 is removed from the fixing hole, the fixing member 12 and the fixing block 13 are separated, the fixing seat 11 is separated from the support frame 2, and the bracket chassis 3 is rotated to drive the bicycle to rotate, and the bracket chassis 3 is rotated to the side of the support frame 2 away from the car, so that people can open the trunk of the car.

[0028] The support frame 2 in this embodiment includes a first reinforcing rod 14 that is detachably fixed to the external component 1, a second reinforcing rod 15 that is vertically connected to the first reinforcing rod 14, and several groups of support rods 16 that are vertically mounted on the second reinforcing rod 15. The lower end of the bracket chassis 3 is symmetrically provided with several groups of rotating parts 17 that are rotatably connected to one end of the support rod 16. The bracket chassis 3 can be flipped more than 90 degrees on the support frame 2 through the rotating parts 17, thereby making it easier for people to open the car trunk and improving the practicality of the bicycle bracket. The first reinforcing rod 14, the second reinforcing rod 15 and the support rod 16 are all configured as square rods. The first reinforcing rod 14, the second reinforcing rod 15 and the support rod 16 can cooperate to support the bracket chassis 3 and the bicycle.

[0029] As an embodiment of the present invention, please refer to the accompanying drawings. Figure 2 - Figure 4 As shown, one end of the first reinforcing rod 14 is fixed to the external component 1, and the fixing seat 11 is placed on the support rod 16, so that the support rod 16 stably supports the bracket chassis 3. When the bracket chassis 3 rotates, the rotating member 17 rotates at one end of the support rod 16.

[0030] The first limiting member 5 in this embodiment includes a support block 18 sleeved on the limiting support rod 4 and a limiting frame 19 threadedly fixed to the support block 18. A reinforcing rod 31 threadedly connected to the support block 18 is vertically arranged on the limiting frame 19. The reinforcing rod 31 can adjust the horizontal position of the limiting frame 19. The support block 18 can adjust the height on the limiting support rod 4. A limiting block 20 for fixing the bicycle frame reinforcement beam is provided on the limiting frame 19. The limiting frame 19 and the limiting block 20 cooperate to fix the bicycle frame reinforcement beam. An adjusting rod 21 for controlling the movement of the limiting block 20 is threadedly installed on the limiting frame 19. The adjusting rod 21 can limit the position of the block 20, so that the limiting block 20 and the limiting frame 19 can cooperate to fix the bicycle frame reinforcement beam.

[0031] As an embodiment of the present invention, please refer to the accompanying drawings. Figure 1 - Figure 5 As shown,

[0032] Move the support block 18 to drive the limit frame 19 to move near the bicycle frame reinforcement beam, rotate the reinforcement rod 31 to drive the limit frame 19 to move to the bicycle frame reinforcement beam, rotate the adjustment rod 21 to drive the limit block 20 to move, so that the limit block 20 is connected to the bicycle frame reinforcement beam, thereby fixing the bicycle frame reinforcement beam to the limit frame 19.

[0033] The rear end face of the support block 18 in this embodiment is equipped with a limiting screw 22 connected to the limiting support rod 4. The limiting support rod 4 is provided with several groups of limiting holes connected to the limiting screw 22 at equal intervals from top to bottom. The limiting support rod 4 is a round rod structure. The support block 18 adjusts the height position of the limiting frame 19 through the limiting screw 22.

[0034] As an embodiment of the present invention, please refer to the accompanying drawings. Figure 1 - Figure 2 As shown, the support block 18 is moved to a position aligned with the limiting hole, the limiting screw 22 is fixed into the limiting hole, and the support block 18 is fixed to the limiting support rod 4.

[0035] The vertical cross-sections of the limit frame 19 and the limit seat 6 in this embodiment are both U-shaped structures. The inner bottom surface of the limit seat 6 is equipped with an elastic support block 23 for supporting the bicycle wheel. The elastic support block 23 is provided with an anti-slip groove 24, which can increase the friction between the bicycle wheel and the elastic support block 23.

[0036] As an embodiment of the present invention, please refer to the accompanying drawings. Figure 1 - Figure 2As shown, the bicycle wheel is placed in the limiting seat 6 , and the elastic support block 23 supports the bicycle wheel so that the anti-slip groove 24 contacts the bicycle wheel, and the second limiting member 7 fixes the bicycle wheel in the limiting seat 6 .

[0037] The second limiting member 7 in this embodiment includes a limiting lock block 25 fixedly arranged on the inner side surface of the limiting seat 6 and a limiting lock rod 26 movably installed on the limiting seat 6. The limiting lock rod 26 is arranged above the elastic support block 23. The limiting lock block 25 is provided with a lock hole corresponding to the limiting lock rod 26. One end of the limiting lock rod 26 can pass through the bicycle wheel and cooperate with the limiting lock block 25 to fix the bicycle wheel.

[0038] As an embodiment of the present invention, please refer to the accompanying drawings. Figure 1 - Figure 2 As shown, the bicycle wheel is placed into the anti-slip groove 24, one end of the limiting lock rod 26 passes through the bicycle wheel and is installed in the lock hole, and the limiting lock rod 26 is connected to the limiting lock block 25, thereby limiting the bicycle wheel.

[0039] The fixing member 12 in this embodiment includes a fixing rod 27 movably arranged on the fixing seat 11, a fixing block 28 detachably mounted on the fixing rod 27, and a spring 29 sleeved on the fixing rod 27. The fixing block 28 is threadedly connected to the fixing rod 27. A groove for moving the fixing block 28 is provided inside the fixing seat 11. One end of the spring 29 is connected to the fixing block 28, and one end of the fixing rod 27 can be inserted into the fixing hole, so that the bracket chassis 3 can be fixed to the support frame 2.

[0040] As an embodiment of the present invention, please refer to the accompanying drawings. Figure 2 and Figure 4 As shown, the fixing rod 27 is pulled to drive the fixed block 28 to move, and the fixed block 28 drives the spring 29 to move and squeeze the spring 29 to move one end of the fixing rod 27 out of the fixing hole, and the fixing seat 11 and the fixing block 13 are disassembled and separated.

[0041] The bracket chassis 3 in this embodiment is provided with a weight-reducing groove, and a mounting plate 30 for fixing the license plate is fixed to the rear end face of the bracket chassis 3. The car license plate is fixed to the mounting plate 30 to prevent the bracket chassis 3 and the bicycle from blocking the car license plate.

[0042] As an embodiment of the present invention, please refer to the accompanying drawings. Figure 1 - Figure 2 As shown, the mounting plate 30 is fixed to the rear end surface of the bracket chassis 3 , and the automobile license plate is mounted on the outer surface of the mounting plate 30 .

[0043] The working principle of the present invention is as follows: install the external component 1 to the rear of the car, fix one end of the first reinforcement rod 14 to the external component 1, fix the support frame 2 to the external component 1, move the limit plate 8, so that the guide slider 9 slides in the slide groove, and the limit plate 8 drives the limit seat 6 to move, rotate the connecting rod 10, fix the limit plate 8 to the bracket chassis 3, put the bicycle wheel into the limit seat 6, put the bicycle wheel into the anti-slip groove 24, pass one end of the limit lock rod 26 through the bicycle wheel and install it into the lock hole, connect the limit lock rod 26 with the limit lock block 25, so as to limit the bicycle wheel, fix the bicycle wheel to the limit seat 6, adjust the first limit member 5 on the limit support rod 4, move the support block 18, drive the limit frame 19 to move to the vicinity of the bicycle frame reinforcement beam, fix the limit screw 22 to the limit hole, and fix the support block 1 8 is fixed to the limit support rod 4, the reinforcing rod 31 is rotated to drive the limit frame 19 to move to the bicycle frame reinforcing beam, the adjusting rod 21 is rotated to drive the limit block 20 to move so that the limit block 20 is connected with the bicycle frame reinforcing beam, thereby fixing the bicycle frame reinforcing beam to the limit frame 19, and the first limit member 5 fixes the bicycle frame reinforcing beam to the limit support rod 4, thereby fixing the bicycle and transporting it through the car. When it is necessary to open the trunk of the car, the fixing member 12 is removed from the fixing hole, the fixing member 12 and the fixing block 13 are separated, the fixing seat 11 is separated from the support frame 2, and the bracket chassis 3 is rotated so that the rotating member 17 rotates at one end of the support rod 16. The bracket chassis 3 drives the bicycle to rotate and rotates the bracket chassis 3 to the side of the support frame 2 away from the car, making it easier for people to open the trunk of the car.

[0044] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. An adjustable bicycle bracket for vehicle use, characterized in that: It comprises an external component (1) that is detachably fixed to the rear of the automobile and a bracket mechanism that is detachably fixed to the external component (1); The bracket mechanism comprises a support frame (2) detachably fixed to an external component (1), a bracket chassis (3) rotatably mounted on the support frame (2), a limiting component arranged at the upper end of the bracket chassis (3) and limiting the position of the bicycle, and a fixing component fixedly connecting the bracket chassis (3) to the support frame (2); The limiting assembly comprises a plurality of groups of limiting support rods (4) vertically mounted on the bracket chassis (3) and a first limiting member (5) movably mounted on the limiting support rods (4) and capable of limiting the position of the bicycle frame reinforcement beam; The limiting assembly further comprises a plurality of limiting seats (6) movably arranged on both sides of the limiting support rod (4) and a second limiting member (7) detachably mounted on the limiting seat (6) and used to limit the bicycle wheel; The limiting assembly further comprises a limiting plate (8) fixedly connected to the limiting seat (6), a plurality of guide sliders (9) movably arranged on the bracket chassis (3), and a connecting rod (10) connecting the guide sliders (9) and the limiting plate (8); The bracket chassis (3) is provided with a sliding groove that is slidably connected to the guide slider (9); The fixing assembly comprises a fixing seat (11) symmetrically arranged on the lower end surface of the bracket chassis (3), a fixing member (12) movably arranged on the fixing seat (11), and a fixing block (13) fixedly arranged on the lower end of the support frame (2); The fixing block (13) is provided with a fixing hole which is detachably connected to the fixing piece (12).

2. The adjustable bicycle bracket for vehicle use according to claim 1, characterized in that: The support frame (2) comprises a first reinforcing rod (14) detachably fixed to the external member (1), a second reinforcing rod (15) vertically connected to the first reinforcing rod (14), and a plurality of groups of support rods (16) vertically mounted on the second reinforcing rod (15). The lower end of the bracket chassis (3) is symmetrically provided with a plurality of groups of rotating members (17) rotatably connected to one end of the support rod (16).

3. The adjustable bicycle bracket for vehicle use according to claim 1, characterized in that: The first limiting member (5) comprises a support block (18) sleeved on the limiting support rod (4) and a limiting frame (19) threadedly fixed to the supporting block (18); a reinforcing rod (31) threadedly connected to the supporting block (18) is vertically arranged on the limiting frame (19); a limiting block (20) for fixing the reinforcing beam of the bicycle frame is provided on the limiting frame (19); and an adjusting rod (21) for controlling the movement of the limiting block (20) is threadedly mounted on the limiting frame (19).

4. The adjustable bicycle bracket for vehicle use according to claim 3, characterized in that: A limiting screw (22) connected to the limiting support rod (4) is installed on the rear end surface of the support block (18), and the limiting support rod (4) is provided with a plurality of groups of limiting holes connected to the limiting screw (22) at equal intervals from top to bottom.

5. The adjustable bicycle rack for vehicle use according to claim 3, characterized in that: The vertical cross-sections of the limiting frame (19) and the limiting seat (6) are both U-shaped structures. An elastic support block (23) for supporting a bicycle wheel is installed on the inner bottom surface of the limiting seat (6). An anti-slip groove (24) is provided on the elastic support block (23).

6. The adjustable bicycle rack for vehicle use according to claim 5, characterized in that: The second limiting member (7) comprises a limiting locking block (25) fixedly arranged on the inner side of the limiting seat (6) and a limiting locking rod (26) movably mounted on the limiting seat (6), wherein the limiting locking rod (26) is arranged above the elastic support block (23), and a locking hole corresponding to the limiting locking rod (26) is provided on the limiting locking block (25).

7. The adjustable bicycle rack for vehicle use according to claim 1, characterized in that: The fixing member (12) includes a fixing rod (27) movably arranged on the fixing seat (11), a fixing block (28) detachably mounted on the fixing rod (27), and a spring (29) sleeved on the fixing rod (27), one end of the spring (29) is connected to the fixing block (28), and one end of the fixing rod (27) can be inserted into the fixing hole.

8. The adjustable bicycle rack for vehicle use according to claim 1, characterized in that: A weight-reducing groove is provided on the bracket chassis (3), and a mounting plate (30) for fixing a license plate is fixed to the rear end surface of the bracket chassis (3).

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