A borehole water level measuring device for hydrogeological exploration

Abstract

The invention discloses a borehole water level measuring device for hydrogeological exploration, which relates to the field of geological exploration technology, and comprises a water level pipe, a water inlet is provided below the side wall of the water level pipe, the water inlet is communicated with the inside of the water level pipe, a water inlet filter is fixedly installed below the inside of the water level pipe, a float is provided on the water inlet filter, a push rod is fixedly installed on the top of the float, a measuring mechanism is provided above the partition, a cleaning mechanism is provided below the inside of the water level pipe, the measuring mechanism comprises a measuring pipe, a piston, a mounting rod and a liquid level pipe, the measuring pipe is fixedly installed on the top wall of the partition, the piston is movably installed inside the measuring pipe, and the push rod penetrates upward through the bottom wall of the measuring pipe and is fixedly connected with the piston. The invention achieves the effect of cleaning the inside of the water inlet and the water inlet filter through the arrangement of the cleaning mechanism and the driving mechanism, avoids the situation that the water inlet filter is blocked by debris in the water, and ensures the accuracy of the measurement.

Description

Technical Field

[0001] The invention relates to the technical field of geological exploration, and in particular to a borehole water level measuring device used for hydrogeological exploration. Background Art

[0002] In hydrogeological surveys, a borehole water level measuring device is a device used to measure groundwater levels, usually consisting of a sensor, a signal transmission device, and a data acquisition system or recorder.

[0003] A Chinese patent with a search announcement number of CN115979382A discloses a borehole water level measuring device for hydrogeological exploration, which relates to the field of water level measurement technology and includes a water level tube, a fixed tube is fixedly connected to the cylindrical outer wall of the water level tube, and a mounting column is fixedly connected to the side of the fixed tube away from the water level tube; the invention uses the setting of a sliding measuring mechanism, and the water level floats upward and drives the measuring ruler to move through the float, so that the movement of the extrusion block drives the movement of the cylindrical block and the fixed column, and the movement of the fixed column drives the movement of the movable rod and the piston. Since there is red liquid inside the two ends of the cylindrical tube, the movement of the piston will squeeze the red liquid into the capillary tube. When the water level rises or falls, the red liquid will enter the corresponding capillary tube. Since the capillary tube is thin and made of transparent material, when the piston moves slightly, the red liquid entering the capillary tube can also move a long distance, which makes it easy to watch and clearly observe the small rise and fall of the water level, which is convenient for use.

[0004] However, the above invention has the following disadvantages:

[0005] In actual use, the hydrogeological exploration borehole water level measuring device needs to install the sensor part into the borehole to ensure that the sensor is in contact with the groundwater, and some debris and small stones may remain in the groundwater. In the above invention, small holes are opened on the conical plate, and debris and small stones may block the conical plate. At the same time, the debris adheres to the float, which easily affects the buoyancy of the float, resulting in poor measurement accuracy. Summary of the invention

[0006] The object of the present invention is to provide a borehole water level measuring device for hydrogeological exploration to solve the problems raised in the above background technology.

[0007] The technical scheme of the present invention is: a borehole water level measuring device for hydrogeological exploration, comprising a water level pipe, a water inlet is provided below the side wall of the water level pipe, the water inlet is communicated with the inside of the water level pipe, a water inlet filter is fixedly installed below the inside of the water level pipe, a float is provided on the water inlet filter, a push rod is fixedly installed on the top of the float, a measuring mechanism is provided above the partition, and a cleaning mechanism is provided below the inside of the water level pipe;

[0008] The measuring mechanism includes a measuring tube, a piston, a mounting rod and a liquid level tube. The measuring tube is fixedly mounted on the top wall of the partition, the piston is movably mounted inside the measuring tube, the push rod penetrates upward through the bottom wall of the measuring tube and is fixedly connected with the piston, the mounting rod is fixedly mounted on the top wall of the water level tube, a scale is provided on the liquid level tube, the liquid level tube is embedded inside the mounting rod, a connecting port is provided between the measuring tube and the liquid level tube, and the measuring tube and the liquid level tube are connected through the connecting port.

[0009] Preferably, the cleaning mechanism includes a mounting seat, a mounting arm, a movable rod, a cone block, a mounting spring, a rotating seat and a cleaning brush. The mounting seat is arranged inside the water level pipe and below the water inlet filter. There are four mounting arms, four movable rods and four cone blocks. The four mounting arms are evenly distributed and fixedly mounted on the side walls of the mounting seat. The four movable rods are respectively movably mounted inside the four mounting arms, and one end of the movable rods is located inside the mounting seat. The four cone blocks are respectively fixedly mounted on one end of the four movable rods that are far away from each other. The rotating seat is movably mounted on the mounting seat. The cleaning brush is fixedly mounted on the side wall of the rotating seat. A driving mechanism is arranged inside the water level pipe at a position corresponding to the cleaning mechanism.

[0010] Preferably, the driving mechanism includes a driving motor, a rotating shaft, a rotating plate and an extrusion block. The driving motor is embedded in the bottom wall inside the water level pipe, the rotating shaft is fixedly installed on the output end of the driving motor, the rotating plate is movably installed inside the mounting seat, the rotating shaft passes through the bottom wall of the mounting seat upward and is fixedly connected to the rotating plate, there are four extrusion blocks in total, the four extrusion blocks are evenly distributed and fixedly installed on the side wall of the rotating plate, and the bottom of the rotating seat passes through the top wall of the mounting seat downward and is fixedly connected to the rotating plate, and a motor cover is fixedly installed on the water level pipe at a position corresponding to the driving motor.

[0011] Preferably, the mounting springs are evenly distributed and movably mounted inside the four mounting arms and movably connected to the movable rod, and the cleaning brush fits against the bottom inclined surface of the water inlet filter.

[0012] Preferably, a partition is fixedly installed on the upper part of the water level pipe, connecting blocks are fixedly installed on both sides of the float, and two limit rods are fixedly installed on the bottom of the partition, and the two limit rods respectively penetrate the upper and lower walls of the two connecting blocks downward.

[0013] Preferably, an observation mechanism is arranged above the interior of the water level tube, and the observation mechanism includes a floating seat, a warning light, a movable plate, a reset spring and an electric telescopic rod. The floating seat has buoyancy and is movably installed inside the liquid level tube. The warning light is fixedly installed on the top of the floating seat.

[0014] Preferably, an installation groove is opened inside the water level pipe, the installation groove is connected with the inside of the connecting port, the movable plate is movably installed inside the installation groove, one end of the movable plate is located inside the connecting port, and the bottom wall of the movable plate is an inclined surface, and the return spring is movably installed inside the installation groove and connected to the movable plate.

[0015] Preferably, the electric telescopic rod is fixedly installed inside the water level pipe at a position corresponding to the movable plate, and the output end of the electric telescopic rod corresponds to the movable plate.

[0016] Preferably, the observation mechanism also includes a liquid replenishing tank, a liquid replenishing tube and a sealing cover. The liquid replenishing tank is embedded in the top of the water level tube at a position corresponding to the mounting rod, and the liquid replenishing tube is fixedly installed between the measuring tube and the liquid replenishing tank.

[0017] Preferably, the measuring tube and the liquid replenishing tank are connected through a liquid replenishing tube, an electric control valve is provided on the liquid replenishing tube, and a sealing cover is movably installed on the top of the liquid replenishing tank through a thread.

[0018] The present invention provides a borehole water level measuring device for hydrogeological exploration by improvement, which has the following improvements and advantages compared with the prior art:

[0019] First, the present invention is provided with a cleaning mechanism and a driving mechanism, and the driving motor is started. The driving motor drives the rotating plate to rotate through the rotating shaft. The rotation of the rotating plate will squeeze the movable rod, so that the movable rod will drive the cone block to move toward the water inlet. When the cone block moves to the inside of the water inlet, the cone block will push the stones or debris inside the water inlet out from the inside of the water inlet. The movable rod is movably connected by an installed spring. When the squeezing block is separated from the movable rod, the movable rod and the cone block will reset under the action of the installed spring. At the same time, the rotating plate will drive the rotating seat to rotate. The rotation of the rotating seat and the cleaning brush can clean the water inlet filter, thereby achieving the effect of cleaning the inside of the water inlet and the water inlet filter, avoiding the situation where the water inlet filter is blocked by debris, and ensuring the accuracy of the measurement.

[0020] Second, in the present invention, the float seat has buoyancy, is movably mounted inside the liquid level tube, and a warning light is fixedly mounted on the top of the float seat. When liquid enters the liquid level tube, the float seat and the warning light are driven to move, and the warning light can emit light, thereby increasing the eye-catching effect of the liquid level.

[0021] Thirdly, the present invention arranges a movable plate. When the liquid inside the measuring tube moves upward, the movable plate will be squeezed by the liquid and then move toward the inside of the mounting groove, so that the liquid can enter the inside of the liquid level tube. When the water level stops rising, the movable plate will be reset by the reset spring, thereby sealing the connecting port. At this time, liquid will still remain inside the liquid level tube, thereby achieving the effect of delayed observation.

[0022] Fourthly, in the present invention, the electric telescopic rod is fixedly installed at a position corresponding to the movable plate inside the water level tube, and the output end of the electric telescopic rod corresponds to the movable plate. After the observation is completed, the electric telescopic rod can be started, and the electric telescopic rod will squeeze the movable plate, so that the liquid inside the liquid level tube can return to the inside of the measuring tube, which is convenient for the next use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a diagram showing the internal structure of the water level pipe in the present invention;

[0026] Figure 3 It is a cross-sectional view of the internal structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the cleaning mechanism structure of the present invention;

[0028] Figure 5 For the present invention Figure 3 Enlarged view of point A in the middle.

[0029] Reference numerals:

[0030] 1. Water level pipe; 11. Water inlet; 12. Water inlet filter; 13. Float; 14. Partition; 15. Push rod; 16. Connecting block; 17. Limit rod; 2. Measuring mechanism; 21. Measuring tube; 22. Piston; 23. Mounting rod; 24. Liquid level pipe; 25. Connecting port; 3. Cleaning mechanism; 31. Mounting seat; 32. Mounting arm; 33. Movable rod; 34. Cone block; 35. Mounting spring; 36. Rotating seat; 37. Cleaning brush; 4. Driving mechanism; 41. Driving motor; 42. Rotating shaft; 43. Rotating plate; 44. Extrusion block; 45. Motor cover; 5. Observation mechanism; 51. Floating seat; 52. Warning light; 53. Mounting slot; 54. Movable plate; 55. Reset spring; 56. Electric telescopic rod; 57. Liquid replenishing tank; 58. Liquid replenishing tube; 59. Sealing cover. DETAILED DESCRIPTION

[0031] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention provides a borehole water level measuring device for hydrogeological exploration through improvement. The technical solution of the present invention is:

[0033] like Figures 1 to 5 As shown, an embodiment of the present invention provides a borehole water level measuring device for hydrogeological exploration, including a water level pipe 1, which is a hollow cylindrical structure. A plurality of water inlets 11 are opened below the side wall of the water level pipe 1, and the water inlets 11 are circular holes. The water inlets 11 are connected to the inside of the water level pipe 1, and the plurality of water inlets 11 are evenly distributed in a ring shape. A water inlet filter 12 is fixedly installed below the inside of the water level pipe 1, and the water inlet filter 12 is a conical structure. A float 13 is arranged on the water inlet filter 12, and the float 13 is a hollow spherical structure. The water inlet filter 12 can filter the water inside the water level pipe 1 to prevent impurities in the water from affecting the buoyancy of the float 13. A partition 14 is fixedly installed above the inside of the water level pipe 1, and the partition 14 is a circular plate. The top of the float 13 is fixedly installed There is a push rod 15, which is a cylindrical rod. Connecting blocks 16 are fixedly installed on both sides of the float 13. The connecting blocks 16 are blocks of rectangular structure. Two limiting rods 17 are fixedly installed on the bottom of the partition 14. The limiting rods 17 are cylindrical rods. The two limiting rods 17 penetrate the upper and lower walls of the two connecting blocks 16 downward respectively. Through the arrangement of the water inlet filter 12 and the float 13, when the water level pipe 1 is put into the water, water will enter the inside of the water level pipe 1 through the water inlet 11. Under the action of buoyancy, the float 13 moves upward under the action of buoyancy. At the same time, since the partition 14 is installed on the float 13, and the partition 14 is penetrated by the limiting rod 17, the float 13 will be limited by the limiting rod 17, and the float 13 moves straight upward. A measuring mechanism 2 is arranged above the partition 14;

[0034] Furthermore, the measuring mechanism 2 includes a measuring tube 21, a piston 22, a mounting rod 23 and a liquid level tube 24. The measuring tube 21 is a hollow cylindrical structure. The measuring tube 21 is fixedly mounted on the top wall of the partition 14. The piston 22 is movably mounted inside the measuring tube 21. The push rod 15 penetrates upward through the bottom wall of the measuring tube 21 and is fixedly connected to the piston 22. The measuring tube 21 is filled with a striking liquid. The mounting rod 23 is a rectangular structure. The mounting rod 23 is fixedly mounted on the top wall of the water level tube 1. The liquid level tube 24 is a transparent hollow cylindrical structure. The liquid level The tube 24 is provided with a scale, and the liquid level tube 24 is embedded in the interior of the mounting rod 23. A connecting port 25 is provided between the measuring tube 21 and the liquid level tube 24. The connecting port 25 is a circular hole. The measuring tube 21 and the liquid level tube 24 are connected through the connecting port 25. When the float 13 moves upward, the float 13 will drive the push rod 15 to move upward, thereby causing the piston 22 to move inside the measuring tube 21. The liquid inside the measuring tube 21 will enter the interior of the liquid level tube 24 through the connecting port 25. The rise and fall of the water level can be observed through the scale on the liquid level tube 24.

[0035] Furthermore, a cleaning mechanism 3 is provided at the lower part of the interior of the water level pipe 1, and the cleaning mechanism 3 includes a mounting seat 31, a mounting arm 32, a movable rod 33, a cone block 34, a mounting spring 35, a rotating seat 36 and a cleaning brush 37. The mounting seat 31 is a hollow circular structure, and the mounting seat 31 is arranged inside the water level pipe 1 below the water inlet filter 12. There are four mounting arms 32, movable rods 33 and cone blocks 34. The mounting arm 32 is a hollow rectangular structure, and the four mounting arms 32 are evenly distributed and fixedly installed on the side walls of the mounting seat 31. The movable rod 33 is a long strip of a rectangular structure, and the four movable rods 33 are movably installed on the four mounting arms respectively. 32, and one end of the movable rod 33 is located inside the mounting seat 31, the cone block 34 is a cone structure, and the four cone blocks 34 are respectively fixedly mounted on the ends of the four movable rods 33 that are far away from each other. There are a plurality of mounting springs 35, and the plurality of mounting springs 35 are evenly distributed and movably mounted inside the four mounting arms 32 and movably connected to the movable rod 33. The rotating seat 36 is a circular structure, and the rotating seat 36 is movably mounted on the mounting seat 31. The cleaning brush 37 is fixedly mounted on the side wall of the rotating seat 36, and the cleaning brush 37 is in contact with the bottom inclined surface of the water inlet filter 12. A driving mechanism 4 is arranged at a position corresponding to the cleaning mechanism 3 inside the water level pipe 1;

[0036] Furthermore, the driving mechanism 4 includes a driving motor 41, a rotating shaft 42, a rotating plate 43 and an extrusion block 44. The driving motor 41 is embedded in the bottom wall inside the water level pipe 1. The rotating shaft 42 is a cylindrical structure, and the rotating shaft 42 is fixedly installed on the output end of the driving motor 41. The rotating plate 43 is a circular structure, and the rotating plate 43 is movably installed inside the mounting seat 31. The rotating shaft 42 penetrates the bottom wall of the mounting seat 31 upward and is fixedly connected to the rotating plate 43. There are four extrusion blocks 44, and the four extrusion blocks 44 are evenly distributed and fixedly installed on the side wall of the rotating plate 43, and the bottom of the rotating seat 36 penetrates the top wall of the mounting seat 31 downward and is fixedly connected to the rotating plate 43. A motor cover 45 is fixedly installed at the position corresponding to the driving motor 41 on the water level pipe 1, and the motor cover 45 seals and protects the driving motor 41. Through the arrangement of the cleaning mechanism 3 and the driving mechanism 4, when the water level pipe 1 is located in the water, the stones in the water The rotating plate 43 is driven by the driving motor 41 to rotate, and the rotation of the rotating plate 43 can squeeze the movable rod 33, so that the movable rod 33 can drive the cone block 34 to move toward the water inlet 11. When the cone block 34 moves to the inside of the water inlet 11, the cone block 34 will push the stones or debris inside the water inlet 11 out of the water inlet 11, and the movable rod 33 is movably connected by the mounting spring 35. When the squeezing block 44 is separated from the movable rod 33, the movable rod 33 and the cone block 34 will be reset under the action of the mounting spring 35, and the rotating plate 43 will drive the rotating seat 36 to rotate. The rotation of the rotating seat 36 and the cleaning brush 37 can clean the water inlet filter 12, thereby avoiding the situation that the water inlet filter 12 is blocked by debris in the water.

[0037] Furthermore, an observation mechanism 5 is arranged above the interior of the water level tube 1, and the observation mechanism 5 includes a floating seat 51, a warning light 52, a movable plate 54, a reset spring 55 and an electric telescopic rod 56. The floating seat 51 is a circular structure, and the floating seat 51 has buoyancy. The floating seat 51 is movably installed inside the liquid level tube 24, and the warning light 52 is fixedly installed on the top of the floating seat 51. When liquid enters the interior of the liquid level tube 24, it will drive the floating seat 51 and the warning light 52 to move, and the warning light 52 can emit light, thereby improving the eye-catching effect of the liquid level. An installation groove 53 is opened inside the water level tube 1, and the installation groove 53 is a groove of a rectangular structure. The installation groove 53 is connected to the interior of the connecting port 25, and the movable plate 54 is a plate of a rectangular structure. The movable plate 54 is movably installed inside the installation groove 53, one end of the movable plate 54 is located inside the connecting port 25, and the bottom wall of the movable plate 54 is an inclined surface. The spring 55 is movably installed inside the installation groove 53 and connected to the movable plate 54. Through the setting of the movable plate 54, when the liquid inside the measuring tube 21 moves upward, the movable plate 54 will be squeezed by the liquid and then move toward the inside of the installation groove 53, so that the liquid can enter the inside of the liquid level tube 24. When the water level stops rising, the movable plate 54 will be reset under the action of the reset spring 55, and then the connecting port 25 will be sealed. At this time, liquid will still remain inside the liquid level tube 24, so as to achieve the effect of delayed observation. The electric telescopic rod 56 is fixedly installed in the position corresponding to the movable plate 54 inside the water level tube 1, and the output end of the electric telescopic rod 56 corresponds to the movable plate 54. After the observation is completed, the electric telescopic rod 56 can be started, and the electric telescopic rod 56 will squeeze the movable plate 54, so that the liquid inside the liquid level tube 24 can return to the inside of the measuring tube 21, which is convenient for next use;

[0038] Furthermore, the observation mechanism 5 also includes a liquid replenishing tank 57, a liquid replenishing tube 58 and a sealing cover 59. The liquid replenishing tank 57 is a hollow cylindrical structure. The liquid replenishing tank 57 is embedded in the top of the water level tube 1 at a position corresponding to the mounting rod 23. The interior of the liquid replenishing tank 57 is also filled with liquid. The liquid replenishing tube 58 is a cylindrical tube. The liquid replenishing tube 58 is fixedly installed between the measuring tube 21 and the liquid replenishing tank 57. The measuring tube 21 and the liquid replenishing tank 57 are connected through the liquid replenishing tube 58. An electric control valve is provided on the liquid replenishing tube 58. When the amount of liquid in the measuring tube 21 is insufficient, the liquid inside the measuring tube 21 can be supplemented with liquid through the liquid replenishing tube 58. The sealing cover 59 is movably installed on the top of the liquid replenishing tank 57 through threads, which is convenient for replenishing liquid in the liquid replenishing tank 57.

[0039] Specific implementation steps: through the arrangement of the water inlet filter 12 and the float 13, when the water level tube 1 is placed in water, water will enter the interior of the water level tube 1 through the water inlet 11, and the float 13 will move upward under the action of buoyancy, and the float 13 will drive the push rod 15 to move upward, thereby causing the piston 22 to move inside the measuring tube 21, and the liquid inside the measuring tube 21 will enter the interior of the liquid level tube 24 through the connecting port 25, and the rise and fall of the water level can be observed through the scale on the liquid level tube 24, and at the same time, when water enters the water level tube 1, the drive motor 41 is started, and the drive motor 41 drives the rotating plate 43 to rotate through the rotating shaft 42, and the rotation of the rotating plate 43 will The movable rod 33 is squeezed, so that the movable rod 33 will drive the cone block 34 to move toward the water inlet 11. When the cone block 34 moves to the inside of the water inlet 11, the cone block 34 will push the stones or debris inside the water inlet 11 out of the water inlet 11. The movable rod 33 is movably connected by the mounting spring 35. When the squeezing block 44 is separated from the movable rod 33, the movable rod 33 and the cone block 34 will be reset under the action of the mounting spring 35. At the same time, the rotating plate 43 will drive the rotating seat 36 to rotate. The rotation of the rotating seat 36 and the cleaning brush 37 can clean the water inlet filter 12, thereby avoiding the situation where the water inlet filter 12 is blocked by debris in the water.

[0040] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A borehole water level measuring device for hydrogeological exploration, comprising a water level pipe (1), a water inlet (11) is provided below the side wall of the water level pipe (1), the water inlet (11) is communicated with the inside of the water level pipe (1), and is characterized in that: A water inlet filter (12) is fixedly installed at the lower part of the water level pipe (1), a float (13) is arranged on the water inlet filter (12), a push rod (15) is fixedly installed on the top of the float (13), a measuring mechanism (2) is arranged above the partition (14), and a cleaning mechanism (3) is arranged at the lower part of the water level pipe (1); The measuring mechanism (2) comprises a measuring tube (21), a piston (22), a mounting rod (23) and a liquid level tube (24); the measuring tube (21) is fixedly mounted on the top wall of the partition (14); the piston (22) is movably mounted inside the measuring tube (21); the push rod (15) passes through the bottom wall of the measuring tube (21) upwards and is fixedly connected to the piston (22); the mounting rod (23) is fixedly mounted on the top wall of the water level tube (1); a scale is provided on the liquid level tube (24); the liquid level tube (24) is embedded inside the mounting rod (23); a connecting port (25) is provided between the measuring tube (21) and the liquid level tube (24); the measuring tube (21) and the liquid level tube (24) are connected via the connecting port (25); The cleaning mechanism (3) comprises a mounting seat (31), a mounting arm (32), a movable rod (33), a cone block (34), a mounting spring (35), a rotating seat (36) and a cleaning brush (37); the mounting seat (31) is arranged inside the water level pipe (1) and below the water inlet filter (12); there are four mounting arms (32), four movable rods (33) and four cone blocks (34); the four mounting arms (32) are evenly distributed and fixedly mounted on the side wall of the mounting seat (31); the four movable rods (33) are respectively movably mounted inside the four mounting arms (32); one end of the movable rods (33) is located inside the mounting seat (31); the four cone blocks (34) are respectively fixedly mounted on the ends of the four movable rods (33) that are away from each other; the rotating seat (36) is movably mounted on the mounting seat (31); the cleaning brush (37) is fixedly mounted on the side wall of the rotating seat (36); and a driving mechanism (4) is arranged inside the water level pipe (1) at a position corresponding to the cleaning mechanism (3); The driving mechanism (4) comprises a driving motor (41), a rotating shaft (42), a rotating plate (43) and an extrusion block (44); the driving motor (41) is embedded in the bottom wall of the water level pipe (1); the rotating shaft (42) is fixedly mounted on the output end of the driving motor (41); the rotating plate (43) is movably mounted inside the mounting seat (31); the rotating shaft (42) penetrates upward through the bottom wall of the mounting seat (31) and is fixedly connected to the rotating plate (43); there are four extrusion blocks (44) in total; the four extrusion blocks (44) are evenly distributed and fixedly mounted on the side wall of the rotating plate (43); the bottom of the rotating seat (36) penetrates downward through the top wall of the mounting seat (31) and is fixedly connected to the rotating plate (43); a motor cover (45) is fixedly mounted on the water level pipe (1) at a position corresponding to the driving motor (41); The mounting springs (35) are evenly distributed and movably mounted inside the four mounting arms (32) and are movably connected to the movable rod (33); the cleaning brush (37) is in contact with the bottom inclined surface of the water inlet filter (12).

2. A borehole water level measuring device for hydrogeological exploration according to claim 1, characterized in that: A partition plate (14) is fixedly mounted on the upper part of the water level pipe (1), connecting blocks (16) are fixedly mounted on both sides of the float (13), and two limit rods (17) are fixedly mounted on the bottom of the partition plate (14), the two limit rods (17) respectively penetrating the upper and lower wall surfaces of the two connecting blocks (16) downward.

3. A borehole water level measuring device for hydrogeological exploration according to claim 1, characterized in that: An observation mechanism (5) is arranged above the interior of the water level pipe (1), and the observation mechanism (5) comprises a floating seat (51), a warning light (52), a movable plate (54), a return spring (55), and an electric telescopic rod (56). The floating seat (51) has buoyancy and is movably mounted inside the liquid level pipe (24). The warning light (52) is fixedly mounted on the top of the floating seat (51).

4. A borehole water level measuring device for hydrogeological exploration according to claim 3, characterized in that: The water level pipe (1) is provided with a mounting groove (53) inside, the mounting groove (53) is communicated with the inside of the connecting port (25), a movable plate (54) is movably mounted inside the mounting groove (53), one end of the movable plate (54) is located inside the connecting port (25), and the bottom wall surface of the movable plate (54) is an inclined surface, and a return spring (55) is movably mounted inside the mounting groove (53) and connected to the movable plate (54).

5. A borehole water level measuring device for hydrogeological exploration according to claim 3, characterized in that: The electric telescopic rod (56) is fixedly mounted inside the water level pipe (1) at a position corresponding to the movable plate (54), and the output end of the electric telescopic rod (56) corresponds to the movable plate (54).

6. A borehole water level measuring device for hydrogeological exploration according to claim 3, characterized in that: The observation mechanism (5) further comprises a liquid replenishing tank (57), a liquid replenishing tube (58) and a sealing cover (59); the liquid replenishing tank (57) is mounted on the top of the water level tube (1) at a position corresponding to the mounting rod (23); and the liquid replenishing tube (58) is fixedly mounted between the measuring tube (21) and the liquid replenishing tank (57).

7. A borehole water level measuring device for hydrogeological exploration according to claim 6, characterized in that: The measuring tube (21) and the liquid replenishing tank (57) are connected via a liquid replenishing tube (58), an electric control valve is provided on the liquid replenishing tube (58), and a sealing cover (59) is movably mounted on the top of the liquid replenishing tank (57) via a thread.

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