Explosion-proof closed air bag for coal mine tunnel

Abstract

The utility model relates to the technical field of coal mine disasters, in particular to an anti-explosion closed air bag for a coal mine tunnel, which comprises an inner-layer air bag and an outer-layer explosion-facing bag, a collecting mechanism is arranged on the outer wall of the outer-layer explosion-facing bag and comprises a first bag and a second bag, the outer wall of the first bag is fixedly connected with the outer-layer explosion-facing bag, and the outer wall of the second bag is fixedly connected with the inner-layer air bag. The outer wall of the first bag is fixedly connected with the left zipper, the outer wall of the second bag is fixedly connected with the outer-layer explosion-facing bag, and the outer wall of the second bag is fixedly connected with the right zipper. The zipper is pulled to move on the left zipper and the right zipper, so that the first bag and the second bag are opened and closed, the inflation valve and the deflation valve are controlled to inflate and deflate the inner-layer air bag and the outer-layer explosion-receiving bag in the first bag and the second bag, and the inner-layer air bag and the outer-layer explosion-receiving bag are manually spread. Therefore, the explosion-proof effect of the coal mine tunnel is realized, and the arrangement and the carrying are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine disasters, in particular to an explosion-proof and sealed airbag for a coal mine tunnel. Background Art

[0002] In the production process of coal mining industry, gas and fire are the main natural disasters, and the losses caused to the coal mining industry are immeasurable. In the process of disaster relief for coal mine gas disasters and fires, tunnel sealing is a very common disaster relief technical means. By sealing the tunnel, the air flow and heat exchange inside and outside the sealed point are blocked, and the fire or gas explosion is prevented from spreading to a larger area of ​​the mine, thereby ensuring the smooth progress of disaster relief work and controlling the disaster losses to the minimum.

[0003] For example, a coal mine tunnel explosion-proof and sealed airbag with the authorization announcement number "CN207207784U" has solved the problems of defects in the existing coal mine tunnel explosion-proof and sealed airbags and tunnel sealing technology. The above-mentioned process of simultaneously inflating the inner and outer airbags saves manpower and time, and is conducive to disaster relief personnel to complete the closed construction and evacuation as soon as possible, which is safe and reliable. Considering the existing coal mine tunnel explosion-proof and sealed airbags, the used coal mine tunnel explosion-proof and sealed airbags themselves are not filled with air, and the overall state is scattered, which makes it inconvenient to organize and carry. Utility Model Content

[0004] The utility model aims to solve the problem that the existing explosion-proof and sealed airbags in coal mine tunnels are scattered as a whole, which makes it inconvenient to sort and carry, and proposes an explosion-proof and sealed airbag for coal mine tunnels.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof and sealed airbag for a coal mine tunnel, comprising an inner airbag and an outer explosion-proof bag, the outer wall of the outer explosion-proof bag being provided with a collecting mechanism, the collecting mechanism comprising a first bag and a second bag, the outer wall of the first bag being fixedly connected to the outer explosion-proof bag, the outer wall of the first bag being fixedly connected to a left zipper, the outer wall of the second bag being fixedly connected to the outer explosion-proof bag, the outer wall of the second bag being fixedly connected to a right zipper, the outer wall of the left zipper being slidably connected to a slider, and the lower end of the second bag being fixedly connected to the bottom partition.

[0006] Preferably, the outer wall of the inner airbag is provided with a buffer mechanism, which includes a rubber strip, the end of which is fixedly connected to the inner airbag, the outer wall of the rubber strip is fixedly connected to the buffer membrane, and the outer wall of the buffer membrane is fixedly connected to the silicone block.

[0007] Preferably, the surface of the inner airbag is connected to the inflation catheter, and the surface of the inner airbag is connected to the leakage catheter.

[0008] Preferably, an inflation valve is installed at the end of the inflation conduit, an air release valve is installed at the end of the external air release conduit, the outer wall of the inflation conduit is connected to the external inflation conduit, and a flow valve is installed on the outer wall of the external inflation conduit.

[0009] Preferably, the inner wall of the outer bursting bag is connected to the external inflation conduit.

[0010] Preferably, the inner wall of the outer bursting bag is fixedly connected to the protective sleeve, and the inner wall of the protective sleeve is fixedly connected to the inflation valve and the deflation valve.

[0011] The utility model proposes an explosion-proof and sealed airbag for coal mine tunnels, which has the following beneficial effects: by pulling the slider to move on the left zipper and the right zipper, the first bag and the second bag are opened and closed, the inflation valve and the deflation valve are controlled to inflate and deflate the inner airbag and the outer explosion-proof bag inside the first bag and the second bag, the inner airbag and the outer explosion-proof bag are manually spread out, and folded again and put into the first bag and the second bag, so as to realize explosion-proof and convenient sorting and transportation in coal mine tunnels. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure in the middle front view;

[0014] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure in the middle side view;

[0015] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0016] Figure 5 for Figure 3 The enlarged structural diagram at B in the middle;

[0017] Figure 6 for Figure 2 Enlarged structural diagram at point C in the middle.

[0018] In the figure: 1. inner air bag, 2. outer explosion-proof bag, 3. collecting mechanism, 301. first bag, 302. left zipper, 303. right zipper, 304. slider, 305. bottom compartment, 306. second bag, 4. buffer mechanism, 401. rubber strip, 402. buffer film, 403. silicone block, 5. inflation duct, 6. leakage duct, 7. inflation valve, 8. leakage valve, 9. flow valve, 10. protective cover, 11. external inflation duct. DETAILED DESCRIPTION

[0019] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0020] See also Figure 1-6 The utility model provides a technical solution: an explosion-proof and sealed airbag for coal mine tunnels, comprising an inner airbag 1 and an outer explosion-proof airbag 2, wherein the thickness of the inner airbag 1 is between 10-16 um. The inner layer substrate of the composite film is usually polyethylene (PE), the outer layer explosion-proof bag 2 is made of stretched polypropylene (OPP) and is lined with polyester (PET) inside, and the outer wall of the outer layer explosion-proof bag 2 is provided with a collecting mechanism 3, by pulling the slider 304 to move on the left zipper 302 and the right zipper 303, the first bag 301 and the second bag 306 are opened and closed to collect the inner layer airbag 1 and the outer layer explosion-proof bag 2, the collecting mechanism 3 includes the first bag 301 and the second bag 306, the outer wall of the first bag 301 is fixedly connected to the outer layer explosion-proof bag 2, the outer wall of the first bag 301 is fixedly connected to the left zipper 302, the outer wall of the second bag 306 is fixedly connected to the outer layer explosion-proof bag 2, the outer wall of the second bag 306 is fixedly connected to the right zipper 303, the outer wall of the left zipper 302 is slidably connected to the slider 304, and the lower end of the second bag 306 is fixedly connected to the bottom partition 305;

[0021] Pull the slider 304 to move on the left zipper 302 and the right zipper 303 to open and close the first bag 301 and the second bag 306, control the inflation valve 7 and the deflation valve 8 to inflate and deflate the inner airbag 1 and the outer explosion-proof bag 2 inside the first bag 301 and the second bag 306, manually spread out the inner airbag 1 and the outer explosion-proof bag 2, and fold them again and put them into the first bag 301 and the second bag 306, so as to realize explosion-proof and convenient sorting and transportation in coal mine tunnels.

[0022] See also Figure 1 , Figure 2 and Figure 3 The outer wall of the inner airbag 1 is provided with a buffer mechanism 4, which can achieve a buffering effect by deforming the silicone block 403 and the buffer film 402 under external force. The buffer mechanism 4 includes a rubber strip 401, the end of the rubber strip 401 is fixedly connected to the inner airbag 1, and the outer wall of the rubber strip 401 is fixedly connected to the buffer film 402. The buffer film 402 is made of EPE, which has shockproof and high elasticity. The outer wall of the buffer film 402 is fixedly connected to the silicone block 403.

[0023] See also Figure 1 and Figure 2The surface of the inner airbag 1 is connected with the inflation duct 5, the surface of the inner airbag 1 is connected with the external leakage duct 6, an inflation valve 7 is installed at the end of the inflation duct 5, and a deflation valve 8 is installed at the end of the external leakage duct 6. The outer wall of the inflation duct 5 is connected with the external inflation duct 11, and the outer wall of the external inflation duct 11 is installed with a flow valve 9. The flow valve 9 adopts PIFLV, which is an electronic control valve and has the function of limiting flow. It effectively controls the ratio between the gas contained in the outer layer bursting bag 2 and the inner airbag 1. The inner wall of the outer layer bursting bag 2 is connected with the external inflation duct 11, the inner wall of the outer layer bursting bag 2 is fixedly connected with the protective cover 10, and the inner wall of the protective cover 10 is fixedly connected with the inflation valve 7 and the deflation valve 8.

[0024] Working principle:

[0025] Preparation

[0026] When it is necessary to use the explosion-proof sealed airbag in the coal mine tunnel, pull the slider 304 to move on the left zipper 302 and the right zipper 303 to open the first bag 301 and the second bag 306, take out the inner airbag 1 and the outer explosion-proof bag 2 inside the first bag 301 and the second bag 306, and roughly spread out the inner airbag 1 and the outer explosion-proof bag 2 manually, and at the same time connect the inflation valve 7 to the external high-pressure nitrogen bottle, so that the inner airbag 1 and the outer explosion-proof bag 2 are continuously injected and expanded into the inner airbag 1 and the outer explosion-proof bag 2 through the inflation duct 5 on the inflation valve 7 and the external inflation duct 11 until the outside of the inner airbag 1 and the outer explosion-proof bag 2 is similar in size to the coal mine tunnel.

[0027] Working stage

[0028] In order to prevent the outer explosion bag 2 from being damaged by external factors and to avoid explosion caused by excessive gas pressure in the outer explosion bag 2, which may cause secondary damage to the coal mine tunnel, the flow valve 9 on the external inflation duct 11 will limit the internal pressure of the injected gas into the outer explosion bag 2 to be lower than that of the inner air bag 1. At the same time, the silicone block 403 will shrink when being squeezed by the outer explosion bag 2, which will have a buffering effect on the outer explosion bag 2, and the buffer membrane 402 will block the external blocks, so that the internal inner air bag 1 will not be damaged, and the surface of the inner air bag 1 will be damaged and exploded. After the work is completed, the inner air bag 1 and the outer explosion bag 2 are drained from the deflation valve 8, and are gradually put into the first bag 301 and the second bag 306 again, and the pull head 304 seals and wraps the first bag 301 and the second bag 306.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof airtight airbag for coal mine tunnels, comprising an inner airbag (1) and an outer explosion-proof airbag (2), characterized in that: The outer wall of the outer bursting bag (2) is provided with a collecting mechanism (3), and the collecting mechanism (3) comprises a first bag (301) and a second bag (306), the outer wall of the first bag (301) is fixedly connected to the outer bursting bag (2), the outer wall of the first bag (301) is fixedly connected to the left zipper (302), the outer wall of the second bag (306) is fixedly connected to the outer bursting bag (2), the outer wall of the second bag (306) is fixedly connected to the right zipper (303), the outer wall of the left zipper (302) is slidably connected to the slider (304), and the lower end of the second bag (306) is fixedly connected to the bottom partition (305).

2. The explosion-proof and sealed airbag for coal mine tunnel according to claim 1, characterized in that: The outer wall of the inner airbag (1) is provided with a buffer mechanism (4), and the buffer mechanism (4) comprises a rubber strip (401), the end of the rubber strip (401) is fixedly connected to the inner airbag (1), the outer wall of the rubber strip (401) is fixedly connected to the buffer film (402), and the outer wall of the buffer film (402) is fixedly connected to the silicone block (403).

3. The explosion-proof and sealed airbag for coal mine tunnel according to claim 1, characterized in that: The surface of the inner layer airbag (1) is connected to the inflation conduit (5), and the surface of the inner layer airbag (1) is connected to the leakage conduit (6).

4. The explosion-proof and sealed airbag for coal mine tunnel according to claim 3, characterized in that: An inflation valve (7) is installed at the end of the inflation conduit (5), and an exhaust valve (8) is installed at the end of the exhaust conduit (6). The outer wall of the inflation conduit (5) is connected to an external inflation conduit (11), and a flow valve (9) is installed on the outer wall of the external inflation conduit (11).

5. The explosion-proof and sealed airbag for coal mine tunnel according to claim 1, characterized in that: The inner wall of the outer bursting bag (2) is connected to the external inflation conduit (11).

6. The explosion-proof and sealed airbag for coal mine tunnel according to claim 1, characterized in that: The inner wall of the outer bursting bag (2) is fixedly connected to the protective sleeve (10), and the inner wall of the protective sleeve (10) is fixedly connected to the inflation valve (7) and the deflation valve (8).

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