Groundwater level monitoring methods in geological survey

Abstract

The invention discloses a method for monitoring underground water level in geological survey, which is characterized by comprising the following steps: S1: fixing a support ring (1) of a water level monitoring system by an external bracket, so that the bottom of a vertical rotating rod (13) contacts the bottom of a water area to be surveyed, and a floating plate (2) floats on the liquid surface of the water area to be surveyed; S2: connecting the circuits of a pressure-sensitive switch module (20), an LED light bar (23), a solar panel assembly (25) and a rechargeable battery, and the preparation work is completed; S3: realizing digital display of water level changes by continuously performing dynamic video monitoring by a water level monitoring surveillance camera (12), and visually monitoring the water level height by the height of the lighted position of the LED light bar (23), thereby realizing water level observation; S4: combining the water level observation in S3 with the scale indication (24), monitoring the water level change data.

Description

Technical Field

[0001] The invention relates to the field of geological exploration, and in particular to a method for monitoring groundwater level in geological exploration. Background Art

[0002] The groundwater level refers to the elevation of the groundwater surface relative to the reference surface. It is usually calculated in absolute elevation. The elevation of the water table is called the "groundwater level"; the elevation of the pressure water table is called the "pressure water level". According to the drilling observation time, it can be divided into the initial water level, stable water level, flood season water level, dry season water level, pre-freeze water level, etc.

[0003] The main reasons for the decline in groundwater levels are:

[0004] Human factors: for example, excessive exploitation by humans.

[0005] Natural factors: for example, earthquakes causing the terrain to rise, underground rivers to sink, etc.; river diversion; climate change, etc.

[0006] Most of the existing water level monitoring equipment monitors the water area to be surveyed at a fixed angle, and the monitoring results are not comprehensive enough, especially when the water level changes, it is inconvenient to quickly observe the water level of the water area from multiple angles. Summary of the invention

[0007] The purpose of the present invention is to provide a groundwater level monitoring method for geological exploration, which has the advantages of multi-angle water level observation and visual accurate data monitoring, and solves the problems raised in the background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: a method for monitoring groundwater level in geological survey, characterized by comprising the following steps:

[0009] S1: Fixing the support ring (1) of the water level monitoring system through an external bracket so that the bottom of the vertical rotating rod (13) contacts the bottom of the water area to be surveyed, and the floating plate (2) floats on the liquid surface of the water area to be surveyed;

[0010] S2: connecting the circuits of the pressure-sensitive switch module (20), the LED light bar (23), the solar panel assembly (25) and the rechargeable battery, and the preparation work is completed;

[0011] S3: The water level monitoring camera (12) continuously performs dynamic video monitoring to realize the digital display of water level changes, and the height of the water level can be intuitively monitored by the height of the light position of the LED light bar (23), thereby realizing water level observation;

[0012] S4: Combine the water level observation in S3 and the scale indication (24) to monitor the water level change data.

[0013] In the present case, the water level monitoring system comprises a support ring (1) and a floating plate (2) floating on the liquid surface of the water area to be surveyed, a connecting column (3) is fixed on the arc-shaped contour of the support ring (1), and also comprises a water level monitoring surveillance camera (12) for monitoring water level changes; a limit rod (4) is fixed on the lower surface of the connecting column (3), the surface of the limit rod (4) passes through the floating plate (2) and is connected to the floating plate (2) in a limited sliding manner, and the inner wall of the support ring (1) is connected to a rotating column (5) for fixed-axis rotation.

[0014] In the present case, a connecting frame (6) is fixedly sleeved on the arc-shaped contour near the top of the rotating column (5), and two side support plates (7) are fixedly sleeved on the surface of the connecting frame (6), and through holes are opened on the surfaces of the two side support plates (7) and a horizontal rotating rod (8) is rotatably connected to the hole; a gear (9) is fixedly sleeved on the arc-shaped contour of the horizontal rotating rod (8), and a lifting rack (10) is meshed with the teeth on the gear (9), and the bottom of the lifting rack (10) is movably connected to the upper surface of the floating plate (2); a transverse plate (11) is fixedly sleeved on the surface of the side support plate (7), and the transverse plate (11) is penetrated by the lifting rack (10) and is slidably connected to the lifting rack (10) in an upper and lower limit manner; the water level monitoring surveillance camera (12) is fixedly sleeved on the arc-shaped contour near the two ends of the horizontal rotating rod (8).

[0015] In the present case, the floating plate (2) is provided with an adjusting device, which comprises a vertical rotating rod (13), the top of which is coaxially fixedly connected with a rectangular sliding rod (14), and the top of the rotating column (5) is provided with a rectangular mounting hole (15) for mounting the rectangular sliding rod (14); a movable through hole (16) for the vertical rotating rod (13) to pass through is provided at the center of the circle on the upper surface of the floating plate (2), a guide sliding block (17) is fixed to the inner wall of the movable through hole (16), and an outer spiral groove (18) cooperating with the guide sliding block (17) is provided on the arc profile of the vertical rotating rod (13);

[0016] A display device for visually displaying the height change of the water level is provided on the inner wall of the outer spiral groove (18), and the display device comprises a rubber sealing tube (19) spirally wound on the inner wall of the outer spiral groove (18) and a support vertical plate (22) fixed on the upper surface of the connection frame (6), wherein: the inner wall of the rubber sealing tube (19) is wrapped with a pressure-sensitive switch module (20), and the pressure-sensitive switch module (20) is composed of a plurality of pressure-sensitive switch units (21) arranged linearly; a plurality of LED light strips (23) are fixed on the surface of the support vertical plate (22), and a solar panel assembly (25) is fixed on the top of the support vertical plate (22), and the solar panel assembly (25) is electrically connected to a rechargeable battery.

[0017] In the present case, the number of the limiting rods (4) is two, and the two limiting rods (4) are symmetrically arranged with respect to the vertical center line of the floating plate (2).

[0018] The beneficial effects are as follows: the monitoring method is supported and fixed by an external frame through a support ring, so that the support ring can support the rotating column when it rotates; the floating plate floats on the liquid surface of the water area to be detected, so that the change of the water level in the water area can be sensed through the ups and downs of the floating plate; at the same time, the connecting column supports and connects the limit rod, and the limit rod penetrates the floating plate, so that the movement trajectory of the floating plate is limited and can only be lifted and lowered axially;

[0019] In this monitoring method, the bottom of the lifting rack is against the upper surface of the floating plate, so that the weight of the lifting rack is pressed on the floating plate, and the floating plate will be close to the liquid surface; when the water level rises, the floating plate will float up synchronously, and when the water level drops, the floating plate will drop synchronously; the floating floating plate will drive the lifting rack to move up synchronously. Since the lifting rack runs through the horizontal plate, its movement trajectory is also limited, and it can only be lifted axially. The upward movement of the lifting rack of Banu Four, the gear meshing with the teeth on the lifting rack will drive the horizontal rotating rod to rotate on the side support plate, and the water level monitoring surveillance camera fixed on the end of the horizontal rotating rod will rotate synchronously with the horizontal rotating rod. When the water level changes, the water level monitoring surveillance camera will realize dynamic detection of the water level through continuous rotation, and the detection range is more comprehensive.

[0020] This monitoring method uses an adjustment device to enable the water level monitoring camera to further adjust its position in the horizontal direction when the water level changes, so as to obtain more comprehensive monitoring data;

[0021] This monitoring method can visualize and digitize the changes in water level through a display device, so that people can quickly obtain the water level changes on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of the monitoring system used in the present invention;

[0023] Figure 2 A top view of the floating plate of the monitoring system used in the present invention;

[0024] Figure 3 A perspective view of a vertical rotating rod of the monitoring system used in the present invention;

[0025] Figure 4 A three-dimensional diagram of a support vertical plate of the monitoring system adopted by the present invention;

[0026] Figure 5 A front view of a support vertical plate of the monitoring system adopted by the present invention;

[0027] Figure 6A cross-sectional view of a rubber sealing tube of the monitoring system used in the present invention;

[0028] Figure 7 A schematic diagram of a pressure-sensitive switch unit of the monitoring system used in the present invention.

[0029] In the figure: 1. Support ring; 2. Float; 3. Connecting column; 4. Insert rod; 5. Rotating column; 6. Connecting frame; 7. Side support plate; 8. Horizontal rotating rod; 9. Gear; 10. Lifting rack; 11. Horizontal plate; 12. Water level monitoring surveillance camera; 13. Vertical rotating rod; 14. Rectangular sliding rod; 15. Rectangular mounting hole; 16. Movable through hole; 17. Guide slider; 18. External spiral groove; 19. Rubber sealing tube; 20. Pressure sensitive switch module; 21. Pressure sensitive switch unit; 22. Support vertical plate; 23. LED light bar; 24. Scale indication; 25. Battery panel assembly. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1-7 As shown, a method for monitoring groundwater level in geological exploration is characterized by comprising the following steps:

[0032] S1: Fix the support ring 1 of the water level monitoring system through an external bracket so that the bottom of the vertical rotating rod 13 contacts the bottom of the water area to be surveyed, and the floating plate 2 floats on the liquid surface of the water area to be surveyed;

[0033] Embodiment 1

[0034] like Figure 1-7 As shown, the water level monitoring system in step S1 includes a support ring 1 supported and fixed by an external frame and a floating plate 2 floating on the liquid surface of the water area to be surveyed. The support ring 1 is supported and fixed by an external frame, and the external frame can be a support frame erected on the shore of the water area. The frame erection method is adapted to the actual terrain.

[0035] The floating plate 2 floats on the liquid surface of the water area to be detected, so that the change of the water level in the water area can be sensed through the ups and downs of the floating plate 2. A connecting column 3 is fixed on the arc profile of the support ring 1, and a limit rod 4 is fixed on the lower surface of the connecting column 3. The surface of the limit rod 4 penetrates the floating plate 2 and is connected to the floating plate 2 in a limited sliding manner. The limit rod 4 is supported and connected by the connecting column 3. The limit rod 4 penetrates the floating plate 2, so that the movement trajectory of the floating plate 2 is limited and can only be lifted and lowered axially. The inner wall of the support ring 1 is connected to a rotating column 5 for fixed-axis rotation, so that the support ring 1 can support the rotating column 5 when it rotates;

[0036] like Figure 1-7As shown, a connecting frame 6 is fixedly sleeved on the arc-shaped profile near the top of the rotating column 5, and two side support plates 7 are fixedly mounted on the surface of the connecting frame 6. Through holes are opened on the surfaces of the two side support plates 7, and a horizontal rotating rod 8 is connected to the hole for fixed axis rotation. A gear 9 is fixedly sleeved on the arc-shaped profile of the horizontal rotating rod 8, and a lifting rack 10 is meshed with the teeth on the gear 9. The bottom of the lifting rack 10 is movably connected to the upper surface of the floating plate 2, and the bottom of the lifting rack 10 is pressed against the upper surface of the floating plate 2, so that the weight of the lifting rack 10 is pressed on the floating plate 2, and the floating plate 2 will be close to the liquid surface. When the water level rises, the floating plate 2 will float up synchronously, and when the water level drops, the floating plate 2 will drop synchronously.

[0037] A horizontal plate 11 is fixed on the surface of the side support plate 7. The horizontal plate 11 is penetrated by the lifting rack 10 and is slidably connected with the lifting rack 10 in an upper and lower limit manner. A water level monitoring camera 12 for monitoring water level changes is fixed on the arc profile near the two ends of the horizontal rotating rod 8. The floating plate 2 will drive the synchronous upward movement of the lifting rack 10. Since the lifting rack 10 penetrates the horizontal plate 11, its movement trajectory is also limited and can only be lifted axially. The upward movement of the lifting rack 10 and the gear 9 meshing with the teeth on the lifting rack 10 will drive the horizontal rotating rod 8 to rotate on the side support plate 7, and the water level monitoring camera 12 fixed on the end of the horizontal rotating rod 8 will rotate synchronously with the horizontal rotating rod 8. When the water level changes, the water level monitoring camera 12 will realize dynamic detection of the water level through continuous rotation, and the detection range is more comprehensive.

[0038] Among them, the water level monitoring surveillance camera 12 can transmit data with the remote image processing and recognition equipment. The water level picture is photographed by the water level monitoring surveillance camera 12, and the picture information is transmitted to the remote image processing and recognition equipment through the wireless transmission equipment. The relevant image processing and recognition equipment converts the image signal into a digital signal and processes it using a computer. The relevant technology is relatively mature and well known to those skilled in the art, so it will not be publicly described here.

[0039] Embodiment 2

[0040] Basically the same as the first embodiment, in this embodiment, an adjusting device is provided on the floating plate 2. Through the setting of the adjusting device, the water level monitoring surveillance camera 12 can further adjust its position in the horizontal direction when the water level changes, so as to obtain more comprehensive monitoring data.

[0041] The adjusting device includes a vertical rotating rod 13, a rectangular sliding rod 14 is coaxially fixed to the top of the vertical rotating rod 13, a rectangular mounting hole 15 for installing the rectangular sliding rod 14 is provided on the top of the rotating column 5, a movable through hole 16 for the vertical rotating rod 13 to pass through is provided at the center of the circle on the upper surface of the floating plate 2, a guide slider 17 is fixed to the inner wall of the movable through hole 16, and an outer spiral groove 18 cooperating with the guide slider 17 is provided on the arc profile of the vertical rotating rod 13.

[0042] refer to Figure 1 , Figure 2 and Figure 3 As mentioned above, the floating plate 2 can only be raised and lowered axially due to the limitation of the positioning rod 4. When the water level rises, the floating plate 2 rises synchronously, and the guide slider 17 on the inner wall of the movable through hole 16 will move up along the inner wall of the outer spiral groove 18. Under the guidance of the spiral track on the outer spiral groove 18, the vertical rotating rod 13 will lead the rectangular sliding rod 14, and the rectangular sliding rod 14 will lead the rotating column 5 to rotate in the support ring 1. From then on, the connecting frame 6, side support plate 7, horizontal rotating rod 8, gear 9, lifting rack 10, cross plate 11 and water level monitoring surveillance camera 12 on the rotating column 5 will rotate with the vertical center line of the rotating column 5 as the rotation center.

[0043] In conjunction with the previous rotation of the water level monitoring surveillance camera 12 along with the horizontal rotating rod 8, the rotation range of the water level monitoring surveillance camera 12 is further enriched, and the monitoring range of the water level monitoring surveillance camera 12 for water level changes in the water area is further improved.

[0044] Embodiment 3

[0045] Basically the same as the second embodiment, in this embodiment, a display device for visually displaying the water level change is provided on the inner wall of the outer spiral groove 18. Through the setting of the display device, the water level change can be visualized and digitized so that people can quickly obtain the water level change situation on site.

[0046] The display device includes a rubber sealing tube 19 spirally wound on the inner wall of the outer spiral groove 18, and the inner wall of the rubber sealing tube 19 is wrapped with a pressure-sensitive switch module 20, and the pressure-sensitive switch module 20 is composed of a plurality of pressure-sensitive switch units 21 arranged linearly.

[0047] refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 .

[0048] As the floating plate 2 moves up and down, the guide slider 17 will be in contact with and squeezed with the rubber sealing tube 19 at different locations on the inner wall of the outer spiral groove 18, so that the pressure-sensitive switch module 20 wrapped in the rubber sealing tube 19 is also squeezed synchronously. Since the guide slider 17 is in continuous contact with the rubber sealing tube 19, the squeezing of the pressure-sensitive switch module 20 is also continuous and linear, and finally, the multiple pressure-sensitive switch units 21 constituting the pressure-sensitive switch module 20 are squeezed one by one.

[0049] The display device also includes a support vertical plate 22 fixed on the upper surface of the connection frame 6, and a plurality of LED light strips 23 are fixed on the surface of the support vertical plate 22. The plurality of LED light strips 23 correspond one-to-one to the plurality of pressure-sensitive switch units 21 and are powered by a rechargeable battery.

[0050] refer to Figure 4 , referring to the above, the pressure-sensitive switch units 21 correspond one-to-one with the LED light strips 23 and are electrically connected by a rechargeable battery. When the multiple pressure-sensitive switch units 21 in the above content are squeezed one by one, the LED light strips 23 electrically connected to the corresponding pressure-sensitive switch units 21 will be powered on and light up. As mentioned earlier, the multiple pressure-sensitive switch units 21 are also squeezed one by one, that is, the multiple LED light strips 23 distributed on the support vertical plate 22 are also lit up one by one, that is, the multiple LED light strips 23 are linearly lit up one by one from bottom to top or from top to bottom on the support vertical plate 22, and the lighting speed is affected by the speed of water level rise;

[0051] At this point, people on site can roughly judge the height of the water level by observing the position of the light on the support vertical plate 22. The surface of the support vertical plate 22 near the LED light bar 23 is marked with a scale indication 24, and the values ​​on the scale indication 24 increase from bottom to top.

[0052] refer to Figure 5 .

[0053] Through the marking of the scale indication 24, the specific LED light bar 23 on the supporting vertical plate 22 can be lit up to display the corresponding numerical value for accurately judging the specific numerical value of the water level. In addition, in a night environment, the lighting of the LED light bar 23 can illuminate the scale indication 24 and the numerical scale nearby, making it convenient to read data at night.

[0054] A solar panel assembly 25 is fixed to the top of the support vertical plate 22, and the solar panel assembly 25 is electrically connected to the rechargeable battery. Figure 5 By setting the solar panel assembly 25, solar energy can be collected during daily use, and the solar energy can be converted into electrical energy and stored in the rechargeable battery to meet the power demand of daily use. The number of the limit rods 4 is two, and the two limit rods 4 are symmetrically arranged with respect to the vertical center line of the floating plate 2.

[0055] refer to Figure 1 Through the symmetrical arrangement of the two limit rods 4, the force on the floating plate 2 is more balanced, and it will be more stable during movement, ensuring stability in a long-term use environment.

[0056] Working principle: When the groundwater level monitoring method for geological exploration is used, the support ring 1 is supported and fixed by an external frame, so that the support ring 1 can support the rotating column 5 when it rotates.

[0057] The floating plate 2 floats on the liquid surface of the water area to be detected, so that the change of the water level in the water area can be sensed through the ups and downs of the floating plate 2;

[0058] The limiting rod 4 is supported and connected by the connecting column 3, and the limiting rod 4 penetrates the floating plate 2, so that the movement trajectory of the floating plate 2 is restricted and can only be lifted and lowered axially.

[0059] The bottom of the lifting rack 10 is in contact with the upper surface of the floating plate 2, so that the weight of the lifting rack 10 is pressed on the floating plate 2, and the floating plate 2 will be close to the liquid surface. When the water level rises, the floating plate 2 will float synchronously, and the floating floating plate 2 will drive the lifting rack 10 to move upward synchronously. Since the lifting rack 10 passes through the horizontal plate 11, its movement trajectory is also limited, and it can only be lifted axially. The upward movement of the lifting rack 10 of Banu Si, the gear 9 meshing with the teeth on the lifting rack 10 will drive the horizontal rotating rod 8 to rotate on the side support plate 7, and the water level monitoring surveillance camera 12 fixed on the end of the horizontal rotating rod 8 will rotate synchronously with the horizontal rotating rod 8. When the water level changes, the water level monitoring surveillance camera 12 will realize dynamic detection of the water level through continuous rotation, and the detection range is more comprehensive;

[0060] By setting the adjustment device, the water level monitoring camera 12 can further adjust its position in the horizontal direction when the water level changes, so as to obtain more comprehensive monitoring data;

[0061] refer to Figure 1 , Figure 2 and Figure 3 As mentioned above, the floating plate 2 can only be lifted and lowered axially due to the limitation of the positioning rod 4. When the water level rises, the floating plate 2 rises synchronously, and the guide slider 17 on the inner wall of the movable through hole 16 will move up along the inner wall of the outer spiral groove 18. Under the guidance of the spiral track on the outer spiral groove 18, the vertical rotating rod 13 will lead the rectangular sliding rod 14, and the rectangular sliding rod 14 will lead the rotating column 5 to rotate in the support ring 1. From then on, the connecting frame 6, side support plate 7, horizontal rotating rod 8, gear 9, lifting rack 10, cross plate 11 and water level monitoring surveillance camera 12 on the rotating column 5 will rotate with the vertical center line of the rotating column 5 as the rotation center.

[0062] In conjunction with the previous rotation of the water level monitoring surveillance camera 12 along with the horizontal rotating rod 8, the rotation range of the water level monitoring surveillance camera 12 is further enriched, and the monitoring range of the water level monitoring surveillance camera 12 for water level changes in the water area is further improved.

[0063] refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As the floating plate 2 moves up and down, the guide slider 17 will be in contact with and squeezed with the rubber sealing tubes 19 at different locations on the inner wall of the outer spiral groove 18, so that the pressure-sensitive switch module 20 wrapped in the rubber sealing tube 19 is also squeezed synchronously. Since the contact between the guide slider 17 and the rubber sealing tube 19 is continuous, the squeezing of the pressure-sensitive switch module 20 is also continuous and linear. Finally, for the multiple pressure-sensitive switch units 21 constituting the pressure-sensitive switch module 20, the multiple pressure-sensitive switch units 21 are squeezed one by one. Figure 4 , referring to the above, the pressure-sensitive switch units 21 correspond to the LED light strips 23 one by one and are electrically connected by the rechargeable battery. When the multiple pressure-sensitive switch units 21 in the above content are squeezed one by one, the LED light strips 23 electrically connected to the corresponding pressure-sensitive switch units 21 will be powered on and light up. As mentioned earlier, the multiple pressure-sensitive switch units 21 are also squeezed one by one, that is, the multiple LED light strips 23 distributed on the supporting vertical plate 22 are also lit up one by one, that is, the multiple LED light strips 23 are linearly lit up one by one from bottom to top or from top to bottom on the supporting vertical plate 22, and the lighting speed is affected by the speed of water level rise;

[0064] At this point, people can roughly judge the water level by observing the position of the lights on the support vertical plate 22, referring to Figure 5 Through the marking of the scale indication 24, the specific LED light bar 23 on the support vertical plate 22 can be lit to display the corresponding value for accurate judgment of the specific value of the water level, and in the night environment, the lighting of the LED light bar 23 can illuminate the scale indication 24 and the numerical scale nearby, making it convenient to read data at night.

[0065] Through the coordinated use of the above structures, the problem of inconvenience in actual use caused by the existing water level monitoring equipment mostly monitoring the water area to be surveyed at a fixed angle and the monitoring results are not comprehensive enough, especially when the water level changes, it is difficult to quickly observe the water level of the water area from multiple angles, which brings inconvenience to the use is solved.

[0066] S2: The circuits of the pressure-sensitive switch module 20, the LED light bar 23, the solar panel assembly 25 and the rechargeable battery are connected, and the preparation work is completed;

[0067] S3: The water level monitoring camera 12 continuously performs dynamic video monitoring to realize the digital display of water level changes, and the height of the water level can be intuitively monitored through the height of the LED light bar 23 to realize water level observation;

[0068] S4: Combine the water level observation in S3 and the scale indication 24 to monitor the water level change data. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for monitoring groundwater level in geological exploration, characterized in that The following steps are involved: S1: Fix the support ring (1) of the water level monitoring system through an external bracket, so that the bottom of the vertical rotating rod (13) contacts the bottom of the water area to be surveyed, and the floating plate (2) floats on the liquid surface of the water area to be surveyed; S2: Connect the circuits of the pressure-sensitive switch module (20), the LED light bar (23), the solar panel assembly (25) and the rechargeable battery, and the preparation work is completed; S3: The water level monitoring camera (12) continuously performs dynamic video monitoring to realize the digital display of water level changes, and the height of the water level can be intuitively monitored by the height of the light position of the LED light bar (23), so as to realize water level observation; S4: Combined with the water level observation in S3 and in conjunction with the scale indication (24), the water level change data is monitored; the water level monitoring system comprises a support ring (1) and a floating plate (2) floating on the liquid surface of the water area to be surveyed, a connecting column (3) is fixed on the arc profile of the support ring (1), and also comprises a water level monitoring camera (12) for monitoring water level changes; a limit rod (4) is fixed on the lower surface of the connecting column (3), the surface of the limit rod (4) passes through the floating plate (2) and is connected to the floating plate (2). The floating plate (2) is connected by limited sliding, and the inner wall of the support ring (1) is connected to a rotating column (5) in a fixed axis rotation manner; a connecting frame (6) is fixedly sleeved on the arc-shaped contour near the top of the rotating column (5), and two side support plates (7) are fixedly mounted on the surface of the connecting frame (6); through holes are opened on the surfaces of the two side support plates (7) and a horizontal rotating rod (8) is connected to the hole in a fixed axis rotation manner; a gear (9) is fixedly sleeved on the arc-shaped contour of the horizontal rotating rod (8), and the teeth on the gear (9) are meshed with each other. The side support plate (7) is provided with a lifting rack (10), the bottom of which is movably connected to the upper surface of the floating plate (2); a transverse plate (11) is fixed to the surface of the side support plate (7), the transverse plate (11) is penetrated by the lifting rack (10) and is slidably connected to the lifting rack (10) in an upper and lower limit position; the water level monitoring camera (12) is fixed to the arc profile near the two ends of the horizontal rotating rod (8); an adjusting device is provided on the floating plate (2), and the adjusting device includes a vertical rotating rod (13 ), the top of the vertical rotating rod (13) is coaxially fixedly connected with a rectangular sliding rod (14), and the top of the rotating column (5) is provided with a rectangular mounting hole (15) for mounting the rectangular sliding rod (14); a movable through hole (16) for the vertical rotating rod (13) to pass through is provided at the center of the circle on the upper surface of the floating plate (2), a guide sliding block (17) is fixed to the inner wall of the movable through hole (16), and an outer spiral groove (18) cooperating with the guide sliding block (17) is provided on the arc profile of the vertical rotating rod (13);A display device for visually displaying the height change of the water level is provided on the inner wall of the outer spiral groove (18), and the display device comprises a rubber sealing tube (19) spirally wound on the inner wall of the outer spiral groove (18) and a support vertical plate (22) fixed on the upper surface of the connection frame (6), wherein: the inner wall of the rubber sealing tube (19) is wrapped with a pressure-sensitive switch module (20), and the pressure-sensitive switch module (20) is composed of a plurality of pressure-sensitive switch units (21) arranged linearly; a plurality of LED light strips (23) are fixed on the surface of the support vertical plate (22), and a solar panel assembly (25) is fixed on the top of the support vertical plate (22), and the solar panel assembly (25) is electrically connected to a rechargeable battery. ; 2. The method for monitoring groundwater level in geological survey according to claim 1, characterized in that: The number of the limiting rods (4) is two, and the two limiting rods (4) are symmetrically arranged with respect to the vertical center line of the floating plate (2).

Images