Efficient explosion-proof LED lighting device for coal mine

Abstract

The invention relates to the technical field of coal mine lighting devices, in particular to an efficient explosion-proof LED lighting device for a coal mine. Comprising a detection lighting part and an anti-explosion lighting part, and the detection lighting part comprises a plurality of LED lighting lamps and a plurality of detection plates which are arranged in a staggered mode in the length direction of a roadway; the anti-explosion lighting part comprises a mounting frame and an adjustable part, the mounting frame is fixed to the top of a roadway, the adjustable part comprises an adjustable support, an anti-explosion part connected to the adjustable support and a guide lamp, the adjustable support is rotationally connected with the mounting frame, the anti-explosion part comprises a filling plate and a plurality of filling pipes, and the filling pipes are located on the front side of the filling plate; the explosion-proof part is filled with fire extinguishing dry powder, when the detection plate rotates due to explosion impact, the filling plate releases the fire extinguishing dry powder downwards, airflow generated in the releasing process pushes the adjustable support to rotate backwards, the filling plate releases the fire extinguishing dry powder in the rotating process, and a speed reduction layer, a fire extinguishing layer and an interception layer are sequentially formed.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine lighting devices, and specifically, it is a high-efficiency explosion-proof LED lighting device for coal mines. Background Art

[0002] The environment in coal mine shafts is complex, with flammable and explosive substances such as gas and coal dust. Traditional lighting equipment is prone to damage under explosion shocks, and has a single function, unable to effectively inhibit the spread of explosions. Existing explosion-proof lighting devices usually only have simple protection functions, and it is difficult to quickly respond and form an effective fire extinguishing barrier when an explosion occurs. In addition, most devices lack the ability to actively detect explosion shocks and direct fire extinguishing, resulting in low fire extinguishing efficiency and unable to effectively block the spread of explosion shock waves and flames. Therefore, there is an urgent need for a high-efficiency explosion-proof LED lighting device that can detect explosion shocks in real time, quickly release fire extinguishing agents, and form a multi-layer protection barrier to improve the safety and emergency response capabilities in coal mine shafts. Summary of the Invention

[0003] To solve the above problems, the present invention provides a high-efficiency explosion-proof LED lighting device for coal mines.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a high-efficiency explosion-proof LED lighting device for coal mines, including a detection and lighting part and an explosion-proof lighting part. The detection and lighting part is located on the side of the explosion-proof lighting part close to the construction direction; The detection and lighting part includes a plurality of LED lighting lamps and a plurality of detection plates arranged alternately along the length direction of the roadway. The detection plates are rotatably connected to the top of the roadway, and an angle sensor is provided at the connection between the detection plates and the roadway; The explosion-proof lighting part includes a mounting frame and an adjustable part. The mounting frame is fixed to the top of the roadway. The adjustable part includes an adjustable bracket, an explosion-proof part connected to the adjustable bracket, and a guiding lamp. The adjustable bracket is rotatably connected to the mounting frame. The explosion-proof part includes a filling plate and a plurality of filling tubes. The filling tubes are located in front of the filling plate. The interior of the explosion-proof part is filled with fire extinguishing powder. When the detection plate rotates under the impact of an explosion, the filling plate releases the fire extinguishing powder downward, and at the same time, the airflow generated during the release process pushes the adjustable bracket to rotate backward, so that the filling plate releases the fire extinguishing powder during rotation and successively forms a deceleration layer, a fire extinguishing layer, and an interception layer. The filling tubes release impact columns downward, and impact columns are formed between the deceleration layer and the fire extinguishing layer, and between the fire extinguishing layer and the interception layer.

[0005] As an optimization, the adjustable bracket includes a support shaft and a plurality of connecting rods. The filling plate and a plurality of filling tubes are respectively connected to the outer ends of the plurality of connecting rods. The openings of the filling plate and the filling tubes are arranged facing the construction direction. The filling plate is located below the filling tubes. The guiding lamp is located below the connecting rods. Before the adjustable bracket rotates, the guiding lamp shines downward. When the adjustable bracket rotates downward under the action of air flow, the guiding lamp shines toward the side away from the construction wind direction.

[0006] As an optimization, at least three layers of fire extinguishing powder are filled inside the filling plate. Each layer of the fire extinguishing powder is separated by a sealing film. Ignition explosives are arranged between the fire extinguishing powder and the sealing film. The ignition explosives are configured with a lighter. The three layers of the fire extinguishing powder are respectively the upper-layer fire extinguishing powder, the middle-layer fire extinguishing powder, and the lower-layer fire extinguishing powder from top to bottom. An air flow hole is arranged in the middle and lower parts of one side of the filling plate opposite to the filling tube. The two air flow holes respectively correspond to the middle-layer fire extinguishing powder and the lower-layer fire extinguishing powder.

[0007] As an optimization, columnar fire extinguishing powder is filled inside the filling tube. Ignition explosives and a lighter are configured at the top of the columnar fire extinguishing powder.

[0008] As an optimization, an adjustment knob is arranged at the outer end of the support shaft. The adjustment knob is located outside the mounting frame. A limit wedge is configured outside the mounting frame. The limit wedge is configured with a vertically arranged spring rod. Three limit slots are opened in the adjustment knob. The three limit slots are respectively arranged corresponding to the positions where the filling plate releases the deceleration layer, the fire extinguishing layer, and the interception layer. The limit wedge is stuck in the limit slot under the action of the spring rod.

[0009] As an optimization, the deceleration layer sprays obliquely downward toward the construction direction, and the interception layer sprays obliquely downward toward the side away from the construction direction.

[0010] As an optimization, it further includes a controller. The controller is connected to the angle sensor. The controller is used to execute commands for the explosion-proof part.

[0011] As an optimization, the adjustable part includes an initial state and an explosion-proof state. In the initial state, the opening of the filling plate is arranged obliquely downward facing the construction direction. In the explosion-proof state, the filling plate rotates toward the side away from the construction direction. After the fire extinguishing powder inside the filling plate is released completely, the two filling tubes release the fire extinguishing powder.

[0012] The beneficial effects of this solution are as follows: In this application, the explosion shock is monitored in real time by the angle sensor of the lighting part. After the shock is detected, the fire extinguishing powder release of the explosion-proof lighting part can be quickly triggered, achieving a quick response and effectively suppressing the spread of the explosion. The explosion-proof part releases fire extinguishing dry powder through the filling plate and filling pipe, precisely intercepts and directionally impacts the flames in the roadway, effectively reducing the impact caused by deflagration accidents, and reminds the staff behind through the guiding light, guiding the staff to evacuate quickly and reducing accident losses. Brief Description of the Drawings

[0013] Figure 1 Isometric schematic diagram of the present invention.

[0014] Figure 2 Front view schematic diagram of the present invention.

[0015] Figure 3 Isometric schematic diagram of the detection plate of the present invention.

[0016] Figure 4 Isometric schematic diagram of the back of the explosion-proof lighting part of the present invention.

[0017] Figure 5 Isometric schematic diagram of the explosion-proof lighting part of the present invention.

[0018] Figure 6 Schematic diagram of the initial state of the explosion-proof lighting part of the present invention.

[0019] Figure 7 Front view schematic diagram of the explosion-proof lighting part of the present invention.

[0020] Figure 8 For the present invention Figure 7 Schematic diagram of the A-A sectional structure.

[0021] Figure 9 Schematic diagram of the usage state of the explosion-proof lighting part of the present invention.

[0022] Figure 10 Schematic diagram of the explosion-proof state of the explosion-proof lighting part of the present invention.

[0023] Figure 11 Schematic diagram of the release direction of the fire extinguishing dry powder of the present invention.

[0024] Among them, 1. LED lighting lamp, 2. Detection plate, 3. Mounting bracket, 4. Guiding light, 5. Filling plate, 6. Filling pipe, 7. Deceleration layer, 8. Fire extinguishing layer, 9. Interception layer, 10. Impact column, 11. Support shaft, 12. Connecting rod, 13. Sealing film, 14. Ignited explosive, 15. Air flow hole, 16. Upper layer of fire extinguishing powder, 17. Middle layer of fire extinguishing powder, 18. Lower layer of fire extinguishing powder, 19. Columnar fire extinguishing powder, 20. Adjusting knob, 21. Limiting wedge, 22. Spring rod, 23. Limiting groove. Detailed Embodiments

[0025] Such as Figures 1-11As shown in the figure, a high-efficiency explosion-proof LED lighting device for coal mines includes a detection lighting part and an explosion-proof lighting part. The detection lighting part is located on one side of the explosion-proof lighting part close to the construction direction. The detection lighting part includes a number of LED lighting lamps 1 and a number of detection plates 2 arranged alternately along the length direction of the roadway. The detection plates 2 are rotatably connected to the top of the roadway, and an angle sensor is provided at the connection between the detection plates 2 and the roadway. The explosion-proof lighting part includes a mounting frame 3 and an adjustable part. The mounting frame 3 is fixed to the top of the roadway. The adjustable part includes an adjustable bracket, an explosion-proof part connected to the adjustable bracket, and a guiding lamp 4. The adjustable bracket is rotatably connected to the mounting frame 3. The explosion-proof part includes a filling plate 5 and a number of filling tubes 6. The filling tubes 6 are located on the front side of the filling plate 5. The interior of the explosion-proof part is filled with fire extinguishing dry powder. When the detection plate 2 rotates due to an explosion shock, the filling plate 5 releases the fire extinguishing dry powder downward, and at the same time, the airflow generated during the release process pushes the adjustable bracket to rotate backward, so that the filling plate 5 releases the fire extinguishing dry powder during the rotation process and successively forms a deceleration layer 7, a fire extinguishing layer 8, and an interception layer 9. The filling tubes 6 release impact columns 10 downward, and impact columns 10 are formed between the deceleration layer 7 and the fire extinguishing layer 8, and between the fire extinguishing layer 8 and the interception layer 9.

[0026] The LED lighting lamps 1 and the detection plates 2 are arranged alternately. A reasonable spacing is set according to the length of the roadway, the propagation speed of the sensor, etc. The spacing is recommended to be 3 - 5m to determine the lighting coverage and the explosion shock detection requirements. The detection plates 2 are installed in a hinge type, and the angle sensor can adopt a MEMS inclination sensor to monitor the deflection angle caused by the explosion shock in real time. The detection plates 2 are made of lightweight aluminum alloy and are coated with an anti-static coating on the surface; the LED lighting lamps 1 adopt an IP68 protection level to ensure stable operation in a humid and dusty environment.

[0027] The fire extinguishing dry powder adopts ABC-class dry powder fire extinguishing agent (such as ammonium phosphate), which is suitable for coal mine gas and coal dust explosions. The warning lamp adopts an explosion-proof LED lamp with a brightness of not less than 2000 lumens to ensure clear visibility in the smoke.

[0028] As Figure 4 shown, the adjustable bracket includes a support shaft 11 and a number of connecting rods 12. The filling plate 5 and a number of filling tubes 6 are respectively connected to the outer ends of the number of connecting rods 12. The openings of the filling plate 5 and the number of filling tubes 6 are arranged towards the construction direction. The filling plate 5 is located below the filling tubes 6. The guiding lamp 4 is located below the connecting rods 12. Before the adjustable bracket rotates, the guiding lamp 4 irradiates downward. When the adjustable bracket rotates downward under the action of the airflow, the guiding lamp 4 irradiates towards the side away from the construction wind direction.

[0029] The mounting bracket 3 and the adjustable bracket are made of high-strength alloy steel. The mounting bracket 3 is fixed to the top of the roadway by expansion bolts to ensure stable structure. The support shaft 11 is connected to the mounting bracket 3 through a stainless-steel bearing to ensure flexible rotation. The filling plate 5 and the filling pipe 6 are fixed to the connecting rod 12 by means of bolts, which is convenient for maintenance and replacement.

[0030] As Figure 7 and Figure 8 shown, at least three layers of fire extinguishing powder are filled inside the filling plate 5. Each layer of the fire extinguishing powder is separated by a sealing film 13. An ignition explosive 14 is arranged between the fire extinguishing powder and the sealing film 13. The ignition explosive 14 is equipped with a lighter. The three layers of fire extinguishing powder are respectively the upper-layer fire extinguishing powder 16, the middle-layer fire extinguishing powder 17 and the lower-layer fire extinguishing powder 18 from top to bottom. An air flow hole 15 is arranged in the middle and lower parts of one side of the filling plate 5 opposite to the filling pipe 6. The two air flow holes 15 respectively correspond to the middle-layer fire extinguishing powder 17 and the lower-layer fire extinguishing powder 18.

[0031] The ignition explosive 14 is a small-equivalent explosive, which can explode and push the fire extinguishing powder outwards. The lighter adopts a micro electric ignition device to ensure accurate detonation.

[0032] Since the path lengths for the three layers of fire extinguishing powder to be pushed outwards are different, there are slight differences in the dosage of the ignition explosive 14 used to release the fire extinguishing powder, so as to ensure that the fire extinguishing powder can be quickly released outwards in a planar shape.

[0033] As Figure 8 shown, the inside of the filling pipe 6 is filled with columnar fire extinguishing powder 19. The top of the columnar fire extinguishing powder 19 is equipped with an ignition explosive 14 and a lighter.

[0034] An adjustment knob 20 is arranged at the outer end of the support shaft 11. The adjustment knob 20 is located outside the mounting bracket 3. A limiting wedge 21 is arranged outside the mounting bracket 3. The limiting wedge 21 is equipped with a vertically arranged spring rod 22. Three limiting grooves 23 are opened on the adjustment knob 20. The three limiting grooves 23 are respectively arranged corresponding to the positions where the filling plate 5 releases the deceleration layer 7, the fire extinguishing layer 8 and the interception layer 9. The limiting wedge 21 is stuck in the limiting groove 23 under the action of the spring rod 22.

[0035] The deceleration layer 7 sprays obliquely downwards towards the construction direction, and the interception layer 9 sprays obliquely downwards towards the side away from the construction direction.

[0036] It also includes a controller, which is connected to the angle sensor, and the controller is used to execute commands for the explosion-proof part.

[0037] The adjustable part includes an initial state and an explosion-proof state. In the initial state, the opening of the filling plate 5 is inclined downward towards the construction direction. In the explosion-proof state, the filling plate 5 rotates towards the side away from the construction direction. When the fire extinguishing dry powder inside the filling plate 5 is completely released, the two filling pipes 6 release the fire extinguishing dry powder.

[0038] Usage method: When the device is in specific use, first, the explosion is detected by the detection plate 2. For example, when an explosion occurs in a coal mine, the shock wave generated by the explosion will push the detection plate 2 to deflect. After the angle sensor detects the deflection signal, it transmits the deflection signal to the controller. The angle threshold is preset through the controller. The controller judges the explosion intensity. If it exceeds the set angle threshold, the explosion-proof lighting part is immediately triggered. The ignited explosive 14 at the lowermost part inside the filling plate 5 is detonated. The lower-layer fire extinguishing powder 18 breaks through the sealing film 13 and releases a planar fire extinguishing dry powder deceleration layer 7 downward, weakening the shock wave generated by the explosion and initially decelerating the flame generated by the explosion. Meanwhile, due to the release of the lower-layer fire extinguishing powder 18, part of the lower-layer fire extinguishing powder 18 flows outwards through the air flow holes 15, pushing the filling plate 5 to rotate backward, causing the filling plate 5 to rotate downward and backward. Then the middle-layer fire extinguishing powder 17 is released, so that the fire extinguishing dry powder forms a fire extinguishing layer 8 at the rear side of the deceleration layer 7, further preventing the spread of the flame. As the fire extinguishing dry powder is released, the filling plate 5 continues to rotate backward, forming an interception layer 9 at the rear side of the fire extinguishing layer 8, further intercepting the flame generated by the explosion and preventing the spread of the residual fire. At the same time, the fire extinguishing dry powder inside the two filling pipes 6 is released outwards, and columnar fire extinguishing dry powder is released respectively between the deceleration layer 7 and the fire extinguishing layer 8, and between the fire extinguishing layer 8 and the interception layer 9, precisely hitting the flame and improving the fire extinguishing and flame retardant effect. While the adjustable support rotates, the guiding lamp 4 automatically turns towards the safe evacuation direction and flashes according to the set program, reminding the staff in the distance to evacuate immediately and reducing the accident losses.

[0039] When this application is in specific use, the release time and release interval of the fire extinguishing dry powder can be reasonably set according to different installation spacings of the detection part, response time of the controller, etc. And, according to different roadway lengths, multiple groups of this device can be arranged along the roadway to conduct multi-segment and efficient interception of the flame inside the roadway, reduce the spread of the fire, and reduce the accident losses.

[0040] The above specific embodiments are only specific cases of the present invention. The patent protection scope of the present invention includes, but is not limited to, the product forms and styles of the above specific embodiments. Any high-efficiency explosion-proof LED lighting device for coal mines that conforms to the claims of the present invention and any appropriate changes or modifications made by those of ordinary skill in the relevant technical fields shall fall within the patent protection scope of the present invention.

Claims

1. An efficient explosion-proof LED lighting device for coal mines, characterized in that: It includes a detection lighting part and an explosion-proof lighting part, and the detection lighting part is located on one side of the explosion-proof lighting part close to the construction direction; The detection lighting part includes a number of LED lighting lamps (1) and a number of detection plates (2) arranged alternately along the length direction of the roadway. The detection plate (2) is rotatably connected to the top of the roadway, and an angle sensor is provided at the connection of the detection plate (2) and the roadway; The explosion-proof lighting part includes a mounting frame (3) and an adjustable part. The mounting frame (3) is fixed to the top of the roadway. The adjustable part includes an adjustable bracket, an explosion-proof part connected to the adjustable bracket, and a guiding lamp (4). The adjustable bracket is rotatably connected to the mounting frame (3). The explosion-proof part includes a filling plate (5) and a number of filling tubes (6). The filling tubes (6) are located on the front side of the filling plate (5). The interior of the explosion-proof part is filled with fire extinguishing dry powder. When the detection plate (2) rotates due to an explosion shock, the filling plate (5) releases the fire extinguishing dry powder downward. At the same time, the airflow generated during the release process pushes the adjustable bracket to rotate backward, so that the filling plate (5) releases the fire extinguishing dry powder during rotation and successively forms a deceleration layer (7), a fire extinguishing layer (8), and an interception layer (9). The filling tubes (6) release impact columns (10) downward, and impact columns (10) are formed between the deceleration layer (7) and the fire extinguishing layer (8), and between the fire extinguishing layer (8) and the interception layer (9).

2. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 1, wherein: The adjustable bracket includes a support shaft (11) and a number of connecting rods (12). The filling plate (5) and a number of filling tubes (6) are respectively connected to the outer ends of the number of connecting rods (12). The openings of the filling plate (5) and the filling tubes (6) are arranged toward the construction direction. The filling plate (5) is located below the filling tubes (6). The guiding lamp (4) is located below the connecting rods (12). Before the adjustable bracket rotates, the guiding lamp (4) irradiates downward. When the adjustable bracket rotates downward under the action of the airflow, the guiding lamp (4) irradiates toward the side away from the construction wind direction.

3. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 1, wherein: The interior of the filling plate (5) is filled with at least three layers of fire extinguishing dry powder. Each layer of the fire extinguishing dry powder is separated by a sealing film (13). Ignition explosives (14) are provided between the fire extinguishing dry powder and the sealing film (13), and the ignition explosives (14) are equipped with lighters; The three layers of the fire extinguishing dry powder are respectively the upper-layer fire extinguishing powder (16), the middle-layer fire extinguishing powder (17), and the lower-layer fire extinguishing powder (18) from top to bottom. An air flow hole (15) is provided in the middle and lower parts of one side of the filling plate (5) opposite to the filling tubes (6), and the two air flow holes (15) respectively correspond to the middle-layer fire extinguishing powder (17) and the lower-layer fire extinguishing powder (18).

4. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 1, wherein: The interior of the filling tube (6) is filled with columnar fire extinguishing powder (19), and ignition explosives (14) and lighters are arranged at the top of the columnar fire extinguishing powder (19).

5. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 2, wherein: An adjustment knob (20) is provided at the outer end of the support shaft (11). The adjustment knob (20) is located outside the mounting bracket (3). A limit wedge block (21) is arranged outside the mounting bracket (3). The limit wedge block (21) is provided with a vertically arranged spring rod (22). The adjustment knob (20) is provided with three limit slots (23), and the three limit slots (23) are respectively arranged corresponding to the positions where the filling plate (5) releases the deceleration layer (7), the fire extinguishing layer (8) and the interception layer (9). The limit wedge block (21) is stuck in the limit slot (23) under the action of the spring rod (22).

6. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 1, wherein: The deceleration layer (7) sprays obliquely downward towards the construction direction, and the interception layer (9) sprays obliquely downward towards the side away from the construction direction.

7. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 1, wherein: It further includes a controller, the controller is connected to the angle sensor, and the controller is used to execute commands for the explosion-proof part.

8. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 1, wherein: The adjustable part includes an initial state and an explosion-proof state. In the initial state, the opening of the filling plate (5) is arranged obliquely downward towards the construction direction. In the explosion-proof state, the filling plate (5) rotates towards the side away from the construction direction. When the fire extinguishing dry powder inside the filling plate (5) is completely released, the two filling pipes (6) release the fire extinguishing dry powder.

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