Water body monitoring device

Abstract

The utility model relates to water body detection technical field discloses a kind of water body monitoring devices, including floatable setting in water body, float includes expansion piece and constraint layer, constraint layer covers and is set to the outer peripheral surface of expansion piece, constraint layer is suitable for when expansion piece meets water expansion to its expansion direction and carries out elastic constraint, so that expansion piece is expanded along predetermined direction to drive float to form stable floating posture;Detection component is connected with float, and detection component is suitable for detecting water environmental parameter.The water body monitoring device provided by the utility model can be directly deployed in any position of water body without relying on fixed support or base, breaking the use scene limit and expanding the monitoring range.The expansion piece of float can expand when meeting water, and the constraint layer can make the expansion piece expand along the predetermined direction to form a stable floating posture, ensuring the stable operation of the detection component and improving the accuracy and reliability of the monitoring data.

Description

Technical Field

[0001] This utility model relates to the field of water body detection technology, and specifically to a water body monitoring device. Background Technology

[0002] Water monitoring devices are instrument systems used to monitor the physical, chemical, and biological characteristics of various water bodies, such as rivers, lakes, oceans, groundwater, reservoirs, drinking water sources, industrial wastewater, and domestic sewage, in real time or periodically. Their core function is to obtain timely and accurate water quality parameter data, providing a scientific basis for water environment management, pollution prevention and control, water resource protection, and related decision-making.

[0003] Currently, water environment monitoring largely relies on fixed sensing devices. These devices need to be pre-installed on specific brackets or fixed bases, severely limiting their application scenarios, especially in the center of water bodies or emergency situations. When used in the center of a water body, such as in the middle of a river, large brackets or external tools such as unmanned boats are required for fixation. For sudden emergency detection scenarios, the limited deployment time and fixed location of the equipment make it impossible to quickly track pollution fronts and reconstruct diffusion paths, greatly restricting the timeliness of environmental risk early warning. Utility Model Content

[0004] In view of this, the present invention provides a water body monitoring device to solve the problems of limited application scenarios, reliance on external fixing tools, and slow emergency response of existing fixed water body monitoring devices.

[0005] This utility model provides a water body monitoring device, comprising: A floating component, which can be floated in a body of water, includes an expansion component and a constraint layer. The constraint layer covers the outer peripheral surface of the expansion component and is adapted to elastically constrain the expansion direction of the expansion component when it expands in water, so that the expansion component expands in a predetermined direction to drive the floating component to form a stable floating posture. A detection component, connected to the floating component, is adapted to detect aquatic environmental parameters.

[0006] Optionally, the floating component further includes: A protective layer is provided on the outer peripheral surface of the constraint layer, the protective layer being adapted to dissolve in water to expose the constraint layer and the expansion member in the water body.

[0007] Optionally, the material of the protective layer includes water-soluble polyvinyl alcohol; And / or, the constraint layer is a carbon fiber woven mesh constraint layer, and the mesh diameter of the carbon fiber woven mesh constraint layer is within 1 mm; And / or, the expansion member is a rubber expansion member.

[0008] Optionally, the floating component is connected to the detection assembly via a fixing component.

[0009] Optionally, the outer wall of the detection component is provided with a lifting structure, which is adapted to be hooked by an external tool to adjust the position of the detection component in the water.

[0010] Optionally, the detection component includes: A housing, wherein the housing is provided with a light-transmitting window, the light-transmitting window being adapted to close the housing to prevent the water sample to be tested from entering the housing; A light source assembly, disposed within the housing, is used to provide a light beam; A photodetector is disposed within the housing; The light beam provided by the light source assembly is incident on the photodetector through the light-transmitting window and the water sample to be tested.

[0011] Optionally, the light-transmitting window includes a first light-transmitting window and a second light-transmitting window; A detection area is formed on the outside of the housing, which is used to accommodate the water sample to be tested. The first light-transmitting window and the second light-transmitting window are respectively provided on the two opposite side walls of the detection area. The light beam provided by the light source assembly passes through the first light-transmitting window, the water sample to be tested and the second light-transmitting window in sequence before being incident on the photodetector.

[0012] Optionally, the photodetector is disposed on the same side as the light source assembly; The detection component further includes a reflector and a telescopic component. The reflector is connected to the housing via the telescopic component. The reflector has a reflective surface, which faces the photodetector. A test area is formed between the reflective surface and the photodetector. The test area is used to contain the water sample to be tested. The light beam provided by the light source component passes through the light-transmitting window and the water sample to be tested in sequence to reach the reflective surface and form a reflected light beam. The reflected light beam passes through the water sample to be tested and the light-transmitting window in sequence and is then incident on the photodetector.

[0013] Optionally, the telescopic component includes: The first connector is fixedly mounted on the housing; The second connector is movably disposed on the first connector, and the reflector is disposed on the second connector. The distance between the reflector and the light-transmitting window can be adjusted by moving the second connector. An adjusting fastener is adjustablely mounted on the second connecting member, and the adjusting fastener is adapted to fix the relative positions of the first connecting member and the second connecting member.

[0014] Optionally, the light source assembly includes multiple light source bodies arranged in a ring, and the photodetector is disposed in the central region of the multiple light source bodies arranged in a ring.

[0015] Beneficial effects This utility model provides a water monitoring device, including a floating component that can float in a water body. The floating component includes an expansion component and a constraint layer. The constraint layer covers the outer peripheral surface of the expansion component and is adapted to elastically constrain the expansion direction of the expansion component when it expands in water, so that the expansion component expands in a predetermined direction to drive the floating component to form a stable floating posture. A detection component is connected to the floating component and is adapted to detect water environmental parameters.

[0016] The water monitoring device provided by this utility model, with the help of a floating component, can be directly deployed at any location in the water body without relying on a fixed support or base, breaking through the limitations of the application scenario and expanding the monitoring range; it can be quickly deployed in sudden emergency scenarios, improving emergency response capabilities and the timeliness of environmental risk early warning; and the expansion component of the floating component can expand when it comes into contact with water, and the constraint layer can make the expansion component expand in a predetermined direction to form a stable floating posture, ensuring the stable operation of the detection components and improving the accuracy and reliability of monitoring data. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a water monitoring device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the floating component in an embodiment of the present utility model; Figure 3 This is a schematic diagram of the detection component in another embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Floating component; 11. Expanding component; 12. Constraint layer; 13. Protective layer; 21. Housing; 22. Light source assembly; 23. Photodetector; 24. Reflector; 25. Telescopic assembly; 251. First connector; 252. Second connector; 253. Adjustment and fixing component; 26. Control panel; 27. Power supply component; 28. Signal transmitter; 29. ​​Light-transmitting window Detailed Implementation To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] The following is combined with Figures 1 to 3 The following describes embodiments of the present invention.

[0021] According to an embodiment of the present invention, a water monitoring device is provided, comprising: The floating component 1 can be floated in water. The floating component 1 includes an expansion component 11 and a constraint layer 12. The constraint layer 12 covers the outer peripheral surface of the expansion component 11. The constraint layer 12 is adapted to elastically constrain the expansion direction of the expansion component 11 when it expands in water, so that the expansion component 11 expands in a predetermined direction to drive the floating component 1 to form a stable floating posture. The detection component is connected to the float 1 and is suitable for detecting aquatic environmental parameters.

[0022] Specifically, the detection component can be any water environment monitoring sensor that needs to be in contact with water for measurement, such as a water quality monitoring sensor or a flow monitoring sensor. In this embodiment, the detection component can be set to a height not exceeding 100mm and a bottom length not exceeding 20mm, making it small in size and lightweight, with the advantages of being able to be thrown to any water location.

[0023] The water monitoring device provided in this embodiment, with the help of the floating component 1, can be directly deployed at any location in the water body without relying on a fixed support or base, breaking through the limitations of the usage scenario and expanding the monitoring range; it can be quickly deployed in sudden emergency scenarios, improving emergency response capabilities and the timeliness of environmental risk early warning; and the expansion component 11 of the floating component 1 can expand when it comes into contact with water, and the constraint layer 12 can make the expansion component 11 expand in a predetermined direction to form a stable floating posture, ensuring the stable operation of the detection components and improving the accuracy and reliability of monitoring data.

[0024] Furthermore, the floating component 1 also includes: A protective layer 13 is provided on the outer peripheral surface of the constraint layer 12. The protective layer 13 is adapted to dissolve in water to expose the constraint layer 12 and the expansion member 11 in water.

[0025] As is easily understood, the protective layer 13 covers the outer periphery of the constraint layer 12, which can effectively protect the internal constraint layer 12 and expansion component 11 before the device is stored, transported and deployed, preventing them from being damaged in advance due to external collisions, friction or environmental factors. When the device enters the water body, the water-soluble protective layer 13 will naturally dissolve, automatically exposing the constraint layer 12 and expansion component 11. The expansion component 11 can be started in the water-contact expansion process without additional operation, which simplifies the deployment steps and ensures that the device can smoothly enter the predetermined state when it needs to work, improving the overall convenience and reliability of use.

[0026] Furthermore, the material of the protective layer 13 includes water-soluble polyvinyl alcohol.

[0027] In simple terms, polyvinyl alcohol (PVA) membranes are water-soluble and stable, and have moderate mechanical strength in dry environments, which can reliably protect the internal structure from physical damage during storage and transportation. Their dissolution rate can be adjusted by formula to suit different water environments, ensuring that they dissolve in the water body as expected after entering the water body. Moreover, the material is non-toxic and harmless, and will not cause secondary pollution to the water body after dissolution, which meets the environmental protection requirements of water environment monitoring. At the same time, the cost is relatively controllable, making it suitable for large-scale applications.

[0028] In an optional embodiment, the protective layer 13 may also be made of a water-soluble starch film. The water-soluble starch film is made from natural materials and has excellent biodegradability, making it suitable for sensitive water areas with extremely high environmental protection requirements.

[0029] Furthermore, the constraint layer 12 is a carbon fiber woven mesh constraint layer 12, and the mesh diameter of the carbon fiber woven mesh constraint layer 12 is within 1 mm.

[0030] It is easy to understand that carbon fiber has high strength and light weight, which can provide stable and durable elastic constraint for the expansion component 11, ensuring that it expands in the predetermined direction. At the same time, carbon fiber is resistant to water corrosion and has good chemical stability, and it is not easily damaged even when immersed in water for a long time, which can ensure the long-term stable operation of the device. The mesh size with a diameter range of 1mm can control the degree and shape of the expansion component 11, which avoids the constraint failure caused by the mesh being too large, and also prevents the expansion from being hindered by the mesh being too small.

[0031] In an alternative embodiment, a fiberglass woven mesh can be used as the restraint layer 12, which is less expensive and has good mechanical strength and corrosion resistance.

[0032] Furthermore, the expansion member 11 is a rubber expansion member 11.

[0033] It is easy to understand that rubber material has good elasticity and water-swelling properties. It can respond quickly and expand after contact with water, and meet the buoyancy requirements for floating on the water surface. When combined with the constraint layer 12, it can accurately achieve expansion in a predetermined direction, ensuring that the floating part 1 forms a stable posture. At the same time, rubber has good water resistance and is not easy to age or crack when immersed in water for a long time, and can maintain a stable expansion effect and structural strength.

[0034] In an alternative embodiment, an expansion member 11 made of water-swellable resin can also be used. The material has strong chemical stability, stable shape after expansion, and a wide range of mesh diameters, making it suitable for long-term monitoring scenarios.

[0035] Furthermore, the floating component 1 is connected to the detection assembly via a fixing component.

[0036] Specifically, the fastener is a screw fastener, which is suitable for fixing the detection assembly to the expansion member 11.

[0037] It is easy to understand that the screw fastener has high connection strength, which can stably fix the detection component and the expansion component 11, preventing relative displacement between the two under conditions such as water sloshing and water flow impact, ensuring the stability of the detection position of the detection component and ensuring the consistency of the detection data.

[0038] In an alternative embodiment, a snap-fit ​​fastener can be used, with a protruding snap-fit ​​on the expansion member 11 and a slot on the corresponding position of the detection component. Quick connection is achieved by the engagement of the snap-fit ​​and the slot, which is suitable for scenarios that require frequent disassembly and assembly.

[0039] Furthermore, the outer wall of the detection component is provided with a lifting structure, which is suitable for adjusting the position of the detection component in the water by hooking it with an external tool.

[0040] Furthermore, the detection components include: The housing 21 is provided with a light-transmitting window 29, which is adapted to close the housing 21 to prevent the water sample to be tested from entering the housing 21. The light source assembly 22 is disposed within the housing 21 and is used to provide a light beam; The photodetector 23 is disposed inside the housing 21; The light beam provided by the light source component 22 passes through the light-transmitting window 29 and the water sample to be tested, and is then incident on the photodetector 23. It is easy to understand that the combined design of the housing 21 and the light-transmitting window 29 effectively isolates the water sample from the light source component 22 and the photodetector 23 inside the housing 21, preventing impurities and corrosive substances in the water sample from contaminating or damaging the core components, thus improving the component's lifespan and detection stability. The light-transmitting window 29 ensures that the light beam emitted by the light source component 22 can stably penetrate the water sample and ultimately be incident on the photodetector 23, while also maintaining a closed environment inside the housing 21, reducing the impact of external light, dust, and other interference factors on detection accuracy. Simultaneously, the overall structure is compact, facilitating integration into various water quality testing equipment and reducing the overall design complexity of the equipment.

[0041] Furthermore, a light filter is also provided on the light-transmitting window 29.

[0042] It is easily understood that the filter can filter stray light in non-target wavelength bands, reduce background noise interference with the photodetector 23, reduce scattering loss of the optical signal, and improve the sensitivity and accuracy of the photodetector 23 in receiving the optical signal. Furthermore, the light-transmitting window 29 includes a first light-transmitting window 29 and a second light-transmitting window 29; A detection area is formed on the outside of the housing 21. The detection area is used to contain the water sample to be tested. A first light-transmitting window 29 and a second light-transmitting window 29 are respectively provided on the two opposite side walls of the detection area. The light beam provided by the light source assembly 22 passes through the first light-transmitting window 29, the water sample to be tested and the second light-transmitting window 29 in sequence and then enters the photodetector 23.

[0043] In a straightforward manner, the light-transmitting window 29 is divided into a first light-transmitting window 29 and a second light-transmitting window 29, which are respectively set on two opposite sidewalls of the detection area outside the housing 21. The light beam must pass through the first light-transmitting window 29, the water sample to be tested, and the second light-transmitting window 29 in sequence before reaching the photodetector 23. This can strictly constrain the beam propagation path, prevent the beam from deviating within the detection area, and ensure that the beam always stably passes through the fixed area of ​​the water sample to be tested, thereby improving the accuracy and repeatability of the detection data. The detection area is independent of the interior of the housing 21, and the two windows serve as independent channels for the beam to enter and exit, which can further isolate the water sample to be tested from the core components inside the housing 21, preventing the risk of water sample leakage. At the same time, the independent detection area combined with the dual-window structure makes it easy to flexibly adjust the volume of the detection area according to the amount of water sample to be tested, adapting to different detection scenario requirements and improving the applicability and flexibility of the component.

[0044] Furthermore, the photodetector 23 is disposed on the same side as the light source assembly 22; The detection assembly also includes a reflector 24 and a telescopic assembly 25. The reflector 24 is connected to the housing 21 via the telescopic assembly. The reflector 24 has a reflective surface, which is positioned facing the photodetector 23. A test area is formed between the reflective surface and the photodetector 23. The test area is used to contain the water sample to be tested. The light beam provided by the light source assembly 22 passes through the light transmission window 29 and the water sample to be tested in sequence and reaches the reflective surface of the reflector 24 to form a reflected light beam. The reflected light beam passes through the water sample to be tested and the light transmission window 29 in sequence and is incident on the photodetector 23.

[0045] In an easy-to-understand way, the newly added reflector 24 and telescopic component 25 of the detection component, by setting the photodetector 23 and the light source component 22 on the same side, together with the reflected light path formed by the reflector 24, allow the light signal to pass through the water sample to be tested twice, increasing the interaction path between the light and the water sample, which can more sensitively capture the optical properties of trace components in the water sample and improve the detection accuracy of low concentration water samples.

[0046] Specifically, the water sample to be tested forms a test area with the light source assembly 22 and the photodetector 23 and the reflector 24. The light signal emitted by the light source assembly 22 illuminates the water sample to be tested. After the light signal passes through the water sample to be tested, it reaches the reflector 24. Reflected light is formed on the reflective surface of the reflector 24. The reflected light passes through the water sample to be tested again and is received by the photodetector 23 located in the central area. The photodetector 23 converts the light signal into an electrical signal, thereby realizing the detection of water environmental parameters (such as water quality).

[0047] Furthermore, the telescopic component 25 includes: The first connector 251 is fixedly mounted on the housing 21; The second connector 252 is movably mounted on the first connector 251, and the reflector 24 is mounted on the second connector 252. The distance between the reflector 24 and the light-transmitting window 29 can be adjusted by moving the second connector 252. The adjusting fastener 253 is adjustablely mounted on the second connector 252, and the adjusting fastener 253 is suitable for fixing the relative position of the first connector 251 and the second connector 252.

[0048] In an easy-to-understand way, the telescopic component 25 can flexibly change the distance between the reflector 24 and the light-transmitting window 29 by adjusting the position of the second connector 252 on the first connector 251, thereby adjusting the thickness of the water sample in the area to be tested and adapting to different detection requirements (such as reducing the distance when detecting high turbidity water samples and increasing the distance when detecting low concentration water samples). The adjusting fixing component 253 can stably lock the adjusted position to ensure that the light path distance is consistent.

[0049] Specifically, the first connector 251 is a hollow tubular structure, fixed to the outer wall of the housing 21 by welding or bolts. Its inner wall can be provided with a groove parallel to the length direction of the housing 21, and a protrusion is provided in the groove to guide the movement of the second connector 252. The second connector 252 is adapted to the structure of the first connector 251 and can be rod-shaped. One end of the rod is fixedly connected to the reflector 24 by bolts or buckles, and the other end is inserted into the groove of the first connector 251. The outer wall is provided with a slider or groove that matches the groove to ensure smooth movement without rotation. The adjusting fixing part 253 can be a wing bolt. The second connector 252 has a radially threaded hole. The wing bolt passes through the threaded hole and abuts against the outer wall of the first connector 251. The position of the two is fixed by the friction generated by tightening the wing bolt. It can be adjusted when loosened. The operation is convenient and the fixing is firm.

[0050] Furthermore, the detection components also include: The control board 26 is disposed in the housing 21 and is electrically connected to the light source assembly 22 and the photodetector 23 respectively; The power supply component 27 is disposed in the housing 21 and is electrically connected to the control board 26, the light source assembly 22 and the photodetector 23 respectively; The signal transmitter 28 is located on the side of the housing 21 away from the light-transmitting window 29, and the signal transmitter 28 is electrically connected to the control board 26 and the power supply component 27.

[0051] Intuitively, the control board 26 coordinates the operation of the light source assembly 22 and the photodetector 23 to control the detection process and improve detection efficiency; the power supply component 27 provides stable power support for each electronic component, ensuring continuous and reliable operation of the components, eliminating dependence on external power sources, and enhancing the independence and portability of the device; the signal transmitter 28 can transmit the detected data to an external receiving device in real time, enabling remote monitoring, facilitating timely acquisition and analysis of water information, and especially in emergency monitoring scenarios, it can quickly transmit key data and improve decision-making efficiency.

[0052] Specifically, the control board 26, as the core control unit, integrates relevant circuits and control chips. It can control parameters such as the luminous intensity and frequency of the light source component 22 according to preset programs or external commands, and simultaneously receive and process the electrical signals output by the photodetector 23. The power supply component 27 can be a high-performance lithium battery, which has the characteristics of large capacity, small size, and convenient charging. It can provide long-lasting power for the control board 26, the light source component 22, and the photodetector 23, and different capacity batteries can be selected according to monitoring needs. The signal transmitter 28 adopts a wireless communication module, such as Bluetooth, Wi-Fi, or LoRa module. It is installed on the side of the housing 21 away from the light-transmitting window 29 to reduce the interference of water on the signal. It is electrically connected to the control board 26 and can send out the processed detection data in the form of wireless signals to realize real-time data transmission and sharing.

[0053] Furthermore, the light source assembly 22 includes multiple light source bodies arranged in a ring, and the photodetector 23 is disposed in the central region of the ring arrangement of the multiple light source bodies. Specifically, the emission wavelength range of the multiple light source bodies includes one or more of the ultraviolet, visible, and near-infrared light bands.

[0054] As easily understood, the light source assembly 22 includes multiple light source bodies arranged in a ring, and the photodetector 23 is located in the central region. If multiple light source bodies with different emission spectra are used, the absorption or scattering characteristics of light of different wavelengths for various pollutants in the water (such as organic matter, heavy metals, algae, etc.) will be different. The combination of multiple wavelengths can realize the simultaneous detection of multiple water parameters and improve the comprehensiveness of the detection. The ring arrangement makes the light emitted by the light source body uniformly cover the area to be measured. With the photodetector 23 in the center, it can ensure that the light signals reflected or transmitted in all directions are efficiently received, reduce the detection blind zone, and improve the stability and accuracy of the data.

[0055] Specifically, 4-8 light sources with different wavelengths can be selected, such as 254nm in the ultraviolet band, 450nm, 550nm, and 650nm in the visible light band, and 800nm ​​and 900nm in the near-infrared band. They are evenly distributed on the same circumference to form a ring structure according to their wavelength characteristics. The light source and the light-transmitting window 29 at the bottom of the shell 21 are kept at a suitable distance to ensure that the light signal can effectively act on the water sample to be tested.

[0056] The photodetector 23 can be a silicon-based photodiode or array detector that can respond to the above-mentioned multi-wavelength range. It is fixed at the geometric center of the ring light source, with its sensing surface facing the reflecting surface of the reflector 24 and at the same distance from each light source. The control board 26 can control the opening and intensity of each light source individually. By collecting light signals at different wavelengths in a time-division manner, it can achieve accurate detection of various water quality parameters such as ammonia nitrogen, COD, and chlorophyll in the water.

[0057] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A water body monitoring device, characterized in that, include: A floating component (1) is floatable in water. The floating component (1) includes an expansion component (11) and a constraint layer (12). The constraint layer (12) covers the outer peripheral surface of the expansion component (11). The constraint layer (12) is adapted to elastically constrain the expansion direction of the expansion component (11) when it expands in water, so that the expansion component (11) expands in a predetermined direction to drive the floating component (1) to form a stable floating posture. A detection component is connected to the floating component (1), and the detection component is adapted to detect water environment parameters.

2. The water monitoring device according to claim 1, characterized in that, The floating component (1) also includes: A protective layer (13) is provided on the outer peripheral surface of the constraint layer (12), and the protective layer (13) is adapted to dissolve in water to expose the constraint layer (12) and the expansion member (11) in the water.

3. The water monitoring device according to claim 2, characterized in that, The material of the protective layer (13) includes water-soluble polyvinyl alcohol; And / or, the constraint layer (12) is a carbon fiber woven mesh constraint layer (12), and the mesh diameter of the carbon fiber woven mesh constraint layer (12) is within 1 mm; And / or, the expansion member (11) is a rubber expansion member (11).

4. The water monitoring device according to any one of claims 1-3, characterized in that, The floating component (1) is connected to the detection assembly via a fixing component.

5. The water monitoring device according to any one of claims 1-3, characterized in that, The outer wall of the detection component is provided with a lifting structure, which is adapted to be hooked by an external tool to adjust the position of the detection component in the water.

6. The water monitoring device according to any one of claims 1-3, characterized in that, The detection component includes: The housing (21) is provided with a light-transmitting window (29), which is adapted to close the housing (21) to prevent the water sample to be tested from entering the housing (21). A light source assembly (22), disposed within the housing (21), is used to provide a light beam; A photodetector (23) is disposed inside the housing (21); The light beam provided by the light source assembly (22) is incident on the photodetector (23) through the light-transmitting window (29) and the water sample to be tested.

7. The water monitoring device according to claim 6, characterized in that, The light-transmitting window (29) includes a first light-transmitting window (29) and a second light-transmitting window (29); A detection area is formed on the outside of the housing (21). The detection area is used to contain the water sample to be tested. The first light-transmitting window (29) and the second light-transmitting window (29) are respectively provided on the two opposite side walls of the detection area. The light beam provided by the light source assembly (22) passes through the first light-transmitting window (29), the water sample to be tested and the second light-transmitting window (29) in sequence and then enters the photodetector (23).

8. The water monitoring device according to claim 6, characterized in that, The photodetector (23) is disposed on the same side as the light source assembly (22); The detection component further includes a reflector (24) and a telescopic component (25). The reflector (24) is connected to the housing (21) through the telescopic component (25). The reflector (24) has a reflective surface, which is positioned facing the photodetector (23). A test area is formed between the reflective surface and the photodetector (23). The test area is used to accommodate the water sample to be tested. The light beam provided by the light source assembly (22) passes through the light-transmitting window (29) and the water sample to be tested in sequence to reach the reflective surface and form a reflected light beam. The reflected light beam passes through the water sample to be tested and the light-transmitting window (29) in sequence and is incident on the photodetector (23).

9. The water monitoring device according to claim 8, characterized in that, The telescopic component (25) includes: The first connector (251) is fixedly mounted on the housing (21); The second connector (252) is movably disposed on the first connector (251), and the reflector (24) is disposed on the second connector (252). The distance between the reflector (24) and the light-transmitting window (29) can be adjusted by moving the second connector (252). An adjusting fastener (253) is adjustablely disposed on the second connector (252), and the adjusting fastener (253) is adapted to fix the relative positions of the first connector (251) and the second connector (252).

10. The water monitoring device according to claim 6, characterized in that, The light source assembly (22) includes multiple light source bodies arranged in a ring, and the photodetector (23) is disposed in the central region of the multiple light source bodies arranged in a ring.

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