CN112549867A

CN112549867A - Driving device for wheel damage emergency

Info

Publication number: CN112549867A
Application number: CN202110015335.0A
Authority: CN
Inventors: 朱德隆
Original assignee: Nanjing Fuyoute Trading Co ltd
Current assignee: Nanjing Fuyoute Trading Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-03-26

Abstract

The invention discloses a driving device for wheel breakage emergency, which comprises a main shaft, wherein the upper side of the main shaft is provided with a spline groove and the main shaft extends leftwards and rightwards, the outer side of the main shaft is rotatably connected with a rotating sleeve, the outer side of the rotating sleeve is fixedly provided with a working box which is centrosymmetric with respect to the main shaft, the driving device is used for the vehicle tire breakage emergency, a wheel hub of an automobile can be supported before driving, meanwhile, a tire state detection device is close to the tire to detect the air pressure state of the tire, when the tire of the automobile leaks, corresponding change can be made, the driving device has the function of preventing the wheel hub from being directly grounded, a spare wheel is used for supporting the automobile to run for a section of road by accumulated snow until the automobile runs to a safe position, and the driving device has the function of.

Description

Driving device for wheel damage emergency

Technical Field

The invention relates to the field of automobile driving, in particular to a driving device for wheel breakage emergency.

Background

In the running process of an automobile, the wheel can be subjected to air leakage and damage, and because the conventional wheel is internally provided with a tire pressure monitoring device, there is an understanding of the condition of the tire, but once the vehicle encounters a flat tire, it is likely to cause the possibility of a lateral deviation or even a rollover, for a general wheel leakage, the position of the hub is firstly damaged, the hub can directly support the weight of the vehicle, the wheel hub is extremely easy to damage and deform due to contact with the ground, once the driving position is not beneficial to parking, the vehicle can only continue to drive to a safe position to park, the use of a damaged tire can greatly affect the driving safety, and the conventional emergency driving device for wheel damage does not have the functions of automatically supporting the wheel hub and timely using a spare tire.

Disclosure of Invention

The technical problem is as follows:

whether can automatic support wheel hub and in time use spare child direct influence the effect of treatment, current damaged emergency drive device of wheel does not have the function of automatic support wheel hub and in time use spare child.

In order to solve the problems, the embodiment designs a driving device for emergency of wheel breakage, and the driving device for emergency of wheel breakage of the embodiment comprises a main shaft which is provided with a spline groove at the upper side and extends left and right, a rotating sleeve is rotatably connected to the outer side of the main shaft, a working box which is symmetrical about the center of the main shaft is fixed at the outer side of the rotating sleeve, a working cavity is arranged in the working box, a rotating block which is rotatably connected to the outer side of the rotating sleeve and symmetrical about the center of the main shaft is arranged in the working cavity, a through groove with an upward opening is arranged at one side of the rotating block close to the main shaft, a moving block is slidably connected to the inner wall of the through groove, the moving block is in threaded connection with a threaded shaft which extends front and back, a fixed motor which is fixed at the inner wall of the rear side of the working cavity is rotatably connected to the rear side of the threaded shaft, the chute inner wall is connected with a moving shaft which extends leftwards and rightwards and is connected with the right inner wall of the working chamber in a sliding way, the left side of the moving shaft is provided with three connecting grooves which penetrate through the inner wall of the working chamber and extend towards one side far away from the main shaft and are distributed in an annular array, the inner walls of the connecting grooves are fixed with a fixed box, the inner wall of the fixed box is provided with a fixed cavity which is close to one side of the main shaft and is an inclined side, one side of the fixed cavity inner wall is connected with a supporting shaft which is close to one side of the main shaft and is fixedly connected with the left side of the moving shaft and extends towards one side far away from the main shaft, three steel balls which are distributed in a circumferential array and are mutually abutted are abutted between the outer side of the supporting shaft and the inner wall of the fixed cavity, one side of, the supporting device comprises a supporting shaft, a connecting block and a spare wheel, wherein the connecting block is fixedly abutted to the outer side of a working box on one side, away from a main shaft, of the supporting shaft, the connecting block is provided with a clamping groove, an opening of the clamping groove faces towards one side, away from one side of the main shaft, the opening of the clamping groove is small and close to the opening of one side of the main shaft, the spare wheel is connected to the inner wall of the three clamping grooves in a sliding mode, a supporting device for supporting an automobile tire is arranged on the left side of the main shaft, a driving device for driving and supporting is arranged between.

Preferably, the supporting device comprises a hub rotatably connected to the left side of the main shaft and symmetrical about the center of the main shaft, a tire is fixed on the outer side of the hub, an arc-shaped block which is fixed on the outer side of the main shaft and is symmetrical with the main shaft in the front-back direction is arranged on the right side of the vertical section of the hub, two arc-shaped grooves which are provided with openings facing to one side far away from the main shaft and are symmetrical up and down are arranged in the arc-shaped block, the inner wall of the arc-shaped groove is connected with a sliding block in a sliding way, the right side of the sliding block is provided with a sliding groove, the inner wall of the sliding groove is connected with a moving column in a sliding way, the outer side of the moving column is rotatably connected with idler wheels which are vertically symmetrical relative to the moving column, the right side of the moving column is rotatably connected with two connecting rods which are close to one side of the main shaft and extend to be front-back symmetrical, the two connecting rods are close to one side of the main shaft and are rotatably connected with linking blocks, and the linking blocks are rotatably connected with sliding blocks which are slidably connected with the main shaft and are vertically symmetrical relative to the main shaft.

Preferably, drive arrangement includes fixed connection in the sliding block outside just is located link up the outer ring gear on piece right side, the meshing of outer ring gear outside is connected with interior ring gear, the meshing of interior ring gear outside is connected and is related to the interior ring gear of main shaft centrosymmetric, the meshing of interior ring gear upside is connected with the friction pulley, the friction pulley right side rotates and is connected with driving motor, the driving motor right side be fixed with fixed connection in the main shaft just rotate connect in the fixed block on interior ring gear right side.

Preferably, the detection device comprises a right-angle block fixedly connected to the right side of the moving column at the lower side and positioned at the lower side of the connecting rod, a through cavity with an opening facing the hub and an inclined side at the lower side is arranged in a vertical section of the right-angle block, a sliding column is slidably connected to the inner wall at the upper side of the through cavity, a compression spring is arranged between the right side of the sliding column and the inner wall at the right side of the through cavity, the sliding column is rotatably connected with a downwardly extending rotating shaft, the rotating shaft is in splined connection with two spline sleeves which are vertically symmetrical, rotating sleeves which are centrally symmetrical with respect to the rotating shaft are fixed at the outer sides of the two spline sleeves, a rotating cavity is arranged in the rotating sleeve, a fixing ring fixed at the outer side of the rotating shaft is arranged in the rotating cavity, two linking springs which are vertically symmetrical around the rotating shaft are arranged between the fixing ring, the outer side of the auxiliary spline sleeve is rotatably connected with an inclined plane block which is connected with the inner wall of the inclined side of the through cavity in a sliding mode, and an engaging groove which is provided with an upward opening and is located on the lower side of the rotating shaft is formed in the inclined plane block.

Preferably, the pivot outside is rotated and is connected with sliding connection in lead to the pole that butts that the cavity front and back inner wall just extended right, the butt pole right side is equipped with and is fixed in lead to cavity right side inner wall and be located the inductor of compression spring downside.

The invention has the beneficial effects that: the invention relates to an emergency driving device for vehicle tyre damage, which can enable a wheel hub of an automobile to be supported before driving, simultaneously, a tyre state detection device is close to the tyre to detect the air pressure state of the tyre, when the tyre of the automobile leaks air, the air pressure state can be correspondingly changed, the wheel hub can be prevented from being directly grounded, a spare wheel is used for supporting the automobile to run on a section of road through accumulated snow until the automobile runs to a safe position, and the automobile and personnel can be protected.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an enlarged schematic view of a in fig. 1.

FIG. 3 is a schematic diagram of B-B in FIG. 1.

Fig. 4 is a schematic view of the structure of C-C in fig. 1.

Fig. 5 is an enlarged internal view of the right-angle block of fig. 1.

Fig. 6 is a schematic diagram of the structure of D-D in fig. 5.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The invention relates to a driving device for wheel breakage emergency, which comprises a main shaft 11 which is provided with a spline groove at the upper side and extends leftwards and rightwards, wherein a rotating sleeve 12 is rotatably connected to the outer side of the main shaft 11, a working box 13 which is symmetrical with respect to the center of the main shaft 11 is fixed at the outer side of the rotating sleeve 12, a working chamber 61 is arranged in the working box 13, a rotating block 18 which is rotatably connected to the outer side of the rotating sleeve 12 and symmetrical with respect to the center of the main shaft 11 is arranged in the working chamber 61, a through groove 19 with an upward opening is arranged at one side of the rotating block 18 close to the main shaft 11, a moving block 14 is slidably connected to the inner wall of the through groove 19, a threaded shaft 15 which extends forwards and backwards is in threaded connection with the moving block 14, a fixed motor 16 which is fixed on the inner wall at the rear side of the working chamber 61 is rotatably connected to the rear side of the threaded shaft, the chute 44 inner wall is connected with a moving shaft 17 extending leftwards and rightwards and connected with the inner wall of the right side of the working chamber 61 in a sliding manner, the left side of the moving shaft 17 is provided with three connecting grooves 38 which run through the inner wall of the working chamber 61 and extend towards one side far away from the main shaft 11 and are distributed in an annular array manner, the inner wall of each connecting groove 38 is fixed with a fixed box 39, the inner wall of each fixed box 39 is provided with a fixed cavity 41 which is close to one side of the main shaft 11 and is an inclined side, the inner wall of each fixed cavity 41 is connected with a supporting shaft 20 which is close to one side of the main shaft 11 and is fixedly connected with the left side of the moving shaft 17 and extends towards one side far away from the main shaft 11, three steel balls 40 which are distributed in a circumferential array manner and are abutted against each other are abutted against the inner wall, a spring 42 surrounding the support shaft 20 is arranged between the fixing plate 43 and the fixing box 39 on the side far away from the main shaft 11, a connecting block 21 abutting against the outer side of the working box 13 is fixed on the side of the support shaft 20 far away from the main shaft 11, a clamping groove 62 with an opening facing the side far away from the main shaft 11 and an opening small on the side far away from the main shaft 11 and large on the side near to the main shaft 11 is arranged on the side of the connecting block 21 far away from the main shaft 11, a spare wheel 22 is connected on the inner wall of the three clamping grooves 62 in a sliding manner, a supporting device 901 for supporting an automobile tire is arranged on the left side of the main shaft 11, a driving device 902 for driving and supporting is arranged between the supporting device 901 and the working box 13.

Advantageously, the supporting device 901 comprises a wheel hub 31 rotatably connected to the left side of the main shaft 11 and centrally symmetrical with respect to the main shaft 11, a tire 32 is fixed on the outer side of the wheel hub 31, an arc block 36 fixed on the outer side of the main shaft 11 and longitudinally symmetrical with respect to the main shaft 11 is arranged on the right side of the vertical section of the wheel hub 31, two arc grooves 35 with openings facing away from one side of the main shaft 11 and vertically symmetrical are arranged in the arc block 36, a sliding block 34 is slidably connected to the inner wall of the arc grooves 35, a sliding groove 45 is arranged on the right side of the sliding block 34, a moving column 33 is slidably connected to the inner wall of the sliding groove 45, a roller 30 vertically symmetrical with respect to the moving column 33 is rotatably connected to the outer side of the moving column 33, two connecting rods 29 extending towards one side of the main shaft 11 and longitudinally symmetrical with respect to the right side of the moving column, the two upper and lower engaging blocks 28 are rotatably connected with a sliding block 27 which is slidably connected to the main shaft 11 and is vertically symmetrical with respect to the main shaft 11, when the sliding block 27 moves leftwards along the main shaft 11, the engaging block 28 causes the moving column 33 to move along the inner wall of the sliding groove 45 towards the side far away from the main shaft 11 through the connecting rod 29, the two upper and lower moving columns 33 cause the roller 30 to abut against the upper and lower horizontal sections of the hub 31, when the wheel rotates, the hub 31 causes the sliding block 34 to move along the inner wall of the arc-shaped groove 35 through the roller 30 and the moving column 33, and simultaneously, the moving column 33 causes the engaging block 28 to rotate through the connecting rod 29.

Advantageously, the driving device 902 includes an outer toothed ring 53 fixedly connected to the outside of the sliding block 27 and located on the right side of the engagement block 28, an inner toothed ring 26 is connected to the outside of the outer toothed ring 53 in a meshing manner, an inner toothed ring 26 which is centrosymmetric with respect to the spindle 11 is connected to the outside of the inner toothed ring 26 in a meshing manner, a friction wheel 25 is connected to the inside of the inner toothed ring 26 in a meshing manner, a driving motor 24 is connected to the right side of the friction wheel 25 in a rotating manner, a fixed block 23 fixedly connected to the spindle 11 and rotatably connected to the right side of the inner toothed ring 26 is fixed to the right side of the driving motor 24, the driving motor 24 rotates the friction wheel 25, the friction wheel 25 rotates the inner toothed ring 26 through meshing, and the inner toothed ring 26 moves the sliding block 27 to the left along the spindle 11 through meshing engagement of the outer.

Beneficially, the detecting device 903 includes a right-angle block 37 fixedly connected to the right side of the moving column 33 at the lower side and located at the lower side of the connecting rod 29, a through cavity 50 with an opening facing the hub 31 and an inclined side at the lower side is arranged in a vertical section of the right-angle block 37, a sliding column 46 is slidably connected to an inner wall at the upper side of the through cavity 50, a compression spring 51 is arranged between the right side of the sliding column 46 and the inner wall at the right side of the through cavity 50, the sliding column 46 is rotatably connected with a downwardly extending rotating shaft 47, the rotating shaft 47 is splined with two spline sleeves 56 which are vertically symmetrical, a rotating sleeve 49 which is centrally symmetrical with respect to the rotating shaft 47 is fixed outside the two spline sleeves 56, a rotating cavity 55 is arranged in the rotating sleeve 49, a fixing ring 57 fixed to the outer side of the rotating shaft 47 is arranged in the rotating cavity 55, two engaging springs 54 which are vertically symmetrical around the rotating shaft, the spline connection of pivot 47 downside is located the vice spline sleeve 58 of rotating sleeve 49 downside, the rotation of vice spline sleeve 58 outside is connected with sliding connection in lead to the sloping block 59 of chamber 50 slope side inner wall, be equipped with the opening up in the sloping block 59 and be located the link up groove 60 of pivot 47 downside, it presses close to rotate sleeve 49 the right side of tire 32 and along with tire 32 rotates and rotates, when during gas leakage in the tire 32, tire 32 can make it drives to rotate sleeve 49 slide column 46 along lead to chamber 50 upside inner wall and move to the right, simultaneously pivot 47 can along link up inslot 60 inner wall and remove, sloping block 59 can along lead to chamber 50 slope side inner wall and move to the right.

Beneficially, an abutting rod 48 slidably connected to the front and rear inner walls of the through cavity 50 and extending rightward is rotatably connected to the outer side of the rotating shaft 47, an inductor 52 fixed to the right inner wall of the through cavity 50 and located on the lower side of the compression spring 51 is arranged on the right side of the abutting rod 48, and when the rotating shaft 47 moves rightward, the rotating shaft 47 can enable the abutting rod 48 to approach the inductor 52, so that the inductor 52 is activated to trigger the fixed motor 16 to be activated.

The use steps herein are described in detail below with reference to fig. 1-6:

initially, the fixed motor 16, the driving motor 24, and the sensor 52 are in the off state, the two rollers 30 are not abutted to the horizontal section of the hub 31, the spring 42, the engaging spring 54, and the compression spring 51 are in the compressed state, and the spare wheel 22 is in the elliptical state.

In operation, before the automobile is started, the driving motor 24 is started to rotate the friction wheel 25, the friction wheel 25 enables the inner toothed ring 26 to rotate around the left side of the fixed block 23 through meshing, because the inner wall of the inner toothed ring 26 is meshed and connected with the outer side of the outer toothed ring 53, the inner toothed ring 26 enables the outer toothed ring 53 to push the sliding block 27 to move leftwards along the main shaft 11, meanwhile, the connecting block 28 moves leftwards together, the connecting block 28 enables the moving column 33 to move towards the side far away from the main shaft 11 along the inner wall of the sliding groove 45 through the connecting rod 29 until the roller 30 abuts against the inner sides of the upper horizontal section and the lower horizontal section of the wheel hub 31, at the moment, the left side of the rotating sleeve 49 in the right-angle block 37 abuts against the right side of the tire 32, after the automobile is started, the roller 30 rotates around the outer side of the moving column 33 under the action of the wheel hub 31, when the automobile turns, the tire, the roller 30 and the moving column 33 drive the sliding block 34 to move along the inner wall of the arc-shaped groove 35, at this time, the moving column 33 can drive the connecting block 28 to rotate through the connecting rod 29, at this time, because the circle center of the arc-shaped groove 35 coincides with the rotating circle center of the connecting block 28, the connecting rod 29 cannot be broken, when the automobile runs normally, because the rotating sleeve 49 is abutted to the right side of the tire 32, the tire 32 can enable the rotating sleeve 49 to drive the rotating shaft 47 to rotate through the spline sleeve 56, because the shock absorption system of the automobile and the tire 32 can change shapes somewhat, the rotating sleeve 49 can drive the spline sleeve 56 to move up and down along the rotating shaft 47, the two connecting springs 54 have the function of keeping the rotating sleeve 49 at the same position, the inclined side at the lower side of the through cavity 50 has the function of timely discharging water entering the through cavity 50, when the automobile runs on the wheel, the tire 32 can extend towards the left side and the right side under, at this time, the tire 32 will make the rotating sleeve 49 drive the rotating shaft 47 to move to the right, the rotating shaft 47 will make the sliding column 46 move to the right along the inner wall of the upper side of the through cavity 50, so that the compression spring 51 is compressed, at the same time, the rotating shaft 47 will enter the engaging groove 60 along the secondary spline sleeve 58, at this time, the inclined plane block 59 will move to the right along the inner wall of the inclined side of the through cavity 50, at the same time, the rotating shaft 47 will make the abutting rod 48 move to the right along the inner wall of the front and back of the through cavity 50, when the abutting rod 48 abuts against the inductor 52, the inductor 52 will be started, the fixed motor 16 will make the threaded shaft 15 rotate, the threaded shaft 15 will make the rotating block 18 rotate counterclockwise around the outer side of the rotating sleeve 12 through the screw action, and at this time, the moving block 14 will move to the side close to the main shaft 11 along the inner wall of, the supporting shaft 20 moves among the three steel balls 40, the spring 42 is stretched at the moment, the supporting shaft 20 enables the connecting block 21 to be separated from abutting contact with the outer side of the working box 13, the three connecting blocks 21 can support the originally loose spare wheel 22 tightly at the moment, meanwhile, the inclined side inner wall of the clamping groove 62 ensures that the spare wheel 22 cannot fall off, the diameter of the spare wheel 22 is larger than the length of the vertical section of the wheel hub 31 at the moment, the wheel hub 31 can be prevented from being damaged under the condition that the tire 32 is empty, when the spare wheel 22 replaces the tire 32 to have a short supporting effect on the automobile, the supporting position is the connecting block 21 abutting against the ground, the supporting node is the contact position between the three steel balls 40 in the position and the supporting shaft 20 at the moment, because the upper side inner wall of the fixing cavity 41 is in an inclined state, the weight of the automobile is loaded on the main shaft 11 and the working box 13, the working box, the three steel balls 40 at this time are pressed by the inclined sides of the fixing cavities 41 to clamp the support shaft 20 more, so that the support shaft 20 has better supporting function.

At the end, the apparatus is returned to its original state, and the stationary motor 16, drive motor 24, and sensor 52 are turned off.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a drive arrangement for wheel damage is emergent, is equipped with the spline groove and controls the main shaft that extends including the upside, the main shaft outside is rotated and is connected with the rotating sleeve, the rotating sleeve outside is fixed with about main shaft centrosymmetric's work box, its characterized in that: a working chamber is arranged in the working box, a rotating block which is rotatably connected to the outer side of the rotating sleeve and is symmetrical about the center of the main shaft is arranged in the working chamber, a through groove with an upward opening is arranged on one side of the rotating block close to the main shaft, a moving block is slidably connected to the inner wall of the through groove, the moving block is in threaded connection with a threaded shaft extending forwards and backwards, a fixed motor fixed on the inner wall of the rear side of the working chamber is rotatably connected to the rear side of the threaded shaft, three chutes which are distributed in a circumferential array manner about the main shaft and penetrate through the left side and the right side of the rotating block are arranged on one side of the rotating block away from the main shaft, a moving shaft which extends leftwards and rightwards and is slidably connected to the inner wall of the right side of the working chamber is connected to the inner wall, a fixed box is fixed on the inner wall of the connecting groove, a fixed cavity with an inclined side close to one side of the main shaft is arranged on the inner wall of the fixed box, a support shaft with one side close to the main shaft and fixedly connected to the left side of the movable shaft and extending away from one side of the main shaft is slidably connected to the inner wall of the fixed cavity, three steel balls which are distributed in a circumferential array and mutually abutted are abutted between the outer side of the support shaft and the inner wall of the fixed cavity, a fixed plate fixed on the outer side of the support shaft is arranged on one side of the fixed box away from the main shaft, a spring surrounding the support shaft is arranged between the fixed plate and one side of the fixed box away from the main shaft, a connecting block abutted to the outer side of the working box is fixed on one side of the support shaft away from the main shaft, a clamping groove with an opening facing away, the inner walls of the three clamping grooves are connected with spare wheels in a sliding mode, a supporting device for supporting an automobile tire is arranged on the left side of the main shaft, a driving device for driving and supporting is arranged between the supporting device and the working box, and a detection device for detecting the state of the tire is arranged on the lower side of the main shaft.

2. A drive device for use in the emergency of wheel breakage as claimed in claim 1, wherein: the supporting device comprises a hub which is rotationally connected to the left side of the main shaft and is symmetrical about the center of the main shaft, a tire is fixed on the outer side of the hub, an arc-shaped block which is fixed on the outer side of the main shaft and is symmetrical with the main shaft in the front-back direction is arranged on the right side of the vertical section of the hub, two arc-shaped grooves which are provided with openings facing to one side far away from the main shaft and are symmetrical up and down are arranged in the arc-shaped block, the inner wall of the arc-shaped groove is connected with a sliding block in a sliding way, the right side of the sliding block is provided with a sliding groove, the inner wall of the sliding groove is connected with a moving column in a sliding way, the outer side of the moving column is rotatably connected with idler wheels which are vertically symmetrical relative to the moving column, the right side of the moving column is rotatably connected with two connecting rods which are close to one side of the main shaft and extend to be front-back symmetrical, the two connecting rods are close to one side of the main shaft and are rotatably connected with linking blocks, and the linking blocks are rotatably connected with sliding blocks which are slidably connected with the main shaft and are vertically symmetrical relative to the main shaft.

3. A drive device for use in the emergency of wheel breakage as claimed in claim 2, wherein: drive arrangement includes fixed connection in the sliding block outside just is located link up the outer ring gear on piece right side, the meshing of outer ring gear outside is connected with interior ring gear, the meshing of interior ring gear outside is connected about the interior ring gear of main shaft centrosymmetry, the meshing of interior ring gear upside is connected with the friction pulley, the friction pulley right side is rotated and is connected with driving motor, the driving motor right side is fixed with fixed connection in the main shaft just rotate connect in the fixed block on interior ring gear right side.

4. A drive device for use in the emergency of wheel breakage as claimed in claim 3, wherein: the detection device comprises a right-angle block fixedly connected to the right side of the moving column at the lower side and positioned at the lower side of the connecting rod, a through cavity with an opening facing the hub and an inclined side at the lower side is arranged in a vertical section of the right-angle block, a sliding column is slidably connected to the inner wall at the upper side of the through cavity, a compression spring is arranged between the right side of the sliding column and the inner wall at the right side of the through cavity, the sliding column is rotatably connected with a rotating shaft extending downwards, the rotating shaft is in splined connection with two spline sleeves which are vertically symmetrical, rotating sleeves which are centrally symmetrical with respect to the rotating shaft are fixed on the outer sides of the two spline sleeves, a rotating cavity is arranged in the rotating sleeve, a fixing ring fixed on the outer side of the rotating shaft is arranged in the rotating cavity, two linking springs which are symmetrical vertically around the rotating shaft are arranged between the, the outer side of the auxiliary spline sleeve is rotatably connected with an inclined plane block which is connected with the inner wall of the inclined side of the through cavity in a sliding mode, and an engaging groove which is provided with an upward opening and is located on the lower side of the rotating shaft is formed in the inclined plane block.

5. A drive device for use in an emergency of wheel breakage as claimed in claim 4, wherein: the pivot outside is rotated and is connected with sliding connection in lead to the chamber around the inner wall and the butt pole that extends right, butt pole right side is equipped with and is fixed in lead to chamber right side inner wall and be located the inductor of compression spring downside.