Tire separation device

By designing a tire separation device that allows for quick disassembly and installation of tire hooks, the problem of tire damage caused by damaged tire hooks in existing technologies has been solved, achieving rapid replacement of tire hooks and stable and efficient tire separation.

CN223972380UActive Publication Date: 2026-03-06GUANGDONG SHIHUA ELECTROMECHANICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-25
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing tire release devices are difficult to replace individually when the tire release hooks are damaged or worn, which can damage the tires and affect their quality.

Method used

A tire separation device was designed, which enables the quick disassembly and installation of tire-removing hooks by loosening the locking screw, rotating the positioning block and tension spring. Combined with the use of drive motor and servo motor, it can adapt to tires of different sizes, and a stable support structure is formed by fixing the clamping plate to ensure the stability of the separation process.

Benefits of technology

It enables quick replacement of tire-removing hooks, reduces the possibility of tire damage from wear, improves separation efficiency and stability, and adapts to the separation needs of tires of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of tire separation, and particularly relates to a tire separation device which comprises an installation block, an installation ring is movably installed on the outer side of the installation block, an installation hole is formed in the installation block and the installation ring in a penetrating mode, a limiting block is installed on one side of a limiting rod, and an extension spring is fixedly connected between one side of the limiting block and a supporting frame. A positioning block is mounted on the outer side of the rotating shaft, a locking screw rod is rotationally mounted on one side of the bottom end of the positioning block, and a tire removing claw is mounted on the bottom side of the mounting ring; the locking screw rod is loosened to be separated from the mounting ring, the positioning block is rotated to be horizontal to the limiting rod, the limiting block is pulled outwards to stretch the spring, the limiting rod retreats from the mounting hole, and the old hook claw is separated from the mounting block along with the mounting ring; during mounting, the limiting rods are inserted into the mounting holes of the mounting rings and the mounting blocks by utilizing the counter-acting force of the extension springs, the positioning blocks are rotated to be perpendicular to the limiting rods, and the locking screws are tightened to abut against the mounting rings, so that quick replacement is realized, maintenance is facilitated, and tire damage is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of tire separation technology, specifically a tire separation device. Background Technology

[0002] Tires are circular, elastic rubber products that are mounted on various vehicles or machinery and roll on the ground. When performing regular tire maintenance, it is necessary to check whether the internal structure of the tire is damaged, clean the debris inside the tire, and also separate the tire from the rim. Therefore, a separation device is required.

[0003] Existing tire separation devices fix the tire and rim, then a cylinder drives a hook to press down and insert into the gap between the tire and the rim. At the same time, a rotating motor drives the tire to rotate, and the separation is achieved by using the fulcrum of the hook and the circumferential force of the tire's rotation.

[0004] However, the above-mentioned device still has some problems. In practical applications, when the tire-removing hook is damaged, the hook tip is worn, or the hook body is deformed, it is difficult to replace it individually. This will cause damage to the tire when the hook is separating the tire, affecting the tire quality. Therefore, a tire separation device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes a tire separation device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A tire separation device of this utility model includes a workbench, an mounting block installed directly above the workbench, an mounting ring movably mounted on the outer side of the mounting block, a mounting hole penetrating through the interior of the mounting block and the mounting ring, a support frame mounted on one side of the mounting block, a limit rod slidably mounted inside the support frame, a limit block mounted on one side of the limit rod, and a tension spring fixedly connected between one side of the limit block and the support frame, the tension spring being sleeved on the outer side of the limit rod. On one side, one end of the limiting rod passes through the mounting hole and extends to the other side of the mounting ring. A mounting base is installed on the other side of the limiting rod. A rotating shaft is rotatably mounted inside the mounting base. A positioning block is installed on the outside of the rotating shaft. A locking screw is rotatably mounted on one side of the bottom end of the positioning block. One end of the locking screw abuts against one side of the mounting ring. A tire-removing hook is installed on the bottom side of the mounting ring, which realizes the quick disassembly and installation of the tire-removing hook, facilitates the maintenance and replacement of the tire-removing hook, and reduces the possibility of tire damage caused by worn tire-removing hooks.

[0007] Preferably, a fixed frame is installed on the top side of the workbench, a drive motor is installed on one side of the top of the fixed frame, a threaded rod is installed on the output end of the drive motor, a sliding groove is opened inside the top side of the fixed frame, a slider is slidably installed inside the sliding groove, a threaded hole is opened inside the slider, one end of the threaded rod passes through the threaded hole and is rotatably installed inside one side of the sliding groove, a cylinder is installed on the bottom side of the slider, and a mounting block is installed on the bottom side of the working end of the cylinder. By driving the threaded rod to rotate through the drive motor, the slider can be driven to slide in the sliding groove, thereby adjusting the position of the cylinder and the mounting block, so that the device can adapt to the separation operation of tires of different sizes.

[0008] Preferably, the workbench has an internal mounting cavity, and a motor is mounted on the bottom inner wall of the mounting cavity. The output end of the motor extends slidably to the top of the workbench and is fitted with a mounting frame. The motor drives the mounting frame to rotate, which in turn rotates the tire. This facilitates the separation of the tire and rim by the tire-removing hook, improving separation efficiency.

[0009] Preferably, a servo motor is installed inside the bottom side of the mounting frame, and a turntable is installed at the output end of the servo motor. The turntable has four arc-shaped grooves inside, and a sliding rod is slidably installed inside the arc-shaped grooves. The top side of the mounting frame has four rectangular grooves at equal intervals, and a fixing plate is slidably installed inside the rectangular grooves. The top of the sliding rod is fixed to the bottom side of the fixing plate. By driving the turntable to rotate through the servo motor, the sliding rod can be moved to slide within the arc-shaped grooves, thereby adjusting the position of the fixing plate. This achieves the fixing of the rims in tires of different sizes and improves the stability during the tire separation process.

[0010] Preferably, a storage battery is installed on the outside of the mounting frame, and a control switch is installed on the top side of the storage battery. The storage battery is used to supply power to the servo motor and the control switch, and the control switch is used to control the start and stop of the servo motor, so that the servo motor and the control switch have independent power sources and control methods, which facilitates operation.

[0011] Preferably, a control panel is installed on one side of the workbench. The control panel is electrically connected to the drive motor, cylinder, and No. 1 motor. It is used to operate and control the drive motor, cylinder, and No. 1 motor, realizing centralized control of electrical components other than the servo motor inside the device.

[0012] The advantages of this utility model are:

[0013] 1. This utility model allows for quick replacement by loosening the locking screw to disengage it from the mounting ring, rotating the positioning block to be horizontal with the limit rod, and pulling the limit block's tension spring outward to disengage the limit rod from the mounting hole. The old hook claw separates from the mounting ring and mounting block. When installing a new hook claw, align the mounting holes of the mounting ring and mounting block, use the reaction force of the tension spring to insert the limit rod into the hole, rotate the positioning block to be perpendicular to the limit rod, and tighten the locking screw to press against the mounting ring. This facilitates quick replacement, easy maintenance, and reduces tire damage.

[0014] 2. The output end of the drive motor of this utility model drives the threaded rod to rotate, and the slider slides laterally along the slide groove, so that the mounting block and the tire-removing hook are aligned with the contact position of the tire and the wheel hub. After the position is aligned, the cylinder is started through the control panel. The piston rod of the cylinder extends downward, pushing the mounting block and the mounting ring to move downward. The tire-removing hook gradually approaches the top edge of the tire, which can adapt to the separation operation of tires of different sizes.

[0015] 3. The servo motor of this utility model starts and drives the turntable to rotate. The four arc-shaped grooves on the turntable rotate with the turntable. The slide rod slides in the arc-shaped grooves and pushes the fixed clamping plate to move outward along the rectangular groove. When the fixed clamping plate contacts the inner side of the wheel hub, the operator presses the control switch again and the servo motor stops rotating. At this time, the four fixed clamping plates are evenly distributed on the inner wall around the wheel hub to form a stable support structure, ensuring that the tire will not shake during the separation process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the intermediate axis side view of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the main body of the tire separation device.

[0019] Figure 3 This is a schematic diagram of the internal main structure of the fixing frame;

[0020] Figure 4 A schematic diagram showing the structure of the tire-removing hook for easy replacement of components;

[0021] Figure 5 This is a schematic diagram of the tire fixing assembly.

[0022] In the diagram: 1. Workbench; 2. Mounting block; 3. Mounting ring; 4. Mounting hole; 5. Support frame; 6. Limiting rod; 7. Limiting block; 8. Tension spring; 9. Mounting seat; 10. Rotating shaft; 11. Positioning block; 12. Locking screw; 13. Tire-changing hook; 14. Fixing frame; 15. Drive motor; 16. Threaded rod; 17. Slide groove; 18. Slider; 19. Cylinder; 20. Mounting cavity; 21. Motor No. 1; 22. Mounting frame; 23. Servo motor; 24. Turntable; 25. Arc groove; 26. Slide rod; 27. Rectangular groove; 28. Fixing clamp; 29. ​​Storage battery; 30. Control switch; 31. Control panel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figure 1-4 As shown, a tire separation device includes a workbench 1. An installation block 2 is mounted on the top of the workbench 1. An installation ring 3 is movably mounted on the outer side of the installation block 2. An installation hole 4 is opened through the interior of both the installation block 2 and the installation ring 3. A support frame 5 is mounted on one side of the installation block 2. A limit rod 6 is slidably mounted through the interior of the support frame 5. A limit block 7 is mounted on one side of the limit rod 6. A tension spring 8 is fixed between one side of the limit block 7 and the support frame 5. The tension spring 8 is sleeved on the outer side of the limit rod 6. One end of the limit rod 6 passes through the installation hole 4 and extends to the other side of the installation ring 3. An installation seat 9 is mounted on the other side of the limit rod 6. A rotating shaft 10 is rotatably mounted through the interior of the installation seat 9. A positioning block 11 is mounted on the outer side of the rotating shaft 10. A locking screw 12 is rotatably mounted on one side of the bottom end of the positioning block 11. One end of the locking screw 12 abuts against one side of the installation ring 3. A tire-removing hook 13 is mounted on the bottom side of the installation ring 3.

[0025] A fixed frame 14 is installed on the top side of the workbench 1. A drive motor 15 is installed on one side of the top of the fixed frame 14. A threaded rod 16 is installed on the output end of the drive motor 15. A sliding groove 17 is opened inside the top side of the fixed frame 14. A slider 18 is slidably installed inside the sliding groove 17. A threaded hole is opened inside the slider 18. One end of the threaded rod 16 passes through the threaded hole and is rotatably installed inside one side of the sliding groove 17. A cylinder 19 is installed on the bottom side of the slider 18. The mounting block 2 is installed on the bottom side of the working end of the cylinder 19.

[0026] A control panel 31 is installed on one side of the workbench 1. The control panel 31 is electrically connected to the drive motor 15, cylinder 19, and motor 21, and is used to control the operation of the drive motor 15, cylinder 19, and motor 21. In practical applications, when the tire-removing hook 13 is damaged, such as with worn tips or deformed hooks, it is difficult to replace it individually. This can lead to damage to the tire during tire separation, affecting its quality. The control panel 31 starts the drive motor 15, whose output drives the threaded rod 16 to rotate, and the slider 18 moves along... The slide 17 slides laterally, aligning the mounting block 2 and the tire-removing hook 13 with the contact position between the tire and the rim. After alignment, the cylinder 19 is activated via the control panel 31. The piston rod of the cylinder 19 extends downward, pushing the mounting block 2 and the mounting ring 3 downward. The tire-removing hook 13 gradually approaches the top edge of the tire, which can accommodate tires of different sizes for separation. When the tire-removing hook 13 contacts the outer surface of the tire, the cylinder 19 stops and enters the separation state. Manually, using tools such as pry bars, external force is applied at the joint between the tire and the rim to initially pry open a small gap, making it easier for the tire-removing hook 13 to insert into the inside of the tire.

[0027] Loosen the locking screw 12 to disengage it from the mounting ring 3. Rotate the positioning block 11 so that it is on the same horizontal line as the limiting rod 6. Pull the limiting block 7 outward, stretching the tension spring 8. The limiting rod 6 exits from the mounting hole 4, and the old tire-removing hook 13 separates from the mounting block 2 along with the mounting ring 3. Then, align the mounting ring 3 of the new tire-removing hook 13 with the mounting block 2 so that the mounting hole 4 is aligned. Under the reaction force of the tension spring 8, push the mounting seat 9 and the limiting rod 6 into the mounting hole 4. Then, rotate the positioning block 11 so that it is perpendicular to the limiting rod 6. Tighten the locking screw 12 so that the positioning block 11 presses against the mounting ring 3 through the locking screw 12, thus completing the fixation. This enables the quick disassembly and installation of the tire-removing hook 13, facilitating the maintenance and replacement of the tire-removing hook 13 and reducing the possibility of tire damage caused by worn tire-removing hook 13.

[0028] Please see Figure 1 , 2 As shown in Figure 5, the workbench 1 has an installation cavity 20 inside, and a No. 1 motor 21 is installed on the bottom inner wall of the installation cavity 20. The output end of the No. 1 motor 21 slides to the top of the workbench 1 and is installed with an installation frame 22.

[0029] A servo motor 23 is installed inside the bottom side of the mounting frame 22. A turntable 24 is installed at the output end of the servo motor 23. Four arc-shaped grooves 25 are opened inside the turntable 24. A slide rod 26 is slidably installed inside the arc-shaped grooves 25. Four rectangular grooves 27 are equidistantly opened inside the top side of the mounting frame 22. A fixing plate 28 is slidably installed inside the rectangular grooves 27. The top end of the slide rod 26 is fixed to the bottom side of the fixing plate 28.

[0030] A storage battery 29 is mounted on the outside of the mounting frame 22, and a control switch 30 is mounted on the top side of the storage battery 29. During operation, the tire is a circular, elastic rubber product that rolls on the ground and is mounted on various vehicles or machinery. Regular tire maintenance involves checking for damage to the internal structure, cleaning debris from inside the tire, and separating the tire from the rim. Therefore, a separation device is needed. The tire rim to be separated is fitted onto the outside of the fixing clamp 28 at the top of the mounting frame 22. The operator presses the control switch 30, and the storage battery 29 supplies power to the servo motor 23. 23 starts and drives the turntable 24 to rotate. The four arc-shaped grooves 25 on the turntable 24 rotate with the turntable 24. The slide bar 26 slides in the arc-shaped grooves 25, pushing the fixed clamping plate 28 to move outward along the rectangular groove 27. When the fixed clamping plate 28 contacts the inner side of the wheel hub, the operator presses the control switch 30 again, and the servo motor 23 stops rotating. At this time, the four fixed clamping plates 28 are evenly distributed on the inner wall around the wheel hub, forming a stable support structure to ensure that the tire will not shake during the separation process. The specific model of the control switch 30 is LAY3-11ZS / 2. The outer side of the fixed clamping plate 28 is made of anti-slip material.

[0031] The first motor 21 is started by controlling panel 31. Its output end drives the mounting frame 22 to rotate. The tire rotates synchronously with the mounting frame 22. At this time, the tire-removing hook 13 has been inserted into the gap between the tire and the rim. When the tire rotates, the tire-removing hook 13 applies a continuous separation force to the inside of the tire, gradually peeling the tire off the rim.

[0032] Working principle: The tire hub to be separated is mounted on the outside of the fixing clamp 28 on the top of the mounting frame 22. The operator presses the control switch 30, and the storage battery 29 supplies power to the servo motor 23. The servo motor 23 starts and drives the turntable 24 to rotate. The four arc-shaped grooves 25 on the turntable 24 rotate with the turntable 24. The slide rod 26 slides in the arc-shaped grooves 25, pushing the fixing clamp 28 to move outward along the rectangular groove 27. When the fixing clamp 28 contacts the inside of the hub, the operator presses the control switch 30 again, and the servo motor 23 stops rotating. At this time, the four fixing clamps 28 are evenly distributed on the inner wall around the hub, forming a stable support structure to ensure that the tire does not shake during the separation process.

[0033] The drive motor 15 is started via the control panel 31, and its output end drives the threaded rod 16 to rotate. The slider 18 slides laterally along the groove 17, so that the mounting block 2 and the tire-removing hook 13 are aligned with the contact position of the tire and the wheel hub. After the position is aligned, the cylinder 19 is started via the control panel 31. The piston rod of the cylinder 19 extends downward, pushing the mounting block 2 and the mounting ring 3 to move downward. The tire-removing hook 13 gradually approaches the top edge of the tire, which can adapt to tires of different sizes for separation operations. When the tire-removing hook 13 contacts the outer surface of the tire, the cylinder 19 stops and enters the separation state. Manually using tools such as pry bars, external force is applied at the joint between the tire and the wheel hub to initially pry open a small gap, making it easier for the tire-removing hook 13 to insert into the inside of the tire.

[0034] The first motor 21 is started by the control panel 31. Its output end drives the mounting frame 22 to rotate. The tire rotates synchronously with the mounting frame 22. At this time, the tire-removing hook 13 has been inserted into the gap between the tire and the rim. When the tire rotates, the tire-removing hook 13 applies a continuous separation force to the inside of the tire, gradually peeling the tire off the rim.

[0035] Loosen the locking screw 12 to disengage it from the mounting ring 3. Rotate the positioning block 11 so that it is on the same horizontal line as the limiting rod 6. Pull the limiting block 7 outward, stretching the tension spring 8. The limiting rod 6 exits from the mounting hole 4, and the old tire-removing hook 13 separates from the mounting block 2 along with the mounting ring 3. Then, align the mounting ring 3 of the new tire-removing hook 13 with the mounting block 2 so that the mounting hole 4 is aligned. Under the reaction force of the tension spring 8, push the mounting seat 9 and the limiting rod 6 into the mounting hole 4. Then, rotate the positioning block 11 so that it is perpendicular to the limiting rod 6. Tighten the locking screw 12 so that the positioning block 11 presses against the mounting ring 3 through the locking screw 12, thus completing the fixation. This enables the quick disassembly and installation of the tire-removing hook 13, facilitating the maintenance and replacement of the tire-removing hook 13 and reducing the possibility of tire damage caused by worn tire-removing hook 13.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A tire separation apparatus, characterized by: The application relates to a tire changing device, which comprises a workbench (1), a mounting block (2) mounted above the workbench (1), a mounting ring (3) movably mounted on the outer side of the mounting block (2), a mounting hole (4) penetrating through the mounting block (2) and the mounting ring (3), a support frame (5) mounted on one side of the mounting block (2), a limiting rod (6) slidingly penetrating through the inside of the support frame (5), a limiting block (7) mounted on one side of the limiting rod (6), a tension spring (8) fixed between one side of the limiting block (7) and the support frame (5), the tension spring (8) being sleeved on the outer side of the limiting rod (6), one end of the limiting rod (6) penetrating through the mounting hole (4) and extending to the other side of the mounting ring (3), an installation seat (9) mounted on the other side of the limiting rod (6), a rotating shaft (10) rotatably penetrating through the inside of the installation seat (9), a positioning block (11) mounted on the outer side of the rotating shaft (10), a locking screw (12) rotatably mounted on the bottom end of one side of the positioning block (11), and a tire claw (13) mounted on the bottom side of the mounting ring (3).

2. A tyre separating device according to claim 1, characterised in that: A fixed frame (14) is mounted on the top side of the workbench (1), a driving motor (15) is mounted on the top end of one side of the fixed frame (14), a threaded rod (16) is mounted on the output end of the driving motor (15), a sliding groove (17) is formed in the top side of the fixed frame (14), a sliding block (18) is slidingly mounted in the sliding groove (17), a screw hole is formed in the inside of the sliding block (18), one end of the threaded rod (16) penetrates through the screw hole and is rotatably mounted in the inside of one side of the sliding groove (17), an air cylinder (19) is mounted on the bottom side of the sliding block (18), and the mounting block (2) is mounted on the bottom side of the acting end of the air cylinder (19).

3. A tyre separating device according to claim 2, characterised in that: A mounting cavity (20) is formed in the inside of the workbench (1), a first motor (21) is mounted on the bottom side of the inner wall of the mounting cavity (20), and the output end of the first motor (21) slidingly extends to the upper side of the workbench (1) and is provided with a mounting frame (22).

4. A tyre separating device according to claim 3, characterised in that: A servo motor (23) is mounted on the bottom side of the inside of the mounting frame (22), a rotating disc (24) is mounted on the output end of the servo motor (23), four arc-shaped grooves (25) are formed in the inside of the rotating disc (24), sliding rods (26) are slidingly mounted in the arc-shaped grooves (25), four rectangular grooves (27) are equidistantly formed in the top side of the inside of the mounting frame (22), fixed clamping plates (28) are slidingly mounted in the rectangular grooves (27), and the top ends of the sliding rods (26) are fixed on the bottom side of the fixed clamping plates (28).

5. A tyre separating device according to claim 4, characterised in that: A storage battery (29) is mounted on the outside of the mounting frame (22), a control switch (30) is mounted on the top side of the storage battery (29), the storage battery (29) is used for supplying power to the servo motor (23) and the control switch (30), and the control switch (30) is used for controlling the start-stop control of the servo motor (23).

6. A tyre separating device according to claim 3, characterised in that: One side of the workbench (1) is provided with a control panel (31), the control panel (31) is electrically connected with the driving motor (15), the cylinder (19), the first motor (21), wherein the driving motor (15), the cylinder (19), the first motor (21) are controlled.