Underground coal mine electric control automatic explosion suppression device

Abstract

The utility model relates to the technical field of explosion-proof devices, in particular to a coal mine underground electric control automatic explosion-proof device, which comprises an explosion-proof main body, a mounting rack, a sliding rod and a receiving plate, the explosion-proof main body comprises a shell, a gas storage cavity and a mounting frame, high-pressure gas is arranged in the gas storage cavity, a trigger frame is arranged in the mounting frame in a sliding manner, and the receiving plate is arranged in the trigger frame. The trigger frame is fixedly connected with the sliding rod, and the shell is filled with fire extinguishing powder. A sealing structure is arranged in the shell, an electric control assembly matched with the sealing structure is arranged on the shell, the electric control assembly is externally connected with a cloud platform through a wireless module, and the position of the sealing structure is controlled by arranging the electric control assembly, so that whether a gas storage cavity in the shell is communicated with a trigger frame or not is controlled; and when explosion occurs, the sealing structure is controlled to release the sealing state, high-pressure gas enters the trigger frame and sprays out the fire extinguishing powder to extinguish fire, flame propagation is blocked, and loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof devices, in particular to an electric-controlled automatic explosion-proof device in underground coal mines. Background Art

[0002] In coal mines, explosion-proof devices are key equipment used to prevent flame propagation when explosions occur in coal mines. When an explosion occurs in a coal mine, the flame will spread rapidly and cause greater damage. The function of the explosion-proof device is to automatically start after the explosion, isolate the flame, and prevent it from continuing to spread, thereby reducing the losses and hazards caused by the explosion. At present, ball-type locking mechanisms are mostly used for locking. After the receiving device receives the shock wave, it triggers the locking mechanism to cause the high-pressure gas in the high-pressure gas cavity to spray out, thereby spraying out the fire extinguishing powder or fire extinguishing liquid in the fire extinguishing powder cover, blocking the spread of flames and achieving automatic explosion-proof.

[0003] Existing explosion-proof devices usually consist of an impact receiving plate, a slide bar, a hanging component and an explosion-proof body. The impact receiving plate is pushed by the shock wave generated by the explosion to drive the slide bar to move, triggering the explosion-proof body to achieve automatic explosion-proofing. For example, Chinese patent announcement No. CN215520956U discloses "an automatic explosion-proof device for underground coal mines", the movement direction of the piston and the spraying direction of the fire extinguishing powder are consistent with the propagation direction of the shock wave, thereby improving the reliability of explosion-proofing; the piston and the piston sleeve are provided to seal the high-pressure gas when no explosion occurs, and after the explosion occurs, the high-pressure gas is released by moving the piston out of the piston hole, and the piston is used to disperse the high-pressure gas, thereby improving the spraying effect of the fire extinguishing powder, so that the fire extinguishing powder can cover the cross-section of the tunnel in a shorter time;

[0004] However, in actual use, due to the complex environment inside the mine tunnel and the different effects of the shock waves produced by the explosion, many small-scale explosions cannot trigger the explosion-proof devices, resulting in the explosion not being stopped in time, causing greater losses. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art that the shock waves generated by explosions have different effects, many small-scale explosions cannot trigger the explosion-proof devices, resulting in the explosions not being stopped in time and causing greater losses, and proposes an electric-controlled automatic explosion-proof device for underground coal mines.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An electric-controlled automatic explosion-proof device for underground coal mines is designed, comprising an explosion-proof body, a mounting frame, a sliding rod and a receiving plate, wherein the sliding rod is arranged on one side of the explosion-proof body, an adjusting frame is arranged on the sliding rod, and the receiving plate is arranged on one side of the adjusting frame and fixedly connected to the receiving plate;

[0008] The flameproof body comprises a shell, a gas storage cavity and a mounting frame, wherein the gas storage cavity is provided with high-pressure gas, a trigger frame is slidably provided in the mounting frame, the trigger frame is fixedly connected to the slide rod, and the shell is filled with fire extinguishing powder;

[0009] A sealing structure is arranged inside the shell, and an electric control component matched with the sealing structure is arranged on the shell. The electric control component is externally connected to a cloud platform via a wireless module.

[0010] Furthermore, the outer wall of the trigger frame is provided with a plurality of air guide hole groups, the mounting frame is provided with a plurality of through hole groups, and sealing rings are provided between the air guide hole groups.

[0011] Furthermore, the sealing structure comprises a mounting ring slidably mounted on the outer wall of the mounting frame and a sealing portion, the inner wall of the housing is provided with an inclined surface, and the sealing portion abuts against the inclined surface.

[0012] Furthermore, the electric control component includes a motor fixedly arranged on the outer wall of the housing, the output shaft of the motor is fixedly connected with a screw, and the screw is threadedly connected to the mounting ring.

[0013] Furthermore, an inflation tube is provided on the outer shell, and an inner wall of the inflation tube is provided with a non-return structure to prevent the high-pressure gas from overflowing.

[0014] Furthermore, the anti-return structure includes a baffle ring, a sealing head abutting against the baffle ring is arranged in the inflation tube, a support frame is arranged in the inflation tube, and a spring is arranged between the support frame and the sealing head.

[0015] The utility model proposes an electric-controlled automatic explosion-proof device for underground coal mines, which has the following beneficial effects:

[0016] In the utility model, the position of the sealing structure is controlled by setting an electric control component, thereby controlling whether the gas storage chamber in the shell is connected with the trigger frame. When an explosion occurs, the sealing structure is controlled to release the sealing state, and high-pressure gas enters the trigger frame and sprays out the fire extinguishing powder to extinguish the fire, thereby blocking the spread of flames and reducing losses.

[0017] Secondly, in the utility model, by providing an inflation pipe to regularly replenish high-pressure gas in the gas storage chamber, gas leakage after long-term placement is avoided, which makes it impossible for the fire extinguishing powder to be blown out, thereby improving the stability of the explosion-proof device and avoiding the occurrence of startup failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an electric-controlled automatic explosion-proof device for underground coal mines proposed by the utility model;

[0019] Figure 2 It is a structural schematic diagram of the housing of the utility model;

[0020] Figure 3 This is an enlarged structural diagram of the A area of ​​the utility model;

[0021] Figure 4 It is a structural schematic diagram of the through hole group of the utility model.

[0022] In the figure: 1. Flameproof body; 11. Shell; 12. Air storage chamber; 13. Mounting frame; 14. Trigger frame; 15. Air guide hole group; 16. Through hole group; 17. Sealing ring; 2. Mounting frame; 3. Slide rod; 4. Adjustment frame; 5. Sealing structure; 51. Mounting ring; 52. Sealing part; 6. Electronic control component; 61. Motor; 62. Screw; 7. Inflating tube; 8. Check structure; 81. Retaining ring; 82. Sealing head; 83. Support frame; 84. Spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-4 , an electric-controlled automatic explosion-proof device for underground coal mines, comprising an explosion-proof body 1, a mounting frame 2, a slide bar 3 and a receiving plate, wherein the slide bar 3 is arranged on one side of the explosion-proof body 1, an adjustment frame 4 is arranged on the slide bar 3, and the receiving plate is arranged on one side of the adjustment frame 4 and is fixedly connected to the receiving plate;

[0025] The flameproof body 1 comprises a shell 11, a gas storage chamber 12 and a mounting frame 13. The gas storage chamber 12 is provided with high-pressure gas. A trigger frame 14 is slidably provided in the mounting frame 13. The trigger frame 14 is fixedly connected to the slide bar 3. The shell 11 is filled with fire extinguishing powder.

[0026] A sealing structure 5 is arranged in the housing 11 , and an electric control component 6 matched with the sealing structure 5 is arranged on the housing 11 . The electric control component 6 is externally connected to the cloud platform via a wireless module.

[0027] In the utility model, the receiving plate is pushed by the shock wave generated by the explosion to drive the slide bar 3 to move, and the trigger frame 14 is pushed to move so that the high-pressure gas flows into the trigger frame 14 and enters, thereby increasing the internal air pressure of the trigger frame 14, thereby pushing out the fire extinguishing powder in the outer shell 11 to achieve automatic flame blocking and explosion isolation. When the automatic explosion isolation fails, the electronic control component 6 can be remotely controlled through the cloud platform, and the position of the sealing structure 5 can be controlled by the electronic control component 6 to change the position of the sealing structure 5, thereby introducing the high-pressure gas into the trigger frame 14 to spray the fire extinguishing powder.

[0028] Furthermore, in the present embodiment, a plurality of air guide hole groups 15 are provided on the outer wall of the trigger frame 14, a plurality of through hole groups 16 are provided on the mounting frame 13, sealing rings 17 are provided between the air guide hole groups 15, and the sealing rings 17 correspond to the through hole groups 16, thereby forming a sealing structure. When the mounting frame 13 moves, the sealing ring 17 is misaligned with the through hole group 16, and the high-pressure gas enters the trigger frame 14 along the through hole group 16-the air guide hole group 15, and the fire extinguishing powder in the outer shell 11 is sprayed out to extinguish the fire.

[0029] Furthermore, in the present embodiment, the sealing structure 5 includes a mounting ring 51 and a sealing portion 52 which are slidably mounted on the outer wall of the mounting frame 13. The inner wall of the outer shell 11 is provided with an inclined surface, and the sealing portion 52 abuts against the inclined surface to form a sealed environment. When the sealing structure 5 moves, the sealing portion 52 is separated from the inclined surface, so that the high-pressure gas can enter the trigger frame 14 along the through hole group 16-the air guide hole group 15, and spray the fire extinguishing powder in the outer shell 11 to extinguish the fire.

[0030] It should be noted that, in this embodiment, the electronic control component 6 includes a motor 61 fixedly arranged on the outer wall of the housing 11, and the output shaft of the motor 61 is fixedly connected with a screw 62, and the screw 62 is threadedly connected to the mounting ring 51. The motor 61 drives the screw 62 to rotate, so that the mounting ring 51 drives the sealing part 52 to move.

[0031] In addition, in this embodiment, an inflation tube 7 is provided on the outer shell 11, and the inner wall of the inflation tube 7 is provided with a non-return structure 8 for preventing the high-pressure gas from overflowing. By providing the inflation tube 7, the high-pressure gas can be regularly replenished in the gas storage chamber 12 to avoid gas leakage after long-term placement so that the fire extinguishing powder cannot be blown out, thereby improving the stability of the explosion-proof device and avoiding the occurrence of startup failure.

[0032] In more detail, in this embodiment, the anti-return structure 8 includes a baffle ring 81, a sealing head 82 abutting against the baffle ring 81 is provided in the inflation tube 7, a support frame 83 is provided in the inflation tube 7, a spring 84 is provided between the support frame 83 and the sealing head 82, and the sealing head 82 is supported by the spring 84 so as to abut against the baffle ring 81 to form a sealing structure, thereby preventing leakage of high-pressure gas. In some embodiments, the bottom of the sealing head 82 is fixedly provided with.

[0033] Working mode: When working, the receiving plate is pushed by the shock wave generated by the explosion to drive the slide bar 3 to move, push the trigger frame 14 to move, the sealing ring 17 is misaligned with the through hole group 16, and the high-pressure gas enters the trigger frame 14 along the through hole group 16-air guide hole group 15, and the fire extinguishing powder in the shell 11 is sprayed out to extinguish the fire to achieve automatic flame blocking and explosion isolation;

[0034] When the automatic explosion-proofing fails, the electronic control component 6 can be remotely controlled through the cloud platform, and the motor 61 can drive the screw 62 to rotate, so that the mounting ring 51 drives the sealing part 52 to move, and the sealing part 52 is separated from the inclined surface, so that the high-pressure gas can enter the trigger frame 14 along the through hole group 16-air guide hole group 15, and the fire extinguishing powder in the shell 11 is sprayed out to extinguish the fire.

[0035] 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. An electric-controlled automatic explosion-proof device for underground coal mines, comprising an explosion-proof body (1), a mounting frame (2), a slide bar (3) and a receiving plate, characterized in that: The slide bar (3) is arranged on one side of the flameproof body (1), an adjustment frame (4) is arranged on the slide bar (3), and the receiving plate is arranged on one side of the adjustment frame (4) and is fixedly connected to the receiving plate; The flameproof body (1) comprises a shell (11), a gas storage chamber (12) and a mounting frame (13); the gas storage chamber (12) is provided with high-pressure gas; a trigger frame (14) is slidably provided in the mounting frame (13); the trigger frame (14) is fixedly connected to the slide rod (3); and the shell (11) is filled with fire extinguishing powder; A sealing structure (5) is arranged inside the housing (11), and an electric control component (6) matching the sealing structure (5) is arranged on the housing (11), and the electric control component (6) is externally connected to a cloud platform via a wireless module.

2. The electric-controlled automatic explosion-proof device for underground coal mines according to claim 1, characterized in that: The outer wall of the trigger frame (14) is provided with a plurality of air guide hole groups (15), the installation frame (13) is provided with a plurality of through hole groups (16), and sealing rings (17) are provided between the air guide hole groups (15).

3. The electric-controlled automatic explosion-proof device for underground coal mines according to claim 1 is characterized in that: The sealing structure (5) comprises a mounting ring (51) slidably mounted on the outer wall of the mounting frame (13) and a sealing portion (52); the inner wall of the housing (11) is provided with an inclined surface, and the sealing portion (52) abuts against the inclined surface.

4. The electric-controlled automatic explosion-proof device for underground coal mines according to claim 3 is characterized in that: The electric control component (6) comprises a motor (61) fixedly arranged on the outer wall of the housing (11), the output shaft of the motor (61) is fixedly connected with a screw rod (62), and the screw rod (62) is threadedly connected to the mounting ring (51).

5. The electric-controlled automatic explosion-proof device for underground coal mines according to claim 1, characterized in that: The outer shell (11) is provided with an air filling tube (7), and the inner wall of the air filling tube (7) is provided with a non-return structure (8) for preventing high-pressure gas from overflowing.

6. The electric-controlled automatic explosion-proof device for underground coal mines according to claim 5, characterized in that: The anti-return structure (8) comprises a baffle ring (81), a sealing head (82) abutting against the baffle ring (81) is arranged in the inflation tube (7), a support frame (83) is arranged in the inflation tube (7), and a spring (84) is arranged between the support frame (83) and the sealing head (82).

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