Layered water quality sampling and real-time monitoring device

Abstract

The invention relates to the technical field of water quality monitoring, discloses a stratified water quality sampling and real-time monitoring device, and discloses a stratified water quality sampling and real-time monitoring integrated device. The device is composed of a floating system, a dynamic positioning system, a control center and a core sampling execution mechanism. The sinking and action of the sampling bottle are controlled through two groups of independently controlled collecting and releasing assemblies, and the sampling bottle is accurately opened at a preset water depth to complete water sample collection and automatic sealing by utilizing mechanical linkage and pressure difference principles. Meanwhile, the device creatively integrates a water depth real-time monitoring function, and water depth data of sampling points can be synchronously obtained through grounding sensing and paying-off length metering. The whole layered water quality monitoring system has the advantages of high automation degree, accurate positioning, high storm resistance, good anti-pollution effect and the like, and the layered water quality monitoring efficiency and reliability are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of water quality monitoring technology, specifically a stratified water quality sampling and real-time monitoring device. Background Technology

[0002] With increasing environmental awareness and growing concern for water quality, water quality monitoring has become a crucial aspect of water resource management and protection. Especially in lakes, reservoirs, and rivers, water quality parameters at different depths often exhibit significant differences. For example, dissolved oxygen, temperature, nutrient concentrations, and pollutant concentrations frequently change with depth, resulting in stratification. Therefore, conducting stratified water quality sampling and monitoring is of great significance for comprehensively evaluating water quality, analyzing pollution distribution characteristics, and developing scientific remediation measures.

[0003] Currently, traditional water sampling is mostly conducted manually or using simple mechanical methods, such as manually collecting water samples at different depths using a water sampler. These methods are not only inefficient and labor-intensive, but also lack precise control over sampling depth, making it difficult to achieve simultaneous, multi-layered continuous monitoring. Although some automated water sampling equipment has emerged, most still suffer from problems such as complex structure, inconvenient operation, limited positioning accuracy, and inability to simultaneously perform sampling and real-time water depth monitoring. Especially in practical water applications, ensuring the sampling device floats stably, positions accurately, samples at different layers as needed, and simultaneously acquires depth information remains a key technical challenge for current water quality monitoring equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a stratified water quality sampling and real-time monitoring device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A stratified water quality sampling and real-time monitoring device includes a base, a sampling bottle, a floating component, a positioning drive component, a first retraction component, and a second retraction component; A mounting base is fixedly installed on the base, and a control center is installed at the bottom of the mounting base. The floating component and the positioning drive component are mounted on the base and are used to drive the device to float and move on the water surface. The first take-up and release assembly and the second take-up and release assembly are mounted on the mounting base one. The sampling bottle is connected to the wire release end of the first take-up and release assembly and the second take-up and release assembly. The first take-up and release assembly is connected to the mounting end of the sampling bottle, and the second take-up and release assembly is connected to the sampling end of the sampling bottle. The first and second take-up / delivery components have the same structure, including a second mounting base fixedly connected to a first mounting base, a servo motor fixedly mounted on the second mounting base, a take-up / delivery drum fixedly mounted on the output shaft of the servo motor, one end of a traction rope wound inside the take-up / delivery drum, and a connecting ring fixedly mounted on the other end of the traction rope. A third mounting base is fixedly mounted on the first mounting base, and a rotating arm is rotatably connected to the bottom of the third mounting base via a rotating connecting frame. A friction roller is rotatably connected to one end of the rotating arm, and the traction rope is spirally wound around the friction roller. A connecting seat is fixedly connected to the other end of the rotating arm, a spring is installed between the top of the connecting seat and the top of the third mounting base, and a contact switch is installed between the bottom of the connecting seat and the bottom of the third mounting base.

[0006] As a further embodiment of the present invention: a connecting column is fixedly connected to the top of the sampling bottle, an air outlet is provided on one side of the top of the sampling bottle, an exhaust pipe is fixedly connected inside the air outlet, a sealing ball is installed inside the exhaust pipe, and a baffle is fixedly connected to the top of the exhaust pipe. A sampling port is provided on the other side of the top of the sampling bottle. A water inlet pipe is fixedly connected to the sampling port. A sealing cylinder is fixedly connected to the bottom of the water inlet pipe. A sealing block is installed inside the sealing cylinder. A positioning cylinder is fixedly connected to the top of the water inlet pipe. A sliding connecting rod is slidably connected inside the positioning cylinder. A spring is installed between the sealing block and the positioning cylinder.

[0007] As a further embodiment of the present invention: a photoelectric gate is fixedly installed inside the mounting base two, and a light-shielding plate fixedly connected to the winding drum is provided inside the photoelectric gate.

[0008] As a further aspect of the present invention: the top of the connecting column and the sliding connecting rod are connected to a second connecting ring by a traction rope, and the second connecting ring and the first connecting ring are stably connected by a safety buckle. The connecting column is connected to the first retracting assembly by a traction rope, and the sliding connecting rod is connected to the second retracting assembly by a traction rope.

[0009] As a further aspect of the present invention: an inductive counterweight is fixedly connected to the bottom of the sampling bottle by a connecting rope 2.

[0010] As a further aspect of the present invention: a sampling port is provided inside the base, and the sampling bottle is placed inside the sampling port.

[0011] As a further aspect of the present invention, an overflow protection port is fixedly connected inside the sampling port.

[0012] As a further aspect of the present invention: the floating component includes a float fixedly connected to the edge of the base, and multiple sets of circumferentially distributed connecting ropes are fixedly connected to the bottom of the float, with a counterweight fixedly installed at the bottom of the connecting ropes.

[0013] As a further aspect of the present invention: the positioning drive assembly includes two sets of drive propellers connected to the control center, and the two sets of drive propellers are fixedly installed at the bottom of the base.

[0014] As a further embodiment of the present invention: a fixing rod is fixedly connected to the base, a satellite positioning device is installed on the fixing rod, and a photovoltaic panel is fixedly installed on the fixing rod.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: This invention discloses an integrated device for stratified water quality sampling and real-time monitoring. The device consists of a floating system, a dynamic positioning system, a control center, and a core sampling execution mechanism. It controls the sinking and movement of the sampling bottle through two independently controlled launch and take-off components. Utilizing mechanical linkage and pressure difference principles, it precisely opens the sampling bottle at a preset water depth to complete water sample collection and automatically seals it. Simultaneously, the device innovatively integrates real-time water depth monitoring, simultaneously acquiring water depth data at the sampling point through bottom contact sensing and line length measurement. Overall, it possesses advantages such as high automation, accurate positioning, strong resistance to wind and waves, and good anti-pollution effect, significantly improving the efficiency and reliability of stratified water quality monitoring. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a stratified water quality sampling and real-time monitoring device according to the present invention.

[0017] Figure 2 This is an isometric view of a stratified water quality sampling and real-time monitoring device according to the present invention.

[0018] Figure 3 This is a schematic diagram of the floating component in a stratified water quality sampling and real-time monitoring device of the present invention.

[0019] Figure 4 This is a schematic diagram of the installation of the traction rope in a stratified water quality sampling and real-time monitoring device of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of the first and second receiving / delivering components in a stratified water quality sampling and real-time monitoring device of the present invention.

[0021] Figure 6 This is a schematic diagram of the contact switch in a stratified water quality sampling and real-time monitoring device of the present invention.

[0022] Figure 7 This is a schematic diagram of the sampling bottle in a stratified water quality sampling and real-time monitoring device of the present invention.

[0023] In the diagram: 1-Base, 2-Float, 3-Connecting rope one, 4-Balance weight, 5-Fixing rod, 6-Photovoltaic panel, 7-Satellite positioning device, 8-Mounting base one, 9-Control center, 10-Drive propeller, 11-Sampling port, 12-Overflow protection port, 13-Mounting base two, 14-Servo motor, 15-Rolling drum, 16-Traction rope, 17-Photoelectric gate, 18-Light shield, 19-Connecting ring one, 20-Mounting base three, 21-Rotator 22-Moving connecting frame, 23-Rotating arm, 24-Friction roller, 25-Connecting seat, 26-Spring 1, 27-Contact switch, 28-Sampling bottle, 29-Connecting rope 2, 30-Inductive counterweight, 31-Connecting ring 2, 32-Safety buckle, 33-Exhaust pipe, 34-Sealing ball, 35-Baffle, 36-Water inlet pipe, 37-Positioning cylinder, 38-Sealing cylinder, 39-Sealing block, 40-Spring 2, 41-Sliding connecting rod. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, see [reference] Figures 1 to 7 A stratified water quality sampling and real-time monitoring device includes a base 1, a sampling bottle 27, a floating component, a positioning drive component, a first retraction component, and a second retraction component; A mounting base 8 is fixedly installed on the base 1, and a control center 9 is installed at the bottom of the mounting base 8. The floating component and the positioning drive component are mounted on the base 1 and are used to drive the device to float and move on the water surface. The first take-up and release assembly and the second take-up and release assembly are mounted on the mounting base 8. The sampling bottle 27 is connected to the wire release end of the first take-up and release assembly and the second take-up and release assembly. The first take-up and release assembly is connected to the mounting end of the sampling bottle 27, and the second take-up and release assembly is connected to the sampling end of the sampling bottle 27. The first and second take-up and release components have the same structure, including a second mounting base 13 fixedly connected to the first mounting base 8. A servo motor 14 is fixedly mounted on the second mounting base 13. A take-up and release drum 15 is fixedly mounted on the output shaft of the servo motor 14. One end of a traction rope 16 is wound inside the take-up and release drum 15. A connecting ring 19 is fixedly mounted on the other end of the traction rope 16. A third mounting base 20 is fixedly mounted on the first mounting base 8. A rotating arm 22 is rotatably connected to the bottom of the third mounting base 20 through a rotating connecting frame 21. A friction roller 23 is rotatably connected to one end of the rotating arm 22. The traction rope 16 is spirally wound on the friction roller 23. A connecting seat 24 is fixedly connected to the other end of the rotating arm 22. A spring 25 is installed between the top of the connecting seat 24 and the top of the third mounting base 20. A contact switch 26 is installed between the bottom of the connecting seat 24 and the bottom of the third mounting base 20. When sampling water at different depths, this invention first inputs position data to the control center 9. Then, the floating component and positioning drive component drive the device to float and move on the water surface, simultaneously inputting water depth data to the control center 9. The control center 9 then converts the depth data into rotation data for the take-up and release drum 15 based on its diameter. The control center 9 then controls two sets of servo motors 14 to rotate, thereby rotating the two sets of take-up and release drums 15, releasing the two sets of traction ropes 16. At this time, the sampling bottle 27 sinks rapidly under gravity. Then, when... After the traction rope 16 in the first deployment and recovery assembly is released to the input water depth data, the second deployment and recovery assembly stops releasing, while the first deployment and recovery assembly continues to release the traction rope 16. The sampling bottle 27 continues to sink. At this time, the sampling end of the sampling bottle 27 opens under the action of the traction rope 16 on the second deployment and recovery assembly. Water at the predetermined depth enters the sampling bottle 27 along the sampling end, thus completing the sampling. Then, the first deployment and recovery assembly and the second deployment and recovery assembly are controlled to operate synchronously to wind up the traction rope 16. The two sets of traction ropes 16 wind up synchronously, and the sampling bottle 27 floats up under the action of the traction rope 16. Then, when it is necessary to monitor the water depth at different locations, a set of extremely large depth data is first input to the control center 9. The control center 9 then controls the first and second retraction components to operate synchronously, releasing the traction rope 16. During this process, the spiral winding of the traction rope 16 with the friction roller 23 applies a downward traction force to the friction roller 23, thereby driving the rotating arm 22 to rotate and press down. The rotating arm 22 drives the connecting seat 24 to compress the spring 25, thereby causing the contact switch 26 to open. After receiving the signal that the contact switch 26 is open, the control center 9 controls the first and second retraction components to operate synchronously. As the component continues to extend, the sampling bottle 27 sinks rapidly under the influence of gravity. Once the sampling bottle 27 reaches the bottom, the traction rope 16 is no longer pulled by the gravity of the sampling bottle 27. At this point, the friction roller 23 is no longer subjected to downward traction, and the spring 25 loses its compression and resets, thereby pushing the contact switch 26 to close. When the control center 9 receives the electrical signal indicating that the contact switch 26 has closed, it can control the first and second retraction components to stop operating. Then, it calculates the length of the traction rope 16 extended by the first and second retraction components, and then monitors the water depth at the monitoring point in real time based on the extended length of the traction rope 16.

[0026] In one instance of this embodiment, please refer to Figure 7 The sampling bottle 27 is fixedly connected to a connecting column 30 at the top. An air outlet is provided on one side of the top of the sampling bottle 27. An exhaust pipe 33 is fixedly connected inside the air outlet. A sealing ball 34 is installed inside the exhaust pipe 33. A baffle 35 is fixedly connected to the top of the exhaust pipe 33. A sampling port is provided on the other side of the top of the sampling bottle 27. A water inlet pipe 36 is fixedly connected inside the sampling port. A sealing cylinder 38 is fixedly connected to the bottom of the water inlet pipe 36. A sealing block 39 is installed inside the sealing cylinder 38. A positioning cylinder 37 is fixedly connected to the top of the water inlet pipe 36. A sliding connecting rod 41 is slidably connected inside the positioning cylinder 37. A spring 40 is installed between the sealing block 39 and the positioning cylinder 37. The top of the connecting column 30 and the sliding connecting rod 41 are connected to a connecting ring 2 31 by a traction rope 16. The connecting ring 2 31 and the connecting ring 1 19 are stably connected by a safety buckle 32. The connecting column 30 is connected to the first retraction assembly by the traction rope 16. The sliding connecting rod 41 is connected to the second retraction assembly by the traction rope 16. The bottom of the sampling bottle 27 is fixedly connected to an inductive counterweight 29 by a connecting rope 2 28. When the first and second retraction components operate synchronously and release the traction rope 16, both sets of traction ropes 16 are released simultaneously. At this time, the sampling bottle 27 sinks towards the bottom of the water under the action of the gravity of the inductive counterweight 29. During this process, the sealing block 39 is sealed inside the sealing cylinder 38 under the push of the second spring 40. Thus, the sampling port is sealed by the cooperation between the sealing block 39 and the sealing cylinder 38. At the same time, the sealing ball 34 is pressed against the exhaust pipe 33 under the action of water pressure, thereby sealing the exhaust port. After the traction rope 16 has been released to a certain length, the second retraction component stops releasing, while the first retraction component continues to release. The traction rope 16, at this time, the gravity of the sensing counterweight 29 acts on the sampling bottle 27, while the sealing block 39 remains stationary under the action of the traction rope 16 in the second retraction assembly. However, as the traction rope 16 in the first retraction assembly continues to be released, the sampling bottle 27 continues to sink under the gravity of the sensing counterweight 29. At this time, the sealing block 39 slides out of the sealing cylinder 38, thereby opening the sampling port. At this time, water flows into the sampling bottle 27 under the action of pressure. Then, the pressure of the water acts on the sealing ball 34 through the gas in the sampling bottle 27, thereby pushing the sealing ball 34 away from the exhaust pipe 33, and then through pressure The differential pressure pushes the sealing ball 34 open, thus opening the vent and allowing the sampling bottle 27 to be discharged through the vent. Water then rapidly enters the sampling bottle 27 through the sampling port under the pressure difference, completing the water sampling. After sampling, the second retraction assembly stops operating, while the first retraction assembly winds up the traction rope 16, causing the sampling bottle 27 to float upwards. At this time, the second spring 40 loses pressure, pushing the sealing block 39 to slide into the sealing cylinder 38 again, thus resealing the sampling port. Simultaneously, when the sampling bottle 27 is filled with water, the pressure inside and outside the bottle is equal, and the sealing ball 34 sinks back into the vent cylinder 3 under gravity. The exhaust pipe 33 is sealed to prevent the collected water sample from being contaminated. After the sampling port and the exhaust port are sealed, the first and second retraction components operate synchronously to wind up the traction rope 16. The two sets of traction ropes 16 wind up synchronously, and the sampling bottle 27 floats up under the pull of the traction rope 16. Then the staff can open the safety buckle 32 to remove the connecting ring 21 from the safety buckle 32 and remove the sampling bottle 27. Then the connecting ring 21 on the new set of sampling bottles 27 is put into the safety buckle 32 to complete the replacement of the sampling bottle 27 and complete the sampling of the water body at the predetermined depth.

[0027] In one instance of this embodiment, please refer to Figure 5A photoelectric gate 17 is fixedly installed inside the mounting base 13. A light-shielding plate 18 is fixedly connected to the take-up and unwinding drum 15 inside the photoelectric gate 17. In this invention, the take-up and unwinding drum 15 drives the light-shielding plate 18 to rotate, thereby causing the light-shielding plate 18 to move between the photoelectric gates 17. Every time the take-up and unwinding drum 15 rotates once, the light-shielding plate 18 passes through the photoelectric gate 17 once. At this time, the signal of the photoelectric gate 17 is blocked once, and the control center 9 records an electrical signal once. At the same time, since the diameter of the take-up and unwinding drum 15 remains unchanged, the electrical signal received by the control center 9 can be converted into a length signal according to the diameter of the take-up and unwinding drum 15. Then, the wire length of the equipment can be measured according to the signal emitted by the photoelectric gate 17, and the wire length of the equipment can be controlled by the control center 9, thereby realizing the control of the sampling depth of the equipment.

[0028] In one instance of this embodiment, please refer to Figure 3 The base 1 is provided with a sampling port 11, and the sampling bottle 27 is placed in the sampling port 11. An overflow protection port 12 is fixedly connected in the sampling port 11. The present invention facilitates the quick assembly and disassembly of the sampling bottle 27 by setting the sampling port 11, and at the same time restricts the water at the bottom of the base 1 by setting the overflow protection port 12, thereby preventing the water at the bottom of the base 1 from overflowing onto the base 1 and affecting the operation of the equipment.

[0029] In one instance of this embodiment, please refer to Figure 3 The floating component includes a float 2 fixedly connected to the edge of the base 1, and multiple sets of circumferentially distributed connecting ropes 3 are fixedly connected to the bottom of the float 2. A counterweight 4 is fixedly installed at the bottom of the connecting ropes 3. The floating component supports the base 1 through the buoyancy of the float 2 in the water, thereby making the equipment float on the water surface. Then, by setting the counterweight 4, the center of gravity of the equipment is lowered and kept below the water surface, thereby improving the equipment's resistance to wind and waves.

[0030] In one instance of this embodiment, please refer to Figure 2 and Figure 3The positioning drive assembly includes two sets of drive propellers 10 connected to the control center 9. The two sets of drive propellers 10 are fixedly installed at the bottom of the base 1. A fixed rod 5 is fixedly connected to the base 1, and a satellite positioning device 7 is installed on the fixed rod 5. A photovoltaic panel 6 is fixedly installed on the fixed rod 5. The positioning drive assembly provides rain protection for the equipment through the photovoltaic panel 6, while driving the equipment through photovoltaic power generation. At the same time, the satellite positioning device 7 performs satellite positioning of the equipment. Then, the control center 9 locates and analyzes the predetermined position of the equipment. The control center 9 then controls the two sets of drive propellers 10 to operate, thereby driving the equipment to move. The differential speed of the two sets of drive propellers 10 can be controlled to control the direction of movement of the equipment, thereby controlling the position of the equipment on the water surface.

[0031] 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, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A layered water quality sampling and real-time monitoring device, characterized in that, Includes a base, sampling bottle, floating component, positioning drive component, first deployment component, and second deployment component; A mounting base is fixedly installed on the base, and a control center is installed at the bottom of the mounting base. The floating component and the positioning drive component are mounted on the base and are used to drive the device to float and move on the water surface. The first take-up and release assembly and the second take-up and release assembly are mounted on the mounting base one. The sampling bottle is connected to the wire release end of the first take-up and release assembly and the second take-up and release assembly. The first take-up and release assembly is connected to the mounting end of the sampling bottle, and the second take-up and release assembly is connected to the sampling end of the sampling bottle. The first and second take-up / delivery components have the same structure, including a second mounting base fixedly connected to a first mounting base, a servo motor fixedly mounted on the second mounting base, a take-up / delivery drum fixedly mounted on the output shaft of the servo motor, one end of a traction rope wound inside the take-up / delivery drum, and a connecting ring fixedly mounted on the other end of the traction rope. A third mounting base is fixedly mounted on the first mounting base, and a rotating arm is rotatably connected to the bottom of the third mounting base via a rotating connecting frame. A friction roller is rotatably connected to one end of the rotating arm, and the traction rope is spirally wound around the friction roller. A connecting seat is fixedly connected to the other end of the rotating arm, a spring is installed between the top of the connecting seat and the top of the third mounting base, and a contact switch is installed between the bottom of the connecting seat and the bottom of the third mounting base.

2. The layered water quality sampling and real-time monitoring device according to claim 1, wherein, A connecting column is fixedly connected to the top of the sampling bottle, and an air outlet is provided on one side of the top of the sampling bottle. An exhaust pipe is fixedly connected inside the air outlet, and a sealing ball is installed inside the exhaust pipe. A baffle is fixedly connected to the top of the exhaust pipe. A sampling port is provided on the other side of the top of the sampling bottle. A water inlet pipe is fixedly connected to the sampling port. A sealing cylinder is fixedly connected to the bottom of the water inlet pipe. A sealing block is installed inside the sealing cylinder. A positioning cylinder is fixedly connected to the top of the water inlet pipe. A sliding connecting rod is slidably connected inside the positioning cylinder. A spring is installed between the sealing block and the positioning cylinder.

3. The stratified water quality sampling and real-time monitoring device according to claim 1, characterized in that, A photoelectric door is fixedly installed inside the mounting base 2, and a light-shielding plate is fixedly connected to the winding drum inside the photoelectric door.

4. The layered water quality sampling and real-time monitoring device according to claim 2, wherein, The top of the connecting column and the sliding connecting rod are connected to a second connecting ring via a traction rope. The second connecting ring and the first connecting ring are stably connected by a safety buckle. The connecting column is connected to the first retraction assembly via a traction rope, and the sliding connecting rod is connected to the second retraction assembly via a traction rope.

5. The layered water quality sampling and real-time monitoring device of claim 1, wherein, The bottom of the sampling bottle is fixedly connected to an inductive counterweight by a connecting rope.

6. The layered water quality sampling and real-time monitoring device of claim 1, wherein The base is provided with a sampling port, and the sampling bottle is placed inside the sampling port.

7. The layered water quality sampling and real-time monitoring device of claim 6, wherein, An overflow protection port is fixedly connected inside the sampling port.

8. The layered water quality sampling and real-time monitoring device of claim 1, wherein, The floating component includes a float fixedly connected to the edge of the base, and multiple sets of circumferentially distributed connecting ropes are fixedly connected to the bottom of the float. A counterweight is fixedly installed at the bottom of the connecting ropes.

9. The layered water quality sampling and real-time monitoring device of claim 1, wherein, The positioning drive assembly includes two sets of drive propellers connected to the control center, and the two sets of drive propellers are fixedly installed at the bottom of the base.

10. The stratified water quality sampling and real-time monitoring device according to claim 1, characterized in that, A fixing rod is fixedly connected to the base, a satellite positioning device is installed on the fixing rod, and a photovoltaic panel is fixedly installed on the fixing rod.

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