Coal mine water inrush early warning and monitoring device

Abstract

The utility model discloses a coal mine water inrush early warning and monitoring device, and relates to the technical field of coal mine safety. The water inrush early-warning device comprises a U-shaped frame, a water inrush early-warning assembly is arranged on the inner side of the U-shaped frame, and vibration early-warning assemblies are arranged on the two sides of the U-shaped frame. Vertical plates in the water inrush early warning assembly are fixedly connected to the inner walls of the two sides of a U-shaped frame correspondingly, transverse plates are movably connected between the adjacent vertical plates, a sleeve rod rotationally penetrates through the top of the U-shaped frame, the outer wall of the upper end of the sleeve rod is sleeved with a rubber sleeve, and a first threaded rod is arranged in the sleeve rod in a threaded and sleeved mode. The sleeve rod drives the transverse plate to move vertically, the moving block drives the mounting cylinder to move transversely, the problem that the mounting position of the water quality sensor is inconvenient to adjust in the prior art is solved, meanwhile, the L-shaped plate is driven by the connecting plate to move, and the mounting position of the water quality sensor is adjusted conveniently. And external force is applied to the vibration sensor on the mounting block through the L-shaped plate, so that the problem that vibration early warning can only be carried out in one direction in the prior art is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine safety, and particularly relates to a coal mine water inrush early warning and monitoring device. Background Technique

[0002] A coal mine is a reasonable space excavated by humans when mining geological layers rich in coal, usually including roadways, shafts, and mining faces, etc. During the coal mine mining process, since the mine is generally underground, during the mining process, the mine may experience phenomena such as collapse and water inrush. To ensure the safety of workers' lives, various safety devices are usually installed in the mine. For example, the water inrush early warning and monitoring device is one of the most common safety devices in the mine, used to prevent water inrush phenomena;

[0003] A document with the publication number of CN113203433A discloses a coal mine underground water inrush early warning and monitoring device and method. The device includes a diversion cover, a first filter plate, an installation cylinder, a second filter plate, an installation platform assembly, a rotating column, a first spiral blade, a water quality sensor, a central controller, an audible and visual alarm, an installation cover, and a fixing frame; the diversion cover is a hemispherical cover structure, and the direction of the cover bulge is opposite to the water flow direction. The outer peripheral surface of the diversion cover is provided with diversion grooves, and the bottom of the diversion grooves is provided with a plurality of water inlet holes. The diversion cover, the first filter plate, the installation cylinder, and the second filter plate are coaxially arranged in sequence along the water flow direction. The diversion cover is rotatably connected to the first filter plate, and the end of the diversion groove is aligned with the outer peripheral surface of the first filter plate. The first filter plate, the installation cylinder, and the second filter plate are connected in sequence;

[0004] However, it still has the following drawbacks in actual use:

[0005] 1. In the above water inrush early warning and monitoring device, an installation cover is installed inside the fixing frame, and a diversion cover is installed at the bottom of the installation cover. A water quality sensor is arranged inside the diversion cover. The water quality in the drainage ditch is detected by the water quality sensor inside the diversion cover, thereby realizing the water inrush early warning work. However, during the use process, the installation positions of the diversion cover and the water quality sensor are fixed and unchangeable, and it is not convenient to adjust the positions of the diversion cover and the water quality sensor according to the actual situation of the drainage ditch;

[0006] 2. In the above water inrush early warning and monitoring device, a vibration monitoring mechanism is also arranged on the fixing frame. The vibration monitoring mechanism includes a fixing plate, a vibration sensor, an installation plate, a fixing table, a screw, a knob, and a guide rod. The vibration of the mine is detected in real time by the vibration sensor. However, during the use process, it can only perform vibration monitoring in one direction, and the vibration sensor lacks a protection structure, resulting in easy damage due to external forces.

[0007] Therefore, we provide a coal mine water inrush early warning and monitoring device to solve the above problems. Content of the Utility Model

[0008] The purpose of the present utility model is to provide a coal mine water inrush early warning and monitoring device. By driving the cross plate to move vertically through the sleeve rod and driving the installation cylinder to move horizontally through the moving block, the problem that the existing device is not convenient to adjust the installation position of the water quality sensor is solved. At the same time, by driving the L-shaped plate to move through the connecting plate and applying an external force to the vibration sensor on the installation block through the L-shaped plate, the problem that the existing device can only give vibration early warning in one direction is solved.

[0009] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0010] The present utility model is a coal mine water inrush early warning and monitoring device, including a U-shaped frame. A water inrush early warning component is arranged inside the U-shaped frame, and vibration early warning components are arranged on both sides of the U-shaped frame;

[0011] The vertical plates in the water inrush early warning component are respectively fixedly connected to the inner walls on both sides of the U-shaped frame. A cross plate is movably connected between adjacent vertical plates. A sleeve rod rotatably penetrates through the top of the U-shaped frame. A rubber sleeve is sleeved on the outer wall of the upper end of the sleeve rod. A first threaded rod is threadedly sleeved inside the sleeve rod. The bottom end of the first threaded rod is fixedly connected to the center position of the upper surface of the cross plate. The lower surface of the cross plate is movably connected with a moving block along the horizontal direction. The bottom of the moving block is welded with an installation disc. The bottom of the installation disc is rotatably connected with a turntable. The bottom of the turntable is welded with an installation cylinder;

[0012] The installation boxes in the vibration early warning component are respectively fixedly connected to the outer walls on both sides of the U-shaped frame. A through groove is opened on one outer wall of the installation box. An installation block is fixedly connected inside the installation box. Vibration sensors are fixedly connected to one outer wall and the top of the installation block. A lifting plate is movably connected in the through groove along the vertical direction. A movable rod movably penetrates through the outer wall of the lifting plate. One end of the movable rod located outside the installation box is welded with a connecting plate. One end of the movable rod located inside the installation box is welded with an L-shaped plate. A second spring is sleeved on the outside of the movable rod. The two ends of the second spring are respectively fixedly connected to the outer walls of the lifting plate and the connecting plate close to each other.

[0013] The further setting of the present utility model is that grooves are vertically opened on the outer walls of the vertical plates close to the cross plate. Convex blocks are welded on both outer walls of the cross plate. The free ends of the convex blocks are movably connected inside the grooves.

[0014] A further setting of the utility model is as follows: mounting plates are welded to both sides of the lower surface of the horizontal plate. A first sliding rod is fixedly connected between the mounting plates. A moving block is slidably sleeved on the outer wall of the first sliding rod. A mounting bracket is welded to the front end face of the moving block. A second threaded rod is threadedly penetrated through the end face of the mounting bracket. A knob is fixedly connected to the front end of the second threaded rod. A plurality of first positioning holes are equidistantly arranged in the transverse direction on the front end face of the horizontal plate. The rear end of the second threaded rod is threadedly connected inside one of the first positioning holes.

[0015] A further setting of the utility model is as follows: a bearing is fixedly connected to the bottom of the mounting disc. A rotating shaft is installed inside the bearing. The bottom end of the rotating shaft is welded to the top of the turntable. A plurality of second positioning holes are equidistantly arranged in the circumferential direction on the outer side face of the turntable.

[0016] A further setting of the utility model is as follows: a chute is opened at the front end of the bottom of the mounting disc. A second sliding rod is fixedly connected inside the chute. A slider is slidably sleeved on the outer wall of the second sliding rod. A positioning plate is welded to the bottom of the slider. A positioning rod is welded to the rear end face of the positioning plate. The rear end of the positioning rod is in clearance fit inside one of the second positioning holes. A first spring is sleeved outside the second sliding rod. Two ends of the first spring are respectively fixedly connected to one inner wall of the chute and one outer wall of the slider.

[0017] A further setting of the utility model is as follows: filter nets are fixedly connected to both the front and rear ends of the mounting cylinder. A water quality sensor is fixedly connected to the central position inside the mounting cylinder.

[0018] A further setting of the utility model is as follows: a control box is fixedly connected to the rear end face of the moving block. An audible and visual alarm is fixedly connected to the top of the control box.

[0019] A further setting of the utility model is as follows: L-shaped brackets are welded to both outer walls of the U-shaped bracket. The bottom of the mounting box is fixedly connected to the horizontal arm of the L-shaped bracket. A front cover plate is snap-connected to the front end face of the mounting box.

[0020] A further setting of the utility model is as follows: third sliding rods are fixedly connected vertically to both the front and rear ends inside the through groove. The third sliding rods respectively penetrate through the front and rear ends of the surface of the lifting plate movably. Second springs are fixedly connected to the central positions of both the upper and lower surfaces of the lifting plate. The ends of the second springs far away from the lifting plate are respectively fixedly connected to the top and bottom inside the through groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model adjusts the installation height of the installation cylinder by setting a water inrush warning component. When it is necessary to adjust the installation height of the installation cylinder, rotate the sleeve rod. Under the action of the threaded connection between the sleeve rod and the first threaded rod, the first threaded rod exerts an upward vertical force on the cross plate, so that the cross plate moves vertically upward, realizing the adjustment of the height of the installation cylinder. When it is necessary to adjust the horizontal position of the installation cylinder, rotate the knob. The knob drives the second threaded rod to rotate synchronously. Under the action of the threaded connection between the second threaded rod and the installation frame, the rear end of the second threaded rod moves out of the inner part of the first positioning hole and exerts an external force on the moving block, so that the moving block drives the installation cylinder to move horizontally, realizing the adjustment of the horizontal installation position of the installation cylinder, facilitating the adjustment of the installation position of the water quality sensor, and facilitating the monitoring of the water quality in the mine drainage ditch, thus facilitating the real-time monitoring of whether there is a water inrush phenomenon in the mine.

[0023] 2. The utility model sets a vibration warning component. When there is a vertical vibration on the inner wall of the mine, the connecting plate drives the lifting plate to move vertically upward through the movable rod, so that the movable rod drives the L-shaped plate to move vertically upward. An external force is applied to the vibration sensor on the top of the installation block through the horizontal arm of the L-shaped plate, thus realizing the vertical vibration monitoring of the inner wall of the mine. When there is a horizontal vibration on the inner wall of the mine, the connecting plate drives the L-shaped plate to move horizontally through the movable rod. An external force is applied to the vibration sensor on the outer wall of one side of the installation block through the vertical arm of the L-shaped plate, thus realizing the horizontal vibration monitoring of the inner wall of the mine, facilitating the multi-directional vibration monitoring of the inner wall of the coal mine, and improving the safety.

[0024] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic diagram of the overall structure of a coal mine water inrush warning and monitoring device;

[0027] Figure 2 It is a schematic diagram of the structure of the water inrush warning component of the present utility model;

[0028] Figure 3 It is a schematic diagram of the installation between the vertical plate and the cross plate of the present utility model;

[0029] Figure 4 The following is a bottom view structure diagram of the moving block of the present utility model;

[0030] Figure 5 The following is an exploded structure diagram of the positioning plate of the present utility model;

[0031] Figure 6 The following is a right view sectional view of the turntable and the mounting cylinder of the present utility model;

[0032] Figure 7 The following is a structural schematic diagram of the vibration warning component of the present utility model;

[0033] Figure 8 The following is an exploded structure diagram of the mounting box of the present utility model;

[0034] Figure 9 The following is a structural schematic diagram of the lifting plate of the present utility model;

[0035] Figure 10 The following is a structural schematic diagram of the connecting plate of the present utility model.

[0036] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0037] 1 - U-shaped frame, 2 - water inrush warning component, 201 - vertical plate, 201a - groove, 202 - horizontal plate, 202a - convex block, 202b - mounting plate, 202c - first slide bar, 202d - first positioning hole, 203 - sleeve bar, 203a - rubber sleeve, 203b - first threaded rod, 204 - moving block, 204a - mounting frame, 204b - second threaded rod, 204c - knob, 205 - mounting disc, 205a - bearing, 205b - chute, 205c - second slide bar, 205d - slider, 205e - positioning plate, 205f - positioning rod, 205g - first spring, 206 - turntable, 206a - rotating shaft, 206b - second positioning hole, 207 - mounting cylinder, 207a - filter screen, 207b - water quality sensor, 208 - control box, 208a - sound and light alarm, 3 - vibration warning component, 301 - mounting box, 301a - L-shaped frame, 301b - front cover plate, 301c - through groove, 302 - mounting block, 303 - vibration sensor, 304 - lifting plate, 304a - third slide bar, 304b - second spring, 305 - connecting plate, 305a - movable rod, 305b - L-shaped plate. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0039] Embodiment 1

[0040] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown in, the first embodiment of the present utility model provides a coal mine water inrush early warning and monitoring device, including a U-shaped frame 1. A water inrush early warning component 2 is arranged inside the U-shaped frame 1. The water inrush early warning component 2 includes a vertical plate 201, a horizontal plate 202, a sleeve rod 203, a moving block 204, a mounting plate 205, a turntable 206 and a mounting cylinder 207. The sleeve rod 203 drives the horizontal plate 202 to move vertically between the vertical plates 201, and the moving block 204 drives the mounting plate 205 to move horizontally, solving the problem that the existing installation position of the water quality sensor 207b is not easy to adjust.

[0041] Specifically, the vertical plates 201 are respectively fixedly connected to the inner walls of both sides of the U-shaped frame 1. The horizontal plate 202 is movably connected between the adjacent vertical plates 201. The sleeve rod 203 rotatably penetrates through the top of the U-shaped frame 1. A rubber sleeve 203a is sleeved on the outer wall of the upper end of the sleeve rod 203. A first threaded rod 203b is threadedly sleeved inside the sleeve rod 203. The bottom end of the first threaded rod 203b is fixedly connected to the center position of the upper surface of the horizontal plate 202. The lower surface of the horizontal plate 202 is movably connected with the moving block 204 along the horizontal direction. The bottom of the moving block 204 is welded with a mounting plate 205. The bottom of the mounting plate 205 is rotatably connected with a turntable 206. The bottom of the turntable 206 is welded with a mounting cylinder 207. The vertical plate 201 is used to movably install the horizontal plate 202 vertically inside the U-shaped frame 1. The horizontal plate 202 is used to movably install the moving block 204. The sleeve rod 203 and the first threaded rod 203b are used to drive the horizontal plate 202 to move vertically. The rubber sleeve 203a is convenient for rotating the sleeve rod 203. The moving block 204 is used to drive the mounting cylinder 207 to move horizontally. The mounting plate 205 and the turntable 206 are used to drive the mounting cylinder 207 to rotate. The mounting cylinder 207 is used to detect the water quality in the drainage ditch, and judge whether there is a water inrush situation according to the water quality change.

[0042] Further, grooves 201a are vertically formed on the outer walls of the vertical plates 201 close to the horizontal plate 202, and bumps 202a are welded on both outer walls of the horizontal plate 202. The free ends of the bumps 202a are movably connected to the inside of the grooves 201a;

[0043] Mounting plates 202b are welded on both sides of the lower surface of the horizontal plate 202. A first sliding rod 202c is fixedly connected between the mounting plates 202b. A moving block 204 is slidably sleeved on the outer wall of the first sliding rod 202c. An installation bracket 204a is welded on the front end face of the moving block 204. A second threaded rod 204b is threadedly penetrated through the end face of the installation bracket 204a. The front end of the second threaded rod 204b is fixedly connected to a knob 204c. A plurality of first positioning holes 202d are horizontally and equidistantly formed on the front end face of the horizontal plate 202. The rear end of the second threaded rod 204b is threadedly connected to the inside of one of the first positioning holes 202d;

[0044] A bearing 205a is fixedly connected to the bottom of the mounting disc 205. A rotating shaft 206a is installed inside the bearing 205a. The bottom end of the rotating shaft 206a is welded to the top of the turntable 206. A plurality of second positioning holes 206b are circumferentially and equidistantly formed on the outer side surface of the turntable 206;

[0045] A chute 205b is formed at the front end of the bottom of the mounting disc 205. A second sliding rod 205c is fixedly connected to the inside of the chute 205b. A slider 205d is slidably sleeved on the outer wall of the second sliding rod 205c. A positioning plate 205e is welded to the bottom of the slider 205d. A positioning rod 205f is welded to the rear end face of the positioning plate 205e. The rear end of the positioning rod 205f is in clearance fit with the inside of one of the second positioning holes 206b. A first spring 205g is sleeved on the outside of the second sliding rod 205c. The two ends of the first spring 205g are respectively fixedly connected to one inner wall of the chute 205b and one outer wall of the slider 205d;

[0046] Filter meshes 207a are fixedly connected to both the front and rear ends of the installation cylinder 207. A water quality sensor 207b is fixedly connected to the central position inside the installation cylinder 207;

[0047] A control box 208 is fixedly connected to the rear end face of the moving block 204. An audible and visual alarm 208a is fixedly connected to the top of the control box 208.

[0048] The operation process of this embodiment is as follows: When it is necessary to adjust the installation height of the installation cylinder 207, rotate the sleeve rod 203. Under the action of the threaded connection between the sleeve rod 203 and the first threaded rod 203b, the first threaded rod 203b exerts an upward force on the cross plate 202, so that the cross plate 202 moves upward vertically, realizing the adjustment of the height of the installation cylinder 207. When it is necessary to adjust the horizontal position of the installation cylinder 207, rotate the knob 204c. The knob 204c drives the second threaded rod 204b to rotate synchronously. Under the action of the threaded connection between the second threaded rod 204b and the installation frame 204a, the rear end of the second threaded rod 204b moves out of the internal part of the first positioning hole 202d and exerts an external force on the moving block 204, so that the moving block 204 drives the installation cylinder 207 to move horizontally, realizing the adjustment of the horizontal installation position of the installation cylinder 207. The water quality sensor 207b in the installation cylinder 207 is used to detect the water quality in the drainage ditch, and at the same time, according to the change of the water quality in the drainage ditch, it can be judged whether there is a water inrush phenomenon in the mine.

[0049] Embodiment 2

[0050] Please refer to Figure 1 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown in, this is the second embodiment of the present utility model. This embodiment is based on the previous embodiment, but different from the previous embodiment: Vibration warning components 3 are arranged on both sides of the U-shaped frame 1. The vibration warning component 3 includes an installation box 301, a vibration sensor 303, a lifting plate 304 and a connecting plate 305. The vertical and horizontal movable installation of the L-shaped plate 305b is realized through the lifting plate 304 and the connecting plate 305, and external forces are respectively applied to the two vibration sensors 303 through the vertical arm and the horizontal arm of the L-shaped plate 305b, solving the problem that the existing vibration monitoring is not convenient for multi-directional vibration monitoring.

[0051] Specifically, the installation boxes 301 are respectively fixedly connected to the outer walls on both sides of the U-shaped frame 1. A through groove 301c is formed in one outer wall of the installation box 301. An installation block 302 is fixedly connected inside the installation box 301. Vibration sensors 303 are fixedly connected to both the outer wall and the top of one side of the installation block 302. A lifting plate 304 is vertically movably connected inside the through groove 301c. A movable rod 305a movably penetrates through the outer wall of the lifting plate 304. A connecting plate 305 is welded to one end of the movable rod 305a located outside the installation box 301. An L-shaped plate 305b is welded to one end of the movable rod 305a located inside the installation box 301. A second spring 304b is sleeved outside the movable rod 305a. The two ends of the second spring 304b are respectively fixedly connected to the outer walls of the lifting plate 304 and the connecting plate 305 that are close to each other. The installation box 301 is used to install and protect the vibration sensor 303. The installation block 302 is used to install the two vibration sensors 303 inside the installation box 301. The lifting plate 304 is used to vertically movably install the movable rod 305a. The connecting plate 305 abuts against or is bolted to the inner wall of the mine. The movable rod 305a is used to connect the connecting plate 305 and the L-shaped plate 305b. The L-shaped plate 305b is used to transmit and connect the vibration sensor 303 and the connecting plate 305. Thus, the vibration condition of the inner wall of the mine can be monitored through the vibration sensor 303.

[0052] Further, L-shaped frames 301a are welded to the outer walls on both sides of the U-shaped frame 1. The bottom of the installation box 301 is fixedly connected to the horizontal arm of the L-shaped frame 301a. A front cover plate 301b is snap-connected to the front end face of the installation box 301;

[0053] Third sliding rods 304a are vertically and fixedly connected to the front and rear ends inside the through groove 301c. The third sliding rods 304a respectively movably penetrate through the front and rear ends of the surface of the lifting plate 304. Second springs 304b are fixedly connected to the central positions of the upper and lower surfaces of the lifting plate 304. The ends of the second springs 304b far from the lifting plate 304 are respectively fixedly connected to the top and bottom inside the through groove 301c.

[0054] The remaining structures are the same as those in Embodiment 1.

[0055] The operation process of this embodiment is as follows: The connecting plate 305 abuts against or is installed on the inner wall of the mine through bolts. When there is a vertical vibration on the inner wall of the mine, the connecting plate 305 drives the lifting plate 304 to move vertically through the movable rod 305a, so that the movable rod 305a drives the L-shaped plate 305b to move vertically. An external force is applied to the vibration sensor 303 on the top of the mounting block 302 through the horizontal arm of the L-shaped plate 305b, thereby realizing the vertical vibration monitoring of the inner wall of the mine. When there is a horizontal vibration on the inner wall of the mine, the connecting plate 305 drives the L-shaped plate 305b to move horizontally through the movable rod 305a, and an external force is applied to the vibration sensor 303 on the outer wall of one side of the mounting block 302 through the vertical arm of the L-shaped plate 305b, thereby realizing the horizontal vibration monitoring of the inner wall of the mine.

[0056] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0057] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A coal mine water inrush early warning monitoring device, comprising a U-shaped frame (1), characterized in that: A water inrush warning component (2) is arranged on the inner side of the U-shaped frame (1), and vibration warning components (3) are arranged on both sides of the U-shaped frame (1); The vertical plates (201) in the water inrush warning assembly (2) are respectively fixedly connected to the inner walls of both sides of the U-shaped frame (1), and the vertical plates (201) are movably connected to the horizontal plates (202) between the adjacent vertical plates (201); a sleeve rod (203) is rotatably penetrated through the top of the U-shaped frame (1), and the outer wall of the upper end of the sleeve rod (203) is sleeved with a rubber sleeve (203a); the internal thread of the sleeve rod (203) is sleeved with a first threaded rod (203b), and the bottom end of the first threaded rod (203b) is fixedly connected to the center position of the upper surface of the horizontal plate (202); the lower surface of the horizontal plate (202) is movably connected to a moving block (204) in the transverse direction, and a mounting plate (205) is welded to the bottom of the moving block (204); the bottom of the mounting plate (205) is rotatably connected to a rotating disk (206), and a mounting cylinder (207) is welded to the bottom of the rotating disk (206); The installation box (301) in the vibration warning component (3) is respectively fixedly connected to the outer walls on both sides of the U-shaped frame (1), and a through slot (301c) is provided on one outer wall of the installation box (301), a mounting block (302) is fixedly connected inside the installation box (301), and a vibration sensor (303) is fixedly connected to one outer wall and the top of the mounting block (302), and a lifting plate (304) is movably connected to the inside of the through slot (301c) in a vertical direction, and the lifting plate (304) is movable in a vertical direction. A movable rod (305a) is movably inserted through the outer wall, a connecting plate (305) is welded to one end of the movable rod (305a) located outside the installation box (301), and an L-shaped plate (305b) is welded to one end of the movable rod (305a) located inside the installation box (301), a second spring (304b) is sleeved on the outer side of the movable rod (305a), and two ends of the second spring (304b) are respectively fixedly connected to the outer walls of the lifting plate (304) and the connecting plate (305) close to each other.

2. A coal mine water inrush early warning monitoring device according to claim 1, characterized in that: The outer wall of the vertical plate (201) close to the horizontal plate (202) is provided with a groove (201a) in the vertical direction, and the outer walls on both sides of the horizontal plate (202) are welded with a protrusion (202a), and the free ends of the protrusion (202a) are movably connected to the inside of the groove (201a).

3. A coal mine water inrush early warning monitoring device according to claim 1, characterized in that: Mounting plates (202b) are welded on both sides of the lower surface of the transverse plate (202), and a first sliding rod (202c) is fixedly connected between the mounting plates (202b); the moving block (204) is slidably sleeved on the outer wall of the first sliding rod (202c), and a mounting frame (204a) is welded on the front end surface of the moving block (204); a second threaded rod (204b) is threadedly penetrated on the end surface of the mounting frame (204a), and a knob (204c) is fixedly connected to the front end of the second threaded rod (204b); a plurality of first positioning holes (202d) are opened on the front end surface of the transverse plate (202) at equal intervals in the horizontal direction, and the rear end of the second threaded rod (204b) is threadedly connected to the inside of one of the first positioning holes (202d).

4. A coal mine water inrush early warning monitoring device according to claim 1, characterized in that: A bearing (205a) is fixedly connected to the bottom of the mounting plate (205), and a rotating shaft (206a) is installed inside the bearing (205a). The bottom end of the rotating shaft (206a) is welded to the top of the rotating plate (206), and a plurality of second positioning holes (206b) are provided on the outer surface of the rotating plate (206) at equal intervals in the circumferential direction.

5. A coal mine water inrush early warning monitoring device according to claim 4, characterized in that: A slide groove (205b) is provided at the front end of the bottom of the mounting plate (205), and a second slide rod (205c) is fixedly connected inside the slide groove (205b), a slider (205d) is slidably sleeved on the outer wall of the second slide rod (205c), and a positioning plate (205e) is welded to the bottom of the slider (205d), a positioning rod (205f) is welded on the rear end surface of the positioning plate (205e), and the rear end of the positioning rod (205f) is clearance-fitted inside one of the second positioning holes (206b), a first spring (205g) is sleeved on the outer side of the second slide rod (205c), and two ends of the first spring (205g) are respectively fixedly connected to one side inner wall of the slide groove (205b) and one side outer wall of the slider (205d).

6. A coal mine water inrush early warning monitoring device according to claim 1, characterized in that: The front and rear ends of the installation cylinder (207) are fixedly connected to the filter screen (207a), and the inner center position of the installation cylinder (207) is fixedly connected to the water quality sensor (207b).

7. A coal mine water inrush early warning monitoring device according to claim 3, characterized in that: A control box (208) is fixedly connected to the rear end surface of the moving block (204), and an audible and visual alarm (208a) is fixedly connected to the top of the control box (208).

8. A coal mine water inrush early warning monitoring device according to claim 1, characterized in that: L-shaped frames (301a) are welded to both side outer walls of the U-shaped frame (1), and the bottom of the installation box (301) is fixedly connected to the horizontal support arms of the L-shaped frame (301a), and a front cover plate (301b) is clamped on the front end surface of the installation box (301).

9. A coal mine water inrush early warning monitoring device according to claim 1, characterized in that: The front and rear ends of the through slot (301c) are both vertically fixedly connected to a third slide bar (304a), and the third slide bar (304a) movably penetrates the front and rear ends of the surface of the lifting plate (304), and the center positions of the upper and lower surfaces of the lifting plate (304) are both fixedly connected to a second spring (304b), and one end of the second spring (304b) away from the lifting plate (304) is respectively fixedly connected to the top and bottom of the inner side of the through slot (301c).

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