Water quality monitoring device

Abstract

The invention discloses a water quality monitoring device, and relates to the technical field of water quality monitoring, the water quality monitoring device comprises a container, at least one sensor is arranged in the container, the container comprises a first cylinder and a second cylinder, one cylinder is provided with a spiral first communication port, the other cylinder is provided with a linear second communication port, and the first communication port is communicated with the second communication port. A communicating part is formed at the overlapped part of the communicating port I and the communicating port II, and the cylinder I or the cylinder II can rotate. According to the water quality monitoring device disclosed by the invention, the cylinder with the linear communication port and the cylinder with the spiral communication port are laminated and sleeved for use, so that the communication ports between the two cylinders form a single overlapped communication part, and one cylinder and the other cylinder generate relative rotation; after rotation, the overlapped communication part on the cylinder is changed, so that the liquid inlet part on the container is changed, and on the basis, the water quality condition of each depth based on the length of the cylinder can be collected under the condition that the monitoring device is not moved.

Description

Technical Field

[0001] This invention relates to the field of water quality monitoring technology, specifically to a water quality monitoring device. Background Technology

[0002] Still water bodies form stable thermal stratification due to solar radiation heating and density differences, typically consisting of three layers. In deep water bodies, such as the ocean, there are even denser stratifications of three or more layers. Scientific-grade water profile monitoring can reach more than ten layers. For example, parameters such as dissolved oxygen (DO), hydrogen sulfide (H2S), pH, and chlorophyll often undergo orders of magnitude abrupt changes within thin layers ranging from a few centimeters to tens of centimeters.

[0003] In view of the above, the layering capability of the monitoring device is necessarily related to the monitoring data results. In the prior art: Pre-buried fixed-point monitoring has a single depth, making it difficult to analyze water conditions such as interlayers and thin-layer algal blooms. In addition, the more monitoring points are required to achieve multi-depth monitoring, the more monitoring points need to be set up. While mobile monitoring offers flexibility, each move disturbs the water body, affecting monitoring results to some extent. Additionally, obtaining depth references for deployment is difficult.

[0004] To address the aforementioned issues, we propose a water quality monitoring device. Summary of the Invention

[0005] [Technical problems solved] To address the shortcomings of existing technologies, this invention provides a water quality monitoring device with advantages such as excellent depth continuity and undisturbed depth adjustment, which can effectively solve the problems in the background technology.

[0006] [Technical Solution] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a water quality monitoring device, comprising a container, wherein at least one sensor is disposed inside the container, the container comprising a first cylinder and a second cylinder, one cylinder being located inside the other cylinder, and the outer wall of the inner cylinder being in contact with the inner wall of the outer cylinder, a spiral-shaped connecting port one being provided on one cylinder, and a straight connecting port two being provided on the other cylinder, the overlapping portions of the connecting ports one and two forming a connecting part, the first cylinder or the second cylinder being rotatable, and a sealing member being disposed inside the inner cylinder, the sealing member being fitted with the structure of the connecting port on the inner cylinder.

[0007] Preferably, the presence of at least one sensor inside the container refers to a combination of one or more of the following: physical parameter sensors such as turbidity sensors and conductivity sensors, and chemical parameter sensors such as pH sensors and ammonia nitrogen sensors. This is an optional arrangement made by those skilled in the art for actual implementation, and therefore will not be described in detail here, nor is it intended to further limit the technical features of the present invention.

[0008] Preferably, the outer wall of the inner cylinder and the inner wall of the outer cylinder are fitted together seamlessly. The inner and outer walls of the cylinders are smoothed to prevent external water from entering the gap. Alternatively, there may be a small gap between the cylinders, with a sealing or dynamic sealing treatment at the joints, such as the ends of the cylinders, to prevent external water from entering the container through the joint and affecting subsequent water quality monitoring results. This is an optional arrangement for practical implementation by those skilled in the art, and therefore will not be elaborated upon here, nor will it be considered a further limitation on the technical features of this invention.

[0009] Preferably, the rotatability of cylinder one or cylinder two means that the cylinder is controlled to rotate by an external rotating drive such as a motor or a motor + reducer. This is an optional configuration made by those skilled in the art for actual implementation, and therefore will not be described in detail here, nor will it be regarded as a further limitation on the technical features of the present invention.

[0010] Preferably, a pump, such as a water pump or a water pump plus a solenoid valve, is provided at the bottom of the container, and a pipe is connected to the pump to discharge the water inside the container to the outside of the container.

[0011] Preferably, the spiral connection has fewer than one spiral turn. Thus, when the straight connection and the spiral connection overlap, because the number of spiral turns is less than one, there is only one overlapping connection at the same time, instead of at least two overlapping connections due to the number of turns being greater than one, which would prevent two liquid inlets from appearing on the container at the same time.

[0012] Preferably, the cylinder with the straight-line connecting port is located inside the cylinder with the spiral connecting port. The sealing member is radially movable inside the cylinder with the straight-line connecting port. Compared to the cylinder with the spiral connecting port being located inside, the straight-line shape is more regular than the spiral shape. Sealing from the inside of the cylinder is easier for the straight-line connecting port than for the spiral connecting port.

[0013] Preferably, the radial mobility of the sealing member within the cylinder with the linear communication opening refers to the sealing member being moved and controlled by an external telescopic drive such as an electric push rod, cylinder, or hydraulic cylinder, or by an electric slide rail. This is an optional arrangement made by those skilled in the art for actual implementation, and therefore will not be elaborated upon here, nor will it be considered as a further limitation on the technical features of the present invention.

[0014] Preferably, two side plates are provided inside the cylinder with a straight connecting port, and at least one sensor is provided on one side plate. The monitoring end of the sensor is located on the side of this side plate facing the other side plate. The two side plates are distributed on the left and right sides of the connecting port inside the cylinder, and both side plates are in contact with the inner wall of the cylinder. The structure of the sealing member fits the gap between the two side plates.

[0015] Preferably, the two side plates can be fixed inside the corresponding cylinder, or installed inside the corresponding cylinder by means of an external rotating drive such as a motor or a motor + reducer.

[0016] Preferably, at least two straight-line connecting ports are provided on the corresponding cylinder, and two side plates and one sealing member are provided in the cylinder in a group corresponding to the at least two straight-line connecting ports, with the number of side plates equal to the number of straight-line connecting ports. In this structure, when at least two straight-line connecting ports are provided on the corresponding cylinder, it means that when the sensor on one sealing member enters the non-monitoring state, the sensor on the other sealing member can perform uninterrupted monitoring. The two sets of sensors can take turns monitoring, or they can simultaneously monitor the water quality at different depths.

[0017] Preferably, when two sets of side plates are provided inside the second cylinder, the two sets of side plates are fixed to each other.

[0018] Preferably, when the sealing element and the second connecting port are not engaged, since the side plate is in contact with the inner wall of the corresponding cylinder, in this state, by rotating the side plate inside the cylinder, the side plate can scrape off the thin layer such as algae that adheres to the inner wall of the second cylinder.

[0019] Preferably, in this embodiment, in order to simultaneously control the movement of the sealing member and the rotation of the side plate, a force-bearing part is provided on the sealing member, and a guide frame is provided in cooperation with the force-bearing part. The guide frame is externally connected to a telescopic drive member and is rotatably connected to the telescopic drive member but cannot move relative to it. At the same time, the guide frame can slide relative to a base frame. A gear is fixed externally to this base frame, and another gear fixedly connected to a motor is axially movable and meshes with this gear. With this structure, the space is more compact, and the rotation control and movement control are compatible with each other.

[0020] Preferably, a monitoring groove is provided on the side plate attached to the sensor, with the monitoring groove facing downwards. With this structure, whether the sensor is being sprayed or used in normal monitoring, the downward-facing monitoring groove helps the water to drain away as soon as the external water is removed, so as to prevent excessive adhesion to the sensor.

[0021] Preferably, the sealing member has an inlet and an outlet, which are connected and the inlet is connected to an external liquid supply device. When the sealing member moves to a position where the sensor is not connected to the external environment based on the monitoring tank, the outlet faces the sensor. A flow channel is provided on the sealing member at the position corresponding to the outlet.

[0022] Preferably, the liquid inlet is located at any part of the sealing member that does not affect the normal operation of the monitoring device, and can be connected to an external liquid supply device via a hose. The liquid supply device refers to any liquid supply device that is well known and understood by those skilled in the art, such as a water pump or a water tank + water pump. This is an optional setup for actual implementation by those skilled in the art, and therefore will not be described in detail here, nor will it be considered as a further limitation on the technical features of the present invention.

[0023] Preferably, the liquid outlet can be a liquid hole or a high-pressure nozzle embedded in the sealing component.

[0024] Preferably, the flow channel is a movable channel, and a liquid guiding component is rotatably connected within the movable channel. The liquid guiding component can also be attached to the opposite side plate. When the sealing component moves, it drives the liquid guiding component to rotate, thereby changing the orientation of the liquid guiding component.

[0025] Preferably, the liquid guiding component can be rotatably connected to the sealing component via a bearing.

[0026] Preferably, a second force-bearing part is provided on the liquid guiding component, and a guide groove that matches the structure of the second force-bearing part is provided on the side plate on the opposite side of the liquid guiding component.

[0027] Preferably, in this embodiment, those skilled in the art will understand that the specific shape of the guide groove can be tailored to the actual implementation.

[0028] Preferably, the second force-bearing part is fixedly connected to the liquid guiding component.

[0029] [Beneficial Effects] Compared with the prior art, the present invention provides a water quality monitoring device with the following advantages: This water quality monitoring device uses a cylinder with a straight connecting port and a cylinder with a spiral connecting port to be fitted together and stacked, so that the connecting ports between the two cylinders form a single overlapping connecting part. By rotating one cylinder relative to the other, the overlapping connecting part on them changes after the rotation, thereby changing the liquid inlet on the container. Based on this, the water quality at each depth based on the length of the cylinder can be collected without moving the monitoring device. Compared to fixed-point or mobile monitoring devices, the sampling depth can be flexibly varied and has good depth continuity. Furthermore, the device does not need to be moved, resulting in less interference with the water source during monitoring and indirectly ensuring the accuracy of the monitoring data. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a water quality monitoring device according to the present invention.

[0031] Figure 2 This is a schematic diagram of the container in a water quality monitoring device according to the present invention.

[0032] Figure 3 This is a schematic diagram of the structure of the connecting port in a water quality monitoring device according to the present invention.

[0033] Figure 4 This is an exploded view of the container structure in a water quality monitoring device of the present invention.

[0034] Figure 5 This is a schematic diagram of the structure of a sealing component in a water quality monitoring device according to a preferred embodiment of the present invention. Figure 1 .

[0035] Figure 6 This is a schematic diagram illustrating the installation of a sensor in a preferred embodiment of a water quality monitoring device according to the present invention.

[0036] Figure 7 This is a schematic diagram of the structure of a sealing component in a water quality monitoring device according to a preferred embodiment of the present invention. Figure 2 .

[0037] Figure 8 This is a schematic diagram of the side plate in a preferred embodiment of a water quality monitoring device according to the present invention.

[0038] Figure 9 This is a schematic diagram of a partial structural state of the sealing component and the side plate in the assembled state of a water quality monitoring device according to the present invention.

[0039] Figure 10 This is a schematic diagram showing the structural state transformation of the liquid guiding component in a water quality monitoring device according to the present invention.

[0040] In the picture: 1. Containers; 2. Piping fittings; 3. Pumps; 4. Sensors; 11. Cylinder 1; 12. Cylinder 2; 13. Sealing component; 111. Connecting port one; 121. Connecting port two; 131. Load-bearing part 1; 132. Guide frame; 133. Side plate; 134. Liquid outlet; 135. Liquid guiding component; 1311. Liquid inlet section; 1331. Monitoring tank; 1332. Guide tank; 1351. Movable groove; 1352. Force-bearing part two. Detailed Implementation

[0041] To make the technical means, creative features, achieved objectives, and functional effects of this invention readily understandable, the invention will be further described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0042] Example 1 To address the shortcomings of existing technologies, such as Figures 1-4 As shown, the present invention provides a water quality monitoring device, including a container 1, with at least one sensor 4 disposed inside the container 1. The container 1 includes a first cylinder 11 and a second cylinder 12, with one cylinder located inside the other cylinder, and the outer wall of the inner cylinder fitting against the inner wall of the outer cylinder. A spiral-shaped connecting port 111 is provided on one cylinder, and a straight connecting port 121 is provided on the other cylinder. The overlapping parts of the connecting ports 111 and 121 constitute a connecting part. The first cylinder 11 or the second cylinder 12 is rotatable. A sealing member 13 is disposed inside the inner cylinder, and the sealing member 13 is structurally compatible with the connecting port on the inner cylinder.

[0043] The provision of at least one sensor 4 inside container 1 refers to a combination of one or more physical parameter sensors such as turbidity sensors and conductivity sensors, and chemical parameter sensors such as pH sensors and ammonia nitrogen sensors. This is an optional arrangement made by those skilled in the art for actual implementation, and therefore will not be described in detail here, nor is it intended to further limit the technical features of the present invention. The outer wall of the inner cylinder and the inner wall of the outer cylinder can be seamlessly fitted. The inner and outer walls of the cylinder are smoothed to prevent external water from entering the gap. Alternatively, there may be a small gap between the cylinders, and the joints between them, such as the ends of the cylinders, are sealed or dynamically sealed to prevent external water from entering the interior of container 1 through the joints between the cylinders and thus affecting the subsequent water quality monitoring results. This is an optional arrangement made by those skilled in the art for actual implementation, and therefore will not be described in detail here, nor is it intended to further limit the technical features of this invention. The rotatability of cylinder 11 or cylinder 2 12 means that the cylinder is controlled to rotate by an external rotating drive such as a motor or a motor + reducer. This is an optional configuration for actual implementation by those skilled in the art, and therefore will not be described in detail here, nor is it intended to further limit the technical features of this invention.

[0044] It should be noted that if water quality monitoring is required in a certain area, the water quality monitoring device can be placed in the area, or it can be installed in a fixed or floating manner in the area. In this embodiment, this is an optional setup for those skilled in the art based on the actual implementation situation. Therefore, the installation method of the water quality monitoring device will not be described in detail, nor will it be considered as a further limitation on the technical features of this invention. In this embodiment, the example is taken as follows: the cylinder 11 with a spiral-shaped communication port 111 is located on the outside, and the cylinder 12 with a straight communication port 121 is located on the inside. During the preliminary preparation process for water quality monitoring, the connecting port 121 on the second cylinder 12 should be closed based on the sealing component 13, preventing water from outside the container 1 from entering its interior. In this state, the water inlet on the container 1 should be adjusted according to the monitored depth of the water source. By rotating either cylinder 11 or cylinder 12, relative rotation is achieved. Since the connecting port 111 on cylinder 11 is spiral-shaped, and the connecting port 121 on cylinder 12 is straight-shaped, during the relative rotation of cylinder 11 and cylinder 12, only one overlapping connection exists between connecting ports 111 and 121 at any given time. Figure 3 The position of the overlapping connecting part on the structure shown can be changed by rotating cylinder 11 or cylinder 2 to different angles; Once the overlapping connecting parts on cylinder 11 and cylinder 212 are at the monitored depth of the water source, the connecting port 2121 on cylinder 212 can be opened based on the sealing part 13. In this state, the water to be monitored enters the interior of container 1 through the overlapping connecting parts of connecting port 111 on cylinder 11 and connecting port 2121 on cylinder 212, and the water quality is monitored by the sensor 4 installed inside container 1. After the monitoring work at the current depth is completed, if it is necessary to monitor the water quality at other depths, first make the connecting port 121 on the second cylinder 12 closed based on the sealing part 13. In this state, adjust the position of the overlapping connecting part, and then drain the water inside the container 1. If necessary, after draining the water inside the container 1, fill the container 1 with clean water (deionized water or distilled water, etc.) for rinsing, and then drain it again. This operation method can avoid the possibility that some residue of the previous batch of monitored water may affect the monitoring results of the next batch of water. After this, once the position of the overlapping connecting part is adjusted to a suitable level, the connecting port 121 on pipe fitting 2 can be opened based on the sealing part 13 to perform water inlet monitoring operations.

[0045] It is worth mentioning that by using a cylinder with a straight connecting port and a cylinder with a spiral connecting port to fit together and stack them, the connecting ports between the two cylinders form a single overlapping connecting part. Furthermore, by rotating one cylinder relative to the other, the overlapping connecting part on them changes after the rotation, thereby changing the liquid inlet on container 1. Based on this, it is possible to collect water quality information at various depths based on the length of the cylinder without moving the monitoring device. Compared to fixed-point or mobile monitoring devices, the sampling depth can be flexibly varied and has good depth continuity. Furthermore, the device does not need to be moved, resulting in less interference with the water source during monitoring and indirectly ensuring the accuracy of the monitoring data.

[0046] In this embodiment, the sampling depth is mainly determined by the height of the spiral connector and the length of the straight connector. Those skilled in the art will understand that the width of the connector can be adjusted. For example, when the width of the connector is narrower, the connector in the overlapping state is smaller, which means that the overlapping connector is smaller in the vertical profile of the water source. As an ideal operating state, the position adjustment of the overlapping connector can be at the centimeter level or even the millimeter level. Similarly, based on the length of the cylinder, the spiral connecting port and the straight connecting port cooperate with each other. The rotation angle of the cylinder with the spiral connecting port and the axial displacement of the overlapping connecting part on it form a mapping relationship. For example, by using a precision stepper motor or servo motor control, the rotation can be decomposed into small angle steps, thereby achieving high-resolution depth switching in the axial direction (such as one sampling point every 0.5 cm).

[0047] As a preferred embodiment, such as Figure 1 As shown, a water quality monitoring device includes a pipe 2 and a pump 3. The pump 3, such as a water pump or a water pump + solenoid valve, is installed at the bottom of the container 1, and the pipe 2 is connected to the pump 3 to discharge the water inside the container 1 to the outside of the container 1.

[0048] As a preferred embodiment, such as Figure 2 As shown, a water quality monitoring device has a spiral connection port with fewer than one spiral turn. Therefore, when the straight connection port and the spiral connection port overlap, because the number of spiral turns is less than one, there is only one overlapping connection at the same time, instead of at least two overlapping connection ports due to the number of turns being greater than one, so that there are two liquid inlets on container 1 at the same time.

[0049] As a preferred embodiment, such as Figures 1-4 As shown, a water quality monitoring device has a cylinder with a straight connecting port located inside a cylinder with a spiral connecting port. The sealing member 13 is located inside the cylinder with the straight connecting port and is radially movable based on the cylinder. Compared to the cylinder with the spiral connecting port being located inside, the straight shape is more regular than the spiral shape. The sealing operation is easier for the straight connecting port than for the spiral connecting port because the sealing operation is performed from the inside of the cylinder located inside. The sealing member 13 is radially movable within the cylinder with a straight connecting opening. This means that the sealing member 13 is moved and controlled by an external telescopic drive such as an electric push rod, a cylinder or a hydraulic cylinder, or by an electric slide rail. This is an optional arrangement made by those skilled in the art for actual implementation, and therefore will not be described in detail here, nor is it intended to further limit the technical features of the present invention.

[0050]

Example 2

[0051] The two side plates 133 can be fixed inside the corresponding cylinder, or they can be installed inside the corresponding cylinder by means of external rotating drive components such as motors or motors + reducers.

[0052] It should be noted that the present invention is a water quality monitoring device. In this embodiment, the side plate 133 extends inward from the part of the second communication port 121 on the second cylinder 12 and is attached to both sides of the sealing member 13. When the sealing member 13 is disengaged from the second communication port 121 on the second cylinder 12 and is not disengaged from the side plate 133 (i.e., the structural state after the sealing member 13 moves from the second communication port 121 toward the inside of the pipe 2), the sealing member 13 and the two side plates 133 form a cavity, so that the water to be monitored located outside the container 1 can enter this cavity through the overlapping communication part but cannot enter the interior of the container 1. Meanwhile, because the sensor 4 is located on the side plate 133 and extends to its inner side, the water being monitored can be monitored without a large amount of water entering the interior of the container 1, but only within the cavity formed by the sealing member 13 and the two side plates 133. After the monitoring is completed, the sealing component 13 can be moved in the reverse direction (i.e., the sealing component 13 moves toward the second connection port 121). Because the sealing component 13 is in contact with the side plate 133, the water in the cavity formed by the sealing component 13 and the two side plates 133 is pushed out during the movement of the sealing component 13, similar to the operation of a piston. The water in the cavity formed by the sealing component 13 and the two side plates 133 is pushed out, and the next batch of monitoring can be carried out without additional rinsing work in the container 1.

[0053] In a preferred embodiment, the sealing element 13 and the side plate 133 are provided in two sets. At least two straight-shaped communication ports are opened on the corresponding cylinder. In the cylinder, two side plates 133 and one sealing element 13 are arranged in groups with the same number of straight-shaped communication ports as the number of these at least two straight-shaped communication ports. In this structure, when at least two straight-shaped communication ports are opened on the corresponding cylinder, it means that when the sensor 4 on one sealing element 13 enters the non-monitoring state, the sensor 4 on the other sealing element 13 can perform uninterrupted monitoring. The two sets of sensors 4 can take turns monitoring, or they can simultaneously monitor the water quality at different depths. When two sets of side plates 133 are provided inside the second cylinder 12, the two sets of side plates 133 are fixed to each other; When the sealing member 13 and the connecting port 121 are not engaged, the side plate 133 is in contact with the inner wall of the corresponding cylinder. In this state, by rotating the side plate 133 inside the cylinder, the side plate 133 can scrape off the thin layer such as algae that adheres to the inner wall of the cylinder 12.

[0054] As a preferred embodiment, such as Figure 5As shown, in this embodiment, in order to simultaneously control the movement of the sealing member 13 and the rotation of the side plate 133, a force-bearing part 131 is provided on the sealing member 13, and a guide frame 132 is provided in cooperation with this force-bearing part 131. The guide frame 132 is externally connected to a telescopic drive member and is rotatably connected to the telescopic drive member but cannot move relative to it. At the same time, the guide frame 132 can slide relative to a base frame. A gear is fixed on the outside of this base frame, and another gear fixedly connected to the motor can move axially and mesh with this gear. With this structure, the space is more compact, and the rotation control and movement control are compatible with each other.

[0055]

Example 3

[0056] The liquid inlet is located at any part of the sealing member 13 that does not affect the normal operation of the monitoring device, and can be connected to an external liquid supply device through a hose. The liquid supply device refers to any liquid supply device that is well known and understood by those skilled in the art, such as a water pump or a water tank + water pump. This is an optional setup for actual implementation by those skilled in the art, so it will not be described in detail here, nor will it be considered as a further limitation on the technical features of the present invention. The liquid outlet 134 can be a liquid hole or a high-pressure nozzle embedded in the sealing member 13.

[0057] It should be noted that this invention is a water quality monitoring device. After the monitoring of the current batch of water quality is completed, in the above embodiment two, the sealing member 13 needs to be moved to engage with the communication port 121 on the cylinder 12 to prepare for the monitoring of the next batch. In this state, as follows... Figure 9In the structural state shown, the liquid outlet 134 is directly facing the sensor 4. At this time, the external liquid supply device can be turned on, and clean water can be supplied to the sensor 4 through the liquid outlet 134 for spraying. During the process of spraying and washing sensor 4, the water after spraying and washing is guided by the flow channel on the monitoring tank 1331 and the sealing component 13 to the interior of the second cylinder 12.

[0058] As a preferred embodiment, such as Figure 8 As shown, the monitoring tank 1331 faces downwards at an angle. With this structure, whether the sensor 4 is being sprayed or used in normal monitoring, when the external water is removed, the downward-facing monitoring tank 1331 helps the water to drain out immediately, so as to prevent excessive adhesion to the sensor 4.

[0059]

Example 4

[0060] The liquid guiding component 135 can be rotatably connected to the sealing component 13 via a bearing; In this embodiment, those skilled in the art will understand that the specific shape of the guide groove 1332 can be tailored to the actual implementation situation; The second force-bearing part 1352 is fixedly connected to the liquid guiding part 135.

[0061] It should be noted that this invention is a water quality monitoring device. To improve the monitoring accuracy of sensor 4, sensor 4 should be calibrated before each water quality monitoring. If calibration of sensor 4 is required: By moving the sealing member 13, the liquid guiding member 135 is rotatably connected to the sealing member 13, and the force-bearing part 1352 is constrained by the guide groove 1332 to move. During the movement of the sealing member 13, the liquid guiding member 135 will rotate relative to the sealing member 13, and the liquid guiding member 135 will change from its original downward-facing structural state to an upward-facing structural state, such as... Figure 10As shown; When the liquid guide 135 faces upward, and the side plate 133 is attached to the side of the sealing member 13, the liquid guide 135 forms a liquid storage part based on the side plate 133, and the sensor 4 is connected to this liquid storage part based on the monitoring tank 1331. At this time, the external liquid supply device can be opened, and standard calibration solutions such as saturated air water or zero oxygen liquid for calibration can be supplied to this liquid storage part through the liquid outlet 134 for calibration.

[0062] It is worth mentioning that, since the guiding of the liquid guide 135 is constrained by the cooperation between the guide groove 1332 and the force-bearing part 1352, and in the movement path of the sealing part 13, the liquid guide 135 has at least two structural states, including upward or downward, throughout the entire operating cycle of the monitoring device. When the liquid guide 135 is facing downwards, the sealing member 13 is engaged with the second communication port 121. In this state, external water cannot enter, which is the non-monitoring state. At the same time, in the above embodiment, this state is the spray washing state for the sensor 4. The water after spray washing can be quickly guided out through the downward-facing liquid guide 135. When the liquid guiding component 135 changes from a downward position to an upward position, that is, during the process of the sealing component 13 moving away from the connecting port 121, in this state, as... Figure 10 As shown, at this time, sensor 4 is not exposed to the external water being monitored. In this embodiment, this state of the liquid guide 135 is used for liquid storage calibration, and this state also serves as the preparatory state for sensor 4 before it is used for monitoring. The monitoring continues until the sealing component 13 is completely moved to the point where the sensor 4 comes into contact with the external water being monitored. With the above operating rules, the state changes of the liquid guiding component 135 are integrated into the movement and operation of the sealing component 13. The transition from the sprayed state to the calibration state and then to the monitoring state makes the entire state transition of the sensor 4 more natural. Under the premise of ensuring that the sensor 4 has high monitoring accuracy, the continuous operation and maintenance of the sensor 4 can be achieved without complex structures such as external operation intervention.

[0063] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A water quality monitoring device, comprising a container (1), wherein at least one sensor (4) is disposed inside the container (1), characterized in that: The container (1) includes a first cylinder (11) and a second cylinder (12). One cylinder is located inside the other cylinder, and the outer wall of the inner cylinder is in contact with the inner wall of the outer cylinder. A spiral-shaped connecting port (111) is opened on one cylinder, and a straight connecting port (121) is opened on the other cylinder. The overlapping part of the connecting port (111) and the connecting port (121) constitutes a connecting part. The first cylinder (11) or the second cylinder (12) is rotatable. A sealing member (13) is provided inside the inner cylinder. The sealing member (13) matches the structure of the connecting port opened on the inner cylinder.

2. The water quality monitoring device according to claim 1, characterized in that: The spiral connection has fewer than one spiral turn.

3. The water quality monitoring device according to claim 1, characterized in that: The cylinder with a straight connecting port is located inside the cylinder with a spiral connecting port, and the sealing member (13) is radially movable inside the cylinder with the straight connecting port.

4. A water quality monitoring device according to claim 3, characterized in that: Inside the cylinder with a straight connecting port, there are two side plates (133), and at least one sensor (4) is disposed on one side plate (133). The monitoring end of the sensor (4) is located on the side of this side plate (133) facing the other side plate (133). The two side plates (133) are distributed on the left and right sides of the connecting port inside the cylinder, and both side plates (133) are in contact with the inner wall of the cylinder. The structure of the sealing member (13) fits the gap between the two side plates (133).

5. A water quality monitoring device according to claim 4, characterized in that: At least two straight-line communication ports are provided on the corresponding cylinder, and two side plates (133) and a sealing member (13) are provided in the cylinder in a group corresponding to the at least two straight-line communication ports, with the number of side plates (133) equal to the number of straight-line communication ports.

6. A water quality monitoring device according to claim 4, characterized in that: A monitoring slot (1331) is provided on the side plate (133) to which the sensor (4) is attached, and the monitoring slot (1331) faces downwards.

7. A water quality monitoring device according to claim 6, characterized in that: The sealing member (13) is provided with an inlet and an outlet (134), which are connected to each other. The inlet is connected to an external liquid supply device. When the sealing member (13) moves to the point where the sensor (4) is not connected to the external environment based on the monitoring tank (1331), the outlet (134) faces the sensor (4). A flow channel is provided on the sealing member (13) at the position corresponding to the outlet (134).

8. A water quality monitoring device according to claim 7, characterized in that: The flow channel is a movable channel (1351), and a liquid guide (135) is rotatably connected in the movable channel (1351). The liquid guide (135) can also fit against the opposite side plate (133). When the sealing member (13) moves, it drives the liquid guide (135) to rotate, which is used to change the orientation of the liquid guide (135).

9. A water quality monitoring device according to claim 8, characterized in that: A second force-bearing part (1352) is provided on the liquid guide (135), and a guide groove (1332) that matches the structure of the second force-bearing part (1352) is provided on the side plate (133) on the opposite side of the liquid guide (135).

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