Underground water level measuring and early warning device

Abstract

The utility model discloses an underground water level measuring and early warning device which comprises a transverse supporting rod, the left end of the transverse supporting rod is fixedly connected with an anti-abrasion floating measuring assembly, and the right end of the transverse supporting rod is fixedly connected with an angle-adjustable fixed supporting assembly. A waterproof touch alarm mechanism is installed on the transverse supporting rod and comprises a rectangular pipe. By arranging a series of structures, the underground water level can be conveniently and smoothly measured in an anti-abrasion mode through buoyancy, the measuring smoothness is improved, an alarm is automatically and timely given to remind personnel when the water level rises to the early warning water level, and the phenomenon that follow-up flood is caused due to the fact that the water level cannot be timely known and treated is reduced; and the effect of flexibly adjusting the early warning water level according to the early warning requirement is facilitated, the use flexibility is further ensured, sealing and waterproof protection can be integrally performed on early warning control electric parts all the time in the early warning work, the phenomenon that the electric parts are damaged due to water inflow when the water level rises sharply is avoided, the safety of the whole device is improved, and the service life of the whole device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of water level measurement, in particular to an underground water level measurement and early warning device. Background Art

[0002] Groundwater is a vital water resource, crucial for water supply, agriculture, and industrial production in many regions. Monitoring and providing early warnings of groundwater level changes can help timely adjust water resource utilization strategies and ensure their rational use and supply. Currently, groundwater level measurements are mostly performed manually using vertical measuring rods or rulers. This makes it difficult to provide timely warnings when water levels rise dramatically, leading to flooding and other problems due to inability to promptly address them.

[0003] In this regard, it can be learned from the search report of the novelty search agency that announcement number CN221425766U discloses a groundwater level measurement and early warning device, including a device seat, the outer side of the device seat is rotatably connected to a rotating frame through a rotation mechanism, the outer surface of the rotating frame is fixedly connected to a guide platform, the inner surface of the guide platform is movably penetrated with a lightweight scale rod, the bottom of the lightweight scale rod is fixedly connected to a float cover, the bottom of the float cover is provided with a plumb bob, the outer surface of the rotating frame is slidably connected to a shift frame through a positioning mechanism, and the shift frame is provided with an adaptive early warning mechanism; the groundwater level measurement and early warning device can adjust the angle of the rotating frame through the rotation mechanism according to the specific conditions of the terrain and the groundwater flow, to ensure that the measuring angle of the lightweight scale rod adapts to the groundwater level distribution in different regions, this flexibility makes the device suitable for various complex terrains and areas with restricted groundwater flow, and improves the accuracy and authenticity of the measurement.

[0004] The above technology discloses a groundwater level measurement and early warning device, which can issue an alarm when the groundwater suddenly increases to the warning water level, so that timely information can be obtained and processed. However, there are still the following shortcomings when in use: 1. The warning mechanism formed by the controller, buzzer and other structures is exposed to the outside, which is prone to water damage when the groundwater suddenly increases beyond its position, and the safety of the electrical components of the warning mechanism is not ideal; 2. The scale rod on the top of the float cover is fitted with the guide platform, which has high friction resistance and there is a risk of jamming during long-term use. In view of this, the present application proposes a groundwater level measurement and early warning device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide a groundwater level measurement and early warning device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solutions: a groundwater level measurement and early warning device, comprising a horizontal support rod, wherein the left end of the horizontal support rod is fixedly connected to a wear-resistant floating measurement assembly, and the right end of the horizontal support rod is fixedly connected to an angle-adjustable fixed support assembly; the wear-resistant floating measurement assembly is used to float and rise and fall in response to the rise and fall of the groundwater level to be detected to measure the water level; the angle-adjustable fixed support assembly is used to fix and support the horizontal support rod and is used to flexibly adjust the tilt of the horizontal support rod when tilt adjustment is required or when adjustment is required due to tilt of the installation position;

[0007] A waterproof touch alarm mechanism is installed on the cross support rod, and the waterproof touch alarm mechanism includes a rectangular tube. The cross support rod is slidably sleeved on the rectangular tube. A transparent box is connected and fixed to the top of the rectangular tube, and a PLC controller is fixedly installed in the transparent box. A communication module and an alarm light are fixed on the top of the PLC controller and are electrically connected. A waterproof touch component electrically connected to the PLC controller is installed in the rectangular tube. The waterproof touch component is located above the anti-wear floating measuring component. A threaded lifting component threadedly connected to the cross support rod is installed between the bottom of the transparent box and the right bottom of the rectangular tube; the waterproof touch component is used to be squeezed and transmitted to the PLC controller when the anti-wear floating measuring component is raised by the water level, and the pressure value is transmitted to the PLC controller. The PLC controller is used to control the alarm light to turn on and the communication module to transmit the alarm signal when the pressure value increases, thereby realizing the water level warning function. The threaded lifting component is used to adjust the lifting of the rectangular tube according to the warning height.

[0008] Preferably, the anti-wear floating measuring assembly includes a rectangular guide sleeve fixedly connected to the left end of the cross support rod, two anti-wear balls are movably nested on the four inner walls of the rectangular guide sleeve, a hollow floating block is provided under the rectangular guide sleeve, and a T-shaped guide rod is fixedly connected to the top of the hollow floating block. The T-shaped guide rod is located between the eight anti-wear balls and is in movably contact with the anti-wear balls, and a scale line is provided on the front side of the T-shaped guide rod.

[0009] Preferably, the angle-adjustable fixed support assembly includes a universal ball fixedly connected to the right end of the horizontal support rod, a movable sleeve on the universal ball is provided with a ball sleeve with an opening on the left side, and a fixed seat is fixedly connected to the right side of the ball sleeve. The top and bottom of the universal ball are both movably in contact with knob-type bolts, and the ball sleeve is threadedly sleeved on the two knob-type bolts.

[0010] Preferably, the waterproof touch assembly includes an extrusion block slidably mounted in a rectangular tube, the bottom of the extrusion block extends to the bottom of the rectangular tube and is arranged as an arc structure, the extrusion block is located above the hollow floating block and cooperates with the hollow floating block, the top of the extrusion block is arranged as an arc structure and is in movably contact with an elastic waterproof membrane fixedly installed in the rectangular tube, and a pressure sensor electrically connected to the PLC controller is fixedly installed on the right inner wall of the rectangular tube, the bottom of the pressure sensor is a touch end and is in movably contact with the top of the elastic waterproof membrane.

[0011] Preferably, the threaded lifting assembly includes a screw rod rotatably installed between the bottom of the transparent box and the right bottom of the rectangular tube, a threaded hole threadedly connected to the screw rod is opened on the top of the cross support rod, and a knob is fixed on the screw rod and located below the cross support rod.

[0012] Preferably, a battery is fixedly mounted on the bottom inner wall of the transparent box, a PLC controller is fixedly connected to the left side of the battery, and the communication module, the alarm light and the PLC controller are all electrically connected to the battery.

[0013] Preferably, a limiting groove is provided on the left side of the extrusion block, and a limiting block slidably connected to the limiting groove is fixedly connected to the left inner wall of the rectangular tube.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The cross-bracing rod and the anti-wear floating measuring assembly are used to smoothly measure the groundwater level by utilizing buoyancy and anti-wear. This has the effect of preventing wear and jamming during measurement, improving the smoothness of measurement and reducing the risk of jamming during long-term use.

[0016] 2. The angle-adjustable fixed support assembly and the cross support rod are coordinated to flexibly adjust the cross support rod when tilt adjustment is required or when adjustment is required due to the tilt of the installation position. This allows for flexible adjustment of the wear-resistant floating measuring assembly, which has high applicability.

[0017] 3. Through the cooperation of the wear-resistant floating measuring component, cross support rod, waterproof touch component, rectangular tube, transparent box, PLC controller, communication module, alarm light and threaded lifting component, it can automatically and timely alarm to remind personnel when the water level rises to the warning water level, realize the water level warning function, reduce the phenomenon of subsequent flooding caused by failure to timely know and deal with it, and can flexibly adjust the effect of the warning water level according to the warning needs, further ensuring the flexibility of use. In addition, the elastic waterproof membrane can be used to seal the upper inner part of the rectangular tube, and the transparent box is used to surround and seal the PLC controller and the alarm light in an integrated design, so that the warning control electrical components can always be sealed and waterproofed during the warning work, which can avoid the damage of electrical components due to water ingress when the water level rises sharply, thereby improving the safety and service life of electrical components.

[0018] The utility model is provided with a series of structures, which makes it convenient to utilize buoyancy to prevent wear and tear to smoothly measure the groundwater level, improve the smoothness of measurement, and is convenient for automatically and promptly alarming personnel when the water level rises to the warning water level, reducing the phenomenon of subsequent flooding caused by failure to timely know and deal with it, and is convenient for flexibly adjusting the effect of the warning water level according to the warning needs, further ensuring the flexibility of use, and can always seal and waterproof the warning control electrical components during the warning work, avoiding the phenomenon of water ingress and damage to the electrical components when the water level rises sharply, thereby improving the safety and service life of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a groundwater level measurement and early warning device proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the main cross-sectional structure of a groundwater level measurement and early warning device proposed by the utility model;

[0021] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of a rectangular guide sleeve and anti-wear ball connecting piece of a groundwater level measurement and early warning device proposed by the utility model.

[0023] In the figure: 1. Fixed seat; 101. Ball sleeve; 102. Universal ball; 103. Knob-type bolt; 2. Cross support rod; 3. Rectangular guide sleeve; 301. Anti-wear ball; 302. T-shaped guide rod; 303. Hollow float; 4. Rectangular tube; 401. Transparent box; 402. PLC controller; 403. Warning light; 404. Screw; 405. Extrusion block; 406. Knob; 407. Elastic waterproof membrane; 408. Pressure sensor. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1 to 4As shown, a groundwater level measurement and early warning device proposed in this embodiment includes a horizontal support rod 2, the left end of the horizontal support rod 2 is fixedly connected to a wear-resistant floating measuring assembly, and the right end of the horizontal support rod 2 is fixedly connected to an angle-adjustable fixed support assembly; the wear-resistant floating measuring assembly is used to float and rise and fall to measure the water level in response to the rise and fall of the groundwater level to be detected, and the angle-adjustable fixed support assembly is used to fix and support the horizontal support rod 2 and to flexibly adjust the tilt of the horizontal support rod 2 when tilt adjustment is required or when adjustment is required due to the tilt of the installation position;

[0026] A waterproof touch alarm mechanism is installed on the horizontal support rod 2, and the waterproof touch alarm mechanism includes a rectangular tube 4. The horizontal support rod 2 is slidably sleeved on the rectangular tube 4, wherein the horizontal support rod 2 is provided with a rectangular through-hole for the rectangular tube 4 to slide vertically. The top of the rectangular tube 4 is connected and fixed with a transparent box 401, and a PLC controller 402 is fixedly installed in the transparent box 401. The top of the PLC controller 402 is fixed and electrically connected with a communication module and an alarm light 403. A waterproof touch component electrically connected to the PLC controller 402 is installed in the rectangular tube 4. The waterproof touch component is located above the anti-wear floating measuring component. A screw threaded with the horizontal support rod 2 is installed between the bottom of the transparent box 401 and the right bottom of the rectangular tube 4. A threaded lifting component is connected with a groove, a battery is fixedly installed on the bottom inner wall of the transparent box 401, and the PLC controller 402 is fixedly connected to the left side of the battery. The communication module, the alarm light 403 and the PLC controller 402 are all electrically connected to the battery, which serves to power the communication module, the alarm light 403 and the PLC controller 402; the waterproof touch component is used to be squeezed and transmitted to the PLC controller 402 when the wear-resistant floating measuring component is raised by the water level. The PLC controller 402 is used to control the alarm light 403 to turn on and control the communication module to transmit the alarm signal when the pressure value increases, thereby realizing the water level warning function. The threaded lifting component is used to adjust the lifting and lowering of the rectangular tube 4 according to the warning height.

[0027] Specifically, the wear-resistant floating measuring assembly includes a rectangular guide sleeve 3 fixedly connected to the left end of the horizontal support rod 2, two wear-resistant balls 301 are movably nested on the inner walls of the four sides of the rectangular guide sleeve 3, a hollow floating block 303 is provided below the rectangular guide sleeve 3, and a T-shaped guide rod 302 is fixedly connected to the top of the hollow floating block 303. The T-shaped guide rod 302 is located between the eight wear-resistant balls 301 and is in active contact with the wear-resistant balls 301. A scale line is provided on the front side of the T-shaped guide rod 302. The rectangular guide sleeve 3, the wear-resistant balls 301 The ball 301, T-shaped guide rod 302 and hollow float 303 work together. When the groundwater level rises or falls, the buoyancy is used to float the hollow float 303 up and down. The hollow float 303 drives the T-shaped guide rod 302 to rise and fall. People can know the changes in water level by observing the scale line on the front side of the T-shaped guide rod 302, thereby achieving the water level measurement effect. The eight anti-wear balls 301 are used to guide the T-shaped guide rod 302 vertically while reducing its moving friction, thereby preventing wear and preventing jamming, and improving the smoothness of measurement.

[0028] Furthermore, the angle-adjustable fixed support assembly includes a universal ball 102 fixedly connected to the right end of the horizontal support rod 2, a ball sleeve 101 with an opening on the left side of the universal ball 102 is movably provided, and the right side of the ball sleeve 101 is fixedly connected to the fixing seat 1, and the top and bottom of the universal ball 102 are movably contacted with knob-type bolts 103, and the ball sleeve 101 is threadedly sleeved on the two knob-type bolts 103, wherein the top and bottom of the ball sleeve 101 are provided with threaded through holes, and the threaded through holes are threadedly connected to the corresponding knob-type bolts 103; the set universal ball 102, ball sleeve 101, fixing seat 1 and knob bolt 103 cooperate , to achieve fixed support for the cross support rod 2 on the right side. When the overall tilt of the cross support rod 2 and the T-shaped guide rod 302 needs to be adjusted due to the tilt of the installation position, or when adaptive adjustment is required because the bottom of the water is an inclined surface, the personnel can reversely rotate the two knob-type bolts 103 to release the lock of the universal ball 102, and then rotate the cross support rod 2 to adjust the tilt. The cross support rod 2 drives the universal ball 102 to rotate in the ball sleeve 101. After the adjustment is appropriate, the two knob-type bolts 103 are rotated forward to tighten and lock the universal ball 102, which is convenient for flexible adjustment of the tilt of the cross support rod 2 when tilt adjustment is required or adjustment is required due to the tilt of the installation position.

[0029] Furthermore, the waterproof touch component includes an extrusion block 405 slidably sleeved in the rectangular tube 4, wherein a limiting groove is provided on the left side of the extrusion block 405, and a limiting block slidably connected to the limiting groove is fixedly connected to the left inner wall of the rectangular tube 4, which has the effect of limiting and preventing the extrusion block 405 from falling off. The bottom of the extrusion block 405 extends to the bottom of the rectangular tube 4 and is set to an arc structure. The extrusion block 405 is located above the hollow floating block 303 and cooperates with the hollow floating block 303. The top of the extrusion block 405 is set to an arc structure and is in movably contact with an elastic waterproof membrane 407 fixedly installed in the rectangular tube 4. A pressure sensor 408 electrically connected to the PLC controller 402 is fixedly installed on the right inner wall of the rectangular tube 4. The bottom of the pressure sensor 408 is a touch end and is in movably contact with the top of the elastic waterproof membrane 407. The extrusion block 4 is set 05. The elastic waterproof membrane 407 and the pressure sensor 408 cooperate. When the hollow float 303 is raised to the extrusion block 405 by the buoyancy of the water level, the hollow float 303 lifts the extrusion block 405, and the extrusion block 405 squeezes the pressure sensor 408 through the elastic waterproof membrane 407. The pressure sensor 408 detects the extrusion force and transmits the pressure value to the PLC controller 402. When the pressure value increases, the PLC controller 402 controls the alarm light 403 to turn on and controls the communication module to transmit the alarm signal, thereby realizing the water level early warning function. In addition, the setting of the elastic waterproof membrane 407 can seal the upper inner part of the rectangular tube 4, and cooperate with the transparent box 401 to surround and seal the PLC controller 402 and the alarm light 403, which can prevent electrical components from being damaged by water when the water level rises sharply, thereby improving the safety and service life of the electrical components.

[0030] Furthermore, the threaded lifting assembly includes a screw 404 rotatably installed between the bottom of the transparent box 401 and the right bottom of the rectangular tube 4, wherein the right bottom of the rectangular tube 4 is fixedly connected with a support block, and the top of the support block and the bottom of the transparent box 401 are fixedly connected with a bearing, and the inner ring of the bearing is fixedly sleeved on the outer side of the screw 404, which has the effect of rotatably installing the screw 404, and the top of the cross support rod 2 is provided with a threaded hole threadedly connected to the screw 404, and the screw 404 is fixedly sleeved with a knob 406 located below the cross support rod 2; the set screw 404, knob 406 and threaded hole cooperate, and the personnel rotates the knob 406 to drive the screw 404 to rotate, and the screw 404 rotates in the threaded hole and moves up and down, and the screw 404 drives the rectangular tube 4 and the transparent box 401 to move up and down, and the rectangular tube 4 drives the extrusion block 405 to move up and down to adjust the triggered alarm height, so as to achieve the effect of flexibly adjusting the warning water level according to the warning needs.

[0031] The method of using this embodiment is as follows: after the fixing seat 1 is fixed, when the overall inclination of the cross support rod 2 and the T-shaped guide rod 302 needs to be adjusted due to the inclination of the installation position, or when the bottom of the water is inclined and needs to be adjusted, the personnel can reversely rotate the two knob-type bolts 103 to release the lock of the universal ball 102, and then rotate the cross support rod 2 to adjust the inclination. The cross support rod 2 drives the universal ball 102 to rotate in the ball sleeve 101. After the adjustment is appropriate, the two knob-type bolts 103 are rotated forward to press and lock the universal ball 102. This is convenient for flexible adjustment of the inclination of the cross support rod 2 when inclination adjustment is required or adjustment is required due to the inclination of the installation position.

[0032] When the groundwater level rises or falls, the buoyancy is used to float the hollow float block 303 up and down. The hollow float block 303 drives the T-shaped guide rod 302 to slide and rise and fall between the eight anti-wear balls 301. The eight anti-wear balls 301 are used to guide the T-shaped guide rod 302 vertically while reducing its moving friction, thereby preventing wear and jamming, and improving the smoothness of measurement. By observing the scale line on the front side of the T-shaped guide rod 302, personnel can know the changes in water level rise and fall, achieving a water level measurement effect, capable of anti-wear and smooth measurement of groundwater level, and reducing the risk of jamming during long-term use;

[0033] When the hollow floating block 303 is raised to the squeezing block 405 by the buoyancy of the water level, the hollow floating block 303 lifts the squeezing block 405, and the squeezing block 405 squeezes the pressure sensor 408 through the elastic waterproof membrane 407. The pressure sensor 408 detects the squeezing force and transmits the pressure value to the PLC controller 402. When the pressure value increases, the PLC controller 402 controls the alarm light 403 to turn on and controls the communication module to transmit the alarm signal to the background terminal, thereby realizing the water level early warning function, facilitating personnel to obtain timely information and processing, and reducing the phenomenon of subsequent flooding caused by failure to obtain timely information and processing; in addition, the setting of the elastic waterproof membrane 407 can seal the upper inner side of the rectangular tube 4, and the integrated design of the transparent box 401 to surround and seal the PLC controller 402 and the alarm light 403 can prevent the electrical components from being damaged by water when the water level rises sharply, thereby improving the safety and service life of the electrical components;

[0034] When the warning water level needs to be adjusted according to the warning requirements, the personnel rotates the knob 406 to drive the screw 404 to rotate, the screw 404 rotates in the threaded hole and moves downward or upward, the screw 404 drives the rectangular tube 4 and the transparent box 401 to move, and the rectangular tube 4 drives the extrusion block 405 to move to adjust the triggered alarm height, thereby achieving the effect of flexibly adjusting the warning water level according to the warning requirements, and further ensuring flexibility of use.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A groundwater level measurement and early warning device, comprising a horizontal support rod (2), characterized in that: The left end of the transverse support rod (2) is fixedly connected to a wear-resistant floating measurement component, and the right end of the transverse support rod (2) is fixedly connected to an angle-adjustable fixed support component; A waterproof touch alarm mechanism is installed on the transverse support rod (2), and the waterproof touch alarm mechanism comprises a rectangular tube (4). The transverse support rod (2) is slidably sleeved on the rectangular tube (4). The top of the rectangular tube (4) is connected and fixed with a transparent box (401). A PLC controller (402) is fixedly installed in the transparent box (401). A communication module and an alarm light (403) are fixed and electrically connected to the top of the PLC controller (402). A waterproof touch assembly electrically connected to the PLC controller (402) is installed in the rectangular tube (4). The waterproof touch assembly is located above the anti-wear floating measurement assembly. A threaded lifting assembly threadedly connected to the transverse support rod (2) is installed between the bottom of the transparent box (401) and the right bottom of the rectangular tube (4).

2. The groundwater level measurement and early warning device according to claim 1, characterized in that: The anti-wear floating measuring assembly comprises a rectangular guide sleeve (3) fixedly connected to the left end of the transverse support rod (2); two anti-wear balls (301) are movably nested on the inner walls of the four sides of the rectangular guide sleeve (3); a hollow floating block (303) is provided below the rectangular guide sleeve (3); a T-shaped guide rod (302) is fixedly connected to the top of the hollow floating block (303); the T-shaped guide rod (302) is located between the eight anti-wear balls (301) and is in movably contact with the anti-wear balls (301); and a scale line is provided on the front side of the T-shaped guide rod (302).

3. The groundwater level measurement and early warning device according to claim 1, characterized in that: The angle-adjustable fixed support assembly comprises a universal ball (102) fixedly connected to the right end of the horizontal support rod (2); a ball sleeve (101) with an opening on the left side is movably sleeved on the universal ball (102); a fixing seat (1) is fixedly connected to the right side of the ball sleeve (101); the top and bottom of the universal ball (102) are movably contacted with knob-type bolts (103); and the ball sleeve (101) is threadedly sleeved on the two knob-type bolts (103).

4. The groundwater level measurement and early warning device according to claim 2, characterized in that: The waterproof touch assembly comprises an extrusion block (405) slidably sleeved in a rectangular tube (4); the bottom of the extrusion block (405) extends to the bottom of the rectangular tube (4) and is configured as an arc-shaped structure; the extrusion block (405) is located above the hollow floating block (303) and cooperates with the hollow floating block (303); the top of the extrusion block (405) is configured as an arc-shaped structure and movably contacts an elastic waterproof membrane (407) fixedly installed in the rectangular tube (4); a pressure sensor (408) electrically connected to a PLC controller (402) is fixedly installed on the right inner wall of the rectangular tube (4); the bottom of the pressure sensor (408) is a touch end and movably contacts the top of the elastic waterproof membrane (407).

5. The groundwater level measurement and early warning device according to claim 1, characterized in that: The threaded lifting assembly comprises a screw rod (404) rotatably mounted between the bottom of the transparent box (401) and the bottom of the right side of the rectangular tube (4); a threaded hole threadedly connected to the screw rod (404) is provided at the top of the cross support rod (2); and a knob (406) located below the cross support rod (2) is fixedly sleeved on the screw rod (404).

6. The groundwater level measurement and early warning device according to claim 1, characterized in that: A battery is fixedly mounted on the bottom inner wall of the transparent box (401), a PLC controller (402) is fixedly connected to the left side of the battery, and the communication module, the alarm light (403) and the PLC controller (402) are all electrically connected to the battery.

7. The groundwater level measurement and early warning device according to claim 4, characterized in that: A limiting groove is provided on the left side of the extrusion block (405), and a limiting block is fixedly connected to the left inner wall of the rectangular tube (4) and is slidably connected to the limiting groove.

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