60 results about "Tire maintenance" patented technology

The invention discloses airplane wheel disassembly and assembly auxiliary equipment for civil aircraft maintenance, and relates to the technical field of tire maintenance devices.The airplane wheel disassembly and assembly auxiliary equipment comprises a traction frame body, a protruding part is inwards formed in the middle of the traction frame body, a first hydraulic jack is arranged on the protruding part, and a supporting frame is arranged at the output end of the first hydraulic jack; vertical supporting plates are arranged on the two sides of the supporting frame, combination plates are arranged on the vertical supporting plates on the two sides, transverse plates are arranged on the combination plates, supporting rods are symmetrically arranged on the transverse plates on the two sides respectively, and arc-shaped plates are arranged on the upper end faces of the supporting rods on the two sides. According to the lifting function of the airplane tire dismounting device, the airplane tire can be lifted upwards in the dismounting process, so that the gravity of the airplane tire cannot act on a fixing bolt, a user can conveniently take down the airplane tire, meanwhile, the airplane tire is rotated through cooperation of a groove-shaped structure, and therefore a worker can conveniently and rapidly maintain the state of the airplane tire.

A tire maintenance support program includes computer-implemented modules including: an information addition module, a graphic arrangement module, a user operation reception module, and a graphic movement module. The information addition module adds, to a tire graphic representing a tire, identification information on the tire, and adds, to a sensor graphic representing a sensor provided in the tire, identification information on the sensor. The graphic arrangement module arranges the tire graphic and the sensor graphic in the display screen based on axle arrangement information. The user operation reception module receives a user operation to move at least one of the tire graphic or the sensor graphic arranged by the graphic arrangement module. The graphic movement module moves at least one of the tire graphic or the sensor graphic according to a mounting position on an axle based on a user operation received by the user operation reception module.

The utility model discloses a vehicle-mounted transfer device for mine vehicle body tire maintenance. The vehicle-mounted transfer device comprises a compartment, a partition assembly which is arranged in the compartment and divides the compartment into a plurality of tire stable loading spaces, and a transfer component which is arranged at a vehicle door on the rear side of the compartment and transfers tires into the compartment. After the compartment is separated by the separation assembly, each loading space is matched with the width of a tire, so that the tire can be embedded into the loading space of the compartment and can be directly limited, and the problems of operation difficulty and breakage caused by binding through a rope at present are effectively solved on the basis of solving the problem of tire shaking; meanwhile, the tire can be quickly assembled and disassembled. And the compartment is connected with the ground through the transfer component, so that the tires on the ground can be transferred into the compartment, and the tires in the compartment can be quickly transferred to the ground for maintenance or assembly, thereby effectively solving the problem of smooth transfer of the tires between the compartment and the ground in an environment without hoisting equipment.

A system and method for unseating the bead of a pneumatic tire from a wheel that can include a ram, a lever, and a securing bar. The ram can be positioned on the bead of the tire. Pressure or force can be applied to the lever which in turn can apply pressure to the bead of the tire, breaking the seal between the bead of the tire and the wheel.

The invention provides a vehicle tire state detection method and device, equipment and a storage medium. The method comprises the following steps: acquiring a forward tread image of a tire to be detected and a lateral tread image of the tire; determining wear degree information of the tire according to the forward tread image and the lateral tread image of the tire; and obtaining a tire maintenance record of the to-be-detected vehicle, and determining the state of the to-be-detected tire according to the tire maintenance record and the wear degree information of the tire, the state of the tire including a concerned state and / or a to-be-replaced state. According to the method, the accuracy of the vehicle tire state detection method is improved.

Method for measuring a tire comprising a substantially continuous shoulder block and at least two substantially circumferential grooves, a database associating tires and geometric data, including the identification of two points located directly within the grooves to determine a third point from which a distance measurement to the tread surface is taken, this distance being compared to a threshold to initiate a maintenance operation. Figure for the abstract: Fig 1

The invention provides a transposition decision-making method and device based on tire wear balance and a medium, and belongs to the technical field of vehicles. The method comprises the following steps: extracting and determining wear characteristics according to a driving mode, vehicle running parameters and current wear depth parameters of each tire; and according to the wear characteristics, constructing a wheel wear prediction model. According to the wheel wear prediction model and the current wear depth parameter, the predicted wear depth and the predicted eccentric wear index of each tire are determined, and according to the predicted wear depth of each tire, the current wear balance early warning state is determined. And when the wear balance early warning state is a state needing transposition evaluation, obtaining a predicted wear depth and a predicted eccentric wear index corresponding to each set transposition strategy so as to determine an optimal transposition strategy for the current vehicle from the plurality of set transposition strategies. The optimal tire transposition scheme can be effectively screened, invalid transposition or tire aggravated wear is avoided, intelligent tire maintenance is achieved, and the intelligent degree and practicability of tire transposition are improved.

The utility model provides a tire lifting device and tire overhauling equipment, and the tire lifting device comprises a base which comprises a base and a vertical seat arranged on the base; the lifting mechanism is arranged on the vertical seat; the limiting device is arranged on the vertical base and located on the upper side of the lifting mechanism, can ascend or descend in the length direction of the vertical base and can rotate relative to the vertical base; the limiting device and the lifting mechanism are arranged in a linkage mode through a linkage mechanism, the lifting mechanism is in linkage with the limiting device to descend under the ascending condition, and the lifting mechanism is in linkage with the limiting device to ascend under the descending condition; the power output end of the power device is connected with the lifting mechanism, and the power device is connected with the power source through a limiting device; and under the condition that the limiting device rotates to the first limiting angle, connection between the power device and the power source is cut off. Tedious manual operation is avoided, and tire lifting can be efficiently and conveniently achieved.

The utility model relates to the technical field of tire maintenance tools, and discloses a portable depression bar installer which comprises two seamless steel pipes, one end of each seamless steel pipe is fixedly connected with three contact blocks, the other end of each seamless steel pipe is fixedly connected with a sleeve, the interior of each sleeve is in threaded connection with a screw, and the other end of each seamless steel pipe is fixedly connected with a nut. Wherein the outer wall of one seamless steel pipe is fixedly connected with a telescopic mechanism, the telescopic mechanism comprises a sleeve, one end of the sleeve is fixedly connected to the outer wall of one seamless steel pipe, and the inner wall of the other end of the sleeve is detachably connected with a square pipe; and the other end of the square tube is fixedly connected to the outer wall of the other seamless steel tube. According to the pressing strip installation device, the pressing strip can be conveniently installed at the designated position, the extrusion degree is accurately controlled, it is guaranteed that the installation position of the pressing strip is accurate, stable and even extrusion force can be provided, the pressing strip is installed more firmly, the installation quality and efficiency are improved, and manual operation is saved.

The utility model relates to a large tire sidewall opening device which comprises a cuboid frame composed of transverse rods, vertical rods and vertical rods, and tires are placed between the transverse rods; a fixing assembly for fixing a tire sidewall opening is arranged on one side of the frame, and an opening assembly for opening the tire sidewall opening is hinged to the other side of the frame. A long-strip-shaped handle is arranged on the opening assembly, a fixing rod corresponding to the handle is arranged on the vertical rod, and the handle and the fixing rod are positioned through a buckle. The fixing assembly and the opening assembly each comprise a pair of vertical pipes and a transverse pipe between the vertical pipes, and fixing pieces such as hooks are arranged on the transverse pipes and can be conveniently connected with tire openings in a hanging mode. The tail end of the handle can be connected with an extension rod to increase torque, the extension rod can be provided with a protective rubber sleeve, the surface of the strip-shaped handle can be provided with anti-skid lines, and the bottom of the vertical rod is connected with a movable support to adapt to different terrains. The device is simple in structure, convenient to operate and capable of effectively improving the opening efficiency and safety in the large tire maintenance process.

The utility model relates to the field of tire maintenance tools, and aims to solve the problems of potential safety hazards in maintenance of tires with wheel hubs and rim locking rings and tire fixation. The auxiliary device comprises a cross-shaped base, a supporting column is arranged in the center of the cross-shaped base, and tires sleeve the supporting column. First and second supporting frames are arranged on two sides of the base and are respectively hinged with first and second limiting plates, and semicircular notches at free ends of the two limiting plates can be clamped with the supporting columns. The supporting column is rotationally sleeved with an adjusting column, the tire is in interference fit with the adjusting column, and the adjusting column is provided with a limiting bolt. In addition, the first limiting plate is provided with a clamping protruding block, the second limiting plate is provided with a clamping groove, the outer wall of the adjusting column is provided with threads, and three limiting rings are assembled. By means of cooperation of multiple structures, the tire is firmly fixed, the risk that a steel ring jumps out is effectively reduced, maintenance safety is guaranteed, the device can be used in cooperation with a tire changer, and maintenance efficiency is improved.

The utility model belongs to the field of the tire repair and expansion technology, concretely is a kind of portable tire expander, including control handle, the side wall of control handle is fixedly connected with limiting rod;Two the end of the limiting rod far from control handle is fixedly connected with fixed block;The side wall of control handle is slidably connected with sliding rod;The end of sliding rod is fixedly connected with movable block;The side wall of control handle is rotatably connected with pressing block, and the end of pressing block is rotatably connected with push block;The inside of push block is fixedly connected with first limit block;The utility model is pushed sliding rod by setting pressing block, push block, first limit block, sets stop block, second limit block to avoid sliding rod reverse movement, simultaneously with the help of first U type claw and second U type claw tire is dug, it is favorable to realize the tire digging action of convenient, it is favorable to promote the tire maintenance rate of staff.

The utility model relates to a tire dismounting cart, and belongs to the field of tire dismounting equipment. The structure comprises a base (1) and a rack, the rack is arranged at the upper end of the base (1), the rack comprises positioning plates (8), a lifting assembly (4) and a connecting beam (9), the positioning plates (8) are vertically arranged, arc-shaped openings are formed in the upper ends of the positioning plates (8), the number of the positioning plates (8) is at least two, the positioning plates (8) are arranged at intervals, and the positioning plates (8) are connected into a whole through the connecting beam (9). The lifting assembly (4) can drive the positioning plate (8) to move in the height direction of the base (1). According to the structure, the lifting assembly (4) drives the positioning plate (8) to move in the height direction of the base (1) to make direct contact with a tire, the tire is supported through the arc-shaped opening of the positioning plate (8), and the base (1) is pushed to separate the tire from a vehicle. The problems that when an existing large-size tire is maintained, dismounting and mounting are not convenient, and safety accidents are likely to happen are solved.

The utility model relates to a height-adjustable movable tire screw disassembling and assembling machine for a passenger car. Universal wheels are arranged at four corners below the base, convenient movement is achieved through screw fastening, and the upper portion of the base is welded to a support to form a bottom support. The supporting plate is of a double-layer structure, and a middle rubber pad is pasted through glue to absorb shock and protect the base and the lifting rod. The sliding belt is embedded into the clamping groove of the supporting plate, and the electric wrench vertically moves on the sliding belt through the special clamp. In the middle of the lifting rod, a flange at the upper end is connected with a supporting plate, a bracket is welded at the lower end, and one side enters a chute to keep stable; the bottom end of the hydraulic rod is connected with a spring and connected with a pedal rod through a connecting rod, the pedal rod enables the hydraulic rod to ascend and descend, and the height of the electric wrench is accurately adjusted to adapt to dismounting of different passenger car tire screws. The disassembling and assembling machine is flexible and convenient to move, accurate in height adjustment, good in shock absorption and easy to operate, and the passenger car tire maintenance efficiency and quality can be remarkably improved.

The application provides a diagonal retreading tire toe opening device and process, wherein the diagonal retreading tire toe opening device comprises a mounting table, one side of the mounting table is provided with a supporting pipe, one side of the supporting pipe is provided with a pushing assembly, the pushing assembly comprises a hydraulic cylinder, a nut and a plurality of rubber plugs, a supporting box is slidably arranged in the supporting pipe, a plurality of jacking assemblies are arranged on the outer side of the supporting box, a plurality of outer grooves are formed on the outer side of the supporting pipe, and a clamping assembly is arranged in each of the outer grooves. The pushing assembly and the supporting box are matched, the plurality of jacking assemblies control the plurality of clamping assemblies to support and protect the positions of the tire toe that need to be perforated, the damage to the tire is reduced, the perforating assembly can perforate the plurality of positions of the tire toe that are supported and protected at one time, the tire maintenance speed is improved, the time cost investment is reduced, the holes are regularly distributed, and the overall appearance of the tire is less damaged.

The invention belongs to the technical field of AGV equipment management, and particularly discloses a tire management method and system for a port AGV, a terminal and a medium. Comprising the steps that tire information of all AGVs of a motorcade is obtained, and the tire information comprises tire pressure, abrasion and damage information; when it is detected that tire abrasion exceeds the limit, and tire pressure is abnormal or damaged, alarm information is generated; establishing a tire wear prediction model based on the historical mileage and load information of the AGV, performing dynamic prediction and alarm judgment on the tire wear state, and determining the maintenance priority; and the target AGV is scheduled to a tire maintenance area according to the maintenance priority in combination with a port operation plan, inflation and deflation or tire replacement operation is executed, and updated data is synchronized to a motorcade tire management end after the operation is completed. According to the invention, real-time monitoring, intelligent prediction, automatic scheduling and unmanned maintenance of port AGV tires are realized, and equipment safety and port area operation efficiency are improved.

The utility model discloses a tool for dismounting and mounting a tire in a short distance, which relates to the technical field of tire maintenance equipment and comprises a movable support, two tire supports and a hydraulic jack, the two tire supports are respectively mounted on two sides of the movable support, one end of each tire support is rotatably connected with the movable support, and the other end of each tire support is rotatably connected with the hydraulic jack. The other end of the hydraulic jack can be driven by the lifting assembly to move in the vertical direction, the hydraulic jack is fixedly installed on the movable support, a rocker used for driving the hydraulic jack is arranged on the hydraulic jack, and an auxiliary supporting assembly is arranged on the movable support; the tire assembling and transporting device is novel in structure, convenient to use, accurate in positioning and convenient to disassemble, assemble, replace and maintain, solves the problems of low efficiency and high labor cost during tire assembling and transporting, and is suitable for underground trackless equipment.

The utility model belongs to the technical field of tire maintenance equipment, and particularly relates to a tire disassembling and assembling device which comprises a main arm, a sleeve in running fit with a hub rotating shaft is vertically and fixedly arranged on the main arm, a supporting rod is vertically and fixedly connected to one end of the main arm, the axis of the sleeve is parallel to the extending direction of the supporting rod, and a supporting arm is slidably connected into the main arm. The end, away from the supporting rod, of the supporting arm is fixedly connected with an obliquely-arranged supporting plate, the end, close to the supporting rod, of the supporting plate is rotationally connected with a mounting plate, and the other end of the supporting plate is connected with a crow plate. The mounting plate is inserted between the tire and the hub, when the distance between the mounting plate and the sleeve is increased, the mounting plate enables the hole diameter of the inner ring of the tire to be increased, then the tire is mounted on the hub, and time and labor are saved. Moreover, the device is simple in structure and convenient to use, does not need additional corollary equipment, and is favorable for being equipped and used by maintenance personnel.

The invention discloses a forklift tire damping device. The forklift tire damping device comprises an outer rim; the inner rim is connected with the outer rim; the hub is provided with a buffer component, and the buffer component is arranged opposite to the side, away from the outer rim, of the inner rim; the elastic part is arranged between the buffering part and the inner rim and used for achieving damping and buffering through elastic deformation; and the fastening piece is connected with the hub, the inner rim and the outer rim, so that the elastic piece is compressed between the buffer part and the inner rim. The forklift tire damping device is provided with the damping and buffering elastic piece, the impact force borne by the tire can be effectively absorbed, the abrasion of the tire is reduced, the service life of the tire is prolonged, the structure is simple and effective, and the maintenance cost of the tire is reduced.

The present invention relates to the field of tire technology, specifically a disassembly structure, including a wheel hub and a clamp, wherein the wheel hub is provided with a mounting groove inside, and the mounting groove is provided with a clamp inside. The present invention realizes the rapid disassembly and assembly of the resonator by quickly disassembling and assembling the two ends of the clamp, and the resonator can be removed and reused in the event of tire damage by convenient assembly. Compared with the tire using sound-absorbing cotton for sound absorption and noise reduction, the resonant cavity provided in the resonator is used to filter sound waves of a specific frequency. After the sound waves of a specific frequency enter the interior of the resonant cavity, they are reflected and refracted to achieve wheel noise reduction. In addition, by providing resonant cavities of different specifications in the three resonators, the tire noise of different frequency bands can be filtered, thereby achieving the purpose of reducing tire noise without causing any impact on tire maintenance. At the same time, the resonator can effectively reduce the noise of the vehicle tire during driving.

The invention discloses a giant tire intelligent repairing robot and a using method thereof, and belongs to the technical field of mining machinery automation. The giant tire intelligent repairing robot comprises a platform, a U-shaped frame, a repairing arm, a dust remover, a tire support and a control cabinet assembly; the U-shaped frame is of an integrated structure, an infrared detection system, a metal detection system and a short wave ray imaging perspective flaw detector are arranged in the U-shaped frame, the U-shaped frame has an X-ray emission function, and non-blind-area tire detection is achieved. The repairing arm can automatically polish the damaged part, and the dust remover synchronously sucks and removes rubber particles; the control cabinet assembly comprises a PLC (Programmable Logic Controller), an intelligent identification system and a deep learning module, and cooperatively controls the tire to flow among the detection station, the polishing station and the inspection station. The tire maintenance automation and precision are improved, personnel safety is guaranteed, pollution is reduced, and intelligent mine construction is assisted.

The application relates to the technical field of data management, in particular to a tire life cycle monitoring method, which comprises the following steps: reading an RFID label on a tire, acquiring real-time tire data of the tire, comparing the real-time tire data with a pre-set tire threshold value; if the real-time tire data exceeds the tire threshold value, triggering a corresponding alarm mechanism, repairing the tire, calling tire maintenance historical data, predicting a remaining expected service life of the tire based on the tire maintenance historical data, tracking the tire to a recycling station when the tire reaches the remaining expected service life, calling a pre-trained identification model, inputting the real-time tire data into the identification model, acquiring a tire early warning result, generating a corresponding tire state report based on the tire early warning result and tire maintenance historical data collected last time, and pushing the tire state report to a user based on a mobile application program. The application can realize intelligent and efficient management of the tire.

This utility model discloses a tire flipping device, relating to the field of tire flipping technology. It includes a workbench with a flipping structure above it. The flipping structure includes a flipping frame and symmetrical clamping blocks. The symmetrical clamping blocks move on the flipping frame and can clamp and flip a tire on the workbench. The workbench includes a placement plate with a sliding groove. A threaded rod is rotatably connected inside the sliding groove. The flipping structure clamps the tire on the workbench and then flips it, causing the entire tire to flip, facilitating tire maintenance. The spiral rod can tilt the placement plate, adjusting the tilt angle of the tire, thus enabling better and more multi-angle tire maintenance and improving maintenance efficiency.

The utility model belongs to the technical field of motor bus tires, and particularly relates to a motor bus tire technical condition inspection safety operation support which comprises base rods arranged in parallel, supporting rollers are rotationally arranged between the base rods in parallel, side protection frames are arranged on the upper sides of the base rods, and tires are arranged between the upper sides of the supporting rollers. The tire is directly rotated and rubbed between the tire and the supporting rollers, the supporting rollers are driven to rotate, so that the tire rotates, the periphery of the tire is conveniently and quickly checked, the labor intensity of maintenance personnel is greatly reduced, the efficiency of maintenance operation is improved, the tire stably rotates on the supporting rollers, manual rotation is very easy, and the situation that the tire is damaged during pure manual overturning can be effectively avoided. The tire is heavy and not easy to control, so that the phenomenon that the tire turns over and hits people or rolls out is avoided, the safety during tire maintenance and troubleshooting is greatly improved, and the efficient and safe requirements of maintenance operation can be met.

The utility model relates to the technical field of workbenches, in particular to an aircraft tire overhauling workbench which can comprehensively overhaul aircraft tires, is convenient to use and improves working efficiency. Comprising a workbench, a rotary table is installed at the top end of the workbench through a rotating assembly, the rotating assembly comprises a servo motor, a speed reducer and an annular rotating ring, a placing plate is installed at the right end of the top of the rotary table through an angle adjusting assembly, and the angle adjusting assembly comprises a rotating base, a second transmission and a second servo motor; supporting assemblies are installed on the left and right sides of the bottom end of the workbench.

The application discloses a kind of auxiliary equipment for automobile maintenance, belongs to automobile maintenance technical field, its technical key points are: including roller conveyor, the limiting turnover mechanism of being set can be realized to the limiting constraint of different specifications automobile tire, without manual hand fixed, correction, greatly reduce manual operation strength, while can very good complete the turnover operation of automobile tire, greatly shorten tire turnover preparation time, improve the overall operation efficiency of automobile tire maintenance, by the butt joint installation mechanism of being set on the one hand can very good fixed the posture of tire after turnover, greatly reduce tire swing, deviation, slip, dump Problem, on the other hand very good liberation operator's hands, greatly reduce manual labor intensity, while greatly shorten tire alignment, installation operation length, effectively improve the standardization, high efficiency level of tire maintenance operation, with the advantages of convenient conveying butt joint and auxiliary installation maintenance.

The utility model discloses an aircraft tire overhauling device based on turnover positioning, which comprises a tire body, a first positioning block arranged at the inner end of the tire body, a supporting rod arranged at the inner end of the first positioning block, and an adjusting block arranged at the inner end of the supporting rod, a threaded rod is mounted at the inner end of the positioning frame; the horizontal rod is arranged at the inner end of the adjusting block, a protection frame is installed at the outer end of the horizontal rod, and a driven cylinder is arranged at the outer end of the reinforcing frame; and the guide rod is arranged at the outer end of the driving wheel, a motor is arranged at the right end of the guide rod, and a support is installed at the outer end of the guide rod. According to the aircraft tire overhauling device based on overturning positioning, the overturning mechanism is additionally arranged after the tire body is positioned, and compared with the traditional technology, the aircraft tire overhauling device based on overturning positioning has the function of overturning and positioning an aircraft tire, and meanwhile, the aircraft tire can be conveniently overhauled in all directions.

The present invention relates to the field of vehicle maintenance technology, and in particular to a safety inflatable protective device for tire maintenance, comprising a mounting plate and a first electric slide rail, etc.; the mounting plate is provided with a first electric slide rail. The mounting ring and the connecting piece drive the sealing strip 1 to wrap around the tire for one cycle, the tire is wrapped by the sealing strip 1, and the potential energy generated when the tire explodes is absorbed by the connecting piece and the sealing strip 1, thereby preventing the potential energy generated when the tire explodes from impacting objects around the truck. Furthermore, the sealing strip 1 wrapped around the tire is supported by a top block, thereby preventing the potential energy generated after the tire explodes from separating the connecting piece from the mounting ring, causing the sealing strip 1 to detach from the tire, so that the sealing strip 1 can only twist when the connecting piece is separated from the mounting ring, continuously absorbing the potential energy after the tire explosion, and reducing the impact of the potential energy after the tire explosion on surrounding objects.

The utility model belongs to the technical field of tire maintenance, and particularly relates to a tire maintenance lifting machine which comprises a movable bottom frame, and a stand column is fixedly installed on the top of the movable bottom frame. A lifting mechanism is arranged on the back of the stand column and drives the mounting rod to drive the fixing mechanism to vertically move. Wherein the fixing mechanism comprises a shell and a rack, a second motor is fixedly installed on the back of the shell, the second motor drives a gear to be in meshing transmission with the rack, and one end of the rack is fixedly connected with a clamping assembly; the clamping assembly comprises a mounting plate, an air cylinder and a connecting disc, and the air cylinder pushes the connecting disc to vertically move so that the connecting disc can drive the rotating blocking piece to swing through the connecting arm. Under the action of the rack and the gear which are arranged in the shell, the clamping assembly can be driven to be vertically adjusted, so that the fixing mechanism can be suitable for tires of different sizes under the cooperation of the clamping assembly and the air cylinder, and the practicability of the elevator is improved.

The utility model belongs to the field of tire maintenance devices, and particularly relates to an aircraft tire maintenance device which comprises a bottom plate, a vertical plate, a tire main body and a storage shaft, a clamping mechanism is arranged on the bottom plate and comprises two sets of clamping jaws, the clamping jaws are located under the tire body, the bottom ends of the clamping jaws are rotationally connected to the grooves, the grooves are formed in the supporting plate, a plurality of sets of pulleys are fixedly connected to the bottom end of the supporting plate, the pulleys are slidably connected to the sliding grooves, and a connecting plate is fixedly connected to one side of the supporting plate; a second moving block is fixedly connected to the bottom ends of the supporting plates, the second moving block is arranged in a cavity, the cavity is formed in the bottom plate, and the cavity is in threaded connection with a first moving block and the second moving block; and through the structural design of the clamping mechanism, the function of conveniently taking down the tire main body from the storage shaft is achieved.