CN220583874U

CN220583874U - Groundwater quality of water monitoring sampling device

Info

Publication number: CN220583874U
Application number: CN202322201229.9U
Authority: CN
Inventors: 张慧; 郭文建; 张海艳
Original assignee: Shandong Ecological Environment Monitoring Center
Current assignee: Shandong Ecological Environment Monitoring Center
Priority date: 2023-08-16
Filing date: 2023-08-16
Publication date: 2024-03-12
Anticipated expiration: 2033-08-16

Abstract

The utility model discloses an underground water quality monitoring and sampling device, which comprises a sampling device, a clamping mechanism and a sampling bottle; the clamping mechanism is arranged in the sampling device; the sampling bottle is clamped on the clamping mechanism; the clamping mechanism comprises a motor I, a clamping plate II, a gear I, a gear II, a connecting ring I, a connecting ring II, a hydraulic cylinder, a connecting plate I, a connecting plate II, a connecting rod II, a gear ring, a connecting cylinder I, a connecting cylinder II, a spring II, a motor II, a connecting block, a gear III and a motor III; the sampling bottle comprises a bottle body, a water outlet, a sealing cover, a guide shaft, a rubber plug II, a connecting cylinder III, a spring III, a compression bar, a connecting shaft, a connecting rod III, a push rod II and a rubber plug III. The utility model can continuously sample the underground water and prevent the sample from being remained in the device to influence the next sampled sample.

Description

Groundwater quality of water monitoring sampling device

Technical Field

The utility model belongs to the technical field of water quality monitoring, and particularly relates to an underground water quality monitoring sampling device.

Background

At present, under the action of various pollution sources, the pollution of shallow groundwater is serious and the pollution speed is high, so that a groundwater water quality monitoring and sampling device is needed, the water quality of groundwater is conveniently monitored, so that the dynamic change condition can be mastered in time, and the groundwater is protected for a long time;

according to the search, the patent number 202223445083.4 is a sampling device for monitoring groundwater in a chemical park, and the device drives a sampling head to lift through a motor control supporting plate; then, starting the water pump to enable underground water to enter the connecting shell through the sampling head, the second water suction pipe and the third water suction pipe to filter a sampled water sample through the filter plate, then entering the water pump through the first water suction pipe, and then entering the sample storage box through the first water outlet pipe; the two pushing blocks are pushed inwards to drive the two movable plates and the positioning rod to squeeze the spring, so that the positioning rod is separated from the inner cavity of the chute and is retracted into the inner cavity of the positioning groove, and then the sliding block and the sample storage box can be taken out; however, the device cannot perform continuous multi-group sampling, and after the device samples, sample residues exist in a pipeline or a water pump, so that sample pollution can be caused when the next sampling is performed, and monitoring data is influenced; in view of this, a groundwater quality monitoring sampling device is proposed, which can prevent the sample from remaining in the device to affect the next sampled sample while continuously sampling groundwater.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a groundwater quality monitoring and sampling device.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the underground water quality monitoring and sampling device comprises a sampling device, a clamping mechanism and a sampling bottle; the clamping mechanism is arranged in the sampling device; the sampling bottle is clamped on the clamping mechanism; the sampling device comprises a shell I, a connecting seat, a shell II, a baffle, a filter box, a water inlet, a push rod I, a rotating ring, a scraping plate, a pressing plate, a spring I, a connecting rod I and a rubber plug I; the top of the shell I is provided with a pair of connecting seats, the bottom of the shell I is in threaded connection with the shell II, and the baffle is fixedly connected inside the shell I; the filter box is fixedly connected to the through groove at the bottom of the shell II, a plurality of through holes fixedly connected with sealing strips are formed in the top of the filter box, and a water inlet with a push rod I at the top end is fixedly connected to the upper part of the filter box; the rotary ring is rotationally connected with the shell II at the outer side of the filter box, and a plurality of gear teeth are arranged at the outer side of the rotary ring; the scraping plate is L-shaped, one end of the scraping plate is fixedly connected with the rotating ring, and the other end of the scraping plate is rotationally connected to the bottom of the filter box through the connecting shaft; the bottom of the pressing plate is fixedly connected with a plurality of connecting rods I, and the connecting rods I penetrate through the through holes at the top of the filter box and are fixedly connected with a rubber plug I arranged at the bottom of the water inlet through connecting plates; the spring I is provided with a plurality of springs, and the spring I is arranged between the pressing plate and the filter box along the connecting rod I.

The clamping mechanism comprises a motor I, a clamping plate II, a gear I, a gear II, a connecting ring I, a connecting ring II, a hydraulic cylinder, a connecting plate I, a connecting plate II, a connecting rod II, a gear ring, a connecting cylinder I, a connecting cylinder II, a spring II, a motor II, a connecting block, a gear III and a motor III; the motor III is fixedly connected to the baffle through a motor seat, and the output end of the motor III passes through a through hole in the baffle and is fixedly connected with the gear; the connecting plate I is fixedly connected with the connecting plate II through a plurality of connecting rods II, and a gear ring fixedly connected to the top end of the connecting plate I is meshed with a gear on the output end of the motor III; the motor I is fixedly connected to the connecting plate I through a motor seat, and the output end of the motor I passes through a through hole in the connecting plate I and is fixedly connected with the gear; the top of the connecting cylinder I is fixedly connected with the connecting plate II, the bottom of the connecting cylinder I is in sliding connection with the connecting cylinder II fixedly connected to the shell II, and the spring II is arranged in the connecting cylinder II at the bottom of the connecting cylinder I; the hydraulic cylinders are provided with a plurality of hydraulic cylinders, the two sides of the motor III are uniformly and fixedly connected to the baffle plate, and the extending ends of the hydraulic cylinders are contacted with the connecting plate I; the motor II is fixedly connected inside the connecting cylinder I through a motor seat, and the extending end of the motor II passes through a through hole at the bottom of the connecting cylinder I and is fixedly connected with the connecting block inside the connecting cylinder II; the gear III is meshed with gear teeth on the rotating ring, the gear III is rotationally connected with the shell II through a connecting seat provided with a slot, and the connecting block is slidingly connected in the slot on the connecting seat at the top end of the gear III; one end of the clamping plate I is fixedly connected with a connecting ring I fixedly connected with a plurality of gear teeth, one end of the clamping plate II is fixedly connected with a connecting ring II fixedly connected with a plurality of gear teeth, and the clamping plate I and the clamping plate II are rotationally connected with a connecting rod fixedly connected between the connecting plate I and the connecting plate II through the connecting ring I and the connecting ring II; the gear I is meshed with the gear II, the gear at the output end of the motor I and the gear teeth on the connecting ring I, the gear II is meshed with the gear teeth on the connecting ring II, and the gear I and the gear II are rotationally connected between the connecting plates I and II through connecting shafts.

The sampling bottle comprises a bottle body, a water outlet, a sealing cover, a guide shaft, a rubber plug II, a connecting cylinder III, a spring III, a compression bar, a connecting shaft, a connecting rod III, a push rod II and a rubber plug III; the top of the bottle body is provided with a water outlet, a guide shaft and an air outlet, the bottom of the bottle body is provided with a water inlet, and the sealing cover is in threaded connection with the water outlet; the bottom of the rubber plug II is arranged in the water outlet of the bottle body, and the top of the rubber plug II is fixedly connected with a pair of connecting cylinders III provided with springs III; one end of the pressure rod is fixedly connected with the bottle body, and the other end of the pressure rod is in sliding connection with the connecting cylinder III at the top of the spring III; one end of the connecting shaft is fixedly connected to the top of one connecting cylinder III, and the other end of the connecting shaft is fixedly connected with one end of a connecting rod III which is connected to the guide shaft in a sliding manner; the rubber plug III is arranged in the exhaust port of the bottle body, and the bottom of the rubber plug III is fixedly connected with the other end of the connecting rod III through the push rod II.

Compared with the prior art, the utility model has the beneficial effects that:

1) The whole device can be connected with other devices (such as a lifting device) through a connecting seat at the top of the shell I; through exerting pressure to the clamp plate, make clamp plate extrusion spring I downwards, connecting rod I drives rubber buffer I and breaks away from the water inlet downwards simultaneously, makes groundwater can get into inside the sampling device through the water inlet, removes behind the pressure of exerting on the clamp plate, spring I resets, control connecting rod I drive rubber buffer I reentry water inlet internal blocking groundwater and get into inside the sampling device;

2) The connecting block at the extending end of the motor II is matched with the gear III to drive the rotating ring to rotate, so that the scraping plate is controlled to rotate around the filter box, impurities attached to the outer side of the filter box are cleaned, and the influence of the impurities on water inflow of the filter box is prevented;

3) The gear on the motor I is matched with the gear I to enable the connecting ring I to drive the clamping plate I to rotate, and the gear II controls the connecting ring II to drive the clamping plate II to rotate, so that the clamping plate I and the clamping plate II clamp the sampling bottle; then, a gear at the output end of the motor III is matched with a gear ring, a clamped sampling bottle rotates above the water inlet, then the hydraulic cylinder stretches out, the connecting plates I and II are controlled to drive the connecting cylinder I to squeeze the spring II, and meanwhile, the clamped sampling bottle applies pressure to the pressing plate to sample; then the hydraulic cylinder is retracted, the spring II drives the connecting plate I, the connecting plate II and the connecting cylinder I to reset, so that the clamped sampling bottle rises to cancel the pressure applied on the pressing plate to finish sampling; then, the motor III controls the connecting plates I and II to drive the clamping plate I and II to rotate the new sampling bottle to the position above the water inlet, and the operation is repeated, so that the device can continuously sample for multiple times;

4) When the clamping mechanism drives the sampling bottle to apply pressure to the pressing plate, the push rod I pushes the rubber plug II to move upwards, so that the connecting cylinder III is matched with the pressing rod upwards to squeeze the spring III, and meanwhile, the connecting shaft drives the connecting rod III to control the push rod II to push the rubber plug III upwards to exhaust, so that underground water can conveniently enter the bottle body through the water inlet; after the sampling is finished, the clamping mechanism drives the sampling bottle to ascend, and meanwhile, the spring III resets, so that the rubber plug II reenters the water inlet at the bottom of the bottle body, and the rubber plug III reenters the air outlet at the top of the bottle body, thereby preventing the sample from being scattered; and the sampling device and the sampling bottle are matched for direct sampling and sample storage, so that the phenomenon of inaccurate monitoring results caused by mixing of groundwater samples with different depths can be effectively prevented.

Drawings

FIG. 1 is a schematic diagram of a groundwater quality monitoring and sampling device according to the present utility model;

FIG. 2 is a schematic view of the positioning structure of the sampling device, clamping mechanism and sampling bottle of FIG. 1;

FIG. 3 is a schematic view of the clamping mechanism of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the clamping mechanism of FIG. 1;

FIG. 5 is a schematic view of the internal structure of the sample bottle of FIG. 1;

FIG. 6 is a schematic view of the structure of the filter cartridge, the rotary ring, the connecting cylinder I and the motor II in FIG. 1;

FIG. 7 is an enlarged schematic view of the portion A of FIG. 6;

in the figure: 1. a sampling device; 101. a housing I; 1011. a connecting seat; 1012. a housing II; 1013. a baffle; 102. a filter box; 1021. a water inlet; 1022. a push rod I; 103. a rotating ring; 1031. a scraper; 104. a pressing plate; 1041. a spring I; 1042. a connecting rod I; 1043. a rubber plug I; 2. a clamping mechanism; 201. a motor I; 202. a clamping plate I; 2021. a clamping plate II; 2022. a gear I; 2023. a gear II; 2024. a connecting ring I; 2025. a connecting ring II; 203. a hydraulic cylinder; 204. a connecting plate I; 2041. a connecting plate II; 2042. a connecting rod II; 2043. a gear ring; 205. a connecting cylinder I; 2051. a connecting cylinder II; 2052. a spring II; 206. a motor II; 2061. a connecting block; 2062. a gear III; 207. a motor III; 3. sampling bottle; 301. a bottle body; 3011. a water outlet; 3012. sealing cover; 3013. a guide shaft; 302. a rubber plug II; 303. a connecting cylinder III; 3031. a spring III; 3032. a compression bar; 304. a connecting shaft; 3041. a connecting rod III; 3042. a push rod II; 3043. rubber stopper III.

Detailed Description

In order to facilitate understanding of those skilled in the art, the technical scheme of the present utility model will be further specifically described below with reference to fig. 1 to 7.

The underground water quality monitoring and sampling device comprises a sampling device 1, a clamping mechanism 2 and a sampling bottle 3; the clamping mechanism 2 is arranged in the sampling device 1; the sampling bottle 3 is clamped on the clamping mechanism 2; the sampling device 1 comprises a shell I101, a connecting seat 1011, a shell II 1012, a baffle 1013, a filter box 102, a water inlet 1021, a push rod I1022, a rotating ring 103, a scraping plate 1031, a pressing plate 104, a spring I1041, a connecting rod I1042 and a rubber plug I1043; the top of the shell I101 is provided with a pair of connecting seats 1011, the bottom of the shell I101 is in threaded connection with the shell II 1012, and the baffle 1013 is fixedly connected inside the shell I101; the filter box 102 is fixedly connected to a through groove at the bottom of the shell II 1012, a plurality of through holes fixedly connected with sealing strips are formed in the top of the filter box 102, and a water inlet 1021 provided with a push rod I1022 at the top end is fixedly connected to the upper part of the filter box 102; the rotating ring 103 is rotatably connected with the shell II 1012 at the outer side of the filter box 102, and a plurality of gear teeth are arranged at the outer side of the rotating ring 103; the scraping plate 1031 is L-shaped, one end of the scraping plate 1031 is fixedly connected with the rotating ring 103, and the other end of the scraping plate 1031 is rotatably connected to the bottom of the filter box 102 through a connecting shaft; the bottom of the pressing plate 104 is fixedly connected with a plurality of connecting rods I1042, and the connecting rods I1042 pass through a through hole at the top of the filter box 102 and are fixedly connected with a rubber plug I1043 arranged at the bottom of the water inlet 1021 through a connecting plate; the springs I1041 are provided with a plurality of springs, and the springs I1041 are arranged between the pressing plate 104 and the filter box 102 along the connecting rod I1042; the whole device can be connected with other devices (such as a lifting device) through a connecting seat 1011 at the top of the shell I101; through exerting pressure to clamp plate 104, make clamp plate 104 extrudeed spring I1041 downwards, simultaneously connecting rod I1042 drives rubber buffer I1043 and breaks away from water inlet 1021 downwards, makes groundwater can get into sampling device 1 inside through water inlet 1021, removes behind the pressure of exerting on clamp plate 104, spring I1041 resets, and control connecting rod I1042 drives rubber buffer I1043 and reenters the inside of the groundwater entering sampling device 1 of internal blocking of water inlet 1021.

The clamping mechanism 2 comprises a motor I201, a clamping plate I202, a clamping plate II 2021, a gear I2022, a gear II 2023, a connecting ring I2024, a connecting ring II 2025, a hydraulic cylinder 203, a connecting plate I204, a connecting plate II 2041, a connecting rod II 2042, a gear ring 2043, a connecting cylinder I205, a connecting cylinder II 2051, a spring II 2052, a motor II 206, a connecting block 2061, a gear III 2062 and a motor III 207; the motor III 207 is fixedly connected to the baffle 1013 through a motor seat, and the output end of the motor III 207 passes through a through hole in the baffle 1013 and is fixedly connected with the gear; the connecting plate I204 is fixedly connected with the connecting plate II 2041 through a plurality of connecting rods II 2042, and a gear ring 2043 fixedly connected to the top end of the connecting plate I204 is meshed with a gear on the output end of the motor III 207; the motor I201 is fixedly connected to the connecting plate I204 through a motor seat, and the output end of the motor I201 passes through a through hole in the connecting plate I204 and is fixedly connected with the gear; the top of the connecting cylinder I205 is fixedly connected with the connecting plate II 2041, the bottom of the connecting cylinder I is in sliding connection with the connecting cylinder II 2051 fixedly connected to the shell II 1012, and the spring II 2052 is arranged in the connecting cylinder II 2051 at the bottom of the connecting cylinder I205; the hydraulic cylinders 203 are provided with a plurality of hydraulic cylinders, the two sides of the motor III 207 are uniformly and fixedly connected to the baffle 1013, and the extending ends of the hydraulic cylinders 203 are contacted with the connecting plate I204; the motor II 206 is fixedly connected inside the connecting cylinder I205 through a motor seat, and the extending end of the motor II 206 passes through a through hole at the bottom of the connecting cylinder I205 and is fixedly connected with the connecting block 2061 inside the connecting cylinder II 2051; the gear III 2062 is meshed with the gear teeth on the rotating ring 103, the gear III 2062 is rotationally connected with the shell II 1012 through a connecting seat provided with a slot, and the connecting block 2061 is slidingly connected in the slot on the connecting seat at the top end of the gear III 2062; the connecting block 2061 at the extending end of the motor II 206 is matched with the gear III 2062 to drive the rotating ring 103 to rotate, so that the scraping plate 1031 is controlled to rotate around the filter box 102, impurities attached to the outer side of the filter box 102 are cleaned, and the impurities are prevented from affecting the water inlet of the filter box 102; one end of the clamping plate I202 is fixedly connected with a connecting ring I2024 fixedly connected with a plurality of gear teeth, one end of the clamping plate II 2021 is fixedly connected with a connecting ring II 2025 fixedly connected with a plurality of gear teeth, and the clamping plate I202 and the clamping plate II 2021 are rotationally connected with a connecting rod fixedly connected between the connecting plate I204 and the connecting plate II 2041 through the connecting ring I2024 and the connecting ring II 2025; the gear I2022 is meshed with gear II 2023, a gear at the output end of the motor I201 and gear teeth on the connecting ring I2024, the gear II 2023 is meshed with gear teeth on the connecting ring II 2025, and the gear I2022 and the gear II 2023 are rotationally connected between the connecting plate I204 and the connecting plate II 2041 through connecting shafts; the gear on the motor I201 is matched with the gear I2022 to enable the connecting ring I2024 to drive the clamping plate I202 to rotate, and the gear II 2023 controls the connecting ring II 2025 to drive the clamping plate II 2021 to rotate, so that the clamping plate I202 and the clamping plate II 2021 clamp the sampling bottle 3; then, a gear at the output end of the motor III 207 is matched with the gear ring 2043, the clamped sampling bottle 3 rotates above the water inlet 1021, then the hydraulic cylinder 203 stretches out, the connecting plate I204 and the connecting plate II 2041 are controlled to drive the connecting cylinder I205 to extrude the spring II 2052, and meanwhile, the clamped sampling bottle 3 applies pressure to the pressing plate 104 to sample; then the hydraulic cylinder 203 is retracted, the spring II 2052 drives the connecting plate I204, the connecting plate II 2041 and the connecting cylinder I205 to reset, so that the clamped sampling bottle 3 ascends to cancel the pressure applied on the pressing plate 104 to finish sampling; then, the motor III 207 controls the connecting plates I204 and II 2041 to drive the clamping plates I202 and II to rotate the new sampling bottle 3 to the position above the water inlet 1021 to repeat the operation, so that the device can continuously sample for multiple times.

The sampling bottle 3 comprises a bottle body 301, a water outlet 3011, a sealing cover 3012, a guide shaft 3013, a rubber plug II 302, a connecting cylinder III 303, a spring III 3031, a pressure lever 3032, a connecting shaft 304, a connecting rod III 3041, a push rod II 3042 and a rubber plug III 3043; the top of the bottle 301 is provided with a water outlet 3011, a guide shaft 3013 and an air outlet, the bottom is provided with a water inlet, and a sealing cover 3012 is in threaded connection with the water outlet 3011; the bottom of the rubber plug II 302 is arranged in the water outlet of the bottle 301, and the top of the rubber plug II is fixedly connected with a pair of connecting cylinders III 303 provided with springs III 3031; one end of the pressure rod 3032 is fixedly connected with the bottle 301, and the other end of the pressure rod is slidably connected with the connecting cylinder III 303 at the top of the spring III 3031; one end of the connecting shaft 304 is fixedly connected to the top of a connecting cylinder III 303, and the other end of the connecting shaft III 3041 which is connected to the guide shaft 3013 in a sliding manner is fixedly connected to one end of the connecting rod III; the rubber plug III 3043 is arranged in the air outlet of the bottle 301, and the bottom of the rubber plug III 3043 is fixedly connected with the other end of the connecting rod III 3041 through a push rod II 3042; when the clamping mechanism 2 drives the sampling bottle 3 to apply pressure to the pressing plate 104, the push rod I1022 pushes the rubber plug II 302 to move upwards, so that the connecting cylinder III 303 is matched with the press rod 3032 upwards to squeeze the spring III 3031, and meanwhile, the connecting shaft 304 drives the connecting rod III 3041 to control the push rod II 3042 to push the rubber plug III 3043 upwards to exhaust, so that groundwater can conveniently enter the bottle 301 through the water inlet 1021; after the sampling is finished, the clamping mechanism 2 drives the sampling bottle 3 to ascend, and meanwhile, the spring III 3031 resets, so that the rubber plug II 302 reenters the water inlet at the bottom of the bottle 301, and the rubber plug III 3043 reenters the air outlet at the top of the bottle 301, thereby preventing the sample from being scattered; and the sampling device 1 and the sampling bottle 3 are matched for direct sampling and sample storage, so that the phenomenon of inaccurate monitoring results caused by mixing groundwater samples with different depths can be effectively prevented.

A groundwater quality monitoring sampling device, the working process is as follows:

the gear on the motor I201 is matched with the gear I2022 to enable the connecting ring I2024 to drive the clamping plate I202 to rotate, and meanwhile the gear II 2023 controls the connecting ring II 2025 to drive the clamping plate II 2021 to rotate, so that the clamping plate I202 and the clamping plate II 2021 clamp the sampling bottle 3; then, a gear at the output end of the motor III 207 is matched with a gear ring 2043, the clamped sampling bottle 3 rotates above the water inlet 1021, then the hydraulic cylinder 203 extends out, the control connecting plate I204 and the connecting plate II 2041 drive the connecting cylinder I205 to extrude the spring II 2052, meanwhile, the clamped sampling bottle 3 applies pressure to the pressing plate 104, the pressing plate 104 downwards extrudes the spring I1041, the connecting rod I1042 is driven to control the rubber plug I1043 to be separated from the water inlet 1021 downwards, meanwhile, the push rod I1022 pushes the rubber plug II 302 upwards, the connecting cylinder III 303 and the press rod 3032 are matched to upwards extrude the spring III 3031, meanwhile, the connecting shaft 304 drives the connecting rod III 3041 to control the push rod II 3042 to upwards push the rubber plug III 3043 to exhaust, and underground water enters the bottle 301 through the water inlet 1021; then the hydraulic cylinder 203 is retracted, the spring II 2052 drives the connecting plate I204, the connecting plate II 2041 and the connecting cylinder I205 to reset, the clamped sampling bottle 3 ascends to cancel the pressure applied to the pressing plate 104, the spring I1041 is reset, and the connecting rod I1042 is controlled to drive the rubber plug I1043 to reenter the water inlet 1021 to block underground water from entering the device; simultaneously, the spring III 3031 resets, the rubber plug II 302 reenters the water inlet at the bottom of the bottle 301, and the rubber plug III 3043 reenters the air outlet at the top of the bottle 301; then, the motor III 207 controls the connecting plate I204 and the connecting plate II 2041 to drive the clamping plate I202 and the clamping plate II to rotate the new sampling bottle 3 to the position above the water inlet 1021, and the operation is repeated; the connection block 2061 at the extending end of the motor II 206 cooperates with the gear III 2062 to drive the rotating ring 103 to rotate while the sampling operation is performed, so as to control the scraping plate 1031 to rotate around the filter box 102 for cleaning.

The foregoing is merely illustrative and explanatory of the utility model, as it is well within the scope of the utility model as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. The underground water quality monitoring and sampling device comprises a sampling device, a clamping mechanism and a sampling bottle; the clamping mechanism is arranged in the sampling device; the sampling bottle is clamped on the clamping mechanism;

the clamping mechanism is characterized by comprising a motor I, a clamping plate II, a gear I, a gear II, a connecting ring I, a connecting ring II, a hydraulic cylinder, a connecting plate I, a connecting plate II, a connecting rod II, a gear ring, a connecting cylinder I, a connecting cylinder II, a spring II, a motor II, a connecting block, a gear III and a motor III; the motor III is fixedly connected to the baffle through a motor seat, and the output end of the motor III passes through a through hole in the baffle and is fixedly connected with the gear; the connecting plate I is fixedly connected with the connecting plate II through a plurality of connecting rods II, and a gear ring fixedly connected to the top end of the connecting plate I is meshed with a gear on the output end of the motor III; the motor I is fixedly connected to the connecting plate I through a motor seat, and the output end of the motor I passes through a through hole in the connecting plate I and is fixedly connected with the gear; the top of the connecting cylinder I is fixedly connected with the connecting plate II, the bottom of the connecting cylinder I is in sliding connection with the connecting cylinder II fixedly connected to the shell II, and the spring II is arranged in the connecting cylinder II at the bottom of the connecting cylinder I; the motor II is fixedly connected inside the connecting cylinder I through a motor seat, and the extending end of the motor II passes through a through hole at the bottom of the connecting cylinder I and is fixedly connected with the connecting block inside the connecting cylinder II; the gear III is meshed with gear teeth on the rotating ring, the gear III is rotationally connected with the shell II through a connecting seat provided with a slot, and the connecting block is slidingly connected in the slot on the connecting seat at the top end of the gear III; one end of the clamping plate I is fixedly connected with a connecting ring I fixedly connected with a plurality of gear teeth, one end of the clamping plate II is fixedly connected with a connecting ring II fixedly connected with a plurality of gear teeth, and the clamping plate I and the clamping plate II are rotationally connected with a connecting rod fixedly connected between the connecting plate I and the connecting plate II through the connecting ring I and the connecting ring II; the gear I is meshed with the gear II, the gear at the output end of the motor I and the gear teeth on the connecting ring I, the gear II is meshed with the gear teeth on the connecting ring II, and the gear I and the gear II are rotationally connected between the connecting plates I and II through connecting shafts.

2. The underground water quality monitoring and sampling device according to claim 1, wherein the sampling bottle comprises a bottle body, a water outlet, a sealing cover, a guide shaft, a rubber plug II, a connecting cylinder III, a spring III, a compression bar, a connecting shaft, a connecting rod III, a push rod II and a rubber plug III; the top of the bottle body is provided with a water outlet, a guide shaft and an air outlet, the bottom of the bottle body is provided with a water inlet, and the sealing cover is in threaded connection with the water outlet; the bottom of the rubber plug II is arranged in the water outlet of the bottle body, and the top of the rubber plug II is fixedly connected with a pair of connecting cylinders III provided with springs III; one end of the pressure rod is fixedly connected with the bottle body, and the other end of the pressure rod is in sliding connection with the connecting cylinder III at the top of the spring III; one end of the connecting shaft is fixedly connected to the top of one connecting cylinder III, and the other end of the connecting shaft is fixedly connected with one end of a connecting rod III which is connected to the guide shaft in a sliding manner; the rubber plug III is arranged in the exhaust port of the bottle body, and the bottom of the rubber plug III is fixedly connected with the other end of the connecting rod III through the push rod II.

3. The underground water quality monitoring and sampling device according to claim 1, wherein the sampling device comprises a shell I, a connecting seat, a shell II, a baffle plate, a filter box, a water inlet, a push rod I, a rotating ring, a scraping plate, a pressing plate, a spring I, a connecting rod I and a rubber plug I; the top of the shell I is provided with a pair of connecting seats, the bottom of the shell I is in threaded connection with the shell II, and the baffle is fixedly connected inside the shell I; the filter box is fixedly connected to the through groove at the bottom of the shell II, a plurality of through holes fixedly connected with sealing strips are formed in the top of the filter box, and a water inlet with a push rod I at the top end is fixedly connected to the upper part of the filter box; the rotary ring is rotationally connected with the shell II at the outer side of the filter box, and a plurality of gear teeth are arranged at the outer side of the rotary ring; the scraping plate is L-shaped, one end of the scraping plate is fixedly connected with the rotating ring, and the other end of the scraping plate is rotationally connected to the bottom of the filter box through the connecting shaft; the bottom of the pressing plate is fixedly connected with a plurality of connecting rods I, and the connecting rods I penetrate through the through holes at the top of the filter box and are fixedly connected with a rubber plug I arranged at the bottom of the water inlet through connecting plates; the spring I is provided with a plurality of springs, and the spring I is arranged between the pressing plate and the filter box along the connecting rod I.

4. The underground water quality monitoring and sampling device according to claim 1, wherein the hydraulic cylinders are provided with a plurality of hydraulic cylinders which are uniformly and fixedly connected to the baffle plates on two sides of the motor III, and the extending ends of the hydraulic cylinders are contacted with the connecting plate I.

5. The underground water quality monitoring and sampling device according to claim 1, wherein the gear at the output end of the motor III is matched with the gear ring, the clamped sampling bottle rotates above the water inlet, then the hydraulic cylinder stretches out, the connecting plate I and the connecting plate II are controlled to drive the connecting cylinder I to squeeze the spring II, and meanwhile the clamped sampling bottle applies pressure to the pressing plate to sample.

6. The underground water quality monitoring and sampling device according to claim 2, wherein when the clamping mechanism drives the sampling bottle to apply pressure to the pressing plate, the push rod I pushes the rubber plug II to move upwards, so that the connecting cylinder III is matched with the pressing rod to squeeze the spring III upwards, and meanwhile, the connecting shaft drives the connecting rod III to control the push rod II to push the rubber plug III upwards for exhausting.