A water supply device for supporting water quality monitoring of a plurality of sensors

Abstract

The application relates to the technical field of water quality monitoring and discloses a water supply device for supporting water quality monitoring of various sensors, which comprises a base, a water supply cylinder, a conveying pump, a shunt pipe, a water supply pipe and a sensor assembly. The sensor fixing and connecting mechanism is preliminarily and rapidly positioned and locked on the water storage and discharge mechanism through the quick plug-in cooperation of the buckle structure and the embedded protruding block; meanwhile, the secondary locking of the embedded plate and the locking screw rod and the overall sealing design of the protective frame and the peripheral components guarantee the convenience of sensor disassembly and ensure the structural stability and overall sealing property during long-term operation; the adoption of the sealing and fixing rubber plug realizes the point-to-point reliable sealing between the sensor sensing head and the measuring chamber, effectively eliminates the water leakage risk, makes the daily calibration, replacement and maintenance of the sensor simple and fast, and greatly reduces the system downtime.

Description

Technical Field

[0001] This invention relates to the field of water quality monitoring technology, specifically to a water supply device that supports water quality monitoring using multiple sensors. Background Technology

[0002] Water quality monitoring is a crucial component of environmental protection, water resource management, drinking water safety, and industrial production process control. Traditional water quality monitoring methods primarily rely on manual sampling followed by laboratory analysis. This approach suffers from significant drawbacks, including long sampling cycles, poor real-time performance, high labor intensity, and the inability to promptly detect sudden water pollution incidents.

[0003] To overcome the aforementioned shortcomings, online water quality monitoring technology has experienced rapid development and application. Existing online water quality monitoring devices typically install sensors directly in water supply pipes or flow-through tanks, monitoring water quality parameters in real time through continuous water flow. However, in practical applications, existing technologies still have the following deficiencies: Sensor installation and maintenance are inconvenient: In most devices, sensors are usually directly fixed to pipes or containers by threads or flanges. The disassembly and assembly process is cumbersome, requiring professional tools and a long operation time. When it is necessary to perform regular calibration, cleaning or replacement of faulty sensors, not only is the operation difficult, but it may also cause the monitoring system to be shut down for a long time, affecting the continuity and real-time performance of data. Poor sealing and easy leakage: At the connection between the sensor and the pipe or container, especially when multiple sensors are installed side by side, it is often difficult to ensure a good sealing effect; after long-term operation, the seals are prone to aging or failure, leading to water leakage and seepage problems. This will not only cause water loss, but may also damage electrical equipment and cause safety accidents. The existing devices typically employ a simple water circuit control system, often using a single solenoid valve to control the flow of water. This method makes it difficult to achieve precise control over aspects such as water inlet, drainage, and water level in the measurement chamber. During the measurement process, continuous water flow or water level fluctuations can easily impact or interfere with the sensor, leading to unstable measurement data and poor repeatability. Furthermore, the inability to automatically drain residual water samples from the measurement chamber can easily cause mixing of old and new water samples, resulting in cross-contamination and affecting the accuracy of subsequent measurements. Difficulty in supporting multi-sensor collaborative operation: In order to comprehensively assess water quality, it is usually necessary to monitor multiple parameters such as pH, dissolved oxygen, turbidity, and conductivity simultaneously. However, most existing devices are designed with a single sensor or simply stack multiple sensors together. This structure not only occupies a lot of space, but also makes it difficult to ensure that each sensor is in the best hydraulic conditions and a stable measurement environment. There may also be mutual interference between the sensors, which affects the integration of the multi-parameter monitoring system and the reliability of the data. Lack of inlet water filtration and automatic cleaning function: Water often contains suspended particles, silt and other impurities. If they enter the sensor measurement chamber directly, they will not only affect the light transmission (such as turbidity sensors), but may also block the flow channel, wear down the sensor probe, and shorten the sensor's service life. In existing devices, some lack filtration design, while others have filtration but are difficult to clean, and the filter elements are prone to clogging, requiring frequent manual cleaning.

[0004] Therefore, how to provide a water supply device that enables rapid sensor assembly and disassembly, ensures good sealing, provides a stable measurement environment, and effectively supports the collaborative operation of multiple sensors has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this application is to provide a water supply device that supports water quality monitoring using multiple sensors.

[0006] Firstly, the water supply device provided in this application for supporting water quality monitoring by multiple sensors adopts the following technical solution: It includes a base, a water supply cylinder, a delivery pump, a diversion pipe, a water supply pipe, and sensor assemblies. The base is bolted to the bottom of the water supply cylinder. The water supply cylinder is connected to the delivery pump via a delivery pipe. The delivery pump is connected to the bottom of the diversion pipe. The flange end of the water supply pipe is connected to the flange end of the diversion pipe. Multiple sets of sensor assemblies are embedded in the top of the water supply pipe. Each sensor assembly includes an inlet filter connector and an opening / closing mechanism. The system includes a conveying mechanism, a water storage and discharge mechanism, a sensor fixing and connection mechanism, a miniature discharge valve, an inlet filter layer, and a drain hole. The inlet filter connector is embedded in the top of the water supply pipe. An opening and closing conveying mechanism is installed inside the inlet filter connector. The right end of the inlet filter connector is fixed with the water storage and discharge mechanism. The sensor fixing and connection mechanism is installed on the top of the water storage and discharge mechanism. A miniature discharge valve is provided at the bottom of the water storage and discharge mechanism. The lower left end and the lower left side of the inlet filter connector are provided with an inlet filter layer and a drain hole.

[0007] By adopting the above technical solution, an integrated water supply and monitoring platform was constructed. The base and water supply cylinder provide a stable foundation and water source, and the water sample is controllably delivered to the water supply pipe through a delivery pump and a diversion pipe. Multiple sensor components are embedded in the water supply pipe, realizing modular and multi-point monitoring of water quality. The inlet filter connector inside the sensor component is responsible for the initial introduction and filtration of the water sample, the opening and closing conveying mechanism controls the flow path of the water sample, the water storage and discharge mechanism provides a stable measurement environment for the sensor, the sensor fixing connection mechanism ensures the stability and sealing of the sensor installation, and the miniature discharge valve and drain hole facilitate the discharge of the water sample after measurement, preventing water accumulation and cross-contamination.

[0008] Preferably, the right end of the water inlet filter connector is provided with an overflow hole, which is connected to the left end of the water storage and discharge mechanism.

[0009] By adopting the above technical solution, the overflow hole plays a role in water level control. After the water sample enters and fills the water storage and discharge mechanism through the inlet filter connector, the excess water can be discharged through the overflow hole, ensuring a stable water level in the water storage and discharge mechanism, providing a constant measurement environment for the sensor, thereby improving the accuracy of the monitoring data.

[0010] Preferably, the top of the water storage and discharge mechanism is provided with a buckle structure, and the bottom of the sensor fixing connection mechanism is inserted into the buckle structure. The water inlet filter connector, the water storage and discharge mechanism, and the sensor fixing connection mechanism form an L-shaped structure. The water storage and discharge mechanism is placed inside the upper end of the water supply pipe.

[0011] By adopting the above technical solution, the snap-fit ​​structure enables quick assembly and disassembly of the sensor fixing connection mechanism, facilitating sensor maintenance, calibration, or replacement. The ingenious L-shaped structure formed by the three components places the sensor fixing connection mechanism at the top for easy operation, while the water storage and discharge mechanism extends into the water supply pipe to directly contact the water flow. The overall structure is compact, saving installation space, while ensuring direct water sample collection and convenient sensor maintenance.

[0012] Preferably, the opening and closing conveying mechanism includes a fixed plate, a servo motor, a movable shaft, a bevel gear set, a swing plate, a swing arm, a vertical sliding block, a sealing plate, and a linkage structure. The fixed plate is embedded in the top of the water inlet filter connector. The fixed plate is bolted to the top of the servo motor. The output end of the servo motor is driven by the movable shaft. The bottom of the movable shaft is movably connected to the water inlet filter connector. The movable shaft is driven by the upper right bevel gear of the bevel gear set. The left bevel gear of the bevel gear set is driven by the upper end of the swing plate via a rotating shaft. The swing plate is hinged to the upper end of the swing arm. The swing arm is movably connected to the upper end of the vertical sliding block. The vertical sliding block slides in cooperation with the inner left end of the water inlet filter connector. The vertical sliding block is fixed to the upper end of the sealing plate, and the sealing plate slides in cooperation with the inner side of the water inlet filter layer. A linkage structure is provided at the lower right end of the sliding block. The linkage structure is used to seal and open the drain hole.

[0013] By adopting the above technical solution, an automated mechanism for precise water circuit control is provided. A servo motor serves as the power source, changing the transmission direction via a movable shaft and bevel gear set to drive the swing plate to oscillate. The swing plate converts the rotational motion into the linear sliding motion of a vertical sliding block via a swing arm. When the sliding block slides upward, it causes the sealing plate to rise, thereby opening the inlet filter layer and allowing water samples to enter; conversely, it closes the inlet. Simultaneously, the movement of the sliding block also synchronously controls the opening and closing of the drain hole through a linkage structure, achieving coordinated control of water inlet and drainage, ensuring precise and orderly water circuit switching.

[0014] Preferably, the linkage structure includes a connecting rod, a movable frame, a closing plate, and a horizontal slider. One end of the connecting rod is movably connected to the right end of the vertical sliding block in a groove. The connecting rod is slidably engaged with the inner side of the movable frame. The bottom of the movable frame is movably connected to the closing plate. The closing plate is fixed to the left end of the horizontal slider, and the horizontal slider is slidably engaged with the inner side of the drain hole. When the vertical sliding block and the sealing plate slide upward to open the filter layer at the water inlet end, the closing plate slides towards the inner left end of the drain hole, so that the drain hole is in a sealed state.

[0015] By adopting the above technical solution, the interlocking function of water inlet and drainage is specifically realized. When the vertical sliding block rises to open the water inlet, the connecting rod moves within the groove and pushes the movable frame, which in turn drives the closing plate and the horizontal slider to slide to the left, closing the drain hole. In this way, during the water inlet measurement stage, the water sample will not leak from the drain hole, ensuring that the water sample can smoothly enter the water storage and discharge mechanism. Conversely, when the sliding block descends to close the water inlet, the linkage structure moves in the opposite direction, opening the drain hole and discharging the residual water in the water inlet filter connector. This interlocking design avoids logical confusion and water waste during water circuit switching.

[0016] Preferably, the connection slope between the water inlet filter connector and the drain hole is inclined to discharge water from inside the water inlet filter connector, and a sealed cavity is provided at the upper part of the inside of the water inlet filter connector.

[0017] By adopting the above technical solution, the sloping surface design utilizes gravity, allowing water remaining inside the inlet filter connector to flow more thoroughly and quickly to the drain hole during the drainage stage, effectively preventing water accumulation. The sealed cavity at the upper part provides installation space and a dry-wet separation working environment for moving parts such as the linkage structure, protecting the mechanical structure from water immersion and improving the reliability and service life of the device.

[0018] Preferably, a sealing and fixing rubber plug is provided at the top center of the water storage and discharge mechanism. The sensor fixing and connection mechanism includes a protective frame, a fitting protrusion, a locking screw, a sensor, a locking seat, a fitting plate, and a locking screw. The protective frame is fixed to the bottom of the fitting protrusion, and the fitting protrusion is engaged with the inner side of the snap-fit ​​structure. A locking seat is provided in the middle of the protective frame. The sensor passes through the middle of the locking seat, and the top of the sensor is tightly fitted with the upper end surface of the protective frame. The middle of the locking screw is threadedly engaged with the locking seat, and the top of the locking screw is fitted with the protective frame. The bottom sensing head of the sensor passes through the middle of the sealing and fixing rubber plug and extends into the inner side of the water storage and discharge mechanism. The protective frame is fixed to the right end of the fitting plate. The fitting plate is embedded in the top of the water inlet filter connector and is locked and fixed to the top of the water inlet filter connector by a locking screw.

[0019] By adopting the above technical solution, efficient sealing and stable installation of the sensor are achieved. First, initial positioning is achieved through the quick insertion of the interlocking protrusion and snap-fit ​​structure. Then, the locking screw secures the interlocking plate to the water inlet filter connector, achieving double fixation and ensuring the sensor assembly remains stable during long-term operation. The sealing rubber plug tightly wraps around the sensor's sensing head, preventing water sample leakage from installation gaps and isolating interference between different sensors. The engagement of the locking screw and locking seat further presses the sensor firmly onto the protective frame. The entire installation structure is stable, reliable, and exhibits excellent sealing performance.

[0020] Preferably, the protective frame, the top of the water storage and discharge mechanism, and the upper right end of the water inlet filter connector form a sealed structure.

[0021] By adopting the above technical solution, the overall sealing of the entire sensor assembly installation area is ensured. The protective frame, as a whole protective cover, is tightly integrated with the water storage and discharge mechanism below and the water inlet filter connector on the side, forming a closed space. This effectively prevents external dust, moisture, and other impurities from entering the internal circuitry or connection parts, while also preventing accidental splashing of internal water samples, thus ensuring electrical safety and the purity of the monitoring environment.

[0022] Preferably, the buckle structure includes a fitting seat, a movable groove, and an elastic locking block. The bottom of the fitting seat is fixed to the water storage and discharge mechanism. The cross-section of the fitting seat is U-shaped, and the fitting protrusion is embedded in the inner side of the fitting seat and engages with the elastic locking block. Movable grooves are provided at both ends of the inner side of the fitting seat. An elastic locking block is provided on the inner side of each of the two sets of movable grooves. The bottom of the elastic locking block is fixed to the fitting seat.

[0023] By adopting the above technical solution, a simple and reliable quick assembly / disassembly structure is provided. The U-shaped fitting seat provides precise guidance and accommodation space for the fitting protrusion. When the fitting protrusion is inserted, it compresses the elastic blocks on both sides. After insertion, the elastic blocks reset under their own elastic force, locking the fitting protrusion. When disassembly is required, simply pull it out forcefully to deform the blocks and make room. This structure allows for sensor assembly / disassembly without tools, greatly facilitating on-site maintenance.

[0024] Preferably, the locking screw block, sensor, and locking seat constitute a positioning structure, and multiple sets of positioning structures are provided, arranged parallel to each other along the upper horizontal direction of the protective frame.

[0025] By adopting the above technical solution, the device's ability to support parallel monitoring by multiple sensors was clarified. By arranging multiple sets of positioning structures consisting of locking screws, sensors, and locking seats in parallel on the protective frame, multiple sensors of different types (such as pH, turbidity, dissolved oxygen, etc.) can be installed simultaneously on the same water supply device. These sensors can simultaneously monitor the same water sample flowing through the water storage and discharge mechanism, achieving true multi-parameter synchronous online monitoring and greatly improving the efficiency and comprehensiveness of water quality monitoring.

[0026] In summary, this application includes at least one of the following beneficial technical effects for a water supply device supporting water quality monitoring by multiple sensors: 1. By employing a snap-fit ​​structure and a quick-connecting engagement with interlocking protrusions, the sensor fixing connection mechanism achieves initial and rapid positioning and locking on the water storage and discharge mechanism. Simultaneously, the secondary locking of the interlocking plate and locking screw, along with the overall sealing design of the protective frame and surrounding components, ensures both convenient sensor assembly and disassembly, and guarantees long-term structural stability and overall sealing. The use of sealing rubber plugs ensures reliable point-to-point sealing between the sensor head and the measuring chamber, effectively eliminating the risk of leakage. This simplifies and expedites daily sensor calibration, replacement, and maintenance, significantly reducing system downtime. 2. Through the precise coordination of the opening and closing conveying mechanism and the linkage structure, mechanical interlock control of water inlet and outlet is achieved. When the sealing plate rises to open the filter layer at the inlet for water sample injection, the linkage structure synchronously drives the closing plate to seal the outlet hole. The water sample smoothly enters the water storage and discharge mechanism through the overflow hole and stays there briefly, providing the sensor with an ideal measurement environment that is static, bubble-free, and free from flow interference. After the measurement is completed, the residual water is actively drained through the miniature discharge valve, effectively preventing cross-contamination between new and old water samples. This refined water circuit control ensures that each measurement is performed under consistent and stable conditions, significantly improving the accuracy and repeatability of the monitoring data. 3. By horizontally aligning multiple sets of independent positioning structures consisting of locking screws, sensors, and locking seats on the protective frame, this device can simultaneously and securely install multiple different types of water quality sensors (such as pH, dissolved oxygen, turbidity, conductivity, etc.). These sensors can simultaneously measure the same water sample flowing through the same water storage and discharge mechanism, achieving true multi-parameter synchronous online monitoring. This not only significantly saves installation space and improves system integration, but more importantly, it ensures the consistency of various parameter data in time and space, providing more valuable correlation data for comprehensive water quality assessment. 4. The inlet filter layer at the inlet effectively intercepts large suspended particles and impurities in the water sample, preventing them from entering the measurement chamber and damaging the sensor probe or affecting optical measurements. Simultaneously, when the opening and closing conveyor mechanism operates and the sealing plate descends to close the inlet, the linkage structure opens the drain hole. At this time, the water flow can backwash the inlet filter layer, flushing out the trapped impurities through the drain hole. This design cleverly utilizes the interval between each measurement cycle to achieve automatic backwashing of the filter layer, effectively preventing filter clogging, extending the filter cleaning cycle, and reducing the workload of manual maintenance. 5. By placing the water storage and discharge mechanism inside the water supply pipe and forming an L-shaped structure with the inlet filter connector and sensor fixing connection mechanism, the entire device has a compact layout and high space utilization. All moving parts are enclosed in the sealed cavity at the upper end of the inlet filter connector, achieving dry and wet separation from the water circuit, which greatly improves the reliability and service life of the mechanical structure. The inclined drainage hole connection slope design ensures thorough drainage and avoids water accumulation. Overall, the device has an ingenious structural design, stable and reliable operation, and can adapt to various online water quality monitoring application scenarios. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0028] Figure 2 This is a three-dimensional structural diagram of the sensor assembly in Embodiment 1 of the present invention.

[0029] Figure 3 This is a schematic cross-sectional view of the sensor assembly in Embodiment 1 of the present invention.

[0030] Figure 4 In Embodiment 1 of the present invention Figure 3 A magnified structural diagram at point A.

[0031] Figure 5 This is a cross-sectional structural diagram of the opening and closing conveying mechanism in Embodiment 1 of the present invention.

[0032] Figure 6 This is a schematic cross-sectional view of the linkage structure in Embodiment 1 of the present invention.

[0033] Figure 7 This is a cross-sectional structural diagram of the sensor fixing connection mechanism in Embodiment 1 of the present invention.

[0034] Figure 8 This is a cross-sectional schematic diagram of the snap-fit ​​structure in Embodiment 1 of the present invention.

[0035] Figure 9 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention.

[0036] In the diagram: Base-1, Water supply cylinder-2, Delivery pump-3, Diverter pipe-4, Water supply pipe-5, Sensor assembly-6, Inlet filter connector-61, Opening and closing conveying mechanism-62, Water storage and discharge mechanism-63, Sensor fixing connection mechanism-64, Miniature discharge valve-65, Inlet filter layer-66, Drain hole-67, Protective protrusion plate-671, Buckle structure-68, Overflow hole-69; Sealing and fixing rubber plug-631, fixing plate-621, servo motor-622, movable shaft-623, bevel gear set-624, swing plate-625, swing arm-626, vertical sliding block-627, sealing plate-628, linkage structure-629; Linkage rod - 6291, movable frame - 6292, closing plate - 6293, horizontal slider - 6294; Protective frame-641, mating protrusion-642, locking screw-643, sensor-644, locking seat-645, mating plate-646, locking screw-647; Fitting seat-681, movable slot-682, elastic locking block-683. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1 -Appendix Figure 9 This application will be described in further detail below.

[0038] Example 1: A water supply device for supporting water quality monitoring using multiple sensors, referring to... Figures 1-8The system includes a base 1, a water supply cylinder 2, a delivery pump 3, a diversion pipe 4, a water supply pipe 5, and a sensor assembly 6. The base 1 is bolted to the bottom of the water supply cylinder 2. The water supply cylinder 2 is connected to the delivery pump 3 via a delivery pipe. The delivery pump 3 is connected to the bottom of the diversion pipe 4. The flange end of the water supply pipe 5 is connected to the flange end of the diversion pipe 4. Multiple sensor assemblies 6 are embedded in the top of the water supply pipe 5. Each sensor assembly 6 includes an inlet filter connector 61, an opening and closing delivery mechanism 62, a water storage and discharge mechanism 63, a sensor fixing connection mechanism 64, a miniature discharge valve 65, an inlet filter layer 66, and a drain hole 67. The inlet filter connector 61 is embedded in the top of the water supply pipe 5. The opening and closing delivery mechanism 62 is installed inside the inlet filter connector 61. The water storage and discharge mechanism 63 is fixed to the right end of the inlet filter connector 61. The sensor fixing connection mechanism 64 is installed on top of the water storage and discharge mechanism 63. A miniature discharge valve 65 is provided at the bottom of the water discharge mechanism 63. A water inlet filter layer 66 and a drain hole 67 are distributed on the lower left and lower left sides of the water inlet filter connector 61. An overflow hole 69 is provided on the right side of the water inlet filter connector 61. The overflow hole 69 is connected to the left side of the water storage and discharge mechanism 63. A protective protrusion 671 is provided at the bottom left side of the water inlet filter connector 61 at the bottom of the drain hole 67. The right side of the protective protrusion 671 is open, forming a semi-enclosed structure together with the bottom left side of the water inlet filter connector 61. This design makes the outlet of the drain hole 67 not a completely closed ring, but a channel with a directional opening. When the drain hole 67 is open, residual water flows out from inside the water inlet filter connector 61 and is smoothly discharged through the opening at the right side of the protective protrusion 671. When external debris attempts to enter, the semi-enclosed structure of the protective protrusion will block it from entering directly, but the opening at the right side ensures that the drainage function is not affected. This one-way channel design, which allows for "only outflow and not inflow, and is easy to exit but difficult to enter," serves to prevent backflow.

[0039] In some embodiments, the top of the water storage and discharge mechanism 63 is provided with a snap-fit ​​structure 68, and the bottom of the sensor fixing connection mechanism 64 is inserted into the snap-fit ​​structure 68. The water inlet filter connector 61, the water storage and discharge mechanism 63, and the sensor fixing connection mechanism 64 form an L-shaped structure. The water storage and discharge mechanism 63 is placed inside the upper end of the water supply pipe 5. The opening and closing conveying mechanism 62 includes a fixed plate 621, a servo motor 622, a movable shaft 623, a bevel gear set 624, a swing plate 625, a swing arm 626, a vertical sliding block 627, a sealing plate 628, and a linkage structure 629. The fixed plate 621 is embedded in the top of the water inlet filter connector 61. The fixed plate 621 is bolted to the top of the servo motor 622. The output end of the servo motor 622 is connected to the movable shaft 625. 3. Transmission connection: The bottom of the movable shaft 623 is movably connected to the water inlet filter connector 61. The movable shaft 623 is driven by the upper right bevel gear of the bevel gear set 624. The left bevel gear of the bevel gear set 624 is driven by the upper end of the swing plate 625 via a rotating shaft. The swing plate 625 is hinged to the upper end of the swing arm 626. The swing arm 626 is movably connected to the upper end of the vertical sliding block 627. The vertical sliding block 627 is slidably engaged with the inner left end of the water inlet filter connector 61. The vertical sliding block 627 is fixed to the upper end of the sealing plate 628, and the sealing plate 628 is slidably engaged with the inner side of the water inlet filter layer 66. A linkage structure 629 is provided at the lower right end of the sliding block 627. The linkage structure 629 is used to seal and open the drain hole 67.

[0040] In this application, the linkage structure 629 includes a connecting rod 6291, a movable frame 6292, a closing plate 6293, and a horizontal slider 6294. One end of the connecting rod 6291 is movably connected to the right end of the vertical sliding block 627 in a groove. The connecting rod 6291 is slidably engaged with the inner side of the movable frame 6292. The bottom of the movable frame 6292 is movably connected to the closing plate 6293. The closing plate 6293 is fixed to the left end of the horizontal slider 6294, and the horizontal slider 6294 is slidably engaged with the inner side of the drain hole 67. The vertical sliding block... 627. When the sealing plate 628 slides upward to open the water inlet filter layer 66, the closing plate 6293 slides towards the inner left end of the drain hole 67, so that the drain hole 67 is in a sealed state. The connection slope between the water inlet filter connector 61 and the drain hole 67 is inclined to discharge water from inside the water inlet filter connector 61. A sealed cavity is provided at the upper end of the inside of the water inlet filter connector 61. A sealing and fixing rubber plug 631 is provided in the middle of the top of the water storage and discharge mechanism 63. The sensor fixing and connecting mechanism 64 includes a protective frame 641. The system comprises a fitting protrusion 642, a locking screw block 643, a sensor 644, a locking seat 645, a fitting plate 646, and a locking screw 647. The protective frame 641 is fixed to the bottom of the fitting protrusion 642. The fitting protrusion 642 engages with the inner side of the snap-fit ​​structure 68. A locking seat 645 is located in the middle of the protective frame 641. The sensor 644 passes through the middle of the locking seat 645, and its top is tightly fitted to the upper surface of the protective frame 641. The middle part of the locking screw block 643 is threadedly engaged with the locking seat 645. The top of the locking swivel block 643 is in contact with the protective frame 641. The bottom sensing head of the sensor 644 passes through the middle of the sealing and fixing rubber plug 631 and extends into the inner side of the water storage and discharge mechanism 63. The protective frame 641 is fixed to the right end of the fitting plate 646. The fitting plate 646 is embedded in the top of the water inlet filter connector 61 and is locked and fixed to the top of the water inlet filter connector 61 by the locking screw 647. The protective frame 641, the top of the water storage and discharge mechanism 63, and the upper right end of the water inlet filter connector 61 form a sealing structure.

[0041] It should be noted that the buckle structure 68 includes a fitting seat 681, a movable groove 682, and an elastic locking block 683. The bottom of the fitting seat 681 is fixed to the water storage and discharge mechanism 63. The cross-section of the fitting seat 681 is U-shaped, and the fitting protrusion 642 is embedded in the inner side of the fitting seat 681 and engages with the elastic locking block 683. Movable grooves 682 are provided at both ends of the inner side of the fitting seat 681. An elastic locking block 683 is provided on the inner side of both sets of movable grooves 682. The bottom of the elastic locking block 683 is fixed to the fitting seat 681.

[0042] Base 1 and water supply cylinder 2: These serve as the physical support and water storage foundation for the entire device. Water supply cylinder 2 is used to store the raw water to be monitored or the water sample after preliminary treatment, ensuring the stability of the device during operation and preventing fluctuations in monitoring data due to vibration.

[0043] Transfer pump 3: Provides the core power for water sample flow. It draws water samples from water supply cylinder 2 and pressurizes them into diversion pipe 4 through the transfer pipeline, and is the "heart" of the active water supply system.

[0044] Diverter pipe 4 and water supply pipe 5: Diverter pipe 4 distributes the single water flow from delivery pump 3 and connects it to one or more water supply pipes 5. Water supply pipe 5 serves as the main pipe carrying sensor assembly 6, and its flange connection ensures sealing and detachability. This design allows the device to flexibly expand the number of monitoring points according to actual monitoring needs.

[0045] The inventive point of this application is a modular unit that integrates water inlet control, measurement chamber, sensor installation and drainage functions; Water inlet filter connector 61: Serves as the first barrier for water samples to enter the sensor assembly; its built-in water inlet filter layer 66 can filter out large particulate impurities in the water, protecting subsequent precision sensors and valves from blockage and damage. Opening and closing conveying mechanism 62: This is an intelligent "faucet" that controls the water sample entering the measuring chamber (water storage and discharge mechanism 63); its detailed working logic is as follows: Drive and transmission: The servo motor 622 serves as a precise power source, converting the vertical rotational motion into horizontal rotation through the movable shaft 623 and the bevel gear set 624, and then driving the swing plate 625 to swing. Motion conversion: The swing of the swing plate 625 is converted into the vertical up and down sliding of the vertical sliding block 627 within the water inlet filter connector 61 through the swing arm 626; Water inlet control: The vertical sliding block 627 drives the sealing plate 628 to move up and down; when the sealing plate 628 rises, the filter layer 66 at the water inlet end is opened, and the water sample can enter; when the sealing plate 628 falls, the water inlet is closed. Linkage structure 629: It realizes the mechanical interlock between water inlet and drainage, which is one of the ingenious designs of this embodiment; Working principle: When the vertical sliding block 627 rises (opens the water inlet), it drives the connecting rod 6291 to move; the connecting rod 6291 slides in the movable frame 6292 and pushes the movable frame, which in turn drives the closing plate 6293 and the horizontal slider 6294 to slide to the left, sealing the drain hole 67 tightly; at this time, the water sample can only enter the water storage and discharge mechanism 63 through the overflow hole 69, and will not be lost from the drain hole 67; Function: This interlocking mechanism ensures that when the device is in "measurement mode" (water inlet is open), the drain end automatically closes, ensuring that the water sample can completely fill the measurement chamber; when in "standby or flushing mode" (water inlet is closed), the drain end automatically opens to drain the residual water, preventing the water sample from stagnating and deteriorating, which would affect the next measurement result. The structural design of the water inlet filter connector 61: the connection between it and the drain hole 67 adopts an inclined slope design, which uses gravity to allow residual water to flow smoothly and thoroughly to the drain hole, avoiding water accumulation; the sealed cavity at the upper part of the interior provides a dry and clean operating environment for the above-mentioned complex linkage mechanism, protecting the mechanical structure. Water storage and discharge mechanism 63: This is the "measuring chamber" where the water sample is monitored; the water sample enters here through the overflow hole 69 and stays in it briefly, providing a static and stable measurement environment for the sensor; the miniature discharge valve 65 at the bottom is used to actively drain the water sample in the mechanism after the measurement is completed, so as to carry out the next round of monitoring or cleaning; Sensor fixing connection mechanism 64: This is the "mounting base" and "sealed bridge" between the sensor and the measurement chamber; Quick installation and sealing: Initial positioning and locking are achieved through the quick insertion of the fitting protrusion 642 and the snap-fit ​​structure 68; the protective frame 641 fits tightly with the water storage and discharge mechanism 63 below and the water inlet filter connector 61 on the side to form an overall seal; the sealing and fixing rubber plug 631 is tightly fitted on the outside of the sensing head of the sensor 644. After the sensor is installed in place, the sensing head passes through the rubber plug and extends into the measuring chamber, achieving a reliable seal between the sensor and the measuring chamber to prevent water leakage; Double stabilization: In addition to the snap-fit ​​connection, the entire sensor fixing connection mechanism 64 is further locked to the water inlet filter connector 61 by embedding the insert plate 646 and locking screw 647, ensuring that the position of the sensor will not shift under long-term operation or water flow impact. Independent sensor fixing: Each sensor 644 is independently pressed onto the protective frame 641 by a locking seat 645 and a locking screw block 643. This design ensures that the disassembly, replacement or calibration of a single sensor will not affect other sensors, making maintenance convenient. Details of the snap-fit ​​structure 68: The U-shaped structure of the fitting seat 681 provides precise guidance for the fitting protrusion 642; when the fitting protrusion is inserted, it will squeeze the elastic locking block 683 in the movable grooves 682 on both sides; after being inserted into place, the elastic locking block resets and locks the fitting protrusion from both sides to achieve a stable snap-fit ​​connection; this structure can be disassembled and assembled without tools, and is quick and reliable.

[0046] Example 2: A water supply device for supporting water quality monitoring using multiple sensors, referring to... Figure 9The locking screw block 643, sensor 644, and locking seat 645 constitute a positioning structure, and multiple sets of positioning structures are provided, which are arranged parallel to each other along the upper horizontal direction of the protective frame 641.

[0047] It should be noted that this technical feature clarifies the physical implementation of the device's "multiple sensor" monitoring capability.

[0048] Supports multi-parameter monitoring: By setting multiple independent positioning structures (i.e., multiple sets of locking screws 643 and locking seats 645) in parallel on the protective frame 641, multiple different types of sensors can be installed simultaneously, such as pH sensors, dissolved oxygen sensors, conductivity sensors, turbidity sensors, etc.; these sensors can simultaneously measure the same water sample flowing through the water storage and discharge mechanism 63, thereby acquiring multiple water quality parameters at once, which greatly improves monitoring efficiency and the comprehensiveness and comparability of data; Independence and interchangeability: Each positioning structure is independent, which means that each sensor can be disassembled and replaced individually without affecting the position and sealing of other installed sensors; this provides great convenience for flexible sensor configuration, regular calibration and fault replacement; Scalability: This modular parallel layout allows for the adjustment of the number of sensors that the device can support by simply increasing or decreasing the number of positioning structures (i.e., changing the size of the protective frame 641 and the number of rows of positioning structures) without altering the main structure, thus providing excellent design scalability.

[0049] The implementation principle of this application embodiment is as follows: When no monitoring is being performed, the device is in standby mode. At this time, the servo motor 622 of the opening and closing conveying mechanism 62 is not started, and the vertical sliding block 627 is in the lower limit position. The sealing plate 628 connected to it seals the filter layer 66 at the water inlet, preventing water samples from entering. At the same time, the linkage structure 629 linked with the vertical sliding block 627 is in the reverse position, and the closing plate 6293 is in the right limit position under the action of the horizontal slider 6294. The drain hole 67 is in the open state. The miniature discharge valve 65 at the bottom of the water storage and discharge mechanism 63 is usually in the closed state, but if there is residual water sample inside, it has been emptied through the previous discharge cycle. When the monitoring program is started, the control system sends a command to the servo motor 622; the servo motor 622 starts, and its output shaft drives the movable shaft 623 to rotate; the movable shaft 623 changes the direction of rotation through the bevel gear set 624 and transmits it to the swing plate 625; the swing plate 625 starts to swing, and through the swing arm 626 hinged to it, drives the vertical sliding block 627 to slide upward in the internal groove of the water inlet filter connector 61; When the vertical slider 627 rises, two key actions occur: Open the water inlet: The vertical sliding block 627 drives the sealing plate 628 to rise synchronously, gradually opening the water inlet filter layer 66; the water sample in the water supply cylinder 2, under the pressure of the delivery pump 3, passes through the water supply pipe 5, and after filtering out large particles of impurities through the opened water inlet filter layer 66, enters the internal cavity of the water inlet filter connector 61. Drainage shut-off: As the vertical sliding block 627 rises, the linkage structure 629 connected to its lower right end begins to operate; the connecting rod 6291 slides in the groove of the vertical sliding block 627 and pushes the movable frame 6292, which in turn drives the closing plate 6293 and the horizontal slider 6294 to slide to the left, sealing the drain hole 67 tightly; this mechanical interlocking action ensures that the water sample entering from the inlet filter layer 66 will not be directly lost from the drain hole 67; As water samples continue to enter, the liquid level inside the inlet filter connection 61 gradually rises; since the drain hole 67 has been sealed, the water sample can only flow to the right through the overflow hole 69 into the connected water storage and discharge mechanism 63. Water sample is continuously injected into the water storage and discharge mechanism 63 through the overflow hole 69 until its internal chamber is completely filled. The design of the overflow hole 69 plays a key role here: it not only serves as a channel for water sample, but also plays a role in venting air and maintaining a constant water level. When the water storage and discharge mechanism 63 is full, excess water sample or air accumulated inside will return or be discharged through the overflow hole 69, ensuring that the measurement chamber is always full of water sample and free of air bubbles, providing a stable and static measurement environment for the sensor. At this time, various sensors 644 (such as pH meter, dissolved oxygen meter, turbidity meter, etc.) that are pre-installed through the sensor fixing connection mechanism 64 have their sensing heads inserted into the water storage and discharge mechanism 63 through the sealing and fixing rubber plug 631, making full contact with the water sample; the sensors begin to collect data and monitor various water quality parameters in real time; throughout the measurement phase, the servo motor 622 maintains its position, the sealing plate 628 remains open, the closing plate 6293 remains closed, the miniature discharge valve 65 remains closed, and the device maintains a static measurement state to ensure the stability and accuracy of data collection; After the measurement is completed, the control system issues a command, and the servo motor 622 rotates in the opposite direction; through the transmission mechanism, it drives the vertical sliding block 627 to slide downward, producing an action opposite to that of the injection stage. Shutting off the water inlet: The vertical sliding block 627 drives the sealing plate 628 to descend, re-sealing the water inlet filter layer 66 and cutting off the water sample source; Open drainage: As the vertical sliding block 627 descends, the linkage structure 629 pulls the closing plate 6293 and the horizontal slider 6294 to slide to the right, opening the drainage hole 67; Discharging residual water: The control system simultaneously opens the miniature discharge valve 65 at the bottom of the water storage and discharge mechanism 63; under the action of gravity, the water sample in the water storage and discharge mechanism 63 is discharged through the miniature discharge valve 65 (it can be discharged back to the water supply cylinder 2 or a special waste liquid collection container); at the same time, the water sample remaining in the water inlet filter connection 61 is also discharged through the inclined connection slope and the opened drain hole 67; this two-way discharge design ensures that there is no water accumulation in the measuring chamber and the water inlet pipe, effectively preventing cross-contamination between different batches of water samples; During the drainage process, when the drain hole 67 is open and there is still residual water in the inlet filter layer 66, the reverse flow of water will have a certain backwashing effect on the inlet filter layer 66, washing away the impurities trapped on the outside of the filter layer and discharging them through the drain hole 67; this process helps to extend the effective service time of the filter layer and reduce the frequency of manual cleaning. After all the residual water has been drained, the control system closes the miniature discharge valve 65, and the device returns to the initial standby state, waiting for the next monitoring command to be triggered. Throughout the entire working cycle, multiple sets of sensors 644 mounted on the protective frame 641 always operate synchronously. Since the sensing heads of all sensors 644 extend into the same measuring chamber of the water storage and discharge mechanism 63, they monitor the same water sample at the same time and spatial location, ensuring the consistency of multi-parameter data in time and space. Each set of sensors is fixed by an independent locking screw block 643 and locking seat 645. When a sensor needs to be calibrated or replaced, it can be disassembled individually without interfering with the installation status of other sensors or damaging the overall seal, ensuring the convenience of system maintenance and the continuity of operation.

[0050] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water supply device for supporting water quality monitoring using multiple sensors, characterized in that: The system includes a base (1), a water supply cylinder (2), a delivery pump (3), a diversion pipe (4), a water supply pipe (5), and a sensor assembly (6). The base (1) is bolted to the bottom of the water supply cylinder (2). The water supply cylinder (2) is connected to the delivery pump (3) via a delivery pipe. The delivery pump (3) is connected to the bottom of the diversion pipe (4). The flange end of the water supply pipe (5) is connected to the flange end of the diversion pipe (4). Multiple sets of the sensor assembly (6) are embedded in the top of the water supply pipe (5). The sensor assembly (6) includes an inlet filter connector (61), an opening and closing delivery mechanism (62), a water storage and discharge mechanism (63), and a sensor fixing connection mechanism (64). 64) Miniature drain valve (65), inlet filter layer (66), drain hole (67), the inlet filter connector (61) is embedded in the top of the water supply pipe (5), the inlet filter connector (61) is equipped with an opening and closing conveying mechanism (62), the right end of the inlet filter connector (61) is fixed with a water storage and discharge mechanism (63), the sensor fixing connection mechanism (64) is installed on the top of the water storage and discharge mechanism (63), the bottom of the water storage and discharge mechanism (63) is provided with a miniature drain valve (65), the lower left end and the lower left side of the inlet filter connector (61) are provided with an inlet filter layer (66) and a drain hole (67).

2. A water supply device for supporting water quality monitoring using multiple sensors according to claim 1, characterized in that: The right end of the water inlet filter connector (61) is provided with an overflow hole (69), which is connected to the left end of the water storage and discharge mechanism (63).

3. A water supply device for supporting water quality monitoring using multiple sensors according to claim 1, characterized in that: The top of the water storage and discharge mechanism (63) is provided with a snap-fit ​​structure (68), and the bottom of the sensor fixing connection mechanism (64) is inserted into the snap-fit ​​structure (68). The water inlet filter connector (61), the water storage and discharge mechanism (63), and the sensor fixing connection mechanism (64) form an L-shaped structure. The water storage and discharge mechanism (63) is placed inside the upper end of the water supply pipe (5).

4. A water supply device for supporting water quality monitoring using multiple sensors according to claim 1, characterized in that: The opening and closing conveying mechanism (62) includes a fixed plate (621), a servo motor (622), a movable shaft (623), a bevel gear set (624), a swing plate (625), a swing arm (626), a vertical sliding block (627), a sealing plate (628), and a linkage structure (629). The fixed plate (621) is embedded in the top of the water inlet filter connector (61). The fixed plate (621) is bolted to the top of the servo motor (622). The output end of the servo motor (622) is connected to the movable shaft (623) for transmission. The bottom of the movable shaft (623) is movably connected to the water inlet filter connector (61). The movable shaft (623) is connected to the upper right bevel gear of the bevel gear set (624). In the transmission connection, the left bevel gear of the bevel gear set (624) is connected to the upper end of the swing plate (625) by a rotating shaft. The swing plate (625) is hinged to the upper end of the swing arm (626). The swing arm (626) is movably connected to the upper end of the vertical sliding block (627). The vertical sliding block (627) is slidably engaged with the inner left end of the water inlet filter connector (61). The vertical sliding block (627) is fixed to the upper end of the sealing plate (628), and the sealing plate (628) is slidably engaged with the inner side of the water inlet filter layer (66). The lower right end of the sliding block (627) is provided with a linkage structure (629). The linkage structure (629) is used to seal and open the drain hole (67).

5. A water supply device for supporting water quality monitoring using multiple sensors according to claim 4, characterized in that: The linkage structure (629) includes a connecting rod (6291), a movable frame (6292), a closing plate (6293), and a horizontal slider (6294). One end of the connecting rod (6291) is movably connected to the right end of the vertical sliding block (627) in the sliding groove. The connecting rod (6291) is slidably engaged with the inner side of the movable frame (6292). The bottom of the movable frame (6292) is movably connected with the closing plate (6293). The closing plate (6293) is fixed to the left end of the horizontal slider (6294), and the horizontal slider (6294) is slidably engaged with the inner side of the drain hole (67). When the vertical sliding block (627) and the sealing plate (628) slide upward to open the water inlet filter layer (66), the closing plate (6293) slides to the inner left end of the drain hole (67) to keep the drain hole (67) in a sealed state.

6. A water supply device for supporting water quality monitoring using multiple sensors according to claim 1, characterized in that: The connection slope between the water inlet filter connector (61) and the drain hole (67) is inclined to discharge water inside the water inlet filter connector (61). A sealed cavity is provided at the upper part of the inside of the water inlet filter connector (61).

7. A water supply device for supporting water quality monitoring using multiple sensors according to claim 3, characterized in that: A sealing and fixing rubber plug (631) is provided in the middle of the top of the water storage and discharge mechanism (63). The sensor fixing and connecting mechanism (64) includes a protective frame (641), a fitting protrusion (642), a locking screw (643), a sensor (644), a locking seat (645), a fitting plate (646), and a locking screw (647). The protective frame (641) is fixed to the bottom of the fitting protrusion (642). The fitting protrusion (642) is engaged with the inner side of the snap-fit ​​structure (68). A locking seat (645) is provided in the middle of the protective frame (641). The sensor (644) passes through the middle of the locking seat (645). The top of the sensor (644) is tightly fitted to the upper surface of the protective frame (641). The middle part of the locking screw block (643) is threadedly engaged with the locking seat (645), and the top of the locking screw block (643) is fitted to the protective frame (641). The bottom sensing head of the sensor (644) passes through the middle of the sealing and fixing rubber plug (631) and extends into the inner side of the water storage and discharge mechanism (63). The protective frame (641) is fixed to the right end of the interlocking plate (646). The interlocking plate (646) is embedded in the top of the water inlet filter connector (61) and is locked and fixed to the top of the water inlet filter connector (61) by a locking screw (647).

8. A water supply device for supporting water quality monitoring using multiple sensors according to claim 7, characterized in that: The protective frame (641) forms a sealed structure with the top of the water storage and discharge mechanism (63) and the upper right end of the water inlet filter connector (61).

9. A water supply device for supporting water quality monitoring using multiple sensors according to claim 7, characterized in that: The buckle structure (68) includes a fitting seat (681), a movable groove (682), and an elastic locking block (683). The bottom of the fitting seat (681) is fixed to the water storage and discharge mechanism (63). The cross-section of the fitting seat (681) is U-shaped, and the fitting protrusion (642) is embedded in the inner side of the fitting seat (681) and engages with the elastic locking block (683). Movable grooves (682) are provided at both ends of the inner side of the fitting seat (681). An elastic locking block (683) is provided on the inner side of both sets of movable grooves (682). The bottom of the elastic locking block (683) is fixed to the fitting seat (681).

10. A water supply device for supporting water quality monitoring using multiple sensors according to claim 7, characterized in that: The locking screw block (643), sensor (644), and locking seat (645) constitute a positioning structure, and multiple sets of positioning structures are provided, which are arranged in parallel along the upper horizontal direction of the protective frame (641).

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