CN111397972A

CN111397972A - A online sampling device for regional lake water quality testing

Info

Publication number: CN111397972A
Application number: CN202010381790.8A
Authority: CN
Inventors: 石常涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-07-10

Abstract

The invention relates to the technical field of regional lake water quality detection, in particular to an online sampling device for regional lake water quality detection, which comprises a hull, a front transverse plate and a rear transverse plate, wherein the front transverse plate is positioned at the front end of the hull, the rear transverse plate is positioned at the rear end of the hull, an upper cabin is arranged between the front transverse plate and the rear transverse plate at the upper end of the hull, a lower cabin is arranged at the lower end of the upper cabin, a positioning inlet is formed in one side, positioned on the upper cabin, of the upper end of the lower cabin, and the sampling device further comprises a sampling mechanism, a turnover mechanism, a driving mechanism, a sample receiving mechanism and a blending. The invention not only realizes the one-time collection of water samples in different areas in the lake, but also realizes the one-time collection of water samples with different depths in the area, does not need to be landed for many times, realizes intelligent remote control sampling, automatically collects the water samples, is simple and convenient to operate, and is suitable for the on-line collection of the water samples in the large-scale lake.

Description

A online sampling device for regional lake water quality testing

Technical Field

The invention relates to the technical field of regional lake water quality detection, in particular to an online sampling device for regional lake water quality detection.

Background

Water resource shortage and water quality pollution are two major problems facing water environment in the world nowadays, and are more and more paid attention and concerned in all parts of the world. With the rapid development of economy, the rapid growth of population, the increasingly frequent human social activities and the continuous enlargement of enterprise scale, a large amount of toxic and harmful pollutants such as domestic sewage, organic matters, heavy metals and the like continuously enter rivers and lakes, the water pollution problem is serious day by day, many water sources are polluted by sudden or gradual water quality, and particularly, serious disasters are brought to the survival and ecological environment of human beings due to serious sudden water pollution accidents.

Traditional sampling device for lake water quality testing is mostly through personnel's manual collection of taking advantage of the ship, this mode is comparatively hard, also adopt unmanned ship to carry out remote control sampling, but this mode majority can only be to an area sampling back, the water sample that needs to take in the bank is taken off, then travel to another area sampling once more, this mode is too time-consuming, chinese patent discloses a sampling device for lake water quality testing (grant No. CN 106441994B), the collection work of lake each point water sample is conveniently applied to this patent technique, bring the facility for lake water quality testing, though this patent can gather each point water sample in the lake, but only gather the same degree of depth water sample in each area, can't gather the different degree of depth water sample in this area, thereby lead to its water sample collection not comprehensive enough. Therefore, the technical personnel in the field provide an on-line sampling device for regional lake water quality detection, so as to solve the problems in the background technology.

Disclosure of Invention

The invention aims to provide an online sampling device for regional lake water quality detection, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an online sampling device for regional lake water quality detection comprises a hull, a front transverse plate and a rear transverse plate, wherein the front transverse plate is located at the front end of the hull, the rear transverse plate is located at the rear end of the hull, an upper cabin is arranged between the front transverse plate and the rear transverse plate at the upper end of the hull, a lower cabin is arranged at the lower end of the upper cabin, a positioning inlet is formed in one side, located on the upper cabin, of the upper end of the lower cabin, and the sampling device further comprises a sampling mechanism, a turnover mechanism, a driving mechanism, a sample receiving mechanism and a blending mechanism;

the sampling mechanism comprises a plurality of connectors which are positioned on the upper surface of the front transverse plate at equal intervals, one end of each connector is connected with a sampling tube, and one end of each sampling tube is connected with a pull rod;

the turnover mechanism comprises a hose which is positioned on the lower surface of the front transverse plate and connected with the corresponding connector, the lower end of the hose is connected with a sampling tube, the front end of the ship body is positioned on the side surface of the sampling tube and connected with a connecting plate, and one end of the connecting plate penetrates through the interior of the ship body and is connected with a first motor;

the driving mechanism comprises a drawing plate connected with one end of a drawing rod, a connecting sleeve is mounted in the middle of the upper surface of the drawing plate, a main screw rod is sleeved inside the connecting sleeve, one end of the main screw rod is located on the upper surface of the rear transverse plate and connected with a second motor, and the other end of the main screw rod is located on the upper surface of the front transverse plate and connected with a fixing plate;

sample receiving mechanism is including being located the stock layout mouth of sampling pipe one end lower surface intercommunication, a port of stock layout mouth is provided with the jam, the one end of jam is connected with the second push pedal, two second push rods are installed to a side of diaphragm before the trailing flank both ends of second push pedal correspond, be provided with the sample collection box under the inside of cabin corresponds the location import under the stock layout mouth.

As a further scheme of the invention: sampling mechanism is still including the piston that the inside that is located the sampling pipe is close to the one end connection of pull pole, the one end of connector is linked together through hose and sampling pipe, and the other end of connector is linked together through pipeline and sampling pipe, the piston is the component of a rubber material, and the external diameter of piston and the internal diameter looks adaptation of sampling pipe, the sampling pipe is a hollow cylinder structure, and the other end of sampling pipe is the open type, sampling pipe and sampling pipe all are provided with a plurality of, a plurality of the length of sampling pipe scales up in proper order, every the internal diameter that the sampling pipe corresponds the connection scales up in proper order.

As a still further scheme of the invention: the one end of connecting plate is connected with the output of first motor, and the other end of connecting plate is connected through the pivot rotation with the side of hull, the lateral surface and the sampling pipe fixed surface of connecting plate are connected, the mounting height of connecting plate on the hull is less than the bottom in cabin down.

As a still further scheme of the invention: the second motor is fixed in the middle of the surface of the rear transverse plate through bolts, threads are arranged on the inner side face of the connecting sleeve and the outer side face of the main screw rod, the connecting sleeve is in threaded connection with the main screw rod, one end of the main screw rod is connected with the output end of the second motor, a rotating shaft is arranged at the joint of the other end of the main screw rod and the fixing plate, the drawing plate is connected with the main screw rod through the connecting sleeve, sliding blocks are arranged at the two ends of the lower surface of the drawing plate corresponding to the sliding rails, and the lower end of the drawing plate is in sliding connection with the ship body through the sliding.

As a still further scheme of the invention: the one end and the sampling pipe through connection of stock layout mouth, another port and the jam looks adaptation of stock layout mouth, it is the same with the number of stock layout mouth to block up, the second push pedal passes through second push rod fixed connection with preceding diaphragm, the one end of jam is provided with the connecting rod, and blocks up a side that is fixed in the second push pedal through the connecting rod and corresponds the stock layout mouth, it is the rubber material to block up.

As a still further scheme of the invention: the allocation mechanism comprises two first push rods correspondingly arranged on one side wall in the upper cabin, one end of each first push rod is connected with a first push plate, one side wall in the lower cabin is correspondingly connected with two third push rods, and one end of each third push rod is located below the positioning inlet and connected with a third push plate.

As a still further scheme of the invention: the sample collection box is provided with a plurality of, sets up in the inside of last cabin respectively side by side, the last port of location import is the tilting, and the size of location import slightly is greater than the size of sample collection box, first push pedal is fixed in a inside lateral wall of last cabin through first push rod, the third push pedal is fixed in a inside lateral wall of cabin down through the third push rod, a plurality of introduction port has been seted up under the upper surface of sample collection box corresponds the mouth of arranging the appearance, and the inside of sample collection box corresponds introduction port department and separates and have a plurality of storage appearance storehouses.

As a still further scheme of the invention: the utility model discloses a ship, including hull, control box, power box, remote connection module, power box, control box, the screw is installed in the correspondence of both sides middle part lower extreme of hull, and is provided with the power box on one side of the upper surface of hull, the control box is installed to the upper surface opposite side of hull, the internally mounted of control box has remote connection module, and one side that the inside of control box is close to remote connection module is provided with main control chip, the internally mounted of.

Compared with the prior art, the invention has the beneficial effects that: according to the on-line sampling device for regional lake water quality detection, during actual operation, through the design that the plurality of turnover sampling pipes are matched with the sampling pipes, water samples at different depths in the region can be collected at one time, the collected water samples can be automatically collected through the matching of the sampling pipes and a sample collecting mechanism, the sample collecting boxes are automatically replaced, multiple times of collection can be conveniently carried out, the collection efficiency is improved, the water samples in multiple regions in the lake can be collected at one time, multiple shores are not needed, intelligent remote control sampling is achieved, the water samples are automatically collected, the operation is simple and convenient, and the device is suitable for on-line collection of the water samples in the large-scale lake.

Drawings

FIG. 1 is a schematic structural diagram of an on-line sampling device for regional lake water quality detection;

FIG. 2 is a schematic drawing showing the extension of a sampling pipe in an on-line sampling device for regional lake water quality detection;

FIG. 3 is a schematic structural diagram of a sampling mechanism in an on-line sampling device for regional lake water quality detection;

FIG. 4 is a schematic diagram of an arrangement of sample collection boxes in an on-line sampling device for regional lake water quality detection;

fig. 5 is a schematic structural diagram of an upper cabin and a lower cabin in an on-line sampling device for regional lake water quality detection.

In the figure: 1. a hull; 2. a front cross plate; 3. a rear transverse plate; 4. a sampling tube; 5. a connecting plate; 6. a hose; 7. a connector; 8. a sampling tube; 9. getting on the cabin; 10. a first motor; 11. a slide rail; 12. a drawing plate; 13. a control box; 14. a first push rod; 15. a first push plate; 16. a second motor; 17. a main screw; 18. a fixing plate; 19. a power supply box; 20. a propeller; 21. a pull rod; 22. a connecting sleeve; 23. a slider; 24. a remote connection module; 25. a main control chip; 81. a sample discharge port; 82. a second push plate; 83. a piston; 84. blocking; 85. a second push rod; 91. positioning an inlet; 92. a sample collection cartridge; 93. taking the ship out of the cabin; 94. a third push plate; 95. and a third push rod.

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.

Referring to fig. 1 to 5, in the embodiment of the invention, an online sampling device for water quality detection of a lake in the region comprises a hull 1, a front transverse plate 2 located at the front end of the hull 1 and a rear transverse plate 3 located at the rear end of the hull 1, an upper cabin 9 is arranged between the front transverse plate 2 and the rear transverse plate 3 at the upper end of the hull 1, a lower cabin 93 is arranged at the lower end of the upper cabin 9, a positioning inlet 91 is arranged at one side of the upper cabin 93 at the upper end of the upper cabin 9, propellers 20 are correspondingly arranged at the lower ends of the middle parts of two sides of the hull 1, a power supply box 19 is arranged at one side of the upper surface of the hull 1, a control box 13 is arranged at the other side of the upper surface of the hull 1, a remote connection module 24 is arranged inside the control box 13, a main control chip 25 is arranged at one side of the inside of the control box 13 close to the remote connection module 24, a storage battery is arranged, thereby realizing the remote control to the hull 1, and the sampling device also comprises a sampling mechanism, a turnover mechanism, a driving mechanism, a sample receiving mechanism and a blending mechanism.

The sampling mechanism comprises a plurality of connectors 7 which are arranged on the upper surface of the front transverse plate 2 at equal intervals, one end of each connector 7 is connected with a sampling tube 8, one end of each sampling tube 8 is connected with a pull rod 21, the sampling mechanism also comprises a piston 83 which is arranged inside each sampling tube 8 and is connected with one end close to the pull rod 21, one end of each connector 7 is communicated with the sampling tube 4 through a hose 6, the other end of each connector 7 is communicated with the sampling tube 8 through a pipeline, the piston 83 is a rubber component, the outer diameter of the piston 83 is matched with the inner diameter of the sampling tube 8, each sampling tube 4 is of a hollow cylinder structure, the other end of each sampling tube 4 is of an open type, the sampling tubes 4 and the sampling tubes 8 are both provided with a plurality of sampling tubes 4, the lengths of the sampling tubes 4 are sequentially increased, the inner diameters of the sampling tubes 8 which are correspondingly connected with each sampling tube 4 are sequentially increased, and, send control command through remote controller, control second motor 16 work through main control chip 25, and then drive the lead screw 17 by second motor 16 and rotate, therefore, it carries out lateral shifting on its surface to drive connecting sleeve 22 through lead screw 17, and then connecting sleeve 22 can drive pull pole 21 through pull board 12 to the pull of second motor 16 direction, thereby make piston 83 move to its other one end by the one end in the sampling pipe 8, and then receive the pressure influence in the sampling pipe 8, can inhale the water sample in the region by sampling pipe 4 one end, thereby the suction is to in the sampling pipe 8, what need explain, the inside size of sampling pipe 8 can increase progressively according to the length of sampling pipe 4, thereby ensure that the pressure of its inside extraction can be with water by sampling pipe 4 suction in the sampling pipe 8.

The turnover mechanism comprises a hose 6 which is positioned on the lower surface of a front transverse plate 2 and connected with a connector 7, the lower end of the hose 6 is connected with a sampling tube 4, the front end of a ship body 1 is connected with a connecting plate 5 on the side surface of the sampling tube 4, one end of the connecting plate 5 penetrates through the interior of the ship body 1 and is connected with a first motor 10, one end of the connecting plate 5 is connected with the output end of the first motor 10, the other end of the connecting plate 5 is rotatably connected with the side surface of the ship body 1 through a rotating shaft, the outer side surface of the connecting plate 5 is fixedly connected with the surface of the sampling tube 4, the mounting height of the connecting plate 5 on the ship body 1 is lower than the bottom of a lower cabin 93, when sampling is needed, the first motor 10 is controlled to rotate forwards through a main control chip 25, so that the connecting plate 5 is driven to be turned over to, so that sampling tubes 4 of different lengths can be used with water at different depths in the region.

The driving mechanism comprises a drawing plate 12 connected with one end of a drawing rod 21, a connecting sleeve 22 is installed in the middle of the upper surface of the drawing plate 12, a main screw 17 is sleeved inside the connecting sleeve 22, one end of the main screw 17 is located on the upper surface of a rear transverse plate 3 and connected with a second motor 16, the other end of the main screw 17 is located on the upper surface of a front transverse plate 2 and connected with a fixed plate 18, the second motor 16 is fixed in the middle of the surface of the rear transverse plate 3 through bolts, threads are arranged on the inner side surface of the connecting sleeve 22 and the outer side surface of the main screw 17, the connecting sleeve 22 is in threaded connection with the main screw 17, one end of the main screw 17 is connected with the output end of the second motor 16, a rotating shaft is arranged at the connection position of the other end of the main screw 17 and the fixed plate 18, the drawing plate 12 is connected with the main screw 17 through the, the lower end of the pull plate 12 is connected with the ship body 1 in a sliding mode through the sliding block 23 and the sliding rail 11, during sampling, the forward and reverse rotation of the main screw rod 17 is driven through the forward and reverse rotation of the second motor 16, and therefore the reciprocating movement of the connecting sleeve 22 on the main screw rod 17 is controlled, the pull rod 21 is driven through the pull plate 12 to be pulled outwards and pushed inwards in the sampling pipe 8, and the water sample is extracted and pushed out of the sampling pipe 4 sequentially.

The sample receiving mechanism comprises a sample outlet 81 which is positioned at the lower surface of one end of the sampling pipe 8 and communicated with the lower surface, a plug 84 is arranged at one end of the sample outlet 81, one end of the plug 84 is connected with a second push plate 82, two second push rods 85 are arranged at two ends of the rear side surface of the second push plate 82 corresponding to one side surface of the front cross plate 2, a sample collecting box 92 is arranged right below the sample outlet 81 and positioned in the lower cabin 93 and right below a corresponding positioning inlet 91, one end of the sample outlet 81 is communicated with the sampling pipe 8, the other end of the sample outlet 81 is matched with the plug 84, the number of the plug 84 and the number of the sample outlet 81 are the same, the second push plate 82 is fixedly connected with the front cross plate 2 through the second push rods 85, one end of the plug 84 is provided with a connecting rod, the plug 84 is fixed on one side surface of the second push plate 82 through the connecting rod and corresponds to the sample outlet 81, the plug 84 is made, the second push rod 85 is controlled to retract through the main control chip 25, and then the plug 84 is pulled out through the sample discharging port 81 through the second push plate 82, so that a water sample in the sample taking pipe 8 is discharged through the sample discharging port 81 and falls into the sample collecting box 92 right below the sample taking pipe, and after the water sample is discharged, the second push rod 85 is controlled to extend out, so that the plug 84 is plugged into the sample discharging port 81 again.

The preparation mechanism comprises two first push rods 14 correspondingly arranged on one side wall in the upper cabin 9, one end of each first push rod 14 is connected with a first push plate 15, one side wall in the lower cabin 93 is correspondingly connected with two third push rods 95, one end of each third push rod 95 is positioned below the positioning inlet 91 and is connected with a third push plate 94, the sample collection boxes 92 are provided with a plurality of sample collection boxes and are respectively arranged in the upper cabin 9 in parallel, the upper ports of the positioning inlets 91 are inclined, the size of the positioning inlets 91 is slightly larger than that of the sample collection boxes 92, the first push plates 15 are fixed on one side wall in the upper cabin 9 through the first push rods 14, the third push plates 94 are fixed on one side wall in the lower cabin 93 through the third push rods 95, the upper surfaces of the sample collection boxes 92 are provided with a plurality of sample injection ports right below the sample discharge ports 81, and a plurality of sample storage bins are separated at the corresponding ports in the sample collection boxes 92, after the sample collection box 92 receives the water sample in the sampling pipe 8, the third push rod 95 is controlled to push the third push plate 94, the sample collection box 92 which receives the water sample is pushed into the lower cabin 93, then the first push rod 14 is controlled to push the first push plate 15, so that the empty sample collection boxes 92 which are arranged in parallel in the upper cabin 9 and do not receive the water sample are pushed towards one end inside the upper cabin 9, the empty sample collection box 92 close to the positioning inlet 91 is made to fall into the positioning inlet 91, and then the positioning inlet 91 guides and positions the empty sample collection boxes so that the empty sample collection boxes fall into the lower part corresponding to the positioning inlet 91 in the lower cabin 93, so that the empty sample collection boxes are sampled and used again, and one end inside the lower cabin 93 is provided with the outlet of the sample collection box 92, so that the sample collection boxes 92 which contain the water sample can be taken out conveniently.

The working principle of the invention is as follows: when the invention is used, the concrete operation is as follows;

A. the main control chip 25 is connected with a remote controller through a remote connection module 24, then the ship body 1 is placed in an area lake, the ship body 1 is controlled to run to different areas in the lake through controlling, when the ship body reaches a specified area, an instruction is generated to the main control chip 25 through the remote controller, the main control chip 25 controls the second motor 16 to rotate reversely, the second motor 16 drives the main screw 17 to rotate reversely, so that the drawing plate 12 drives the drawing rod 21 to push the sampling pipe 8, and the piston 83 performs a sealing pushing and pressing effect, so that the pressure is generated in the sampling pipe 4, and the originally entering water in the sampling pipe 4 can be conveniently pushed out;

B. after the water in the sampling pipe 4 is discharged, the main control chip 25 controls the first motor 10 to rotate in the forward direction, so that the connecting plate 5 is driven to turn over from a position parallel to the ship body 1 to a position perpendicular to the ship body 1, and the sampling pipe 4 originally parallel to the bottom of the ship body 1 is turned over to be perpendicular to the ship body 1, so that the sampling pipes 4 with different lengths can extend into different depths in the area;

C. then, the second motor 16 is controlled to rotate forwardly, the second motor 16 drives the main screw 17 to rotate, the main screw 17 drives the connecting sleeve 22 to move transversely on the surface of the connecting sleeve, and then the connecting sleeve 22 drives the pull rod 21 to pull towards the second motor 16 through the pull plate 12, so that the piston 83 moves from one end of the sampling tube 8 to the other end of the sampling tube, and then the plurality of sampling tubes 8 are influenced by pressure, water samples in the area can be sucked from one ends of the sampling tubes 4 with different depths, and then the water samples are sucked into the sampling tubes 8;

D. further, after the water sample in the area is pumped into the sampling pipe 8, the second motor 16 is turned off, then the second push rod 85 is controlled to retract, the plug 84 is pumped out from the sample discharge port 81 through the second push plate 82, so that the water sample in the sampling pipe 8 is discharged through the sample discharge port 81 and falls into the sample collection box 92 right below the sample collection box, and after the water sample is discharged, the second push rod 85 is controlled to extend out, and the plug 84 is plugged into the sample discharge port 81 again;

E. after the sample collection box 92 receives the water sample in the sampling pipe 8, the third push rod 95 is controlled to push the third push plate 94, the sample collection box 92 which receives the water sample is pushed into the lower cabin 93, then the first push rod 14 is controlled to push the first push plate 15, so that the empty sample collection boxes 92 which are arranged in parallel in the upper cabin 9 and do not receive the water sample are pushed towards one end in the upper cabin 9, the empty sample collection box 92 close to the positioning inlet 91 falls into the positioning inlet 91, and the positioning inlet 91 guides and positions the empty sample collection boxes to fall into the lower part, corresponding to the positioning inlet 91, of the lower cabin 93, so that the sampling can be performed again;

F. after the collection is finished, the first motor 10 is controlled to rotate reversely, the connecting plate 5 is turned to be parallel to the ship body 1 from a position vertical to the ship body 1, the sampling pipe 4 which is originally vertical to the ship body 1 is turned to the bottom of the ship body 1 and is parallel to the bottom of the ship body 1, the ship body 1 can conveniently run to different areas again for sampling, and the situation that the ship body 1 is easily obstructed by the sampling pipe 4 in a vertical state is avoided;

G. finally, the operation is repeated to finish sampling the water in different areas in the lake in sequence, and the water in different depths of the area can be sampled, so that the operation is simple and convenient, the intelligent operation is realized, the time and the labor are saved, and the method is suitable for the adoption work of large-scale lakes.

It should be noted that: the first motor 10 and the second motor 16 of the invention both adopt MCA17N23-RS0B0 servo motors, the models of the first push rod 14, the second push rod 85 and the third push rod 95 are ANT-52, and the main control chip 25 adopts an STM32 chip.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An online sampling device for detecting the water quality of a regional lake comprises a hull (1), a front transverse plate (2) and a rear transverse plate (3), wherein the front transverse plate (2) is located at the front end of the hull (1), the rear transverse plate (3) is located at the rear end of the hull (1), the upper end of the hull (1) is located between the front transverse plate (2) and the rear transverse plate (3) and is provided with an upper cabin (9), the lower end of the upper cabin (9) is provided with a lower cabin (93), one side, located on the upper cabin (9), of the upper end of the lower cabin (93) is provided with a positioning inlet (91), and the sampling device further comprises a sampling mechanism, a turnover mechanism, a driving mechanism, a sample receiving mechanism and a blending mechanism;

the sampling mechanism comprises a plurality of connectors (7) which are positioned on the upper surface of the front transverse plate (2) at equal intervals, one end of each connector (7) is connected with a sampling pipe (8), and one end of each sampling pipe (8) is connected with a pull rod (21);

the turnover mechanism comprises a hose (6) which is positioned on the lower surface of the front transverse plate (2) and connected with a connector (7), the lower end of the hose (6) is connected with a sampling pipe (4), the front end of the ship body (1) is positioned on the side surface of the sampling pipe (4) and connected with a connecting plate (5), and one end of the connecting plate (5) penetrates through the inside of the ship body (1) and is connected with a first motor (10);

the driving mechanism comprises a drawing plate (12) connected with one end of a drawing rod (21), a connecting sleeve (22) is installed in the middle of the upper surface of the drawing plate (12), a main screw (17) is sleeved inside the connecting sleeve (22), one end of the main screw (17) is located on the upper surface of the rear transverse plate (3) and connected with a second motor (16), and the other end of the main screw (17) is located on the upper surface of the front transverse plate (2) and connected with a fixing plate (18);

sample receiving mechanism is including arranging appearance mouth (81) that is located sampling pipe (8) one end lower surface intercommunication, a port of arranging appearance mouth (81) is provided with and blocks up (84), the one end that blocks up (84) is connected with second push pedal (82), two second push rods (85) are installed to the side that the trailing flank both ends of second push pedal (82) correspond preceding diaphragm (2), be provided with sample collection box (92) under the inside correspondence location import (91) of cabin (93) under arranging appearance mouth (81).

2. The on-line sampling device for regional lake water quality detection according to claim 1, it is characterized in that the sampling mechanism also comprises a piston (83) which is positioned in the sampling tube (8) and is connected with one end of the drawing rod (21), one end of the connector (7) is communicated with the sampling pipe (4) through a hose (6), the other end of the connector (7) is communicated with the sampling pipe (8) through a pipeline, the piston (83) is a rubber component, the outer diameter of the piston (83) is matched with the inner diameter of the sampling pipe (8), the sampling pipe (4) is of a hollow cylinder structure, and the other end of sampling pipe (4) is the open type, sampling pipe (4) and sampling pipe (8) all are provided with a plurality of, a plurality of the length of sampling pipe (4) increases progressively in proper order, every the internal diameter that sampling pipe (8) that sampling pipe (4) correspond to connect increases progressively in proper order.

3. The on-line sampling device for regional lake water quality detection according to claim 1, wherein one end of the connecting plate (5) is connected with the output end of the first motor (10), the other end of the connecting plate (5) is rotatably connected with the side surface of the ship body (1) through a rotating shaft, the outer side surface of the connecting plate (5) is fixedly connected with the surface of the sampling pipe (4), and the installation height of the connecting plate (5) on the ship body (1) is lower than the bottom of the lower cabin (93).

4. The on-line sampling device for regional lake water quality detection according to claim 1, it is characterized in that the second motor (16) is fixed at the middle part of the surface of the rear transverse plate (3) through a bolt, the inner side surface of the connecting sleeve (22) and the outer side surface of the main screw rod (17) are both provided with threads, the connecting sleeve (22) is in threaded connection with the main screw (17), one end of the main screw (17) is connected with the output end of the second motor (16), and a rotating shaft is arranged at the joint of the other end of the main screw rod (17) and the fixed plate (18), the drawing plate (12) is connected with the main screw rod (17) through a connecting sleeve (22), sliding blocks (23) are arranged at the two ends of the lower surface of the pull plate (12) corresponding to the sliding rails (11), the lower end of the drawing plate (12) is connected with the ship body (1) in a sliding mode through a sliding block (23) and a sliding rail (11).

5. The online sampling device for regional lake water quality testing of claim 1, characterized in that, the one end and the sampling pipe (8) through connection of stock layout mouth (81), another port and the jam (84) looks adaptation of stock layout mouth (81), the number of jam (84) and stock layout mouth (81) is the same, second push pedal (82) passes through second push rod (85) fixed connection with preceding diaphragm (2), the one end of jam (84) is provided with the connecting rod, and blocks up (84) and be fixed in a side of second push pedal (82) and correspond stock layout mouth (81) through the connecting rod, it is rubber material to block up (84).

6. The on-line sampling device for regional lake water quality detection according to claim 1, wherein the adjusting mechanism comprises two first push rods (14) correspondingly installed on one side wall inside the upper cabin (9), one end of each first push rod (14) is connected with a first push plate (15), one side wall inside the lower cabin (93) is correspondingly connected with two third push rods (95), and one end of each third push rod (95) is located below the positioning inlet (91) and is connected with a third push plate (94).

7. The on-line sampling device for regional lake water quality testing of claim 6, characterized in that, the sample collection box (92) is provided with a plurality of, sets up in the inside of last cabin (9) side by side respectively, the last port of location import (91) is the tilting, and the size of location import (91) slightly is greater than the size of sample collection box (92), first push pedal (15) are fixed in a inside lateral wall of last cabin (9) through first push rod (14), third push pedal (94) are fixed in a inside lateral wall of cabin (93) down through third push rod (95), the upper surface of sample collection box (92) has seted up a plurality of introduction ports under corresponding sample discharge port (81), and the inside of sample collection box (92) has separated a plurality of storage sample storehouses corresponding to introduction port.

8. The on-line sampling device for detecting the water quality of the regional lake according to claim 1, characterized in that propellers (20) are correspondingly installed at the lower ends of the middle parts of the two sides of the hull (1), a power supply box (19) is arranged on one side of the upper surface of the hull (1), a control box (13) is installed on the other side of the upper surface of the hull (1), a remote connection module (24) is installed inside the control box (13), a main control chip (25) is arranged on one side, close to the remote connection module (24), of the inside of the control box (13), and a storage battery is installed inside the power supply box (19).