CN213649462U - Motorcycle carrier - Google Patents

Abstract

The utility model discloses an on-vehicle bracket of motorcycle, it is including jack, barrel, cross arm, mated pipe box, mated bracket and clamp plate, cross arm fixed mounting is in the bottom of jack, mated pipe box fixed connection is provided with the body respectively on mated bracket, and mated bracket wears to put in mated pipe box through the body activity respectively, is provided with respectively between body and pipe box and prevents that favourable turn and positioning mechanism, the barrel overlaps and puts in the jack outside, the plunger and the barrel fixed connection of jack, mated pipe box and barrel fixed connection, and mated pipe box is located the cross arm below, is provided with latched device respectively between mated pipe box and cross arm, the clamp plate passes through elevating system and installs on the barrel, the utility model discloses the advantage is: time and labor are saved, the device is very convenient and fast, can be quickly disassembled and assembled, is convenient for logistics transportation, and has small design volume, large load, and safe and stable support.

Description

Motorcycle carrier

Technical Field

The utility model relates to a technical field of on-vehicle bracket, more specifically say so and relate to motorcycle consignment support's technical field.

Background

The motorcycle bracket is a vehicle-mounted tool which is fixedly arranged on a rear anti-collision beam of an automobile, can play a role of supporting and fixing the motorcycle on the automobile and is used for transferring and transporting the motorcycle between different places. And present common motorcycle bracket is mostly simple pipe support structure, not only the structure is complicated, occupation space is big, the dismouting is inconvenient, load is little, motorcycle delivery is not very firm, and the motorcycle frame is fixed on the car after apart from ground has a take the altitude, consequently when needs place the motorcycle on the motorcycle frame or take off the motorcycle from the motorcycle frame, all need be moved the motorcycle by the manual work and lift, and the weight of motorcycle is heavier usually, when carrying out the delivery to the motorcycle, generally need two at least people to move the motorcycle, waste time and energy, in-process lifting the motorcycle, if the motorcycle drops carelessly, still can cause the harm to personal safety, there is great potential safety hazard. In addition, the conventional motorcycle support bracket is of an overall non-adjustable structure, so that the motorcycle support bracket cannot well meet the requirements of delivery of motorcycles of different sizes and models.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned not enough and provide an occupation space little, easy dismounting, the motorcycle loads or unloads very conveniently, holds up safety, firm to can adapt to the motorcycle carrier bracket of the motorcycle consignment demand of not equidimension model well.

The utility model discloses a solve above-mentioned technical problem and the technical solution who adopts as follows:

the motorcycle-mounted bracket comprises a jack, a cylinder body, a cross arm, paired pipe sleeves, paired brackets and a pressing plate, wherein the cross arm is fixedly installed at the bottom of the jack, the paired pipe sleeves are fixedly connected, the pipe bodies are respectively arranged on the paired brackets, the paired brackets are respectively movably arranged in the paired pipe sleeves in a penetrating mode 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 on the outer side of the jack, a plunger of the jack is fixedly connected with the cylinder body, the paired pipe sleeves are positioned below the cross arm, locking mechanisms are respectively arranged between the paired pipe sleeves and the cross arm, and 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 paired brackets are respectively composed of a first U-shaped pipe and a second U-shaped pipe, the pipe body is located on the first U-shaped pipe, inserting pipes are respectively arranged at two ends of the second U-shaped pipe, the second U-shaped pipe is inserted into the end portion of the first U-shaped pipe through the inserting pipes, a first pin hole is formed in the first U-shaped pipe, adjusting holes which are arranged in rows are formed in the inserting pipes, a locking mechanism corresponding to the first pin hole and the adjusting holes is arranged on the first U-shaped pipe, and locking rings are respectively arranged on the first U-shaped pipe and the second U-shaped pipe.

The locking mechanism and the positioning mechanism are spring lock pins, each spring lock pin comprises a support, a pin rod and a first pressure spring, through holes are formed in the supports, pin heads and limiting ends are arranged at two ends of each pin rod respectively, each pin rod penetrates through the through hole, each first pressure spring is sleeved on the corresponding pin rod, two ends of each first pressure spring respectively abut against the corresponding pin head and the corresponding support, the limiting ends abut against the corresponding supports, the supports of the locking mechanism are fixedly mounted on the corresponding first U-shaped tubes, the pin heads of the locking mechanism are inserted into the first pin holes of the corresponding first U-shaped tubes and the adjusting holes of the corresponding inserting tubes, the supports of the positioning mechanism are fixedly mounted on the corresponding tube sleeves, second pin holes are formed in the corresponding tube sleeves, lock holes are formed in the corresponding tube bodies, and the pin heads of the positioning mechanism are inserted into the second pin holes of the corresponding tube bodies.

The anti-rotation mechanism comprises anti-rotation blocks, the anti-rotation blocks are respectively and fixedly installed on paired pipe bodies, and the paired anti-rotation blocks are respectively abutted against paired pipe sleeves.

The lifting jack is characterized by further comprising paired U-shaped bolts and locking nuts, bolt holes are formed in the bottom of the lifting jack, paired limiting frames are arranged on the cross arm, the paired U-shaped bolts are respectively sleeved on the outer side of the cross arm, two end portions of each U-shaped bolt penetrate through the bolt holes of the lifting jack respectively, and the locking nuts are respectively screwed at two end portions of each U-shaped bolt.

The lock catch mechanism comprises a buckle lock and a lock hook, the buckle lock comprises a frame, a buckle ring, an O-shaped cushion block, a second pressure spring and a handle, two ends of the cross arm are respectively provided with a support, the handle is hinged with the support through a first pivot, the frame is hinged with the handle through a second pivot, the end part of the frame is provided with a through groove, two side parts of the frame are respectively provided with a guide groove, the buckle ring is provided with a connecting rod which penetrates through the through groove of the frame, the connecting rod is provided with a limit rod, two end parts of the limit rod are movably clamped in the guide grooves, the second pressure spring is sleeved on the connecting rod, two end parts of the second pressure spring are respectively abutted against the limit rod and the frame, the O-shaped cushion block is welded and fixed at the bottom of the buckle ring, two end parts of the cross arm are respectively provided with a first avoiding groove, the lock hooks are respectively and fixedly installed on the paired pipe sleeves, and the, the hasp lock is hung and buckled on the lock hook through a retaining ring and an O-shaped cushion block.

Elevating system is including screw rod, pendulum rod, adapter sleeve and swivel nut, one end of pendulum rod is articulated with the barrel through the third pivot, and swivel nut fixed mounting is on another tip of pendulum rod, and the screw rod is put in the swivel nut soon, is provided with the handle in the upper end of screw rod, and the adapter sleeve passes through link fixed mounting on the clamp plate, is provided with the limiting plate under the screw rod, and the screw rod passes through limiting plate activity card and puts in the adapter sleeve.

The lifting jack is characterized by further comprising a supporting rod and a bottom supporting seat, the upper end of the supporting rod is fixedly connected with the barrel, the bottom supporting seat is fixedly connected with the paired pipe sleeves, the lower end of the supporting rod is fixedly connected with the bottom supporting seat through a connecting bolt and a connecting nut, and the supporting rod is located on the front side and the rear side of the lifting jack respectively.

The jack is a hydraulic jack, a second avoidance groove corresponding to a control rod of the jack is formed in the cylinder, and lightening holes are formed in the cylinder.

The paired pipe sleeves are fixedly connected through welding flux in a welding mode, paired side plates are arranged at the bottom of the cross arm, and the paired side plates are located on two sides of the pipe sleeves respectively.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:

1. the utility model discloses an on-vehicle bracket of motorcycle carries out the bearing through the wheel of bracket to the motorcycle, and it is fixed to push down through the clamp plate to the saddle of motorcycle, rethread jack goes up and down to the motorcycle, thereby the loading of the motorcycle of very being convenient for is hauled or is unloaded, need not the manual work and carry the lift to the motorcycle, only need one can accomplish the loading or the operation of unloading of motorcycle, time saving and labor saving, it is very convenient, but quick assembly disassembly, the commodity circulation transportation of being convenient for, and the design is small, the load is big, it is safe to jack up, it is firm.

2. The pipe body on the bracket can be extended and retracted along the axial direction of the pipe sleeve, so that the loading and consignment requirements of motorcycles with different wheelbases can be met, the distance between the first U-shaped pipe and the second U-shaped pipe can be adjusted after the pin head of the locking mechanism is pulled out of the adjusting hole of the inserting pipe, the loading and consignment requirements of motorcycles with different tire sizes can be met, the motorcycles can be used for motorcycles of various types, and the extension, retraction and overturning operations of the bracket are very flexible and portable.

3. When the bracket overturns upwards, the pipe body can be driven to rotate, the lock hole is coincided with the second pin hole, the pin head of the positioning mechanism is clamped into the lock hole at the moment, the pipe body and the bracket are locked, the bracket is folded, and therefore the space occupied by the motorcycle-mounted bracket is greatly reduced.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a top view of the shroud and bracket, etc. of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 1 at A;

FIG. 5 is an enlarged view of a portion of FIG. 1 at B;

FIG. 6 is an enlarged partial schematic view at C of FIG. 2;

FIG. 7 is a cross-sectional view S-S of FIG. 2;

FIG. 8 is an enlarged partial view of FIG. 6 at D;

FIG. 9 is an enlarged view of a portion of FIG. 7 at N;

FIG. 10 is a sectional view taken at H-H of FIG. 7;

FIG. 11 is an enlarged partial view at M of FIG. 3;

FIG. 12 is a cross-sectional view R-R of FIG. 3;

fig. 13 is a V-V sectional view of fig. 3.

Detailed Description

As shown in fig. 1 and 2, the motorcycle-mounted bracket comprises a jack 1, a cylinder 2, a cross arm 3, a pair of pipe sleeves 4, a pair of brackets, a pressure plate 6, a pair of U-shaped bolts 27, a locking nut 28, a support rod 53 and a bottom base 54, wherein the cross arm 3 is fixedly arranged at the bottom of the jack 1 and fixedly arranged in the following way: as shown in fig. 6 and 7, a bolt hole 29 is formed in the bottom of the jack 1, a pair of stopper brackets 30 are provided on the cross arm 3, a pair of U-bolts 27 are respectively put on the outer side of the cross arm 3, both end portions of the U-bolts 27 are respectively passed through the bolt hole 29 of the jack 1, and the lock nuts 28 are respectively screwed on both end portions of the U-bolts 27.

As shown in fig. 3 and 11, the paired pipe sockets 4 are fixedly connected by welding with solder 60, the pipe bodies 7 are respectively disposed on the paired brackets, and the paired brackets are movably inserted into the paired pipe sockets 4 through the pipe bodies 7, and the specific structure of the bracket is as follows: the whole round-head rectangular frame that is corresponding with the motorcycle wheel of bracket forms, and mated bracket is including first U-shaped pipe 5 and second U-shaped pipe 11 respectively, body 7 is located first U-shaped pipe 5, is provided with grafting pipe 12 respectively at the both ends of second U-shaped pipe 11, and second U-shaped pipe 11 is planted in the tip of first U-shaped pipe 5 through grafting pipe 12, has seted up first pinhole 13 on first U-shaped pipe 5, has seted up on grafting pipe 12 and is row's regulation hole 14, is provided with locking mechanical system 15 corresponding with first pinhole 13 and regulation hole 14 on first U-shaped pipe 5, is provided with catch 25 on first U-shaped pipe 5 and second U-shaped pipe 11 respectively. An anti-rotation mechanism and a positioning mechanism 18 are respectively arranged between the pipe body 7 and the pipe sleeve 4, and the specific structure of the anti-rotation mechanism and the connection relationship between the anti-rotation mechanism and the pipe body 7 and the pipe sleeve 4 are as follows: as shown in fig. 12, the rotation preventing mechanism includes rotation preventing blocks 26, the rotation preventing blocks 26 are respectively and fixedly installed on the paired pipe bodies 7, the paired rotation preventing blocks 26 respectively abut against the paired pipe sleeves 4, and the rotation preventing blocks 26 are used for preventing the paired brackets in fig. 1 from being turned over downwards, that is, the pipe bodies 7 on the brackets in fig. 12 can only rotate counterclockwise but cannot rotate clockwise.

The specific structures of the locking mechanism 15 and the positioning mechanism 18, the corresponding connection relations between the locking mechanism 15 and the first U-shaped tube 5, the first pin hole 13 and the adjusting hole 14, and the corresponding connection relations between the positioning mechanism 18 and the tube sleeve 4, the second pin hole 16 and the locking hole 17 are as follows: as shown in fig. 11 and 13, the locking mechanism 15 and the positioning mechanism 18 are both spring lock pins, each spring lock pin is composed of a bracket 19, a pin rod 20 and a first pressure spring 24, a through hole 21 is formed in the bracket 19, a pin head 22 and a limit end 23 are respectively arranged at two end portions of the pin rod 20, the pin rod 20 is inserted into the through hole 21, the first pressure spring 24 is sleeved on the pin rod 20, two end portions of the first pressure spring 24 respectively abut against the pin head 22 and the bracket 19, and the limit end 23 abuts against the bracket 19. As shown in fig. 11, the bracket 19 of the locking mechanism 15 is fixedly mounted 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 adjusting hole 14 of the insertion tube 12. As shown in fig. 13, the bracket 19 of the positioning mechanism 18 is fixedly mounted on the pipe sleeve 4, the pipe sleeve 4 is provided with a second pin hole 16, the pipe body 7 is provided with a lock hole 17, and the pin head 22 of the positioning mechanism 18 is inserted into the second pin hole 16 of the pipe sleeve 4, and the pin head 22 corresponds to the lock hole 17 of the pipe body 7.

As shown in fig. 1 and 2, the cylinder 2 is sleeved outside the jack 1, a lightening hole 57 is formed in the cylinder 2, the jack 1 is a hydraulic jack, and a second avoiding groove 59 corresponding to a control rod 58 of the jack 1 is formed in the cylinder 2. The plunger 8 of the jack 1 is fixedly connected with the cylinder 2, and the paired pipe sleeves 4 are fixedly connected with the cylinder 2 and fixedly connected in the following manner: as shown in fig. 1 and 3, the upper end of the supporting rod 53 is fixedly connected with the cylinder 2, the bottom bracket 54 is fixedly connected with the paired pipe sleeves 4, the lower end of the supporting rod 53 is fixedly connected with the bottom bracket 54 through a connecting bolt 55 and a connecting nut 56, and the supporting rods 53 are respectively located on the front side and the rear side of the jack 1. The paired sleeves 4 are located below the cross arm 3, and as shown in fig. 10, paired side plates 61 are provided at the bottom of the cross arm 3, and the paired side plates 61 are located on both sides of the sleeves 4, respectively. The locking mechanisms are respectively arranged between the paired pipe sleeves 4 and the cross arms 3, and the specific structure of the locking mechanisms and the connection relationship between the locking mechanisms and the pipe sleeves 4 and the cross arms 3 are as follows: as shown in fig. 8 and 9, the latch mechanism includes a latch 10 and a latch hook 31, the latch 10 includes a frame 32, a retaining ring 33, an O-shaped spacer 34, a second compression spring 35 and a handle 36, two ends of the cross arm 3 are respectively provided with a support 37, the handle 36 is hinged with the support 37 through a first pivot 38, the frame 32 is hinged with the handle 36 through a second pivot 39, an end of the frame 32 is provided with a through slot 40, two sides of the frame 32 are respectively provided with a guide slot 41, the retaining ring 33 is provided with a connecting rod 42, the connecting rod 42 is inserted into the through slot 40 of the frame 32, the connecting rod 42 is provided with a limit rod 43, two ends of the limit rod 43 are movably clamped in the guide slot 40, the second compression spring 35 is sleeved on the connecting rod 42, two ends of the second compression spring 35 respectively abut against the limit rod 43 and the frame 32, the O-shaped spacer 34 is welded and fixed at the bottom of the retaining ring 33, first avoidance grooves 44 are respectively formed at two end parts of the cross arm 3, the locking hooks 31 are respectively and fixedly installed on the paired pipe sleeves 4, the locking hooks 31 respectively penetrate through the first avoidance grooves 44 of the cross arm 3, and the buckle lock 10 is hung and buckled on the locking hooks 31 through the retaining ring 33 and the O-shaped cushion block 34.

The pressure plate 6 is arranged on the cylinder body 2 through the lifting mechanism, the shape of the pressure plate 2 is matched with that of a saddle of the motorcycle, and the specific structure of the lifting mechanism and the connection relation between the pressure plate 6 and the cylinder body 2 are as follows: as shown in fig. 4 and 5, the lifting mechanism includes a screw 45, a swing rod 46, a connection sleeve 47 and a thread sleeve 48, one end of the swing rod 46 is hinged to the barrel 2 through a third pivot 49, the thread sleeve 48 is fixedly mounted on the other end of the swing rod 46, the screw 45 is rotatably mounted in the thread sleeve 48, a handle 50 is arranged at the upper end of the screw 45, the connection sleeve 47 is fixedly mounted on the pressing plate 6 through a connection frame 51, a limiting plate 52 is arranged at the lower end of the screw 45, and the screw 45 is movably clamped in the connection sleeve 47 through the limiting plate 52.

The utility model discloses an on-vehicle bracket of motorcycle need fix its installation on the back anticollision roof beam of car earlier before using, and the fixed mode of concrete installation is as follows: a longitudinal support beam 62 is fixedly arranged on a rear anti-collision beam of the automobile, the longitudinal support beam 62 penetrates through the space between the pair of limiting frames 30, the U-shaped bolt 27 and the locking nut 28 are screwed, and the longitudinal support beam 62 is clamped and fixed through the bottom of the jack 1 and the cross arm 3. When the motorcycle needs to be loaded and fixed on the motorcycle-mounted bracket, the hasp lock 10 and the lock hook 31 are unlocked, the plunger 8 of the jack 1 is lowered through the control rod 58 of the jack 1, the bracket is lowered to the ground, then the motorcycle is pushed to the bracket, two wheels of the motorcycle are just positioned in the paired bracket, then the cylinder body 2 is controlled to be jacked up through the control rod 58, the length of the bracket is shorter than the diameter of the motorcycle wheels, so that the paired bracket can be clamped and sleeved on the wheels of the motorcycle in the lifting process, the motorcycle is lifted after the bracket is clamped and sleeved on the wheels of the motorcycle, when the cylinder body 2 is lifted to the highest position, the hasp lock 10 and the lock hook 31 are locked, the lock ring 25 can be used for fixedly penetrating a binding rope, the motorcycle can be bound and reinforced through the binding rope, and then the swing rod 46 is rotated around the third pivot 49, the pressing plate 6 is moved to the position right above the saddle of the motorcycle, and then the screw 45 is rotated through the handle 50, so that the pressing plate 6 moves downwards to press and fix the saddle of the motorcycle, and the motorcycle is loaded and fixed on the motorcycle-mounted bracket. The pipe body 7 on the bracket can move in a telescopic way along the axial direction of the pipe sleeve 4, thereby being suitable for the loading and consignment requirements of motorcycles with different wheelbases. After the pin head 22 of the locking mechanism 15 is pulled out of the adjusting hole 14 of the inserting 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 requirements of motorcycles with different tire sizes. When a motorcycle is not supported on the motorcycle-mounted bracket, the bracket in fig. 1 can be upwards rotated by 90 degrees, as shown in fig. 13, the pipe body 7 is driven to rotate by 90 degrees anticlockwise when the bracket rotates, so that the lock hole 17 is overlapped with the second pin hole 16, the pin head 22 of the positioning mechanism 18 is clamped into the lock hole 17 at the moment, the pipe body 7 and the bracket are locked, and the bracket is folded to reduce the occupied space.

Claims (10)

1. The motorcycle-mounted bracket is characterized in that: the lifting jack comprises a lifting jack, a cylinder body, cross arms, paired pipe sleeves, paired brackets and a pressing plate, wherein the cross arms are fixedly installed at the bottom of the lifting jack, the paired pipe sleeves are fixedly connected, pipe bodies are respectively arranged on the paired brackets, the paired brackets are respectively movably arranged in the paired pipe sleeves in a penetrating mode 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 on the outer side of the lifting jack, a plunger of the lifting jack is fixedly connected with the cylinder body, the paired pipe sleeves are located below the cross arms, locking mechanisms are respectively arranged between the paired pipe sleeves and the cross arms, and the pressing plate is installed on the cylinder body through a lifting mechanism.

2. A motorcycle on-board carriage as claimed in claim 1, characterized in that: the bracket is integrally in a round-head rectangular frame shape, the paired brackets are respectively composed of a first U-shaped pipe and a second U-shaped pipe, the pipe body is located on the first U-shaped pipe, inserting pipes are respectively arranged at two ends of the second U-shaped pipe, the second U-shaped pipe is inserted into the end portion of the first U-shaped pipe through the inserting pipes, a first pin hole is formed in the first U-shaped pipe, adjusting holes which are arranged in rows are formed in the inserting pipes, a locking mechanism corresponding to the first pin hole and the adjusting holes is arranged on the first U-shaped pipe, and locking rings are respectively arranged on the first U-shaped pipe and the second U-shaped pipe.

3. A motorcycle on-board carriage as claimed in claim 2, characterized in that: the locking mechanism and the positioning mechanism are spring lock pins, each spring lock pin comprises a support, a pin rod and a first pressure spring, through holes are formed in the supports, pin heads and limiting ends are arranged at two ends of each pin rod respectively, each pin rod penetrates through the through hole, each first pressure spring is sleeved on the corresponding pin rod, two ends of each first pressure spring respectively abut against the corresponding pin head and the corresponding support, the limiting ends abut against the corresponding supports, the supports of the locking mechanism are fixedly mounted on the corresponding first U-shaped tubes, the pin heads of the locking mechanism are inserted into the first pin holes of the corresponding first U-shaped tubes and the adjusting holes of the corresponding inserting tubes, the supports of the positioning mechanism are fixedly mounted on the corresponding tube sleeves, second pin holes are formed in the corresponding tube sleeves, lock holes are formed in the corresponding tube bodies, and the pin heads of the positioning mechanism are inserted into the second pin holes of the corresponding tube bodies.

4. A motorcycle on-board carriage as claimed in claim 3, characterized in that: the anti-rotation mechanism comprises anti-rotation blocks, the anti-rotation blocks are respectively and fixedly installed on paired pipe bodies, and the paired anti-rotation blocks are respectively abutted against paired pipe sleeves.

5. A motorcycle on-board carriage as claimed in claim 4, characterized in that: the lifting jack is characterized by further comprising paired U-shaped bolts and locking nuts, bolt holes are formed in the bottom of the lifting jack, paired limiting frames are arranged on the cross arm, the paired U-shaped bolts are respectively sleeved on the outer side of the cross arm, two end portions of each U-shaped bolt penetrate through the bolt holes of the lifting jack respectively, and the locking nuts are respectively screwed at two end portions of each U-shaped bolt.

6. A motorcycle on-board carriage as claimed in claim 5, characterized in that: the lock catch mechanism comprises a buckle lock and a lock hook, the buckle lock comprises a frame, a buckle ring, an O-shaped cushion block, a second pressure spring and a handle, two ends of the cross arm are respectively provided with a support, the handle is hinged with the support through a first pivot, the frame is hinged with the handle through a second pivot, the end part of the frame is provided with a through groove, two side parts of the frame are respectively provided with a guide groove, the buckle ring is provided with a connecting rod which penetrates through the through groove of the frame, the connecting rod is provided with a limit rod, two end parts of the limit rod are movably clamped in the guide grooves, the second pressure spring is sleeved on the connecting rod, two end parts of the second pressure spring are respectively abutted against the limit rod and the frame, the O-shaped cushion block is welded and fixed at the bottom of the buckle ring, two end parts of the cross arm are respectively provided with a first avoiding groove, the lock hooks are respectively and fixedly installed on the paired pipe sleeves, and the, the hasp lock is hung and buckled on the lock hook through a retaining ring and an O-shaped cushion block.

7. A motorcycle on-board carriage as claimed in claim 6, characterized in that: elevating system is including screw rod, pendulum rod, adapter sleeve and swivel nut, one end of pendulum rod is articulated with the barrel through the third pivot, and swivel nut fixed mounting is on another tip of pendulum rod, and the screw rod is put in the swivel nut soon, is provided with the handle in the upper end of screw rod, and the adapter sleeve passes through link fixed mounting on the clamp plate, is provided with the limiting plate under the screw rod, and the screw rod passes through limiting plate activity card and puts in the adapter sleeve.

8. A motorcycle on-board carriage as claimed in claim 7, characterized in that: the lifting jack is characterized by further comprising a supporting rod and a bottom supporting seat, the upper end of the supporting rod is fixedly connected with the barrel, the bottom supporting seat is fixedly connected with the paired pipe sleeves, the lower end of the supporting rod is fixedly connected with the bottom supporting seat through a connecting bolt and a connecting nut, and the supporting rod is located on the front side and the rear side of the lifting jack respectively.

9. A motorcycle on-board carriage as claimed in any one of claims 1 to 8, characterized in that: the jack is a hydraulic jack, a second avoidance groove corresponding to a control rod of the jack is formed in the cylinder, and lightening holes are formed in the cylinder.

10. A motorcycle on-board carriage as claimed in any one of claims 1 to 8, characterized in that: the paired pipe sleeves are fixedly connected through welding flux in a welding mode, paired side plates are arranged at the bottom of the cross arm, and the paired side plates are located on two sides of the pipe sleeves respectively.

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