Portable automatic measuring instrument for groundwater level and well depth

Abstract

The invention discloses a portable automatic measuring instrument for groundwater level and well depth, comprising a mobile vehicle, a winch is installed on the top of the mobile vehicle, a traction rope is wound and installed on the outer side of the winch, a sinking column is fixedly connected to the end of the traction rope, a probe is installed on the bottom of the sinking column, a cleaning piece is rotatably connected to the bottom of the sinking column and sleeved on the outer side of the probe; the inclined surface of the mud at the bottom of the well is judged by the moving position of three sealing plates, when the position of the probe at the bottom of the sinking column is lower than the three sealing plates, it means that the probe has been inserted into the deep mud, and the depth of the probe position is read; when the position of any one of the sealing plates is lower than the probe, it means that the probe has not reached the bottom of the well, and the probe is blocked by the mud, at this time, the position of the probe plus the sealing plate minus the displacement distance is obtained, which is a more accurate water well depth than the probe.

Description

Technical Field

[0001] The invention relates to the field of groundwater level and well depth detection, and in particular to a portable groundwater level and well depth automatic measuring instrument. Background Art

[0002] Water resources are one of the natural environmental elements on which human beings depend for survival and development, and are an important part of the ecosystem. Among them, groundwater resources play an even more important role. In the vast areas of northern my country, groundwater accounts for more than 80% of the total domestic water supply. Due to long-term overload exploitation, most areas in northern my country are in a state of groundwater overexploitation, and some areas are in a state of serious overexploitation. Overexploitation of groundwater for a long time has led to a series of geological environmental problems such as a sharp drop in groundwater levels, aquifer drainage, and regional groundwater level drop funnels, as well as the occurrence of geological disasters such as ground subsidence, ground fissures, and karst collapse. Therefore, groundwater monitoring is becoming increasingly important to provide basic data support for more reasonable development, utilization, and protection of groundwater resources.

[0003] Chinese invention patent CN115523976A discloses a portable groundwater level and well depth measuring instrument and measuring method, including: a well depth water level combined probe, a winding reel frame; the winding reel is rotatably connected to the winding reel frame; a steel ruler cable is fixedly connected to one end of the well depth water level combined probe, and the steel ruler cable is inserted through the wire inlet cap, sealed with sealant, and can be used only after passing the corresponding pressure test to achieve watertightness, and the other end is fixedly connected to the winding reel; the well depth water level combined probe includes: the wire inlet cap is fixedly connected to the steel ruler cable; the probe cylinder is plugged into the bottom of the wire inlet cap, using interference fit and sealed with sealant. By designing the probe as a combination, the two functions of measuring water level and measuring well depth are integrated, which improves the convenience of measurement.

[0004] The above-mentioned equipment inserts a probe into the bottom of the well to detect the well depth and water level. In the process of measuring the well depth, there is often a large amount of silt at the bottom of the well. When the probe contacts the silt, it cannot continue to sink. The existing weighted counterweight allows the probe to penetrate the bottom of the silt, but in actual practice, the silt often prevents the probe from sinking, making it impossible for the probe to reach the bottom of the well, resulting in a large deviation in the measured well depth data. In summary, the device still has defects, and in the detection process, the silt at the bottom of the well exists in a complex state. When the silt surface is tilted, the probe often cannot be inserted into the bottom, and the measured well depth data will have errors.

[0005] Therefore, it is necessary to provide a portable groundwater level and well depth automatic measuring instrument to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a portable automatic groundwater level and well depth measuring instrument to solve the problem raised in the above-mentioned background technology that in the process of measuring the well depth, there is often a large amount of silt at the bottom of the well. When the probe contacts the silt, it cannot continue to sink. The existing weighted counterweight block allows the probe to penetrate the bottom of the silt, but in actual practice, the silt often prevents the probe from sinking, making it impossible for the probe to reach the bottom of the well, resulting in a large deviation in the measured well depth data. In addition, during the detection process, the state of the silt at the bottom of the well is complex. When the silt surface is tilted, the probe often cannot be inserted into the bottom, and the measured well depth data will have errors.

[0007] Based on the above ideas, the present invention provides the following technical solutions: comprising a mobile vehicle, a winch is installed on the top of the mobile vehicle, a traction rope is installed around the outside of the winch, a sinking column is fixedly connected to the end of the traction rope, a probe is installed at the bottom of the sinking column, and a cleaning piece is rotatably connected to the bottom of the sinking column and sleeved on the outside of the probe;

[0008] A floating frame is sleeved on the outside of the traction rope, and a locking piece for locking to the outside of the traction rope is arranged on the top of the floating frame;

[0009] A plurality of liquid inlet grooves for water intake are provided on the outside of the sinking column, and sealing members are provided on the outside of the plurality of liquid inlet grooves. A driving member is provided inside the sinking column. When the sealing member comes into contact with the sludge at the bottom of the well, the sealing member exposes the liquid inlet groove, allowing well water to flow into the sinking column and drive the cleaning member to rotate by pushing the driving member to clear the sludge, so that the probe reaches the bottom of the well.

[0010] As a further solution of the present invention: the cleaning piece includes a stirring drill bit rotatably connected to the bottom of the sinking column, and a connecting ring is fixedly connected to the top of the stirring drill bit. The connecting ring passes through the bottom of the sinking column and is rotatably connected to the sinking column, and a spiral groove is opened on the outside of the connecting ring.

[0011] As a further solution of the present invention: the sealing member includes a limit plate fixedly connected to the outside of the sinking column, a sealing plate is provided inside the limit plate sliding sleeve, the sealing plate is in contact with the outside of the sinking column, a through groove is provided on the outside of the sealing plate, the through groove is parallel to the liquid inlet groove, and a contact plate is hinged at the bottom end of the sealing plate.

[0012] As a further solution of the present invention: the sealing member also includes a rack fixedly connected to the outer side of the sealing plate, a fixed seat is provided on the outer side of the limiting plate, the fixed seat is fixedly connected to the outer side of the sinking column, a first pawl is sleeved on the outer side of the fixed seat, a first torsion spring is fixedly connected between the first pawl and the fixed seat, and one end of the first pawl is in contact with the rack.

[0013] As a further solution of the present invention: the driving member includes a pushing plate arranged on the pushing plate, a gravity column is fixedly connected to the inside of the sinking column, the pushing plate is sleeved on the outside of the gravity column and is slidably connected to the gravity column, a plurality of telescopic rods are fixedly connected between the pushing plate and the bottom end of the inside of the sinking column, a plurality of extrusion plates are fixedly connected to the bottom of the pushing plate, a plurality of the extrusion plates are annularly arranged around the connecting ring, a plurality of the extrusion plates are fixedly connected to one side close to the connecting ring, a portion of the sliding block extends to the inside of the spiral groove opened on the outside of the connecting ring and slidably cooperates with the connecting ring, a plurality of return springs are fixedly connected between the pushing plate and the bottom end of the inside of the sinking column.

[0014] As a further solution of the present invention: the locking member includes a plurality of mounting seats fixedly connected to the top of the floating frame, the plurality of mounting seats are distributed in a ring around the traction rope, a second pawl is provided on the outer side of the plurality of mounting seats, a second torsion spring is provided between the second pawl and the mounting seat, two ends of the second torsion spring are respectively fixedly connected to the mounting seat and the inner wall of the second pawl, a plurality of slots are provided on the outer side of the traction rope, the second pawl extends into the inside of the slot and contacts with the traction rope.

[0015] As a further solution of the present invention: the floating frame is provided with a plurality of grooves, each of which is provided with a limiting rod, each of which is fixedly connected to the floating frame, a floating block is slidably connected to the outer side of the limiting rod, and the floating block is arranged inside the groove and slidably cooperates with the floating frame.

[0016] As a further solution of the present invention: a plurality of the floating blocks are hinged with a pushing rod on one side away from the floating frame, one end of the pushing rod is hinged with a supporting rod, one end of the supporting rod is hinged to the floating frame, and both sides of the supporting rod are fixedly connected to the floating frame with elastic floating cloth.

[0017] As a further solution of the present invention: a guide frame is provided on the top of the mobile vehicle, an adjusting bolt is fixedly connected inside the guide frame, the adjusting bolt passes through the mobile vehicle and is detachably mounted on the mobile vehicle through a nut, a guide wheel is rotatably connected to the outer side of the guide frame, and the traction rope extends to the outer side of the guide wheel and slides with the guide wheel

[0018] As a further solution of the present invention: an operation terminal is installed on the outside of the mobile vehicle, a controller is installed on the outside of the mobile vehicle, the controller is electrically connected to the winch, the probe is electrically connected to the controller, displacement sensors are installed on the outside of multiple sealing plates, the displacement sensors are electrically connected to the controller, and the controller is bidirectionally connected to the operation terminal with wires.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The sealing plate slides upward on the outside of the limit plate. When the through groove opened on the outside of the sealing plate moves to the liquid inlet groove opened on the outside of the sinking column, the through groove and the fixed seat overlap at this time, and the external well water will quickly enter the inside of the sinking column. When the well water enters the inside of the sinking column, on the one hand, the weight of the sinking column itself is further increased, so that the sinking column can further accelerate the speed and improve the effect of passing through the silt. On the other hand, when the well water enters the inside of the sinking column, the pushing plate arranged inside the sinking column will drop due to the pressure of the water. When the pushing plate drops, the sliding block arranged on the side of the extrusion plate close to the connecting ring is pressed down, so that the sliding block outside the extrusion plate pushes the connecting ring to rotate along the spiral groove. When the connecting ring rotates, it drives the fixedly connected stirring drill bit to rotate. With the rotation of the stirring drill bit, the silt at the bottom of the well is cleared, so that the probe at the bottom of the sinking column can touch the bottom of the well, thereby achieving the effect of accurately measuring the well depth.

[0021] 2. Pull the first pawl through the first torsion spring so that the first pawl pushes the rack to get stuck, so that the sealing plate will not fall after rising, and a displacement sensor is installed on the sealing plate. The inclined surface of the mud at the bottom of the well can be judged by the moving position of the three sealing plates. When the position of the probe at the bottom of the sinking column is lower than the three sealing plates, it means that the probe has been inserted deep into the mud, and the probe position depth is read; when the position of any sealing plate is lower than the probe, it means that the probe has not reached the bottom of the well, and the probe is blocked by the mud. At this time, the position of the probe plus the sealing plate minus the displacement distance is a more accurate well depth than the probe.

[0022] 3. When the traction rope passes through the winch, through the buoyancy of the floating frame itself, and the second ratchet provided contacts the slot provided outside the traction rope, the traction rope will not get stuck when it falls, and as the sinking column reaches the bottom of the well, the floating frame floats on the water surface. When the traction rope is reeled in, the second torsion spring pulls the second ratchet, and then the second ratchet engages with the slot provided outside the traction rope, and the floating frame will not fall outside the traction rope. After reeling in, the water depth can be detected by observing the position of the traction rope where the floating frame is located, and a scale value is set on the outside of the floating frame to improve accuracy, so that the water level depth can be detected while detecting the well depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

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

[0025] Figure 2 It is a schematic diagram of the structure of the sinking column of the present invention;

[0026] Figure 3 It is a schematic diagram of the floating frame structure of the present invention;

[0027] Figure 4 It is a schematic diagram of the structure of the stirring drill bit of the present invention;

[0028] Figure 5 It is a partial cross-sectional schematic diagram of the sinking column of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the driving member of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the sealing member of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the locking member of the present invention;

[0032] Fig. 9 It is a schematic diagram of the limit rod structure of the present invention;

[0033] Fig.10 It is a schematic diagram of the control system of the present invention;

[0034] Fig.11 This is a schematic diagram of the sealing plate motion simulation.

[0035] In the figure: 1, mobile vehicle; 2, winch; 201, operating terminal; 3, traction rope; 301, card slot; 4, floating frame; 401, limit rod; 402, floating block; 403, push rod; 404, support rod; 405, floating cloth; 5, sinking column; 501, liquid inlet tank; 502, gravity column; 6, probe; 7, cleaning part; 701, stirring drill bit; 702, connecting ring; 703, spiral groove; 704, push plate ; 705, return spring; 706, extrusion plate; 707, sliding block; 708, telescopic rod; 801, sealing plate; 802, through groove; 803, limit plate; 804, rack; 805, fixed seat; 806, first pawl; 807, first torsion spring; 808, contact plate; 901, mounting seat; 902, second pawl; 903, second torsion spring; 10, guide frame; 101, guide wheel; 102, adjusting bolt. DETAILED DESCRIPTION

[0036] like Figures 1 to 10 As shown, the portable groundwater level and well depth automatic measuring instrument has the following embodiments: Example

[0037] The portable automatic measuring instrument for groundwater level and well depth comprises a mobile vehicle 1, a winch 2 is installed on the top of the mobile vehicle 1, a traction rope 3 is installed around the outside of the winch 2, a sinking column 5 is fixedly connected to the end of the traction rope 3, a probe 6 is installed at the bottom of the sinking column 5, a cleaning piece 7 is rotatably connected to the bottom of the sinking column 5 and sleeved on the outside of the probe 6; a guide frame 10 is arranged on the top of the mobile vehicle 1, an adjusting bolt 102 is fixedly connected inside the guide frame 10, the adjusting bolt 102 passes through the mobile vehicle 1 and is detachably installed with the mobile vehicle 1 through a nut, and the guide frame 10 is provided with a guide frame 10. The outer side of 10 is rotatably connected to a guide wheel 101, and the traction rope 3 extends to the outer side of the guide wheel 101 and slidably cooperates with the guide wheel 101. When in use, the traction rope 3 is unwound by the winch 2, and the sinking column 5 fixedly connected to the bottom of the traction rope 3 is thrown into the water well. When the probe 6 installed at the bottom of the sinking column 5 contacts the bottom of the well, the probe 6 gives an alarm (the probe 6 can be a pressure sensor probe, such as GPD100. When the probe 6 touches the silt, it will be fed back to the controller for a reminder) and the well depth is measured by the unwound length of the traction rope 3.

[0038] In the specific operation process, the weight of the sinking column 5 is generally increased to make the probe 6 at the bottom of the sinking column 5 contact with the bottom of the well. However, in actual operation, a large amount of silt will accumulate at the bottom of the well. When the sinking column 5 falls, the probe 6 installed at its bottom will contact with the silt and cannot fall to the bottom of the well, resulting in the inability to accurately detect the depth of the well when monitoring the well depth. Therefore, in this scheme, a plurality of liquid inlet grooves 501 for water intake are opened on the outside of the sinking column 5, and sealing members are arranged on the outside of the plurality of liquid inlet grooves 501. A driving member is arranged inside the sinking column 5. When the sealing member contacts the sludge at the bottom of the well, the sealing member exposes the liquid inlet groove 501, so that well water is poured into the sinking column 5, and the cleaning member 7 is driven to rotate by pushing the driving member to clear the silt (in the embodiment of the present invention, the driving member can be driven by an existing electric rotating mechanism, and the motor drives the gear transmission to cooperate with the driving cleaning member to rotate) so that the probe 6 reaches the bottom of the well. Example

[0039] like Figure 4 As shown, the technical solution of the embodiment of the present invention compared with embodiment 1 is that the cleaning member 7 includes a stirring drill bit 701 rotatably connected to the bottom of the sinking column 5, a connecting ring 702 is fixedly connected to the top of the stirring drill bit 701, the connecting ring 702 passes through the bottom of the sinking column 5 and is rotatably connected to the sinking column 5, a spiral groove 703 is provided on the outer side of the connecting ring 702, and the bottom of the stirring drill bit 701 is configured to be in the shape of a spiral blade.

[0040] like Figures 5 to 7As shown, the sealing member includes a limit plate 803 fixedly connected to the outside of the sinking cylinder 5, a sealing plate 801 is slidably sleeved inside the limit plate 803, the sealing plate 801 is fitted to the outside of the sinking cylinder 5, a through groove 802 is opened on the outside of the sealing plate 801, the through groove 802 is parallel to the liquid inlet groove 501, and a contact plate 808 is hinged at the bottom end of the sealing plate 801;

[0041] The seal also includes a rack 804 fixedly connected to the outside of the sealing plate 801, a fixed seat 805 is provided on the outside of the limiting plate 803, the fixed seat 805 is fixedly connected to the outside of the sinking column 5, a first pawl 806 is sleeved on the outside of the fixed seat 805, a first torsion spring 807 is fixedly connected between the first pawl 806 and the fixed seat 805, one end of the first pawl 806 is in contact with the rack 804, in order to ensure the use of the first pawl 806, a protective cover can be provided on the outside of the fixed seat 805 to protect the first pawl 806.

[0042] An operation terminal 201 is installed on the outside of the mobile vehicle 1, and a controller is installed on the outside of the mobile vehicle 1. The controller is electrically connected to the winch 2, and the probe 6 is electrically connected to the controller. Displacement sensors are installed on the outside of multiple sealing plates 801 (the displacement sensor can adopt model LWX-0050, and the displacement of the object is determined by measuring the change of resistance value. The signal conversion circuit converts the analog signal output by the measuring element into a digital signal. This process includes steps such as amplification, filtering, sampling, and quantization. The data processing system is the last part of the displacement sensor, which includes a computer, etc. Its main function is to receive and process the digital signal output by the displacement sensor, convert it into a physical quantity, and perform operations such as display, storage, and analysis). The displacement sensor is electrically connected to the controller, and the controller is connected to the operation terminal 201 with a bidirectional wire.

[0043] like Figures 5 and 6 As shown, the driving member includes a push plate 704, a gravity column 502 is fixedly connected to the inside of the sinking column 5, the push plate 704 is sleeved on the outside of the gravity column 502 and is slidably connected to the gravity column 502, a plurality of telescopic rods 708 are fixedly connected between the push plate 704 and the bottom end of the inside of the sinking column 5, a plurality of extrusion plates 706 are fixedly connected to the bottom of the push plate 704, the plurality of extrusion plates 706 are arranged in a ring around the connecting ring 702, and a sliding block 707 is fixedly connected to the side of the plurality of extrusion plates 706 close to the connecting ring 702, a portion of the sliding block 707 extends to the inside of the spiral groove 703 opened on the outside of the connecting ring 702 and slidably cooperates with the connecting ring 702, and a plurality of reset springs 705 are fixedly connected between the push plate 704 and the bottom end of the inside of the sinking column 5.

[0044] During specific use, when the sinking column 5 descends inside the well, multiple sealing plates 801 are arranged on the outside of the sinking column 5, and the contact plate 808 hinged at the bottom of the sealing plate 801 contacts the mud at the bottom of the well before the probe 6 at the bottom of the sinking column 5. Since the contact plate 808 is arranged in a plate shape, when the contact plate 808 contacts the mud, the sealing plate 801 slides upward on the outside of the limit plate 803, and when the through groove 802 opened on the outside of the sealing plate 801 moves to the liquid inlet groove 501 opened on the outside of the sinking column 5, at this time, the through groove 802 overlaps with the fixed seat 805, and the external well water will quickly enter the inside of the sinking column 5. When the well water enters the inside of the sinking column 5, firstly, the weight of the sinking column 5 itself is further increased. , so that the sinking column 5 can further speed up and improve the effect of passing through the silt. Secondly, when the well water enters the sinking column 5, the pushing plate 704 arranged inside the sinking column 5 will drop due to the pressure of the water. When the pushing plate 704 drops, the sliding block 707 arranged on the side of the squeezing plate 706 close to the connecting ring 702 is pressed down, so that the sliding block 707 outside the squeezing plate 706 pushes the connecting ring 702 to rotate along the spiral groove 703. When the connecting ring 702 rotates, it drives the fixedly connected stirring drill bit 701 to rotate. With the rotation of the stirring drill bit 701, the silt at the bottom of the well is cleared, so that the probe 6 at the bottom of the sinking column 5 can touch the bottom of the well, thereby achieving the effect of accurately measuring the well depth.

[0045] In summary, the device cooperates with the sealing member through the liquid inlet groove 501 opened on the outside of the sinking column 5. When the sealing member contacts the mud at the bottom of the well, the liquid inlet groove 501 is opened, and the pushing plate 704 in the driving member is lowered by the weight of the water, pushing the connecting ring 702 to rotate, thereby rotating the stirring drill bit 701, pushing away the mud at the bottom of the sinking column 5, and then allowing the probe 6 to contact the bottom of the well, reducing the error caused by the mud and improving the accuracy of the detection.

[0046] Furthermore, since the situation at the bottom of the well is more complicated and the sludge is often not horizontal, in this solution, a rack 804 is arranged on the outside of the sealing plate 801. When the sealing plate 801 rises under contact with the sludge, the first torsion spring 807 pulls the first pawl 806, so that the first pawl 806 pushes the rack 804 to get stuck, so that the sealing plate 801 will not fall after rising, and a displacement sensor is installed on the sealing plate 801. The inclined surface of the sludge at the bottom of the well can be judged by the moving positions of the three sealing plates 801. When the position of the probe 6 at the bottom of the sinking column 5 is lower than the three sealing plates 801, it means that the probe 6 has been inserted deep into the sludge, and the depth of the probe 6 position is used for reading; when the position of any sealing plate 801 is lower than the probe 6, it means that the probe 6 has not reached the bottom of the well, and the probe 6 is blocked by the sludge. At this time, the position of the probe 6 is added to the sealing plate 801 minus the displacement distance, as shown in FIG. Fig.11As shown, the movement distance of the sealing plate 801 measured by the displacement sensor minus the length of the sealing plate 801 is the y value shown in the figure. At this time, the position of the probe plus the y value is the bottom depth of the well, which is a more accurate well depth than the probe 6.

[0047] At the same time, when the sinking column 5 is retracted by the pulling rope 3, since the sealing plate 801 will not descend, the water inside the sinking column 5 flows out through the overlapping part of the through groove 802 and the liquid inlet groove 501 to avoid manual dumping. As the well water is discharged, the reset spring 705 pushes the push plate 704 to rise. Figure 6 The inclination angle of the middle spiral groove 703 can be adjusted so that the sliding block 707 can drive the connecting ring 702 to rotate.

[0048] In summary, through the movement and coordination of the sealing plate 801, the complex mud conditions at the bottom of the well can be detected, thereby improving the accuracy of the detection.

[0049] When the water depth needs to be detected at the same time, this solution adopts Figures 8 to 9 As shown, a floating frame 4 is sleeved on the outside of the traction rope 3, and a locking piece for locking to the outside of the traction rope 3 is provided on the top of the floating frame 4;

[0050] The locking member includes a plurality of mounting seats 901 fixedly connected to the top of the floating frame 4, and the plurality of mounting seats 901 are distributed in a ring around the traction rope 3. A second pawl 902 is provided on the outer side of the plurality of mounting seats 901, and a second torsion spring 903 is provided between the second pawl 902 and the mounting seat 901. The two ends of the second torsion spring 903 are respectively fixedly connected to the mounting seat 901 and the inner wall of the second pawl 902. A plurality of slots 301 are provided on the outer side of the traction rope 3, and the second pawl 902 extends to the inside of the slot 301 and contacts with the traction rope 3.

[0051] In the specific operation process, when the floating frame 4 as a whole enters the bottom of the well together with the traction rope 3, since the floating frame 4 has buoyancy, when the traction rope 3 passes through the winch 2, through the buoyancy of the floating frame 4 itself, and the second ratchet 902 provided contacts with the card slot 301 opened outside the traction rope 3, the traction rope 3 falls without getting stuck, and as the sinking column 5 reaches the bottom of the well, the floating frame 4 floats on the water surface. When the traction rope 3 is reeled in, the second torsion spring 903 pulls the second ratchet 902, and then the second ratchet 902 is engaged with the card slot 301 opened on the outside of the traction rope 3, and the floating frame 4 will not fall on the outside of the traction rope 3. After reeling in, the water depth can be detected by observing the position of the traction rope 3 where the floating frame 4 is located, and a scale value is set on the outside of the floating frame 4 to improve accuracy, so that the water level depth can be detected while detecting the well depth.

[0052] Furthermore, the floating frame 4 is provided with a plurality of grooves, each of which is provided with a limiting rod 401, each of which is fixedly connected to the floating frame 4, and a floating block 402 is slidably connected to the outer side of the limiting rod 401, and the floating block 402 is arranged inside the groove and slidably cooperates with the floating frame 4.

[0053] like Figures 8 to 9 As shown, a plurality of floating blocks 402 are hingedly connected to a push rod 403 on one side away from the floating frame 4, one end of the push rod 403 is hingedly connected to a support rod 404, one end of the support rod 404 is hingedly connected to the floating frame 4, and both sides of the support rod 404 are fixedly connected to the floating frame 4 with elastic floating cloth 405

[0054] During specific use, when the floating frame 4 floats on the water surface, the buoyancy of the water pushes the floating block 402 to float up. At this time, the floating block 402 pushes the support rod 404 to unfold through the hinged pushing rod 403. When the support rod 404 is opened, the floating cloth 405 on both sides is unfolded, thereby increasing the buoyancy of the entire floating frame 4 and ensuring that the floating frame 4 can float on the water surface.

Claims

1. A portable automatic groundwater level and depth measuring instrument, comprising a mobile vehicle (1), Features: A winch (2) is installed on the top of the mobile vehicle (1), a traction rope (3) is installed and wound around the outside of the winch (2), the end of the traction rope (3) is fixedly connected to a sinking column (5), a probe (6) is installed at the bottom of the sinking column (5), and a cleaning piece (7) is rotatably connected to the bottom of the sinking column (5) and sleeved on the outside of the probe (6); A floating frame (4) is sleeved on the outside of the traction rope (3), and a locking piece for locking to the outside of the traction rope (3) is provided on the top of the floating frame (4); The outer side of the sinking column (5) is provided with a plurality of liquid inlet grooves (501) for water intake, and the outer sides of the plurality of liquid inlet grooves (501) are all provided with sealing members. The interior of the sinking column (5) is provided with a driving member. When the sealing member contacts the sludge at the bottom of the well, the sealing member exposes the liquid inlet groove (501), allowing the well water to flow into the interior of the sinking column (5). By pushing the driving member, the cleaning member (7) is driven to rotate to clear the sludge, so that the probe (6) reaches the bottom of the well. The cleaning member (7) comprises a stirring drill bit (701) rotatably connected to the bottom of the sinking cylinder (5); a connecting ring (702) is fixedly connected to the top of the stirring drill bit (701); the connecting ring (702) passes through the bottom of the sinking cylinder (5) and is rotatably connected to the sinking cylinder (5); a spiral groove (703) is formed on the outer side of the connecting ring (702); The sealing member comprises a limit plate (803) fixedly connected to the outside of the sinking cylinder (5); a sealing plate (801) is slidably sleeved inside the limit plate (803); the sealing plate (801) is in contact with the outside of the sinking cylinder (5); a through groove (802) is formed on the outside of the sealing plate (801); the through groove (802) is parallel to the liquid inlet groove (501); and a contact plate (808) is hingedly connected to the bottom end of the sealing plate (801); The sealing member further comprises a rack (804) fixedly connected to the outer side of the sealing plate (801); a fixing seat (805) is provided on the outer side of the limiting plate (803); the fixing seat (805) is fixedly connected to the outer side of the sinking cylinder (5); a first pawl (806) is sleeved on the outer side of the fixing seat (805); a first torsion spring (807) is fixedly connected between the first pawl (806) and the fixing seat (805); and one end of the first pawl (806) is in contact with the rack (804); The driving member includes a push plate (704) arranged on the inside of the sinking column (5), a gravity column (502) is fixedly connected thereto, the push plate (704) is sleeved on the outside of the gravity column (502) and is slidably connected to the gravity column (502), a plurality of telescopic rods (708) are fixedly connected between the push plate (704) and the bottom end of the inside of the sinking column (5), a plurality of extrusion plates (706) are fixedly connected to the bottom of the push plate (704), the plurality of extrusion plates (706) are arranged in a ring shape around the connecting ring (702), a sliding block (707) is fixedly connected to one side of the plurality of extrusion plates (706) close to the connecting ring (702), a portion of the sliding block (707) extends to the inside of a spiral groove (703) provided on the outside of the connecting ring (702) and is slidably matched with the connecting ring (702), and a plurality of return springs (705) are fixedly connected between the push plate (704) and the bottom end of the inside of the sinking column (5); An operation terminal (201) is installed on the outside of the mobile vehicle (1), a controller is installed on the outside of the mobile vehicle (1), the controller is electrically connected to the winch (2), the probe (6) is electrically connected to the controller, displacement sensors are installed on the outside of the plurality of sealing plates (801), the displacement sensors are electrically connected to the controller, and the controller is bidirectionally connected to the operation terminal (201) via electric wires.

2. The portable automatic measuring instrument for groundwater level and depth according to claim 1, Features: The locking member comprises a plurality of mounting seats (901) fixedly connected to the top of the floating frame (4), the plurality of mounting seats (901) being distributed in a ring around the traction rope (3), a second pawl (902) being arranged on the outside of the plurality of mounting seats (901), a second torsion spring (903) being arranged between the second pawl (902) and the mounting seat (901), two ends of the second torsion spring (903) being respectively fixedly connected to the mounting seat (901) and the inner wall of the second pawl (902), a plurality of slots (301) being arranged on the outside of the traction rope (3), the second pawl (902) extending into the inside of the slot (301) and in contact with the traction rope (3).

3. The portable automatic measuring instrument for groundwater level and well depth according to claim 1, Features: The floating frame (4) is provided with a plurality of grooves, each of which has a limiting rod (401) disposed therein. The limiting rods (401) are fixedly connected to the floating frame (4), and a floating block (402) is slidably connected to the outer side of the limiting rod (401). The floating block (402) is disposed inside the groove and slidably cooperates with the floating frame (4).

4. The portable automatic measuring instrument for groundwater level and well depth according to claim 3, Features: A plurality of the floating blocks (402) are hingedly connected to a push rod (403) on one side away from the floating frame (4); one end of the push rod (403) is hingedly connected to a support rod (404); one end of the support rod (404) is hingedly connected to the floating frame (4); and both sides of the support rod (404) are fixedly connected to the floating frame (4) with elastic floating cloth (405).

5. The portable automatic measuring instrument for groundwater level and depth according to claim 1, Features: A guide frame (10) is arranged on the top of the mobile vehicle (1), an adjusting bolt (102) is fixedly connected inside the guide frame (10), the adjusting bolt (102) passes through the mobile vehicle (1) and is detachably mounted on the mobile vehicle (1) via a nut, a guide wheel (101) is rotatably connected to the outside of the guide frame (10), and the traction rope (3) extends to the outside of the guide wheel (101) and is slidably engaged with the guide wheel (101).

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