High-precision measurement optical water quality sensor
By introducing telescopic components and an independent cabin structure into the optical water quality sensor, the light-transmitting part can be cleaned and calibrated without changing the sensor structure, solving the problems of underwater measurement accuracy and maintenance, improving measurement accuracy and extending the maintenance cycle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG XINYUE TECH CO LTD
- Filing Date
- 2025-03-20
- Publication Date
- 2026-04-24
AI Technical Summary
When existing optical water quality sensors are used underwater, they are severely affected by water environment erosion, biological adhesion, and impurity adhesion, which affects measurement accuracy and makes maintenance difficult. Existing anti-adhesion measures pose potential water ecological risks and are inconvenient to operate.
Design a high-precision optical water quality sensor that uses a telescopic component to drive an independent chamber to reciprocate within a measuring pipe. The chamber stores cleaning liquid to clean the inner wall of the light-transmitting part, and calibration liquid is used for calibration during measurement, achieving flexible cleaning and calibration without disassembling the sensor.
It improves measurement accuracy, extends the maintenance cycle of sensors, avoids impact on the aquatic ecosystem and damage to the sensor structure, and achieves high-precision measurement and long-term maintenance.
Smart Images
Figure CN224163574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality monitoring technology, specifically to a high-precision optical water quality sensor. Background Technology
[0002] Optical water quality sensors can measure water quality parameters such as nutrients and chlorophyll, and have wide applications in water supply, reclaimed water, drainage, sewage, rivers, lakes, and oceans. However, in underwater applications, the performance of existing optical water quality sensors is severely affected by water environment erosion, biofouling, and impurity buildup. Sensor maintenance and cleaning require significant manpower, material resources, and financial investment. While anti-fouling coatings, materials, and ultraviolet light technology can reduce biofouling and impurity buildup, these methods pose potential risks to the aquatic ecosystem and affect measurement accuracy. Furthermore, the manufacturing process of the sensor probe is often incompatible with anti-corrosion coatings and materials, greatly limiting their anti-corrosion and anti-fouling applications. Alternatively, water rinsing or direct physical wiping with a brush can remove deposits, but these methods are inconvenient and can easily damage the sensor probe. Therefore, existing optical water quality sensors do not offer satisfactory anti-fouling, improved measurement accuracy, or extended maintenance cycles. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a high-precision optical water quality sensor that can promptly clean and remove the deposits on the inner wall of the light-transmitting part without changing the structure and material of the measuring pipe or disassembling the sensor, thereby improving the measurement accuracy of the sensor and extending the maintenance cycle of the sensor.
[0004] To solve the above problems, the technical solution adopted by this utility model is as follows: A high-precision optical water quality sensor includes a housing, a measuring pipe, an optical component, and a telescopic component; the measuring pipe is disposed inside the housing and has a light-transmitting portion; the optical component is disposed inside the housing; the telescopic component is movably inserted into the measuring pipe, and there are independent first and second chambers between the telescopic component and the measuring pipe. The first chamber is sealed and stores cleaning liquid, and the second chamber is connected to the external environment; when the telescopic component moves the first chamber to the position of the light-transmitting portion, the cleaning liquid in the first chamber can clean the inner wall of the light-transmitting portion; when the telescopic component moves the second chamber to the position of the light-transmitting portion, the optical component can measure the liquid parameters of the liquid to be measured in the second chamber through the light-transmitting portion.
[0005] Compared to existing technologies, the advantages of this invention are as follows: This optical water quality sensor uses a telescopic component to move the first and second chambers back and forth along the measuring pipe. During each measurement, the cleaning liquid in the first chamber cleans the inner wall of the light-transmitting part, promptly removing organisms, impurities, and other deposits. When the second chamber moves to the position of the light-transmitting part, since the deposits on the inner wall have been cleaned, the light-transmitting component can accurately measure the liquid in the second chamber and output a precise reading. Therefore, this optical water quality sensor can flexibly and periodically clean the inner wall of the light-transmitting part using cleaning liquid without changing the structure and material of the measuring pipe or disassembling the sensor. This avoids affecting the aquatic ecosystem, damages the sensor structure, and promptly removes deposits from the inner wall of the light-transmitting part, improving the sensor's measurement accuracy and extending its maintenance cycle.
[0006] The aforementioned high-precision optical water quality sensor also includes a calibration chamber between the telescopic component and the measuring pipe. The calibration chamber is located between the first chamber and the second chamber, and a calibration liquid is sealed and stored inside the calibration chamber. When the calibration chamber moves to the position of the light-transmitting part, the optical component can measure the liquid parameters of the calibration liquid inside the calibration chamber through the light-transmitting part.
[0007] The aforementioned high-precision optical water quality sensor includes a calibration chamber comprising a third chamber and a fourth chamber, both of which are independent of each other. Each third chamber and the fourth chamber contains a sealed calibration liquid. The first chamber, the third chamber, the fourth chamber, and the second chamber are distributed sequentially along the telescopic movement direction of the telescopic component.
[0008] In the aforementioned high-precision optical water quality sensor, the outer wall of the telescopic component and the inner wall of the measuring pipe are abutted against each other through a sealing structure.
[0009] The aforementioned high-precision optical water quality sensor also includes a driving component, which is installed inside the housing and is used to drive the telescopic component to extend and retract along the measuring pipe.
[0010] The aforementioned high-precision optical water quality sensor also includes a transmission assembly, which connects the driving component and the telescopic component. The transmission assembly can drive the telescopic component to extend and retract along the measuring pipe under the drive of the driving component.
[0011] The aforementioned high-precision optical water quality sensor includes a transmission assembly comprising a gear set and a lead screw. The gear set connects the driving component and the lead screw, and a movable plate is movably connected to the lead screw. The inner end of the telescopic component is fixedly connected to the movable plate. The gear set can drive the lead screw to rotate under the drive of the driving component. When the lead screw rotates, it can drive the movable plate to move axially, thereby driving the telescopic component to extend and retract along the measuring pipe.
[0012] The aforementioned high-precision optical water quality sensor includes a housing, a front cover, and a rear cover, with the front cover and the rear cover respectively sealingly covering the front and rear ends of the housing.
[0013] The aforementioned high-precision optical water quality sensor has a watertight interface on its rear cover.
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the optical water quality sensor in the first state according to an embodiment of the present invention;
[0016] Figure 2 This is a schematic diagram of the optical water quality sensor in the second state according to an embodiment of the present invention;
[0017] Figure 3 This is a schematic diagram of the optical water quality sensor in the third state according to an embodiment of the present invention;
[0018] Figure 4 This is a schematic diagram of the optical water quality sensor in the fourth state according to an embodiment of the present invention.
[0019] The reference numerals are as follows: 100 Outer shell, 110 Housing, 120 Front cover, 130 Rear cover, 140 Watertight interface, 150 Light blocking component, 151 Light-transmitting hole, 160 Fixed plate, 170 Moving plate, 180 Support plate, 190 Slide rail, 200 Measuring pipe, 210 Light-transmitting part, 300 Optical component, 400 Telescopic component, 410 Opening, 500 First chamber, 600 Second chamber, 700 Calibration chamber, 710 Third chamber, 720 Fourth chamber, 800 Drive component, 900 Transmission component, 910 Gear set, 920 Lead screw. Detailed Implementation
[0020] The embodiments of this utility model are described in detail below:
[0021] Example 1
[0022] Reference Figures 1 to 4Embodiment 1 of this utility model provides a high-precision optical water quality sensor, including a housing 100, a measuring pipe 200, an optical component 300, and a telescopic component 400.
[0023] The housing 100 includes a housing 110, a front cover 120, and a rear cover 130. The front cover 120 and the rear cover 130 are respectively sealed to the front and rear ends of the housing 110, so that the housing 110, the front cover 120, and the rear cover 130 form a water-tight accommodating cavity. This cavity is used to house the measuring pipe 200 and optical components 300, and to protect the internal components from adverse effects of the external environment on the sensor. The rear cover 130 is provided with a watertight interface 140, which enables electrical connection and signal transmission while ensuring sealing performance.
[0024] Both the measuring pipe 200 and the optical component 300 are housed within the housing 100. The measuring pipe 200 has an opening 410 at its end near the front cover 120, and also has a light-transmitting portion 210 to allow the light beam from the optical component 300 to pass through. It should be noted that the light-transmitting portion 210 in the measuring pipe 200, as described in this application, refers to a location on the measuring pipe 200 through which the light beam from the optical component 300 can pass. Areas where the light beam cannot pass through can be either incorporated into the structure of the measuring pipe 200 itself using special materials, or implemented using other light-blocking structures within the housing 100. Therefore, it can be understood that the measuring pipe 200 itself can be partially or entirely light-transmitting. For example, in some embodiments, the measuring pipe 200 is entirely a light-transmitting pipe, and a light-blocking component 150 is installed inside the housing 100. The light-blocking component 150 has a light-transmitting hole 151. The measuring pipe 200 is disposed inside the light-blocking component 150. The area of the measuring pipe 200 located inside the light-transmitting hole 151 can be considered as the light-transmitting part 210 of the measuring pipe 200. The optical component 300 is disposed outside the light-transmitting hole 151. During measurement, the light beam emitted by the optical component 300 can enter through the light-transmitting hole 151 and illuminate the measuring pipe 200. The structure and working principle of the optical component 300 can be referred to existing optical water quality sensors, and will not be described in detail here.
[0025] Continue to refer to Figure 1The telescopic component 400 is a plunger structure that can be movably inserted into the measuring pipe 200. The shape and size of the telescopic component 400 match the shape and size of the measuring pipe 200. The cross-sectional profile of the telescopic component 400 can be square, circular, or elliptical, preferably circular, but it needs to match the cross-sectional profile of the measuring pipe 200. There are independent first chambers 500 and second chambers 600 between the telescopic component 400 and the measuring pipe 200. The first chamber 500 is sealed and stores a cleaning liquid, such as an alcohol solution or some washing solution, which can effectively remove biological and impurity deposits from the inner wall of the measuring pipe 200 without damaging the sensor structure or the aquatic ecosystem. One or more first chambers 500 can be set, depending on water quality, measurement time, and cleaning requirements. For example, in cases of poor water quality or long measurement time, multiple first chambers 500 can be set to improve measurement accuracy through multiple cleaning cycles before measurement.
[0026] The second chamber 600 is connected to the external environment through an opening 410 at the outer end of the telescopic member 400. The liquid to be tested from the external environment can enter the second chamber 600 through the opening 410. When the second chamber 600 moves along the measuring pipe 200, it can carry the liquid to be tested to the position of the light-transmitting part 210 of the measuring pipe 200, so that the optical component 300 can measure the liquid to be tested in the second chamber 600 through the light-transmitting part 210. The outer wall of the telescopic member 400 and the inner wall of the measuring pipe 200 are abutted against each other by a sealing structure. The sealing structure can be an independent sealing ring or a buffer layer wrapped around the outer wall of the telescopic member 400 to better achieve circumferential sealing between the first chamber 500 and the second chamber 600.
[0027] Reference Figure 1 Initially, the position of the first chamber 500 corresponds to the position of the light-transmitting part 210. At this time, the cleaning fluid inside the first chamber 500 can clean the deposits on the inner wall of the light-transmitting part 210. Of course, it is understandable that during the extension and retraction of the telescopic member 400, the cleaning fluid inside the first chamber 500 can also clean the deposits on the inner walls of other parts of the measuring pipe 200, not just those on the inner wall of the light-transmitting part 210. (Refer to...) Figure 4 When the sensor is working, the telescopic component 400 first moves inward until the position of the second chamber 600 corresponds to the position of the light-transmitting part 210. At this time, the light beam of the optical component 300 can pass through the light-transmitting part 210 and illuminate the inside of the second chamber 600 to measure the liquid to be measured inside the second chamber 600. After the measurement outputs the reading, the telescopic component 400 moves outward and returns to its initial position. At this time, the position of the first chamber 500 corresponds to the position of the light-transmitting part 210 again, and the cleaning liquid inside the first chamber 500 cleans the inner wall of the light-transmitting part 210 again.
[0028] Therefore, this optical water quality sensor uses a telescopic component 400 to move the first chamber 500 and the second chamber 600 back and forth along the measuring pipe 200. During each measurement, the cleaning liquid inside the first chamber 500 cleans the inner wall of the light-transmitting part 210, promptly removing organisms, impurities, and other deposits. When the second chamber 600 moves to the position of the light-transmitting part 210, since the deposits on the inner wall of the light-transmitting part 210 have been cleaned away, the light-transmitting component can accurately measure the liquid inside the second chamber 600 and output a precise reading. Thus, this optical water quality sensor can flexibly and periodically clean the inner wall of the light-transmitting part 210 using cleaning liquid without changing the structure and material of the measuring pipe 200 or disassembling the sensor. This avoids affecting the aquatic ecosystem, does not damage the sensor structure, and promptly removes deposits from the inner wall of the light-transmitting part 210, improving the sensor's measurement accuracy and extending its maintenance cycle. In addition, during the movement of the telescopic component 400, the cleaning fluid in the first chamber 500 also moves along with it, which has a certain flushing force, but the flushing force is not too large. While improving the cleaning effect, it can also avoid damaging the inner wall of the measuring pipe 200.
[0029] Furthermore, the telescopic movement of the telescopic component 400 can be driven by a cylinder, an electric push rod, a push rod motor, or other similar structures. One driving method is provided here: the optical water quality sensor also includes a driving component 800 and a transmission assembly 900. The driving component 800 is a motor, installed inside the housing 100. For example, a fixed plate 160 can be installed inside the housing 100, and the motor is fixedly mounted on the fixed plate 160. The transmission assembly 900 uses a gear set 910 and a lead screw 920. The gear set 910 connects the motor and the lead screw 920. A movable plate 170 is movably connected to the lead screw 920, and the inner end of the telescopic component 400 is fixedly connected to the movable plate 170. A support plate 180 is also fixedly installed inside the housing 100. The two ends of the lead screw 920 are rotatably connected to the fixed plate 160 and the support plate 180, respectively. A slide rail 190 is also installed between the fixed plate 160 and the support plate 180, and the movable plate 170 is movably connected to the slide rail 190. When it is necessary to move the telescopic component 400, the gear set 910 can drive the lead screw 920 to rotate under the drive of the drive component 800. When the lead screw 920 rotates, it can drive the moving plate 170 to move axially, thereby driving the telescopic component 400 to move telescopically along the measuring pipe 200.
[0030] Example 2
[0031] Reference Figures 1 to 4 Embodiment 2 of this utility model provides a high-precision optical water quality sensor, including a housing 100, a measuring pipe 200, an optical component 300, and a telescopic component 400.
[0032] The housing 100 includes a housing 110, a front cover 120, and a rear cover 130. The front cover 120 and the rear cover 130 are respectively sealed to the front and rear ends of the housing 110, so that the housing 110, the front cover 120, and the rear cover 130 form a water-tight accommodating cavity. This cavity is used to house the measuring pipe 200 and optical components 300, and to protect the internal components from adverse effects of the external environment on the sensor. The rear cover 130 is provided with a watertight interface 140, which enables electrical connection and signal transmission while ensuring sealing performance.
[0033] The measuring pipe 200 and the optical component 300 are both located inside the housing 100. The measuring pipe 200 has an opening 410 at one end near the front cover 120. The measuring pipe 200 also has a light-transmitting part 210 to allow the light beam of the optical component 300 to pass through.
[0034] Continue to refer to Figure 1 The telescopic component 400 is a plunger structure that can be movably inserted into the measuring pipe 200. The shape and size of the telescopic component 400 match the shape and size of the measuring pipe 200. The cross-sectional profile of the telescopic component 400 can be square, circular, or elliptical, preferably circular, but it needs to match the cross-sectional profile of the measuring pipe 200. There are independent first chambers 500 and second chambers 600 between the telescopic component 400 and the measuring pipe 200. The first chamber 500 is sealed and stores a cleaning liquid, such as an alcohol solution or some washing solution, which can effectively remove biological and impurity deposits from the inner wall of the measuring pipe 200 without damaging the sensor structure or the aquatic ecosystem. One or more first chambers 500 can be set, depending on water quality, measurement time, and cleaning requirements. For example, in cases of poor water quality or long measurement time, multiple first chambers 500 can be set to improve measurement accuracy through multiple cleaning cycles before measurement.
[0035] The second chamber 600 is connected to the external environment through an opening 410 at the outer end of the telescopic member 400, allowing the liquid to be tested from the external environment to enter the second chamber 600 through the opening 410. When the second chamber 600 moves along the measuring pipe 200, it can carry the liquid to be tested to the position of the light-transmitting part 210 of the measuring pipe 200, so that the optical component 300 can measure the liquid to be tested in the second chamber 600 through the light-transmitting part 210. The outer wall of the telescopic member 400 and the inner wall of the measuring pipe 200 are abutted against each other by a sealing structure. The sealing structure can be an independent sealing ring or a buffer layer wrapped around the outer wall of the telescopic member 400 to better achieve circumferential sealing between the first chamber 500 and the second chamber 600.
[0036] The calibration chamber 700 contains a sealed calibration liquid. When the calibration chamber 700 moves to the position of the light-transmitting section 210, the optical component 300 can measure the liquid parameters of the calibration liquid inside the calibration chamber 700 through the light-transmitting section 210. The number of calibration chambers 700, as well as the type and concentration of the calibration liquid, can be configured according to the liquid parameters to be measured.
[0037] Reference Figure 1 In the initial state, the position of the first chamber 500 corresponds to the position of the light-transmitting part 210, and the cleaning liquid inside the first chamber 500 can clean the deposits on the inner wall of the light-transmitting part 210. (Refer to...) Figure 2 and Figure 3 During measurement, the telescopic component 400 moves inward until the position of the calibration chamber 700 corresponds to the position of the light-transmitting part 210. At this time, the light beam of the optical component 300 can pass through the light-transmitting part 210 and illuminate the calibration chamber 700 to measure the calibration liquid inside the calibration chamber 700. Based on the measurement results, the sensor is calibrated. Afterwards, refer to... Figure 4 The telescopic component 400 continues to move inward until the position of the second chamber 600 corresponds to the position of the light-transmitting part 210. At this time, the beam of light from the optical component 300 can pass through the light-transmitting part 210 and illuminate the inside of the second chamber 600 to measure the liquid to be tested inside the second chamber 600. After the measurement and output reading, the telescopic component 400 moves outward and returns to its initial position. At this time, the position of the first chamber 500 corresponds to the position of the light-transmitting part 210 again, and the cleaning liquid inside the first chamber 500 cleans the inner wall of the light-transmitting part 210 again.
[0038] Therefore, this optical water quality sensor uses a telescopic component 400 to move the first chamber 500, calibration chamber 700, and second chamber 600 back and forth along the measuring pipe 200. During each measurement, the cleaning liquid in the first chamber 500 cleans the inner wall of the light-transmitting part 210, promptly removing biological matter, impurities, and other deposits. The calibration liquid in the calibration chamber 700 calibrates the sensor to ensure the accuracy of subsequent measurement results. When the second chamber 600 moves to the position of the light-transmitting part 210, since the deposits on the inner wall of the light-transmitting part 210 have been cleaned and the sensor has been calibrated, the light-transmitting component can accurately measure the liquid in the second chamber 600 through the light-transmitting part 210, outputting a precise reading. Therefore, this optical water quality sensor can flexibly and periodically clean the inner wall of the light-transmitting part 210 using a cleaning liquid without altering the structure and material of the measuring pipe 200 or disassembling the sensor. This avoids impacting the aquatic ecosystem, prevents damage to the sensor structure, and effectively removes deposits from the inner wall of the light-transmitting part 210. Simultaneously, after cleaning with the cleaning liquid, the sensor is calibrated using a calibration liquid before measurement, improving measurement accuracy and extending the sensor's maintenance cycle. Furthermore, during the movement of the telescopic component 400, the cleaning liquid within the first chamber 500 also moves, providing a certain scouring force, but not excessively so, improving cleaning effectiveness while preventing damage to the inner wall of the measuring pipe 200. Therefore, this optical water quality sensor design can simultaneously achieve in-situ cleaning, calibration, and measurement, improving measurement accuracy while effectively extending the maintenance and calibration cycle of the optical water quality sensor.
[0039] Furthermore, in this embodiment, the measuring pipe 200 is entirely a light-transmitting pipe, and a light-blocking component 150 is installed inside the outer casing 100. The light-blocking component 150 has a light-transmitting hole 151. The measuring pipe 200 is disposed inside the light-blocking component 150. The area of the measuring pipe 200 located inside the light-transmitting hole 151 can be considered as the light-transmitting part 210 of the measuring pipe 200. The optical component 300 is disposed outside the light-transmitting hole 151. During measurement, the light beam emitted by the optical component 300 can enter through the light-transmitting hole 151 and illuminate the measuring pipe 200. The light-blocking component 150 can block other parts of the measuring pipe 200, reducing interference from other parts to the measurement. At the same time, when the calibration chamber 700 is not moved to the position of the light-transmitting part 210, the light beam of the optical component 300 cannot illuminate the calibration liquid inside the calibration chamber 700. Through the light-blocking design, the quality of the calibration liquid can be guaranteed, effectively extending the effective period of the calibration liquid, thereby extending the maintenance and calibration cycle of the optical water quality sensor.
[0040] Example 3
[0041] Reference Figures 1 to 4 Embodiment 3 of this utility model provides a high-precision optical water quality sensor, which is a further solution of the optical water quality sensor in Embodiment 2. The telescopic member 400 and the measuring pipe 200 have relatively independent first chambers 500, second chambers 600, third chambers 710, and fourth chambers 720. Further, the first chambers 500, second chambers 600, third chambers 710, and fourth chambers 720 can be grooves extending circumferentially along the telescopic member 400 and recessed radially inward along the telescopic member 400. The outer wall of the telescopic member 400 is sealed to the inner wall of the measuring pipe 200, enclosing the first chambers 500, third chambers 710, and fourth chambers 720 to form a sealed chamber. This allows the liquid inside the sealed chamber to move along with the telescopic member 400 without leakage from the periphery. Of course, in other embodiments, the third chamber 710 and fourth chamber 720 can also be sealed chambers formed solely by the telescopic member 400. Furthermore, the first chamber 500 is located at the inner end and contains a sealed cleaning liquid; the second chamber 600 is located at the outer end and is in communication with the external environment, used to contain the liquid to be tested; the third chamber 710 and the fourth chamber 720 are located between the first chamber 500 and the second chamber 600, serving as the calibration chamber 700. Figures 1 to 4 As shown, the first chamber 500, the third chamber 710, the fourth chamber 720, and the second chamber 600 are sequentially distributed along the telescopic movement direction of the telescopic member 400. Both the third chamber 710 and the fourth chamber 720 contain sealed calibration liquids. The concentrations of the liquid parameters to be measured differ between the two calibration liquids. Therefore, when the third chamber 710 and the fourth chamber 720 sequentially move to the position of the light-transmitting part 210, the sensor can measure different readings. Through two-point calibration, the relationship between the sensor readings and the corresponding liquid parameter concentrations can be determined.
[0042] Reference Figure 1 In the initial state, the position of the first chamber 500 corresponds to the position of the light-transmitting part 210, and the cleaning liquid inside the first chamber 500 can clean the deposits on the inner wall of the light-transmitting part 210. (Refer to...) Figure 2 During measurement, the telescopic component 400 moves inward until the third chamber 710 moves to the position of the light-transmitting part 210. At this time, the optical component 300 can measure the liquid parameters of the calibration liquid inside the third chamber 710 through the light-transmitting part 210, obtaining a measurement reading. (Refer to...) Figure 3The telescopic component 400 continues to move inward until the fourth chamber 720 moves to the position of the light-transmitting part 210. At this point, the optical component 300 can measure the liquid parameters of the calibration liquid inside the fourth chamber 720 through the light-transmitting part 210, obtaining another measurement reading. Using these two measurement readings, through two-point calibration, the relationship between the sensor reading and the corresponding liquid parameter concentration can be determined, and the sensor can be calibrated. Afterwards, refer to... Figure 4 The telescopic component 400 continues to move inward until the position of the second chamber 600 corresponds to the position of the light-transmitting part 210. At this time, the beam of light from the optical component 300 can pass through the light-transmitting part 210 and illuminate the inside of the second chamber 600 to measure the liquid to be tested inside the second chamber 600. After the measurement and output reading, the telescopic component 400 moves outward and returns to its initial position. At this time, the position of the first chamber 500 corresponds to the position of the light-transmitting part 210 again, and the cleaning liquid inside the first chamber 500 cleans the inner wall of the light-transmitting part 210 again.
[0043] It should be noted that in the description of this utility model, any descriptions of orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation of this utility model.
[0044] In the description of this utility model, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is mentioned, it is only for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0045] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0046] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A high-precision optical water quality sensor, characterized in that, include: Outer shell (100); A measuring pipe (200) is disposed inside the housing (100), and the measuring pipe (200) has a light-transmitting part (210). An optical component (300) is disposed within the housing (100); as well as The telescopic component (400) is movably inserted into the measuring pipe (200). The telescopic component (400) and the measuring pipe (200) have an independent first chamber (500) and a second chamber (600). The first chamber (500) is sealed and stores cleaning liquid, and the second chamber (600) is connected to the external environment. When the telescopic member (400) moves the first chamber (500) to the position of the light-transmitting part (210), the cleaning liquid in the first chamber (500) can clean the inner wall of the light-transmitting part (210). When the telescopic member (400) moves the second chamber (600) to the position of the light-transmitting part (210), the optical component (300) can measure the liquid parameters of the liquid to be tested in the second chamber (600) through the light-transmitting part (210).
2. The high-precision optical water quality sensor according to claim 1, characterized in that, A calibration chamber (700) is also provided between the telescopic component (400) and the measuring pipe (200). The calibration chamber (700) is located between the first chamber (500) and the second chamber (600). The calibration chamber (700) contains a calibration liquid. When the telescopic component (400) moves the calibration chamber (700) to the position of the light-transmitting part (210), the optical component (300) can measure the liquid parameters of the calibration liquid in the calibration chamber (700) through the light-transmitting part (210).
3. The high-precision optical water quality sensor according to claim 2, characterized in that, The calibration chamber (700) includes a third chamber (710) and a fourth chamber (720) that are independent of each other. Both the third chamber (710) and the fourth chamber (720) contain calibration liquid sealed in them. The first chamber (500), the third chamber (710), the fourth chamber (720) and the second chamber (600) are distributed sequentially along the telescopic movement direction of the telescopic member (400).
4. The high-precision optical water quality sensor according to claim 1, characterized in that, It also includes a drive unit (800), which is installed inside the housing (100) for driving the telescopic member (400) to telescopically move along the measuring pipe (200).
5. The high-precision optical water quality sensor according to claim 4, characterized in that, It also includes a transmission assembly (900) that connects the drive member (800) and the telescopic member (400). The transmission assembly (900) can drive the telescopic member (400) to move telescopically along the measuring pipe (200) under the drive of the drive member (800).
6. The high-precision optical water quality sensor according to claim 5, characterized in that, The transmission assembly (900) includes a gear set (910) and a lead screw (920). The gear set (910) connects the drive member (800) and the lead screw (920). A movable plate (170) is movably connected to the lead screw (920). The inner end of the telescopic member (400) is fixedly connected to the movable plate (170). The gear set (910) can drive the lead screw (920) to rotate under the drive of the drive member (800). When the lead screw (920) rotates, it can drive the moving plate (170) to move axially, thereby driving the telescopic member (400) to move telescopically along the measuring pipe (200).
7. The high-precision optical water quality sensor according to claim 1, characterized in that, The outer casing (100) includes a housing (110), a front cover (120) and a rear cover (130), the front cover (120) and the rear cover (130) respectively sealingly covering the front end and the rear end of the housing (110).
8. The high-precision optical water quality sensor according to claim 7, characterized in that, The rear cover (130) is provided with a watertight interface (140).