Motorcycle on-vehicle bracket

Abstract

The present invention discloses a motorcycle on-vehicle bracket, which comprises a jack, a cylinder body, a cross arm, a pair of pipe sleeves, a pair of brackets and a pressing plate. The cross arm is fixedly installed at the bottom of the jack. The pair of pipe sleeves are fixedly connected. Pipe bodies are respectively arranged on the pair of brackets, and the pair of brackets are respectively movably inserted into the pair of pipe sleeves through the pipe bodies. An anti-rotation mechanism and a positioning mechanism are respectively arranged between the pipe bodies and the pipe sleeves. The cylinder body is sleeved outside the jack, the plunger of the jack is fixedly connected with the cylinder body, the pair of pipe sleeves are fixedly connected with the cylinder body, and the pair of pipe sleeves are located below the cross arm. A locking mechanism is respectively arranged between the pair of pipe sleeves and the cross arm. The pressing plate is installed on the cylinder body through a lifting mechanism. The advantages of the present invention are: time-saving and labor-saving, very convenient, capable of being quickly disassembled and assembled, facilitating logistics transportation, and having a small design volume, a large load-bearing capacity, and safe and stable lifting.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted brackets, and more specifically to the technical field of motorcycle shipping brackets. Background Art

[0002] A motorcycle bracket is a vehicle-mounted tool that is fixedly installed on the rear anti-collision beam of an automobile and can be used to carry and fix a motorcycle on the automobile for transferring and transporting the motorcycle between different sites. Currently, common motorcycle brackets are mostly simple pipe rack structures, which not only have complex structures, occupy a large space, are inconvenient to disassemble and assemble, have a small load-bearing capacity, and are not very stable for motorcycle shipping, but also have a certain height from the ground after the motorcycle frame is fixed on the automobile. Therefore, when it is necessary to place the motorcycle on the motorcycle frame or remove the motorcycle from the motorcycle frame, manual lifting of the motorcycle is required. Since the weight of the motorcycle is usually heavy, at least two people are generally needed to move the motorcycle during motorcycle shipping, which is time-consuming and laborious. During the process of lifting and placing the motorcycle, if the motorcycle accidentally falls, it will also cause damage to personal safety, posing a relatively large safety hazard. In addition, traditional motorcycle brackets are of an integral non-adjustable structure, so they cannot well meet the shipping requirements of motorcycles of different sizes and models. Summary of the Invention

[0003] The purpose of the present invention is to provide a motorcycle vehicle-mounted bracket that has a small occupied space, is convenient to disassemble and assemble, is very convenient for loading or unloading a motorcycle, is safe and stable when lifting, and can well meet the shipping requirements of motorcycles of different sizes and models to solve the above-mentioned deficiencies.

[0004] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0005] A motorcycle vehicle-mounted bracket includes a jack, a cylinder body, a crossbar, a pair of pipe sleeves, a pair of brackets, and a pressing plate. The crossbar is fixedly installed at the bottom of the jack. The pair of pipe sleeves are fixedly connected. Pipe bodies are respectively arranged on the pair of brackets, and the pair of brackets are respectively movably inserted into the pair of pipe sleeves through the pipe bodies. An anti-rotation mechanism and a positioning mechanism are respectively arranged between the pipe body and the pipe sleeve. The cylinder body is sleeved outside the jack, the plunger of the jack is fixedly connected to the cylinder body, the pair of pipe sleeves are fixedly connected to the cylinder body, and the pair of pipe sleeves are located below the crossbar. A locking mechanism is respectively arranged between the pair of pipe sleeves and the crossbar. The pressing plate is installed on the cylinder body through a lifting mechanism.

[0006] The bracket as a whole is in the shape of a round-headed rectangular frame. The paired brackets respectively include a first U-shaped tube and a second U-shaped tube. The tube body is located on the first U-shaped tube. Insertion tubes are respectively arranged at both ends of the second U-shaped tube. The second U-shaped tube is inserted into the end of the first U-shaped tube through the insertion tubes. A first pin hole is opened on the first U-shaped tube, and a row of adjustment holes is opened on the insertion tubes. A locking mechanism corresponding to the first pin hole and the adjustment holes is arranged on the first U-shaped tube. Locking rings are respectively arranged on the first U-shaped tube and the second U-shaped tube.

[0007] Both the locking mechanism and the positioning mechanism are spring lock pins. The spring lock pin is composed of a bracket, a pin rod and a first compression spring. A through hole is opened on the bracket. A pin head and a limit end are respectively arranged at both ends of the pin rod. The pin rod passes through the through hole. The first compression spring is sleeved on the pin rod. The two ends of the first compression spring respectively abut against the pin head and the bracket. The limit end abuts against the bracket. The bracket of the locking mechanism is fixedly installed on the first U-shaped tube. The pin head of the locking mechanism is inserted into the first pin hole of the first U-shaped tube and the adjustment holes of the insertion tubes. The bracket of the positioning mechanism is fixedly installed on the tube sleeve. A second pin hole is opened on the tube sleeve. A lock hole is opened on the tube body. The pin head of the positioning mechanism is inserted into the second pin hole of the tube sleeve, and the pin head corresponds to the lock hole of the tube body.

[0008] The anti-rotation mechanism includes anti-rotation blocks. The anti-rotation blocks are respectively fixedly installed on the paired tube bodies. The paired anti-rotation blocks respectively abut against the paired tube sleeves.

[0009] It also includes paired U-shaped bolts and locking nuts. Bolt holes are opened at the bottom of the jack. Paired limit frames are arranged on the cross arm. The paired U-shaped bolts are respectively sleeved outside the cross arm. The two ends of the U-shaped bolts respectively pass through the bolt holes of the jack. The locking nuts are respectively screwed on the two ends of the U-shaped bolts.

[0010] The buckle mechanism includes a buckle lock and a lock hook. The buckle lock includes a frame, a buckle ring, an O-shaped cushion block, a second compression spring and a handle. Supports are respectively arranged at both ends of the cross arm. The handle is hinged to the support through a first pivot. The frame is hinged to the handle through a second pivot. A through slot is opened at the end of the frame. Guide slots are respectively opened on both sides of the frame. A connecting rod is arranged on the buckle ring. The connecting rod passes through the through slot of the frame. A limit rod is arranged on the connecting rod. The two ends of the limit rod are movably clamped in the guide slots. The second compression spring is sleeved on the connecting rod. The two ends of the second compression spring respectively abut against the limit rod and the frame. The O-shaped cushion block is welded and fixed at the bottom of the buckle ring. First avoidance slots are respectively opened at both ends of the cross arm. The lock hooks are respectively fixedly installed on the paired tube sleeves. The lock hooks respectively pass through the first avoidance slots of the cross arm. The buckle lock is hung on the lock hook through the buckle ring and the O-shaped cushion block.

[0011] The lifting mechanism includes a screw rod, a swing rod, a connecting sleeve and a screw sleeve. One end of the swing rod is hinged to the cylinder body through a third pivot. The screw sleeve is fixedly installed at the other end of the swing rod. The screw rod is screwed in the screw sleeve. A handle is provided at the upper end of the screw rod. The connecting sleeve is fixedly installed on the pressing plate through a connecting frame. A limiting plate is provided at the lower end of the screw rod. The screw rod is movably clamped in the connecting sleeve through the limiting plate.

[0012] It further includes a support rod and a bottom support base. The upper end of the support rod is fixedly connected to the cylinder body. The bottom support base is fixedly connected to a pair of pipe sleeves. The lower end of the support rod is fixedly connected to the bottom support base through a connecting bolt and a connecting nut. The support rods are respectively located on the front and rear sides of the jack.

[0013] The jack is a hydraulic jack. A second avoidance groove corresponding to the control rod of the jack is provided on the cylinder body. A weight reduction hole is provided on the cylinder body.

[0014] The pair of pipe sleeves are fixedly connected by soldering. A pair of side plates are provided at the bottom of the cross arm. The pair of side plates are respectively located on both sides of the pipe sleeve.

[0015] The beneficial effects that can be achieved by the present invention adopting the above technical solutions are as follows:

[0016] 1. The motorcycle on-vehicle carrier of the present invention supports the wheels of the motorcycle through the carrier, presses and fixes the saddle of the motorcycle through the pressing plate, and then lifts and lowers the motorcycle through the jack, so that it is very convenient for loading, transporting or unloading the motorcycle. There is no need to manually carry and lift the motorcycle. Only one person can complete the loading or unloading operation of the motorcycle, which saves time and effort, is very convenient, can be quickly disassembled and assembled, is convenient for logistics transportation, and has a small design volume and a large load capacity, and is safe and stable to lift.

[0017] 2. The pipe body on the carrier can be telescopically moved along the axial direction of the pipe sleeve, so as to meet the loading and transporting needs of motorcycles with different wheelbases. After pulling out the pin head of the locking mechanism from the adjustment hole of the insertion pipe, the distance between the first U-shaped pipe and the second U-shaped pipe can be adjusted, so as to meet the loading and transporting needs of motorcycles with different tire sizes. Motorcycles of various large, medium and small models can be used, and the telescopic and flipping operations of the carrier are very flexible and convenient.

[0018] 3. When the carrier is turned upwards, it can drive the pipe body to rotate, so that the lock hole coincides with the second pin hole. At this time, the pin head of the positioning mechanism is stuck into the lock hole to lock the pipe body and the carrier, realizing the folding of the carrier, thus greatly reducing the space occupied by the motorcycle on-vehicle carrier. Description of the Drawings

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 is Figure 1 a sectional view of;

[0021] Figure 3 is Figure 1 a top view of parts such as the middle pipe sleeve and the bracket in;

[0022] Figure 4 is Figure 1 a partially enlarged schematic view at position A in;

[0023] Figure 5 is Figure 1 a partially enlarged schematic view at position B in;

[0024] Figure 6 is Figure 2 a partially enlarged schematic view at position C in;

[0025] Figure 7 is Figure 2 an S - S sectional view of;

[0026] Figure 8 is Figure 6 a partially enlarged schematic view at position D in;

[0027] Figure 9 is Figure 7 a partially enlarged schematic view at position N in;

[0028] Figure 10 is Figure 7 an H - H sectional view of;

[0029] Figure 11 is Figure 3 a partially enlarged schematic view at position M in;

[0030] Figure 12 is Figure 3 an R - R sectional view of;

[0031] Figure 13 is Figure 3 a V - V sectional view of. Specific implementation manner

[0032] As shown by Figure 1 and Figure 2 a motorcycle on - vehicle bracket includes a jack 1, a cylinder body 2, a cross bar 3, a pair of pipe sleeves 4, a pair of brackets, a pressing plate 6, a pair of U - shaped bolts 27, a locking nut 28, a support rod 53 and a bottom support seat 54. The cross bar 3 is fixedly installed at the bottom of the jack 1 and is fixedly installed in the following manner: As shown by Figure 6 and Figure 7As shown, bolt holes 29 are formed at the bottom of the jack 1. A pair of limiting frames 30 are arranged on the cross bar 3. The paired U-shaped bolts 27 are respectively sleeved outside the cross bar 3, and both ends of the U-shaped bolts 27 respectively pass through the bolt holes 29 of the jack 1. The locking nuts 28 are respectively screwed on both ends of the U-shaped bolts 27.

[0033] As shown by Figure 3 and Figure 11 shown, the paired pipe sleeves 4 are fixedly connected by soldering with solder 60. Pipe bodies 7 are respectively arranged on the paired brackets. The paired brackets are respectively movably inserted into the paired pipe sleeves 4 through the pipe bodies 7. The specific structure of the brackets is as follows: The whole bracket is in a round-head rectangular frame shape corresponding to the motorcycle wheel. The paired brackets respectively include a first U-shaped pipe 5 and a second U-shaped pipe 11. The pipe body 7 is located on the first U-shaped pipe 5. Insertion pipes 12 are respectively arranged at both ends of the second U-shaped pipe 11. The second U-shaped pipe 11 is inserted into the end of the first U-shaped pipe 5 through the insertion pipes 12. A first pin hole 13 is formed in the first U-shaped pipe 5. Rows of adjustment holes 14 are formed in the insertion pipes 12. A locking mechanism 15 corresponding to the first pin hole 13 and the adjustment holes 14 is arranged on the first U-shaped pipe 5. Locking rings 25 are respectively arranged on the first U-shaped pipe 5 and the second U-shaped pipe 11. An anti-rotation mechanism and a positioning mechanism 18 are respectively arranged between the pipe body 7 and the pipe sleeve 4. The specific structure of the anti-rotation mechanism and its connection relationship with the pipe body 7 and the pipe sleeve 4 are as follows: As shown by Figure 12 shown, the anti-rotation mechanism includes anti-rotation blocks 26. The anti-rotation blocks 26 are respectively fixedly installed on the paired pipe bodies 7. The paired anti-rotation blocks 26 respectively abut against the paired pipe sleeves 4. The function of the anti-rotation blocks 26 is to prevent Figure 1 the paired brackets in Figure 12 from flipping downward, that is, the pipe body 7 on the bracket in

[0034] can only rotate counterclockwise and cannot rotate clockwise. Figure 11 and Figure 13 shown, the locking mechanism 15 and the positioning mechanism 18 are both spring lock pins. The spring lock pin is composed of a bracket 19, a pin rod 20 and a first compression spring 24. A through hole 21 is formed in the bracket 19. Pin heads 22 and limit end heads 23 are respectively arranged at both ends of the pin rod 20. The pin rod 20 is inserted into the through hole 21. The first compression spring 24 is sleeved on the pin rod 20. Both ends of the first compression spring 24 respectively abut against the pin head 22 and the bracket 19. The limit end head 23 abuts against the bracket 19. As shown by Figure 11As shown, the bracket 19 of the locking mechanism 15 is fixedly installed on the first U-shaped tube 5, and the pin head 22 of the locking mechanism 15 is inserted into the first pin hole 13 of the first U-shaped tube 5 and the adjustment hole 14 of the insertion tube 12. From Figure 13 As shown, the bracket 19 of the positioning mechanism 18 is fixedly installed on the tube sleeve 4. A second pin hole 16 is provided on the tube sleeve 4, a lock hole 17 is provided on the tube body 7, and the pin head 22 of the positioning mechanism 18 is inserted into the second pin hole 16 of the tube sleeve 4, and the pin head 22 corresponds to the lock hole 17 of the tube body 7.

[0035] From Figure 1 and Figure 2 As shown, the cylinder body 2 is sleeved outside the jack 1. A weight reduction hole 57 is provided on the cylinder body 2. The jack 1 is a hydraulic jack, and a second avoidance groove 59 corresponding to the control rod 58 of the jack 1 is provided on the cylinder body 2. The plunger 8 of the jack 1 is fixedly connected to the cylinder body 2, and a pair of tube sleeves 4 are fixedly connected to the cylinder body 2, and the fixed connection is carried out in the following manner: From Figure 1 and Figure 3 As shown, the upper end of the support rod 53 is fixedly connected to the cylinder body 2, the bottom support seat 54 is fixedly connected to a pair of tube sleeves 4, the lower end of the support rod 53 is fixedly connected to the bottom support seat 54 through a connecting bolt 55 and a connecting nut 56, and the support rods 53 are respectively located on the front and rear sides of the jack 1. A pair of tube sleeves 4 are located below the cross arm 3. From Figure 10 As shown, a pair of side plates 61 are provided at the bottom of the cross arm 3, and the pair of side plates 61 are respectively located on both sides of the tube sleeve 4. Locking mechanisms are respectively provided between the pair of tube sleeves 4 and the cross arm 3. The specific structure of the locking mechanism and its connection relationship with the tube sleeve 4 and the cross arm 3 are as follows: From Figure 8 and Figure 9 As shown, the locking mechanism includes a buckle lock 10 and a lock hook 31. The buckle lock 10 includes a frame 32, a buckle ring 33, an O-shaped cushion block 34, a second compression spring 35 and a handle 36. Supports 37 are respectively provided at both ends of the cross arm 3. The handle 36 is hinged to the support 37 through a first pivot shaft 38, the frame 32 is hinged to the handle 36 through a second pivot shaft 39. A through groove 40 is provided at the end of the frame 32, and guide grooves 41 are respectively provided on both sides of the frame 32. A connecting rod 42 is provided on the buckle ring 33. The connecting rod 42 passes through the through groove 40 of the frame 32. A limiting rod 43 is provided on the connecting rod 42. Both ends of the limiting rod 43 are movably clamped in the guide groove 40. The second compression spring 35 is sleeved on the connecting rod 42. Both ends of the second compression spring 35 respectively abut against the limiting rod 43 and the frame 32. The O-shaped cushion block 34 is welded and fixed to the bottom of the buckle ring 33. First avoidance grooves 44 are respectively provided at both ends of the cross arm 3. The lock hooks 31 are respectively fixedly installed on a pair of tube sleeves 4. The lock hooks 31 respectively pass through the first avoidance grooves 44 of the cross arm 3, and the buckle lock 10 is hung on the lock hooks 31 through the buckle ring 33 and the O-shaped cushion block 34.

[0036] The pressing plate 6 is installed on the cylinder body 2 through a lifting mechanism. The shape of the pressing plate 2 fits the shape of the motorcycle saddle. The specific structure of the lifting mechanism and its connection relationship with the pressing plate 6 and the cylinder body 2 are as follows: As shown by Figure 4 and Figure 5 , the lifting mechanism includes a screw rod 45, a swing rod 46, a connecting sleeve 47 and a screw sleeve 48. One end of the swing rod 46 is hinged to the cylinder body 2 through a third pivot 49. The screw sleeve 48 is fixedly installed on the other end of the swing rod 46. The screw rod 45 is screwed into the screw sleeve 48. A handle 50 is arranged at the upper end of the screw rod 45. The connecting sleeve 47 is fixedly installed on the pressing plate 6 through a connecting frame 51. A limiting plate 52 is arranged at the lower end of the screw rod 45. The screw rod 45 is movably clamped in the connecting sleeve 47 through the limiting plate 52.

[0037] Before the motorcycle vehicle carrier of the present invention is used, it needs to be first installed and fixed on the rear anti-collision beam of the vehicle. The specific installation and fixing method is as follows: Take a longitudinal support beam 62 and fix it on the rear anti-collision beam of the vehicle. Pass the longitudinal support beam 62 through between a pair of limiting frames 30, then tighten the U-shaped bolt 27 and the locking nut 28, and clamp and fix the longitudinal support beam 62 through the bottom of the jack 1 and the cross bar 3. When it is necessary to load and fix the motorcycle on the motorcycle vehicle carrier, first unlock the buckle lock 10 and the lock hook 31, then lower the plunger 8 of the jack 1 through the control rod 58 of the jack 1 to lower the carrier to the ground. Then push the motorcycle to the position of the carrier so that the two wheels of the motorcycle are exactly located within the pair of carriers. Then control the jack 1 through the control rod 58 to lift the cylinder body 2. The length of the carrier needs to be shorter than the diameter of the motorcycle wheel so that the pair of carriers can be sleeved on the motorcycle wheel during the rising process. After the carrier is sleeved on the motorcycle wheel, lift the motorcycle. When the cylinder body 2 rises to the highest position, then lock the buckle lock 10 and the lock hook 31. The lock ring 25 can be used to pass through and fix the binding rope, and the motorcycle can be tied and reinforced through the binding rope. Then rotate the swing rod 46 around the third pivot 49 to move the pressing plate 6 to directly above the motorcycle saddle, and then rotate the screw rod 45 through the handle 50 to move the pressing plate 6 downward to tightly press and fix the saddle of the motorcycle, thereby loading and fixing the motorcycle on the motorcycle vehicle carrier. The pipe body 7 on the carrier can axially expand and contract along the pipe sleeve 4, so as to meet the loading and consignment needs of motorcycles with different wheelbases. After pulling out the pin head 22 of the locking mechanism 15 from the adjustment hole 14 of the insertion pipe 12, the distance between the first U-shaped pipe 5 and the second U-shaped pipe 11 can be adjusted to meet the loading and consignment needs of motorcycles with different tire sizes. When there is no motorcycle placed on the motorcycle vehicle carrier, the Figure 1 carrier in Figure 13As shown, when the bracket rotates, it drives the tube body 7 to rotate counterclockwise by 90°, causing the lock hole 17 to coincide with the second pin hole 16. At this time, the pin head 22 of the positioning mechanism 18 snaps into the lock hole 17 to lock the tube body 7 and the bracket, and the bracket is folded to reduce the occupied space.

Claims

1. Motorcycle on-vehicle carrier, Characterized in that: It includes a jack, a cylinder body, a cross bar, a pair of pipe sleeves, a pair of brackets and a pressing plate. The cross bar is fixedly installed at the bottom of the jack. The pair of pipe sleeves are fixedly connected. Pipe bodies are respectively arranged on the pair of brackets. The pair of brackets are respectively movably inserted into the pair of pipe sleeves through the pipe bodies. An anti-rotation mechanism and a positioning mechanism are respectively arranged between the pipe body and the pipe sleeve. The cylinder body is sleeved outside the jack. The plunger of the jack is fixedly connected with the cylinder body. The pair of pipe sleeves are fixedly connected with the cylinder body. The pair of pipe sleeves are located below the cross bar. A buckle mechanism is respectively arranged between the pair of pipe sleeves and the cross bar. The pressing plate is installed on the cylinder body through a lifting mechanism, The bracket is integrally in a round-head rectangular frame shape. The pair of brackets respectively include a first U-shaped pipe and a second U-shaped pipe. The pipe body is located on the first U-shaped pipe. Insertion pipes are respectively arranged at both ends of the second U-shaped pipe. The second U-shaped pipe is inserted into the end part of the first U-shaped pipe through the insertion pipes. A first pin hole is opened on the first U-shaped pipe. A row of adjustment holes is opened on the insertion pipe. A locking mechanism corresponding to the first pin hole and the adjustment holes is arranged on the first U-shaped pipe. Locking rings are respectively arranged on the first U-shaped pipe and the second U-shaped pipe, The anti-rotation mechanism includes anti-rotation blocks. The anti-rotation blocks are respectively fixedly installed on the pair of pipe bodies. The pair of anti-rotation blocks respectively abut against the pair of pipe sleeves, The buckle mechanism includes a buckle lock and a locking hook. The buckle lock includes a frame, a buckle ring, an O-shaped cushion block, a second compression spring and a handle. Supports are respectively arranged at both ends of the cross bar. The handle is hinged to the support through a first pivot shaft. The frame is hinged to the handle through a second pivot shaft. A through groove is opened at the end of the frame. Guide grooves are respectively opened on both sides of the frame. A connecting rod is arranged on the buckle ring. The connecting rod is inserted into the through groove of the frame. A limiting rod is arranged on the connecting rod. The two ends of the limiting rod are movably clamped in the guide grooves. The second compression spring is sleeved on the connecting rod. The two ends of the second compression spring respectively abut against the limiting rod and the frame. The O-shaped cushion block is welded and fixed at the bottom of the buckle ring. First avoidance grooves are respectively opened at both ends of the cross bar. The locking hooks are respectively fixedly installed on the pair of pipe sleeves. The locking hooks respectively pass through the first avoidance grooves of the cross bar. The buckle lock is hung on the locking hook through the buckle ring and the O-shaped cushion block, The lifting mechanism includes a screw rod, a swing rod, a connecting sleeve and a screw sleeve. One end of the swing rod is hinged to the cylinder body through a third pivot shaft. The screw sleeve is fixedly installed at the other end of the swing rod. The screw rod is screwed into the screw sleeve. A handle is arranged at the upper end of the screw rod. The connecting sleeve is fixedly installed on the pressing plate through a connecting frame. A limiting plate is arranged at the lower end of the screw rod. The screw rod is movably clamped in the connecting sleeve through the limiting plate. The jack is a hydraulic jack. A second avoidance groove corresponding to the control rod of the jack is opened on the cylinder body. A weight-reducing hole is opened on the cylinder body. The pair of pipe sleeves are fixedly connected by solder welding. A pair of side plates are arranged at the bottom of the cross bar. The pair of side plates are respectively located on both sides of the pipe sleeve.

2. The motorcycle on-vehicle carrier according to claim 1, Characterized in that: Both the locking mechanism and the positioning mechanism are spring lock pins. The spring lock pin is composed of a bracket, a pin rod and a first compression spring. A through hole is provided on the bracket. A pin head and a limit end are respectively arranged at both ends of the pin rod. The pin rod passes through the through hole. The first compression spring is sleeved on the pin rod. The two ends of the first compression spring respectively abut against the pin head and the bracket. The limit end abuts against the bracket. The bracket of the locking mechanism is fixedly installed on the first U-shaped tube. The pin head of the locking mechanism is inserted into the first pin hole of the first U-shaped tube and the adjustment hole of the insertion tube. The bracket of the positioning mechanism is fixedly installed on the tube sleeve. A second pin hole is provided on the tube sleeve. A lock hole is provided on the tube body. The pin head of the positioning mechanism is inserted into the second pin hole of the tube sleeve, and the pin head corresponds to the lock hole of the tube body.

3. The motorcycle vehicle-mounted bracket according to claim 2, characterized in that: It further includes a pair of U-shaped bolts and locking nuts. A bolt hole is provided at the bottom of the jack. A pair of limit brackets are arranged on the crossbar. The pair of U-shaped bolts are respectively sleeved on the outside of the crossbar. The two ends of the U-shaped bolts respectively pass through the bolt holes of the jack. The locking nuts are respectively screwed on the two ends of the U-shaped bolts.

4. The motorcycle vehicle-mounted bracket according to claim 3, characterized in that: It further includes a support rod and a bottom support seat. The upper end of the support rod is fixedly connected to the cylinder body. The bottom support seat is fixedly connected to the pair of tube sleeves. The lower end of the support rod is fixedly connected to the bottom support seat through a connecting bolt and a connecting nut. The support rods are respectively located on the front and back sides of the jack.

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