Underground water sampling device

Abstract

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.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater sampling, in particular to a groundwater sampling device. Background Art

[0002] Environmental DNA sampling technology is a molecular biology method that identifies and monitors biological species by detecting DNA fragments of organisms in water bodies. This technology has a wide range of applications in ecology, environmental protection, aquaculture and other fields. The advantages of environmental DNA water sampling include being non-invasive, rapid, and can be carried out on-site. Environmental DNA rapid water sampling provides a powerful tool for studying aquatic organisms and is of great significance to the study of aquatic ecological environment.

[0003] However, the existing groundwater sampling devices still have the following shortcomings and deficiencies in actual processes:

[0004] 1. When the existing groundwater sampling device is used, the water sampled and drawn is directly discharged into the sampling tube without filtering the sampled water. Since the sampled water is mixed with mud, it will precipitate when collected in the sampling tube, affecting the water sample detection. When the water sample is detected, filtering and processing operations are required, which increases the workload of water sample detection and reduces detection efficiency.

[0005] 2. When sampling water, a filter bucket will be set on the outside of the sampling tube to prevent large impurities in the water from being sucked into the sampling tube. However, if large impurities are adsorbed on the outside of the filter bucket and are not cleaned in time, the water intake of the filter bucket will be affected, resulting in less water absorption by the sampling tube. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a groundwater sampling device, which solves the problem that the sampled water is mixed with mud, which will precipitate when collected in the sampling tube, affecting the water sample detection; and the problem that large impurities are adsorbed on the outside of the filter bucket and are not cleaned in time, which will affect the water intake of the filter bucket.

[0007] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0008] A groundwater sampling device comprises: a sampling box, an equipment box installed on one side of the outer end of the sampling box, a connecting pipe connected to the bottom of the equipment box, a tube threadedly connected to the bottom of the connecting pipe, a filter bucket installed at the bottom of the tube, a filter assembly arranged inside the sampling box for filtering mud impurities in water, and a cleaning assembly arranged on the tube for cleaning impurities adhered to the outside of the filter bucket.

[0009] Preferably, the filter assembly includes: a water filter trough arranged at the top of the interior of the sampling box, support plates are respectively provided on both sides of the inner wall of the water filter trough, a socket is opened on the outside of the sampling box and is aligned with the support plate, and the inner ring of the socket is provided with a sealing ring, a coarse filter core plate is arranged inside the socket, a fine filter core plate is provided at the bottom of the coarse filter core plate, and a water outlet hose is provided in the middle of the bottom end of the water filter trough, and a sampling bottle is provided at the bottom of the water outlet hose.

[0010] Preferably, the cleaning assembly includes: a fixed head installed on the tube, micro cylinders installed on both sides of the bottom end of the fixed head, a telescopic rod connected to the bottom of the micro cylinder, a cleaning block with a circular structure installed at the bottom of the telescopic rod, and the cleaning block is located outside the filter bucket, and multiple scrapers are installed on the inner circle of the cleaning block, and the multiple scrapers are tightly fitted to the outer wall of the filter bucket.

[0011] Preferably, a water pump is installed inside the equipment box, a water suction pipe is installed on one side of the outer end of the water pump, a drainage pipe is installed on one side of the top of the water pump, a sampling tube is installed inside the tube, and a pipe joint connected to the water suction pipe is provided on the top of the sampling tube.

[0012] Preferably, a mobile base is installed at the bottom of the sampling box, and limiting screw holes are respectively opened on both sides of the top of the mobile base. The internal threads of the limiting screw holes are connected with screws, a hand crank block is installed on the top of the screw, and a conical head is welded to the bottom end of the screw.

[0013] Preferably, a box body is installed on one side of the limiting screw hole, a plurality of limiting grooves are opened inside the box body, a counterweight block is provided inside the plurality of limiting grooves, and a handle is installed on the top of the counterweight block.

[0014] Preferably, a battery box is installed on the top of the equipment box, a control panel is installed on the outside of the battery box, a battery is installed inside the battery box, a power cord is connected to the outer end of the battery, a connector is installed on the power cord, a connecting wire is provided on the outside of the micro cylinder, and a plug for use with the connector is installed at one end of the connecting wire.

[0015] The beneficial effects of the utility model are:

[0016] (1) The filter assembly of the utility model can filter out particulate impurities and mud in the water, ensuring that the collected water sample is clean. The sampled water can be directly tested, reducing the operation of filtering before testing, thereby reducing the testing workload and improving the efficiency of water sample testing.

[0017] (2) The cleaning assembly of the present invention can remove impurities adsorbed on the outside of the filter bucket, allowing water to flow into the filter bucket and be sucked into the sampling tube for sampling. There is no need to disassemble the tube to clean the filter bucket, avoiding the sampling tube absorbing less water and affecting the sampling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is an overall cross-sectional schematic diagram of the present utility model.

[0020] Figure 3 This is a cross-sectional schematic diagram of the sampling box of the present utility model.

[0021] Figure 4 It is a schematic cross-sectional view of the tube of the present utility model.

[0022] Figure 5 This is a schematic structural diagram of the cleaning block of the present utility model.

[0023] Figure 6 This is a schematic diagram of the box structure of the present utility model.

[0024] Figures 1-6 In: 1. Sampling box; 101. Equipment box; 102. Connecting pipe; 103. Tube; 104. Filter hopper; 105. Water pump; 106. Suction pipe; 107. Drain pipe; 108. Sampling tube; 109. Pipe joint; 2. Filter trough; 201. Support plate; 202. Socket; 203. Coarse filter plate; 204. Fine filter plate; 205. Water outlet hose; 206. Sampling bottle; 3. Fixed head; 301. Micro Cylinder; 302, telescopic rod; 303, cleaning block; 304, scraper; 4, mobile base; 401, limiting screw hole; 402, screw; 403, hand crank; 404, conical head; 5, box; 501, limiting slot; 502, counterweight; 503, handle; 6, battery box; 601, control panel; 602, battery; 603, power cord; 604, connector; 7, connecting line; 701, plug. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of the present application.

[0026] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0027] Example 1

[0028] like Figures 1-6 As shown, a groundwater sampling device includes: a sampling box 1, an equipment box 101 installed on one side of the outer end of the sampling box 1, a connecting pipe 102 connected to the bottom of the equipment box 101, a tube 103 threadedly connected to the bottom of the connecting pipe 102, a filter bucket 104 installed at the bottom of the tube 103, a filter component arranged inside the sampling box 1, used for filtering mud impurities in the water, and a cleaning component arranged on the tube 103, used for cleaning impurities adhered to the outside of the filter bucket 104.

[0029] Among them, reference Figure 1 、 Figure 2 and Figure 6 A mobile base 4 is installed at the bottom of the sampling box 1, and limiting screw holes 401 are respectively provided on both sides of the top of the mobile base 4. The internal thread of the limiting screw hole 401 is connected with a screw rod 402, a hand crank block 403 is installed on the top of the screw rod 402, and a conical head 404 is welded to the bottom of the screw rod 402.

[0030] When the sampling box 1 is in use, since moving wheels are installed on all four sides of the bottom of the mobile base 4, the sampling box 1 can be moved to the side of the sampling area, and the hand crank 403 can be grasped by hand to rotate the screw 402 clockwise to make the screw 402 rotate inside the limiting screw hole 401, that is, the screw 402 drives the conical head 404 to move downward and contact the ground. The screw 402 is continuously rotated to make the conical head 404 rotate into the soil layer, reinforcing the mobile base 4 to avoid movement during sampling.

[0031] Among them, reference Figures 1-4 A water pump 105 is installed inside the equipment box 101, a water pumping pipe 106 is installed on one side of the outer end of the water pump 105, a drainage pipe 107 is installed on one side of the top of the water pump 105, a sampling tube 108 is installed inside the tube 103, and a pipe joint 109 connected to the water pumping pipe 106 is provided on the top of the sampling tube 108.

[0032] After the mobile base 4 is fixed in place, the inner wall of its connecting pipe 102 is provided with an internal thread layer, and the outer side of the top of the tube 103 is provided with an external thread layer. The tube 103 is aligned with the connecting pipe 102, and the tube 103 is rotated to be threadedly connected with the connecting pipe 102 for installation and fixation. When the tube 103 is tightened, the pipe joint 109 at the top of the sampling tube 108 will be inserted into the water suction pipe 106 for connection, that is, after the tube 103 is placed in the water, the filter bucket 104 at its bottom will also be located in the water. At this time, the water pump 105 is started to work. Since the sampling tube 108, the water suction pipe 106 and the drain pipe 107 are connected, and one end of the drain pipe 107 passes through the sampling box 1 and is inserted into the filter tank 2, the water pump 105 generates negative pressure suction, and the sampling tube 108 sucks water into the water suction pipe 106, and discharges it into the filter tank 2 through the drain pipe 107, thereby completing the water sampling.

[0033] Among them, reference Figure 2-Figure 3 The filtering component includes: a water filter trough 2 arranged at the top of the sampling box 1, with support plates 201 on both sides of the inner wall of the water filter trough 2, a socket 202 opened on the outside of the sampling box 1 and aligned with the support plate 201, and the inner ring of the socket 202 is provided with a sealing ring, a coarse filter core plate 203 arranged inside the socket 202, a fine filter core plate 204 is provided at the bottom of the coarse filter core plate 203, an outlet hose 205 is provided in the middle of the bottom end of the water filter trough 2, and a sampling bottle 206 is provided at the bottom of the water outlet hose 205.

[0034] When the water filter 2 is in use, the sampling bottle 206 is placed at the water outlet hose 205. After the sampled water enters the water filter 2, the water will first flow to the coarse filter plate 203, and the particulate impurities in the water will be preliminarily filtered through the coarse filter plate 203. The water falling from the coarse filter plate 203 will flow to the fine filter plate 204, and the mud in the water can be filtered cleanly through the fine filter plate 204, ensuring that the collected water sample is clean. The water falling from the fine filter plate 204 will flow to the water outlet hose 205 and be discharged into the sampling bottle 206, thereby obtaining a clean water sample. The sampled water can be directly tested, reducing the operation of filtration before testing, thereby reducing the testing workload and improving the efficiency of water sample testing.

[0035] When the coarse filter element plate 203 and the fine filter element plate 204 are in use, the coarse filter element plate 203 and the fine filter element plate 204 are respectively inserted into the water filter tank 2 from the socket 202, and supported and placed by the support plates 201 on both sides of the inner wall of the water filter tank 2. After the coarse filter element plate 203 and the fine filter element plate 204 are inserted into the socket 202, they will fit tightly with the sealing ring of the inner circle of the socket 202 to prevent the water in the water filter tank 2 from flowing out. When the coarse filter element plate 203 and the fine filter element plate 204 need to be cleaned, they can be directly pulled out from the socket 202.

[0036] Among them, reference Figure 1 、 Figure 2 and Figure 6A box body 5 is installed on one side of the limiting screw hole 401, and a plurality of limiting grooves 501 are opened inside the box body 5. A counterweight block 502 is provided inside the plurality of limiting grooves 501, and a handle 503 is installed on the top of the counterweight block 502.

[0037] During the use of the mobile base 4, since the equipment box 101 and the tube 103 are installed at one end of the sampling box 1, the counterweight block 502 can be lifted by the handle 503 and placed into the limit groove 501 to counterweight the other end of the mobile base 4, so that the forces at both ends of the mobile base 4 are balanced, thereby improving the safety during the sampling process.

[0038] Example 2

[0039] Based on Example 1, Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The cleaning assembly includes: a fixed head 3 installed on the tube 103, micro cylinders 301 installed on both sides of the bottom end of the fixed head 3, a telescopic rod 302 connected to the bottom of the micro cylinder 301, a circular cleaning block 303 installed at the bottom of the telescopic rod 302, and the cleaning block 303 is located outside the filter bucket 104, and multiple scrapers 304 are installed on the inner circle of the cleaning block 303, and the multiple scrapers 304 are tightly fitted with the outer wall of the filter bucket 104.

[0040] When the filter bucket 104 is put into water for use, the filter bucket 104 can prevent large impurities in the water from being sucked into the sampling tube 108, thereby preventing the sampling tube 108 from being blocked. When it is found that the water inflow into the drain pipe 107 is small, it means that large impurities are adsorbed on the outside of the filter bucket 104, affecting the water inflow. At this time, the micro cylinder 301 is started to work, and the micro cylinder 301 drives the telescopic rod 302 to move up and down. The telescopic rod 302 pushes the cleaning block 303 to move up and down outside the filter bucket 104, and the scraper 304 on the inner circle of the cleaning block 303 fits tightly with the outer wall of the filter bucket 104. The adsorbed impurities can be removed by the scraper 304, so that water can flow into the filter bucket 104, allowing the sampling tube 108 to inhale and take samples. There is no need to disassemble the tube 103 to clean the filter bucket 104, thereby avoiding the sampling work being affected by the small amount of water absorbed by the sampling tube 108.

[0041] Among them, reference Figure 1 、 Figure 2 and Figure 4, a battery box 6 is installed on the top of the equipment box 101, a control panel 601 is installed on the outside of the battery box 6, a battery 602 is installed inside the battery box 6, the outer end of the battery 602 is connected to a power line 603, a connector 604 is installed on the power line 603, a connecting line 7 is provided on the outside of the micro cylinder 301, and a plug 701 used in conjunction with the connector 604 is installed on one end of the connecting line 7. When the water pump 105 and the micro cylinder 301 are in use, the water pump 105 is connected to the battery box 6 and the control panel 601 through the wire, and the tube 103 is installed behind the connecting tube 102, connecting the outer side of the micro cylinder 301 to the The plug 701 of the connection 7 is inserted into the connector 604 of the power cord 603, and the water pump 105, the micro cylinder 301 and the control panel 601 are powered by the battery 602. The water pump 105 and the micro cylinder 301 can be started and shut down by the control panel 601. The control panel 601 is provided with an up and down button, which can control the micro cylinder 301 to drive the telescopic rod 302 to move up and down. The control program involved in the present invention can be implemented by those skilled in the art according to the same or similar principles in the prior art. This part is not the innovation of the present invention.

[0042] Specific workflow:

[0043] When the sampling box 1 is in use, since the four sides of the bottom of the mobile base 4 are equipped with moving wheels, the sampling box 1 can be moved to the side of the sampling area, the tube 103 is aligned with the connecting pipe 102, and the tube 103 is rotated to be threadedly connected with the connecting pipe 102 for installation and fixation. When the tube 103 is tightened, the pipe joint 109 at the top of the sampling tube 108 will be inserted into the water suction pipe 106 for connection, that is, after the tube 103 is put into the water, the filter bucket 104 at its bottom will also be located in the water. At this time, the water pump 105 is started to work. Since the sampling tube 108, the water suction pipe 106 and the drain pipe 107 are connected, and the drain pipe 107 is connected The end passes through the sampling box 1 and is inserted into the water filter trough 2. The water pump 105 generates negative pressure suction. The sampling tube 108 sucks water into the suction pipe 106 and discharges it into the water filter trough 2 through the drain pipe 107. The water will first flow to the coarse filter plate 203, and the particulate impurities in the water will be preliminarily filtered through the coarse filter plate 203. The water falling from the coarse filter plate 203 will flow to the fine filter plate 204, and the mud in the water can be filtered cleanly through the fine filter plate 204, ensuring that the collected water sample is clean. The water falling from the fine filter plate 204 will flow to the water outlet hose 205 and be discharged into the sampling bottle 206, thereby obtaining a clean water sample.

[0044] When it is found that the water inflow of the drain pipe 107 is small, it means that large impurities are adsorbed on the outside of the filter bucket 104, which affects the water inflow. At this time, the micro cylinder 301 is started to work, and the micro cylinder 301 drives the telescopic rod 302 to move up and down. The telescopic rod 302 pushes the cleaning block 303 to move up and down outside the filter bucket 104, and the scraper 304 on the inner circle of the cleaning block 303 fits tightly with the outer wall of the filter bucket 104. The scraper 304 can remove the adsorbed impurities, so that water can flow into the filter bucket 104, allowing the sampling tube 108 to inhale and take samples.

[0045] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0046] The above is a detailed introduction to a groundwater sampling device provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents, and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A groundwater sampling device, characterized in that: include: Sampling box (1); An equipment box (101) installed on one side of the outer end of the sampling box (1); A connecting pipe (102) connected to the bottom of the equipment box (101); A tube (103) threadedly connected to the bottom of the connecting tube (102); A filter hopper (104) installed at the bottom of the tube (103); A filter assembly disposed inside the sampling box (1) for filtering muddy impurities in water; The cleaning assembly provided on the tube (103) is used to clean impurities adhering to the outside of the filter bucket (104).

2. The groundwater sampling device according to claim 1, characterized in that The filter assembly comprises: A water filter tank (2) is provided at the top of the sampling box (1), and support plates (201) are provided on both sides of the inner wall of the water filter tank (2); A socket (202) is provided on the outside of the sampling box (1) and is aligned with the support plate (201), and a sealing ring is provided on the inner ring of the socket (202); A coarse filter core plate (203) is arranged inside the socket (202), and a fine filter core plate (204) is provided at the bottom of the coarse filter core plate (203); A water outlet hose (205) is arranged at the middle of the bottom end of the water filter tank (2), and a sampling bottle (206) is provided at the bottom of the water outlet hose (205).

3. The groundwater sampling device according to claim 1, characterized in that The cleaning component includes: A fixed head (3) mounted on the tube (103); Micro cylinders (301) installed on both sides of the bottom end of the fixed head (3); A telescopic rod (302) is connected to the bottom of the micro cylinder (301), a cleaning block (303) with a circular structure is installed at the bottom of the telescopic rod (302), and the cleaning block (303) is located outside the filter bucket (104); A plurality of scrapers (304) are installed on the inner circle of the cleaning block (303), and the plurality of scrapers (304) are closely fitted to the outer wall of the filter bucket (104).

4. The groundwater sampling device according to claim 1, characterized in that A water pump (105) is installed inside the equipment box (101), a water extraction pipe (106) is installed on one side of the outer end of the water pump (105), a drainage pipe (107) is installed on one side of the top of the water pump (105), a sampling pipe (108) is installed inside the tube (103), and a pipe joint (109) connected to the water extraction pipe (106) is provided on the top of the sampling pipe (108).

5. The groundwater sampling device according to claim 1, characterized in that: A movable base (4) is installed at the bottom of the sampling box (1), and limiting screw holes (401) are respectively provided on both sides of the top of the movable base (4). A screw rod (402) is threadedly connected to the inner surface of the limiting screw hole (401), a hand crank block (403) is installed on the top of the screw rod (402), and a conical head (404) is welded to the bottom end of the screw rod (402).

6. The groundwater sampling device according to claim 5, characterized in that: A box body (5) is installed on one side of the limiting screw hole (401), and a plurality of limiting grooves (501) are provided inside the box body (5). A counterweight block (502) is provided inside each of the plurality of limiting grooves (501), and a handle (503) is installed on the top of the counterweight block (502).

7. The groundwater sampling device according to claim 3, characterized in that: A battery box (6) is installed on the top of the equipment box (101), a control panel (601) is installed on the outside of the battery box (6), a battery (602) is installed inside the battery box (6), the outer end of the battery (602) is connected to a power line (603), a connector (604) is installed on the power line (603), a connecting line (7) is provided on the outside of the micro cylinder (301), and a plug (701) for use with the connector (604) is installed at one end of the connecting line (7).

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