A portable tire expander

Abstract

The utility model belongs to the field of the tire repair and expansion technology, concretely is a kind of portable tire expander, including control handle, the side wall of control handle is fixedly connected with limiting rod;Two the end of the limiting rod far from control handle is fixedly connected with fixed block;The side wall of control handle is slidably connected with sliding rod;The end of sliding rod is fixedly connected with movable block;The side wall of control handle is rotatably connected with pressing block, and the end of pressing block is rotatably connected with push block;The inside of push block is fixedly connected with first limit block;The utility model is pushed sliding rod by setting pressing block, push block, first limit block, sets stop block, second limit block to avoid sliding rod reverse movement, simultaneously with the help of first U type claw and second U type claw tire is dug, it is favorable to realize the tire digging action of convenient, it is favorable to promote the tire maintenance rate of staff.

Description

Technical Field

[0001] This utility model belongs to the field of automotive tire expansion technology, specifically a portable tire expander. Background Technology

[0002] A tire expander is an industrial device used for tire retreading and inspection. It expands the tire bead to assist in detecting tire damage and can also perform operations such as padding, installing and removing water tires. It is suitable for tires of certain sizes and specifications, and is mainly divided into two-claw, four-claw, and partial tire expanders. It is commonly used for tire repair of cars, electric vehicles, and other vehicles.

[0003] In current electric vehicle repair practices, workers typically pry open the tires manually or with a pry bar, which is time-consuming and labor-intensive. Furthermore, during the tire prying process, the tires are prone to rebounding due to their own elasticity, which can affect the repair work and cause inconvenience, thus impacting work efficiency.

[0004] Therefore, this utility model provides a portable tire expander. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A portable tire expander according to this utility model includes a control handle; a limiting rod is fixedly connected to the side wall of the control handle, and two limiting rods are arranged correspondingly; a fixing block is fixedly connected to the ends of the two limiting rods away from the control handle; a sliding rod is slidably connected to the side wall of the control handle; a movable block is fixedly connected to the end of the sliding rod, and the movable block is slidably connected to the limiting rod; a first U-shaped claw is rotatably connected to the top of the movable block; a second U-shaped claw is rotatably connected to the top of the limiting rod; and the side wall of the control handle... A pressing block is rotatably connected, and a push block is rotatably connected to the end of the pressing block; a first limiting block is fixedly connected inside the push block; a stop block is rotatably connected to the side wall of the control handle, and a second limiting block is fixedly connected to the side wall of the control handle; a return spring is fixedly connected to the side wall of the control handle; with the above structure, the pressing block, push block, and first limiting block push the sliding rod, and the stop block and second limiting block prevent the sliding rod from moving in the opposite direction. At the same time, the first U-shaped claw and the second U-shaped claw help to pry open the tire, which is conducive to realizing convenient tire prying action and improving the tire repair speed of workers.

[0007] Preferably, a first auxiliary frame is fixedly connected to the side wall of the first U-shaped claw; a second auxiliary frame is fixedly connected to the side wall of the second U-shaped claw; the control handle, limiting rod, fixing block, sliding rod, movable block, first U-shaped claw, second U-shaped claw, pressing block, pushing block, first limiting block, stop block, second limiting block, first auxiliary frame, and second auxiliary frame are made of stainless steel; through the above structure, the setting of the first auxiliary frame and the second auxiliary frame makes the angle adjustment of the first U-shaped claw and the second U-shaped claw more convenient, providing convenience for the worker's tire-changing operation, enhancing the convenience and practicality of the tire expander, and at the same time, the use of stainless steel for multiple components enhances its structural strength, which is conducive to extending the service life of the tire expander.

[0008] Preferably, a lubrication protrusion is fixedly connected to the side wall of the movable block, and the lubrication protrusion is sized to correspond to the first U-shaped claw; a lubrication protrusion is provided on the top of the limiting rod, and the lubrication protrusion is sized to correspond to the second U-shaped claw; through the above structure, multiple lubrication protrusions are provided to increase the contact area between the first U-shaped claw, the second U-shaped claw and their connected components, providing a larger area for the application of lubricant, which is beneficial to maintain the lubrication effect for a longer time and extend the service life of the tire expander.

[0009] Preferably, a foot support is fixedly connected between the control handle and the fixed block, and the two foot supports are arranged correspondingly; a reinforcing block is fixedly connected between the control handle and the fixed block, and multiple reinforcing blocks are arranged correspondingly; through the above structure, the two foot supports allow the main body of the tire expander to be lifted off the ground, thereby avoiding the impact of ground friction on the normal operation of the tire expander, enhancing the stability and practicality of the tire expander. At the same time, the reinforcing blocks enhance the structural strength of the tire expander body, which helps to reduce its deformation under stress.

[0010] Preferably, an inner support block is fixed to the inner sidewall of the pressing block, and multiple inner support blocks are arranged in a corresponding manner. Through the above structure, multiple inner support blocks are set inside the pressing block to enhance its structural stability, which helps to avoid large deformation of the pressing block during the process of being stressed, enhances the structural strength of the tire expander, and helps to extend the service life of the tire expander.

[0011] Preferably, a spring platform is fixed to the side wall of the control handle, and the two spring platforms are respectively set to the positions of the reset spring. Through the above structure, the spring platforms increase the surface area of ​​the corresponding parts of the control handle, providing sufficient position for fixing the reset spring, which helps to prevent the reset spring from shifting during the force process and improves the stability of the tire expander.

[0012] Preferably, an auxiliary handle is fixed to the end of the sliding rod, and the cross-section of the sliding rod and the auxiliary handle is a regular hexagon. With the above structure, the auxiliary handle makes it convenient for the operator to reset the sliding rod. At the same time, the regular hexagonal cross-section of the sliding rod increases the contact area between the push block, the stop block and the sliding rod, which helps to enhance the stability of the tire expander.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The portable tire expander of this utility model pushes a sliding rod by setting a pressing block, a pushing block, and a first limiting block, and sets a stop block and a second limiting block to prevent the sliding rod from moving in the opposite direction. At the same time, the tire is pried open by the first U-shaped claw and the second U-shaped claw, which facilitates the convenient tire prying action and improves the tire repair speed of the workers.

[0015] 2. The portable tire expander of this utility model, by setting a first auxiliary frame and a second auxiliary frame, makes it easier to adjust the angle of the first U-shaped claw and the second U-shaped claw, providing convenience for workers to remove tires and enhancing the convenience and practicality of the tire expander. At the same time, the use of stainless steel for multiple components enhances its structural strength and helps to extend the service life of the tire expander. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the control handle in this utility model;

[0019] Figure 3 This is a schematic diagram of the pressing block in this utility model;

[0020] Figure 4 This is a schematic diagram of the foot support structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the movable block in this utility model.

[0022] In the diagram: 1. Control handle; 11. Limiting rod; 12. Fixing block; 13. Sliding rod; 14. Movable block; 15. First U-shaped claw; 16. Second U-shaped claw; 17. Pressing block; 18. Pushing block; 180. First limiting block; 19. Stopping block; 190. Second limiting block; 110. Return spring; 2. First auxiliary frame; 21. Second auxiliary frame; 3. Lubricating protrusion; 4. Foot support; 41. Reinforcing block; 5. Inner support block; 6. Spring platform; 7. Auxiliary handle. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5As shown, a portable tire expander according to an embodiment of the present invention includes a control handle 1. Limiting rods 11 are fixedly connected to the side wall of the control handle 1, and two limiting rods 11 are correspondingly arranged. Fixing blocks 12 are fixedly connected to the ends of the two limiting rods 11 away from the control handle 1. A sliding rod 13 is slidably connected to the side wall of the control handle 1. A movable block 14 is fixedly connected to the end of the sliding rod 13, and the movable block 14 is slidably connected to the limiting rods 11. A first U-shaped claw 15 is rotatably connected to the top of the movable block 14. A second U-shaped claw 16 is rotatably connected to the top of the limiting rods 11. A pressing mechanism is rotatably connected to the side wall of the control handle 1. Block 17 is pressed, and a push block 18 is rotatably connected to the end of the pressing block 17; a first limiting block 180 is fixedly connected inside the push block 18; a stop block 19 is rotatably connected to the side wall of the control handle 1, and a second limiting block 190 is fixedly connected to the side wall of the control handle 1; a return spring 110 is fixedly connected to the side wall of the control handle 1; during operation, the operator can first pry the first U-shaped claw 15 and the second U-shaped claw 16 into both sides of the tire, wherein the push block 18 and the stop block 19 are respectively set to the sliding rod 13, and the two return springs 110 are respectively set to the push block 18 and the stop block 19. The operator can press the push block 18 repeatedly to release the tire. The position of the sliding rod 13 is adjusted by pressing the pressing block 17, thereby adjusting the distance between the first U-shaped claw 15 and the second U-shaped claw 16, ultimately prying open the tire. During the process, whenever the pressing block 17 is pressed, the push block 18 will contact the side wall of the sliding rod 13 at an inclined angle under the limitation of the first limiting block 180. At this time, the sliding rod 13 will move under the friction of the push block 18, and the movable block 14 will move away from the control handle 1. The movable block 14 is slidably connected to the limiting rod 11. After the pressing block 17 is pressed, the corresponding return spring 110 can reset the push block 18. Since the stop block 19 is restricted by the second limiting block 190 and the stop block 19 contacts the side wall of the sliding rod 13, the position of the sliding rod 13 will be locked after movement. The fixing block 12 serves to connect the ends of the two limiting rods 11. With the above structure, the pressing block 17, the pushing block 18, and the first limiting block 180 push the sliding rod 13, and the stop block 19 and the second limiting block 190 prevent the sliding rod 13 from moving in the opposite direction. At the same time, the tire is pried open with the help of the first U-shaped claw 15 and the second U-shaped claw 16, which is conducive to realizing convenient tire prying action and improving the tire repair speed of the workers.

[0026] like Figure 1 and Figure 5As shown, a first auxiliary frame 2 is fixedly connected to the side wall of the first U-shaped claw 15; a second auxiliary frame 21 is fixedly connected to the side wall of the second U-shaped claw 16; the control handle 1, limit rod 11, fixing block 12, sliding rod 13, movable block 14, first U-shaped claw 15, second U-shaped claw 16, pressing block 17, pushing block 18, first limit block 180, stop block 19, second limit block 190, first auxiliary frame 2, and second auxiliary frame 21 are made of stainless steel; during operation, the operator can use the first auxiliary frame 2 and second auxiliary frame 21 to adjust the angle of the first U-shaped claw 15 and the second U-shaped claw 16, thereby making it easier to insert the first U-shaped claw 15 and the second U-shaped claw 16 into the tire. The use of stainless steel enhances the structural strength of the control handle 1, limit rod 11, fixing block 12, sliding rod 13, movable block 14, first U-shaped claw 15, second U-shaped claw 16, pressing block 17, pushing block 18, first limit block 180, stop block 19, second limit block 190, first auxiliary frame 2, and second auxiliary frame 21. Through the above structure, the first auxiliary frame 2 and second auxiliary frame 21 facilitate the angle adjustment of the first U-shaped claw 15 and the second U-shaped claw 16, providing convenience for tire-changing operations and enhancing the convenience and practicality of the tire expander. Furthermore, the use of stainless steel for multiple components strengthens their structural strength, which helps extend the service life of the tire expander.

[0027] like Figure 5 As shown, a lubrication protrusion 3 is fixed to the side wall of the movable block 14, and the lubrication protrusion 3 is sized to correspond to the first U-shaped claw 15; a lubrication protrusion 3 is provided on the top of the limiting rod 11, and the lubrication protrusion 3 is sized to correspond to the second U-shaped claw 16; during operation, the operator can apply lubricant to the inside of the lubrication protrusion 3. Because the side wall of the movable block 14 is easily accessible, the contact area between the first U-shaped claw 15, the second U-shaped claw 16 and the movable block 14 and the limiting rod 11 is increased, and the lubricant will stay more easily; through the above structure, multiple lubrication protrusions 3 are provided, increasing the contact area between the first U-shaped claw 15, the second U-shaped claw 16 and their connected components, providing a larger area for lubricant application, which is beneficial to maintaining a longer lubrication effect and extending the service life of the tire expander.

[0028] like Figures 1 to 4As shown, a foot support 4 is fixedly connected between the control handle 1 and the fixed block 12, and the two foot supports 4 are arranged correspondingly; a reinforcing block 41 is fixedly connected between the control handle 1 and the fixed block 12, and multiple reinforcing blocks 41 are arranged correspondingly; when the tire expander is working, the two foot supports 4 fixed between the control handle 1 and the fixed block 12 can provide support for the tire expander, thereby allowing the main body of the tire expander to lift off the ground. At this time, the operator can more conveniently adjust the first U-shaped claw 15 and the second U-shaped claw 16. The multiple reinforcing blocks 41 can enhance the structural stability of the main body of the tire expander. Through the above structure, the two foot supports 4 are set to lift the main body of the tire expander off the ground, thereby avoiding the impact of ground friction on the normal operation of the tire expander, enhancing the stability and practicality of the tire expander. At the same time, the reinforcing blocks 41 enhance the structural strength of the main body of the tire expander, which helps to reduce its deformation under stress.

[0029] like Figure 3 As shown, an inner support block 5 is fixedly connected to the inner wall of the pressing block 17, and multiple inner support blocks 5 are arranged in a corresponding manner. During operation, the multiple inner support blocks 5 fixed to the inner wall of the pressing block 17 can enhance its structural stability by supporting it inside the pressing block 17. Through the above structure, multiple inner support blocks 5 are set inside the pressing block 17 to enhance its structural stability, which helps to avoid large deformation of the pressing block 17 during the process of being stressed, enhances the structural strength of the tire expander, and helps to extend the service life of the tire expander.

[0030] like Figure 2 and Figure 3 As shown, a spring platform 6 is fixedly connected to the side wall of the control handle 1, and the two spring platforms 6 are respectively positioned corresponding to the return springs 110. During operation, the two spring platforms 6 fixed to the side wall of the control handle 1 increase the surface area of ​​the corresponding part of the control handle 1. At the same time, the two spring platforms 6 are fixedly connected to the two return springs 110. Through the above structure, the spring platforms 6 increase the surface area of ​​the corresponding part of the control handle 1, providing sufficient position for fixing the return springs 110, which helps to prevent the return springs 110 from shifting during the force process and improves the stability of the tire expander.

[0031] like Figure 1 and Figure 5As shown, an auxiliary handle 7 is fixedly connected to the end of the sliding rod 13, and the cross-sections of the sliding rod 13 and the auxiliary handle 7 are regular hexagons. During operation, after the tire expander finishes expanding the tire, the operator can use the auxiliary handle 7 to reset the sliding rod 13. Since the cross-section of the sliding rod 13 is regular hexagonal, and the dimensions of the push block 18 and the stop block 19, which are slidably connected to the sliding rod 13, are slightly larger than the sliding rod 13, whenever the push block 18 and the stop block 19 tilt relative to the sliding rod 13, the push block 18 and the stop block 19 can make closer contact with the side wall of the sliding rod 13 due to their regular hexagonal cross-sections. Through the above structure, the auxiliary handle 7 makes it convenient for the operator to reset the sliding rod 13. At the same time, the use of a regular hexagonal cross-section for the sliding rod 13 increases the contact area between the push block 18, the stop block 19 and the sliding rod 13, which helps to enhance the stability of the tire expander.

[0032] During operation, the operator can first insert the first U-shaped claw 15 and the second U-shaped claw 16 into both sides of the tire. The push block 18 and the stop block 19 are respectively positioned corresponding to the sliding rod 13, and two return springs 110 are respectively positioned corresponding to the push block 18 and the stop block 19. The operator can adjust the position of the sliding rod 13 by repeatedly pressing the pressing block 17, thereby adjusting the distance between the first U-shaped claw 15 and the second U-shaped claw 16, ultimately prying open the tire. During this process, whenever the pressing block 17 is pressed, the push block 18, limited by the first limiting block 180, contacts the side wall of the sliding rod 13 at an inclined angle. At this time, the sliding rod 13 will move under the friction of the push block 18, and the movable block 14 will move away from the control handle 1. In the middle, the movable block 14 and the limiting rod 11 are slidably connected. After the pressing block 17 is pressed, the corresponding return spring 110 can make the push block 18 return to its original position. Since the stop block 19 is restricted by the second limiting block 190 and the stop block 19 contacts the side wall of the sliding rod 13, the position of the sliding rod 13 will be locked after movement. The fixing block 12 serves to connect the ends of the two limiting rods 11. The operator can adjust the angle of the first U-shaped claw 15 and the second U-shaped claw 16 with the help of the first auxiliary frame 2 and the second auxiliary frame 21, so as to more conveniently insert the first U-shaped claw 15 and the second U-shaped claw 16 into the tire. At the same time, the use of stainless steel material can enhance the control handle 1, the limiting rod 11, the fixing block 12, the sliding rod 13, the movable block 14, and the first U-shaped claw 16. The structural strength of the claw 15, second U-shaped claw 16, pressing block 17, pushing block 18, first limiting block 180, stop block 19, second limiting block 190, first auxiliary frame 2, and second auxiliary frame 21 allows the operator to apply lubricant to the inside of the lubricating protrusion 3. Because the sidewall of the movable block 14 is easily accessible, and the top of the limiting rod 11 is respectively equipped with lubricating protrusions 3, the contact area between the first U-shaped claw 15, second U-shaped claw 16 and the movable block 14 and limiting rod 11 is increased, making it easier for the lubricant to remain. When the tire expander is working, the two foot supports 4 fixed between the control handle 1 and the fixed block 12 provide support for the tire expander, allowing the main body of the tire expander to lift off the ground. At this time, the operator can more conveniently adjust the first U-shaped claw 15 and the second U-shaped claw 16. The claw 16, in which multiple reinforcing blocks 41 enhance the stability of the main structure of the tire expander, and multiple inner support blocks 5 fixed to the inner wall of the pressing block 17 enhance its structural stability by supporting it inside the pressing block 17. Two spring platforms 6 fixed to the side wall of the control handle 1 increase the surface area of ​​corresponding parts of the control handle 1. Simultaneously, the two spring platforms 6 are fixedly connected to two return springs 110. After the tire expander has finished expanding the tire, the operator can use the auxiliary handle 7 to reset the sliding rod 13. Since the cross-section of the sliding rod 13 is a regular hexagon, and the dimensions of the push block 18 and the stop block 19, which are slidably connected to the sliding rod 13, are slightly larger than the sliding rod 13, whenever the push block 18 and the stop block 19 tilt relative to the sliding rod 13...Push block 18 and stop block 19 can make closer contact with the side wall of sliding rod 13 by means of their regular hexagonal cross-sections.

[0033] 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A portable tire expander comprising a control handle (1), characterized in that: Limiting rods (11) are fixedly connected to the side wall of the control handle (1), and the two limiting rods (11) are arranged correspondingly; a fixing block (12) is fixedly connected to the end of the two limiting rods (11) away from the control handle (1); a sliding rod (13) is slidably connected to the side wall of the control handle (1); a movable block (14) is fixedly connected to the end of the sliding rod (13), and the movable block (14) is slidably connected to the limiting rod (11); a first U-shaped claw (15) is rotatably connected to the top of the movable block (14); the... A second U-shaped claw (16) is rotatably connected to the top of the limiting rod (11); a pressing block (17) is rotatably connected to the side wall of the control handle (1), and a push block (18) is rotatably connected to the end of the pressing block (17); a first limiting block (180) is fixedly connected inside the push block (18); a stop block (19) is rotatably connected to the side wall of the control handle (1), and a second limiting block (190) is fixedly connected to the side wall of the control handle (1); a return spring (110) is fixedly connected to the side wall of the control handle (1).

2. A portable tire expander as defined in claim 1, wherein: A first auxiliary frame (2) is fixedly connected to the side wall of the first U-shaped claw (15); a second auxiliary frame (21) is fixedly connected to the side wall of the second U-shaped claw (16); the control handle (1), limit rod (11), fixing block (12), sliding rod (13), movable block (14), first U-shaped claw (15), second U-shaped claw (16), pressing block (17), pushing block (18), first limit block (180), stop block (19), second limit block (190), first auxiliary frame (2), and second auxiliary frame (21) are made of stainless steel.

3. A portable tire expander as defined in claim 2, wherein: A lubrication protrusion (3) is fixedly connected to the side wall of the movable block (14), and the lubrication protrusion (3) is sized to correspond to the first U-shaped claw (15); a lubrication protrusion (3) is provided on the top of the limiting rod (11), and the lubrication protrusion (3) is sized to correspond to the second U-shaped claw (16).

4. A portable tire expander as defined in claim 3, wherein: A foot support (4) is fixed between the control handle (1) and the fixing block (12), and the two foot supports (4) are arranged in a corresponding manner; a reinforcing block (41) is fixed between the control handle (1) and the fixing block (12), and multiple reinforcing blocks (41) are arranged in a corresponding manner.

5. A portable tire expander as defined in claim 4 wherein: An inner support block (5) is fixedly connected to the inner side wall of the pressing block (17), and multiple inner support blocks (5) are arranged in a corresponding manner.

6. A portable tire expander according to claim 5, characterized in that: A spring platform (6) is fixedly connected to the side wall of the control handle (1), and the two spring platforms (6) are respectively set to the positions of the reset spring (110).

7. A portable tire expander according to claim 6, characterized in that: An auxiliary handle (7) is fixedly connected to the end of the sliding rod (13), and the cross-sections of the sliding rod (13) and the auxiliary handle (7) are regular hexagons.

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