CN112798349A

CN112798349A - Pollutant sampling device for water environment detection

Info

Publication number: CN112798349A
Application number: CN202110094366.XA
Authority: CN
Inventors: 徐学文; 闫雪峰
Original assignee: Wenzhou Caishe Agricultural Technology Co ltd
Current assignee: Wenzhou Caishe Agricultural Technology Co ltd
Priority date: 2021-01-23
Filing date: 2021-01-23
Publication date: 2021-05-14

Abstract

The invention discloses a pollutant sampling device for water environment detection, which comprises a device body, wherein a fixed plate is fixedly connected to the inner wall of the device body, a storage plate is fixedly connected to the top of the fixed plate, a first water pumping cavity, a second water pumping cavity and a third water pumping cavity are formed in the storage plate, pistons are movably connected to the interiors of the first water pumping cavity, the second water pumping cavity and the third water pumping cavity, slide bars are fixedly connected to the side walls of the pistons, and the slide bars extend to the outer part of the storage plate and are fixedly connected with connecting rods. Through setting up three piston and removing in pumping chamber, No. two pumping chambers and No. three pumping chambers, change the atmospheric pressure in pumping chamber, No. two pumping chambers and No. three pumping chambers, and then realize respectively from first inlet tube, second inlet tube and third inlet tube with the different degree of depth sewage inhale No. one pumping chamber, No. two pumping chambers and No. three pumping chambers, simple structure, convenient operation realizes the sewage under the multiple gradient of sampling simultaneously.

Description

Pollutant sampling device for water environment detection

Technical Field

The invention belongs to the technical field of sewage monitoring equipment, and particularly relates to a pollutant sampling device for water environment detection.

Background

With the rapid development of the economy of China, more and more various factories are distributed around the life of people, and the factories create the value of the factories, the pressure on the environment is worried about, some factories often discharge sewage which is not in accordance with the standard to the ground or rivers, which brings certain influence on physical and mental health of people, the sewage usually refers to the discharged water which is polluted to a certain extent and comes from life and production, the sewage mainly comprises domestic sewage, industrial waste water and initial rainwater, the main pollutants of the sewage comprise pathogen pollutants, oxygen-consuming pollutants, plant nutrients, toxic pollutants and the like, from the point of view of the source of the sewage, which can be defined as a liquid or water carrying wastes mixed with ground water, surface water, snow storm, etc. discharged from a residential, institutional, commercial or industrial area, there are many categories of sewage, and accordingly there are many techniques and processes to reduce the environmental impact of sewage.

The existing sampling device can not deeply penetrate into water to sample water at different depths, only can collect sewage with one gradient at a time, but can not simultaneously sample sewage under multiple gradients, and has the defects of poor flexibility and stability, difficult sewage extraction and low accuracy; the taken-out sewage has poor tightness, and is easy to cause sewage leakage and pollute the device; the device has complex structure, large size and inconvenient carrying.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a pollutant sampling device for water environment detection, which solves the problems that water at different depths cannot be deeply sampled in water, the taken-out sewage has poor tightness, sewage leakage is easily caused, and a polluted device and the device have complicated structures, large body sizes and are inconvenient to carry.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a pollutant sampling device that water environment detected usefulness, includes the device body, the inner wall fixedly connected with fixed plate of device body, the top fixedly connected with storage plate of fixed plate, storage plate's inside has been seted up one and has been taken out water chamber, No. two and No. three and taken out water chamber, the equal swing joint in inside of taking out water chamber, No. two and No. three taken out water chambers has the piston, the lateral wall fixedly connected with slide bar of piston, the slide bar extends to storage plate's outside and fixedly connected with connecting rod, the inner wall of device body is equipped with hydraulic means admittedly, hydraulic means's output fixedly connected with telescopic link, hydraulic means's one end and connecting rod fixed connection are kept away from to the telescopic link, the outer wall fixedly connected with winding dish of device body, three ring channel has been seted up to the outer wall of winding dish, and is three the ring channel is twined respectively has first inlet tube, The first inlet tube, the second inlet tube and the third inlet tube keep away from the one end of winding dish and extend to the inside in a water pumping chamber, No. two water pumping chambers and No. three water pumping chambers respectively. The bottom of the first water pumping cavity, the bottom of the second water pumping cavity and the bottom of the third water pumping cavity are provided with water leakage grooves.

Preferably, the bottom fixedly connected with bottom plate of device body, three locating hole has been seted up to the inside of bottom plate, and is three the inside of locating hole is pegged graft respectively and is had test tube, No. two test tubes and No. three test tubes, the inner wall fixedly connected with solid fixed splint of device body, the spout has been seted up to the lateral wall of device body, the device body has the slider through the spout sliding connection who sets up, the lateral wall fixedly connected with supporting spring of slider, the outer wall fixedly connected with movable clamp plate of slider, movable clamp plate's outer wall fixedly connected with handle, the relative lateral wall of solid fixed splint and movable clamp plate has all seted up the half slot, the inner wall fixedly connected with protection of half slot fills up.

Preferably, the top fixed mounting of fixed plate has driving motor, driving motor's output shaft extends to the below and the fixedly connected with threaded rod of fixed plate, the outer wall of threaded rod runs through and threaded connection has the slide, the three sealed lid of bottom fixedly connected with of slide, it is three the inside difference fixedly connected with of sealed lid is outlet pipe, No. two outlet pipes and No. three outlet pipes, the one end that sealed lid was kept away from to outlet pipe, No. two outlet pipes and No. three outlet pipes extends to the inside of the recess that leaks of a water pumping chamber, No. two water pumping chambers and No. three water pumping chamber bottoms respectively, the equal fixed mounting of outer wall of outlet pipe, No. two outlet pipes and No. three outlet pipes has the control valve.

Preferably, the outer wall of the device body is fixedly connected with a strap through a connecting piece, the outer wall of the device body is fixedly connected with a rubber pad, and a plurality of through holes are formed in the rubber pad.

Preferably, the inner wall border position of device body is connected with the flap door through the hinge rotation that sets up, the outer wall fixedly connected with of flap door draws the handle, the magnetic stripe No. two of lateral wall fixedly connected with of flap door, the magnetic stripe No. one of inner wall fixedly connected with of device body, just magnetic stripe and No. two magnetic stripe looks adaptations.

Preferably, the two ends of the sliding plate are connected with the device body in a sliding mode through sliding rectangular grooves.

Preferably, the half slot is located the locating hole directly over, the half slot of solid fixed splint and movable clamp plate lateral wall is merged and is the round hole and all with a test tube, No. two test tubes and No. three test tube looks adaptations.

Preferably, three sealed lids respectively with test tube, No. two test tubes and No. three test tubes looks adaptation.

Preferably, the upper surface of the fixing plate is provided with a storage battery, and the storage battery provides electric energy for the driving motor.

Compared with the prior art, the invention has the beneficial effects that:

1. through the winding dish that sets up with surface winding's first inlet tube, the different degree of depth in the measurand sewage is put into to second inlet tube and third inlet tube, start hydraulic means and drive the telescopic link shrink, it slides to the storage plate outside to drive three slide bar through the connecting rod, and then realize that three piston is in pumping chamber No. one, pumping chamber No. two and No. three pumping chamber remove along with it, pumping chamber No. one, pumping chamber No. two and No. three atmospheric pressure that pump the intracavity reduce, and then realize respectively from first inlet tube, second inlet tube and third inlet tube inhale pumping chamber No. one with the different degree of depth sewage in the measuring area, pumping chamber No. two and No. three pumping chambers, moreover, the steam generator is simple in structure, and convenient for operation, realize sampling the sewage under the multiple gradient simultaneously.

2. Drive the threaded rod through the driving motor who sets up and rotate, realize that the slide slides in the slip rectangular channel, cover No. one test tube respectively until three sealed lid, No. two test tubes and No. three test tubes, open three control valve, a water pumping cavity, No. two water pumping cavities and No. three water pumping intracavity's sample article of getting water are respectively through the recess of leaking through No. one outlet pipe, No. two outlet pipes and No. three outlet pipes flow in No. one test tube respectively, the inside of No. two test tubes and No. three test tubes, the leakproofness of sample is good, be difficult for leaking, improve the accuracy that detects.

3. The slider that drives movable clamp plate both sides through the handle that sets up is at the spout outside slip, the supporting spring shrink, conveniently deposit or take out a test tube, No. two test tubes and No. three test tubes, receive supporting spring's effort behind the loose hand, the movable clamp plate return, when depositing, with a test tube, No. two test tubes and No. three test tubes are inserted in the locating hole, utilize the fine fixed test tube of half slot that movable clamp plate and solid fixed splint set up, No. two test tubes and No. three test tubes, good stability, because a test tube, No. two test tubes and No. three test tubes are the glass material, the protection pad can be to a test tube, No. two test tubes and No. three test tubes have the guard action.

4. Adsorb through the magnetic stripe of a setting and No. two magnetic stripes, make things convenient for the lid switch to be closed, make things convenient for the sampling personnel to carry on the back the device body through the braces, go back the laboratory with this device, wherein, the setting up of rubber pad increases the travelling comfort of carrying on the back the device body, and the through-hole plays the ventilation effect, installs simple structure, and the size is less, conveniently carries.

Drawings

FIG. 1 is a schematic view of the structure of the present invention in a front view;

FIG. 2 is a rear view of the present invention;

FIG. 3 is a schematic cross-sectional view of a front-view direction storage plate according to the present invention;

FIG. 4 is a schematic perspective view of the device body according to the present invention;

FIG. 5 is an enlarged schematic view of 3-A of the present invention;

FIG. 6 is an enlarged view of FIG. 4-B of the present invention.

In the figure: 1. a device body; 2. moving the clamping plate; 3s, fixing the splint; 4. a slide plate; 5. a fixing plate; 6. a hydraulic device; 7. a telescopic rod; 8. a third water outlet pipe; 9. a connecting rod; 10. a second water outlet pipe; 11. a control valve; 12. a first water outlet pipe; 13. a third water inlet pipe; 14. a second water inlet pipe; 15. a first water inlet pipe; 16. a storage battery; 17. a drive motor; 18. a sealing cover; 19. a sliding rectangular groove; 20. a threaded rod; 21. covering the door; 22. a first test tube; 23. a base plate; 24. test tube II; 25. a handle; 26. test tube No. three; 27. a connecting member; 28. a harness; 29. a rubber pad; 30. a through hole; 31. an annular groove; 32. a winding disc; 33. pulling a handle; 34. a third water pumping cavity; 35. a second water pumping cavity; 36. a piston; 37. a first water pumping cavity; 38. a slide bar; 39. a storage plate; 40. a first magnetic strip; 41. a semicircular groove; 42. positioning holes; 43. a support spring; 44. a chute; 45. a slider; 46. a water leakage groove; 47. a protective pad; 48. and a second magnetic strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-6, the present invention provides a technical solution: a pollutant sampling device for water environment detection comprises a device body 1, wherein a fixing plate 5 is fixedly connected to the inner wall of the device body 1, a containing plate 39 is fixedly connected to the top of the fixing plate 5, a first water pumping cavity 37, a second water pumping cavity 35 and a third water pumping cavity 34 are formed in the containing plate 39, pistons 36 are movably connected to the insides of the first water pumping cavity 37, the second water pumping cavity 35 and the third water pumping cavity 34, a slide rod 38 is fixedly connected to the side wall of each piston 36, the slide rod 38 extends to the outside of the containing plate 39 and is fixedly connected with a connecting rod 9, a hydraulic device 6 is fixedly installed on the inner wall of the device body 1, an output end of the hydraulic device 6 is fixedly connected with a telescopic rod 7, one end of the telescopic rod 7, far away from the hydraulic device 6, is fixedly connected with the connecting rod 9, a winding disc 32 is fixedly connected to the outer wall of the, the three annular grooves 31 are respectively wound with a first water inlet pipe 15, a second water inlet pipe 14 and a third water inlet pipe 13, and one ends of the first water inlet pipe 15, the second water inlet pipe 14 and the third water inlet pipe 13, which are far away from the winding disc 32, respectively extend to the insides of a first water pumping cavity 37, a second water pumping cavity 35 and a third water pumping cavity 34. No. 37, No. two chamber 35 and No. three chamber 34 that draw water's bottom of drawing water chamber 37 all seted up the recess 46 that leaks, and the inner wall border position of device body 1 rotates through the hinge that sets up to be connected with and covers door 21, and the outer wall fixedly connected with of lid door 21 draws 33, and the lateral wall fixedly connected with of lid door 21 is No. two magnetic stripe 48, and the inner wall fixedly connected with magnetic stripe 40 of device body 1, and magnetic stripe 40 and No. two magnetic stripe 48 looks adaptations.

In this embodiment, the first water inlet pipe 15, the second water inlet pipe 14 and the third water inlet pipe 13 wound on the winding disc 32 are placed at different depths in the measured sewage, the hydraulic device 6 is started to drive the telescopic rod 7 to contract, the connecting rod 9 drives the three slide bars 38 to slide towards the outside of the containing plate 39, thereby realizing that the three pistons 36 move along with the first pumping cavity 37, the second pumping cavity 35 and the third pumping cavity 34, the air pressure in the first pumping cavity 37, the second pumping cavity 35 and the third pumping cavity 34 is reduced, and then realize respectively from first inlet tube 15, second inlet tube 14 and third inlet tube 13 with the different degree of depth sewage in the measuring region inhale the chamber 37 that draws water, No. two draw water the chamber 35 and No. three draw water the chamber 34 in, pack up first inlet tube 15, second inlet tube 14 and third inlet tube 13 again, simple structure, convenient operation realizes sampling the sewage under the multiple gradient simultaneously.

Example two:

as shown in fig. 1 to 6, on the basis of the first embodiment, the present invention provides a technical solution: bottom fixedly connected with bottom plate 23 of device body 1, three locating hole 42 has been seted up to the inside of bottom plate 23, the inside of three locating hole 42 is pegged graft respectively and is had test tube 22 No. two test tubes 24 and test tube 26 No. three, the inner wall fixedly connected with solid fixed splint 3 of device body 1, spout 44 has been seted up to the lateral wall of device body 1, device body 1 has slider 45 through the spout 44 sliding connection who sets up, slider 45's lateral wall fixedly connected with supporting spring 43, slider 45's outer wall fixedly connected with movable splint 2, movable splint 2's outer wall fixedly connected with handle 25, gu fixed splint 3 and movable splint 2's relative lateral wall all seted up half slot 41, the inner wall fixedly connected with protection pad 47 of half slot 41, half slot 41 is located directly over locating hole 42, gu fixed splint 3 and the half slot 41 of movable splint 2 lateral wall merge into the round hole and all with test tube 22 no, Tube number two 24 and tube number three 26 are fitted together.

In this embodiment, slide 45 on 2 both sides of movable clamp plate is driven at spout 44 lateral sliding through pulling handle 25, supporting spring 43 contracts, conveniently deposit or take out a test tube 22, No. two test tubes 24 and No. three test tubes 26, receive supporting spring 43's effort behind the loose hand, movable clamp plate 2 return, when depositing, with a test tube 22, No. two test tubes 24 and No. three test tubes 26 insert in locating hole 42, utilize a fixed test tube 22 that half slot 41 that movable clamp plate 2 and solid fixed clamp plate 3 set up, No. two test tubes 24 and No. three test tubes 26, good stability, because a test tube 22, No. two test tubes 24 and No. three test tubes 26 are the glass material, protection pad 47 can be to a test tube 22, No. two test tubes 24 and No. three test tubes 26 have the guard action.

Example three:

as shown in fig. 1 to 6, on the basis of the first embodiment and the second embodiment, the present invention provides a technical solution: a driving motor 17 is fixedly mounted at the top of the fixing plate 5, an output shaft of the driving motor 17 extends to the lower part of the fixing plate 5 and is fixedly connected with a threaded rod 20, the outer wall of the threaded rod 20 penetrates through and is in threaded connection with a sliding plate 4, three sealing covers 18 are fixedly connected to the bottom of the sliding plate 4, the interiors of the three sealing covers 18 are respectively and fixedly connected with a first water outlet pipe 12, a second water outlet pipe 10 and a third water outlet pipe 8, one ends of the first water outlet pipe 12, the second water outlet pipe 10 and the third water outlet pipe 8, which are far away from the sealing covers 18, respectively extend to the interiors of a first water pumping cavity 37, a second water pumping cavity 35 and a third water pumping cavity 34, control valves 11 are fixedly mounted on the outer walls of the first water outlet pipe 12, the second water outlet pipe 10 and the third water outlet pipe 8, two ends of the sliding plate 4 are in sliding connection with the, No. two test tubes 24 and No. three test tube 26 looks adaptation, and the upper surface of fixed plate 5 is provided with battery 16, and battery 16 provides the electric energy for driving motor 17.

In this embodiment, start driving motor 17 and drive threaded rod 20 and rotate, realize that slide 4 slides in slip rectangular channel 19, until three sealed lid 18 respectively with a test tube 22, No. two test tubes 24 and No. three test tubes 26 are covered, open three control valve 11, No. one take out water chamber 37, No. two take out water chamber 35 and No. three interior sample article of taking water in the chamber 34 of taking water respectively through the recess 46 that leaks through No. one outlet pipe 12, No. two outlet pipes 10 and No. three outlet pipes 8 flow in No. one test tube 22 respectively, No. two test tubes 24 and No. three test tubes 26's inside, the leakproofness of sample is good, be difficult for leaking, improve the accuracy that detects.

Example four:

as shown in fig. 1 to 6, on the basis of the first embodiment, the second embodiment and the third embodiment, the present invention provides a technical solution: the outer wall of the device body 1 is fixedly connected with a back belt 28 through a connecting piece 27, the outer wall of the device body 1 is fixedly connected with a rubber pad 29, and a plurality of through holes 30 are formed in the rubber pad 29.

In this embodiment, adsorb through magnetic stripe 40 and No. two magnetic stripes 48 that set up, make things convenient for lid 21 switch closure, make things convenient for the sampling personnel to carry on one's back device body 1 through braces 28, with this device back of the body laboratory, wherein, the setting up of rubber pad 29 increases the travelling comfort of carrying on one's back device body 1, and through-hole 30 plays the ventilation, and device simple structure, the size is less, conveniently carries.

When the device is used, the cover door 21 is opened by pulling the pull handle 33, the control valves 11 on the first water outlet pipe 12, the second water outlet pipe 10 and the third water outlet pipe 8 are all closed, the first water inlet pipe 15, the second water inlet pipe 14 and the third water inlet pipe 13 wound on the winding disc 32 are placed at different depths in the measured sewage, the hydraulic device 6 is started to drive the telescopic rod 7 to contract, the three sliding rods 38 are driven by the connecting rod 9 to slide towards the outside of the containing plate 39, so that the three pistons 36 move along with the first water pumping cavity 37, the second water pumping cavity 35 and the third water pumping cavity 34 in the first water pumping cavity 37, the second water pumping cavity 35 and the third water pumping cavity 34, the air pressure in the first water pumping cavity 37, the second water pumping cavity 35 and the third water pumping cavity 34 is reduced, and the sewage at different depths in the measuring area is pumped into the first water pumping cavity 37, the second water pumping cavity 35 and the third water pumping cavity 34 from the first water inlet pipe, then the first water inlet pipe 15, the second water inlet pipe 14 and the third water inlet pipe 13 are collected, the driving motor 17 is started to drive the threaded rod 20 to rotate, the sliding plate 4 slides in the sliding rectangular groove 19 until the three sealing covers 18 respectively cover the first test tube 22, the second test tube 24 and the third test tube 26, the three control valves 11 are opened, the water sampling products in the first water pumping cavity 37, the second water pumping cavity 35 and the third water pumping cavity 34 respectively flow into the first test tube 22, the second test tube 24 and the third test tube 26 through the first water outlet pipe 12, the second water outlet pipe 10 and the third water outlet pipe 8 through the water leakage grooves 46, the cover door 21 is closed, the first magnetic stripe 40 and the second magnetic stripe 48 are adsorbed, the device is carried back to the laboratory through the braces 28, the cover door 21 is opened, the threaded rod 20 is driven by the driving motor 17, the sliding plate 4 is enabled to move upwards, the sliding blocks 45 on the two sides of the movable clamp plate 2 are driven to slide outwards through the pulling handle 25 in the sliding, supporting spring 43 contracts, conveniently takes out, and the sewage sample in a test tube 22, No. two test tubes 24 and No. three test tubes 26 receives supporting spring 43's effort behind the pine hand, removes splint 2 return.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pollutant sampling device of water environment detection usefulness, includes device body (1), its characterized in that: the device comprises a device body (1), wherein a fixing plate (5) is fixedly connected to the inner wall of the device body (1), a storage plate (39) is fixedly connected to the top of the fixing plate (5), a first water pumping cavity (37), a second water pumping cavity (35) and a third water pumping cavity (34) are formed in the storage plate (39), pistons (36) are movably connected to the interiors of the first water pumping cavity (37), the second water pumping cavity (35) and the third water pumping cavity (34), slide rods (38) are fixedly connected to the side walls of the pistons (36), the slide rods (38) extend to the exterior of the storage plate (39) and are fixedly connected with connecting rods (9), a hydraulic device (6) is fixedly installed on the inner wall of the device body (1), telescopic rods (7) are fixedly connected to the output end of the hydraulic device (6), and one end, far away from the hydraulic device (6), of each telescopic rod (7) is fixedly connected with the corresponding connecting rod (9, outer wall fixedly connected with winding dish (32) of device body (1), three ring channel (31) have been seted up to the outer wall of winding dish (32), and is three ring channel (31) twine respectively has first inlet tube (15), second inlet tube (14) and third inlet tube (13), the one end that winding dish (32) were kept away from in first inlet tube (15), second inlet tube (14) and third inlet tube (13) extends to the inside of a water pumping chamber (37), No. two water pumping chambers (35) and No. three water pumping chambers (34) respectively, water leakage groove (46) have all been seted up to the bottom of a water pumping chamber (37), No. two water pumping chambers (35) and No. three water pumping chambers (34).

2. A pollutant sampling device for water environment detection according to claim 1, wherein: the device comprises a device body (1), wherein the bottom of the device body (1) is fixedly connected with a bottom plate (23), three positioning holes (42) are formed in the bottom plate (23), a first test tube (22), a second test tube (24) and a third test tube (26) are respectively inserted into the three positioning holes (42), a fixed clamping plate (3) is fixedly connected to the inner wall of the device body (1), a sliding groove (44) is formed in the side wall of the device body (1), the device body (1) is slidably connected with a sliding block (45) through the arranged sliding groove (44), a supporting spring (43) is fixedly connected to the side wall of the sliding block (45), a movable clamping plate (2) is fixedly connected to the outer wall of the sliding block (45), a handle (25) is fixedly connected to the outer wall of the movable clamping plate (2), and semicircular grooves (41) are formed in the opposite side walls of the fixed clamping, the inner wall of the semicircular groove (41) is fixedly connected with a protective pad (47).

3. A pollutant sampling device for water environment detection according to claim 1, wherein: a driving motor (17) is fixedly installed at the top of the fixed plate (5), an output shaft of the driving motor (17) extends to the lower part of the fixed plate (5) and is fixedly connected with a threaded rod (20), the outer wall of the threaded rod (20) penetrates through and is in threaded connection with a sliding plate (4), the bottom of the sliding plate (4) is fixedly connected with three sealing covers (18), a first water outlet pipe (12), a second water outlet pipe (10) and a third water outlet pipe (8) are respectively and fixedly connected inside the three sealing covers (18), one ends of the first water outlet pipe (12), the second water outlet pipe (10) and the third water outlet pipe (8) far away from the sealing cover (18) respectively extend into the water leakage grooves (46) at the bottoms of the first water pumping cavity (37), the second water pumping cavity (35) and the third water pumping cavity (34), the outer walls of the first water outlet pipe (12), the second water outlet pipe (10) and the third water outlet pipe (8) are fixedly provided with control valves (11).

4. A pollutant sampling device for water environment detection according to claim 1, wherein: the device is characterized in that the outer wall of the device body (1) is fixedly connected with a strap (28) through a connecting piece (27), the outer wall of the device body (1) is fixedly connected with a rubber pad (29), and a plurality of through holes (30) are formed in the rubber pad (29).

5. A pollutant sampling device for water environment detection according to claim 1, wherein: the hinge that sets up is rotated to the inner wall border position of device body (1) and is connected with lid door (21), the outer wall fixedly connected with of lid door (21) draws handle (33), magnetic stripe (48) No. two of lateral wall fixedly connected with of lid door (21), magnetic stripe (40) No. one of the inner wall fixedly connected with of device body (1), just magnetic stripe (40) and No. two magnetic stripe (48) looks adaptations.

6. A pollutant sampling device for water environment detection according to claim 3, wherein: and the two ends of the sliding plate (4) are in sliding connection with the device body (1) through the arranged sliding rectangular grooves (19).

7. A pollutant sampling device for water environment detection according to claim 2, wherein: half slot (41) are located locating hole (42) directly over, half slot (41) of fixed splint (3) and removal splint (2) lateral wall are merged and are got up for the round hole and all with test tube (22), No. two test tubes (24) and No. three test tubes (26) looks adaptation.

8. A pollutant sampling device for water environment detection according to claim 3, wherein: the three sealing covers (18) are respectively matched with the first test tube (22), the second test tube (24) and the third test tube (26).

9. A pollutant sampling device for water environment detection according to claim 3, wherein: the upper surface of fixed plate (5) is provided with battery (16), battery (16) provide the electric energy for driving motor (17).