Outdoor water body fixed-point accurate collection device

By using fluorescent boards to identify pollutants in urban waterways and combining them with cameras and sampling components, precise point-to-point collection of liquid and solid pollutants was achieved, solving the problem of difficulty in sampling liquid pollutants in urban waterways, improving sampling efficiency and reducing sampling difficulty.

CN115639023BActive Publication Date: 2025-12-30SHIJIAZHUANG INST OF AGRI MODERNIZATION CHINESE ACAD OF SCI +1
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Patent Information

Application Number
CN202211220368.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-08
Publication Date
2025-12-30
Estimated Expiration
2042-10-08

AI Technical Summary

Technical Problem

It is difficult to sample liquid pollutants in urban waterways at fixed points, especially for pollutants underwater, making sampling and testing cumbersome.

Method used

An outdoor water body fixed-point precision sampling device is adopted, including a fluorescent board, a bracket, a slider, a scale, a vision component, a liquid sampling component, and a solid sampling component. The device uses tetraethylrhodamine on the fluorescent board to identify pollutants, and a camera to capture red light. Combined with negative pressure opening and closing and auger conveying sampling technologies, it can achieve precise collection of liquid and solid pollutants.

Benefits of technology

It enables precise sampling of liquid and solid pollutants in urban waterways, reducing sampling difficulty, improving sampling efficiency, and allowing for simultaneous cleaning, thus reducing pollutant drift.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of water body pollutant sampling equipment, and discloses an outdoor water body fixed-point accurate collection device, which comprises a fluorescence plate and a support, a sliding block is slidably arranged on the support, the sliding block can slide in the vertical direction and the horizontal direction, a dividing table is arranged on the sliding block, the dividing table is connected with a visual assembly, a liquid sampling assembly and a solid sampling assembly, the visual assembly is provided with a camera, the camera is used for capturing the color of the fluorescence plate, the liquid sampling assembly comprises a first sampling cylinder, the first sampling cylinder is a negative pressure opening and closing type sampling device and is used for collecting liquid, the solid sampling assembly comprises a second sampling cylinder, the second sampling cylinder is a screw conveyor type sampling device and is used for collecting solid, and the first sampling cylinder and the second sampling cylinder are replaced to the position of the camera through the rotation of the dividing table. Through the technical scheme, the problem that liquid pollutants in the water body in the urban river channel are difficult to realize fixed-point sampling can be solved.
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Description

Technical Field

[0001] This invention belongs to the technical field of water pollutant sampling equipment, specifically relating to an outdoor water body fixed-point precision sampling device. Background Technology

[0002] Outdoor water bodies are mainly divided into two major types: lakes and rivers. Rivers are further divided into rivers in uninhabited areas and rivers in residential areas. Rivers in residential areas are further divided into urban rivers and rural rivers.

[0003] Pollutants in urban waterways are mainly classified into liquid and solid pollutants. Liquid pollutants are typically further divided into water-soluble and water-insoluble pollutants. Water-insoluble liquid pollutants can be further categorized as being on the water surface or submerged. Submerged liquid pollutants are difficult to detect because their location varies depending on the type of pollutant. Furthermore, due to the fluidity of the water, accurately identifying sampling points for submerged pollutants is challenging. Therefore, this situation makes pollutant sampling and testing a complex and cumbersome process.

[0004] Dams are usually installed in urban waterways. One of the functions of dams is to reduce the speed of water flow, so that pollutants can settle and accumulate, making them easier to clean up. Through on-site investigation, it has been found that some liquid pollutants in the water can adhere to the dam body. If samples can be taken and tested from the deposits on the dam body, it can be determined whether the water body has been polluted by certain substances over a period of time. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, the present invention provides an outdoor water body fixed-point precision collection device, which can solve the problem of difficulty in achieving fixed-point sampling of liquid pollutants in urban waterways.

[0006] The specific technical solution adopted in this invention is: an outdoor water body fixed-point precision collection device, including a fluorescent plate coated with tetraethylrhodamine located on the side of a dam and a support on the top of the dam. A slider is slidably mounted on the support, and the slider can slide both vertically and horizontally. A scale is mounted on the slider, and the scale is connected to a vision component, a liquid sampling component, and a solid sampling component. The vision component has a camera used to capture the color of the fluorescent plate. The liquid sampling component includes a first sampling cylinder, which is a negative pressure opening and closing sampling type and is used to collect liquid at a designated location of the camera. The solid sampling component includes a second sampling cylinder, which is a screw conveyor sampling type and is used to collect solid at a designated location of the camera. The first sampling cylinder and the second sampling cylinder are switched to the location of the camera by means of the rotation of the scale.

[0007] As a further technical solution, the indexing table is provided with three connecting rods that are evenly arranged, and the camera, the first sampling tube and the second sampling tube are located at the other end of the connecting rods.

[0008] As a further technical solution, the first sampling cylinder includes a first cylinder body disposed at the end of the connecting rod, a negative pressure tube disposed on the first cylinder body, a spring and a baffle disposed inside the first cylinder body, one end of the spring abutting against the bottom wall of the first cylinder body, and the other end abutting against the baffle, and a sealing ring disposed at the end of the first cylinder body, and the baffle pressing against the sealing ring by means of the spring pushing.

[0009] As a further technical solution, the discharge end of the second sampling cylinder is connected to a receiving chamber, and the receiving chamber is provided with a water leakage hole.

[0010] As a further technical solution, the second sampling cylinder includes a second cylinder body disposed at the end of the connecting rod, an auger is disposed inside the second cylinder body, a drive wheel is disposed at the end of the auger, and the drive wheel is rotatably disposed within the accommodating chamber.

[0011] As a further technical solution, the liquid sampling assembly also includes a negative pressure pump, which is mounted on the connecting rod and located above the water surface, and is connected to the negative pressure pipe.

[0012] As a further technical solution, the solid sampling assembly also includes a driver, a drive wheel, and a chain. The driver is mounted on the connecting rod and is located above the water surface. The drive wheel and the drive wheel are both sprockets and are connected by the chain. The drive wheel is rotatably mounted on the connecting rod, and the driver drives the drive wheel to rotate.

[0013] As a further technical solution, both the first sampling cylinder and the second sampling cylinder are provided with a drainage structure on their exterior, and the drainage structure is covered by two symmetrically arranged V-shaped plates.

[0014] As a further technical solution, the outer surface of the V-shaped plate is covered with a biomimetic shark skin material.

[0015] As a further technical solution, a guide component is also included, which includes a guide rail and a slide plate. The slide plate is slidably mounted on the bracket, the guide rail is mounted on the slide plate, and the slider is slidably mounted on the guide rail.

[0016] The beneficial effects of this invention are as follows: The outdoor water body fixed-point precision sampling device includes a fluorescent plate, a support, a slider, a scale, a vision component, a liquid sampling component, and a solid sampling component. The surface of the fluorescent plate is coated with tetraethylrhodamine, which is red and insoluble in water. The red color is more obvious at the bottom of the water. The fluorescent plate is fixedly set on the side of the dam. The support is set on the top of the dam, and the slider is slidably set on the support. The slider can slide in both vertical and horizontal directions. The plane on which the slider slides is a cross-section of the water body perpendicular to the direction of water flow. The scale is set on the slider, so that the scale can be moved to any position on this plane. The vision component, the liquid sampling component, and the solid sampling component are set on the scale. The vision component has a camera, which is an underwater camera. The camera is aimed at the fluorescent plate and illuminates it. The camera can capture the red light emitted by the fluorescent plate. When a pollutant adheres to the fluorescent plate, a black spot will appear in the camera's shooting area. At this time, it can be determined that there is a pollutant that can adhere to the fluorescent plate, and the next sampling action can be carried out. The liquid sampling assembly includes a first sampling cylinder, which employs a negative pressure opening and closing sampling method. This allows for liquid sampling while ensuring that the liquid within the first sampling cylinder remains unaffected after sampling. The solid sampling assembly includes a second sampling cylinder, which is a screw conveyor type and used for sampling solids within the water. The screw conveyor method pushes the solids forward, preventing them from drifting due to the water's dynamics and making the samples difficult to grasp. Once the camera detects the location of a contaminant, it marks it. Then, the slider moves to align the camera with the contaminant area, and the indexing platform rotates. Due to the greater fluidity of liquid contaminants, liquid contaminants can be sampled first, followed by solid contaminant sampling. Furthermore, the solid sampling assembly can also clean up solid waste within the water, thus completing both sampling and cleaning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 for Figure 1 The left view;

[0019] Figure 3 This is a schematic diagram of the liquid sampling component in this invention;

[0020] Figure 4 This is a schematic diagram of the solid sampling component in this invention;

[0021] In the attached diagram, 1. Fluorescent board, 2. Support, 3. Slider, 4. Indexing table, 5. Camera, 6. First sampling cylinder, 7. Second sampling cylinder, 8. Connecting rod, 9. First cylinder body, 10. Negative pressure pipe, 11. Spring, 12. Baffle, 13. Sealing ring, 14. Containing chamber, 15. Second cylinder body, 16. Screwdriver, 17. Drive wheel, 18. Negative pressure pump, 19. Driver, 20. Drive wheel, 21. Drainage structure, 22. Guide rail, 23. Slide plate. Detailed Implementation

[0022] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0024] Specific implementation examples Figures 1 to 4 As shown, the present invention provides an outdoor water body fixed-point precision sampling device, including a fluorescent plate 1 coated with tetraethylrhodamine and located on the side of a dam, and a support 2 on the top of the dam. A slider 3 is slidably mounted on the support 2. The slider 3 can slide both vertically and horizontally. A scale 4 is mounted on the slider 3. The scale 4 is connected to a vision component, a liquid sampling component, and a solid sampling component. The vision component has a camera 5, which is used to capture the color of the fluorescent plate 1. The liquid sampling component includes a first sampling cylinder 6, which is a negative pressure opening and closing sampling type and is used to collect liquid at the location specified by the camera 5. The solid sampling component includes a second sampling cylinder 7, which is a screw conveyor type sampling type and is used to collect solid at the location specified by the camera 5. The first sampling cylinder 6 and the second sampling cylinder 7 are switched to the location of the camera 5 by means of the rotation of the scale 4.

[0025] The outdoor water body fixed-point precision sampling device provided by this invention, compared with the prior art, includes a fluorescent plate 1, a support 2, a slider 3, a scale 4, a vision component, a liquid sampling component, and a solid sampling component. The surface of the fluorescent plate 1 is coated with tetraethylrhodamine, which is red and insoluble in water, and the red color is more obvious at the bottom of the water. The fluorescent plate 1 is fixedly set on the side of the dam. The support 2 is set on the top of the dam, and the slider 3 is slidably set on the support 2. The slider 3 can slide in both vertical and horizontal directions, and the plane in which the slider 3 slides is perpendicular to the water. The water body cross-section in the direction of body flow is indexed. The indexing platform 4 is set on the slider 3, so that the indexing platform 4 can be moved to any position on this plane. The indexing platform 4 is equipped with a vision component, a liquid sampling component, and a solid sampling component. The vision component has a camera 5, which is an underwater camera. The camera 5 is aimed at the fluorescent plate 1 and illuminates it. The camera 5 can capture the red light emitted by the fluorescent plate 1. When pollutants adhere to the fluorescent plate 1, black spots will appear in the shooting area of ​​the camera 5. At this time, it can be determined that there are pollutants that can adhere to the fluorescent plate 1, and the next sampling action can be carried out. The liquid sampling assembly includes a first sampling cylinder 6, which employs a negative pressure opening and closing sampling method. This allows for liquid sampling while ensuring that the liquid within the first sampling cylinder 6 is not affected after sampling. The solid sampling assembly includes a second sampling cylinder 7, which is a screw conveyor type and used for sampling solids in the water. The screw conveyor method pushes the solids, preventing them from drifting under the dynamic force of the water and making the solid samples difficult to grasp. When the camera 5 detects the location of the pollutant, it can mark it. Then, the slider 3 moves so that the camera 5 is directly facing the area of ​​the pollutant. The indexing table 4 then rotates. Because liquid pollutants are more fluid, liquid pollutants can be sampled first, followed by solid pollutant sampling. Furthermore, the solid sampling assembly can also clean up solid waste in the water, thus completing both sampling and cleaning.

[0026] like Figures 1 to 2 As shown, in a specific embodiment of the present invention, the indexing table 4 is provided with three connecting rods 8 evenly arranged, and the camera 5, the first sampling cylinder 6 and the second sampling cylinder 7 are located at the other end of the connecting rods 8.

[0027] In this embodiment, to prevent the indexing table 4 from losing its working capacity due to water ingress, connecting rods 8 can be installed on the indexing table 4. There are three connecting rods 8, corresponding to the vision component, liquid sampling component, and solid sampling component, respectively. The camera 5, the first sampling cylinder 6, and the second sampling cylinder 7 are located at the ends of the corresponding connecting rods 8, thus preventing the indexing table 4 from entering the water. When the water depth is relatively large, the connecting rods 8 can also be set as telescopic rods, so that the length of the connecting rods 8 can be varied. When the connecting rods 8 are not in standby working state, they can be retracted to their shortest state, reducing the workload of the indexing table 4.

[0028] like Figure 3 As shown, in a specific embodiment of the present invention, the first sampling cylinder 6 includes a first cylinder 9 disposed at the end of the connecting rod 8. A negative pressure tube 10 is disposed on the first cylinder 9. A spring 11 and a baffle 12 are disposed inside the first cylinder 9. One end of the spring 11 abuts against the bottom wall of the first cylinder 9, and the other end abuts against the baffle 12. A sealing ring 13 is disposed at the end of the first cylinder 9. The baffle 12 is pressed against the sealing ring 13 by the pushing of the spring 11.

[0029] In this embodiment, the first sampling cylinder 6 includes a first cylinder 9, a spring 11, and a baffle 12. The first cylinder 9 is disposed at the end of the connecting rod 8. A negative pressure pipe 10 is connected to the side wall of the first cylinder 9. The negative pressure pipe 10 is used to provide negative pressure to the inside of the first cylinder 9. A sealing ring 13 is provided at the end of the first cylinder 9. The baffle 12 is slidably disposed inside the first cylinder 9. The spring 11 is disposed inside the first cylinder 9, with one end of the spring 11 abutting against the bottom wall of the first cylinder 9 and the other end abutting against the baffle 12. When there is no negative pressure inside the first cylinder 9, the baffle 12 is pressed against the sealing ring 13 under the action of the spring 11, ensuring the sealing of the first cylinder 9. When sampling is required, negative pressure is provided through the negative pressure pipe 10, causing the baffle 12 to overcome the resistance of the spring 11, and the baffle 12 to leave the sealing ring 13, so that the liquid can enter the first sampling cylinder 6.

[0030] like Figure 2 and Figure 4 As shown, in a specific embodiment of the present invention, the discharge end of the second sampling cylinder 7 is connected to a receiving chamber 14, and the receiving chamber 14 has a water leakage hole.

[0031] In this embodiment, in order to avoid solid contaminants affecting the rotation of the auger 16, it is necessary to discharge the solid contaminants pushed by the auger 16 in a timely manner. A holding chamber 14 is provided at the discharge end of the second sampling cylinder 7. The holding chamber 14 is used to hold solid contaminants. The holding chamber 14 is provided with a water leakage hole so that excess water can be discharged, thereby reducing the weight of the holding chamber 14.

[0032] like Figure 4As shown, in a specific embodiment of the present invention, the second sampling cylinder 7 includes a second cylinder body 15 disposed at the end of the connecting rod 8, an auger 16 disposed inside the second cylinder body 15, and a drive wheel 17 disposed at the end of the auger 16, the drive wheel 17 being rotatably disposed in the accommodating chamber 14.

[0033] In this embodiment, the second sampling cylinder 7 includes a second cylinder 15, an auger 16, and a drive wheel 17. The second cylinder 15 is disposed at the end of the corresponding connecting rod 8. The auger 16 is rotatably disposed in the containment chamber 14, and the drive wheel 17 is fixedly disposed at the end of the auger 16. The driving force is located in the containment chamber 14. When the drive wheel 17 rotates, it drives the auger 16 to rotate. The rotation of the auger 16 can bring solid pollutants into the containment chamber 14.

[0034] like Figure 3 As shown, in a specific embodiment of the present invention, the liquid sampling assembly further includes a negative pressure pump 18, which is mounted on the connecting rod 8 and located above the water surface. The negative pressure pump 18 is connected to the negative pressure pipe 10.

[0035] In this embodiment, in order to provide the pressure required by the negative pressure tube 10, the liquid sampling assembly is equipped with a negative pressure pump 18, which is mounted on the connecting rod 8. The negative pressure pump 18 is connected to the negative pressure tube 10, and the negative pressure pump 18 is always located above the water surface.

[0036] like Figure 4 As shown, in a specific embodiment of the present invention, the solid sampling assembly further includes a driver 19, a drive wheel 20 and a chain. The driver 19 is mounted on the connecting rod 8 and is located above the water surface. The drive wheel 17 and the drive wheel 20 are both sprockets and are connected by a chain. The drive wheel 20 is rotatably mounted on the connecting rod 8, and the driver 19 drives the drive wheel 20 to rotate.

[0037] In this embodiment, the solid sampling assembly also includes a driver 19, a drive wheel 20, and a chain. The driver 19 is mounted on the corresponding connecting rod 8 and is always positioned above the water surface. The drive wheel 20 is rotatably mounted on the connecting rod 8. The driver 19 is used to drive the drive wheel 20 to rotate. The drive wheel 20 is connected to the drive wheel 17 via a chain. The rotation of the drive wheel 20 can cause the drive wheel 17 to rotate, thereby causing the auger 16 to rotate.

[0038] like Figure 2 As shown, in a specific embodiment of the present invention, both the first sampling cylinder 6 and the second sampling cylinder 7 are provided with a drainage structure 21, which covers two symmetrically arranged V-shaped plates.

[0039] In this embodiment, since the first sampling tube 6 and the second sampling tube 7 need to enter the designated water area when sampling, in order to reduce the water flow caused by the first sampling tube 6 and the second sampling tube 7, a drainage structure 21 can be set outside the first sampling tube and the second sampling tube. The drainage structure 21 consists of two V-shaped plates, which are symmetrically arranged. This ensures that the water is pushed as much as possible during the water entry and water exit stages, thereby reducing the water flow in the target water area.

[0040] As a specific embodiment of the present invention, the outer surface of the V-shaped plate is covered with a biomimetic shark skin material.

[0041] In this embodiment, in order to further reduce the impact on water flow, a coating can be wrapped around the outer surface of the V-shaped plate. The coating material is sharkskin, which can reduce the resistance experienced by the surface of the V-shaped plate in water.

[0042] like Figures 1 to 2 As shown, in a specific embodiment of the present invention, a guide component is also included. The guide component includes a guide rail 22 and a slide plate 23. The slide plate 23 is slidably disposed on the bracket 2, the guide rail 22 is disposed on the slide plate 23, and the slider 3 is slidably disposed on the guide rail 22.

[0043] In this embodiment, in order to enable the slider 3 to slide in the vertical and horizontal directions, a guide component is also provided. The guide component includes a guide rail 22 and a slide plate 23. The slide plate 23 is slidably mounted on the bracket 2, the guide rail 22 is mounted on the slide plate 23, and the slider 3 is slidably mounted on the slide plate 23. The bracket 2 is arranged in the horizontal direction, and the guide rail 22 is arranged in the vertical direction.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An outdoor water body fixed-point accurate collection device, characterized in that, The utility model provides a kind of water quality sampling device, including the fluorescence plate (1) of tetraethylrhodamine being applied to the dam side and smearing and the support (2) of dam top, slidingly arranged slider (3) on the support (2), the slider (3) can slide in vertical direction, and can slide in horizontal direction, indexing table (4) is provided on the slider (3), the indexing table (4) is connected with visual assembly, liquid sampling assembly and solid sampling assembly, the visual assembly has camera (5), the camera (5) is used to capture the color of the fluorescence plate (1), the liquid sampling assembly includes first sampling cylinder (6), the first sampling cylinder (6) is negative pressure open-close type sampling and is used to collect liquid in the specified position of the camera (5), the solid sampling assembly includes second sampling cylinder (7), the second sampling cylinder (7) is auger conveying type sampling and is used to collect solid in the specified position of the camera (5), the first sampling cylinder (6) and the second sampling cylinder (7) are replaced to the position where the camera (5) is located by the rotation of the indexing table (4).

2. The outdoor water body fixed-point accurate collection device according to claim 1, characterized in that, Indexing table (4) is provided with connecting rod (8), the connecting rod (8) is three and uniformly arranged, the camera (5), the first sampling cylinder (6) and the second sampling cylinder (7) are arranged at the other end of the connecting rod (8).

3. The outdoor water body fixed-point accurate collection device according to claim 2, characterized in that, The first sampling cylinder (6) includes first cylinder body (9) arranged at the end of the connecting rod (8), the first cylinder body (9) is provided with negative pressure pipe (10), the first cylinder body (9) is provided with spring (11) and baffle (12) in the inside, one end of the spring (11) abuts the bottom wall of the first cylinder body (9), the other end abuts the baffle (12), the end of the first cylinder body (9) is provided with seal ring (13), the baffle (12) is extruded on the seal ring (13) by the push of the spring (11).

4. The outdoor water body fixed-point accurate collection device according to claim 3, characterized in that, The discharge end of the second sampling cylinder (7) is connected with containing bin (14), the containing bin (14) is provided with water leakage hole.

5. The outdoor water body point fixing and accurate collecting device according to claim 4, characterized in that, The second sampling cylinder (7) includes second cylinder body (15) arranged at the end of the connecting rod (8), the second cylinder body (15) is provided with auger (16) in the inside, the end of the auger (16) is provided with driving wheel (17), the driving wheel (17) is rotatably arranged in the containing bin (14).

6. The apparatus of claim 3, wherein, The liquid sampling assembly further includes negative pressure pump (18), the negative pressure pump (18) is arranged on the connecting rod (8) and above water surface, and the negative pressure pump (18) is connected with the negative pressure pipe (10).

7. The outdoor water body pinpoint precision collection device of claim 5, wherein, The solid sampling assembly further includes driver (19), driving wheel (20) and chain, the driver (19) is arranged on the connecting rod (8) and above water surface, the driving wheel (17) and the driving wheel (20) are sprocket and connected by the chain, the driving wheel (20) is rotatably arranged on the connecting rod (8), and the driver (19) drives the driving wheel (20) to rotate.

8. The apparatus of claim 1, wherein, The first sampling cylinder (6) and the second sampling cylinder (7) are both externally provided with drainage structures (21), and the drainage structures (21) cover two symmetrically arranged V-shaped plates.

9. The outdoor water body pinpoint precision collection device of claim 8, wherein, The outer surface of the V-shaped plate is wrapped with a coating of bionic sharkskin material.

10. The apparatus of claim 1, wherein, Further comprising a guide assembly, the guide assembly comprises a guide rail (22) and a sliding plate (23), the sliding plate (23) is slidingly arranged on the support (2), the guide rail (22) is arranged on the sliding plate (23), and the sliding block (3) is slidingly arranged on the guide rail (22).

Citation Information

Patent Citations

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  • Water quality sampler integrating opening and closing and 360-degree image acquisition

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