Water quality detection and collection equipment and collection method

Abstract

The invention discloses water quality detection and collection equipment and a collection method, the water quality detection and collection equipment comprises a mounting plate and a sampling stabilizer bar, the sampling stabilizer bar is movably mounted at the bottom of the mounting plate, and the water quality detection and collection equipment further comprises a floating unwinding mechanism mounted on the mounting plate and used for floating the mounting plate and performing winding and unwinding control on the sampling stabilizer bar. The device can perform multi-time multi-point collection, select and collect water samples of different depths in advance according to different water quality changes, and perform dynamic sampling to prevent impurities from being attached to detection sampling positions, so as to solve the problems that existing traditional water sample collection devices are mostly in a single-point and single-time collection mode, water quality evaluation may have deviation, and the detection accuracy is high. The problems that potential water quality pollution hidden dangers cannot be found in time, sampling ends are in a static state and are prone to being wound, and attachments affecting water quality detection data are prone to being attached to the surfaces are solved.

Description

Technical Field

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

[0002] With the acceleration of industrialization and the growth of population, water pollution is becoming increasingly serious. Water quality testing is crucial to ensuring water resource safety, maintaining ecological balance and human health. As a basic tool for obtaining accurate water quality data, the performance and function of water quality testing and collection equipment directly affect the reliability of the test results.

[0003] At present, the common water quality detection and collection equipment on the market has some limitations in practical applications. On the one hand, traditional water sample collection devices are mostly single-point, single-time collection modes. For example, when testing in larger water bodies such as rivers or lakes, water samples are only collected at a fixed location and time, and the data obtained cannot fully reflect the changes in water quality at different depths, locations, and time periods in the entire water body. This may lead to deviations in the assessment of water quality, and it is impossible to discover potential water pollution risks in a timely manner. In addition, the sampling ends are all statically put into the water, which is easy to be entangled and the surface is easy to be attached with attachments that affect the water quality detection data. Summary of the invention

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a water quality detection and collection device and a collection method and a method thereof, which can collect water multiple times and at multiple points, can choose to take water samples of different depths in advance according to different water quality changes, and perform dynamic sampling to avoid impurities from adhering to the detection sampling point, so as to solve the problems that the existing traditional water sample collection devices are mostly single-point and single-time collection modes, the water quality assessment may be biased, and potential water pollution hazards cannot be discovered in time, and the sampling ends are all statically put into the water, which are easily entangled and the surface is easily attached with attachments that affect the water quality detection data.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water quality detection and collection device, comprising a mounting plate and a sampling stabilizing rod, wherein the sampling stabilizing rod is movably mounted on the bottom of the mounting plate, and further comprising a floating unwinding mechanism, which is mounted on the mounting plate and is used to float the mounting plate and control the reeling and unwinding of the sampling stabilizing rod;

[0006] The water quality detection position adjustment mechanism is arranged on both sides of the mounting plate and is used to drive the mounting plate to adjust the horizontal plane position of the water quality detection on the water surface;

[0007] A sampling tray is fixedly mounted at the bottom of the sampling stabilizing rod, and a plurality of sets of electromagnetic sampling mechanisms are arranged on the sampling tray and are used to enable the collection of different water samples at different depths;

[0008] A connecting pipe is fixedly installed at the bottom of the sampling tray, a water quality detection mounting block is fixedly installed at the bottom of the connecting pipe, an upper protective cage and a lower protective cage are respectively provided at the top and bottom of the sampling tray, and a dual driving mechanism is fixedly installed on the connecting pipe;

[0009] A water quality detection mechanism is arranged inside the water quality detection installation block and is used to detect water quality data at different depths;

[0010] The anti-entanglement cage rotating mechanism is arranged on one side of the connecting pipe and is used to rotate the lower protection cage and the upper protection cage to form turbulence on the surface of the lower protection cage;

[0011] The detection end turbulence cleaning mechanism is used to perform turbulence flushing on the detection end at the bottom of the water quality detection mounting block to flush away attachments during detection.

[0012] As a preferred embodiment of the present invention, the floating unwinding mechanism includes a floating airbag, a winding frame, a first winding shaft, a first worm gear, a sampling rope, a first worm, a first motor and a lithium battery. The floating airbag is fixedly mounted on the front and rear sides of the bottom of the mounting plate, the winding frame is fixedly mounted on the top rear side of the mounting plate, the first winding shaft is rotatably mounted inside the winding frame, the first worm gear is fixedly mounted on one end of the first winding shaft, the first worm gear is fixedly mounted on the output end of the first motor, the first worm gear is meshed with the first worm gear, the lithium battery is fixedly mounted on the front side of the top of the mounting plate, the sampling rope is wrapped around the surface of the first winding shaft, one end is fixedly mounted on the first winding shaft, and the other end is fixedly mounted on the sampling stabilization rod.

[0013] As a preferred embodiment of the present invention, the water quality detection position adjustment mechanism includes a winding box, a bracket, a second motor, a second worm, a second worm wheel, a second winding shaft and a transverse driving rope, the winding box is provided with two groups and is arranged on both sides of the mounting plate, the bracket is fixedly mounted on one side of the top of the winding box, the second motor is fixedly mounted on one side of the bracket, the second worm is fixedly mounted on the output end of the second motor and meshes with the second worm wheel, the second worm wheel is fixedly mounted on one end of the second winding shaft close to the second motor, the second winding shaft is rotatably mounted at the inner center of the winding box, one end of the transverse driving rope is wrapped around the surface of the second winding shaft, a transverse block is fixedly mounted at the inner center of the mounting plate, and the other end of the transverse driving rope is fixedly mounted on the transverse block.

[0014] As a preferred embodiment of the present invention, the electromagnetic sampling mechanism includes a sampling box, a slider, a one-way valve, a solenoid valve and a clamping assembly. The sampling boxes are provided with six groups and are distributed in a circular shape and equidistantly on the top of the sampling tray. The slider is fixedly installed on the bottom of the sampling box. The top of the sampling tray is provided with a sliding groove that slides with the slider. The one-way valve is connected to the top of the sampling box, and the one-way transmission direction is set from bottom to top. The solenoid valve is connected to the bottom of the sampling box. The wire of the solenoid valve passes through the sampling tray and enters the interior of the sampling stabilizing rod and then is coiled and woven with the sampling rope, and is electrically connected to the lithium battery. The clamping assembly is arranged at the top of the sampling tray and is used to fix the position of the six groups of sampling boxes.

[0015] As a preferred embodiment of the present invention, the dual drive mechanism includes a connecting block, a third motor, a first gear, a second gear and a drive shaft, the connecting block is fixedly mounted on one side of the connecting pipe and is located between the sampling box and the water quality detection mounting block, the third motor is fixedly mounted on the bottom of the connecting block, the drive shaft is fixedly mounted on the output end of the third motor, the first gear is fixedly mounted on the top of the drive shaft surface, and the second gear is fixedly mounted on the bottom of the drive shaft surface.

[0016] As a preferred embodiment of the present invention, the water quality detection mechanism includes a detection hole, a water quality sensor and a positioning bolt. The detection holes are provided in six groups and are distributed in a ring at the bottom of the water quality detection mounting block. The water quality sensor is inserted into the detection hole. The positioning bolts are provided in six groups and are distributed in a ring at equal distances on the surface of the water quality detection mounting block. The water quality detection mounting block is threadedly connected and used in conjunction with the water quality sensor. A wiring groove is provided on the top of the water quality detection mounting block, and the water quality sensor passes through the wiring groove through a wire and extends to the inside of the connecting pipe. The wire of the water quality sensor is electrically connected to the lithium battery after being coiled with the sampling rope through the inside of the connecting pipe.

[0017] As preferred embodiment of the present invention, the anti-entanglement cage rotation mechanism includes an annular stabilizing frame, a stabilizing slide bar, an inner gear ring, a limiting ring groove, a clamping sleeve, a second spring and a fixing pin. The annular stabilizing frame is symmetrically installed on both sides of the inner gear ring and fixedly installed with the connecting pipe. The stabilizing slide bar is fixedly installed on one side of the annular stabilizing frame close to the inner gear ring, and six groups are arranged in annular shapes and equidistantly distributed. The limiting ring groove is opened at the top and bottom of the inner gear ring and slidably cooperates with the stabilizing slide bar. The clamping sleeve is slidably sleeved on the top of the surface of the sampling stabilizing rod. The fixing pin is threadedly connected Inside the compression sleeve, the second spring sleeve is arranged on the surface of the sampling stabilizing rod and is located between the compression sleeve and the upper protective cage. The two ends of the second spring are respectively fixedly connected to the compression sleeve and the upper protective cage. The compression sleeve is tightened and fixed to the sampling stabilizing rod by a fixing pin. The outer ring of the inner gear ring is fixedly installed with a connecting frame. The top of the connecting frame is plug-fitted with the bottom of the upper protective cage, and the bottom of the connecting frame is detachably installed with the top of the lower protective cage. The connecting frame is provided with twelve groups of outer rings of the inner gear ring distributed in a ring shape with equal distances. The inner gear ring is meshed with the first gear.

[0018] As a preferred embodiment of the present invention, the turbulence cleaning mechanism at the detection end includes a lower gear ring, a gear ring sleeve, a rotation limit column, a third gear, a rotating shaft, a rotating hanging arm, a retaining spring and a stirring plate. The lower gear ring is fixedly mounted on the bottom of the water quality detection mounting block, the gear ring sleeve is rotatably mounted on the bottom of the connecting pipe surface and meshes with the driving shaft, the rotation limit column is rotatably mounted at the bottom center of the water quality detection mounting block through a stepped shaft, the third gear is fixedly mounted on the surface of the rotating shaft and meshes with the lower gear ring, the rotating shaft is rotatably mounted on the bottom of the rotating hanging arm, the stirring plate is fixedly mounted on the surface of the rotating shaft, and the retaining spring is provided in two groups and is symmetrically mounted on the surface of the rotating shaft and located on both sides of the rotating hanging arm.

[0019] As a preferred embodiment of the present invention, the clamping assembly includes a first spring, a locking ring and a positioning protrusion. The first spring is sleeved on the surface of the sampling stabilization rod and is located between the upper protective cage and the locking ring. The locking ring is slidably sleeved on the surface of the sampling stabilization rod. The positioning protrusions are provided in six groups and are fixedly installed in an annular manner at equal intervals on the bottom of the locking ring. The top of the sampling box is provided with a slot that is plugged into and cooperates with the positioning protrusion.

[0020] As a preferred embodiment of the present invention, a collection method of a water quality detection collection device comprises the following steps:

[0021] S1, preliminary preparation: check the power of the lithium battery to ensure that its built-in remote control module can receive commands normally; at the same time, check the connection of the equipment mechanism, and the connection between the sampling stabilizing rod and the mounting plate, the sampling tray and the sampling stabilizing rod, and the protective cage and the connecting frame is stable;

[0022] S2, launching the equipment and adjusting its position: float the mounting plate on the water surface by means of a floating airbag, start the first motor, and use the first worm and the first worm gear to mesh and drive the first reel to unwind the sampling rope, so that the sampling stabilizing rod and related components are lowered to a predetermined depth; start the second motors in the two sets of reel boxes, one set of the second motors drives the second reel to rewind the transverse driving rope through the second worm and the second worm gear, and the other set unwinds, thereby driving the transverse block to move the mounting plate to the target detection position;

[0023] S3, water sample collection: after the equipment reaches the specified depth and position, the solenoid valve at the bottom of the sampling box is opened, and the water sample flows into the sampling box under the one-way conduction of the one-way valve; after the sampling is completed, the solenoid valve is closed, and the negative pressure in the sampling box and the one-way valve seal are used to prevent the water sample from flowing out. There are six sets of electromagnetic sampling mechanisms on the sampling tray, each set of electromagnetic sampling mechanisms includes a sampling box, a slider, a one-way valve, a solenoid valve and a clamping assembly. The slider slides with the slide groove on the sampling tray, and the clamping assembly is used to fix the position of the sampling box;

[0024] S4, water quality detection: water quality at different depths is detected in real time through the water quality sensor through the detection hole; the detection data is transmitted to the microcontroller module built into the lithium battery for processing and storage through the wire through the connecting pipe and the sampling rope. The detection holes are distributed in a ring at the bottom of the water quality detection installation block, and the water quality sensor is inserted into it. The positioning bolts are distributed in a ring at equal intervals on the surface of the water quality detection installation block for installing and removing the water quality sensor, and the water quality sensor wire is electrically connected to the lithium battery after being coiled with the sampling rope inside the wiring groove and the connecting pipe;

[0025] S5, equipment maintenance and guarantee: start the third motor, and its driving shaft drives the first gear to rotate, and the first gear meshes with the inner gear ring, so that the inner gear ring drives the upper protection cage and the lower protection cage to rotate through the connecting frame, which plays a role in avoiding the accumulation of debris, self-cleaning and reducing local interference; at the same time, the driving shaft drives the second gear to rotate, the second gear drives the gear ring sleeve to rotate, the gear ring sleeve drives the rotating arm to rotate, and the third gear meshes with the lower gear ring, so that the rotating shaft rotates, driving the stirring blade to form turbulence, and flushing the sensing diaphragm at the bottom of the water quality detection installation block;

[0026] S6, water sample collection and equipment recovery: after completing the detection and sampling tasks, twist the fixing pin to release the fastening of the compression sleeve and the sampling stabilizing rod, and slide the upper protective cage upward to separate from the connecting frame; slide the locking ring upward to release the positioning protrusion from the sampling box, and take out the sampling box to transfer the water sample; start the first motor to make the first winding shaft reversely wind up the sampling rope, and retract the sampling stabilizing rod and related components; at the same time, start the second motor in the two sets of winding boxes, move the mounting plate to the shore to complete the equipment recovery, wherein the winding box, bracket, second motor, second worm, second worm wheel, second winding shaft and transverse drive rope cooperate, the second motor drives the second worm to rotate, the second worm drives the second worm wheel to rotate, and the second worm wheel drives the second winding shaft to rotate, so as to realize the winding and unwinding of the transverse drive rope, thereby driving the mounting plate to move horizontally.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The device can collect water samples and test water quality parameters at different depths at the same time. Multiple sets of water samples at different depths and corresponding water quality data can be obtained in one operation, greatly improving the detection efficiency. Compared with the traditional single-depth sampling or detection method, there is no need for repeated operations, saving time and labor costs;

[0029] High sampling stability and accuracy: The sampling process is stable through the design of the sampling stabilizing rod, sampling tray and protective cage. In particular, the anti-entanglement cage rotation mechanism effectively avoids the interference of debris accumulation on sampling. At the same time, it realizes the self-cleaning function, reduces local interference, ensures that the collected water samples are more representative, and improves the accuracy of the test results.

[0030] Maintenance of the detection end and extension of service life: The turbulence cleaning mechanism at the detection end forms turbulence at the detection end of the water quality sensor to flush the sensing diaphragm, reduce impurity adhesion and pollution, extend the service life of the sensor, reduce the maintenance cost of the equipment, and at the same time improve the detection accuracy and make the detection results more reliable;

[0031] Position adjustment and operational convenience: The water quality detection position adjustment mechanism can realize the flexible movement of the equipment on the water surface, which is convenient for detection at different positions. Moreover, the equipment can be operated through the remote control module. Combined with the various intelligent control modules built into the lithium battery, a series of operations such as starting, stopping, position adjustment, sampling and detection of the equipment can be realized remotely, which greatly improves the convenience of operation and is suitable for various complex environments and different detection needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of the present invention;

[0033] Figure 2 For the present invention Figure 1A schematic diagram of a three-dimensional structure from another perspective;

[0034] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0035] Figure 4 It is a schematic diagram of the explosion three-dimensional structure of the lower protection cage and the upper protection cage of the present invention;

[0036] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0037] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the sampling tray of the present invention;

[0038] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0039] Figure 8 For the present invention Figure 6 A schematic diagram of a three-dimensional structure viewed from above;

[0040] Fig. 9 It is a schematic diagram of the three-dimensional structure of the rotating hanging arm and the rotating shaft of the present invention.

[0041] In the figure: 1, mounting plate; 11, floating airbag; 2, winding frame; 21, first winding shaft; 22, first worm gear; 23, sampling rope; 24, first worm; 25, first motor; 26, lithium battery; 201, transverse block; 3, sampling stabilizing rod; 301, first spring; 302, locking ring; 3021, positioning protrusion; 303, pressing sleeve; 304, second spring; 305, fixing pin; 31, sampling tray; 32, sampling box; 321, slider; 322, one-way valve; 323, solenoid valve; 33, connecting pipe; 331, annular stabilizing frame; 3310, stabilizing slide rod; 332, connecting block; 3321, third motor; 3322, first gear ; 3323, second gear; 3324, drive shaft; 33221, inner gear ring; 3311, limit ring groove; 34, water quality detection mounting block; 341, lower gear ring; 342, detection hole; 343, water quality sensor; 3411, gear ring sleeve; 3412, rotation limit column; 3413, third gear; 3414, rotating shaft; 34141, stirring blade; 34140, retaining spring; 3415, rotating hanging arm; 3401, positioning bolt; 4, winding box; 41, bracket; 42, second motor; 43, second worm; 44, second worm wheel; 45, second winding shaft; 46, transverse driving rope; 5, lower protective cage; 51, upper protective cage; 52, connecting frame. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figures 1 to 9 As shown, a water quality detection and collection device provided by the present invention includes a mounting plate 1 and a sampling stabilizing rod 3, wherein the sampling stabilizing rod 3 is movably mounted at the bottom of the mounting plate 1, and further includes a floating unwinding mechanism, which is mounted on the mounting plate 1 and is used to float the mounting plate 1 and to control the reeling and unwinding of the sampling stabilizing rod 3;

[0044] A sampling tray 31 is fixedly mounted at the bottom of the sampling stabilizing rod 3. A plurality of electromagnetic sampling mechanisms are arranged on the sampling tray 31 and are used to enable the collection of different water samples at different depths.

[0045] A connecting pipe 33 is fixedly installed at the bottom of the sampling tray 31, a water quality detection mounting block 34 is fixedly installed at the bottom of the connecting pipe 33, an upper protective cage 51 and a lower protective cage 5 are respectively provided at the top and bottom of the sampling tray 31, and a dual driving mechanism is fixedly installed on the connecting pipe 33.

[0046] refer to Figure 1 and Figure 2 The floating unwinding mechanism includes a floating airbag 11, a winding frame 2, a first winding shaft 21, a first worm gear 22, a sampling rope 23, a first worm 24, a first motor 25 and a lithium battery 26. The floating airbag 11 is fixedly installed on the front and rear sides of the bottom of the mounting plate 1, the winding frame 2 is fixedly installed on the top rear side of the mounting plate 1, the first winding shaft 21 is rotatably installed inside the winding frame 2, the first worm gear 22 is fixedly installed on one end of the first winding shaft 21, the first worm gear 24 is fixedly installed on the output end of the first motor 25, the first worm gear 24 is meshed with the first worm gear 22, and the lithium battery 26 is fixedly installed on the front side of the top of the mounting plate 1. The sampling rope 23 is wound around the surface of the first winding shaft 21, one end of which is fixedly installed on the first winding shaft 21, and the other end is fixedly installed on the sampling stabilizing rod 3.

[0047] As a technical optimization scheme of the present invention, the floating airbag 11 can float the mounting plate 1 on the water surface, and the winding frame 2 can cooperate with the first winding shaft 21 to coil the sampling rope 23, so that the first motor 25 can be started and the first worm 24 can be driven to rotate through the output end, and then the first worm 24 can drive the first worm wheel 22, and then the first winding shaft 21 can be rotated through the first worm wheel 22, so that the first winding shaft 21 drives the sampling rope 23 to be wound and unwound, and the lithium battery 26 can provide power to enable the normal operation of the first motor 25, and the lithium battery 26 has a built-in microcontroller module, a relay or electronic switch module, a remote control module, and a signal transmission and conversion module, so that the microcontroller module is responsible for receiving and processing various signals, controlling the opening and closing of other electrical components, and communicating with the remote control module, etc. Run the pre-written program, connect with other modules through the input and output interface GPIO, output high and low level signals to control devices such as relays or electronic switches according to the received signals and program logic, so as to realize the opening and closing control of other electrical devices, and realize the opening and closing control of the first motor 25, the second motor 42, the solenoid valve 323, the third motor 3321 and the water quality sensor 343; the relay or electronic switch module is used to control the power on and off of other electrical devices to realize the opening and closing control of electrical devices; the remote control module is used to realize the remote control of the lithium battery system, receive the remotely sent instructions, and transmit them to the microcontroller module to realize the remote control start and other functions; the signal transmission and conversion module is used to transmit, convert and condition various signals to ensure that different modules can communicate and cooperate correctly.

[0048] refer to Figure 1 and Figure 2 , a water quality detection position adjustment mechanism is arranged on both sides of the mounting plate 1, and is used to drive the mounting plate 1 to adjust the horizontal plane position of the water quality detection on the water surface; the water quality detection position adjustment mechanism includes a winding box 4, a bracket 41, a second motor 42, a second worm 43, a second worm gear 44, a second winding shaft 45 and a transverse driving rope 46. The winding box 4 is provided with two groups and is arranged on both sides of the mounting plate 1. The bracket 41 is fixedly mounted on one side of the top of the winding box 4, the second motor 42 is fixedly mounted on one side of the bracket 41, the second worm 43 is fixedly mounted on the output end of the second motor 42, and is meshed with the second worm gear 44, the second worm gear 44 is fixedly mounted on one end of the second winding shaft 45 close to the second motor 42, the second winding shaft 45 is rotatably mounted at the inner center of the winding box 4, one end of the transverse driving rope 46 is wound around the surface of the second winding shaft 45, a transverse block 201 is fixedly mounted at the inner center of the mounting plate 1, and the other end of the transverse driving rope 46 is fixedly mounted on the transverse block 201.

[0049] As a technical optimization scheme of the present invention, the transverse driving rope 46 is wound up by cooperating with the second winding shaft 45 through the winding box 4, and the second worm 43 can be driven to rotate by starting the second motor 42, and then the second worm 43 drives the second worm wheel 44 to rotate, and the second worm wheel 44 drives the second winding shaft 45 to rotate to realize the winding and unwinding of the transverse driving rope 46, and then in the process of winding and unwinding, the transverse driving rope 46 drives the transverse block 201 to move horizontally in the horizontal plane, and then the transverse block 201 drives the mounting plate 1 to change the detection position on the water surface, and through the coordinated use of two groups of winding boxes 4, one for winding and the other for unwinding, stable adjustment of the mounting plate 1 is achieved. In some rivers, the winding box 4 can be fixedly placed, and then later on, the second motor 42 can be remotely started to achieve dynamic detection and sampling at different time periods, positions and depths. After the sampling is completed, it is driven to the shore and the sampling box 32 is folded up for use.

[0050] refer to Figure 6 and Figure 8 The electromagnetic sampling mechanism includes a sampling box 32, a slider 321, a one-way valve 322, an electromagnetic valve 323 and a clamping assembly. The sampling box 32 is provided with six groups, and is distributed in a circular shape and equidistantly on the top of the sampling tray 31. The slider 321 is fixedly installed at the bottom of the sampling box 32. The top of the sampling tray 31 is provided with a slide groove that slides with the slider 321. The one-way valve 322 is connected to the top of the sampling box 32, and the one-way transmission direction is set from bottom to top. The electromagnetic valve 323 is connected to the bottom of the sampling box 32. The wire of the electromagnetic valve 323 passes through the sampling tray 31 into the interior of the sampling stabilizing rod 3 and then is coiled and woven with the sampling rope 23, and is electrically connected to the lithium battery 26. The clamping assembly is arranged at the top of the sampling tray 31 and is used to fix the position of the six groups of sampling boxes 32.

[0051] As a technical optimization scheme of the present invention, when sampling is required, the underwater negative pressure state one-way valve 322 can also prevent external water from entering the sampling box 32 in advance through the one-way dredging function. When sampling is required, the solenoid valve 323 is opened to allow water to flow into the sampling box 32. After sampling is completed, the solenoid valve 323 is closed. At this time, negative pressure is formed again in the sampling box 32, and the water will not continue to flow out of the sampling box 32. Since the spring force inside the one-way valve 322 and the seal can seal the opposite conveying direction, the stability of the sampling work can be guaranteed. When the sampling is completed, one or more groups of sampling boxes 32 can be unlocked through the clamping assembly, so that the sampling box 32 can be taken out for further water quality testing, and the slider 321 can cooperate with the slide groove to allow the sampling box 32 to be inserted into the sampling tray 31, and then cooperate with the clamping assembly to prevent each group of sampling boxes 32 from detaching from the sampling tray 31.

[0052] refer to Figure 8 The dual drive mechanism includes a connecting block 332, a third motor 3321, a first gear 3322, a second gear 3323 and a driving shaft 3324. The connecting block 332 is fixedly mounted on one side of the connecting pipe 33 and is located between the sampling box 32 and the water quality detection mounting block 34. The third motor 3321 is fixedly mounted on the bottom of the connecting block 332. The driving shaft 3324 is fixedly mounted on the output end of the third motor 3321. The first gear 3322 is fixedly mounted on the top of the surface of the driving shaft 3324. The second gear 3323 is fixedly mounted on the bottom of the surface of the driving shaft 3324.

[0053] As a technical optimization solution of the present invention, the third motor 3321 can be installed through the connecting block 332, and by starting the third motor 3321, the driving shaft 3324 can be driven to rotate, so that the driving shaft 3324 can drive the first gear 3322 and the second gear 3323 to rotate synchronously. At this time, the anti-entanglement cage rotation mechanism can be driven to work through the first gear 3322, and then the turbulence cleaning mechanism at the detection end can be driven to work through the second gear 3323.

[0054] refer to Figure 8 , a water quality detection mechanism is arranged inside the water quality detection mounting block 34, and is used to detect water quality data at different depths; the water quality detection mechanism includes a detection hole 342, a water quality sensor 343 and a positioning bolt 3401, the detection hole 342 is provided with six groups, and is distributed in a ring at the bottom of the water quality detection mounting block 34, the water quality sensor 343 is plugged into the detection hole 342, six groups of positioning bolts 3401 are arranged, and are distributed in a ring at equal distances on the surface of the water quality detection mounting block 34, and the water quality detection mounting block 34 is threadedly connected and used in conjunction with the water quality sensor 343, a wiring groove is provided on the top of the water quality detection mounting block 34, and the water quality sensor 343 passes through the wiring groove through a wire and extends to the inside of the connecting pipe 33, and the wire of the water quality sensor 343 is electrically connected to the lithium battery 26 after being coiled with the sampling rope 23 through the inside of the connecting pipe 33.

[0055] As a technical optimization scheme of the present invention, the detection hole 342 can facilitate the installation of the water quality sensor 343 and the detection of the detection end of the solenoid valve 323. At the same time, the positioning bolt 3401 can facilitate the installation and disassembly of the water quality sensor 343. Multiple groups of water quality sensors 343 are installed at the same time, and multiple groups of data can be detected at the same time, which is convenient for the integration of water quality data. Parameters such as dissolved oxygen, temperature, conductivity, pH value and other parameters in water may vary at different depths due to factors such as light, aquatic biological activity, and water flow. By quickly acquiring these data through sensors, the approximate water quality distribution can be understood, so that sampling can be carried out in a targeted manner, avoiding blind sampling at all depths, thereby improving sampling efficiency, and also helping to more accurately obtain water samples that can represent different water quality characteristic areas. For example, in a lake, if the sensor detects that the dissolved oxygen in a certain depth range suddenly drops, water samples can be collected in this depth range to analyze whether there are eutrophication or other pollution problems. The hollow design of the connecting tube 33 and the hole in the center of the sampling tray 31 can facilitate the wires of the sensor and the third motor 3321 to pass through and be electrically connected to the lithium battery 26 to ensure operational stability.

[0056] refer to Figure 4 , Figure 5 and Figure 8 , the anti-entanglement cage rotation mechanism is arranged on one side of the connecting pipe 33 and is used to rotate the lower protection cage 5 and the upper protection cage 51 to form turbulence on the surface of the lower protection cage 5; the anti-entanglement cage rotation mechanism includes an annular stabilizing frame 331, a stabilizing slide bar 3310, an inner gear ring 33221, a limiting ring groove 3311, a clamping sleeve 303, a second spring 304 and a fixing pin 305, the annular stabilizing frame 331 is symmetrically installed on both sides of the inner gear ring 33221 and is fixedly installed with the connecting pipe 33, the stabilizing slide bar 3310 is fixedly installed on one side of the annular stabilizing frame 331 close to the inner gear ring 33221, and six groups are arranged in annular equidistant distribution, the limiting ring groove 3311 is opened at the top and bottom of the inner gear ring 33221, and slides with the stabilizing slide bar 3310, and the clamping sleeve 30 The sliding sleeve 303 is arranged on the top of the surface of the sampling stabilizing rod 3, the fixing pin 305 is threadedly connected to the inside of the pressing sleeve 303, the second spring 304 is sleeved on the surface of the sampling stabilizing rod 3, and is located between the pressing sleeve 303 and the upper protective cage 51, the two ends of the second spring 304 are fixedly connected to the pressing sleeve 303 and the upper protective cage 51 respectively, the pressing sleeve 303 is tightened and fixed to the sampling stabilizing rod 3 through the fixing pin 305, the outer ring of the inner gear ring 33221 is fixedly installed with a connecting frame 52, the top of the connecting frame 52 is plug-fitted with the bottom of the upper protective cage 51, the bottom of the connecting frame 52 is detachably installed with the top of the lower protective cage 5, the connecting frame 52 is provided with twelve groups of outer rings which are equidistantly distributed in an annular shape on the inner gear ring 33221, and the inner gear ring 33221 is meshed with the first gear 3322.

[0057] As a technical optimization solution of the present invention, the annular stabilizing frame 331 can cooperate with the stabilizing slide bar 3310 to limit the rotation of the inner gear ring 33221, so that the inner gear ring 33221 is more stable when rotating. The inner gear ring 33221 can be driven to rotate by the first gear 3322 by meshing with the first gear 3322, and the rotation force of the inner gear ring 33221 can be transmitted to the upper protection cage 51 at the top of the connecting frame 52 and the lower protection cage 5 at the bottom through the connecting frame 52, so that the lower protection cage 5 and the upper protection cage 51 rotate with the inner gear ring 33221. When the upper protection cage 51 and the lower protection cage 5 rotate, they can avoid the accumulation of debris, self-clean and reduce local interference. The specific effects are as follows:

[0058] Avoid debris accumulation: There are various debris in the water body, such as branches, water plants, garbage, etc. The rotation of the protective cage can change its relative position with the water flow and debris, making it difficult for the debris to accumulate on the protective cage, reducing the possibility of affecting sampling due to clogging by debris, ensuring that the solenoid valve 323 can normally inlet water, so that the water sample can smoothly enter the sampling box 32;

[0059] Self-cleaning: The rotating lower protection cage 5 and upper protection cage 51 can generate a certain water flow shear force, making it difficult for some tiny particles and algae attached to the surface of the protection cage to adhere, playing a self-cleaning role, maintaining the transparency of the protection cage, ensuring that the water sample can smoothly contact the sampling unit, and improving the accuracy and representativeness of the sampling;

[0060] Reduce local disturbance: There may be local differences in water flow, temperature, dissolved oxygen and other parameters in the water body. The rotation of the protective cage can make the water flow around the sampling unit more uniform, reduce the influence of water flow disturbance and eddy current on sampling caused by fixed position, so as to more accurately measure various parameters of the water body, such as dissolved oxygen, pH, etc., and provide more reliable data for water quality analysis;

[0061] When it is necessary to take out the water sample in the sampling box 32, the fastening fit between the clamping sleeve 303 and the sampling stabilizing rod 3 is released by twisting the fixing pin 305, and then the upper protective cage 51 can be slid upward and separated from the connecting frame 52, and then the sampling box 32 to be sampled is removed through the clamping assembly, and the water sample collected inside the sampling box 32 can be transferred. After the transfer is completed, the corresponding sampling box 32 cooperates with the slider 321 to slide into the sampling tray 31, and then the transferred sampling box 32 is locked through the clamping structure to facilitate sampling again.

[0062] refer to Figure 5 , Figure 8 and Fig. 9, the detection end turbulence cleaning mechanism is used to perform turbulence flushing on the detection end at the bottom of the water quality detection installation block 34 to flush the attachments during the detection; the detection end turbulence cleaning mechanism includes a lower gear ring 341, a gear ring sleeve 3411, a rotation limit column 3412, a third gear 3413, a rotating shaft 3414, a rotating hanging arm 3415, a retaining spring 34140 and a stirring sheet 34141, the lower gear ring 341 is fixedly installed at the bottom of the water quality detection installation block 34, the gear ring sleeve 3411 is rotatably sleeved at the bottom of the surface of the connecting pipe 33, and is meshed with the drive shaft 3324, and the rotation limit column 3412 It is rotatably installed at the bottom center of the water quality detection mounting block 34 through a stepped shaft, the third gear 3413 is fixedly installed on the surface of the rotating shaft 3414 and meshes with the lower gear ring 341, the rotating shaft 3414 is rotatably installed at the bottom of the rotating hanging arm 3415, the stirring piece 34141 is fixedly installed on the surface of the rotating shaft 3414, and two groups of retaining springs 34140 are provided, and are symmetrically installed on the surface of the rotating shaft 3414 and located on both sides of the rotating hanging arm 3415. A counterweight block is fixedly installed at the bottom of the rotating limit column 3412, and the counterweight block is used to ensure that multiple empty sampling boxes 32 will not float.

[0063] As a technical optimization scheme of the present invention, the gear ring sleeve 3411 driven to rotate by the second gear 3323 can rotate around the surface of the connecting pipe 33, and by fixing the lower gear ring 341, the gear ring sleeve 3411 drives the rotating hanging arm 3415 to rotate, and because the third gear 3413 is meshed with the lower gear ring 341, the rotating hanging arm 3415 drives the rotating shaft 3414 to rotate around the axis of the connecting pipe 33, prompting the third gear 3413 to rotate, thereby driving the rotating shaft 3414 to rotate through the third gear 3413, and then the rotation stability of the rotating shaft 3414 is ensured by the limiting of the retaining spring 34140, and then the stirring blade 34141 is driven to rotate through the rotating shaft 3414 to form partial turbulence. This part of slow turbulence can flush the surface of the sensing diaphragm and reduce impurities. The turbulence can prevent the attachment and deposition of pollutants such as suspended matter and grease in sewage from accumulating on the diaphragm, thereby reducing the probability of diaphragm contamination and extending the service life of the sensor. For example, in sensors for long-term monitoring of sewage quality, turbulence can prevent the accumulation of suspended matter, grease and other pollutants in sewage on the diaphragm, maintain the activity and sensitivity of the diaphragm, and improve the detection accuracy. Turbulence helps to make the water sample around the sensing diaphragm more uniform. It can avoid the formation of a boundary layer with a large concentration gradient on the surface of the diaphragm and prevent the concentration of the measured substance in the local area from being too high or too low, so that the results detected by the sensor can better represent the actual situation of the overall water sample, thereby improving the accuracy and reliability of the detection. Taking the pH sensor as an example, if there is no turbulence, the pH value measurement may deviate due to the local accumulation or consumption of acid and base substances near the diaphragm, while turbulence can reduce the occurrence of this situation.

[0064] refer to Figure 6 and Figure 8 The clamping assembly includes a first spring 301, a locking ring 302 and a positioning protrusion 3021. The first spring 301 is sleeved on the surface of the sampling stabilizing rod 3 and is located between the upper protective cage 51 and the locking ring 302. The locking ring 302 is slidably sleeved on the surface of the sampling stabilizing rod 3. There are six groups of positioning protrusions 3021, which are fixedly installed at the bottom of the locking ring 302 in an annular manner with equal spacing. A slot that is plugged into and matched with the positioning protrusion 3021 is opened on the top of the sampling box 32.

[0065] As a technical optimization scheme of the present invention, the first spring 301 uses elastic force to enable the upper protective cage 51 to squeeze the locking ring 302 downward after being matched with the connecting frame 52, so that the positioning protrusion 3021 at the bottom of the locking ring 302 is clamped into the slot on the sampling box 32, thereby locking the sampling box 32. When the sampling box 32 needs to be taken out, it can be opened by sliding the upper protective cage 51 upward, so that the first spring 301 no longer generates force to bounce the locking ring 302 downward, thereby facilitating the user to slide the locking ring 302 upward, and then the corresponding sampling box 32 can be taken out.

[0066] The collection method includes the following steps:

[0067] S1, preliminary preparation: check the power of the lithium battery 26 to ensure that its built-in remote control module can receive commands normally; at the same time, check the structural connection of the equipment, such as the connection between the sampling stabilizing rod 3 and the mounting plate 1, the sampling tray 31 and the sampling stabilizing rod 3, and the protective cage and the connecting frame 52.

[0068] S2, launching the equipment and adjusting its position: the mounting plate 1 is floated on the water surface by means of the floating airbag 11, the first motor 25 is started, and the first worm 24 and the first worm wheel 22 are meshed for transmission, so that the first winding shaft 21 unwinds the sampling rope 23, and the sampling stabilizing rod 3 and related components are lowered to a predetermined depth; the second motors 42 in the two groups of winding boxes 4 are started, one group of the second motors 42 drives the second winding shaft 45 to rewind the transverse driving rope 46 through the second worm 43 and the second worm wheel 44, and the other group unwinds, thereby driving the transverse block 201 to move the mounting plate 1 to the target detection position.

[0069] S3, water sample collection: after the equipment reaches the specified depth and position, the solenoid valve 323 at the bottom of the sampling box 32 is opened, and the water sample flows into the sampling box 32 under the unidirectional conduction of the one-way valve 322; after the sampling is completed, the solenoid valve 323 is closed, and the negative pressure in the sampling box 32 and the one-way valve 322 are used to seal to prevent the water sample from flowing out. There are six groups of electromagnetic sampling mechanisms on the sampling tray 31, and each group of electromagnetic sampling mechanisms includes a sampling box 32, a slider 321, a one-way valve 322, a solenoid valve 323 and a clamping assembly. The slider 321 slides with the slide groove on the sampling tray 31, and the clamping assembly is used to fix the position of the sampling box 32.

[0070] S4, water quality detection: the water quality at different depths is detected in real time through the water quality sensor 343 via the detection hole 342, and the detection parameters include dissolved oxygen, temperature, conductivity, and pH; the detection data is transmitted to the lithium battery 26 through the connecting pipe 33 and the sampling rope 23 via the wire for processing and storage by the built-in microcontroller module, and the detection holes 342 are distributed in a ring at the bottom of the water quality detection mounting block 34, and the water quality sensor 343 is inserted therein, and the positioning bolts 3401 are distributed in a ring at equal intervals on the surface of the water quality detection mounting block 34 for installing and removing the water quality sensor 343, and the wire of the water quality sensor 343 is electrically connected to the lithium battery 26 after being coiled with the sampling rope 23 through the wiring groove and the inside of the connecting pipe 33.

[0071] S5, equipment maintenance and guarantee: start the third motor 3321, and its driving shaft 3324 drives the first gear 3322 to rotate, and the first gear 3322 is meshed with the inner gear ring 33221, so that the inner gear ring 33221 drives the upper protection cage 51 and the lower protection cage 5 to rotate through the connecting frame 52, so as to avoid the accumulation of debris, self-clean and reduce local interference; at the same time, the driving shaft 3324 drives the second gear 3323 to rotate, and the second gear 3323 drives the gear ring sleeve 3411 to rotate, and the gear ring sleeve 3411 drives the rotating hanging arm 3415 to rotate, and the third gear 3413 is meshed with the lower gear ring 341, so as to cause the rotating shaft 3414 to rotate, and drive the stirring blade 34141 to form turbulence, so as to flush the sensing diaphragm at the bottom of the water quality detection mounting block 34.

[0072] S6, water sample collection and equipment recovery: after completing the detection and sampling tasks, twist the fixing pin 305 to release the fastening of the compression sleeve 303 and the sampling stabilizing rod 3, and the upper protective cage 51 slides upward to separate from the connecting frame 52; slide the locking ring 302 upward to release the clamping of the positioning protrusion 3021 on the sampling box 32, and take out the sampling box 32 to transfer the water sample; start the first motor 25 to make the first winding shaft 21 reversely wind up the sampling rope 23, and retract the sampling stabilizing rod 3 and related components; at the same time, start the second motor 42 in the two groups of winding boxes 4, move the mounting plate 1 to the shore to complete the equipment recovery, wherein the winding box 4, the bracket 41, the second motor 42, the second worm 43, the second worm wheel 44, the second winding shaft 45 and the transverse driving rope 46 cooperate, the second motor 42 drives the second worm 43 to rotate, the second worm 43 drives the second worm wheel 44 to rotate, and the second worm wheel 44 drives the second winding shaft 45 to rotate, so as to realize the winding and unwinding of the transverse driving rope 46, thereby driving the mounting plate 1 to move horizontally.

[0073] The working principle and use process of the present invention: equipment preparation stage;

[0074] Power preparation: Check whether the lithium battery 26 has sufficient power, and whether the microcontroller module, relay or electronic switch module, remote control module, and signal transmission and conversion module built into the lithium battery function normally. The lithium battery 26 provides power support for the entire device to ensure that the first motor 25, the second motor 42, the solenoid valve 323, the third motor 3321, and the water quality sensor 343 and other electrical components can operate normally. Among them, the microcontroller module is responsible for receiving and processing various signals, controlling the opening and closing of other electrical components, and communicating with the remote control module; the relay or electronic switch module controls the power on and off of other electrical components; the remote control module realizes remote control of the lithium battery system; the signal transmission and conversion module transmits, converts and conditions various signals to ensure normal communication and collaboration between different modules.

[0075] Equipment installation and inspection: Confirm that the floating airbag 11 is firmly installed on the front and rear sides of the bottom of the mounting plate 1 to ensure that the mounting plate 1 can stably float on the water surface.

[0076] Check the fixation of the winding frame 2 and the top rear side of the mounting plate 1, ensure that the first winding shaft 21 rotates smoothly in the winding frame 2, and the first worm gear 22 and the first winding shaft 21, the first worm 24 and the output end of the first motor 25, and the first worm 24 and the first worm gear 22 are installed and meshed in good condition. The sampling rope 23 should be properly wound on the surface of the first winding shaft 21, with one end fixed to the first winding shaft 21 and the other end firmly connected to the sampling stabilizing rod 3.

[0077] For the water quality detection position adjustment mechanism, the two groups of winding boxes 4 need to be symmetrically arranged on both sides of the mounting plate 1, the bracket 41 needs to be firmly installed on one side of the top of the winding box 4, and the second motor 42 needs to be fixed on the side of the bracket 41. Check the meshing of the second worm 43 and the output end of the second motor 42, the meshing of the second worm 43 and the second worm wheel 44, and the installation of the second worm wheel 44 and the second winding shaft 45. One end of the traverse drive rope 46 needs to be tightly wound on the surface of the second winding shaft 45, and the other end needs to be reliably connected to the traverse block 201 at the center of the mounting plate 1.

[0078] Check whether the sampling tray 31 is firmly fixed to the bottom of the sampling stabilizing rod 3, the six groups of sampling boxes 32 are distributed in a circular shape at equal distances on the top of the sampling tray 31, the sliding fit between the slider 321 and the top slide of the sampling tray 31 should be smooth, the connection between the one-way valve 322 and the solenoid valve 323 and the sampling box 32 is correctly installed, and the solenoid valve 323 wire is well electrically connected to the lithium battery 26 after being coiled and braided with the sampling rope 23 as required. At the same time, check the installation status of the first spring 301, the locking ring 302 and the positioning protrusion 3021 in the clamping assembly to ensure that the positioning protrusion 3021 can be accurately plugged and matched with the top slot of the sampling box 32.

[0079] Confirm that the connecting tube 33 is firmly fixed to the bottom of the sampling tray 31 and the top of the water quality detection mounting block 34, the connecting block 332 is firmly installed on one side of the connecting tube 33, the third motor 3321 is fixed to the bottom of the connecting block 332, and the first gear 3322 and the second gear 3323 are firmly installed on the top and bottom of the surface of the driving shaft 3324 respectively.

[0080] The six groups of water quality sensors 343 in the water quality detection mounting block 34 should be correctly inserted into the detection holes 342, and the positioning bolts 3401 are well threadedly connected to the water quality detection mounting block 34 and are properly matched with the water quality sensors 343. The wires of the water quality sensors 343 are passed through the wiring groove, the interior of the connecting tube 33, and are coiled with the sampling rope 23, and are electrically connected to the lithium battery 26 correctly.

[0081] For the anti-entanglement cage rotation mechanism, the annular stabilizing frame 331 is symmetrical and firmly installed on both sides of the inner gear ring 33221, and is fixed to the connecting pipe 33. Six groups of stabilizing slide bars 3310 are fixed in an annular shape and equidistantly on the side of the annular stabilizing frame 331 close to the inner gear ring 33221. The limiting ring groove 3311 and the stabilizing slide bar 3310 slide and cooperate normally. The clamping sleeve 303 slides smoothly on the surface of the sampling stabilizing rod 3, the fixing pin 305 is well threadedly connected with the clamping sleeve 303, and the two ends of the second spring 304 are respectively fixed to the clamping sleeve 303 and the upper protective cage 51. The twelve groups of connecting frames 52 on the outer ring of the inner gear ring 33221 are distributed in an annular shape and equidistantly, and the connection between the top of the connecting frame 52 and the bottom of the upper protective cage 51 and the bottom and the top of the lower protective cage 5 meet the requirements, and the inner gear ring 33221 is accurately meshed with the first gear 3322.

[0082] In the turbulent flow cleaning mechanism at the detection end, the lower gear ring 341 is firmly fixed to the bottom of the water quality detection mounting block 34, the gear ring sleeve 3411 rotates flexibly at the bottom of the connecting pipe 33 surface, and meshes well with the drive shaft 3324. The rotation limit column 3412 rotates normally at the bottom center of the water quality detection mounting block 34 through the stepped shaft, the third gear 3413 and the rotating shaft 3414, the rotating shaft 3414 and the rotating hanging arm 3415 are firmly installed, the stirring blade 34141 is reliably fixed to the surface of the rotating shaft 3414, and the two sets of retaining springs 34140 are symmetrically installed on the surface of the rotating shaft 3414 and located on both sides of the rotating hanging arm 3415, which play a good limiting role.

[0083] 2. Equipment placement and initial position adjustment;

[0084] Dropping onto the water surface: Slowly drop the mounting plate 1 together with the entire device onto the water surface of the water area to be tested. The floating airbag 11 exerts buoyancy to make the mounting plate 1 float stably on the water surface.

[0085] Initial position determination: According to the actual detection requirements, the water quality detection position adjustment mechanism is used to determine the initial detection position of the equipment on the water surface. Start the second motor 42 through the remote control module or on-site operation. The output end of the second motor 42 drives the second worm 43 to rotate, and the second worm 43 drives the second worm wheel 44 meshing therewith to rotate, thereby rotating the second winding shaft 45 to realize the winding and unwinding operation of the transverse driving rope 46. Since the two sets of winding boxes 4 are respectively located on both sides of the mounting plate 1, the transverse driving rope 46 is wound by one winding box 4 and unwound by the other, driving the transverse block 201 to move in the horizontal plane, so that the mounting plate 1 changes its position on the water surface and is accurately positioned to the predetermined initial detection point.

[0086] 3. Water sample collection and water quality testing stage;

[0087] Sampling depth adjustment: according to the need to detect water quality at different depths, the first motor 25 is started by powering by the lithium battery 26. The output end of the first motor 25 drives the first worm 24 to rotate, and the first worm 24 drives the first worm wheel 22 to rotate the first winding shaft 21 to achieve the winding and unwinding of the sampling rope 23, thereby controlling the sampling stabilizing rod 3 and the sampling tray 31 at its lower end, the water quality detection mounting block 34, etc. to descend to the specified depth.

[0088] Water sample collection: When the sampling tray 31 reaches the predetermined depth, the solenoid valve 323 is controlled to open by the microcontroller module built into the lithium battery 26. At this time, since the sampling box 32 is in an underwater negative pressure state, and the one-way dredging direction of the one-way valve 322 is from bottom to top, the external water sample flows into the sampling box 32 through the one-way valve 322 under the action of the pressure difference. After the collection is completed, the microcontroller module controls the solenoid valve 323 to close, and negative pressure is formed in the sampling box 32 again. The spring force inside the one-way valve 322 and the seal seal the opposite conveying direction to ensure that the collected water sample will not flow out, thereby ensuring the stability of the sampling work. In this way, water samples can be collected from six groups of sampling boxes 32 at different depths in turn to obtain water samples at different depths.

[0089] Water quality detection: While the sampling box 32 is collecting water samples, the water quality sensor 343 located in the detection hole 342 at the bottom of the water quality detection mounting block 34 starts working. Multiple groups of water quality sensors 343 can simultaneously detect multiple parameters such as dissolved oxygen, temperature, conductivity, pH, etc. in the water. Since water quality parameters at different depths may vary due to factors such as light, aquatic biological activity, and water flow, these sensors can quickly obtain multiple groups of data to fully understand the approximate water quality distribution of the water area. For example, in a lake, if the sensor detects a sudden drop in dissolved oxygen in a certain depth interval, more detailed water sample collection and analysis can be carried out in this depth interval to determine whether there is eutrophication or other pollution problems. The data detected by the water quality sensor 343 is connected to the lithium battery 26 through a wire through the inside of the connecting tube 33 and the sampling rope 23, and is transmitted to the relevant data processing equipment for recording and analysis.

[0090] 4. Auxiliary functions are activated during equipment operation;

[0091] Working of the anti-entanglement cage rotation mechanism: To ensure that the sampling process is not disturbed by debris and to improve sampling accuracy, the third motor 3321 in the dual drive mechanism is started. The drive shaft 3324 at the output end of the third motor 3321 drives the first gear 3322 to rotate, and the inner gear ring 33221 meshing with the first gear 3322 rotates accordingly. The annular stabilizing frame 331 and the stabilizing slide bar 3310 on both sides of the inner gear ring 33221 limit its rotation to ensure stable rotation. The connecting frame 52 on the outer ring of the inner gear ring 33221 transmits the rotational force to the upper protection cage 51 and the lower protection cage 5, so that they rotate synchronously. The rotating upper protection cage 51 and the lower protection cage 5 have the following advantages:

[0092] Avoid accumulation of debris: branches, water plants, garbage and other debris in the water body are difficult to be fixed and accumulated on the rotating protective cage, which effectively reduces the possibility of sampling being affected by blockage by debris, ensures that the solenoid valve 323 can normally inlet water, and the water sample can smoothly enter the sampling box 32.

[0093] Self-cleaning function: The shear force of the water flow generated by the rotation of the protective cage makes it difficult for tiny particles, algae, etc. attached to the surface of the protective cage to adhere, achieving self-cleaning, maintaining the transparency of the protective cage, ensuring that the water sample can smoothly contact the sampling unit, and improving the accuracy and representativeness of the sampling.

[0094] Reduce local interference: The rotation of the protective cage makes the water flow around the sampling unit more uniform, reduces the impact of water flow disturbances and eddies caused by fixed positions on sampling, and more accurately measures various parameters such as dissolved oxygen and pH in the water body, providing more reliable data for water quality analysis.

[0095] The turbulence cleaning mechanism at the detection end works: the third motor 3321 drives the second gear 3323 on the shaft 3324 and drives the gear ring sleeve 3411 to rotate around the surface of the connecting pipe 33. Under the action of the fixed lower gear ring 341, the gear ring sleeve 3411 drives the rotating arm 3415 to rotate. Because the third gear 3413 is engaged with the lower gear ring 341, when the rotating arm 3415 drives the rotating shaft 3414 to rotate around the axis of the connecting pipe 33, the third gear 3413 drives the rotating shaft 3414 to rotate itself. The stirring blade 34141 on the surface of the rotating shaft 3414 rotates accordingly to form slow turbulence, which flushes the surface of the sensing diaphragm of the water quality sensor 343, and has the following significant effects:

[0096] Extend the service life of the sensor: reduce the adhesion and deposition of impurities, microorganisms, etc. on the diaphragm, and reduce the probability of diaphragm contamination. For example, in sensors that monitor sewage quality for a long time, turbulence can prevent suspended matter, grease and other pollutants in the sewage from accumulating on the diaphragm in large quantities, maintaining the activity and sensitivity of the diaphragm.

[0097] Improve detection accuracy: Make the water sample around the sensing diaphragm more uniform, avoid the formation of a boundary layer with a large concentration gradient on the surface of the diaphragm, prevent abnormal concentration of the measured substance in the local area, and ensure that the sensor detection results are more representative of the true situation of the overall water sample. Taking the pH sensor as an example, turbulence can reduce the pH measurement deviation caused by local accumulation or consumption of acid and base substances.

[0098] 5. Water sample collection and equipment recovery stage;

[0099] Water sample collection: After completing the water sample collection and water quality testing at different depths, if the water sample in the sampling box 32 needs to be taken out for further analysis, firstly, the fixing pin 305 is twisted to release the fastening fit between the compression sleeve 303 and the sampling stabilizing rod 3. Under the action of the second spring 304, the upper protective cage 51 slides upward and separates from the connecting frame 52. Then, the locking ring 302 is slid upward to overcome the elastic force of the first spring 301, so that the positioning protrusion 3021 is disengaged from the top slot of the sampling box 32, and the corresponding sampling box 32 can be taken out, and the water sample collected therein can be transferred to a special water sample storage and analysis container. After the transfer is completed, the sampling box 32 is slid back into the sampling tray 31 through the slider 321, and the locking ring 302 is loosened. Under the elastic force of the first spring 301, the positioning protrusion 3021 is inserted into the slot of the sampling box 32 again to achieve the locking of the sampling box 32 for possible subsequent re-sampling.

[0100] Equipment recovery: Utilize the first motor 25 to reverse, and drive the first winding shaft 21 to wind up the sampling rope 23 through the first worm 24 and the first worm wheel 22, and lift the sampling stabilizing rod 3, the sampling tray 31, the water quality detection mounting block 34, etc. to the water surface. Then, utilize the water quality detection position adjustment mechanism again, start the second motor 42, and move the mounting plate 1 to a position convenient for recovery, such as the shore, by winding and unwinding the transverse driving rope 46, and finally retrieve the entire equipment from the water.

[0101] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0102] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water quality detection and collection device, comprising a mounting plate (1) and a sampling stabilizing rod (3), wherein the sampling stabilizing rod (3) is movably mounted on the bottom of the mounting plate (1), characterized in that: It also includes a floating unwinding mechanism, which is installed on the mounting plate (1) and is used to float the mounting plate (1) and to control the unwinding and rewinding of the sampling stabilizing rod (3); A water quality detection position adjustment mechanism is arranged on both sides of the mounting plate (1) and is used to drive the mounting plate (1) to adjust the horizontal plane position of the water quality detection on the water surface; A sampling tray (31) is fixedly mounted at the bottom of the sampling stabilizing rod (3), and a plurality of sets of electromagnetic sampling mechanisms are arranged on the sampling tray (31) and are used to enable the collection of different water samples at different depths; A connecting pipe (33) is fixedly mounted on the bottom of the sampling tray (31), a water quality detection mounting block (34) is fixedly mounted on the bottom of the connecting pipe (33), an upper protective cage (51) and a lower protective cage (5) are respectively arranged on the top and bottom of the sampling tray (31), and a dual driving mechanism is fixedly mounted on the connecting pipe (33); A water quality detection mechanism is arranged inside the water quality detection installation block (34) and is used to detect water quality data at different depths; An anti-entanglement cage rotating mechanism is arranged on one side of the connecting pipe (33) and is used to rotate the lower protection cage (5) and the upper protection cage (51) to form turbulence on the surface of the lower protection cage (5); The detection end turbulence cleaning mechanism is used to perform turbulence flushing on the detection end at the bottom of the water quality detection installation block (34) to flush away attachments during detection.

2. A water quality detection and collection device according to claim 1, characterized in that: The floating unwinding mechanism comprises a floating airbag (11), a winding frame (2), a first winding shaft (21), a first worm gear (22), a sampling rope (23), a first worm gear (24), a first motor (25) and a lithium battery (26). The floating airbag (11) is fixedly mounted on the front and rear sides of the bottom of the mounting plate (1); the winding frame (2) is fixedly mounted on the rear side of the top of the mounting plate (1); the first winding shaft (21) is rotatably mounted inside the winding frame (2); the first worm gear (22) is fixedly mounted on one end of the first winding shaft (21); the first worm gear (24) is fixedly mounted on the output end of the first motor (25); the first worm gear (24) is meshed with the first worm gear (22); the lithium battery (26) is fixedly mounted on the front side of the top of the mounting plate (1); the sampling rope (23) is wound on the surface of the first winding shaft (21); one end of the sampling rope is fixedly mounted on the first winding shaft (21); and the other end of the sampling rope is fixedly mounted on the sampling stabilizing rod (3).

3. A water quality detection and collection device according to claim 1, characterized in that: The water quality detection position adjustment mechanism comprises a winding box (4), a bracket (41), a second motor (42), a second worm (43), a second worm wheel (44), a second winding shaft (45) and a transverse driving rope (46); the winding box (4) is provided with two groups and is arranged on both sides of the mounting plate (1); the bracket (41) is fixedly mounted on one side of the top of the winding box (4); the second motor (42) is fixedly mounted on one side of the bracket (41); the second worm (43) and the second motor (42) are connected to each other; The output end is fixedly mounted and meshed with the second worm gear (44); the second worm gear (44) is fixedly mounted on one end of the second winding shaft (45) close to the second motor (42); the second winding shaft (45) is rotatably mounted at the inner center of the winding box (4); one end of the transverse driving rope (46) is wound around the surface of the second winding shaft (45); a transverse block (201) is fixedly mounted at the inner center of the mounting plate (1); and the other end of the transverse driving rope (46) is fixedly mounted to the transverse block (201).

4. A water quality detection and collection device according to claim 2, characterized in that: The electromagnetic sampling mechanism comprises a sampling box (32), a slider (321), a one-way valve (322), an electromagnetic valve (323) and a clamping assembly. The sampling box (32) is provided with six groups and is distributed in a circular shape and at equal distances on the top of the sampling tray (31). The slider (321) is fixedly installed on the bottom of the sampling box (32). The top of the sampling tray (31) is provided with a sliding groove that slidably cooperates with the slider (321). The one-way valve (322) is connected to the top of the sampling box (32), and the one-way transmission direction is set from bottom to top. The electromagnetic valve (323) is connected to the bottom of the sampling box (32). The wire of the electromagnetic valve (323) passes through the sampling tray (31) into the interior of the sampling stabilizing rod (3) and is then coiled and woven with the sampling rope (23), and is electrically connected to the lithium battery (26). The clamping assembly is arranged on the top of the sampling tray (31) and is used to fix the position of the six groups of sampling boxes (32).

5. A water quality detection and collection device according to claim 1, characterized in that: The dual drive mechanism comprises a connecting block (332), a third motor (3321), a first gear (3322), a second gear (3323) and a driving shaft (3324); the connecting block (332) is fixedly mounted on one side of the connecting pipe (33) and is located between the sampling box (32) and the water quality detection mounting block (34); the third motor (3321) is fixedly mounted on the bottom of the connecting block (332); the driving shaft (3324) is fixedly mounted on the output end of the third motor (3321); the first gear (3322) is fixedly mounted on the top of the surface of the driving shaft (3324); and the second gear (3323) is fixedly mounted on the bottom of the surface of the driving shaft (3324).

6. A water quality detection and collection device according to claim 2, characterized in that: The water quality detection mechanism comprises a detection hole (342), a water quality sensor (343) and a positioning bolt (3401); the detection holes (342) are provided in six groups and are distributed in a ring shape at the bottom of the water quality detection installation block (34); the water quality sensor (343) is plugged into the detection hole (342); the positioning bolts (3401) are provided in six groups and are distributed in a ring shape at equal distances on the surface of the water quality detection installation block (34); the water quality detection installation block (34) is threadedly connected and used in conjunction with the water quality sensor (343); a wiring groove is provided on the top of the water quality detection installation block (34); the water quality sensor (343) passes through the wiring groove through a wire and extends to the inside of the connecting pipe (33); and the wire of the water quality sensor (343) is wound around the sampling rope (23) through the inside of the connecting pipe (33) and is electrically connected to the lithium battery (26).

7. A water quality detection and collection device and collection method according to claim 5, characterized in that: The anti-entanglement cage rotation mechanism comprises an annular stabilizing frame (331), a stabilizing slide bar (3310), an inner gear ring (33221), a limiting ring groove (3311), a clamping sleeve (303), a second spring (304) and a fixing pin (305). The annular stabilizing frame (331) is symmetrically mounted on both sides of the inner gear ring (33221) and fixedly mounted to the connecting pipe (33). The stabilizing slide bar (3310) is fixedly mounted on one side of the annular stabilizing frame (331) close to the inner gear ring (33221) and is provided with six groups of equidistantly distributed annularly. The limiting ring groove (3311) is provided at the top and bottom of the inner gear ring (33221) and is slidably matched with the stabilizing slide bar (3310). The clamping sleeve (303) is slidably mounted on the top of the surface of the sampling stabilizing rod (3). The fixing pin (305) is threadedly connected to the clamping sleeve (303). Inside the tight sleeve (303), the second spring (304) is sleeved on the surface of the sampling stabilizing rod (3) and is located between the clamping sleeve (303) and the upper protective cage (51). The two ends of the second spring (304) are fixedly connected to the clamping sleeve (303) and the upper protective cage (51) respectively. The clamping sleeve (303) is tightened and fixed to the sampling stabilizing rod (3) through a fixing pin (305). The outer ring of the inner gear ring (33221) is fixedly installed with a connecting frame (52). The top of the connecting frame (52) is plug-fitted with the bottom of the upper protective cage (51). The bottom of the connecting frame (52) is detachably installed with the top of the lower protective cage (5). The connecting frame (52) is provided with twelve groups of outer rings that are equidistantly distributed in an annular shape on the inner gear ring (33221). The inner gear ring (33221) is meshed with the first gear (33222).

8. The water quality detection and collection equipment and collection method according to claim 5, characterized in that: The detection end turbulence cleaning mechanism comprises a lower gear ring (341), a gear ring sleeve (3411), a rotation limit column (3412), a third gear (3413), a rotation shaft (3414), a rotation hanging arm (3415), a retaining spring (34140) and a stirring blade (34141); the lower gear ring (341) is fixedly mounted on the bottom of the water quality detection mounting block (34); the gear ring sleeve (3411) is rotatably sleeved on the bottom of the surface of the connecting pipe (33) and meshed with the driving shaft (3324); the rotation limit column (3412) is ) is rotatably mounted at the bottom center of the water quality detection mounting block (34) through a stepped shaft, the third gear (3413) is fixedly mounted on the surface of the rotating shaft (3414) and meshes with the lower gear ring (341), the rotating shaft (3414) is rotatably mounted at the bottom of the rotating hanging arm (3415), the stirring blade (34141) is fixedly mounted on the surface of the rotating shaft (3414), and the retaining spring (34140) is provided in two groups and is symmetrically mounted on the surface of the rotating shaft (3414) and located on both sides of the rotating hanging arm (3415).

9. A water quality detection and collection device and collection method according to claim 4, characterized in that: The clamping assembly comprises a first spring (301), a locking ring (302) and a positioning protrusion (3021); the first spring (301) is sleeved on the surface of the sampling stabilizing rod (3) and is located between the upper protective cage (51) and the locking ring (302); the locking ring (302) is slidably sleeved on the surface of the sampling stabilizing rod (3); six groups of the positioning protrusions (3021) are arranged and are fixedly mounted at the bottom of the locking ring (302) in an annular manner with equal spacing; a slot for plugging and cooperating with the positioning protrusions (3021) is provided on the top of the sampling box (32).

10. A collection method for water quality detection and collection equipment according to any one of claims 1 to 9, characterized in that: The collection method comprises the following steps: S1, preliminary preparation: check the power of the lithium battery (26) to ensure that its built-in remote control module can receive commands normally; at the same time, check the mechanical connection of the equipment, and the connection between the sampling stabilizing rod (3) and the mounting plate (1), the sampling tray (31) and the sampling stabilizing rod (3), and the protective cage and the connecting frame (52) is stable; S2, launching the equipment and adjusting its position: the mounting plate (1) is floated on the water surface by means of the floating airbag (11), the first motor (25) is started, and the first worm (24) and the first worm wheel (22) are meshed and driven to make the first reel (21) unwind the sampling rope (23), so that the sampling stabilizing rod (3) and related components are lowered to a predetermined depth; the second motors (42) in the two groups of reel boxes (4) are started, one group of the second motors (42) drives the second reel (45) to rewind the transverse driving rope (46) through the second worm (43) and the second worm wheel (44), and the other group unwinds, thereby driving the transverse moving block (201), and moving the mounting plate (1) to the target detection position; S3, water sample collection: after the equipment reaches the designated depth and position, the electromagnetic valve (323) at the bottom of the sampling box (32) is opened, and the water sample flows into the sampling box (32) under the one-way conduction of the one-way valve (322); after the sampling is completed, the electromagnetic valve (323) is closed, and the negative pressure in the sampling box (32) and the one-way valve (322) are used to seal and prevent the water sample from flowing out, wherein six groups of electromagnetic sampling mechanisms are arranged on the sampling tray (31), each group of electromagnetic sampling mechanisms comprises a sampling box (32), a slider (321), a one-way valve (322), a electromagnetic valve (323) and a clamping assembly, wherein the slider (321) is slidably matched with the slide groove on the sampling tray (31), and the clamping assembly is used to fix the position of the sampling box (32); S4, water quality detection: the water quality at different depths is detected in real time through the water quality sensor (343) via the detection hole (342); the detection data is transmitted to the microcontroller module built into the lithium battery (26) through the wire through the connecting pipe (33) and the sampling rope (23) for processing and storage; the detection holes (342) are distributed in an annular manner at the bottom of the water quality detection installation block (34), and the water quality sensor (343) is inserted therein; the positioning bolts (3401) are distributed in an annular manner at equal intervals on the surface of the water quality detection installation block (34) for installing and removing the water quality sensor (343); and the wire of the water quality sensor (343) is electrically connected to the lithium battery (26) after being coiled with the sampling rope (23) through the wiring groove and the inside of the connecting pipe (33); S5, equipment maintenance and guarantee: start the third motor (3321), and its driving shaft (3324) drives the first gear (3322) to rotate, and the first gear (3322) meshes with the inner gear ring (33221), so that the inner gear ring (33221) drives the upper protection cage (51) and the lower protection cage (5) to rotate through the connecting frame (52), thereby preventing debris accumulation, self-cleaning and reducing local interference; at the same time, the driving shaft (3324) drives the second gear (3323) to rotate, and the second gear (3323) drives the gear ring sleeve (3411) to rotate, and the gear ring sleeve (3411) drives the rotating hanging arm (3415) to rotate, and the third gear (3413) meshes with the lower gear ring (341), so as to promote the rotation of the rotating shaft (3414), drive the stirring blade (34141) to form turbulence, and flush the sensing diaphragm at the bottom of the water quality detection installation block (34); S6, water sample collection and equipment recovery: after completing the detection and sampling tasks, twist the fixing pin (305) to release the fastening of the compression sleeve (303) and the sampling stabilizing rod (3), and slide the upper protection cage (51) upward to separate from the connecting frame (52); slide the locking ring (302) upward to release the clamping of the positioning protrusion (3021) on the sampling box (32), and take out the sampling box (32) to transfer the water sample; start the first motor (25) to make the first reel (21) reversely reel in the sampling rope (23), and retract the sampling stabilizing rod (3) and related components; and simultaneously start the two sets of reel boxes ( 4), moves the mounting plate (1) to the shore to complete the equipment recovery, wherein the winding box (4), the bracket (41), the second motor (42), the second worm (43), the second worm wheel (44), the second winding shaft (45) and the transverse driving rope (46) cooperate, the second motor (42) drives the second worm (43) to rotate, the second worm (43) drives the second worm wheel (44) to rotate, the second worm wheel (44) drives the second winding shaft (45) to rotate, realizes the winding and unwinding of the transverse driving rope (46), and then drives the mounting plate (1) to move horizontally.

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