Flat air bag for repairing tire

Abstract

The utility model relates to a flat air bag for repairing a tire, which comprises an outer air bag and a pressure regulating air bag, the pressure regulating air bag is arranged in the outer air bag, a first air tap is arranged on the outer air bag, a second air tap is arranged on the pressure regulating air bag, and the second air tap penetrates through the outer air bag. The first air tap and the second air tap are detachably provided with a pressure measuring mechanism used for air pressure monitoring. A pressure adjusting air bag is installed in the outer air bag, the tire is supported through work expansion of the outer air bag and the pressure adjusting air bag, and during vulcanization heating, the air pressure change in the pressure adjusting air bag is sensed through the air pressure meter, so that automatic deflation treatment is conducted on the pressure adjusting air bag, and automatic adjustment of the internal pressure intensity and the expansion volume of the outer air bag is achieved. And the tire is prevented from being extruded during heating vulcanization or the danger caused by overlarge expansion of the outer air bag is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tire repair equipment processing, in particular to a flat airbag for repairing tires. Background Art

[0002] A tire is an annular elastic rubber product that is mounted on various vehicles or machines and rolls on the ground. During the operation of the tire, due to many external force factors, the tire may be damaged. In order to improve the utilization rate of the tire, the tire is usually repaired so that it can continue to be used. When repairing a tire, it is usually necessary to use an airbag to support the wound of the tire from the inside of the tire, so as to facilitate effective repair of the wound.

[0003] During heat vulcanization, the tire transfers heat, causing the air inside the airbag to expand thermally, which in turn causes the pressure inside the airbag to increase, and the volume of the airbag to increase. As a result, during the heat vulcanization process, the extrusion force on the tire gradually increases, and there is a danger that the airbag expands too much. Summary of the Utility Model

[0004] The problem solved by the utility model is to provide a flat airbag for repairing tires, which solves the technical problems that during heat vulcanization, the tire transfers heat, causing the air inside the airbag to expand thermally, which in turn causes the pressure inside the airbag to increase, and the volume of the airbag to increase. As a result, during the heat vulcanization process, the extrusion force on the tire gradually increases, and there is a danger that the airbag expands too much.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A flat airbag for repairing tires, comprising an outer airbag and a pressure-regulating airbag. The pressure-regulating airbag is installed inside the outer airbag. A first air nozzle is installed on the outer airbag, and a second air nozzle is installed on the pressure-regulating airbag, and the second air nozzle penetrates through the outer airbag. A pressure measurement mechanism for monitoring air pressure is detachably installed on the first air nozzle and the second air nozzle.

[0007] Preferably, the outer airbag is of a flat structure.

[0008] Preferably, threads are provided on the outer sides of both the first air nozzle and the second air nozzle.

[0009] Preferably, the pressure measurement mechanism includes a nozzle sleeve threadedly connected to the first air nozzle and the second air nozzle. The nozzle sleeve is connected to one end of a support tube through a connecting hose.

[0010] Preferably, the other end of the support tube is provided with a connecting nozzle, and the connecting nozzle is connected to a pressurizing air pump.

[0011] Preferably, a pipe sleeve and a control valve are installed on the support pipe, and a pressure gauge is installed on the pipe sleeve.

[0012] Preferably, a heat insulation film is arranged on the outer side of the outer airbag, and a heat preservation film is arranged on the outer side of the heat insulation film.

[0013] Preferably, the top side of the outer airbag is combined with the support body for internal support of the tire.

[0014] The beneficial effects of the present utility model are as follows: A pressure regulating airbag is installed inside the outer airbag. The outer airbag and the pressure regulating airbag work and expand to support the tire. During vulcanization heating, the pressure gauge senses the change in the air pressure inside the pressure regulating airbag, and then automatically discharges the air from the pressure regulating airbag, realizing the automatic adjustment of the internal pressure and expansion volume of the outer airbag, and avoiding the extrusion of the tire or the excessive expansion of the outer airbag during heating vulcanization, which may pose a danger. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a cross-sectional view of the outer airbag and the pressure regulating airbag of the present utility model;

[0017] Figure 3 is a first cross-sectional view of the outer airbag and the support body of the present utility model;

[0018] Figure 4 is a second cross-sectional view of the outer airbag and the support body of the present utility model;

[0019] Figure 5 is a schematic diagram of the structure of the support body of the present utility model.

[0020] Legend Explanation:

[0021] 1. Outer airbag; 2. Pressure regulating airbag; 3. First air nozzle; 4. Second air nozzle; 5. Pressure measuring mechanism; 6. Air nozzle sleeve; 7. Connecting hose; 8. Support pipe; 9. Connecting nozzle; 10. Pipe sleeve; 11. Pressure gauge; 12. Control valve; 13. Heat insulation film; 14. Heat preservation film; 15. Support body. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0023] Next, specific embodiments are given.

[0024] See also Figures 1 to 5 A flat airbag for repairing a tire comprises an outer airbag 1 and a pressure-regulating airbag 2. After the outer airbag 1 is inflated, the internal air pressure is 0.4 MPa, and the expanded volume is less than 30 L. It does not constitute a pressure vessel. When workers use it, the safety factor is further improved. The outer airbag 1 is a flat structure. A pressure-regulating airbag 2 is installed inside the outer airbag 1. A first air nozzle 3 is installed on the outer airbag 1, and a second air nozzle 4 is installed on the pressure-regulating airbag 2. The second air nozzle 4 penetrates the outer airbag 1. Threads are provided on the outer sides of the first air nozzle 3 and the second air nozzle 4. A pressure measuring mechanism 5 for air pressure monitoring is detachably installed on the first air nozzle 3 and the second air nozzle 4.

[0025] The pressure measuring mechanism 5 includes a nozzle sleeve 6 threadedly connected to the first air nozzle 3 and the second air nozzle 4. The nozzle sleeve 6 is connected to one end of the support tube 8 through a connecting hose 7, which is convenient for disassembling the first air nozzle 3 and the second air nozzle 4 from the nozzle sleeve 6. The other end of the support tube 8 is provided with a connecting nozzle 9, and the connecting nozzle 9 is connected to the pressurized air pump. A pipe sleeve 10 and a control valve 12 are installed on the support tube 8. A pressure gauge 11 is installed on the pipe sleeve 10. The control valve 12 is opened to realize the connection of the support tube 8. At this time, it is convenient to exhaust air or pressurize the external air bag 1 and the pressure-regulating air bag 2 through the operation of the pressurized air pump, and the internal pressure is observed through the pressure gauge 11.

[0026] A heat insulation film 13 is arranged on the outside of the outer airbag 1 , and a heat preservation film 14 is arranged on the outside of the heat insulation film 13 , so as to activate the heat insulation effect and avoid heat transfer to the inside of the outer airbag 1 as much as possible.

[0027] The top side of the outer airbag 1 is combined with the support body 15 to support the inside of the tire.

[0028] Connect the air nozzle sleeve 6 of the pressure measuring mechanism 5 to the second air nozzle 4, and connect the connecting nozzle 9 to the pressurized air pump. At this time, open the control valve 12 to pressurize the air pressure in the pressure-regulating airbag 2 to 0.4 MPa, and then close the control valve 12, remove the pressure measuring mechanism 5 from the second air nozzle 4, and place the outer airbag 1 in the tire at the same time, connect the pressure measuring mechanism 5 to the first air nozzle 3 of the outer airbag 1, and pressurize the air pressure in the outer airbag 1 to 0.4 MPa, and the volume of the outer airbag 1 is less than 30 liters, and then connect the pressure measuring mechanism 5 to the second air nozzle 4 again. When the tire is heated for vulcanization, the air in the outer airbag 1 expands due to heat, causing the pressure to increase and squeeze the pressure-regulating airbag 2. At this time, the control valve 12 opens to discharge the air in the pressure-regulating airbag 2 to ensure that the pressure in the outer airbag 1 decreases.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flat airbag for repairing tires, characterized in that: The invention comprises an outer air bag (1) and a pressure regulating air bag (2), wherein the pressure regulating air bag (2) is installed inside the outer air bag (1), a first air nozzle (3) is installed on the outer air bag (1), a second air nozzle (4) is installed on the pressure regulating air bag (2), and the second air nozzle (4) passes through the outer air bag (1), and a pressure measuring mechanism (5) for air pressure monitoring is detachably installed on the first air nozzle (3) and the second air nozzle (4).

2. A flat airbag for repairing tires according to claim 1, characterized in that: The outer air bag (1) is a flat body structure.

3. A flat airbag for repairing tires according to claim 2, characterized in that: The first gas nozzle (3) and the second gas nozzle (4) are both provided with threads on their outer sides.

4. A flat airbag for repairing tires according to claim 3, characterized in that: The pressure measuring mechanism (5) comprises a gas nozzle sleeve (6) threadedly connected to the first gas nozzle (3) and the second gas nozzle (4); the gas nozzle sleeve (6) is connected to one end of a support tube (8) via a connecting hose (7).

5. A flat airbag for repairing tires according to claim 4, characterized in that: The other end of the support tube (8) is provided with a connecting nozzle (9), and the connecting nozzle (9) is connected to a pressurized air pump.

6. A flat airbag for repairing tires according to claim 5, characterized in that: A pipe sleeve (10) and a control valve (12) are installed on the support pipe (8), and a pressure gauge (11) is installed on the pipe sleeve (10).

7. A flat airbag for repairing tires according to claim 6, characterized in that: A heat insulation film (13) is arranged on the outside of the outer air bag (1), and a heat preservation film (14) is arranged on the outside of the heat insulation film (13).

8. The flat airbag for repairing tires according to claim 7, characterized in that: The top side of the outer airbag (1) is combined with a support body (15) to support the inside of the tire.

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