A hydrological groundwater level exploration device

Abstract

The present invention provides a hydrological groundwater level exploration device, including a support, a rope pulley, and a pipe pulley assembly. The pipe pulley assembly is installed in the support pipe area, the drainage assembly is installed in the functional area, and the rope pulley assembly hoists the detector. The detector includes an outer tube and an inner tube. The outer circumferential surface of the outer tube body is provided with a plurality of outer ring grooves, the bottom of the groove is provided with holes, and a ring airbag is sleeved in the outer ring groove. An outer hole is provided between adjacent outer ring grooves. The inner tube body is sleeved in the outer tube body, and the telescopic assembly drives the inner tube body to move. The outer wall of the inner tube body is provided with a plurality of inner ring grooves, and an inner hole is provided between adjacent inner ring grooves. The inner hole sealing sleeve is provided with an inner diameter tube, and a breathing hole is provided at the bottom of the inner ring groove. An annular closed cavity is formed between the inner ring groove and the outer tube body, and a sealing ring is fixed in the annular closed cavity. The expansion and contraction control of the ring airbag in the above scheme can ensure the independent closure and accurate pumping and monitoring of water layers at each depth, and effectively reduce the deviation problem caused by the high water level in the observation well due to the formation pressure of the lower layer water.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrological detection, and in particular relates to a hydrological groundwater level exploration device. Background Art

[0002] Hydrological groundwater level exploration refers to the measurement and analysis of groundwater level, flow conditions and distribution characteristics through different technical means. Groundwater has different water layer structures in the natural environment, usually including the upper phreatic layer and the lower pressure layer. Accurate survey and analysis of groundwater level is of great significance to water resources management, environmental protection, groundwater pollution monitoring and geological exploration. Hydrological groundwater level exploration can provide necessary data support for the scientific utilization of water resources, groundwater management and protection.

[0003] At present, the detection of groundwater levels is usually carried out through observation wells, and the water level in the well is measured regularly using tools such as water level meters. Although this method can provide water level data for a certain well point, due to the stratification of groundwater, the water level data of a single well point cannot fully reflect the actual water level changes in different layers of groundwater. In some special exploration environments, conventional equipment cannot effectively obtain dynamic data of groundwater at different levels. In addition, most of the groundwater level detection devices in the prior art can only measure the water level in the observation well, and do not have the function of isolating and sampling different underground water layers, resulting in a lack of stratified analysis of different water layers in the exploration process.

[0004] Problem 1 of the prior art: It is impossible to effectively detect the stratified water level. Groundwater is usually divided into different water layers such as the phreatic layer and the pressure layer. The existing water level detection method mainly relies on observation wells to measure the water level, but these observation wells can only obtain the water level data in the well, and cannot effectively reflect the actual water level of groundwater layers at different depths, especially the detection effect of the water level difference between the pressure layer and the phreatic layer is poor. Problem 2: It is difficult to conduct effective stratified monitoring of water layers. Traditional groundwater exploration methods usually use simple water level gauges or pressure sensors for single-point measurement, lacking the means to accurately explore the groundwater layer in layers. Especially in complex groundwater environments, the existing equipment cannot isolate different water layers for sampling or independent detection, resulting in the data being unable to accurately reflect the dynamic changes and hydrogeological characteristics of each water layer. Problem 3: It is impossible to achieve stratified pumping and sampling. Most of the groundwater level detection devices in the prior art only have the function of water level measurement, and cannot achieve isolated sampling and pumping of different water layers. This limits the accuracy of multi-layer groundwater analysis, especially in applications where water samples from different layers need to be obtained, the prior art fails to meet the needs of stratified exploration. Problem 4: Insufficient stratified isolation methods. Although there are stratified isolation and well washing methods in the prior art, which can achieve stratified detection to a certain extent, this isolation method usually requires the equipment depth to be changed according to exploration needs, and due to the large isolation interval, it is often impossible to obtain effective stratified samples, affecting the accuracy of the exploration results.

[0005] The existing technology has significant deficiencies in stratified groundwater level survey. It is unable to effectively monitor, pump and sample different water layers independently, and usually can only obtain water level information of a single water layer, which is difficult to meet the needs of high-precision hydrological exploration. Therefore, it is particularly important to develop a groundwater exploration device that can realize stratified water level monitoring, stratified pumping and stratified sampling. Summary of the invention

[0006] In view of the problem in the prior art that when detecting groundwater levels, only measuring the water level through observation wells cannot effectively reflect the actual groundwater layer water level, resulting in monitoring data deviation, the purpose of the present invention is to provide a multi-level groundwater level exploration device, which can realize the collection of groundwater at different levels and accurate water level detection by accurately controlling the depth of the detector and the expansion and contraction of the ring airbag, thereby improving the accuracy and efficiency of hydrological exploration.

[0007] The solution of the present invention to solve its technical problem is: a hydrological groundwater level exploration device is adopted, including a bracket, a rope wheel assembly, a pipe wheel assembly, a drainage assembly and a detector. A stand is fixed on the middle part of the upper side of the base of the bracket, the stand includes a rope area, a pipe area and a functional area arranged in parallel, the pipe wheel assembly is installed in the pipe area, and the drainage assembly is installed in the functional area, and the rope wheel assembly is used to hoist and drive the detector to rise or fall; the detector includes an outer tube, an inner tube and a telescopic assembly, the outer tube includes an outer tube body and an annular airbag, the outer tube body is a cylindrical tubular structure, a plurality of annular outer ring grooves are arranged in parallel on the outer circumferential surface of the outer tube body, at least one through groove bottom hole is arranged at the bottom of each outer ring groove, an annular airbag is matched and set in the outer ring groove, the rear end of the annular airbag is connected to the inner cavity of the outer tube body through an air nozzle, and an outer hole penetrating the side wall of the outer tube body is arranged between adjacent outer ring grooves; the inner tube includes an inner tube body and a sealing ring, the inner tube body is a cylindrical tube The invention discloses a novel telescopic structure, wherein the inner tube body can be matched and sleeved in the outer tube body, and the telescopic assembly is used to drive the inner tube body to move axially in the outer tube body; a plurality of annular inner ring grooves are arranged on the outer side wall of the inner tube body, and an inner hole penetrating the side wall of the inner tube body is arranged between adjacent inner ring grooves, and an inner diameter tube is sealed and sleeved on the inner end of the inner hole, and each inner diameter tube is connected with an independent hose, and the upper end of each hose is fixedly connected with an outer guide tube, and a breathing hole is arranged at the bottom of each inner ring groove; an annular closed cavity is formed between the inner ring groove and the outer tube body, and a sealing ring is fixed in the annular closed cavity and on the inner wall of the outer ring groove, and the sealing ring isolates the annular closed cavity to form a P1 chamber located at the upper part and a P2 chamber located at the lower part, and the P1 chamber is connected with the annular airbag through the air nozzle, and the P2 chamber is connected with the tube cavity of the inner tube body through the breathing hole, and the tube wheel assembly includes a composite tube, and the composite tube includes a plurality of parallel outer guide tubes, and the drainage assembly drains the detector outward through each outer guide tube.

[0008] Preferably, a capacitive sensor is installed in the inner diameter tube, and a capacitive sensor signal is transmitted to the controller via a cable.

[0009] Preferably, the pulley assembly includes a motor, a pulley and a guide wheel. The motor and the pulley are fixed on one side of the bracket. The rotating shaft of the motor is transmission-connected with the rotating shaft of the pulley. The motor is controlled to rotate by a controller. A guide wheel shaft is horizontally installed in the middle of the rope area. A guide wheel is installed on the guide wheel shaft. The wire rope is wound around the pulley. The detector is suspended at the end of the wire rope led out from the groove of the guide wheel.

[0010] Preferably, the guide wheel shaft is a spline shaft, and the shaft hole of the guide wheel is a spline sleeve. After the guide wheel and the guide wheel shaft are assembled, the guide wheel can slide axially on the outside of the guide wheel shaft. The two ends of the guide wheel shaft are installed in the shaft seats on the two side walls of the rope area through bearings. A driving pulley is fixed to one end of the guide wheel shaft, and a driven pulley is fixed on the tube wheel shaft. A transmission belt is installed between the driving pulley and the driven pulley.

[0011] Preferably, the bracket includes a base with multiple walking wheels installed on both sides of the bottom, so that the bracket as a whole is easy to move, and supporting feet are respectively installed at the four top corners of the bottom of the base, each supporting foot includes a vertical screw and a support at the bottom, each screw vertically penetrates through the through hole installed at the top corner of the base, and nuts are fixed on the screw and at the upper and lower positions of the through hole, and lifting rings are respectively fixed at the four top corners of the top of the bracket.

[0012] Preferably, the telescopic assembly includes an electric pushing device, an outer tube top wall is fixed on the top of the outer tube body, an inner tube top wall is fixed on the top of the inner tube body, an electric pushing device is fixed in the middle of the inner end of the outer tube top wall, and the end of the telescopic rod of the electric pushing device is fixed to the inner tube top wall.

[0013] Preferably, the wheel assembly includes a wheel shaft, a wheel and a composite pipe, a pair of bearing seats are fixed in the middle of the top crossbeam of the pipe area, the wheel shaft is transversely installed in the bearing seats, the wheel shaft is a hollow tubular structure, and a plurality of inner lead pipes are fixed axially in parallel in the hollow inner cavity of the wheel shaft; the wheel is fixedly sleeved on the outer side of the wheel shaft, and the composite pipe is wound on the wheel, the composite pipe includes a plurality of parallel outer lead pipes and cables, and the plurality of outer lead pipes of the composite pipe are respectively connected to the corresponding inner lead pipes.

[0014] Preferably, a conductive ring and a rotary joint group are installed at one end of the wheel shaft. After the cable is led out from the center of the wheel shaft to one end, it is respectively connected to the control end and the signal input end of the controller through the conductive ring; the rotary joint group includes multiple independent rotary joints, and the outer end of each inner lead pipe is respectively connected to the corresponding rotary joint.

[0015] Preferably, the drainage assembly includes a vacuum pump installed on the upper side of the base, the negative pressure suction port of the vacuum pump is connected to the suction port of the buffer tank, the suction port of the buffer tank is connected to the top of the inner cavity of the water storage chamber, and each independent rotary joint of the rotary joint group is respectively connected to a corresponding guide tube; the water storage chamber is divided into a plurality of independent chambers by a partition, and the lower end of each guide tube is respectively connected to the corresponding independent chamber in the water storage chamber; a series of sampling ports are connected downwardly at the bottom of the water storage chamber, and a diaphragm one-way valve is hinged on one side of the inner edge of each sampling port, and each sampling port is respectively located at the bottom of each independent chamber.

[0016] Preferably, a collection component is also included, which includes a base plate, a lifting plate and a sampling tube. Guide holes are arranged around the base plate, guide pillars are fixed around the lifting plate, the guide pillars are matched and fitted into the corresponding guide holes, and a plurality of positioning seats are arranged in parallel at equal intervals on the top of the buffer tank. A sampling tube is mounted on each positioning seat. When the sampling tubes are pushed upward by the lifting plate at the same time, the sampling tubes can be inserted into the corresponding sampling ports, and the diaphragms in the sampling ports are pushed upward, so that the independent chambers of the water storage chamber are respectively connected to the corresponding sampling tubes.

[0017] Beneficial effects of the present invention: 1. Improve the accuracy of hydrological exploration: by controlling the telescopic assembly to drive the inner tube to move relative to the outer tube, and then controlling multiple ring airbags to form independent closed areas at different depths. The expansion and contraction control of the ring airbags can ensure the independent closure and precise pumping of water layers at each depth, effectively reduce the deviation problem caused by the high water level in the observation well due to the formation pressure of the lower water layer, improve the accuracy of the groundwater level and the ability to identify the layers, and obtain accurate groundwater level information. Avoid the traditional detection method to ignore the integrity of the water level, and realize the functions of segmented mobile isolation water level measurement, layered pumping, layered sampling and layered monitoring.

[0018] 2. Improve the accuracy of hydrogeological parameter characterization: Through fine stratified sampling and detection, the device can obtain groundwater samples and water level data at different depths, help to more accurately characterize hydrogeological parameters, and provide more accurate basic data for hydrogeological research.

[0019] 3. Efficient hydrogeological exploration: The automated telescopic adjustment and drainage system, combined with precise water level sensing and data collection, has greatly improved the efficiency and automation level of exploration work, reduced manual intervention, and improved the real-time and reliability of data.

[0020] 4. Extend the service life of the equipment: By controlling the negative and positive pressure states of the ring airbag, it avoids long-term exposure to adverse pressure conditions, extends the service life of the equipment, reduces the need for frequent maintenance, and enhances the durability and reusability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the use state of the exploration device of the present invention;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the other side of the exploration device;

[0023] Figure 3 is a front view of the exploration device;

[0024] Figure 4 yes Figure 3 Right view of;

[0025] Figure 5 It is a schematic diagram of the appearance structure of the detector;

[0026] Figure 6 This is a comparison of the detector's front view and cross-sectional view;

[0027] Figure 7 yes Figure 6 The enlarged structural diagram of the middle D part;

[0028] Figure 8 It is a schematic diagram of the detector outer tube structure;

[0029] Fig. 9 It is a schematic diagram of the inner tube structure of the detector;

[0030] Fig.10 It is a system relationship block diagram of the present invention.

[0031] Numbers in the figure: 1- bracket; 2- rope pulley assembly; 3- pipe wheel assembly; 4- drainage assembly; 5- collection assembly; 6- outer pipe; 7- inner pipe; 8- telescopic assembly; 11- base; 12- rope area; 13- pipe area; 14- functional area; 15- walking wheel; 16- foot; 17- lifting ring; 21- motor; 22- rope pulley; 23- guide wheel; 24- guide wheel shaft; 25- wire rope; 31- pipe wheel shaft; 32- pipe wheel; 33- composite pipe; 34- conductive ring; 35- rotary joint group; 41- vacuum pump; 42- buffer tank; 43- water storage chamber; 44- guide pipe; 45- emptying chamber; 46- discharge pipe; 47- electric control Cabinet; 51-bottom plate; 52-lifting plate; 53-guide column; 54-positioning seat; 55-sampling tube; 56-axle seat; 57-turning axis; 58-swinging axis; 59-push rod; 61-outer tube body; 62-outer ring groove; 63-groove bottom hole; 64-outer hole; 65-ring airbag; 66-conical head; 67-semicircular valve plug; 71-inner tube body; 72-inner ring groove; 73-inner hole; 74-inner diameter tube; 75-breathing hole; 76-hose; 77-external guide tube; 78-sealing ring; 79-thread; 81-outer tube top wall; 82-inner tube top wall; 83-isolation cover; 84-electric push device; 85-telescopic rod; 86-electric cable. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0033] Embodiment 1: The detection of groundwater level is usually carried out through observation wells, and the water level in the well is measured regularly using tools such as water level gauges. Usually, due to the formation pressure and the water pressure of the pressure layer, the water level in the observation well is higher than the water level of the actual groundwater layer. The real water level of the groundwater layer cannot be truly reflected by measuring the water level in the observation well alone. In order to obtain more accurate groundwater level data, the prior art usually requires well washing to remove sediments and mud in the well, and the use of professional water level measurement equipment and technology, such as self-recording water level meters, electric water level meters or groundwater multi-parameter automatic monitoring instruments. Due to the different water layers, the well washing process needs to be isolated and processed separately, and the workload of repeated work is large and cumbersome. Moreover, due to the large isolation interval, it is necessary to strictly control the time and speed of water level recovery after well washing, and predict the actual water level based on the relevant parameters of water level recovery. There is a problem of deviation in the prediction, which affects the accuracy of water level measurement. In addition, this well washing method also needs to consider the construction quality of the well, including the material and structure of the well wall pipe and the filter pipe, as well as the effect of well washing, which will affect the accuracy of observation well water level measurement. In view of the problem that in the prior art of groundwater level detection, only measuring the water level through observation wells cannot effectively reflect the actual groundwater layer water level, which leads to the problem of monitoring data deviation, this embodiment adopts a hydrological groundwater level exploration device, which is used to conduct detailed groundwater stratification exploration, including segmented mobile isolation water level measurement, stratified pumping, stratified sampling, and stratified monitoring, thereby improving the efficiency of hydrogeological exploration and achieving the purpose of finely characterizing hydrogeological parameters. The use of this device can not only accurately characterize the hierarchical structure of groundwater, but also improve the accuracy and reliability of hydrological exploration data, providing more accurate basic data for the scientific management of groundwater resources. Figure 1 , Figure 2 and Fig.10 As shown, the device mainly includes a bracket 1, a rope pulley assembly 2, a pipe pulley assembly 3, a drainage assembly 4 and a detector.

[0034] Specifically, Figure 1 and Figure 2As shown, the bracket 1 includes a base 11, a stand, a running wheel 15, a support leg 16 and a lifting ring 17. The base 11 is provided at the bottom of the bracket 1, and a stand is fixed in the middle of the upper side of the base 11. The stand includes a rope area 12, a pipe area 13 and a functional area 14 in parallel. Among them, the rope wheel assembly 2 is installed in the rope area 12, the pipe wheel assembly 3 is installed in the pipe area 13, and the drainage assembly 4 is installed in the functional area 14. A plurality of running wheels 15 are installed on both sides of the bottom of the base 11, so that the bracket 1 is easy to move as a whole. Support legs 16 are respectively installed at the four top corners of the bottom of the base 11, each support leg 16 includes a vertical screw and a support at the bottom, each screw is vertically penetrated and installed in the through hole of the top corner of the base 11, and a nut is fixed on the screw and located at the upper and lower positions of the through hole. Adjusting the nut can change the overall height of the support leg 16, thereby adapting to the ground height and keeping the base 11 fixed to the ground. Lifting rings 17 are fixed to the four top corners of the frame, so that the base 11 can be easily lifted and moved, for example, lifted and moved from the carriage to the ground by a lifting device.

[0035] like Figure 1-Figure 4 As shown, the rope pulley assembly 2 includes a motor 21, a rope pulley 22, a guide wheel 23, a guide wheel shaft 24 and a wire rope 25. The motor 21 and the rope pulley 22 are fixed on the upper side of the right end of the base 11, and the rotating shaft of the motor 21 is connected to the rotating shaft of the rope pulley 22 by transmission, and the motor 21 is controlled by the controller to rotate. A guide wheel shaft 24 is installed horizontally in the middle of the rope area 12, and a guide wheel 23 is installed on the guide wheel shaft 24, and the wire rope 25 is wound around the rope pulley 22. At the same time, the wire rope 25 is led out from the groove of the guide wheel 23, and a detector is hoisted at the end of the wire rope 25 after being led out.

[0036] Figure 1 It is shown in the figure that the guide wheel shaft 24 is a spline shaft, and the shaft hole of the guide wheel 23 is a spline sleeve. After the guide wheel 23 and the guide wheel shaft 24 are assembled, the guide wheel 23 can slide axially on the outside of the guide wheel shaft 24, and at the same time drive the guide wheel shaft 24 to rotate at the same speed. The two ends of the guide wheel shaft 24 are installed in the shaft seats on the two side walls of the rope area through bearings. Through this structure, the rotation of the guide wheel 23 can drive the rotation of the pipe wheel 32 (it can also be non-linked, and the pipe wheel 32 can be driven to rotate only by manpower). For example, a driving pulley is fixed at one end of the guide wheel shaft 24, and a driven pulley is fixed on the pipe wheel shaft 31, and a transmission belt is installed between the driving pulley and the driven pulley.

[0037] The detector includes an outer tube 6 , an inner tube 7 and a telescopic assembly 8 .

[0038] like Figure 5 and Figure 8As shown, the outer tube 6 includes an outer tube body 61, an outer ring groove 62, a groove bottom hole 63, an outer hole 64, an annular airbag 65 and a conical head 66. The outer tube body 61 is a cylindrical tubular structure, and a plurality of (n) annular outer ring grooves 62 are arranged side by side on the outer circumferential surface of the outer tube body 61. At least one through-groove bottom hole 63 is arranged at the bottom of each outer ring groove 62. An annular airbag 65 is matched with the outer ring groove 62, and the rear end of the annular airbag 65 is connected to the inner cavity of the outer tube body 61 through an air nozzle (the air nozzle is located in the groove bottom hole 63). An outer hole 64 that penetrates the side wall of the outer tube body 61 is arranged between adjacent outer ring grooves 62. It can be seen that the number of the outer holes is multiple (n-1).

[0039] Among them, a dovetail ring groove is arranged in the outer hole 64, and a semicircular valve plug 67 is installed in the dovetail ring groove. When working, the semicircular valve plug 67 is located at the bottom of the outer hole 64 (to form a closed P1), and when not working, the semicircular valve plug 67 is rotated to be located on the upper side (to open P1), so as to keep the annular airbag 65 connected to the outside atmosphere, and avoid the annular airbag 65 being in a state of compression, collision or suction depression for a long time. Since the annular airbag 65 is a rubber airbag, its reliability is a necessary condition for the effective operation of the detection device. If the annular airbag is often in a negative pressure contraction state, its durability will be affected. In order to avoid the annular airbag 65 being in a positive pressure or negative pressure state for a long time (prone to friction or long-term compression and being in an elastic tension state), which shortens its life, especially in the case of repeated use, the problem can be effectively solved by rotating the state of the semicircular valve plug 67.

[0040] like Figure 5 and Fig. 9 As shown, the inner tube 7 includes an inner tube body 71, an inner ring groove 72, an inner hole 73, an inner diameter tube 74, a breathing hole 75, a hose 76, an outer guide tube 77 and a sealing ring 78. The inner tube body 71 is a cylindrical tubular structure, and the inner tube body 71 can be an integrated structure, or a plurality of shorter inner tube bodies 71 can be spliced ​​together by threads 79 to form a long inner tube body 71.

[0041] The inner tube body 71 can be matched and sleeved in the outer tube body 61. After the outer tube 6 and the inner tube 7 are sleeved, as shown in FIG. Figure 7 and Figure 8 As shown. A plurality of (n) annular inner ring grooves 72 are provided on the outer wall of the inner tube body 71. At the same time, an inner hole 73 penetrating the side wall of the inner tube body 71 is provided between adjacent inner ring grooves 72. An inner diameter tube 74 is sealedly sleeved on the inner end of the inner hole 73, each inner diameter tube 74 is connected to an independent hose 76, and an outer guide tube 77 is fixedly connected to the upper end of each hose 76. The outer sides of the plurality of outer guide tubes are wrapped with outer sleeves to form a composite tube 33. Each outer guide tube 77 is sealed and fixed in the through hole at the top of the outer tube body 61. At the same time, a breathing hole 75 is provided at the bottom of each inner ring groove 72, and the inner end of the breathing hole 75 is located in the inner cavity of the inner tube body 71.

[0042] like Figure 6 As shown, the telescopic assembly 8 includes an outer tube top wall 81, an inner tube top wall 82, an isolation cover 83, an electric push device 84, a telescopic rod 85 and an electric cable 86. The outer tube top wall 81 (which can be provided with a breathing hole or an air pipe) is fixed on the top of the outer tube body 61, and the inner tube top wall 82 is fixed on the top of the inner tube body 71. The electric push device 84 is fixed in the middle of the inner end of the outer tube top wall 81, and the end of the telescopic rod 85 of the electric push device 84 is fixed to the inner tube top wall 82. An isolation cover 83 fixed to the inner wall of the outer tube body 61 can also be provided between the outer tube top wall 81 and the inner tube top wall 82, and the isolation cover 83 is used to fix the lower end of the electric push device 84. When the controller controls the electric push device 84 and then controls the telescopic rod 85 to telescopically move, it can drive the inner tube 7 to telescopically move axially in the outer tube 6 by a height difference of △h.

[0043] like Figure 2 and Figure 5 As shown, the wheel assembly 3 includes a wheel shaft 31, a wheel 32, a composite pipe 33, a conductive ring 34 and a rotary joint group 35. A pair of bearing seats are fixed in the middle of the top crossbeam of the pipe area 13, and the wheel shaft 31 is transversely installed in the bearing seats. The wheel shaft 31 is a hollow tubular structure, and a plurality of inner lead pipes (not shown in the figure) are fixed in parallel along the axial direction in the hollow inner cavity of the wheel shaft 31. The wheel 32 is fixedly sleeved on the outer side of the wheel shaft 31, and the composite pipe 33 is wound on the wheel 32. The composite pipe 33 includes a plurality of (n-1) parallel outer lead pipes 77 and a total cable 86. The cable 86 is located in the center, and the plurality of outer lead pipes 77 are located around the cable 86. As shown in FIG. Figure 1 and Figure 5 As shown, the outer end of the composite tube 33 is introduced into the interior of the detector, specifically, a plurality of outer lead tubes 77 of the composite tube 33 are connected to the corresponding inner lead tubes respectively.

[0044] A conductive ring 34 and a rotary joint group 35 are installed at one end of the tube wheel shaft 31. After the cable 86 is led out from the center of the tube wheel shaft 31 to one end, it is connected to the control end and the signal input end of the controller through the conductive ring. The rotary joint group includes multiple (n-1) independent rotary joints, and the outer end of each inner lead pipe is connected to a corresponding rotary joint.

[0045] like Figure 2 and Figure 3As shown, the drainage assembly 4 includes a vacuum pump 41, a buffer tank 42, a water storage chamber 43, a guide pipe 44, an emptying chamber 45, a discharge pipe 46 and an electric control cabinet 47. The buffer tank 42, the water storage chamber 43, the guide pipe 44 and the electric control cabinet 47 are fixedly installed in the cabinet of the functional area 14 (including the cabinet door), and the vacuum pump 41 is fixedly installed on the upper side of the left end of the base 11. The negative pressure suction port of the vacuum pump 41 is connected to the suction port of the buffer tank 42, and the suction port of the buffer tank 42 is connected to the top of the inner cavity of the water storage chamber 43. Each independent rotary joint of the rotary joint group 35 is connected to the corresponding guide pipe 44.

[0046] The water storage chamber 43 is divided into a plurality of independent chambers by partitions, and the lower end of each flow guide pipe 44 is connected to the corresponding independent chamber in the water storage chamber 43. An emptying chamber 45 whose height is lower than the inner cavity of the water storage chamber 43 is arranged at the bottom of the left side of the water storage chamber 43, and the left end of each independent chamber is connected to the emptying chamber 45, and a general discharge pipe 46 is connected to the bottom of the emptying chamber 45. A series of sampling ports are connected downwardly at the bottom of the right side of the water storage chamber 43, and a diaphragm (one-way valve) is hinged on one side of the inner edge of each sampling port, and each sampling port is located at the bottom of each independent chamber.

[0047] like Figure 2 and Figure 3 As shown, the collection assembly 5 includes a bottom plate 51, a lifting plate 52, a guide post 53, a positioning seat 54, a sampling tube 55, an axle seat 56, a flip shaft 57, a swing shaft 58 and a lever 59. Guide holes are arranged around the bottom plate 51, and guide posts 53 are fixed around the lifting plate 52. The guide posts 53 are matched and fitted into the corresponding guide holes. A plurality of positioning seats 54 are arranged in parallel at equal intervals on the top of the buffer tank 42, and a sampling tube 55 is sleeved on each positioning seat 54. When each sampling tube is pushed upward by the lifting plate 52 at the same time, each sampling tube can be inserted into the corresponding sampling port, and the diaphragm in each sampling port is pushed upward, so that each independent chamber of the water storage chamber 43 is connected with the corresponding sampling tube.

[0048] A pushing mechanism is provided to drive the lifting plate 52 to move upward and lock it. For example, an axle seat 56 is provided in the middle of the bottom plate 51, and a rotatable flip shaft 57 is installed transversely in the axle seat 56. A swing rod is vertically fixed to the inner end of the flip shaft 57, and a swing shaft 58 is transversely fixed to the end of the swing rod. The swing shaft 58 can support the lifting plate 52 to move upward when swinging. A lever 59 is fixed to the end of the flip shaft 57. The angle between the lever 59 and the swing rod is less than 90 degrees. Therefore, when the lever 59 swings to the right, the end of the lever 59 is supported on the surface of the base 11, so that the swing shaft 58 cannot continue to move downward, so that the lifting plate 52 is in a supported high position. When rotating to the left, the lever 59 can drive the swing shaft 58 to swing to the left. When the swing shaft 58 swings to the left, the lever 59 will not be supported on the surface of the base 11, so that the swing shaft 58 can fit with the bottom plate 51. At this time, the lifting plate 52 is in an unsupported low position.

[0049] Based on the above scheme, combined with Figure 7 As shown in (1), annular closed chambers P1 and P2 are formed between the inner annular groove 72 and the outer tube body 61. A sealing ring 78 is fixed in the annular closed chamber and located at the lower edge of the outer annular groove 62. The sealing ring 78 separates the annular closed chamber into a P1 chamber located at the upper part and a P2 chamber located at the lower part. In the initial state, the outer hole 64 and the inner hole 73 are not connected. At this time, the annular airbag 65 is in a state of negative pressure suction and shrinks in the outer hole 64, so as to facilitate the entire detector to move downward along the observation well. When the detector moves to the position, the controller controls the telescopic component 8 to move the inner tube 71 downward. During the downward movement of the inner tube 71, that is, from (1) to (2), the gas in the P1 space enters the annular airbag 65, causing the annular airbag 65 to expand. After the annular airbags 65 collide, multiple independent closed areas along different elevations are formed between the multiple annular airbags 65. The outer hole 64 in each closed area is connected to the inner hole 73 and is in an open state, so that the drainage component 4 on the well can suck the groundwater in each independent closed area, and can collect samples at different levels through the collection component 5. After the suction is completed by the drainage component 4, the detector needs to be left at one end of the position in the observation well for a static period. During the static period, the capacitive sensor installed in the inner diameter tube 74 can sense whether there is groundwater in the closed area, thereby judging the real groundwater level. The signal line of each capacitive sensor is gathered upward along the hose 76 to the interface of the cable 86. During this process, the space of P2 becomes smaller, and the air in P2 is discharged from the breathing hole 75 into the inner cavity of the inner tube 71. The combination of the capacitive sensor and the control system can accurately sense whether there is groundwater in the ring airbag, ensure the accuracy of water level monitoring, and avoid misdetection caused by unclear gas flow or water level changes.

[0050] When the detection is completed, the controller controls the telescopic assembly 8 to move the inner tube body 71 upward. During the upward movement of the inner tube body 71, that is, from (2) to (1), the P1 space gradually increases, so that the annular airbag 65 is attracted by the negative pressure. Finally, the annular airbag 65 is attracted and contracted to be located in the outer hole 64, and the P2 space increases. The air enters the P2 space from the inner cavity of the inner tube body 71 along the breathing hole 75. After the movement, the outer hole 64 is misaligned with the inner hole 73, that is, the outer hole 64 is ensured to be closed. When each annular airbag 65 is in the contracted state, the pulley assembly 2 is used to change the depth of the detector, that is, the detector is moved downward by one body position as a whole, and the above process from (1) to (2) is repeated until the entire observation well is finally detected.

[0051] Based on the above scheme, the steps for using the hydrological groundwater level exploration device are as follows:

[0052] S1. Device preparation and installation: The device is hoisted from the transport carriage to the groundwater detection area through a hoist and placed at the observation wellhead. According to the wellhead height, adjust the support legs 16 of the bracket to ensure that the base 11 is firmly fixed on the ground. Through the design of adjustable legs, the device can adapt to wellheads of different heights, ensure the stability of the equipment, and provide a solid foundation for subsequent operations.

[0053] S2. Detector installation and preliminary debugging: Start the motor 21 to rotate the rope wheel 22, driving the detector to sink to the initial target depth. At this time, the ring airbag 65 in the detector is in a negative pressure state, and the ring airbag shrinks to ensure that the detector can sink smoothly.

[0054] S3. Detector positioning and layer monitoring preparation: After reaching the target depth, the controller starts the telescopic assembly 8 to move the inner tube 7 axially along the outer tube 6 to change the position of the detector. At this time, the outer ring groove 62 docks with the inner hole 73, and the ring airbag 65 begins to expand to form an independent closed area. By precisely controlling the relative positions of the inner and outer tubes, the ring airbag expands to form multiple independent closed areas. These areas correspond to different water layers, which can effectively isolate and measure groundwater levels at different depths.

[0055] S4. Water level detection and data collection: After the detector is positioned, the drainage component 4 is controlled to start the vacuum pump 41 to extract groundwater from each independent closed area, or to collect groundwater samples from each water layer through the collection component 5 at the same time. The device is left to stand for a period of time, and the capacitive sensor is used to detect whether there is groundwater in the closed area, so as to determine the groundwater level.

[0056] S5. Layer-by-layer water level measurement and sampling: According to the water level changes in each closed area, the controller instructs the telescopic component 8 to adjust the inner tube position again, so that the detector moves downward or upward layer by layer. After each movement, the process of ring airbag expansion, water pumping and water level detection is repeated, and water level data and water samples at different levels are measured and collected section by section. The device can measure the water level in layers in a refined manner, pump water and sample in sections, ensuring that the groundwater level data and samples of each water layer are not affected by each other, so as to achieve the effect of refined hydrogeological exploration.

[0057] S6. Complete the test and equipment recovery: After all the water level data collection and testing are completed, the controller instructs the telescopic assembly 8 to move the inner tube 7 upward, the annular airbag 65 will be sucked and recovered by the negative pressure, and the outer hole 64 and the inner hole 73 are misaligned to ensure that the detector is not disturbed by the outside world. The controller instructs the rope wheel assembly 2 to move the detector upward as a whole and gradually retract the detector. Adjust the semicircular valve plug 67 to the upper side to keep the annular airbag 65 connected to the outside atmosphere to prevent the annular airbag 65 from being in a state of compression, collision or suction depression for a long time, which will affect its durability.

[0058] S7. Data collation and analysis: The collected groundwater level data and water sample information are transmitted to the control system, and the water level changes, flow trends and groundwater characteristics of different water layers are analyzed through data processing software. Through efficient data processing and analysis, accurate water level curves and groundwater characteristics reports can be generated to help hydrogeologists gain a deeper understanding of groundwater distribution and its dynamic changes.

[0059] The device can realize accurate layered monitoring, pumping, sampling and water level detection of groundwater, effectively improve the efficiency and accuracy of hydrological exploration, reduce manual intervention, and enhance the accuracy and reliability of data. Through segmented movement, layered sampling and layered monitoring, the device realizes comprehensive and detailed exploration of groundwater, providing high-quality data support for hydrogeological research.

[0060] The above specific embodiments of the present invention are only used for illustrative explanation or explanation of the principle of the present invention, and do not constitute a limitation of the present invention. Therefore, any modification, equivalent substitution, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In the description of this application, it should be noted that, unless otherwise specified and limited, "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may change.

Claims

1. A hydrological groundwater level exploration device, comprising a support (1), a rope pulley assembly (2), a pipe pulley assembly (3), a drainage assembly (4) and a detector, characterized in that: A stand is fixed to the middle of the upper side of the base (11) of the bracket (1), the stand comprising a rope area (12), a tube area (13) and a functional area (14) arranged in parallel, a rope pulley assembly (2) is mounted on the rope area (12), a tube pulley assembly (3) is mounted on the tube area (13), and a drainage assembly (4) is mounted on the functional area (14), the rope pulley assembly (2) is used to lift and drive the detector to rise or fall; the detector comprises an outer tube (6), an inner tube (7) and a telescopic assembly (8), the outer tube (6) comprises an outer tube body (61) and an annular airbag (65), the outer tube body (61) is a cylindrical tubular structure, a plurality of annular outer ring grooves (62) are arranged in parallel on the outer circumferential surface of the outer tube body (61), and at least one penetrating outer ring groove (65) is arranged at the bottom of each outer ring groove (62). The inner tube (7) comprises an inner tube body (71) and a sealing ring (78). The inner tube body (71) is a cylindrical tubular structure. The inner tube body (71) can be matched and sleeved in the outer tube body (61). The telescopic assembly (8) is used to drive the inner tube body (71) to move axially in the outer tube body (61). A plurality of annular inner ring grooves (72) are provided on the outer side wall of the inner tube body (71). An inner hole (64) penetrating the side wall of the inner tube body (71) is provided between adjacent outer ring grooves (72). (73), an inner diameter tube (74) is sealedly sleeved on the inner end of the inner hole (73), each inner diameter tube (74) is connected to an independent hose (76), the upper end of each hose (76) is fixedly connected to an outer guide tube (77), and a breathing hole (75) is respectively provided at the bottom of each inner ring groove (72); an annular closed cavity is formed between the inner ring groove (72) and the outer tube body (61), a sealing ring (78) is fixed in the annular closed cavity and located on the inner wall of the outer ring groove (62), and the sealing ring (78) isolates the annular closed cavity to form a P1 chamber located at the upper part and a P2 chamber located at the lower part, the P1 chamber is connected to the annular airbag (65) through the air nozzle, and the P2 chamber is connected to the tube cavity of the inner tube body (71) through the breathing hole (75), and the tube wheel assembly (3) includes a composite The composite tube (33) comprises a plurality of parallel outer guide tubes (77), the drainage component (4) guides the detector outward through each outer guide tube (77); when the controller controls the telescopic component (8) to move so that the inner tube body (71) moves downward, the gas in the P1 space enters the annular airbag (65), causing the annular airbag (65) to expand, thereby forming a plurality of independent closed areas along different elevations; when the controller controls the telescopic component (8) to move so that the inner tube body (71) moves upward, the P1 space gradually becomes larger, and the annular airbag (65) is attracted by the negative pressure and contracts to be located in the outer hole (64), thereby facilitating the placement, movement and removal of the detector; a capacitive sensor is installed in the inner diameter tube (74), and the capacitive sensor signal is transmitted to the controller via a cable.

2. The hydrological groundwater level exploration device according to claim 1, characterized in that: The rope pulley assembly (2) comprises a motor (21), a rope pulley (22) and a guide wheel (23). The motor (21) and the rope pulley (22) are fixed on one side of a bracket. The rotating shaft of the motor (21) is drivingly connected to the rotating shaft of the rope pulley (22). The motor (21) is controlled by a controller to rotate. A guide wheel shaft (24) is transversely installed in the middle of the rope area (12). The guide wheel (23) is installed on the guide wheel shaft (24). A steel wire rope (25) is wound around the rope pulley (22). The detector is hoisted at the end of the steel wire rope (25) drawn out from the groove of the guide wheel (23).

3. The hydrological groundwater level exploration device according to claim 2, characterized in that: The guide wheel shaft (24) is a spline shaft, and the shaft hole of the guide wheel (23) is a spline sleeve. After the guide wheel (23) and the guide wheel shaft (24) are assembled, the guide wheel (23) can slide axially outside the guide wheel shaft (24). Both ends of the guide wheel shaft (24) are installed in shaft seats on both side walls of the rope area through bearings. A driving pulley is fixed to one end of the guide wheel shaft (24), and a driven pulley is fixed on the tube wheel shaft (31). A transmission belt is mounted between the driving pulley and the driven pulley.

4. The hydrological groundwater level exploration device according to claim 1, characterized in that: The support (1) comprises a base (11), a plurality of walking wheels (15) are installed on both sides of the bottom of the base (11), so that the support (1) as a whole is easy to move, and legs (16) are respectively installed at the four top corners of the bottom of the base (11), each leg (16) comprises a vertical screw rod and a support at the bottom, each screw rod is vertically penetrated and installed in a through hole at the top corner of the base (11), nuts are respectively fixed on the screw rod and at the upper and lower positions of the through hole, and lifting rings (17) are respectively fixed at the four top corners of the top of the stand.

5. The hydrological groundwater level exploration device according to claim 1, characterized in that: The telescopic assembly (8) comprises an electric pushing device (84), an outer tube top wall (81) is fixed on the top of the outer tube body (61), an inner tube top wall (82) is fixed on the top of the inner tube body (71), the electric pushing device (84) is fixed at the middle of the inner end of the outer tube top wall (81), and the end of the telescopic rod (85) of the electric pushing device (84) is fixed to the inner tube top wall (82).

6. The hydrological groundwater level exploration device according to claim 1, characterized in that: The wheel assembly (3) comprises a wheel shaft (31), a wheel (32) and a composite pipe (33). A pair of bearing seats are fixed in the middle of the top crossbeam of the pipe area (13). The wheel shaft (31) is transversely mounted in the bearing seats. The wheel shaft (31) is a hollow tubular structure, and a plurality of inner lead pipes are fixed in parallel along the axial direction in the hollow inner cavity of the wheel shaft (31). The wheel (32) is fixedly sleeved on the outer side of the wheel shaft (31), and the composite pipe (33) is wound around the wheel (32). The composite pipe (33) comprises a plurality of parallel outer lead pipes (77) and a cable (86). The plurality of outer lead pipes (77) of the composite pipe (33) are respectively connected to corresponding inner lead pipes.

7. The hydrological groundwater level exploration device according to claim 6, characterized in that: A conductive ring (34) and a rotary joint group (35) are installed at one end of the tube wheel shaft (31); after the cable (86) is led out from the center of the tube wheel shaft (31) to one end, it is respectively connected to the control end and the signal input end of the controller through the conductive ring; the rotary joint group includes a plurality of independent rotary joints, and the outer end of each inner lead pipe is respectively connected to a corresponding rotary joint.

8. The hydrological groundwater level exploration device according to claim 7, characterized in that: The drainage assembly (4) comprises a vacuum pump (41) mounted on the upper side of the base (11); the negative pressure suction port of the vacuum pump (41) is connected to the suction port of the buffer tank (42); the suction port of the buffer tank (42) is connected to the top of the inner cavity of the water storage chamber (43); each independent rotary joint of the rotary joint group (35) is respectively connected to a corresponding guide pipe (44); the water storage chamber (43) is divided into a plurality of independent chambers by a partition; the lower end of each guide pipe (44) is respectively connected to a corresponding independent chamber in the water storage chamber (43); a series of sampling ports are connected downwardly at the bottom of the water storage chamber (43); a diaphragm one-way valve is hinged on one side of the inner edge of each sampling port; each sampling port is respectively located at the bottom of each independent chamber.

9. The hydrological groundwater level exploration device according to claim 8, characterized in that: It also includes a collection assembly (5), which includes a bottom plate (51), a lifting plate (52) and a sampling tube (55). Guide holes are arranged around the bottom plate (51), and guide pillars (53) are fixed around the lifting plate (52). The guide pillars (53) are matched and fitted into corresponding guide holes. A plurality of positioning seats (54) are arranged in parallel at equal intervals on the top of the buffer tank (42). A sampling tube (55) is mounted on each positioning seat (54). When the sampling tubes are simultaneously pushed upward by the lifting plate (52), the sampling tubes can be inserted into corresponding sampling ports, and the membranes in the sampling ports are pushed upward, so that the independent chambers of the water storage chamber (43) are respectively connected to the corresponding sampling tubes.

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