104 results about "Groundwater sampling" patented technology

The invention relates to the technical field of underground water sampling, and discloses an underground water sampling device which comprises a frame body and further comprises a sampling cylinder, a sampling winding drum and a cleaning winding drum, the sampling winding drum and the cleaning winding drum are rotationally connected to the frame body, a sampling cavity is formed in the sampling winding drum, a sampling hose is communicated to the sampling cavity, and a first detection sensor group is mounted on the sampling cylinder; a lower valve cylinder driven by a motor a is rotatably mounted on the inner wall of the sampling cylinder, a lower valve hole is formed in the lower valve cylinder, the sampling end of the sampling hose and the lower valve hole are both communicated with an inner cavity of the lower valve cylinder, an upper branch pipe adaptively communicated with the lower valve hole is arranged on the side surface of the sampling cylinder, and a rotary sampling head is arranged at the lower part of the sampling cylinder; and a rotary flow guide component is arranged between the rotary sampling head and the upper branch pipe. By integrating the high-pressure air pump, the cleaning pump and the sewage suction pump and combining intelligent switching control of the three-way connector and the electromagnetic valve, automatic backwashing of the sampling hose, the rotary sampling head and the flow channel is achieved.

The invention discloses an intelligent depth-adjustable sampling device for underground water pollution detection, and relates to the technical field of underground water sampling, the intelligent depth-adjustable sampling device comprises a sampling equipment main body and a controller, the bottom of the sampling equipment main body is provided with a driving device, and a supporting table is mounted above the sampling equipment main body; the device comprises a supporting table, a machine shell and a winding assembly are installed on the supporting table, a lifting device is installed at the output end of the supporting table, a drilling assembly and a sampling assembly are installed on the lifting device, a cooling assembly is arranged on the side face of the drilling assembly, and the winding assembly is matched with the sampling assembly. According to the invention, integrated intelligent operation of drilling, depth adjustment, sampling and preliminary detection is realized, and the efficiency and accuracy of underground water pollution detection sampling are significantly improved.

The utility model discloses an underground water sampling device for engineering geological survey, which comprises a main body assembly, a control box, a positioning plate, ground nails, a support frame and a driving box, the support frame is arranged in the control box, and the driving box is fixed at the top of the support frame; the water taking assembly comprises a moving part, a winding part and a sample separating part, the moving part is arranged in the control box, the winding part is arranged in the driving box, and the sample separating part is arranged below the driving box. The underground water sampling device has the beneficial effects that through the matched use of the moving part and the winding part, a worker can conveniently operate and sample underground water at a position far away from a water source sampling point, the worker can be prevented from falling into water accidentally, the safety during water source sampling is improved, and through the arrangement of the sample separating part, the worker can conveniently place the sampler into the underground water, so that the sampling efficiency is improved. Five underground water sources with different depths are sampled at a time, and meanwhile, filter holes are formed in the top of the sample separating barrel, so that weeds or large-particle impurities can be prevented from entering the sample separating barrel.

The invention relates to an underground water sampling device for geological exploration, and belongs to the technical field of underground water sampling devices. The device comprises an unwinding mechanism and a sampling mechanism, the unwinding mechanism comprises an unwinding drum, a scale rope is wound on the unwinding drum, the sampling mechanism is connected to the free end of the scale rope and comprises a plurality of sampling barrels, partition plates are installed in the sampling barrels, inner cavities of the sampling barrels are divided into top cavities and bottom cavities by the partition plates, and water inlets communicated with the top cavities are formed in the sampling barrels; a first plugging assembly is movably installed at the water inlet, a piston plate is slidably installed in the bottom cavity and divides the bottom cavity into a gas cavity and a liquid cavity which are sequentially arranged from top to bottom, a water inlet hole communicated with the liquid cavity is formed in the sampling barrel, a gas outlet hole communicated with the gas cavity is further formed in the sampling barrel, and a one-way valve set is installed at the gas outlet hole. The water inlet is further provided with a second plugging assembly. According to the method, the sample difference can be improved, so that the obtained sample is more representative.

This invention relates to the field of groundwater sampling devices, and more particularly to a sampling device for detecting groundwater pollutants. The technical solution includes: a rope and multiple samplers detachably mounted on the rope. Each sampler has a flow hole allowing water to pass through it. A contraction structure includes a first pull rope and a first control rope connected to the first pull rope. A sealing structure is installed inside the upper and lower ends of each sampler. The sealing structure includes a flexible, annular membrane, on which a second, annular pull rope is fitted. This invention reduces mixing of water layers at different depths, prevents disruption of the natural stratification of the water body, and allows for large-scale sampling of the water body in a single operation. This prevents the problem of small water samples affecting the accuracy, representativeness, and reliability of the analysis results, and avoids the problem of repeated water sampling exacerbating water body interference.

This invention relates to the field of hydrogeology, specifically to a groundwater sampling device for hydrogeology. The device comprises multiple vertically arranged splicing rods, each with a threaded hole at its top and a screw head fixedly connected to its bottom. The screw head engages with the adjacent threaded hole. A circular hole is formed on the top surface of a sleeve plate, which slidably engages with the outer wall of the splicing rod. A motor box is located on one side of the sleeve plate. In this invention, the splicing rods are sequentially spliced ​​and inserted into a well. A welded metal bracket secures the splicing rods to the wellhead. The sleeve plate is lowered to the aquifer using an automatic winch. An electric push rod moves the sampling mechanism, allowing it to drill into the aquifer through the well pipe's filter holes. The sampling mechanism then samples the water flow within the aquifer, improving the accuracy of sampling a single aquifer. After sampling, a filling mechanism can backfill the aquifer with soil, facilitating sampling operations for users.

This invention discloses a micro-well-washing groundwater sampling system and method, including a sampling point, which is a section of water inside the well pipe; it also includes pumping equipment and sensor equipment, both located at the sampling point; it further includes two groundwater detectors and a detection host, with the two groundwater detectors located above and below the sampling point, respectively. The two groundwater detectors are used to monitor the water flow between the upper and lower water bodies and the sampling point; the detection host is used to receive the real-time water flow data monitored by the groundwater detectors and adjust the pumping speed of the pumping equipment in real time according to the water flow data and the pumping strategy; the detection host is used to receive the water quality indicators collected in real time by the sensor equipment; the detection host judges whether the water at the sampling point meets the preset sampling conditions at preset time intervals, and collects water samples if the preset conditions are met.

The utility model relates to the technical field of underground water sampling equipment, one embodiment of the utility model provides a layered water stopping device for hydrogeological drilling, the layered water stopping device for hydrogeological drilling comprises a box body, and a partition plate is fixedly connected to the middle of an inner cavity of the box body. An operator pumps underground water in a cavity in the top end of a partition plate through a connecting pipe, and when a first motor is started, a rotating shaft and a hollow block rotate, so that the inner surface of the hollow block extrudes and pushes the outer surface of a circular shaft, and then the circular shaft drives a connecting block to integrally move leftwards; according to the technical scheme, the bottom end of the moving block moves to the top end of the first water pipe, then shielding of the second water pipe is relieved, the first water pipe is shielded, and an operator can extract underground water in a cavity in the bottom end of the partition plate. The technical problem that underground water of different depths cannot be pumped at a time in the prior art is solved.

The utility model discloses an underground water sampler and a multi-depth underground water sampling system, the sampler comprises a hollow sampling container and covers sealed at the openings at the two ends of the sampling container, a plurality of axial through holes are formed on the annular wall of the sampling container, and the axial through holes extend out of the two ends of the sampling container; wherein one cover is provided with a suction pipe communicated with the inner cavity of the sampling container, and the annular wall of the sampling container is provided with a plurality of radial holes. The system comprises at least ten sampling hoses, a plurality of long pipes and a sampler, one end of each long pipe is detachably and fixedly connected with one end of the sampler, and the other end of each long pipe is detachably and fixedly connected with one end of another sampler; and each sampling hose sequentially penetrates through the axial through hole in each sampler from top to bottom and is connected with the suction pipe of the sampler with the corresponding depth. According to the utility model, more than ten sampling hoses can be connected in series, water samples in sampling containers with different depths can be extracted, the structure is simple, the assembly is convenient, and the manufacturing cost is low.

The application discloses an automatic control system for groundwater sampling and microbial sample pretreatment, and belongs to the technical field of groundwater environment monitoring. The system comprises a sample collection unit, a microbial pretreatment unit, a sample detection unit, a sample storage unit, a wastewater storage unit and an intelligent control system. The sample collection unit comprises a sampling head, a sampling tube, an air bag pump and a first flow sensor. The microbial pretreatment unit comprises a multi-stage filtration system and a filter membrane storage system. The intelligent control system is used for receiving flow signals and feeding back to adjust the opening and closing of each valve and control pump water parameters. The application provides an automatic control system for groundwater sampling and microbial sample pretreatment based on hydrogeology and monitoring well parameters, Internet of Things sensing technology, self-control valve groups and model algorithm coupling. The system can realize adaptive control and optimization of sampling and pretreatment parameters through multi-source data fusion.

The invention discloses a sampling device for a hydraulic environment geological environment, and belongs to the technical field of geological environment sampling. The sampling device for the hydraulic ring geological environment comprises a traction rope and a sampling barrel and further comprises a limiting assembly arranged between the traction rope and the sampling barrel, the limiting assembly comprises a supporting disc, the supporting disc is arranged between the traction rope and the sampling barrel, the sampling barrel is connected to the lower portion of the supporting disc through a supporting pipe, and a sliding rod is horizontally inserted in the peripheral side of the supporting disc in a sliding mode; the end part of the sliding rod is fixedly connected with a rolling piece, the rolling piece comprises a roller, the top of the supporting disc is provided with an inserting piece, the inserting piece comprises a horizontally arranged inserting rod, and when the sampling barrel penetrates through the sampling well and is placed in underground water to be sampled, the inserting rod is inserted into the side wall of the sampling well and is in temporary limiting connection with the side wall of the sampling well; according to the underground water sampling device, by arranging the limiting assembly, when underground water sampling is conducted, the lowered sampling barrel is limited, and shaking of the sampling barrel is prevented.

The application discloses a kind of underground water monitoring automatic sampling device, belongs to underground water sampling technical field.A kind of underground water monitoring automatic sampling device, including portable power supply, control module, submersible pump, receiving tank and monitoring device;Control module is electrically connected with submersible pump, portable power supply and monitoring device by cable respectively;Receiving tank is communicated with submersible pump by water pipe, for collecting and storing water sample, monitoring device is used to monitor the parameter of underground water sample, control module is used to control the start-stop of submersible pump and sampling time and receive the underground water sample parameter monitored by monitoring device;Submersible pump includes pump body, waterproof motor and impurity removal device;Waterproof motor is detachably connected with the lower part of pump body, and the pump body is driven by waterproof motor to run and extract water sample;Impurity removal device is arranged between waterproof motor and pump body, can filter the impurities in underground water entering pump body simultaneously during sampling process, prevent dirt adhesion, prolong the service life of device.

This invention relates to the field of sampling device technology and discloses a stratified groundwater sampling device, including a sampling tube, and further comprising: a cylindrical component, a sliding component, multiple baffle plates, and multiple sliding rods. The cylindrical component is fixedly connected to the middle of the sampling tube with their center lines coinciding. The sliding component is slidably connected inside the cylindrical component, and its upper end is pulled by a pulling component and uniformly fitted and fixed to the outside of the cylindrical component. Each baffle plate divides the cavity between the cylindrical component and the sampling tube into multiple water storage cavities of the same size. Multiple sliding holes are formed through the middle of the baffle plate along its circumference. The bottom of each sliding hole has a water filling hole communicating with the water storage cavity. Multiple sliding rods are slidably connected to each sliding hole in a corresponding manner. Sealing plugs are fitted and fixed to the portions of the sliding rods near the sampling tube and the cylindrical component. One end of each sliding rod extends into the cylindrical component, and a reset component is connected to the sliding rod within the sliding hole. This invention enables continuous underwater stratified sampling of groundwater at different depths.

This utility model discloses a fixed-point water sampling device for groundwater environmental surveys, belonging to the field of fixed-point water sampling technology. The upper end of the drill pipe is equipped with an assembly head, through which an assembled water sampling pipe is connected, increasing the length of the drill pipe and the drilling depth. The side wall of the assembled water sampling pipe has a handle, facilitating user operation of the assembled water sampling pipe and drill pipe for water sampling. The assembled water sampling pipe is connected to a connecting pipe via a connector and a connecting sleeve. A docking seat is installed at the upper end of the connecting pipe, and a filter seat is installed at the upper end of the docking seat via fasteners. The design of the assembled water sampling pipe and drill pipe facilitates extending the drill pipe and increasing the drilling depth to meet the needs of groundwater sampling at different depths. The design improves water sampling efficiency and the flexibility and practicality of the device. The elliptical design of the squeeze ball facilitates operation; users can easily draw water samples into the sampling bottle by pressing. This design simplifies the water sampling process and improves the user experience.

The present application relates to the technical field of groundwater collection, and discloses a pollution-preventing layered groundwater sampling device, which comprises a sampling pump and a layered pipe, wherein the layered pipe comprises a pipe end one at the head, a pipe end two at the tail, and a plurality of pipe sections in the middle part; the pipe end one, the pipe end two and the pipe section end part are fixed with sealing covers; and the sealing covers and the adjacent sealing covers are provided with connecting parts; the pipe section middle part is provided with a sectioning opening; the pipe section is divided into an upper chamber and a lower chamber through the sectioning opening; the upper chamber and the lower chamber are provided with pressure collecting parts which are driven to move under the action of air pressure; and the pressure collecting parts move into the lower chamber to make the lower chamber negative pressure to let water in. When collecting water samples, the independent chamber structure makes the water samples in each layer physically isolated, the water samples in the relative depth are more accurately extracted, and various water samples in different depths are collected at one time through the action of the air pressure of the sampling pump, so that the water body is not disturbed too much.

The utility model relates to environmental monitoring equipment technical field especially relates to a groundwater sampling device for environmental monitoring. Including bottom disc, bottom disc is equipped with one, and the middle hole is set up on the bottom disc, to make sampling pump and water suction pipe through the middle hole and extend into the well, rotationally set up the turntable on the bottom disc, four arc grooves are set up on the turntable along the circumference, the moving rod that is consistent with the number and the layout of arc groove is also slidably provided on the bottom disc along the circumference, and the end of moving rod is provided with the embedded end that is embedded in adjacent arc groove. The utility model discloses through setting up moving rod and the structure of the stopper, can effectively limit the water suction pipe and sampling pump in the shaking of the falling process, avoid its and the well wall and lead to the soil falling off to collide or rub, thereby significantly reduce the risk of water sample being contaminated, help to keep the stability of sampling equipment operation, ensure the accuracy of sampling position, improve sampling accuracy and reliability.

The invention relates to the technical field of underground water sampling, in particular to an underground water quality monitoring and sampling device which comprises a sampling box, a buoyancy component is fixedly mounted on the lower side of the sampling box, a sampling shell is fixedly mounted on the lower side of the buoyancy component, and a sampling component is rotatably mounted on the upper side of the sampling shell. An anti-turbulent flow assembly is fixedly mounted on the lower side of the sampling shell; the worm drives the worm gear to rotate, the worm gear drives the driving rod to rotate, the driving rod drives the driving gear to rotate, the driving gear drives one of the connecting gears to rotate, and therefore the multiple sets of connecting gears are driven to perform linkage movement; the six anti-spoiler plates are driven to move and are parallel to one another, large-particle sediments which do not participate in detection at the bottom of the sampling well are separated, then sampling water is sucked into the sampling well through the one-way suction nozzle, and the situation that the sampling water is mixed and polluted due to turbulent flow generated in the suction process is prevented.

The utility model relates to underground water sampling equipment technical field, concretely to an environmental detection underground water sampling equipment, including sampling pipe, the inner chamber sliding joint of sampling pipe has the limit stop, and the both sides swing joint of limit stop have grabbed and clamped, the below of grabbed and clamped is provided with first piston, the top of grabbed and clamped is provided with second piston, and the bottom of second piston is provided with limit slot, this environmental detection underground water sampling equipment, through sectional type pumping structure, carries out layered sampling to independent aquifer, and the cylinder drives grabbed and clamped to pull first piston to go up, and water sample passes through filter head and enters the below of sampling pipe, when the top of grabbed and clamped is pressed against the inside of limit slot, the bottom of grabbed and clamped loosens the clamping of connector, continues to drive second piston to go up, carries out sampling to another layered water sample through second sampling port, avoids the problem that water sample of different depth mixes together or sampling is not accurate.

A system for repairing an organic polluted site, comprising: a functional well subsystem, comprising a plurality of aeration wells (1), extraction wells (7), pressure monitoring wells and groundwater sampling and monitoring wells, wherein the aeration wells (1) are arranged in a main polluted region, the extraction wells (7) are arranged to cover an aeration region, and it is ensured that a circle is formed on the periphery to surround all the aeration wells; an aeration subsystem, used for providing aeration for each aeration well (1); an extraction subsystem, used for extracting pollutants from each extraction well (7); a data acquisition subsystem, used for acquiring and monitoring key operating parameters of each subsystem; a PLC controller (6), separately connected to each subsystem, monitoring the key operating parameters, and controlling the operation of each subsystem; and an oxygen slow-release-based microbial enhancement subsystem, arranged in the aeration wells (1) and the groundwater sampling and monitoring wells and used for slowly releasing oxygen into groundwater. The system can improve efficiency, greatly shorten the repair time, and save costs. Also disclosed is a repair method using the system.

The utility model provides underground water sampling equipment for environmental monitoring, which comprises a controller main body, a shell cover is arranged at the bottom of the controller main body in a matched manner, a rope winding and unwinding mechanism is arranged in the shell cover, a cable is wound on the rope winding and unwinding mechanism, and a sampling box is arranged at the end part of the cable. According to the equipment, underground water sampling can be achieved, particularly multiple times of fixed-depth sampling can be achieved so as to achieve a better sampling effect, the driving motor achieves rotation of the retractable frame body through transmission so as to achieve lowering of the mooring rope, and when the floating ball makes contact with underground water, the floating ball can rise due to buoyancy; when an iron ring in the floating ball enters an oscillating magnetic field generated by the inductance type proximity sensor, the characteristics of the magnetic field are changed, so that the inductance type proximity sensor is reminded that metal exists, an electric signal output by the inductance type proximity sensor determines that the sampling box is located at a certain accurate position, the electromagnetic valve is controlled to be switched on, and the sampling box is started. And underground water enters the independent liquid storage chamber, so that the sampling purpose is achieved.

The utility model provides an underground water level measuring auxiliary device. The underground water level measuring auxiliary device comprises a support, a winding shaft, a measuring belt and a balancing weight. The support is provided with a supporting arm, and the supporting arm is provided with a through hole and a centering component. The winding shaft is rotationally arranged above the supporting arm and connected with a rotation driving component. The measuring tape is wound on the winding shaft, passes through the through hole, extends out and is connected with a floating block; a locking structure is arranged between the balancing weight and the supporting arm; a groove is formed in the upper side surface of the floating block, so that when the balancing weight applies pressure to the groove, the floating block can sink into water and collect an underground water sample. Meanwhile, the rotation of the winding shaft is controlled by rotating the driving component, and the underground water level depth can be measured while sampling is completed in cooperation with the control of an operator on the straightening degree of the measuring belt. According to the underground water level measuring and taking auxiliary device, underground water level depth measurement and underground water sampling can be rapidly completed, the number of tools needing to be carried by operators is reduced, and the execution efficiency of underground water level measuring and taking operation is ensured.

The utility model provides a depth-keeping and quantitative sampler for underground water and surface water for hydrogeology. The depth-keeping and quantitative sampler for the underground water and the surface water for the hydrogeology comprises a collecting barrel, the top of the collecting barrel is movably sleeved with a positioning frame, and the top of the positioning frame is fixedly connected with a positioning ring. According to the fixed-depth and quantitative sampler for the underground water and the surface water for the hydrogeology, provided by the utility model, by arranging the positioning frame, when deep well water flow sampling needs to be carried out, one end of the pull rope is fixed in the positioning ring, and at the moment, the sampling barrel is started to be put into a deep well, so that water flow enters the sampling barrel through the water inlet; and when the water flow collection is finished, the pull rope is lifted to drive the collection barrel to lift, and the water inlet is sealed by the sealing plate, so that the water flow can be taken out from the interior of the deep well, the problem that the water flow is relatively inconvenient to convey and collect through a pipeline is avoided, and the underground water is conveniently sampled.

The utility model relates to the technical field of sampling devices, and discloses an underground water sampling device which comprises a lifting frame, a hollow shaft, a spline housing, a spline shaft, a cylinder, a spiral blade, a rotating shaft, a circular plate and a filter cartridge. During use, after the hollow shaft is driven by external force to rotate, the cylinder, the spiral blade and the circular plate can be driven to rotate synchronously. Then, the lifting frame is controlled to work, and the [-shaped plate can synchronously descend the cylinder, the spiral blade and the circular plate until the cylinder is inserted into an underground sampling position. After the spline shaft is driven by external force to slide, the rotating shaft can be driven to move, then the circular plate is driven to move, and the lower port of the cylinder is opened through the circular plate. And at the moment, the underground water can enter the cylinder after being filtered by the filter cartridge. Finally, the Beller pipe is put into the cylinder through the through hole, so that the underground water in the cylinder can be collected, and the sampling work of the underground water is completed. No additional drilling device is needed for drilling, and operation is easy and convenient.

The utility model discloses an underground water quality detecting and sampling device which comprises a sampling component connected with a pay-off component and used for sampling underground water; the sampling assembly comprises a first electric push rod, a connecting block, a sampling rod, a sampling hole, a baffle ring and a connecting plate; a shell of the first electric push rod is fixedly connected with the sampling rod, a plurality of sampling holes which are uniformly distributed are formed in the sampling rod, and the sampling rod penetrates through a plurality of baffle rings. The utility model relates to the technical field of underground water sampling, in particular to an underground water quality detecting and sampling device which realizes automatic sampling through the cooperation of a pay-off assembly and a sampling assembly. The transverse adjusting assembly and the vertical adjusting assembly can accurately control the sampling position, so that the representativeness of the sample is ensured; automatic sampling reduces the risk that personnel directly contact a polluted water source, and the operation safety is improved.

The invention provides an environmental geology sampling device, and mainly relates to the technical field of environmental monitoring. An environmental geology sampling device comprises a frame supporting structure, a device fixing structure, an underground water sampling device, a multi-stage drilling device and a multi-stage drill bit rod. The underground water sampling and monitoring device has the beneficial effects that the underground water sampling and monitoring device which is light in weight and easy to transport is designed, and the stability of the underground water sampling and monitoring device on various grounds is ensured through the triangular supporting structure and the adjustable extension rod. The device adopts a rotary drill bit rod and an internal power structure, and is combined with a gear disc to synchronously drive a conduit shaft and a sampling pump, so that drilling and sampling are synchronously performed, and conduit torsion is avoided. The multi-stage magnetic attraction-bolt connecting rod can prolong the drilling depth and protect the external sampling guide pipe, and the device has the capabilities of light weight, self-adaptive balance and deep sampling, and is suitable for underground water quality monitoring work in a complex environment.

This invention relates to the field of groundwater sampling devices, specifically a groundwater sampling device and its usage method for geological engineering. The device includes a sampler housing with several sampling chambers located on the upper part of the inner wall of the housing. Each sampling chamber has an inlet at its upper part, and a sealing rod is movably installed at the inlet. It also includes a lifting mechanism movably installed at the bottom of the sampler housing for removing the sampler housing from the groundwater. This groundwater sampling device for geological engineering uses the inherent water pressure difference between the shallow, middle, and deep groundwater layers as its driving force. Through a series of mechanical linkages involving a piston cylinder, piston rod, geared disc sleeve, gear set, driven rod, lever ring, and swing plate, the three sampling chambers can be independently opened and closed automatically and sequentially by lowering and pulling the rope, based on changes in water pressure. This achieves adaptive stratified water sampling, significantly simplifying field operations, reducing manual labor intensity, and significantly improving the automation level and efficiency of sampling.

The application discloses a groundwater sampling flow control system, which comprises an ultrasonic flow detection module, a flow control module, a data processing and storage module, a display module and a portable integrated box. The measurement range of the ultrasonic flow detection module is 0-20 L / min, and the precision control is ±0.1%. The flow rate and flow are calculated by detecting the time difference of the forward and reverse flow propagation of sound in the groundwater fluid. The flow control module cooperates with a sampling pump to realize accurate flow regulation and control. The data processing and storage module can calculate the cumulative flow, store historical data and support USB export. The display module realizes the digital real-time display of the flow rate, cumulative flow, battery capacity and other information. The system realizes accurate control and measurement of the groundwater sampling flow, avoids sample pollution, is portable and easy to operate, can record the well washing state, and meets the national standard requirements for VOC water sample collection.

The utility model provides an underground water sampling device, which relates to the technical field of underground water sampling and comprises a sampling box, an equipment box mounted on one side of the outer end of the sampling box, a connecting pipe connected to the bottom of the equipment box, a pipe barrel in threaded connection to the bottom of the connecting pipe, a filter screen hopper mounted at the bottom of the pipe barrel and a filter component arranged in the sampling box, the filter is used for filtering mud impurities in water. According to the underground water sampling device, particle impurities and slurry in water can be filtered thoroughly through the filtering assembly, it is guaranteed that a collected water sample is clean, the sampled water can be directly detected, the operation of filtering before detection is reduced, then the detection workload is reduced, and the water sample detection work efficiency is improved; impurities adsorbed outside the filter screen hopper can be removed through the cleaning assembly, so that water can flow into the filter screen hopper and is sucked by the sampling pipe for sampling, the filter screen hopper can be cleaned without detaching the pipe barrel, and the sampling work is prevented from being influenced by small water absorption amount of the sampling pipe.

The utility model relates to underground water sampling and well washing technical field discloses a kind of underground water sampling devices, including two main body skeletons, two the main body skeletons relative side four corners are evenly provided with horizontal telescopic skeleton, multiple the horizontal telescopic skeleton between being provided with X type support skeleton, two the main body skeleton bottom end are evenly provided with two vertical telescopic skeleton, four The vertical telescopic skeleton bottom end are rotatably provided with gyro wheel, and detection cup, sampling device and sampling pump retraction device are additionally set on skeleton. In the utility model, sampling device can reduce the number of equipment instruments needed for on-site sampling, reduce the carrying load of sampling personnel by pulling and carrying, improve sampling efficiency, realize the storage of the device and different flow and parallel sampling of water sample through structural design, meet multiple indicators, multiple quantities and multiple sampling, improve the efficiency of sampling.

The application discloses a kind of dump groundwater sampling device, including fixed support, support is equipped with tunneling assembly and electric telescopic rod, electric telescopic rod movable end connects drive assembly, drive assembly is connected tunneling assembly and sampling assembly respectively;Sampling assembly contains symmetrical conical guide ring, ring bin, adjusting plate (baffle and filter plate splicing), linkage ring, gear ring, gear and first motor, tunneling assembly contains shell, screw rod and throwing window, drive assembly contains second motor, transmission shaft and compression spring.After reaching the preset sampling depth, adjusting plate realizes sampling and sealing switching, filter plate filters impurities, improves sampling efficiency, and is suitable for complex dump environment.