CN110281715B

CN110281715B - Portable vehicle tool

Info

Publication number: CN110281715B
Application number: CN201910380993.2A
Authority: CN
Inventors: 陈敬伟; 何飞
Original assignee: Nantong Li'anjian Intelligent Technology Co ltd
Current assignee: Nantong Li'anjian Intelligent Technology Co ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2021-05-21
Anticipated expiration: 2039-05-08
Also published as: CN110281715A

Abstract

The invention belongs to the field of automobile articles, and particularly relates to a portable vehicle tool capable of dismounting a tire, which comprises a first connecting part, a second connecting part, a transmission member and a tire dismounting assembly, wherein the first connecting part is connected with the second connecting part; the portable tool for the vehicle is used for carrying out flattening design on the tire remover in the prior art and driving the tire remover by utilizing the power of the vehicle, so that the structure of the tire remover is greatly simplified, the tire remover can be carried along with the vehicle, and the problem that a plurality of tires of the vehicle cannot be maintained on site when damaged is effectively solved.

Description

Portable vehicle tool

Technical Field

The invention belongs to the field of automobile articles, and particularly relates to a portable vehicle tool capable of facilitating tire disassembly and assembly.

Background

During driving, the tire can only be replaced once being damaged, however, one automobile is generally only provided with one spare tire, and when more than two tires are damaged simultaneously, road rescue can only be sought, because the maintenance tools of the traditional automobile cannot complete the tire replacement and repair operations at all.

Disclosure of Invention

The invention aims to provide a portable vehicle tool which can be used for assembling and disassembling an automobile tire at any time.

In order to achieve the purpose, the invention provides the following technical scheme: a portable vehicle tool includes a first connecting portion, a second connecting portion, a transmission member, and a tire mounting and demounting assembly; first connecting portion are used for being connected with the wheel hub detachable at damaged tire place, tire dismouting unit mount is on first connecting portion, and tire dismouting subassembly includes the dismouting bird head that revolves the setting along first connecting portion circumference, the second connecting portion are used for being connected with the wheel hub detachable of automobile drive wheel, the second connecting portion are connected with tire dismouting subassembly through drive member and are used for the drive dismouting bird head is revolved.

The first connecting part comprises a fixed disc and a floating disc, one end of the fixed disc is convexly provided with a plurality of limiting sleeves, the number and the direction of the limiting sleeves are consistent with those of bolt holes in the hub, and center holes of the limiting sleeves penetrate through the fixed disc; the floating disc is positioned on one side of the fixed disc opposite to the limiting sleeves, a plurality of pull pins are arranged on one end face of the floating disc opposite to the fixed disc, the number and the direction of the pull pins are consistent with those of the limiting sleeves, the pull pins respectively penetrate through the central holes of the limiting sleeves, the protruding ends of the pull pins protrude out of the protruding ends of the limiting sleeves, protruding heads protruding outwards in the radial direction are further arranged at the protruding ends of the pull pins, and expansion sleeves made of elastic materials are arranged between the protruding heads and the end faces of the limiting sleeves; and a tensioning unit for driving the floating disc and the fixed disc to be away from each other is arranged between the floating disc and the fixed disc.

The tensioning unit comprises a threaded hole penetrating through the center of the floating disc and a wrench in threaded fit with the threaded hole, the wrench comprises a rotating portion and a handheld portion which are perpendicular to each other, and external threads matched with the threaded hole are arranged on the rotating portion.

The tire dismouting subassembly still includes annular revolving part, annular revolving part and first connecting portion normal running fit, and the axis collineation of pivot and damaged tire place wheel hub, the dismouting bird head is installed on annular revolving part, be equipped with the ring gear of rigid coupling with it on the annular revolving part, it is provided with the gear to rotate on the first connecting portion, and the gear meshes with the ring gear mutually, the pivot tip of gear is equipped with the square shaft, respectively be equipped with a ball groove on four faces of square shaft, drive disk assembly with the detachable connection of square shaft.

The bird head is adjustably fixed on the edge of the annular rotating part along the axial direction of the annular rotating part.

The bird head is in sliding fit with a spline sleeve arranged at the edge of the annular rotary part through a spline shaft, the axis of the spline shaft is parallel to that of the annular rotary part, the spline shaft is connected with a threaded shaft, the edge of the annular rotary part is also rotatably provided with a nut block coaxial with the spline sleeve, the nut block is provided with a rotating handle, and the threaded shaft and the nut block are in threaded fit.

The second connecting part comprises a pressure plate, a pressure bar and a binding band; one end of the pressure plate is convexly provided with limiting columns, the number and the direction of the limiting columns are consistent with the number and the direction of bolt holes in a hub of an automobile driving wheel, the diameter of the limiting columns is consistent with the diameter of a counter bore in the hub of the automobile driving wheel, and the center of each limiting column is provided with a hexagonal hole for avoiding a bolt head in the counter bore; one end of the pressing bar, back to the limiting column, on the pressing bar and the pressure plate is blocked and connected, and the two ends of the pressing bar are fixed on the spoke of the automobile driving wheel through a binding band.

The center of the one end that carries on the back with spacing post on the pressure disk is equipped with the output shaft, the position that is close to the pressure disk terminal surface on the global of output shaft is equipped with one along the radial shoulder that the evagination set up, the middle part of pressing the thick stick is equipped with a semicircular bend portion, the inner arc diameter of semicircular bend portion with the diameter of output shaft is unanimous, semicircular bend portion card is established on the output shaft, and the both sides of semicircular bend portion respectively with shoulder and pressure disk terminal surface laminating.

The transmission member comprises at least three sections of transmission shafts, the transmission shafts are connected through universal joints, and quick joints are arranged at the end parts of the transmission shafts at two ends.

The quick connector comprises a sleeve, a square hole is formed in the center of the sleeve, sliding grooves which correspond to four side walls of the square hole in a one-to-one mode are formed in the outer wall of the sleeve, the length direction of each sliding groove is parallel to the axis of the sleeve, a through hole which penetrates through the wall of the sleeve is formed in the bottom of each sliding groove, steel balls are arranged in each through hole, the diameter of each steel ball is larger than the thickness from the bottom of each sliding groove to the straight wall of the square hole, a push block is arranged in each sliding groove and forms sliding fit with each sliding groove, a first matching surface and a second matching surface are arranged on one side, opposite to each through hole, of each push block in the length direction of each sliding groove, the first matching surfaces are attached to the bottom of each sliding groove, the second matching surfaces are arranged at intervals with the bottom of; the outer annular surface of the sleeve is further provided with a check ring, a pressure spring is arranged between the check ring and the push block, the check ring and the pressure spring are located at one end of the push block where the first matching surface is located, and the check ring is in threaded connection with the sleeve.

The invention has the technical effects that: the portable vehicle tool adopted by the invention is used for carrying out flattening design on the tire remover in the prior art and is driven by the power of the vehicle, so that the structure of the tire remover is greatly simplified, the tire remover can be carried along with the vehicle, and the problem that a plurality of tires of the vehicle cannot be maintained on site when damaged is effectively solved.

Drawings

Fig. 1 is a perspective view showing a use state of a tool for a portable vehicle according to an embodiment of the present invention;

fig. 2 is a plan view of a portable vehicle tool according to an embodiment of the present invention in a use state;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of section I of FIG. 3;

FIG. 5 is an enlarged view of section II of FIG. 3;

FIG. 6 is a cross-sectional view B-B of FIG. 2;

FIG. 7 is an assembly view of the first coupling portion and tire assembly and disassembly assembly provided by an embodiment of the present invention;

FIG. 8 is a perspective view of the first coupling portion and the tire assembly and disassembly assembly from another perspective as provided by the embodiment of the present invention;

FIG. 9 is a perspective view of a second connection provided by an embodiment of the present invention;

FIG. 10 is a perspective view of another perspective of a second connector provided in accordance with an embodiment of the present invention;

fig. 11 is a perspective view of a drive member provided by an embodiment of the present invention.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the following description is given in conjunction with the accompanying examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.

Example 1

As shown in fig. 1, a portable vehicle tool includes a first connecting portion 10, a second connecting portion 20, a transmission member 30, and a tire mounting and demounting assembly 40; first connecting portion 10 is used for being connected with the wheel hub detachable at damaged tire 50 place, tire dismouting subassembly 40 is installed on first connecting portion 10, and tire dismouting subassembly 40 includes the dismouting bird head 42 that revolves the setting along first connecting portion 10 circumference, second connecting portion 20 is used for being connected with the wheel hub detachable of automobile drive wheel 60, second connecting portion 20 is connected with tire dismouting subassembly 40 through drive member 30 and is used for driving dismouting bird head 42 revolves.

Specifically, as shown in fig. 6, 7 and 8, the first connecting portion 10 includes a fixed disk 11 and a floating disk 12, one end of the fixed disk 11 is provided with a plurality of limiting sleeves 111 in a protruding manner, the number and the orientation of the limiting sleeves 111 are consistent with those of bolt holes on a hub, and a central hole of each limiting sleeve 111 penetrates through the fixed disk 11; the floating disc 12 is positioned on one side of the fixed disc 11 opposite to the limiting sleeves 111, a plurality of pull pins 121 are arranged on one end face of the floating disc 12 opposite to the fixed disc 11, the number and the direction of the pull pins 121 are consistent with those of the limiting sleeves 111, the pull pins 121 respectively penetrate through the central holes of the limiting sleeves 111, the protruding ends of the pull pins 121 protrude out of the protruding ends of the limiting sleeves 111, the protruding ends of the pull pins 121 are also provided with protruding heads 122 protruding outwards in the radial direction, and expansion sleeves 112 made of elastic materials are arranged between the protruding heads 122 and the end faces of the limiting sleeves 111; and a tensioning unit for driving the floating disc 12 and the fixed disc 11 to be away from each other is arranged between the floating disc and the fixed disc.

Preferably, the tensioning unit includes the screw hole that runs through floating disc 12 center setting to and constitute screw-thread fit's spanner 13 with the screw hole, spanner 13 includes mutually perpendicular's rotation portion and handheld portion, be equipped with on the rotation portion with screw hole complex external screw thread.

As shown in fig. 2, 3, 4, and 5, the tire dismounting assembly 40 further includes an annular rotary component 41, the annular rotary component 41 is rotatably fitted with the first connection portion 10, and the axis of the hub where the rotating shaft and the damaged tire 50 are located are collinear, the dismounting bird head 42 is mounted on the annular rotary component 41, the annular rotary component 41 is provided with a gear ring 46 fixedly connected with the annular rotary component 41, the first connection portion 10 is rotatably provided with a gear 14, the gear 14 is engaged with the gear ring 46, the end of the rotating shaft of the gear 14 is provided with a square shaft, four faces of the square shaft are respectively provided with a spherical groove, and the transmission member 30 is detachably connected with the square shaft.

Further, the bird head 42 is adjustably fixed to the edge of the annular rotating member 41 along the axial direction of the annular rotating member 41.

Specifically, as shown in fig. 4, the bird head 42 is slidably fitted with a spline shaft 421 through a spline housing 43 provided at an edge of the annular rotary member 41, an axis of the spline shaft 421 is parallel to an axis of the annular rotary member 41, the spline shaft 421 is connected with a threaded shaft 422, a nut block 44 coaxial with the spline housing 43 is rotatably provided at an edge of the annular rotary member 41, a rotating handle 45 is provided on the nut block 44, and the threaded shaft 422 and the nut block 44 are in threaded fit.

As shown in fig. 9 and 10, the second connecting portion 20 includes a platen 21, a pressing bar 22, and a strap 23; one end of the pressure plate 21 is convexly provided with limiting columns 26, the number and the direction of the limiting columns 26 are consistent with those of bolt holes in a hub of the automobile driving wheel 60, the diameter of the limiting columns 26 is consistent with that of counter bores in the hub of the automobile driving wheel 60, and the centers of the limiting columns 26 are provided with hexagonal holes for avoiding bolt heads in the counter bores; the pressing rod 22 is in blocking connection with one end of the pressing plate 21, which is back to the limiting column 26, and two ends of the pressing rod 22 are fixed on spokes of the automobile driving wheel 60 through binding bands 23.

Preferably, the center of the one end that carries on the back with spacing post 26 on the pressure disk 21 is equipped with output shaft 24, the position that is close to pressure disk 21 terminal surface on output shaft 24 global is equipped with one and stretches the shaft shoulder 25 that sets up along radial outside protrusion, the middle part of pressure thick stick 22 is equipped with semicircular bending portion, semicircular bending portion's inner arc diameter with output shaft 24's diameter is unanimous, semicircular bending portion card is established on output shaft 24, and semicircular bending portion's both sides respectively with shaft shoulder 25 and the laminating of pressure disk 21 terminal surface.

As shown in fig. 11, the transmission member 30 includes at least three transmission shafts 31, each transmission shaft 31 is connected to another transmission shaft 31 through a universal joint 32, wherein the transmission shafts 31 at both ends are provided with quick joints 33.

Specifically, as shown in fig. 5, the quick connector 33 includes a sleeve 331, a square hole is formed in the center of the sleeve 331, the outer wall of the sleeve 331 is provided with sliding grooves 332 corresponding to the four side walls of the square hole one by one, the length direction of the sliding groove 332 is parallel to the axis of the sleeve 331, a through hole arranged through the wall of the sleeve 331 is arranged at the bottom of the sliding groove 332, a steel ball 334 is arranged in the through hole, the diameter of the steel ball 334 is larger than the thickness from the groove bottom of the sliding groove 332 to the straight wall of the square hole, a push block 333 is arranged in the sliding groove 332, the push block 333 and the sliding groove 332 form sliding fit, the side of the push block 333 opposite to the through hole is provided with a first mating surface and a second mating surface along the length direction of the sliding groove 332, the first matching surface is attached to the bottom of the sliding groove 332, the second matching surface is spaced from the bottom of the sliding groove 332, and the first matching surface and the second matching surface are in transition through a slope surface; a retainer ring 335 is further arranged on the outer annular surface of the sleeve 331, a pressure spring 336 is arranged between the retainer ring 335 and the push block 333, the retainer ring 335 and the pressure spring 336 are located at one end of the push block 333 where the first matching surface is located, and the retainer ring 335 is in threaded connection with the sleeve 331.

Example 2

A method for assembling and disassembling a tire, which comprises the following steps,

the disassembling process comprises the following steps:

the method comprises the following steps: lifting the damaged side of the vehicle body of the tire by using a jack, dismounting the damaged tire and the communicating hub of the tire together by using a wrench 13 of a sleeve 331, and enabling the hub to be upward and flatly placing the tire on the ground;

step two: the damaged tire is separated from the hub by using a portable vehicle tool, and the separation process comprises the following steps: firstly, fixing a first connecting part 10 and a wheel hub where a damaged tire is located, then lifting one driving wheel 60 of an automobile, fixing a second connecting part 20 and the wheel hub of the driving wheel 60, connecting the second connecting part 20 and a tire dismounting assembly 40 on the first connecting part 10 through a transmission member 30, hooking the upper edge of the damaged tire on a dismounting bird head 42 by using a pry bar, finally starting the automobile and enabling the driving wheel 60 to rotate, and driving the dismounting bird head 42 to rotate by using the power of the driving wheel 60 until the upper edge of the tire is led out from an annular groove of the wheel hub;

step three: hooking the lower edge of the damaged tire on the bird head 42 by using a pry bar, starting the vehicle, rotating the driving wheel 60, and driving the bird head 42 to rotate by using the power of the driving wheel 60 until the lower edge of the tire is led out from the annular groove of the hub;

step four: separating the rotating member from the tire mounting and demounting assembly 40, and then removing the tire from the hub, thereby completing the tire demounting;

the installation process comprises

Step five: placing the tire on the hub with the tire tilted and then reconnecting the rotating member to the tire changing assembly 40;

step six: pressing one side of the lower edge of the tire into the annular groove of the hub, pressing the dismounting bird head 42 on the lower edge of the tire on the side, and starting the automobile driving wheel 60 until the dismounting bird head 42 completely guides the lower edge of the tire into the annular groove of the hub;

step seven: sleeving one side of the upper edge of the tire in the annular groove of the hub by using a pry bar, pressing the dismounting pressure head on the upper edge of the tire on the side, and starting the automobile driving wheel 60 until the upper edge of the tire is completely guided into the annular groove of the hub by dismounting the bird head 42;

step eight: and (4) dismantling the portable vehicle tool, inflating the tire, installing the tire to the original position, and finally withdrawing the jack to finish the tire installation.

Specifically, the method for mounting the first connection portion 10 includes: firstly, the fixed disc 11 and the floating disc 12 are folded, then the limiting sleeves 111, the pull pins 121 and the expansion sleeves 112 are correspondingly inserted into the bolt holes of the wheel hub where the damaged tire is located one by one, and then the tensioning unit is driven to act, so that the floating disc 12 and the fixed disc 11 are far away from each other until the expansion sleeves 112 expand along the radial direction to be tightly attached to the inner walls of the bolt holes. The driving method of the tensioning unit comprises the following steps: the rotating part of the wrench 13 is screwed into the threaded hole, and when the top end of the rotating part abuts against the fixed disk 11, the wrench 13 is continuously rotated until the fixed disk 11 and the hub are not loosened when the wrench 13 is pulled upwards. The connection method of the rotating member and the tire mounting and demounting assembly 40 comprises the following steps: the transmission member 30 is fixedly connected to the square shaft. In the process of installing the first connecting part 10, the mounting and dismounting bird head 42 is adjusted to the position of the principle wheel hub, and after the first connecting part 10 is installed, the mounting and dismounting bird head 42 is adjusted to be tightly attached to the edge of the wheel hub. The adjusting method for disassembling and assembling the bird head 42 comprises the following steps: the rotating handle 45 is rotated. The method for installing the second connecting part 20 comprises the following steps: firstly, aligning each limit post 26 on the pressure plate 21 with each counter bore on the hub of the driving wheel 60, and then inserting the limit posts 26 into the counter bores to ensure that the pressure plate 21 is attached to the end face of the hub; the pressing bar 22 is then pressed against the outside of the platen 21, and the both ends of the pressing bar 22 are fastened to the spokes of the driving wheel 60 with the binding bands 23. When the pressing bar 22 is installed, the semicircular bending part is clamped on the output shaft 24, and two sides of the semicircular bending part are respectively attached to the shaft shoulder 25 and the end face of the pressure plate 21. The installation process of the transmission member 30 is as follows: the quick connector 33 on one of the transmission shafts 31 is fixedly connected with the tire dismounting assembly 40, and the quick connector 33 on the other transmission shaft 31 is fixedly connected with the second connecting part 20. The connection method of the quick connector 33 comprises the following steps: firstly, the pushing block 333 is pushed to compress the compression spring 336, then the sleeve 331 is sleeved on the square shaft arranged on the tire dismounting component 40 or the second connecting part 20, and finally the pushing block 333 is loosened to reset the compression spring 336.

The tire remover in the prior art is designed to be flat, and is driven by the power of a vehicle, so that the structure of the tire remover is greatly simplified, the tire remover can be carried on the vehicle, and the problem that a plurality of tires of the vehicle cannot be maintained on site when damaged is effectively solved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention. Structures, devices, and methods of operation not specifically described or illustrated herein are generally practiced in the art without specific recitation or limitation.

Claims

1. A tool for a portable vehicle, characterized in that: comprises a first connecting part (10), a second connecting part (20), a transmission component (30) and a tire dismounting assembly (40); the first connecting part (10) is detachably connected with a hub where a damaged tire (50) is located, the tire dismounting assembly (40) is mounted on the first connecting part (10), the tire dismounting assembly (40) comprises a dismounting bird head (42) which is arranged along the circumferential direction of the first connecting part (10) in a rotating mode, the second connecting part (20) is detachably connected with the hub of an automobile driving wheel (60), and the second connecting part (20) is connected with the tire dismounting assembly (40) through a transmission component (30) and used for driving the dismounting bird head (42) to rotate; the first connecting part (10) comprises a fixed disc (11) and a floating disc (12), one end of the fixed disc (11) is convexly provided with a plurality of limiting sleeves (111), the number and the direction of the limiting sleeves (111) are consistent with those of bolt holes in a hub, and a central hole of each limiting sleeve (111) penetrates through the fixed disc (11); the floating disc (12) is positioned on one side of the fixed disc (11) opposite to the limiting sleeves (111), a plurality of pull pins (121) are arranged on one end face of the floating disc (12) opposite to the fixed disc (11), the number and the direction of the pull pins (121) are consistent with those of the limiting sleeves (111), each pull pin (121) respectively penetrates through a central hole of each limiting sleeve (111), the protruding end of each pull pin (121) protrudes out of the protruding end of each limiting sleeve (111), the protruding end of each pull pin (121) is also provided with a raised head (122) which protrudes outwards in the radial direction, and an expansion sleeve (112) made of elastic materials is arranged between the raised head (122) and the end face of each limiting sleeve (111); and a tensioning unit for driving the floating disc (12) and the fixed disc (11) to be away from each other is arranged between the floating disc and the fixed disc.

2. The tool for a portable vehicle according to claim 1, characterized in that: the tensioning unit comprises a threaded hole penetrating through the center of the floating disc (12) and a wrench (13) in threaded fit with the threaded hole, the wrench (13) comprises a rotating portion and a handheld portion which are perpendicular to each other, and external threads matched with the threaded hole are arranged on the rotating portion.

3. The tool for a portable vehicle according to claim 1, characterized in that: tire dismouting subassembly (40) still includes annular revolving part (41), annular revolving part (41) and first connecting portion (10) normal running fit, and the axis collineation of pivot and damaged tire (50) place wheel hub, dismouting bird head (42) are installed on annular revolving part (41), be equipped with ring gear (46) of rigid coupling with it on annular revolving part (41), it is provided with gear (14) to rotate on first connecting portion (10), and gear (14) and ring gear (46) mesh mutually, the pivot tip of gear (14) is equipped with the square shaft, respectively be equipped with a ball groove on four faces of square shaft, drive member (30) with the detachable connection of square shaft.

4. The tool for a portable vehicle according to claim 3, characterized in that: the bird head (42) is adjustably fixed on the edge of the annular rotating part (41) along the axial direction of the annular rotating part (41).

5. The tool for a portable vehicle according to claim 4, characterized in that: dismouting bird head (42) constitute sliding fit through spline shaft (421) and spline housing (43) that annular revolving part (41) edge set up, the axis of spline shaft (421) is parallel with the axis of annular revolving part (41), connect a screw thread axle (422) on spline shaft (421), annular revolving part (41) edge still rotates and is provided with one with spline housing (43) coaxial nut piece (44), be equipped with twist grip (45) on nut piece (44), screw thread axle (422) and nut piece (44) constitute screw-thread fit.

6. The tool for a portable vehicle according to claim 1, characterized in that: the second connecting part (20) comprises a pressure plate (21), a pressure lever (22) and a binding band (23); one end of the pressure plate (21) is convexly provided with limiting columns (26), the number and the direction of the limiting columns (26) are consistent with the number and the direction of bolt holes in a hub of an automobile driving wheel (60), the diameter of the limiting columns (26) is consistent with the diameter of counter bores in the hub of the automobile driving wheel (60), and the centers of the limiting columns (26) are provided with hexagonal holes for avoiding bolt heads in the counter bores; one end of the pressing rod (22) and one end of the pressing plate (21), which are opposite to the limiting column (26), are blocked, and the two ends of the pressing rod (22) are fixed on the spoke of the automobile driving wheel (60) through the binding band (23).

7. The tool for a portable vehicle according to claim 6, characterized in that: the center of the one end that carries on the back with spacing post (26) on pressure disk (21) is equipped with output shaft (24), the position that is close to pressure disk (21) terminal surface on the global of output shaft (24) is equipped with one and stretches shaft shoulder (25) that set up along radial outside protrusion, the middle part of pressure thick stick (22) is equipped with semicircular flexion, semicircular flexion's inner arc diameter with the diameter of output shaft (24) is unanimous, semicircular flexion card is established on output shaft (24), and semicircular flexion's both sides respectively with shaft shoulder (25) and pressure disk (21) terminal surface laminating.

8. The tool for a portable vehicle according to claim 1, characterized in that: the transmission member (30) comprises at least three sections of transmission shafts (31), the transmission shafts (31) are connected through universal joints (32), and quick joints (33) are arranged at the end parts of the transmission shafts (31) at two ends.

9. The tool for a portable vehicle according to claim 8, characterized in that: the quick connector (33) comprises a sleeve (331), a square hole is formed in the center of the sleeve (331), sliding grooves (332) which are in one-to-one correspondence with four side walls of the square hole are formed in the outer wall of the sleeve (331), the length direction of each sliding groove (332) is parallel to the axis of the sleeve (331), through holes which penetrate through the wall of the sleeve (331) are formed in the groove bottoms of the sliding grooves (332), steel balls (334) are arranged in the through holes, the diameter of each steel ball (334) is larger than the thickness from the groove bottom to the straight wall of the square hole of the sliding groove (332), push blocks (333) are arranged in the sliding grooves (332), the push blocks (333) are in sliding fit with the sliding grooves (332), a first matching surface and a second matching surface are arranged on one side, opposite to the through holes, of each push block (333) along the length direction of the sliding groove (332), the first matching surface is matched with the groove bottom of the sliding groove (332), the first matching surface and the second matching surface are transited through a slope surface; the outer ring surface of the sleeve (331) is further provided with a retainer ring (335), a pressure spring (336) is arranged between the retainer ring (335) and the push block (333), the retainer ring (335) and the pressure spring (336) are located at one end of the push block (333) where the first matching surface is located, and the retainer ring (335) is in threaded connection with the sleeve (331).