Coal mine goaf underground water level monitoring device based on intelligent sensor

Abstract

The invention relates to the technical field of water level monitoring, and discloses a coal mine goaf underground water level monitoring device based on an intelligent sensor, which comprises a mounting plate, a clamping frame is fixedly connected to the front side surface of the mounting plate, a sound wave monitor is clamped to the inner surface of the clamping frame, and a guide rail is fixedly connected to the front side surface of the mounting plate. According to the water level detection device, the sound wave monitor emits sound waves downwards, the water level can be rapidly detected, the device installation efficiency is improved, the sound wave monitor can be protected through the protection shell, the sound wave monitor is prevented from being physically damaged, and the water level detection device is convenient to use. The use safety of the device is improved, the turnover cover is lifted, the sound wave monitor can be quickly checked, the device is more convenient to maintain, the positioning rod is inserted into the trapezoidal sliding seat to lock the sound wave monitor, and the installation stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water level monitoring, and in particular to a coal mine goaf area groundwater level monitoring device based on an intelligent sensor. Background Art

[0002] The underground water level monitoring device for coal mine goaf is an intelligent device used to accurately monitor the underground water level in coal mine goaf. Its core goal is to prevent safety accidents such as water seepage and collapse caused by abnormal underground water level through sensor technology, data transmission and intelligent analysis, so as to ensure the safe production of coal mines. In the existing technology, the sensor is difficult to protect, difficult to replace and inspect, and easily damaged.

[0003] The patent with announcement number CN220932150U discloses a groundwater level monitoring device, which includes a box mechanism, a photovoltaic mechanism, and a detection mechanism. The top of the box mechanism is fixedly connected with the photovoltaic mechanism, and the detection mechanism is threadedly connected to the bottom of the box mechanism. The box mechanism includes an equipment box, a control panel, a control switch, a support leg, a data port, a power storage box and a threaded block. The control panel is located at the front end of the equipment box, and the control switch is located in front of the equipment box. The number of the support legs is set to four. Compared with conventional groundwater level monitoring devices, the groundwater level monitoring device requires an external power supply to power it, which increases energy loss and wiring costs, causing waste of resources. The photovoltaic mechanism generates electricity to provide electrical equipment with electricity, and the excess electricity will be stored in the power storage box. When the power storage box is fully charged, the excess electricity will be continuously provided to the control panel and the motor, reducing wiring costs and waste of electricity. Although the patent solves the above problems, it is still difficult to conveniently and effectively protect and replace the device. Therefore, a groundwater level monitoring device for coal mine goaf based on an intelligent sensor is proposed to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a coal mine goaf area groundwater level monitoring device based on an intelligent sensor in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a coal mine goaf area groundwater level monitoring device based on intelligent sensor, including a mounting plate, the front side of the mounting plate is fixedly connected to a card frame, the inner surface of the card frame is carded with a sound wave monitor, the front side of the mounting plate is fixedly connected to a guide rail, the outer surface of the guide rail is slidably connected to a protective shell, the front side of the protective shell is hinged with a flip cover, the front side of the mounting plate is provided with a dehumidification and anti-seepage device for preventing moisture from penetrating into the sound wave monitor, the front side of the mounting plate is provided with an audible and visual alarm device for quickly alarming after detecting water level abnormality, and the dehumidification and anti-seepage device is provided on the front side of the mounting plate. Connecting plates are fixedly connected to the inner surface of the shell on both sides, and the rear side of the connecting plate is fixedly connected to a trapezoidal pressure plate, the front side of the mounting plate is fixedly connected to a limiting plate, the side surface of the limiting plate is slidably connected to a trapezoidal slide, and the inclined surface of the trapezoidal slide is provided with a limiting groove, and the side of the trapezoidal slide close to the card frame is fixedly connected to an elastic telescopic rod, and the two sides of the acoustic wave monitor are fixedly connected to positioning rods, the rear side of the trapezoidal slide and the front side of the mounting plate are in contact with each other, and the two sides of the card frame are fixedly connected to elastic telescopic rods, and a positioning hole is provided on the side of the trapezoidal slide close to the acoustic wave monitor, and the inner surface of the positioning hole and the positioning The circumferential surfaces of the rods are in contact with each other, the rear side of the acoustic wave monitor and the front side of the mounting plate are in contact with each other, the limit plate and the two sides of the card frame are fixedly connected, the trapezoidal pressure plate and the inner surface of the limit groove are in contact with each other, the mounting plate is pre-installed on the rock wall of the coal mine goaf by bolts, and when the water level needs to be monitored, the acoustic wave monitor is inserted into the card frame. At this time, the acoustic wave monitor emits sound waves downward, which can quickly detect the water level, and the protective shell is inserted into the front side of the mounting plate through the guide rail to cover the acoustic wave monitor. The protective shell can protect the acoustic wave monitor to prevent the acoustic wave monitor from being physically damaged. When the acoustic wave monitor needs to be inspected for a short period of time , lift the flip cover upwards, the acoustic wave monitor can be quickly checked, when the protective shell moves backward, it drives the connecting plate to move backward, the connecting plate drives the trapezoidal pressure plate to move backward and insert into the limit groove 1, the trapezoidal pressure plate is guided by the inclined surface of the limit groove 1, and pushes the trapezoidal slide to slide between the limit plates and approach the card frame, so that the positioning rods on both sides of the acoustic wave monitor are inserted into the trapezoidal slide, so that the acoustic wave monitor is locked, when the protective shell is removed, the protective shell drives the connecting plate and the trapezoidal pressure plate to move forward, at this time the trapezoidal slide is free from the restriction of the trapezoidal pressure plate, and the elastic reset effect of the elastic telescopic rod pushes the trapezoidal slide to the side away from the card frame and separates from the positioning rod.

[0006] Preferably, the dehumidification and anti-seepage device includes a dehumidification box, the front inner surface of the dehumidification box is hinged with a box cover, the bottom inner surface of the protective shell is fixedly connected to a linear motor, and the bottom movable end of the linear motor is fixedly connected to an anti-seepage plate, and the dehumidification and anti-seepage device also includes a ventilation net, the dehumidification box is fixedly connected to a support shaft on one side close to the trapezoidal slide, the inner surface of the support shaft is slidably connected to a sliding rod, and the sliding rod is fixedly connected to an end of the card frame close to the card frame, and the upper and lower sides of the trapezoidal slide are fixedly connected to push plates, the dehumidification box and the front side of the mounting plate are fixedly connected, the dehumidification box and the side surface of the guide rail are fixedly connected, the rear side of the linear motor and the front side of the mounting plate are in contact with each other, the ventilation net is fixedly connected to the inner surface of the dehumidification box, the push plate and the baffle are in contact with each other on the side close to the dehumidification box, and the baffle is close to the dehumidification box A spring is arranged between one side and the side of the support shaft close to the baffle. When there is no need to monitor the water level in the goaf, the linear motor is started by remote control. The linear motor drives the anti-seepage plates to approach each other so that the bottom of the protective shell is closed. At this time, the dehumidifier inside the dehumidification box absorbs the moisture inside the protective shell. The box cover can be opened to replace the dehumidifier in the dehumidification box. The trapezoidal slide drives the push plate close to the card frame during the process of approaching the card frame, and the push plate pushes the baffle away from the dehumidification box. During the process of the baffle moving away, the slide bar is driven to slide in the support shaft. At this time, a gap is generated between the baffle and the dehumidification box, and moisture is absorbed by the dehumidifier in the dehumidification box through the ventilation net. After the protective shell is removed, the elastic reset action of the spring pulls the baffle to reset. During the reset process of the baffle, the slide bar is driven to slide and reset in the support shaft so that the baffle remains stable and then fits with the dehumidification box to close the dehumidification box.

[0007] Preferably, the sound and light alarm device includes a connecting seat, the inner surface of the connecting seat is slidably connected to a lifting shaft, the upper surface of the lifting shaft is slidably connected to an alarm, the upper surface of the alarm is fixedly connected to a top plate, the sound and light alarm device also includes a slot, the lower surface of the lifting shaft is fixedly connected to a trapezoidal lifting frame, the lower surface of the trapezoidal lifting frame is provided with a limiting groove 2, a trapezoidal push block is provided on the side of the baffle plate close to the connecting seat, the connecting seat and the front side of the mounting plate are fixedly connected, the slot is provided on the rear side of the top of the protective shell, the inner surface of the slot and the outer surface of the connecting seat are in contact with each other, the trapezoidal push block and the inner surface of the limiting groove 2 are in contact with each other, and when the acoustic wave monitor detects an abnormal water level, a signal is transmitted to the alarm. , the alarm sounds a danger alarm, reminding nearby on-duty personnel to ensure the safety of on-duty personnel and those passing by in the goaf. When the baffle approaches the connecting seat, it drives the trapezoidal push block to approach the trapezoidal lifting frame and insert it into the limit groove 2, and the trapezoidal push block pushes the trapezoidal lifting frame upward through the guidance of the inclined surface of the limit groove 2. When the trapezoidal lifting frame moves upward, it drives the lifting shaft to slide and rise in the connecting seat, and the lifting shaft then drives the alarm and the top plate to rise and emerge from the connecting seat. In the process of removing the protective shell and the acoustic wave monitor, the trapezoidal push block moves away from the trapezoidal lifting frame. At this time, the trapezoidal lifting frame descends under the influence of gravity and drives the lifting shaft to slide and descend in the connecting seat. The lifting shaft then drives the alarm and the top plate to descend and be retracted into the connecting seat. At this time, the alarm is protected by the top plate and the connecting seat.

[0008] The present invention adopts the above technical solution to bring the following beneficial effects:

[0009] 1. The underground water level monitoring device for coal mine goaf based on intelligent sensors, the acoustic wave monitor emits sound waves downward, can quickly detect the water level, and improves the installation efficiency of the device. The protective shell can protect the acoustic wave monitor to prevent the acoustic wave monitor from physical damage, and improves the safety of the device. The acoustic wave monitor can be quickly checked by lifting the flap, making the maintenance of the device more convenient. The positioning rod is inserted into the trapezoidal slide to lock the acoustic wave monitor, which improves the installation stability. After the trapezoidal slide is separated from the positioning rod, the acoustic wave monitor can be quickly removed, making the operation more convenient.

[0010] 2. In the coal mine goaf groundwater level monitoring device based on intelligent sensors, the anti-seepage plates are close to each other to close the bottom of the protective shell. At this time, the dehumidifier inside the dehumidification box absorbs the moisture inside the protective shell to prevent moisture from penetrating into the acoustic wave monitor and causing the acoustic wave monitor to be short-circuited and damaged, thereby improving the protection effect of the acoustic wave monitor.

[0011] 3. The underground water level monitoring device for coal mine goaf based on intelligent sensors drives the slide bar to slide and reset in the support shaft during the baffle resetting process so that the baffle remains stable and then fits with the dehumidification box to close the dehumidification box and prevent moisture from entering the dehumidification box, which is convenient for intermittent and continuous use of the device.

[0012] 4. The underground water level monitoring device in the goaf of coal mine based on intelligent sensors can sound a danger alarm to remind nearby on-duty personnel, thereby ensuring the safety of on-duty personnel and those passing through the goaf. The lifting shaft drives the alarm and the top plate to rise and emerge from the connecting seat, making it easy to send an alarm.

[0013] 5. The underground water level monitoring device for coal mine goaf based on intelligent sensors, the lifting shaft drives the alarm and the top plate to descend and retract into the connecting seat. At this time, the alarm is protected by the top plate and the connecting seat to prevent it from being damaged by bumps before the next use, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the front side three-dimensional half-section structure of the present invention;

[0016] Figure 3 It is a schematic diagram of a three-dimensional half-section structure of the front side of the protective shell of the present invention;

[0017] Figure 4 For the present invention Figure 3 A is a schematic diagram of the enlarged structure of the middle part;

[0018] Figure 5 It is a schematic diagram of the front side stereoscopic structure of the dehumidification and anti-seepage device of the present invention;

[0019] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of B;

[0020] Figure 7 It is a schematic diagram of the three-dimensional half-section structure of the side and bottom surfaces of the sound and light alarm device of the present invention.

[0021] In the figure: 1. mounting plate; 2. card frame; 3. acoustic wave monitor; 4. guide rail; 5. protective shell; 6. flip cover; 7. dehumidification and anti-seepage device; 8. sound and light alarm device; 9. connecting plate; 10. trapezoidal pressure plate; 11. limit plate; 12. trapezoidal slide seat; 13. limit slot one; 14. elastic telescopic rod; 15. positioning rod; 71. dehumidification box; 72. box cover; 73. linear motor; 74. anti-seepage plate; 75. ventilation net; 76. support shaft; 77. slide rod; 78. baffle; 79. push plate; 81. connecting seat; 82. lifting shaft; 83. alarm; 84. top plate; 85. slot; 86. trapezoidal lifting frame; 87. limit slot two; 88. trapezoidal push block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 7 , one embodiment of the present invention is: a coal mine goaf underground water level monitoring device based on intelligent sensor, comprising a mounting plate 1, a card frame 2 is fixedly connected to the front side of the mounting plate 1, an acoustic wave monitor 3 is carded on the inner surface of the card frame 2, a guide rail 4 is fixedly connected to the front side of the mounting plate 1, a protective shell 5 is slidably connected to the outer surface of the guide rail 4, a flip cover 6 is hinged on the front side of the protective shell 5, the acoustic wave monitor 3 emits sound waves downward, can quickly detect the water level, improves the installation efficiency of the device, the protective shell 5 can protect the acoustic wave monitor 3, prevent the acoustic wave monitor 3 from being physically damaged, and improves the safety of the device, a dehumidification and anti-seepage device 7 for preventing moisture from penetrating into the acoustic wave monitor 3 is arranged on the front side of the mounting plate 1, an acoustic and light alarm device 8 for quickly alarming after detecting abnormal water level is arranged on the front side of the mounting plate 1, connecting plates 9 are fixedly connected to both sides of the inner surface of the protective shell 5, a trapezoidal pressure plate 10 is fixedly connected to the rear side of the connecting plate 9, and a limiting plate 11 is fixedly connected to the front side of the mounting plate 1, The side surface of the limiting plate 11 is slidably connected with a trapezoidal slide 12, and a limiting groove 13 is provided on the inclined surface of the trapezoidal slide 12. An elastic telescopic rod 14 is fixedly connected to the side of the trapezoidal slide 12 close to the card frame 2, and positioning rods 15 are fixedly connected to both sides of the acoustic wave monitor 3. The rear side of the trapezoidal slide 12 and the front side of the mounting plate 1 are in contact with each other, and the elastic telescopic rods 14 are fixedly connected to both sides of the card frame 2. A positioning hole is provided on the side of the trapezoidal slide 12 close to the acoustic wave monitor 3, and the inner surface of the positioning hole and the positioning rod 15 are fixedly connected. The circumferential surfaces are in contact with each other, the rear side of the acoustic wave monitor 3 and the front side of the mounting plate 1 are in contact with each other, the limiting plate 11 and the two sides of the card frame 2 are fixedly connected, the trapezoidal pressure plate 10 and the inner surface of the limiting groove 13 are in contact with each other, and the flip cover 6 is lifted to quickly check the acoustic wave monitor 3, making the device maintenance more convenient. The positioning rod 15 is inserted into the trapezoidal slide 12 to lock the acoustic wave monitor 3, thereby improving the installation stability. After the trapezoidal slide 12 is separated from the positioning rod 15, the acoustic wave monitor 3 can be quickly removed, making the operation more convenient.

[0024] Working principle: The mounting plate 1 is pre-installed on the rock wall of the coal mine goaf by bolts. When the water level needs to be monitored, the acoustic wave monitor 3 is inserted into the card frame 2. At this time, the acoustic wave monitor 3 emits sound waves downward, which can quickly detect the water level and improve the installation efficiency of the device. The protective shell 5 is inserted into the front side of the mounting plate 1 through the guide rail 4 and covers the acoustic wave monitor 3. The protective shell 5 can protect the acoustic wave monitor 3 and prevent the acoustic wave monitor 3 from being physically damaged, thereby improving the safety of the device. When the acoustic wave monitor 3 needs to be inspected for a short period of time, the flap 6 is lifted upwards to quickly inspect the acoustic wave monitor 3, making the device maintenance more convenient. When the protective shell 5 moves backward, it drives the connecting plate 9 to move backward, and the connecting plate 9 is connected to the protective shell 5. The connecting plate 9 drives the trapezoidal pressure plate 10 to move backward and insert into the limiting groove 13. The trapezoidal pressure plate 10 is guided by the inclined surface of the limiting groove 13 to push the trapezoidal slide 12 to slide between the limiting plates 11 and approach the card frame 2, so that the positioning rods 15 on both sides of the sound wave monitor 3 are inserted into the trapezoidal slide 12, so that the sound wave monitor 3 is locked, and the installation stability is improved. When the protective shell 5 is removed, the protective shell 5 drives the connecting plate 9 and the trapezoidal pressure plate 10 to move forward. At this time, the trapezoidal slide 12 is free from the restriction of the trapezoidal pressure plate 10, and the elastic reset effect of the elastic telescopic rod 14 pushes the trapezoidal slide 12 to the side away from the card frame 2 and disengages from the positioning rod 15, thereby quickly removing the sound wave monitor 3, making the operation more convenient.

[0025] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, the dehumidification and anti-seepage device 7 includes a dehumidification box 71, and a box cover 72 is hinged on the inner surface of the front side of the dehumidification box 71. A linear motor 73 is fixedly connected to the inner surface of the bottom end of the protective shell 5, and an anti-seepage plate 74 is fixedly connected to the bottom movable end of the linear motor 73. The anti-seepage plates 74 are close to each other to close the bottom of the protective shell 5. At this time, the dehumidifier inside the dehumidification box 71 absorbs the moisture inside the protective shell 5 to prevent moisture from penetrating into the acoustic wave monitor 3 and causing the acoustic wave monitor 3 to be short-circuited and damaged, thereby improving the protection effect of the acoustic wave monitor 3. The dehumidification and anti-seepage device 7 also includes a ventilation net 75. A support shaft 76 is fixedly connected to the side of the dehumidification box 71 close to the trapezoidal slide 12, and a slide rod 77 is slidably connected to the inner surface of the support shaft 76. The slide rod 77 A baffle 78 is fixedly connected to one end close to the card frame 2, and push plates 79 are fixedly connected to the upper and lower sides of the trapezoidal slide 12. The dehumidification box 71 and the front side of the mounting plate 1 are fixedly connected, the dehumidification box 71 and the side surface of the guide rail 4 are fixedly connected, the rear side of the linear motor 73 and the front side of the mounting plate 1 are in contact with each other, the ventilation net 75 and the inner surface of the dehumidification box 71 are fixedly connected, the push plate 79 and the side of the baffle 78 close to the dehumidification box 71 are in contact with each other, and a spring is provided between the side of the baffle 78 close to the dehumidification box 71 and the side of the support shaft 76 close to the baffle 78. During the resetting process of the baffle 78, the slide bar 77 is driven to slide and reset in the support shaft 76 so that the baffle 78 remains stable and then fits with the dehumidification box 71, so that the dehumidification box 71 is closed to prevent moisture from entering the dehumidification box 71, which is convenient for intermittent and continuous use of the device.

[0026] Working principle: When there is no need to monitor the water level in the goaf, the linear motor 73 is started by remote control, and the linear motor 73 drives the anti-seepage plates 74 to approach each other so that the bottom of the protective shell 5 is closed. At this time, the dehumidifier inside the dehumidification box 71 absorbs the moisture inside the protective shell 5 to prevent moisture from penetrating into the acoustic wave monitor 3 and causing the acoustic wave monitor 3 to be short-circuited and damaged, thereby improving the protection effect of the acoustic wave monitor 3. The box cover 72 is opened to replace the dehumidifier in the dehumidification box 71. When the trapezoidal slide 12 approaches the card frame 2, it drives the push plate 79 to approach the card frame 2, and the push plate 79 Then push the baffle 78 away from the dehumidification box 71. During the process of the baffle 78 moving away, the slide bar 77 is driven to slide in the support shaft 76. At this time, a gap is generated between the baffle 78 and the dehumidification box 71, and moisture is absorbed by the dehumidifier in the dehumidification box 71 through the ventilation net 75. After removing the protective shell 5, the elastic reset action of the spring pulls the baffle 78 to reset. During the reset process of the baffle 78, the slide bar 77 is driven to slide and reset in the support shaft 76 so that the baffle 78 remains stable and then fits with the dehumidification box 71, so that the dehumidification box 71 is closed to prevent moisture from entering the dehumidification box 71, which is convenient for intermittent and continuous use of the device.

[0027] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, the sound and light alarm device 8 includes a connecting seat 81, the inner surface of the connecting seat 81 is slidably connected with a lifting shaft 82, the upper surface of the lifting shaft 82 is slidably connected with an alarm 83, the upper surface of the alarm 83 is fixedly connected with a top plate 84, the alarm 83 sounds a danger alarm to remind nearby on-duty personnel to ensure the safety of on-duty personnel and passing personnel in the goaf, the lifting shaft 82 drives the alarm 83 and the top plate 84 to rise and emerge from the connecting seat 81, so as to facilitate the sending of the alarm, the sound and light alarm device 8 also includes a slot 85, the lower surface of the lifting shaft 82 is fixedly connected with a trapezoidal lifting The lower surface of the trapezoidal lifting frame 86 is provided with a limiting groove 87, a trapezoidal push block 88 is provided on the side of the baffle 78 close to the connecting seat 81, the connecting seat 81 is fixedly connected to the front side of the mounting plate 1, the slot 85 is provided on the rear side of the top of the protective shell 5, the inner surface of the slot 85 and the outer surface of the connecting seat 81 are in contact with each other, the trapezoidal push block 88 and the inner surface of the limiting groove 87 are in contact with each other, the lifting shaft 82 drives the alarm 83 and the top plate 84 to descend and be received in the connecting seat 81, at this time, the alarm 83 is protected by the top plate 84 and the connecting seat 81 to prevent it from being damaged by bumps before the next use, thereby improving the safety of the device.

[0028] Working principle: When the acoustic wave monitor 3 detects an abnormal water level, it transmits a signal to the alarm 83, and the alarm 83 sounds a danger alarm to remind the nearby on-duty personnel to ensure the safety of the personnel on duty and passing through the goaf. When the baffle 78 approaches the connecting seat 81, it drives the trapezoidal push block 88 to approach the trapezoidal lifting frame 86 and insert it into the limiting groove 87, and the trapezoidal push block 88 pushes the trapezoidal lifting frame 86 to move upward through the guide of the inclined surface of the limiting groove 87. When the trapezoidal lifting frame 86 moves upward, it drives the lifting shaft 82 to slide and rise in the connecting seat 81, and the lifting shaft 82 drives The alarm 83 and the top plate 84 rise and emerge from the connecting seat 81, which is convenient for sending an alarm. During the removal of the protective shell 5 and the acoustic wave monitor 3, the trapezoidal push block 88 moves away from the trapezoidal lifting frame 86. At this time, the trapezoidal lifting frame 86 descends under the influence of gravity and drives the lifting shaft 82 to slide and descend in the connecting seat 81. The lifting shaft 82 then drives the alarm 83 and the top plate 84 to descend and be stored in the connecting seat 81. At this time, the alarm 83 is protected by the top plate 84 and the connecting seat 81 to prevent it from being damaged by bumps before the next use, thereby improving the safety of the device.

[0029] The present invention provides a coal mine goaf groundwater level monitoring device based on an intelligent sensor. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A device for monitoring underground water level in coal mine goaf based on intelligent sensors, comprising a mounting plate (1), characterized in that: The front side of the mounting plate (1) is fixedly connected to a card frame (2), the inner surface of the card frame (2) is carded with a sound wave monitor (3), the front side of the mounting plate (1) is fixedly connected to a guide rail (4), the outer surface of the guide rail (4) is slidably connected to a protective shell (5), the front side of the protective shell (5) is hinged with a flip cover (6), the front side of the mounting plate (1) is provided with a dehumidification and anti-seepage device (7) for preventing moisture from penetrating into the sound wave monitor (3), and the front side of the mounting plate (1) is provided with an audible and visual alarm device (7) for quickly giving an alarm after detecting an abnormal water level. 8), connecting plates (9) are fixedly connected to both sides of the inner surface of the protective shell (5), a trapezoidal pressure plate (10) is fixedly connected to the rear side of the connecting plate (9), a limiting plate (11) is fixedly connected to the front side of the mounting plate (1), a trapezoidal slide (12) is slidably connected to the side surface of the limiting plate (11), a limiting groove (13) is provided on the inclined surface of the trapezoidal slide (12), an elastic telescopic rod (14) is fixedly connected to one side of the trapezoidal slide (12) close to the card frame (2), and positioning rods (15) are fixedly connected to both sides of the acoustic wave monitor (3).

2. The underground water level monitoring device for coal mine goaf area based on intelligent sensor according to claim 1 is characterized by: The rear side surface of the trapezoidal slide (12) and the front side surface of the mounting plate (1) are in contact with each other, and elastic telescopic rods (14) are fixedly connected to both sides of the card frame (2). A positioning hole is provided on the side of the trapezoidal slide (12) close to the sound wave monitor (3), and the inner surface of the positioning hole and the circumferential surface of the positioning rod (15) are in contact with each other. The rear side surface of the sound wave monitor (3) and the front side surface of the mounting plate (1) are in contact with each other, the limiting plate (11) and both sides of the card frame (2) are fixedly connected, and the trapezoidal pressure plate (10) and the inner surface of the limiting groove (13) are in contact with each other.

3. The underground water level monitoring device for coal mine goaf area based on intelligent sensor according to claim 2 is characterized by: The dehumidification and anti-seepage device (7) comprises a dehumidification box (71), a box cover (72) is hingedly connected to the front inner surface of the dehumidification box (71), a linear motor (73) is fixedly connected to the bottom inner surface of the protective shell (5), and an anti-seepage plate (74) is fixedly connected to the bottom movable end of the linear motor (73).

4. The underground water level monitoring device for coal mine goaf area based on intelligent sensor according to claim 3 is characterized by: The dehumidification and anti-seepage device (7) also includes a ventilation net (75), and the dehumidification box (71) is fixedly connected to a support shaft (76) on one side close to the trapezoidal slide (12), and the inner surface of the support shaft (76) is slidably connected to a slide rod (77), and the end of the slide rod (77) close to the card frame (2) is fixedly connected to a baffle (78), and the upper and lower sides of the trapezoidal slide (12) are fixedly connected to push plates (79).

5. The underground water level monitoring device for coal mine goaf area based on intelligent sensor according to claim 4 is characterized by: The dehumidification box (71) is fixedly connected to the front side of the mounting plate (1), the dehumidification box (71) is fixedly connected to the side surface of the guide rail (4), the rear side of the linear motor (73) and the front side of the mounting plate (1) are in contact with each other, the ventilation net (75) and the inner surface of the dehumidification box (71) are fixedly connected, the push plate (79) and the baffle (78) are in contact with each other on the side close to the dehumidification box (71), and a spring is provided between the side of the baffle (78) close to the dehumidification box (71) and the side of the support shaft (76) close to the baffle (78).

6. The device for monitoring underground water level in coal mine goaf based on intelligent sensor according to claim 5, characterized in that: The sound and light alarm device (8) comprises a connecting seat (81), the inner surface of the connecting seat (81) is slidably connected to a lifting shaft (82), the upper surface of the lifting shaft (82) is slidably connected to an alarm (83), and the upper surface of the alarm (83) is fixedly connected to a top plate (84).

7. The underground water level monitoring device for coal mine goaf area based on intelligent sensor according to claim 6 is characterized by: The sound and light alarm device (8) also includes a slot (85), a trapezoidal lifting frame (86) is fixedly connected to the lower surface of the lifting shaft (82), a second limiting slot (87) is provided on the lower surface of the trapezoidal lifting frame (86), and a trapezoidal push block (88) is provided on one side of the baffle (78) close to the connecting seat (81).

8. The device for monitoring underground water level in coal mine goaf based on intelligent sensor according to claim 7, characterized in that: The connecting seat (81) is fixedly connected to the front side of the mounting plate (1); the slot (85) is arranged on the rear side of the top end of the protective shell (5); the inner surface of the slot (85) and the outer surface of the connecting seat (81) are in contact with each other; and the trapezoidal push block (88) and the inner surface of the second limiting groove (87) are in contact with each other.

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