Water quality mineral content detection device

Abstract

The invention relates to a water quality mineral content detection device, and relates to the technical field of water quality detection, the water quality mineral content detection device comprises a floating seat, a detection device arranged in the floating seat and a fixed rod fixedly inserted in the center of a lake, the floating seat is connected with the fixed rod, the floating seat is provided with a photovoltaic power generation assembly and a wireless transmission part, and the wireless transmission part is connected with the detection device. The photovoltaic power generation assembly is used for supplying power to the detection equipment and the wireless transmission part, the wireless transmission part is used for transmitting and uploading detection data of the detection equipment, and the floating seat is provided with a sampling assembly and a flocculation assembly. The device has the advantages that mineral water quality detection can be conveniently carried out at the center of the lake, and the detection efficiency and the detection precision are improved.

Description

Technical Field

[0001] This application relates to the technical field of water quality detection, and particularly to a device for detecting the mineral content in water quality. Background Art

[0002] Generally, water quality detection is an activity of analyzing and testing various physical, chemical, and biological properties in water bodies. Such tests include the detection of temperature, pH, dissolved oxygen, conductivity, chemical substances, and biological indicators. Through these detections, the pollution degree, ecological status, and biodiversity of water bodies can be comprehensively evaluated.

[0003] Since the drinking water sources in our country come from lakes, the mineral content in lakes has an important impact on the water quality of lakes, and the water quality of lakes has an important impact on surrounding agricultural production, environmental protection, and drinking water safety. Therefore, it is necessary to regularly or irregularly detect the mineral content in lake water quality, so as to provide strong support for water resource management and protection.

[0004] A Chinese patent document with the publication number CN119413984A discloses a detection device and method for environmental water quality detection, including a main body unit, a detection unit, a cleaning unit, a regulation unit, and a water supply unit; the detection unit is fixedly arranged in the middle of the inner lower wall at the right end of the main body unit, the cleaning unit is fixedly arranged on the upper wall at the left end inside the main body unit and is hermetically inserted with the detection unit, the regulation unit is fixedly arranged on the lower wall at the right end inside the main body unit, and the regulation unit is in contact with the detection unit, and the water supply unit is detachably arranged in the middle of the front end of the box cover of the main body unit, and the water supply unit is respectively connected to the detection unit and the regulation unit through hoses.

[0005] In view of the above related technologies, when detecting the mineral water quality in large water areas such as lakes, due to the influence of river inflows and wind and wave agitation on the side areas of lakes, the water flow disturbance is large, which will affect the sedimentation and distribution of minerals, and there are differences in the redox conditions in the center and side areas of lakes, thus affecting the generation and enrichment of oxidizing minerals. It is not easy to detect the mineral content in the water quality at the center of the lake through the above equipment, and the operation is relatively cumbersome. Summary of the Invention

[0006] In order to facilitate the detection of the mineral water quality at the center of a lake, improve the detection efficiency and at the same time improve the detection accuracy, this application provides a device for detecting the mineral content in water quality.

[0007] A device for detecting the mineral content in water quality provided by this application adopts the following technical solutions: A water quality mineral content detection device, comprising a floating seat, a detection device arranged inside the floating seat, and a fixed rod fixedly inserted into the center of a lake. The floating seat is connected to the fixed rod. A photovoltaic power generation component and a wireless transmission component are arranged on the floating seat. The photovoltaic power generation component is used to supply power to the detection device and the wireless transmission component. The wireless transmission component is used to transmit and upload the detection data of the detection device. A sampling component and a flocculation component are arranged on the floating seat; The sampling component includes a sampling tube extending into the water body, a detection box arranged inside the floating seat, a sampling plate arranged in the detection box in a lifting manner, and a power component for periodically lifting and lowering the sampling plate. The sampling tube is communicated with the detection box. A detection probe is arranged at the bottom end of the detection device. An installation hole for the detection probe to penetrate is formed on the sampling plate. The detection probe extends into the detection box. The sampling plate is attached to the inner peripheral wall of the detection box; The flocculation component includes a liquid storage tank arranged inside the floating seat and a communication pipe communicated with the detection box. A flocculant is stored in the liquid storage tank. A flocculation plate is slidably arranged in the liquid storage tank. The flocculation plate is attached to the inner peripheral wall of the liquid storage tank. The power component drives the flocculation plate to slide periodically to squeeze the flocculant in the liquid storage tank into the detection box periodically; The flocculation component further includes an air flotation pipe communicated with the detection box and an air supply component for supplying air into the detection box. The air flotation pipe is communicated with the bottom side of the side wall of the detection box. A replenishing component for replenishing the flocculant according to the surface wind speed of the lake is further arranged on the floating seat.

[0008] By adopting the above technical solution, when detecting the water quality minerals of a lake, the floating seat is fixed at the center of the lake through the fixed rod. At this time, the sampling tube located at the bottom side of the floating seat extends into the lake. Then, the power component is used to drive the sampling plate to lift and lower periodically. When the sampling plate rises, a negative pressure is generated in the detection box, sucking the water in the lake into the detection box. The detection head extends into the water body in the detection box for detection, so as to obtain the water quality mineral content.

[0009] Since when detecting the mineral content, it is necessary to treat the suspended substances and organic matters in the water quality to reduce the adsorption of the suspended substances on the minerals and affect the detection result of the mineral content. Therefore, through the arranged liquid storage tank and the communication pipe communicated with the detection box, when the power component drives the sampling plate to rise for water quality sampling, the flocculation plate is synchronously driven to lift and lower. When the flocculation plate lifts and lowers in the liquid storage tank, the flocculant is periodically squeezed into the detection box to flocculate the water body in the detection box.

[0010] Meanwhile, air is supplied into the detection box through the provided air flotation pipe. The bubbles generated by the air flotation pipe float upward from the bottom of the detection box, thereby driving the flocculated suspended matter to float to the liquid surface, accelerating the flocculation of the suspended matter, and reducing the detection cycle.

[0011] By setting an additional component to add flocculant when there are large waves in the lake, it reduces the sediment and various mineral-containing particulate matters rolled up from the bottom of the lake or river due to water body fluctuations caused by the waves. Such particulate matters will increase the mineral concentration in the water body. Therefore, by setting the additional component to further add flocculant to suspend the particulate matters. Since the detection probe extends deep into the bottom side of the detection box, the detected mineral content results are accurate, reducing the accuracy problems caused by the waves.

[0012] Meanwhile, the detection results obtained by the detection device are transmitted or uploaded to the cloud through the provided wireless transmission component, facilitating relevant technical personnel to obtain relevant data for lake water quality analysis, and thus facilitating subsequent maintenance processing of the water quality and formulating relevant maintenance plans.

[0013] Meanwhile, since it is inconvenient to connect electricity for operation in the center of the lake, the provided photovoltaic power generation component supplies power to the wireless transmission component and the detection device, thus saving energy.

[0014] Optionally, the power component includes a power lead screw rotatably arranged on the floating seat and a lifting block threadedly assembled on the power lead screw. The lifting block is connected to both the sampling plate and the flocculation plate. The power lead screw is provided with a double-thread, and the floating seat is further provided with a power motor for driving the power lead screw to rotate periodically.

[0015] By adopting the above technical solution, the power motor rotates periodically, thereby driving the lifting block to lift and lower periodically. When the lifting block lifts and lowers, since it is connected to the sampling plate, it drives the sampling plate to lift and lower, realizing periodic sampling. At the same time, when the lifting block lifts and lowers, it drives the flocculation plate to lift and lower, periodically extruding the flocculant into the detection box for flocculation, realizing the detection within one sampling cycle; And through the double-thread provided on the power lead screw, when the power lead screw rotates, it drives the lifting block to reciprocally lift and lower on the power lead screw. The lifting and lowering of the lifting block is one cycle, thereby realizing the sampling and drainage of the sampling pipe.

[0016] Optionally, a spiral blade is rotatably arranged in the air flotation pipe. The spiral blade fits the inner peripheral wall of the air flotation pipe, and the spiral blade is connected to the power lead screw. The air flotation pipe is provided with an air inlet, and the air inlet is communicated with the outside of the floating seat.

[0017] By adopting the above technical solution, when the power component drives the lifting block to lift and lower, it drives the spiral blade to rotate. Since the spiral blade always fits against the inner peripheral wall of the air flotation tube, when the spiral blade rotates, it compresses the gas into the detection box to generate gas. The gas enters the detection box through the air inlet, and the particulate matter is suspended through air flotation.

[0018] Since the air flotation tube is connected to the bottom of the side wall of the detection box, when the sampling plate descends to the bottom side of the detection box, at this time the height of the sampling plate is lower than the height of the air flotation tube, and the gas discharged from the air flotation tube is located at the opening of the detection box, thus reducing the problem of insufficient subsequent sampling caused by continuous air supply.

[0019] Optionally, the additional component includes a rotating blade rotatably arranged on the floating seat and a rotating rod connected to the rotating blade. A second feeding box is provided on the floating seat, and a flocculant is stored in the second feeding box. The second feeding box is connected to the detection box, and a feeding plate is slidably arranged in the second feeding box. The rotating rod is rotatably arranged in the second feeding box, and a double-thread is also provided on the rotating rod. The feeding plate is threadedly arranged on the rotating rod, and a one-way opening and closing member is further provided on the feeding plate.

[0020] By adopting the above technical solution, when there are wind waves in the lake due to wind, the wind waves can roll up the sediments at the bottom of the lake or river, including particulate matter containing various minerals. The resuspension of these particulate matters will increase the mineral concentration in the water body, especially those minerals originally deposited at the bottom. Therefore, when conducting water quality mineral detection, if the water area is affected by wind waves during sampling, the detection results may be on the high side.

[0021] At this time, the rotating blade is driven to rotate by the wind, driving the rotating rod to rotate. The rotating rod drives the feeding plate to lift and lower. Through the one-way opening and closing member provided on the feeding plate, when the feeding plate lifts and lowers, the flocculant in the feeding box is extruded into the collection box for supplementary flocculation, thus reducing the accuracy error problem caused by wind waves.

[0022] Optionally, there are multiple groups of the sampling tubes, and there are also multiple groups of the detection boxes. The depths at which the multiple groups of sampling tubes extend into the water body are inconsistent. A bracket is provided in the floating seat, and the detection box is arranged to lift and slide on the bracket, and a height member for adjusting and fixing the height of the detection box is further provided on the bracket.

[0023] By adopting the above technical solution, the multiple groups of sampling tubes are set, and the depths at which they extend into the water body are inconsistent during detection, comprehensively sampling water bodies at different depths. Since the water quality parameters in the water body often show non-uniformity in the vertical direction, by sampling the water quality at different depths, the accuracy problem of the detection results caused by uneven sampling is reduced; Meanwhile, the height of the detection box is adjusted by the height component, so as to adjust the sampling depth.

[0024] Optionally, the height component includes a sliding rod provided on the bracket, a sliding groove is opened on the detection box, the sliding rod is slidably matched with the sliding groove, an adjusting frame is connected to the lifting block, and a plurality of sampling rods corresponding to the sampling plates one by one are provided on the adjusting frame. The sampling rods are also adjustable in length. A feeding port is opened at the connection between the detection box and the feeding box, and an adjusting member is provided at the feeding port. The adjusting member adjusts the opening width of the feeding port as the height of the detection box changes.

[0025] By adopting the above technical solution, since the particulate matter concentration and the suspended matter concentration are different with different water depths, the influence on the detection accuracy of the mineral content is also different. The particulate matter concentration in the water near the bottom of the lake is higher, so more flocculant is needed. Therefore, the adjusting member is provided to adjust the opening width of the feeding port when the height of the detection box is adjusted, so as to realize the adjustment of the added amount of flocculant.

[0026] Optionally, the adjusting member includes a feeding plate rotatably arranged in the detection box. A feeding gear is provided at the rotating shaft of the feeding plate, a feeding tooth is opened on the sliding rod, and the feeding tooth is meshed with the feeding gear.

[0027] By adopting the above technical solution, when the height of the detection box is adjusted and the detection box slides on the sliding rod, at this time, the feeding gear is meshed with the feeding tooth, so when detecting lakes and water samples at different depths, the width of the feeding port is automatically adjusted at this time. Since the particulate matter concentration in the water deeper into the lake is higher affected by the wind and waves, by adjusting the opening size of the feeding port, the accuracy of water quality mineral detection is improved.

[0028] In summary, the present application includes at least one of the following beneficial technical effects: 1. By providing the floating seat, the fixed rod, the sampling assembly and the flocculation assembly, it is convenient to sample and detect the water body at the center of the lake. At the same time, the flocculation assembly automatically flocculates the sampled water body, so as to improve the detection accuracy of the water body; 2. By additionally providing the rotating blades and the additional adding assembly, when the wind and waves on the lake surface are large, an additional amount of flocculant is added, so as to improve the detection accuracy of the water body; 3. By providing the feeding plate, when sampling and detecting the water body at different heights and detecting minerals, the opening of the feeding port is adjusted, so as to adaptively add flocculant according to the water body at different heights. Description of the Drawings

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 It is a schematic diagram of the connection structure inside the floating seat; Figure 3 It is a schematic diagram of the internal connection structure of the floating seat from another perspective; Figure 4 It is a schematic diagram of the connection structure inside the floating seat; Figure 5 It is a schematic diagram of the connection structure of the additional component.

[0030] Reference numerals: 1, floating seat; 11, detection device; 12, fixed rod; 13, photovoltaic power generation component; 14, wireless transmission component; 2, sampling component; 21, sampling tube; 22, detection box; 23, detection probe; 24, mounting hole; 25, sampling plate; 26, power component; 261, power motor; 262, power lead screw; 263, lifting block; 264, bracket; 3, flocculation component; 31, liquid storage tank; 32, flocculation plate; 33, air flotation tube; 34, air supply component; 341, spiral blade; 4, additional component; 41, rotating blade; 42, rotating rod; 43, feeding box; 44, additional plate; 45, one-way opening and closing component; 46, sliding rod; 47, sliding groove; 48, sampling rod; 49, feeding port; 5, adjusting component; 51, feeding plate; 53, feeding gear. Detailed implementation manners

[0031] The following further elaborates on the present application in conjunction with the attached Figures 1-5 drawings for a more detailed description.

[0032] An embodiment of the present application discloses a water quality mineral content detection device. Referring to Figure 1 and Figure 2 , a water quality mineral content detection device includes a fixed rod 12 fixedly inserted at the center of the lake and a floating seat 1 connected to the fixed rod 12 by a rope. The floating seat 1 floats on the surface of the lake. The floating seat 1 is provided with a photovoltaic power generation component 13 and a wireless transmission component 14. The photovoltaic power generation component 13 is used to supply power to the detection device 11 and the wireless transmission component 14. In the present application, the photovoltaic power generation component 13 is a solar panel and a storage battery. The wireless transmission component 14 is used to transmit and upload the detection data of the detection device 11.

[0033] A bracket 264 is provided inside the floating seat 1, and a sampling component 2 is provided inside the floating seat 1. Referring to Figure 1 and Figure 2, the sampling assembly 2 includes a sampling tube 21 disposed on the support 264 and extending into the water body. The sampling tube 21 is vertically arranged. A detection box 22 and a sampling plate 25 are also provided on the support 264. The sampling plate 25 is slidably arranged in the detection box 22, and the sliding direction of the sampling plate 25 is consistent with the height direction of the sampling tube 21. The sampling tube 21 is communicated with the detection box 22. A detection device 11 is fixedly connected in the floating seat 1. In this application, the detection device 11 is a multi-parameter water quality detector. The detection device 11 is connected to a detection probe 23. The detection probe 23 is fixed in the detection box 22 and extends to the bottom side of the detection box 22. An installation hole 24 for the detection probe 23 to penetrate is provided on the sampling plate 25. The sampling plate 25 is in contact with the inner peripheral wall of the detection box 22, and a power member 26 for lifting and adjusting the sampling plate 25 is also provided on the floating seat 1.

[0034] Referring to Figure 1 and Figure 2 , the power member 26 includes a power lead screw 262 rotatably arranged on the floating seat 1 and a lifting block 263 threadedly assembled on the power lead screw 262. A double-thread is provided on the power lead screw 262. A power motor 261 is fixedly connected to one end side of the power lead screw 262 on the floating seat 1. The power motor 261 is electrically connected to the photovoltaic power generation assembly 13, and the lifting block 263 is fixedly connected to the sampling plate 25.

[0035] At the same time, in order to improve the accuracy of water quality detection, multiple groups of sampling tubes 21 and detection boxes 22 are provided. Multiple groups of sampling rods 48 are arranged at intervals along the extending direction of the support 264, and the lengths of adjacent sampling tubes 21 extending into the water body gradually become deeper.

[0036] Since when detecting the mineral content, it is necessary to treat the suspended matter and organic matter in the water quality to reduce the adsorption of suspended matter on minerals and affect the detection results of mineral content. Referring to Figure 2 and Figure 3 , a flocculation assembly 3 is also provided on the floating seat 1. The flocculation assembly 3 includes a liquid storage tank 31 disposed in the floating seat 1 and a communicating pipe communicated with the detection box 22. A flocculant is stored in the liquid storage tank 31. A flocculation plate 32 is slidably arranged in the liquid storage tank 31. The flocculation plate 32 is in contact with the inner peripheral wall of the liquid storage tank 31. The power member 26 drives the flocculation plate 32 to slide periodically to squeeze the flocculant in the liquid storage tank 31 into the detection box 22 periodically. An air flotation pipe 33 communicated with the detection box 22 and a gas supply member 34 for supplying gas to the detection box 22. The air flotation pipe 33 is communicated with the bottom side of the side wall of the detection box 22. A first blocking plate is rotatably connected to the flocculation plate 32. The first blocking plate blocks the continuous movement of the flocculation plate 32. And when the flocculation plate 32 slides towards the bottom side of the liquid storage tank 31, at this time, the first blocking plate opens the flocculation plate 32. When the flocculation plate 32 slides towards the top side of the liquid storage tank 31, at this time, the first blocking plate blocks the flocculation plate 32.

[0037] When the power component 26 drives the sampling plate 25 to rise for water quality sampling, the flocculation plate 32 is synchronously driven to lift and lower. When the flocculation plate 32 rises and falls in the liquid storage tank 31, the flocculant is periodically squeezed into the detection tank 22 to flocculate the water body in the detection tank 22. The provided air flotation pipe 33 supplies air towards the detection tank 22, and the bubbles generated by the air flotation pipe 33 float from the bottom of the detection tank 22, thereby driving the flocculated suspended matter to float to the liquid surface, further accelerating the flocculation of the suspended matter and reducing the detection period.

[0038] At the same time, since air flotation is carried out synchronously with sampling and detection, the air flotation pipe 33 is coaxially arranged with the power lead screw 262, and an air inlet pipe is connected to the air flotation pipe 33. An air inlet is opened on the floating seat 1 and is connected to the air inlet pipe. A spiral blade 341 is rotatably arranged in the air flotation pipe 33, and the spiral blade 341 is fixedly connected to the power lead screw 262. Thus, when the power motor 261 drives the power lead screw 262 to rotate, the spiral blade 341 is driven to rotate. In this application, the spiral blade 341 fits the inner peripheral wall of the air flotation pipe 33, and the spiral blade 341 is in the form of a cage. Thus, when the spiral blade 341 rotates, an air pressure for supplying air towards the detection tank 22 is always generated, improving the flocculation efficiency.

[0039] The water body fluctuations caused by wind and waves roll up the sediments at the bottom of the lake or river and the particulate matter containing various minerals. This particulate matter will increase the mineral concentration in the water body, thereby reducing the detection accuracy. Therefore, a supplementary component 4 is also provided on the floating seat 1. Refer to Figure 4 and Figure 5 , the supplementary component 4 includes a rotating blade 41 rotatably arranged on the floating seat 1 and a rotating rod 42 connected to the rotating blade 41. A second feeding tank 43 is provided on the floating seat 1, and a flocculant is stored in the second feeding tank 43. The second feeding tank 43 is connected to the detection tank 22, and a supplementary plate 44 is slidably arranged in the second feeding tank 43. The rotating rod 42 is rotatably arranged in the second feeding tank 43, and a double-thread is also opened on the rotating rod 42. A feeding plate 51 is threadedly arranged on the rotating rod 42, and a one-way opening and closing member 45 is further provided on the supplementary plate 44.

[0040] The one-way opening and closing member 45 includes a second blocking plate rotatably arranged on the feeding plate 51. When the feeding plate 51 slides down towards the bottom side of the second feeding tank 43, the feeding plate 51 is in a blocking state at this time. When the feeding plate 51 slides up towards the top side of the second feeding tank 43, the feeding plate 51 is in an open state at this time.

[0041] The wind blows the rotating blade 41 to rotate, driving the rotating rod 42 to rotate. The rotating rod 42 drives the feeding plate 51 to lift and lower. By means of the one-way opening and closing member 45 provided on the feeding plate 51, when the feeding plate 51 lifts and lowers, the flocculant in the feeding tank 43 is squeezed out into the collection tank for supplementary flocculation, thereby reducing the accuracy error problem caused by wind and waves.

[0042] Since the water quality parameters in the water body often show non-uniformity in the vertical direction, the detection box 22 is slidably arranged on the bracket 264. A sliding rod 46 is fixedly connected to the bracket 264. A sliding groove 47 is formed in the detection box 22. The sliding rod 46 is slidably adapted to the sliding groove 47. And an adjusting frame is fixedly connected to the lifting block 263. A plurality of sampling rods 48 fixedly connected to the sampling plate 25 one by one are arranged on the adjusting frame. Since the detection contact is connected to the detection device 11 through a cable, the sampling rod 48 is set to be adjustable in length. When adjusting the height of the detection box 22, the detection contact is adjusted along with the height of the detection box 22, so as to perform normal water quality detection.

[0043] Meanwhile, when performing water quality detection, a feeding port 49 is formed at the connection between the detection box 22 and the second feeding box 43. An adjusting member 5 for adjusting the opening width according to the height change of the detection box 22 is arranged at the feeding port 49. The adjusting member 5 includes a feeding plate 51 rotatably arranged in the detection box 22. A feeding gear 53 is arranged at the rotating shaft of the feeding plate 51. Feeding teeth are formed on the sliding rod 46. The feeding teeth are meshed with the feeding gear 53.

[0044] Meanwhile, in order to clean the flocculants on the bottom wall of the sampling plate 25 and reduce the influence on subsequent water quality mineral detection, a cleaning plate is rotatably arranged at the bottom side of the sampling plate 25. A limiting block is fixedly connected to the outer peripheral wall of the cleaning plate. A limiting groove is formed in the inner wall of the detection box 22. The limiting groove is arranged in a spiral shape. The limiting block is slidably adapted to the limiting groove.

[0045] Thus, during the ascending and descending process of the sampling plate 25, the cleaning plate is driven to rotate in contact with the bottom side of the sampling plate 25, thereby realizing the cleaning of the bottom side of the sampling plate 25 and improving the accuracy of the detection result.

[0046] The implementation principle of the water quality mineral content detection device according to the embodiment of the present application is as follows: When detecting the water quality minerals in a lake, the floating seat 1 is fixed at the center of the lake through the fixing rod 12. At this time, the sampling pipe 21 located at the bottom side of the floating seat 1 extends into the lake. Then, the power screw rod 262 is driven to lift and lower by the power motor 261, so as to drive the sampling plate 25 to lift and lower periodically. When the sampling plate 25 ascends, a negative pressure is generated in the detection box 22 at this time, and the water in the lake is sucked into the detection box 22. Detection is performed by inserting the detection head into the water body in the detection box 22. At the same time, the flocculation plate 32 ascends at this time, squeezing the flocculant into the detection box 22, and the spiral blade 341 rotates to provide inflation into the detection box 22 to generate bubbles, thereby improving the flocculation effect and the flocculation period. According to the reading of the detection probe 23, the water quality mineral content can be obtained.

[0047] The above are all preferred embodiments of this application, and the protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A water quality mineral content detection device, characterized in that: The invention comprises a floating seat (1), a detection device (11) arranged in the floating seat (1), and a fixed rod (12) fixed in the center of a lake, wherein the floating seat (1) is connected to the fixed rod (12), a photovoltaic power generation component (13) and a wireless transmission component (14) are arranged on the floating seat (1), the photovoltaic power generation component (13) supplies power to the detection device (11) and the wireless transmission component (14), and the wireless transmission component (14) transmits and uploads the detection data of the detection device (11), and a sampling component (2) and a flocculation component (3) are arranged on the floating seat (1); The sampling assembly (2) comprises a sampling tube (21) extending into the water body, a detection box (22) arranged in the floating seat (1), a sampling plate (25) arranged in the detection box (22) in a lifting manner, and a power member (26) for periodically lifting and lowering the sampling plate (25); the sampling tube (21) is connected to the detection box (22); a detection probe (23) is provided at the bottom end of the detection device (11); a mounting hole (24) for the detection probe (23) to penetrate is provided on the sampling plate (25); the detection probe (23) extends into the detection box (22); and the sampling plate (25) is in contact with the inner peripheral wall of the detection box (22); The flocculation assembly (3) comprises a liquid storage tank (31) disposed in the floating seat (1) and a connecting pipe connected to the detection box (22); a flocculant is stored in the liquid storage tank (31); a flocculation plate (32) is slidably disposed in the liquid storage tank (31); the flocculation plate (32) is in contact with the inner peripheral wall of the liquid storage tank (31); a power member (26) drives the flocculation plate (32) to slide and periodically squeeze the flocculant in the liquid storage tank (31) into the detection box (22); The flocculation assembly (3) further comprises an air flotation tube (33) connected to the detection box (22) and an air supply member (34) for supplying air. The air flotation tube (33) is connected to the detection box (22). A refilling assembly (4) for replenishing flocculants according to the wind speed on the lake surface is also provided on the floating seat (1).

2. A water quality mineral content detection device according to claim 1, characterized in that: The power member (26) comprises a power screw (262) rotatably arranged on the floating seat (1) and a lifting block (263) threadedly assembled on the power screw (262); the lifting block (263) is connected to both the sampling plate (25) and the flocculation plate (32); a bidirectional thread is provided on the power screw (262); and a power motor (261) for driving the power screw (262) to rotate periodically is also provided on the floating seat (1).

3. A water quality mineral content detection device according to claim 2, characterized in that: A spiral blade (341) is rotatably arranged inside the air flotation tube (33), the spiral blade (341) is in contact with the inner peripheral wall of the air flotation tube (33), and the spiral blade (341) is connected to the power screw rod (262). An air inlet is provided on the air flotation tube (33), and the air inlet is communicated with the outside of the floating seat (1).

4. A water quality mineral content detection device according to claim 3, characterized in that: The re-adding component (4) comprises a rotating blade (41) rotatably arranged on the floating seat (1) and a rotating rod (42) connected to the rotating blade (41); a second feeding box (43) is provided on the floating seat (1); a flocculant is stored in the second feeding box (43); the second feeding box (43) is connected to the detection box (22); a re-adding plate (44) is slidably arranged in the second feeding box (43); the rotating rod (42) is rotatably arranged in the second feeding box (43); a bidirectional thread is also provided on the rotating rod (42); the feeding plate (51) is threadedly arranged on the rotating rod (42); and a one-way opening and closing member (45) is also provided on the re-adding plate (44).

5. A water quality mineral content detection device according to claim 4, characterized in that: The sampling tubes (21) are provided in a plurality of groups, and the detection boxes (22) are also provided in a plurality of groups. The depths at which the sampling tubes (21) are inserted into the water body are inconsistent. A bracket (264) is provided in the floating seat (1). The detection box (22) is arranged on the bracket (264) in a lifting and sliding manner. The bracket (264) is also provided with a height member for adjusting and fixing the height of the detection box (22).

6. A water quality mineral content detection device according to claim 5, characterized in that: The height member comprises a sliding rod (46) arranged on the bracket (264); a sliding groove (47) is provided on the detection box (22); the sliding rod (46) is slidably matched with the sliding groove (47); an adjustment frame is connected to the lifting block (263); a plurality of sampling rods (48) are provided on the adjustment frame and are connected to the sampling plates (25) in a one-to-one correspondence; the sampling rods (48) are also length-adjustable; a feeding port (49) is provided at a connection between the detection box (22) and the feeding box (43); an adjusting member (5) is provided at the feeding port (49); the adjusting member (5) adjusts the opening width of the feeding port (49) as the height of the detection box (22) changes.

7. A water quality mineral content detection device according to claim 6, characterized in that: The adjusting member (5) comprises a feeding plate (51) rotatably arranged in the detection box (22), a feeding gear (53) being provided at the rotation axis of the feeding plate (51), and a feeding tooth being provided on the sliding rod (46), the feeding tooth being meshed with the feeding gear (53).

8. A water quality mineral content detection device according to claim 7, characterized in that: The inner wall of the detection box (22) is provided with a limit groove (55), the limit groove (55) being arranged in a spiral shape, a cleaning plate being rotatably provided on the bottom side of the sampling plate (25), a limit block (56) being fixedly connected to the outer peripheral wall of the cleaning plate, the limit block (56) being slidably adapted to the limit groove (55).

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