Online water quality automatic monitoring device

By designing an online automatic water quality monitoring device, and utilizing the coordinated operation of the buoyancy section, suction pump, solenoid valve, and air pump, the problem of difficulty in adjusting the sampling depth of traditional water quality monitoring devices is solved, realizing automated sampling and monitoring at multiple depths, and improving monitoring efficiency and accuracy.

CN224122588UActive Publication Date: 2026-04-14CHENGDU NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional water quality monitoring devices are difficult to adjust the sampling depth flexibly and cannot achieve automated monitoring at multiple depths, especially in complex aquatic environments where it is difficult to obtain representative water quality samples.

Method used

An online automatic water quality monitoring device was designed. The sampling unit adjusts its depth by buoyancy, and the device is combined with a suction pump, a solenoid valve and an air pump to achieve automated sampling and monitoring.

Benefits of technology

It enables flexible and automatic sampling of water bodies at different depths, improving monitoring efficiency and accuracy while reducing human intervention.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water quality monitoring devices, in particular to an on-line automatic water quality monitoring device. Comprising a positioning part and a connecting hose, the connecting hose is provided with a plurality of sampling parts, each sampling part is provided with a snorkeling part, and the snorkeling parts are used for driving the heights of the sampling parts; the positioning part is provided with a suction pump, the connecting hose is connected with the suction pump, the snorkeling part comprises a positioning rod and an adjusting air bag, the adjusting air bag is connected with the connecting hose, the adjusting air bag is provided with an air pump, and when the air pump operates, the buoyancy of the adjusting air bag is changed, so that the adjusting air bag moves along the positioning rod. Through the design of the snorkeling part, the height of the sampling part can be flexibly adjusted, and automatic sampling of water bodies with different depths is realized, so that the water quality condition is reflected more comprehensively.
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Description

Technical Field

[0001] This utility model relates to the technical field of water quality monitoring devices, specifically an online automatic water quality monitoring device. Background Technology

[0002] Traditional water quality monitoring devices typically employ fixed sampling methods, with sampling points at fixed locations, making it difficult to flexibly monitor water quality at different depths. Furthermore, existing monitoring devices often require manual intervention to adjust the sampling depth, which is not only inefficient but also hinders continuous and automated water quality monitoring. In complex aquatic environments, such as lakes, rivers, or nearshore areas, significant vertical water quality differences may exist, requiring monitoring devices to adjust sampling depth as needed to obtain more representative water samples. Therefore, there is an urgent need for an online water quality monitoring device capable of automatically adjusting sampling depth and achieving multi-depth sampling to improve the accuracy and efficiency of water quality monitoring. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides an online automatic water quality monitoring device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an online automatic water quality monitoring device, including a positioning part and a connecting hose, wherein the connecting hose is equipped with a plurality of sampling parts, each sampling part is equipped with a buoyancy part, and the buoyancy part is used to drive the height of the sampling part;

[0005] The positioning part is equipped with a suction pump, and the connecting hose is connected to the suction pump. The snorkeling part includes a positioning rod and an adjusting airbag. The adjusting airbag is connected to the connecting hose and is equipped with an air pump. When the air pump is running, it changes the buoyancy of the adjusting airbag, causing the adjusting airbag to move along the positioning rod.

[0006] As an optimization, the sampling unit includes a sampling tube and a filter head. The sampling tube is connected to the connecting hose. The sampling tube is equipped with a first solenoid valve, and the connecting hose is equipped with a plurality of second solenoid valves. The second solenoid valves are located on the side of the sampling unit away from the positioning part.

[0007] As an optimization, the positioning rod is vertically inserted into the bottom of the water, the adjusting airbag is equipped with a connecting frame, the connecting frame is connected to the connecting hose, the connecting frame is equipped with a limit ring, and the limit ring is sleeved on the outside of the positioning rod;

[0008] The air pump is fixedly connected to the connecting frame. The connecting end of the air pump is equipped with a vent pipe, which is set vertically upward and the length of the vent pipe is greater than the water depth to be detected.

[0009] As an optimization, the regulating airbag has two connecting ears that are connected through it, and the positioning rod is located between the two connecting ears. When the regulating airbag is inflated, the two connecting ears expand and clamp the positioning rod, and the outer ends of the two connecting ears are connected to a limit rope.

[0010] The beneficial effects of this plan are as follows:

[0011] The design of the snorkeling section allows for flexible adjustment of the sampling height, enabling automatic sampling of water at different depths and thus providing a more comprehensive reflection of water quality. The device achieves automation of sampling, adjustment, and monitoring through the coordinated operation of a suction pump, solenoid valves (first and second solenoid valves), and an air pump, reducing manual intervention and improving monitoring efficiency. Attached Figure Description

[0012] Figure 1 This is an axonometric view of the present invention.

[0013] Figure 2 This is an isometric view of the connection structure between the snorkeling part and the connecting hose of this utility model.

[0014] Figure 3 This is a front view schematic diagram of the connection structure between the snorkeling part and the connecting hose of this utility model.

[0015] Figure 4 This is a right-side view of the connection structure between the snorkeling part and the connecting hose of this utility model.

[0016] Figure 5 This utility model Figure 2 A magnified structural diagram of part A.

[0017] Figure 6 This utility model Figure 2 A magnified structural diagram of part B.

[0018] The components include: 1. connecting hose, 2. suction pump, 3. positioning rod, 4. adjusting airbag, 5. air pump, 6. sampling tube, 7. filter head, 8. first solenoid valve, 9. second solenoid valve, 10. limit ring, 11. vent tube, and 12. connecting ear. Detailed Implementation

[0019] like Figures 1-6 As shown, an online automatic water quality monitoring device includes a positioning part and a connecting hose 1. The connecting hose 1 is equipped with a plurality of sampling parts, each sampling part being equipped with a buoyancy part, the buoyancy part being used to adjust the height of the sampling part.

[0020] The positioning part is equipped with a suction pump 2, and the connecting hose 1 is connected to the suction pump 2. The snorkeling part includes a positioning rod 3 and an adjusting airbag 4. The adjusting airbag 4 is connected to the connecting hose 1. The adjusting airbag 4 is equipped with an air pump 5. When the air pump 5 is running, it changes the buoyancy of the adjusting airbag 4, causing the adjusting airbag 4 to move along the positioning rod 3.

[0021] The length of the connecting hose 1 is greater than the distance between the multiple positioning rods 3. The length of the connecting hose 1 should be reasonably set according to the number of snorkeling sections operating simultaneously as needed. Positioning rods 3 can be equipped with position detection modules to detect the position of the regulating airbag 4 on the positioning rod 3. Correspondingly, the position detection module can also be set at the bottom of the regulating airbag 4 to detect the distance between the regulating airbag 4 and the bottom of the water. The position detection module can use laser rangefinders, ultrasonic sensors, etc.

[0022] like Figure 1 and Figure 5 As shown, the sampling unit includes a sampling tube 6 and a filter head 7. The sampling tube 6 is connected to the connecting hose 1. The sampling tube 6 is equipped with a first solenoid valve 8. The connecting hose 1 is equipped with a plurality of second solenoid valves 9. The second solenoid valves 9 are located on the side of the sampling unit away from the positioning part.

[0023] The first solenoid valve 8 is used to control the opening and closing of the sampling tube 6. When the sampling tube 6 is sampling, the second solenoid valve 9 on the side away from the positioning part should be in the closed state.

[0024] like Figure 5 As shown, the positioning rod 3 is vertically inserted into the bottom of the water, the adjusting airbag 4 is equipped with a connecting frame, the connecting frame is connected to the connecting hose 1, the connecting frame is equipped with a limiting ring 10, and the limiting ring 10 is sleeved on the outside of the positioning rod 3;

[0025] The air pump 5 is fixedly connected to the connecting frame. The connecting section of the air pump 5 is equipped with a vent pipe 11. The vent pipe 11 is set vertically upward and its length is greater than the water depth to be detected.

[0026] When the regulating airbag 4 is filled with gas, it floats on the water surface. When some gas is expelled, the regulating airbag 4 sinks downwards along the positioning rod 3. To prevent the vent pipe 11 from being completely submerged, a limiting rod is installed at the upper part of the vent pipe 11, and a limiting frame is installed at the upper part of the positioning rod 3. The limiting frame limits the limiting rod, as detailed below. Figure 6 As shown.

[0027] like Figure 5As shown, the regulating airbag 4 is connected to two connecting ears 12, and the positioning rod 3 is located between the two connecting ears 12. When the regulating airbag 4 is inflated, the two connecting ears 12 expand and clamp the positioning rod 3. The outer ends of the two connecting ears 12 are connected to a limit rope.

[0028] When adjusting the airbag 4 to deflate, the connecting ears 12 are released, allowing the adjusting airbag 4 to move along the positioning rod 3. When the adjusting airbag 4 is fully inflated, the two connecting ears 12 are in a fully inflated state and can grip the positioning rod 3 tightly.

[0029] like Figure 1 As shown, an indicator light is provided at the upper end of the positioning rod 3.

[0030] The indicator lights make it easy for staff to determine the position of the positioning rod 3 and facilitate the overall monitoring of the device.

[0031] In actual use, the suction pump 2 is set on the shore, and the inlet of the suction pump 2 is connected to the connecting hose 1.

[0032] Multiple positioning rods 3 are spaced apart in the water, and the positioning rods 3 are used to connect and limit the regulating airbag 4 and the connecting hose 1;

[0033] When sampling and monitoring are required, the position of the adjustment airbag 4 at the monitoring position is lowered. The air pump 5 is operated to vent the airbag 4. Under the action of gravity, the adjustment airbag 4 pulls the connecting hose 1 down along the positioning rod 3.

[0034] When the regulating airbag 4 sinks to the appropriate depth, the regulating airbag 4 stops deflating, the air pump 5 reverses and quickly inflates the regulating airbag 4, the connecting ear 12 is in a full state, and it holds the positioning rod 3, so that the regulating airbag 4 and the connecting hose 1 float at that depth.

[0035] The first solenoid valve 8 of the sampling tube 6 is opened, while the other first solenoid valves 8 remain closed. At the same time, the second solenoid valve 9 on the side of the sampling tube 6 away from the suction pump 2 is opened, and the second solenoid valve 9 on the side of the sampling tube 6 closer to the suction pump 2 is opened, so that the connecting hose 1 between the sampling tube 6 and the suction pump 2 is in a flowable state.

[0036] The sample can be drawn by suction pump 2;

[0037] After sampling is completed, the air pump 5 is turned on, causing the regulating airbag 4 to be slightly vented until the connecting ear 12 is released and the positioning rod 3 is loosened, allowing the regulating airbag 4 to float to the water surface.

[0038] During the process of locking the position of the regulating airbag 4, there will be a certain time delay in the inflation process of the regulating airbag 4, and the position of the regulating airbag 4 will rise slightly. In order to ensure the accuracy of the position of the regulating airbag 4, the regulating airbag 4 can be lowered slightly below the position to be monitored when it descends. The specific operating distance can be adjusted according to the actual use.

[0039] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the product form and style of the above-described specific embodiments. Any online automatic water quality monitoring device that conforms to the claims of this utility model, and any appropriate changes or modifications made to it by those skilled in the art, shall fall within the patent protection scope of this utility model.

Claims

1. An online automatic water quality monitoring device, characterized in that: It includes a positioning part and a connecting hose (1). The connecting hose (1) is equipped with a plurality of sampling parts, each sampling part being equipped with a buoyancy part, the buoyancy part being used to increase the height of the sampling part; The positioning part is equipped with a suction pump (2), and the connecting hose (1) is connected to the suction pump (2). The snorkeling part includes a positioning rod (3) and an adjusting airbag (4). The adjusting airbag (4) is connected to the connecting hose (1). The adjusting airbag (4) is equipped with an air pump (5). When the air pump (5) is running, it changes the buoyancy of the adjusting airbag (4) so ​​that the adjusting airbag (4) moves along the positioning rod (3).

2. The online automatic water quality monitoring device according to claim 1, characterized in that: The sampling unit includes a sampling tube (6) and a filter head (7). The sampling tube (6) is connected to the connecting hose (1). The sampling tube (6) is equipped with a first solenoid valve (8). The connecting hose (1) is equipped with a plurality of second solenoid valves (9). The second solenoid valves (9) are located on the side of the sampling unit away from the positioning part.

3. The online automatic water quality monitoring device according to claim 1, characterized in that: The positioning rod (3) is vertically inserted into the bottom of the water. The regulating airbag (4) is equipped with a connecting frame. The connecting frame is connected to the connecting hose (1). The connecting frame is equipped with a limiting ring (10). The limiting ring (10) is sleeved on the outside of the positioning rod (3). The air pump (5) is fixedly connected to the connecting frame. The connecting section of the air pump (5) is equipped with a vent pipe (11). The vent pipe (11) is set vertically upward and the length of the vent pipe (11) is greater than the water depth to be detected.

4. The online automatic water quality monitoring device according to claim 1, characterized in that: The regulating airbag (4) is connected to two connecting ears (12). The positioning rod (3) is located between the two connecting ears (12). When the regulating airbag (4) is inflated, the two connecting ears (12) expand and clamp the positioning rod (3). The outer ends of the two connecting ears (12) are connected to a limit rope.