An auxiliary device for installing a tire assembly that is convenient to use

Abstract

The present invention relates to the technical field of tire assembly installation, and discloses an auxiliary device for tire assembly installation that is convenient to use, including a chassis. A fixing plate is fixedly installed on the top of the chassis. A sliding opening is formed in the fixing plate. A lifting mechanism is arranged in the sliding opening. The lifting mechanism includes a lifting plate and a driving mechanism. A notch is formed in the lifting plate. Two first rollers and an adjusting mechanism are arranged in the notch. The driving mechanism can drive the two first rollers to support the tire assembly and move along the sliding opening. By starting the driving motor, when the two first rollers support the tire assembly, the lower tooth plate and the upper tooth plate move towards each other to drive the two first rollers and the second rollers to approach each other to support and fix the tire assembly, thereby avoiding the tire from falling during transportation and improving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of tire assembly installation, and specifically provides an auxiliary device for tire assembly installation that is convenient to use. Background Art

[0002] A wheel assembly is a assembly composed of two major components, a wheel and a tire.

[0003] Chinese Patent CN204432704U proposes a machine for transporting and installing large vehicle tire assemblies, mainly composed of upper roller wheels, upper cross beams, tire assembly lifting frame guide rails, chain pulley horizontal shafts, chain pulleys, manual hydraulic cylinder assemblies, tire assembly lifting frames, tire assembly support roller sleeves, straight casters, device chassis, chain pulley lifting shaft guide frames, lifting chains, universal casters, chain pulley lifting shaft guide sleeves, etc. This machine for transporting and installing tire assemblies forks up the tire assembly from the ground and then short-distance transports it to the axle end to be installed. By pressing the oil cylinder handle, the tire assembly lifting frame can lift the tire assembly to an appropriate height, then move this machine and rotate the tire assembly to install the tire assembly on the axle end face, thus completing the installation of the tire assembly. This machine can be applied to the "tire installation" station of the "automobile general assembly line" and cooperate with the implementation of the "flow" assembly process; during the alignment process of the wheel and the axle, it does not rely on other lifting equipment, saving production equipment and having fast operation. However, during the transportation process, the tire assembly is not effectively fixed, there are certain safety hazards, and it is difficult to adjust the tire assembly support roller sleeve. When fine-tuning the tire, it is necessary to manually rotate the tire assembly for adjustment, which is not convenient for applying force. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the present invention provides an auxiliary device for tire assembly installation that is convenient to use, with the advantages of high safety, wide application range, and labor saving, and solves the problems that during the transportation process, the wheel assembly is not effectively fixed, there are certain safety hazards, and it is difficult to adjust the tire assembly support roller sleeve. When fine-tuning the tire, it is necessary to manually rotate the tire assembly for adjustment, which is not convenient for applying force.

[0006] (II) Technical Solutions

[0007] To solve the technical problems that in the above transportation process, the wheel assembly is not effectively fixed, there are certain safety hazards, and it is difficult to adjust the support roller sleeve of the tire assembly. When fine-tuning the tire, it is necessary to manually rotate the tire assembly for adjustment, which is not convenient for applying force, the present invention provides the following technical solutions: An auxiliary device for installing a tire assembly that is easy to use, including a chassis, a fixing plate is fixedly installed on the top of the chassis, a sliding opening is provided on the fixing plate, a lifting mechanism is arranged in the sliding opening, the lifting mechanism includes a lifting plate and a driving mechanism, a concave opening is provided on the lifting plate, two first rollers and an adjusting mechanism are arranged in the concave opening, the driving mechanism can drive the two first rollers to support the tire assembly and move along the sliding opening, a pushing mechanism is arranged on the lifting plate, the pushing mechanism can drive the adjusting mechanism to adjust the distance between the two first rollers, a lower toothed plate is arranged on the top of the lifting plate, a first slider and a resistance mechanism are arranged in the sliding opening, an upper toothed plate and a second roller are arranged on the first slider, and the upper toothed plate is arranged on one side of the lower toothed plate, a first gear is arranged on one side of the resistance mechanism, and the first gear is arranged between the lower toothed plate and the upper toothed plate and meshes with the lower toothed plate and the upper toothed plate; Driven by the first driving mechanism, the two first rollers drive the lower toothed plate to move. At the same time, the resistance mechanism hinders the upward movement of the first gear, so that the lower toothed plate and the upper toothed plate move towards each other, thereby driving the two first rollers and the second roller to approach each other.

[0008] Preferably, the driving mechanism includes a threaded rod and a driving motor. The threaded rod is rotatably connected to the bottom inner wall of the sliding opening, and the top end of the threaded rod extends above the fixing plate. The output shaft of the driving motor is fixedly connected to the output shaft of the threaded rod, and an installation plate is arranged on the outer wall of one side of the driving motor, and the installation plate is fixedly connected to the outer wall of one side of the fixing plate.

[0009] Preferably, the adjusting mechanism includes a bidirectional lead screw, two threaded blocks and two second gears. The bidirectional lead screw is rotatably connected to the inner walls of both sides of the concave opening. The two threaded blocks are both threadedly connected to the bidirectional lead screw. The two second gears are both sleeved on the bidirectional lead screw.

[0010] Preferably, the pushing mechanism includes two sliding rods, a baffle, and two toothed plates. Both of the two sliding rods are slidably engaged with the lifting plate. The baffle is fixedly connected to one end of the two sliding rods, and a return spring is movably sleeved on the sliding rod. One end of the return spring is fixedly connected to the lifting plate, and the other end of the return spring is fixedly connected to the baffle. The toothed plates are fixedly connected to the outer wall of one side of the baffle, and the toothed plates are respectively meshed with the second gear. When the device is pushed to lift the tire assembly, after the tire assembly contacts the baffle and the device continues to move forward, the baffle is squeezed by the tire assembly to drive the toothed plate to move. The toothed plate drives the bidirectional lead screw through the second gear to drive the threaded blocks to move simultaneously to adjust the distance between the two first rollers and the second roller.

[0011] Preferably, a plurality of tooth openings are formed in one of the sliding rods. An installation block is fixedly installed on one side of the lifting plate, and a square rod is slidably engaged with the installation block. A lifting ring is fixedly installed at the top of the square rod, and a tooth block is fixedly installed at the bottom of the square rod. The tooth block extends into the tooth opening and is adapted to it.

[0012] Preferably, the resistance mechanism includes a resistance spring and a second slider. The resistance spring is sleeved on the threaded rod. The second slider is slidably engaged with the inner walls of both sides of the sliding opening, and the second slider is arranged above the first slider. An avoidance hole is formed in the top of the first slider, and the resistance spring and the threaded rod both penetrate through the avoidance hole. During the process of lifting and clamping the tire assembly, the lower toothed plate drives the first gear to rotate. The first gear drives the second slider to compress the resistance spring, thereby preventing the second slider from rising. After the second roller contacts the tire assembly, the two first rollers and the second roller stop moving towards each other, and the first gear stops rotating.

[0013] Preferably, a rotating handle and an anti-slip rubber tube are fixedly sleeved on the second roller. Rotating the rotating handle drives the second roller to rotate, so as to drive the tire assembly to rotate between the two first rollers and the second roller.

[0014] Preferably, two pushing handles are fixedly installed on the fixed plate, and the two pushing handles are arranged on both sides of the fixed plate. Two directional wheels and two universal wheels are arranged at the bottom of the chassis, and the two directional wheels and the two universal wheels are distributed in a rectangle.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present invention provides an auxiliary device for installing a tire assembly that is easy to use and has the following beneficial effects:

[0017] 1. The auxiliary device for installing a tire assembly that is easy to use can, by starting the drive motor, make the two first rollers move towards each other during the process of lifting the tire assembly, so that the lower tooth plate and the upper tooth plate move towards each other to drive the two first rollers and the second roller to approach each other to lift and fix the tire assembly, thereby avoiding the tire from falling during transportation and improving safety.

[0018] 2. The auxiliary device for installing a tire assembly that is easy to use can adjust the distance between the two first rollers by pushing the device against the baffle, which is applicable to tire assemblies of different diameters, thereby improving the applicability of the device.

[0019] 3. The auxiliary device for installing a tire assembly that is easy to use can make the tire assembly rotate between the two first rollers and the second roller by rotating the rotating handle. This process only requires rotating the rotating handle for fine adjustment, which is more convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front external view structure diagram of the whole of the present invention;

[0021] Figure 2 is a side external view structure diagram of the whole of the present invention;

[0022] Figure 3 is a side external sectional view structure diagram of the whole of the present invention;

[0023] Figure 4 is a partial structure diagram of the whole of the present invention;

[0024] Figure 5 is of the present invention Figure 1 a partial enlarged structure diagram of part A;

[0025] Figure 6 is of the present invention Figure 2 a partial enlarged structure diagram of part B;

[0026] Figure 7 is of the present invention Figure 3 a partial enlarged structure diagram of part C;

[0027] Figure 8 is of the present invention Figure 3 a partial enlarged structure diagram of part D.

[0028] In the figure: 1, chassis; 2, fixed plate; 3, sliding opening; 4, lifting mechanism; 41, lifting plate; 42, notch; 43, first roller; 44, lower toothed plate; 45, first slider; 46, upper toothed plate; 47, second roller; 48, first gear; 5, driving mechanism; 51, threaded rod; 52, driving motor; 6, adjusting mechanism; 61, bidirectional lead screw; 62, threaded block; 63, second gear; 7, pushing mechanism; 71, slide bar; 72, baffle; 73, toothed plate; 74, return spring; 8, resistance mechanism; 81, resistance spring; 82, second slider; 9, toothed opening; 10, square rod; 11, toothed block; 12, rotating handle; 13, pushing handle. Detailed implementation manner

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1-8 , an auxiliary device for installing a tire assembly that is convenient to use, including a chassis 1. A fixed plate 2 is fixedly installed on the top of the chassis 1. A sliding opening 3 is opened on the fixed plate 2. A lifting mechanism 4 is arranged in the sliding opening 3. The lifting mechanism 4 includes a lifting plate 41 and a driving mechanism 5. A notch 42 is opened on the lifting plate 41. Two first rollers 43 and an adjusting mechanism 6 are arranged in the notch 42. The driving mechanism 5 can drive the two first rollers 43 to support the tire assembly and move along the sliding opening 3. A pushing mechanism 7 is arranged on the lifting plate 41. The pushing mechanism 7 can drive the adjusting mechanism 6 to adjust the distance between the two first rollers 43. A lower toothed plate 44 is arranged on the top of the lifting plate 41. A first slider 45 and a resistance mechanism 8 are arranged in the sliding opening 3. An upper toothed plate 46 and a second roller 47 are arranged on the first slider 45. The upper toothed plate 46 is arranged on one side of the lower toothed plate 44. A first gear 48 is arranged on one side of the resistance mechanism 8. The first gear 48 is arranged between the lower toothed plate 44 and the upper toothed plate 46 and meshes with the lower toothed plate 44 and the upper toothed plate 46; driven by the first driving mechanism 5, the two first rollers 43 drive the lower toothed plate 44 to move. At the same time, the resistance mechanism 8 hinders the upward movement of the first gear 48, so that the lower toothed plate 44 and the upper toothed plate 46 move towards each other, and then drives the two first rollers 43 and the second roller 47 to approach each other.

[0031] Further, the driving mechanism 5 includes a threaded rod 51 and a driving motor 52. The threaded rod 51 is rotatably connected to the bottom inner wall of the sliding opening 3, and the top end of the threaded rod 51 extends above the fixing plate 2. The output shaft of the driving motor 52 is fixedly connected to the output shaft of the threaded rod 51, and a mounting plate is provided on the outer wall of one side of the driving motor 52, and the mounting plate is fixedly connected to the outer wall of one side of the fixing plate 2. When the driving motor 52 is started, the output shaft of the driving motor 52 can drive the threaded rod 51 to rotate. The threaded rod 51 drives the two first rollers 43 to move in the sliding opening 3 through the lifting plate 41 to control the height at which the tire assembly is lifted.

[0032] Further, the adjusting mechanism 6 includes a bidirectional lead screw 61, two threaded blocks 62 and two second gears 63. The bidirectional lead screw 61 is rotatably connected to the inner walls on both sides of the notch 42. The two threaded blocks 62 are both threadedly connected to the bidirectional lead screw 61. The two second gears 63 are both sleeved on the bidirectional lead screw 61.

[0033] Further, the pushing mechanism 7 includes two slide rods 71, a baffle 72 and two toothed plates 73. The two slide rods 71 are both slidably matched with the lifting plate 41. The baffle 72 is fixedly connected to one end of the two slide rods 71. A return spring 74 is movably sleeved on the slide rod 71. One end of the return spring 74 is fixedly connected to the lifting plate 41, and the other end of the return spring 74 is fixedly connected to the baffle 72. The toothed plates 73 are both fixedly connected to the outer wall of one side of the baffle 72, and the toothed plates 73 are respectively engaged with the second gears 63. When the device is pushed to lift the tire assembly, after the tire assembly contacts the baffle 72, the device continues to be pushed forward. The baffle 72 is squeezed by the tire assembly to drive the toothed plate 73 to move. The toothed plate 73 drives the bidirectional lead screw 61 through the second gear 63 to drive the threaded block 62 to move simultaneously to adjust the distance between the two first rollers 43 and the second roller 47. When the device is pushed to lift the tire assembly, after the tire assembly contacts the baffle 72, the device continues to be pushed forward. The baffle 72 is squeezed by the tire assembly to drive the toothed plate 73 and the slide rod 71 to move simultaneously. At this time, the baffle 72 can compress the return spring 74 and store a certain amount of elastic potential energy. The toothed plate 73 drives the bidirectional lead screw 61 through the second gear 63 to drive the threaded block 62 to move simultaneously to adjust the distance between the two first rollers 43 and the second roller 47 to adapt to tire assemblies of different diameters.

[0034] Further, a plurality of tooth openings 9 are formed in the slide bar 71 on one side. One side of the lifting plate 41 is fixedly installed with a mounting block, and a square rod 10 is slidably fitted on the mounting block. The top end of the square rod 10 is fixedly installed with a lifting ring, and the bottom end of the square rod 10 is fixedly installed with a tooth block 11. The tooth block 11 extends into the tooth opening 9 and is adapted to it. During the movement of the slide bar 71, it will continuously squeeze the tooth block 11, driving the tooth block 11, the square rod 10 and the lifting ring to move upward simultaneously. After the slide bar stops moving, the tooth block 11, the square rod and the lifting ring can be fixed in one of the concave openings under the action of gravity.

[0035] Further, the resistance mechanism 8 includes a resistance spring 81 and a second slider 82. The resistance spring 81 is sleeved on the threaded rod 51. The second slider 82 is slidably fitted with the inner walls on both sides of the sliding opening 3, and the second slider 82 is arranged above the first slider 45. An avoidance hole is formed in the top of the first slider 45, and both the resistance spring 81 and the threaded rod 51 penetrate through the avoidance hole. During the process of lifting and clamping the tire assembly, the lower tooth plate 44 drives the first gear 48 to rotate. The first gear 48 drives the second slider 82 to compress the resistance spring 81, thereby preventing the second slider 82 from rising. After the second roller 47 contacts the tire assembly, the two first rollers 43 and the second roller 47 stop moving towards each other, and the first gear 48 stops rotating. During the process of lifting and clamping the tire assembly, as the lifting plate moves upward, it can drive the lower tooth plate 44 to drive the first gear 48 to rotate. During the rotation of the first gear 48, it will drive the second slider 82 to compress the resistance spring 81 to prevent the second slider 82 from rising. When the second roller 47 contacts the tire assembly, the two first rollers 43 and the second roller 47 stop moving towards each other, and the first gear 48 stops rotating. At this time, by continuously compressing the resistance spring 81, the tire assembly can continue to rise to a higher height.

[0036] Further, a rotating handle 12 and an anti-slip rubber tube are fixedly sleeved on the second roller 47. Rotating the rotating handle 12 drives the second roller 47 to rotate, so that the tire assembly rotates between the two first rollers 43 and the second roller 47 to complete fine adjustment of the position of the tire assembly.

[0037] Further, two push handles 13 are fixedly installed on the fixed plate 2, and the two push handles 13 are arranged on both sides of the fixed plate 2. Two directional wheels and two universal wheels are arranged at the bottom of the chassis 1, and the two directional wheels and the two universal wheels are distributed in a rectangle. The two universal wheels can facilitate changing the moving direction of the present moving device.

[0038] Working principle: When the device is pushed to lift the tire assembly, two first rollers are respectively distributed on both sides of the tire assembly, and the device is pushed forward. When the baffle 72 is squeezed by the tire assembly, the baffle can drive two toothed plates 73 and two slide bars 71 to move simultaneously. At this time, the baffle 72 can compress two return springs 74 and store a certain amount of elastic potential energy. The two toothed plates 73 drive the bidirectional lead screw 61 through two second gears 63 to drive two threaded blocks 62 to move simultaneously. The two threaded blocks 62 drive the two first rollers 43 to move. At the same time, during the movement of the corresponding slide bar 71, it will continuously squeeze the tooth block 11. Under the mutual cooperation of the tooth opening and the tooth block 11, it will drive the tooth block 11, the square rod 10 and the lifting ring to move along the direction of the square rod 10 simultaneously. When the distance between the two first rollers is less than the diameter of the tire assembly, stop pushing the device. The tooth block 11, the square rod and the lifting ring can be fixed in one of the notches under the action of gravity. Subsequently, the drive motor 52 can be started. The output shaft of the drive motor 52 can drive the threaded rod 51 to rotate. The threaded rod 51 drives the two first rollers 43, the lower toothed plate 44, the adjustment mechanism 6 and the pushing mechanism 7 to move simultaneously to lift the tire assembly. At the same time, when the lifting plate 41 moves upward, it can drive the lower toothed plate 44 to drive the first gear 48 to rotate. During the rotation of the first gear 48, it will drive the second slider 82 to compress the resistance spring 81 to prevent the second slider 82 from rising. When the second roller 47 contacts the tire assembly, the two first rollers 43 and the second roller 47 no longer move towards each other, and the first gear 48 stops rotating. At this time, the tire assembly continues to rise and the resistance spring 81 is compressed to store a certain amount of elastic potential energy. When it reaches the appropriate height, turn off the drive motor 52. Subsequently, turning the handle 12 to drive the second roller 47 to rotate can make the tire assembly rotate between the two first rollers 43 and the second roller 47 to complete the fine adjustment of the position of the mounting hole of the tire assembly. After the installation is completed, reverse-start the drive motor 52 and cooperate with the elastic force of the resistance spring 81 to make the device return to the initial state. When installing tire assemblies with different diameters, the pull ring can be pulled to release one of the slide bars 71, and under the action of the elastic force of the two return springs 74, the baffle 72 can be restored to the initial position. Repeating the above operations can install tire assemblies of different sizes.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for installing a tire assembly that is convenient to use, including a chassis (1), characterized in that: A fixed plate (2) is fixedly installed on the top of the chassis (1). A sliding opening (3) is formed in the fixed plate (2). A lifting mechanism (4) is arranged in the sliding opening (3). The lifting mechanism (4) includes a lifting plate (41) and a driving mechanism (5). A notch (42) is formed in the lifting plate (41). Two first rollers (43) and an adjusting mechanism (6) are arranged in the notch (42). The driving mechanism (5) can drive the two first rollers (43) to support the tire assembly to move along the sliding opening (3). A pushing mechanism (7) is arranged on the lifting plate (41). The pushing mechanism (7) can drive the adjusting mechanism (6) to adjust the distance between the two first rollers (43). A lower toothed plate (44) is arranged on the top of the lifting plate (41). A first slider (45) and a resistance mechanism (8) are arranged in the sliding opening (3). An upper toothed plate (46) and a second roller (47) are arranged on the first slider (45). The upper toothed plate (46) is arranged on one side of the lower toothed plate (44). A first gear (48) is arranged on one side of the resistance mechanism (8). The first gear (48) is arranged between the lower toothed plate (44) and the upper toothed plate (46) and meshes with the lower toothed plate (44) and the upper toothed plate (46). Driven by the first driving mechanism (5), the two first rollers (43) drive the lower toothed plate (44) to move. At the same time, the resistance mechanism (8) hinders the upward movement of the first gear (48), so that the lower toothed plate (44) and the upper toothed plate (46) move towards each other, and then drives the two first rollers (43) and the second roller (47) to approach each other.

2. An auxiliary device for installing a tire assembly that is convenient to use according to claim 1, characterized in that: The driving mechanism (5) includes a threaded rod (51) and a driving motor (52). The threaded rod (51) is rotatably connected to the bottom inner wall of the sliding opening (3). The top end of the threaded rod (51) extends above the fixed plate (2). The output shaft of the driving motor (52) is fixedly connected to the output shaft of the threaded rod (51). An installation plate is arranged on the outer wall of one side of the driving motor (52). The installation plate is fixedly connected to the outer wall of one side of the fixed plate (2).

3. An auxiliary device for installing a tire assembly that is convenient to use according to claim 1, characterized in that: The adjusting mechanism (6) includes a bidirectional lead screw (61), two threaded blocks (62) and two second gears (63). The bidirectional lead screw (61) is rotatably connected to the inner walls of both sides of the notch (42). The two threaded blocks (62) are both threadedly connected to the bidirectional lead screw (61). The two second gears (63) are both sleeved on the bidirectional lead screw (61).

4. An auxiliary device for installing a tire assembly that is convenient to use according to claim 3, characterized in that: The pushing mechanism (7) includes two sliding rods (71), a baffle (72) and two toothed plates (73). Both of the two sliding rods (71) are slidably engaged with the lifting plate (41). The baffle (72) is fixedly connected to one end of the two sliding rods (71). A return spring (74) is movably sleeved on the sliding rod (71). One end of the return spring (74) is fixedly connected to the lifting plate (41), and the other end of the return spring (74) is fixedly connected to the baffle (72). The toothed plates (73) are fixedly connected to the outer wall of one side of the baffle (72), and the toothed plates (73) are respectively meshed with the second gear (63). When the device is pushed to lift the tire assembly, after the tire assembly contacts the baffle (72), when the device continues to move forward, the baffle (72) is squeezed by the tire assembly to drive the toothed plate (73) to move. The toothed plate (73) drives the bidirectional lead screw (61) through the second gear (63) to drive the threaded block (62) to move simultaneously to adjust the distance between the two first rollers (43) and the second roller (47).

5. An auxiliary device for installing a tire assembly that is convenient to use according to claim 4, characterized in that ; A plurality of tooth openings (9) are formed in one of the sliding rods (71). A mounting block is fixedly installed on one side of the lifting plate (41). A square rod (10) is slidably engaged with the mounting block. A lifting ring is fixedly installed at the top of the square rod (10). A tooth block (11) is fixedly installed at the bottom of the square rod (10). The tooth block (11) extends into the tooth opening (9) and is adapted to it.

6. The auxiliary device for installing a tire assembly that is convenient to use according to claim 2, wherein: The resistance mechanism (8) includes a resistance spring (81) and a second slider (82). The resistance spring (81) is sleeved on the threaded rod (51). The second slider (82) is slidably engaged with the inner walls on both sides of the sliding opening (3). The second slider (82) is arranged below the first slider (45). An avoidance hole is formed in the top of the first slider (45). The resistance spring (81) and the threaded rod (51) both penetrate through the avoidance hole. During the process of lifting and clamping the tire assembly, the lower tooth plate (44) drives the first gear (48) to rotate. The first gear (48) drives the second slider (82) to compress the resistance spring (81), thereby preventing the second slider (82) from rising. After the second roller (47) contacts the tire assembly, the two first rollers (43) and the second roller (47) stop moving towards each other, and the first gear (48) stops rotating.

7. An auxiliary device for installing a tire assembly that is easy to use according to claim 1, characterized in that: A rotating handle (12) and an anti-slip rubber tube are fixedly sleeved on the second roller (47). Rotating the rotating handle (12) drives the second roller (47) to rotate, so as to drive the tire assembly to rotate between the two first rollers (43) and the second roller (47).

8. An auxiliary device for installing a tire assembly that is easy to use according to claim 1, characterized in that: Two pushing handles (13) are fixedly installed on the fixing plate (2). The two pushing handles (13) are arranged on both sides of the fixing plate (2). Two directional wheels and two universal wheels are arranged at the bottom of the chassis (1). The two directional wheels and the two universal wheels are distributed in a rectangle.

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