Unattended safety early warning system of underground coal mine drainage system

Abstract

The invention discloses an unattended safety early warning system for an underground coal mine drainage system, and belongs to the technical field of underground coal mine drainage systems. The unattended safety early warning system is provided with an underground pool and a laser range finder assembled with the underground pool; comprising a sliding block which slides in a lifting groove formed in the inner surface of the underground pool, a lifting frame is installed on the outer surface of the sliding block, and an embedded part is connected to the inner surface of the lifting frame through a limiting clamping mechanism. According to the unattended safety pre-warning system for the underground coal mine drainage system, the underground pool is arranged, underground coal mine water is gathered and treated, the air bag adjusted through lifting protection is matched with the laser range finder to monitor the water level, mechanical and electronic matching is adopted for monitoring and pre-warning, and water pumps of different numbers and groups are controlled to work according to the height of the water level; the cleaning frame assembled by the water suction pipe and the material blocking frame is cleaned, blockage of the water pump is avoided, and when the water pump works, the working environment is monitored according to the temperature, and the early warning and monitoring effect is improved.

Description

Technical Field

[0001] This invention relates to the field of underground drainage system technology in coal mines, specifically to an unattended safety early warning system for underground drainage systems in coal mines. Background Technology

[0002] Coal mine underground drainage systems are one of the core pieces of equipment used to ensure safe production in mines. They can achieve unattended safety early warning through automated monitoring, intelligent analysis, and graded early warning, thereby enabling remote monitoring and effective monitoring in case of malfunctions. However, during use, it is difficult to control the stability of the monitoring, which affects the stability of the operation.

[0003] To overcome the aforementioned shortcomings, existing technology (Chinese patent application CN202222294267.9, filed on 2022-08-31) provides a coal mine underground water control early warning device. This device utilizes a plate, cylinder, fixed frame, positioning rod, connecting block, spring, water collection cylinder, and alarm control switch in conjunction with each other. The triggering mechanism of the early warning device relies on the gravity of the accumulated water. Simultaneously, the early warning device can also collect leaked water. Compared to relying on buoyancy to trigger the early warning mechanism, this method can effectively control water flow in water. The system triggers as soon as leakage occurs, exhibiting low dependence on the warning environment. Through the coordinated use of a water collection hopper, a first sealing ring, an annular cover, a ring cylinder, and a second sealing ring, the system can seal the water collection cylinder from the cylinder body after the alarm control switch is triggered, preventing water from overflowing from the collection cylinder into the cylinder body and affecting the alarm control switch. Furthermore, existing technology (Chinese patent application CN202411559110.1, filed on 2024-11-04) describes a coal mine underground water inrush early warning and monitoring device, which uses a water collection hood with a... The device has drainage holes, which can easily drain small amounts of water from underground water inrush points in coal mines. This effectively prevents the triggering of the warning mechanism inside the detection bend, thus facilitating early warning monitoring and handling of underground water inrushes. In contrast, existing technology (Chinese patent application CN202422883147.1, filed on 2024-11-26) describes an underground drainage early warning device for coal mines. By starting a motor, a thick shaft rotates, which in turn rotates a thin shaft via a pulley and transmission belt, driving the paddle to rotate and expel impurities from the drainage pipe, reducing the hassle of unblocking. While existing technology can perform early warning, the air flotation monitoring device is easily damaged by residual rocks in the water, making quick replacement difficult and affecting early warning safety. Furthermore, the pumping equipment is prone to damage due to high temperatures or prolonged operation, affecting drainage efficiency and potentially compromising early warning effectiveness in dangerous situations.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing unattended safety early warning devices for underground coal mine drainage systems. Summary of the Invention

[0005] The purpose of this invention is to provide an unattended safety early warning system for underground drainage systems in coal mines, in order to solve the problems mentioned in the background art, such as the air flotation monitoring device being easily damaged by the residual gravel in the mine water during operation, making it difficult to replace quickly and affecting the safety of early warning, and the pumping equipment being easily damaged by excessive temperature or prolonged operation, affecting the drainage effect and easily affecting the early warning effect when danger occurs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an unattended safety early warning system for a coal mine underground drainage system, comprising an underground pool and a laser rangefinder assembled in the underground pool; including: a slider that slides in a lifting groove opened on the inner surface of the underground pool, and a lifting frame is installed on the outer surface of the slider, and a nesting component is connected to the inner surface of the lifting frame through a limiting locking mechanism, while a protective shell is installed on the outer surface of the nesting component; a material blocking frame is installed on the lower side of the inner surface of the underground pool, and a water suction pipe is nested and connected to the inner surface of the material blocking frame; a cleaning frame is connected to the material blocking frame through a reciprocating cleaning mechanism; a water pump is installed on the outer surface of the water suction pipe, and a fixing frame is connected to the outer side of the water pump; the fixing frame is connected to the outer surface of the water pump motor through an elastic clamping mechanism.

[0007] Preferably, the limiting and engaging mechanism further includes a rotating rod rotatably connected to the inner surface of the lifting frame, and the rotating rod is assembled with a connecting rod via an off-axis. The other end of the outer surface of the connecting rod is rotatably connected to a clamp, which limits and engages the clamp on the inner surface of the nested part. At the same time, an airbag is nested and connected to the inner surface of the protective shell, and a spacer membrane is installed on the inner surface of the airbag.

[0008] Preferably, the lifting frame and the rotating rod form a rotating structure, and the rotating rod forms a crank-connecting rod mechanism with the clamp through the off-axis and the connecting rod. The lifting frame forms a limiting engagement structure with the nesting part through the clamp. At the same time, the nesting part forms an integrated structure with the protective shell and the airbag. The airbag is embedded in the outer surface of the diaphragm.

[0009] Preferably, the outer surface of the water pump is equipped with a branch drain pipe, and the outer surface of the branch drain pipe is equipped with a main drain pipe. The outer surface of the main drain pipe is nested with a pressure detector and a water flow detector. At the same time, the outer surface of the water pump is equipped with a fixing frame, and the fixing frame is installed on the underground pool.

[0010] Preferably, the material barrier and the suction pipe constitute a debris-proof water pumping mechanism, and a valve is nested and connected to the outer surface of the suction pipe. The suction pipe and the valve form an integrated structure. At the same time, the suction pipe forms a drainage structure with the main drainage pipe through the water pump and the branch drainage pipe. The water pump is embedded in the outer surface of the fixing frame.

[0011] Preferably, the elastic clamping mechanism further includes a monitoring rod rotatably connected to the outer surface of the fixed frame, and a tension spring elastically connects the monitoring rod to the fixed frame. The outer surface of the monitoring rod is attached to the outer surface of the motor of the water pump assembly. Meanwhile, a temperature detector is nested on the inner surface of the monitoring rod and attached to the outer surface of the motor. A locking block is slidably connected to the inner surface of the monitoring rod, and a return spring elastically connects the locking block to the monitoring rod, limiting and locking the locking block to the inner surface of the temperature detector. Additionally, an internal component is nested on the inner surface of the monitoring rod, and a magnetic suction component is installed on the outer surface of the internal component.

[0012] Preferably, the fixing frame forms a rotating structure with the monitoring rod via a tension spring, the monitoring rod forms a fitting structure with the motor assembled with the water pump, and the monitoring rod forms an embedded structure with the temperature detector.

[0013] Preferably, the monitoring rod forms an elastic sliding structure with the reset spring and the locking block, and the monitoring rod forms a limiting locking structure with the temperature detector with the locking block. The monitoring rod also forms a nested magnetic attraction structure with the built-in component and the magnetic attraction component, and the magnetic attraction component forms a magnetic attraction structure with the motor assembled with the water pump.

[0014] Preferably, the reciprocating cleaning mechanism further includes a limiting block that limits the sliding of the outer surface of the material blocking frame, and a cleaning frame is installed on the outer surface of the limiting block. A reciprocating screw is connected to the inner surface of the cleaning frame. A rotating component is installed on the outer surface of the reciprocating screw, and a drive housing is nested on the outer surface of the rotating component. A return water pipe and a return flow pipe are connected to the outer surface of the drive housing. The return flow pipe and the return water pipe are arranged left and right. A valve is nested on the outer surface of the return water pipe, and the return water pipe is installed on the branch drain pipe.

[0015] Preferably, the material blocking frame forms a limiting sliding structure with the cleaning frame through the limiting block, and the cleaning frame forms a reciprocating moving structure with the well pool through the reciprocating screw, and the reciprocating screw forms a rotating structure with the drive housing through the rotating component. At the same time, the drive housing forms an inlet and outlet water structure with the return pipe and the return water pipe, and the return water pipe forms a water passage structure with the branch drain pipe through valve two.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This unmanned safety early warning system for underground drainage in coal mines is equipped with an underground pool to collect and treat underground water. The system monitors the water level through a combination of lifting and adjusting airbags and a laser rangefinder. It uses a combination of mechanical and electronic monitoring and early warning. Based on the water level, it controls the operation of different groups of water pumps and cleans the suction pipe assembly and the material blocking frame assembly to prevent water pump blockage. Furthermore, it monitors the working environment based on temperature while the water pumps are operating to enhance the effectiveness of early warning monitoring.

[0017] 2. The unattended safety early warning system of this underground drainage system in the coal mine is equipped with a limit locking mechanism to facilitate the stability of the airbag locking assembly. When the airbag is damaged, it can improve the stability of its disassembly and replacement, prevent it from falling off, and install a spacer membrane inside the airbag to increase its service life. Furthermore, it is equipped with an elastic clamping mechanism to improve the monitoring of the operating temperature of the water pump motor, thereby increasing the stability of the water pump operation. When an abnormality is detected in a group of water pumps, other water pumps can be started to work, and the abnormal water pump can be repaired.

[0018] 3. The unattended safety early warning system of this underground drainage system in the coal mine is equipped with a reciprocating cleaning mechanism. When the front water pump is started independently, the opening of valve two allows for timed control of the water flow through the return water pipe to the drive housing. This controls the rotating component to drive the reciprocating screw to rotate, thereby controlling the cleaning frame to clean the material blocking frame and prevent blockages. Furthermore, the operation of the material blocking frame improves the stability of the drainage work, prevents blockages and damage to the water pump, and improves the drainage effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the downhole pool of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the downhole pool of the present invention (half-section view). Figure 3 This is a schematic diagram of the three-dimensional structure of the lifting frame of the present invention; Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of the lifting frame of the present invention; Figure 5 This is a half-sectional perspective view of the three-dimensional structure of the material barrier frame of the present invention; Figure 6 This is a bottom-view three-dimensional structural diagram of the fixing frame of the present invention; Figure 7 For the present invention Figure 6 Enlarged 3D structural diagram at point A; Figure 8 This is a schematic diagram of the three-dimensional structure of the return water pipe of the present invention; Figure 9 For the present invention Figure 8 Enlarged 3D structural diagram at point B.

[0020] In the diagram: 1. Downhole pool; 2. Laser rangefinder; 3. Lifting trough; 4. Slider; 5. Lifting frame; 6. Nested component; 7. Protective shell; 8. Airbag; 9. Spare membrane; 10. Rotating rod; 11. Connecting rod; 12. Clamping component; 13. Material blocking frame; 14. Suction pipe; 15. Valve I; 16. Water pump; 17. Branch drainage pipe; 18. Main drainage pipe; 19. Fixing frame; 20. Monitoring rod; 21. Temperature detector; 22. Clamping block; 23. Return spring; 24. Internal component; 25. Magnetic component; 26. Tension spring; 27. Valve II; 28. Return water pipe; 29. ​​Drive shell; 30. Rotating component; 31. Reciprocating screw; 32. Return pipe; 33. Cleaning frame; 34. Limit block. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-9 The present invention provides a technical solution: an unattended safety early warning system for underground drainage systems in coal mines, which includes an underground pool 1 and a laser rangefinder 2 assembled in the underground pool 1.

[0023] Example 1: As Figures 1-9 The present invention provides the following technical solution: a safety early warning system for an unattended underground drainage system in a coal mine, comprising: a slider 4 that slides in a lifting groove 3 opened on the inner surface of an underground pool 1, and a lifting frame 5 installed on the outer surface of the slider 4, and a nesting member 6 connected to the inner surface of the lifting frame 5 through a limiting locking mechanism, and a protective shell 7 installed on the outer surface of the nesting member 6; a material blocking frame 13 installed on the lower side of the inner surface of the underground pool 1, and a water suction pipe 14 nested and connected to the inner surface of the material blocking frame 13; a cleaning frame 33 connected to the material blocking frame 13 through a reciprocating cleaning mechanism; a water pump 16 installed on the outer surface of the water suction pipe 14; and a fixing frame 19 connected to the outer side of the water pump 16, and the fixing frame 19 connected to the outer surface of the motor of the water pump 16 through an elastic clamping mechanism.

[0024] During use, the laser rangefinder 2 and the lifting frame 5 assembled in the underground pool 1 will monitor the water level electronically and physically. When the water level is high, the data transmission from the control box will be displayed in real time on the display screen assembled in the early warning device. The protective shell 7 assembled in the airbag 8 of the lifting frame 5 will increase the monitoring and protection stability. When the drainage work is started, the material blocking frame 13 assembled in the underground pool 1 will control the water pump 16 to prevent blockage during the drainage process. The fixed frame 19 assembled in the water pump 16 will monitor the motor temperature of the water pump 16 to avoid abnormal temperature and affect its service life. The cleaning frame 33 assembled in the material blocking frame 13 will perform regular cleaning.

[0025] Example 2: Figures 1-7 The technical solution shown, based on Embodiment 1, further discloses monitoring and early warning work during the drainage process in coal mines. By monitoring water level, drainage pressure and flow rate, and the performance of the motor used in water pump 16, monitoring stability is improved. The monitoring data is effectively displayed on a screen via a control box, allowing for efficient data transmission to a convenient terminal, thus improving the stability of unattended early warning monitoring. The solution also allows for quick disassembly and replacement of the water level monitoring equipment to avoid affecting normal early warning monitoring work. Furthermore, the detachable temperature monitoring mechanism improves the stability of monitoring the operation of the motor used in water pump 16, addressing the issue of the air flotation monitoring device being prone to problems due to water residue in the mine. The internal crushed stone causes damage, making it difficult to replace quickly and affecting the safety of the early warning system. Furthermore, the installed pumping equipment is prone to damage due to excessive temperature or prolonged operation, affecting drainage efficiency and potentially compromising the early warning system in case of danger. The specific details are as follows: The limiting and engaging mechanism also includes a rotating rod 10 rotatably connected to the inner surface of the lifting frame 5. The rotating rod 10 is assembled with a connecting rod 11 via an off-axis, and the other end of the outer surface of the connecting rod 11 is rotatably connected to a clamp 12, which limits and engages with the inner surface of the nested part 6. Simultaneously, an airbag 8 is nested and connected to the inner surface of the protective shell 7, and a spacer 9 is installed on the inner surface of the airbag 8; For example... Figure 3 and Figure 4 As shown, the lifting frame 5 and the rotating rod 10 form a rotating structure, and the rotating rod 10 forms a crank-connecting rod mechanism with the clamp 12 via the offset shaft and connecting rod 11. The lifting frame 5 forms a limiting engagement structure with the nesting member 6 via the clamp 12. Simultaneously, the nesting member 6, the protective shell 7, and the airbag 8 form an integrated structure, and the airbag 8 is embedded in the outer surface of the diaphragm 9. Figure 5 As shown, a branch drain pipe 17 is installed on the outer surface of the water pump 16, and a main drain pipe 18 is installed on the outer surface of the branch drain pipe 17. A pressure detector and a water flow detector are nested and connected to the outer surface of the main drain pipe 18. A mounting bracket 19 is installed on the outer surface of the water pump 16, and the mounting bracket 19 is installed on the underground pool 1. Figure 5As shown, the material barrier 13 and the suction pipe 14 constitute a debris-proof water pumping mechanism, and a valve 15 is nested and connected to the outer surface of the suction pipe 14. The suction pipe 14 and the valve 15 form an integrated structure. Simultaneously, the suction pipe 14, through the water pump 16 and the branch drain pipe 17, forms a drainage structure with the main drain pipe 18. The water pump 16 is embedded in the outer surface of the fixing frame 19. Figure 6 and Figure 7 As shown, the elastic clamping mechanism also includes a monitoring rod 20 rotatably connected to the outer surface of the fixed frame 19, and a tension spring 26 elastically connects the monitoring rod 20 and the fixed frame 19. The outer surface of the monitoring rod 20 is attached to the outer surface of the motor assembled with the water pump 16. Simultaneously, a temperature detector 21 is nested within the inner surface of the monitoring rod 20, attaching the temperature detector 21 to the outer surface of the motor. A locking block 22 is slidably connected to the inner surface of the monitoring rod 20, and a return spring 23 elastically connects the locking block 22 to the monitoring rod 20, limiting and locking the locking block 22 onto the inner surface of the temperature detector 21. An internal component 24 is nested within the inner surface of the monitoring rod 20, and a magnetic suction component 25 is mounted on the outer surface of the internal component 24. Figure 6 and Figure 7 As shown, the fixing frame 19 forms a rotating structure with the monitoring rod 20 via the tension spring 26, and the monitoring rod 20 forms a fitting structure with the motor assembled with the water pump 16, and the monitoring rod 20 forms an embedded structure with the temperature detector 21; as Figure 6 and Figure 7 As shown, the monitoring rod 20 forms an elastic sliding structure with the reset spring 23 and the locking block 22, and the monitoring rod 20 forms a limiting locking structure with the temperature detector 21 through the locking block 22. The monitoring rod 20 forms a nested magnetic attraction structure with the built-in part 24 and the magnetic attraction part 25. At the same time, the magnetic attraction part 25 forms a magnetic attraction structure with the motor assembled with the water pump 16.

[0026] The coal mine underground water is collected in an underground pool 1 and monitored by an airbag 8 assembled with a laser rangefinder 2 and a lifting frame 5. When the water level is detected to be high, the drainage mechanism will be automatically and stably activated via the control box. If the water level rises abnormally, an early warning will be issued. When the lifting frame 5 is in operation, the slider 4 installed in it will slide in the lifting groove 3 to improve the stability of the air flotation monitoring. The airbag 8 assembled with the lifting frame 5 is equipped with a protective shell 7 to improve the working stability of the airbag 8. A spacer 9 is assembled inside the airbag 8 to prevent damage to the airbag 8. When malfunctioning, it affects normal operation. The gas system can be divided into zones for operation. An early warning will be issued when there is an abnormal height difference between the airbag 8 and the laser rangefinder 2. If the airbag 8 is damaged, it can be replaced. This is achieved by controlling the rotation of the lifting frame 5 and adjusting the rotating rod 10. This, in turn, controls the connecting rod 11 to control the locking piece 12 within the lifting frame 5, allowing the locking piece 12 to disengage from the nested part 6 on which the airbag 8 is installed. The damaged airbag 8 can then be removed, and a new airbag 8 can be installed, improving the efficiency of disassembly and replacement. To ensure stability, when the water level is high, the valve 15 of the suction pipe 14 can be opened via the control box, and the motor on the water pump 16 can be started. The water pump 16 is then controlled to draw water from the baffle 13 assembled in the underground pool 1 through the suction pipe 14, and the water is transported from the water pump 16 to the branch drainage pipe 17, cooperating with the main drainage pipe 18 for drainage. The drainage situation is monitored by pressure and flow rate detectors assembled in the branch drainage pipe 17. When the motor is running, the water pump 16 is stably mounted on the fixed frame 19, and the temperature detector 21 on the fixed frame 19 is also activated. When the motor temperature is detected by the temperature detector 21, the tension spring 26 between the fixing frame 19 and the monitoring rod 20 prevents the monitoring rod 20 from becoming loose. The magnetic suction part 25 installed in the built-in part 24 assembled inside the monitoring rod 20 can contact the motor, improving the detection effect of the temperature detector 21. In addition, the elastic adjustment block 22, which is assembled with the reset spring 23 of the fixing frame 19, controls the engagement stability of the temperature detector 21 and prevents it from falling off. This improves the stability of temperature detection, enhances the detection effect of the equipment's working status, and improves the stability of unattended safety early warning.

[0027] Example 3: Figure 8 and Figure 9The technical solution shown, based on Embodiment 2, further discloses the stability of drainage anti-clogging, avoiding damage to the water pump 16, improving operational stability, and solving the problem of water pump 16 being easily damaged due to suction clogging. Its specific content is as follows: The reciprocating cleaning mechanism also includes a limiting block 34 that limits sliding on the outer surface of the baffle frame 13, and a cleaning frame 33 is installed on the outer surface of the limiting block 34. A reciprocating screw 31 is connected to the inner surface of the cleaning frame 33. A rotating component 30 is installed on the outer surface of the reciprocating screw 31, and a drive housing 29 is nested on the outer surface of the rotating component 30. A return water pipe 28 and a return flow pipe 32 are connected to the outer surface of the drive housing 29, and the return flow pipe 32 and the return water pipe 28 are arranged left and right. A valve 27 is nested on the outer surface of the return water pipe 28, and the return water pipe 28 is installed on the branch drain pipe 17; Figure 8 and Figure 9 As shown, the material blocking frame 13 forms a limiting sliding structure with the cleaning frame 33 through the limiting block 34, and the cleaning frame 33 forms a reciprocating moving structure with the well pool 1 through the reciprocating screw 31. The reciprocating screw 31 forms a rotating structure with the drive housing 29 through the rotating part 30. At the same time, the drive housing 29 forms a water inlet and outlet structure with the return pipe 32 and the return water pipe 28, and the return water pipe 28 forms a water passage structure with the branch drain pipe 17 through the valve 27.

[0028] During use, valve 27 on the branch drain pipe 17 can be opened. When the branch drain pipe 17 is draining water, the water flows into the drive housing 29 assembled on the return water pipe 28, thereby driving the rotating part 30 to rotate. This drives the reciprocating screw 31 installed on the rotating part 30 to rotate synchronously, thereby controlling the cleaning frame 33 to slide back and forth in the material blocking frame 13 with the limit block 34 installed on it, thereby cleaning impurities from the material blocking frame 13. The water flowing into the drive housing 29 is returned to the underground pool 1 through the return pipe 32, improving the stability of drainage.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A safety early warning system for an unattended underground drainage system in a coal mine, comprising an underground pool (1) and a laser rangefinder (2) assembled in the underground pool (1); Its features are, include: The slider (4) slides in the lifting groove (3) opened on the inner surface of the underground pool (1), and the outer surface of the slider (4) is equipped with a lifting frame (5), and the inner surface of the lifting frame (5) is connected with a nesting part (6) through a limiting locking mechanism. At the same time, the outer surface of the nesting part (6) is equipped with a protective shell (7), and the lower side of the inner surface of the underground pool (1) is equipped with a material blocking frame (13), and the inner surface of the material blocking frame (13) is nested with a water suction pipe (14). At the same time, the material blocking frame (13) is connected with a cleaning frame (33) through a reciprocating cleaning mechanism, and a water pump (16) is installed on the outer surface of the water suction pipe (14). A fixing frame (19) is connected to the outside of the water pump (16), and the fixing frame (19) is connected to the outer surface of the motor of the water pump (16) through an elastic clamping mechanism.

2. The unattended safety early warning system for underground drainage systems in coal mines according to claim 1, characterized in that: The limiting and engaging mechanism also includes a rotating rod (10) rotatably connected to the inner surface of the lifting frame (5), and a connecting rod (11) is assembled on the rotating rod (10) via an off-axis. A clamp (12) is rotatably connected to the other end of the outer surface of the connecting rod (11), and the clamp (12) is limited and engaged on the inner surface of the nested part (6). At the same time, an airbag (8) is nested and connected to the inner surface of the protective shell (7), and a spacer membrane (9) is installed on the inner surface of the airbag (8).

3. The unmanned safety early warning system for underground drainage systems in coal mines according to claim 2, characterized in that: The lifting frame (5) and the rotating rod (10) form a rotating structure, and the rotating rod (10) forms a crank-connecting rod mechanism with the clamp (12) through the off-axis and the connecting rod (11). The lifting frame (5) forms a limiting engagement structure with the nesting part (6) through the clamp (12). At the same time, the nesting part (6) forms an integrated structure with the protective shell (7) and the airbag (8). The airbag (8) is embedded in the outer surface of the spacer membrane (9).

4. The unattended safety early warning system for underground drainage systems in coal mines according to claim 1, characterized in that: The outer surface of the water pump (16) is equipped with a branch drain pipe (17), and the outer surface of the branch drain pipe (17) is equipped with a main drain pipe (18). The outer surface of the main drain pipe (18) is nested with a pressure detector and a water flow detector. Meanwhile, the outer surface of the water pump (16) is equipped with a fixing frame (19), and the fixing frame (19) is installed on the well pool (1).

5. A safety early warning system for an unattended underground drainage system in a coal mine according to claim 4, characterized in that: The material barrier (13) and the water suction pipe (14) constitute a debris-proof water pumping mechanism. The outer surface of the water suction pipe (14) is nested with a valve (15). The water suction pipe (14) and the valve (15) form an integrated structure. At the same time, the water suction pipe (14) forms a drainage structure with the main drain pipe (18) through the water pump (16) and the branch drain pipe (17). The water pump (16) and the fixing frame (19) are embedded in the outer surface.

6. The unattended safety early warning system for underground drainage systems in coal mines according to claim 1, characterized in that: The elastic clamping mechanism also includes a monitoring rod (20) rotatably connected to the outer surface of the fixed frame (19), and a tension spring (26) elastically connected between the monitoring rod (20) and the fixed frame (19). The outer surface of the monitoring rod (20) is attached to the outer surface of the motor assembled by the water pump (16). At the same time, a temperature detector (21) is nested on the inner surface of the monitoring rod (20) and attached to the outer surface of the motor. A locking block (22) is slidably connected to the inner surface of the monitoring rod (20), and a return spring (23) elastically connected between the locking block (22) and the monitoring rod (20) limits and locks the locking block (22) on the inner surface of the temperature detector (21). At the same time, an internal component (24) is nested on the inner surface of the monitoring rod (20), and a magnetic suction component (25) is installed on the outer surface of the internal component (24).

7. A safety early warning system for an unattended underground drainage system in a coal mine according to claim 6, characterized in that: The fixed frame (19) forms a rotating structure with the monitoring rod (20) via a tension spring (26), and the monitoring rod (20) forms a fitting structure with the motor assembled with the water pump (16), and the monitoring rod (20) forms an embedded structure with the temperature detector (21).

8. A safety early warning system for an unattended underground drainage system in a coal mine according to claim 6, characterized in that: The monitoring rod (20) forms an elastic sliding structure with the reset spring (23) and the locking block (22), and the monitoring rod (20) forms a limiting locking structure with the temperature detector (21) through the locking block (22). The monitoring rod (20) forms a nested magnetic structure with the built-in part (24) and the magnetic part (25). At the same time, the magnetic part (25) forms a magnetic structure with the motor assembled with the water pump (16).

9. A safety early warning system for an unattended underground drainage system in a coal mine according to claim 1, characterized in that: The reciprocating cleaning mechanism also includes a limiting block (34) that limits the sliding of the outer surface of the material blocking frame (13), and a cleaning frame (33) is installed on the outer surface of the limiting block (34), and a reciprocating screw (31) is connected to the inner surface of the cleaning frame (33). Meanwhile, a rotating part (30) is installed on the outer surface of the reciprocating screw (31), and a drive housing (29) is nested on the outer surface of the rotating part (30). A return water pipe (28) and a return flow pipe (32) are connected to the outer surface of the drive housing (29), and the return flow pipe (32) and the return water pipe (28) are arranged left and right. Meanwhile, a valve (27) is nested on the outer surface of the return water pipe (28), and the return water pipe (28) is installed on the branch drain pipe (17).

10. A safety early warning system for an unattended underground drainage system in a coal mine according to claim 9, characterized in that: The material blocking frame (13) forms a limiting sliding structure with the cleaning frame (33) through the limiting block (34), and the cleaning frame (33) forms a reciprocating moving structure with the well pool (1) through the reciprocating screw (31), and the reciprocating screw (31) forms a rotating structure with the drive housing (29) through the rotating part (30). At the same time, the drive housing (29) forms a water inlet and outlet structure with the return pipe (32) and the return water pipe (28), and the return water pipe (28) forms a water passage structure with the branch drain pipe (17) through the valve two (27).

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