Underground water resource pollution detection device

Abstract

The invention relates to the field of water resource detection, in particular to an underground water resource pollution detection device. The technical problems that in current underground water detection, water pumping equipment is put into a hole for pumping after the hole is drilled in a designated place, long-time waiting is needed, water containing suspended particles, sediments and colloidal pollutants is easy to pump, a pipeline is blocked, and then the detection progress and accuracy are reduced are solved. The underground water resource pollution detection device comprises a fixed pipe, a groove pipe is installed on the lower portion of the fixing pipe, and four open grooves are formed in the groove pipe. The threaded hollow pipe drives the connector to move synchronously, the connector pushes the lower portions of the four supporting plates to expand outwards, the four supporting plates drive the upper portions of the four groove plates to expand outwards, a cavity for temporarily storing underground water is formed after the interior of soil is supported, and the underground water in the cavity in the bottom of the groove pipe is extracted through the sleeve and the embedded pipe and is detected and analyzed. And the filter screen can effectively filter impurities in underground water.

Description

Technical Field

[0001] The invention relates to the field of water resource detection, and in particular to a groundwater resource pollution detection device. Background Art

[0002] Groundwater resources need to be tested for pollution to ensure drinking water safety, protect the ecological environment, prevent and control pollution, ensure the quality of agricultural and industrial water, comply with regulatory requirements, and maintain the sustainable use of groundwater. There are many swamp wetlands in Inner Mongolia, mainly distributed in the eastern and central regions, such as the Ergun Wetland in Hulunbuir Grassland, the Hunshandake Sand Wetland in Xilin Gol Grassland, and the swamps on the southern foot of the Greater Khingan Range. The soil of the swamps is basically organic matter: the swamp wetland plants decay to form peat or humus, and usually do not contain larger particles of sand or hard soil layers.

[0003] Currently, when testing groundwater resources in swamp wetlands, holes are usually drilled at designated locations and pumping equipment is placed in for extraction. Currently, it takes a long time to obtain a sufficient sample volume, and it is easy to extract water containing suspended particles, sediments and colloidal pollutants, which can cause blockage in the extraction pipeline, thereby affecting the stability and continuity of the extraction process, reducing the extraction efficiency, and further affecting the progress and accuracy of the test. Summary of the invention

[0004] In order to overcome the shortcomings of current groundwater detection, which usually involves drilling a hole at a designated location and then placing a pumping equipment therein for extraction, which not only requires a long wait, but is also prone to extracting water containing suspended particles, sediments and colloidal pollutants, leading to pipeline blockage, affecting the extraction stability and efficiency, and thus reducing the detection progress and accuracy, a groundwater resource pollution detection device is provided, which can exert an extrusion force on the surrounding soil to promote groundwater seepage, and form a chamber for temporarily storing groundwater underground, thereby improving water collection efficiency and reducing extraction delays caused by insufficient water. At the same time, the seeping groundwater is filtered multiple times to effectively remove suspended particles, sediments and colloidal pollutants, ensure that relatively pure water is extracted, prevent pumping pipe blockage, improve extraction stability and continuity, speed up groundwater sampling, and further optimize the detection process; by reducing impurity interference, the accuracy of water quality parameter detection is improved, and the analysis of pollutants such as heavy metals, organic pollutants, and microorganisms is more accurate, providing more scientific and reliable data support for groundwater pollution assessment, source tracing analysis, and control plans.

[0005] Technical solution: A groundwater resource pollution detection device includes a fixed pipe, a slot pipe is installed at the lower part of the fixed pipe, the slot pipe has four slots, a cavity is provided at the lower part of the slot pipe, a screw cap is screwed on the lower part of the slot pipe, a filter is provided on the screw cap, the cavity at the lower part of the slot pipe is located below the filter, and sampling components are provided on the fixed pipe and the slot pipe.

[0006] In addition, it is particularly preferred that a tripod is further included, and a tripod for supporting the device is installed on the upper part of the fixed tube.

[0007] In addition, it is particularly preferred that the sampling assembly includes a nut, a nut is installed on the upper part of the fixed tube, a threaded hollow tube is threadedly connected to the nut, a sleeve is installed on the threaded hollow tube, two sliders are slidably provided in the threaded hollow tube, an embedded tube is rotatably installed between the two sliders, the outer ring of the upper part of the embedded tube is set to a hexagonal shape, the upper part of the embedded tube is slidably connected to the sleeve, and a bearing seat is installed at the lower part of the groove tube, and the lower part of the embedded tube is rotatably connected to the bearing seat.

[0008] In addition, it is particularly preferred that the lower end of the embedded tube rotatably passes through the filter screen, the lower end of the embedded tube is arranged with an oblique opening, and the oblique opening of the lower end of the embedded tube is located in the cavity at the lower part of the groove tube.

[0009] In addition, it is particularly preferred that it also includes a driving assembly installed on the threaded hollow tube, the driving assembly includes a dust cover, a dust cover is installed on the upper part of the threaded hollow tube, a turntable is installed on the dust cover, and a handle is rotatably provided on the turntable.

[0010] In addition, it is particularly preferred that it also includes an expansion component installed on the grooved tube and the threaded hollow tube, the expansion component includes a groove plate, a groove plate is rotatably provided at the lower part of the four grooves on the grooved tube, a discharge port is opened on each groove plate, a support plate is rotatably provided on the upper part of the four groove plates, and a connecting head is rotatably provided at the bottom of the threaded hollow tube. The connecting head is hollow, and the embedded tube passes through the connecting head. The upper parts of the four support plates are rotatably connected to the connecting head.

[0011] In addition, it is particularly preferred that it also includes a blocking component installed on the support plate, the blocking component includes a sealing plate, a groove is opened on the side where the four support plates are close to each other, a sealing plate is installed on the side where the four support plates are close to each other, a servo motor is installed in the groove of the four support plates, the four output shafts of the four servo motors respectively rotate to pass through the four sealing plates, and a blocking plate is installed on the four output shafts of the four servo motors.

[0012] In addition, it is particularly preferred that it also includes an anti-blocking component installed on the rotary cover and the embedded tube, the anti-blocking component includes a sliding rod, two sliding rods are slidably provided at the bottom of the rotary cover, two return springs are connected between the top of the two sliding rods and the rotary cover, a poking frame is provided in the middle of the two sliding rods, and a plurality of poking rods are evenly spaced on the side of the poking frame close to the filter screen, a corrugated frame is installed at the lower part of the embedded tube, and a corrugated surface is provided on the corrugated frame, a ball is embedded in the lower end of the two sliding rods, and the corrugated surface on the corrugated frame is in contact with the two balls.

[0013] In addition, it is particularly preferred that it also includes an arc-shaped mesh cover, a sliding arc-shaped mesh cover is provided at the lower part of the embedded tube, a magnet ring is provided at the bottom of the arc-shaped mesh cover, and the magnet ring at the bottom of the arc-shaped mesh cover is adsorbed on the iron screw cover.

[0014] In addition, it is particularly preferred that it also includes a brush rack, which is slidably provided at the lower part of the embedded tube, and a plurality of bristles are arranged on the brush rack, the bristles on the brush rack are in contact with the arc-shaped mesh cover, and a downward pressure spring is connected between the brush rack and the embedded tube.

[0015] The beneficial effects of the present invention are as follows: 1. The rotating handle drives the turntable, the dust cover, the threaded hollow tube, the sleeve, the slider and the embedded tube to rotate. Under the action of the nut, the threaded hollow tube rotates and moves toward the filter screen. The threaded hollow tube drives the connector to move synchronously. The connector pushes the lower parts of the four support plates to expand outward. The four support plates drive the upper parts of the four slot plates to expand outward. After being supported, a chamber for temporarily storing groundwater is formed in the soil, and an extrusion force is applied to the surrounding soil, so that the groundwater seeps out of the soil and is filtered through the filter screen and flows into the bottom cavity of the slot tube. The operator connects the pumping equipment to the sleeve, and extracts the groundwater in the bottom cavity of the slot tube through the sleeve and the embedded tube for detection and analysis. The filter screen can effectively filter impurities in the groundwater, prevent impurities from clogging the sleeve and the embedded tube, and improve the accuracy of detection. At the same time, the extrusion effect of the expansion structure on the soil improves the seepage efficiency of groundwater, making the extraction process more efficient and stable.

[0016] 2. After the four support plates and four slot plates are expanded, the operator controls the output shafts of the four servo motors to rotate ninety degrees and then stop. The output shafts of the servo motors drive the four baffles to rotate ninety degrees synchronously. After the baffles rotate, they provide effective support for the top soil to prevent soil collapse, ensure the stability of the chamber, and improve the temporary storage efficiency and extraction safety of groundwater. When the four support plates and four slot plates need to be retracted and reset, the operator controls the output shafts of the four servo motors to rotate ninety degrees in the opposite direction and then stop. The output shafts of the servo motors drive the four baffles to rotate ninety degrees in the opposite direction, so that the baffles return to their initial positions, preparing for subsequent operations and avoiding the normal use of the equipment being affected by the expanded state of the baffles.

[0017] 3. When the embedded tube rotates, it drives the corrugated frame to rotate. Under the action of the corrugated surface on the corrugated frame and the reset spring, the two sliding rods drive the poking frame to reciprocate up and down. The ball plays a guiding role on the corrugated surface on the corrugated frame, so that the poking rod on the poking frame continuously pushes the impurities on the filter screen to prevent the impurities from clogging the filter screen and improve the water permeability of the filter screen, thereby accelerating the collection speed of groundwater and improving the detection efficiency; the arc-shaped mesh cover performs preliminary filtration of impurities by increasing the filtration area, reducing the impurities entering the filter screen, and improving the durability and stability of the overall filtration system. At the same time, when the embedded tube rotates, it drives the brush frame to rotate. Under the action of the downward pressure spring, the bristles on the brush frame closely fit the mesh holes on the arc-shaped mesh cover and continuously clean them to prevent the accumulation of impurities from affecting the filtration effect, further improving the water permeability of the arc-shaped mesh cover and the filter screen, improving the collection efficiency of groundwater, and making the detection process more efficient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the driving assembly of the present invention.

[0020] Figure 3 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the sampling component and the driving component of the present invention.

[0021] Figure 4 It is a schematic diagram of a first cross-sectional stereoscopic structure of the sampling assembly and the driving assembly of the present invention.

[0022] Figure 5 It is a schematic diagram of a second cross-sectional three-dimensional structure of the sampling assembly and the driving assembly of the present invention.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the expansion component of the present invention.

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the expansion assembly of the present invention after it is unfolded.

[0025] Figure 8 It is a cross-sectional three-dimensional structural schematic diagram of the present invention.

[0026] Fig. 9 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the present invention.

[0027] Fig.10 It is a schematic diagram of the three-dimensional structure of the sampling component and the expansion component of the present invention.

[0028] Fig.11 It is a schematic cross-sectional three-dimensional structure diagram of the sampling component and the expansion component of the present invention.

[0029] Fig.12It is a schematic diagram of the three-dimensional structure of the barrier assembly of the present invention.

[0030] Fig.13 The figure is a three-dimensional structural schematic diagram of the arc-shaped mesh cover, the brush holder and the downward pressure spring of the present invention.

[0031] Fig.14 It is a schematic diagram of the three-dimensional structure of the anti-blocking component of the present invention.

[0032] Fig.15 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the anti-blocking component of the present invention.

[0033] Fig.16 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the expansion component and the blocking component of the present invention.

[0034] Fig.17 It is a schematic diagram of the first three-dimensional structure of the expansion component and the blocking component after they are unfolded according to the present invention.

[0035] Fig.18 It is a schematic diagram of a second three-dimensional structure after the expansion component and the blocking component of the present invention are unfolded.

[0036] The meanings of the reference numerals in the figure are: 1. fixed tube, 2. groove tube, 21. tripod, 3. screw cap, 4. filter screen, 51. nut, 52. threaded hollow tube, 53. sleeve, 531. slider, 532. bearing seat, 54. embedded tube, 61. dust cover, 62. turntable, 63. handle, 71. groove plate, 72. support plate, 73. connector, 81. sealing plate, 82. servo motor, 83. baffle, 91. slide rod, 911. ball, 92. reset spring, 93. poke frame, 94. corrugated frame, 10. arc mesh cover, 11. brush frame, 12. downward pressure spring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0038] Embodiment 1: A groundwater resource pollution detection device, such as Figure 1-Figure 16As shown, it includes a fixed pipe 1, a slot pipe 2 is installed at the lower part of the fixed pipe 1, four slots are opened on the slot pipe 2, a cavity for collecting groundwater is provided at the lower part of the slot pipe 2, and the groundwater enters the cavity at the lower part of the slot pipe 2 through the four slots on the slot pipe 2. A screw cap 3 is screwed on the lower part of the slot pipe 2, the screw cap 3 is made of iron, a filter screen 4 is provided on the screw cap 3, the cavity at the lower part of the slot pipe 2 is located below the filter screen 4, and a sampling component for extracting the collected groundwater is provided on the fixed pipe 1 and the slot pipe 2.

[0039] The device also includes a tripod 21 , on the upper part of the fixed tube 1 there is a tripod 21 for supporting the device.

[0040] The sampling assembly includes a nut 51, a nut 51 is fixedly installed on the upper part of the fixed tube 1, a threaded hollow tube 52 is threadedly connected to the nut 51, a sleeve 53 is installed on the threaded hollow tube 52, two sliders 531 are slidably provided in the threaded hollow tube 52, an embedded tube 54 is rotatably installed between the two sliders 531, the threaded hollow tube 52 will slide up and down along the two sliders 531, the outer ring of the upper part of the embedded tube 54 is set to be hexagonal, the upper part of the embedded tube 54 is slidably connected to the sleeve 53, the upper part of the embedded tube 54 is tightly fitted with the sleeve 53, and a bearing seat 532 is installed at the lower part of the groove tube 2, and the lower part of the embedded tube 54 is rotatably connected to the bearing seat 532 through a waterproof bearing.

[0041] The lower end of the embedded tube 54 rotatably passes through the filter screen 4 , and the lower end of the embedded tube 54 is arranged with an oblique opening, and the oblique opening of the lower end of the embedded tube 54 is located in the cavity at the lower part of the groove tube 2 .

[0042] It also includes a driving assembly installed on the threaded hollow tube 52, the driving assembly includes a dust cover 61, a dust cover 61 is installed on the upper part of the threaded hollow tube 52 by bolts, a turntable 62 is fixedly installed on the dust cover 61, and a handle 63 is rotatably provided on the turntable 62 through a bearing.

[0043] It also includes an expansion component installed on the groove pipe 2 and the threaded hollow pipe 52, the expansion component is used to expand the underground space and squeeze the surrounding soil, the expansion component includes a groove plate 71, the lower part of the four grooves on the groove pipe 2 is provided with a groove plate 71 by bearing rotation, each groove plate 71 is provided with a discharge port, the discharge port on the groove plate 71 is used to discharge the soil and impurities in the groove pipe 2 when the groove plate 71 and the support plate 72 are reset, the upper part of the four groove plates 71 is provided with a support plate 72 by bearing rotation, the bottom of the threaded hollow pipe 52 is provided with a connector 73 by bearing rotation, the connector 73 is hollow, the embedded pipe 54 passes through the connector 73, and the upper parts of the four support plates 72 are connected to the connector 73 by bearing rotation.

[0044] When it is necessary to detect the pollution of groundwater resources, the operator first drills a hole at a designated position on the ground, and then moves the device to the top of the drilled hole, so that the fixed pipe 1, the grooved pipe 2, the screw cover 3, the filter screen 4, the threaded hollow pipe 52, the slider 531, the embedded pipe 54, the groove plate 71, the support plate 72 and the connector 73 extend into the drilled hole, and then unfold the tripod 21, and adjust the position of the tripod 21, and stabilize the position of the device through the tripod 21, and then the operator holds the handle 63, and drives the turntable 62, the dust cover 61, the threaded hollow pipe 52, the sleeve 53, the slider 531 and the embedded pipe 54 to rotate through the handle 63, and under the action of the nut 51, the threaded hollow pipe 52 rotates and moves toward the filter screen 4, and the threaded hollow pipe 52 moves along the slider 531 toward the filter screen 4, and the threaded hollow pipe 52 drives the sleeve 53 to move along the embedded pipe 54 toward the filter screen 4, and the threaded The hollow tube 52 drives the connector 73 to move toward the filter screen 4, and the connector 73 pushes the lower parts of the four support plates 72 to expand in the directions away from each other, and the four support plates 72 drive the upper parts of the four slot plates 71 to expand in the directions away from each other. Through the expansion of the four support plates 72 and the four slot plates 71, a chamber for temporarily storing groundwater can be opened in the soil, and the four support plates 72 and the four slot plates 71 squeeze the surrounding soil when expanding, so that the groundwater in the surrounding soil can be squeezed out, and the groundwater seeps out of the soil and flows into the cavity at the bottom of the slot pipe 2 after being filtered by the filter screen 4. The operator connects the pumping equipment to the casing 53, extracts the groundwater in the cavity at the bottom of the slot pipe 2 through the casing 53 and the embedded pipe 54, and then performs detection and analysis, and filters the impurities in the groundwater through the filter screen 4, so as to avoid the impurities from clogging the casing 53 and the embedded pipe 54, and at the same time, the accuracy of the detection can be improved;After the groundwater detection is completed, the operator holds the handle 63 to drive the turntable 62, the dust cover 61, the threaded hollow tube 52, the sleeve 53, the slider 531 and the embedded tube 54 to rotate in the opposite direction. Under the action of the nut 51, the threaded hollow tube 52 rotates and moves in the direction away from the filter screen 4. The threaded hollow tube 52 moves along the slider 531 in the direction away from the filter screen 4. The threaded hollow tube 52 drives the sleeve 53 to move along the embedded tube 54 in the direction away from the filter screen 4. The threaded hollow tube 52 drives the connector 73 to move in the direction away from the filter screen 4. The connector 73 pushes the lower parts of the four support plates 72 to shrink and reset in the direction of approaching each other. The four support plates 72 drive the upper parts of the four slot plates 71 to shrink and reset in the direction of approaching each other. During the shrinkage and reset of the four support plates 72 and the four slot plates 71, a small amount of soil and impurities in the slot tube 2 are removed. It can be discharged through the discharge ports on the four slot plates 71. After the four support plates 72 and the four slot plates 71 are reset, the operator takes the device out of the drilled hole and then puts it into the next location where groundwater needs to be tested. This can be repeated to quickly obtain groundwater to be tested without damaging the surface, reducing the waiting time. At the same time, impurities are filtered to improve the accuracy of the test. When there are many impurities in the cavity at the bottom of the slot pipe 2, the operator can unscrew the cover 3 to clean the cavity at the bottom of the slot pipe 2, and then reversely rotate the cover 3 to reset. The soil of the swamp is mainly composed of organic matter, which is soft and rich in humus. It usually does not contain large particles of sand or hard soil. Therefore, when the support plates 72 and the slot plates 71 are opened or closed, the soil environment of the swamp will not hinder it. ;

[0045] Embodiment 2: Based on embodiment 1, Figure 12-Figure 18 As shown, it also includes a blocking component installed on the support plate 72, and the blocking component is used to block the top soil. The blocking component includes a sealing plate 81. A sinking groove is opened on the side where the four support plates 72 are close to each other. A sealing plate 81 is installed on the side where the four support plates 72 are close to each other. A servo motor 82 is installed in the sinking groove of the four support plates 72. The four output shafts of the four servo motors 82 respectively rotate through the four sealing plates 81 through waterproof bearings. A blocking plate 83 is installed on the four output shafts of the four servo motors 82. The blocking plate 83 is used to prevent soil collapse.

[0046] After the four support plates 72 and the four slot plates 71 are expanded, the operator controls the output shafts of the four servo motors 82 to rotate ninety degrees and then stop, and the output shafts of the four servo motors 82 drive the four baffles 83 to rotate ninety degrees and then stop. After the four baffles 83 rotate, they support the soil on the top to prevent the soil on the top from collapsing. When the four support plates 72 and the four slot plates 71 are to be retracted and reset, the operator controls the output shafts of the four servo motors 82 to rotate ninety degrees in the opposite direction and then stop, and the output shafts of the four servo motors 82 drive the four baffles 83 to rotate ninety degrees in the opposite direction and then stop.

[0047] Embodiment 3: Based on embodiment 2, Figure 13-Figure 15 As shown, it also includes an anti-blocking component installed on the rotary cover 3 and the embedded tube 54, and the anti-blocking component is used to dredge the filter 4. The anti-blocking component includes a slide bar 91. Two slide bars 91 are slidably provided at the bottom of the rotary cover 3. Two reset springs 92 are connected between the top of the two slide bars 91 and the rotary cover 3. A poking frame 93 is provided in the middle of the two slide bars 91. A plurality of poking rods are evenly spaced on one side of the poking frame 93 close to the filter 4. A corrugated frame 94 is installed at the lower part of the embedded tube 54, and a corrugated surface is provided on the corrugated frame 94. A ball 911 is embedded in the lower end of the two slide bars 91, and the corrugated surface on the corrugated frame 94 is in contact with the two ball 911.

[0048] It also includes an arc-shaped mesh cover 10 , which is slidably provided at the lower part of the embedded tube 54 , and a magnet ring is provided at the bottom of the arc-shaped mesh cover 10 , and the magnet ring at the bottom of the arc-shaped mesh cover 10 is adsorbed on the iron screw cover 3 .

[0049] It also includes a brush rack 11, which is slidably provided at the lower part of the embedded tube 54. The brush rack 11 is provided with a plurality of bristles, and the bristles on the brush rack 11 are in contact with the arc-shaped mesh cover 10. A downward pressure spring 12 is connected between the brush rack 11 and the embedded tube 54.

[0050] When the embedded tube 54 rotates, it drives the corrugated frame 94 to rotate. Under the action of the corrugated surface on the corrugated frame 94 and the return spring 92, the two sliding rods 91 drive the poking frame 93 to move up and down continuously. The ball 911 plays a guiding role on the corrugated surface on the corrugated frame 94. The poking rod on the poking frame 93 pushes the impurities on the filter screen 4, thereby preventing the impurities from clogging the filter screen 4, improving the water permeability of the filter screen 4, and further improving the collection speed of groundwater, thereby accelerating the detection efficiency of groundwater.

[0051] The curved mesh cover 10 can increase the filtering area, and can filter impurities preliminarily, reducing the impurities entering the filter screen 4. In addition, when the embedded tube 54 rotates, it will drive the brush holder 11 to rotate. Under the action of the downward pressure spring 12, the bristles on the brush holder 11 will be in close contact with the mesh holes on the curved mesh cover 10, so that the impurities on the curved mesh cover 10 can be continuously cleaned, thereby further improving the water permeability of the curved mesh cover 10 and the filter screen 4, further improving the groundwater collection speed, and speeding up the groundwater detection efficiency again. 4, the operator can lift the arc-shaped mesh cover 10 upwards, the magnet ring on the arc-shaped mesh cover 10 is separated from the iron screw cover 3, the arc-shaped mesh cover 10 drives the brush holder 11 to move upwards, and the downward pressure spring 12 is compressed accordingly, and then the operator can clean the impurities on the filter screen 4. After the impurities on the filter screen 4 are cleaned, the operator releases the arc-shaped mesh cover 10, and under the action of the downward pressure spring 12, the brush holder 11 pushes the arc-shaped mesh cover 10 to move downward and reset, and the magnet ring on the arc-shaped mesh cover 10 is adsorbed with the iron screw cover 3 again.

[0052] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A groundwater resource pollution detection device, characterized in that: The invention comprises a fixed tube (1), a grooved tube (2) is installed at the lower part of the fixed tube (1), four grooves are formed on the grooved tube (2), a cavity is provided at the lower part of the grooved tube (2), a screw cap (3) is screwed on the lower part of the grooved tube (2), a filter screen (4) is provided on the screw cap (3), the cavity at the lower part of the grooved tube (2) is located below the filter screen (4), and sampling components are provided on the fixed tube (1) and the grooved tube (2); The sampling assembly comprises a nut (51), a nut (51) is installed on the upper part of the fixed tube (1), a threaded hollow tube (52) is threadedly connected to the nut (51), a sleeve (53) is installed on the threaded hollow tube (52), two sliders (531) are slidably provided inside the threaded hollow tube (52), an embedded tube (54) is rotatably installed between the two sliders (531), the outer ring of the upper part of the embedded tube (54) is set in a hexagonal shape, the upper part of the embedded tube (54) is slidably connected to the sleeve (53), and a bearing seat (532) is installed on the lower part of the groove tube (2), and the lower part of the embedded tube (54) is rotatably connected to the bearing seat (532); The invention also comprises an expansion component installed on the grooved tube (2) and the threaded hollow tube (52), the expansion component comprising a groove plate (71), a groove plate (71) is rotatably provided at the lower part of the four grooves on the grooved tube (2), each groove plate (71) has a discharge opening, a support plate (72) is rotatably provided at the upper part of the four groove plates (71), a connecting head (73) is rotatably provided at the bottom of the threaded hollow tube (52), the connecting head (73) is hollow, the embedded tube (54) passes through the connecting head (73), and the upper parts of the four support plates (72) are rotatably connected to the connecting head (73).

2. A groundwater resource pollution detection device according to claim 1, characterized in that: It also includes a tripod (21), and a tripod (21) for supporting the device is installed on the upper part of the fixed tube (1).

3. A groundwater resource pollution detection device according to claim 1, characterized in that: The lower end of the embedded tube (54) is rotatably passed through the filter screen (4), and the lower end of the embedded tube (54) is provided with an oblique opening, and the oblique opening of the lower end of the embedded tube (54) is located in the cavity at the lower part of the groove tube (2).

4. A groundwater resource pollution detection device according to claim 2, characterized in that: The invention also comprises a driving assembly mounted on the threaded hollow tube (52), the driving assembly comprising a dust cover (61), a dust cover (61) being mounted on the upper part of the threaded hollow tube (52), a rotating disk (62) being mounted on the dust cover (61), and a rotating handle (63) being rotatably disposed on the rotating disk (62).

5. A groundwater resource pollution detection device according to claim 4, characterized in that: It also includes a blocking component installed on the support plate (72), the blocking component including a sealing plate (81), a sink groove is opened on one side of the four support plates (72) close to each other, a sealing plate (81) is installed on one side of the four support plates (72) close to each other, a servo motor (82) is installed in the sink groove of each of the four support plates (72), four output shafts of the four servo motors (82) are respectively rotatably passed through the four sealing plates (81), and a blocking plate (83) is installed on each of the four output shafts of the four servo motors (82).

6. A groundwater resource pollution detection device according to claim 5, characterized in that: The invention also comprises an anti-blocking component installed on the rotary cover (3) and the embedded tube (54), the anti-blocking component comprising a slide bar (91), two slide bars (91) are slidably provided at the bottom of the rotary cover (3), two return springs (92) are connected between the top ends of the two slide bars (91) and the rotary cover (3), a poking frame (93) is provided in the middle of the two slide bars (91), a plurality of poking bars are evenly spaced on the side of the poking frame (93) close to the filter screen (4), a corrugated frame (94) is installed at the lower part of the embedded tube (54), a corrugated surface is provided on the corrugated frame (94), a ball (911) is embedded in the lower end of each of the two slide bars (91), and the corrugated surface on the corrugated frame (94) contacts the two ball (911).

7. A groundwater resource pollution detection device according to claim 6, characterized in that: It also includes an arc-shaped mesh cover (10), the lower part of the embedded tube (54) is slidably provided with an arc-shaped mesh cover (10), the bottom of the arc-shaped mesh cover (10) is provided with a magnet ring, and the magnet ring at the bottom of the arc-shaped mesh cover (10) is adsorbed on the iron rotary cover (3).

8. A groundwater resource pollution detection device according to claim 7, characterized in that: The invention also comprises a brush frame (11), which is slidably provided at the lower part of the embedded tube (54), and a plurality of bristles are arranged on the brush frame (11). The bristles on the brush frame (11) are in contact with the arc-shaped mesh cover (10), and a downward pressure spring (12) is connected between the brush frame (11) and the embedded tube (54).

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