Water pollutant monitoring device

Abstract

The invention discloses a water quality pollutant monitoring device, and relates to the technical field of environment monitoring, the water quality pollutant monitoring device comprises a floating platform, a monitoring probe, a floating ball and four support arms, the monitoring probe is fixedly connected with the lower surface of the floating platform, and the four support arms are fixedly connected with the lower surface of the floating platform; the floating ball is fixedly connected with the end, away from the floating platform, of the supporting arm, the position maintaining mechanism is arranged inside and outside the floating platform, the position maintaining mechanism comprises a supporting frame fixedly connected with the bottom end in the floating platform, a second rotating shaft is rotationally connected into the supporting frame, and a traction rope is fixedly connected to the surface of the second rotating shaft; the lower ends of the two traction ropes are jointly and fixedly connected with a sinking block, the front end of the second rotating shaft is fixedly connected with a rotating disc, and the extension length of the traction ropes can be timely and automatically adjusted according to the actual situation of water level rising, so that the problem that the monitoring device body is completely or partially immersed is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of environmental monitoring, more particularly to a water quality pollutant monitoring device. BACKGROUND

[0002] The water quality pollutant monitoring device is a device for monitoring and measuring the types, concentrations and trends of pollutants in water bodies, providing scientific basis for environmental protection, water resource management and pollution prevention, monitoring and measuring the types, concentrations and trends of pollutants in water bodies, and evaluating water quality.

[0003] The main body of the water quality pollutant monitoring device floats on the water surface, and the monitoring probe is deployed below the water body. In order to ensure that the monitoring device does not drift to the non-target area due to the action of water flow, thereby affecting the accurate monitoring of water quality pollutants, a heavy object is usually connected to the monitoring device, and the heavy object is sunk to the bottom of the water to realize the positioning and fixation of the monitoring device.

[0004] However, in the natural environment, the height of the water surface presents dynamic changes and is difficult to maintain constant, especially in the rainy season, the water surface height changes significantly, and the length of the traction rope between the monitoring device and the heavy object is limited. When the water surface abnormally rises, there is a risk that the main body of the monitoring device is completely or partially submerged, or the monitoring probe is too deep into the water body, thereby interfering with the accurate collection of data. SUMMARY

[0005] In view of the problems in the prior art, the purpose of the present application is to provide a water quality pollutant monitoring device which can timely and automatically adjust the extension length of the traction rope according to the actual situation of the rising water level, so as to solve the problem of complete or partial submersion of the monitoring device main body.

[0006] In order to solve the above problems, the present application adopts the following technical solutions.

[0007] The utility model provides a water quality pollutant monitoring device, including floating platform, monitoring probe, float ball and branch, monitoring probe is fixedly connected with the lower surface of floating platform, the number of branch is four, four branch all are fixedly connected with the lower surface of floating platform, float ball is fixedly connected with the one end of branch away from floating platform, position maintaining mechanism, position maintaining mechanism sets up in the inside and outside of floating platform, position maintaining mechanism includes the support frame fixedly connected with the inside bottom of floating platform, the inside rotatory connection of support frame has second rotation axis, the surface fixedly connected with traction rope of second rotation axis, the lower end of two traction ropes is fixedly connected with sinking block in common, the front end fixedly connected with the turntable of second rotation axis, the outside fixedly connected with the lug of turntable, the front surface of turntable is provided with vortex spring, the left and right sides of inside of floating platform all are rotatory connected with first rotation axis, the surface fixedly connected with the lever of first rotation axis, the one end fixedly connected with the card needle of lever near the inside of floating platform, the lower end of lever is provided with the float plate.

[0008] Further, the number of support frames is two, the inner ring of the vortex spring is fixedly connected with the second rotation axis, and the outer ring of the vortex spring is fixedly connected with the lug.

[0009] Further, the one end of each of the two support frames away from each other is rotatory connected with a second steering shaft, the lower surface of the floating platform is fixedly connected with a drooping frame, and the two bending portions of the drooping frame are rotatory connected with first steering shafts.

[0010] Further, the upper surface of the float plate is fixedly connected with a connecting seat, the inside of the connecting seat is provided with a ball, the upper surface of the ball is fixedly connected with a connecting column, the connecting column is fixedly connected with the lower end of the lever, and the ball and the connecting seat form a ball socket assembly.

[0011] Further, the inside bottom of the floating platform is fixedly connected with a backing plate matched with the card needle.

[0012] Further, a shading mechanism is arranged on the lower surface of the floating platform, the shading mechanism includes a mesh frame arranged on the lower surface of the floating platform, the lower surface of the floating platform is fixedly connected with a hanging plate, the top end of the mesh frame is fixedly connected with an external gear ring, the upper surface of the external gear ring is provided with a sliding groove, and the hanging plate is slidingly connected with the inside of the sliding groove.

[0013] Further, the lower surface of the floating platform is fixedly connected with a suspension plate, the cross-sectional shape of the suspension plate is "T" shape, the left short arm end of the suspension plate is rotatory connected with a movable connecting arm, the left end of the movable connecting arm is rotatory connected with a driven transmission shaft, the right short arm end of the suspension plate is fixedly connected with a fixed connecting arm, the right end of the fixed connecting arm is rotatory connected with a driving transmission shaft, and the surfaces of the driving transmission shaft and the driven transmission shaft are drivingly connected with a sanding belt.

[0014] Further, the top end of the main drive shaft is fixedly connected with a third rotating shaft, the inner bottom end of the floating platform is fixedly connected with a motor, the output shaft of the motor penetrates the floating platform and is fixedly connected with the top end of the third rotating shaft, the upper end of the third rotating shaft is fixedly connected with a gear, and the gear is engaged with an outer gear ring.

[0015] Further, the surface of the left short arm end of the suspension plate is fixedly connected with a support, and the first spring is fixedly connected between the support and the movable connecting arm.

[0016] Further, the lower end of the suspension plate is fixedly connected with a guide frame, the surface of the guide frame is slidably sleeved with a moving plate, the inner rotating shaft of the moving plate is rotatably connected with a supporting shaft, the front end of the moving plate is fixedly connected with a second spring, and the end, away from the moving plate, of the second spring is fixedly connected with the front end of the guide frame.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] (1) When the water level rises beyond the preset length of the traction rope, the clamping needle will be separated from the traction rope, thereby releasing the fixed constraint on the traction rope. At this time, the floating platform rises to the water surface and maintains a floating state by virtue of the strong buoyancy of the floating ball. The extension length of the traction rope can be adjusted in a timely and automatic manner according to the actual situation of the rising water level, the risk of the monitoring device body being completely or partially submerged is effectively avoided, the monitoring probe is prevented from being excessively deep into the water body, the monitoring probe is ensured to be maintained at a stable depth, and the accuracy and reliability of data acquisition of the monitoring device are improved.

[0019] (2) When the monitoring probe is taken out of the water, the floating plate will move downward under the action of gravity, and the clamping needle will be separated from the traction rope, thereby releasing the fixed state of the traction rope. Then the volute spring can drive the second rotating shaft to wind the traction rope. The exposed length of the traction rope during migration of the monitoring device can be reduced, the winding phenomenon of the traction rope due to excessive exposure can be effectively prevented, and adverse effects on the next operation can be avoided.

[0020] (3) The ball socket assembly composed of the connecting seat and the ball can rotate freely at multiple angles, which ensures that the floating plate can maintain a floating posture parallel to the water surface during the process of the floating plate accompanying the water level rising, and can realize stable buoyancy regulation, effectively preventing the change of the contact position between the floating plate and the water surface caused by the displacement of the floating plate during the rotation operation of the pry arm, and further causing the inclination of the floating plate. The inclination of the floating plate will affect the buoyancy distribution of the floating plate and have an adverse effect on the sensitivity of the traction rope. Therefore, the posture of the floating plate can be adjusted to maintain its horizontal stability on the water surface, thereby ensuring the consistency and reliability of the buoyancy supply, maintaining the sensitivity of the traction rope, and further improving the accuracy and reliability of data acquisition of the monitoring device.

[0021] (4) When the underwater monitoring probe is used to monitor water pollutants, the net frame can prevent waterweeds from winding the monitoring probe, thereby avoiding the situation that the monitoring probe is damaged due to being pulled by the waterweeds. Through the grinding action of the grinding surface of the grinding belt, the waterweeds winding on the net frame can be ground and crushed, thereby avoiding the pollution of the water quality around the monitoring probe caused by the long-term winding and death and decay of the waterweeds, and affecting the monitoring of the monitoring probe. The potential influence of the waterweeds on the operation of the monitoring probe is reduced, the stability of the monitoring equipment and the accuracy of data acquisition are improved, and the reliability of the water quality monitoring data is ensured.

[0022] (5) The gear and the outer gear ring can drive the net frame to rotate, the waterweeds on the surface of the net frame can be ground and cleaned in all directions through the rotation of the net frame, and the rotation direction of the net frame and the grinding belt is opposite, which can further improve the grinding effect of the waterweeds, so as to further improve the accuracy of data acquisition of the monitoring device. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the present application;

[0024] Figure 2 is a structural schematic view of the inside of the floating platform of the present application;

[0025] Figure 3 is a structural schematic view of the second rotating shaft part of the present application;

[0026] Figure 4 is a structural schematic view of the pry arm part of the present application;

[0027] Figure 5 is a structural schematic view of the net frame of the present application;

[0028] Figure 6 is a structural schematic view of the outer gear ring of the present application;

[0029] Figure 7 is a structural schematic view of the fixed connecting arm and the movable connecting arm of the present application;

[0030] Figure 8 For the invention Figure 7 Enlarged view of A in the invention.

[0031] Explanation of figure:

[0032] 1, floating platform; 2, monitoring probe; 3, floating ball; 4, support arm; 501, sinking block; 502, drooping frame; 503, traction rope; 504, first steering shaft; 505, prying arm; 506, floating plate; 507, clamping pin; 508, first rotating shaft; 509, connecting column; 510, ball; 511, connecting seat; 512, support frame; 513, pad plate; 514, second steering shaft; 515, rotating disc; 516, second rotating shaft; 517, volute spring; 518, protruding block; 601, net frame; 602, abrasive belt; 603, motor; 604, fixed connecting arm; 605, gear; 606, outer gear ring; 607, suspension plate; 608, driving transmission shaft; 609, support shaft; 610, driven transmission shaft; 611, moving connecting arm; 612, first spring; 613, support; 614, guide frame; 615, second spring; 616, moving plate; 617, sliding groove; 618, hanging plate; 619, third rotating shaft. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0034] Please refer to Figures 1-4The utility model provides a water quality pollutant monitoring device, floating platform 1, monitoring probe 2, float ball 3 and support arm 4, monitoring probe 2 is fixedly connected with the lower surface of floating platform 1, the number of support arm 4 is four, four support arm 4 all are fixedly connected with the lower surface of floating platform 1, float ball 3 is fixedly connected with the end of support arm 4 away from floating platform 1, hollow float ball 3 provides buoyancy, makes floating platform 1 can float on the water surface, position maintaining mechanism, the position maintaining mechanism is arranged in the inside and outside of floating platform 1, the position maintaining mechanism includes the support frame 512 fixedly connected with the inside bottom end of floating platform 1, the inside rotationally connected with support frame 512 of second shaft 516, through the take -up operation of second shaft 516 to traction rope 503, can adjust the height of floating platform 1 and float in water, the surface fixedly connected with traction rope 503 of second shaft 516, the floating range of monitoring device can be controlled through traction rope 503, the lower end of two traction ropes 503 is fixedly connected with sinker 501 in place, through the sinker 501 of big weight can realize the traction of floating platform 1, keeps the position of floating platform 1.

[0035] Wherein, the front end fixedly connected with the second shaft 516 has the turntable 515, the outside fixedly connected with the lug 518 of turntable 515, the front surface of turntable 515 is provided with the scroll spring 517, can be driven by the rebound of scroll spring 517 to the traction rope 503 of second shaft 516 and be wound, the inside left and right sides of floating platform 1 are rotatably connected with first shaft 508, the surface fixedly connected with the pry arm 505 of first shaft 508, the pry arm 505 is fixedly connected with the card needle 507 near the inside end of floating platform 1, and the card needle 507 is stuck in traction rope 503, and traction rope 503 can be fixed, and the lower end of pry arm 505 is provided with the float plate 506, and the float plate 506 floats on the water surface, and the pry arm 505 can be controlled according to the water level and be tilted.

[0036] The support frame 512 is two in number, the inner ring of the volute spring 517 is fixedly connected with the second rotating shaft 516, the outer ring of the volute spring 517 is fixedly connected with the protrusion 518, the ends of the two support frames 512 away from each other are rotatably connected with the second steering shaft 514, the lower surface of the floating platform 1 is fixedly connected with the drooping frame 502, the two bending portions of the drooping frame 502 are rotatably connected with the first steering shaft 504, the upper surface of the floating plate 506 is fixedly connected with the connecting seat 511, the inside of the connecting seat 511 is provided with the ball 510, the upper surface of the ball 510 is fixedly connected with the connecting column 509, the connecting column 509 is fixedly connected with the lower end of the prying arm 505, the ball 510 and the connecting seat 511 form a ball socket assembly, the ball socket assembly formed by the connecting seat 511 and the ball 510 has a multi-angle free rotation capability, so that the floating plate 506 can continuously maintain a floating posture parallel to the water surface, and stable buoyancy regulation can be achieved, the inside bottom end of the floating platform 1 is fixedly connected with the pad 513 matched with the clamping needle 507, the pad 513 can provide support when the clamping needle 507 is inserted into the traction rope 503, so that better stability can be achieved.

[0037] By using the above technical scheme, when the water quality pollutants are monitored by using the monitoring device, the floating platform 1 is arranged on the water surface, the hollow floating ball 3 provides the buoyancy, the floating platform 1 can float on the water surface, and the monitoring probe 2 is underwater, so that the monitoring probe 2 can be used to monitor the water quality pollutants. When the water surface is too high and exceeds the length of the traction rope 503, the depth at which the water surface submerges the floating platform 1 also increases, and when the water surface rises, the height of the floating platform 1 does not change, the floating plate 506 floats on the water surface, so that the prying arm 505 is tilted up at the left end and the right end of the prying arm 505 is lowered as the water surface rises. Since the traction rope 503 is located between the pad 513 and the clamping needle 507, when the right end of the prying arm 505 is lowered, the clamping needle 507 is lowered in an arc-shaped movement track, so that the clamping needle 507 is separated from the surface of the traction rope 503 and the traction rope 503 is fixed. At this time, the floating platform 1 is lifted by the buoyancy generated by the floating ball 3 and floats on the water surface. In this process, the floating plate 506 is lowered with the water surface, the right end of the prying arm 505 is tilted up, until the clamping needle 507 contacts the traction rope 503 and is inserted into the traction rope 503, so that the traction rope 503 can be fixed, so that the monitoring probe 2 is at a stable depth and the data acquisition accuracy of the monitoring device is improved.

[0038] When the monitoring probe 2 is taken out of the water, the floating plate 506 is no longer floating on the water surface, at this time the floating plate 506 is moved downward by the influence of gravity, and the right end of the pry arm 505 is moved upward, so that the clamping needle 507 is disengaged from the traction rope 503, and the fixation of the traction rope 503 is released, that is, the second rotating shaft 516 is driven to rotate by the rebound of the vortex spring 517, so as to wind the traction rope 503, avoid the traction rope 503 being too long and causing the traction rope 503 to be wound, and affect the next use.

[0039] When the floating plate 506 rises with the water surface, the contact position of the floating plate 506 with the water surface changes due to the displacement of the floating plate 506, and the floating plate 506 is inclined. The inclination of the floating plate 506 affects the buoyancy distribution of the floating plate 506 and adversely affects the sensitivity of the traction rope 503. Therefore, the ball and socket assembly composed of the connecting seat 511 and the ball 510 is used, and the two together constitute a relative rotating connecting structure, realizing the multi-angle free rotation of the floating plate 506. This is a common means in the prior art, and will not be described in detail here. The floating plate 506 can continuously maintain a floating posture parallel to the water surface, realize stable buoyancy control, and further improve the accuracy and reliability of data acquisition of the monitoring device.

[0040] As shown in Figures 5-8 The shade mechanism is provided on the lower surface of the floating platform 1, and the shade mechanism includes a mesh frame 601 provided on the lower surface of the floating platform 1. The mesh frame 601 can prevent water plants from winding around the monitoring probe 2. The lower surface of the floating platform 1 is fixedly connected with a hanging plate 618. The top end of the mesh frame 601 is fixedly connected with an outer gear ring 606. The upper surface of the outer gear ring 606 is provided with a sliding groove 617. The hanging plate 618 is slidably connected with the inside of the sliding groove 617. The lower surface of the floating platform 1 is fixedly connected with a suspension plate 607. The cross-sectional shape of the suspension plate 607 is “T” shape. The left short arm end of the suspension plate 607 is rotatably connected with a movable connecting arm 611. The left end of the movable connecting arm 611 is rotatably connected with a driven transmission shaft 610. The right short arm end of the suspension plate 607 is fixedly connected with a fixed connecting arm 604. The right end of the fixed connecting arm 604 is rotatably connected with a driving transmission shaft 608. The surfaces of the driving transmission shaft 608 and the driven transmission shaft 610 are drivingly connected with a sanding belt 602. The rotating sanding belt 602 can grind the water plants wound on the mesh frame 601, so as to realize the cleaning of the water plants.

[0041] The top end of the driving shaft 608 is fixedly connected with a third rotating shaft 619, the inner bottom end of the floating platform 1 is fixedly connected with a motor 603, the motor 603 can provide power, the output shaft of the motor 603 penetrates the floating platform 1 and is fixedly connected with the top end of the third rotating shaft 619, the upper end of the third rotating shaft 619 is fixedly connected with a gear 605, the gear 605 is engaged with an outer gear ring 606, and the net frame 601 can be driven to rotate, and the rotating direction of the net frame 601 is opposite to that of the sanding belt 602, so that the sanding effect on the waterweeds is further improved.

[0042] The surface of the short arm end of the left side of the suspension plate 607 is fixedly connected with a support 613, the first spring 612 is fixedly connected between the support 613 and the movable connecting arm 611, the movable connecting arm 611 can be driven to rotate by the first spring 612, the sanding belt 602 covers the surface of the net frame 601, a larger contact area is provided, and a better sanding effect is achieved, the front surface of the lower end of the suspension plate 607 is fixedly connected with a guide frame 614, the surface of the guide frame 614 is slidably sleeved with a moving plate 616, the inner portion of the moving plate 616 is rotatably connected with a supporting shaft 609, the front end of the moving plate 616 is fixedly connected with a second spring 615, the sanding belt 602 can be pushed by the second spring 615, the sanding belt 602 is stretched, the sanding belt 602 always maintains a transmission state, the sanding belt 602 is prevented from being loosened due to rotation, and one end, away from the moving plate 616, of the second spring 615 is fixedly connected with the front end of the guide frame 614.

[0043] When the water quality pollutants are monitored by using the monitoring probe 2 under the water surface, the waterweeds can be prevented from being wound on the monitoring probe 2 by the net frame 601, and the monitoring probe 2 is prevented from being damaged due to the pulling of the waterweeds. When the net frame 601 is wound by the waterweeds, the driving shaft 608 is driven to rotate by the motor 603, and the transmission of power is realized by the sanding belt 602 to drive the driven shaft 610 to rotate, so that the sanding belt 602 is laid on the surface of the net frame 601 and rotates, the rotating sanding belt 602 can grind the waterweeds wound on the net frame 601, the waterweeds are cleaned, the influence of the waterweeds on the monitoring probe 2 is reduced, and the data acquisition accuracy of the monitoring device is further improved.

[0044] The third rotating shaft 619 is driven to rotate in the rotating process, the gear 605 is further driven to rotate, the outer gear ring 606 is driven to rotate, and the net frame 601 is driven to rotate, the waterweeds on the surface of the net frame 601 can be comprehensively ground and cleaned by the rotation of the net frame 601, the rotating direction of the net frame 601 is opposite to that of the sanding belt 602, the sanding effect on the waterweeds is further improved, and the data acquisition accuracy of the monitoring device is further improved.

[0045] Method for use: when the water quality pollutants are monitored by the monitoring device, the floating platform 1 is arranged on the water surface, the hollow floating ball 3 provides the buoyancy, the floating platform 1 floats on the water surface, and the monitoring probe 2 is underwater.

[0046] When the water surface height exceeds the length of the traction rope 503, the depth of the water surface submerging the floating platform 1 also increases, the floating plate 506 floats on the water surface, the pry arm 505 is tilted at the left end with the increase of the water surface, the right end of the pry arm 505 is lowered, the clamping needle 507 is lowered along the arc-shaped moving track, the clamping needle 507 is separated from the surface of the traction rope 503, the floating platform 1 is lifted by the buoyancy generated by the floating ball 3 and floats on the water surface, in this process, the floating plate 506 is lowered with the water surface, the clamping needle 507 is stuck in the traction rope 503, the traction rope 503 is fixed, and the monitoring probe 2 is at a stable depth.

[0047] The aquatic plants are prevented from being wound on the monitoring probe 2 by the net frame 601. When the net frame 601 is wound by the aquatic plants, the abrasive belt 602 is driven to rotate by the motor 603, and the abrasive belt 602 grinds the aquatic plants wound on the net frame 601.

[0048] The third rotating shaft 619 synchronously drives the gear 605 to rotate, drives the outer gear ring 606 to rotate, and drives the net frame 601 to rotate, so that the aquatic plants on the surface of the net frame 601 are grinded and cleaned in all directions.

[0049] The monitoring probe 2 is taken out of the water, the floating plate 506 is moved downward by the gravity, the right end of the pry arm 505 is moved upward, the clamping needle 507 is separated from the traction rope 503, the fixation of the traction rope 503 is released, the second rotating shaft 516 is driven to rotate by the rebound of the volute spring 517, and the traction rope 503 is wound.

[0050] The above is only the preferred specific embodiment of the present application; however, the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme of the present application and the improvement concept thereof within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A water quality pollutant monitoring device, comprising a floating platform (1), a monitoring probe (2), a floating ball (3) and a support arm (4), the monitoring probe (2) is fixedly connected with the lower surface of the floating platform (1), the number of the support arm (4) is four, the four support arms (4) are all fixedly connected with the lower surface of the floating platform (1), and the floating ball (3) is fixedly connected with the end of the support arm (4) away from the floating platform (1), characterized in that: Position maintaining mechanism, position maintaining mechanism is set up inside and outside of floating platform (1), position maintaining mechanism includes support frame (512) that fixed connection is connected with inside bottom of floating platform (1), the inside rotation of support frame (512) is connected with second rotation axis (516), the surface of second rotation axis (516) is fixedly connected with traction rope (503), the lower end of two traction ropes (503) is fixedly connected with sinking block (501), the front end of second rotation axis (516) is fixedly connected with turntable (515), the outside of turntable (515) is fixedly connected with lug (518), the front surface of turntable (515) is provided with spiral spring (517), the left and right sides of inside of floating platform (1) are rotatably connected with first rotation axis (508), the surface of first rotation axis (508) is fixedly connected with pry arm (505), the end close to inside of floating platform (1) of pry arm (505) is fixedly connected with card needle (507), the lower end of pry arm (505) is provided with floating plate (506). ​ 2. The water quality pollutant monitoring device of claim 1, wherein: The number of support frames (512) is two, the inner ring of spiral spring (517) is fixedly connected with second rotation axis (516), and the outer ring of spiral spring (517) is fixedly connected with lug (518).

3. The water quality pollutant monitoring device of claim 1, wherein: Two support frames (512) are rotatably connected with second steering shaft (514) away from each other, and the lower surface of floating platform (1) is fixedly connected with downstand (502), two bending portions of downstand (502) are rotatably connected with first steering shaft (504).

4. The water quality contaminant monitoring device of claim 1, wherein: The upper surface of floating plate (506) is fixedly connected with connecting seat (511), the inside of connecting seat (511) is provided with sphere (510), the upper surface of sphere (510) is fixedly connected with connecting column (509), the lower end of pry arm (505) is fixedly connected with connecting column (509), and sphere (510) and connecting seat (511) form a ball joint assembly.

5. The water quality contaminant monitoring device of claim 4, wherein: The inside bottom of floating platform (1) is fixedly connected with gasket (513) matched with card needle (507).

6. The water quality contaminant monitoring device of claim 1, wherein: The shade mechanism is arranged on the lower surface of the floating platform (1), the shade mechanism comprises a net frame (601) arranged on the lower surface of the floating platform (1), the lower surface of the floating platform (1) is fixedly connected with a hanging plate (618), the top end of the net frame (601) is fixedly connected with an outer gear ring (606), the upper surface of the outer gear ring (606) is provided with a sliding groove (617), and the hanging plate (618) is slidably connected with the inside of the sliding groove (617).

7. The water quality contaminant monitoring device of claim 6, wherein: The lower surface of the floating platform (1) is fixedly connected with a suspension plate (607), the cross-sectional shape of the suspension plate (607) is "T" shape, the left side short arm end of the suspension plate (607) is rotatably connected with a movable connecting arm (611), the left end of the movable connecting arm (611) is rotatably connected with a driven transmission shaft (610), the right side short arm end of the suspension plate (607) is fixedly connected with a fixed connecting arm (604), the right end of the fixed connecting arm (604) is rotatably connected with a driving transmission shaft (608), and the surface of the driving transmission shaft (608) and the driven transmission shaft (610) is drivingly connected with a sanding belt (602).

8. The water quality contaminant monitoring device of claim 7, wherein: The top end of the driving transmission shaft (608) is fixedly connected with a third rotating shaft (619), the inside bottom end of the floating platform (1) is fixedly connected with a motor (603), the output shaft of the motor (603) penetrates the floating platform (1) and is fixedly connected with the top end of the third rotating shaft (619), the upper end of the third rotating shaft (619) is fixedly connected with a gear (605), and the gear (605) is engaged with an external gear ring (606).

9. The water quality contaminant monitoring device of claim 7, wherein: The surface of the left side short arm end of the suspension plate (607) is fixedly connected with a support (613), and the first spring (612) is fixedly connected between the support (613) and the movable connecting arm (611).

10. The water quality contaminant monitoring device of claim 9, wherein: The lower end front surface of the suspension plate (607) is fixedly connected with a guide frame (614), the surface of the guide frame (614) is slidably sleeved with a moving plate (616), the inside of the moving plate (616) is rotatably connected with a supporting shaft (609), the front end of the moving plate (616) is fixedly connected with a second spring (615), and the end of the second spring (615) away from the moving plate (616) is fixedly connected with the front end of the guide frame (614).

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