Tool for repairing tire from outside to inside

Abstract

The utility model relates to the technical field of tire repair, in particular to a tool for repairing a tire from outside to inside, which comprises a polishing device provided with a shaft lever and a polishing arm connected to one side of the top end of the shaft lever, and the bottom of the polishing arm is provided with a polishing surface; a vertical rubber rod is arranged in the center of the bottom of the umbrella-shaped patch, a pipeline is coaxially arranged in the rubber rod, a plurality of radial veins are arranged on the top of the umbrella-shaped patch, the veins are communicated with the top end of the pipeline, and a plurality of through holes communicated with the veins are densely distributed in the bottom of the umbrella-shaped patch. When the tool is used for repairing the tire, the tire does not need to be taken down from the hub, so that the work of dismounting, pulling and mounting the tire is omitted, and the tire repairing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire repair, in particular to a tire repair tool from the outside to the inside of a tire. Background Art

[0002] At present, vacuum tires are widely used, and can be used in cars, motorcycles or electric vehicles. The more common methods for repairing vacuum tires are external repair and fire repair. The external repair is to force the rubber strip into the tire mouth that needs to be repaired, which will cause secondary damage to the tire; and the fire repair requires disassembling the tire for repair, which is time-consuming, so it is necessary to improve it. Utility Model Content

[0003] The utility model provides a tire repairing tool from the outside to the inside of the tire. When the tire is repaired by the tool, the tire does not need to be removed from the wheel hub, thus omitting the work of disassembling and installing the tire, thereby improving the tire repairing efficiency.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tire repair tool from the outside to the inside of the tire, comprising: a grinding device, the grinding device is provided with a shaft rod, and a grinding arm connected to one side of the top end of the shaft rod, and the bottom of the grinding arm is provided with a grinding surface; an umbrella-shaped patch, a vertical rubber rod is provided in the center of the bottom of the umbrella-shaped patch, a pipe is coaxially provided in the rubber rod, and a plurality of radial veins are provided at the top of the umbrella-shaped patch, each of the veins protrudes from the top surface of the umbrella-shaped patch and forms a rib structure, and each of the veins is respectively connected to the top of the pipe, and the bottom of the umbrella-shaped patch is densely covered with a plurality of through holes connected to the veins.

[0005] Preferably, the free end of the polishing arm is a pointed structure.

[0006] Preferably, the grinding arm is arranged in an arc shape and is adapted to the curvature of the inner wall surface of the tire.

[0007] Preferably, the polishing arm is provided with an annular groove and a swivel fitted in the annular groove; a limiting groove is provided at the bottom of the polishing arm along the length direction, a polishing shoe connected to the swivel is provided in the limiting groove, the arc length of the polishing shoe is smaller than the arc length of the limiting groove, and a gap is left between the inner wall of the polishing shoe and the outer wall of the limiting groove to ensure free reciprocating motion; the polishing surface is arranged at the bottom of the polishing shoe.

[0008] Preferably, the bottom of the shaft rod has a polygonal cross-sectional profile, and a groove is provided on the outer wall of the bottom of the shaft rod along the length direction.

[0009] Preferably, it further comprises a protection tube, wherein the protection tube is sleeved on the outside of the rubber rod, and the umbrella-shaped patch is spirally attached between the outer wall of the rubber rod and the inner wall of the protection tube.

[0010] The beneficial effect of the utility model is that when repairing a tire, the sharp foreign matter in the puncture is taken out, and then the free end of the grinding arm is inserted into the tire along the puncture, and the rubber elasticity of the tire is used to adjust the angle of the shaft rod so that the shaft rod is perpendicular to the outer wall surface of the tire. At this time, an electric tool is connected to the outer end of the shaft rod and rotated at high speed, and the rotating grinding arm uses the grinding surface to grind the range swept by the inner wall of the tire. After the grinding is completed, the grinding device is exited, and the umbrella-shaped patch is inserted into the tire along the hole through the rubber rod. In this process, the umbrella-shaped patch with flexibility and elasticity naturally fits on the outside of the rubber rod and forms a rod-shaped structure to avoid damage to the umbrella-shaped patch. After the umbrella-shaped patch is sent into the tire, it is connected to the outer end of the rubber rod through the inflation device, and air is supplied to it. After the compressed air enters the vein along the pipeline, it is discharged from the through hole, so that the umbrella-shaped patch is restored to a natural flat state. At this time, the rubber rod is pulled to make the umbrella-shaped patch fit with the grinding area of ​​the inner wall of the tire. The rubber rod is connected to the injection rubber cylinder, and glue is injected into it. The glue overflows through the through hole and infiltrates the bottom of the umbrella-shaped patch and the fitting part of the grinding area. At this time, the rubber rod is rotated left and right to make the umbrella-shaped patch fit and rub against the grinding area of ​​the inner wall of the tire, and the glue is evenly applied. Then the tire is inflated, and the fitting force of the umbrella-shaped patch is improved under the action of the internal pressure of the tire. Finally, the rubber rod is cut off to expose the part of the outer wall of the tire. At this point, the tire repair work is completed. When using this tool to repair a tire, there is no need to remove the tire from the wheel hub, so the work of disassembling and installing the tire, removing the tire, etc. is omitted, thereby improving the efficiency of tire repair. The grinding arm is set in an arc shape and adapts to the curvature of the inner wall surface of the tire. With the help of the elastic energy of the tire itself, the grinding arm can effectively contact and grind the inner wall of the tire at all angles. The grinding surface is movably matched on the grinding arm and rotates freely within a fixed angle range. Therefore, during the grinding process, by changing the rotation direction of the shaft rod, the grinding surface on the grinding tile can contact the inner wall of the tire at different positions, which is not only conducive to chip removal, but also makes the burrs polished on the inner wall of the tire more uniform, which is conducive to bonding with glue. The function of the protective tube is to store the umbrella-shaped patch, so that it fits tightly to the outside of the rubber rod, so as to facilitate entering the inside of the tire through the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 This is a schematic diagram of the structure of the grinding device of the utility model;

[0013] Figure 2 This is a cross-sectional view of the umbrella-shaped patch structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the grinding arm of the utility model;

[0015] Figure 4 This is a schematic diagram of the working state of the grinding device of the utility model;

[0016] Figure 5 This is a schematic diagram of the combination of the protective cover and the umbrella-shaped patch of the utility model;

[0017] Figure 6 This is a schematic diagram of feeding the umbrella-shaped patch of the utility model;

[0018] Figure 7 It is a schematic diagram of the bonding state of the umbrella-shaped patch of the utility model.

[0019] In the figure: 1. shaft; 2. grinding arm; 3. grinding surface; 4. umbrella-shaped patch; 5. rubber rod; 6. pipeline; 7. veins; 8. through hole; 9. swivel; 10. limit groove; 11. grinding tile; 12. protective tube. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, a tire repair tool from the outside to the inside of the tire comprises: a grinding device, the grinding device is provided with a shaft 1, and a grinding arm 2 connected to one side of the top end of the shaft 1, and the bottom of the grinding arm 2 is provided with a grinding surface 3; an umbrella-shaped patch 4, a vertical rubber rod 5 is provided at the center of the bottom of the umbrella-shaped patch 4, a pipe 6 is coaxially provided in the rubber rod 5, and a plurality of radial veins 7 are provided at the top of the umbrella-shaped patch, each of the veins 7 protrudes from the top surface of the umbrella-shaped patch 4 and forms a rib structure, and each of the veins 7 is respectively connected to the top of the pipe 6, and the bottom of the umbrella-shaped patch 4 is densely covered with a plurality of through holes 8 connected to the veins 7.

[0022] Through the above arrangement, when repairing a tire, the sharp foreign objects in the puncture are removed, and then the free end of the grinding arm 2 is inserted into the tire along the puncture, and the rubber elasticity of the tire is used to adjust the angle of the shaft 1 so that the shaft 1 is perpendicular to the outer wall surface of the tire. At this time, an electric tool is connected to the outer end of the shaft 1 and rotated at high speed. The rotating grinding arm 2 uses the grinding surface 3 to grind the area swept by the inner wall of the tire, wherein the grinding surface 3 is similar to the surface of a file and is used to scratch new burrs on the surface of the rubber material. After the grinding is completed, the grinding device is exited, and the umbrella-shaped patch 4 is inserted into the tire along the hole through the rubber rod 5. In this process, the flexible and elastic umbrella-shaped patch 4 naturally fits on the outside of the rubber rod 5 and forms a rod-shaped structure to prevent the umbrella-shaped patch 4 from being damaged. After the umbrella-shaped patch 4 is sent into the tire, it is connected to the outer end of the rubber rod 5 through the inflation device, and air is supplied to it. After the compressed air enters the vein 7 along the pipeline 6, it is discharged from the through hole 8, so that the umbrella-shaped patch 4 is restored to a natural flat state. At this time, the rubber rod 5 is pulled to make the umbrella-shaped patch 4 return to its natural flat state. The umbrella-shaped patch 4 is fitted with the polished area of ​​the inner wall of the tire, the rubber rod 5 is connected to the injection rubber cylinder, and glue is injected into the inside thereof, the glue overflows through the through hole 8 and infiltrates the bottom of the umbrella-shaped patch 4 and the fitting part of the polished area, at this time, the rubber rod 5 is rotated left and right to make the umbrella-shaped patch 4 fit and rub against the polished area of ​​the inner wall of the tire, and the glue is evenly applied, and then the tire is inflated, and the fitting force of the umbrella-shaped patch 4 is increased under the action of the internal pressure of the tire, and finally the rubber rod 5 is cut off to expose the part of the outer wall of the tire, and the tire repair work is completed. When using the tool to repair the tire, there is no need to remove the tire from the wheel hub, so the work of disassembling and assembling the tire, pulling out the tire and installing the tire is omitted, thereby improving the efficiency of tire repair.

[0023] The free end of the grinding arm 2 is a pointed structure, through which the grinding arm 2 can easily penetrate into the hole of the tire and even expand and grind the hole.

[0024] In addition, since the inner wall of the tire is a curved structure, the grinding arm 2 is set in an arc shape and adapted to the curvature of the inner wall surface of the tire. Through this setting, during the grinding process, with the help of the tire's own elastic energy, the grinding arm 2 can effectively contact and grind with the inner wall of the tire at all angles.

[0025] The polishing arm 2 is provided with an annular groove and a swivel ring 9 fitted in the annular groove; a limiting groove 10 is provided at the bottom of the polishing arm 2 along the length direction, and a polishing tile 11 connected to the swivel ring 9 is provided in the limiting groove 10, the arc length of the polishing tile 11 is smaller than the arc length of the limiting groove 10, and a gap is left between the inner wall of the polishing tile 11 and the outer wall of the limiting groove 10 to meet the requirement of free reciprocating motion; the polishing surface 3 is arranged at the bottom of the polishing tile 11.

[0026] Through this arrangement, the grinding surface 3 is movably fitted on the grinding arm 2 and can rotate freely within a fixed angle range. Therefore, during the grinding process, by changing the rotation direction of the shaft 1, the grinding surface 3 on the grinding shoe 11 can contact the inner wall of the tire at different positions, which is not only conducive to chip removal, but also can make the burrs polished out of the inner wall of the tire more uniform, which is conducive to bonding with glue.

[0027] In order to enable the shaft 1 to better connect with the power tool and effectively transmit torque, the bottom of the shaft 1 has a polygonal cross-sectional profile, and the outer wall at the bottom of the shaft 1 is provided with a slot along the length direction, or is connected to the output shaft of a dedicated electric or pneumatic device through the slot.

[0028] It also includes a protection tube 12 , which is sleeved on the outside of the rubber rod 5 , and the umbrella-shaped patch 4 is spirally attached between the outer wall of the rubber rod 5 and the inner wall of the protection tube 12 .

[0029] In this arrangement, the protective tube 12 serves to contain the umbrella-shaped patch 4 and to make it fit closely to the outside of the rubber rod 5, thereby facilitating its entry into the tire through the hole.

[0030] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A tire repair tool from the outside to the inside of the tire, characterized in that ,include: A grinding device, the grinding device comprising a shaft (1) and a grinding arm (2) connected to one side of the top end of the shaft (1), the bottom of the grinding arm (2) being provided with a grinding surface (3); An umbrella-shaped patch (4), wherein a vertical rubber rod (5) is provided at the center of the bottom of the umbrella-shaped patch (4), a pipe (6) is coaxially provided inside the rubber rod (5), and a plurality of radial veins (7) are provided at the top of the umbrella-shaped patch, each of the veins (7) protrudes from the top surface of the umbrella-shaped patch (4) and forms a rib structure, and each of the veins (7) is respectively connected to the top of the pipe (6), and the bottom of the umbrella-shaped patch (4) is densely covered with a plurality of through holes (8) connected to the veins (7).

2. A tire repair tool from outside to inside according to claim 1, characterized in that: The free end of the polishing arm (2) is a pointed end structure.

3. A tire repair tool from outside to inside according to claim 1, characterized in that: The grinding arm (2) is arranged in an arc shape and is adapted to the curvature of the inner wall surface of the tire.

4. A tire repair tool from outside to inside according to claim 1, characterized in that: The grinding arm (2) is provided with an annular groove and a rotating ring (9) fitted in the annular groove; a limiting groove (10) is provided at the bottom of the grinding arm (2) along the length direction; a grinding tile (11) connected to the rotating ring (9) is provided in the limiting groove (10); the arc length of the grinding tile (11) is smaller than the arc length of the limiting groove (10), and a gap is left between the inner wall of the grinding tile (11) and the outer wall of the limiting groove (10) to meet the requirement of free reciprocating motion; the grinding surface (3) is arranged at the bottom of the grinding tile (11).

5. The tire repair tool from outside to inside according to claim 1, characterized in that: The bottom of the shaft rod (1) has a polygonal cross-sectional profile, and a slot is provided on the outer wall of the bottom of the shaft rod (1) along the length direction.

6. A tire repair tool from outside to inside according to claim 1, characterized in that: It also comprises a protective tube (12), wherein the protective tube (12) is sleeved on the outside of the rubber rod (5), and the umbrella-shaped patch (4) is spirally attached between the outer wall of the rubber rod (5) and the inner wall of the protective tube (12).

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