A monitoring sampling device for shallow groundwater level and pollution monitoring

Abstract

The present invention discloses a monitoring sampling device for monitoring shallow groundwater level and pollution, comprising a monitoring platform constructed on the ground, a lifting mechanism installed in the monitoring platform, a collection storage mechanism, a central distribution mechanism, and a real-time monitoring mechanism; the collection storage mechanism comprises a cylindrical storage and receiving shell, a collection support column fixed in the storage and receiving shell, and a plurality of sample storage bottles installed on the collection support column; the device of the present invention can collect groundwater in batches multiple times deep underground, and properly store the collected water samples in corresponding sample storage bottles by using the central distribution mechanism, the intermediate conveying tank can intercept most of the silt, and prevent excessive silt mixed in the water sample from entering the sample storage bottle, and the auxiliary driving mechanism can be used to tow and convey the collection storage mechanism to a designated position for collecting water samples.

Description

Technical Field

[0001] The invention relates to the technical field of groundwater monitoring, and in particular to a monitoring sampling device for shallow groundwater level and pollution monitoring. Background Art

[0002] Shallow groundwater refers to aquifers within 60 meters below the surface. Due to its shallow burial depth, the water is easily polluted by sewage discharged from factories and pesticide residues in farmland without being filtered by deep rocks. Drinking shallow polluted groundwater will endanger health. Shallow groundwater is groundwater located in the first permeable layer and above the first impermeable layer in the geological structure. It is formed by atmospheric precipitation and surface runoff. It is shallowly buried, renews quickly, and has poor water quality. Both water quality and water quantity are affected by precipitation and runoff. Well water is a typical example.

[0003] The purpose of groundwater dynamic monitoring is to further identify and study hydrogeological conditions, especially groundwater recharge, runoff, and discharge conditions, to understand the dynamic laws of groundwater, and to provide a scientific basis for groundwater resource evaluation, scientific management, and the research and prevention of environmental geological problems. However, the method of collecting and transporting groundwater to the ground using long pipes may cause certain contamination to the original water samples. Summary of the invention

[0004] The object of the present invention is to provide a monitoring sampling device for monitoring the water level and pollution of shallow groundwater, which can collect groundwater in batches multiple times deep underground and store corresponding samples.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A monitoring sampling device for shallow groundwater level and pollution monitoring, comprising a monitoring platform built on the ground, a lifting mechanism installed in the monitoring platform, a collection and storage mechanism, a central distribution mechanism, and a real-time monitoring mechanism;

[0007] The monitoring platform includes a hardened base plate fixed on the ground, a monitoring room is fixedly installed on the top of the hardened base plate, a monitoring through hole leading to groundwater is drilled on the ground inside the monitoring room, and a protective pipe is fixed in the monitoring through hole;

[0008] The collection storage mechanism is slidably fitted in the protection tube, and the lifting mechanism is installed in the monitoring room. The lifting mechanism is used to transport the collection storage mechanism to the groundwater collection site through the protection tube and to lift the collection storage mechanism from the groundwater collection site to the ground; the collection storage mechanism includes a cylindrical storage and receiving shell, a collection support column fixed in the storage and receiving shell, and a plurality of sample storage bottles installed on the collection support column;

[0009] The collection support column is a hollow structure, and the central distribution mechanism includes a collection injection needle tube connected to the inside of the collection support column through a slide rail structure;

[0010] The side wall of the collection support column is provided with a plurality of needle tube through holes, and the axis of the needle tube through holes coincides with the axis of the bottle mouth of each sample storage bottle;

[0011] A pumping accommodating shell is fixedly provided at the lower end of the storage housing, and the pumping accommodating shell is a hollow structure. A first sampling delivery pump is fixedly provided inside the pumping accommodating shell, and the output end of the first sampling delivery pump is connected to the inside of the collection injection needle tube through a delivery tube;

[0012] The real-time monitoring mechanism includes a monitoring integrated cylinder fixed at the lower end of the pumping containment shell, the monitoring integrated cylinder has a plurality of monitoring containment through holes, and the monitoring containment through holes are respectively fixed with a temperature sensor, a flow rate sensor, a conductivity sensor, a pH sensor, an ORP sensor and a turbidity sensor.

[0013] Preferably, a hollow protective shell is fixed on the top of the monitoring room, and the lifting mechanism includes a lifting support column fixed on the top of the monitoring room and located in the protective shell, and a winding roller is rotatably provided on the lifting support column, and a cable is wound on the winding roller;

[0014] The lifting support column is a hollow structure that passes through from top to bottom. The side wall of the lifting support column is provided with a cable through hole that is connected to the inside thereof. A plurality of guide fixed pulleys are fixed in the protective shell and the lifting support column. One end of the cable extends through the cable through hole into the lifting support column under the guidance of the plurality of guide fixed pulleys and extends downward along the axis direction of the lifting support column.

[0015] A driven worm wheel is fixed on the winding roller, a first driving motor is fixed on the top of the monitoring room, a driving worm is fixed on the output shaft of the first driving motor, and the driving worm is meshingly connected with the driven worm wheel.

[0016] Preferably, a rotating support ring is provided in a sliding cooperation inside the storage storage shell, and the rotating support ring can slide along the axis direction of the storage storage shell, and a sample support rotating ring is provided on the rotating support ring for rotation cooperation, and a plurality of pairs of storage support plates are fixed on the top of the sample support rotating ring, and a plurality of storage bottle fixing cylinders are connected between each pair of storage support plates, and the bottle mouths of the sample storage bottles are fixedly installed in the storage bottle fixing cylinders, and the plurality of storage bottle fixing cylinders are evenly dispersed and arranged on the storage support plates along the axis direction of the storage storage shell;

[0017] The storage bottle fixing cylinder is a hollow structure that is connected along its own axis. A fixing cylinder support shaft is fixed to the outside of the storage bottle fixing cylinder. The fixing cylinder support shaft is rotatably connected to the storage support plate.

[0018] Two adjacent storage bottle fixing cylinders along the axial direction of the storage housing are connected via a linkage connecting rod, and both ends of the linkage connecting rod are connected to the storage bottle fixing cylinder via a movable hinge structure.

[0019] Note: Arranging multiple sample storage bottles in this way is helpful to save space and facilitates distributing water samples into various sample storage bottles.

[0020] Preferably, a positioning control ring is fixedly provided on the top of the plurality of pairs of storage support plates, and the positioning control ring has a T-shaped opening;

[0021] A positioning control rod is connected to the uppermost linkage connecting rod. The positioning control rod extends upward and passes through the T-shaped opening. A limiting small shaft is fixed on the positioning control rod.

[0022] Description: The positioning control rod can be linked to drive the linkage connecting rod to control the deflection of the storage bottle fixing tube. The limiting small shaft on the positioning control rod can be stuck on the lower side of the T-shaped opening to play a role in fixing the position.

[0023] Preferably, a magnetic fixing ring is provided inside the storage bottle fixing tube, and a magnetic matching ring is provided on the outside of the sample storage bottle at the bottle mouth. The magnetic matching ring and the magnetic fixing ring fix the sample storage bottle in the storage bottle fixing tube by magnetic fixing, and a rubber stopper is fixed in the bottle mouth of the sample storage bottle.

[0024] Description: The sample storage bottle is fixed in the storage bottle fixing cylinder by magnetic attraction, which is convenient for quickly removing the sample storage bottle from the storage bottle fixing cylinder, and also convenient for quickly assembling multiple sample storage bottles on the storage bottle fixing cylinder.

[0025] Preferably, a first track is fixed to the inner side wall of the collection support column, the first track is extended along the axis of the collection support column, a first driving block is provided on the first track for sliding drive cooperation, an inclined slide rail is fixedly connected to the first driving block, a second driving block is provided on the inclined slide rail for sliding drive cooperation, and the collection injection needle is fixed on the second driving block.

[0026] Description: By slidingly engaging the first driving block on the first track and the second driving block on the inclined slide rail, the collection injection needle can be moved to any position along the axial direction of the collection support column in the collection support column, so that the collection injection needle can cooperate with any sample storage bottle position and inject the water sample into the sample storage bottle.

[0027] Preferably, an intermediate conveying tank is fixedly provided in the pumping accommodating shell, a filter driving shell is fixedly provided on the top of the intermediate conveying tank, a filter piston is slidably provided in the intermediate conveying tank, a piston driving rod is fixedly provided on the filter piston, the other end of the piston driving rod extends into the filter driving shell, an electric control telescopic rod is fixedly provided in the filter driving shell, and the electric control telescopic rod drives the filter piston to slide in the intermediate conveying tank through the piston driving rod;

[0028] The filter piston is a hollow structure, and a filter screen is fixed on the filter piston;

[0029] A second sampling delivery pump is fixedly arranged outside the intermediate delivery tank, the input end of the second sampling delivery pump is connected to the upper part of the filter piston in the intermediate delivery tank, and the output end of the second delivery pump is connected to the inside of the collection injection needle tube through a pipeline;

[0030] The intermediate conveying tank is provided with a water inlet, which is connected with the upper part of the filter piston in the intermediate conveying tank. The lower end of the intermediate conveying tank is provided with a drainage hole, which is connected with the lower part of the filter piston in the intermediate conveying tank. The water inlet is provided with a single-sided opening and closing cover plate which only allows external water to enter the intermediate conveying tank through the water inlet, and the drainage hole is provided with a single-sided opening and closing cover plate which only allows water in the intermediate conveying tank to be discharged to the outside through the drainage hole.

[0031] Note: An intermediate transfer tank is set up. Groundwater that may contain sediment is first collected in the intermediate transfer tank, and most of the sediment in the water is filtered out before being transferred to the sample storage bottle.

[0032] Preferably, a guide baffle is fixed in the monitoring accommodating through hole, and a plurality of rotating baffles are arranged in the guide baffle.

[0033] Note: Setting the guide baffle can provide certain protection for each sensor in the non-working stage by controlling the opening and closing of multiple rotating baffles.

[0034] Preferably, an auxiliary driving mechanism for driving the collection and storage mechanism to rise and fall in the protection tube is provided in the protection tube, the auxiliary driving mechanism comprises a hollow driving support tube and a plurality of driving wheels provided in the driving support tube, a plurality of driving wheel extension openings connected to the inside of the driving support tube are provided near the upper end and the lower end of the side wall of the driving support tube, and the driving wheel extension openings are evenly dispersed and arranged along the circumference of the driving support tube;

[0035] A driving wheel support is fixed on the inner wall of the driving support cylinder at the opening where the driving wheel extends out, and a driving wheel support rod is connected to the driving wheel support via a movable hinge, the driving wheel is rotatably connected to one end of the driving wheel support rod, and a constraint small shaft is fixed to the other end of the driving wheel support rod;

[0036] A coaxial sliding matching column is fixedly provided in the driving support cylinder, and two driving constraint rings are slidingly matched on the sliding matching column. The edges of the driving constraint rings are provided with constraint ring grooves penetrating along the axial direction thereof, and the inner side walls of the constraint ring grooves are provided with inclined constraint grooves, and the constraint small shaft is slidingly matched and constrained in the inclined constraint grooves;

[0037] The driving restraint ring is provided with a threaded hole which passes through from top to bottom, and a threaded driving rod is provided in the threaded hole for threaded transmission cooperation, and the upper and lower ends of the threaded driving rod are respectively rotatably cooperated and connected with the upper and lower ends in the driving support cylinder;

[0038] The threads in the threaded holes on the two driving restraining rings have opposite rotation directions, and the threaded driving rod has two sections of external threads with opposite rotation directions corresponding to the threaded holes on the two driving restraining rings;

[0039] A second motor is fixedly arranged in the driving support cylinder, and the second motor is used for driving the threaded driving rod to rotate.

[0040] Note: Since the cable cannot provide thrust, the auxiliary driving mechanism can better drive the collection and storage mechanism to descend in the protective tube, so that the collection and storage mechanism reaches the designated collection position.

[0041] Preferably, the inner side wall of the driving support cylinder near the upper and lower ends and located at the opening where the driving wheel extends out are rotatably matched with a closed rotating ring, and the closed rotating ring has a closed ring matching opening;

[0042] A third driven gear ring is fixedly connected to the closed rotating ring, a third motor is fixedly arranged in the driving support cylinder, a third driving gear is fixedly arranged on the output shaft of the third motor, and the third driving gear is meshingly connected with the third driven gear ring.

[0043] Description: The sealed swivel can seal the opening where the drive wheel extends out, preventing impurities from entering the drive support cylinder through the opening where the drive wheel extends out.

[0044] Compared with the prior art, the beneficial effects of the present invention are: the structural design of the present invention is reasonable and the operation is convenient. The device of the present invention can go deep underground to collect groundwater in batches for multiple times, and the collected water samples are properly stored in corresponding sample storage bottles by using a central distribution mechanism. The intermediate conveying tank can intercept most of the silt to prevent excessive silt from entering the sample storage bottle in the water sample. The auxiliary driving mechanism can be used to tow and convey the collection and storage mechanism to a designated location for collecting water samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of the monitoring platform of the present invention;

[0046] Figure 2 yes Figure 1 A partial view in FIG.

[0047] Figure 3 It is a structural schematic diagram of the collection and storage mechanism in the present invention;

[0048] Figure 4 yes Figure 3 A top view of

[0049] Figure 5 It is a structural schematic diagram of the positioning control ring in the present invention;

[0050] Figure 6 yes Figure 3A partial view B;

[0051] Figure 7 yes Figure 3 A partial view C;

[0052] Figure 8 It is a structural schematic diagram of the intermediate conveying tank in the present invention;

[0053] Fig. 9 It is a structural schematic diagram of the real-time monitoring mechanism in the present invention;

[0054] Fig.10 It is a structural schematic diagram of the auxiliary driving mechanism in the present invention;

[0055] Fig.11 yes Fig.10 A top view of

[0056] Fig.12 It is a schematic diagram of the structure of the driving constraint ring in the present invention;

[0057] Fig.13 It is a structural schematic diagram of the guide baffle in the present invention;

[0058] Fig.14 yes Fig.13 Right view of;

[0059] Fig.15 It is a schematic diagram of information feedback of the real-time monitoring mechanism in the present invention.

[0060] In the figure, 10-lifting mechanism, 11-lifting support column, 110-cable through hole, 12-winding roller, 121-driven worm gear, 13-first drive motor, 131-driving worm, 14-guide fixed pulley, 20-collection storage mechanism, 201-storage storage shell, 202-collection support column, 203-rotating support ring, 204-sample support rotating ring, 205-storage support plate, 206-positioning control ring, 2061-T-shaped opening, 21-storage bottle fixing cylinder, 211-fixed cylinder support shaft, 20 0-sample storage bottle, 2001-magnetic matching ring, 212-magnetic fixing ring, 213-linkage connecting rod, 214-positioning control rod, 23-pumping housing, 24-first sampling delivery pump, 25-intermediate delivery tank, 251-filter drive housing, 252-filter piston, 2521-filter screen, 253-piston drive rod, 254-electric telescopic rod, 255-second sampling delivery pump, 256-water inlet, 257-drain hole, 30-central distribution mechanism, 301-needle tube through hole, 31-first track, 311-first drive block, 32-inclined slide rail, 321-second drive block, 300-collection injection needle tube, 40-real-time monitoring mechanism, 41-monitoring integrated cylinder, 411-monitoring accommodation through hole, 401-temperature sensor, 402-flow rate sensor, 403-conductivity sensor, 404-pH sensor, 405-ORP sensor, 406-turbidity sensor, 42-flow guide baffle, 421-rotating baffle, 50-auxiliary drive mechanism, 500-driving wheel, 51-driving support cylinder, 511-driving Driving wheel support, 512-driving wheel support rod, 513-closed swivel, 52-sliding matching column, 53-driving constraint ring, 531-constraint ring slot, 532-tilted constraint slot, 533-threaded hole, 534-threaded driving rod, 5121-constraint small shaft, 5131-closed ring matching opening, 5132-third driven gear ring, 54-second motor, 55-third motor, 551-third driving gear, 90-monitoring platform, 91-hardened substrate, 92-monitoring chamber, 93-monitoring through hole, 94-protective tube. DETAILED DESCRIPTION

[0061] Combine the following Figure 1-Figure 14 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1 The up-down, left-right, front-back directions of the projection relationship itself are consistent.

[0062] Example:

[0063] A monitoring sampling device for shallow groundwater level and pollution monitoring, such as Figure 1 , Figure 3 as well as Fig. 9As shown, it includes a monitoring platform 90 built on the ground, a lifting mechanism 10 installed in the monitoring platform 90, a collection and storage mechanism 20, a central distribution mechanism 30, and a real-time monitoring mechanism 40;

[0064] like Figure 1 As shown, the monitoring platform 90 includes a hardened base plate 91 fixed on the ground, a monitoring chamber 92 is fixedly installed on the top of the hardened base plate 91, a monitoring through hole 93 leading to groundwater is drilled on the ground inside the monitoring chamber 92, and a protective pipe 94 is fixed inside the monitoring through hole 93;

[0065] like Figure 2 As shown, a hollow protective shell 921 is fixed on the top of the monitoring room 92, and the lifting mechanism 10 includes a lifting support column 11 fixed on the top of the monitoring room 92 and located in the protective shell 921, and a winding roller 12 is rotatably provided on the lifting support column 11, and a cable 120 is wound around the winding roller 12;

[0066] The lifting support column 11 is a hollow structure that passes through from top to bottom. A cable through hole 110 that is connected to the inside of the lifting support column 11 is provided on the side wall thereof. A plurality of guide fixed pulleys 14 are fixed in the protective shell 921 and the lifting support column 11. One end of the cable 120 extends through the cable through hole 110 into the lifting support column 11 under the guidance of the plurality of guide fixed pulleys 14 and extends downward along the axial direction of the lifting support column 11.

[0067] A driven worm gear 121 is fixed on the winding roller 12 , a first drive motor 13 is fixed on the top of the monitoring chamber 92 , a drive worm 131 is fixed on the output shaft of the first drive motor 13 , and the drive worm 131 is meshedly connected with the driven worm gear 121 .

[0068] The collection and storage mechanism 20 is slidably fitted in the protection pipe 94, and the lifting mechanism 10 is installed inside the monitoring room 92. The lifting mechanism 10 is used to transport the collection and storage mechanism 20 to the groundwater collection site through the protection pipe 94 and to lift the collection and storage mechanism 20 from the groundwater collection site to the ground; Figure 3 As shown, the collection storage mechanism 20 includes a cylindrical storage housing 201, a collection support column 202 fixed in the storage housing 201, and a plurality of sample storage bottles 200 mounted on the collection support column 202;

[0069] like Figure 3As shown, a rotating support ring 203 is provided in a sliding cooperation with the storage storage shell 201, and the rotating support ring 203 can slide along the axis direction of the storage storage shell 201, and a sample support rotating ring 204 is rotatably provided on the rotating support ring 203, and a plurality of pairs of storage support plates 205 are fixed on the top of the sample support rotating ring 204, and a plurality of storage bottle fixing cylinders 21 are connected between each pair of storage support plates 205, and the bottle mouth of the sample storage bottle 200 is fixedly installed in the storage bottle fixing cylinder 21, and a plurality of storage bottle fixing cylinders 21 are evenly dispersed and arranged on the storage support plate 205 along the axis direction of the storage storage shell 201;

[0070] like Figure 7 As shown, a magnetic fixing ring 212 is provided in the storage bottle fixing tube 21, and a magnetic matching ring 2001 is provided on the outside of the sample storage bottle 200 at the bottle mouth. The magnetic matching ring 2001 and the magnetic fixing ring 212 fix the sample storage bottle 200 in the storage bottle fixing tube 21 by magnetic fixing, and a rubber stopper is fixed in the bottle mouth of the sample storage bottle 200.

[0071] The storage bottle fixing cylinder 21 is a hollow structure along its own axis, and a fixing cylinder support shaft 211 is fixed to the outside of the storage bottle fixing cylinder 21, and the fixing cylinder support shaft 211 is rotatably connected to the storage support plate 205;

[0072] Two adjacent storage bottle fixing cylinders 21 along the axial direction of the storage housing 201 are connected via a linkage rod 213 , and both ends of the linkage rod 213 are connected to the storage bottle fixing cylinders 21 via a movable hinge structure.

[0073] like Figure 3 As shown, a plurality of pairs of storage support plates 205 are commonly fixed with a positioning control ring 206 on the top, and the positioning control ring 206 has a T-shaped opening 2061;

[0074] The uppermost linkage link 213 is connected with a positioning control rod 214 . The positioning control rod 214 extends upward and passes through the T-shaped opening 2061 . A limiting small shaft 2141 is fixedly disposed on the positioning control rod 214 .

[0075] The collection support column 202 is a hollow structure, and the central distribution mechanism 30 includes a collection injection needle tube 300 connected to the inside of the collection support column 202 through a slide rail structure;

[0076] The side wall of the collection support column 202 is provided with a plurality of needle tube through holes 301, and the axis of the needle tube through hole 301 coincides with the axis of the bottle mouth of each sample storage bottle 200;

[0077] like Figure 6As shown, a first track 31 is fixed to the inner wall of the collection support column 202, and the first track 31 is extended along the axis of the collection support column 202. A first driving block 311 is provided on the first track 31 for sliding driving. An inclined slide rail 32 is fixedly connected to the first driving block 311. A second driving block 321 is provided on the inclined slide rail 32 for sliding driving. The collection injection needle 300 is fixed on the second driving block 321.

[0078] like Figure 3 As shown, a pumping housing 23 is fixedly disposed at the lower end of the storage housing 201. The pumping housing 23 is a hollow structure. A first sampling delivery pump 24 is fixedly disposed inside the pumping housing 23. The output end of the first sampling delivery pump 24 is connected to the inside of the collection injection needle 300 through a delivery tube.

[0079] like Figure 8 As shown, an intermediate conveying tank 25 is fixedly provided in the pumping containing shell 23, a filter driving shell 251 is fixedly provided on the top of the intermediate conveying tank 25, a filter piston 252 is slidably provided in the intermediate conveying tank 25, a piston driving rod 253 is fixedly provided on the filter piston 252, the other end of the piston driving rod 253 extends into the filter driving shell 251, an electric control telescopic rod 254 is fixedly provided in the filter driving shell 251, and the electric control telescopic rod 254 drives the filter piston 252 to slide in the intermediate conveying tank 25 through the piston driving rod 253;

[0080] The filter piston 252 is a hollow structure, and a filter screen 2521 is fixedly provided on the filter piston 252;

[0081] A second sampling delivery pump 255 is fixedly disposed outside the intermediate delivery tank 25. The input end of the second sampling delivery pump 255 is connected to the upper portion of the filter piston 252 in the intermediate delivery tank 25. The output end of the second delivery pump 255 is connected to the inside of the collection injection needle tube 300 through a pipeline.

[0082] The intermediate conveying tank 25 has a water inlet 256, which is connected to the upper part of the filter piston 252 in the intermediate conveying tank 25. The lower end of the intermediate conveying tank 25 has a drain hole 257, which is connected to the lower part of the filter piston 252 in the intermediate conveying tank 25. The water inlet 256 has a single-sided opening and closing cover that only allows external water to enter the intermediate conveying tank 25 through the water inlet 256. The drain hole 257 has a single-sided opening and closing cover that only allows water in the intermediate conveying tank 25 to be discharged to the outside through the drain hole 257.

[0083] like Fig. 9As shown, the real-time monitoring mechanism 40 includes a monitoring integrated cylinder 41 fixed at the lower end of the pumping containment shell 23, and the monitoring integrated cylinder 41 has a plurality of monitoring containment through holes 411, and the temperature sensor 401, the flow rate sensor 402, the conductivity sensor 403, the pH sensor 404, the ORP sensor 405 and the turbidity sensor 406 are respectively fixed in the monitoring containment through holes 411.

[0084] The temperature sensor 401, the flow rate sensor 402, the conductivity sensor 403, the pH sensor 404, the ORP sensor 405 and the turbidity sensor 406 all adopt the existing technology;

[0085] like Fig.15 As shown, the monitoring room 92 has a control computer, and the data detected by the temperature sensor 401, the flow rate sensor 402, the conductivity sensor 403, the pH sensor 404, the ORP sensor 405 and the turbidity sensor 406 are transmitted to the computer via cables for storage and analysis;

[0086] Generally, at a certain time interval, the collection injection needle 300 of the central distribution mechanism 30 is controlled by a computer to collect the water sample into the sample storage bottle 200 of the collection storage mechanism 20 for storage;

[0087] When the data detected by the temperature sensor 401, the flow rate sensor 402, the conductivity sensor 403, the pH sensor 404, the ORP sensor 405 and the turbidity sensor 406 show abnormal changes, these sensors first feed back the data to the computer, and then the computer controls the collection injection needle 300 of the central distribution mechanism 30 to collect the water sample of the abnormal change period into the sample storage bottle 200 of the collection storage mechanism 20;

[0088] like Fig.13 , Fig.14 As shown, a guide baffle 42 is fixed in the monitoring accommodating through hole 411 , and a plurality of rotating baffles 421 are provided in the guide baffle 42 .

[0089] The protection tube 94 is provided with an auxiliary driving mechanism 50 for driving the collection storage mechanism 20 to rise and fall in the protection tube 94. Fig.10 As shown, the auxiliary driving mechanism 50 includes a hollow driving support cylinder 51 and a plurality of driving wheels 500 disposed in the driving support cylinder 51. The side wall of the driving support cylinder 51 has a plurality of driving wheel extension openings 510 connected to the interior thereof near the upper end and the lower end. The driving wheel extension openings 510 are evenly dispersed and arranged along the circumference of the driving support cylinder 51.

[0090] A driving wheel support 511 is fixed to the inner wall of the driving support cylinder 51 at the driving wheel extending opening 510, and a driving wheel support rod 512 is connected to the driving wheel support 511 via a movable hinge. The driving wheel 500 is rotatably connected to one end of the driving wheel support rod 512, and a restraining small shaft 5121 is fixed to the other end of the driving wheel support rod 512;

[0091] like Fig.10 As shown, a coaxial sliding fitting column 52 is fixedly provided in the driving support cylinder 51, and two driving constraint rings 53 are slidingly provided on the sliding fitting column 52. The driving constraint ring 53 has a constraint ring slot 531 extending through the axial direction at its edge, and an inclined constraint groove 532 is provided on the inner side wall of the constraint ring slot 531. The constraint shaft 5121 is slidingly fitted and constrained in the inclined constraint groove 532.

[0092] The driving restraining ring 53 has a threaded hole 533 extending therethrough, and a threaded driving rod 534 is provided in the threaded hole 533 for transmission. The upper and lower ends of the threaded driving rod 534 are respectively rotatably connected to the upper and lower ends of the driving support cylinder 51.

[0093] The threads in the threaded holes 533 on the two driving restraining rings 53 have opposite rotation directions, and the threaded driving rod 534 has two sections of external threads with opposite rotation directions corresponding to the threaded holes 533 on the two driving restraining rings 53;

[0094] A second motor 54 is fixedly disposed in the driving support cylinder 51 , and the second motor 54 is used to drive the threaded driving rod 534 to rotate.

[0095] like Fig.11 As shown, the inner wall of the driving support cylinder 51 near the upper and lower ends and at the opening 510 where the driving wheel extends out are both rotatably matched with a closed rotating ring 513, and the closed rotating ring 513 has a closed ring matching opening 5131;

[0096] like Fig.10 As shown, a third driven gear ring 5132 is fixedly connected to the closed rotating ring 513, a third motor 55 is fixedly provided in the driving support cylinder 51, a third driving gear 551 is fixedly provided on the output shaft of the third motor 55, and the third driving gear 551 is meshingly connected with the third driven gear ring 5132. All of the above motors are driven by computer control.

Claims

1. A monitoring sampling device for shallow groundwater level and pollution monitoring, characterized in that: It comprises a monitoring platform (90) constructed on the ground, a lifting mechanism (10) installed in the monitoring platform (90), a collection and storage mechanism (20), a central distribution mechanism (30), and a real-time monitoring mechanism (40); The monitoring platform (90) comprises a hardened base plate (91) fixed on the ground, a monitoring chamber (92) is fixedly mounted on the top of the hardened base plate (91), a monitoring through hole (93) leading to groundwater is drilled on the ground inside the monitoring chamber (92), and a protective pipe (94) is fixed inside the monitoring through hole (93); The collection storage mechanism (20) is slidably fitted in the protection tube (94); the lifting mechanism (10) is installed inside the monitoring room (92); the lifting mechanism (10) is used to transport the collection storage mechanism (20) to the groundwater collection location through the protection tube (94) and to lift the collection storage mechanism (20) from the groundwater collection location to the ground; the collection storage mechanism (20) comprises a cylindrical storage housing (201), a collection support column (202) fixed in the storage housing (201), and a plurality of sample storage bottles (200) installed on the collection support column (202); The collection support column (202) is a hollow structure, and the central distribution mechanism (30) comprises a collection injection needle tube (300) connected to the inside of the collection support column (202) via a slide rail structure; The side wall of the collection support column (202) is provided with a plurality of needle tube through holes (301), and the axes of the needle tube through holes (301) coincide with the axes of the bottle mouths of the sample storage bottles (200); A pumping accommodating shell (23) is fixedly provided at the lower end of the storage housing (201); the pumping accommodating shell (23) is a hollow structure; a first sampling delivery pump (24) is fixedly provided inside the pumping accommodating shell (23); an output end of the first sampling delivery pump (24) is connected to the interior of the collection injection needle tube (300) via a delivery tube; A rotating support ring (203) is provided in a sliding manner in the storage housing shell (201), and the rotating support ring (203) can slide along the axis direction of the storage housing shell (201). A sample support rotating ring (204) is provided on the rotating support ring (203) for rotational cooperation. A plurality of pairs of storage support plates (205) are fixed on the top of the sample support rotating ring (204), and a plurality of storage bottle fixing cylinders (21) are connected between each pair of the storage support plates (205). The bottle mouth of the sample storage bottle (200) is fixedly installed in the storage bottle fixing cylinder (21), and the plurality of storage bottle fixing cylinders (21) are evenly dispersed and arranged on the storage support plate (205) along the axis direction of the storage housing shell (201); The storage bottle fixing cylinder (21) is a hollow structure that is continuous along its own axis, a fixing cylinder support rotating shaft (211) is fixed to the outside of the storage bottle fixing cylinder (21), and the fixing cylinder support rotating shaft (211) is rotatably connected to the storage support plate (205); Two adjacent storage bottle fixing cylinders (21) along the axis direction of the storage housing (201) are connected via a linkage connecting rod (213), and both ends of the linkage connecting rod (213) are connected to the storage bottle fixing cylinder (21) via a movable hinge structure; The real-time monitoring mechanism (40) comprises a monitoring integrated cylinder (41) fixed at the lower end of the pumping containment shell (23), the monitoring integrated cylinder (41) having a plurality of monitoring containment through holes (411), and a temperature sensor (401), a flow rate sensor (402), a conductivity sensor (403), a pH sensor (404), an ORP sensor (405), and a turbidity sensor (406) respectively fixed in the monitoring containment through holes (411).

2. A monitoring sampling device for shallow groundwater level and pollution monitoring according to claim 1, characterized in that: A hollow protective shell (921) is fixed to the top of the monitoring room (92); the lifting mechanism (10) comprises a lifting support column (11) fixed to the top of the monitoring room (92) and located in the protective shell (921); a winding roller (12) is rotatably provided on the lifting support column (11); a cable (120) is wound around the winding roller (12); The lifting support column (11) is a hollow structure that is passed through from top to bottom. The side wall of the lifting support column (11) is provided with a cable through hole (110) that is connected to the interior thereof. A plurality of guide fixed pulleys (14) are fixed in the protective shell (921) and in the lifting support column (11). One end of the cable (120) extends through the cable through hole (110) into the lifting support column (11) under the guidance of the plurality of guide fixed pulleys (14) and extends downward along the axial direction of the lifting support column (11); A driven worm gear (121) is fixed on the winding roller (12), a first drive motor (13) is fixed on the top of the monitoring chamber (92), a drive worm (131) is fixed on the output shaft of the first drive motor (13), and the drive worm (131) is meshingly connected with the driven worm gear (121).

3. A monitoring sampling device for shallow groundwater level and pollution monitoring according to claim 1, characterized in that: A plurality of pairs of storage support plates (205) are commonly fixedly provided with a positioning control ring (206) on the top, and the positioning control ring (206) has a T-shaped opening (2061); The uppermost linkage connecting rod (213) is connected to a positioning control rod (214), the positioning control rod (214) extending upward and passing through the T-shaped opening (2061), and a limiting small shaft (2141) is fixedly provided on the positioning control rod (214).

4. A monitoring sampling device for shallow groundwater level and pollution monitoring according to claim 1, characterized in that: The storage bottle fixing cylinder (21) has a magnetic fixing ring (212) inside, and the outer side of the sample storage bottle (200) is provided with a magnetic matching ring (2001) at the bottle mouth, and the magnetic matching ring (2001) and the magnetic fixing ring (212) fix the sample storage bottle (200) in the storage bottle fixing cylinder (21) by magnetic fixing, and a rubber stopper is fixed in the bottle mouth of the sample storage bottle (200).

5. A monitoring sampling device for shallow groundwater level and pollution monitoring according to claim 1, characterized in that: A first track (31) is fixed to the inner side wall of the collection support column (202), the first track (31) extending along the axis of the collection support column (202), a first driving block (311) is provided on the first track (31) for sliding driving cooperation, an inclined slide rail (32) is fixedly connected to the first driving block (311), a second driving block (321) is provided on the inclined slide rail (32) for sliding driving cooperation, and the collection injection needle tube (300) is fixed on the second driving block (321).

6. A monitoring sampling device for shallow groundwater level and pollution monitoring according to claim 1, characterized in that: An intermediate conveying tank (25) is fixedly provided in the pumping containing shell (23), a filter driving shell (251) is fixedly provided on the top of the intermediate conveying tank (25), a filter piston (252) is slidably provided in the intermediate conveying tank (25), a piston driving rod (253) is fixedly provided on the filter piston (252), the other end of the piston driving rod (253) extends into the filter driving shell (251), an electric control telescopic rod (254) is fixedly provided in the filter driving shell (251), and the electric control telescopic rod (254) drives the filter piston (252) to slide in the intermediate conveying tank (25) through the piston driving rod (253); The filter piston (252) is a hollow structure, and a filter screen (2521) is fixedly provided on the filter piston (252); A second sampling delivery pump (255) is fixedly disposed outside the intermediate delivery tank (25), the input end of the second sampling delivery pump (255) being connected to a portion of the intermediate delivery tank (25) located above the filter piston (252), and the output end of the second sampling delivery pump (255) being connected to the interior of the collection injection needle tube (300) via a pipeline; The intermediate conveying tank (25) has a water inlet (256), the water inlet (256) being in communication with a portion of the intermediate conveying tank (25) located above the filter piston (252); the lower end of the intermediate conveying tank (25) has a drainage hole (257), the drainage hole (257) being in communication with a portion of the intermediate conveying tank (25) located below the filter piston (252); the water inlet (256) has a single-sided opening and closing cover plate, which only allows external water to enter the intermediate conveying tank (25) through the water inlet (256); and the drainage hole (257) has a single-sided opening and closing cover plate, which only allows water in the intermediate conveying tank (25) to be discharged to the outside through the drainage hole (257).

7. A monitoring sampling device for shallow groundwater level and pollution monitoring according to claim 1, characterized in that: A flow guide baffle (42) is fixed in the monitoring accommodating through hole (411), and a plurality of rotating baffles (421) are provided in the flow guide baffle (42).

8. A monitoring sampling device for shallow groundwater level and pollution monitoring according to claim 1, characterized in that: An auxiliary driving mechanism (50) for driving the collection and storage mechanism (20) to rise and fall in the protective tube (94) is arranged in the protective tube (94); the auxiliary driving mechanism (50) comprises a hollow driving support cylinder (51) and a plurality of driving wheels (500) arranged in the driving support cylinder (51); a plurality of driving wheel extension openings (510) are provided on the side wall of the driving support cylinder (51) near the upper end and near the lower end thereof and are connected to the interior thereof; the driving wheel extension openings (510) are evenly distributed along the circumference of the driving support cylinder (51); A driving wheel support (511) is fixed to the inner wall of the driving support cylinder (51) at the driving wheel extension opening (510); a driving wheel support rod (512) is connected to the driving wheel support (511) via a movable hinge; the driving wheel (500) is rotatably connected to one end of the driving wheel support rod (512); a restraining small shaft (5121) is fixed to the other end of the driving wheel support rod (512); A coaxial sliding fitting column (52) is fixedly provided inside the driving support cylinder (51), and two driving constraint rings (53) are slidingly fitted on the sliding fitting column (52). The edges of the driving constraint rings (53) are provided with constraint ring slots (531) extending through the driving constraint rings (53) along their axial direction, and the inner side walls of the constraint ring slots (531) are provided with inclined constraint slots (532), and the constraint shaft (5121) is slidingly fitted and constrained in the inclined constraint slots (532); The driving restraining ring (53) has a threaded hole (533) extending vertically therethrough, the threaded hole (533) is provided with a threaded driving rod (534) in threaded transmission cooperation, and the upper and lower ends of the threaded driving rod (534) are respectively rotatably cooperated with the upper and lower ends in the driving support cylinder (51); The threads in the threaded holes (533) on the two driving constraint rings (53) have opposite rotation directions, and the threaded driving rod (534) has two sections of external threads with opposite rotation directions corresponding to the threaded holes (533) on the two driving constraint rings (53); A second motor (54) is fixedly disposed inside the driving support cylinder (51), and the second motor (54) is used to drive the threaded driving rod (534) to rotate.

9. A monitoring sampling device for shallow groundwater level and pollution monitoring according to claim 8, characterized in that: The inner side wall of the driving support cylinder (51) is provided with a sealed rotating ring (513) for rotational cooperation near the upper and lower ends and at the opening (510) where the driving wheel extends out, and the sealed rotating ring (513) has a sealed ring cooperation opening (5131); A third driven gear ring (5132) is fixedly connected to the sealed rotating ring (513), a third motor (55) is fixedly provided in the driving support cylinder (51), a third driving gear (551) is fixedly provided on the output shaft of the third motor (55), and the third driving gear (551) is meshingly connected to the third driven gear ring (5132).

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