A high-efficiency explosion-proof LED lighting device for coal mines

Abstract

The present invention relates to the technical field of coal mine lighting devices, and more specifically, to a high-efficiency explosion-proof LED lighting device for coal mines. The device comprises a detection lighting portion and an explosion-proof lighting portion. The detection lighting portion comprises a plurality of LED lighting lamps and a plurality of detection plates staggered along the length of the tunnel. The explosion-proof lighting portion comprises a mounting frame and an adjustable portion. The mounting frame is fixed to the top of the tunnel. The adjustable portion comprises an adjustable bracket, an explosion-proof portion connected to the adjustable bracket, and a guide light. The adjustable bracket is rotatably connected to the mounting frame. The explosion-proof portion comprises a filling plate and a plurality of filling tubes. The filling tubes are located at the front side of the filling plate. The interior of the explosion-proof portion is filled with fire extinguishing dry powder. When the detection plate is rotated by the impact of an explosion, the filling plate releases the fire extinguishing dry powder downward. The airflow generated during the release process pushes the adjustable bracket to rotate backward, causing the filling plate to release the fire extinguishing dry powder during the rotation process and sequentially form a deceleration layer, a fire extinguishing layer, and an interception layer.

Description

Technical Field

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

[0002] The underground environment of coal mines is complex, with the presence of flammable and explosive substances such as gas and coal dust. Traditional lighting equipment is easily damaged by the impact of explosions, and its functions are single, making it unable to effectively suppress the spread of explosions. Existing explosion-proof lighting devices usually only have simple protective functions, making it difficult to respond quickly when an explosion occurs and form an effective fire-extinguishing barrier. In addition, most devices lack the ability to actively detect explosion impacts and directional fire extinguishing, resulting in low fire extinguishing efficiency and an inability to effectively block the explosion shock wave and flame propagation. Therefore, there is an urgent need for an efficient explosion-proof LED lighting device that can detect explosion impacts in real time, quickly release fire extinguishing agents, and form a multi-layer protective barrier to improve the safety and emergency response capabilities of underground coal mines. Summary of the Invention

[0003] In order 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 the technical problem is: a high-efficiency explosion-proof LED lighting device for coal mines, comprising a detection lighting part and an explosion-proof lighting part, wherein the detection lighting part is located on a side of the explosion-proof lighting part close to the construction direction;

[0005] The detection lighting part includes a plurality of LED lighting lamps and a plurality of detection plates staggered along the length of the lane. The detection plates are rotatably connected to the top of the lane, and an angle sensor is provided at the connection between the detection plates and the lane.

[0006] The explosion-proof lighting part includes a mounting frame and an adjustable part. The mounting frame is fixed to the top of the tunnel. The adjustable part includes an adjustable bracket, an explosion-proof part connected to the adjustable bracket and a guide light. The adjustable bracket is rotatably connected to the mounting frame. The explosion-proof part includes a filling plate and several filling tubes. The filling tubes are located on the front side of the filling plate. The interior of the explosion-proof part is filled with fire-extinguishing dry powder. When the detection plate is rotated by the impact of the explosion, the filling plate 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 releases the fire-extinguishing dry powder during the rotation process and forms a deceleration layer, a fire extinguishing layer and a retention layer in sequence. The filling tube releases the impact column downward to form an impact column between the deceleration layer and the fire extinguishing layer, and between the fire extinguishing layer and the retention layer.

[0007] As an optimization, the adjustable bracket includes a support shaft and several connecting rods, the filling plate and several filling tubes are respectively connected to the outer ends of several connecting rods, the openings of the filling plate and the filling tube are set toward the construction direction, the filling plate is located on the lower side of the filling tube, and the guide light is located on the lower side of the connecting rod. Before the adjustable bracket rotates, the guide light shines downward, and when the adjustable bracket rotates downward under the action of airflow, the guide light shines toward the side away from the construction wind direction.

[0008] As an optimization, the interior of the filling plate 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, an ignition explosive is provided between the fire extinguishing dry powder and the sealing film, and the ignition explosive is equipped with a lighter;

[0009] The three layers of fire extinguishing dry powder are respectively an upper layer of fire extinguishing powder, a middle layer of fire extinguishing powder and a lower layer of fire extinguishing powder from top to bottom. An air flow hole is provided in the middle and lower parts of the side of the filling plate opposite to the filling tube. The two air flow holes correspond to the middle layer of fire extinguishing powder and the lower layer of fire extinguishing powder respectively.

[0010] As an optimization, the interior of the filling tube is filled with columnar fire extinguishing powder, and the top of the columnar fire extinguishing powder is provided with ignition explosives and a lighter.

[0011] As an optimization, an adjusting button is provided at the outer end of the support shaft, and the adjusting button is located on the outside of the mounting frame. A limiting wedge is configured on the outside of the mounting frame, and the limiting wedge is configured with a vertically arranged spring rod. The adjusting button is provided with three limiting slots, and the three limiting slots respectively correspond to the positions of the filling plate releasing the deceleration layer, the fire extinguishing layer and the retention layer. The limiting wedge is stuck in the limiting slot under the action of the spring rod.

[0012] As an optimization, the deceleration layer is sprayed obliquely downward toward the construction direction, and the retention layer is sprayed obliquely downward toward the side away from the construction direction.

[0013] As an optimization, a controller is further included, which is connected to the angle sensor and is used to execute commands to the explosion-proof part.

[0014] 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 tilted downward toward the construction direction. In the explosion-proof state, the filling plate rotates toward the side away from the construction direction. When the fire-extinguishing dry powder inside the filling plate is released, the two filling tubes release the fire-extinguishing dry powder.

[0015] The beneficial effects of this program are as follows:

[0016] This application monitors the explosion impact in real time by detecting the angle sensor of the lighting part. After detecting the impact, it can quickly trigger the release of fire extinguishing dry powder in the explosion-proof lighting part, achieving a rapid response and effectively suppressing the spread of the explosion;

[0017] The explosion-proof part releases fire-extinguishing dry powder through the filling plate and filling tube, accurately intercepting and directionally impacting the flames in the tunnel, effectively reducing the impact of the explosion accident, and reminding the staff in the rear through the guide light, guiding the staff to evacuate quickly and reduce the loss of the accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an axial side schematic diagram of the present invention.

[0019] Figure 2 It is a main schematic diagram of the present invention.

[0020] Figure 3 This is a schematic diagram of the axial side of the detection plate of the present invention.

[0021] Figure 4 This is a schematic diagram of the back axial side of the explosion-proof lighting part of the present invention.

[0022] Figure 5 This is an axial schematic diagram of the explosion-proof lighting part of the present invention.

[0023] Figure 6 This is a schematic diagram of the initial state of the explosion-proof lighting part of the present invention.

[0024] Figure 7 It is a schematic diagram of the main view of the explosion-proof lighting part of the present invention.

[0025] Figure 8 For the present invention Figure 7 AA cross-section structure diagram.

[0026] Figure 9 This is a schematic diagram of the explosion-proof lighting part of the present invention in use.

[0027] Figure 10 This is a schematic diagram of the explosion-proof state of the explosion-proof lighting part of the present invention.

[0028] Figure 11 This is a schematic diagram of the release direction of the fire extinguishing dry powder of the present invention.

[0029] Among them, 1. LED lighting, 2. detection plate, 3. mounting frame, 4. guide light, 5. filling plate, 6. filling tube, 7. deceleration layer, 8. fire extinguishing layer, 9. retention layer, 10. impact column, 11. support shaft, 12. connecting rod, 13. sealing membrane, 14. ignition explosive, 15. air flow hole, 16. upper layer fire extinguishing powder, 17. middle layer fire extinguishing powder, 18. lower layer fire extinguishing powder, 19. columnar fire extinguishing powder, 20. adjusting button, 21. limit wedge, 22. spring rod, 23. limit slot. DETAILED DESCRIPTION

[0030] like Figures 1-11 As shown, 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 the side of the explosion-proof lighting part close to the construction direction;

[0031] The detection lighting part includes a plurality of LED lighting lamps 1 and a plurality of detection plates 2 staggered along the length of the lane. The detection plates 2 are rotatably connected to the top of the lane, and an angle sensor is provided at the connection between the detection plates 2 and the lane.

[0032] 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 tunnel. The adjustable part includes an adjustable bracket, an explosion-proof part connected to the adjustable bracket and a guide light 4. The adjustable bracket is rotatably connected to the mounting frame 3. The explosion-proof part includes a filling plate 5 and several filling tubes 6. The filling tube 6 is 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 is rotated by the impact of the explosion, 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 the rotation process and forms a deceleration layer 7, a fire extinguishing layer 8 and a retention layer 9 in sequence. The filling tube 6 releases the impact column 10 downward, forming an impact column 10 between the deceleration layer 7 and the fire extinguishing layer 8, and between the fire extinguishing layer 8 and the retention layer 9.

[0033] LED lighting fixtures 1 and detection panels 2 are arranged in a staggered arrangement, with appropriate spacing based on factors such as tunnel length and sensor transmission speed. A recommended spacing of 3-5 meters is required to determine lighting coverage and blast impact detection requirements. Detection panel 2 is hingedly mounted, and a MEMS tilt sensor can be used for real-time monitoring of deflection angles caused by blast impact. Detection panel 2 is constructed of lightweight aluminum alloy with an antistatic coating. LED lighting fixtures 1 have an IP68 protection rating, ensuring stable operation in humid and dusty environments.

[0034] The fire extinguishing powder uses an ABC-class dry powder fire extinguishing agent (such as ammonium phosphate), suitable for coal mine gas and coal dust explosions. The warning light uses an explosion-proof LED light with a brightness of at least 2000 lumens to ensure clear visibility in smoke.

[0035] like Figure 4 As shown, the adjustable bracket includes a support shaft 11 and several connecting rods 12, the filling plate 5 and several filling tubes 6 are respectively connected to the outer ends of several connecting rods 12, the openings of the filling plate 5 and the filling tube 6 are set toward the construction direction, the filling plate 5 is located on the lower side of the filling tube 6, and the guide light 4 is located on the lower side of the connecting rod 12. Before the adjustable bracket rotates, the guide light 4 shines downward, and when the adjustable bracket rotates downward under the action of the airflow, the guide light 4 shines toward the side away from the construction wind direction.

[0036] Mounting frame 3 and the adjustable bracket are made of high-strength alloy steel. Mounting frame 3 is fixed to the tunnel roof with expansion screws to ensure structural stability. Stainless steel bearings connect the support shaft 11 to the mounting frame 3, ensuring flexible rotation. The filler plate 5 and filler tube 6 are bolted to the connecting rod 12, facilitating maintenance and replacement.

[0037] like Figure 7 and Figure 8 As shown, 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, and an ignition explosive 14 is provided between the fire extinguishing dry powder and the sealing film 13, and the ignition explosive 14 is equipped with a lighter;

[0038] The three layers of fire extinguishing dry powder are, from top to bottom, an upper layer of fire extinguishing powder 16, a middle layer of fire extinguishing powder 17 and a lower layer of fire extinguishing powder 18. An air flow hole 15 is provided in the middle and lower parts of the side opposite to the filling tube 6 of the filling plate 5. The two air flow holes 15 correspond to the middle layer of fire extinguishing powder 17 and the lower layer of fire extinguishing powder 18 respectively.

[0039] The ignition charge 14 is a small equivalent explosive that can explode and push the fire extinguishing powder outward. The lighter adopts a micro electric ignition device to ensure accurate detonation.

[0040] Since the three layers of fire extinguishing dry powder are pushed outwards for different lengths, the amount of ignition explosive 14 used to release the fire extinguishing dry powder is also slightly different to ensure that the fire extinguishing dry powder can be released outwards quickly and in a planar shape.

[0041] like Figure 8 As shown, the interior of the filling tube 6 is filled with columnar fire extinguishing powder 19 , and the top of the columnar fire extinguishing powder 19 is provided with ignition explosive 14 and a lighter.

[0042] An adjusting button 20 is provided at the outer end of the support shaft 11, and the adjusting button 20 is located on the outer side of the mounting frame 3. A limiting wedge 21 is provided on the outer side of the mounting frame 3, and the limiting wedge 21 is provided with a vertically arranged spring rod 22. The adjusting button 20 is provided with three limiting grooves 23, and the three limiting grooves 23 are respectively arranged to correspond to the positions of the filling plate 5 releasing the deceleration layer 7, the fire extinguishing layer 8 and the retention layer 9. The limiting wedge 21 is stuck in the limiting groove 23 under the action of the spring rod 22.

[0043] The deceleration layer 7 is sprayed obliquely downward toward the construction direction, and the retention layer 9 is sprayed obliquely downward toward a side away from the construction direction.

[0044] The device further comprises a controller connected to the angle sensor, and configured to execute commands to the explosion-proof part.

[0045] The adjustable part includes an initial state and an explosion-proof state. In the initial state, the opening of the filling plate 5 is tilted downward toward the construction direction. In the explosion-proof state, the filling plate 5 rotates toward the side away from the construction direction. When the fire extinguishing dry powder inside the filling plate 5 is released, the two filling tubes 6 release the fire extinguishing dry powder.

[0046] Directions:

[0047] When the device is used, the detection plate 2 is used to detect the explosion. 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.

[0048] The controller presets an angle threshold, and determines the explosion intensity. If the angle exceeds the set threshold, the explosion-proof lighting part is immediately triggered.

[0049] The ignition explosive 14 at the bottom of the filling plate 5 is detonated, and the lower layer of fire extinguishing powder 18 breaks through the sealing membrane 13 and releases a planar fire extinguishing dry powder deceleration layer 7 downward, weakening the shock wave generated by the explosion and preliminarily decelerating the flame generated by the explosion;

[0050] At the same time, due to the release of the lower layer of fire extinguishing powder 18, part of the lower layer of fire extinguishing powder 18 flows outward through the air flow holes 15, pushing the filling plate 5 to rotate backward, causing the filling plate 5 to rotate downward and backward;

[0051] Then, the middle layer of fire extinguishing powder 17 is released, so that the fire extinguishing powder forms a fire extinguishing layer 8 on the rear side of the deceleration layer 7, further preventing the spread of the flame.

[0052] As the fire extinguishing powder is released, the filling plate 5 continues to rotate backward, forming a retention layer 9 behind the fire extinguishing layer 8, further retaining the flames generated by the explosion and preventing the spread of residual fire. At the same time, the fire extinguishing powder in the two filling tubes 6 is released outward, releasing columnar fire extinguishing powder between the deceleration layer 7 and the fire extinguishing layer 8, and between the fire extinguishing layer 8 and the retention layer 9, respectively, to accurately strike the flames and improve the fire extinguishing and flame retardant effect.

[0053] As the adjustable bracket rotates, the guide light 4 automatically turns to the safe evacuation direction and flashes according to the set program to remind remote workers to evacuate in time to reduce accident losses.

[0054] When this application is used in practice, the release time and release interval of the fire extinguishing dry powder can be reasonably set according to the installation spacing of the detection part, the response time of the controller, etc.; and, according to the different lengths of the tunnel, multiple groups of this device can be set along the tunnel to perform multi-stage and efficient interception of the flame inside the tunnel, thereby reducing the spread of the fire and reducing accident losses.

[0055] The above-mentioned 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 form and style of the above-mentioned specific embodiments. Any high-efficiency explosion-proof LED lighting device for coal mines that complies with the claims of the present invention and any appropriate changes or modifications made thereto by ordinary technicians in the corresponding technical field shall fall within the patent protection scope of the present invention.

Claims

1. A high-efficiency explosion-proof LED lighting device for coal mines, characterized by: It includes a detection lighting part and an explosion-proof lighting part, wherein the detection lighting part is located on the side of the explosion-proof lighting part close to the construction direction; The detection lighting part comprises a plurality of LED lighting lamps (1) staggered along the length direction of the lane and a plurality of detection plates (2), the detection plates (2) being rotatably connected to the top of the lane, and an angle sensor being provided at the connection between the detection plates (2) and the lane; 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 tunnel, the adjustable part includes an adjustable bracket, an explosion-proof part connected to the adjustable bracket and a guide light (4), the adjustable bracket is rotatably connected to the mounting frame (3), the explosion-proof part includes a filling plate (5) and a plurality 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) is subjected to the explosion impact, the explosion-proof part is filled with fire extinguishing dry powder, and the explosion-proof part is filled with fire extinguishing dry powder. During rotation, if the angle exceeds a set threshold, the explosion-proof lighting part is immediately triggered, and the filling plate (5) releases the fire extinguishing 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 powder during the rotation process and sequentially forms a deceleration layer (7), a fire extinguishing layer (8) and a retention layer (9). The filling pipe (6) releases an impact column (10) downward, forming an impact column (10) between the deceleration layer (7) and the fire extinguishing layer (8), and between the fire extinguishing layer (8) and the retention layer (9).

2. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 1, characterized in that: The adjustable bracket includes a support shaft (11) and a plurality of connecting rods (12); the filling plate (5) and the plurality of filling tubes (6) are respectively connected to the outer ends of the plurality of connecting rods (12); the openings of the filling plate (5) and the filling tube (6) are arranged toward the construction direction; the filling plate (5) is located on the lower side of the filling tube (6); the guide light (4) is located on the lower side of the connecting rod (12); before the adjustable bracket rotates, the guide light (4) is directed downward; when the adjustable bracket rotates downward under the action of airflow, the guide light (4) is directed 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, characterized in that: 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), an ignition explosive (14) is provided between the fire extinguishing dry powder and the sealing film (13), and the ignition explosive (14) is equipped with a lighter; The three layers of fire extinguishing dry powder are respectively an upper layer of fire extinguishing powder (16), a middle layer of fire extinguishing powder (17) and a lower layer of fire extinguishing powder (18) from top to bottom. An air flow hole (15) is provided in the middle and lower parts of the side opposite to the filling tube (6) of the filling plate (5). The two air flow holes (15) correspond to the middle layer of fire extinguishing powder (17) and the lower layer of fire extinguishing powder (18) respectively.

4. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 1, characterized in that: The interior of the filling tube (6) is filled with columnar fire extinguishing powder (19), and the top of the columnar fire extinguishing powder (19) is provided with ignition explosive (14) and a lighter.

5. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 2, characterized in that: The outer end of the support shaft (11) is provided with an adjusting button (20), and the adjusting button (20) is located on the outer side of the mounting frame (3). The outer side of the mounting frame (3) is provided with a limiting wedge (21), and the limiting wedge (21) is provided with a vertically arranged spring rod (22). The adjusting button (20) is provided with three limiting grooves (23), and the three limiting grooves (23) are respectively arranged corresponding to the positions of the filling plate (5) releasing the deceleration layer (7), the fire extinguishing layer (8) and the retention layer (9). The limiting wedge (21) is stuck in the limiting groove (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, characterized in that: The deceleration layer (7) is sprayed obliquely downward toward the construction direction, and the retention layer (9) is sprayed obliquely downward toward the side away from the construction direction.

7. The high-efficiency explosion-proof LED lighting device for coal mines according to claim 1, characterized in that: The device further comprises a controller connected to the angle sensor, and configured to execute commands to the explosion-proof part.

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

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