Water quality monitoring equipment and water quality monitoring method

Abstract

The invention discloses water quality monitoring equipment and a water quality monitoring method.The monitoring equipment comprises a box body with the front side being an opening and a transparent cover plate rotationally installed on the front side of the box body through hinges, a U-shaped handle is fixedly connected to the top of the box body, and a clear water tank is fixedly installed on the inner wall of the right side of the box body. By arranging a series of structures, a water source can be directly extracted, sampled and detected conveniently, a water sample can be filtered to intercept solid slag flocculent impurities and the like, the impurities can be automatically prevented from being statically accumulated and blocked during use, the solid slag impurities are stably prevented from flowing backwards to enter a detection position, and the use stability is improved; after the device is used, the round filter plate can be integrally and automatically cleaned and dredged, the sampling and extracting flow channel is subjected to back-flushing cleaning and dredging and back-flushing deslagging work, and workers do not need to independently move out for cleaning, dredging and deslagging work, so that the automation degree and convenience of cleaning, deslagging and dredging are improved; in addition, after use, the device can be integrally carried by a worker to detect multiple water sources, so that the use flexibility is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality monitoring, and in particular to a water quality monitoring device and a water quality monitoring method. Background Art

[0002] Water quality monitoring plays an important role in maintaining the health of the water environment. Water quality monitoring includes regular or irregular testing of water parameters such as pH value, turbidity and temperature. The monitoring scope is very wide, including unpolluted and polluted natural water (rivers, lakes, seas and groundwater) and various industrial drainage. When sampling and monitoring water sources, it is inevitable that there are impurities such as solid residues and floccules in the water body, which are easy to surround and cover the outside of the detection probe and affect the detection phenomenon;

[0003] In this regard, it can be learned from the search report of the novelty search agency that the invention application number 202410028396.4 discloses a water quality monitoring device and a monitoring method, wherein the monitoring device includes a monitoring water tank, in which a water quality sensor is provided, and a filter box is fixedly connected to the water inlet of the monitoring water tank; a bracket is arranged above the filter box; a first filter component and a second filter component are slidably mounted on the bracket, and two groups of filter components are arranged on the filter box at the water inlet of the monitoring water tank. The filter component adopts a dense mesh filter structure, which can filter out filamentous impurities, thereby improving the problem that the filamentous impurities in the water body affect the water quality sensor and are not easy to clean. The two filter components move alternately up and down. During the water quality monitoring process, there is always at least one filter component to filter impurities in the water body, which not only ensures that all water bodies can be filtered, but also improves the problem of increased water pressure in the dense mesh structure during the filtering of filamentous impurities, and the use effect is better.

[0004] The above technology discloses a water quality monitoring device and a monitoring method, which can alternately filter and intercept impurities such as solid residue and flocculent in the water by setting two filtering components, thereby reducing the phenomenon that impurities cover and surround the detection probe and affect the detection during detection. However, this method has the following problems when used;

[0005] 1. The two filter components move up and down alternately, so that personnel can perform alternating cleaning work without stopping the machine. However, impurities will inevitably gradually move to the left during the alternating movement. For example, when the filter component on the right rises, the impurities move to the left to the position of the filter component on the left. When the filter component on the left rises to remove the obstruction, the impurities will continue to enter the detection probe to the left. The impurities will still cover and surround the detection probe, which has great use problems. It is difficult to prevent the static accumulation of impurities while stably preventing solid slag impurities from entering the detection probe; 2. After the detection, the water cannot be drained back and the water inlet channel and the filter component cannot be flushed and unblocked. Personnel need to remove the solid slag and other impurities filtered inside and unblock the filter component separately, and the degree of automation is not ideal; 3. The way of fixing the whole on one side of the sink for application is not convenient for personnel to carry and flexibly detect and utilize multiple water sources, and the flexibility is low;

[0006] In order to solve the problems that it is not possible to stably prevent solid slag impurities from entering the detection probe while preventing static accumulation and blocking of impurities, it is not possible to return water after detection and automatically flush and clear the water entry channel and filter components to remove slag, and it is inconvenient for personnel to carry out flexible detection and utilization of multiple water sources. Therefore, we proposed a water quality monitoring device and a water quality monitoring method. Summary of the invention

[0007] The water quality monitoring equipment proposed in the present invention solves the problems of being unable to stably prevent solid slag impurities from entering the detection probe while preventing static accumulation and blocking of impurities, being unable to return water after detection and automatically flush and clear the water entry channel and filter components to remove slag, and being inconvenient for personnel to carry and conduct flexible detection and utilization of multiple water sources.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water quality monitoring device, comprising a box body with an opening on the front side and a transparent cover plate rotatably installed on the front side thereof by hinges, a U-shaped handle fixedly connected to the top of the box body, a clean water tank fixedly installed on the right inner wall of the box body, a cylinder fixedly installed on the bottom inner wall of the box body, an L-shaped support plate fixedly connected to the top of the cylinder, a detection box fixedly connected to the top of the L-shaped support plate, a water quality sensor installed in the detection box, a PLC controller and a display fixedly installed on the left side of the detection box, the display and the water quality sensor are electrically connected to the PLC controller, the water quality sensor comprises a temperature sensor, a pH sensor, a dissolved oxygen sensor and a turbidity sensor; the water quality sensor is used to respectively detect the temperature, pH, dissolved oxygen and turbidity value of the water when the water to be detected enters the detection box, and transmit the corresponding values ​​to the PLC controller, the PLC controller controls the display to display the corresponding data to realize water quality detection;

[0009] A two-way water pump electrically connected to the PLC controller is fixedly installed on the bottom inner wall of the box body, a first L-shaped pipe is connected and fixed at the right end of the two-way water pump, a first switching water-passing component is connected and fixed between the left end of the two-way water pump and the right bottom of the cylinder, a circular filter plate is provided with a sealing rotating sleeve in the cylinder, and a hydraulic rotary drive water-passing component is fixedly installed on the outer side of the circular filter plate, the first switching water-passing component and the top of the first L-shaped pipe are both connected and fixed to the bottom of the hydraulic rotary drive water-passing component, the top of the hydraulic rotary drive water-passing component is connected and fixed to the right bottom of the detection box and the bottom of the clean water tank with the same second switching water-passing component, the left top of the hydraulic rotary drive water-passing component is connected and fixed to a Z-shaped pipe with a blocking structure at the left end, the circular filter plate sealing rotating sleeve is arranged on the Z-shaped pipe, and a brushing and recoil dredging component for brushing and recoil cleaning of the circular filter plate is installed on the Z-shaped pipe, and the right inner wall and the bottom inner wall of the detection box are fixedly connected with water The level sensor, the water level sensor, the first switching water-flow component and the second switching water-flow component are all electrically connected to the PLC controller; the first switching water-flow component is used to extract external water source through the cylinder when the two-way water pump is started in the forward direction, and is also used to be controlled by the PLC controller to switch the water outlet direction when the two-way water pump is started in the reverse direction for backflow; the second switching water-flow component is used to supply water to the detection box when the two-way water pump is started in the forward direction, and is also used to backflow and discharge the water in the detection box when the two-way water pump is started in the reverse direction, and is used to switch to extracting clean water from the clean water tank for backflow and flushing when there is no water in the detection box; the hydraulic rotary drive water-flow component is used to drive the circular filter plate to rotate when the two-way water pump is started, and the set circular filter plate is used to filter and intercept solid residues in the water when extracting external water, and the brushing and recoil dredging component is used to brush and clean the left side of the rotating circular filter plate, and is used to automatically backwash and clean the rotating circular filter plate during backflow;

[0010] The bottom of the cylinder is connected and fixed with a water inlet, return discharge and slag cleaning component; the water inlet, return discharge and slag cleaning component is used to extract external water source when the inside of the cylinder is extracted, as a sampling extraction flow channel, and is used to automatically discharge solid slag and impurities in the extraction flow channel during return flushing cleaning, forming an integrated cleaning operation.

[0011] Preferably, the first switching water-flow component includes a first solenoid valve, a second L-shaped tube and a second solenoid valve, the right side of the second L-shaped tube is connected and fixed to the left end of the two-way water pump, the first solenoid valve is connected and fixed between the bottom right side of the cylinder and the left end of the second L-shaped tube, the second solenoid valve is connected and fixed at the top end of the second L-shaped tube, and the first solenoid valve and the second solenoid valve are both electrically connected to the PLC controller.

[0012] Preferably, the hydraulic rotary drive water-passing assembly comprises an outer gear ring, a gear, a rotating shaft, a first box body, a first drum, a plurality of first water wheel blades and two first one-way bearings, the outer gear ring is fixedly sleeved on the outer side of the circular filter plate, the rotating shaft is rotatably installed on the top of the drum, the gear is fixedly connected to the left end of the rotating shaft and meshes with the top of the outer gear ring, the first drum is unidirectionally rotatably sleeved on the rotating shaft through two first one-way bearings, the first box body is sealingly rotatably sleeved on the first drum, a plurality of first water wheel blades are fixedly connected to the outer side of the first drum in an annular shape with equal intervals and are located in the first box body, the right end of the Z-shaped tube is located behind the rotating shaft and is connected and fixed to the left top of the first box body, the top end of the second solenoid valve is connected and fixed to the rear side of the bottom end of the first box body, and is vertically aligned with the first water wheel blade located on the rear side;

[0013] The hydraulic rotary drive water-flowing component also includes a second box body, a second rotating drum, a plurality of second water wheel blades and two second one-way bearings. The second rotating drum is unidirectionally rotatably sleeved on the rotating shaft through two second one-way bearings. The second box body is sealingly rotatably sleeved on the second rotating drum. The plurality of second water wheel blades are fixedly connected to the outside of the second rotating drum in a ring-shaped shape with equal intervals and are located in the second box body. The second one-way bearing is arranged in the opposite direction to the first one-way bearing. The top end of the first L-shaped tube is connected and fixed to the bottom front side of the second box body and is vertically aligned with the second water wheel blade located on the front side.

[0014] Preferably, the second switching water-flowing component includes a three-way pipe, a third solenoid valve and a fourth solenoid valve. The bottom end of the three-way pipe is connected and fixed to the top of the second box body, the third solenoid valve is connected and fixed between the bottom right side of the detection box and the left end of the three-way pipe, and the fourth solenoid valve is connected and fixed between the bottom of the clean water tank and the top of the three-way pipe. The third solenoid valve and the fourth solenoid valve are both electrically connected to the PLC controller.

[0015] Preferably, the brush-cleaning recoil dredging assembly includes a cleaning brush, a vertical pipe with a sealing structure at the top and a plurality of recoil pipe heads. The cleaning brush is fixedly connected to the bottom left side of the Z-shaped pipe and is in movably contact with the left bottom side of the circular filter plate. The vertical pipe is connected and fixed to the top left side of the Z-shaped pipe. A plurality of recoil pipe heads are connected and fixed to the left side of the vertical pipe at equal intervals. The recoil pipe head is located on the upper right side of the circular filter plate and cooperates with the circular filter plate.

[0016] Preferably, the water inlet and return discharge slag cleaning assembly includes a conical cover, an internal threaded joint, an external threaded sleeve, a hose and a tube storage box. The left inner wall of the cylinder is set as an inclined surface, the conical cover is connected and fixed to the left side of the bottom of the cylinder, the internal threaded joint is connected and fixed to the bottom of the conical cover, the external threaded sleeve is threadedly screwed into the internal threaded joint, the hose is located below the box body and is connected and fixed to the bottom end of the external threaded sleeve, the tube storage box is fixedly connected to the left inner wall of the box body, and is used to store the hose after use.

[0017] Preferably, a battery is fixedly installed on the left inner wall of the box, an inverter is fixed and electrically connected to the right side of the battery, and the display, PLC controller, bidirectional water pump, first solenoid valve, second solenoid valve, third solenoid valve and fourth solenoid valve are all electrically connected to the inverter.

[0018] Preferably, two first sealed bearings are provided in the fixed sleeve in the cylinder, the inner ring of the first sealed bearing is fixedly mounted on the outer side of the circular filter plate, the outer gear ring is located between the two first sealed bearings, and the PLC controller is a networked programming controller with a built-in communication module. When the PLC controller receives the corresponding water quality value, it also transmits the water quality data to the external server terminal through the communication module for recording and storage, so that personnel can compare the water quality data of different time periods later.

[0019] Preferably, the top of the box body can also be set to an opening, and a hidden solar energy storage component is installed in the open state, the hidden solar energy storage component includes a box-shaped cover, a solar panel, a knob-type bolt and a limit support block, a same hinge is fixedly connected between the left side of the box-shaped cover and the left top of the box body, the box-shaped cover is rotatably installed on the top of the box body through the hinge, the U-shaped handle is fixedly connected to the top of the box-shaped cover, the solar panel is fixedly installed on the top inner wall of the box-shaped cover, and is electrically connected to the battery through a flexible cable, a threaded groove is opened on the right side of the top of the box body, the knob-type bolt is screwed into the threaded groove, the box-shaped cover is threadedly sleeved on the knob-type bolt, and the limit support block is fixedly installed on the left top of the box body.

[0020] The present invention also proposes a water quality monitoring method of a water quality monitoring device, comprising the following steps:

[0021] S1: By starting the bidirectional water pump in the forward direction, the water source to be tested is extracted through the second L-shaped tube, the first solenoid valve, the cylinder, the conical cover, the internal thread joint, the external thread sleeve and the hose in sequence, and the silky impurities and solid residues in the water source are filtered out by the circular filter plate. The extracted water source is supplied to the detection box through the first L-shaped tube, the second box body, the three-way pipe and the third solenoid valve in sequence;

[0022] S2: Monitor and collect water quality information of the water body through water quality sensors, obtain current water quality data, and pass it to the PLC controller;

[0023] S3: The PLC controller controls the display to display the corresponding data for personnel to view and analyze, thereby realizing water quality detection. The PLC controller also transmits the water quality data to the external server terminal through the communication module for recording and preservation, so that personnel can compare the water quality data of different time periods later.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The water quality monitoring device described in the present invention can directly extract samples from water sources for testing, and filter water samples to intercept solid residue, filamentous impurities such as flocculent impurities, by cooperating with the provided cylinder, circular filter plate, bidirectional water pump, first L-shaped pipe, water inlet and return discharge slag removal component, first switching water flow component and second switching water flow component;

[0026] 2. The water quality monitoring device described in the present invention can automatically drive the circular filter plate to rotate and brush its left side during sampling through the cooperation of the provided cylinder, circular filter plate, two-way water pump, first L-shaped pipe, water inlet and return discharge slag cleaning component, clean water tank, first switching water supply component, second switching water supply component, water level sensor, hydraulic rotary drive water supply component and brushing and recoil dredging component, so as to prevent impurities from statically accumulating on its left side and causing blockage, thereby achieving the phenomenon of stable prevention of solid slag impurities from flowing backward into the water quality sensor while preventing impurities from statically accumulating and blocking, thereby preventing the water quality sensor from being covered and surrounded by impurities such as solid slag filaments and floccules, thereby affecting the detection, and improving the stability of use;

[0027] After use, the circular filter plate can be automatically backwashed, cleaned and dredged, the sampling and extraction flow channel can be backwashed, cleaned and dredged, and backwashing and slag removal can be performed. There is no need for personnel to remove the circular filter plate for cleaning and dredging, and there is no need for personnel to perform slag removal inside the filter. The automation and convenience of internal cleaning, slag removal and dredging are improved. In addition, the integrated automatic backwashing can reduce the phenomenon that a large amount of particulate impurities remain in the sampling and extraction flow channel and affect the next use, thereby improving the cleanliness of use.

[0028] 3. The water quality monitoring device of the present invention has a water inlet, return and slag removal component, and its hose can be individually disassembled and stored in the internal tube storage box, so that the hose can be centrally stored and hidden inside after use, so that it is convenient for personnel to flexibly carry the entire device to carry out multiple water source detection work, so that the flexibility of use is significantly improved;

[0029] 4. The water quality monitoring device described in the present invention, through the cooperation of the hidden solar energy storage components and the storage battery, can utilize solar energy for convenient power storage when carried out for use, so as to ensure better use when going out, reduce the inconvenience of charging when going out to detect water sources, and further improve the flexibility of use.

[0030] The present invention is convenient for directly extracting and sampling water sources for testing and filtering water samples to intercept solid residue, filamentous impurities and the like by providing a series of structures, so that it is convenient to automatically prevent the static accumulation and blockage of impurities during use and stably prevent the solid residue impurities from flowing backward into the testing location, thereby improving the stability of use, and is convenient for automatically cleaning and unblocking the circular filter plate, backwashing and unblocking the sampling and extraction flow channel and backwashing and deslagging after use, without the need for personnel to perform the removal, cleaning, unblocking and deslagging work separately, thereby improving the degree of automation and convenience of cleaning, deslagging and unblocking, and in addition, it is convenient for personnel to carry the filter bag as a whole after use to perform water source testing at multiple locations, thereby improving the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of a water quality monitoring device proposed in Embodiment 1 of the present invention;

[0032] Figure 2 This is a schematic diagram of the internal three-dimensional structure of a box of a water quality monitoring device proposed in the first embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of a front cross-sectional structure of a water quality monitoring device proposed in the first embodiment of the present invention;

[0034] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0035] Figure 5 for Figure 3 A schematic diagram of the enlarged structure of part B in FIG.

[0036] Figure 6 This is a schematic diagram of the three-dimensional structure of a circular filter plate, a first sealing bearing and an outer gear ring connecting piece of a water quality monitoring device proposed in the first embodiment of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of a water quality monitoring device proposed in Embodiment 2 of the present invention;

[0038] Figure 8 A schematic diagram of the internal three-dimensional structure of a box of a water quality monitoring device proposed in the second embodiment of the present invention;

[0039] Fig. 9 This is a schematic diagram of the front cross-sectional structure of a water quality monitoring device proposed in the second embodiment of the present invention.

[0040] In the figure: 1, box body; 101, U-shaped handle; 102, battery; 103, transparent cover; 104, clean water tank; 3, cylinder; 4, L-shaped support plate; 401, detection box; 402, water quality sensor; 403, PLC controller; 404, display; 405, water level sensor; 5, two-way water pump; 501, first L-shaped pipe; 502, second L-shaped pipe; 503, first solenoid valve; 504, second solenoid valve; 6, round filter plate; 601, outer gear ring; 602, first sealed bearing; 603, gear; 604, shaft; 605, first box body; 606, The first rotating drum; 607, the first one-way bearing; 608, the first water wheel blade; 609, the second box body; 610, the second rotating drum; 611, the second water wheel blade; 612, the second one-way bearing; 7, the conical cover; 701, the internal thread joint; 702, the external thread sleeve; 703, the hose; 704, the tube storage box; 8, the three-way pipe; 801, the third solenoid valve; 802, the fourth solenoid valve; 9, the Z-shaped pipe; 901, the vertical pipe; 902, the recoil pipe head; 903, the cleaning brush; 10, the box-shaped cover; 1011, the solar panel; 1012, the knob-type bolt; 1013, the limit support block. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0042] Embodiment 1

[0043] like Figures 1 to 6As shown, a water quality monitoring device proposed in this embodiment includes a box body 1 with an opening on the front side and a transparent cover plate 103 rotatably installed on the front side thereof by hinges, a U-shaped handle 101 is fixedly connected to the top of the box body 1, a clean water tank 104 is fixedly installed on the right inner wall of the box body 1, a cylinder 3 is fixedly installed on the bottom inner wall of the box body 1, an L-shaped support plate 4 is fixedly connected to the top of the cylinder 3, a detection box 401 is fixedly connected to the top of the L-shaped support plate 4, wherein a plurality of air holes are arranged on the top of the detection box 401, a water quality sensor 402 is installed in the detection box 401, a PLC controller 403 and a display 404 are fixedly installed on the left side of the detection box 401, and the display 404 and the water quality sensor 402 are both connected to the PLC The controller 403 is electrically connected, and the water quality sensor 402 includes a temperature sensor, a pH sensor, a dissolved oxygen sensor, and a turbidity sensor, wherein the PLC controller 403 is a networked programmable controller with a built-in communication module; the water quality sensor 402 is used to detect the temperature, pH, dissolved oxygen, and turbidity of the water when the water to be tested enters the test box 401, and transmits the corresponding values ​​to the PLC controller 403, and the PLC controller 403 controls the display 404 to display the corresponding data to realize water quality detection. When receiving the corresponding water quality value, the PLC controller 403 also transmits the water quality data to the external server terminal through the communication module for recording and storage, so that personnel can compare the water quality data of different time periods later;

[0044] A two-way water pump 5 electrically connected to the PLC controller 403 is fixedly installed on the bottom inner wall of the box body 1, the right end of the two-way water pump 5 is connected and fixed with a first L-shaped tube 501, the left end of the two-way water pump 5 is connected and fixed with a first switching water-passing component between the right bottom of the cylinder 3, a circular filter plate 6 is provided in a sealed rotating sleeve in the cylinder 3, and a hydraulic rotary drive water-passing component is fixedly provided on the outer side of the circular filter plate 6, the first switching water-passing component and the top of the first L-shaped tube 501 are both connected and fixed with the bottom of the hydraulic rotary drive water-passing component, and the top of the hydraulic rotary drive water-passing component is connected to the right side of the detection box 401. The bottom and the bottom of the clean water tank 104 are connected and fixed with the same second switching water-passing assembly, and the left top of the hydraulic rotary drive water-passing assembly is connected and fixed with a Z-shaped tube 9 with a blocking structure at the left end, wherein the right side of the cylinder 3 is provided with a circular through-hole fixedly connected to the outside of the Z-shaped tube 9 for air supply penetration, and the circular filter plate 6 is sealed and rotatably sleeved on the Z-shaped tube 9, wherein a first circular hole is provided at the center of the right side of the circular filter plate 6, and a second sealing bearing is fixedly sleeved between the first circular hole and the outside of the Z-shaped tube 9, which plays the effect of rotatably installing the circular filter plate 6, and a useful In the brushing and backwashing dredging component for brushing and backwashing the circular filter plate 6, a water level sensor 405 is fixedly connected to the right inner wall and the bottom inner wall of the detection box 401, and the water level sensor 405, the first switching water flow component and the second switching water flow component are all electrically connected to the PLC controller 403; the first switching water flow component is used to draw external water source through the cylinder 3 when the two-way water pump 5 is started forward, and is also used to switch the water outlet direction under the control of the PLC controller 403 when the two-way water pump 5 is started reversely for backflow; the second switching water flow component is used to switch the water outlet direction when the two-way water pump 5 is started forward When the two-way water pump 5 is started, water is supplied to the detection box 401. When the two-way water pump 5 is started in reverse, the water in the detection box 401 is pumped back and discharged. When there is no water in the detection box 401, it is switched to extracting clean water from the clean water tank 104 for backwashing and flushing. The hydraulic rotary drive water-passing component is used to drive the circular filter plate 6 to rotate when the two-way water pump 5 is started. The set circular filter plate 6 is used to filter and intercept solid residues in the water when extracting external water. The brushing and recoil dredging component is used to brush and clean the left side of the rotating circular filter plate 6, and is used to automatically recoil and clean the rotating circular filter plate 6 when it is backwashed.

[0045] The bottom of the cylinder 3 is connected and fixed with a water inlet, return and slag cleaning component; the water inlet, return and slag cleaning component is used to extract external water source when the inside of the cylinder 3 is extracted, as a sampling extraction flow channel, and is used to automatically discharge solid slag and impurities in the extraction flow channel during backwash cleaning, forming an integrated cleaning operation.

[0046] Specifically, the first switching water-passing component includes a first solenoid valve 503, a second L-shaped tube 502, and a second solenoid valve 504. The right side of the second L-shaped tube 502 is connected and fixed to the left end of the two-way water pump 5. The first solenoid valve 503 is connected and fixed between the bottom right side of the cylinder 3 and the left end of the second L-shaped tube 502. The second solenoid valve 504 is connected and fixed to the top of the second L-shaped tube 502. The first solenoid valve 503 and the second solenoid valve 504 are both electrically connected to the PLC controller 403. The first solenoid valve 503, the second L-shaped tube 502, and the second solenoid valve 504 cooperate with each other. In the initial sampling state, P The LC controller 403 controls the first solenoid valve 503 to open and controls the second solenoid valve 504 to close. When the two-way water pump 5 is started in the forward direction, water is pumped from the inside of the cylinder 3 through the second L-shaped tube 502 and the first solenoid valve 503 in sequence. During the subsequent backflow cleaning, the PLC controller 403 controls the two-way water pump 5 to start in the reverse direction, and also controls the first solenoid valve 503 to close and controls the second solenoid valve 504 to open. When the two-way water pump 5 starts in the reverse direction and backflows, water is backflowed into the second L-shaped tube 502. At this time, the water is converted to supply water upward through the second solenoid valve 504, thereby achieving the effect of switching the water outlet direction during backflow.

[0047] Furthermore, the hydraulic rotary drive water-passing assembly includes an outer gear ring 601, a gear 603, a rotating shaft 604, a first box body 605, a first rotating drum 606, a plurality of first water wheel blades 608 and two first one-way bearings 607. The outer gear ring 601 is fixedly sleeved on the outer side of the circular filter plate 6, the rotating shaft 604 is rotatably installed on the top of the cylinder 3, the gear 603 is fixedly connected to the left end of the rotating shaft 604 and meshes with the top of the outer gear ring 601, the first rotating drum 606 is unidirectionally rotatably sleeved on the rotating shaft 604 through two first one-way bearings 607, the first box body 605 is sealingly rotatably sleeved on the first rotating drum 606, a plurality of first water wheel blades 608 are fixedly connected to the outer side of the first rotating drum 606 at equal intervals in an annular shape, and are located in the first box body 605, and the right end of the Z-shaped tube 9 is located behind the rotating shaft 604 and connected to the left top of the first box body 605 The top of the second solenoid valve 504 is connected and fixed to the rear side of the bottom end of the first box body 605, and is vertically aligned with the first water wheel blade 608 located on the rear side; the outer gear ring 601, gear 603, shaft 604, first box body 605, first drum 606, multiple first water wheel blades 608 and two first one-way bearings 607 are arranged to cooperate. When the two-way water pump 5 is reversely started for backflow, water is pumped into the first box body 605 through the second solenoid valve 504. The water impulse rotates the first water wheel blade 608 to drive the first drum 606 to rotate. The first drum 606 drives the shaft 604 to rotate through the first one-way bearing 607. The shaft 604 drives the circular filter plate 6 to rotate through the gear 603 and the outer gear ring 601 in turn, so as to achieve the effect of automatically rotating the circular filter plate 6 by using water power when the two-way water pump 5 is reversely started;

[0048] The hydraulic rotary drive water supply assembly also includes a second box body 609, a second rotating drum 610, a plurality of second water wheel blades 611 and two second one-way bearings 612. The second rotating drum 610 is unidirectionally rotatably sleeved on the rotating shaft 604 through two second one-way bearings 612. The second box body 609 is sealed and rotatably sleeved on the second rotating drum 610. Second circular holes are opened on the inner walls of both sides of the second box body 609. A third sealed bearing is fixedly sleeved between the second circular hole and the outer side of the second rotating drum 610, which plays the effect of sealing and rotating the second rotating drum 610. The plurality of second water wheel blades 611 are fixed in an annular shape with equal spacing. The second one-way bearing 612 is arranged opposite to the first one-way bearing 607, and the top of the first L-shaped tube 501 is connected and fixed to the bottom front side of the second box body 609, and is vertically aligned with the second water wheel blade 611 located at the front side; the second box body 609, the second rotating drum 610, the plurality of second water wheel blades 611 and the two second one-way bearings 612 are arranged to cooperate, and when the two-way water pump 5 is started in the forward direction to supply water, water enters the second box body 609 through the first L-shaped tube 501, and impels the second water wheel blade 611 to rotate. The second drum 610 is driven to rotate, and the second drum 610 drives the rotating shaft 604 to rotate through the second one-way bearing 612, and the rotating shaft 604 drives the circular filter plate 6 to rotate through the gear 603 and the outer gear ring 601 in turn, so that the circular filter plate 6 is driven to rotate automatically when the two-way water pump 5 is started in the forward direction by hydraulic force, and the circular filter plate 6 is driven to rotate when it is used or returned by hydraulic force. In addition, since the second one-way bearing 612 is arranged in the opposite direction to the first one-way bearing 607, and the first water wheel blade 608 on the rear side of the impulse is on the left side, the counterclockwise rotation is formed. , and the second water wheel blade 611 on the right side of the impulse front side forms a clockwise rotation. Under the two different rotation directions and the second one-way bearing 612 and the first one-way bearing 607 can rotate in opposite directions, so that both sides can drive the rotating shaft 604 to rotate, and the effect of no interference between the two sides is formed, that is, when sampling and supplying, the right side is used to drive the rotating shaft 604 to rotate, while the first water wheel blade 608 on the left side does not rotate, and when discharging, the left side is used to drive the rotating shaft 604 to rotate, while the second water wheel blade 611 on the right side does not rotate. When one side is used, it is not subject to the damping interference of the other side, ensuring the stability of the hydraulic rotation;

[0049] Two first sealing bearings 602 are fixedly sleeved in the cylinder 3, and the inner ring of the first sealing bearing 602 is fixedly sleeved on the outer side of the circular filter plate 6. The outer gear ring 601 is located between the two first sealing bearings 602, which plays the effect of sealing the rotating installation of the circular filter plate 6 and forming the effect of shielding the two sides of the outer gear ring 601.

[0050] Furthermore, the second switching water supply component includes a three-way pipe 8, a third solenoid valve 801 and a fourth solenoid valve 802. The bottom end of the three-way pipe 8 is connected and fixed to the top of the second box body 609, the third solenoid valve 801 is connected and fixed between the bottom of the right side of the detection box 401 and the left end of the three-way pipe 8, and the fourth solenoid valve 802 is connected and fixed between the bottom of the clean water tank 104 and the top of the three-way pipe 8. The third solenoid valve 801 and the fourth solenoid valve 802 are both electrically connected to the PLC controller 403; the three-way pipe 8, the third solenoid valve 801 and the fourth solenoid valve 802 are arranged to cooperate. When the water source is drawn for supply, the PLC controller 403 also controls the third solenoid valve 801 to open and the fourth solenoid valve 802 to close. The water supplied into the second box body 609 is sequentially sent into the detection box 401 through the three-way pipe 8 and the third solenoid valve 801. The water level sensor 405 located on the upper side detects that the water level increases to its position and transmits a stop signal to the PLC controller 403. The PLC controller 403 controls the two-way water pump 5 to be closed. When the detection is completed and the sampling and extraction flow channel is cleaned, the PLC controller 403 controls the two-way water pump 5 to start in the reverse direction, and controls the first solenoid valve 503 to be closed and the second solenoid valve 504 to be opened. At this time, the two-way water pump 5 extracts water in the detection box 401 through the first L-shaped tube 501, the second box body 609, the three-way tube 8 and the third solenoid valve 801 in turn, and pumps it into the first box body 605 through the second L-shaped tube 502 and the second solenoid valve 504 in turn. The water then enters the Z-shaped tube 9 for back-drainage and back-flushing. When the water level sensor 405 below detects that the water in the detection box 401 is discharged to its position, it represents that there is no water, which is transmitted to the PLC controller 403 to switch the signal. At this time, the PLC controller 403 controls the third solenoid valve 801 to be closed and the fourth solenoid valve 802 to be opened. At this time, it is converted into extracting clean water in the clean water tank 104 and supplying it to the Z-shaped tube 9, and back-flushing and cleaning work is performed by circulating clean water;

[0051] Among them, a battery 102 is fixedly installed on the left inner wall of the box body 1, and an inverter is fixed and electrically connected to the right side of the battery 102. The display 404, PLC controller 403, two-way water pump 5, first solenoid valve 503, second solenoid valve 504, third solenoid valve 801 and fourth solenoid valve 802 are all electrically connected to the inverter.

[0052] Furthermore, the brush-cleaning recoil dredging assembly includes a cleaning brush 903, a vertical pipe 901 with a blocking structure at the top, and a plurality of recoil pipe heads 902. The cleaning brush 903 is fixedly connected to the bottom left side of the Z-shaped tube 9 and is in active contact with the bottom left side of the circular filter plate 6. The vertical pipe 901 is connected and fixed to the top left side of the Z-shaped tube 9. A plurality of recoil pipe heads 902 are connected and fixed to the left side of the vertical pipe 901 at equal intervals. The recoil pipe head 902 is located on the upper right side of the circular filter plate 6 and cooperates with the circular filter plate 6. The cleaning brush 903 is fixedly connected to the bottom left side of the Z-shaped tube 9 and is in active contact with the bottom left side of the circular filter plate 6. 903, a vertical pipe 901 with a blocking structure at the top and a plurality of recoil pipe heads 902 cooperate, and when the circular filter plate 6 rotates, its left side will rub against the cleaning brush 903, thereby achieving the effect of automatically brushing and cleaning the left side of the circular filter plate 6 during water supply and return discharge. When return water is supplied into the Z-shaped pipe 9, the water enters the vertical pipe 901, and then is sprayed to the left through the plurality of recoil pipe heads 902, so as to recoil and clean the filter holes of the rotating circular filter plate 6 itself, thereby achieving the effect of automatically cleaning and unblocking the circular filter plate 6 after use.

[0053] Furthermore, the water inlet return discharge slag cleaning component includes a conical cover 7, an internal threaded joint 701, an external threaded sleeve 702, a hose 703 and a tube storage box 704. The left inner wall of the cylinder 3 is set as an inclined surface. The conical cover 7 is connected and fixed to the left side of the bottom of the cylinder 3. The internal threaded joint 701 is connected and fixed to the bottom of the conical cover 7. The external threaded sleeve 702 is screwed into the internal threaded joint 701. The hose 703 is located below the box body 1 and is connected and fixed to the bottom end of the external threaded sleeve 702. The tube storage box 704 is fixedly connected to the left inner wall of the box body 1 and is used to store the hose 703 after use. The conical cover 7, the internal threaded joint 701, the external threaded sleeve 702, the hose 703 and the tube storage box 704 are set. 703 cooperates with the storage tube box 704, and when being sucked in the cylinder 3, the external water source is extracted in sequence through the conical cover 7, the internal threaded joint 701, the external threaded sleeve 702 and the hose 703. During the backwashing and backwashing cleaning, the backwashed water and the impurities flushed to the left follow the water downward and are discharged outward through the conical cover 7, the internal threaded joint 701, the external threaded sleeve 702 and the hose 703, and the clean water is discharged into the back to form the effect of flushing the sampling and extraction flow channel composed of the above structure, reducing the phenomenon that a large amount of particulate impurities remain in the sampling and extraction flow channel and affect the next use, achieving the effect of self-cleaning flow channel and slag discharge, and improving the cleaning convenience and cleanliness of use.

[0054] The present embodiment can directly extract samples for testing from water sources, and filter the water samples to intercept solid residue, filamentous impurities, and the like; when sampling, it can automatically drive the circular filter plate 6 to rotate and brush its left side to prevent impurities from accumulating on its left side and causing blockage, thereby preventing the solid residue impurities from flowing backwards into the water quality sensor 402 while preventing the impurities from accumulating and blocking, thereby improving the stability of use; after use, it can automatically clean and dredge the circular filter plate 6, backwash and clear the sampling flow channel, and backwash and discharge the residue, without the need for personnel to perform the removal, cleaning, clearing and discharge work separately, thereby improving the automation and convenience of cleaning and dredging, and making it convenient for the user to remove the hose 703 and store it inside, so as to facilitate the personnel to flexibly carry the entire device for outdoor water source testing at multiple locations, thereby improving the flexibility of use.

[0055] This embodiment also proposes a water quality monitoring method of a water quality monitoring device, comprising the following steps:

[0056] S1: By starting the two-way water pump 5 in the forward direction, the water source to be tested is extracted through the second L-shaped tube 502, the first solenoid valve 503, the cylinder 3, the conical cover 7, the internal thread joint 701, the external thread sleeve 702 and the hose 703 in sequence, and the silky impurities and solid residues in the water source are filtered out by the circular filter plate 6. The extracted water source is supplied to the detection box 401 through the first L-shaped tube 501, the second box body 609, the three-way pipe 8 and the third solenoid valve 801 in sequence;

[0057] S2: Monitor and collect water quality information of the water body through the water quality sensor 402, obtain current water quality data, and transmit it to the PLC controller 403;

[0058] S3: The PLC controller 403 controls the display 404 to display the corresponding data for personnel to view and analyze, thereby realizing water quality detection. The PLC controller 403 also transmits the water quality data to an external server terminal through a communication module for recording and preservation, so that personnel can subsequently compare the water quality data of different time periods.

[0059] When the present embodiment is used, the bottom end of the hose 703 is directly placed in the water body, and the PLC controller 403 is pre-programmed to control the first solenoid valve 503 to open, the second solenoid valve 504 to close, the third solenoid valve 801 to open, the fourth solenoid valve 802 to close, and the two-way water pump 5 to start forward during sampling and detection, and to control the third solenoid valve 801 to open, the fourth solenoid valve 802 to close, the two-way water pump 5 to start reversely, the first solenoid valve 503 to close, and the second solenoid valve 504 to open during backflow, and to control the two-way water pump 5 to close when the water level reaches the upper value during sampling and detection, and to control the third solenoid valve 801 to close and the fourth solenoid valve 802 to open when the water level reaches the lowest value during backflow; wherein the programmer controls the above-mentioned electrical components to open and close in two states in sequence according to the above-mentioned order, which is an existing programming-based numerical control control method, and is a well-known technology in the art. The following mainly introduces the working principle and process, and no further explanation of electrical control is given;

[0060] During sampling and testing, personnel operate the PLC controller 403 to start the sampling work, which controls the first solenoid valve 503 to open, the second solenoid valve 504 to close, the third solenoid valve 801 to open, the fourth solenoid valve 802 to close, and the two-way water pump 5 to start forward. When the two-way water pump 5 starts forward, it extracts the inside of the cylinder 3 through the second L-shaped tube 502 and the first solenoid valve 503 in turn, and the cylinder 3 extracts the external water source through the conical cover 7, the internal thread joint 701, the external thread sleeve 702 and the hose 703 in turn. When water is extracted and circulated in the cylinder 3, the circular filter plate 6 is used to filter and intercept impurities such as solid residue and floccules on the left side of the cylinder 3 to prevent impurities such as solid residue and floccules from flowing to the right. The water extracted by the two-way water pump 5 is pumped out through the first L-shaped tube 501 The water is flushed into the second box body 609, and then sequentially supplied into the detection box 401 through the three-way pipe 8 and the third solenoid valve 801. When the water level sensor 405 above detects that the water level rises to a high position, a stop signal is transmitted to the PLC controller 403. The PLC controller 403 controls the two-way water pump 5 to close and stop sampling. The water quality sensor 402 detects the temperature, pH, dissolved oxygen and turbidity value of the water, and transmits the corresponding values ​​to the PLC controller 403. The PLC controller 403 controls the display 404 to display the corresponding data to realize water quality detection. When the PLC controller 403 receives the corresponding water quality value, it also transmits the water quality data to the external server terminal through the communication module for recording and storage, so that personnel can compare the water quality data of different time periods later.

[0061] When water is pumped into the second box body 609 through the first L-shaped tube 501, the second water wheel blade 611 on the front side is urged upward, so that the second water wheel blade 611 rotates clockwise and drives the second drum 610 to rotate. The second drum 610 drives the rotating shaft 604 to rotate through the second one-way bearing 612. The rotating shaft 604 drives the circular filter plate 6 to rotate through the gear 603 and the outer gear ring 601 in turn, so that the circular filter plate 6 is driven to rotate automatically when the two-way water pump 5 is started forward. When the circular filter plate 6 rotates, its left side will The cleaning brush 903 rubs against the cleaning brush to achieve the effect of automatically brushing and cleaning the left side of the circular filter plate 6 when pumping water for sampling. The brushing cleaning can prevent the solid slag impurities from being statically accumulated on the left side of the circular filter plate 6 to cause blocking. The circular filter plate 6 is fixed in position to perform real-time filtering and interception. This can prevent the solid slag impurities from statically accumulating and blocking while stably preventing the solid slag impurities from flowing backward into the water quality sensor 402. This can prevent the water quality sensor 402 from being covered and surrounded by impurities such as solid slag filaments, which affects the detection, thereby improving the stability of use.

[0062] When draining back after use, the personnel operate the PLC controller 403 to start the draining work, which controls the third solenoid valve 801 to open, the fourth solenoid valve 802 to close, the two-way water pump 5 to start in reverse, the first solenoid valve 503 to close and the second solenoid valve 504 to open. When the two-way water pump 5 starts in reverse, the water in the detection box 401 is extracted through the first L-shaped tube 501, the second box body 609, the three-way tube 8 and the third solenoid valve 801 in sequence, and is pumped into the first box body 605 through the second L-shaped tube 502 and the second solenoid valve 504 in sequence. Then it enters the Z-shaped tube 9, where when water rushes upward into the first box body 605, it will stimulate the first water wheel blade 608 on the rear side to rotate, so that it drives the first rotating drum 606 to rotate counterclockwise, and the first rotating drum 606 drives the rotating shaft 604 to rotate counterclockwise through the first one-way bearing 607, and the rotating shaft 604 drives the circular filter plate 6 to rotate through the gear 603 and the outer gear ring 601 in turn, so that the circular filter plate 6 is also driven to rotate during the backflow, but the rotation direction is changed. In addition, due to the second one-way bearing 612 and the first one-way bearing 6 07 are arranged in opposite directions, and the left side is the first water wheel blade 608 on the rear side of the impulse to form a counterclockwise rotation, while the right side is the second water wheel blade 611 on the front side of the impulse to form a clockwise rotation. Under the two different rotation directions and the second one-way bearing 612 and the first one-way bearing 607 can rotate in opposite directions, so that both sides can drive the rotating shaft 604 to rotate while forming an effect of non-interference between the two sides, that is, when sampling and supplying, the right side drives the rotating shaft 604 to rotate, while the left side first water wheel blade 608 does not rotate, and when returning, the left side drives the rotating shaft 604 to rotate. The side driving shaft 604 rotates, while the second water wheel blade 611 on the right side does not rotate. When one side is used, it is not subject to the damping interference of the other side, thereby ensuring the stability of the hydraulic rotation. When the water is discharged back into the Z-shaped pipe 9, the water enters the vertical pipe 901, and then sprays out to the left through multiple backwash pipe heads 902, and backwashes and cleans the filter holes of the rotating circular filter plate 6 itself, thereby achieving the effect of automatically cleaning and unblocking the circular filter plate 6 after use, without the need for personnel to remove the circular filter plate 6 for cleaning and unblocking, thereby improving the degree of automation of cleaning and unblocking.In addition, as the water continues to return to the left, the water impurities are driven into the conical cover 7 by the water impulse. At this time, the water and the solid slag impurities are discharged outward through the internal threaded joint 701, the external threaded sleeve 702 and the hose 703 in turn. When the water level sensor 405 below detects that the water in the detection box 401 is discharged to its position, it means that there is no water. The water level sensor 405 transmits a switching signal to the PLC controller 403. At this time, the PLC controller 403 controls the third solenoid valve 801 to close and the fourth solenoid valve 802 to open. At this time, the clean water in the clean water tank 104 is extracted and supplied to the Z-shaped tube 9 for backwashing. The clean water circulation is used for further cleaning. This backwashing method is used to achieve the effect of automatic slag discharge and backwash cleaning and dredging of the sampling and extraction flow channel. There is no need for personnel to perform slag discharge work separately inside, which improves the automation and convenience of internal cleaning and slag discharge. In addition, the integrated automatic backwashing cleaning is used to reduce the phenomenon that a large amount of particulate impurities remain in the sampling and extraction flow channel and affect the next use, thereby improving the cleanliness of use.

[0063] In addition, after use, personnel can reversely unscrew the external threaded sleeve 702 from the internal threaded joint 701, and then coil the hose 703 together and put it into the tube storage box 704, so that the hose 703 can be stored inside after use. By using the hose 703, the end of the hose can be directly placed in the water body for sampling. After use, it can be stored and hidden inside for integrated collection. It is convenient for personnel to flexibly carry the entire device through the U-shaped handle 101 to conduct outdoor water source inspections at multiple locations, thereby improving flexibility of use. Personnel can conduct safety monitoring of water quality by regularly testing and judging changes in water quality.

[0064] Embodiment 2

[0065] like Figures 7 to 9 As shown, this embodiment is based on the embodiment one, and its difference from the embodiment one is that: the top of the box body 1 can also be set to an opening, and a hidden solar energy storage component is installed in the open state, the hidden solar energy storage component includes a box-shaped cover 10, a solar panel 1011, a knob-type bolt 1012 and a limit support block 1013, a same hinge is fixedly connected between the left side of the box-shaped cover 10 and the left top of the box body 1, the box-shaped cover 10 is rotatably installed on the top of the box body 1 through the hinge, the U-shaped handle 101 is fixedly connected to the top of the box-shaped cover 10, the solar panel 1011 is fixedly installed on the top inner wall of the box-shaped cover 10, and is electrically connected to the battery 102 through a flexible cable, a threaded groove is opened on the right side of the top of the box body 1, the knob-type bolt 1012 is screwed into the threaded groove, the box-shaped cover 10 is threadedly sleeved on the knob-type bolt 1012, and the limit support block 1013 is fixedly installed on the left top of the box body 1.

[0066] This embodiment facilitates the use of solar energy for convenient power storage when the device is carried out for use, so as to ensure better use when going out, reduce the inconvenience of charging when going out to detect water sources, and further improve the flexibility of use.

[0067] The difference between this embodiment and the first embodiment is that, based on the first embodiment, this embodiment also has the following functions: the box-shaped cover 10 is unlocked by rotating the knob bolt 1012 in the opposite direction, and the box-shaped cover 10 is opened by rotating it to the left so that it is stuck on the top of the limit support block 1013. The box-shaped cover 10 drives the solar panel 1011 to face upward, and the solar panel 1011 is used to convert solar energy into electrical energy and store it in the battery 102. The inverter is used to convert direct current into alternating current for power supply, so that it is convenient to use solar energy for convenient power storage when carrying it out, so as to ensure better utilization when going out, reduce the inconvenience of charging when going out to detect water sources, and further improve the flexibility of use. When not in use, the box-shaped cover 10 is rotated and closed and locked with the knob bolt 1012. The solar panel 1011 can be hidden and protected when not in use or carried, thereby improving its safety.

[0068] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water quality monitoring device, comprising a box body (1) with an opening at the front side and a transparent cover plate (103) rotatably mounted on the front side of the box body through a hinge, characterized in that: A U-shaped handle (101) is fixedly connected to the top of the box body (1), a clean water tank (104) is fixedly installed on the right inner wall of the box body (1), a cylinder (3) is fixedly installed on the bottom inner wall of the box body (1), an L-shaped support plate (4) is fixedly connected to the top of the cylinder (3), a detection box (401) is fixedly connected to the top of the L-shaped support plate (4), a water quality sensor (402) is installed in the detection box (401), a PLC controller (403) and a display (404) are fixedly installed on the left side of the detection box (401), the display (404) and the water quality sensor (402) are both electrically connected to the PLC controller (403), and the water quality sensor (402) comprises a temperature sensor, a pH sensor, a dissolved oxygen sensor and a turbidity sensor; A bidirectional water pump (5) electrically connected to the PLC controller (403) is fixedly mounted on the inner wall of the bottom of the box (1); a first L-shaped tube (501) is fixedly connected to the right end of the bidirectional water pump (5); a first switching water-passing assembly is fixedly connected between the left end of the bidirectional water pump (5) and the right bottom of the cylinder (3); a circular filter plate (6) is sealed and rotated in the cylinder (3); a hydraulic rotary drive water-passing assembly is fixedly mounted on the outer side of the circular filter plate (6); the first switching water-passing assembly and the top of the first L-shaped tube (501) are both fixedly connected to the bottom of the hydraulic rotary drive water-passing assembly; the top of the hydraulic rotary drive water-passing assembly is connected to the detection box (401). ) is connected and fixed between the right bottom of the detection box (401) and the bottom of the clean water tank (104); a Z-shaped tube (9) with a blocking structure at the left end is connected and fixed to the top of the left side of the hydraulic rotary drive water-passing assembly; the circular filter plate (6) is sealed and rotatably sleeved on the Z-shaped tube (9); a brushing and backwashing dredging assembly for brushing and backwashing the circular filter plate (6) is installed on the Z-shaped tube (9); a water level sensor (405) is fixedly connected to the right inner wall and the bottom inner wall of the detection box (401); the water level sensor (405), the first water-passing switch assembly and the second water-passing switch assembly are all electrically connected to the PLC controller (403); The bottom of the cylinder (3) is connected and fixed with a water inlet, return and slag cleaning component.

2. A water quality monitoring device according to claim 1, characterized in that: The first switching water-passing component comprises a first solenoid valve (503), a second L-shaped tube (502) and a second solenoid valve (504); the right side of the second L-shaped tube (502) is connected and fixed to the left end of the two-way water pump (5); the first solenoid valve (503) is connected and fixed between the bottom right side of the cylinder (3) and the left end of the second L-shaped tube (502); the second solenoid valve (504) is connected and fixed to the top end of the second L-shaped tube (502); and both the first solenoid valve (503) and the second solenoid valve (504) are electrically connected to the PLC controller (403).

3. A water quality monitoring device according to claim 2, characterized in that: The hydraulic rotary drive water-passing assembly comprises an outer gear ring (601), a gear (603), a rotating shaft (604), a first box body (605), a first rotating drum (606), a plurality of first water wheel blades (608) and two first one-way bearings (607). The outer gear ring (601) is fixedly sleeved on the outside of the circular filter plate (6), the rotating shaft (604) is rotatably mounted on the top of the cylinder (3), the gear (603) is fixedly connected to the left end of the rotating shaft (604) and meshes with the top of the outer gear ring (601), and the first rotating drum (606) is connected to the outer gear ring (601) through the two first one-way bearings (607). ) is unidirectionally rotatably sleeved on the rotating shaft (604), the first box body (605) is sealingly rotatably sleeved on the first rotating drum (606), a plurality of first water wheel blades (608) are fixedly connected to the outside of the first rotating drum (606) in an annular shape and at equal intervals, and are located in the first box body (605), the right end of the Z-shaped tube (9) is located behind the rotating shaft (604) and is connected and fixed to the left top of the first box body (605), the top end of the second solenoid valve (504) is connected and fixed to the rear side of the bottom end of the first box body (605), and is vertically aligned with the first water wheel blades (608) located at the rear side; The hydraulic rotary drive water-passing assembly further comprises a second box body (609), a second rotating drum (610), a plurality of second water wheel blades (611) and two second one-way bearings (612); the second rotating drum (610) is unidirectionally rotatably sleeved on the rotating shaft (604) via the two second one-way bearings (612); the second box body (609) is sealingly rotatably sleeved on the second rotating drum (610); the plurality of second water wheel blades (611) are annularly fixedly connected to the outside of the second rotating drum (610) at equal intervals and are located in the second box body (609); the second one-way bearing (612) is arranged in a direction opposite to that of the first one-way bearing (607); the top end of the first L-shaped tube (501) is connected and fixed to the front side of the bottom of the second box body (609) and is vertically aligned with the second water wheel blades (611) located at the front side.

4. A water quality monitoring device according to claim 3, characterized in that: The second switching water flow component comprises a three-way pipe (8), a third solenoid valve (801) and a fourth solenoid valve (802); the bottom end of the three-way pipe (8) is connected and fixed to the top of the second box body (609); the third solenoid valve (801) is connected and fixed between the right bottom of the detection box (401) and the left end of the three-way pipe (8); the fourth solenoid valve (802) is connected and fixed between the bottom of the clean water tank (104) and the top of the three-way pipe (8); the third solenoid valve (801) and the fourth solenoid valve (802) are both electrically connected to the PLC controller (403).

5. A water quality monitoring device according to claim 1, characterized in that: The brush-cleaning recoil-flushing dredging assembly comprises a cleaning brush (903), a vertical pipe (901) with a blocking structure at the top, and a plurality of recoil-flushing pipe heads (902); the cleaning brush (903) is fixedly connected to the left side of the bottom of the Z-shaped pipe (9) and is in active contact with the left bottom of the circular filter plate (6); the vertical pipe (901) is connected and fixed to the left side of the top of the Z-shaped pipe (9); the plurality of recoil-flushing pipe heads (902) are connected and fixed to the left side of the vertical pipe (901) at equal intervals; the recoil-flushing pipe head (902) is located on the upper right side of the circular filter plate (6) and is matched with the circular filter plate (6).

6. A water quality monitoring device according to claim 1, characterized in that: The water inlet return discharge slag cleaning assembly comprises a conical cover (7), an internal thread joint (701), an external thread sleeve (702), a hose (703) and a tube storage box (704); the left inner wall of the cylinder (3) is arranged as an inclined surface; the conical cover (7) is connected and fixed to the left side of the bottom of the cylinder (3); the internal thread joint (701) is connected and fixed to the bottom of the conical cover (7); the external thread sleeve (702) is screwed into the internal thread joint (701); the hose (703) is located below the box body (1) and is connected and fixed to the bottom end of the external thread sleeve (702); the tube storage box (704) is fixedly connected to the left inner wall of the box body (1) and is used to store the hose (703) after use.

7. A water quality monitoring device according to claim 4, characterized in that: A storage battery (102) is fixedly mounted on the left inner wall of the box body (1); an inverter is fixedly mounted on the right side of the storage battery (102) and electrically connected; a display (404), a PLC controller (403), a two-way water pump (5), a first solenoid valve (503), a second solenoid valve (504), a third solenoid valve (801) and a fourth solenoid valve (802) are all electrically connected to the inverter.

8. A water quality monitoring device according to claim 3, characterized in that: Two first sealed bearings (602) are fixedly sleeved inside the cylinder (3); the inner ring of the first sealed bearing (602) is fixedly sleeved with the outer side of the circular filter plate (6); the outer gear ring (601) is located between the two first sealed bearings (602); and the PLC controller (403) is a networked programming controller with a built-in communication module.

9. A water quality monitoring device according to claim 7, characterized in that: The top of the box body (1) can also be set to be open, and a hidden solar energy storage component is installed in the open state, the hidden solar energy storage component comprising a box-shaped cover plate (10), a solar panel (1011), a knob-type bolt (1012) and a limit support block (1013), the left side of the box-shaped cover plate (10) and the left top of the box body (1) are fixedly connected by a hinge, and the box-shaped cover plate (10) is rotatably installed on the top of the box body (1) through the hinge, The U-shaped handle (101) is fixedly connected to the top of the box-shaped cover (10); the solar panel (1011) is fixedly mounted on the top inner wall of the box-shaped cover (10) and is electrically connected to the storage battery (102) via a flexible cable; a threaded groove is provided on the right side of the top of the box body (1); a knob-type bolt (1012) is screwed into the threaded groove; the box-shaped cover (10) is threadedly sleeved on the knob-type bolt (1012); and a limit support block (1013) is fixedly mounted on the top of the left side of the box body (1).

10. A water quality monitoring method according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: by starting the bidirectional water pump (5) in the forward direction, the water source to be tested is extracted through the second L-shaped tube (502), the first solenoid valve (503), the cylinder (3), the conical cover (7), the internal thread joint (701), the external thread sleeve (702) and the hose (703) in sequence, and the filamentous impurities and solid residues in the water source are filtered out by the circular filter plate (6). The extracted water source is supplied into the detection box (401) in sequence through the first L-shaped tube (501), the second box body (609), the three-way pipe (8) and the third solenoid valve (801); S2: Monitor and collect water quality information of the water body through the water quality sensor (402), obtain current water quality data, and transmit it to the PLC controller (403); S3: The PLC controller (403) controls the display (404) to display the corresponding data for personnel to view and analyze, thereby realizing water quality detection. The PLC controller (403) also transmits the water quality data to an external server terminal through a communication module for recording and storage, so that personnel can subsequently compare the water quality data of different time periods.

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