Tire expanding and replacing maintenance mechanism

Abstract

The utility model relates to the technical field of automobile maintenance, and discloses a tire expanding and replacing maintenance mechanism which comprises a maintenance platform, a U-shaped base is fixedly connected to the outer wall of the top of the maintenance platform, two L-shaped moving plates which move relatively are installed in the U-shaped base, and a plurality of connecting bases are fixedly connected to the opposite outer walls of the two L-shaped moving plates; according to the tire expanding device, the gears, the racks and the air cylinders are arranged, the two L-shaped moving plates can be driven to move relatively, during tire expanding, the tire expanding rods on the L-shaped moving plates are inserted into a gap between an inner tire and an outer tire of a tire, the two L-shaped moving plates are driven to be far away from each other, and then the tire expanding rods are driven to separate the inner tire from the outer tire; compared with the prior art, one driving source synchronously drives the two L-shaped moving plates to move relatively, automatic tire expanding operation is achieved, manual operation is not needed, time and labor are saved during operation, and the maintenance efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile maintenance, and in particular to a tire expansion and replacement maintenance mechanism. Background Art

[0002] "CN214822401U" discloses "a tire expansion device for automobile repair, comprising: a workbench, the interior of which is a hollow structure... the limit block is provided with a through hole that can be aligned with the threaded hole". The utility model drives the screw shaft to rotate by rotating the handle, converts the rotational motion of the screw shaft into the horizontal movement of the screw nut, and adjusts the distance between the tire expansion rods to adapt to tires of different sizes. When expanding the tire, after the tire expansion rod is inserted into the gap between the inner tube and the outer tube of the tire, the tire expansion rod is driven in the opposite direction by the driving mechanism to expand outward, so as to separate the inner and outer tubes and facilitate tire replacement;

[0003] With respect to the above-mentioned related technologies, the inventor believes that during the tire expansion operation, it is necessary to manually rotate the rotating handle sequentially or synchronously to drive the two tire expansion rods away from each other. The operation is relatively laborious, the degree of automation is low, and the maintenance efficiency is reduced. Therefore, a tire expansion and tire changing maintenance mechanism is proposed to solve the above problems.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that during the tire expansion operation, the rotating handle needs to be manually rotated sequentially or synchronously to drive the two tire expansion rods away from each other, the operation is relatively laborious, the degree of automation is low, and the maintenance efficiency is reduced, the present application provides a tire expansion and tire changing maintenance mechanism.

[0006] The tire expansion and replacement maintenance mechanism provided in this application adopts the following technical solution:

[0007] A tire expansion and tire replacement maintenance mechanism comprises a maintenance platform, wherein the top outer wall of the maintenance platform is fixedly connected to a U-shaped base, two L-shaped movable plates that move relatively are installed inside the U-shaped base, and the outer walls opposite to the two L-shaped movable plates are fixedly connected to a plurality of connecting seats, and the outer walls of the connecting seats are hinged with tire expansion rods, and the outer wall of the top middle section of the maintenance platform is fixedly connected to a placement rack, and the placement rack is located above the outer wall of the top middle section of the U-shaped base;

[0008] The bottom middle inner wall of the U-shaped base is rotatably connected to a gear via a rotating shaft, and racks are welded to the top outer walls of the two L-shaped movable plates. The two racks are meshed with the gears, and the gear is located between the two racks. The inner walls at both ends of the U-shaped base are fixedly connected to fixed plates, and a cylinder is fixedly installed on the outer wall of one of the fixed plates, and the output end of the cylinder passes through the fixed plate and is fixedly connected to the outer wall of an L-shaped movable plate.

[0009] Preferably, two limit blocks are fixedly connected to the outer wall of the middle section of the bottom of the U-shaped base, and the rack is located between the limit blocks and the gear.

[0010] Preferably, the bottom inner wall of the U-shaped base is fixedly connected to two slide rails, the outer wall of the slide rail is slidably connected to a slider, the slider is fixedly connected to the bottom outer wall of the L-shaped movable plate, and the rotating shaft of the gear is located between the two slide rails.

[0011] Preferably, a bottom plate is provided below the maintenance platform, and a plurality of telescopic columns are fixedly connected between the bottom plate and the maintenance platform, and the plurality of telescopic columns are evenly distributed at the four corner edge positions of the maintenance platform and the bottom plate.

[0012] Preferably, an oil cylinder is fixedly mounted on the top middle outer wall of the base plate, and an output end of the oil cylinder is fixedly connected to the bottom middle outer wall of the maintenance platform.

[0013] Preferably, a plurality of universal wheels are fixedly mounted on the bottom outer wall of the bottom plate, and the plurality of universal wheels are evenly distributed at the four corner edge positions of the bottom of the bottom plate.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] The two L-shaped movable plates can be driven to move relative to each other through the arranged gears, racks and cylinders. When expanding the tire, the tire expansion rod on the L-shaped movable plate is inserted into the gap between the inner tube and the outer tube of the tire, and the two L-shaped movable plates are driven away from each other, thereby driving the tire expansion rod to separate the inner and outer tires. Compared with the prior art, the two L-shaped movable plates are synchronously driven to move relative to each other by a driving source, thereby realizing automatic tire expansion operation, without manual operation, saving time and effort, and improving maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of an embodiment of the application;

[0017] Figure 2 is a three-dimensional schematic diagram of an embodiment of the application;

[0018] Figure 3 It is a partial cross-sectional view of an embodiment of the application.

[0019] Explanation of the reference numerals in the accompanying drawings: 1. Maintenance platform; 2. U-shaped base; 3. Telescopic column; 4. Bottom plate; 5. Universal wheel; 6. Cylinder; 7. Placement rack; 8. Slide rail; 9. Slider; 10. L-shaped moving plate; 11. Gear; 12. Rack; 13. Fixed plate; 14. Cylinder; 15. Connecting seat; 16. Tire expansion rod; 17. Limit block. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-3 This application is described in further detail.

[0021] The present application embodiment discloses a tire expansion and tire replacement maintenance mechanism. Figure 1-3 A tire expansion and tire changing maintenance mechanism comprises a maintenance platform 1, a top outer wall of the maintenance platform 1 is fixedly connected with a U-shaped base 2, two L-shaped movable plates 10 for relative movement are installed inside the U-shaped base 2, a plurality of connecting seats 15 are fixedly connected with the opposite outer walls of the two L-shaped movable plates 10, and a tire expansion rod 16 is hingedly connected to the outer wall of the connecting seat 15, and a placing rack 7 is fixedly connected with the outer wall of the middle section of the top of the maintenance platform 1, and the placing rack 7 is located above the outer wall of the middle section of the top of the U-shaped base 2;

[0022] The bottom middle inner wall of the U-shaped base 2 is rotatably connected to a gear 11 through a rotating shaft, and racks 12 are welded to the top outer walls of the two L-shaped movable plates 10. The two racks 12 are meshed with the gear 11, and the gear 11 is located between the two racks 12. The inner walls at both ends of the U-shaped base 2 are fixedly connected to fixed plates 13, and a cylinder 14 is fixedly installed on the outer wall of one of the fixed plates 13. The output end of the cylinder 14 passes through the fixed plate 13 and is fixedly connected to the outer wall of an L-shaped movable plate 10.

[0023] Two limit blocks 17 are fixedly connected to the outer wall of the bottom middle section of the U-shaped base 2, and the rack 12 is located between the limit blocks 17 and the gear 11. The limit blocks 17 are used to limit the rack 12 so that the rack 12 always remains in meshing with the gear 11 during the movement.

[0024] The bottom inner wall of the U-shaped base 2 is fixedly connected to two slide rails 8, the outer wall of the slide rail 8 is slidably connected to a slider 9, the slider 9 is fixedly connected to the bottom outer wall of the L-shaped movable plate 10, and the rotating shaft of the gear 11 is located between the two slide rails 8. When the L-shaped movable plate 10 moves, it will drive the slider 9 to slide on the outer wall of the slide rail 8, playing a guiding and limiting role, so that the L-shaped movable plate 10 always moves linearly and stably.

[0025] A base plate 4 is provided below the maintenance platform 1, and a plurality of telescopic columns 3 are fixedly connected between the base plate 4 and the maintenance platform 1. The plurality of telescopic columns 3 are evenly distributed at the four corner edge positions of the maintenance platform 1 and the base plate 4. When the maintenance platform 1 is raised or lowered, the plurality of telescopic columns 3 are driven to extend or retract, playing a supporting and limiting role, thereby preventing the maintenance platform 1 from tilting and shaking and increasing the structural stability.

[0026] An oil cylinder 6 is fixedly mounted on the top middle outer wall of the bottom plate 4 , and an output end of the oil cylinder 6 is fixedly connected to the bottom middle outer wall of the maintenance platform 1 .

[0027] A plurality of universal wheels 5 are fixedly mounted on the bottom outer wall of the bottom plate 4 . The plurality of universal wheels 5 are evenly distributed at the four corner edges of the bottom of the bottom plate 4 . The plurality of universal wheels 5 rotate on the ground to facilitate the transfer of the mechanism.

[0028] The implementation principle of the tire expansion and tire changing maintenance mechanism of the embodiment of the present application is as follows: when in use, the tire to be repaired and replaced is placed on the placement rack 7, and then the tire expansion rod 16 is rotated and inserted into the gap between the inner tube and the outer tube of the tire through the connecting seat 15, and the cylinder 14 is started. The output end of the cylinder 14 contracts, pulling an L-shaped movable plate 10 to move outward, at this time, one L-shaped movable plate 10 pulls a rack 12 outward to move, and one rack 12 drives the gear 11 meshed with it to rotate. When the gear 11 rotates, it drives another rack 12 meshed with it to move outward, and the other rack 12 pushes the other L-shaped movable plate 10 outward to move, and at this time, the two L-shaped movable plates 10 expand outward synchronously, and the L-shaped movable plate 10 drives the tire expansion rod 16 to separate the inner and outer tires, so that the maintenance personnel can change the tires conveniently;

[0029] In addition, the mechanism can lift the maintenance platform 1 through the oil cylinder 6 to realize the lifting function of the maintenance platform 1, which is convenient for maintenance personnel of different heights to operate. Compared with the existing technology, it is easy to operate and has a high degree of automation.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0033] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tire expansion and tire replacement maintenance mechanism, comprising a maintenance platform (1), characterized in that: The top outer wall of the maintenance platform (1) is fixedly connected to a U-shaped base (2), two L-shaped movable plates (10) are installed inside the U-shaped base (2) so as to move relative to each other, a plurality of connecting seats (15) are fixedly connected to the opposite outer walls of the two L-shaped movable plates (10), and a tire expansion rod (16) is hingedly connected to the outer wall of the connecting seat (15), and a placement rack (7) is fixedly connected to the outer wall of the middle section of the top of the maintenance platform (1), and the placement rack (7) is located above the outer wall of the middle section of the top of the U-shaped base (2); The bottom middle inner wall of the U-shaped base (2) is rotatably connected to a gear (11) via a rotating shaft, the top outer walls of the two L-shaped movable plates (10) are welded with racks (12), the two racks (12) are meshed with the gear (11), and the gear (11) is located between the two racks (12), the inner walls at both ends of the U-shaped base (2) are fixedly connected to fixed plates (13), the outer wall of one of the fixed plates (13) is fixedly mounted with a cylinder (14), and the output end of the cylinder (14) passes through the fixed plate (13) and is fixedly connected to the outer wall of one of the L-shaped movable plates (10).

2. A tire expansion and tire replacement maintenance mechanism according to claim 1, characterized in that: Two limit blocks (17) are fixedly connected to the outer wall of the middle section of the bottom of the U-shaped base (2), and the rack (12) is located between the limit blocks (17) and the gear (11).

3. A tire expansion and tire replacement maintenance mechanism according to claim 2, characterized in that: The bottom inner wall of the U-shaped base (2) is fixedly connected to two slide rails (8), the outer wall of the slide rail (8) is slidably connected to a slider (9), the slider (9) is fixedly connected to the bottom outer wall of the L-shaped movable plate (10), and the rotating shaft of the gear (11) is located between the two slide rails (8).

4. A tire expansion and tire replacement maintenance mechanism according to claim 1, characterized in that: A bottom plate (4) is provided below the maintenance platform (1), and a plurality of telescopic columns (3) are fixedly connected between the bottom plate (4) and the maintenance platform (1), and the plurality of telescopic columns (3) are evenly distributed at the four corner edge positions of the maintenance platform (1) and the bottom plate (4).

5. A tire expansion and tire replacement maintenance mechanism according to claim 4, characterized in that: An oil cylinder (6) is fixedly mounted on the top middle outer wall of the base plate (4), and an output end of the oil cylinder (6) is fixedly connected to the bottom middle outer wall of the maintenance platform (1).

6. A tire expansion and tire replacement maintenance mechanism according to claim 5, characterized in that: A plurality of universal wheels (5) are fixedly mounted on the bottom outer wall of the bottom plate (4), and the plurality of universal wheels (5) are evenly distributed at the four corner edge positions of the bottom of the bottom plate (4).

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