A lifting underwater water quality measuring device

Abstract

This invention discloses a lifting underwater water quality measurement device, belonging to the technical field of water quality monitoring equipment. It includes a floating mechanism, a cleaning mechanism, a winding machine, a lifting frame, an isolation chamber mechanism, and a measurement integrated cylinder. The floating mechanism supports the entire structure and floats on the water surface, allowing for rapid relocation by being towed by a vessel. The winding machine controls the lifting frame via a traction rope, driving the measurement integrated cylinder vertically to achieve continuous acquisition of parameters at different water depths. The isolation chamber mechanism consists of two closed half-shells forming a downward-facing compartment, which houses the measurement integrated cylinder. The cleaning mechanism's water-air dual-purpose pump first injects gas into the closed compartment to purge accumulated water and expose the probe, then sprays water to wash away any adhering substances on the probe surface. This device solves the problems of poor mobility, low profile measurement efficiency, and data inaccuracy caused by probe biological contamination in existing equipment, while also offering flexible relocation, efficient stratified monitoring, and reliable in-situ self-cleaning capabilities.

Description

Technical Field

[0001] This invention belongs to the technical field of water quality monitoring equipment, specifically relating to a lifting underwater water quality measuring device. Background Technology

[0002] Water quality monitoring is an indispensable foundational task in fields such as environmental protection, water resource management, aquatic ecological research, drinking water safety, and disaster early warning. Accurate and timely acquisition of the physical, chemical, and biological parameters of water bodies and their distribution in vertical profiles is crucial for assessing the state of the aquatic environment, tracing pollution sources, studying hydrodynamic processes, ensuring water safety, and developing effective water resource protection strategies.

[0003] In existing technologies, during water quality measurement, the probe is submerged in water for extended periods, making its surface highly susceptible to the adhesion of biological and non-biological contaminants such as algae, microorganisms, and silt. These deposits can severely interfere with or even block the sensor's measurement signals, leading to data drift, distortion, or even complete failure. Current cleaning methods typically involve removing the equipment from the water for cleaning, which is time-consuming and labor-intensive, or using underwater mechanical scraping for cleaning. These methods suffer from problems such as complex structures, potential probe damage, introduction of secondary pollution, or incomplete cleaning. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a lifting underwater water quality measuring device to solve the technical problems of difficult in-situ cleaning and easy damage to the probe in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention includes a floating mechanism, a cleaning mechanism, a winding machine, a lifting frame, an isolation chamber mechanism, and a measurement integrated cylinder; The floating mechanism floats on the surface of the measured water body; The winding machine is mounted on the floating mechanism, and the winding machine extends downward with a traction rope that is fixedly connected to the lifting frame. The isolation chamber mechanism includes two halves of a shell that are laterally movable on the lifting frame, and the two halves of the shell are close to each other to form a cabin structure with the opening facing downward. The measuring integrated cylinder is located inside the cabin structure, and the surface of the measuring integrated cylinder is equipped with a measuring probe for measuring water quality; The cleaning mechanism includes a water-air dual-purpose pump installed on the floating mechanism. The water-air dual-purpose pump is connected to an output pipe, which extends downward and passes through one of the half-shells. A nozzle connected to the output pipe of the water-air dual-purpose pump is provided inside the half-shell.

[0006] Optionally, the two ends of the measuring integrated cylinder are rotatably mounted on the lifting frame, and the lifting frame is equipped with a drive motor to drive the measuring integrated cylinder to rotate, with the rotation axis of the measuring integrated cylinder perpendicular to the horizontal plane.

[0007] Optionally, a first telescopic cylinder is fixedly provided inside one of the half-shells, and a connecting block is fixedly connected to the output end of the first telescopic cylinder. The connecting block is fixedly connected to the nozzle, and the first telescopic cylinder drives the nozzle to communicate with the output pipe.

[0008] Optionally, the nozzle is slidably disposed at the end of the output pipe, and a plurality of air holes are formed around the outer side of the upper end of the nozzle. When the nozzle moves downward, the air holes are connected to the output pipe, and when the nozzle moves upward, the nozzle is sealed to the output pipe and isolated from the air holes.

[0009] Optionally, the nozzle spray end has a fan-shaped output port structure, and the fan-shaped water spray range of the nozzle covers the axial direction of the measuring integrated cylinder.

[0010] Optionally, the output pipe includes an upper pipe, an elastic spiral pipe, and a lower pipe. The upper pipe passes through and is fixedly connected to the floating mechanism. The upper pipe is connected to the water-air dual-purpose pump. The elastic spiral pipe extends downward around the traction rope and is connected to the lower pipe. The lower pipe is fixed to the lifting frame.

[0011] Optionally, the lower connecting pipe further includes an outer pipe and an inner pipe. The outer pipe is fixedly connected to the lifting frame. The lower end of the outer pipe is bent toward the moving direction of the half-shell. The inner pipe is fixed and passes through the top of one of the half-shells. The upper end of the inner pipe is bent toward the direction of the outer pipe. When the half-shells are closed, the outer pipe and the inner pipe are sealed and connected.

[0012] Optionally, it also includes a second telescopic cylinder, of which there are two and are respectively installed on the lifting frame, and the two second telescopic cylinders respectively drive the two half shells to move.

[0013] Optionally, it also includes a water-air switching mechanism, which includes a third telescopic cylinder and a connecting arm. The third telescopic cylinder is mounted on the floating mechanism, and its end is connected to the connecting arm. The water-air dual-purpose pump is connected to an input pipe, which is connected to the connecting arm. The third telescopic cylinder drives the output pipe to extend into and leave the water surface.

[0014] Optionally, a filter head may also be included, which is mounted at the end of the input pipe.

[0015] The beneficial effects of this invention are as follows: By setting up a floating structure that floats on the water surface, the floating structure can be moved with the ship, facilitating the transfer of measurement positions. The lifting frame drives the measurement integrated cylinder up and down, enabling rapid measurement of water quality at various depths underwater and quick data acquisition. Furthermore, by setting up a cabin structure to accommodate the measurement integrated cylinder, a water-air dual-purpose pump applies gas to the closed cabin structure after the two half-shells are closed. After the cabin structure is filled with gas, the measurement integrated cylinder is exposed inside the cabin structure. Then, the water-air dual-purpose pump sprays water into the cabin structure to flush the surface of the measurement integrated cylinder, cleaning the surface of the measurement integrated cylinder of any adhering substances that affect water quality measurement. This device achieves convenient relocation through the floating mechanism, greatly improving measurement flexibility. The lifting frame, in conjunction with the winding machine, can quickly change the depth of the measurement integrated cylinder, enabling continuous and efficient acquisition of stratified water profile data. The isolation chamber mechanism works in conjunction with the water-air dual-purpose pump, employing a closed-loop cleaning method of "air-driven water-water flushing": first, gas is injected to purge the water inside the chamber to expose the probe, and then high-pressure water is sprayed to remove adhering substances, effectively preventing measurement inaccuracies caused by biological contamination.

[0016] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0017] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration: Figure 1 Therefore, a schematic diagram of the overall structure and measurement state of the water quality measuring device was invented; Figure 2 A schematic diagram of the overall structure and clean state of the water quality measuring device was invented for this purpose; Figure 3 Therefore, a water quality measuring device was invented with a front view of the measuring state. Figure 4 Therefore, a schematic diagram of the internal structure of a water quality measuring device in a clean state was invented; Figure 5 A cross-sectional view of the nozzle was invented for this purpose; The following are the markings in the attached diagram: 1. Floating mechanism; 21. Water-air dual-purpose pump; 22. Output pipe; 221. Upper connecting pipe; 222. Elastic spiral pipe; 223. Lower connecting pipe; 2231. Outer pipe; 2232. Inner pipe; 23. Nozzle; 231. Air hole; 24. Input pipe; 25. Filter head; 3. Winding machine; 31. Traction rope; 4. Lifting frame; 41. Drive motor; 42. Second telescopic cylinder; 51. Half shell; 52. First telescopic cylinder; 53. Connecting block; 6. Measuring integrated cylinder; 71. Third telescopic cylinder; 72. Connecting arm. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0019] Please refer to the figures. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0020] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0021] This invention provides a lifting underwater water quality measuring device, such as... Figure 1 As shown and Figure 2The system includes a floating mechanism 1, a cleaning mechanism, a winding machine 3, a lifting frame 4, an isolation chamber mechanism, and a measuring integrated cylinder 6. The floating mechanism 1 floats on the surface of the water body being measured and consists of two buoyant floating chambers and a support plate for supporting the equipment. The winding machine 3 is installed on the floating mechanism 1 and is driven by a motor to wind up a traction rope 31. The winding machine 3 extends downward from the traction rope 31 and is fixedly connected to the lifting frame 4. The lifting frame 4 is a square frame structure used to support the measuring integrated cylinder 6 and the cleaning mechanism. To ensure the smooth up and down movement of the lifting frame 4 in the water, the lifting frame is connected to the winding rope at four points at its top. The isolation chamber mechanism includes two halves of shell 51 that are laterally movable on the lifting frame 4, and two second telescopic cylinders 42, each installed on the lifting frame 4. The two second telescopic cylinders 42 drive the two halves of shell 51 to move, and the two halves of shell 51 move closer to each other to form a chamber structure with the opening facing downwards. The structure includes two semi-shells 51 with sealing rubber at their contact edges to ensure the airtightness of the cabin structure when the two semi-shells 51 are closed. The measuring integrated cylinder 6 is located inside the cabin structure, with both ends of the measuring integrated cylinder 6 rotatably mounted on the lifting frame 4. The lifting frame 4 is equipped with a drive motor 41 that drives the measuring integrated cylinder 6 to rotate. The rotation axis of the measuring integrated cylinder 6 is perpendicular to the horizontal plane. The surface of the measuring integrated cylinder 6 is equipped with a measuring probe for measuring water quality. The probe is connected to sensors for measuring various water quality parameters. This is existing technology and will not be described in detail here. In the separated state of the semi-shells 51, the measuring integrated cylinder 6 measures the water quality at various depths underwater as the lifting frame 4 rises and falls. The cleaning mechanism includes a water-air dual-purpose pump 21 installed on the floating mechanism 1. The water-air dual-purpose pump 21 is connected to an output pipe 22. The output pipe 22 extends downward and passes through one of the semi-shells 51. The semi-shell 51 is equipped with a nozzle 23 connected to the output pipe 22 of the water-air dual-purpose pump 21, and the nozzle 23 faces the measuring integrated cylinder 6.

[0022] This device, by incorporating a floating structure, floats on the water surface and can be moved by a ship, facilitating the transfer of measurement positions. The lifting frame 4 moves the measuring integrated cylinder 6 up and down, enabling rapid measurement of water quality at various depths and quick data acquisition. Furthermore, by setting up a cabin structure to house the measuring integrated cylinder 6, a water-air dual-purpose pump 21 applies gas to the closed cabin structure after the two half-shells 51 are joined. Once the cabin structure is filled with gas, the measuring integrated cylinder 6 is exposed inside. Then, the water-air dual-purpose pump 21 sprays water into the cabin structure to flush the measuring cylinder. The surface of the integrated cylinder 6 is cleaned of any adhering substances that may affect water quality measurement. The device achieves convenient relocation through the floating mechanism 1, greatly improving measurement flexibility. The lifting frame, in conjunction with the winding machine 3, can quickly change the depth of the integrated cylinder 6, enabling continuous and efficient acquisition of stratified water profile data. The isolation chamber mechanism works in conjunction with the water-air dual-purpose pump 21, employing a closed-loop cleaning method of "air-driven water-water flushing": first, gas is injected to purge the water in the chamber and expose the probe, then high-pressure water is sprayed to remove adhering substances, effectively preventing measurement inaccuracies caused by biological contamination.

[0023] In further proposals, such as Figure 1 , Figure 4 and Figure 5 As shown, a first telescopic cylinder 52 is fixedly installed inside one of the half-shells 51. A connecting block 53 is fixedly connected to the output end of the first telescopic cylinder 52. The connecting block 53 is fixedly connected to the nozzle 23. The first telescopic cylinder 52 drives the nozzle 23 to communicate with the output pipe 22. The nozzle 23 is slidably disposed at the end of the output pipe 22. Several air holes 231 are opened around the upper outer side of the nozzle 23. When the nozzle 23 moves downward, the air holes 231 communicate with the output pipe 22. When the nozzle 23 moves upward, the nozzle 23 is sealed to the output pipe 22 and isolated from the air holes 231.

[0024] This structure separates the gas output and water output methods. The telescopic cylinder moves the nozzle 23 downward, at which point the air port 231 connects with the output pipe 22. The water-air dual-purpose pump 21 inputs gas, which is output slowly from all around the nozzle 23 until it fills the entire chamber structure. The telescopic cylinder then moves the nozzle 23 upward, at which point the nozzle 23 output port connects with the output pipe 22. The water-air dual-purpose pump 21 inputs water, which is then sprayed out at high pressure from the nozzle 23 output end to clean the surface of the measuring integrated cylinder 6. By separating the two output methods, in the gas output state, the gas output speed is faster and the output volume is larger, so as to fill the entire chamber more quickly. In the water output state, the water outlet output force is greater, so as to clean the measuring integrated cylinder 6 more effectively.

[0025] In further proposals, such as Figure 4The nozzle 23 has a fan-shaped output port structure at its spray end, and the fan-shaped spray range of the nozzle 23 covers the axial direction of the measuring integrated cylinder 6.

[0026] In this structure, the nozzle 23 is set to a fan-shaped output port to ensure the maximum axial range of the cleaning measurement integrated cylinder 6. With the rotation of the measurement integrated cylinder 6, it can clean all probes on the outside of the measurement integrated cylinder 6 in all directions, with strong cleaning power and high cleaning efficiency.

[0027] In further proposals, such as Figure 1 As shown, the output pipe 22 includes an upper pipe 221, an elastic spiral pipe 222, and a lower pipe 223. The upper pipe 221 passes through and is fixedly connected to the floating mechanism 1. The upper pipe 221 is connected to the water-air dual-purpose pump 21. The elastic spiral pipe 222 extends downward around the traction rope 31 and is connected to the lower pipe 223. The lower pipe 223 is fixed to the lifting frame 4.

[0028] By setting this structure, when the entire lifting frame 4 moves up and down, the elastic spiral tube 222 can wrap around the traction rope 31 and adaptably stretch elastically, avoiding underwater entanglement caused by excessive length of the output tube 22 and the problem of affecting the movement of the equipment. In addition, the elastic spiral tube 222 changes with the extension of the traction rope 31. During the movement of the traction rope 31, the elastic spiral tube 222 can scrape off impurities and attachments on the surface of the traction rope 31, avoiding excessive debris and attachments being recycled to the winding machine 3, which would cause the winding machine 3 to jam.

[0029] In further proposals, such as Figure 1 and Figure 3 As shown, the lower connecting pipe 223 also includes an outer pipe 2231 and an inner pipe 2232. The outer pipe 2231 is fixedly connected to the lifting frame 4. The lower end of the outer pipe 2231 is bent toward the moving direction of the half shell 51. The inner pipe 2232 is fixed and passes through the top of one of the half shells 51. The upper end of the inner pipe 2232 is bent toward the outer pipe 2231. A conical sealing head is wrapped around the outer side of the end of the outer pipe 2231. When the half shells 51 are closed, the outer pipe 2231 and the inner pipe 2232 are sealed and connected.

[0030] In this structure, the lower connector 223 is a rigid structure with both ends connected. Compared to a flexible hose, the rigid lower connector 223 can avoid yielding damage caused by repeated bending.

[0031] In further proposals, such as Figure 1As shown, it also includes a water-air switching mechanism, which includes a third telescopic cylinder 71 and a connecting arm 72. The third telescopic cylinder 71 is mounted on the floating mechanism 1, and the end of the third telescopic cylinder 71 is connected to the connecting arm 72. The water-air dual-purpose pump 21 is connected to an input pipe 24, which is connected to the connecting arm 72. The third telescopic cylinder 71 drives the output pipe 22 to extend into and leave the water surface. It also includes a filter head 25, which is mounted on the end of the input pipe 24.

[0032] By setting up a water-gas switching structure, the water and gas output modes can be remotely controlled. When the input pipe 24 is driven away from the water surface by the third telescopic cylinder 71, the water-gas dual-purpose pump 21 works, which is the gas output mode. When the input pipe 24 is driven into the water by the third telescopic cylinder 71, the water-gas dual-purpose pump 21 works, which is the water output mode. By setting up a filter head, impurities in the water are prevented from clogging the equipment. This structure makes reasonable use of the environment, does not require an additional water source, and has a fast remote control response.

[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A lifting underwater water quality measuring device, characterized in that: It includes a floating mechanism (1), a cleaning mechanism, a winding machine (3), a lifting frame (4), an isolation chamber mechanism, and a measurement integrated cylinder (6); The floating mechanism (1) floats on the surface of the water body being measured; The winding machine (3) is installed on the floating mechanism (1), and the winding machine (3) extends the traction rope (31) downward and is fixedly connected to the lifting frame (4); The isolation chamber mechanism includes two halves of a shell (51) that are laterally movable on the lifting frame (4), and the two halves of the shell (51) approach each other to form a cabin structure with the opening facing downward; The measuring integrated cylinder (6) is located inside the cabin structure, and the surface of the measuring integrated cylinder (6) is provided with a measuring probe for measuring water quality; The cleaning mechanism includes a water-air dual-purpose pump (21) installed on the floating mechanism (1), the water-air dual-purpose pump (21) is connected to an output pipe (22), the output pipe (22) extends downward and passes through one of the half-shells (51), and the half-shell (51) is provided with a nozzle (23) connected to the output pipe (22) of the water-air dual-purpose pump (21). The measuring integrated cylinder (6) is rotatably mounted on the lifting frame (4) at both ends. The lifting frame (4) is equipped with a drive motor (41) for driving the measuring integrated cylinder (6) to rotate. The rotation axis of the measuring integrated cylinder (6) is perpendicular to the horizontal plane. One of the half-shells (51) is fixedly provided with a first telescopic cylinder (52) on the inner side. The output end of the first telescopic cylinder (52) is fixedly connected to a connecting block (53). The connecting block (53) is fixedly connected to the nozzle (23). The first telescopic cylinder (52) drives the nozzle (23) to communicate with the output pipe (22). The nozzle (23) is slidably disposed at the end of the output pipe (22). Several air holes (231) are opened around the upper outer side of the nozzle (23). When the nozzle (23) moves downward, the air holes (231) are connected to the output pipe (22). When the nozzle (23) moves upward, the nozzle (23) is sealed to the output pipe (22) and isolated from the air holes (231).

2. The lifting underwater water quality measuring device according to claim 1, characterized in that: The nozzle (23) has a fan-shaped output port structure at the spray end, and the fan-shaped water spray range of the nozzle (23) covers the axial direction of the measuring integrated cylinder (6).

3. The lifting underwater water quality measuring device according to claim 2, characterized in that: The output pipe (22) includes an upper pipe (221), an elastic spiral pipe (222), and a lower pipe (223). The upper pipe (221) passes through and is fixedly connected to the floating mechanism (1). The upper pipe (221) is connected to the water-air dual-purpose pump (21). The elastic spiral pipe (222) extends downward around the traction rope (31) and is connected to the lower pipe (223). The lower pipe (223) is fixed to the lifting frame (4).

4. The lifting underwater water quality measuring device according to claim 3, characterized in that: The lower connecting pipe (223) also includes an outer pipe (2231) and an inner pipe (2232). The outer pipe (2231) is fixedly connected to the lifting frame (4). The lower end of the outer pipe (2231) is bent toward the moving direction of the half shell (51). The inner pipe (2232) is fixed and passes through the top of one of the half shells (51). The upper end of the inner pipe (2232) is bent toward the direction of the outer pipe (2231). The half shells (51) are closed, and the outer pipe (2231) and the inner pipe (2232) are sealed and connected.

5. The lifting underwater water quality measuring device according to claim 4, characterized in that: It also includes a second telescopic cylinder (42), there are two of the second telescopic cylinders (42) and they are respectively installed on the lifting frame (4), and the two second telescopic cylinders (42) respectively drive the two half shells (51) to move.

6. The lifting underwater water quality measuring device according to claim 5, characterized in that: It also includes a water-air switching mechanism, which includes a third telescopic cylinder (71) and a connecting arm (72). The third telescopic cylinder (71) is installed on the floating mechanism (1). The end of the third telescopic cylinder (71) is connected to the connecting arm (72). The water-air dual-purpose pump (21) is connected to an input pipe (24). The input pipe (24) is connected to the connecting arm (72). The third telescopic cylinder (71) drives the output pipe (22) to extend into and leave the water surface.

7. The lifting underwater water quality measuring device according to claim 6, characterized in that: It also includes a filter head (25) which is mounted at the end of the input pipe (24).

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