A rapid sealing device for use in a coal mine

Abstract

This invention discloses a rapid sealing device for underground coal mines, comprising: a ventilation tent, an air door disposed thereon, an airbag assembly connected to the ventilation tent, an inflation pipe connected to a blower, and an air inlet pipe disposed on the airbag assembly and cooperating with the inflation pipe; multiple airbag assemblies are provided, and the multiple airbag assemblies are nested layer by layer; the rapid sealing device also includes: a monitor; and a transmission assembly; the monitor monitors the airtightness of the inflated airbag assembly; when the inflated airbag assembly ruptures, causing a decrease in airtightness, the transmission assembly drives the inflation pipe to move to the air inlet pipe of the inner airbag assembly of the airbag assembly to connect and inflate; in this way, the inner airbag assemblies are used in sequence, thereby realizing the monitoring of the airbag assembly in use; if it is damaged, another airbag assembly is quickly inflated to replace it, thus repairing the damaged sealing device, adjusting in time, and continuing to seal the roadway.

Description

Technical Field

[0001] This invention relates specifically to the field of coal mine safety facilities technology, and more specifically to a rapid sealing device for underground coal mines. Background Technology

[0002] In recent years, with the consolidation of the national coal industry, comprehensive mechanization has been applied on a large scale underground, which has increased the possibility and destructiveness of underground accidents to varying degrees.

[0003] In the event of sudden disasters such as fires, explosions, toxic gas leaks, and water inrushes in underground coal mines, airbags can be used to seal off the mine and prevent a chain reaction.

[0004] However, in practical applications, it has been found that when the airbag is fully inflated, gas leakage may occur due to poor airtightness of certain components or the influence of harsh environments. Workers cannot detect this situation in time, nor can they quickly remedy the damage, thus affecting its airtightness and failing to adequately protect the safety of personnel and property underground. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a rapid sealing device for underground coal mines, thereby solving the technical problem of being unable to monitor airbag leakage and remedy damage.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A rapid sealing device for use in underground coal mines, comprising:

[0008] The ventilation tent, the air vents mounted thereon, the airbag assembly connected to the ventilation tent, the inflation pipe connected to the blower, and the air inlet pipe mounted on the airbag assembly and cooperating with the inflation pipe.

[0009] The airbag assembly comprises multiple airbag components, which are nested layer by layer. Each airbag component is connected to multiple air inlet pipes fixed to the windproof tent. The rapid sealing device also includes:

[0010] Monitors, wherein multiple monitors are respectively mounted on multiple airbag assemblies, are used to monitor the airtightness of the inflated airbag assemblies; and

[0011] The transmission component, installed on the airtightness of the fully inflated airbag assembly, is activated when the monitor detects a decrease in the airtightness of the airbag assembly. The transmission component then moves the inflation tube to the air inlet tube of the inner layer of the airbag assembly to connect and inflate the airbag.

[0012] As a further aspect of the present invention: when the inflation tube moves to the inlet of the air inlet tube, the sealing component is triggered to seal the inflation tube and the air inlet tube.

[0013] As a further aspect of the present invention: the sealing component includes:

[0014] A retaining ring, made of magnetic material, is fixed to the opening of the inflation tube facing the air inlet tube. The opening of the inflation tube away from the air inlet tube is connected to the blower.

[0015] The movable ring is slidably installed on the inner wall of the air inlet and connected to the inner wall of the air inlet through an elastic element. The movable ring is made of magnetic material and its magnetism is attracted to that of the fixed ring.

[0016] As a further aspect of the present invention: the transmission assembly includes:

[0017] Gears, rotatably mounted on the windproof tent and driven to rotate by a power source; and

[0018] The rack is slidably mounted on the tent and fixedly connected to the inflation tube.

[0019] As a further aspect of the present invention, the ventilation tent is also equipped with a protective component. When the inflation tube moves to the air inlet of the innermost airbag component, the protective component is triggered to support the inner wall of the tunnel.

[0020] As a further aspect of the present invention: the windproof tent is equipped with a limit switch, which interferes with the inflation tube and is electrically connected to the protective component.

[0021] As a further aspect of the present invention: the protective component includes:

[0022] Connecting rods are fixed to the windproof tent;

[0023] A support plate, slidably mounted on a connecting rod, and driven to move by an output source; and

[0024] Reinforcing ribs, fixed to the support plate, are used to form a triangular structure on the support plate.

[0025] The beneficial effects of this invention are:

[0026] (1) In this invention, the air tightness of the inflated airbag assembly is monitored by a monitor. When the air tightness decreases due to the rupture of the inflated airbag assembly, the transmission assembly drives the inflation tube to move to the air inlet tube of the inner layer of the airbag assembly and inflates it. At the same time, the monitor inside is controlled by the external controller to start monitoring. In this way, the internal airbag assembly is used in sequence, and the airbag assembly in use can be monitored. If it is damaged, another airbag assembly is quickly inflated to replace it, repairing the damaged sealing device, adjusting and continuing to block the roadway in time, cutting off the chain reaction of disaster accidents in time, and ensuring the safety of personnel and property to the greatest extent.

[0027] (2) In this invention, magnetic attraction combined with elastic force is used to adjust the sealing state between the inflation tube and the air inlet tube in a timely manner; when the movable ring is moved by the transmission component to the position aligned with the fixed ring, the magnetic attraction between the two can cause the movable ring to descend and dock with the fixed ring, thus realizing the sealing docking between the inflation tube and the air inlet tube. After the movable ring is driven by the transmission component to slide away from the fixed ring, the elastic force of the elastic element to restore the deformation drives the movable ring to return to the initial state.

[0028] (3) In this invention, when the air tube triggers the limit switch, the external controller receives the signal from the limit switch and then controls the support plate to slide so that the support plate moves away from the connecting rod, that is, moves toward the inner wall of the roadway, and further supports the inner wall of the roadway, thereby improving the sealing effect on the disaster area in the coal mine. Attached Figure Description

[0029] The invention will now be further described with reference to the accompanying drawings.

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the air inlet pipe in this invention;

[0032] Figure 3 In this invention Figure 2 A magnified schematic diagram of the structure at point A;

[0033] Figure 4 This is a schematic diagram of the structure of the protective component in this invention;

[0034] Figure 5 In this invention Figure 4 A magnified schematic diagram of the structure at point B.

[0035] In the diagram: 1. Air curtain; 2. Air damper; 3. Airbag assembly; 301. Main airbag; 302. Secondary airbag; 4. Inflation hose; 5. Air inlet hose; 6. Transmission assembly; 601. Gear; 602. Rack; 7. Sealing assembly; 701. Fixed ring; 702. Moving ring; 703. Elastic element; 8. Protective assembly; 801. Connecting rod; 802. Support plate; 803. Reinforcing rib; 9. Limit switch; 10. Monitor. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please see Figures 1-2 As shown, the present invention is a rapid sealing device for use in underground coal mines, comprising:

[0038] 1. Air curtain, 2. Air door set on it, 3. Airbag assembly connected to the air curtain, 4. Inflation pipe connected to the blower, and 5. Air inlet pipe set on the airbag assembly 3 and cooperating with the inflation pipe 4.

[0039] The airbag assembly 3 is provided in multiple layers, and the multiple airbag assemblies 3 are nested in layers. The multiple airbag assemblies 3 are respectively connected to multiple air inlet pipes 5 fixed on the windproof tent 1. The rapid sealing device also includes:

[0040] Monitor 10, a plurality of monitors 10 are respectively mounted on a plurality of airbag assemblies 3, for monitoring the airtightness of the inflated airbag assemblies 3; and

[0041] The transmission component 6 is installed on the air tent 1. When the monitor 10 detects that the airtightness of the fully inflated airbag component 3 has decreased, the transmission component 6 drives the inflation tube 4 to move to the air inlet tube 5 of the inner layer of the airbag component 3 and inflate it.

[0042] In one embodiment, the airbag assembly 3 includes a main airbag 301 connected to the windbreak 1 and a secondary airbag 302 installed on the main airbag 301. The secondary airbag 302 is installed at the edge of the main airbag 301, and the two are only linearly connected at the edge. When the airbag assembly 3 is not fully inflated, the state and orientation of the secondary airbag 302 are adjusted in time, and the skirt of the secondary airbag 302 is used to seal the inner wall of the tunnel tightly. Multiple main airbags 301 are nested layer by layer and correspond to multiple air inlet pipes 5 respectively.

[0043] It should be noted that the monitor 10 is connected to an external controller; the main airbag 301 and the auxiliary airbag 302 in this invention are both provided with hooks for fixing the rapid sealing device, and the device is provided with a safety valve. The external controller, safety valve and hooks are all prior art, and this application has not improved them. Therefore, it is not necessary to disclose their specific mechanical structure and circuit structure, and it does not affect the integrity of this application.

[0044] In practical application, the airbag-type rapid sealing device is delivered to the sealing location. Construction should ideally be carried out at a location where the tunnel support and roof are relatively intact and free from leaks. Debris at the sealing location should be properly cleared. During construction, first locate the center position of the support, then hang the hook of the ventilation tent 1 on the support, and then hang the rope buckle of the airbag assembly 3 on the hook of the ventilation tent 1. The inflation pipe 4 is connected to the air inlet pipe 5 of the outermost airbag assembly 3, and the airbag assembly 3 is inflated. The airbag assembly 3 can quickly seal the tunnel, promptly cutting off the chain reaction of a disaster and ensuring the safety of personnel and property to the greatest extent. If the inflated airbag assembly 3 ruptures, and the monitor 10 detects a decrease in its airtightness, the external controller controls the transmission assembly 6 to move the inflation pipe 4 to the airbag assembly 3. The air inlet pipe 5 of the inner airbag assembly 3 is connected and inflated, so that the new airbag assembly 3 can quickly replace the damaged airbag assembly 3. At the same time, the monitor 10 inside is activated by the external controller to monitor. By using the inner airbag assembly 3 in this way, the status of the airbag assembly 3 can be monitored. If it is damaged, another airbag assembly 3 is quickly inflated to replace it, repairing the damaged sealing device, adjusting and continuing to block the roadway in a timely manner, and minimizing the loss of people, machines and environment caused by the disaster. Rescue personnel can enter the disaster area through the air door 2.

[0045] like Figures 1-3 As shown, in a preferred embodiment of the present invention, when the inflation tube 4 moves to the inlet of the air inlet tube 5, the sealing component 7 is triggered to seal the inflation tube 4 and the air inlet tube 5.

[0046] In one embodiment, the sealing component 7 includes:

[0047] A retaining ring 701 is fixed to the opening of the inflation tube 4 facing the air inlet tube 5, and the retaining ring 701 is made of magnetic material. The opening of the inflation tube 4 away from the air inlet tube 5 is connected to the blower; and

[0048] The movable ring 702 is slidably installed on the inner wall of the air inlet of the air inlet pipe 5 and is connected to the inner wall of the air inlet pipe 5 through the elastic element 703. The movable ring 702 is made of magnetic material and its magnetism is attracted to the magnetism of the fixed ring 701.

[0049] In practical applications, the elastic element 703 can be selected from, for example... Figure 3The spring shown can be replaced by other elastic components, such as silicone pillars, spring sheets, etc., which are not specifically limited in this embodiment. In the initial state, the movable ring 702 is located inside the opening of the air inlet pipe 5 and does not interfere with the fixed ring 701. When the movable ring 702 is moved by the transmission component 6 to a position aligned with the fixed ring 701, the magnetic attraction between the two can cause the movable ring 702 to descend and dock with the fixed ring 701, thus achieving a tight docking between the air inlet pipe 4 and the air inlet pipe 5. At this time, the elastic element 703 deforms. When the movable ring 702 slides away from the fixed ring 701 by the transmission component 6, the elastic force of the elastic element 703 restores its deformation and drives the movable ring 702 to return to its initial state, that is, the movable ring 702 is stored inside the opening of the air inlet pipe 5.

[0050] Of course, the contact surfaces of the fixed ring 701 and the movable ring 702 can be provided with an inclined surface to facilitate the movable ring 702 to slide away from the fixed ring 701 and release the connection between the two.

[0051] like Figures 1-2 As shown, in a preferred embodiment of the present invention, the transmission assembly 6 includes:

[0052] Gear 601 is rotatably mounted on the windproof tent 1 and is driven to rotate by a drive source; and

[0053] The rack 602 is slidably mounted on the windproof tent 1 and fixedly connected to the inflation tube 4.

[0054] In one embodiment, the driving source can be a motor assembly, a gear assembly or a pulley assembly driven by a motor, as long as it can make the gear 601 rotate. This embodiment does not make specific limitations here.

[0055] In practical application, when the monitor 10 detects a decrease in the airtightness of the fully inflated airbag assembly 3, it sends a signal to the external controller. The external controller controls the drive source to drive the gear 601 to rotate, which in turn drives the rack 602 to slide, causing the inflation tube 4 to move and replace the air inlet tube 5 connected to the inflation tube 4. It should be noted that in this invention, the direction in which the rack 602 drives the inflation tube 4 to move is from the air inlet tube 5 corresponding to the outermost airbag assembly 3 to the air inlet tube 5 corresponding to the innermost airbag assembly 3. That is to say, in the initial state, the outermost airbag assembly 3 is inflated and used first. After it is damaged, the outermost airbag assembly 3 inside it begins to inflate and be used. This continues in sequence, so that when an airbag assembly 3 is damaged, another airbag assembly 3 can be quickly inflated to replace it, thus realizing the remedy for the sealing device.

[0056] like Figures 1-5As shown, in a preferred embodiment of the present invention, the ventilation tent 1 is also provided with a protective component 8. When the inflation pipe 4 moves to the air inlet pipe 5 of the innermost airbag component 3, the protective component 8 is triggered to support the inner wall of the tunnel.

[0057] In one embodiment, the windproof tent 1 is equipped with a limit switch 9, which interferes with the inflation tube 4 and is electrically connected to the protective component 8.

[0058] Of course, the limit switch 9 is connected to an external controller. Both the limit switch 9 and the external controller are existing technologies. This application does not improve them. Therefore, it is not necessary to disclose their specific mechanical and circuit structures, and this does not affect the integrity of this application.

[0059] In practical application, the protective component 8 is not used in the initial state to avoid obstructing the sealing of the inner wall of the roadway by the outer airbag component 3. When the inflation pipe 4 moves to the air inlet pipe 5 of the innermost airbag component 3, the inflation pipe 4 triggers the limit switch 9, which activates the protective component 8 to further support the inner wall of the roadway and improve the sealing effect on the disaster area in the coal mine.

[0060] like Figure 5 As shown, in a preferred embodiment of the present invention, the protective component 8 includes:

[0061] Connecting rod 801 is fixed to the windproof tent 1;

[0062] Support plate 802 is slidably mounted on connecting rod 801 and is driven to move by output source; and

[0063] The reinforcing rib 803 is fixed to the support plate 802 and is used to form a triangular structure on the support plate 802.

[0064] In one embodiment, the output source may be a hydraulic cylinder, a pneumatic cylinder, or other components that can achieve linear motion. This embodiment does not impose any specific limitations on these components.

[0065] In practical application, when the air inlet pipe 4 triggers the limit switch 9, the external controller receives the signal from the limit switch 9 and then controls the support plate 802 to slide, so that the support plate 802 moves away from the connecting rod 801, that is, moves towards the inner wall of the tunnel, and supports the inner wall of the tunnel; the triangular structure formed by the reinforcing rib 803 can effectively improve the support strength of the support plate 802.

[0066] The working principle of this invention: In the above embodiments, this invention provides a rapid sealing device for underground coal mines. An inflation pipe 4 connects to the air inlet pipe 5 of the outermost airbag assembly 3, inflating the airbag assembly 3 to achieve rapid sealing of the roadway. When the inflated airbag assembly 3 ruptures, the monitor 10 detects a decrease in airtightness. The external controller controls the transmission assembly 6 to move the inflation pipe 4 to the air inlet pipe 5 of the inner airbag assembly 3 for connection and inflation. This allows a new airbag assembly 3 to quickly replace the damaged one. Simultaneously, the monitor 10 inside is activated by the external controller for monitoring. This process of using internal airbag assemblies 3 allows for monitoring of the airbag assembly 3 in use. If a rupture occurs, another airbag assembly 3 is quickly inflated to replace it, thus repairing the damaged sealing device. This timely adjustment and continued sealing of the roadway minimizes the losses to people, machinery, and the environment caused by disasters, promptly cutting off the chain reaction of disasters and ensuring the safety of personnel and property to the greatest extent possible.

[0067] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A rapid sealing device for use in underground coal mines, comprising: The wind tent (1), the wind door (2) set on it, the airbag assembly (3) connected to the wind tent (1), the inflation pipe (4) connected to the blower, and the air inlet pipe (5) set on the airbag assembly (3) and cooperating with the inflation pipe (4); The feature is that multiple airbag components (3) are provided, and the multiple airbag components (3) are nested layer by layer, and the multiple airbag components (3) are respectively connected to multiple air inlet pipes (5) fixed on the windproof tent (1). The rapid sealing device further includes: Monitors (10), a plurality of monitors (10) are respectively mounted on a plurality of airbag assemblies (3) for monitoring the airtightness of the inflated airbag assemblies (3); and The transmission assembly (6) is installed on the wind tent (1). When the monitor (10) detects that the air tightness of the fully inflated airbag assembly (3) has decreased, the transmission assembly (6) drives the inflation tube (4) to move to the air inlet tube (5) of the inner layer of the airbag assembly (3) and inflate it. In the initial state, the outermost airbag assembly (3) is inflated first. After it is damaged, the inner outermost airbag assembly (3) begins to inflate and is used. This continues in sequence, so that when the airbag assembly (3) is damaged, another airbag assembly (3) can be quickly inflated to replace it. The airbag assembly (3) includes a main airbag (301) connected to the wind tent (1) and a secondary airbag (302) installed on the main airbag (301). The secondary airbag (302) is installed at the edge of the main airbag (301), and the two are only connected linearly at the edge. When the airbag assembly (3) is not fully inflated, the state and orientation of the secondary airbag (302) are adjusted in time, and the skirt of the secondary airbag (302) is used to seal the inner wall of the tunnel tightly. Multiple main airbags (301) are nested layer by layer and correspond to multiple air inlets (5) respectively. The ventilation tent (1) is also equipped with a protective component (8). When the inflation pipe (4) moves to the air inlet pipe (5) of the innermost airbag component (3), the protective component (8) is triggered to support the inner wall of the tunnel. The windproof tent (1) is equipped with a limit switch (9), which interferes with the inflation tube (4) and is electrically connected to the protective component (8); The protective component (8) includes: Connecting rod (801) is fixed to the windproof tent (1); A support plate (802) is slidably mounted on a connecting rod (801) and is driven to move by an output source; and A reinforcing rib (803) is fixed to the support plate (802) to form a triangular structure on the support plate (802); When the inflation tube (4) moves to the inlet of the air inlet tube (5), the sealing component (7) is triggered to seal the space between the inflation tube (4) and the air inlet tube (5); The sealing component (7) includes: A retaining ring (701) is fixed to the opening of the inflation tube (4) facing the air inlet tube (5), and the retaining ring (701) is made of magnetic material. The opening of the inflation tube (4) away from the air inlet tube (5) is connected to a blower; and The movable ring (702) is slidably installed on the inner wall of the inlet of the air inlet pipe (5) and connected to the inner wall of the air inlet pipe (5) through the elastic element (703). The movable ring (702) is made of magnetic material and its magnetism is attracted to the magnetism of the fixed ring (701).

2. The rapid sealing device for underground coal mines according to claim 1, characterized in that, The transmission assembly (6) includes: Gear (601), rotatably mounted on the windproof tent (1), and driven to rotate by a drive source; and The rack (602) is slidably mounted on the windproof tent (1) and fixedly connected to the inflation tube (4).

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