Coal mine underground safety monitoring camera

Abstract

The invention discloses an underground coal mine safety monitoring camera, and belongs to the technical field of mine safety devices. Comprising a camera body and an angle support, a fixing support is installed on one side of the angle support, and a lifting mechanism used for driving the camera body to ascend and descend is installed on the fixing support; a sensing assembly and a detection module are fixedly mounted in the camera main body; in the descending process of the camera main body, a cable exposed in a mine and a cable completely accommodated in a bobbin are pulled through an induction assembly, so that the cable exposed in the mine can be pulled into the camera main body by a rotating drum, and the integrity of the skin is detected through sliding of a ball of a detection module on the surface of the cable; the maintenance and replacement efficiency of a worker on the quick-wear part of the camera main body in a mine is improved; the problem that inconvenience is caused when the underground camera is subjected to omnibearing inspection and replacement is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of mine safety devices, and specifically relates to a safety monitoring camera for coal mines underground. Background Art

[0002] The safety monitoring camera for coal mines underground mainly uses a camera module to collect images and achieve real-time monitoring of the underground environment. Due to the harsh environment underground in coal mines, the camera needs to have functions such as explosion-proof, high and low temperature resistance, dust and humidity resistance, and shock resistance. For example, the intrinsically safe camera for mines contains a camera module and an integrated circuit board inside, which can record and transmit high-quality images, and monitor the operation of mine equipment, areas where personnel are prohibited from entering in the mining area, and mine working areas. The outside is a sealed structure composed of stainless steel or aluminum alloy, with good dust, water, and impact resistance functions.

[0003] However, due to the harsh environment in the mine, it will still increase the failure rate of the camera, such as vulnerable batteries, cables, lenses, etc., which require workers to regularly check and replace in a timely manner. To ensure that the field of view of the camera can cover the areas that need to be monitored and avoid blind spots, the camera is usually installed at a high position on the shaft wall, and an expansion bolt is used to fix the fixing bracket on the shaft wall, and then a locknut is used to fix the camera on the fixing bracket, and then the power cord and data cable are fixedly inserted.

[0004] When workers perform inspection work, they usually need to use heightening equipment to conduct a comprehensive inspection and maintenance of the camera. However, the terrain of the passage in the mine is rugged and mostly narrow passages, and the heightening operation restricts the movement space of workers, causing inconvenience in comprehensively inspecting and replacing the vulnerable parts of the camera. Summary of the Invention

[0005] The present invention overcomes the deficiencies of the prior art and provides a safety monitoring camera for coal mines underground. The present invention is realized through the following technical solutions: A safety monitoring camera for coal mines underground includes a camera main body and angle brackets installed on both sides of the camera main body. A fixing bracket is installed on one side of the angle bracket. A cable is installed at one end of the camera main body. A lifting mechanism for driving the camera main body to lift is installed on the fixing bracket; the lifting mechanism is connected to the angle bracket through a chain; An induction component and a detection module are fixedly installed inside the camera main body; The induction component includes a fixed plate, a movable plate, a first spring, a magnet with opposite polarity, a second motor and a rotating drum; the fixed plate is fixedly connected in the camera body, and the movable plate is slidably connected in the camera body; the movable plate and the fixed plate are connected by the first spring, and the surfaces of the fixed plate and the movable plate opposite to each other are provided with electrode contacts and magnet with opposite polarity; the two electrode contacts are positioned opposite to each other, and the two magnet with opposite polarity are positioned opposite to each other; a wire hole 1 is provided on the movable plate, and a wire hole 2 is provided on the side wall of the camera body; a through hole is provided on the fixed plate; a rotating drum is rotatably connected in the camera body, and a second motor is fixedly installed in the camera body, and the driving shaft of the second motor is connected to the rotating drum; one end of the cable passes through the wire hole 2, the fixed plate and the rotating drum in sequence The through hole on the fixed plate and the wire hole 1 are wound on the rotating drum; the electrode contact is electrically connected to the second motor; a first torsion spring is fixedly connected to one side of the rotating drum, and one end of the first torsion spring is fixedly connected to the camera body; a wire drum is connected to the outer wall of the lifting mechanism, and a winding post 1 is rotatably connected inside the wire drum; the other end of the cable passes through the wire drum and is wound around the winding post 1; a second torsion spring is fixedly connected to one end of the winding post 1, and one end of the second torsion spring is fixedly connected to the wire drum; two round blocks are fixedly connected to the surface of the cable, and when the cable is in a reeled state, one round block is located on a side close to the outer wall of the wire drum, and the other round block is located on a side close to the rotating drum; the diameter of the round block is larger than the inner diameter of the wire hole 1 and smaller than the inner diameter of the wire hole 2; The detection module includes a circular ring, a positioning rod, a tension spring, a circle and a ball; a circular ring is rotatably connected inside the side wall of the camera body, the second wire hole is located in the middle of the circular ring, and multiple positioning rods are slidably connected inside the circular ring, and one end of the multiple positioning rods extends into and is close to the middle of the second wire hole; a tension spring is fixedly sleeved on the surface of the positioning rod, one end of the tension spring is fixedly connected to the circular ring, and a round rod is fixedly connected to one side of the positioning rod, and the end of the round rod extends into the inner side of the second wire hole; the inside of the round rod is a hollow structure, the length of the round rod is less than the length of the positioning rod, and ink for marking is provided inside the round rod, the positioning rod and one end of the round rod close to the second wire hole are both slidably connected with ball rollers, and the ball rollers at one end of the round rod and the positioning rod are not located on the same circular surface.

[0006] Furthermore, the first winding pole is fixedly connected to the second winding pole; the other end of the cable is inserted into the wire drum and wound around the first winding pole and the second winding pole, and the winding directions of the cable on the first winding pole and the second winding pole are opposite.

[0007] Furthermore, the lifting mechanism includes an installation cabin fixedly connected to one side of the fixed bracket, a first motor is fixedly connected in the installation cabin, a worm is fixedly connected to one end of the output shaft of the first motor, a worm wheel is meshed on the surface of the worm, and a first gear is fixedly connected to one side of the worm wheel; the chain is meshed with the first gear.

[0008] Further, two sets of slide rails are symmetrically and fixedly connected inside the installation cabin. A split guide block is fixedly connected to the middle of the two sets of slide rails. The two sets of slide rails converge and communicate at the connection; and a chain is slidably connected inside each of the slide rails; the chain on the side adjacent to the first gear meshes with the first gear, and a pawl one is fixedly connected to one side of a single link of one chain, and a pawl two is fixedly connected to one side of a single link of the other chain. The pawl one and the pawl two mesh with each other at the connection. The bottom ends of the two chains penetrate to the outside of the installation cabin and are fixedly connected to the angle bracket.

[0009] Furthermore, the overall shape of a single set of slide rails is in a shape of a figure-eight spiral.

[0010] Further, a sliding module for driving the drum to wind the cable is provided between the drum and the output shaft of the second motor.

[0011] Furthermore, the sliding module includes a straight groove, a driving rod, a driven cylinder, a rectangular block, a limiting block, a return spring and a guide rod; a plurality of straight grooves are opened at the upper end of the drum, the output end of the second motor is fixedly connected with a driving rod, the surface of the driving rod is slidably connected with a driven cylinder, the driven cylinder is located on one side of the drum, one end of the driven cylinder is fixedly connected with a plurality of rectangular blocks, the rectangular blocks are slidably connected with the straight grooves, two limiting grooves are symmetrically opened inside the driven cylinder, and a limiting block that slides in the limiting grooves is fixedly connected to the surface of the driving rod. A return spring is provided between the driven cylinder and the driving rod; two guide rods are symmetrically and fixedly connected to the side surface of the driving rod, a fixed cylinder is fixedly connected inside the camera body, a circulation groove and a guiding groove are opened inside the fixed cylinder, the guide rods are slidably connected with the circulation groove and the guiding groove, the circulation groove is located on the upper and lower sides of the inner wall of the fixed cylinder and is circular as a whole, and the guiding groove connects the two circulation grooves, so that the guide rods reciprocate in the two circulation grooves.

[0012] Further, a toothed ring is fixedly connected to the side surface of the ring, an electric telescopic rod is fixedly connected inside the camera body, the output end of the electric telescopic rod is fixedly connected with a gear plate, the gear plate meshes with the toothed ring, and the electrode contact is electrically connected to the electric telescopic rod; when the two electrode contacts are in contact and fit, an input power supply is provided for the electric telescopic rod, and the electric telescopic rod performs a reciprocating telescopic motion, so that the gear plate drives the toothed ring and the ring to rotate reciprocally in the wire hole two, and the ball at one end of the positioning rod makes an arc sliding motion on the surface of the cable.

[0013] Further, the fixed bracket is fixed to the inner wall of the mine through expansion bolts.

[0014] The beneficial effects of the present invention relative to the prior art are: The present invention forms a rigid chain with high rigidity by meshing the first claw and the second claw on one side of two chains, thereby driving the main body of the camera to descend along the inner wall of the mine shaft, avoiding the need for workers to carry climbing tools to perform climbing operations in the narrow mine shaft, facilitating the maintenance and replacement of vulnerable parts of the main body of the camera by workers, and improving the safety of workers during their work in the mine shaft.

[0015] During the descent of the main body of the camera, by setting a sliding module and an induction component, the cable exposed in the mine shaft and the cable completely stored in the cable drum are pulled, so that the cable exposed in the mine shaft can be pulled into the main body of the camera by the rotating drum, and the integrity of the epidermis is detected by the rolling balls of the detection module sliding on the surface of the cable; when the main body of the camera stops descending in the mine shaft, the rolling balls at one end of the round rod slide on the surface of the cable to smear the internal red ink at the damaged part, and workers can discover it in the first time and conduct a secondary inspection and confirmation at the marked part, improving the maintenance and replacement efficiency of vulnerable parts of the main body of the camera by workers in the mine shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front view schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall side-sectional structure of the present invention; Figure 3 is Figure 2 a schematic diagram of the enlarged structure of part A in Figure 4 is Figure 2 a schematic diagram of the enlarged structure of part B in Figure 5 is a schematic diagram of the rectangular block structure of the present invention; Figure 6 is a schematic diagram of the side-sectional structure of the rotating drum of the present invention; Figure 7 is a schematic diagram of the structure of the moving plate and the fixed plate of the present invention; Figure 8 is a schematic diagram of the internal structure of the ring of the present invention; Figure 9 is a schematic diagram of the structure of the toothed ring and the electric telescopic rod of the present invention; Figure 10 is a two-dimensional schematic diagram of the installation cabin of the present invention; Figure 11 is Figure 10 a schematic diagram of the enlarged structure of part C in

[0017] In the figure: 1. Main body of the camera; 101. Angle bracket; 102. Fixed bracket; 103. Cable; 2. Lifting mechanism; 201. Installation cabin; 202. First motor; 203. Worm; 204. Worm gear; 205. First gear; 206. Slide rail; 207. Split guide block; 208. Chain; 209. Claw one; 210. Claw two; 3. Induction component; 301. Fixed plate; 302. Moving plate; 303. First spring; 304. Electrode contact; 305. Opposite-sex magnet; 306. Wire hole one; 307. Round block; 308. Second motor; 309. Drum; 310. First torsion spring; 311. Thread bobbin; 312. Winding post one; 313. Winding post two; 314. Second torsion spring; 4. Detection module; 401. Wire hole two; 402. Ring; 403. Positioning rod; 404. Tensile spring; 405. Round rod; 406. Ball; 5. Sliding module; 501. Straight groove; 502. Driving rod; 503. Driven cylinder; 504. Rectangular block; 505. Limiting groove; 506. Limiting block; 507. Return spring; 508. Guide rod; 509. Fixed cylinder; 510. Circulating groove; 511. Guide groove; 6. Tooth ring; 7. Electric telescopic rod; 8. Gear plate. Detailed implementation manner

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail in combination with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. The technical solutions of the present invention will be described in detail below in combination with embodiments and drawings, but the protection scope is not limited by this.

[0019] See Figures 1 to 11 , this embodiment proposes a safety monitoring camera for coal mines underground, including a camera main body 1 and angle brackets 101 installed on both sides of the camera main body 1. A fixed bracket 102 is installed on one side of the angle bracket 101, and a cable 103 is installed at one end of the camera main body 1. An elevating mechanism 2 for driving the camera main body 1 to lift is installed between the fixed bracket 102 and the angle bracket 101. The camera main body 1 is a sealed structure composed of aluminum alloy or stainless steel, with high corrosion resistance to adapt to the harsh environment underground in the mine. Workers use expansion bolts to fix the fixed bracket 102 at a higher position on the inner wall of the mine, so as to ensure that the core of the camera main body 1 can photograph a complete area.

[0020] Among them, the lifting mechanism 2 includes an installation cabin 201 fixedly connected to one side of the fixed bracket 102. A first motor 202 is fixedly connected inside the installation cabin 201. One end of the output shaft of the first motor 202 is fixedly connected with a worm 203. A worm gear 204 is meshed on the surface of the worm 203. One side of the worm gear 204 is fixedly connected with a first gear 205. The first motor 202 can be remotely controlled by the worker to continuously rotate the output shaft and the worm 203 clockwise. The worm gear 204 can only be driven by the meshing of the worm 203 and has a certain self-locking property, so as to control the rotation direction and speed of the first gear 205. Two groups of slide rails 206 are symmetrically and fixedly connected inside the installation cabin 201. Each group of slide rails 206 is in a shape of a figure-eight spiral as a whole and has a guiding function. A guiding block 207 is fixedly connected to the middle of the two groups of slide rails 206. The two groups of slide rails 206 converge and communicate at the connection. And a chain 208 is slidably connected inside each group of slide rails 206. Among them, the chain 208 on the side adjacent to the first gear 205 meshes with the first gear 205. One side of a single link of one chain 208 is fixedly connected with a first claw 209, and one side of a single link of the other chain 208 is fixedly connected with a second claw 210. The first claw 209 and the second claw 210 mesh with each other at the connection. The bottom ends of the two chains 208 penetrate to the outside of the installation cabin 201 and are fixedly connected with the angle bracket 101.

[0021] Due to the meshing of the first claw 209 and the second claw 210, the two chains 208 form a rigid chain with a certain hardness. The rigid chain has characteristics such as high rigidity, high precision, high strength, wear resistance and corrosion resistance, and can support the camera main body 1 and the angle bracket 101 to make lifting movements in the mine. At the same time, when the two chains 208 move in opposite directions inside the slide rails 206, the mutually meshing first claw 209 and second claw 210 will separate under the action of the guiding block 207, so that the two chains 208 respectively enter the corresponding slide rails 206. The chain 208 moves along the figure-eight slide rail 206, which can reduce the volume of the chain 208 when it is stored and improve the utilization rate of the space inside the installation cabin 201.

[0022] When it is necessary to lower the camera main body 1, the first motor 202 can be manually and remotely controlled to rotate clockwise. The first gear 205 is driven to rotate clockwise through the first motor 202, the worm 203 and the worm gear 204, and then the two chains 208 are driven to move downward inside the installation cabin 201, and the camera main body 1 can be driven to descend through the angle bracket 101. Similarly, when it is necessary to lift the camera main body 1, the first gear 205 is rotated counterclockwise, so as to drive the camera main body 1 to rise. Since the camera main body 1 can move up and down, it is convenient for the worker to repair and replace the vulnerable parts of the camera main body 1 in the narrow mine.

[0023] A sensing component 3 for winding up the cable 103 is fixedly installed in the camera body 1. When the camera body 1 moves downward in the mine, the sensing component 3 can be triggered to work, so that the length of the cable 103 is stretched; when the camera body 1 moves upward in the mine, the sensing component 3 can roll up the cable 103; a detection module 4 for detecting the integrity of the surface of the cable 103 is also installed in the camera body 1. The detection module 4 cooperates with the sensing component 3 to detect the integrity of the surface of the cable 103 during the process of stretching or winding the cable 103, and determine whether part of the cable 103 is damaged.

[0024] Specifically, the induction component 3 includes a fixed plate 301, a movable plate 302, a first spring 303, an opposite magnet 305, a second motor 308, a rotating drum 309, a bobbin 311, a winding post 1 312 and a winding post 2 313; the fixed plate 301 is fixedly connected to the camera body 1, and the movable plate 302 is slidably connected to the camera body 1; the movable plate 302 is arranged opposite to the fixed plate 301, and the movable plate 302 and the fixed plate 301 are made of a material that does not generate static electricity as a whole, and the movable plate 302 and the fixed plate 301 are connected by the first spring 303, and the fixed plate 301 and the movable plate 302 are connected to each other. Electrode contacts 304 and opposite-polarity magnets 305 are provided on the surfaces of one side of the pair; the two electrode contacts 304 are positioned opposite to each other, and the two opposite-polarity magnets 305 are positioned opposite to each other; the two electrode contacts 304 are the positive and negative poles of the power supply; a wire hole 1 306 is provided on the movable plate 302, and a wire hole 2 401 is provided on the side wall of the camera body 1; a through hole is provided on the fixed plate 301; a rotating drum 309 is rotatably connected in the camera body 1, and a second motor 308 is fixedly installed in the camera body 1, and the driving shaft of the second motor 308 is connected to the rotating drum 309; the electrode contacts 304 are electrically connected to the second motor 308.

[0025] One end of the cable 103 passes through the second wire hole 401, the through hole on the fixing plate 301, and the first wire hole 306 in sequence and is then wound around the rotating drum 309; when the second motor 308 is energized, it drives the rotating drum 309 to rotate and wind up the cable 103; a first torsion spring 310 is fixedly connected to one side of the rotating drum 309, and one end of the first torsion spring 310 is fixedly connected to the camera body 1.

[0026] One side of the installation cabin 201 is fixedly connected with a wire barrel 311. A winding column one 312 is rotatably connected inside the wire barrel 311. The winding column one 312 is fixedly connected with a winding column two 313. The other end of the cable 103 passes through the wire barrel 311 and is wound and connected to the winding column one 312 and the winding column two 313. One end of the winding column one 312 is fixedly connected with a second torsion spring 314, and one end of the second torsion spring 314 is fixedly connected with the wire barrel 311; the winding directions of the cable 103 on the winding column one 312 and the winding column two 313 are opposite. When the winding column one 312 and the winding column two 313 rotate, the cable 103 in the wire barrel 311 can move in two directions at the same time, which can provide enough length for the downward movement of the camera body 1.

[0027] Two round blocks 307 are fixedly connected to the surface of the cable 103. When the cable 103 is in the winding state, that is, when the camera body 1 is in the working state at a certain height, one round block 307 is located on the side close to the outer wall of the wire barrel 311, and the other round block 307 is located on the side close to the rotating cylinder 309; the diameter of the round block 307 is larger than the inner diameter of the wire guiding hole one 306 and smaller than the inner diameter of the wire guiding hole two 401.

[0028] In the initial state, the first torsion spring 310 and the second torsion spring 314 are both in a stationary state, and a small amount of cable 103 is wound on the surface of the rotating drum 309, a large amount of complete cable 103 is wound on the surfaces of the winding pole 1 312 and the winding pole 2 313, and the two round blocks 307 on the cable 103 are close to the rotating drum 309 and the wire drum 311 respectively; the first spring 303 is in a relaxed state, there is a certain distance between the movable plate 302 and the fixed plate 301, and the electrode contacts 304 therebetween are not in contact, and the oppositely-charged magnets 305 therebetween do not generate suction. When the camera body 1 moves downward in the mine, the camera body 1 pulls the cable 103 downward, and at this time, the cable 103 will form a pulling force on the rotating drum 309 and the winding pole 1 312 and the winding pole 2 313. Part of the cable 103 on the rotating drum 309 begins to detach from the surface of the rotating drum 309, and the round block 307 is larger than the inner diameter of the wire hole 1 306. When the cable 103 moves toward the outside of the camera body 1, the round block 307 close to one side of the rotating drum 309 squeezes and pushes the wire hole 1 306 and the movable plate 302, so that the two electrode contacts 304 contact. When the electrode contacts 304 contact, the power is turned on, the second motor 308 is energized and can continue to work; and the two opposite magnets 305 are attracted to each other, so that the two electrode contacts 304 maintain good contact; similarly, when the electrode contacts 304 are separated, the second motor 308 stops working. When the second motor 308 is working, it drives the rotating drum 309 to reverse and compress the first torsion spring 310, and the winding pole 1 312 and the winding pole 2 313 rotate and compress the second torsion spring 314, and the complete cable 103 wound on the winding pole 1 312 and the winding pole 2 313 is pulled out from the wire drum 311 and provides enough complete cable 103 for the camera body 1 to move downward, and a part of the cable 103 exposed in the mine for a long time (that is, a section of the cable 103 at the lower part of the round block 307 near the wire drum 311) is pulled into the camera body 1 through the wire hole 2 401. During the pulling-in process, the surface integrity of this part of the cable 103 can be detected by the detection module 4, thereby improving the working speed of workers in repairing and replacing the wearing parts of the camera body 1 in a narrow mine, and reducing the working time of workers in a narrow mine.

[0029] A sliding module 5 is provided between the rotating drum 309 and the output shaft of the second motor 308 to drive the rotating drum 309 to wind the cable 103. The sliding module 5 can accurately drive the rotating drum 309 to accurately drive a section of the cable 103 exposed in the mine before the rotating drum 309 is wound up, thereby preventing the rotating drum 309 from causing the output shaft of the second motor 308 to passively rotate under the pulling of the cable 103, thereby affecting the function of the second motor 308.

[0030] The sliding module 5 includes a straight groove 501, a driving rod 502, a driven cylinder 503, a rectangular block 504, a limiting block 506, a return spring 507, and a guide rod 508; a plurality of straight grooves 501 are provided at the upper end of the rotary cylinder 309, the output end of the second motor 308 is fixedly connected to a driving rod 502, the surface of the driving rod 502 is slidably connected to a driven cylinder 503, the driven cylinder 503 is located on one side of the rotary cylinder 309, one end of the driven cylinder 503 is fixedly connected to a plurality of rectangular blocks 504, the rectangular blocks 504 are slidably connected to the straight grooves 501, two limiting grooves 505 are symmetrically provided in the driven cylinder 503, and the surface of the driving rod 502 is fixedly connected to a limiting block 506 that slides in the limiting grooves 505. A return spring 507 is provided between the driven cylinder 503 and the driving rod 502; two guide rods 508 are symmetrically and fixedly connected to the side surface of the driving rod 502, a fixed cylinder 509 is fixedly connected inside the camera body 1, a circulation groove 510 and a guiding groove 511 are provided inside the fixed cylinder 509, the guide rods 508 are slidably connected to the circulation groove 510, the circulation groove 510 is located on the upper and lower sides of the inner wall of the fixed cylinder 509 and is circular as a whole, and the guiding groove 511 can connect the two circulation grooves 510, so that the guide rods 508 can reciprocate in the two circulation grooves 510, and the guide rods 508 can drive the driven cylinder 503 to approach the rotary cylinder 309. When the straight groove 501 contacts the rectangular block 504, the rotary cylinder 309 can be driven by the output shaft of the second motor 308 to rotate and wind up the cable 103. The driving rod 502 can drive the driven cylinder 503 to rotate, and at the same time, the limiting rods on both sides of the surface of the driven cylinder 503 can slide in the limiting grooves 505, so that the driven cylinder 503 linearly slides on the surface of the driving rod 502, and the rectangular block 504 at one end of the driven cylinder 503 is butted and engaged with the straight groove 501 at one end of the rotary cylinder 309.

[0031] In the working state, when the two electrode contacts 304 are in close contact and provide input power to the second motor 308, the second motor 308 drives the driving rod 502 and the driven cylinder 503 to rotate, and the guide rods 508 on the surface of the driven cylinder 503 will slide in the first circulation groove 510, and when the guide rods 508 enter another circulation groove 510 through the guiding groove 511, the guide rods 508 drive the driven cylinder 503 and the rectangular block 504 to be butted and engaged with the straight groove 501 on one side of the rotary cylinder 309. At this time, the second motor 308 can normally drive the rotary cylinder 309 to rotate to wind up the cable 103, and actively pull the cable 103 exposed in the mine into the camera body 1 and check the integrity of its epidermis.

[0032] The detection module 4 includes a circular ring 402, positioning rods 403, tension springs 404, round rods 405 and balls 406; a circular ring 402 is rotatably connected inside the side wall of the camera body 1, and the circular ring 402 can rotate within the camera body 1. The second wire hole 401 is located in the middle of the circular ring 402. A plurality of positioning rods 403 are slidably connected inside the circular ring 402, and one end of the plurality of positioning rods 403 extends into and approaches the middle of the second wire hole 401; a tension spring 404 is fixedly sleeved on the surface of the positioning rod 403, one end of the tension spring 404 is fixedly connected to the circular ring 402, and a round rod 405 is fixedly connected to one side of the positioning rod 403. Similarly, the end of the round rod 405 also extends into the inner side of the second wire hole 401; the inside of the round rod 405 is a hollow structure, the length of the round rod 405 is less than the length of the positioning rod 403, and red ink is provided inside the round rod 405. Balls 406 are slidably connected to one end of the positioning rod 403 and the round rod 405 close to the second wire hole 401, and the ball 406 at one end of the round rod 405 and the ball 406 at one end of the positioning rod 403 are not located on the same circular surface.

[0033] Under the action of the tension spring 404, one end of the plurality of positioning rods 403 can gradually approach. When the cable 103 passes through the quasi-circle formed by the plurality of positioning rods 403, a pressure can be formed on one end of the positioning rod 403, so that one end of the positioning rod 403 is in close contact with the surface of the cable 103; when the cable 103 moves in the second wire hole 401, the ball 406 at one end of the positioning rod 403 slides on the surface of the cable 103 to detect whether there is damage on the surface of the cable 103; when there is damage on the surface of the cable 103, the damaged part where the epidermis warps will squeeze the positioning rod 403, so that the ball 406 at one end of the round rod 405 contacts the damaged position and smears the internal red ink on the surface of the damaged part, so as to facilitate the worker to directly observe the red ink, reminding the worker to conduct a secondary inspection and maintenance work on this position, thereby improving the working efficiency of the worker in repairing the vulnerable parts of the camera body 1 underground in the mine.

[0034] A toothed ring 6 is fixedly connected to the side surface of the circular ring 402, an electric telescopic rod 7 is fixedly connected inside the camera body 1, a gear plate 8 is fixedly connected to the output end of the electric telescopic rod 7, the gear plate 8 meshes with the toothed ring 6, and the electrode contact 304 is electrically connected to the electric telescopic rod 7; when the two electrode contacts 304 are in contact and fit, an input power supply is provided for the electric telescopic rod 7, and the electric telescopic rod 7 will drive its output end to perform a reciprocating telescopic motion, so that the gear plate 8 at one end of its output end drives the toothed ring 6 and the circular ring 402 to rotate reciprocally in the second wire hole 401, so that the ball 406 at one end of the positioning rod 403 slides in an arc on the surface of the cable 103, which is beneficial to improving the accuracy of the positioning rod 403 in detecting the integrity of the cable 103 epidermis and facilitating the improvement of the safety of the camera body 1 in the harsh underground environment of the mine.

[0035] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific embodiments of the present invention are limited thereto. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the present invention, several simple deductions or substitutions can still be made, and all should be regarded as falling within the scope of patent protection determined by the claims submitted for the present invention.

Claims

1. A coal mine underground safety monitoring camera, comprising a camera body (1) and angle brackets (101) mounted on both sides of the camera body (1), a fixed bracket (102) being mounted on one side of the angle bracket (101), and a cable (103) being mounted on one end of the camera body (1), characterized in that: A lifting mechanism (2) for driving the camera body (1) to move up and down is installed on the fixed bracket (102); the lifting mechanism (2) is connected to the angle bracket (101) via a chain (208); A sensing component (3) and a detection module (4) are fixedly installed in the camera body (1); The induction component (3) comprises a fixed plate (301), a movable plate (302), a first spring (303), a magnet of opposite sex (305), a second motor (308) and a rotating drum (309); the fixed plate (301) is fixedly connected in the camera body (1), and the movable plate (302) is slidably connected in the camera body (1); the movable plate (302) and the fixed plate (301) are connected via the first spring (303), and the surfaces of the fixed plate (301) and the movable plate (302) on one side opposite to each other are provided with electrode contacts (304) and the magnet of opposite sex (305). 5); the two electrode contacts (304) are positioned opposite to each other, and the two opposite magnets (305) are positioned opposite to each other; a first wire hole (306) is provided on the movable plate (302), and a second wire hole (401) is provided on the side wall of the camera body (1); a through hole is provided on the fixed plate (301); a rotating drum (309) is rotatably connected to the camera body (1), a second motor (308) is fixedly installed in the camera body (1), and a driving shaft of the second motor (308) is connected to the rotating drum (309); one end of the cable (103) passes through the second wire hole (401) in sequence ), the through hole on the fixing plate (301), and the wire hole one (306) and then wound on the rotating drum (309); the electrode contact (304) is electrically connected to the second motor (308); a first torsion spring (310) is fixedly connected to one side of the rotating drum (309), and one end of the first torsion spring (310) is fixedly connected to the camera body (1); a wire drum (311) is connected to the outer wall of the lifting mechanism (2), and a winding post one (312) is rotatably connected inside the wire drum (311); the other end of the cable (103) is inserted into the wire drum (311) and is wound and connected to the winding post one (312) ); one end of the winding column (312) is fixedly connected to a second torsion spring (314), and one end of the second torsion spring (314) is fixedly connected to the wire drum (311); two round blocks (307) are fixedly connected to the surface of the cable (103); when the cable (103) is in a reeled state, one round block (307) is located on a side close to the outer wall of the wire drum (311), and the other round block (307) is located on a side close to the rotating drum (309); the diameter of the round block (307) is larger than the inner diameter of the wire hole (306) and smaller than the inner diameter of the wire hole (401); The detection module (4) comprises a circular ring (402), a positioning rod (403), a tension spring (404), a circular rod (405) and a ball (406); the circular ring (402) is rotatably connected to the side wall of the camera body (1); the second wire hole (401) is located in the middle of the circular ring (402); a plurality of positioning rods (403) are slidably connected to the circular ring (402); one end of the plurality of positioning rods (403) extends into and is close to the middle of the second wire hole (401); a tension spring (404) is fixedly sleeved on the surface of the positioning rod (403); one end of the tension spring (404) is fixed to the circular ring (402). A round rod (405) is fixedly connected to one side of the positioning rod (403), and the end of the round rod (405) extends into the inner side of the second wire hole (401); the inside of the round rod (405) is a hollow structure, the length of the round rod (405) is less than the length of the positioning rod (403), and ink for marking is provided inside the round rod (405); the positioning rod (403) and one end of the round rod (405) close to the second wire hole (401) are both slidably connected with a ball (406), and the ball (406) at one end of the round rod (405) and the ball (406) at one end of the positioning rod (403) are not located on the same circular surface.

2. A coal mine underground safety monitoring camera according to claim 1, characterized in that: The first winding post (312) is fixedly connected to the second winding post (313); the other end of the cable (103) is sequentially wound around the first winding post (312) and the second winding post (313), and the winding directions of the cable (103) on the first winding post (312) and the second winding post (313) are opposite.

3. A coal mine underground safety monitoring camera according to claim 1, characterized in that: The lifting mechanism (2) comprises an installation cabin (201) fixedly connected to one side of the fixed bracket (102), a first motor (202) fixedly connected in the installation cabin (201), a worm (203) fixedly connected to one end of the output shaft of the first motor (202), a worm wheel (204) meshing on the surface of the worm (203), and a first gear (205) fixedly connected to one side of the worm wheel (204); the chain (208) meshes with the first gear (205).

4. A coal mine underground safety monitoring camera according to claim 3, characterized in that: Two groups of slide rails (206) are symmetrically fixedly connected in the installation cabin (201), and a guide block (207) is fixedly connected in the middle of the two groups of slide rails (206). The two groups of slide rails (206) converge and communicate at the connection point; and a chain (208) is slidably connected in each of the two groups of slide rails (206); the chain (208) on the side adjacent to the first gear (205) is meshed with the first gear (205), and a claw 1 (209) is fixedly connected to one side of a single chain link of one chain (208), and a claw 2 (210) is fixedly connected to one side of a single chain link of the other chain (208), and the claw 1 (209) and the claw 2 (210) are meshed with each other at the connection point, and the bottom ends of the two chains (208) pass through the outside of the installation cabin (201) and are fixedly connected to the angle bracket (101).

5. A coal mine underground safety monitoring camera according to claim 4, characterized in that: The single set of slide rails (206) is in a spiral shape as a whole.

6. A coal mine underground safety monitoring camera according to claim 1, characterized in that: A sliding module (5) is provided between the rotating drum (309) and the output shaft of the second motor (308) and is used to drive the rotating drum (309) to wind the cable (103).

7. A coal mine underground safety monitoring camera according to claim 6, characterized in that: The sliding module (5) comprises a straight groove (501), a driving rod (502), a driven cylinder (503), a rectangular block (504), a stop block (506), a return spring (507) and a guide rod (508); a plurality of straight grooves (501) are provided at the upper end of the rotating cylinder (309); the output end of the second motor (308) is fixedly connected to the driving rod (502); the surface of the driving rod (502) is slidably connected to the driven cylinder (503); the driven cylinder (503) is located on one side of the rotating cylinder (309); a plurality of rectangular blocks (504) are fixedly connected to one end of the driven cylinder (503); the rectangular blocks (504) are slidably connected to the straight groove (501); two stop slots (505) are symmetrically provided in the driven cylinder (503); the driving rod (502) is fixedly connected to the driven cylinder (503); ) is fixedly connected to the surface of a limit block (506) that slides in a limit groove (505); a return spring (507) is provided between the driven cylinder (503) and the driving rod (502); two guide rods (508) are symmetrically fixedly connected to the side of the driving rod (502); a fixed cylinder (509) is fixedly connected to the camera body (1); a circulation groove (510) and a guide groove (511) are provided in the fixed cylinder (509); the guide rod (508) is slidably connected to the circulation groove (510); the circulation groove (510) is located on the upper and lower sides of the inner wall of the fixed cylinder (509) and is circular as a whole; the guide groove (511) connects the two circulation grooves (510) so that the guide rod (508) reciprocates in the two circulation grooves (510).

8. A coal mine underground safety monitoring camera according to claim 1, characterized in that: A gear ring (6) is fixedly connected to the side of the circular ring (402), an electric telescopic rod (7) is fixedly connected inside the camera body (1), a gear plate (8) is fixedly connected to the output end of the electric telescopic rod (7), the gear plate (8) is meshed with the gear ring (6), and the electrode contact (304) is electrically connected to the electric telescopic rod (7); when the two electrode contacts (304) are in contact and fit, input power is provided to the electric telescopic rod (7), the electric telescopic rod (7) performs reciprocating telescopic motion, the gear plate (8) drives the gear ring (6) and the circular ring (402) to reciprocate in the second wire hole (401), and the ball (406) at one end of the positioning rod (403) slides in an arc on the surface of the cable (103).

9. A coal mine underground safety monitoring camera according to claim 1, characterized in that: The fixing bracket (102) is fixed to the inner wall of the mine by means of expansion bolts.

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