Tire clamping device

Abstract

The utility model discloses a tire clamping device which comprises a cross rod, a tooth groove is formed in the top of the cross rod, a sliding sleeve is connected to the cross rod in a sliding and sleeved mode, an adjusting mechanism is arranged on the sliding sleeve, a first stand column is fixedly connected to the bottom of the sliding sleeve, a pressing plate is fixedly connected to the bottom end of the first stand column, and a second stand column is fixedly connected to the bottom of the cross rod. The bottom of one side of the second stand column is fixedly connected with a baffle, one side of the first stand column and one side of the second stand column are each provided with a primer layer, one side of each primer layer is provided with a corrosion-resistant layer, the adjusting mechanism comprises a limiting clamping jaw and a gear, and the limiting clamping jaw and the gear are rotationally connected between the inner walls of the two sides of the sliding sleeve through a rotating shaft. And the limiting clamping jaw is meshed with the gear. According to the tire expander, the first stand column and the second stand column are inserted into the tire, and the pressing plate and the baffle are clamped in the tire, so that the tire expander is prevented from being separated, and the tire expanding operation on the tire is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of tire expander technology, and in particular to a tire clamp. Background Technology

[0002] During car repair, various repair tools are required. When repairing car tires, if it is necessary to operate inside the tire, a tire expander is needed to widen the tire sidewall to facilitate the operation due to the narrow space inside the tire.

[0003] Currently, existing tire expanders have poor tire stability during use, making them prone to slippage. Furthermore, they easily become contaminated with oil and rust during cleaning, thus affecting their lifespan. Utility Model Content

[0004] The purpose of this invention is to solve the problems of existing tire expanders, which have poor tire stability during use, are prone to slippage, and are easily contaminated with oil and rust during cleaning, thus affecting their service life. Therefore, a tire clamp is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tire clamp includes a crossbar with a toothed groove at the top. A sliding sleeve is slidably fitted onto the crossbar, and an adjustment mechanism is provided on the sliding sleeve. A first column is fixedly connected to the bottom of the sliding sleeve, and a pressure plate is fixedly connected to the bottom end of the first column. A second column is fixedly connected to the bottom of the crossbar, and a baffle is fixedly connected to the bottom of one side of the second column. A primer layer is provided on one side of both the first and second columns, and a corrosion-resistant layer is provided on one side of the primer layer.

[0007] Furthermore, the adjustment mechanism includes a limiting claw and a gear, which are rotatably connected between the inner walls of the two sides of the sliding sleeve via a rotating shaft, and the limiting claw meshes with the gear.

[0008] Furthermore, a rotating frame is rotatably sleeved between the two ends of the rotating shaft of the gear, and a pressing pawl is rotatably connected between the inner walls of the two sides of the rotating frame through the rotating shaft, and the pressing pawl meshes with the gear.

[0009] Furthermore, both ends of the rotating shafts of the limiting claw and the pressing claw are fitted with torsion springs.

[0010] Furthermore, a handle is fixedly connected to one end of the crossbar, and a rubber sleeve is fitted onto the outer wall of the handle.

[0011] Furthermore, a pressing handle is fixedly connected to one end of the rotating frame, and the outer wall of the pressing handle is provided with an anti-slip groove.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. By inserting the first and second pillars into the tire and securing the pressure plate and baffle inside the tire, the tire expander is prevented from detaching, thus ensuring the tire expanding operation.

[0014] 2. The primer layer enhances the adhesion and rust prevention of the coating to the substrate, and the corrosion-resistant layer further enhances the wear resistance and corrosion resistance of the coating, thereby preventing the tire expander from rusting.

[0015] 3. Press down the handle to rotate the rotating frame downwards, which in turn moves the pressure pawl downwards. Then, the gear meshes with the pressure pawl, causing the gear to rotate. The gear meshes with the tooth groove, causing the sliding sleeve to move, which moves the first column away from the second column, thus spreading the tire. At the same time, the torsion spring stops the pressure pawl, which is then positioned for subsequent maintenance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a tire clamp proposed in this utility model;

[0017] Figure 2 This is a rear view schematic diagram of a tire clamp proposed in this utility model;

[0018] Figure 3 This is a partially enlarged structural diagram of a tire clamp proposed in this utility model;

[0019] Figure 4 This is a partial cross-sectional view of a tire clamp proposed in this utility model.

[0020] In the diagram: 1. Crossbar; 2. Tooth groove; 3. Sliding sleeve; 4. First column; 5. Pressure plate; 6. Second column; 7. Baffle; 8. Primer layer; 9. Corrosion-resistant layer; 10. Gear; 11. Pressing claw; 12. Limiting claw; 13. Rotating frame; 14. Pressing handle; 15. Grip. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4A tire expander includes a crossbar 1 with a toothed groove 2 at its top. A sliding sleeve 3 is slidably fitted onto the crossbar 1, and an adjustment mechanism is provided on the sliding sleeve 3. A first column 4 is welded to the bottom of the sliding sleeve 3, and a pressure plate 5 is welded to the bottom end of the first column 4. A second column 6 is welded to the bottom of the crossbar 1, and a baffle 7 is welded to the bottom of one side of the second column 6. The pressure plate 5 and the baffle 7 are clamped inside the tire to prevent the tire expander from detaching. A primer layer 8 is provided on one side of both the first column 4 and the second column 6. The primer layer 8 enhances the adhesion and rust prevention performance of the coating to the substrate, and can also fill surface defects and improve the smoothness of the coating. A corrosion-resistant layer 9 is provided on one side of the primer layer 8. The corrosion-resistant layer 9 enhances the wear resistance and corrosion resistance of the coating, and can also increase the thickness of the coating and improve the sealing performance of the coating.

[0023] The adjusting mechanism includes a limiting pawl 12 and a gear 10. The limiting pawl 12 and the gear 10 are rotatably connected between the inner walls of the two sides of the sliding sleeve 3 via a rotating shaft. The limiting pawl 12 meshes with the gear 10. A rotating frame 13 is rotatably sleeved between the two ends of the rotating shaft of the gear 10. A pressing pawl 11 is rotatably connected between the inner walls of the two sides of the rotating frame 13 via a rotating shaft. The pressing pawl 11 meshes with the gear 10. A pressing handle 14 is welded to one end of the rotating frame 13. Pressing the pressing handle 14 downwards causes the rotating frame 13 to rotate downwards, thereby causing the pressing pawl 11 to move downwards. Then, under the action of the gear 10 meshing with the pressing pawl 11, the gear 10 moves downwards. The moving gear 10 rotates, and then, under the action of the gear 10 meshing with the tooth groove 2, it drives the sliding sleeve 3 to move, thereby driving the first column 4 away from the second column 6, and thus spreading the tire. Both ends of the rotating shaft of the limiting claw 12 and the pressing claw 11 are fitted with torsion springs. Under the action of the torsion springs, the limiting claw 12 engages with the gear 10, thereby preventing the gear 10 from reversing, so as to ensure the tire is spread. One end of the crossbar 1 is welded with a handle 15, and the outer wall of the handle 15 is fitted with a rubber sleeve, so as to facilitate the taking of the tire spreader. The outer wall of the pressing handle 14 is provided with an anti-slip groove, thereby preventing the hand from falling off the pressing handle 14.

[0024] The working principle of this embodiment is as follows: In use, firstly, the limiting claw 12 is disengaged from the gear 10. Then, the downward pressure handle 14 is pulled to move the sliding sleeve 3 and the first column 4, thereby bringing the first column 4 closer to the second column 6 so that the first column 4 and the second column 6 can be inserted into the tire. Afterward, under the action of the torsion spring, the limiting claw 12 is reset, thereby engaging the limiting claw 12 with the gear 10. Then, the first column 4 and the second column 6 are inserted into the tire, and the pressure plate 5 and the baffle 7 are secured inside the tire, thereby preventing the tire expander from being used. The wheel rotates downwards after being disengaged. Then, pressing down on the handle 14 causes the rotating frame 13 to rotate downwards, thereby causing the pressing claw 11 to move downwards. Then, under the action of the gear 10 meshing with the pressing claw 11, the gear 10 rotates. Then, under the action of the gear 10 meshing with the tooth groove 2, the sliding sleeve 3 moves, thereby causing the first column 4 to move away from the second column 6, thus spreading the tire open. At the same time, under the action of the torsion spring, the limiting claw 12 engages with the gear 10, thereby preventing the gear 10 from reversing, so as to ensure the tire is spread open.

[0025] Then, the primer layer 8 enhances the adhesion and rust prevention of the coating to the substrate, and the corrosion-resistant layer 9 enhances the wear resistance and corrosion resistance of the coating, thereby preventing the tire expander from rusting.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tire clamp, comprising a crossbar (1), characterized in that, The top of the crossbar (1) is provided with a toothed groove (2), and a sliding sleeve (3) is slidably sleeved on the crossbar (1). An adjustment mechanism is provided on the sliding sleeve (3). A first column (4) is fixedly connected to the bottom of the sliding sleeve (3). A pressure plate (5) is fixedly connected to the bottom of the first column (4). A second column (6) is fixedly connected to the bottom of the crossbar (1). A baffle (7) is fixedly connected to the bottom of one side of the second column (6). A primer layer (8) is provided on one side of both the first column (4) and the second column (6). A corrosion-resistant layer (9) is provided on one side of the primer layer (8).

2. The tire clamp according to claim 1, characterized in that, The adjustment mechanism includes a limiting claw (12) and a gear (10). The limiting claw (12) and the gear (10) are rotatably connected between the inner walls of the two sides of the sliding sleeve (3) via a rotating shaft. The limiting claw (12) meshes with the gear (10).

3. A tire clamp according to claim 2, characterized in that, A rotating frame (13) is rotatably sleeved between the two ends of the rotating shaft of the gear (10). A pressing claw (11) is rotatably connected between the inner walls of the two sides of the rotating frame (13) through the rotating shaft. The pressing claw (11) meshes with the gear (10).

4. A tire clamp according to claim 3, characterized in that, Both ends of the rotating shafts of the limiting claw (12) and the pressing claw (11) are fitted with torsion springs.

5. A tire clamp according to claim 1, characterized in that, One end of the crossbar (1) is fixedly connected to a handle (15), and a rubber sleeve is fitted onto the outer wall of the handle (15).

6. A tire clamp according to claim 3, characterized in that, One end of the rotating frame (13) is fixedly connected to a pressing handle (14), and the outer wall of the pressing handle (14) is provided with an anti-slip groove.

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