Hydrogeological multilayer groundwater level surveying device and surveying method thereof

Abstract

The invention relates to the technical field of water level surveying devices, and discloses a hydrogeological multi-layer underground water level surveying device and a surveying method.The hydrogeological multi-layer underground water level surveying device comprises a support and a water sampling barrel, the support is provided with a winding mechanism, and the winding mechanism is used for adjusting the sampling height of the water sampling barrel; the upper part of one side of the water sample sampling barrel is communicated with a liquid inlet pipe, and the bottom of the water sample sampling barrel is fixedly connected with a balancing weight. In the sampling process, large-particle impurities in water are blocked through the filter screen, the impact force of water flow can be converted into the rotating force of the blades, the rotating shaft and the scraping rod, the function of automatically cleaning the impurities in the sampling process is achieved, and the rope winding condition caused by uncontrollable winding position is prevented through the adjusting mechanism; the dustproof mechanism prevents dust and stones from falling into the hydrological hole to affect sampling of a water sample in the surveying process, and the highest water level in the hydrological hole can be accurately known through the water level monitoring mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of water level surveying devices, in particular to a hydrogeological multi-layer groundwater level surveying device and a surveying method thereof. Background Art

[0002] Hydrogeology is a branch of geology, which refers to the various changes and movements of groundwater in nature. Hydrogeology is the science of studying groundwater. It mainly studies the distribution and formation of groundwater, the physical properties and chemical composition of groundwater, groundwater resources and their rational utilization, the adverse effects of groundwater on engineering construction and mining and their prevention and control, etc. With the development of science and the needs of production and construction, hydrogeology is divided into regional hydrogeology, groundwater dynamics, hydrogeochemistry, water supply hydrogeology, ore deposit hydrogeology, soil improvement hydrogeology and other branch disciplines; in the process of coal mining, multiple layers of groundwater affect the quality of coal. Therefore, it is necessary to drill hydrological holes before coal mining, and then use survey equipment to sample multiple layers of groundwater through the hydrological holes, and finally conduct qualitative analysis.

[0003] The patent document with the published announcement number CN112857517A discloses a hydrogeological multi-layer groundwater level survey device and its survey method. This published patent document facilitates the positioning of the survey rod in the survey well and automatically drives it to move down stably to different depths. This method can be applicable to the stable survey of groundwater levels at different depths, and is convenient for automatically alarming and reminding personnel and sampling groundwater when the groundwater level is reached, and is convenient for automatically driving the survey rod to move upward and out, so as to reduce the winding force of the rope by personnel, save time and effort, and facilitate use; however, the above-mentioned published patent document has the situation that the sampling cannot filter out impurities in the water sample, and for the patent document with the announcement number CN115900874A, additional energy is needed to control the power supply of the electromagnet to vibrate the filter plate to clean the impurities, and the impact force of the sampled water cannot be reasonably utilized, and the function of automatically cleaning impurities during the sampling process is not available. Summary of the invention

[0004] The purpose of the present invention is to provide a hydrogeological multi-layer groundwater level survey device and a survey method thereof, which solves the problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A multi-layer groundwater level survey device for hydrogeology comprises a bracket and a water sample taking cylinder, the bracket is provided with a winding mechanism, the winding mechanism is used to adjust the sampling height of the water sample taking cylinder, an upper part of one side of the water sample taking cylinder is connected with a liquid inlet pipe, and a counterweight block is fixedly connected with the bottom of the water sample taking cylinder, an electromagnetic valve is provided on the liquid inlet pipe, and a matching filter screen is fixedly installed at the end of the liquid inlet pipe, a rotating shaft passes through the filter screen and is rotatably connected, a paddle is fixedly installed at one end of the rotating shaft, and a scraper rod is fixedly installed at the other end of the rotating shaft, a part of the rotating shaft is inside the electromagnetic valve, the paddle is inside the electromagnetic valve, the scraper rod contacts with the filter screen, and the scraper rod is adapted to the filter screen, a support member is sleeved on the rotating shaft and is rotatably connected, and the upper and lower ends of the support member are clamped with the inner wall of the electromagnetic valve;

[0007] The winding mechanism includes a winding roller and a winding motor, the winding roller is inside the bracket, the winding motor is fixedly installed on one side of the bracket, the middle of the winding roller passes through and is connected with a winding shaft by interference fit, and a rope is wound on the winding roller, one end of the winding shaft is rotatably installed with the bracket, and the other end of the winding shaft is fixedly installed with the output end of the winding motor, the top of the water sampling tube is connected with a matching tube cover by bolts, the top of the tube cover is fixedly connected with a lifting ring, and the end of the rope is connected with the lifting ring;

[0008] The bracket is provided with an adjustment mechanism and a dustproof mechanism, the adjustment mechanism is used to adjust the winding position of the rope, the dustproof mechanism is used to cover the hydrological hole of coal mine drilling, and a water level monitoring mechanism is provided on one side of the water sampling tube, and the water level monitoring mechanism is used to monitor whether the water sampling tube reaches below the water sample level.

[0009] As a further solution of the present invention: the adjusting mechanism includes an adjusting block and an adjusting motor, the adjusting block is located below the winding roller, the adjusting motor is fixedly mounted on one side of the bracket, a reciprocating screw and a horizontal axis pass through the adjusting block, and a rope hole is provided on the adjusting block, the adjusting block is connected to the reciprocating screw by threads, and the adjusting block is slidably connected to the horizontal axis, one end of the reciprocating screw is rotatably mounted on the bracket, and the other end of the reciprocating screw is fixedly mounted on the output end of the adjusting motor, and the two ends of the horizontal axis are respectively fixedly mounted on the inner walls on both sides of the bracket.

[0010] As a further solution of the present invention: the dustproof mechanism includes a cover plate and four L-shaped parts, through holes are opened at the front and rear parts of both sides of the bracket, the cover plate is located below the winding roller, and a circular hole is opened in the middle of the cover plate, the four L-shaped parts are fixedly installed at the four corners of the top of the cover plate, and a vertical shaft passes through and is slidably connected to the L-shaped part, a spring is sleeved on the vertical shaft, one side of the top of the L-shaped part is located inside the through hole, and the L-shaped part is slidably connected to the through hole, the upper and lower ends of the vertical shaft are fixedly installed to the top and bottom inner walls of the through hole respectively, the lower end of the spring is fixedly connected to the top of the L-shaped part, and the upper end of the spring is fixedly connected to the top inner wall of the through hole.

[0011] As a further solution of the present invention: the water level monitoring mechanism includes a U-shaped part and a sliding shaft, the U-shaped part is fixedly installed on one side of the water sampling tube, and an annular wireless touch controller is fixedly installed on the top inner wall of the U-shaped part, the sliding shaft is fixedly installed inside the U-shaped part, and a foam ring is sleeved on the sliding shaft, and a touch rod matching the annular wireless touch controller is fixedly installed on the top of the foam ring.

[0012] As a further solution of the present invention: a ceramic ring is fixedly connected to the inner wall of the rope hole, and the rope passes through the rope hole.

[0013] As a further solution of the present invention: a plurality of U-shaped blocks are fixedly connected to the inner wall of the circular hole at equal intervals, a ball is rotatably connected inside the U-shaped block, and the rope passes through the circular hole.

[0014] As a further solution of the present invention: a power box is fixedly installed on the bottom of the counterweight block, a wireless controller is embedded in the front side of the power box, and a storage power supply is arranged inside the power box, the solenoid valve and the annular wireless touch controller are electrically connected to the storage power supply through the wireless controller, and the wireless controller is wirelessly connected to a mobile phone terminal.

[0015] As a further solution of the present invention: the front and rear parts of both sides of the bracket are fixedly connected with mounting plates, and the mounting plates are provided with mounting holes.

[0016] A hydrogeological multi-layer groundwater level survey method, characterized in that the survey method comprises the following steps:

[0017] S1: First, the survey device is placed at the hydrological hole drilled in the coal mine, and fixedly installed through the mounting holes opened on the mounting plate. During the installation process, the cover plate will first contact the top of the hydrological hole, so that the L-shaped piece squeezes the spring and moves along the through hole, so that the cover plate covers and presses against the top of the hydrological hole, preventing dust and stones from falling into the hydrological hole during the survey and affecting the sampling of water samples;

[0018] S2: The winding motor drives the winding roller to rotate through the winding shaft, and the rope is released to release the water sampling tube. When the water sampling tube reaches the highest water level of the hydrological hole, the foam ring will not sink due to the buoyancy until the touch rod on the top of the foam ring contacts the annular wireless touch controller, and the highest water level in the hydrological hole can be accurately known;

[0019] S3: When the water sampling tube reaches the required water level for sampling, the wireless controller connected by the mobile phone controls the solenoid valve to be in the open state, and water flows into the water sampling tube through the liquid inlet pipe for rapid sampling. The large particles of impurities in the water are blocked by the filter, and the water flow entering the liquid inlet pipe will hit the paddle. The impact force of the water flow drives the paddle and the shaft to rotate, thereby driving the scraper to rotate, cleaning the large particles of impurities blocked by the filter, preventing the large particles of impurities from blocking the filter, and realizing the function of automatically cleaning impurities during sampling;

[0020] S4: The water sample tube can be lifted out of the water surface by reversing the winding motor. At the same time, the adjusting motor drives the reciprocating screw to rotate, and the adjusting block is driven to move back and forth horizontally through the reciprocating screw and the horizontal axis, so that the winding position of the rope moves back and forth along the winding roller to prevent the rope from being entangled due to the uncontrollable winding position.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] 1. By controlling the solenoid valve to be in the open state, water flows into the water sampling tube through the liquid inlet pipe for rapid sampling. The large particles of impurities in the water are blocked by the filter, and the water flow entering the liquid inlet pipe will hit the paddle. The impact force of the water flow drives the paddle and the shaft to rotate, thereby driving the scraper to rotate, cleaning the large particles of impurities blocked by the filter, preventing large particles of impurities from blocking the filter, and realizing the function of automatically cleaning impurities during sampling.

[0023] 2. The reciprocating screw is driven to rotate by adjusting the motor. The reciprocating screw drives the adjusting block to move back and forth horizontally through the horizontal axis, so that the winding position of the rope moves back and forth along the winding roller to prevent the rope from being entangled due to the uncontrollable winding position. The ceramic ring reduces the friction between the rope and the rope hole.

[0024] 3. Through the interaction between the through hole, L-shaped piece, vertical axis and spring, the cover plate can cover and press against the top of the hydrological hole during the installation of the bracket to prevent dust and stones from falling into the hydrological hole and affecting the sampling of water samples during the survey. When the rope is released or reeled in, it contacts the ball bearing and drives the ball bearing to rotate, reducing the friction between the rope and the round hole.

[0025] 4. When the water sampling tube reaches the highest water level of the hydrological hole, the foam ring will not sink due to the buoyancy until the touch rod on the top of the foam ring contacts the annular wireless touch controller, and the highest water level in the hydrological hole can be accurately known. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the water sampling tube of the present invention;

[0029] Figure 3 It is a structural schematic diagram of the installation of the liquid inlet pipe and the filter screen of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the regulating mechanism of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the dustproof mechanism of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the water level monitoring mechanism of the present invention;

[0033] Figure 7 For the present invention Figure 4 The enlarged view of point A in the middle;

[0034] Figure 8 For the present invention Figure 5 Enlarged view of point B in the middle.

[0035] In the figure: 1, bracket; 2, winding mechanism; 21, winding roller; 22, winding motor; 23, winding shaft; 24, rope; 3, water sampling tube; 31, tube cover; 32, lifting ring; 33, liquid inlet pipe; 34, solenoid valve; 35, filter screen; 36, counterweight block; 37, power box; 38, wireless controller; 39, rotating shaft; 310, paddle; 311, scraper rod; 312, support member; 4, adjustment mechanism; 41, adjustment block; 42. Adjusting motor; 43. Reciprocating screw; 44. Horizontal axis; 45. Rope hole; 46. Ceramic ring; 5. Dust-proof mechanism; 51. Cover plate; 52. L-shaped piece; 53. Vertical axis; 54. Spring; 55. Round hole; 56. U-shaped block; 57. Ball bearing; 6. Water level monitoring mechanism; 61. U-shaped piece; 62. Sliding shaft; 63. Ring-shaped wireless touch controller; 64. Foam ring; 65. Touch rod; 7. Through hole; 8. Mounting plate; 9. Mounting hole. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] Embodiment 1:

[0038] See also Figure 1-3 The present invention provides a multi-layer groundwater level survey device for hydrogeology, comprising a bracket 1 and a water sampling tube 3, characterized in that: the front and rear parts of both sides of the bracket 1 are fixedly connected with mounting plates 8, the mounting plates 8 are provided with mounting holes 9, a winding mechanism 2 is arranged on the bracket 1, the winding mechanism 2 is used to adjust the sampling height of the water sampling tube 3, the winding mechanism 2 comprises a winding roller 21 and a winding motor 22, the winding roller 21 is located inside the bracket 1, the winding motor 22 is fixedly installed on one side of the bracket 1, a winding shaft 23 is passed through the middle of the winding roller 21 and is connected with an interference fit, and a rope 24 is wound on the winding roller 21, one end of the winding shaft 23 is rotatably mounted with the bracket 1, and the other end of the winding shaft 23 is fixedly mounted with the output end of the winding motor 22, the top of the water sampling tube 3 is connected with a matching tube cover 31 by bolts, the top of the tube cover 31 is fixedly connected with a lifting ring 32, and the end of the rope 24 is connected with the lifting ring 32;

[0039] The winding motor 22 drives the winding shaft 23 to rotate, and the winding shaft 23 drives the winding roller 21 to rotate, so as to release and reel in the rope 24, thereby realizing the rapid release and lifting of the water sample taking tube 3.

[0040] The upper part of one side of the water sampling tube 3 is connected with a liquid inlet pipe 33, and the bottom of the water sampling tube 3 is fixedly connected with a counterweight block 36, a solenoid valve 34 is provided on the liquid inlet pipe 33, and a matching filter screen 35 is fixedly installed at the end of the liquid inlet pipe 33, a rotating shaft 39 passes through and is rotatably connected to the filter screen 35, a paddle 310 is fixedly installed at one end of the rotating shaft 39, and a scraper rod 311 is fixedly installed at the other end of the rotating shaft 39, a part of the rotating shaft 39 is inside the solenoid valve 34, the paddle 310 is inside the solenoid valve 34, and the scraper rod 311 is fixedly installed. 1 is in contact with the filter 35, and the scraper rod 311 is adapted to the filter 35, a support member 312 is sleeved on the rotating shaft 39 and rotatably connected, the upper and lower ends of the support member 312 are clamped with the inner wall of the electromagnetic valve 34, a power box 37 is fixedly installed at the bottom of the counterweight 36, a wireless controller 38 is embedded and installed on the front side of the power box 37, and a storage power source is arranged inside the power box 37, the electromagnetic valve 34 and the annular wireless touch controller 63 are electrically connected to the storage power source through the wireless controller 38, and the wireless controller 38 is wirelessly connected to the mobile phone terminal;

[0041] The wireless controller 38 connected wirelessly by the mobile phone controls the solenoid valve 34 to be in an open state, and water flows into the water sampling tube 3 through the liquid inlet pipe 33 for rapid sampling. Large particles of impurities in the water are blocked by the filter 35, and the water flow entering the liquid inlet pipe 33 will hit the paddle 310. The impact force of the water flow drives the paddle 310 and the rotating shaft 39 to rotate, thereby driving the scraper rod 311 to rotate, cleaning the large particles of impurities blocked by the filter 35, preventing the large particles of impurities from blocking the filter 35, and realizing the function of automatically cleaning impurities during the sampling process.

[0042] Embodiment 2:

[0043] See also Figure 1-2 and Figure 4-8 , on the basis of the first embodiment, the present invention provides a hydrogeological multi-layer groundwater level survey device and a survey method thereof, wherein the bracket 1 is provided with an adjustment mechanism 4 and a dustproof mechanism 5, the adjustment mechanism 4 is used to adjust the winding position of the rope 24, the dustproof mechanism 5 is used to cover the hydrological hole drilled in the coal mine, and a water level monitoring mechanism 6 is provided on one side of the water sampling tube 3, the water level monitoring mechanism 6 is used to monitor whether the water sampling tube 3 reaches below the water sample level;

[0044] The adjusting mechanism 4 includes an adjusting block 41 and an adjusting motor 42. The adjusting block 41 is located below the winding roller 21. The adjusting motor 42 is fixedly mounted on one side of the bracket 1. A reciprocating screw 43 and a horizontal shaft 44 are passed through the adjusting block 41, and a rope hole 45 is opened on the adjusting block 41. The adjusting block 41 is connected to the reciprocating screw 43 through threads, and the adjusting block 41 is slidably connected to the horizontal shaft 44. One end of the reciprocating screw 43 is rotatably mounted on the bracket 1, and the other end of the reciprocating screw 43 is fixedly mounted on the output end of the adjusting motor 42. The two ends of the horizontal shaft 44 are respectively fixedly mounted on the inner walls of both sides of the bracket 1. A ceramic ring 46 is fixedly connected to the inner wall of the rope hole 45, and the rope 24 passes through the rope hole 45.

[0045] The reciprocating screw 43 is driven to rotate by the adjusting motor 42, and the reciprocating screw 43 drives the adjusting block 41 to move back and forth laterally through the transverse axis 44, so that the winding position of the rope 24 moves back and forth along the winding roller 21, thereby preventing the rope 24 from being entangled due to the uncontrollable winding position, and the ceramic ring 46 reduces the friction between the rope 24 and the rope hole 45.

[0046] The dust-proof mechanism 5 includes a cover plate 51 and four L-shaped members 52. Through holes 7 are provided at the front and rear parts of both sides of the bracket 1. The cover plate 51 is located below the winding roller 21, and a circular hole 55 is provided in the middle of the cover plate 51. The four L-shaped members 52 are fixedly installed at the four corners of the top of the cover plate 51, and a vertical shaft 53 passes through and is slidably connected to the L-shaped member 52. A spring 54 is sleeved on the vertical shaft 53. One side of the top of the L-shaped member 52 is located inside the through hole 7, and the L-shaped member 52 is slidably connected to the through hole 7. The upper and lower ends of the vertical shaft 53 are fixedly installed to the top and bottom inner walls of the through hole 7 respectively. The lower end of the spring 54 is fixedly connected to the top of the L-shaped member 52, and the upper end of the spring 54 is fixedly connected to the top inner wall of the through hole 7. A number of U-shaped blocks 56 are fixedly connected to the inner wall of the circular hole 55 at equal intervals. A ball 57 is rotatably connected to the inside of the U-shaped block 56, and the rope 24 passes through the circular hole 55.

[0047] Through the interaction among the through hole 7, the L-shaped piece 52, the vertical shaft 53 and the spring 54, the cover plate 51 can cover and press against the top of the hydrological hole during the installation of the bracket 1, thereby preventing dust and stones from falling into the hydrological hole and affecting the sampling of water samples during the survey. In the process of releasing or winding, the rope 24 contacts the ball 57, which drives the ball 57 to rotate, thereby reducing the friction between the rope 24 and the circular hole 55.

[0048] The water level monitoring mechanism 6 includes a U-shaped member 61 and a sliding shaft 62. The U-shaped member 61 is fixedly mounted on one side of the water sampling tube 3, and a ring-shaped wireless touch controller 63 is fixedly mounted on the top inner wall of the U-shaped member 61. The sliding shaft 62 is fixedly mounted inside the U-shaped member 61, and a foam ring 64 is sleeved on the sliding shaft 62. A touch rod 65 matching the ring-shaped wireless touch controller 63 is fixedly mounted on the top of the foam ring 64.

[0049] When the water sampling tube 3 reaches the highest water level of the hydrological hole, the foam ring 64 will not sink due to the buoyancy until the touch rod 65 on the top of the foam ring 64 contacts the annular wireless touch controller 63, so that the highest water level in the hydrological hole can be accurately known.

[0050] Embodiment three:

[0051] See also Figure 1-8 Based on the first and second embodiments, the present invention provides a hydrogeological multi-layer groundwater level survey method, the survey method includes the following steps:

[0052] S1: First, the surveying device is placed at the hydrological hole drilled in the coal mine, and fixedly installed through the mounting hole 9 opened on the mounting plate 8. During the installation process, the cover plate 51 will first contact the top of the hydrological hole, so that the L-shaped member 52 squeezes the spring 54 and moves along the through hole 7, so that the cover plate 51 covers and presses on the top of the hydrological hole, preventing dust and stones from falling into the hydrological hole during the survey and affecting the sampling of water samples;

[0053] S2: The winding motor 22 drives the winding roller 21 to rotate through the winding shaft 23, and releases the rope 24, so as to release the water sampling tube 3. When the water sampling tube 3 reaches the highest water level of the hydrological hole, the foam ring 64 will not sink due to the buoyancy until the touch rod 65 on the top of the foam ring 64 contacts the annular wireless touch controller 63, so that the highest water level in the hydrological hole can be accurately known.

[0054] S3: When the water sampling tube 3 reaches the required water level for sampling, the wireless controller 38 connected wirelessly by the mobile phone controls the solenoid valve 34 to be in an open state, and water flows into the water sampling tube 3 through the liquid inlet pipe 33 for rapid sampling. The large particles of impurities in the water are blocked by the filter 35, and the water flow entering the liquid inlet pipe 33 will hit the paddle 310. The impact force of the water flow drives the paddle 310 and the rotating shaft 39 to rotate, thereby driving the scraper 311 to rotate, cleaning the large particles of impurities blocked by the filter 35, preventing the large particles of impurities from blocking the filter 35, and realizing the function of automatically cleaning impurities during the sampling process;

[0055] S4: The water sample tube 3 can be lifted out of the water surface by reversing the winding motor 22. At the same time, the adjusting motor 42 drives the reciprocating screw 43 to rotate, and the adjusting block 41 is driven to move back and forth laterally through the reciprocating screw 43 and the horizontal axis 44, so that the winding position of the rope 24 moves back and forth along the winding roller 21 to prevent the rope 24 from being entangled due to the uncontrollable winding position.

[0056] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A hydrogeological multi-layer groundwater level survey device, comprising a support (1) and a water sampling tube (3), characterized in that: The support (1) is provided with a winding mechanism (2), and the winding mechanism (2) is used to adjust the sampling height of the water sample sampling tube (3). An upper part of one side of the water sample sampling tube (3) is connected with a liquid inlet pipe (33), and a counterweight block (36) is fixedly connected to the bottom of the water sample sampling tube (3). An electromagnetic valve (34) is provided on the liquid inlet pipe (33), and a matching filter screen (35) is fixedly installed at the end of the liquid inlet pipe (33). A rotating shaft (39) passes through and is rotatably connected to the filter screen (35), and the rotating shaft (39) A paddle (310) is fixedly mounted on one end of the rotating shaft (39), and a scraper rod (311) is fixedly mounted on the other end of the rotating shaft (39); a portion of the rotating shaft (39) is located inside the solenoid valve (34); the paddle (310) is located inside the solenoid valve (34); the scraper rod (311) is in contact with the filter screen (35), and the scraper rod (311) is adapted to the filter screen (35); a support member (312) is sleeved on the rotating shaft (39) and is rotatably connected thereto; the upper and lower ends of the support member (312) are clamped to the inner wall of the solenoid valve (34); The winding mechanism (2) comprises a winding roller (21) and a winding motor (22), wherein the winding roller (21) is located inside the bracket (1), and the winding motor (22) is fixedly mounted on one side of the bracket (1), and a winding shaft (23) passes through the middle of the winding roller (21) and is connected by interference fit, and a rope (24) is wound on the winding roller (21), one end of the winding shaft (23) is rotatably mounted on the bracket (1), and the other end of the winding shaft (23) is fixedly mounted on the output end of the winding motor (22), and the top of the water sampling tube (3) is connected to a matching tube cover (31) by bolts, and the top of the tube cover (31) is fixedly connected to a lifting ring (32), and the end of the rope (24) is connected to the lifting ring (32); The bracket (1) is provided with an adjusting mechanism (4) and a dustproof mechanism (5), the adjusting mechanism (4) being used to adjust the winding position of the rope (24), the dustproof mechanism (5) being used to cover the hydrological hole for coal mine drilling, and a water level monitoring mechanism (6) being provided on one side of the water sampling tube (3), the water level monitoring mechanism (6) being used to monitor whether the water sampling tube (3) reaches below the water sample level.

2. A hydrogeological multi-layer groundwater level survey device according to claim 1, characterized in that: The adjusting mechanism (4) comprises an adjusting block (41) and an adjusting motor (42); the adjusting block (41) is located below the winding roller (21); the adjusting motor (42) is fixedly mounted on one side of the bracket (1); a reciprocating screw (43) and a transverse shaft (44) are passed through the adjusting block (41); a rope hole (45) is provided on the adjusting block (41); the adjusting block (41) is connected to the reciprocating screw (43) by threads, and the adjusting block (41) is slidably connected to the transverse shaft (44); one end of the reciprocating screw (43) is rotatably mounted on the bracket (1), and the other end of the reciprocating screw (43) is fixedly mounted on the output end of the adjusting motor (42); and two ends of the transverse shaft (44) are respectively fixedly mounted on the inner walls on both sides of the bracket (1).

3. A hydrogeological multi-layer groundwater level survey device according to claim 1, characterized in that: The dustproof mechanism (5) comprises a cover plate (51) and four L-shaped members (52). Through holes (7) are provided at the front and rear parts of both sides of the bracket (1). The cover plate (51) is located below the winding roller (21), and a round hole (55) is provided in the middle of the cover plate (51). The four L-shaped members (52) are fixedly mounted at the four corners of the top of the cover plate (51), and a vertical shaft (53) passes through and is slidably connected to the L-shaped member (52). A spring (54) is sleeved on the vertical shaft (53). One side of the top of the L-shaped member (52) is located inside the through hole (7), and the L-shaped member (52) is slidably connected to the through hole (7). The upper and lower ends of the vertical shaft (53) are fixedly mounted to the top and bottom inner walls of the through hole (7) respectively. The lower end of the spring (54) is fixedly connected to the top of the L-shaped member (52), and the upper end of the spring (54) is fixedly connected to the top inner wall of the through hole (7).

4. A hydrogeological multi-layer groundwater level survey device according to claim 1, characterized in that: The water level monitoring mechanism (6) comprises a U-shaped member (61) and a sliding shaft (62); the U-shaped member (61) is fixedly mounted on one side of the water sampling tube (3); an annular wireless touch controller (63) is fixedly mounted on the top inner wall of the U-shaped member (61); the sliding shaft (62) is fixedly mounted inside the U-shaped member (61); a foam ring (64) is sleeved on the sliding shaft (62); a touch rod (65) matching the annular wireless touch controller (63) is fixedly mounted on the top of the foam ring (64).

5. The hydrogeological multi-layer groundwater level survey device according to claim 2, characterized in that: A ceramic ring (46) is fixedly connected to the inner wall of the rope hole (45), and the rope (24) passes through the rope hole (45).

6. A hydrogeological multi-layer groundwater level survey device according to claim 3, characterized in that: A plurality of U-shaped blocks (56) are fixedly connected to the inner wall of the circular hole (55) at equal intervals, a ball (57) is rotatably connected inside the U-shaped block (56), and the rope (24) passes through the circular hole (55).

7. A hydrogeological multi-layer groundwater level survey device according to claims 1-3, characterized in that: A power box (37) is fixedly installed at the bottom of the counterweight (36), a wireless controller (38) is embedded in the front side of the power box (37), and a storage power supply is arranged inside the power box (37), the solenoid valve (34) and the annular wireless touch controller (63) are electrically connected to the storage power supply through the wireless controller (38), and the wireless controller (38) is wirelessly connected to a mobile phone terminal.

8. The hydrogeological multi-layer groundwater level survey device according to claim 1, characterized in that: The front and rear parts of both sides of the bracket (1) are fixedly connected with mounting plates (8), and the mounting plates (8) are provided with mounting holes (9).

9. A hydrogeological multi-layer groundwater level survey method, characterized in that: The survey method comprises the following steps: S1: First, the surveying device is placed at a hydrological hole drilled in a coal mine, and fixedly installed through a mounting hole (9) opened on a mounting plate (8). During the installation process, the cover plate (51) will first contact the top of the hydrological hole, so that the L-shaped member (52) squeezes the spring (54) and moves along the through hole (7), so that the cover plate (51) covers and presses against the top of the hydrological hole, thereby preventing dust and stones from falling into the hydrological hole during the survey process and affecting the sampling of water samples; S2: The winding motor (22) drives the winding roller (21) to rotate via the winding shaft (23), thereby releasing the rope (24), thereby releasing the water sampling tube (3). When the water sampling tube (3) reaches the highest water level of the hydrological hole, the foam ring (64) will not sink due to the buoyancy until the touch rod (65) on the top of the foam ring (64) contacts the annular wireless touch controller (63), thereby accurately knowing the highest water level in the hydrological hole. S3: When the water sampling tube (3) reaches the required water level for sampling, the wireless controller (38) connected wirelessly to the mobile phone controls the electromagnetic valve (34) to be in an open state, and water flows into the water sampling tube (3) through the liquid inlet pipe (33) for rapid sampling. Large particles of impurities in the water are blocked by the filter (35), and the water flow entering the liquid inlet pipe (33) hits the paddle (310). The impact force of the water flow drives the paddle (310) and the rotating shaft (39) to rotate, thereby driving the scraper (311) to rotate, cleaning the large particles of impurities blocked by the filter (35), preventing the large particles of impurities from blocking the filter (35), and realizing the function of automatically cleaning impurities during sampling; S4: The water sample tube (3) can be lifted out of the water surface by reversing the winding motor (22). At the same time, the adjusting motor (42) drives the reciprocating screw (43) to rotate, and the adjusting block (41) is driven to move back and forth laterally through the reciprocating screw (43) and the transverse shaft (44), so that the winding position of the rope (24) moves back and forth along the winding roller (21), thereby preventing the rope (24) from being entangled due to the uncontrollable winding position.

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