Water pollution monitoring device

Abstract

The invention provides a water pollution monitoring device which comprises a supporting plate and further comprises a water pollution monitoring analyzer fixedly connected to the side wall of the top of the supporting plate, and an analysis tank is fixedly arranged at the top of the water pollution monitoring analyzer. A rotating threaded cylinder is rotated to drive a floating plate to move, the distance between the floating plate and a water inlet groove is judged through length scale marks on a scale rack, the distance between the floating plate and the water inlet groove can be properly adjusted according to the requirement of sampling depth, a first rotating motor rotates to drive a sampling shell to stretch into water, and when the sampling depth is reached, the sampling shell is driven to move. The floating plate can drive the plugging cover to move upwards under the action of buoyancy of water, so that the water inlet groove is opened, sampling of water at a certain depth can be well completed, after sampling is completed, the sampling shell is covered with the plugging cover again, the water inlet groove is plugged, and it is convenient to well prevent the sampling shell from being polluted by water on the upper layer when the sampling shell ascends.

Description

Technical Field

[0001] The present application relates to the technical field of water pollution monitoring, and in particular to a water pollution monitoring device. Background Art

[0002] Water pollution monitoring refers to the qualitative, quantitative and systematic comprehensive analysis of pollutants in water bodies to explore and study the changing patterns of water environment quality. Specifically, water pollution monitoring includes monitoring and measuring the types, concentrations and changing trends of pollutants in water bodies to evaluate the status of water quality.

[0003] Among the existing Chinese patents, the publication number CN211825173U discloses a water pollution monitoring device, including a suspension device for suspending on the water surface, the suspension device is provided with a sampling device for obtaining a sample liquid and an analysis device for analyzing the sample liquid; the analysis device includes a sample liquid device for sampling, the sample liquid device is connected to a rope and a driving member for retracting the rope, the sampling device and the analysis device are both communicatively connected to a control terminal, and the control terminal is used to control the length of the rope retracted. The present application controls the operation of the driving member through the control terminal, and the rope is retracted and released under the drive of the driving member, and then when the rope is extended, the sample liquid device sinks to the corresponding depth of the water surface of the water pollution monitoring water area and collects the sample liquid, and after the sample liquid is collected, it is analyzed in real time through the analysis device, which has the effect of solving the problem that it is difficult to conduct complete and effective water pollution monitoring in automatic monitoring.

[0004] Referring to the above-mentioned water pollution monitoring device, when sampling, the monitoring device directly throws the sampler into the water for sampling. Since the top is open, water directly enters the sampler from the top to complete the sampling. However, this sampling method can only collect shallow water samples and cannot better control the sampling depth, resulting in insufficient representativeness of the collected water samples, affecting the accuracy of water pollution monitoring. Therefore, how to better complete the sampling of water at a certain depth is an important problem that needs to be solved in the design of water pollution monitoring devices. Summary of the invention

[0005] The present application provides a water pollution monitoring device in order to solve the problem that only shallow water samples can be collected and the sampling depth cannot be well controlled.

[0006] This application solves the above technical problems through the following technical solutions:

[0007] The present application provides a water pollution monitoring device, comprising a support plate, and further comprising: a water pollution monitoring analyzer is fixedly connected to the top side wall of the support plate, and an analysis tank is fixedly arranged on the top of the water pollution monitoring analyzer;

[0008] A lifting structure, wherein the lifting structure is arranged on a support plate;

[0009] A rotating structure, wherein the rotating structure is arranged on the lifting structure;

[0010] The water sampling structure is arranged on a rotating structure, and the rotating structure rotates to synchronously drive the water sampling structure to rotate.

[0011] Preferably, four universal wheels are fixedly connected to the bottom side wall of the support plate.

[0012] In this technical solution, the rolling of the universal wheel can drive the entire monitoring device to move.

[0013] Preferably, the lifting structure includes a support frame, a rotating motor, a lifting plate, a support block, a rotating connecting block and a threaded rod, the support frame is fixedly connected to the top side wall of the support plate, the top side wall of the support frame is rotatably connected with a rotating connecting block, the bottom of the rotating connecting block is fixedly connected to a threaded rod, the bottom of the threaded rod is rotatably connected to the side wall of the support plate, the lifting plate is threadedly connected to the threaded rod, the rotating motor is fixedly connected to the top outer side wall of the support frame, the rotating end of the rotating motor is fixedly connected to the rotating connecting block, two support blocks are fixedly connected to the side walls on both sides of the support frame, and the two support blocks are fixedly connected to the top side walls of the support plate.

[0014] In the technical solution, the rotating motor drives the rotating connecting block to rotate, the rotating connecting block drives the threaded rod to rotate, and the threaded rod drives the lifting plate to move when it rotates.

[0015] Preferably, the rotating structure includes a rotating ring plate, a rotating gear, a rotating tooth groove, a rotating rod, a second rotating motor and a rotating groove, a rotating groove and a rotating tooth groove are opened on the side wall of the rotating ring plate, the rotating ring plate is rotatably connected to the lifting plate, the rotating rod is rotatably connected to the side wall of the lifting plate, the top of the rotating rod is fixedly connected to the rotating gear, the second rotating motor is fixedly connected to the bottom of the lifting plate, and the rotating end of the second rotating motor is fixedly connected to the rotating rod.

[0016] In this technical solution, the second rotating motor drives the rotating gear to rotate, the rotating gear rotates in the rotating tooth groove and drives the rotating ring plate to rotate, and the rotating ring plate drives the sampling shell to rotate.

[0017] Preferably, the rotating gear and the rotating tooth groove are meshed with each other.

[0018] Preferably, the water sampling structure includes a second threaded rod, a sampling shell, a water inlet groove, a drain pipe and a round cover, the second threaded rod is fixedly connected to the bottom side wall of the rotating ring plate, the bottom of the second threaded rod is fixedly connected to the sampling shell, the side wall of the sampling shell is provided with a water inlet groove, the bottom side wall of the sampling shell is fixedly connected to the drain pipe, and the side wall of the drain pipe is threadedly connected with a round cover.

[0019] In this technical solution, water can enter the sampling shell through the water inlet groove, and after sampling is completed, the round cover is opened so that the water sample in the sampling shell can fall through the drain pipe.

[0020] Preferably, the water sampling structure includes a rotating threaded barrel, a movable plate, a floating plate, a threaded rod three, a spring, a sealing cover and a rotating connecting ring, the rotating threaded barrel is threadedly connected to the threaded rod two, the bottom of the rotating threaded barrel is fixedly connected to the rotating connecting ring, the rotating connecting ring is rotatably connected to the movable plate, the bottom of the movable plate is fixedly connected to the spring, the bottom of the spring is fixedly connected to the floating plate, the side walls of the floating plate and the movable plate are slidably connected with the threaded rod three, and the bottom of the threaded rod three is fixedly connected to the sealing cover.

[0021] In this technical solution, the rotating threaded cylinder rotates and moves on the threaded rod two, the rotating threaded cylinder drives the moving plate to move, the moving plate drives the floating plate to move through the spring, and the fixing bolt rotates on the threaded rod three as the floating plate moves, so that the floating plate can move along the scale frame.

[0022] Preferably, the movable plate and the floating plate are slidably connected to the threaded rod 2, and two fixing nuts are threadedly connected to the side wall of the threaded rod 3, and the two fixing nuts are located at the upper and lower sides of the floating plate.

[0023] In the technical solution, the fixing nuts on both sides are rotated so that the fixing nuts are tightly clamped on both sides of the floating plate, and the floating plate can be fixedly connected to the threaded rod.

[0024] Preferably, a sealing gasket is fixedly connected to the inner wall of the sealing cover, and the sealing cover and the sealing gasket cooperate with the sampling shell. The top of the threaded rod three is fixedly connected to a ruler frame, and length scale lines are engraved on the side wall of the ruler frame. The bottom of the ruler frame extends to a position flush with the height of the water inlet trough.

[0025] In the technical solution, the distance between the floating plate and the water inlet trough is judged by the length scale line on the scale frame, so that the distance between the floating plate and the water inlet trough is appropriately adjusted according to the sampling depth requirement.

[0026] Preferably, a fixed shell and a battery are fixedly connected to the top side wall of the support plate, the fixed shell covers the outside of the battery, and the battery is electrically connected to the rotating motor 1, the rotating motor 2 and the water pollution monitoring analyzer.

[0027] In this technical solution, the battery can supply power to the rotating motor 1, the rotating motor 2 and the water pollution monitoring and analyzing instrument.

[0028] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present application.

[0029] The positive effects of this application are:

[0030] 1. By rotating the rotating threaded barrel, the rotating threaded barrel rotates and moves on the threaded rod 2, and the rotating threaded barrel moves to drive the floating plate to move. The fixing bolt rotates on the threaded rod 3 as the floating plate moves, so that the floating plate can move along the scale frame. The distance between the floating plate and the water inlet trough is judged by the length scale line on the scale frame, so as to appropriately adjust the distance between the floating plate and the water inlet trough according to the sampling depth requirements.

[0031] 2. By rotating the motor 1 to drive the lifting plate to move, the lifting plate drives the sampling shell to move downward, so that the sampling shell extends into the water. When the sampling depth is reached, the bottom of the floating plate just touches the water surface. At this time, it continues to move downward for a short distance. The floating plate will move upward along the threaded rod 2 under the action of the buoyancy of the water, driving the sealing cover to move upward, so that the water inlet groove opens, and water enters the sampling shell through the water inlet groove to complete the sampling, which is convenient for better completion of the sampling of water at a certain depth.

[0032] 3. After the sampling of this application is completed, the rotating motor 1 is rotated in the reverse direction to drive the sampling shell to rise, and the float plate will rise and leave the water surface. Under the thrust of the spring and the gravity of the threaded rod and the scale frame, the sealing cover is re-covered on the sampling shell to seal the water inlet tank, so as to better prevent the sampling shell from being contaminated by the upper water when it rises. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this application.

[0034] Figure 2 This is a schematic diagram of the overall internal structure of this application.

[0035] Figure 3 This is a schematic diagram of the overall side view of the internal structure of this application.

[0036] Figure 4 For this application Figure 2 Schematic diagram of the local enlarged structure at A.

[0037] Figure 5 For this application Figure 3 Schematic diagram of the local enlarged structure at point B.

[0038] Description of Reference Numerals

[0039] 1. Support plate; 2. Universal wheel; 3. Fixed shell; 4. Water pollution monitoring analyzer; 5. Analysis tank; 6. Lifting structure; 601. Support frame; 602. Rotating motor 1; 603. Lifting plate; 604. Support block; 605. Rotating connecting block; 606. Threaded rod 1; 7. Rotating structure; 701. Rotating ring plate; 702. Rotating gear; 703. Rotating tooth groove; 704. Rotating rod; 705. Rotating motor 2 ; 706, rotating groove; 8, water sampling structure; 801, threaded rod two; 802, sampling shell; 803, water inlet groove; 804, drain pipe; 805, round cover; 811, rotating threaded cylinder; 812, moving plate; 813, floating plate; 814, threaded rod three; 815, spring; 816, sealing cover; 817, rotating connecting ring; 821, sealing gasket; 822, scale frame; 823, fixing nut; 9, battery. DETAILED DESCRIPTION

[0040] The present application is further described below by way of examples, but the present application is not limited to the scope of the examples.

[0041] like Figure 1-5 As shown, the water pollution monitoring device includes a support plate 1, and further includes: a water pollution monitoring analyzer 4 is fixedly connected to the top side wall of the support plate 1, and an analysis tank 5 is fixedly arranged on the top of the water pollution monitoring analyzer 4;

[0042] A lifting structure 6, wherein the lifting structure 6 is arranged on the support plate 1;

[0043] A rotating structure 7, wherein the rotating structure 7 is arranged on the lifting structure 6;

[0044] The water sampling structure 8 is arranged on the rotating structure 7, and the rotating structure 7 rotates to synchronously drive the water sampling structure 8 to rotate.

[0045] Four universal wheels 2 are fixedly connected to the bottom side wall of the support plate 1 .

[0046] The universal wheel 2 can move the entire monitoring device when it rolls.

[0047] The lifting structure 6 includes a support frame 601, a rotating motor 602, a lifting plate 603, a support block 604, a rotating connecting block 605 and a threaded rod 606. The support frame 601 is fixedly connected to the top side wall of the support plate 1, and a rotating connecting block 605 is rotatably connected to the top side wall of the support frame 601. The bottom of the rotating connecting block 605 is fixedly connected to the threaded rod 606, and the bottom of the threaded rod 606 is rotatably connected to the side wall of the support plate 1. The lifting plate 603 is threadedly connected to the threaded rod 606. The rotating motor 602 is fixedly connected to the top outer side wall of the support frame 601, and the rotating end of the rotating motor 602 is fixedly connected to the rotating connecting block 605. Two support blocks 604 are fixedly connected to the side walls on both sides of the support frame 601, and the two support blocks 604 are fixedly connected to the top side wall of the support plate 1.

[0048] The rotating motor 602 rotates to drive the rotating connecting block 605 to rotate, the rotating connecting block 605 drives the threaded rod 606 to rotate, and the threaded rod 606 rotates to drive the lifting plate 603 to move.

[0049] The rotating structure 7 includes a rotating ring plate 701, a rotating gear 702, a rotating tooth groove 703, a rotating rod 704, a rotating motor 705 and a rotating groove 706. The rotating groove 706 and the rotating tooth groove 703 are opened on the side wall of the rotating ring plate 701. The rotating ring plate 701 is rotatably connected to the lifting plate 603. The rotating rod 704 is rotatably connected to the side wall of the lifting plate 603. The top of the rotating rod 704 is fixedly connected to the rotating gear 702. The rotating motor 705 is fixedly connected to the bottom of the lifting plate 603. The rotating end of the rotating motor 705 is fixedly connected to the rotating rod 704.

[0050] The second rotating motor 705 rotates to drive the rotating gear 702 to rotate. The rotating gear 702 rotates in the rotating tooth groove 703 to drive the rotating ring plate 701 to rotate. The rotating ring plate 701 drives the sampling housing 802 to rotate.

[0051] The rotating gear 702 and the rotating tooth groove 703 are meshed with each other.

[0052] The water sampling structure 8 includes a second threaded rod 801, a sampling shell 802, a water inlet groove 803, a drain pipe 804 and a round cover 805. The second threaded rod 801 is fixedly connected to the bottom side wall of the rotating ring plate 701. The bottom of the second threaded rod 801 is fixedly connected to the sampling shell 802. The side wall of the sampling shell 802 is provided with a water inlet groove 803. The bottom side wall of the sampling shell 802 is fixedly connected to the drain pipe 804. The side wall of the drain pipe 804 is threadedly connected with a round cover 805.

[0053] Water can enter the sampling housing 802 through the water inlet groove 803 , and after sampling is completed, the round cover 805 is opened, so that the water sample in the sampling housing 802 can fall through the drain pipe 804 .

[0054] The water sampling structure 8 includes a rotating threaded barrel 811, a movable plate 812, a floating plate 813, a threaded rod three 814, a spring 815, a blocking cover 816 and a rotating connecting ring 817. The rotating threaded barrel 811 is threadedly connected to the threaded rod two 801, the bottom of the rotating threaded barrel 811 is fixedly connected to the rotating connecting ring 817, the rotating connecting ring 817 is rotatably connected to the movable plate 812, the bottom of the movable plate 812 is fixedly connected to the spring 815, the bottom of the spring 815 is fixedly connected to the floating plate 813, the side walls of the floating plate 813 and the movable plate 812 are slidably connected with the threaded rod three 814, and the bottom of the threaded rod three 814 is fixedly connected to the blocking cover 816.

[0055] The rotating threaded cylinder 811 rotates and moves on the threaded rod 2 801 , and the rotating threaded cylinder 811 drives the moving plate 812 to move. The moving plate 812 drives the floating plate 813 to move through the spring 815 , and the fixing bolt rotates on the threaded rod 3 814 as the floating plate 813 moves, so that the floating plate 813 can move along the scale frame 822 .

[0056] The movable plate 812 and the floating plate 813 are slidably connected to the threaded rod 2 801 , and two fixing nuts 823 are threadedly connected to the side wall of the threaded rod 3 814 . The two fixing nuts 823 are located at the upper and lower sides of the floating plate 813 .

[0057] The fixing nuts 823 on both sides are rotated so that the fixing nuts 823 are tightly clamped on both sides of the floating plate 813, and the floating plate 813 can be fixedly connected to the threaded rod.

[0058] A sealing gasket 821 is fixedly connected to the inner wall of the blocking cover 816, and the blocking cover 816 and the sealing gasket 821 cooperate with the sampling shell 802. The top of the threaded rod three 814 is fixedly connected to the scale frame 822, and the side wall of the scale frame 822 is engraved with length scale lines. The bottom of the scale frame 822 extends to a height flush with the water inlet trough 803.

[0059] The distance between the floating plate 813 and the water inlet trough 803 is determined by the length scale lines on the scale frame 822, so that the distance between the floating plate 813 and the water inlet trough 803 is appropriately adjusted according to the sampling depth requirements.

[0060] A fixed shell 3 and a battery 9 are fixedly connected to the top side wall of the support plate 1 , and the fixed shell 3 covers the outside of the battery 9 . The battery 9 is electrically connected to the rotating motor 1 602 , the rotating motor 2 705 and the water pollution monitoring analyzer 4 .

[0061] The storage battery 9 can supply power to the rotating motor 1 602 , the rotating motor 2 705 and the water pollution monitoring and analyzing instrument 4 .

[0062] When the present application is in use, the electrical components appearing in the present application are all connected to an external power supply and a control switch. The entire monitoring device is moved to the shore. When sampling is performed, the rotating threaded barrel 811 and the fixing nut 823 are rotated. The rotating threaded barrel 811 rotates and moves on the threaded rod 2 801. The rotating threaded barrel 811 moves to drive the moving plate 812 to move. The moving plate 812 drives the floating plate 813 to move through the spring 815. The fixing bolt rotates on the threaded rod 3 814 as the floating plate 813 moves, so that the floating plate 813 can move along the scale frame 822. The distance between the floating plate 813 and the water inlet trough 803 is judged by the length scale line on the scale frame 822, so that the distance between the floating plate 813 and the water inlet trough 803 is appropriately adjusted according to the sampling depth requirements.

[0063] After the height of the floating plate 813 is adjusted, the fixing nuts 823 on both sides are rotated so that the fixing nuts 823 are tightly clamped on both sides of the floating plate 813, and the floating plate 813 is fixedly connected to the threaded rod. The rotating motor 602 rotates to drive the rotating connecting block 605 to rotate, and the rotating connecting block 605 drives the threaded rod 1 606 to rotate. The threaded rod 1 606 rotates to drive the lifting plate 603 to move. The lifting plate 603 drives the rotating ring plate 701 to move downward, and the rotating ring plate 701 drives the threaded rod 2 801 to move downward. The threaded rod 2 801 drives the sampling housing 802 to move downward, so that the sampling housing 802 extends into the water.

[0064] When the required sampling depth is reached, the bottom of the floating plate 813 just touches the water surface. At this time, the floating plate 813 continues to move downward for a certain distance. Under the action of the buoyancy of the water, the floating plate 813 moves upward along the threaded rod 2 801. The spring 815 is compressed, and the floating plate 813 drives the threaded rod 3 814 to move upward. The threaded rod 3 814 drives the blocking cover 816 to move upward, so that the water inlet groove 803 is opened, and water enters the sampling housing 802 through the water inlet groove 803. Sampling is completed, which is convenient for better sampling of water at a certain depth.

[0065] After the sampling is completed, the rotating motor 602 is rotated in the opposite direction to drive the sampling shell 802 to rise, and the floating plate 813 will rise and leave the water surface. Under the thrust of the spring 815 and the gravity of the threaded rod and the scale frame 822, the blocking cover 816 is re-covered on the sampling shell 802 to block the water inlet 803, which can better prevent the sampling shell 802 from being polluted by the upper water when it rises. After the sampling shell 802 leaves the water surface, the rotating motor 2 705 rotates to drive the rotating gear 702 to rotate, and the rotating gear 702 rotates in the rotating tooth groove 703 to drive the rotating ring plate 701 to rotate. The rotating ring plate 701 drives the sampling shell 802 to rotate, so that the sampling shell 802 moves to the top of the analysis tank 5, and the round cover 805 is opened, so that the water sample in the sampling shell 802 falls into the analysis tank 5 below through the drain pipe 804, and the water pollution monitoring analyzer 4 analyzes and detects the water sample.

[0066] The present application is not limited to the above-mentioned embodiments, and any changes in shape or structure are within the protection scope of the present application. The protection scope of the present application is defined by the attached claims, and those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present application, but these changes and modifications are within the protection scope of the present application.

Claims

1. A water pollution monitoring device, comprising a support plate (1), characterized in that: Also includes: A water pollution monitoring and analyzing instrument (4) is fixedly connected to the top side wall of the support plate (1), and an analysis tank (5) is fixedly arranged on the top of the water pollution monitoring and analyzing instrument (4); A lifting structure (6), wherein the lifting structure (6) is arranged on the support plate (1); A rotating structure (7), wherein the rotating structure (7) is arranged on the lifting structure (6); A water sampling structure (8), wherein the water sampling structure (8) is arranged on a rotating structure (7), and the rotating structure (7) rotates synchronously to drive the water sampling structure (8) to rotate.

2. The water pollution monitoring device according to claim 1, characterized in that: Four universal wheels (2) are fixedly connected to the bottom side wall of the support plate (1).

3. The water pollution monitoring device according to claim 1, characterized in that: The lifting structure (6) comprises a support frame (601), a rotating motor (602), a lifting plate (603), a support block (604), a rotating connection block (605) and a threaded rod (606), wherein the support frame (601) is fixedly connected to the top side wall of the support plate (1), the top side wall of the support frame (601) is rotatably connected to the rotating connection block (605), the bottom of the rotating connection block (605) is fixedly connected to the threaded rod (606), and the threaded rod (606) The bottom is rotatably connected to the side wall of the support plate (1), the threaded rod (606) is threadedly connected to a lifting plate (603), the rotating motor (602) is fixedly connected to the top outer wall of the support frame (601), the rotating end of the rotating motor (602) is fixedly connected to a rotating connecting block (605), and two supporting blocks (604) are fixedly connected to the side walls on both sides of the support frame (601), and the two supporting blocks (604) are fixedly connected to the top side walls of the support plate (1).

4. The water pollution monitoring device according to claim 1, characterized in that: The rotating structure (7) comprises a rotating ring plate (701), a rotating gear (702), a rotating tooth groove (703), a rotating rod (704), a second rotating motor (705) and a rotating groove (706); a rotating groove (706) and a rotating tooth groove (703) are provided on a side wall of the rotating ring plate (701); the rotating ring plate (701) is rotatably connected to the lifting plate (603); the rotating rod (704) is rotatably connected to the side wall of the lifting plate (603); the top of the rotating rod (704) is fixedly connected to the rotating gear (702); the second rotating motor (705) is fixedly connected to the bottom of the lifting plate (603); and the rotating end of the second rotating motor (705) is fixedly connected to the rotating rod (704).

5. The water pollution monitoring device according to claim 4, characterized in that: The rotating gear (702) and the rotating tooth groove (703) are meshed with each other.

6. The water pollution monitoring device according to claim 1, characterized in that: The water sampling structure (8) comprises a second threaded rod (801), a sampling shell (802), a water inlet groove (803), a drainage pipe (804) and a round cover (805); the second threaded rod (801) is fixedly connected to the bottom side wall of the rotating ring plate (701); the bottom of the second threaded rod (801) is fixedly connected to the sampling shell (802); the side wall of the sampling shell (802) is provided with a water inlet groove (803); the bottom side wall of the sampling shell (802) is fixedly connected to the drainage pipe (804); and the side wall of the drainage pipe (804) is threadedly connected with a round cover (805).

7. The water pollution monitoring device according to claim 6, characterized in that: The water sampling structure (8) comprises a rotating threaded barrel (811), a movable plate (812), a floating plate (813), a threaded rod three (814), a spring (815), a blocking cover (816) and a rotating connecting ring (817); the rotating threaded barrel (811) is threadedly connected to the threaded rod two (801); the bottom of the rotating threaded barrel (811) is fixedly connected to the rotating connecting ring (817); the rotating connecting ring (817) is rotatably connected to the movable plate (812); the bottom of the movable plate (812) is fixedly connected to the spring (815); the bottom of the spring (815) is fixedly connected to the floating plate (813); the side walls of the floating plate (813) and the movable plate (812) are slidably connected to the threaded rod three (814); the bottom of the threaded rod three (814) is fixedly connected to the blocking cover (816).

8. The water pollution monitoring device according to claim 7, characterized in that: The movable plate (812) and the floating plate (813) are slidably connected to the second threaded rod (801), and two fixing nuts (823) are threadedly connected to the side wall of the third threaded rod (814), and the two fixing nuts (823) are located on the upper and lower sides of the floating plate (813).

9. The water pollution monitoring device according to claim 7, characterized in that: A sealing gasket (821) is fixedly connected to the inner wall of the blocking cover (816), and the blocking cover (816) and the sealing gasket (821) cooperate with the sampling shell (802). The top of the threaded rod three (814) is fixedly connected to the scale frame (822), and the side wall of the scale frame (822) is engraved with length scale lines. The bottom of the scale frame (822) extends to a height that is flush with the water inlet trough (803).

10. The water pollution monitoring device according to claim 1, characterized in that: A fixed shell (3) and a storage battery (9) are fixedly connected to the top side wall of the support plate (1); the fixed shell (3) covers the outside of the storage battery (9); and the storage battery (9) is electrically connected to a rotating motor 1 (602), a rotating motor 2 (705) and a water pollution monitoring analyzer (4).

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