A mine wall column displacement monitoring device

Abstract

The present invention belongs to the field of displacement monitoring of wall columns under mines, and specifically provides a displacement monitoring device for wall columns under mines, comprising a laser sensing tube, a fixed tube, an adaptive measuring tube and a limit groove. The two ends of the laser sensing tube are fixedly connected with the fixed tube, the middle of the laser sensing tube is fixedly connected with the adaptive measuring tube, the fixed tube and the adaptive measuring tube are both perpendicular to the laser sensing tube, the limit groove is movably arranged at the bottom of the fixed tube, the fixed tube is extended and retracted by a motor to fix the device, and a sliding limit box in the fixed tube extends and limits the fixed tube, each measuring point is provided with an adaptive measuring tube, and point-by-point monitoring of concave and convex special-shaped walls is realized to meet the monitoring needs of different walls, when the wall column moves, the measuring plug plate arranged in the adaptive measuring tube is displaced, and the displacement can be accurately read in combination with the scale line, thereby realizing signal amplification of the tiny displacement occurring at the monitoring point.

Description

Technical Field

[0001] The invention belongs to the field of mine wall column displacement monitoring, and in particular refers to a mine wall column displacement monitoring device. Background Art

[0002] In underground mine engineering, the wall column is a key structure that supports the stability of the mine tunnel. Its safety and stability are crucial to mine safety production. With the deepening of mining, the wall column under the mine is easily affected by various factors, which may cause displacement, deformation or even damage. Therefore, real-time monitoring and early warning of the displacement of the wall column under the mine are of great significance for preventing mine safety accidents and protecting the lives of miners. However, the existing underground wall column displacement monitoring device has many limitations and problems:

[0003] (1) The existing underground wall column displacement monitoring device relies on manual inspection and cannot monitor the wall column in all directions around the clock. In addition, the installation process is complicated and difficult to maintain and use. The installation mostly relies on manual operation, and the device is unstable.

[0004] (2) Most of the wall columns under the mine are concave, convex and irregular in shape. Since the deformation of each measuring point on the concave, convex and irregular wall is different, the device cannot monitor the concave, convex and irregular wall during the measurement process;

[0005] (3) Existing devices often use traditional equipment and technologies with limited measurement accuracy, making it difficult to accurately capture the tiny displacements of wall columns. Summary of the invention

[0006] The present invention overcomes the shortcomings of the prior art and provides a device for monitoring the displacement of wall columns under a mine. The device is designed with a laser sensing tube, a fixed tube, an adaptive measuring tube and a limit groove. The fixed tube is driven by a motor to extend and retract to fix the device, and a sliding limit box in the fixed tube extends and limits the fixed tube. Each measuring point is provided with an adaptive measuring tube, which realizes point-by-point monitoring of concave and convex special-shaped wall surfaces to meet the monitoring needs of different wall surfaces. When the wall column moves, the measuring plug plate arranged in the adaptive measuring tube is displaced, and the displacement can be accurately read in combination with the scale line, thereby realizing signal amplification of the tiny displacement occurring at the monitoring point.

[0007] The technical solution adopted by the present invention is as follows: This solution provides a displacement monitoring device for a wall column under a mine, including a laser sensing tube, a fixed tube, an adaptive measuring tube and a limit groove, wherein the two ends of the laser sensing tube are fixedly connected with the fixed tube, and the middle of the laser sensing tube is fixedly connected with the adaptive measuring tube, the fixed tube and the adaptive measuring tube are both perpendicular to the laser sensing tube, and the limit groove is movably clamped at the bottom of the fixed tube;

[0008] Furthermore, a sliding limit box is fixedly provided on the top of the inner wall of the fixed tube, and slope contact limit blocks are movably provided on both sides of the sliding limit box, and a button switch is fixedly provided on the top of the inner wall of the sliding limit box, and the button switch is located on the fixed tube, and pushing plates are movably provided on both sides of the sliding limit box, and the outer side of the pushing plate is fixedly connected to the slope contact limit block, and a movable block is movably provided on the inner side of the pushing plate, and an adjusting spring is fixedly provided between the two movable blocks, and the movable block and the adjusting spring move in the sliding limit box, and a pressing plate is movably provided on the top of the movable block, and lifting springs are fixedly connected at both ends of the top of the pressing plate, and the lifting springs are located on both sides of the button switch, and when the slope contact limit block is subjected to force, the pushing plate is squeezed to drive the pushing plate to move inward and squeeze the movable block, so that the movable block is displaced, driving the pressing plate to lift, the lifting spring is contracted, and the pressing plate touches the button switch;

[0009] The cam is provided with a circle, and the circle is arranged on the side away from the laser sensor tube. The cam is provided with a circular ring, and the circular ring is movably connected with the circle to prevent the cam from flying out of the cam. The outer surface of the cam is fixedly engraved with a spiral groove, and the cross section of the spiral groove is an inverted trapezoid. The sliding limit box is movably arranged on the spiral groove, and the slope surface of the slope contact limit block is movably fitted with the inner wall surface of the spiral groove. One end of the cam is fixedly connected with the output end of the motor, and the motor is far away from the circular ring. The bottom of the motor is fixedly provided with a connecting disk, and the outer periphery of the connecting disk is fixedly provided with a fixing hole. The bottom of the cam is fixedly provided with a fixed limiting column, and the bottom of the fixed limiting column is fixedly provided with a movable block, and the movable block is movably engaged in the limiting groove. When the motor is started, the cam is driven to rotate, and the spiral groove rotates along the sliding limit box. Under the cooperation of the fixed limiting column and the sliding limit box, the fixed tube performs telescopic movement.

[0010] Preferably, a laser transmitter is fixedly provided at one end of the laser sensing tube, and a laser signal receiver is fixedly provided at the other end. A power supply is fixedly connected to the non-transmitting end of the laser transmitter, and the power supply supplies power to the entire device. A single-chip microcomputer is fixedly provided at one side of the laser signal receiver, and the single-chip microcomputer is close to the fixed tube. An alarm light is attached to the outside of the laser sensing tube, and a time relay is fixedly provided on the top of the push button switch, and the time relay is located in the fixed tube. The push button switch, the laser transmitter, the laser signal receiver, the alarm light and the time relay are all electrically connected to the single-chip microcomputer.

[0011] Preferably, the adaptive measuring cylinder is fixedly engraved with scale lines, a measuring plug plate is movably provided in the adaptive measuring cylinder, a laser monitoring plate is fixedly connected to one side of the measuring plug plate, a laser monitoring hole is fixedly opened in the middle of the laser monitoring plate, the laser monitoring plate is located in the laser sensing tube, a liquid cylinder is fixedly provided at one end of the adaptive measuring cylinder, the liquid cylinder is far away from the laser sensing tube, a movable plug plate is movably provided in the liquid cylinder, the liquid cylinder is filled with liquid, the liquid is located between the movable plug plate and the measuring plug plate, a plug plate sleeve is fixedly provided on one side of the movable plug plate, the plug plate sleeve is far away from the measuring plug plate, a pulley fixing plate is fixedly provided on one side of the movable plug plate, the pulley fixing plate is located in the plug plate sleeve, and a plurality of lifting groups are movably hinged on the pulley fixing plate A lowering connecting rod, a pulley limiting rod is fixedly provided at one end of the lifting connecting rod, a connecting rod limiting plate is fixedly provided on the pulley fixing plate, the pulley limiting rod is movably inserted into the connecting rod limiting plate, a pulley rotating piece is hinged on the pulley fixing plate, the pulley rotating piece is located at the bottom of the pulley limiting rod, a pulley fixing groove is fixedly provided on the pulley rotating piece, one side of the pulley rotating piece is rotatably connected to the limiting pulley, a connecting rod force triangle plate is movably provided on the outer side of the plug plate sleeve, and the connecting rod force triangle plate is arranged on the top of the lifting connecting rod; when the movable plug plate moves, the liquid in the liquid cylinder pushes the measuring plug plate to move, thereby driving the movement of the laser monitoring plate, resulting in the laser signal receiver being unable to receive the laser emitted by the laser transmitter, and the moving distance is read by measuring the plug plate and the scale line;

[0012] As a further preferred embodiment of the present invention, a fixed sleeve is movably sleeved in the plug plate sleeve, a movable seam of a triangular plate is fixedly opened on the fixed sleeve, a measuring point contact plate is fixedly provided on one side of the fixed sleeve, the measuring point contact plate is away from the plug plate sleeve, a rubber adaptation plate is fixedly provided on one side of the measuring point contact plate, the rubber adaptation plate is away from the fixed sleeve, a pulley slot plate is fixedly connected to the measuring point contact plate, the pulley slot plate is arranged in the fixed sleeve, a pulley special-shaped groove is fixedly opened on the pulley slot plate, and the limiting pulley moves movably in the pulley special-shaped groove.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows:

[0014] (1) The present invention makes the device easy to install and use by connecting the laser sensing tube, the fixing tube, the adaptive measuring tube and the limit groove. The device only needs to be placed on the wall and installed through the fixing holes on the connecting plate. After the installation is completed, no manual inspection operation is required.

[0015] (2) The motor output shaft rotates to drive the rotating rod to rotate synchronously, the sliding limit box slides in the spiral slide groove to limit, and the fixed limit column guides to achieve the extension and retraction of the fixed tube. When the fixed tube is extended to the point where it can no longer be extended, the slope contacts the limit block to drive the push plate to move the movable block, the button switch is squeezed and pressed, and the extension and retraction of the fixed tube stops, so that the device can be adaptively adjusted and installed in the complex environment of the mine and the installation is stable;

[0016] (3) The rubber adaptable plate can fit the walls of different shapes. In addition, the limit pulley slides in the special-shaped groove of the pulley. When it can no longer slide, the movable plug plate moves toward the direction of the laser sensor tube under the action of force. When all the laser monitoring plates touch the wall of the laser sensor tube, the edge of the liquid cylinder just touches the connecting rod force triangle plate, and the connecting rod limit plate falls and engages with the pulley fixing groove. The limit pulley no longer slides. Each measuring point can be adaptive, which effectively solves the problem that the existing device cannot adapt to concave and convex walls and special-shaped curved walls.

[0017] (4) In order to monitor the tiny displacement of the wall, when the movable plug plate in the liquid cylinder is pushed forward, the measuring plug plate in the adaptive measuring cylinder will also move. Since the diameter of the adaptive measuring cylinder is smaller than that of the liquid cylinder, the displacement of the measuring plug plate is greater than that of the movable plug plate, thereby amplifying the signal of the tiny displacement. The measuring plug plate can accurately read the tiny displacement in combination with the scale lines engraved on the adaptive measuring cylinder.

[0018] (5) During the extension and retraction process of the fixed tube, in order to prevent the button switch from being pressed due to misalignment, the present invention provides an adjustment spring and a lifting spring to correct and adjust the position of the pressing plate;

[0019] (6) The limit groove set in the device guides and limits the movement of the fixed cylinder, and the limit ring and the circular ring ensure the stability of the rotating rod and the fixed cylinder during the extension and retraction process;

[0020] (7) The device is driven by a motor and each component is started and stopped by a single-chip microcomputer, reducing errors caused by manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a mine wall column displacement monitoring device proposed by the present invention;

[0022] Figure 2 A top view of a mine wall column displacement monitoring device proposed by the present invention;

[0023] Figure 3 for Figure 2 The cross-sectional structure diagram of the AA section;

[0024] Figure 4A side view of the fixing pipe proposed by the present invention;

[0025] Figure 5 for Figure 4 The cross-sectional structure diagram of the middle BB section;

[0026] Figure 6 for Figure 5 A partial enlarged view of part C in FIG.

[0027] Figure 7 It is a cross-sectional view of the initial state and the pressed state of the pressing plate proposed by the present invention;

[0028] Figure 8 This is a structural schematic diagram of the connection relationship between the fixed tube and the rotating rod proposed by the present invention;

[0029] Fig. 9 This is a schematic structural diagram of the position of the sliding limit box in the fixed tube proposed by the present invention;

[0030] Fig.10 This is a schematic diagram of the position structure of the rotating rod and the connecting disk proposed by the present invention;

[0031] Fig.11 This is a schematic diagram of the top view of the connection relationship between the adaptive measuring cylinder and the liquid cylinder proposed by the present invention;

[0032] Fig.12 for Fig.11 The cross-sectional structure diagram of the FF section;

[0033] Fig.13 This is a structural schematic diagram of the connection relationship between the movable plug plate and the plug plate sleeve proposed by the present invention;

[0034] Fig.14 This is a schematic diagram of the structure of the internal parts of the plug plate sleeve proposed by the present invention;

[0035] Fig.15 for Fig.14 A local enlarged view of part G in FIG.

[0036] Fig.16 This is a structural schematic diagram of the connection relationship between the measuring point contact plate and the fixed sleeve proposed by the present invention;

[0037] Fig.17 This is a schematic diagram of the structure of the pulley slot plate and the pulley special-shaped slot proposed by the present invention;

[0038] Fig.18 A schematic diagram of the structure of the pulley limit rod in the initial state and the working state provided by the present invention;

[0039] Fig.19 A schematic diagram of the structure of the limiting pulley in the pulley special-shaped groove proposed by the present invention;

[0040] Fig. 20 A block diagram of the electrical connection relationship of a device for monitoring the displacement of a wall column under a mine proposed by the present invention.

[0041] Among them, 100, laser sensor tube, 200, fixed tube, 300, adaptive measuring tube, 400, limit groove, 101, laser transmitter, 102, laser signal receiver, 103, single chip microcomputer, 104, power supply, 105, alarm light, 106, time relay, 201, sliding limit box, 202, slope contact limit block, 203, button switch, 204, push plate, 205, movable block, 206, adjustment spring, 207, press plate, 208, lifting spring, 209, rotating rod, 210, limit ring, 211, circular ring, 212, spiral slide, 213, motor, 214, connecting plate, 215, fixing hole , 216, fixed limit column, 217, movable block, 301, scale line, 302, measuring plug plate, 303, laser monitoring plate, 304, laser monitoring hole, 305, liquid cylinder, 306, movable plug plate, 307, plug plate sleeve, 308, pulley fixing plate, 309, lifting connecting rod, 310, pulley limit rod, 311, connecting rod limit plate, 312, pulley rotating piece, 313, pulley fixing groove, 314, limiting pulley, 315, connecting rod force triangle plate, 316, fixed sleeve, 317, triangle plate movable seam, 318, measuring point contact plate, 319, rubber adaptation plate, 320, pulley slide groove plate, 321, pulley special-shaped groove.

[0042] Figure 7 In the figure, (a) shows that the pressing plate is in the initial state, and (b) shows that the pressing plate is in the working state;

[0043] Fig.18 In the figure, (a) shows the initial state of the pulley limit rod, at which time the lifting link has not changed and the pulley limit rod is located above the pulley fixing groove, and (b) shows the state where the pulley limit rod is located in the pulley fixing groove, at which time the limit pulley is fixed.

[0044] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0046] Example 1: Please refer to Figure 1 The present embodiment provides a device for monitoring the displacement of a wall column under a mine, comprising a laser sensing tube 100, a fixed tube 200, an adaptive measuring tube 300 and a limiting groove 400. The fixed tubes 200 are fixedly connected at both ends of the laser sensing tube 100, and the adaptive measuring tube 300 is fixedly connected in the middle of the laser sensing tube 100. Both the fixed tube 200 and the adaptive measuring tube 300 are perpendicular to the laser sensing tube 100. The limiting groove 400 is movably clamped at the bottom of the fixed tube 200, and four adaptive measuring tubes 300 are provided.

[0047] like Figure 4-Figure 7 As shown, in this embodiment, a sliding limit box 201 is fixedly provided on the top of the inner wall of the fixed tube 200, and slope contact limit blocks 202 are movably penetrated on both sides of the sliding limit box 201. A button switch 203 is fixedly provided on the top of the inner wall of the sliding limit box 201, and the button switch 203 is located on the fixed tube 200. Push plates 204 are movably provided on both sides of the sliding limit box 201, and the outer side of the pushing plate 204 is fixedly connected to the slope contact limit block 202, and a movable block 205 is movably provided on the inner side of the pushing plate 204. An adjusting spring 206 is fixedly provided between the two movable blocks 205, and the movable block 205 and the adjusting spring 206 move in the sliding limit box 201. A pressing plate 207 is movably provided on the top of the movable block 205, and lifting springs 208 are fixedly connected to the two ends of the top of the pressing plate 207, and the lifting springs 208 are located on both sides of the button switch 203.

[0048] like Figure 1 , Figure 9-11 As shown, in this embodiment, a rotating rod 209 is movably sleeved in the fixed tube 200, a limiting ring 210 is fixedly provided in the fixed tube 200, and the limiting ring 210 is arranged on the side away from the laser sensor tube 100. A circular ring 211 is fixedly provided on the rotating rod 209, and the circular ring 211 is movably connected with the limiting ring 210 to prevent the rotating rod 209 from flying out of the fixed tube 200. A spiral groove 212 is fixedly engraved on the outer surface of the rotating rod 209, and the cross-section of the spiral groove 212 is an inverted trapezoid. The sliding limit box 201 is movably arranged on the spiral groove 212, the slope surface of the slope contact limit block 202 is movably fitted with the inner wall surface of the spiral slide groove 212, one end of the rotating rod 209 is fixedly connected to the output end of the motor 213, the motor 213 is far away from the circular ring 211, and a connecting disk 214 is fixedly provided at the bottom of the motor 213, and four fixing holes 215 are fixedly opened on the outer periphery of the disk surface of the connecting disk 214, a fixed limiting column 216 is fixedly provided at the bottom of the fixed tube 200, and a movable block 217 is fixedly provided at the bottom of the fixed limiting column 216, and the movable block 217 is movably engaged in the limiting groove 400;

[0049] like Figure 1-Figure 3 As shown, in this embodiment, a laser transmitter 101 is fixedly provided at one end of the laser sensor tube 100, and a laser signal receiver 102 is fixedly provided at the other end. A power supply 104 is fixedly connected to the non-emitting port end of the laser transmitter 101, and the power supply 104 supplies power to the entire device. A single-chip microcomputer 103 is fixedly provided on one side of the laser signal receiver 102, and the single-chip microcomputer 103 is close to the fixed tube 200. An alarm light 105 is attached to the outside of the laser sensor tube 100, and a time relay 106 is fixedly provided on the top of the button switch 203. The time relay 106 is located in the fixed tube 200. The button switch 203, the laser transmitter 101, the laser signal receiver 102, the alarm light 105 and the time relay 106 are all electrically connected to the single-chip microcomputer 103. The model of the single-chip microcomputer 103 is STM32F030C8, the model of the laser transmitter 101 is FU635AL5-D12, and the model of the laser signal receiver 102 is GEO-LASER.

[0050] like Figure 11-Figure 15 As shown, in this embodiment, the adaptive measuring cylinder 300 is fixedly engraved with a scale line 301, and a measuring plug plate 302 is movably provided in the adaptive measuring cylinder 300. A laser monitoring plate 303 is fixedly connected to one side of the measuring plug plate 302, and a laser monitoring hole 304 is fixedly opened in the middle position of the laser monitoring plate 303. The laser monitoring plate 303 is located in the laser sensing tube 100. A liquid cylinder 305 is fixedly provided at one end of the adaptive measuring cylinder 300, and the liquid cylinder 305 is away from the laser sensing tube 100. A movable plug plate 306 is movably provided in the liquid cylinder 305, and the liquid cylinder 305 is filled with water, and the water is located between the movable plug plate 306 and the measuring plug plate 302. A plug plate sleeve 307 is fixedly provided on one side of the movable plug plate 306, and the plug plate sleeve 307 is away from the measuring plug plate 302. A pulley fixing plate 308 is fixedly provided on one side of 06, and the pulley fixing plate 308 is located in the plug plate sleeve 307. Three sets of lifting links 309 are movably hinged on the pulley fixing plate 308. A pulley limiting rod 310 is fixedly provided on one end of the lifting link 309. A connecting rod limiting plate 311 is fixedly provided on the pulley fixing plate 308. The pulley limiting rod 310 is movably penetrated on the connecting rod limiting plate 311. A pulley rotating piece 312 is hinged on the pulley fixing plate 308. The pulley rotating piece 312 is located at the bottom of the pulley limiting rod 310. A pulley fixing groove 313 is fixedly provided on the pulley rotating piece 312. One side of the pulley rotating piece 312 is rotatably connected to a limiting pulley 314. A connecting rod force triangle plate 315 is movably provided on the outer side of the plug plate sleeve 307. The connecting rod force triangle plate 315 is arranged on the top of the lifting link 309.

[0051] like Figure 16-Figure 19 As shown, in this embodiment, a fixed sleeve 316 is movably sleeved in the plug plate sleeve 307, a triangular plate movable seam 317 is fixedly opened on the fixed sleeve 316, a measuring point contact plate 318 is fixedly provided on one side of the fixed sleeve 316, the measuring point contact plate 318 is away from the plug plate sleeve 307, a rubber adaptation plate 319 is fixedly provided on one side of the measuring point contact plate 318, the rubber adaptation plate 319 is away from the fixed sleeve 316, a pulley slot plate 320 is fixedly connected to the measuring point contact plate 318, the pulley slot plate 320 is arranged in the fixed sleeve 316, a pulley special-shaped groove 321 is fixedly opened on the pulley slot plate 320, and the limiting pulley 314 is movably moved in the pulley special-shaped groove 321.

[0052] Embodiment 2: This embodiment is based on the above embodiment. Figure 1 , Fig.10 As shown, in this embodiment, the device is fixed as follows: four fixing holes 215 are fixedly opened on the outer periphery of the disk surface of the connecting disk 214, the limiting groove 400 is placed under the fixing tube 200, the rubber adaptation plate 319 is against the irregular concave and convex wall surface, and the rubber material adapts to the concave and convex wall surface.

[0053] Embodiment 3: This embodiment is based on the above embodiment. Figure 1-Figure 20As shown, in this embodiment, the adaptive adjustment method of the device is that the device is connected to the power supply 104, the laser emitter 101, the alarm light 105, and the motor 213 are automatically started, and the sliding limit box 201 slides in the spiral slide groove 212. Under the limitation of the fixed limit column 216 and the movable block 217, the fixed tube 200 rotates and contracts along the rotating rod 209, and the movable block 217 moves toward the wall in the limit groove 400. Due to the action of the pressing plate 207 and the lifting spring 208, the sliding The limit box 201 is always located in the spiral slide groove 212, and the limit pulley 314 moves in the pulley shaped groove 321, driving the fixed sleeve 316 to move in the direction of the movable plug plate 306. When it cannot move further, the fixed tube 200 continues to shrink, and the movable plug plate 306 is pushed further in the direction of the measuring plug plate 302. The edge of the liquid cylinder 305 touches the connecting rod force triangle plate 315, and the connecting rod force triangle plate 315 is pressed, and the three sets of lifting connecting rods 309 are moved in the direction of The laser monitoring plate 303 is located at the inner edge of the laser sensing tube 100 and is located in a straight line. The motor 213 continues to rotate, and the fixed tube 200 cannot continue to shrink. The ramp contact limit block 202 drives the push plate 204 to move inward under the thrust of the spiral groove 212, squeezing the movable block 205, so that the movable block 205 is displaced, driving the pressing plate 204 to move inward. 7 is lifted, the lifting spring 208 contracts, the pressing plate 207 touches the button switch 203, the motor 213 stops rotating immediately, the time relay 106 gives a signal to the single-chip microcomputer 103, and the single-chip microcomputer 103 controls the motor 213 to move in the opposite direction for one second. The one-second displacement makes the laser monitoring holes 304 all located in the middle position of the laser sensor tube 100, and then the laser signal receiver 102 is started, the laser passes through all the laser monitoring holes 304, and the laser signal receiver 102 receives the laser signal.

[0054] Embodiment 4: This embodiment is based on the above embodiment. Figure 1-Figure 4 , Figure 11-Figure 12 As shown, in this embodiment, the displacement monitoring method of the device is that the monitoring point is displaced and exceeds the length of the laser monitoring hole 304, driving the movable plug plate 306 and the measuring plug plate 302 to displace. Due to the displacement of the measuring plug plate 302, the laser monitoring plate 303 is displaced, making it impossible for the laser to pass through the laser monitoring hole 304, and the laser signal receiver 102 transmits the signal to the single-chip microcomputer 103, and the single-chip microcomputer 103 controls the alarm light 105 to light up.

[0055] Embodiment 5: This embodiment is based on the above embodiment. Fig. 20As shown, in this embodiment, the circuit operation mode of the device is: the device is connected to the power supply 104, the motor 213 starts to rotate forward, the button switch 203 is pressed, the single-chip microcomputer 103 controls the time relay 106 and the motor 213, so that the motor 213 reverses for one second, and when the laser signal receiver 102 cannot receive the laser signal, the single-chip microcomputer 103 controls the alarm light 105 to light up.

[0056] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A device for monitoring the displacement of a wall column under a mine, comprising a laser sensing tube (100), a fixing tube (200), an adaptive measuring tube (300) and a limiting groove (400), characterized in that: The two ends of the laser sensing tube (100) are fixedly connected to fixed tubes (200), the middle of the laser sensing tube (100) is fixedly connected to an adaptive measuring tube (300), the fixed tube (200) and the adaptive measuring tube (300) are both perpendicular to the laser sensing tube (100), and the limiting groove (400) is movably clamped at the bottom of the fixed tube (200); A sliding limit box (201) is fixedly provided on the top of the inner wall of the fixed tube (200), and slope contact limit blocks (202) are movably provided on both sides of the sliding limit box (201). A button switch (203) is fixedly provided on the top of the inner wall of the sliding limit box (201), and the button switch (203) is located on the fixed tube (200). Push plates (204) are movably provided on both sides of the inner wall of the sliding limit box (201), and the outer sides of the push plates (204) are fixedly connected to the slope contact limit blocks (202). Then, a movable block (205) is movably provided inside the push plate (204), an adjustment spring (206) is fixedly provided between the two movable blocks (205), the movable block (205) and the adjustment spring (206) move in the sliding limit box (201), a pressing plate (207) is movably provided on the top of the movable block (205), and lifting springs (208) are fixedly connected at both ends of the top of the pressing plate (207), and the lifting springs (208) are located on both sides of the button switch (203); A rotating rod (209) is movably sleeved in the fixed tube (200), a limiting ring (210) is fixedly provided in the fixed tube (200), the limiting ring (210) is arranged on a side away from the laser sensor tube (100), a circular ring (211) is fixedly provided on the rotating rod (209), the circular ring (211) is movably connected to the limiting ring (210) in a staggered manner, a spiral groove (212) is fixedly engraved on the outer surface of the rotating rod (209), the cross section of the spiral groove (212) is an inverted trapezoid, the sliding limiting box (201) is movably arranged on the spiral groove (212), and the slope contacts the limiting block The slope surface of (202) is movably fitted with the inner wall surface of the spiral slide groove (212); one end of the rotating rod (209) is fixedly connected to the output end of the motor (213); the motor (213) is away from the circular ring (211); a connecting disk (214) is fixedly provided at the bottom of the motor (213); a fixing hole (215) is fixedly opened on the outer periphery of the disk surface of the connecting disk (214); a fixed limiting column (216) is fixedly provided at the bottom of the fixed tube (200); a movable block (217) is fixedly provided at the bottom of the fixed limiting column (216); and the movable block (217) is movably engaged in the limiting groove (400); The adaptive measuring cylinder (300) is fixedly provided with scale lines (301), a measuring plug plate (302) is movably provided in the adaptive measuring cylinder (300), a laser monitoring plate (303) is fixedly connected to one side of the measuring plug plate (302), a laser monitoring hole (304) is fixedly opened in the middle of the laser monitoring plate (303), the laser monitoring plate (303) is located in the laser sensing tube (100), a liquid cylinder (305) is fixedly provided at one end of the adaptive measuring cylinder (300), the liquid cylinder (305) is away from the laser sensing tube (100), a movable plug plate (306) is movably provided in the liquid cylinder (305), a plug plate sleeve (307) is fixedly provided on one side of the movable plug plate (306), the plug plate sleeve (307) is away from the measuring plug plate (302), a pulley fixing plate (308) is fixedly provided on one side of the movable plug plate (306), the pulley fixing plate (308) is fixedly provided on one side of the movable plug plate (306), The plate (308) is located in the plug plate sleeve (307), and a plurality of lifting connecting rods (309) are movably hinged on the pulley fixing plate (308). A pulley limiting rod (310) is fixedly provided at one end of the lifting connecting rod (309). A connecting rod limiting plate (311) is fixedly provided on the pulley fixing plate (308). The pulley limiting rod (310) is movably inserted into the connecting rod limiting plate (311). A pulley is hinged on the pulley fixing plate (308). a rotating piece (312), the pulley rotating piece (312) being located at the bottom of the pulley limiting rod (310), the pulley rotating piece (312) being fixedly provided with a pulley fixing groove (313), one side of the pulley rotating piece (312) being rotatably connected to a limiting pulley (314), a connecting rod force triangle plate (315) being movably provided on the outer side of the plug plate sleeve (307), and the connecting rod force triangle plate (315) being arranged at the top of the lifting connecting rod (309); A fixed sleeve (316) is movably sleeved in the plug plate sleeve (307), a triangular plate movable seam (317) is fixedly opened on the fixed sleeve (316), a measuring point contact plate (318) is fixedly provided on one side of the fixed sleeve (316), the measuring point contact plate (318) is away from the plug plate sleeve (307), a rubber adaptable plate (319) is fixedly provided on one side of the measuring point contact plate (318), the rubber adaptable plate (319) is away from the fixed sleeve (316), a pulley groove plate (320) is fixedly connected to the measuring point contact plate (318), the pulley groove plate (320) is arranged in the fixed sleeve (316), a pulley special-shaped groove (321) is fixedly opened on the pulley groove plate (320), and the limiting pulley (314) is movable in the pulley special-shaped groove (321).

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