CN214463036U - Cross sliding type automobile carrier - Google Patents

Abstract

The utility model provides a cross sliding type automobile carrier, which comprises a bottom frame and an upper frame, wherein the bottom frame comprises a middle axle and walking bridges arranged on two sides of the middle axle, the walking bridges can drive the bottom frame to transversely enter the bottom of an automobile body, and the two walking bridges are respectively arranged on two sides of the bottom of the automobile body; the upper frame comprises an upper frame capable of moving up and down relative to the middle axle and two supporting mechanisms fixed at two ends of the upper frame and capable of extending out in the front-back direction, and the supporting mechanisms can support the bottoms of the wheels. The utility model provides a sideslip formula automobile carrier's advantage lies in: the transverse carrying of the vehicle is realized, and the parking device is suitable for parking places with transverse parking spaces.

Description

Cross sliding type automobile carrier

Technical Field

The utility model relates to an automobile carrier technical field especially relates to a sideslip formula automobile carrier.

Background

With the increase of the automobile holding capacity, the problem of difficult parking is more obvious, the stereo garage is produced at the same time, and an automobile carrier is introduced to assist parking in the intelligent stereo garage, so that the carrier can finish the automatic parking and taking of the automobile; in the prior art, all automobile carriers enter the lower part of an automobile body along the longitudinal direction of the automobile to lift and shift the automobile, for example, a nut-screw type automobile carrier disclosed in the invention patent with the publication number of CN110282575B, the automobile carrier requires that the width of a channel between two rows of parking spaces is long enough to meet the walking requirement of the carrier, so that the waste area is large; and in circular stereo garage, vertical carrier can lead to the transport platform diameter of centre great at first, and the car generally arranges in the transport platform circumferencial direction with dispersing the form, leads to whole circular garage's diameter size great, has influenced stereo garage's popularization and use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a can follow the sideslip formula automobile carrier that transversely gets into automobile body below and lateral shifting car is provided.

The utility model discloses a solve above-mentioned technical problem through following technical scheme: a cross sliding type automobile carrier comprises a bottom frame and an upper frame, wherein the bottom frame comprises a middle bridge and walking bridge frames arranged on two sides of the middle bridge, the walking bridge frames can drive the bottom frame to transversely enter the bottom of an automobile body, and the two walking bridge frames are respectively arranged on two sides of the bottom of the automobile body; the upper frame comprises an upper frame capable of moving up and down relative to the middle axle and two supporting mechanisms fixed at two ends of the upper frame and capable of extending out in the front-back direction, and the supporting mechanisms can support the bottoms of the wheels.

The utility model discloses a walking crane span structure supports the vehicle bottom along transverse motion, through supporting mechanism and wheel cooperation, lifts up the vehicle through lifting of last frame, then along the lateral shifting vehicle through the walking crane span structure, carries the assigned position with the vehicle, has realized the horizontal transport of vehicle from this, is applicable to the parking area who sets up horizontal parking stall.

Preferably, the walking bridge frame comprises a walking chassis, the middle bridge comprises two fixing columns, two ends of each fixing column are respectively fixed with one end of the bottom of each walking chassis, and the fixing columns and the walking chassis are spliced to form a rectangular frame.

Preferably, two sides of the walking chassis are respectively provided with a walking wheel which is axially parallel to the walking chassis, a wheel shaft of the walking wheel is fixed on end faces of two ends of the walking chassis, a walking gear is arranged on the wheel shaft, a motion motor is fixed on the walking chassis, the motion motor is connected with a driving rod through a walking chain, and two ends of the driving rod are respectively fixed with a driving gear which is meshed with the walking gear.

Preferably, the two ends of the walking chassis extend outwards along the length direction and are fixed with protective sleeves respectively, each protective sleeve comprises a side protective plate fixedly connected with the two sides of the end face of the walking chassis and an end face protective plate connected with the two side protective plates, the walking wheels are located in the protective sleeves, guide wheels are fixed on the end face protective plates, and the axial directions of the guide wheels are fixed along the vertical direction.

Preferably, the upper frame includes the board of lifting of both sides and connects two connecting plates of two boards of lifting, be provided with two bearing frames along length direction on the walking chassis, be fixed with a lead screw on the bearing frame, the lead screw sets up along vertical direction, it stretches the board to lift to be provided with two overhangs on the board, overhang respectively with a lead screw spiro union cooperation, four lead screw synchronous rotations.

Preferably, a driving platform is fixedly arranged between the two fixing columns, a lifting motor is fixedly arranged on the driving platform in the horizontal direction, a chain wheel located below the driving platform is connected to the lifting motor through a worm and gear structure, chain wheels are coaxially fixed at the lower end of the screw rod, and lifting chains are wound on the five chain wheels.

Preferably, be close to on the side backplate of well bridge one side along vertical direction be fixed with the direction track, the terminal surface is provided with a vertical fixed guide roll respectively around the direction track, the board of lifting towards one side of side backplate be fixed with respectively with two guide roll complex leading wheels, the axial of leading wheel is perpendicular with the length direction of the board of lifting, the wheel face indent and the guide roll cooperation of leading wheel.

Preferably, the supporting mechanism comprises sliding rods in sliding fit with the lifting plates on the two sides, a limiting part is respectively fixed at the end parts of the two sliding rods facing the wheel, the two limiting parts are fixed at the inner sides of the two sliding rods, the end surfaces of the two sliding rods are parallel to the connecting plates, the two limiting parts are connected through a connecting part, a telescopic platform is fixed between the two connecting plates, two lead screw nut assemblies are fixed on the telescopic platform, a driving lead screw of each lead screw nut assembly is respectively connected with the connecting parts of the front supporting mechanism and the rear supporting mechanism, a telescopic motor is fixed on the telescopic platform along the horizontal direction, an output shaft of the telescopic motor is connected with a belt wheel below the telescopic platform through a worm gear transmission, the lead screw nut assemblies are also provided with belt wheels below the telescopic platform, the three belt wheels are connected through a transmission belt in a winding manner, the telescopic motor rotates to drive the driving lead screw of the lead screw nut assemblies to longitudinally stretch along the vehicle body, the limiting part can extend out towards the end face of the wheel and is abutted against the wheel.

Preferably, connecting portion include with the perpendicular chamber that holds that stretches out to the wheel direction of the spacing portion in both sides, two tip that hold the chamber are connected along the horizontal direction and are formed the power chamber, hold the armful arm lock that has perpendicular spacing portion terminal surface that the intracavity holds, it can stretch out with the terminal surface parallel of spacing portion to embrace the arm lock, spacing portion with embrace the arm lock respectively with the wheel face contact around the wheel.

Preferably, the connecting part is internally provided with a driving arm, the driving arm comprises two follower rods parallel to the longitudinal direction of the vehicle body, the ends of the two follower rods close to one side of the vehicle wheel are connected through a power rod, one side of the power rod close to the connecting plate is connected with a rotating rod perpendicular to the connecting plate, the follower rods are accommodated in the accommodating cavity, the power rod is accommodated in the power cavity, the rotating rod can freely rotate relative to the power rod, and the surface of the rotating rod is provided with external threads;

a clamping motor is fixed at one end of the power cavity close to the upper frame, a clamping gear is fixed at the power end of the clamping motor, the clamping gear is in transmission connection with a rotating gear, and a nut in threaded fit with the rotating rod is fixed on the rotating gear;

the outer side face of the servo rod is hinged to a connecting rod, a sliding block perpendicular to the axial direction of the holding arm is arranged at the end of the holding arm, a sliding groove is longitudinally formed in the containing cavity along the automobile body, a holding arm shaft capable of sliding and rotating along the sliding groove is arranged on the sliding block, the sliding block is hinged and matched with the connecting rod with one end connected with the holding arm, and a gap exists between one end, facing the power rod, of the sliding groove and the front end of the containing cavity.

The utility model provides a sideslip formula automobile carrier's advantage lies in: the vehicle is supported by the supporting mechanism and the wheels in a matched mode through the walking bridge frame moving to the bottom of the vehicle along the transverse direction, the vehicle is lifted through the lifting of the upper frame, then the vehicle is moved to the specified position through the walking bridge frame moving along the transverse direction, and therefore the vehicle is transversely moved and is suitable for parking places with transverse parking spaces. Realize the synchronous lift of two boards of lifting through screw-nut and worm gear, reduce the whole height of carrier, improve stability, prevent unexpected slip, carry out lateral motion's direction through the anticollision wheel, carry out the direction of lifting motion through guide roll and leading wheel, embrace the arm lock through collapsible setting and make things convenient for supporting mechanism to stretch out with the wheel cooperation, can support fixedly to both sides around the vehicle again, improve the security.

Drawings

Fig. 1 is a schematic view of a cross-car carrier according to an embodiment of the present invention;

fig. 2 is a schematic view of an undercarriage of a cross-car carrier according to an embodiment of the present invention;

fig. 3 is a schematic view of a traveling bridge of a cross-car carrier according to an embodiment of the present invention;

fig. 4 is a schematic view of an upper rack of a cross-car carrier according to an embodiment of the present invention;

fig. 5 is a schematic view of a guide roller and a guide wheel of a cross-car carrier according to an embodiment of the present invention;

fig. 6 is a schematic view illustrating a contracted state of the clamp arms of the cross-sliding vehicle carrier according to an embodiment of the present invention;

fig. 7 is a schematic view illustrating an expanded state of the clamp arms of the cross-sliding type vehicle carrier according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described below in detail and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The structure of the carrier is introduced by taking the direction of the vehicle body as a reference in the embodiment, if no special description is provided, the side face refers to the direction of the side face of the vehicle body, and the end face refers to the front and rear directions of the vehicle body, as shown in fig. 1, the embodiment provides a cross sliding type vehicle carrier, which comprises a chassis (not shown) and an upper frame (not shown), wherein the chassis comprises a middle axle 1 and walking bridges 2 arranged on two sides of the middle axle 1, the walking bridges 2 can drive the chassis to transversely enter the bottom of the vehicle body from between front and rear wheels of the vehicle, the two walking bridges 2 are respectively arranged on two sides of the bottom of the vehicle body, the upper frame comprises an upper frame 3 capable of moving up and down relative to the middle axle 1 and two supporting mechanisms 4 fixed at two ends of the upper frame 3 and capable of extending out in the front and rear directions, and the supporting mechanisms 4 can support the bottoms of the wheels.

The embodiment supports the vehicle through the cooperation of the supporting mechanism 4 and the wheels by moving the traveling bridge 2 to the bottom of the vehicle along the transverse direction, lifts the vehicle through the lifting of the upper frame 3, and then carries the vehicle to a specified position through moving the vehicle along the transverse direction by moving the traveling bridge 2, so that the transverse carrying of the vehicle is realized, and the traveling bridge is suitable for parking places with transverse parking spaces.

Referring to fig. 2, the intermediate axle 1 includes two fixing columns 11, the traveling bridge frame 2 includes a traveling chassis 21, two ends of each fixing column 11 are respectively fixed to one end of the bottom of each traveling chassis 21, and the fixing columns 11 and the traveling chassis 21 are spliced to form a rectangular frame.

Referring to fig. 3, two sides of the traveling chassis 21 are respectively provided with a traveling wheel 22, the axial direction of which is parallel to the length direction of the traveling chassis 21, wheel shafts of the traveling wheels 22 are fixed on end surfaces of two ends of the traveling chassis 21, the wheel shafts are provided with traveling gears 221, the traveling chassis 21 is fixed with a moving motor 23, the moving motor 23 is connected with a driving rod 24 through a traveling chain 231, two ends of the driving rod 24 are respectively fixed with driving gears 241 engaged with the traveling gears 221, so that the traveling wheels 22 on two sides are driven to synchronously rotate through the moving motor 23; the motion motor 23 is arranged along the horizontal direction to reduce the height of the whole carrier, so that the vehicle can conveniently get in and out of the bottom of the vehicle body.

The walking chassis 21 both ends respectively along length direction outside extension be fixed with protective sheath 25, protective sheath 25 includes respectively with walking chassis 21 terminal surface both sides fixed connection's side backplate 251 and the terminal surface backplate 252 of connecting two side backplate 251, the walking wheel 22 is in protective sheath 25, is fixed with crashproof wheel 26 on the terminal surface backplate 252, crashproof wheel 26's axial is fixed along vertical direction. Since the carrier provided by the embodiment enters the lower part of the vehicle body from the side, in order to prevent the vehicle body from being scratched, a sedimentation channel for the chassis to pass through needs to be arranged, and the running of the walking wheels 22 can be guided and protected by arranging the anti-collision wheels 26.

Referring to fig. 4, the upper frame 3 includes the lifting plates 31 of both sides and two connecting plates 32 of connecting two lifting plates 31, the tip of connecting plate 32 is fixed in the bottom of lifting plates 31, and connecting plate 32 and lifting plates 31 amalgamation becomes the rectangle structure, and the relative connecting plate 32 of both ends of lifting plates 31 is outside outstanding, and fig. 3 that combines again, be provided with two bearing frames 27 along length direction on the walking chassis 21, be fixed with a lead screw 271 on the bearing frame 27, the lead screw 271 sets up along vertical direction, be provided with two overhang boards 311 on the lifting plates 31, overhang board 311 respectively with a lead screw 271 spiro union cooperation, thereby four lead screw 271 synchronous rotations make two lifting plates 31 go up and down in step.

Referring to fig. 2 again, a driving platform 12 is fixedly disposed between the fixing posts 11, a lifting motor 13 is fixed on the driving platform 12, an output shaft of the lifting motor 13 is disposed along a horizontal direction, so as to reduce the height, an output end of the lifting motor 13 is connected to a sprocket (not shown) disposed below the driving platform 12 through a worm and gear structure, a sprocket 272 is coaxially fixed at a lower end of the screw rod 271, a lifting chain 14 is wound on five sprockets 272, the lifting chain 14 is driven by the lifting motor 13 to rotate, so that the five sprockets 272 rotate synchronously, and finally the four screws 271 rotate synchronously, when two lifting plates 31 lift synchronously, in this embodiment, the lifting motion is driven by screw thread cooperation, the screw thread has self-locking capability, so as to prevent the lifting plates 31 from falling, further, the power of the lifting motor 13 is transmitted to the sprocket 272 through the worm and gear structure, the power direction can be switched, and the stability of the lifting plate 31 can be kept by means of the self-locking function of the worm gear structure.

Referring to fig. 3 again, a guide rail 28 is fixed to the side guard 251 near the side of the middle bridge 1; referring to fig. 5, the front and rear end surfaces of the guide rail 28 are respectively provided with a guide roller 281 fixed in a vertical direction; referring to fig. 4, a guide wheel 282 is fixed on one side of the lifting plate 31 facing the side guard 251, and is respectively in rolling fit with two guide rollers 281, an axial direction of the guide wheel 282 is perpendicular to a length direction of the lifting plate 31, and a wheel surface of the guide wheel 282 is recessed to fit with the guide rollers 282, so that the guide rollers 281 at two ends of the guide roller table 28 are clamped by the guide rollers 282 at two ends to guide the vertical movement of the lifting plate 31.

Referring to fig. 4 again, the supporting mechanism 4 includes a sliding rod 41 in sliding fit with the lifting plates 31 on both sides, the side of the lifting plate 31 has a sliding track 33, a sliding key 411 is fixed on the sliding rod 41 to protrude to one side of the lifting plate 31, the sliding key 411 slides in the sliding track 33, the sliding tracks 33 used by the supporting mechanisms 4 on both ends are mutually parallel and staggered, so that the two supporting mechanisms 4 are overlapped and contracted on the lifting plate 31, and the length of the lifting plate 31 is reduced.

The end parts of the two slide bars 41 facing the wheel are respectively fixed with a limiting part 42, the limiting parts 42 and the slide bars 42 are vertically fixed at the inner sides of the two slide bars 41, the end surfaces of the limiting parts 42 are parallel to the connecting plates 32, the two limiting parts 42 are connected through the connecting parts 43, the telescopic platform 34 is fixed between the two connecting plates 32, the telescopic platform 34 is fixed with two lead screw nut assemblies 35, the driving lead screw 351 of the lead screw nut assemblies 35 is respectively connected with the connecting parts 43 of the front and rear supporting mechanisms 4, the telescopic platform 34 is fixed with the telescopic motor 36 along the horizontal direction, the output shaft of the telescopic motor 36 is connected with a belt wheel (not shown) below the telescopic platform 34 through worm and gear transmission, the lead screw nut assemblies 35 are also provided with belt wheels below the telescopic platform 34, and the three belt wheels are wound and connected through a transmission belt (not shown), the telescopic motor 36 rotates to drive the driving screw 351 of the screw nut assembly 35 to longitudinally extend along the vehicle body, and the end face of the limiting part 42 facing the wheel can extend out to be abutted against the wheel, so that four limiting parts 42 of the front and rear supporting mechanisms 4 are respectively abutted against four tires, and the vehicle is integrally lifted after the upper frame 3 is lifted.

Furthermore, the connecting portion 43 includes accommodating cavities 431 extending out of the limiting portions 42 on the two sides in the direction perpendicular to the wheel, the end portions of the two accommodating cavities 431 are connected in the horizontal direction to form a power cavity 432, the accommodating cavities 431 accommodate holding arms 44 perpendicular to the end surfaces of the limiting portions 42, the holding arms 44 can extend out to be parallel to the end surfaces of the limiting portions 42, and the limiting portions 42 and the holding arms 44 are respectively in contact with the front and rear wheel surfaces of the wheel; thereby supporting the front and rear wheel faces of the wheel respectively and preventing accidental sliding.

The connecting portion 43 accommodates a driving arm 45, the driving arm 45 comprises two follower rods 451 parallel to the longitudinal direction of the vehicle body, the ends of the follower rods 451 far away from the upper frame 3 are connected through power rods 452, a rotating rod 461 of the vertical connecting plate 32 is connected to one side of the power rods 452 close to the upper frame 3, the follower rods 451 are accommodated in the accommodating cavities 431, the power rods 452 are accommodated in the power cavities 432, the rotating rods 461 can freely rotate relative to the power rods 452, and the surfaces of the rotating rods 461 are provided with external threads; one end that power chamber 432 is close to upper ledge 3 is fixed with and embraces the clamp motor 46, the power end of embracing the clamp motor 46 is fixed with and embraces the clamp gear (not shown), it connects transmitting gear (not shown) to embrace the gear transmission, transmitting gear is last be fixed with dwang 461 spiro union complex nut (not shown) to through embracing the rotation drive dwang 461 concertina movement that presss from both sides motor 46, realize the flexible of the relative power chamber 432 of power pole 452.

A connecting rod 453 is hinged to the outer side surface of the follower rod 451, a sliding block 441 perpendicular to the axial direction of the gripper arm 44 is arranged at the end of the gripper arm 44, a sliding groove 432 is arranged on the accommodating cavity 431 along the longitudinal direction of the vehicle body, a gripper arm shaft 442 capable of sliding and rotating along the sliding groove 432 is arranged on the sliding block 441, one end of the sliding block 441 connected with the gripper arm 44 is hinged to the connecting rod 453, and a gap exists between one end of the sliding groove 432 facing the power rod 452 and the front end of the accommodating cavity 431.

Referring to fig. 6, in an initial state, the clipping arm 44 and the follower bar 451 are retracted in the accommodating cavity 431 along the longitudinal direction of the vehicle body, the connecting rod 453 is parallel to the clipping arm 451 and the clipping arm 44, when the transmission rod 461 is driven by the clipping motor 46 to move linearly, the follower bar 451 extends along the longitudinal direction of the vehicle body along with the power rod 452, the clipping arm 44 also extends along the longitudinal direction of the vehicle body under the pushing of the connecting rod 453, the clipping arm shaft 442 slides linearly in the sliding slot 432, when the clipping arm shaft 442 abuts against the end of the sliding slot 432 near the power rod 452, the sliding block 441 can not extend forward any more, the follower bar 451 continues to move linearly, under the action of the connecting rod 453, the clipping arm 44 rotates relative to the clipping arm shaft 442 to be parallel to the end face of the limiting portion 42, referring to fig. 7, finally, the clipping arm 44 is locked at the transverse position of the vehicle body, cooperates with the limiting portion 42 to support the front and rear wheel faces of the wheel, the clipping motor 46 drives the transmission rod 461 through the screw nut structure, can be self-locked to prevent the holding arm clamp 44 from rotating and falling off.

Spacing portion 42 and embrace arm lock 44's opposite face sets up respectively to the inclined plane with wheel face adaptability complex to when spacing portion 43 stretches out, can be better with the wheel contact cooperation, when the both sides wheel is not adjusted well and is parked, can push forward the wheel, prevent that the wheel from droing because of deflecting from spacing portion 42 and embracing between the arm lock 44.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. A cross-sliding vehicle carrier, comprising: the chassis comprises a middle bridge and walking bridge frames arranged on two sides of the middle bridge, the walking bridge frames can drive the chassis to transversely enter the bottom of a vehicle body, and the two walking bridge frames are respectively arranged on two sides of the bottom of the vehicle body; the upper frame comprises an upper frame capable of moving up and down relative to the middle axle and two supporting mechanisms fixed at two ends of the upper frame and capable of extending out in the front-back direction, and the supporting mechanisms can support the bottoms of the wheels.

2. The cross-car carrier of claim 1, wherein: the walking bridge frame comprises a walking chassis, the middle bridge comprises two fixing columns, two ends of each fixing column are respectively fixed with one end of the bottom of each walking chassis, and the fixing columns and the walking chassis are spliced to form a rectangular frame.

3. A cross-car carrier as defined in claim 2, wherein: the walking mechanism is characterized in that two sides of the walking chassis are respectively provided with a walking wheel which is axially parallel to the walking chassis, wheel shafts of the walking wheels are fixed on end faces of two ends of the walking chassis, the wheel shafts are provided with walking gears, the walking chassis is fixedly provided with a motion motor, the motion motor is connected with a driving rod through a chain, and two ends of the driving rod are respectively fixedly provided with a driving gear which is meshed with the walking gears.

4. A cross-car carrier as defined in claim 3, wherein: the walking chassis is characterized in that protective sleeves are fixed to the two ends of the walking chassis in an outward extending mode along the length direction respectively, each protective sleeve comprises a side protective plate fixedly connected with the two sides of the end face of the walking chassis and an end face protective plate connected with the two side protective plates respectively, the walking wheels are located in the protective sleeves, anti-collision wheels are fixed on the end face protective plates, and the axial directions of the anti-collision wheels are fixed along the vertical direction.

5. The cross-car carrier of claim 4, wherein: the upper frame includes the board of lifting of both sides and connects two connecting plates of two boards of lifting, be provided with two bearing frames along length direction on the walking chassis, be fixed with a lead screw on the bearing frame, the lead screw sets up along vertical direction, it stretches the board to lift to be provided with two overhangs on the board, overhang respectively with a lead screw spiro union cooperation, four lead screw synchronous rotations.

6. The cross-car carrier of claim 5, wherein: a driving platform is fixedly arranged between the two fixing columns, a lifting motor is fixedly arranged on the driving platform in the horizontal direction, a chain wheel located below the driving platform is connected to the lifting motor through a worm gear structure, chain wheels are coaxially fixed at the lower end of the screw rod, and lifting chains are wound on the five chain wheels.

7. The cross-car carrier of claim 6, wherein: be close to on the side backplate of well bridge one side along vertical direction be fixed with the direction track, the terminal surface is provided with a vertical fixed guide roll respectively around the direction track, the board of lifting is fixed with respectively with two guide roll complex leading wheels towards one side of side backplate, the axial of leading wheel is perpendicular with the length direction of the board of lifting, the wheel face indent and the guide roll cooperation of leading wheel.

8. The cross-car carrier of claim 5, wherein: the support mechanism comprises slide bars which are in sliding fit with the lifting plates on the two sides, the end parts of the two slide bars facing the wheel are respectively fixed with a limiting part, the two limiting parts are fixed at the inner sides of the two slide bars, the end surfaces of the two slide bars are parallel to the connecting plates, the two limiting parts are connected through a connecting part, a telescopic platform is fixed between the two connecting plates, two lead screw nut assemblies are fixed on the telescopic platform, a driving lead screw of each lead screw nut assembly is respectively connected with the connecting parts of the front support mechanism and the rear support mechanism, a telescopic motor is fixed on the telescopic platform along the horizontal direction, an output shaft of the telescopic motor is connected with a belt wheel below the telescopic platform through worm and gear transmission, the lead screw nut assemblies are also provided with belt wheels below the telescopic platform, the three belt wheels are wound and connected through a transmission belt, the telescopic motor rotates the driving lead screw of the lead screw nut assemblies to longitudinally stretch along the vehicle body, the limiting part can extend out towards the end face of the wheel and is abutted against the wheel.

9. The cross-car carrier of claim 8, wherein: connecting portion include with the chamber that holds that the spacing portion of both sides stretches out perpendicularly to the wheel direction, two tip that hold the chamber are connected along the horizontal direction and are formed the power chamber, hold the armful arm lock that has perpendicular spacing portion terminal surface in the intracavity, it can stretch out with the terminal surface parallel of spacing portion to embrace the arm lock, spacing portion with embrace the arm lock respectively with the wheel front and back wheel face contact of wheel.

10. The cross-car carrier of claim 9, wherein: the connecting part is internally provided with a driving arm, the driving arm comprises two follow-up rods parallel to the longitudinal direction of the vehicle body, the ends of the two follow-up rods close to one side of the vehicle wheel are connected through a power rod, one side of the power rod close to the connecting plate is connected with a rotating rod vertical to the connecting plate, the follow-up rods are accommodated in the accommodating cavity, the power rod is accommodated in the power cavity, the rotating rod can freely rotate relative to the power rod, and the surface of the rotating rod is provided with external threads;

a clamping motor is fixed at one end of the power cavity close to the upper frame, a clamping gear is fixed at the power end of the clamping motor, the clamping gear is in transmission connection with a rotating gear, and a nut in threaded fit with the rotating rod is fixed on the rotating gear;

the outer side face of the servo rod is hinged to a connecting rod, a sliding block perpendicular to the axial direction of the holding arm is arranged at the end of the holding arm, a sliding groove is longitudinally formed in the containing cavity along the automobile body, a holding arm shaft capable of sliding and rotating along the sliding groove is arranged on the sliding block, the sliding block is hinged and matched with the connecting rod with one end connected with the holding arm, and a gap exists between one end, facing the power rod, of the sliding groove and the front end of the containing cavity.

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