A groundwater level detection device for hydrogeological exploration

Abstract

The present invention provides an underground water level detection device for hydrogeological exploration, which relates to the technical field of water level detection, and comprises a movable frame, a mounting frame and a detection mechanism; a detection tube is fixedly arranged at the bottom of the mounting frame, and the detection mechanism comprises a first sealing box fixedly arranged on the upper surface of the detection tube, a storage battery is installed at the inner bottom of the first sealing box, and a connecting seat is fixedly arranged on the bottom surface of the detection tube. In this case, the pressure in the water finally controls the compressed gas in the air bag to sequentially pass through the first air pipe to expand the sealing ring, and then push the piston to move the inclined block through the second air pipe, so that the sealing ring can be expanded to perform secondary sealing treatment on the joint position between the water contact sensor and the connecting seat, and the inclined block can push the water contact sensor to rise to enhance the installation of the positioning pin and the connecting seat, thereby avoiding the stable operation of the water contact sensor under water conditions of different depths, and ensuring the accuracy and safety of data measurement.

Description

Technical Field

[0001] The invention relates to the technical field of water level detection, and in particular to underground water level detection equipment used for hydrogeological exploration. Background Art

[0002] Hydrogeological survey refers to the hydrogeological investigation and research work carried out to find out the hydrogeological conditions of a region. It aims to understand the causes, distribution and movement of groundwater and surface water, and provide a basis for the rational exploitation and utilization of water resources and the correct design and construction of foundation and piling projects. With the development of water level exploration technology, water level measuring devices have emerged.

[0003] Patent No. CN218724485U relates to a water level detection device. The water level detection device includes: a measuring component, a driving mechanism, a water contact sensor and a temperature sensor. The measuring component is provided with a pre-installed part. The water contact sensor and the temperature sensor are installed at intervals in the pre-installed part, and the water contact sensor and the temperature sensor are electrically connected to the measuring component. The driving mechanism is used to drive the measuring component to enter the underground to perform water level detection. Compared with the traditional water level detection method (which requires manual reading of the measurement data and can only perform a single water level measurement on the groundwater), the above-mentioned water level detection device installs the water contact sensor and the temperature sensor at intervals on the pre-installed part, which effectively ensures the data transmission effect of the water contact sensor and the temperature sensor on the measuring component, thereby ensuring the detection effect of the water level detection device.

[0004] However, in actual operation of the above-mentioned device, since the water contact sensor of the equipment and the power supply equipment and other electrical components inside the equipment are installed by electrical connection, when performing underwater measurement of the water level, especially in an environment such as groundwater, the pressure and water conditions inside the water body are unclear, which can easily cause leakage at the connection position of the water contact sensor, thereby easily affecting the electronic detection effect and causing data measurement errors.

[0005] Therefore, it is necessary to provide a groundwater level detection device for hydrogeological exploration to solve the above technical problems. Summary of the invention

[0006] The present invention provides a groundwater level detection device for hydrogeological exploration, which solves the problem in the related art that when measuring under different water conditions, especially groundwater conditions, excessive pressure or other reasons may affect the sealing of the connection, which may easily cause data measurement errors.

[0007] In order to solve the above technical problems, the present invention provides a groundwater level detection device for hydrogeological exploration, comprising a mobile frame, a mounting frame and a detection mechanism;

[0008] A detection tube is fixedly provided at the bottom of the mounting frame, and the detection mechanism includes a first sealed box fixedly provided on the upper surface of the detection tube, a battery is installed at the inner bottom of the first sealed box, a connecting seat is fixedly provided on the bottom surface of the detection tube, a waterproof tube is fixedly provided on the outer wall of the first sealed box and the connecting seat, a wire is arranged inside the waterproof tube, a latch is installed inside the connecting seat, a positioning pin is fixedly provided at the bottom end of the latch, a water touch sensor is installed at the bottom of the positioning pin, a mounting plate is fixedly provided on the outer wall of the connecting seat, and the number of the mounting plates is two, airbags are installed on the outside of the two mounting plates, first air pipes are sealedly installed on the outer walls of the two airbags, sealing rings are sealedly installed on opposite sides of the two first air pipes, pistons are installed inside the two mounting plates and below the two first air pipes, inclined blocks are installed on the outer ends of the two pistons, and second air pipes are sealedly installed on the bottoms of the two airbags.

[0009] Preferably, the upper and lower ends of the wire are electrically connected to the battery and the connection socket respectively, and the cross-section of the positioning pin is a conical structure that is narrow at the top and wide at the bottom.

[0010] Preferably, the inner wall of the sealing ring is in close contact with the joint between the water touch sensor and the connecting seat, the two second air pipes are sealed and installed with the two pistons, and the inclined surfaces of the two inclined blocks are in contact with both sides of the water touch sensor.

[0011] Preferably, a protective cover is fixedly provided on the front outer wall of the mobile frame, a winding mechanism is installed inside the protective cover, the winding mechanism comprises a motor installed inside the mobile frame, a driving pulley is connected to the output shaft keyway of the motor, a winding wheel is rotatably connected to the upper side of the mobile frame, a steel cable is wound inside the winding wheel, a driven pulley is connected to the keyway at the axis center of the outer wall of the winding wheel, and a belt is sleeved on the outer walls of the driving pulley and the driven pulley;

[0012] An adjusting mechanism is installed on the outside of the mobile frame, and the adjusting mechanism includes a truss welded to the outer wall of the mobile frame. A driving vehicle is slidably connected to the inside of the truss. A first guide wheel and a second guide wheel are installed on the outer wall of the driving vehicle. A third guide wheel at the same level as the second guide wheel is installed on the inner wall of the truss. A hanging plate is fixedly provided at the output end of the steel cable.

[0013] Preferably, the output end of the steel cable passes through the first guide wheel, the second guide wheel and the third guide wheel, the angle between the horizontal direction of the first guide wheel and the vertical direction of the second guide wheel is ninety degrees, and the mounting frame and the hanging plate are rotatably connected.

[0014] Preferably, a sealing mechanism is installed below the detection tube, and the sealing mechanism includes a second sealing box fixedly arranged on the bottom surface of the detection tube, a double-headed electric cylinder is installed inside the second sealing box, racks are installed at both ends of the double-headed electric cylinder, and a cone plate is fixedly arranged on the outer wall of the rack on the left side, and two first mounting seats and two second mounting seats are fixedly arranged on the lower surface of the detection tube and on both sides of the second sealing box, the interiors of the two first mounting seats are rotatably connected to a main gear, the interiors of the two second mounting seats are rotatably connected to a sealing plate via a coil spring, and the interiors of the two sealing plates and at the axis centers of the two second mounting seats are fixed with sub gears, a limiting groove is provided inside the detection tube, a lifting rod is slidably connected inside the limiting groove, and a positioning plate is fixedly arranged on the top of the lifting rod.

[0015] Preferably, the two racks are meshed with the two main gears, and the two main gears are meshed with the two sub-gears.

[0016] Preferably, it also includes a measuring mechanism, which includes an impeller rotatably connected to the inside of the detection tube, a mounting frame is fixedly provided on the top surface of the detection tube, a first limit plate and a second limit plate are respectively fixedly provided inside the mounting frame, a first gear is fixedly provided at the top of the impeller and located inside the mounting frame, a second gear is meshingly connected to one side of the first gear, a pointer is fixedly provided at the top axis of the second gear, a dial is fixedly provided on the upper surface of the second limit plate, and a transparent cover is installed on the upper surface of the mounting frame.

[0017] Preferably, the first gear is rotatably connected to the first limit plate, and the second gear is rotatably connected to the first limit plate.

[0018] Compared with the related art, the groundwater level detection device for hydrogeological exploration provided by the present invention has the following beneficial effects:

[0019] When the water contact sensor touches the water surface, the water contact sensor generates an electrical signal, which is then transmitted to the first sealed box through the wire, so that the water level height and the ground level height at this time are quickly recorded. When the water contact sensor is working, the battery inside the first sealed box continuously supplies power to the water contact sensor.

[0020] As the subsequent detection work is carried out, the water contact sensor will certainly continue to drop. Therefore, when the water contact sensor is completely submerged in the water, the pressure in the water will squeeze the two air bags and compress them. The internal gas will be compressed and quickly expand the sealing ring through the first air pipe. Therefore, the expansion of the sealing ring can quickly and tightly seal the joint gap between the water contact sensor and the connecting seat. At the same time, part of the gas will also rush into the piston through the second air pipe to push the inclined block to resist the water contact sensor, so that the water contact sensor will rise with the inclined surface of the inclined block.

[0021] Compared with the traditional connection and installation method of water touch sensor and conductive parts, this case adopts two air bags. When the water touch sensor enters the water body, the pressure in the water will control the compressed gas in the air bag to pass through the first air pipe to expand the sealing ring in turn, and then push the piston to move the inclined block through the second air pipe. In this way, two methods are adopted. One is that the sealing ring can be expanded to perform secondary sealing treatment on the joint position between the water touch sensor and the connecting seat. The other is that the inclined block pushes the water touch sensor up to enhance the installation of the positioning pin and the connecting seat. Therefore, this design further enhances the sealing and stability, thereby avoiding the stable operation of the water touch sensor under different water depths, and ensuring the accuracy and safety of data measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0024] Figure 2 for Figure 1 The schematic diagram of the winding mechanism structure shown;

[0025] Figure 3 for Figure 1 The schematic diagram of the regulating mechanism structure shown;

[0026] Figure 4 for Figure 1 The schematic cross-sectional structure diagram of the first sealing box, waterproof pipe and connecting seat shown;

[0027] Figure 5 for Figure 4 The airbag shown is subjected to a water pressure control schematic diagram of the working state of the sealing ring and the ramp block;

[0028] Figure 6 for Figure 1 The schematic diagram of the initial working state of the sealing mechanism shown;

[0029] Figure 7 for Figure 6 The schematic diagram of the working state in which the rack movement drives the sealing plates on both sides to open in linkage;

[0030] Figure 8 for Figure 1 The schematic diagram of the structure of the measuring mechanism in working state shown;

[0031] Fig. 9 for Figure 8 The schematic diagram of the split structure of the measuring mechanism shown;

[0032] Fig.10 for Figure 6 and Figure 8 The schematic diagram of the working state of the rack shown in the figure controls the cone plate to drive the lifting rod to rise and lock the impeller;

[0033] Fig.11 for Fig.10 Schematic diagram of the detailed structure of the impeller and positioning plate connection shown.

[0034] Description of Figure Numbers:

[0035] 1. Mobile rack;

[0036] 2. winding mechanism, 21. motor, 22. driving pulley, 23. winding wheel, 24. driven pulley, 25. belt, 26. steel cable;

[0037] 3. Adjustment mechanism, 31. Truss, 32. Driving vehicle, 33. First guide wheel, 34. Second guide wheel, 35. Third guide wheel, 36. Hanging plate;

[0038] 4. Mounting frame;

[0039] 5. Test tube;

[0040] 6. detection mechanism, 61. first sealing box, 62. battery, 63. waterproof tube, 64. wire, 65. connection seat, 66. latch, 67. positioning pin, 68. water contact sensor, 69. mounting plate, 610. air bag, 611. first air pipe, 612. sealing ring, 613. piston, 614. inclined block, 615. second air pipe;

[0041] 7. measuring mechanism, 71. mounting frame, 72. first limiting plate, 73. second limiting plate, 74. impeller, 75. first gear, 76. second gear, 77. dial, 78. transparent cover, 79. pointer;

[0042] 8. Sealing mechanism, 81. Second sealing box, 82. Double-head electric cylinder, 83. Rack, 84. Cone plate, 85. First mounting seat, 86. Second mounting seat, 87. Main gear, 88. Sealing plate, 89. Sub gear, 810. Limiting groove, 811. Lifting rod, 812. Positioning plate;

[0043] 9. Protective shield.

[0044] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The invention provides underground water level detection equipment for hydrogeological exploration.

[0047] First embodiment:

[0048] Please combine Figures 1 to 5 , a groundwater level detection device for hydrogeological exploration, comprising a mobile frame 1, a mounting frame 4 and a detection mechanism 6;

[0049] A detection tube 5 is fixedly arranged at the bottom of the mounting frame 4, and the detection mechanism 6 includes a first sealed box 61 fixedly arranged on the upper surface of the detection tube 5, a battery 62 is installed at the inner bottom of the first sealed box 61, a connecting seat 65 is fixedly arranged on the bottom surface of the detection tube 5, a waterproof tube 63 is fixedly arranged on the outer wall of the first sealed box 61 and the connecting seat 65, a wire 64 is arranged inside the waterproof tube 63, a plug 66 is installed inside the connecting seat 65, a positioning pin 67 is fixedly arranged at the bottom end of the plug 66, a water contact sensor 68 is installed at the bottom of the positioning pin 67, and the connecting The outer wall of the seat 65 is fixedly provided with a mounting plate 69, and the number of the mounting plates 69 is two. An airbag 610 is installed on the outside of the two mounting plates 69, and the outer walls of the two airbags 610 are sealed with a first air pipe 611, and the opposite side of the two first air pipes 611 is sealed with a sealing ring 612, and the inside of the two mounting plates 69 and below the two first air pipes 611 are installed with a piston 613, and the outer ends of the two pistons 613 are installed with a bevel block 614, and the bottom of the two airbags 610 is sealed with a second air pipe 615.

[0050] Combination Figure 4 and Figure 5: During the process of the detection tube 5 descending, the connection seat 65 at the bottom will be driven to descend together.

[0051] Combination Figure 4 and Figure 5 : When the water contact sensor 68 touches the water surface, the water contact sensor 68 generates an electrical signal, and the electrical signal is transmitted to the first sealed box 61 through the wire 64, so as to quickly record the water level at that time. When the water contact sensor 68 is working, the battery 62 inside the first sealed box 61 continuously supplies power to the water contact sensor 68;

[0052] As the subsequent detection work is carried out, the water touch sensor 68 will continue to descend. Therefore, when the water touch sensor 68 is completely submerged in the water, the pressure in the water will squeeze the two air bags 610 and compress them. The internal gas is compressed and quickly expands the sealing ring 612 through the first air pipe 611. Therefore, the expansion of the sealing ring 612 can quickly and tightly seal the joint gap between the water touch sensor 68 and the connecting seat 65. At the same time, part of the gas will rush into the piston 613 through the second air pipe 615 to push the inclined block 614 to resist the water touch sensor 68. In this way, the water touch sensor 68 will rise following the inclined surface of the inclined block 614.

[0053] The upper and lower ends of the wire 64 are electrically connected to the battery 62 and the connection socket 65 respectively. The cross section of the positioning pin 67 is a tapered structure with a narrow upper part and a wide lower part.

[0054] The inner wall of the sealing ring 612 is in close contact with the joint between the water touch sensor 68 and the connecting seat 65 , the two second air pipes 615 are sealed and installed with the two pistons 613 , and the inclined surfaces of the two inclined blocks 614 are in contact with the two sides of the water touch sensor 68 .

[0055] Preferably, the positioning pin 67 may be made of insulating rubber material.

[0056] It can be understood that the conical positioning pin 67 can ensure the stability of the electrical connection between the connecting seat 65 and the plug 66, thereby avoiding the occurrence of poor contact.

[0057] This embodiment: Compared with the traditional connection and installation method of the water touch sensor 68 and the conductive component, this case adopts two air bags 610. When the water touch sensor 68 enters the water body, the pressure in the water will control the compressed gas in the air bag 610 to expand the sealing ring 612 through the first air pipe 611 in turn, and then push the piston 613 to move the inclined block 614 through the second air pipe 615. In this way, two methods are adopted. One is to expand the sealing ring 612 to perform secondary sealing treatment on the joint position between the water touch sensor 68 and the connecting seat 65. The other is that the inclined block 614 pushes the water touch sensor 68 to rise to enhance the installation of the positioning pin 67 and the connecting seat 65. Therefore, this design further enhances the sealing and stability, thereby avoiding the stable operation of the water touch sensor 68 under different water depths, and ensuring the accuracy and safety of data measurement.

[0058] A protective cover 9 is fixedly provided on the front outer wall of the mobile frame 1, and a winding mechanism 2 is installed inside the protective cover 9. The winding mechanism 2 includes a motor 21 installed inside the mobile frame 1, and a driving pulley 22 is connected to the output shaft keyway of the motor 21. A winding wheel 23 is rotatably connected to the top of the mobile frame 1, and a steel cable 26 is wound inside the winding wheel 23. A driven pulley 24 is connected to the keyway at the axis center of the outer wall of the winding wheel 23, and a belt 25 is sleeved on the outer walls of the driving pulley 22 and the driven pulley 24;

[0059] An adjusting mechanism 3 is installed on the outside of the mobile frame 1, and the adjusting mechanism 3 includes a truss 31 welded to the outer wall of the mobile frame 1, and a driving vehicle 32 is slidably connected inside the truss 31. A first guide wheel 33 and a second guide wheel 34 are installed on the outer wall of the driving vehicle 32, and a third guide wheel 35 at the same level as the second guide wheel 34 is installed on the inner wall of the truss 31. A hanging plate 36 is fixedly provided at the output end of the steel cable 26.

[0060] The output end of the steel cable 26 passes through the first guide wheel 33, the second guide wheel 34 and the third guide wheel 35. The angle between the horizontal direction of the first guide wheel 33 and the vertical direction of the second guide wheel 34 is ninety degrees. The mounting frame 4 and the hanging plate 36 are rotatably connected.

[0061] Combination Figure 2 When the motor 21 is started, it can drive the driving pulley 22 to rotate. The rotating driving pulley 22 transmits power to the driven pulley 24 through the belt 25, so that the driven pulley 24 will rotate together with the driving pulley 22. Therefore, the driven pulley 24 can control the rotation of the winding wheel 23 to extend the internal steel cable 26, so that the detection tube 5 can be lowered toward the water surface.

[0062] Combination Figure 3: The driving vehicle 32 can move in the horizontal direction of the truss 31, and during the movement of the driving vehicle 32, the first guide wheel 33 and the second guide wheel 34 can be used to control the steel cable 26 to drive the hanging plate 36 to move in the horizontal direction of the truss 31, thereby changing the position of the detection tube 5. This makes it convenient for the user to adjust the initial descending position of the detection tube 5 in time according to different measuring surfaces.

[0063] Second embodiment:

[0064] See also Figure 6 and Figure 7 A sealing mechanism 8 is installed below the detection tube 5, and the sealing mechanism 8 includes a second sealing box 81 fixedly arranged on the bottom surface of the detection tube 5, a double-headed electric cylinder 82 is installed inside the second sealing box 81, and racks 83 are installed at both ends of the double-headed electric cylinder 82, wherein a cone plate 84 is fixedly arranged on the outer wall of the rack 83 on the left side, and two first mounting seats 85 and two second mounting seats 86 are fixedly arranged on the lower surface of the detection tube 5 and on both sides of the second sealing box 81, and the interiors of the two first mounting seats 85 are both rotatably connected with a main gear 87, and the interiors of the two second mounting seats 86 are both rotatably connected with a sealing plate 88 through a coil spring, and the interiors of the two sealing plates 88 and located at the axis of the two second mounting seats 86 are both fixed with a sub-gear 89, and a limiting groove 810 is provided inside the detection tube 5, and a lifting rod 811 is slidably connected inside the limiting groove 810, and a positioning plate 812 is fixedly arranged on the top of the lifting rod 811.

[0065] Combination Figure 6 : When the interior of the detection tube 5 is not working, the sealing plates 88 on both sides of the detection tube 5 seal and close the two ports.

[0066] Combination Figure 7 When the detection tube 5 needs to be used for measurement, the user can start the double-headed electric cylinder 82 to synchronously push the two racks 83 away from each other. When the rack 83 enters the position of the main gear 87, the rack 83 will drive the main gear 87 to rotate. At this time, the rotating main gear 87 will synchronously engage and control the sub-gear 89 to rotate. Therefore, the sub-gears 89 on both sides will drive the two sealing plates 88 to perform circular flipping motion, one clockwise and the other counterclockwise, so that the ports on both sides of the detection tube 5 can be opened.

[0067] The two racks 83 and the two main gears 87 are meshed with each other, and the two main gears 87 and the two sub-gears 89 are meshed with each other.

[0068] In this embodiment: when the detection tube 5 is in the process of descending, or in the process of descending without reaching the designated detection position in the water body, the two sealing plates 88 are used to block the two port positions of the detection tube 5. Therefore, this can ensure that the interior of the detection tube 5 is a safe environment before detection, thereby preventing external factors from affecting the interior of the detection tube 5 during the process of the detection tube 5 descending, and the detection tube 5 can also be sealed after the detection work is completed. Therefore, this design can also ensure the accuracy of the data after detection and prevent data deviation.

[0069] Third embodiment:

[0070] See also Figures 8 to 11 , also includes a measuring mechanism 7, the measuring mechanism 7 includes an impeller 74 rotatably connected to the inside of the detection tube 5, a mounting frame 71 is fixedly provided on the top surface of the detection tube 5, a first limit plate 72 and a second limit plate 73 are respectively fixedly provided inside the mounting frame 71, a first gear 75 is fixedly provided at the top of the impeller 74 and located inside the mounting frame 71, a second gear 76 is meshingly connected to one side of the first gear 75, a pointer 79 is fixedly provided at the top axis of the second gear 76, a dial 77 is fixedly provided on the upper surface of the second limit plate 73, and a transparent cover 78 is installed on the upper surface of the mounting frame 71.

[0071] Combination Figure 8 : When the ports on both sides of the detection tube 5 are fully opened, the water flow in the water body will flow into the interior of the detection tube 5, so that the water flow can impact the impeller 74 to rotate. When the impeller 74 rotates, it will drive the first gear 75 to rotate. The rotating first gear 75 will engage and drive the second gear 76 on one side to rotate. When the second gear 76 rotates, it will control the rotation of the pointer 79 above. The underwater flow data of the water level can be judged by the position of the pointer 79 on the dial 77.

[0072] The first gear 75 is rotatably connected to the first limiting plate 72 , and the second gear 76 is rotatably connected to the first limiting plate 72 .

[0073] In this embodiment: the descent of the detection tube 5 can not only detect the water level data, but also enter the appropriate water body through the opened detection tube 5, and the impeller 74 rotates due to the impact of the water flow, and the meshing rotation of the first gear 75 and the second gear 76 of two different diameters realizes the impeller 74 to judge the final display position of the pointer 79 on the dial 77 under the condition of the water flow velocity at a fixed time, so that the flow condition of the water body can be seen more intuitively.

[0074] Combination Fig.10 and Fig.11: When the detection tube 5 completes the flow detection in the water body, the user needs to control the rack 83 to move closer to each other again, so that the sealing plates 88 on both sides will automatically reset to seal the detection tube 5. Secondly, after the sealing is completed, the user can continue to control the movement of the rack 83. Finally, the inclined surface of the cone plate 84 will push the lifting rod 811 to rise, and finally the positioning plate 812 will rise to position and stabilize the impeller 74.

[0075] In this embodiment: when the detection tube 5 switches from the detection state to the reading state, the user can continuously control the movement of the rack 83 to realize the rising of the positioning plate 812 to lock and position the impeller 74 inside the detection tube 5. This design can not only seal the detection tube 5, but also stably lock the impeller 74, thereby preventing the impeller 74 from idling and ensuring the accuracy of the final reading.

[0076] Please refer to Figures 1 to 11 The working principle of the groundwater level detection device for hydrogeological exploration provided by the present invention is as follows:

[0077] Step S1: When the motor 21 is started, it can drive the driving pulley 22 to rotate. The rotating driving pulley 22 transmits power to the driven pulley 24 through the belt 25, so that the driven pulley 24 will rotate together with the driving pulley 22. Therefore, the driven pulley 24 can control the rotation of the winding wheel 23 to extend the internal steel cable 26, so that the detection tube 5 can be lowered toward the water surface. The driving vehicle 32 can move in the horizontal direction of the truss 31, and during the movement of the driving vehicle 32, the first guide wheel 33 and the second guide wheel 34 can be used to control the steel cable 26 to drive the hanging plate 36 to move in the horizontal direction of the truss 31, thereby changing the position of the detection tube 5. This is convenient for users to adjust the initial lowering position of the detection tube 5 in time according to different measuring surfaces.

[0078] Step S2: When the water touch sensor 68 touches the water surface, the water touch sensor 68 generates an electrical signal, which is then transmitted to the first sealing box 61 through the wire 64, and the water level at that time is quickly recorded. As the subsequent detection work is carried out, the water touch sensor 68 will continue to drop. Therefore, when the water touch sensor 68 is completely submerged in the water, the pressure in the water will squeeze the two air bags 610 and compress them. The internal gas is compressed and quickly expands the sealing ring 612 through the first air pipe 611. Therefore, the expansion of the sealing ring 612 can quickly and tightly seal the joint gap between the water touch sensor 68 and the connecting seat 65. At the same time, part of the gas will rush into the piston 613 through the second air pipe 615 to push the inclined block 614 to resist the water touch sensor 68, so that the water touch sensor 68 will rise along the inclined surface of the inclined block 614.

[0079] Step S3: When it is necessary to use the detection tube 5 for measurement, the user can start the double-headed electric cylinder 82 to synchronously push the two racks 83 away from each other. When the rack 83 enters the position of the main gear 87, the rack 83 will drive the main gear 87 to rotate. At this time, the rotating main gear 87 will synchronously engage and control the sub-gear 89 to rotate. Therefore, the sub-gears 89 on both sides will drive the two sealing plates 88 to perform circular flipping movements, one clockwise and the other counterclockwise. In this way, the ports on both sides of the detection tube 5 can be opened, and the water flow in the water body will flow into the interior of the detection tube 5, so that the water flow can impact the impeller 74 to rotate. When the impeller 74 rotates, it will drive the first gear 75 to rotate with it. The rotating first gear 75 will engage and drive the second gear 76 on one side to rotate. When the second gear 76 rotates, it will control the upper pointer 79 to rotate, and the underwater flow data of the water level can be judged by the position of the pointer 79 on the dial 77.

[0080] Step S4: After the detection tube 5 completes the flow detection in the water body, the user needs to control the rack 83 to move closer to each other again, so that the sealing plates 88 on both sides will automatically reset to seal the detection tube 5. Secondly, after the sealing is completed, the user can also continue to control the movement of the rack 83. Finally, the inclined surface of the cone plate 84 will push the lifting rod 811 to rise, so that the positioning plate 812 rises to position and stabilize the impeller 74.

[0081] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A groundwater level detection device for hydrogeological exploration, characterized in that: It includes a moving frame, a mounting frame and a detection mechanism; A detection tube is fixedly arranged at the bottom of the mounting frame, and the detection mechanism comprises a first sealing box fixedly arranged on the upper surface of the detection tube, a battery is installed at the inner bottom of the first sealing box, a connecting seat is fixedly arranged on the bottom surface of the detection tube, a waterproof tube is fixedly arranged on the outer wall of the first sealing box and the connecting seat, a wire is arranged inside the waterproof tube, a latch is installed inside the connecting seat, a positioning pin is fixedly arranged at the bottom end of the latch, a water contact sensor is installed at the bottom of the positioning pin, a mounting plate is fixedly arranged on the outer wall of the connecting seat, and the number of the mounting plates is two, airbags are installed on the outside of the two mounting plates, first air pipes are sealedly installed on the outer walls of the two airbags, sealing rings are sealedly installed on opposite sides of the two first air pipes, pistons are installed inside the two mounting plates and below the two first air pipes, inclined blocks are installed on the outer ends of the two pistons, and second air pipes are sealedly installed on the bottoms of the two airbags; The inner wall of the sealing ring is in close contact with the joint between the water touch sensor and the connecting seat, the two second air pipes are sealed and installed with the two pistons, and the inclined surfaces of the two inclined blocks are in contact with the two sides of the water touch sensor.

2. The underground water level detection device for hydrogeological exploration according to claim 1, characterized in that: The upper and lower ends of the wire are electrically connected to the battery and the connection seat respectively, and the cross section of the positioning pin is a tapered structure that is narrow at the top and wide at the bottom.

3. The underground water level detection device for hydrogeological exploration according to claim 1, characterized in that: A protective cover is fixedly arranged on the front outer wall of the mobile frame, a winding mechanism is installed inside the protective cover, the winding mechanism comprises a motor installed inside the mobile frame, a driving pulley is connected to the output shaft keyway of the motor, a winding wheel is rotatably connected to the upper part of the mobile frame, a steel cable is wound inside the winding wheel, a driven pulley is connected to the keyway at the axis center of the outer wall of the winding wheel, and a belt is sleeved on the outer walls of the driving pulley and the driven pulley; An adjusting mechanism is installed on the outside of the mobile frame, and the adjusting mechanism includes a truss welded to the outer wall of the mobile frame. A driving vehicle is slidably connected to the inside of the truss. A first guide wheel and a second guide wheel are installed on the outer wall of the driving vehicle. A third guide wheel at the same level as the second guide wheel is installed on the inner wall of the truss. A hanging plate is fixedly provided at the output end of the steel cable.

4. The underground water level detection device for hydrogeological exploration according to claim 3, characterized in that: The output end of the steel cable passes through the first guide wheel, the second guide wheel and the third guide wheel. The angle between the horizontal direction of the first guide wheel and the vertical direction of the second guide wheel is ninety degrees. The mounting frame and the hanging plate are rotatably connected.

5. The underground water level detection device for hydrogeological exploration according to claim 3, characterized in that: A sealing mechanism is installed below the detection tube, and the sealing mechanism includes a second sealing box fixedly arranged on the bottom surface of the detection tube, a double-headed electric cylinder is installed inside the second sealing box, racks are installed at both ends of the double-headed electric cylinder, and a cone plate is fixedly arranged on the outer wall of the rack on the left side, and two first mounting seats and two second mounting seats are fixedly arranged on the lower surface of the detection tube and on both sides of the second sealing box, the interiors of the two first mounting seats are rotatably connected with a main gear, the interiors of the two second mounting seats are rotatably connected with a sealing plate through a coil spring, and the interiors of the two sealing plates and at the axis centers of the two second mounting seats are fixed with sub gears, a limiting groove is provided inside the detection tube, a lifting rod is slidably connected inside the limiting groove, and a positioning plate is fixedly arranged on the top of the lifting rod.

6. The underground water level detection device for hydrogeological exploration according to claim 5, characterized in that: The two racks are meshed with the two main gears, and the two main gears are meshed with the two auxiliary gears.

7. The underground water level detection device for hydrogeological exploration according to claim 5, characterized in that: It also includes a measuring mechanism, which includes an impeller rotatably connected to the inside of the detection tube, a mounting frame is fixedly provided on the top surface of the detection tube, a first limit plate and a second limit plate are respectively fixedly provided inside the mounting frame, a first gear is fixedly provided at the top of the impeller and located inside the mounting frame, a second gear is meshingly connected to one side of the first gear, a pointer is fixedly provided at the top axis of the second gear, a dial is fixedly provided on the upper surface of the second limit plate, and a transparent cover is installed on the upper surface of the mounting frame.

8. The underground water level detection device for hydrogeological exploration according to claim 7, characterized in that: The first gear is rotatably connected to the first limiting plate, and the second gear is rotatably connected to the first limiting plate.

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