Roadway plugging device

Abstract

The roadway plugging device comprises a plugging air bag, a supporting air bag and an elastic cover, the plugging air bag is arranged in a roadway and used for plugging a goaf, the supporting air bag is arranged on the side, away from the goaf, of the plugging air bag, and the supporting air bag and the plugging air bag are detachably connected; the length of the bottom of the supporting air bag in the length direction of the roadway is larger than that of the top of the supporting air bag in the length direction of the roadway, and the elastic cover is arranged in the roadway, covers the blocking air bag and the supporting air bag and is used for exhausting and resetting of the blocking air bag and the supporting air bag. According to the roadway plugging device, the plugging operation of a goaf is simplified, the plugging cost is reduced, the dismounting and mounting speed is high, the plugging efficiency is effectively improved, meanwhile, the problems of damage, collapse and the like are not prone to occurring, and the problems of air leakage, air leakage and the like are not prone to occurring, so that diffusion of harmful gas, dust and the like is effectively prevented, and the service life of the roadway is prolonged. And the safe operation of underground coal mining is ensured.

Description

Technical Field

[0001] The present disclosure relates to the technical field of tunnel blocking, and in particular to a tunnel blocking device. Background Art

[0002] In order to control the gas in the goaf and prevent the spontaneous combustion of coal left in the goaf, high-gas coal mining faces often need to seal the goaf in the upper corners of the working face, bury gas extraction pipelines to extract gas from the goaf, or bury nitrogen injection and grouting pipelines to control the spontaneous combustion of the goaf, and bury relevant monitoring pipelines.

[0003] At present, the goaf is usually sealed by manually stacking sandbag walls. However, the sandbags need to be removed and stacked again every time the working face advances a certain distance. This is not only labor-intensive and has high sealing costs, but also slow and has low sealing efficiency. At the same time, the sandbag walls are less stable and are prone to damage and collapse. In addition, the sandbag walls are not airtight, and have serious air and gas leakage, which can easily lead to excessive harmful gases in the working face, increasing the danger of coal mining. Summary of the Invention

[0004] The present disclosure aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the purpose of the present disclosure is to provide a tunnel blocking device.

[0006] In order to achieve the above-mentioned purpose, the present disclosure provides a tunnel sealing device, comprising: a sealing airbag, a supporting airbag and an elastic cover, the sealing airbag is arranged in the tunnel, and the sealing airbag is used to seal the goaf, the supporting airbag is arranged on the side of the sealing airbag away from the goaf, and the supporting airbag and the sealing airbag are detachably connected, the length of the bottom of the supporting airbag in the length direction of the tunnel is greater than the length of the top of the supporting airbag in the length direction of the tunnel, the elastic cover is arranged in the tunnel, and the elastic cover is arranged on the sealing airbag and the supporting airbag, and the elastic cover is used for exhausting and resetting the sealing airbag and the supporting airbag.

[0007] Optionally, at least one reinforcing airbag is provided on a side of the blocking airbag close to the goaf, the reinforcing airbag is arranged along the height direction of the tunnel, and the reinforcing airbag protrudes in a direction close to the goaf.

[0008] Optionally, a coating layer is provided on a side of the blocking airbag close to the goaf, and the coating layer is used for reducing vibration and absorbing energy.

[0009] Optionally, the elastic cover includes: multiple elastic bands, both ends of which are respectively arranged on the inner wall of the tunnel, and the elastic bands bypass the blocking airbag and the supporting airbag, and the multiple elastic bands are arranged at intervals along the height direction of the tunnel.

[0010] Optionally, the blocking device further includes: a first skeleton and / or a second skeleton, the first skeleton is arranged in the blocking airbag, and the second skeleton is arranged in the supporting airbag.

[0011] Optionally, the supporting airbag includes: a first part and a second part, the first part is arranged on the bottom plate of the tunnel, and the first part is connected to the blocking airbag, the second part is a right-angled trapezoid, and the lower bottom surface of the second part is connected to the first part, the upper bottom surface of the second part is connected to the top plate of the tunnel, the straight waist surface of the second part is connected to the blocking airbag, and the inclined waist surface of the second part is arranged away from the blocking airbag.

[0012] Optionally, the blocking device further includes: a plurality of Velcros, wherein the female surface of the Velcros is arranged on the blocking airbag, and the male surface of the Velcros is arranged on the supporting airbag, and the female surface and the male surface of the Velcros are bonded.

[0013] Optionally, the blocking device further includes: a plurality of zippers, wherein the first chain belt of the zipper is arranged on the blocking airbag, and the second chain belt of the zipper is arranged on the supporting airbag, and the chain teeth of the first chain belt are engaged with the chain teeth of the second chain belt.

[0014] Optionally, an annular groove is provided on the circumference of the tunnel, and the blocking airbag is clamped in the annular groove.

[0015] Optionally, the blocking device further includes: at least one hook and at least one ring, the hook is arranged on the inner wall of the tunnel, the ring is arranged on the blocking airbag or the supporting airbag, and the hook is hung on the ring.

[0016] The technical solution provided by the present disclosure may have the following beneficial effects:

[0017] The combination of sealing airbags, supporting airbags and elastic covers not only simplifies the sealing operation of the goaf and reduces the sealing cost, but also speeds up the assembly and disassembly, effectively improving the sealing efficiency. At the same time, the sealing device has stronger integrity and better stability, and is less likely to be damaged or collapsed. In addition, the sealing device has better airtightness, and the gas filling method is less likely to cause air leakage or gas leakage, thereby effectively preventing the spread of harmful gases, dust, etc., and ensuring the safety of underground coal mining operations.

[0018] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 This is a schematic structural diagram of a tunnel blocking device proposed in one embodiment of the present disclosure when it is arranged in a tunnel;

[0021] Figure 2 It is a structural schematic diagram of a tunnel blocking device proposed in one embodiment of the present disclosure;

[0022] As shown in the figure: 1. Block the airbag;

[0023] 2. Support airbag, 21. first part, 22. second part;

[0024] 3. Elastic cover, 31. Elastic band;

[0025] 4. Strengthen the airbag, 5. Velcro;

[0026] 100. Alley. DETAILED DESCRIPTION

[0027] The following describes in detail embodiments of the present disclosure, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present disclosure and are not to be construed as limiting the present disclosure. On the contrary, the embodiments of the present disclosure include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0028] like Figure 1 and Figure 2 As shown, the embodiment of the present disclosure proposes a tunnel sealing device, including: a sealing airbag 1, a supporting airbag 2 and an elastic cover 3. The sealing airbag 1 is arranged in the tunnel 100, and the sealing airbag 1 is used to seal the goaf. The supporting airbag 2 is arranged on the side of the sealing airbag 1 away from the goaf, and the supporting airbag 2 and the sealing airbag 1 are detachably connected. The length of the bottom of the supporting airbag 2 in the length direction of the tunnel 100 is greater than the length of the top of the supporting airbag 2 in the length direction of the tunnel 100. The elastic cover 3 is arranged in the tunnel 100, and the elastic cover 3 is covered on the sealing airbag 1 and the supporting airbag 2. The elastic cover 3 is used for exhausting and resetting the sealing airbag 1 and the supporting airbag 2.

[0029] It can be understood that since the blocking airbag 1 is arranged in the tunnel 100, the blocking airbag 1 can directly fill the cross-section of the tunnel 100 after inflation, thereby achieving the blocking of the goaf, and since the supporting airbag 2 is arranged on the side of the blocking airbag 1 away from the goaf, and the length of the bottom of the supporting airbag 2 in the length direction of the tunnel 100 is greater than the length of the top of the supporting airbag 2 in the length direction of the tunnel 100, the blocking airbag 1 can withstand the air pressure impact from the tunnel 100 under the support of the supporting airbag 2, thereby ensuring the stable blocking of the goaf by the blocking airbag 1. At the same time, since the elastic cover 3 is arranged in the tunnel 100, and the elastic cover 3 is arranged on the blocking airbag 1 and the supporting airbag 2, the blocking airbag 1 and the supporting airbag 2 can use the elastic cover 3 to accelerate the discharge of gas when disassembled, thereby shortening the operation time.

[0030] Therefore, the cooperation of the sealing airbag 1, the supporting airbag 2 and the elastic cover 3 not only simplifies the sealing operation of the goaf and reduces the sealing cost, but also speeds up the disassembly and assembly, effectively improving the sealing efficiency. At the same time, the sealing device has stronger integrity and better stability, and is less likely to be damaged or collapsed. In addition, the sealing device has better airtightness, and the gas filling method is less likely to cause air leakage or gas leakage, thereby effectively preventing the spread of harmful gases, dust, etc., and ensuring the safety of underground coal mining operations.

[0031] It should be noted that the blocking airbag 1 is used to fill the tunnel 100 with gas to achieve the blocking of the goaf. The specific type of the blocking airbag 1 can be set according to actual needs and is not limited to this. For example, the cross-sectional shape of the blocking airbag 1 is adapted to the cross-sectional shape of the tunnel 100. Under the action of the filling gas, the blocking airbag 1 can completely fill the cross-sectional area of the tunnel 100. The blocking airbag 1 can be a structure close to a rectangular parallelepiped. The blocking airbag 1 has at least one ventilation hole, and a manual switch valve or an electronic switch valve is provided on the ventilation hole. When the blocking airbag 1 is installed, the ventilation hole is used to inflate the blocking airbag 1. When the blocking airbag 1 is disassembled, the ventilation hole is used to exhaust air from the blocking airbag 1.

[0032] The support airbag 2 is used to use gas to support it in the tunnel 100 to firmly seal the airbag 1. The specific type of the support airbag 2 can be set according to actual needs and is not limited to this. For example, the cross-section of the support airbag 2 can be a wedge-shaped, trapezoidal, or other shape with a long lower base and a short upper base. The support airbag 2 has at least one ventilation hole, and a manual switch valve or an electronic switch valve is provided on the ventilation hole. When the support airbag 2 is installed, the ventilation hole is used to inflate the support airbag 2. When the support airbag 2 is removed, the ventilation hole is used to exhaust air from the support airbag 2.

[0033] Among them, the length of the bottom of the support airbag 2 in the length direction of the alley 100 is greater than the length of the top of the support airbag 2 in the length direction of the alley 100, which not only makes the contact area between the support airbag 2 and the alley 100 larger, thereby ensuring stable support for the blocking airbag 1, but also makes the top of the support airbag 2 have a smaller volume, thereby improving the inflation efficiency and exhaust efficiency of the support airbag 2, while reducing processing costs.

[0034] The elastic cover 3 is used to apply pressure on the blocking airbag 1 and the supporting airbag 2 so that the gas in the blocking airbag 1 and the supporting airbag 2 can be discharged faster. When the blocking airbag 1 and the supporting airbag 2 are inflated, the pressure of the gas can overcome the elastic force of the elastic cover 3 and make the blocking airbag 1 and the supporting airbag 2 stand up. The specific type of the elastic cover 3 can be set according to actual needs and is not limited to this.

[0035] like Figure 1 and Figure 2 As shown, in some embodiments, at least one reinforcing airbag 4 is provided on the side of the blocking airbag 1 close to the goaf, the reinforcing airbag 4 is arranged along the height direction of the tunnel 100, and the reinforcing airbag 4 protrudes in the direction close to the goaf.

[0036] It can be understood that since the reinforcing airbag 4 is arranged along the height direction of the tunnel 100 and the reinforcing airbag 4 protrudes in the direction close to the goaf, the sealing airbag 1 can use the reinforcing airbag 4 to improve its own strength, disperse the concentrated impact pressure, and thus enhance the impact resistance and ensure the stability and sealing of the goaf.

[0037] It should be noted that the reinforcing airbag 4 is used to strengthen the strength of the blocking airbag 1, and at the same time, the curved surface formed by the protrusion is used to disperse the concentrated impact pressure. The specific type of the reinforcing airbag 4 can be set according to actual needs and is not limited to this. For example, the reinforcing airbag 4 can be integrally formed with the blocking airbag 1, that is, the reinforcing airbag 4 is connected to the blocking airbag 1, and the cross-section of the reinforcing airbag 4 can be semicircular.

[0038] In some embodiments, a coating layer is provided on the side of the blocking airbag 1 close to the goaf, and the coating layer is used for vibration reduction and energy absorption.

[0039] It can be understood that since the coating layer is arranged on the side of the sealing airbag 1 close to the goaf, the sealing airbag 1 can utilize the vibration reduction and energy absorption of the coating layer to improve the overall toughness, thereby enhancing the impact resistance and ensuring the stable sealing of the goaf.

[0040] It should be noted that the coating layer is used to reduce vibration and absorb energy. The specific type of coating layer can be set according to actual needs and is not limited to this. For example, the coating layer can be P4U smart material, where P4U smart material is a general term for liquid body armor composite materials and intelligent flexible elastomers. It is a smart material that can sense, respond to, and detect environmental stress. Under normal conditions, it remains relaxed, soft and elastic. Once subjected to a violent collision or impact, the molecules immediately lock together, quickly tightening and hardening, thereby absorbing and digesting the external force, forming a protective layer. When the external force disappears, the material returns to its original soft and elastic state.

[0041] like Figure 1 As shown, in some embodiments, the elastic cover 3 includes: multiple elastic bands 31, the two ends of the elastic bands 31 are respectively arranged on the inner wall of the tunnel 100, and the elastic bands 31 bypass the blocking airbag 1 and the supporting airbag 2, and the multiple elastic bands 31 are arranged at intervals along the height direction of the tunnel 100.

[0042] It can be understood that since the two ends of the elastic band 31 are respectively arranged on the inner wall of the tunnel 100, and the elastic band 31 bypasses the blocking airbag 1 and the supporting airbag 2, when the blocking airbag 1 and the supporting airbag 2 are inflated, the pressure of the gas can overcome the elastic force of the elastic band 31 and make the blocking airbag 1 and the supporting airbag 2 stand up. When the blocking airbag 1 and the supporting airbag 2 are deflated, the elastic force of the elastic band 31 can accelerate the deflation of the blocking airbag 1 and the supporting airbag 2. Therefore, the removal efficiency of the blocking airbag 1 and the supporting airbag 2 can be improved without affecting the installation of the blocking airbag 1 and the supporting airbag 2, thereby effectively reducing the operating cost.

[0043] It should be noted that multiple elastic bands 31 constitute the elastic cover 3. The specific type of elastic bands 31 can be set according to actual needs and is not limited thereto. The blocking airbag 1 and the supporting airbag 2 can be provided with multiple ear holes for the elastic bands 31 to pass through, ensuring stable winding of the elastic bands 31. The ear holes can be formed by winding ropes, belts, etc. around the airbags.

[0044] In some embodiments, the blocking device further includes: a first skeleton, which is disposed inside the blocking airbag 1 .

[0045] It can be understood that since the first skeleton is arranged in the blocking airbag 1, the blocking airbag 1 can use the support of the first skeleton to enhance stability and strength, thereby ensuring the blocking effect and effectively preventing the spread of harmful gases, dust, etc.

[0046] It should be noted that the first skeleton is used to support the blocking airbag 1. The specific type of the first skeleton can be set according to actual needs and is not limited to this. For example, the first skeleton can be a rubber skeleton. The shape of the first skeleton is adapted to the shape of the blocking airbag 1, and the overall volume of the first skeleton is smaller than the volume of the blocking airbag 1 after expansion.

[0047] In some embodiments, the blocking device further includes: a second skeleton, which is disposed inside the supporting airbag 2 .

[0048] It can be understood that since the second skeleton is arranged in the supporting airbag 2, the supporting airbag 2 can use the support of the second skeleton to enhance stability and strength, thereby ensuring the supporting effect on the blocking airbag 1, and then using the blocking airbag 1 to effectively prevent the spread of harmful gases, dust, etc.

[0049] It should be noted that the second skeleton is used to support the support airbag 2. The specific type of the second skeleton can be set according to actual needs and is not limited to this. For example, the second skeleton can be a rubber skeleton. The shape of the second skeleton is adapted to the shape of the support airbag 2, and the overall volume of the second skeleton is smaller than the volume after the support airbag 2 is blocked.

[0050] like Figure 2 As shown, in some embodiments, the supporting airbag 2 includes: a first part 21 and a second part 22, the first part 21 is arranged on the bottom plate of the tunnel 100, and the first part 21 is connected to the blocking airbag 1, the second part 22 is a right-angled trapezoid, and the lower bottom surface of the second part 22 is connected to the first part 21, the upper bottom surface of the second part 22 is connected to the top plate of the tunnel 100, the straight waist surface of the second part 22 is connected to the blocking airbag 1, and the inclined waist surface of the second part 22 is arranged away from the blocking airbag 1.

[0051] It can be understood that the first part 21 and the second part 22 constitute a support airbag 2 with a larger bottom length and a smaller top length. By utilizing the first part 21, a larger contact area is achieved between the support airbag 2 and the alley 100, thereby ensuring that the support airbag 2 stably supports the blocking airbag 1. By utilizing the second part 22, the top of the support airbag 2 has a smaller volume, thereby improving the inflation efficiency and exhaust efficiency of the support airbag 2, while reducing the processing cost of the support airbag 2.

[0052] It should be noted that the specific types of the first part 21 and the second part 22 can be set according to actual needs and are not limited to this. For example, the first part 21 can be a structure close to a rectangular parallelepiped, and the first part 21 and the second part 22 are integrally formed to form the support airbag 2 of the overall structure.

[0053] Among them, the cross-section of the right-angled trapezoid is a right-angled trapezoid, and the right-angled trapezoid has an upper base surface and a lower base surface that are relatively set, as well as a straight waist surface and an inclined waist surface that are relatively set. In addition, the right-angled trapezoid also has two side surfaces that are relatively set, and the shape of the side surfaces is a right-angled trapezoid.

[0054] like Figure 1 and Figure 2 As shown, in some embodiments, the blocking device further includes: a plurality of Velcros 5, the female surface of the Velcros 5 is arranged on the blocking airbag 1, and the male surface of the Velcros 5 is arranged on the supporting airbag 2, and the female surface and the male surface of the Velcros 5 are bonded.

[0055] It can be understood that since the female surface of the Velcro 5 is arranged on the blocking airbag 1 and the male surface of the Velcro 5 is arranged on the supporting airbag 2, when the female surface and the male surface of the Velcro 5 are bonded, the blocking airbag 1 and the supporting airbag 2 can be connected, and when the female surface and the male surface of the Velcro 5 are separated, the blocking airbag 1 and the supporting airbag 2 can be disassembled. Therefore, while the blocking airbag 1 and the supporting airbag 2 can be stably arranged, the disassembly of the blocking airbag 1 and the supporting airbag 2 is made more efficient and convenient.

[0056] It should be noted that the Velcro 5 has a male surface and a female surface, and the male surface and the female surface are bonded together by the combination of hook fibers and loop fibers. The specific type of Velcro 5 can be set according to actual needs and is not limited to this. In particular, multiple Velcro strips 5 can be evenly distributed on both sides of the occluding device.

[0057] In some embodiments, the blocking device further includes: a plurality of zippers, wherein the first chain strap of the zipper is arranged on the blocking airbag 1, and the second chain strap of the zipper is arranged on the supporting airbag 2, and the chain teeth of the first chain strap are engaged with the chain teeth of the second chain strap.

[0058] It can be understood that since the first chain belt of the zipper is arranged on the blocking airbag 1 and the second chain belt of the zipper is arranged on the supporting airbag 2, when the chain teeth of the first chain belt and the chain teeth of the second chain belt are engaged, the blocking airbag 1 and the supporting airbag 2 can be connected, and when the chain teeth of the first chain belt and the chain teeth of the second chain belt are separated, the blocking airbag 1 and the supporting airbag 2 can be disassembled. Therefore, while the blocking airbag 1 and the supporting airbag 2 can be stably arranged, the disassembly of the blocking airbag 1 and the supporting airbag 2 is made more efficient and convenient.

[0059] It should be noted that the zipper comprises a first chain belt and a second chain belt, and the first chain belt and the second chain belt are connected by the cooperation between the chain elements. The specific type of the zipper can be set according to actual needs and is not limited thereto. Specifically, two zippers can be provided, with the two zippers respectively distributed on both sides of the blocking device.

[0060] In some embodiments, an annular groove is provided on the circumference of the tunnel 100 , and the blocking airbag 1 is clamped in the annular groove.

[0061] It can be understood that since the sealing airbag 1 is stuck in the annular groove of the tunnel 100, the sealing airbag 1 can be initially embedded in the tunnel 100 after inflation. At the same time, the friction between the sealing airbag 1 and the tunnel 100 can effectively improve the stability of the sealing airbag 1 after inflation, thereby ensuring the stable sealing of the goaf.

[0062] It should be noted that the annular groove is arranged on the circumference of the tunnel 100. Specifically, the inner wall, top plate and bottom plate of the tunnel 100 are all provided with grooves, and multiple grooves are connected in sequence to form an annular groove. The size of the annular groove is adapted to the size of the sealing airbag 1. The specific type of the annular groove can be set according to actual needs and there is no restriction on this.

[0063] In some embodiments, the blocking device further includes: at least one hook and at least one ring, the hook is arranged on the inner wall of the tunnel 100, the ring is arranged on the blocking airbag 1 or the supporting airbag 2, and the hook is hung on the ring.

[0064] It can be understood that since the hook is set on the inner wall of the tunnel 100 and the ring is set on the blocking airbag 1 or the supporting airbag 2, when the hook is hung on the ring, the blocking airbag 1 can be firmly set in the tunnel 100, thereby ensuring the blocking effect and impact resistance of the blocking airbag 1, and at the same time it is easy to disassemble and more convenient to use.

[0065] It should be noted that the hook is used to cooperate with the lifting ring to achieve a stable installation of the blocking airbag 1 in the tunnel 100. The specific type of the hook can be set according to actual needs and is not limited to this. Among them, the hook can be arranged on the inner wall of the tunnel 100 using a rope, an anchor rod, etc.

[0066] The lifting ring is used to cooperate with the lifting hook to achieve a stable installation of the blocking airbag 1 in the tunnel 100. The specific type of the lifting ring can be set according to actual needs and is not limited to this. For example, the lifting ring can be implemented by a fixed rope, a snare, etc. Among them, the lifting hook can be arranged on the inner wall of the tunnel 100 using a rope, an anchor rod, etc.

[0067] The blocking device of this embodiment improves the stability of the blocking airbag 1 during blocking by adding a supporting airbag 2 behind the blocking airbag 1. At the same time, the structure of the blocking airbag 1 is strengthened and improved so that the blocking airbag 1 can withstand the sudden impact pressure generated in the super-large tunnel 100. The impact resistance enables the blocking airbag 1 to respond quickly and work stably when dealing with emergencies, effectively preventing the spread of harmful gases and dust, and ensuring the safety of underground workers.

[0068] It should be noted that, in the description of this disclosure, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of this disclosure, unless otherwise specified, the meaning of "plurality" is two or more.

[0069] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes additional implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0070] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0071] Although the embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are illustrative and are not to be construed as limitations on the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A tunnel blocking device, characterized in that: include: A blocking airbag, which is arranged in the tunnel and is used to block the goaf; A supporting airbag, wherein the supporting airbag is arranged on a side of the blocking airbag away from the goaf, and the supporting airbag and the blocking airbag are detachably connected, and the length of the bottom of the supporting airbag in the length direction of the tunnel is greater than the length of the top of the supporting airbag in the length direction of the tunnel; An elastic cover is provided in the lane, and the elastic cover is provided on the blocking airbag and the supporting airbag, and the elastic cover is used for exhausting and resetting the blocking airbag and the supporting airbag.

2. The tunnel blocking device according to claim 1, characterized in that: At least one reinforcing airbag is provided on a side of the blocking airbag close to the goaf. The reinforcing airbag is arranged along the height direction of the tunnel and protrudes in a direction close to the goaf.

3. The tunnel blocking device according to claim 1, characterized in that: A coating layer is provided on one side of the blocking airbag close to the goaf, and the coating layer is used for reducing vibration and absorbing energy.

4. The tunnel blocking device according to claim 1, characterized in that: The elastic cover comprises: A plurality of elastic bands, both ends of which are respectively arranged on the inner wall of the tunnel, and the elastic bands bypass the blocking airbag and the supporting airbag, and the plurality of elastic bands are arranged at intervals along the height direction of the tunnel.

5. The tunnel blocking device according to claim 1, characterized in that: The blocking device further comprises: a first skeleton, the first skeleton being disposed in the blocking airbag; and / or, A second frame is provided in the support airbag.

6. The tunnel blocking device according to claim 1, characterized in that: The support airbag comprises: a first part, the first part being arranged on the bottom plate of the tunnel and connected to the blocking airbag; The second part is a right-angled trapezoid, and the lower bottom surface of the second part is connected to the first part, the upper bottom surface of the second part is connected to the top plate of the tunnel, the straight waist surface of the second part is connected to the blocking airbag, and the inclined waist surface of the second part is set away from the blocking airbag.

7. The tunnel blocking device according to claim 1, characterized in that: The blocking device further comprises: A plurality of Velcro strips, wherein the female surface of the Velcro strips is arranged on the blocking airbag, and the male surface of the Velcro strips is arranged on the supporting airbag, and the female surface and the male surface of the Velcro strips are bonded.

8. The tunnel blocking device according to claim 1, characterized in that: The blocking device further comprises: A plurality of zippers, wherein a first chain belt of the zipper is arranged on the blocking airbag, and a second chain belt of the zipper is arranged on the supporting airbag, and the chain teeth of the first chain belt are engaged with the chain teeth of the second chain belt.

9. The tunnel blocking device according to claim 1, characterized in that: An annular groove is provided on the circumference of the lane, and the blocking airbag is clamped in the annular groove.

10. The tunnel blocking device according to claim 1, characterized in that: The blocking device further comprises: at least one hook, the hook being arranged on the inner wall of the tunnel; At least one hanging ring is provided on the blocking airbag or the supporting airbag, and the hook is hung on the hanging ring.

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