Compact automatic tire changer

Abstract

The utility model discloses a compact type automatic tire changer which comprises a changer body arranged on a bearing object and suitable for dismounting or mounting a tire, and an automatic tire changer body arranged on the bearing object and suitable for dismounting or mounting the tire. The clamping mechanism is arranged on the disassembling and assembling machine and can move on the disassembling and assembling machine so as to be suitable for clamping or loosening a tire; the conveying mechanism is arranged on the side face of the disassembling and assembling machine, and the conveying mechanism can move on the side face of the disassembling and assembling machine so as to be suitable for conveying tires to move in the direction close to or away from the disassembling and assembling machine; the two limiting mechanisms are arranged on the two sides in the conveying mechanism correspondingly, and the two limiting mechanisms can move in the length direction of the conveying mechanism correspondingly so as to be suitable for jointly lifting tires on the conveying mechanism; and the two driving mechanisms are arranged on the two sides in the conveying mechanism correspondingly and are in transmission connection with the two limiting mechanisms correspondingly.

Description

Technical Field

[0001] The utility model relates to the technical field of tire installation, in particular to a compact automatic tire disassembly and. Background Art

[0002] Tire changer, also called tire changer or tire remover, is used to install and unload automobile tires. It can replace tires for different vehicles such as cars, motorcycles and heavy trucks. It is an essential equipment for automobile repair shops and 4S shops.

[0003] The existing tire disassembly and assembly machine needs to manually lock the fixing block or the limit block when fixing the tire, so that the tire is fixed in the disassembly and assembly machine to prevent the tire from shifting during the disassembly or installation process. However, the manual locking and fixing method is inefficient and cannot ensure the center point of the tire when installing or removing it, resulting in the tire shifting during the installation or removal process. In addition, the tire is heavy, and the existing installation or removal of the tire is always carried manually. The manual handling method increases the working time of the operator and is also inefficient. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one object of the utility model is to provide a compact automatic tire disassembly and assembly machine, comprising:

[0005] A disassembly and assembly machine, the disassembly and assembly machine is arranged on a carrier and is suitable for disassembling or installing tires;

[0006] A clamping mechanism, which is disposed on the disassembling machine and is movable on the disassembling machine to be suitable for clamping or loosening the tire;

[0007] A conveying mechanism, the conveying mechanism is arranged on the side of the disassembling machine, and the conveying mechanism is movable on the side of the disassembling machine to be suitable for conveying the tire to move toward or away from the disassembling machine;

[0008] Two limiting mechanisms, the two limiting mechanisms are respectively arranged on two sides of the conveying mechanism, and the two limiting mechanisms are respectively movable along the length direction of the conveying mechanism to be suitable for jointly supporting the tire on the conveying mechanism;

[0009] Two driving mechanisms are respectively arranged at two sides of the conveying mechanism and are respectively connected to the two limiting mechanisms in a transmission manner so as to be suitable for driving the two limiting mechanisms to move along the length direction of the conveying mechanism.

[0010] Preferably, the clamping mechanism comprises:

[0011] a first motor, the first motor being arranged in the disassembly and assembly machine;

[0012] A plurality of fixing columns, wherein the plurality of fixing columns are arranged on the disassembling and assembling machine;

[0013] A storage tray, the storage tray is arranged on the plurality of fixing columns;

[0014] A plurality of strip grooves are arranged on the storage tray at equal intervals and are arranged to penetrate along the rear end direction of the storage tray.

[0015] Preferably, the clamping mechanism further comprises:

[0016] A positioning column, the positioning column is arranged at the bottom of the storage tray;

[0017] A turntable, the top of which is disposed on the top of the positioning column and is rotatably connected to the positioning column, and the bottom of which is drivingly connected to the transmission shaft of the first motor;

[0018] A plurality of connecting rods, one end of each of the connecting rods being rotatably connected to the corners of the rotating disk;

[0019] A plurality of sliding columns, wherein the plurality of sliding columns are respectively connected to the other ends of the plurality of connecting rods, and the tops of the plurality of sliding columns respectively extend into the plurality of strip grooves and are slidably connected to the strip grooves;

[0020] A plurality of clamping blocks are arranged on the top of the storage tray and are respectively connected to the plurality of sliding columns.

[0021] Preferably, the transport mechanism comprises:

[0022] Two brackets, the two brackets are arranged at intervals on the sides of the disassembly and assembly machine;

[0023] A plurality of first rotating shafts, wherein the plurality of first rotating shafts are disposed between the two brackets, and two ends of the plurality of first rotating shafts are rotatably connected to the two brackets respectively;

[0024] A plurality of sleeves, wherein the plurality of sleeve sleeves are respectively sleeved on the outer circumferential surfaces of the plurality of first rotating shafts;

[0025] A first belt, wherein the first belt is sleeved on ends of the plurality of first rotating shafts;

[0026] The second motor is arranged on the outer side of the bracket, and the transmission shaft of the second motor extends to the inner side of the bracket and is transmission-connected with the first rotating shaft.

[0027] Preferably, the limiting mechanism comprises:

[0028] A slide rail, the slide rail is arranged on the inner side of the bracket and is arranged along the length direction of the bracket;

[0029] A slide groove, which is arranged at the top of the slide groove and communicates with the inside of the slide rail, and the slide groove is arranged along the length direction of the slide rail;

[0030] a first sliding block, the first sliding block being slidably disposed in the sliding rail;

[0031] A fixed block, the fixed block is connected to the first sliding block, and the fixed block is arranged in an "L" shape;

[0032] The guide groove is arranged in the fixed block, the guide groove runs through the end and side of the fixed block, and the guide groove is arranged in an arc shape.

[0033] Preferably, the limiting mechanism further includes:

[0034] A limit block, wherein the limit block is slidably disposed in the guide groove and is arranged in an arc shape;

[0035] A plurality of pulleys, wherein the plurality of pulleys are arranged on the inner side of the limit block, and one end of the plurality of sliders is connected to the limit block, and the other end is slidably connected to the guide groove;

[0036] a second slider, the second slider being slidably disposed in the slide rail;

[0037] A fixing groove, which is disposed in the second slider and passes through a side surface of the second slider;

[0038] A gas rod, one end of which is arranged in the fixing groove, and the other end of which is connected to the limiting block.

[0039] Preferably, the driving mechanism comprises:

[0040] A plurality of second rotating shafts, wherein the plurality of the first rotating shafts are arranged at equal intervals on the inner side surface of the bracket and are rotatably connected to the bracket;

[0041] A plurality of rotating wheels, wherein the plurality of rotating wheels are respectively arranged at ends of the plurality of second rotating shafts;

[0042] a second belt, the second belt being sleeved on the plurality of rotating wheels;

[0043] a first connecting block, wherein one end of the first connecting block is connected to the second belt, and the other end of the first connecting block is connected to the fixing block;

[0044] a second connecting block, one end of which is connected to the second belt, and the other end of which is connected to the second slider;

[0045] A third motor is disposed on the outer side surface between the brackets, and a transmission shaft of the third motor extends into the bracket and is transmission-connected to the second rotating shaft.

[0046] The above solution of the utility model includes at least the following beneficial effects:

[0047] The tire to be disassembled or installed is placed on the conveying mechanism, and the conveying mechanism conveys the tire toward the disassembling machine. During the transportation of the tire, the two limiting mechanisms abut against the outer circumference of the tire, and the two limiting mechanisms also move toward the disassembling machine at the same time. After the tire is transported to the disassembling machine, the operator moves the tire to the clamping mechanism, and moves the clamping mechanism toward the tire to clamp and fix the tire; after the tire is installed or disassembled, the operator moves to the conveying mechanism, and then the two limiting mechanisms abut against the outer circumference of the tire again, and then the conveying mechanism sends the tire out; transporting the tire by the conveying mechanism reduces the operator's carrying time and distance, so as to reduce the operator's carrying burden; the two limiting mechanisms ensure that the tire will not deviate or slip during transportation; the clamping mechanism can quickly clamp the tire and find the center point of the tire, so that the tire will not deviate during installation or disassembly.

[0048] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0050] Figure 1 It is a structural schematic diagram of a compact automatic tire disassembly and assembly machine provided in an embodiment of the utility model;

[0051] Figure 2 It is a structural schematic diagram of a clamping mechanism provided in an embodiment of the utility model;

[0052] Figure 3 yes Figure 2 AA cross-sectional structural diagram;

[0053] Figure 4 It is a structural schematic diagram of a limiting mechanism provided in an embodiment of the utility model;

[0054] Figure 5It is a schematic structural diagram of a first rotating shaft provided in an embodiment of the utility model;

[0055] Figure 6 It is a schematic diagram of the structure of the bracket provided in the embodiment of the utility model;

[0056] Figure 7 yes Figure 6 A magnified view of part B;

[0057] Figure 8 It is a structural schematic diagram of a first sliding block provided in an embodiment of the utility model;

[0058] Fig. 9 yes Figure 8 Schematic diagram of the CC structure.

[0059] Description of Figure Numbers:

[0060] 1. Disassembler, 2. Clamping mechanism, 3. Transport mechanism, 4. Limiting mechanism, 5. Driving mechanism;

[0061] 201, first motor, 202, fixed column, 203, storage plate, 204, strip groove, 205, positioning column, 206, rotating plate, 207, connecting rod, 208, sliding column, 209, clamping block;

[0062] 301, bracket, 302, first rotating shaft, 303, sleeve, 304, first belt, 305, second motor;

[0063] 401, slide rail, 403, first slide block, 404, fixed block, 405, guide groove, 406, limit block, 407, pulley, 408, second slide block, 410, gas rod;

[0064] 501, a second rotating shaft, 502, a rotating wheel, 503, a second belt, 504, a first connecting block, 505, a second connecting block, 506, a third motor.

[0065] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0066] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0067] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0069] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0071] The compact automatic tire disassembly and assembly machine of the utility model embodiment is described in detail below with reference to the accompanying drawings.

[0072] See also Figures 1 to 9In this embodiment, the tire comprises: a disassembly and assembly machine 1, which is arranged on a carrier and is suitable for disassembling or installing a tire; a clamping mechanism 2, which is arranged on the disassembly and assembly machine 1 and is movable on the disassembly and assembly machine 1 to clamp or loosen the tire; a conveying mechanism 3, which is arranged on the side of the disassembly and assembly machine 1 and is movable on the side of the disassembly and assembly machine 1 to convey the tire to move toward or away from the disassembly and assembly machine 1; two limiting mechanisms 4, which are respectively arranged on both sides of the conveying mechanism 3, and are respectively movable along the length direction of the conveying mechanism 3 to jointly lift the tire on the conveying mechanism 3; two driving mechanisms 5, which are respectively arranged on both sides of the conveying mechanism 3 and are respectively connected to the two limiting mechanisms 4 in a transmission manner to drive the two limiting mechanisms 4 to move along the length direction of the conveying mechanism 3; placing the tire to be disassembled or installed on the conveying mechanism On the mechanism 3, the conveying mechanism 3 conveys the tire toward the disassembling machine 1. During the transportation of the tire, the two limiting mechanisms 4 abut against the outer circumference of the tire, and the two limiting mechanisms 4 also move toward the disassembling machine 1 at the same time. When the tire is transported to the disassembling machine, the operator moves the tire to the clamping mechanism 2, and moves the clamping mechanism 2 toward the tire to clamp and fix the tire; after the tire is installed or disassembled, the operator moves to the conveying mechanism 3, and then the two limiting mechanisms 4 abut against the outer circumference of the tire again, and then the conveying mechanism 3 sends the tire out; transporting the tire through the conveying mechanism 3 reduces the operator's transportation time and transportation distance, so as to reduce the operator's transportation burden; the two limiting mechanisms 4 ensure that the tire will not deviate or slip during transportation; the clamping mechanism 2 can quickly clamp the tire and find the center point of the tire, so that the tire will not deviate during installation or disassembly.

[0073] In the present embodiment, the clamping mechanism 2 comprises: a first motor 201, which is arranged in the disassembling and assembling machine 1; a plurality of fixed columns 202, which are arranged on the disassembling and assembling machine 1; a storage tray 203, which is arranged on the plurality of fixed columns 202; a plurality of strip grooves 204, which are arranged on the storage tray 203 at equal intervals and are arranged through the rear end direction of the storage tray 203; the clamping mechanism 2 also comprises: a positioning column 205, which is arranged at the bottom of the storage tray 203; a rotating disk 206, the top of which is arranged on the top of the positioning column 205 and is rotatably connected to the positioning column 205, and the bottom of the rotating disk 206 is transmission-connected to the transmission shaft of the first motor 201; a plurality of connecting rods 207, one end of which is rotationally connected to the corners of the rotating disk 206; a plurality of sliding columns 208, which are rotationally connected to the corners of the rotating disk 206; 08 are respectively connected to the other ends of the plurality of connecting rods 207, and the tops of the plurality of sliding columns 208 extend into the plurality of strip grooves 204, and are slidably connected to the strip grooves 204; a plurality of clamping blocks 209 are arranged on the top of the storage tray 203, and are respectively connected to the plurality of sliding columns 208; after the conveying mechanism 3 conveys the tire to the disassembling machine 1, the operator moves the tire to the storage tray 203, and then the first motor 201 drives the turntable 206 to rotate, and when the turntable 206 rotates, it drives the plurality of connecting rods 207 to move at the same time, and when the plurality of connecting rods 207 move, they respectively drive the plurality of sliding columns 208 to slide in the plurality of strip grooves 204, so that the plurality of clamping blocks 209 on the tops of the plurality of sliding columns 208 also move with it, so that the plurality of clamping blocks 209 can clamp or loosen the tire to ensure that the tire will not be offset during the installation or removal process.

[0074] In this embodiment, the conveying mechanism 3 includes: two brackets 301, which are arranged at intervals on the side of the disassembling and assembling machine 1; a plurality of first rotating shafts 302, which are arranged between the two brackets 301, and the two ends of the plurality of first rotating shafts 302 are respectively connected to the two brackets for rotation; a plurality of sleeves 303, which are respectively sleeved on the outer circumferences of the plurality of first rotating shafts 302; a first belt 304, which is sleeved on the ends of the plurality of first rotating shafts 302; a second motor 305, which is arranged on the outer side of the bracket 301, and the transmission shaft of the second motor 305 extends to the inner side of the bracket 301 and is connected to the first rotating shaft 302 for transmission; the tire to be disassembled or installed is placed on the plurality of sleeves 303, and then the motor drives the first rotating shaft 302 to rotate, and drives all the first rotating shafts 302 to rotate through the first belt 304, so that the plurality of sleeves 303 also rotate, so as to send out or transport the installed or disassembled tire to the disassembling and assembling machine 1.

[0075] In this embodiment, the limiting mechanism 4 includes: a slide rail 401, which is arranged on the inner side of the bracket 301 and is arranged along the length direction of the bracket 301; a slide groove (not shown in the figure), which is arranged at the top of the slide groove and is connected to the inside of the slide rail 401, and the slide groove is arranged along the length direction of the slide rail 401; a first slider 403, which is slidably arranged in the slide rail 401; a fixed block 404, which is connected to the first slider 403, and the fixed block 404 is arranged in an "L" shape; a guide groove 405, which is arranged in the fixed block 404, the guide groove 405 runs through the end and side of the fixed block 404, and the guide groove 405 is arranged in an arc shape; the limiting mechanism 4 also includes: a limit block 406, which is slidably arranged in the guide groove 405, and the limit block 406 is arranged in an arc shape; a plurality of pulleys 407, a plurality of pulleys 407 are arranged On the inner side of the limit block 406, one end of the multiple sliders is connected to the limit block 406, and the other end is slidably connected to the guide groove 405; the second slider 408, the second slider 408 is slidably arranged in the slide rail 401; the fixed groove (not shown in the figure), the fixed groove is arranged in the second slider 408, and the fixed groove runs through the side of the second slider 408; the air rod 410, one end of the air rod 410 is arranged in the fixed groove, and the other end is connected to the limit block 406; the air rod 410 pushes or pulls the limit block 406 to move in the guide groove 405, and the limit block 406 can slide smoothly in the guide groove 405 through the multiple pulleys 407, so that the limit block 406 can extend out of the sleeve 303. When the tire is placed on the sleeve 303, the limit block 406 is pushed out by the air rod 410 and pressed against the outer peripheral surface of the tire, thereby ensuring that the tire will not deviate or slip during transportation.

[0076] In this embodiment, the driving mechanism 5 includes: a plurality of second rotating shafts 501, a plurality of first rotating shafts 302 are arranged at equal intervals on the inner side of the bracket 301 and are rotatably connected to the bracket 301; a plurality of rotating wheels 502, the plurality of rotating wheels 502 are respectively arranged at the ends of the plurality of second rotating shafts 501; a second belt 503, the second belt 503 is sleeved on the plurality of rotating wheels 502; a first connecting block 504, one end of the first connecting block 504 is connected to the second belt 503, and the other end is connected to the fixing block 404; a second connecting block 505, one end of the second connecting block 505 is connected to the second belt 503, and the other end is connected to the second slider 408 Connection; the third motor 506, the third motor 506 is arranged on the outer side surface therebetween, and the transmission shaft of the third motor 506 extends into the bracket 301 and is transmission-connected with the second rotating shaft 501; when the limiting mechanism 4 needs to move, the third motor 506 drives the second rotating shaft 501 to rotate, and when the second rotating shaft 501 rotates, it drives the rotating wheel 502 to rotate, and the rotating wheel 502 drives the second belt 503 to rotate as well. When the second belt 503 rotates, it drives the limiting mechanism 4 to move through the first connecting block 504 and the second connecting block 505, so that the limiting mechanism 4 can ensure that the tire will not deviate or slip during transportation.

[0077] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0078] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. Compact automatic tire changer, characterized by: include: A disassembly and assembly machine, the disassembly and assembly machine is arranged on a carrier and is suitable for disassembling or installing tires; A clamping mechanism, which is disposed on the disassembling machine and is movable on the disassembling machine to be suitable for clamping or loosening the tire; A conveying mechanism, the conveying mechanism is arranged on the side of the disassembling machine, and the conveying mechanism is movable on the side of the disassembling machine to be suitable for conveying the tire to move toward or away from the disassembling machine; Two limiting mechanisms, the two limiting mechanisms are respectively arranged on two sides of the conveying mechanism, and the two limiting mechanisms are respectively movable along the length direction of the conveying mechanism to be suitable for jointly supporting the tire on the conveying mechanism; Two driving mechanisms are respectively arranged at two sides of the conveying mechanism and are respectively connected to the two limiting mechanisms in a transmission manner so as to be suitable for driving the two limiting mechanisms to move along the length direction of the conveying mechanism.

2. The compact automatic tire changer according to claim 1, characterized in that: The clamping mechanism comprises: a first motor, the first motor being arranged in the disassembly and assembly machine; A plurality of fixing columns, wherein the plurality of fixing columns are arranged on the disassembling and assembling machine; A storage tray, the storage tray is arranged on the plurality of fixing columns; A plurality of strip grooves are arranged on the storage tray at equal intervals and are arranged to penetrate along the rear end direction of the storage tray.

3. The compact automatic tire changer according to claim 2, characterized in that: The clamping mechanism also includes: A positioning column, the positioning column is arranged at the bottom of the storage tray; A turntable, the top of which is disposed on the top of the positioning column and is rotatably connected to the positioning column, and the bottom of which is drivingly connected to the transmission shaft of the first motor; A plurality of connecting rods, one end of each of the connecting rods being rotatably connected to the corners of the rotating disk; A plurality of sliding columns, wherein the plurality of sliding columns are respectively connected to the other ends of the plurality of connecting rods, and the tops of the plurality of sliding columns respectively extend into the plurality of strip grooves and are slidably connected to the strip grooves; A plurality of clamping blocks are arranged on the top of the storage tray and are respectively connected to the plurality of sliding columns.

4. The compact automatic tire changer according to claim 1, characterized in that: The transport mechanism comprises: Two brackets, the two brackets are arranged at intervals on the sides of the disassembly and assembly machine; A plurality of first rotating shafts, wherein the plurality of first rotating shafts are disposed between the two brackets, and two ends of the plurality of first rotating shafts are rotatably connected to the two brackets respectively; A plurality of sleeves, wherein the plurality of sleeve sleeves are respectively sleeved on the outer circumferential surfaces of the plurality of first rotating shafts; A first belt, wherein the first belt is sleeved on ends of the plurality of first rotating shafts; The second motor is arranged on the outer side of the bracket, and the transmission shaft of the second motor extends to the inner side of the bracket and is transmission-connected with the first rotating shaft.

5. The compact automatic tire changer according to claim 4, characterized in that: The limiting mechanism comprises: A slide rail, the slide rail is arranged on the inner side of the bracket and is arranged along the length direction of the bracket; A slide groove, which is arranged at the top of the slide groove and communicates with the inside of the slide rail, and the slide groove is arranged along the length direction of the slide rail; a first sliding block, the first sliding block being slidably disposed in the sliding rail; A fixed block, the fixed block is connected to the first sliding block, and the fixed block is arranged in an "L" shape; A guide groove is arranged in the fixing block, the guide groove runs through the end and side of the fixing block, and the guide groove is arranged in an arc shape.

6. The compact automatic tire changer according to claim 5, characterized in that: The limiting mechanism also includes: A limit block, the limit block is slidably disposed in the guide groove, and the limit block is arranged in an arc shape; A plurality of pulleys, wherein the plurality of pulleys are arranged on the inner side of the limit block, and one end of the plurality of sliders is connected to the limit block, and the other end is slidably connected to the guide groove; a second slider, the second slider being slidably disposed in the slide rail; A fixing groove, which is disposed in the second slider and passes through a side surface of the second slider; A gas rod, one end of which is arranged in the fixing groove, and the other end of which is connected to the limiting block.

7. The compact automatic tire changer according to claim 6, characterized in that: The driving mechanism comprises: A plurality of second rotating shafts, wherein the plurality of the first rotating shafts are arranged at equal intervals on the inner side surface of the bracket and are rotatably connected to the bracket; A plurality of rotating wheels, wherein the plurality of rotating wheels are respectively arranged at ends of the plurality of second rotating shafts; a second belt, the second belt being sleeved on the plurality of rotating wheels; a first connecting block, wherein one end of the first connecting block is connected to the second belt, and the other end of the first connecting block is connected to the fixing block; a second connecting block, one end of the second connecting block being connected to the second belt, and the other end of the second connecting block being connected to the second slider; A third motor is disposed on the outer side surface between the brackets, and a transmission shaft of the third motor extends into the bracket and is transmission-connected to the second rotating shaft.

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