CN112590459A

CN112590459A - Portable automatic tire dismounting and mounting device

Info

Publication number: CN112590459A
Application number: CN202011577113.XA
Authority: CN
Inventors: 张文文
Original assignee: Nanjing Gefanqi Automobile Products Co ltd
Current assignee: Nanjing Gefanqi Automobile Products Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-04-02

Abstract

The invention discloses a portable automatic tire dismounting and mounting device, which comprises a base, wherein a first sliding cavity with an upward opening is arranged in the upper end surface of the base, a first motor is fixedly arranged on the inner wall of the left side of the first sliding cavity, a first threaded shaft with the other end rotatably connected to the inner wall of the right side of the first sliding cavity is rotatably arranged on the right end surface of the first motor, and a first sliding block slidably connected in the first sliding cavity is in threaded connection with the first threaded shaft.

Description

Portable automatic tire dismounting and mounting device

Technical Field

The invention relates to the field of vehicle tires, in particular to a portable tire automatic dismounting and mounting device.

Background

When the vehicle tire presses sharp objects such as nails, glass slag and the like on a road surface, the surface of the tire is easy to be punctured, if the vehicle continues to run, the driving safety system of the vehicle can be lowered, danger is easy to occur, and therefore the tire needs to be replaced in time.

Disclosure of Invention

The invention aims to solve the technical problem of providing a portable automatic tire dismounting and mounting device, which overcomes the problems of time and labor waste and the like of manual tyre dismounting and mounting.

The invention is realized by the following technical scheme.

The invention relates to a portable automatic tire dismounting and mounting device, which comprises a base, wherein a first sliding cavity with an upward opening is arranged in the upper end surface of the base, a first motor is fixedly arranged on the inner wall of the left side of the first sliding cavity, a first threaded shaft with the other end rotatably connected to the inner wall of the right side of the first sliding cavity is rotatably arranged on the right end surface of the first motor, a first sliding block slidably connected in the first sliding cavity is in threaded connection with the first threaded shaft, a sliding transmission block slidably connected to the upper end surface of the base is fixedly arranged on the upper end surface of the first sliding block, a rod moving cavity which is communicated from front to back is arranged in the sliding transmission block, a second sliding cavity with an upward opening is arranged in the inner wall of the lower side of the rod moving cavity, a third sliding cavity communicated with the outer side of the sliding transmission block is arranged in the right end surface of the sliding transmission block, and a moving mechanism is arranged in the third sliding cavity, the moving mechanism comprises a second threaded shaft which is rotatably connected to the inner walls of the left side and the right side of the second sliding cavity, a second sliding block which is connected into the second sliding cavity in a sliding manner is arranged on the second threaded shaft in a threaded connection manner, the moving mechanism comprises a third sliding block which is connected into the third sliding cavity in a sliding manner, the left end surface of the third sliding block is hinged with a sliding block connecting rod of which the other end is hinged with the upper end surface of the second sliding block, the right end surface of the third sliding block is fixedly provided with a longitudinal sliding plate which is connected into the third sliding cavity in a sliding manner, the right end of the longitudinal sliding plate extends out of the third sliding cavity, the upper end surface of the longitudinal sliding plate is fixedly provided with a working block, a hydraulic working cavity which is positioned on the right side of the first sliding cavity and has an upward opening is further arranged in the upper end surface, the upper end surface of the hydraulic cylinder is hydraulically connected with a hydraulic jack;

the lower side of the third rotating shaft is provided with a fifth rotating shaft which is rotatably connected to the inner wall of the left side of the fourth transmission cavity, the right end face of the working block is internally provided with five adjusting cavities with openings facing to the right by taking the fifth rotating shaft as a circle center and a circumferential array, the left side of each adjusting cavity is provided with a fifth sliding cavity positioned in the working block, the inner wall of the upper side and the lower side of each fifth sliding cavity is rotated to form a third threaded shaft, the third threaded shaft is provided with a fourth sliding block which is slidably connected in the fifth sliding cavity in a threaded connection manner, the right end face of the fourth sliding block is fixedly provided with a third motor positioned in the fifth sliding cavity, the right end face of the third motor is rotatably provided with a sixth rotating shaft positioned in the adjusting cavity, the adjusting cavity is internally provided with a clamping and dismounting mechanism, the clamping and dismounting mechanism comprises a dismounting and clamping block which is fixedly connected to the right end of the sixth rotating, dismantle and to be equipped with the dismantlement chamber that the opening is towards the right side in the tight piece of clamp, it is equipped with to dismantle chamber left side longitudinal symmetry and is located dismantle the sixth sliding chamber in the tight piece of clamp, every the sixth sliding chamber is kept away from the fixed second electro-magnet that is equipped with on the sixth rotating shaft side inner wall, the sixth sliding chamber is close the fixed second compression spring that is equipped with on the sixth rotating shaft side inner wall, the fixed sliding connection that is equipped with in second compression spring other end is in the second electromagnetism sliding block in the sixth sliding chamber, the fixed clamp splice that is equipped with of second electromagnetism sliding block right-hand member face, the clamp splice other end stretches into dismantle the intracavity.

Preferably, a first transmission cavity located in the sliding transmission block is arranged on the left side of the second sliding cavity, a second transmission cavity located in the sliding transmission block is arranged on the right side of the first transmission cavity, a third transmission cavity located in the working block is arranged on the upper side of the second transmission cavity, a fourth sliding cavity located in the working block is arranged on the right side of the third transmission cavity, a fourth transmission cavity located in the working block is arranged on the right side of the fourth sliding cavity, the left end of the second sliding block extends into the first transmission cavity and is connected to the inner wall of the left side of the first transmission cavity in a rotating manner, a driven belt wheel is fixedly arranged on the second threaded shaft, a first rotating shaft rotatably connected to the inner wall of the left side of the first transmission cavity is arranged on the upper side of the driven belt wheel, a driving belt wheel is fixedly arranged on the first rotating shaft, and the driving belt wheel is in friction connection with the driven belt wheel through a conveying belt, the right end of the first rotating shaft extends into the second transmission cavity and is fixedly provided with a first bevel gear, the inner wall of the upper side of the third transmission cavity is rotatably provided with a spline shaft, the lower end of the spline shaft extends out of the third transmission cavity, the lower end of the spline shaft is connected with a second rotating shaft in a threaded manner, the lower end of the second rotating shaft extends into the second transmission cavity and is rotatably connected with the inner wall of the lower side of the second transmission cavity, the second rotating shaft is fixedly provided with a second bevel gear meshed with the first bevel gear, the inner wall of the upper side of the fourth sliding cavity is fixedly provided with a first electromagnet, the inner wall of the lower side of the fourth sliding cavity is fixedly provided with a first compression spring, the other end of the first compression spring is fixedly provided with a first magnetic slide block which is slidably connected into the fourth sliding block, and the right end face of the first magnetic slide block is fixedly provided, the right end face of the second motor is provided with a third rotating shaft located in a fourth transmission cavity in a rotating mode, a first transmission gear is fixedly arranged on the third rotating shaft, a fourth rotating shaft rotatably connected to the inner wall of the right side of the fourth transmission cavity is arranged on the upper side of the third rotating shaft, a second transmission gear capable of being meshed with the first transmission gear is fixedly arranged on the fourth rotating shaft, the second transmission gear and the first transmission gear are in a meshed state in an initial state, the left end of the fourth rotating shaft stretches into the third transmission cavity and is fixedly provided with a third bevel gear, and a fourth bevel gear connected with the third bevel gear in a meshed mode is fixedly arranged on the fourth bevel gear.

Preferably, a fifth transmission cavity located in the working block is arranged on the right side of the fourth transmission cavity, a third transmission gear capable of being meshed with the first transmission gear is fixedly arranged on the fifth rotating shaft, the right end of the fifth rotating shaft extends into the fifth transmission cavity and is fixedly provided with a fifth bevel gear, and a sixth bevel gear meshed with the fifth bevel gear is fixedly arranged at the end, close to the fifth transmission cavity, of each third threaded shaft.

The invention has the beneficial effects that: the invention drives the sliding block and the longitudinal sliding plate to move under the driving of the motor, thereby achieving the effect of enabling the working block to be close to a target tire, completing the disassembly of the screw on the hub through the matching of the motor and the electromagnet, automatically installing the tire after the tire is replaced, thereby achieving the effect of automatically disassembling and installing the tire, and saving time and labor.

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.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the embodiment of the present invention at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the embodiment of the present invention at B in FIG. 1;

FIG. 4 is a schematic view of the embodiment of the present invention in the direction of C-C in FIG. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, 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.

With reference to fig. 1-4, the portable automatic tire dismounting and mounting device includes a base 11, a first sliding cavity 58 with an upward opening is disposed in an upper end face of the base 11, a first motor 28 is fixedly disposed on a left inner wall of the first sliding cavity 58, a first threaded shaft 30 with the other end rotatably connected to a right inner wall of the first sliding cavity 58 is rotatably disposed on a right end face of the first motor 28, a first sliding block 29 slidably connected to the first sliding cavity 58 is disposed on the first threaded shaft 30 in a threaded connection manner, a sliding transmission block 12 slidably connected to an upper end face of the base 11 is fixedly disposed on an upper end face of the first sliding block 29, a rod moving cavity 61 penetrating through the sliding transmission block 12 from front to back is disposed in the sliding transmission block 12, a second sliding cavity 57 with an upward opening is disposed in a lower inner wall of the rod moving cavity 61, and a third sliding cavity 59 communicating the rod moving cavity 61 and an outer side of the sliding transmission block 12 is disposed in a right end face of the sliding transmission, a moving mechanism 901 is arranged in the third sliding cavity 59 and the second sliding cavity 57, the moving mechanism 901 comprises a second threaded shaft 13 rotatably connected to the inner walls of the left and right sides of the second sliding cavity 57, a second slider 27 slidably connected in the second sliding cavity 57 is arranged on the second threaded shaft 13 in a threaded connection manner, the moving mechanism 901 comprises a third slider 25 slidably connected in the third sliding cavity 59, the left end surface of the third slider 25 is hinged with a slider connecting rod 26, the other end of the slider connecting rod is hinged with the upper end surface of the second slider 27, the right end surface of the third slider 25 is fixedly provided with a longitudinal sliding plate 23 slidably connected in the third sliding cavity 59, the right end of the longitudinal sliding plate 23 extends out of the third sliding cavity 59 and is fixedly provided with a working block 18 on the upper end surface thereof, a hydraulic working cavity 60 with an upward opening and positioned on the right side of the first sliding cavity 58 is further arranged in the upper end surface of the base 11, the moving mechanism 901 further comprises a hydraulic cylinder 32 fixedly connected to the inner wall of the lower side of the hydraulic working cavity 60, a hydraulic jack 31 is arranged on the upper end face of the hydraulic cylinder 32 in a hydraulic connection manner, when the device is required to replace a tire, the device needs to be manually placed on a subway surface, the hydraulic jack 31 is positioned at the bottom of the train, then the hydraulic cylinder 32 works to drive the hydraulic jack 31 to ascend, the hydraulic jack 31 ascends to jack the train to a certain height, then the first motor 28 works to drive the first threaded shaft 30 to rotate, the first threaded shaft 30 rotates to drive the first sliding block 29 to move to the right, the first sliding block 29 moves to drive the sliding transmission block 12 to move to the right, the sliding transmission block 12 moves to drive the working block 18 to move to the right to a corresponding position, and then the second threaded shaft 13 rotates to drive the second sliding block 27 to move to the right, the second slide block 27 moves to the right to drive the third slide block 25 to move upwards in the third slide cavity 59 through the slide block connecting rod 26, and the third slide cavity 59 moves upwards to drive the working block 18 to move upwards to a corresponding height through the longitudinal slide plate 23;

a fifth rotating shaft 22 rotatably connected to the inner wall of the left side of the fourth transmission cavity 64 is arranged on the lower side of the third rotating shaft 44, five adjusting cavities 67 with openings facing to the right are arranged in the right end face of the working block 18 in a circumferential array by taking the fifth rotating shaft 22 as a circle center, a fifth sliding cavity 66 with openings facing to the right is arranged on the left side of each adjusting cavity 67, a third threaded shaft 19 is arranged on the inner wall of the upper side and the lower side of the fifth sliding cavity 66 in a rotating manner, a fourth sliding block 48 slidably connected in the fifth sliding cavity 66 is arranged on the third threaded shaft 19 in a threaded manner, a third motor 49 located in the fifth sliding cavity 66 is fixedly arranged on the right end face of the fourth sliding block 48, a sixth rotating shaft 50 located in the adjusting cavity 67 is rotatably arranged on the right end face of the third motor 49, a clamping and detaching mechanism 902 is arranged in the adjusting cavity 67, the clamping and detaching mechanism 902 comprises a detaching block 51 fixedly connected to the right end of the sixth rotating shaft 50, the right end part of the disassembly clamping block 51 extends out of the adjusting cavity 67, a disassembly cavity 69 with an opening facing to the right is arranged in the disassembly clamping block 51, sixth sliding cavities 68 which are positioned in the disassembly clamping block 51 are symmetrically arranged on the left side of the disassembly cavity 69 in an up-down manner, a second electromagnet 52 is fixedly arranged on the inner wall of the sixth sliding cavity 68 far away from the side of the sixth rotating shaft 50, a second compression spring 55 is fixedly arranged on the inner wall of the sixth sliding cavity 68 close to the side of the sixth rotating shaft 50, the other end of the second compression spring 55 is fixedly provided with a second electromagnetic sliding block 53 which is slidably connected in the sixth sliding cavity 68, a clamping block 54 is fixedly arranged on the right end face of the second electromagnetic sliding block 53, the other end of the clamping block 54 extends into the disassembly cavity 69, and when the working block 18 rises to a corresponding height, a user rotates the third threaded shaft 19 through a control switch, the third screw shaft 19 rotates to drive the fourth slide block 48 to move, the fourth slide block 48 moves to drive the third motor 49 to move, the third motor 49 moves to drive the detaching clamp block 51 to move through the sixth rotating shaft 50, when the detaching clamp block 51 moves until the wheel screw is just positioned between the two clamp blocks 54, the sliding drive block 12 continues to move to the right under the action of the first motor 28, the sliding drive block 12 moves to the right to drive the working block 18 to move to the right, so that the hub screw enters the detaching cavity 69, then the second electromagnet 52 works to repel the second electromagnetic slide block 53 to move relatively and compress the second compression spring 55, the second electromagnetic slide block 53 moves to drive the clamp blocks 54 to move relatively so as to clamp the hub screw positioned between the two clamp blocks 54, and then, the third motor 49 works to drive the sixth rotating shaft 50 to rotate, the sixth rotating shaft 50 rotates to drive the dismounting and clamping block 51 to rotate, the dismounting and clamping block 51 rotates to dismount the hub screw, then, the first motor 28 works reversely to drive the working block 18 to reset, then, a user can take the tire down, the hub screw is still clamped in the dismounting cavity 69 by the two clamping blocks 54, then, a new tire is placed on the device corresponding to five hub screws clamped between the clamping blocks 54, then, the first motor 28 works to push the working block 18 to move right again, so that the new tire is embedded into the vehicle body, and then, the third motor 49 works to drive the dismounting and clamping block 51 to rotate, so that the hub screw is screwed, and then, the tire is replaced.

Advantageously, a first transmission cavity 56 located in the sliding transmission block 12 is provided on the left side of the second sliding cavity 57, a second transmission cavity 62 located in the sliding transmission block 12 is provided on the right side of the first transmission cavity 56, a third transmission cavity 63 located in the working block 18 is provided on the upper side of the second transmission cavity 62, a fourth sliding cavity 65 located in the working block 18 is provided on the right side of the third transmission cavity 63, a fourth transmission cavity 64 located in the working block 18 is provided on the right side of the fourth sliding cavity 65, the left end of the second slider 27 extends into the first transmission cavity 56 and is rotatably connected to the inner wall of the left side of the first transmission cavity 56, a driven pulley 14 is fixedly provided on the second threaded shaft 13, a first rotating shaft 17 rotatably connected to the inner wall of the left side of the first transmission cavity 56 is provided on the upper side of the driven pulley 14, a driving pulley 16 is fixedly provided on the first rotating shaft 17, the driving pulley 16 is in friction connection with the driven pulley 14 through a conveyor belt 15, the right end of the first rotating shaft 17 extends into the second transmission cavity 62 and is fixedly provided with a first bevel gear 33, the inner wall of the upper side of the third transmission cavity 63 is rotatably provided with a spline shaft 36, the lower end of the spline shaft 36 extends out of the third transmission cavity 63, the lower end of the spline shaft 36 is in threaded connection with a second rotating shaft 35, the lower end of the second rotating shaft 35 extends into the second transmission cavity 62 and is rotatably connected to the inner wall of the lower side of the second transmission cavity 62, the second rotating shaft 35 is fixedly provided with a second bevel gear 34 engaged with the first bevel gear 33, the inner wall of the upper side of the fourth sliding cavity 65 is fixedly provided with a first electromagnet 41, the inner wall of the lower side of the fourth sliding cavity 65 is fixedly provided with a first compression spring 46, the other end of the first compression spring 46 is fixedly provided with a first magnetic sliding block 42 slidably connected in the fourth, a second motor 43 positioned in the fourth sliding cavity 65 is fixedly arranged on the right end surface of the first magnetic slide block 42, the right end face of the second motor 43 is rotatably provided with a third rotating shaft 44 positioned in the fourth transmission cavity 64, a first transmission gear 45 is fixedly arranged on the third rotating shaft 44, a fourth rotating shaft 39 which is rotatably connected with the inner wall of the right side of the fourth transmission cavity 64 is arranged on the upper side of the third rotating shaft 44, a second transmission gear 40 which can be meshed with the first transmission gear 45 is fixedly arranged on the fourth rotating shaft 39, and in an initial state, the second transmission gear 40 is engaged with the first transmission gear 45, the left end of the fourth rotating shaft 39 extends into the third transmission cavity 63 and is fixedly provided with a third bevel gear 38, a fourth bevel gear 37 in meshed connection with the third bevel gear 38 is fixedly arranged on the fourth bevel gear 37.

Advantageously, a fifth transmission chamber 70 is arranged at the right side of the fourth transmission chamber 64 and located in the working block 18, a third transmission gear 47 capable of meshing with the first transmission gear 45 is fixedly arranged on the fifth rotating shaft 22, the right end of the fifth rotating shaft 22 extends into the fifth transmission chamber 70 and is fixedly provided with a fifth bevel gear 21, and each third threaded shaft 19 extends into the fifth transmission chamber 70 near the end of the fifth transmission chamber 70 and is fixedly provided with a sixth bevel gear 20 in meshing connection with the fifth bevel gear 21.

In the initial state, the first compression spring 46 and the second compression spring 55 are in the normal state.

Application method

When this device of needs carries out the tire and changes, need artifically place this device on the subway face, and hydraulic jack 31 is located the vehicle bottom, afterwards, and hydraulic cylinder 32 work drives hydraulic jack 31 and rises, and hydraulic jack 31 rises and jack-up the car by a take the altitude.

Then, the first motor 28 operates to drive the first threaded shaft 30 to rotate, the first threaded shaft 30 rotates to drive the first slider 29 to move to the right, the first slider 29 moves to the right to drive the sliding transmission block 12 to move to the right, the sliding transmission block 12 moves to the right to drive the working block 18 to move to the corresponding position, then, the second motor 43 operates to drive the third rotating shaft 44 to rotate, the third rotating shaft 44 rotates to drive the first transmission gear 45 and the second transmission gear 40 to rotate in turn, the second transmission gear 40 rotates to drive the fourth rotating shaft 39 and the third bevel gear 38 to rotate in turn, the third bevel gear 38 rotates to drive the fourth bevel gear 37 and the spline shaft 36 to rotate in turn, the spline shaft 36 rotates to drive the second rotating shaft 35 and the second bevel gear 34 to rotate in turn, the second bevel gear 34 rotates to drive the first bevel gear 33 and the first rotating shaft 17 to rotate in turn, the first rotating shaft 17 rotates to drive the driving pulley 16 to rotate, the driving belt wheel 16 rotates to drive the driven belt wheel 14 to rotate through the conveying belt 15, the driven belt wheel 14 rotates to drive the second threaded shaft 13 to rotate, the second threaded shaft 13 rotates to drive the second sliding block 27 to move rightwards, the second sliding block 27 moves rightwards to drive the third sliding block 25 to move upwards in the third sliding cavity 59 through the sliding block connecting rod 26, and the third sliding cavity 59 moves upwards to drive the working block 18 to move upwards to a corresponding height through the longitudinal sliding plate 23.

When the working block 18 is lifted to a corresponding height, the first electromagnet 41 is magnetized to repel the first magnetic slide block 42 and moves down to compress the first compression spring 46, the first magnetic slide block 42 moves down to drive the second motor 43 to move down, the second motor 43 moves down to drive the third rotating shaft 44 to move down, the third rotating shaft 44 moves down to drive the first transmission gear 45 to move down to be meshed with the third transmission gear 47, then, the second motor 43 works to drive the third rotating shaft 44 to rotate, the third rotating shaft 44 rotates to drive the first transmission gear 45 and the third transmission gear 47 to rotate in turn, the third transmission gear 47 rotates to drive the fifth rotating shaft 22 and the fifth bevel gear 21 to rotate in turn, the fifth bevel gear 21 rotates to drive the sixth bevel gear 20 to rotate, the sixth bevel gear 20 rotates to drive the third threaded shaft 19 to rotate, and a user drives the fourth slide block 48 to move by rotating the third threaded shaft 19 through a control switch, the fourth sliding block 48 moves to drive the third motor 49 to move, the third motor 49 moves to drive the detaching clamping block 51 to move through the sixth rotating shaft 50, when the detaching clamping block 51 moves to the position where the wheel screw is just located between the two clamping blocks 54, the sliding transmission block 12 continues to move to the right under the action of the first motor 28, the sliding transmission block 12 moves to the right to drive the working block 18 to move to the right, so that the hub screw enters the detaching cavity 69, then the second electromagnet 52 works to repel the second electromagnetic sliding block 53 to move relatively and compress the second compression spring 55, the second electromagnetic sliding block 53 moves to drive the clamping block 54 to move relatively so as to clamp the hub screw located between the two clamping blocks 54, then the third motor 49 works to drive the sixth rotating shaft 50 to rotate, the sixth rotating shaft 50 rotates to drive the detaching clamping block 51 to rotate, the detaching clamping block 51 rotates to detach the hub screw, and then, the first motor 28 is operated to rotate reversely to drive the working block 18 to reset, then, a user can take the tire down, the hub screw is still clamped in the disassembling cavity 69 by the two clamping blocks 54, then, a new tire is placed on the device corresponding to the five hub screws clamped between the clamping blocks 54, then, the first motor 28 is operated to push the working block 18 to move right again, so that the new tire is embedded into the vehicle body, and then, the third motor 49 is operated to drive the disassembling clamping block 51 to rotate, so that the hub screw is screwed down, and then, the tire replacement is completed.

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 an automatic dismantlement of portable tire and installation device, includes the base, its characterized in that: a first sliding cavity with an upward opening is arranged in the upper end face of the base, a first motor is fixedly arranged on the inner wall of the left side of the first sliding cavity, the right end face of the first motor is rotatably provided with a first threaded shaft with the other end rotatably connected to the inner wall of the right side of the first sliding cavity, a first sliding block which is slidably connected in the first sliding cavity is arranged on the first threaded shaft in a threaded connection manner, a sliding transmission block which is slidably connected to the upper end face of the base is fixedly arranged on the upper end face of the first sliding block, a rod moving cavity which is communicated with the front and the back is arranged in the sliding transmission block, a second sliding cavity with an upward opening is arranged in the inner wall of the lower side of the rod moving cavity, a third sliding cavity which is communicated with the outer side of the sliding transmission block is arranged in the right end face of the sliding transmission block, a moving mechanism is arranged in the third sliding cavity and the second sliding cavity, and the moving mechanism comprises a second, the second threaded shaft is provided with a second sliding block in threaded connection and is slidably connected into the second sliding cavity, the moving mechanism comprises a third sliding block slidably connected into the third sliding cavity, the left end face of the third sliding block is hinged with a sliding block connecting rod, the other end of the sliding block connecting rod is hinged with the upper end face of the second sliding block, the right end face of the third sliding block is fixedly provided with a longitudinal sliding plate slidably connected into the third sliding cavity, the right end of the longitudinal sliding plate extends out of the third sliding cavity, the upper end face of the longitudinal sliding plate is fixedly provided with a working block, a hydraulic working cavity with an upward opening is further arranged in the upper end face of the base and is positioned on the right side of the first sliding cavity, the moving mechanism further comprises a hydraulic cylinder fixedly connected to the inner wall of the lower side of the hydraulic working cavity, and the upper end face;

2. A portable tire automatic demounting and mounting device as claimed in claim 1, wherein: the left side of the second sliding cavity is provided with a first transmission cavity positioned in the sliding transmission block, the right side of the first transmission cavity is provided with a second transmission cavity positioned in the sliding transmission block, the upper side of the second transmission cavity is provided with a third transmission cavity positioned in the working block, the right side of the third transmission cavity is provided with a fourth sliding cavity positioned in the working block, the right side of the fourth sliding cavity is provided with a fourth transmission cavity positioned in the working block, the left end of the second slider extends into the first transmission cavity and is connected to the inner wall of the left side of the first transmission cavity in a rotating way, the second threaded shaft is fixedly provided with a driven pulley, the upper side of the driven pulley is provided with a first rotating shaft which is connected to the inner wall of the left side of the first transmission cavity in a rotating way, the first rotating shaft is fixedly provided with a driving pulley, and the driving pulley is connected with the driven pulley in a friction way through a, the right end of the first rotating shaft extends into the second transmission cavity and is fixedly provided with a first bevel gear, the inner wall of the upper side of the third transmission cavity is rotatably provided with a spline shaft, the lower end of the spline shaft extends out of the third transmission cavity, the lower end of the spline shaft is connected with a second rotating shaft in a threaded manner, the lower end of the second rotating shaft extends into the second transmission cavity and is rotatably connected with the inner wall of the lower side of the second transmission cavity, the second rotating shaft is fixedly provided with a second bevel gear meshed with the first bevel gear, the inner wall of the upper side of the fourth sliding cavity is fixedly provided with a first electromagnet, the inner wall of the lower side of the fourth sliding cavity is fixedly provided with a first compression spring, the other end of the first compression spring is fixedly provided with a first magnetic slide block which is slidably connected into the fourth sliding block, and the right end face of the first magnetic slide block is fixedly provided, the right end face of the second motor is provided with a third rotating shaft located in a fourth transmission cavity in a rotating mode, a first transmission gear is fixedly arranged on the third rotating shaft, a fourth rotating shaft rotatably connected to the inner wall of the right side of the fourth transmission cavity is arranged on the upper side of the third rotating shaft, a second transmission gear capable of being meshed with the first transmission gear is fixedly arranged on the fourth rotating shaft, the second transmission gear and the first transmission gear are in a meshed state in an initial state, the left end of the fourth rotating shaft stretches into the third transmission cavity and is fixedly provided with a third bevel gear, and a fourth bevel gear connected with the third bevel gear in a meshed mode is fixedly arranged on the fourth bevel gear.

3. A portable tire automatic demounting and mounting device as claimed in claim 1, wherein: a fifth transmission cavity located in the working block is arranged on the right side of the fourth transmission cavity, a third transmission gear capable of being meshed with the first transmission gear is fixedly arranged on the fifth rotating shaft, the right end of the fifth rotating shaft extends into the fifth transmission cavity and is fixedly provided with a fifth bevel gear, and each third threaded shaft is close to the end of the fifth transmission cavity and extends into the fifth transmission cavity and is fixedly provided with a sixth bevel gear in meshed connection with the fifth bevel gear.