Tire changer

Abstract

The invention relates to the technical field of tire maintenance equipment, in particular to a tire changer. The tire changer comprises a rotary workbench and a holding and clamping device, the rotary workbench is provided with a rotary seat and a workbench, and the holding and clamping device comprises a support, a holding arm, a first lifting mechanism and a driving mechanism. The support is vertically and slidably connected with the rotating seat, the holding arms are hinged to the support and distributed on the periphery of the workbench, the first lifting mechanism drives the support to move up and down, and the driving mechanism enables the holding arms to hold and clamp tires. In addition, the automatic loading and unloading device is provided with a bracket and a second lifting mechanism, the bracket is lifted to the position between the embracing arms from the ground and located below the tires, the bracket comprises an annular supporting ring, the second lifting mechanism comprises a fixing support, a lifting support and a driver, and the overturning support is rotationally connected with the lifting support and provided with an air spring. The supporting rings can slide to the inner sides of the holding arms through the guide rails. According to the tire dismounting device, the tire dismounting efficiency and safety are improved, and the operation difficulty is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of tire repair equipment, and in particular to a tire disassembly and assembly machine. Background Art

[0002] Tire changers are one of the indispensable and important equipment in automobile repair and maintenance, mainly used for the disassembly and assembly of tires and wheels. With the development of the automobile industry, the number of vehicles has continued to increase, and the demand for tire replacement and repair has also increased. The traditional manual disassembly and assembly method is not only inefficient, but also has high safety risks. Therefore, efficient and safe tire changers have become an urgent need in the modern automobile repair industry, significantly improving the efficiency and safety of repair work.

[0003] In existing tire disassembly and assembly machines, in order to improve work efficiency and ease of operation, the following technical means are usually adopted: first, an automatic tire turning frame is equipped, which can drive the tire to rise and fall, thereby facilitating tire disassembly and assembly; second, a mechanical arm is used for auxiliary operations, such as lifting or lowering the tire by the mechanical arm to reduce the manual burden; third, various auxiliary tools are added, such as wrenches, crowbars, etc., to help maintenance personnel complete the disassembly and assembly tasks more easily. Although these means have improved the working environment of tire disassembly and assembly to a certain extent, there are still some shortcomings.

[0004] However, in the process of the tire gradually separating from the wheel hub, especially when the tire is half-separated or completely separated from the wheel hub, the existing tire disassembly machine will be in an active state, and may cause a large shake under the action of elastic force, or even bounce or fall, which poses a high safety risk. In addition, maintenance personnel need to constantly adjust their posture during operation, which increases physical exertion and operating difficulty, and reduces work efficiency. Summary of the invention

[0005] The present application provides a tire disassembly and assembly machine, which can ensure the stability of the tire during disassembly and assembly to avoid bouncing or falling, and adopts the following technical solutions: A tire disassembly and assembly machine comprises a rotating worktable and a clamping device; The rotary workbench comprises a rotary seat and a workbench arranged on the rotary seat; The clamping device comprises a bracket, an arm, a first lifting mechanism and a driving mechanism; the bracket is arranged on a rotating seat and is vertically slidably connected to the rotating seat; the arm is hinged to the bracket, and an abutment portion for abutting against the wheel surface of the tire is arranged on the arm; at least two arms are arranged and distributed around the workbench; The first lifting mechanism is arranged on the rotating seat and is used to drive the bracket to move up and down; the driving mechanism is used to drive the arm to swing, so that the abutting part abuts against the wheel surface of the tire.

[0006] By adopting the above technical solution, before changing the tire, the holding arm is firstly in contact with the wheel surface of the tire, so as to maintain the stability of the tire. When changing the tire, the tire is changed by the bird head part of the tire changer, so that the upper edge of the tire is separated from the upper edge of the wheel hub. Since a second tire change is required to completely separate the lower edge of the tire from the wheel hub, the tire is driven up by the first lifting mechanism at this time, so that the lower edge of the tire can be in contact with the upper edge of the wheel hub, and the tire is changed again by the bird head. During the whole process of changing the tire, the tire maintains sufficient stability under the clamping action of the holding arm, avoiding the phenomenon of accidental bouncing or falling, thereby improving safety.

[0007] Preferably, the driving mechanism includes a sleeve, a pull rod and a compression spring; the sleeve is vertically arranged and connected to the rotating seat, the pull rod is inserted into the sleeve, one end of the pull rod is rotatably connected to the arm, and the other end is provided with an end plate, and a limiting plate is provided at the upper end of the sleeve; the compression spring is arranged inside the sleeve and sleeved on the pull rod, and the two ends of the compression spring are respectively abutted against the end plate and the limiting plate.

[0008] By adopting the above technical solution, when the first lifting mechanism drives the arm to rise, under the action of the pull rod, the arm flips over and contacts the tire. As the arm continues to rise, the pull rod squeezes the compression spring, and the reaction force of the compression spring acts on the arm, thereby causing the arm to clamp the tire.

[0009] Preferably, the driving mechanism further comprises a tension spring, which is vertically arranged, one end of which is fixedly connected to the sleeve, and the other end of which is fixedly connected to the rotating seat, and the sleeve is vertically movably arranged.

[0010] By adopting the above technical solution, through the cooperation of the tension spring and the compression spring, the stroke of the pull rod can be effectively increased, and it can be ensured that the arm has sufficient tensioning force.

[0011] Preferably, it also includes an automatic loading and unloading device, which includes a bracket and a second lifting mechanism, and the second lifting mechanism is used to lift the bracket from the ground to between multiple arms and below the tire.

[0012] By adopting the above technical solution, the second lifting mechanism can drive the bracket to move between the arms, so that after the tire is removed, the bracket is located below the tire, and at this time, the arm is pulled away from the tire, and the compression spring setting can make the arm have a swing stroke. After the arm is released from the tire, the tire can fall on the bracket and the tire can be loaded and unloaded.

[0013] Preferably, the bracket includes an annular support ring and a blocking rod arranged on one side of the annular support ring, and the blocking rod is perpendicular to the support ring and fixedly connected to the support ring.

[0014] By adopting the above technical solution, the stopper rod can realize lateral positioning of the tire to ensure the stability of the tire. Meanwhile, the support ring can be sleeved on the wheel hub to facilitate the installation of the tire and the wheel hub.

[0015] Preferably, the support ring has two arms, which are hinged to each other and arranged in a C shape, and two baffle bars are provided and are respectively located at two ends of the support ring.

[0016] By adopting the above technical solution, the C-shaped support ring can support the tire, and the two arms are hinged to each other to adjust the size of the support ring so as to adapt to tires and wheels of different sizes.

[0017] Preferably, the bracket also includes a tensioning plate, and the tensioning plate and the baffle rod are respectively located on opposite sides of the support ring; the tensioning plate is hinged to the support ring and elastically connected through a spring; the tensioning plate can be rotated to a perpendicular state with the support ring, or flipped to the side away from the baffle rod.

[0018] By adopting the above technical solution, the tire can be transferred through the automatic loading and unloading device, and the tensioning plate can limit the tire and hold the tire tightly, so as to improve the stability of the tire during the transfer process.

[0019] Preferably, the second lifting mechanism includes a fixed bracket and a lifting bracket, the lifting bracket is vertically slidably arranged on the fixed bracket, and the second lifting mechanism also includes a driver arranged on the fixed bracket, the driver is used to drive the lifting bracket to move vertically; the support ring is arranged on the lifting bracket.

[0020] By adopting the above technical solution, the lifting bracket can drive the supporting ring to be lifted and lowered, which is convenient for carrying the tire, helps to save physical strength, reduce labor intensity and improve work efficiency.

[0021] Preferably, the second lifting mechanism further comprises a flip bracket, the flip bracket is arranged on the lifting bracket and is rotatably connected to the lifting bracket, the flip bracket can be rotated from the horizontal side of the lifting bracket to the upper side, a gas spring is further arranged between the flip bracket and the lifting bracket, the body of the gas spring is rotatably connected to the lifting bracket, and the driving end is rotatably connected to the flip bracket; The supporting ring is arranged on the turning bracket.

[0022] By adopting the above technical solution, the tire can be rolled and placed upright on the support ring, which is convenient for rolling and transporting the tire; and the flip bracket can drive the support ring and the tire to flip, so that the tire is flipped from a vertical state to a horizontal state, so as to facilitate the tire to be transported directly above the workbench for tire installation. When the second lifting mechanism operates in the reverse direction, the tire can be removed from the workbench, which is convenient for tire removal.

[0023] Preferably, a guide rail is further provided on the flip bracket, and a guide sleeve slidably connected to the guide rail is provided on the support ring, and the support ring can slide to the inner side of the arm through the guide rail.

[0024] By adopting the above technical solution, the setting of the guide rail can make the support ring slide horizontally to above the workbench to facilitate the removal and placement of the tire.

[0025] In summary, the present invention includes at least one of the following beneficial technical effects: 1. During the tire changing process, the arm is in contact with the tire wheel surface to maintain the stability of the tire and avoid the tire from shaking too much under the action of elastic force, thereby preventing the tire from bouncing or falling and improving the safety of the operation; 2. The first lifting mechanism drives the bracket to move up and down, so that the arm can continue to clamp the tire when the tire is separated from the wheel hub, ensuring the stability and safety of the tire during the entire removal and installation process, and avoiding operational risks caused by tire movement; 3. The automatic loading and unloading device lifts the bracket to the bottom of the tire through the second lifting mechanism. After the tire is removed, the bracket can receive the tire, thereby realizing the automatic loading and unloading of the tire, reducing the physical exertion of manual operation and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the tire disassembly and assembly machine in the embodiment of the present application; Figure 2 Mainly used to demonstrate the structure of the clamping device in the embodiment of the present application; Figure 3 It is mainly used to demonstrate the structure of the automatic loading and unloading device in the embodiment of the present application.

[0027] Markings in the attached drawings: 1. rotating workbench; 2. clamping device; 21. bracket; 22. arm; 221. abutment portion; 23. first lifting mechanism; 24. driving mechanism; 241. sleeve; 242. pull rod; 243. compression spring; 245. tension spring; 3. automatic loading and unloading device; 31. bracket; 311. support ring; 312. stop rod; 313. tensioning plate; 314. guide sleeve; 32. second lifting mechanism; 321. fixed bracket; 322. lifting bracket; 323. flip bracket; 324. gas spring; 325. guide rail. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 The present invention is described in further detail.

[0029] The inventor of the present application discovered that when a tire disassembly and assembly machine is used to disassemble and assemble a tire and a wheel hub, maintenance personnel need to lift the tire and the wheel hub onto a workbench due to their heavy weight, and they still need to remove the tire from the workbench after disassembly. This process is inconvenient, causes great physical loss, and is not conducive to improving work efficiency. To this end, the present application mainly adopts the following technical solutions: a tire disassembly and assembly machine, comprising a rotating worktable 1 and a clamping device 2; the rotating worktable 1 comprises a rotating seat and a workbench arranged on the rotating seat; the clamping device 2 comprises a bracket 21, an arm 22, a first lifting mechanism 23 and a driving mechanism 24; the bracket 21 is arranged on the rotating seat and is vertically slidably connected with the rotating seat; the arm 22 is hinged to the bracket 21, and the arm 22 is provided with an abutting portion 221 for abutting against the wheel surface of the tire; the arm 22 is provided with at least two and distributed on the peripheral side of the workbench; the first lifting mechanism 23 is arranged on the rotating seat and is used to drive the bracket 21 to move up and down; the driving mechanism 24 is used to drive the arm 22 to swing, so that the abutting portion 221 abuts against the wheel surface of the tire. The effect of ensuring the stability of the tire during the disassembly and assembly process and avoiding bouncing or falling is achieved.

[0030] The tire disassembly and assembly machine provided in the embodiment of the present application refers to Figure 1 and Figure 2 , including a rotating worktable 1 and a clamping device 2. The rotating worktable 1 includes a rotating seat and a workbench arranged on the rotating seat. The clamping device 2 includes a bracket 21, an arm 22, a first lifting mechanism 23 and a driving mechanism 24. The bracket 21 is arranged on the rotating seat and is vertically slidably connected to the rotating seat. The arm 22 is hinged to the bracket 21, and the arm 22 is provided with an abutment portion 221 for abutting against the wheel surface of the tire. At least two arms 22 are provided and distributed on the circumference of the workbench. The first lifting mechanism 23 is arranged on the rotating seat and is used to drive the bracket 21 to move up and down. The driving mechanism 24 is used to drive the arm 22 to swing, so that the abutment portion 221 abuts against the wheel surface of the tire. This design can ensure the stability of the tire during the disassembly and assembly process, avoid bouncing or falling, and thus improve safety.

[0031] Specifically, the sliding connection between the bracket 21 and the rotating seat can be realized by a guide rail 325 and a slider. The guide rail 325 can be arranged along the vertical direction of the rotating seat, and the slider is fixed on the bracket 21, so that the bracket 21 can slide up and down smoothly on the rotating seat. The hinge point between the arm 22 and the bracket 21 can be connected by a pin, one end of the pin is fixed on the bracket 21, and the other end passes through the hole on the arm 22 and is fixed with a nut to ensure that the arm 22 can swing freely. The abutment portion 221 can be a soft rubber pad, which fits the end of the arm 22 to increase the friction with the tire surface and prevent slipping.

[0032] The driving mechanism 24 includes a sleeve 241, a pull rod 242 and a compression spring 243. The sleeve 241 is vertically arranged and connected to the rotating seat, the pull rod 242 is inserted into the sleeve 241, one end of the pull rod 242 is rotatably connected to the arm 22, and the other end is provided with an end plate, and a limit plate is provided at the upper end of the sleeve 241. The compression spring 243 is arranged inside the sleeve 241 and sleeved on the pull rod 242, and the two ends of the compression spring 243 are respectively in contact with the end plate and the limit plate. When the first lifting mechanism 23 drives the arm 22 to rise, the pull rod 242 is pulled out, and the arm 22 flips and abuts against the tire. As the arm 22 continues to rise, the pull rod 242 squeezes the compression spring 243, and the reaction force of the compression spring 243 acts on the arm 22, so that the arm 22 clamps the tire.

[0033] The sleeve 241 can be made of high-strength stainless steel material to ensure its wear resistance and corrosion resistance. The pull rod 242 can be made of high-strength steel wire rope to ensure its strength and toughness. The end plate can be a circular steel plate welded to the end of the pull rod 242 to increase the contact area and reduce the pressure. The limit plate can be a fixed metal plate welded to the upper end of the sleeve 241 to prevent the pull rod 242 from being completely pulled out. The compression spring 243 can be a high-elasticity coil spring to ensure that it has sufficient restoring force so that the arm 22 always maintains a certain clamping force on the tire.

[0034] The arm 22 is in contact with the wheel surface of the tire to maintain the stability of the tire. When removing the tire, the tire is removed by the bird head part of the tire disassembler, so that the upper edge of the tire is separated from the upper edge of the wheel hub. Then the tire is driven up by the first lifting mechanism 23, so that the lower edge of the tire is in contact with the upper edge of the wheel hub, and the tire is removed again by the bird head. During the entire tire removal process, the tire maintains a stable posture under the clamping action of the arm 22, avoiding the safety hazards caused by the bouncing or falling of the tire, and significantly improving the safety and efficiency of the disassembly process.

[0035] The driving mechanism 24 also includes a tension spring 245, which is vertically arranged, one end of which is fixedly connected to the sleeve 241, and the other end is fixedly connected to the rotating seat, and the sleeve 241 is vertically movable. Through the cooperation of the tension spring 245 and the compression spring 243, the stroke of the pull rod 242 can be effectively increased, and the arm 22 can be guaranteed to have sufficient tension.

[0036] The tension spring 245 can be made of high-strength steel wire to ensure sufficient tension and elasticity. One end of the tension spring 245 can be welded to the bottom of the sleeve 241, and the other end can be welded to the fixed part of the rotating seat. In this way, when the arm 22 rises, the tension spring 245 will be stretched, thereby generating additional tension and enhancing the tension of the arm 22. At the same time, the restoring force of the tension spring 245 can help the arm 22 to quickly reset when it descends, thereby improving work efficiency.

[0037] By adding the tension spring 245, the tensioning force of the arm 22 is further enhanced, so that the arm 22 can maintain a stable clamping force on the tire at different heights. This not only improves the safety of the disassembly and assembly process, but also reduces the wear of the arm 22 and prolongs the service life.

[0038] The tire disassembly and assembly machine provided in the embodiment of the present application further includes an automatic loading and unloading device 3. Figure 1 and Figure 3 The automatic loading and unloading device 3 includes a bracket 31 and a second lifting mechanism 32. The second lifting mechanism 32 is used to lift the bracket 31 from the ground to between the multiple arms 22 and below the tire. The second lifting mechanism 32 can drive the bracket 31 to move between the arms 22. Therefore, after the tire is removed, the bracket 31 is located below the tire. At this time, the arms 22 are pulled away from the tire, and the compression spring 243 is set to enable the arms 22 to have a swing stroke. After the arms 22 relax the tire, the tire can fall on the bracket 31 and the tire can be loaded and unloaded.

[0039] The bracket 31 includes an annular support ring 311 and a stopper 312 arranged on one side of the annular support ring 311, wherein the stopper 312 is perpendicular to the support ring 311 and fixedly connected to the support ring 311. The stopper 312 can limit the tire laterally to ensure the stability of the tire. At the same time, the support ring 311 can be sleeved on the wheel hub to facilitate the installation of the tire and the wheel hub. The support ring 311 can be made of high-strength plastic or aluminum alloy material to reduce weight while ensuring sufficient strength and rigidity. The stopper 312 can be made of metal pipe, such as steel pipe, welded to the side of the support ring 311 to ensure its stability.

[0040] The second lifting mechanism 32 includes a fixed bracket 321 and a lifting bracket 322. The lifting bracket 322 is vertically slidably arranged on the fixed bracket 321. The second lifting mechanism 32 also includes a driver arranged on the fixed bracket 321, and the driver is used to drive the lifting bracket 322 to move vertically. The support ring 311 is arranged on the lifting bracket 322. The fixed bracket 321 can be made of steel structure to ensure its stability and bearing capacity. The lifting bracket 322 can be made of aluminum alloy profile to reduce weight. The driver can be an electric cylinder or a hydraulic cylinder, and its movement is controlled by a controller to achieve precise control of the lifting bracket 322.

[0041] The automatic handling and loading and unloading of the tire is realized by the automatic loading and unloading device 3, which greatly reduces the physical burden of the maintenance personnel and improves the work efficiency. At the same time, the design of the bracket 31 can effectively limit and support the tire, ensure the stability of the tire during transportation, and avoid the safety hazards caused by the shaking of the tire.

[0042] The second lifting mechanism 32 also includes a flip bracket 323, which is arranged on the lifting bracket 322 and is rotatably connected to the lifting bracket 322. The flip bracket 323 can be rotated from the horizontal side of the lifting bracket 322 to the upper side. A gas spring 324 is also arranged between the flip bracket 323 and the lifting bracket 322. The body of the gas spring 324 is rotatably connected to the lifting bracket 322, and the driving end is rotatably connected to the flip bracket 323. The support ring 311 is arranged on the flip bracket 323. The tire can be rolled and placed upright on the support ring 311, which is convenient for rolling and transporting the tire. The flip bracket 323 can drive the support ring 311 and the tire to flip, so that the tire is flipped from a vertical state to a horizontal state, so as to facilitate the transportation of the tire to the top of the workbench, so as to carry out the tire installation work. When the second lifting mechanism 32 is reversely operated, the tire can be removed from the workbench, which is convenient for the removal of the tire.

[0043] The rotation connection between the flip bracket 323 and the lifting bracket 322 can be realized by a pin shaft, one end of which is fixed on the lifting bracket 322, and the other end passes through a hole on the flip bracket 323 and is fixed by a nut to ensure that the flip bracket 323 can rotate freely. The gas spring 324 can be a high-pressure gas spring, one end of which is fixed on the lifting bracket 322, and the other end is fixed on the flip bracket 323 to ensure that the flip bracket 323 can rotate smoothly.

[0044] A guide rail 325 is also provided on the flip bracket 323, and a guide sleeve 314 slidably connected to the guide rail 325 is provided on the support ring 311, and the support ring 311 can slide to the inner side of the arm 22 through the guide rail 325. The provision of the guide rail 325 enables the support ring 311 to slide horizontally above the workbench to facilitate the placement of the tire.

[0045] The support ring 311 is C-shaped, and two blocking rods 312 are provided and respectively located at both ends of the support ring 311. The C-shaped support ring 311 can support the tire, and the two arms are hinged to each other to adjust the size of the support ring 311 so as to adapt to tires and wheels of different sizes.

[0046] The bracket 31 further includes a tensioning plate 313, and the tensioning plate 313 and the blocking rod 312 are respectively located on opposite sides of the support ring 311. The tensioning plate 313 is hinged to the support ring 311 and elastically connected by a spring. The tensioning plate 313 can be rotated to a vertical state with the support ring 311, or flipped to a side away from the blocking rod 312. The design of the tensioning plate 313 can limit the position of the tire and can also hold the tire tightly, so as to improve the stability of the tire during transportation.

[0047] The hinge point between the tensioning plate 313 and the support ring 311 can be connected by a pin, one end of which is fixed on the support ring 311, and the other end passes through the hole on the tensioning plate 313 and is fixed by a nut to ensure that the tensioning plate 313 can rotate freely. The spring can be a highly elastic spiral spring, one end of which is fixed on the support ring 311 and the other end is fixed on the tensioning plate 313 to ensure that the tensioning plate 313 has sufficient tensioning force.

[0048] Through the design of the C-shaped support ring 311 and the tensioning plate 313, the bracket 31 can adapt to tires and wheels of different sizes, while effectively limiting and supporting the tires, ensuring the stability of the tires during transportation and avoiding safety hazards caused by tire shaking.

[0049] The design of the flip bracket 323 enables flexible handling and positioning of the tire, especially during the tire installation and removal process, the tire can be quickly and accurately positioned on the workbench, further improving work efficiency and safety.

[0050] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tire disassembly and assembly machine, characterized in that: It comprises a rotating worktable (1) and a clamping device (2); The rotary workbench (1) comprises a rotary seat and a workbench arranged on the rotary seat; The clamping device (2) comprises a bracket (21), an arm (22), a first lifting mechanism (23) and a driving mechanism (24); the bracket (21) is arranged on a rotating seat and is vertically slidably connected to the rotating seat; the arm (22) is hinged to the bracket (21), and an abutment portion (221) for abutting against a wheel surface of a tire is arranged on the arm (22); at least two arms (22) are arranged and are distributed around the workbench; The first lifting mechanism (23) is arranged on the rotating seat and is used to drive the bracket (21) to move up and down; the driving mechanism (24) is used to drive the arm (22) to swing, so that the abutment portion (221) abuts against the wheel surface of the tire.

2. The tire disassembly and assembly machine according to claim 1, characterized in that: The driving mechanism (24) comprises a sleeve (241), a pull rod (242) and a compression spring (243); the sleeve (241) is arranged vertically and connected to the rotating seat, the pull rod (242) is inserted into the sleeve (241), one end of the pull rod (242) is rotatably connected to the arm (22), and the other end is provided with an end plate, and a limit plate is provided at the upper end of the sleeve (241); the compression spring (243) is arranged inside the sleeve (241) and sleeved on the pull rod (242), and the two ends of the compression spring (243) are respectively in contact with the end plate and the limit plate.

3. The tire disassembly and assembly machine according to claim 2, characterized in that: The driving mechanism (24) further comprises a tension spring (245), wherein the tension spring (245) is arranged vertically, one end of the tension spring is fixedly connected to the sleeve (241), and the other end of the tension spring is fixedly connected to the rotating seat, and the sleeve (241) is movably arranged vertically.

4. The tire disassembly and assembly machine according to claim 2, characterized in that: It also comprises an automatic loading and unloading device (3), the automatic loading and unloading device (3) comprising a bracket (31) and a second lifting mechanism (32), the second lifting mechanism (32) being used to lift the bracket (31) from the ground to between the plurality of arms (22) and below the tires.

5. The tire disassembly and assembly machine according to claim 4, characterized in that: The bracket (31) comprises an annular support ring (311) and a blocking rod (312) arranged on one side of the annular support ring (311); the blocking rod (312) is perpendicular to the support ring (311) and is fixedly connected to the support ring (311).

6. The tire disassembly and assembly machine according to claim 4, characterized in that: The support ring (311) is arranged in a C shape, and two blocking rods (312) are arranged and are respectively located at two ends of the support ring (311).

7. The tire disassembly and assembly machine according to claim 6, characterized in that: The bracket (31) further comprises a tensioning plate (313), wherein the tensioning plate (313) and the blocking rod (312) are respectively located on two opposite sides of the support ring (311); the tensioning plate (313) is hinged to the support ring (311) and elastically connected via a spring; the tensioning plate (313) can be rotated to a state perpendicular to the support ring (311), or flipped to a side away from the blocking rod (312).

8. The tire disassembly and assembly machine according to claim 5, characterized in that: The second lifting mechanism (32) comprises a fixed support (321) and a lifting support (322), the lifting support (322) being vertically slidably arranged on the fixed support (321), the second lifting mechanism (32) further comprising a driver () arranged on the fixed support (321), the driver () being used to drive the lifting support (322) to move vertically; the support ring (311) is arranged on the lifting support (322).

9. The tire disassembly and assembly machine according to claim 8, characterized in that: The second lifting mechanism (32) further comprises a flip bracket (323), wherein the flip bracket (323) is disposed on the lifting bracket (322) and is rotatably connected to the lifting bracket (322); the flip bracket (323) can be rotated from a horizontal side of the lifting bracket (322) to an upper side; a gas spring (324) is further disposed between the flip bracket (323) and the lifting bracket (322); a body of the gas spring (324) is rotatably connected to the lifting bracket (322), and a driving end is rotatably connected to the flip bracket (323); The support ring (311) is arranged on the flip bracket (323).

10. The tire disassembly and assembly machine according to claim 9, characterized in that: The flip bracket (323) is also provided with a guide rail (325), and the support ring (311) is provided with a guide sleeve (314) slidably connected to the guide rail (325), and the support ring (311) can slide to the inner side of the arm (22) through the guide rail (325).

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