CN112857890B

CN112857890B - Water quality testing sampling device with isokinetic acquisition port

Info

Publication number: CN112857890B
Application number: CN202110216050.3A
Authority: CN
Inventors: 朱方
Original assignee: Hunan Jiuzhaihe Food Co ltd
Current assignee: Hunan Jiuzhaihe Food Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2022-12-09
Anticipated expiration: 2041-02-26
Also published as: CN112857890A

Abstract

The invention relates to the related field of coatings, and discloses a water quality detection sampling device with an isokinetic acquisition port, which comprises a sampler, wherein a collection bottle cavity is formed in the sampler, a collection bottle is placed in the collection bottle cavity, a detection and calibration component is arranged at the bottom of the sampler, the detection component can detect the direction and the flow rate of water flow and adjust the detection and calibration component to reach the optimal detection angle, a flow guide component is arranged on the inner wall of one side of the collection bottle cavity and above the collection bottle, and an acquisition component is arranged on one side of the outer end surface of the sampler, the detection and calibration component can adjust the acquisition direction and the acquisition area of the acquisition component according to detection data, and the water quality detection sampling device with the isokinetic acquisition port enables the average flow rate of the sampling port to be the same as the flow rate of laminar flow, so that the isokinetic sampling effect is achieved, the accuracy of water sample acquisition is improved, and a flow rate detector and the sampling port are synchronously adjusted according to the direction of the water flow.

Description

Water quality testing sampling device with isokinetic collection port

Technical Field

The invention relates to the technical field of water quality detection, in particular to a water quality detection sampling device with an isokinetic acquisition port.

Background

In the process of water quality detection, firstly, water samples in a detected water area need to be collected, a sampling device is generally placed in the water area, water flows into a container to be collected, however, when the water samples in a flowing water area are collected, as insoluble matters and substances with obviously different specific gravities from water are influenced by the flow velocity of a collecting port, the concentration of the insoluble matters deviates from the concentration of the real water flow, and therefore 'isokinetic sampling' needs to be adopted.

When using general collection system to carry out the collection of water sample, because the water velocity of different watersheds is different, even be used in the isokinetic sampling mouth that is suitable for under certain velocity of flow, the isokinetic that still will change after the velocity of flow changes, lead to the operation comparatively loaded down with trivial details, and place collection system's in rivers collection mouth very probably not face rivers direction and guarantee perpendicularly, can lead to rivers not the entering of avoiding of parallel collection mouth, rivers take place the striking, form the vortex etc, influence the degree of accuracy of collection.

Disclosure of Invention

The water quality detection sampling device with the isokinetic acquisition port, provided by the invention, is more accurate in acquisition of a flowing water area based on an isokinetic acquisition principle, and solves the problems that the isokinetic acquisition port is complicated to replace and the water inlet surface of the acquisition port is not vertical to the water flow direction under different flow velocities.

The invention provides the following technical scheme: the utility model provides a water quality testing sampling device with mouth is gathered to isokinetic, includes the sampler, set up the receiving flask chamber in the sampler, the receiving flask has been placed to the receiving flask intracavity, the sampler bottom is equipped with detection calibration subassembly, detection subassembly can detect the direction and the velocity of flow of rivers, and the adjustment detection calibration subassembly reaches the best and detects the angle, receiving flask chamber one side inner wall just is located the receiving flask top is equipped with the water conservancy diversion subassembly, outer terminal surface one side of sampler is equipped with the collection subassembly, the detection calibration subassembly can be adjusted according to the measured data the collection direction and the collection area of collection subassembly, the water that the collection subassembly was gathered passes through the water conservancy diversion subassembly is carried extremely in the receiving flask.

The choice, the sampler upside is placed and is equipped with the sampler lid, thereby the sampler lid can be covered and detain thereby seal the sampler upside on the sampler, the fixed connecting rod that is equipped with of terminal surface bilateral symmetry under the sampler lid, both sides terminal surface under the connecting rod with fixed connection between the receiving flask up end.

The detection and calibration assembly comprises a rotary disc cavity which is arranged in the sampler and on the lower side of the collecting bottle cavity, a direction rotating shaft is arranged in the top wall of the rotary disc cavity in a rotating mode, a rotary disc is fixedly arranged on the outer circular surface of the direction rotating shaft, direction detection blades are fixedly arranged on the lower end surface of the direction rotating shaft and have a certain streamline shape, the direction detection blades can be kept parallel to the water flow direction in water flow, arc-shaped limiting grooves are formed in the outer circular surface of the rotary disc and above longer sections of the direction detection blades, limiting blocks are fixedly arranged on the circumferential wall of the rotary disc cavity, the limiting blocks are connected with the limiting grooves in a sliding mode, the rotating range of the rotary disc is limited, and the longer ends of the direction detection blades are located in the downward flow of the water flow when the direction detection blades are in the initial state.

Selected, the terminal surface just is in under the carousel the direction detects the fixed rivers detector that is equipped with in short one section top of blade, the velocity of flow that rivers detector can detect rivers, just be in the terminal surface under the carousel rivers detector is kept away from clearance board chamber has been seted up to direction pivot one side, the intracavity of clearance board slides and is equipped with the clearance board, the clearance board can clear up the debris in rivers detector the place ahead avoids the debris to influence the detection of rivers detector, clearance board chamber is parallel it is equipped with the clearance screw rod to rotate between the both sides wall of clearance board, the clearance screw rod with threaded connection between the clearance board, the carousel internal fixation is equipped with the transmission shaft, clearance screw rod one end power connect in the transmission shaft.

Carefully, the collection subassembly is including offering in the sampler and be in the rotation chamber that the rivers detector is opened to the same side, it is equipped with the transmission shaft to rotate chamber lower wall internal rotation, it is equipped with the axis of rotation to rotate chamber upper wall internal rotation, the axis of rotation with fixedly connected with turning block between the transmission shaft, the collecting flask chamber with be equipped with the driving pulley chamber between the carousel chamber, the transmission shaft lower extreme extends to driving pulley intracavity, direction pivot upper end excircle face with be fixed respectively on the outer disc of transmission shaft lower extreme and be equipped with driving pulley, both sides around being equipped with driving belt between the driving pulley, both sides drive ratio between the driving belt is one to one, promptly the direction pivot rotate with the transmission shaft rotates the same angle.

Carefully, the turning block is kept away from fixed sampling piece that is equipped with on the collecting bottle chamber terminal surface, the sampling mouth has been seted up in the sampling piece, gliding sampling overhead gage that is equipped with about can in the sampling mouth, sampling overhead gage up end just is keeping away from the fixed perpendicular baffle that is equipped with in sampler lid one side, perpendicular baffle is close to collecting bottle chamber terminal surface with the sampling piece is kept away from offset between the collecting bottle chamber terminal surface, perpendicular baffle can seal the sampling mouth orientation is kept away from the opening of collecting bottle chamber direction, control thereby the area of water inlet is adjusted in reciprocating of perpendicular baffle.

Carefully, state perpendicular baffle and be close to the slider groove has been seted up in collecting bottle chamber terminal surface, the sampling piece is kept away from on the collecting bottle chamber terminal surface and be in the fixed slider that is equipped with of sample connection upside, the slider can slide in the slider groove, perpendicular baffle is close to the fixed control lifter plate that is equipped with of collecting bottle chamber terminal surface upside, the rotation is equipped with the power shaft in the sampling piece terminal surface, the power shaft with threaded connection between the control lifter plate, just be in the sampling piece the fixed control motor that is equipped with of sample connection upside, power shaft lower extreme power connect in the control motor up end, the control motor by its output is controlled according to the rivers velocity of flow that detects to the rivers detector.

The sampling device is fine, the diversion component comprises a collecting bottle cavity and a containing cavity between the rotating cavities, the containing cavity is communicated with the collecting bottle cavity, a swinging rotating shaft is arranged between two side walls of the containing cavity in a rotating mode, a water outlet pipe is fixedly arranged on the outer circular surface of the swinging rotating shaft, a water outlet channel is formed in the water outlet pipe, a sampling port is communicated with the inside of the rotating block and is provided with a water inlet channel, the water inlet channel is communicated with the water outlet channel, a connecting hose is arranged in the water outlet channel, a baffle is fixedly arranged on the upper wall of the containing cavity, the baffle is internally provided with a water outlet pipe upper end face close to the upper end face of the water outlet pipe, a control electromagnet capable of attracting in an opposite direction is fixedly arranged on one side of the swinging rotating shaft respectively, and the lower end face of the water outlet pipe is far away from the containing cavity, and a reset spring is fixedly connected between one side wall of the collecting bottle cavity.

Carefully, the inlet channel upper wall is kept away from collector bottle chamber one side intercommunication is equipped with the closing plate chamber, the slidable closing plate that is equipped with in the closing plate chamber, the closing plate can seal completely inlet channel, the closing plate up end with fixedly connected with closing plate spring between the closing plate chamber upper wall, the closing plate up end with fixedly connected with connection rope between the terminal surface under the outlet pipe.

The invention has the following beneficial effects:

1. the invention can collect water samples, and correspondingly adjusts the area of the sampling port by detecting the flow velocity of water flow in a flowing water area, so that the average flow velocity of the sampling port is the same as the flow velocity of laminar flow, thereby achieving the effect of isokinetic sampling and improving the accuracy of water sample collection.

2. The invention can adjust the direction of the flow velocity detector according to the direction of the water flow, improve the accuracy of the flow velocity detection, and synchronously adjust the sampling port until the sampling surface is vertical to the direction of the water flow, thereby avoiding the impact of the water flow caused by the unparallel water flow flowing into the sampling port and the influence on the accuracy of the acquisition.

Drawings

The invention is further illustrated by the following examples in conjunction with the drawings.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 isbase:Sub>A schematic view of the structure A-A in FIG. 1;

FIG. 3 is an enlarged view of the point B in FIG. 1;

FIG. 4 is an enlarged view of FIG. 1 at C;

fig. 5 is an enlarged schematic view of fig. 1 at D.

In the figure: 11. a sampler; 12. a collection bottle cavity; 13. a sampler cover; 14. a connecting rod; 15. a collection bottle; 17. a turntable cavity; 18. a direction rotating shaft; 19. a turntable; 20. a direction detecting blade; 21. a limiting groove; 22. a limiting block; 23. a water flow detector; 24. cleaning the plate cavity; 25. cleaning the screw; 26. cleaning the plate; 27. a drive pulley cavity; 28. a drive pulley; 29. a drive belt; 30. a drive shaft; 31. a receiving cavity; 32. swinging the rotating shaft; 33. a water outlet pipe; 34. a baffle plate; 35. controlling the electromagnet; 36. a water outlet channel; 37. connecting ropes; 38. a return spring; 39. a connecting hose; 40. a rotation chamber; 41. a rotating shaft; 42. rotating the block; 43. a water inlet channel; 44. closing the plate cavity; 45. a closing plate; 46. a closing plate spring; 47. sampling blocks; 48. a sampling port; 49. sampling a lifting baffle; 50. a vertical baffle; 51. a slider slot; 52. a slider; 53. controlling the lifting plate; 54. a power shaft; 55. and controlling the motor.

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. 1-5, a water quality detection sampling device with an isokinetic collection port comprises a sampler 11, wherein a collection bottle cavity 12 is formed in the sampler 11, a collection bottle 15 is placed in the collection bottle cavity 12, a detection and calibration assembly is arranged at the bottom of the sampler 11, the detection assembly can detect the direction and the flow rate of water flow and adjust the detection and calibration assembly to reach an optimal detection angle, a flow guide assembly is arranged on the inner wall of one side of the collection bottle cavity 12 and above the collection bottle 15, a collection assembly is arranged on one side of the outer end face of the sampler 11, the detection and calibration assembly can adjust the collection direction and the collection area of the collection assembly according to detection data, and water collected by the collection assembly is conveyed into the collection bottle 15 through the flow guide assembly.

Wherein, a sampler cover 13 is arranged on the upper side of the sampler 11, the sampler cover 13 can be covered and buckled on the sampler 11 so as to seal the upper side of the sampler 11, connecting rods 14 are symmetrically and fixedly arranged on the two sides of the lower end surface of the sampler cover 13, and the lower end surfaces of the connecting rods 14 on the two sides are fixedly connected with the upper end surface of the collecting bottle 15.

Wherein, it includes sets up in sampler 11 and be in the carousel chamber 17 of collecting vessel chamber 12 downside, the rotation of carousel chamber 17 roof is equipped with direction pivot 18, the fixed carousel 19 that is equipped with on the outer disc of direction pivot 18, the fixed direction that is equipped with of terminal surface detects blade 20 under the direction pivot 18, direction detects blade 20 and has certain streamlined, can keep parallel with the rivers direction in rivers, 19 in the outer disc of carousel and be in curved spacing groove 21 has been seted up to the longer one section top of direction detection blade 20, fixed stopper 22 that is equipped with on the circumference wall of carousel chamber 17, stopper 22 with sliding connection between the spacing groove 21 has restricted carousel 19's rotation range guarantees its longer one end is located the downflow of rivers when direction detects blade 20 initial condition.

Wherein, 19 lower terminal surface of carousel just is in the direction detects the fixed rivers detector 23 that is equipped with in short one section of top of blade 20, rivers detector 23 can detect the velocity of flow of rivers, 19 lower terminal surface of carousel just is in rivers detector 23 keeps away from clearance board chamber 24 has been seted up to direction pivot 18 one side, it is equipped with clearance board 26 to slide in clearance board chamber 24, clearance board 26 can clear up the debris in rivers detector 23 the place ahead avoids the debris influence the detection of rivers detector 23, clearance board chamber 24 is parallel it is equipped with clearance screw rod 25 to rotate between the both sides wall of clearance board 26, clearance screw rod 25 with threaded connection between the

clearance board

26, 19 internal fixation of carousel is equipped with transmission shaft 30, clearance screw rod 25 one end power connect in transmission shaft 30.

Wherein, the collection subassembly is including offering in sampler 11 and in the rotation chamber 40 that 23 syntropy of rivers detector was opened, it is equipped with transmission shaft 30 to rotate 40 lower wall internal rotations in chamber, it is equipped with axis of rotation 41 to rotate 40 upper wall internal rotations, axis of rotation 41 with fixedly connected with turning block 42 between the transmission shaft 30, collection bottle chamber 12 with be equipped with drive pulley chamber 27 between the carousel chamber 17, the transmission shaft 30 lower extreme extends to in the drive pulley chamber 27, the direction pivot 18 upper end excircle face with be fixed respectively on the outer disc of transmission shaft 30 lower extreme excircle face and be equipped with drive pulley 28, both sides around being equipped with drive belt 29 between the drive pulley 28, both sides drive ratio between the drive belt 29 is one, promptly the direction pivot 18 rotate with the same angle is rotated to drive shaft 30.

Wherein, the turning block 42 is kept away from fixed sampling piece 47 that is equipped with on the collecting bottle chamber 12 terminal surface, set up sampling opening 48 in the sampling piece 47, gliding sampling overhead guard 49 about the internal energy of sampling opening 48, sampling overhead guard 49 up end just is keeping away from the fixed perpendicular baffle 50 that is equipped with in sampler lid 13 one side, perpendicular baffle 50 is close to collecting bottle chamber 12 terminal surface with sampling piece 47 is kept away from offset between the collecting bottle chamber 12 terminal surface, perpendicular baffle 50 can seal the sampling opening 48 orientation is kept away from the opening of collecting bottle chamber 12 direction, control thereby perpendicular baffle 50 reciprocate the area of adjusting the water inlet.

A slide block slot 51 is formed in one end face of the vertical baffle 50 close to the collection bottle cavity 12, a slide block 52 is fixedly arranged on one end face of the sampling block 47 far away from the collection bottle cavity 12 and on the upper side of the sampling port 48, the slide block 52 can slide in the slide block slot 51, a control lifting plate 53 is fixedly arranged on the upper side of one end face of the vertical baffle 50 close to the collection bottle cavity 12, a power shaft 54 is rotatably arranged in the upper end face of the sampling block 47, the power shaft 54 is in threaded connection with the control lifting plate 53, a control motor 55 is fixedly arranged in the sampling block 47 and on the upper side of the sampling port 48, the lower end of the power shaft 54 is in power connection with the upper end face of the control motor 55, and the control motor 55 is controlled to output by the water flow detector 23 according to the detected water flow rate.

The flow guide assembly comprises a collecting bottle cavity 12 and a containing cavity 31 between rotating cavities 40, the containing cavity 31 is communicated with the collecting bottle cavity 12, a swinging rotating shaft 32 is arranged between two side walls of the containing cavity 31 in a rotating mode, a water outlet pipe 33 is fixedly arranged on the outer circular surface of the swinging rotating shaft 32, a water outlet passage 36 is formed in the water outlet pipe 33, a rotating block 42 is communicated with the sampling port 48 and provided with a water inlet passage 43, the water inlet passage 43 is communicated with a connecting hose 39 arranged between the water outlet passage 36 in a communicating mode, a baffle 34 is fixedly arranged on the upper wall of the containing cavity 31, a control electromagnet 35 capable of attracting in opposite directions is fixedly arranged in the baffle 34 and close to the upper end face of the water outlet pipe 33 on one side of the swinging rotating shaft 32, and a reset spring 38 is fixedly connected between the lower end face of the water outlet pipe 33 and the side wall of the collecting bottle cavity 12 in a storing mode and far away from the cavity 31.

Wherein, inhalant canal 43 upper wall is kept away from collecting bottle chamber 12 one side intercommunication is equipped with closure plate chamber 44, slidable is equipped with closure plate 45 in the closure plate chamber 44, closure plate 45 can seal completely inhalant canal 43, closure plate 45 up end with fixedly connected with closure plate spring 46 between the closure plate chamber 44 upper wall, closure plate 45 up end with fixedly connected with is connected rope 37 between the terminal surface under outlet pipe 33.

The working principle is as follows: in the initial state, the collection bottle 15 is not put into the collection bottle cavity 12, the sampler cover 13 is not covered on the sampler 11, the water outlet pipe 33 is contained in the collection cavity 31 to the maximum extent, the closing plate 45 is at the lower limit position, the connecting rope 37 is in the tensioning state, and the sampling lifting baffle 49 is at the upper limit position;

placing the collecting bottle 15 into the collecting bottle cavity 12, covering and buckling the sampler cover 13 on the upper end of the sampler 11, fixing the device, placing the device in the water flow to be sampled, and roughly making one side of the device provided with the sampling block 47 face the direction of water flow coming, then making the water flow drive the direction detection blade 20 to swing, the direction detection blade 20 swings to be parallel to the water flow direction, further driving the direction rotating shaft 18 to rotate and driving the rotating disc 19 to rotate, further making the limiting block 22 to deflect to a certain degree relative to the rotating disc 19, the rotating disc 19 rotates and drives the water flow detector 23 to rotate around the direction rotating shaft 18, making the water flow inlet of the water flow detector 23 face the direction of water flow coming, and starting the transmission shaft 30, driving the cleaning screw 25 to rotate through power connection and driving the cleaning plate 26 to move back and forth through threaded connection, thereby cleaning the impurities in front of the water flow inlet of the water flow detector 23, preventing interference to the water flow detection, meanwhile, the direction rotating shaft 18 rotates and drives the transmission belt wheel 28 fixed on the upper end thereof to rotate, further driving the belt 29 to drive the belt wheel 28 on the other side to rotate, thereby preventing the sampling block 42 from rotating and ensuring that the sampling block 23 rotates and the sampling block 23 to move to flow velocity and the sampling flow velocity to start to change with the sampling direction of the sampling flow, thereby ensuring that the sampling flow is not to flow direction of the sampling flow to be perpendicular to the sampling flow, and the sampling block 48, and the sampling block 23, and the sampling flow, and the sampling block to start to flow, and to flow velocity to be detected, the operation of the control motor 55 is controlled by the detected water flow velocity, the control motor 55 drives the power shaft 54 to rotate through power connection and drives the control lifting plate 53 to move up and down through thread connection, thereby driving the vertical baffle 50 to move up and down and driving the sampling lifting baffle 49 to move up and down, further driving the slide block 52 to slide up and down relatively along the slide block slot 51, thereby adjusting the area of the water inlet of the sampling port 48 according to the flow rate of the water flow, leading the collecting flow rate of the sampling port 48 to be consistent with the laminar flow rate, thereby achieving the effect of isodynamics, improving the sampling accuracy, controlling the electromagnet 35 to be electrified when the adjustment is completed, and the control electromagnet 35 in the baffle 34 drives the control electromagnet 35 in the water outlet pipe 33 to rotate around the swing rotating shaft 32 through opposite attraction of magnetic force, thereby driving the water outlet pipe 33 to rotate around the swing rotating shaft 32 towards the collecting bottle cavity 12, further driving the east swing rotating shaft 32 to rotate, thereby stretching the return spring 38 and moving the closing plate 45 upward through the connecting string 37, thereby compressing the closing plate spring 46, so that the two sides of the water inlet channel 43 are communicated, the water flow enters the water outlet channel 36 through the sampling port 48, the water inlet channel 43 and the connecting hose 39, then flows into the collection cavity 16 through the water outlet channel 36 to finish the collection, and the control electromagnet 35 is switched off after the collection is finished, the water outlet pipe 33 is driven to rotate around the swing rotating shaft 32 to the containing cavity 31 by the elastic force of the return spring 38, thereby completing the reset, the elastic force of the closing plate spring 46 drives the closing plate 45 to move downwards for reset, after the collection is completed, the device is taken out from the water flow, after the sampler cover 13 is opened and the collecting bottle 15 is lifted upwards, the water sample in the collecting bottle 15 can be subpackaged and detected.

The above embodiments are only for illustrating the technical idea and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the protection scope of the present invention by this. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a water quality testing sampling device with isokinetic collection mouth, includes sampler (11), its characterized in that: a collecting bottle cavity (12) is formed in the sampler (11), a collecting bottle (15) is placed in the collecting bottle cavity (12), a detection and calibration component is arranged at the bottom of the sampler (11), the detection and calibration component can detect the direction and the flow rate of water flow and adjust the detection and calibration component to reach an optimal detection angle, a flow guide component is arranged on the inner wall of one side of the collecting bottle cavity (12) and above the collecting bottle (15), a collecting component is arranged on one side of the outer end face of the sampler (11), the detection and calibration component can adjust the collecting direction and the collecting area of the collecting component according to detection data, and water collected by the collecting component is conveyed into the collecting bottle (15) through the flow guide component; a sampler cover (13) is placed on the upper side of the sampler (11), the sampler cover (13) can be buckled on the sampler (11) so as to seal the upper side of the sampler (11), connecting rods (14) are symmetrically and fixedly arranged on two sides of the lower end surface of the sampler cover (13), and the lower end surfaces of the connecting rods (14) on two sides are fixedly connected with the upper end surface of the collecting bottle (15); the detection and calibration assembly comprises a rotary disc cavity (17) which is arranged in the sampler (11) and is arranged on the lower side of the collecting bottle cavity (12), a direction rotating shaft (18) is rotationally arranged on the top wall of the rotary disc cavity (17), a rotary disc (19) is fixedly arranged on the outer circular surface of the direction rotating shaft (18), direction detection blades (20) are fixedly arranged on the lower end surface of the direction rotating shaft (18), the direction detection blades (20) have a certain streamline shape and can keep parallel to the water flow direction in water flow, an arc-shaped limiting groove (21) is formed in the outer circular surface of the rotary disc (19) and above a longer section of the direction detection blades (20), a limiting block (22) is fixedly arranged on the circumferential wall of the rotary disc cavity (17), the limiting block (22) is slidably connected with the limiting groove (21), the rotating range of the rotary disc (19) is limited, and the longer end of the direction detection blades (20) is located at the downward flow of the water flow when the direction detection blades are in the initial state; the lower end face of the rotary table (19) is fixedly provided with a water flow detector (23) above the direction detection blade (20) in a shorter section, the water flow detector (23) can detect the flow rate of water flow, a cleaning plate cavity (24) is formed in the lower end face of the rotary table (19) and is far away from one side of the direction rotating shaft (18) of the water flow detector (23), a cleaning plate (26) is arranged in the cleaning plate cavity (24) in a sliding mode, a cleaning screw (25) is arranged between two side walls of the cleaning plate (26) in a parallel mode in the cleaning plate cavity (24) in a rotating mode, the cleaning screw (25) is in threaded connection with the cleaning plate (26), a transmission shaft (30) is fixedly arranged in the rotary table (19), and one end of the cleaning screw (25) is in power connection with the transmission shaft (30); the collecting assembly comprises a rotating cavity (40) which is arranged in the sampler (11) and is opened on the same side of the water flow detector (23), a transmission shaft (30) is arranged in the lower wall of the rotating cavity (40) in a rotating mode, a rotating shaft (41) is arranged in the upper wall of the rotating cavity (40) in a rotating mode, a rotating block (42) is fixedly connected between the rotating shaft (41) and the transmission shaft (30), a transmission pulley cavity (27) is arranged between the collecting bottle cavity (12) and the rotating disc cavity (17), the lower end of the transmission shaft (30) extends into the transmission pulley cavity (27), the upper end of the direction rotating shaft (18) extends into the transmission pulley cavity (27), transmission belt pulleys (28) are respectively and fixedly arranged on the outer circular surface of the upper end of the direction rotating shaft (18) and the outer circular surface of the lower end of the transmission shaft (30), a transmission belt (29) is wound between the transmission belt pulleys (28) on two sides, and the transmission ratios between the transmission belts (29) on two sides are one to one, namely, the direction rotating shaft (18) and the transmission shaft (30) rotate at the same angle; a sampling block (47) is fixedly arranged on one end face, far away from the collecting bottle cavity (12), of the rotating block (42), a sampling opening (48) is formed in the sampling block (47), a sampling lifting baffle plate (49) is arranged in the sampling opening (48) in a manner of sliding up and down, a vertical baffle plate (50) is fixedly arranged on the upper end face of the sampling lifting baffle plate (49) and on one side, far away from the sampler cover (13), of the vertical baffle plate (50), one end face, close to the collecting bottle cavity (12), of the vertical baffle plate (50) is abutted to one end face, far away from the collecting bottle cavity (12), of the sampling block (47), the vertical baffle plate (50) can seal an opening, facing the direction far away from the collecting bottle cavity (12), of the sampling opening, and the vertical baffle plate (50) is controlled to move up and down so as to adjust the area of a water inlet; perpendicular baffle (50) are close to collection bottle chamber (12) terminal surface has seted up slider groove (51) in, sampling piece (47) are kept away from on collection bottle chamber (12) terminal surface and sampling mouth (48) upside is fixed and is equipped with slider (52), slider (52) can slide in slider groove (51), perpendicular baffle (50) are close to collection bottle chamber (12) terminal surface upside is fixed and is equipped with control lifter plate (53), sampling piece (47) up end rotates in and is equipped with power shaft (54), power shaft (54) with threaded connection between control lifter plate (53), in sampling piece (47) and sampling mouth (48) upside is fixed and is equipped with control motor (55), power shaft (54) lower extreme power connect in control motor (55) up end, control motor (55) by water flow detector (23) control its output according to the rivers that detect.

2. The water quality testing and sampling device with an isokinetic collection port as recited in claim 1, wherein: the water conservancy diversion subassembly is including locating collection bottle chamber (12) with rotate storage chamber (31) between chamber (40), storage chamber (31) with communicate between collection bottle chamber (12), it is equipped with swing pivot (32) to rotate between chamber (31) both sides wall, swing pivot (32) excircle facial features is gone up to be fixed and is equipped with outlet pipe (33), outlet pipe (36) have been seted up in outlet pipe (33), turning block (42) in-connection sampling port (48) are equipped with inhalant canal (43), inhalant canal (43) with the intercommunication is equipped with coupling hose (39) between outlet pipe (36), storage chamber (31) upper wall is fixed and is equipped with baffle (34), in baffle (34) with be close to in outlet pipe (33) upper end the fixed control electro-magnet (35) that can opposite sex mutually inhale that are fixed respectively in swing pivot (32) one side, outlet pipe (33) down the terminal surface with storage chamber (31) is kept away from fixedly connected with reset spring (38) between collection bottle chamber (12) a lateral wall.

3. A water quality testing and sampling device with an isokinetic collection port as defined in claim 2, wherein: inhalant canal (43) upper wall is kept away from collecting bottle chamber (12) one side intercommunication is equipped with closure plate chamber (44), slidable closure plate (45) that are equipped with in closure plate chamber (44), closure plate (45) can seal completely inhalant canal (43), closure plate (45) up end with fixedly connected with closure plate spring (46) between closure plate chamber (44) upper wall, closure plate (45) up end with fixedly connected with connection rope (37) between outlet pipe (33) lower terminal surface.