A mobile coal mine airflow monitoring and risk avoidance device

Abstract

The invention discloses a mobile coal mine airflow monitoring and risk avoidance device, which relates to an airflow detection device, comprising a base plate, an airflow device is fixedly installed on the base plate, the airflow device comprises a pipeline, the pipeline is fixedly installed on the base plate, a plurality of fan slide bars are fixedly installed on one end of the pipeline, a pipeline bracket is fixedly installed on the other end of the fan slide bar, the pipeline bracket is fixedly installed on the base plate, a fan blade screw rod is rotatably installed on the fan blade screw rod, the fan blade screw rod is rotatably connected to the pipeline, a fan blade cover is cooperatively installed on the fan blade screw rod, the fan blade cover is also slidably installed on the fan slide bar, a fan motor is fixedly installed on the fan blade cover, a fan blade is fixedly installed on the output shaft of the fan motor, and the detection range and detection speed of the device are changed by driving the movement of the fan blade cover.

Description

Technical Field

[0001] The invention relates to an airflow detection device, in particular to a mobile coal mine airflow monitoring and risk avoidance device. Background Art

[0002] Coal mines are areas where humans exploit coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, people generally choose to dig tunnels underground to mine coal. This is an underground coal mine. When the coal seam is very close to the surface, people generally choose to directly strip off the surface soil layer to mine coal. This is an open-pit coal mine. In my country, most coal mines are underground coal mines. The scope of coal mines includes a large area above and below the ground and related facilities. Coal mines are reasonable spaces excavated by humans when excavating geological strata rich in coal, usually including tunnels, shafts, mining faces, etc. Coal is the main solid fuel and a type of combustible organic rock. Coal mines are very dangerous when mining. If the ventilation in the mine is not smooth, the hydrogen sulfide or other harmful substances deposited with the coal mine will be emitted into the air, causing poisoning or explosion of the miners, threatening the lives of the workers.

[0003] A Chinese invention with publication number CN114183189A discloses a mine safety shelter, including a supporting shell, inside which there are an automatic packing toilet, an oxygen breathing device, a communication device, a toilet storage box and a replacement device, and a ventilation system. However, the prior art does not have the function of detecting harmful gases and can only be placed in a fixed position, so people who are far away from the device have no chance to use it. Summary of the invention

[0004] The technical problem to be solved by the present invention is to solve the function of detecting harmful gases, and at the same time, during the working process of the device, it is necessary to provide help and protection to people nearby the harmful gas area.

[0005] In view of the above technical problems, the present invention proposes the following technical solutions: a mobile coal mine airflow monitoring and risk avoidance device, comprising a base plate, an airflow device is fixedly installed on the base plate, an anti-poison device is also fixedly installed on the base plate, the airflow device comprises a pipeline, the pipeline is fixedly installed on the base plate, a plurality of fan slides are fixedly installed on one end of the pipeline, a pipeline bracket is fixedly installed on the other end of the fan slide, the pipeline bracket is fixedly installed on the base plate, a fan blade screw is rotatably installed on the pipeline bracket, the fan blade screw is rotatably connected to the pipeline, a fan blade cover is cooperated with the fan blade screw, the fan blade cover is also slidably installed on the fan slide, a fan motor is fixedly installed on the fan blade cover, a fan blade is fixedly installed on the output shaft of the fan motor, an angle control cover is also slidably installed on the pipeline, a cylinder rod is fixedly installed on the angle control cover, a sliding cylinder is fixedly installed on the cylinder rod, the sliding cylinder is fixedly installed on the base plate, and a plurality of angle rods are fixedly installed on the angle control cover.

[0006] Furthermore, the anti-gas device includes an electrically controlled clutch box, which is fixedly mounted on the base plate, and a pulley is fixedly mounted on the output shaft of the clutch box away from the angle control cover, and a transmission belt is arranged on the pulley. A protection box is also fixedly mounted on the base plate, and a number of gas masks are placed in the protection box, and an exit channel for the gas masks is also arranged in the protection box. A transmission device is fixedly mounted on the input shaft of the clutch box close to the angle control cover, and a transmission shaft for transmission is fixedly mounted on the other end of the transmission device, and the transmission shaft is rotatably mounted on the protection box. A transmission device is also fixedly mounted on the transmission shaft, and a friction wheel for driving is fixedly mounted on the other end of the transmission device, and the friction wheel is rotatably mounted on a fixed bracket, and the fixed bracket is fixedly mounted on the base plate to support the friction wheel.

[0007] Furthermore, a swing motor is fixedly mounted on the bottom plate, a swing rod is rotatably mounted on the swing motor, a control panel for guiding the wind direction is rotatably mounted on the swing rod, and the control panel is rotatably mounted on the bottom plate.

[0008] Furthermore, a sliding ring is fixedly mounted on the angle rod, a tensioning and closing rod for support is slidably mounted on the sliding ring, the tensioning and closing rod is rotatably mounted on the pipeline, and a beam cover is fixedly mounted on the tensioning and closing rod.

[0009] Furthermore, an external detection device is fixedly installed on one end of the pipeline away from the axis and close to the pipeline support, and an internal detection device is fixedly installed on one end of the pipeline close to the axis and away from the pipeline support.

[0010] Furthermore, a protruding block is provided on the conveyor belt for supporting the gas mask.

[0011] Furthermore, the beam cover is made of rubber and is in a truncated cone shape.

[0012] Compared with the prior art, the advantages of the present invention are as follows: (1) the problem of the device being unable to move in a mine is solved by driving the rollers and the fan blades; (2) the presence of harmful substances in the air in the mine is detected by two internal and external detection devices; (3) assistance is provided to the workers in the mine through the gas masks in the protective box; and (4) the device can be moved freely in the mine by rotating the control panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is the structure and schematic diagram of the airflow device of the present invention.

[0015] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0016] Figure 4 It is a schematic diagram of the structure of the anti-virus device of the present invention.

[0017] Figure 5 Schematic diagram of the internal structure of the airflow device of the present invention.

[0018] Description of the drawings: 1-base plate; 2-airflow device; 3-anti-gas device; 101-control panel; 102-swing rod; 103-swing motor; 201-pipe support; 202-blade screw rod; 203-blade cover; 204-blade; 205-pipeline; 206-angle control cover; 207-cylinder rod; 208-angle rod; 209-opening and closing rod; 210-sliding ring; 211-beam cover; 212-fan slide rod; 213-fan motor; 214-sliding cylinder; 215-external detection device; 216-internal detection device; 301-pulley; 302-transmission device; 303-transmission shaft; 304-friction wheel; 305-fixed bracket; 306-transmission device; 307-protection box; 308-gas mask; 309-transmission belt; 310-slider; 311-clutch box. DETAILED DESCRIPTION

[0019] like Figure 1 , Figure 2 As shown, a plurality of rollers for moving the device are fixedly mounted on the base plate 1, a swing motor 103 is fixedly mounted on the base plate 1, a swing rod 102 is rotatably mounted on the swing motor 103, a control panel 101 for guiding the wind direction is rotatably mounted on the swing rod 102, and the control panel 101 is rotatably mounted on the base plate 1.

[0020] like Figure 1 , Figure 2 , Figure 5 As shown, an airflow device 2 is also fixedly installed on the base plate 1, and the airflow device 2 includes a pipe bracket 201 for supporting, and a mobile motor is fixedly installed on the pipe bracket 201. A fan blade screw 202 is rotatably installed on the pipe bracket 201, and one end of the fan blade screw 202 is fixedly connected to the output shaft of the mobile motor. A plurality of fan slides 212 for supporting the fan blade cover 203 are also slidably installed on the fan cover 203, and the fan slide 212 is fixedly installed on the pipe bracket 201, and a pipe 205 is fixedly installed on the other end of the fan slide 212. The pipe 205 is fixedly installed on the base plate 1, and an external detection device 215 is fixedly installed on one end of the pipe 205 close to the pipe bracket 201 and away from the axis of the pipe 205. An internal detection device 216 is also fixedly installed on one side of the pipe 205 away from the end of the pipe bracket 201 and close to the axis. Both the external detection device 215 and the internal detection device 216 are devices for detecting whether there is harmful gas in the airflow.

[0021] like Figure 2 , Figure 3 , Figure 5 As shown, a fan motor 213 is also fixedly mounted on the fan cover 203, and a fan blade 204 for making air flow is fixedly mounted on the output shaft of the fan motor 213. The rotation of the fan blade 204 can drive the gas around the fan cover 203 and send it into the pipe 205. A sliding cylinder 214 is fixedly mounted on the bottom plate 1, and a cylinder rod 207 is fixedly mounted on the other end of the sliding cylinder 214. An angle control cover 206 is fixedly mounted on the cylinder rod 207. The angle control cover 206 is slidably mounted on the pipe 205. A plurality of angle rods 208 are fixedly mounted on the angle control cover 206. A sliding ring 210 is fixedly mounted on the angle rod 208. A tensioning rod 209 for support is slidably mounted on the sliding ring 210. The tensioning rod 209 is rotatably mounted on the pipe 205. A beam cover 211 is fixedly mounted on the tensioning rod 209. The beam cover 211 is made of rubber and is truncated.

[0022] like Figure 2 , Figure 4As shown, an electrically controlled clutch box 311 is fixedly mounted on the bottom plate 1, and the clutch box 311 is controlled by the external detection device 215 and the internal detection device 216. A pulley 301 is fixedly mounted on the output shaft of the clutch box 311 away from the angle control cover 206, and a transmission belt 309 is arranged on the pulley 301. The transmission belt 309 is provided with a protruding block for carrying out objects. A protective box 307 for storing and preventing foreign matter and dust is also fixedly mounted on the bottom plate 1. The protective box 307 7, a plurality of gas masks 308 are placed in the protective box 307. Since the protective box 307 is set as a box with a slope, the gas masks 308 will slide toward the pulley 301 due to gravity. The protective box 307 is also provided with an exit channel for the gas masks 308, so that the gas masks 308 can be taken out by the pulley 301. The bottom plate 1 is also provided with a slider 310, and the slider 310 has a slope angle. When the gas masks 308 are driven by the conveyor belt 309 to be taken out of the protective box, the gas masks 308 can be taken out of the protective box 307. The protective box 307 will fall onto the slider 310 by gravity, and then the gas mask 308 will slide to the outside of the device due to the slope of the slider 310. A transmission device 302 is fixedly installed on the input shaft of the clutch box 311 near the angle control cover 206, and a transmission shaft 303 for transmission is fixedly installed on the other end of the transmission device 302. The transmission shaft 303 is rotatably installed on the protective box 307, and a transmission device 306 is also fixedly installed on the transmission shaft 303. A friction wheel 304 for driving is fixedly installed on the other end of the transmission device 306. The friction wheel 304 is rotatably installed on the fixed bracket 305, and the fixed bracket 305 is fixedly installed on the base plate 1 to support the friction wheel 304. During the movement of the device, the friction wheel 304 will be driven by the ground and rotate, so the height of the friction wheel 304 is consistent with the height of the roller on the base plate 1. The transmission device 302 is composed of two pulleys and a belt, and the structure of the transmission device 306 is the same as that of the transmission device 302.

[0023] Specific working principle: when the device is to be inspected in the mine tunnel, the fan motor 213 is started to drive the fan blades 204 to rotate, thereby driving air to flow into the pipe 205 to drive the device to move. When the device moves, the ground will drive the friction wheel 304 to rotate, and then drive the transmission shaft 303 to rotate through the transmission device 306, and then drive the clutch box 311 input shaft to rotate through the transmission device 302. When the external detection device 215 and the internal detection device 216 detect the poisonous gas in the air, they will continue to alarm to prompt the people around to evacuate urgently, and will transmit the power of the output shaft in the clutch box 311 to the output shaft. At this time, the output shaft of the clutch box 311 drives the pulley 301. After the pulley 301 drives the transmission belt 309 to rotate, the protrusion on the transmission belt 309 brings the gas mask 308 out of the protection box 307, and then slides out by the slider 310 to provide it to the evacuated workers for use, or the passing workers can directly open the protection box and take out the gas mask directly.

[0024] In normal operation, after the fan blades 204 rotate, the airflow around the fan blade cover 203 is driven to enter the pipe 205, and the airflow is transmitted to the beam cover 211 through the pipe 205, and the cylinder rod 207 is driven to move toward the pipe support 201 through the sliding cylinder 214, and then the cylinder rod 207 drives the angle control cover 206 to move, and the movement of the angle control cover 206 will drive the angle rod 208, and the angle rod 208 will drive the sliding ring 210 to slide on the opening and closing rod 209, and make the opening and closing rod 209 rotate on the connecting shaft of the pipe 205, and at the same time, the opening and closing rod 209 will gradually open the beam cover 211, so that the beam cover 211 and the pipe are close to each other. The angle y formed by the pipe 205 gradually decreases. At this time, since the air suddenly flows from the small bottom plate 1 pipe 205 to the bottom plate 1 that is larger than the previous bottom plate 1, the air flow rate will decrease. If y continues to decrease, the air flow rate will continue to slow down. At this time, the moving speed of the device will also slow down. This slow mode will increase the safety of the detected air. If y continues to increase, the air flow rate will increase, and the moving speed of the device will also increase. This is for emergency response and for rapid detection in the mine. In addition, the movement of the fan cover 203 can be controlled by the mobile motor on the pipe support 201. When the mobile motor drives The fan blade screw rod 202 is moved to drive the fan blade cover 203 to slide on the fan slide bar 212 toward the pipe 205, and when the end face of the fan blade cover 203 is fitted with the end face of the pipe 205, the airflow enters the fan blade cover 203 from the fan blade cover 203 through one end of the pipe bracket 201. However, when the fan blade cover 203 moves toward the pipe bracket 201, a gap is generated between the fan blade cover 203 and the pipe 205. At this time, the airflow driven by the fan blades 204 will drive the airflow outside the gap between the fan blade cover 203 and the pipe 205 when flowing through the gap between the fan blade cover 203 and the pipe 205, that is, it drives the fan blades 204 to move. The airflow at one end of the cover 203 away from the pipe bracket 201 flows into the pipe 205, which increases the range of the device to detect toxins in the air. When the gap between the fan blade cover 203 and the pipe 205 is larger, the airflow flowing into the pipe 205 from the fan blade cover 203 will drive a larger range of air to flow into the pipe 205, and then the internal detection device 216 is used to detect whether the flowing gas is harmful. The external detection device 215 on the outside of the pipe 205 will not only detect during the movement of the device, but also detect whether the air flowing into the pipe 205 is harmful when a gap is generated between the fan blade cover 203 and the pipe 205.

[0025] When the device is driven by the fan blades 204 to move, the swing motor 103 drives the swing rod 102 to rotate on the output shaft of the swing motor 103, and then the control board 101 drives the swing rod 102 to rotate on the base plate 1. The direction of the airflow outflowing from the beam cover 211 is changed by controlling the rotation of the control board 101 to control the direction of the movement of the device.

Claims

1. A mobile coal mine airflow monitoring and risk avoidance device, comprising a bottom plate (1), characterized in that: An airflow device (2) is fixedly mounted on the bottom plate (1), and an anti-poison device (3) is also fixedly mounted on the bottom plate (1); The airflow device (2) comprises a pipeline (205), the pipeline (205) is fixedly mounted on the bottom plate (1), a plurality of fan slide bars (212) are fixedly mounted on one end of the pipeline (205), a pipeline support (201) is fixedly mounted on the other end of the fan slide bar (212), the pipeline support (201) is fixedly mounted on the bottom plate (1), a fan blade screw rod (202) is rotatably mounted on the pipeline support (201), the fan blade screw rod (202) is rotatably connected to the pipeline (205), a fan blade cover (203) is matched and mounted on the fan blade screw rod (202), and the fan blade cover (203) ) is also slidably mounted on a fan slide bar (212), a fan motor (213) is fixedly mounted on the fan blade cover (203), a fan blade (204) is fixedly mounted on the output shaft of the fan motor (213), an angle control cover (206) is also slidably mounted on the pipe (205), a cylinder rod (207) is fixedly mounted on the angle control cover (206), a sliding cylinder (214) is fixedly mounted on the cylinder rod (207), the sliding cylinder (214) is fixedly mounted on the bottom plate (1), and a plurality of angle rods (208) are fixedly mounted on the angle control cover (206); The anti-gas device (3) comprises an electrically controlled clutch box (311), the clutch box (311) being fixedly mounted on a bottom plate (1), a pulley (301) being fixedly mounted on an output shaft of the clutch box (311) away from the angle control cover (206), a transmission belt (309) being arranged on the pulley (301), a protection box (307) being fixedly mounted on the bottom plate (1), a plurality of gas masks (308) being placed in the protection box (307), an outlet channel for the gas masks (308) being arranged in the protection box (307), and a transmission belt (309) being arranged on the output shaft of the clutch box (311) away from the angle control cover (206). A transmission device (302) is fixedly mounted on the input shaft of the cover (206); a transmission shaft (303) for transmission is fixedly mounted on the other end of the transmission device (302); the transmission shaft (303) is rotatably mounted on the protection box (307); a transmission device (306) is also fixedly mounted on the transmission shaft (303); a friction wheel (304) for driving is fixedly mounted on the other end of the transmission device (306); the friction wheel (304) is rotatably mounted on a fixed bracket (305); the fixed bracket (305) is fixedly mounted on the bottom plate (1) to support the friction wheel (304).

2. According to claim 1, a mobile coal mine airflow monitoring and risk avoidance device is characterized by: A swing motor (103) is fixedly mounted on the bottom plate (1), a swing rod (102) is rotatably mounted on the swing motor (103), a control panel (101) for guiding the wind direction is rotatably mounted on the swing rod (102), and the control panel (101) is rotatably mounted on the bottom plate (1).

3. According to claim 1, a mobile coal mine airflow monitoring and risk avoidance device is characterized by: A sliding ring (210) is fixedly mounted on the angle rod (208), a supporting opening and closing rod (209) is slidably mounted on the sliding ring (210), the opening and closing rod (209) is rotatably mounted on the pipeline (205), and a beam cover (211) is fixedly mounted on the opening and closing rod (209).

4. According to claim 1, a mobile coal mine airflow monitoring and risk avoidance device is characterized by: An external detection device (215) is fixedly installed on one end of the pipeline (205) away from the axis and close to the pipeline support (201), and an internal detection device (216) is fixedly installed on one end of the pipeline (205) close to the axis and away from the pipeline support (201).

5. According to claim 1, a mobile coal mine airflow monitoring and risk avoidance device is characterized by: The conveyor belt (309) is provided with a protruding block for supporting the gas mask (308).

6. The mobile coal mine airflow monitoring and risk avoidance device according to claim 3 is characterized by: The beam cover (211) is made of rubber and is in a truncated cone shape.

Images