A real-time monitoring device for borehole groundwater quality

Abstract

The present invention relates to the field of groundwater quality monitoring technology, specifically a real-time monitoring device for borehole groundwater quality, comprising a top sealing cylinder installed on the top of a well, a plurality of automatic winches for hoisting and sealing mechanisms, a plurality of sealing mechanisms for sealing the space in the well to form different barriers, and a sampling mechanism for sampling, wherein the inner wall of the top sealing cylinder is fixedly sleeved with a mounting plate. In the present invention, by installing the top sealing cylinder at the wellhead, and then activating a plurality of sealing mechanisms to seal various parts of the well, a barrier is formed between two adjacent sealing mechanisms, and then a sampling mechanism is used to extract water samples from the water flow at various parts of each barrier, and then the water samples are tested to obtain water quality results, so that different barriers can be set according to the depth change of the aquifer to align with the aquifer after the depth change, and the sampling mechanism is used to sample the water flow at various parts of each barrier, and the space occupied is small, and there is no need to build an isolation layer, which reduces the construction difficulty.

Description

Technical Field

[0001] The invention relates to the technical field of groundwater quality monitoring, in particular to a device for real-time monitoring of borehole groundwater quality. Background Art

[0002] When conducting groundwater quality testing, groundwater quality monitoring wells are usually built for the convenience of monitoring. When building monitoring wells, drilling is usually carried out to allow the underground hole to pass through the underground aquifer, and then the well pipe is sent into the hole, and a sealing tube is installed at the wellhead to form a monitoring well. The well pipe used in the monitoring well includes a watertight sealing pipe and a water-permeable filter pipe, so that the water flow in the aquifer can be filtered through the filter pipe to remove solid impurities and then flow into the well, and then the water quality can be obtained by sampling and testing in the well. There are many types of existing groundwater monitoring wells, including single-tube single-layer, Single-tube multi-layer, nested or cluster structure, however, a single-tube single-layer monitoring well installs a single well pipe in a borehole to monitor a single target aquifer. If too many aquifers are penetrated, the water flows in different aquifers will be mixed together; a single-tube multi-layer monitoring well installs a single well pipe in a borehole to monitor two or more target aquifers at different depths. However, it is necessary to set up barriers between different aquifers, and precise construction technology is required to ensure the effectiveness of the barrier layer and the verticality of the well pipe. The construction is difficult, and the construction cost and maintenance cost of multi-layer monitoring wells are usually Higher; nested detection wells install multiple well pipes of different lengths in one borehole to monitor two or more target aquifers at different depths, which makes pipe laying inconvenient and construction difficult; and multiple monitoring wells of different depths are drilled near the monitoring point (site, area), each monitoring well monitors a target aquifer at a different depth, which occupies a large area and is more complicated to construct; among the existing groundwater monitoring wells, single-tube multi-layer monitoring wells have the advantages of small footprint and the ability to monitor aquifers at different depths, but it is necessary to set up an isolation layer between aquifers at different depths and ensure The effectiveness of the isolation layer is difficult to construct, and the depth of the aquifer will change due to various reasons. The isolation layers in existing single-tube multi-layer monitoring wells are mostly fixed installations. After the depth of the aquifer changes, the well needs to be abandoned and a new well needs to be opened, which is inconvenient. In addition, there may be multiple water sources in the aquifer at the same depth, which may be mixed with other substances and need to be sampled for testing. These mixed substances may be distributed at different heights in the same layer of the monitoring well due to their own density and other characteristics. Generally, it is difficult to extract water samples at different depths in a single aquifer in a single-tube multi-layer monitoring well, which is inconvenient. Summary of the Invention

[0003] The purpose of the present invention is to provide a real-time monitoring device for borehole groundwater quality to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A real-time monitoring device for borehole groundwater quality, comprising:

[0006] A top sealing cylinder installed on the top of the well, multiple automatic winches for lifting the sealing mechanism, multiple sealing mechanisms for sealing the space in the well to form different compartments and a sampling mechanism for sampling, a mounting plate fixedly sleeved on the inner wall of the top sealing cylinder, multiple automatic winches installed on the outer wall of the top sealing cylinder, multiple sealing mechanisms are all located below the top sealing cylinder, and multiple sealing mechanisms are arranged vertically in sequence, the sealing mechanism includes a top plate and a bottom plate, and an annular airbag is fixedly connected between the top plate and the bottom plate, the top surface of the top plate on the uppermost sealing mechanism is fixedly connected to multiple hooks, and the sampling mechanism is located between the sealing mechanisms.

[0007] Furthermore, multiple sliding grooves are provided on the bottom surface of the base plate, and two support rods are provided at one end of any sliding groove, the middle part of each support rod is rotatably connected to the bottom surface of the base plate, sliders are slidably connected inside the multiple sliding grooves, and one end of the bottom surface of any slider is fixedly connected to a connecting frame, and one end of the two support rods at one end of any sliding groove is slidably connected to the inside of the adjacent connecting frame.

[0008] Furthermore, a sleeve hole is provided on the top surface of the top plate, a sliding rod is fixedly connected to the center of the top surface of the bottom plate, and the sliding rod is slidably sleeved inside the sleeve hole, a collar is fixedly connected to the bottom surface of the top plate, and the inner wall of the collar is slidably sleeved with the outer wall of the sliding rod, a plurality of rotating rods are rotatably connected to the outer wall of the collar, and the plurality of rotating rods correspond one-to-one to the plurality of sliders, and one end of any rotating rod is rotatably connected to the top surface of the corresponding slider.

[0009] Furthermore, a scissor lift is provided below each blocking mechanism, the top of each scissor lift is fixedly connected to the bottom surface of the bottom plate on the blocking mechanism above, and the bottom end is fixedly connected to the top surface of the top plate on the blocking mechanism below.

[0010] Furthermore, the top surface of any slider is located above the adjacent bottom plate, and the length and width of the top surface of any slider are greater than the length and width of the bottom surface.

[0011] Further, the sampling mechanism includes:

[0012] A rubber tube, a movable plate and a plastic tube for sampling, the top of the rubber tube is fixedly connected to the mounting plate, two conductive rods are arranged inside the rubber tube, rubber strips are fixedly connected between the outer side walls of the two conductive rods and the inner side walls of the rubber tube, and the two conductive rods are arranged diagonally with the central axis of the rubber tube as the center, the rubber tube includes a plurality of straight portions and a plurality of spiral portions, and the plurality of straight portions and the plurality of spiral portions correspond to a plurality of blocking mechanisms one by one, the plurality of spiral portions are located below the corresponding blocking mechanisms, and the plurality of straight portions pass through the top plate and the bottom plate on the adjacent blocking mechanisms, the outer side walls of the plurality of straight portions are fixedly connected to the adjacent top plate and the bottom plate, the rubber tube is provided with two movable rods inside. The movable part includes two plates, and the two plates are symmetrically arranged, and the two plates are both U-shaped. Any rubber strip is slidably clamped between the two adjacent plates. A plurality of wheels are rotatably connected between the two plates, and any wheels are in contact with adjacent conductive rods. The movable plate is located between the two movable parts, and both ends of the movable plate are rotatably connected to support arms, and the two support arms are rotatably connected to a plate on the two movable parts respectively. A threaded hole is provided on the top surface of the movable plate, and a silicone tube is fixedly connected to the top of the plastic tube, and the interior of the silicone tube is connected to the interior of the plastic tube. A thread is provided on the outer wall of the plastic tube, and the outer wall of the plastic tube is screwed into the threaded hole. The bottom end of the plastic tube is connected to a needle.

[0013] Furthermore, the top surface of the other plate on the two moving parts is fixedly connected to a driving box, a driving motor is provided inside each driving box, and each driving motor is fixedly connected to one end of the wheel axle of the adjacent wheel.

[0014] The invention further comprises: a fixing plate is fixedly connected to the bottom end of the scissor lift located at the bottom, and the bottom end of the rubber tube is fixedly connected to the top surface of the fixing plate.

[0015] Furthermore, a rail is provided between the two moving parts, one end of the rail is fixedly connected to the top surface of another plate on one moving part, and the top surface of another plate on the other moving part is fixedly connected to a limit frame, the other end of the rail is slidably sleeved inside the limit frame, and a block is slidably sleeved inside the rail, a circular hole is opened on the top surface of the block, a guide rod is fixedly connected to one side of the moving plate, and the guide rod is slidably sleeved inside the circular hole.

[0016] Furthermore, one adjacent end of the other plate body on the two moving parts is fixedly connected with a pressing plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By installing the top sealing cylinder at the wellhead, and then starting multiple sealing mechanisms to seal various parts of the well, a barrier is formed between two adjacent sealing mechanisms, and each barrier corresponds to an aquifer of different depths. Then, water is pumped from each barrier to make the water flow from the aquifer of different depths flow into the adjacent barrier. Then, a sampling mechanism is used to extract water samples from the water flow at various locations in each barrier, and the water samples are tested to obtain water quality results. In this way, different barrier layers can be set according to the change in the depth of the aquifer to align with the aquifer after the depth change, and the sampling mechanism is used to sample the water flow at various locations in each barrier. In addition, the space occupied is small, there is no need to build an isolation layer, and the construction difficulty is reduced.

[0019] 2. By using an automatic winch to control the height of multiple blocking mechanisms, and then using an air compressor and a hose to drive the pneumatic push rods on each scissor lift to control the scissor lift to rise and fall, thereby controlling the distance between two adjacent blocking mechanisms, and then using an air compressor and a conduit to inject air into each annular airbag, causing the annular airbag on each blocking mechanism to expand and abut against the well wall, thereby blocking the wellbore, forming a barrier between the two blocking mechanisms, and the two adjacent barriers are blocked by the blocking mechanism. Then, using a water pump and a water pipe to pump water into each barrier, the water flow from the aquifer corresponding to each barrier flows into each barrier;

[0020] 3. When the annular airbag expands, it pushes the adjacent top plate upward, causing the top plate to pull the adjacent collar upward, so that the collar drives the adjacent slider and the connecting frame to move synchronously toward the collar through the adjacent rotating rod, so that the connecting frame pulls the adjacent two supporting rods to rotate one end toward each other and the other end away from each other, so that the supporting rods contact the well wall, further fixing the position of the plugging mechanism;

[0021] 4. Screw the plastic tube into the threaded hole, and clamp the upper plates of the two moving parts on the two conductive rods, start the two driving motors to drive the adjacent wheels to rotate, thereby driving the two moving parts to move along the two conductive rods inside the rubber tube. When sampling is needed, start a driving motor to move one moving part and the other moving part is fixed due to the friction between the wheels and the adjacent conductive rods, so that the two moving parts are close to each other, and the friction moving plate moves, so that the moving plate drives the needle on the plastic tube to pierce the rubber tube. At the same time, the two pressure plates squeeze the silicone tube to discharge the internal air, and then control one moving part to reset, reset the moving plate, and separate the two pressure plates from the silicone tube. When resetting, the silicone tube automatically recovers due to its own characteristics and draws external water into the plastic tube, and the place where the rubber tube is pierced by the needle will also be automatically sealed due to the elasticity of the rubber tube, making it difficult for external water to enter the inside of the rubber tube, and then the plastic tube is driven to move to the top sealing cylinder through the movement of the moving part to obtain a water sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the top sealing structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the positional relationship between the blocking mechanism and the sampling mechanism in the present invention;

[0025] Figure 4 It is a schematic structural diagram of the blocking mechanism in the present invention;

[0026] Figure 5 This is an exploded view of the structure between the top plate and the bottom plate in the present invention;

[0027] Figure 6 This is a schematic diagram of the positional relationship between the slider and the stop rod in the present invention;

[0028] Figure 7 It is a schematic structural diagram of the sampling mechanism in the present invention;

[0029] Figure 8 This is a schematic structural diagram of the plastic tube and the moving part of the present invention;

[0030] Figure 9 It is an exploded diagram of the sampling mechanism structure of the present invention.

[0031] In the figure: 100, top sealing tube; 110, mounting plate; 200, automatic winch; 210, hook; 300, blocking mechanism; 310, top plate; 311, sleeve hole; 320, bottom plate; 321, slide bar; 322, slide groove; 323, stop bar; 330, annular airbag; 340, scissor lift; 341, fixing plate; 350, slide block; 351, connecting frame; 360 , ring; 361, rotating rod; 400, sampling mechanism; 410, rubber tube; 411, conductive rod; 412, rubber strip; 420, plate body; 421, wheel; 422, drive box; 423, limit frame; 424, pressure plate; 430, movable plate; 431, support arm; 432, guide rod; 440, plastic tube; 441, silicone tube; 450, rail; 451, block. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-9 In an embodiment of the present invention, a device for real-time monitoring of borehole groundwater quality includes:

[0034] A top sealing cylinder 100 is installed on the top of the well, multiple automatic winches 200 for lifting the sealing mechanism 300, multiple sealing mechanisms 300 for sealing the space in the well to form different compartments, and a sampling mechanism 400 for sampling. The inner wall of the top sealing cylinder 100 is fixedly sleeved with a mounting plate 110, multiple automatic winches 200 are installed on the outer wall of the top sealing cylinder 100, multiple sealing mechanisms 300 are all located below the top sealing cylinder 100, and multiple sealing mechanisms 300 are arranged vertically in sequence. The sealing mechanism 300 includes a top plate 310 and a bottom plate 320, and an annular airbag 330 is fixedly connected between the top plate 310 and the bottom plate 320. Multiple hooks 210 are fixedly connected to the top surface of the top plate 310 located on the uppermost sealing mechanism 300, and the sampling mechanism 400 is located between the sealing mechanisms 300.

[0035] Specifically, a well is drilled and a water filter pipe and a sealing pipe are arranged in the well to form an environmental monitoring well. The water filter pipe and the sealing pipe are arranged in an alternating manner. Both the water filter pipe and the sealing pipe are short pipes, so that water flows into the monitoring well. Then, a top sealing cylinder 100 is installed at the wellhead to seal the wellhead, and multiple sealing mechanisms 300 are placed in the well. When the user takes samples, the multiple sealing mechanisms 300 can be lifted to a suitable position by the automatic winch 200, and then the multiple sealing mechanisms 300 are started to form a closed interlayer between two adjacent sealing mechanisms 300. The spacing between the two adjacent sealing mechanisms 300 can be adjusted to adjust the height of each interlayer so that each The interlayers are aligned with aquifers of different depths. When the depth of the groundwater aquifer changes, each interlayer can adapt to the change in the depth of the aquifer. Then the water in each aquifer flows through the filtered water pipe into the different interlayers. The sampling mechanism 400 is used to sample the water flow inside the different interlayers, and the obtained water samples are tested to obtain the water quality conditions in the aquifers of different depths. In addition, the space occupied is small, and there is no need to build an isolation layer, which reduces the construction difficulty. When the blocking mechanism 300 is used, the hook 210 on the uppermost blocking mechanism 300 can be connected to the rope on the automatic winch 200, and then the automatic winch 200 is started to control the height of the uppermost blocking mechanism 300. Any blocking mechanism 3 00 are all connected with a conduit, and the conduit on any annular airbag 330 passes through the top plate 310 and the bottom plate 320 of the upper blocking mechanism 300 in sequence, and then the top end of the conduit is fixed to the mounting plate 110 by using a connector, and the top plate 310 and the bottom plate 320 of the blocking mechanism 300 passed by the conduit are bonded with glue to prevent water leakage, and the conduits between two adjacent blocking mechanisms 300 are left with margins, and then compressed air is injected into the conduit by using an air compressor, so that the annular airbag 330 corresponding to the conduit can be expanded, fixed in the well and blocked, and each top plate 310 of the blocking mechanism 300 is fixed in the well and blocks the well. There are water pumping pipes fixed at each location. Any water pumping pipe can pass through the top plate 310 and the bottom plate 320 on the upper sealing mechanism 300 in sequence, and any top plate 310 and the bottom plate 320 are bonded and waterproofed with the water pumping pipes passed through by glue. There is a margin in the water pumping pipes between two adjacent sealing mechanisms 300. After each sealing mechanism 300 blocks the wellbore to form a barrier at different positions, the original water flow in the different barriers can be pumped away by using a water pump and a water pumping pipe, so that the water from the aquifer corresponding to the barrier flows into the barrier, and then the sampling mechanism 400 is used to sample the water flow newly entering the barrier. The water pump, air compressor, conduit, and water pumping pipe are all existing technologies and will not be described here. Example 1

[0036] like Figure 5-6As shown, in this embodiment, a plurality of sliding grooves 322 are provided on the bottom surface of the bottom plate 320, and two push rods 323 are provided at one end of any sliding groove 322. The middle part of any push rod 323 is rotatably connected to the bottom surface of the bottom plate 320. Slide blocks 350 are slidably connected inside the plurality of sliding grooves 322, and one end of the bottom surface of any slider 350 is fixedly connected to a connecting frame 351. One end of the two push rods 323 at one end of any sliding groove 322 is slidably connected to the inside of the adjacent connecting frame 351. A sleeve hole 311 is provided on the top surface of the top plate 310, and the center of the top surface of the bottom plate 320 is fixedly connected It is connected to a sliding rod 321, and the sliding rod 321 is slidably sleeved inside the sleeve hole 311. The bottom surface of the top plate 310 is fixedly connected to a ring 360, and the inner wall of the ring 360 is slidably sleeved with the outer wall of the sliding rod 321. The outer wall of the ring 360 is rotatably connected to multiple rotating rods 361, and the multiple rotating rods 361 correspond one-to-one to the multiple sliders 350. One end of any rotating rod 361 is rotatably connected to the top surface of the corresponding slider 350. The top surface of any slider 350 is located above the adjacent bottom plate 320. The length and width of the top surface of any slider 350 are greater than the length and width of the bottom surface.

[0037] When the annular airbag 330 is expanded, the annular airbag 330 is stuck inside the well to block the well. At the same time, when the annular airbag 330 expands, it pushes the adjacent top plate 310 to move upward, so that the top plate 310 drives the collar 360 to move upward synchronously, so that the collar 360 pulls the adjacent sliders 350 and the connecting frame 351 to move synchronously toward the collar 360 through the multiple rotating rods 361, so that the multiple connecting frames 351 pull the adjacent two supporting rods 323 to rotate toward each other and the other ends away from each other, so that the other ends of the multiple supporting rods 323 contact the well wall, fixing the blocking mechanism 300. It is not easy for water to enter the space between the top plate 310 and the bottom plate 320 from the collar 360, and the top surface of the slider 350 is relatively wide, which can completely block the slide groove 322 to prevent water from entering the space between the top plate 310 and the bottom plate 320.

[0038] like Figure 3 and Figure 6 As shown, in this embodiment, a scissor lift 340 is provided below any blocking mechanism 300, and the top end of any scissor lift 340 is fixedly connected to the bottom surface of the bottom plate 320 on the blocking mechanism 300 above, and the bottom end is fixedly connected to the top surface of the top plate 310 on the blocking mechanism 300 below.

[0039] During specific implementation, the scissor lift 340 is driven by a pneumatic push rod, and a hose is connected to the pneumatic push rod. The hose passes through the top plate 310 and the bottom plate 320 of the upper sealing mechanism 300 in sequence, and the hose should be bonded and fixed to the top plate 310 and the bottom plate 320 through which it passes by using glue to prevent water from flowing into the space between the top plate 310 and the bottom plate 320 through the gap. The top end of the hose is fixed on the mounting plate 110. When in use, an air compressor can be used to inject compressed air into the pneumatic push rod to drive the pneumatic push rod to control the lifting and lowering of the scissor lift 340, thereby controlling the distance between two adjacent sealing mechanisms 300, thereby controlling the size of each compartment.

[0040] like Figure 7-9 As shown, in this embodiment, the sampling mechanism 400 includes:

[0041] The rubber tube 410, the movable plate 430 and the plastic tube 440 for sampling, the top end of the rubber tube 410 is fixedly connected to the mounting plate 110, two conductive rods 411 are arranged inside the rubber tube 410, and rubber strips 412 are fixedly connected between the outer walls of the two conductive rods 411 and the inner walls of the rubber tube 410, and the two conductive rods 411 are arranged diagonally with the central axis of the rubber tube 410 as the center, the rubber tube 410 includes a plurality of straight portions and a plurality of spiral portions, and the plurality of straight portions and the plurality of spiral portions correspond one-to-one to the plurality of blocking mechanisms 300, the plurality of spiral portions are located below the corresponding blocking mechanisms 300, and the plurality of straight portions pass through the top plate 310 and the bottom plate 320 on the adjacent blocking mechanisms 300, the outer walls of the plurality of straight portions are fixedly connected to the adjacent top plate 310 and the bottom plate 320, and two movable portions are arranged inside the rubber tube 410, the movable portion includes two plate bodies 420, and the two plate bodies 420 are symmetrically arranged The two plates 420 are both U-shaped, and any rubber strip 412 is slidably connected between two adjacent plates 420. A plurality of wheels 421 are rotatably connected between the two plates 420, and any wheel 421 contacts the adjacent conductive rod 411. The movable plate 430 is located between the two movable parts, and both ends of the movable plate 430 are rotatably connected to support arms 431, and the two support arms 431 are rotatably connected to a plate 420 on the two movable parts respectively. A threaded hole is provided on the top surface of the movable plate 430, and a silicone tube 441 is fixedly connected to the top of the plastic tube 440, and the interior of the silicone tube 441 is connected to the interior of the plastic tube 440. A thread is provided on the outer wall of the plastic tube 440, and the outer wall of the plastic tube 440 is screwed into the threaded hole. The bottom end of the plastic tube 440 is connected to a needle, and the bottom end of the scissor lift 340 at the bottom is fixedly connected to the fixed plate 341, and the bottom end of the rubber tube 410 is fixedly connected to the top surface of the fixed plate 341.

[0042] During specific implementation, the two conductive rods 411 can be energized, and the wheels 421 in any moving part are in two rows, and the two rows of wheels 421 are in contact with the two conductive rods 411 respectively. Any rubber strip 412 is stuck between the adjacent arms of the two plates 420 of the same moving part, so that the plate 420 is not easy to separate from the two conductive rods 411. After the multiple blocking mechanisms 300 are fixed in position to form different compartments, the spiral parts of the rubber tube 410 between the two adjacent blocking mechanisms 300 are coiled inside different compartments. The user can screw the plastic tube 440 into the threaded hole, and then drive the two moving parts to move synchronously along the two conductive rods 411 to various places in the rubber tube 410. When sampling is needed, any moving part can be started to move, and the other moving part can be started to move. The upper wheel 421 does not rotate, thereby fixing the position, so that the two moving parts are close to each other, so that the support arm 431 contacts the moving plate 430 and the plastic tube 440 to move, so that the needle on the plastic tube 440 pierces the thicker rubber tube 410 to suck the external liquid, and then after the two moving parts are reset, the moving plate 430 and the needle can be pulled to reset, and the rubber tube 410 is thicker and naturally closes the smaller needle hole due to its own elasticity, preventing water from entering the inside of the rubber tube 410, and then the plastic tube 440 is transported to the top sealing cylinder 100 through the movement of the moving part, and the user presses the silicone tube 441 to squeeze out the water sample for testing, so that the water flow at different positions of each compartment can be sampled, and the bottom end of the rubber tube 410 can be closed by the fixed plate 341.

[0043] like Figure 7-9 As shown, in this embodiment, the top surface of the other plate body 420 on the two moving parts is fixedly connected to a drive box 422, and a drive motor is provided inside any drive box 422. Any drive motor is fixedly connected to one end of the axle of the adjacent wheel 421, and the adjacent end of the other plate body 420 on the two moving parts is fixedly connected to a pressure plate 424.

[0044] In a specific implementation, sensors can be set on the two moving parts to detect the specific position of the moving parts, the two conductive rods 411 can be energized to supply power to the drive box 422, and a motor controller and a remote control device can be set in the drive box 422 to control the opening and closing of the drive motor, so that the two moving parts can be controlled to move synchronously, and when the drive motor is not started, the wheel 421 is stationary and contacts the conductive rod 411 to fix the position. The motor controller, sensor, remote control device, etc. are all existing technologies and will not be repeated here. , the other moving part does not move, so that the two moving parts are brought closer, so that the moving plate 430 drives the plastic tube 440 to move so that the needle pierces the rubber tube 410, and at the same time, the two pressing plates 424 can squeeze the silicone tube 441 and discharge the air inside the silicone tube 441 and the plastic tube 440. Then, when the two moving parts move away from each other and the moving plate 430 is pulled to reset, the two pressing plates 424 are separated from the silicone tube 441, and the silicone tube 441 automatically recovers due to its own elasticity and draws the external water flow into the plastic tube 440 and the silicone tube 441 through the needle. Example 2

[0045] On the basis of the first embodiment, by providing the rail 450 and the block 451 , the movable plate 430 is made more stable when moving.

[0046] like Figure 7-9 As shown, in this embodiment, a rail 450 is provided between the two moving parts, one end of the rail 450 is fixedly connected to the top surface of another plate body 420 on one moving part, and the top surface of another plate body 420 on the other moving part is fixedly connected to the limiting frame 423, and the other end of the rail 450 is slidably sleeved inside the limiting frame 423, and a block 451 is slidably sleeved inside the rail 450, and a circular hole is opened on the top surface of the block 451, and a guide rod 432 is fixedly connected to one side of the moving plate 430, and the guide rod 432 is slidably sleeved inside the circular hole.

[0047] In specific implementation, the two moving parts are kept parallel at all times by utilizing the rail 450. When the two moving parts approach each other, the rail 450 slides inside the limit frame 423, and the moving plate 430 can also rely on the guide rod 432 and the block 451 to limit its own moving trajectory when moving, to prevent the needle from tilting when piercing the rubber tube 410.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0049] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A real-time monitoring device for borehole groundwater quality, characterized in that: include: A top sealing cylinder (100) has an inner side wall fixedly sleeved with a mounting plate (110); A plurality of automatic winches (200) are installed on the outer side wall of the top sealing cylinder (100); A plurality of blocking mechanisms (300) are all located below the top sealing cylinder (100), and the plurality of blocking mechanisms (300) are arranged vertically in sequence, the blocking mechanisms (300) comprising a top plate (310) and a bottom plate (320), and an annular airbag (330) is fixedly connected between the top plate (310) and the bottom plate (320), and a plurality of hooks (210) are fixedly connected to the top surface of the top plate (310) located on the topmost blocking mechanism (300); A sampling mechanism (400) is located between the blocking mechanisms (300); The sampling mechanism (400) comprises: A rubber tube (410) having a top end fixedly connected to the mounting plate (110), two conductive rods (411) being provided inside the rubber tube (410), a rubber strip (412) being fixedly connected between the outer side walls of the two conductive rods (411) and the inner side wall of the rubber tube (410), and the two conductive rods (411) being arranged diagonally with the central axis of the rubber tube (410) as the center, the rubber tube (410) comprising a plurality of straight portions and a plurality of spiral portions, and the plurality of straight portions and the plurality of spiral portions each corresponding to a plurality of blocking mechanisms (300), the plurality of spiral portions each being located below the corresponding blocking mechanism (300), and the plurality of straight portions each penetrating the top plate (310) and the bottom plate (320) on the adjacent blocking mechanism (300), the outer side walls of the plurality of straight portions each being fixedly connected to the adjacent top plate (310) and the bottom plate (320), and two movable portions being provided inside the rubber tube (410); The moving part includes two plates (420), and the two plates (420) are symmetrically arranged. The two plates (420) are both U-shaped. Any rubber strip (412) is slidably connected between two adjacent plates (420). A plurality of wheels (421) are rotatably connected between the two plates (420), and any wheel (421) is in contact with an adjacent conductive rod (411); A movable plate (430) is located between the two movable parts, and both ends of the movable plate (430) are rotatably connected to support arms (431), and the two support arms (431) are rotatably connected to a plate body (420) on the two movable parts respectively. A threaded hole is provided on the top surface of the movable plate (430); The plastic tube (440) has a top end fixedly connected to a silicone tube (441), and the interior of the silicone tube (441) is connected to the interior of the plastic tube (440). The outer wall of the plastic tube (440) is provided with a thread, and the outer wall of the plastic tube (440) is screwed into the interior of the threaded hole. The bottom end of the plastic tube (440) is connected to a needle.

2. The device for real-time monitoring of groundwater quality in a borehole according to claim 1, characterized in that: The bottom surface of the base plate (320) is provided with a plurality of slide grooves (322), and two supporting rods (323) are provided at one end of each slide groove (322), and the middle part of each supporting rod (323) is rotatably connected to the bottom surface of the base plate (320), and a slider (350) is slidably engaged inside the plurality of slide grooves (322), and one end of the bottom surface of each slider (350) is fixedly connected to a connecting frame (351), and one end of the two supporting rods (323) at one end of each slide groove (322) is slidably engaged inside the adjacent connecting frame (351).

3. The real-time monitoring device for borehole groundwater quality according to claim 2, characterized in that: The top surface of the top plate (310) is provided with a sleeve hole (311), the center of the top surface of the bottom plate (320) is fixedly connected to a slide rod (321), and the slide rod (321) is slidably sleeved inside the sleeve hole (311), the bottom surface of the top plate (310) is fixedly connected to a collar (360), and the inner side wall of the collar (360) is slidably sleeved with the outer side wall of the slide rod (321), the outer side wall of the collar (360) is rotatably connected to a plurality of rotating rods (361), and the plurality of rotating rods (361) correspond one to one with the plurality of sliders (350), and one end of any rotating rod (361) is rotatably connected to the top surface of the corresponding slider (350).

4. The device for real-time monitoring of groundwater quality in a borehole according to claim 1, characterized in that: A scissor lift (340) is provided below each blocking mechanism (300), and the top end of each scissor lift (340) is fixedly connected to the bottom surface of the bottom plate (320) on the blocking mechanism (300) above, and the bottom end of each scissor lift (340) is fixedly connected to the top surface of the top plate (310) on the blocking mechanism (300) below.

5. The real-time monitoring device for borehole groundwater quality according to claim 1, characterized in that: The top surface of any slider (350) is located above the adjacent bottom plate (320), and the length and width of the top surface of any slider (350) are greater than the length and width of the bottom surface.

6. The device for real-time monitoring of borehole groundwater quality according to claim 1, characterized in that: The top surface of the other plate body (420) on the two moving parts is fixedly connected to a driving box (422), and a driving motor is provided inside each driving box (422), and each driving motor is fixedly connected to one end of the wheel shaft of the adjacent wheel (421).

7. The device for real-time monitoring of borehole groundwater quality according to claim 4, characterized in that: The bottom end of the scissor lift (340) located at the bottom is fixedly connected to a fixing plate (341), and the bottom end of the rubber tube (410) is fixedly connected to the top surface of the fixing plate (341).

8. The device for real-time monitoring of borehole groundwater quality according to claim 1, characterized in that: A rail (450) is provided between the two moving parts, one end of the rail (450) is fixedly connected to the top surface of another plate body (420) on one moving part, and the top surface of another plate body (420) on the other moving part is fixedly connected to a limit frame (423), the other end of the rail (450) is slidably sleeved inside the limit frame (423), and a clamping block (451) is slidably clamped inside the rail (450), a circular hole is opened on the top surface of the clamping block (451), and a guide rod (432) is fixedly connected to one side of the moving plate (430), and the guide rod (432) is slidably sleeved inside the circular hole.

9. The device for real-time monitoring of borehole groundwater quality according to claim 1, characterized in that: Adjacent ends of the other plate bodies (420) on the two movable parts are both fixedly connected to a pressing plate (424).

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