A water quality detection device and a water quality detection method

Abstract

The present invention discloses a water quality detection device and a water quality detection method. A water quality detection device includes a floating bin, a sinking bin and a waterproof cover. During use, when the sinking bin sinks into place, an external water source is sucked in through a first water suction solenoid valve at the bottom of the annular water suction bin, and the water source is continuously poured into a strip air bag during the process of continuously sucking in the water source. When the strip air bag is full, an L-shaped support state is maintained. Multiple groups of arranged strip air bag bags can stably support the sinking bin at the bottom of the floating bin, thereby ensuring the stability of the sinking bin area during the detection process, so that the sinking bin and the partitioned monitoring bin can smoothly collect data on the water sample, and then the water sample at the bottom of the detection cavity is discharged through the drainage solenoid valve. When the original water sample in the detection cavity is completely discharged, the cleaning step in the detection cavity is completed to avoid cross-contamination of water sample quality during the detection process, thereby ensuring the authenticity of the water sample detection data next time.

Description

Technical Field

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

[0002] Water quality testing items can be divided into two categories: one is comprehensive indicators reflecting water quality, such as temperature, chromaticity, turbidity, pH value, conductivity, suspended solids, dissolved oxygen, chemical oxygen demand and biochemical oxygen demand, etc.; the other is some toxic substances, such as phenol, cyanide, arsenic, lead, chromium, cadmium, mercury and organic pesticides, etc. In order to objectively evaluate the water quality of rivers and oceans, in addition to the above monitoring items, it is sometimes necessary to measure flow rate and flow.

[0003] Remote sensing detection of inland water quality is based on experience, statistical analysis or spectral characteristics of water quality parameters, selecting remote sensing band data and ground-measured water quality parameter data for mathematical analysis, and establishing a water quality parameter inversion algorithm. Water quality remote sensing detection methods can reflect the distribution and changes of water quality in space and time, and discover some pollution sources and pollutant migration characteristics that are difficult to reveal with conventional methods. It also has the advantages of fast detection speed, low cost and convenience for long-term dynamic detection.

[0004] In the prior art, a water quality detection pool and a water quality detection device are disclosed in the publication number "CN115060863A", and its structure includes: a detection rod body, a fixing sleeve, a float, and a support frame. When the device is used, through the provided mechanism, the present invention can achieve the problem that the existing detection equipment is relatively simple and is a plug-in detection pen structure. This detection method is relatively limited, and larger water quality detection equipment is easy to float in a large water quality pool. The detected water area is generally at the boundary of the pool, and it is impossible to obtain more comprehensive regional water quality detection data. The device is floated above the pool by means of multiple groups of floats, and a unique through-type detection tube device is used to perform corresponding detection and analysis of the water quality in the pool. The clamping devices at both ends are used to cooperate, and the device body can be fixed at a suitable position next to the detection pool to prevent it from floating to the boundary of the pool for a long time. More comprehensive detection data can be obtained, which is convenient for later water quality analysis.

[0005] However, the existing technology still has major deficiencies, such as:

[0006] In the above device and prior art:

[0007] 1. River basins are the main source of water for human beings. Water quality testing in river basins can monitor the specific water quality of the current basin. The floating ball device can ensure that the detection structure floats on the water surface, but the floating ball structure is relatively light and cannot resist the turbulent water flow in the river, making it difficult to conduct water quality testing in river basins. The wide river surface makes it impossible for the splint device to position and fix the floating ball device. The detection equipment will continue to float with the floating ball structure, affecting the efficiency of water quality testing;

[0008] 2. The floating problem of the buoy structure can be solved by setting up a separate anchor chain positioning structure. However, rivers are not only wide in surface but also deep in water. If only the upper layer of the water body is tested for water quality, it is impossible to conduct a comprehensive test of the components at different depths in the water body, and it is difficult to ensure the effect of water quality testing in the water body. Summary of the invention

[0009] The purpose of the present invention is to provide a water quality detection device and a water quality detection method to solve the problems raised in the above background technology.

[0010] To achieve the above object, the present invention provides the following technical solutions: a water quality detection device, comprising a floating bin, a sinking bin and a waterproof cover, wherein the sinking bin is arranged at the bottom of the floating bin, the waterproof cover is arranged at the top of the floating bin, a counterweight is installed on the top of the sinking bin, an installation cavity is arranged inside the sinking bin, a partition monitoring bin is installed in the installation cavity, and a sealing bottom plate is installed at the bottom of the installation cavity;

[0011] A buoyancy regulating unit for water quality stratification detection, which is disposed between the floating bin and the sinking bin and is used to adjust the sinking and floating depths of the sinking bin during the detection process, thereby detecting water samples at different depths in the water body;

[0012] A stratified water body detection and decontamination unit, which is arranged inside the partition monitoring chamber and is used to eliminate water samples in other water body layers remaining from the last detection for different stratified water body detection steps during the water body stratification detection process;

[0013] A water body floating and stabilizing unit is arranged in the floating chamber area. When the floating chamber is placed in the detection water body, it is used to maintain the stability of the floating chamber during the detection process and improve the floating chamber's ability to resist the thrust of the water flow.

[0014] Preferably, the water quality stratification detection buoyancy adjustment unit includes a connecting steel cable, a storage cavity is provided in the floating bin, a through groove is opened in the central area of ​​the storage cavity, a fixed seat is installed in the storage cavity, the fixed seat is arranged in two groups, an electric winding roller is installed between adjacent fixed seats, one end of the connecting steel cable passes through the through groove and is wound around the rotating end of the electric winding roller, an annular water absorption bin is installed at the bottom of the floating bin, a strip air bag is installed at the bottom of the floating bin, one end of the strip air bag is fixed to the top of the sinking bin, and a first water absorption solenoid valve is installed at the bottom of the floating bin.

[0015] Preferably, the strip-shaped airbag bag is configured to be L-shaped, and the strip-shaped airbag bag is provided with a redundant length.

[0016] Preferably, the stratified water body detection and pollution removal unit includes a guide inclined plate, a detection cavity is provided inside the partition monitoring bin, the guide inclined plate is obliquely installed inside the detection cavity, a second water absorption solenoid valve is installed on the outside of the sinking bin, the second water absorption solenoid valve is connected to the detection cavity, a stabilizing frame is installed inside the detection cavity, and a water quality detection sensor is installed on the stabilizing frame.

[0017] Preferably, the stratified water body detection and decontamination unit also includes a spray bin body, the detection cavity is arranged into six groups, the spray bin body is installed on the top of each group of the detection cavity, a spray head is installed on the bottom of the spray bin body, and the spray head faces the surface of the water quality detection sensor.

[0018] Preferably, the water floating stabilization unit includes an annular baffle plate, which is installed in the central area of ​​the storage cavity, the annular baffle plate blocks the outside of the through groove, an annular inflatable airbag is installed outside the annular baffle plate, a movable groove is provided outside the floating warehouse, the movable groove is connected to the storage cavity, a movable block is installed outside the annular inflatable airbag, and a buoyancy block is installed outside the movable block.

[0019] Preferably, an arc-shaped buffer groove is provided on the outer side of the buoyancy block.

[0020] Preferably, a first buffer bar is installed in the buoyancy block near the arc-shaped buffer groove area, and second buffer bars are installed at both ends of the buoyancy block, and the second buffer bars are arranged in a plurality of groups at intervals.

[0021] Preferably, a drainage solenoid valve is provided at the bottom of the sealing bottom plate, the drainage solenoid valves are arranged in a plurality of groups at intervals, and the drainage solenoid valves are communicated with the detection cavity.

[0022] A method of use, based on the above-mentioned water quality detection device, comprises the following steps:

[0023] S1: The water sample of the water layer where the current sinking bin is located is sucked in through the second water suction solenoid valve set on the surface of the sinking bin. The sucked water sample flows to the surface of the guiding inclined plate inside the partition monitoring bin through the second water suction solenoid valve. The detection water sample flows along the surface of the guiding inclined plate to the water quality detection sensor area. The water quality detection sensor detects the taken water sample and feeds back the required detection parameters to the external control end, so as to perform detailed detection and record of the water quality parameters of the water sample in the current water layer. At the same time, the multi-partition setting can ensure the authenticity of the parameters under multiple samples and ensure the water quality detection effect;

[0024] S2: The surface of the guide inclined plate and the water quality detection sensor area are cleaned and sprayed by the provided spray chamber and the spray head, so as to remove the original water sample residue in the water quality detection sensor area. The spray liquid flows along the surface of the guide inclined plate to the bottom of the detection chamber, and then the water sample at the bottom of the detection chamber is discharged through the drainage solenoid valve. When the original water sample in the detection chamber is completely discharged, the cleaning step of the detection chamber is completed, so as to avoid cross-contamination of water sample quality during the detection process, thereby ensuring the authenticity of the water sample detection data next time;

[0025] S3: When the sinking bin sinks into place, the external water source is sucked in through the first water absorption solenoid valve at the bottom of the annular water absorption bin, and the water source is continuously poured into the strip air bag during the continuous water absorption process. When the strip air bag is full, it maintains an L-shaped support state. Multiple groups of strip air bag can stably support the sinking bin at the bottom of the floating bin, thereby ensuring the stability of the sinking bin area during the detection process, so that the sinking bin and the partitioned monitoring bin can smoothly collect water sample data, ensuring the smooth transmission of water sample water quality parameters;

[0026] S4: After the buoyancy block is deployed, the contact area between the bottom of the floating tank and the water body will be increased, thereby better maintaining the stability of the bottom of the floating tank. At the same time, the arc-shaped buffer groove set in the buoyancy block area can better resist the impact of external water flow. The first buffer strip and the second buffer strip set on the outside of the arc-shaped buffer groove can further reduce the impact of water flow on the buoyancy block after impacting the arc-shaped buffer groove area.

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

[0028] 1. The test water sample flows along the surface of the guide inclined plate to the water quality detection sensor area. The water quality detection sensor detects the sampled water and feeds back the required detection parameters to the external control end, so as to make detailed detection and record of the water quality parameters of the water sample in the current water layer. At the same time, the multi-zone setting can ensure the authenticity of the parameters under multiple samples and ensure the water quality detection effect;

[0029] 2. The spray liquid flows along the surface of the guide inclined plate to the bottom of the detection chamber, and then the water sample at the bottom of the detection chamber is discharged through the drainage solenoid valve. When the original water sample inside the detection chamber is completely discharged, the cleaning step of the detection chamber is completed to avoid cross-contamination of water sample quality during the detection process, thereby ensuring the authenticity of the next water sample detection data;

[0030] 3. By driving the electric winding roller to rotate, the rotating end of the electric winding roller rotates to rotate and release the wound connecting steel cable. The connecting steel cable is pulled by the counterweight block during the continuous release process. The counterweight block will press the sinking bin to sink, so that the sinking bin can descend to different water layers for water sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is an overall schematic diagram of the device of the present invention;

[0032] Figure 2 It is a partial schematic diagram of the annular water absorption bin in the present invention;

[0033] Figure 3 It is a schematic diagram of the through groove part in the present invention;

[0034] Figure 4 It is a partial schematic diagram of the floating warehouse in the present invention;

[0035] Figure 5 It is a schematic diagram of the electric winding roller and the connecting steel cable in the present invention;

[0036] Figure 6 It is a schematic diagram of the sealing bottom plate part of the present invention;

[0037] Figure 7 It is a partial schematic diagram of the buoyancy block in the present invention;

[0038] Figure 8 It is a partial cross-sectional view of the sinking bin in the present invention.

[0039] In the figure: 1. floating bin; 11. storage cavity; 12. movable groove; 13. movable block; 14. through groove; 15. annular baffle plate; 16. annular inflatable airbag; 17. fixed seat; 18. electric winding roller; 19. connecting steel cable; 2. sinking bin; 21. counterweight block; 22. second water absorption solenoid valve; 25. drainage solenoid valve; 26. installation cavity; 27. partition monitoring bin; 271. detection cavity; 272. guide inclined plate; 273. stabilizing frame; 274. water quality detection sensor; 28. spray bin body; 281. spray head; 29. ​​sealing bottom plate; 3. waterproof cover; 4. buoyancy block; 41. first buffer strip; 42. second buffer strip; 43. arc buffer groove; 6. annular water absorption bin; 61. first water absorption solenoid valve; 62. strip airbag bag. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figure 1-8 , the present invention provides a technical solution:

[0042] Embodiment 1: A water quality detection device: comprising a floating bin 1, a sinking bin 2 and a waterproof cover 3, wherein the sinking bin 2 is arranged at the bottom of the floating bin 1, the waterproof cover 3 is arranged at the top of the floating bin 1, a counterweight block 21 is installed on the top of the sinking bin 2, an installation cavity 26 is arranged inside the sinking bin 2, a partition monitoring bin 27 is installed in the installation cavity 26, and a sealing bottom plate 29 is installed at the bottom of the installation cavity 26;

[0043] In this embodiment, firstly, the sample parameters of the six groups of water quality detection sensors 274 in the partition monitoring chamber 27 are reset through the external control end. When the sample parameters of the water quality detection sensors 274 are reset, the floating chamber 1 and the sinking chamber 2 are placed in the water body to be detected. After the floating chamber 1 and the sinking chamber 2 are put in place, the water sample of the water layer where the sinking chamber 2 is currently located is sucked in through the second water suction solenoid valve 22 set on the surface of the sinking chamber 2. The sucked water sample flows to the surface of the guide inclined plate 272 inside the partition monitoring chamber 27 through the second water suction solenoid valve 22. The detection water sample flows along the surface of the guide inclined plate 272 to the area of ​​the water quality detection sensor 274. The water quality detection sensor 274 detects the taken water sample and feeds back the required detection parameters to the external control end, so as to perform detailed detection and record of the water quality parameters of the water sample in the current water layer. At the same time, the multi-partition setting can ensure the authenticity of the parameters under multiple samples and ensure the water quality detection effect.

[0044] The buoyancy regulating unit for water quality stratification detection is arranged between the floating bin 1 and the sinking bin 2, and is used to adjust the sinking and floating depths of the sinking bin 2 during the detection process, so as to detect water samples at different depths in the water body;

[0045] The buoyancy regulating unit for water quality stratification detection includes a connecting steel cable 19, a storage cavity 11 is provided in the floating bin 1, a through groove 14 is opened in the central area of ​​the storage cavity 11, a fixing seat 17 is installed in the storage cavity 11, and the fixing seat 17 is arranged in two groups, and an electric winding roller 18 is installed between adjacent fixing seats 17, one end of the connecting steel cable 19 passes through the through groove 14 and is wound around the rotating end of the electric winding roller 18, an annular water absorption bin 6 is installed at the bottom of the floating bin 1, a strip air bag 62 is installed at the bottom of the floating bin 1, one end of the strip air bag 62 is fixed to the top of the sinking bin 2, and a first water absorption solenoid valve 61 is installed at the bottom of the floating bin 1.

[0046] The strip-shaped airbag bag 62 is configured to be L-shaped, and the strip-shaped airbag bag 62 is configured with a redundant length.

[0047] In this embodiment, after the cleaning step is completed, the step of taking samples of different water layers is carried out. By driving the electric winding roller 18 to rotate, the rotating end of the electric winding roller 18 rotates to rotate and release the wound connecting steel cable 19. The connecting steel cable 19 is pulled by the counterweight block 21 during the continuous release process. The counterweight block 21 will press the sinking bin 2 to sink, so that the sinking bin descends to different water layers to take water samples. In order to ensure that the sinking bin 2 area remains stable during the water sampling process, when the sinking bin 2 sinks into place, the external water source is sucked in through the first water suction solenoid valve 61 at the bottom of the annular water suction bin 6, and the water source is continuously poured into the strip air bag 62 during the continuous water suction process. When the strip air bag 62 is full, it maintains an L-shaped support state. Multiple groups of strip air bag bags 62 can stably support the sinking bin 2 at the bottom of the floating bin 1, thereby ensuring the stability of the sinking bin 2 area during the detection process, so that the sinking bin 2 and the partitioned monitoring bin 27 can smoothly take data on the water sample, and ensure the smooth transmission of water sample water quality parameters;

[0048] The stratified water body detection and decontamination unit is arranged inside the partition monitoring chamber 27, and is used to eliminate the water samples in other water body layers remaining in the last detection for different stratified water body detection steps during the water body stratification detection process;

[0049] The stratified water body detection and pollution removal unit includes a guide inclined plate 272, a detection cavity 271 is arranged inside the partition monitoring chamber 27, the guide inclined plate 272 is obliquely installed inside the detection cavity 271, a second water absorption solenoid valve 22 is installed on the outside of the sinking chamber 2, the second water absorption solenoid valve 22 is connected with the detection cavity 271, a stabilizing frame 273 is installed inside the detection cavity 271, and a water quality detection sensor 274 is installed on the stabilizing frame 273.

[0050] The stratified water body detection and decontamination unit also includes a spray chamber 28. The detection chamber 271 is arranged into six groups. A spray chamber 28 is installed at the top of each group of detection chambers 271. A spray head 281 is installed at the bottom of the spray chamber 28. The spray head 281 faces the surface of the water quality detection sensor 274.

[0051] A drainage solenoid valve 25 is disposed at the bottom of the sealing bottom plate 29 . The drainage solenoid valve 25 is arranged in a plurality of groups at intervals. The drainage solenoid valve 25 is communicated with the detection cavity 271 .

[0052] In this embodiment, after the partition monitoring chamber 27 completes the water quality detection of the current water layer, in order to ensure the accuracy of the water quality parameter detection data of different water layers, the surface of the guide inclined plate 272 and the water quality detection sensor 274 area are cleaned and sprayed through the set spray chamber body 28 and the spray head 281, so as to remove the original water sample residue remaining in the water quality detection sensor 274 area, and the spraying liquid flows along the surface of the guide inclined plate 272 to the bottom of the detection cavity 271, and then the water sample at the bottom of the detection cavity 271 is discharged through the drain solenoid valve 25. When the original water sample inside the detection cavity 271 is completely discharged, the cleaning step in the detection cavity 271 is completed to avoid cross-contamination of water sample quality during the detection process, thereby ensuring the authenticity of the water sample detection data next time.

[0053] Embodiment 2:

[0054] Based on the first embodiment, the present embodiment takes into account that when the floating tank 1 is impacted by a torrent, the floating tank 1 will be continuously shaken by the impact. In order to avoid the above problem, a water body floating stabilization unit is provided in the second embodiment. The water body floating stabilization unit can improve the ability of the floating tank 1 to resist the torrent, and at the same time enhance the contact area between the floating tank 1 and the water body, thereby ensuring the stability of the floating tank 1.

[0055] A water body floating stabilization unit is provided in the area of ​​the floating chamber 1. When the floating chamber 1 is placed in the detection water body, the floating chamber 1 is used to maintain the stability of the floating chamber 1 during the detection process and improve the floating chamber 1's ability to resist the thrust of the water flow;

[0056] The water floating stabilization unit includes an annular baffle plate 15, which is installed in the central area of ​​the storage cavity 11, and the annular baffle plate 15 blocks the outside of the through groove 14. An annular inflatable airbag 16 is installed outside the annular baffle plate 15. A movable groove 12 is arranged on the outside of the floating warehouse 1, and the movable groove 12 is connected to the storage cavity 11. A movable block 13 is installed outside the annular inflatable airbag 16, and a buoyancy block 4 is installed outside the movable block 13.

[0057] An arc-shaped buffer groove 43 is arranged on the outer side of the buoyancy block 4 .

[0058] Preferably, a first buffer bar 41 is installed in the area of ​​the buoyancy block 4 near the arc-shaped buffer groove 43, and second buffer bars 42 are installed at both ends of the buoyancy block 4. The second buffer bars 42 are arranged in a plurality of groups at intervals.

[0059] In this embodiment, in order to ensure the stability of the buoyancy of the floating chamber 1 area, after the floating chamber 1 is put into the water, the strip airbag bag 62 is operated to continuously inhale external gas. When the strip airbag bag 62 is continuously inhaled and filled, the strip airbag bag 62 is continuously expanded. During the expansion process of the strip airbag bag 62, the movable block 13 is continuously pushed to expand outward. The movable block 13 moves outward along the movable groove 12. During the continuous movement and expansion process, the movable groove 12 pushes the multiple groups of arc-shaped buoyancy blocks 4 to expand outward. After the buoyancy blocks 4 are expanded, the contact between the bottom of the floating chamber 1 and the water body is increased. The contact area can better maintain the stability of the bottom of the floating tank 1. At the same time, the arc-shaped buffer groove 43 set in the buoyancy block 4 area can better resist the impact of external water flow. The first buffer bar 41 and the second buffer bar 42 set on the outside of the arc-shaped buffer groove 43 can further reduce the impact of the water flow on the buoyancy block 4 after impacting the arc-shaped buffer groove 43 area, further ensuring the stability of the floating tank 1 area, and further enabling the sinking tank 2 at the bottom of the floating tank 1 and the partitioned monitoring tank 27 to smoothly collect data on water samples, thereby ensuring the smooth transmission of water sample water quality parameters.

[0060] A method of use, based on the above-mentioned water quality detection device, comprises the following steps:

[0061] S1: The water sample of the water layer where the current sinking bin 2 is located is sucked in through the second water suction solenoid valve 22 set on the surface of the sinking bin 2. The sucked water sample flows to the surface of the guide inclined plate 272 inside the partition monitoring bin 27 through the second water suction solenoid valve 22. The detected water sample flows along the surface of the guide inclined plate 272 to the area of ​​the water quality detection sensor 274. The water quality detection sensor 274 detects the taken water sample and feeds back the required detection parameters to the external control end, so as to perform detailed detection and record of the water quality parameters of the water sample in the current water layer. At the same time, the multi-partition setting can ensure the authenticity of the parameters under multiple samples and ensure the water quality detection effect;

[0062] S2: The surface of the guide inclined plate 272 and the water quality detection sensor 274 are cleaned and sprayed by the provided spray chamber 28 and the spray head 281, so as to remove the original water sample residue in the water quality detection sensor 274 area, and the spray liquid flows along the surface of the guide inclined plate 272 to the bottom of the detection chamber 271, and then the water sample at the bottom of the detection chamber 271 is discharged through the drainage solenoid valve 25. When the original water sample in the detection chamber 271 is completely discharged, the cleaning step in the detection chamber 271 is completed, so as to avoid cross contamination of the water sample quality during the detection process, thereby ensuring the authenticity of the water sample detection data next time;

[0063] S3: When the sinking bin 2 sinks into place, the external water source is sucked in through the first water absorption solenoid valve 61 at the bottom of the annular water absorption bin 6, and the water source is continuously poured into the strip air bag 62 during the continuous water absorption process. When the strip air bag 62 is full, it maintains an L-shaped support state. Multiple groups of strip air bag 62 can stably support the sinking bin 2 at the bottom of the floating bin 1, thereby ensuring the stability of the sinking bin 2 area during the detection process, so that the sinking bin 2 and the partition monitoring bin 27 can smoothly collect water sample data and ensure the smooth transmission of water sample water quality parameters;

[0064] S4: After the buoyancy block 4 is unfolded, the contact area between the bottom of the floating tank 1 and the water body will be increased, so as to better maintain the stability of the bottom of the floating tank 1. At the same time, the arc-shaped buffer groove 43 set in the area of ​​the buoyancy block 4 can better resist the impact of external water flow. The first buffer strip 41 and the second buffer strip 42 set on the outside of the arc-shaped buffer groove 43 can further reduce the impact of water flow on the buoyancy block 4 after impacting the arc-shaped buffer groove 43 area.

[0065] Working principle: During the use of this device, firstly, the six groups of water quality detection sensors 274 in the partition monitoring chamber 27 are reset through the external control end for sample parameters. After the sample parameters of the water quality detection sensors 274 are reset, the floating chamber 1 and the sinking chamber 2 are placed in the water body to be detected. After the floating chamber 1 and the sinking chamber 2 are put in place, the water sample of the water layer where the sinking chamber 2 is currently located is sucked in through the second water suction solenoid valve 22 set on the surface of the sinking chamber 2. The sucked water sample flows to the surface of the guide inclined plate 272 inside the partition monitoring chamber 27 through the second water suction solenoid valve 22. The detected water sample flows along the surface of the guide inclined plate 272 to the area of ​​the water quality detection sensor 274. The water quality detection sensor 274 detects the taken water sample and feeds back the required detection parameters to the external control end, thereby performing detailed detection and recording of the water quality parameters of the water sample in the current water layer. At the same time, the multi-partition setting can ensure the authenticity of the parameters under multiple samples and ensure the water quality detection effect.

[0066] After the partition monitoring chamber 27 completes the water quality detection of the current water layer, in order to ensure the accuracy of the water quality parameter detection data of different water layers, the surface of the guide inclined plate 272 and the water quality detection sensor 274 area are cleaned and sprayed through the provided spray chamber body 28 and the spray head 281, so as to remove the original water sample residue remaining in the water quality detection sensor 274 area, and the spray liquid flows along the surface of the guide inclined plate 272 to the bottom of the detection cavity 271, and then the water sample at the bottom of the detection cavity 271 is discharged through the drainage solenoid valve 25. When the original water sample in the detection cavity 271 is completely discharged, the cleaning step in the detection cavity 271 is completed to avoid cross-contamination of the water quality of the water sample during the detection process, thereby ensuring the authenticity of the water sample detection data next time;

[0067] After the floating chamber 1 is put into the water, the strip airbag 62 is operated to continuously inhale external gas. When the strip airbag 62 is filled with air, the strip airbag 62 is continuously expanded. During the expansion of the strip airbag 62, the movable block 13 is continuously pushed to expand outward. The movable block 13 moves outward along the movable groove 12. During the continuous movement and expansion process, the movable groove 12 pushes the multiple groups of arc-shaped buoyancy blocks 4 to expand outward. After the buoyancy blocks 4 are expanded, the contact area between the bottom of the floating chamber 1 and the water body is increased, thereby better maintaining the stability of the bottom of the floating chamber 1. At the same time, the arc-shaped buffer groove 43 arranged in the area of ​​the buoyancy block 4 can better resist the impact of external water flow. The first buffer strip 41 and the second buffer strip 42 arranged on the outside of the arc-shaped buffer groove 43 can further reduce the impact of the water flow on the buoyancy block 4 after impacting the arc-shaped buffer groove 43 area, further ensuring the stability of the floating chamber 1 area, and further enabling the sinking chamber 2 at the bottom of the floating chamber 1 and the partition monitoring chamber 27 to smoothly collect data on the water sample, thereby ensuring the smooth transmission of the water quality parameters of the water sample;

[0068] When the cleaning step is completed, the step of taking samples from different water layers is carried out. By driving the electric winding roller 18 to rotate, the rotating end of the electric winding roller 18 rotates to rotate and release the wound connecting steel cable 19. The connecting steel cable 19 is pulled by the counterweight block 21 during the continuous release process. The counterweight block 21 will press the sinking bin 2 to sink, so that the sinking bin descends to different water layers to take water samples. In order to ensure that the sinking bin 2 area remains stable during the water sampling process, when the sinking bin 2 sinks into place, the external water source is sucked in through the first water suction solenoid valve 61 at the bottom of the annular water suction bin 6, and the water source is continuously poured into the strip air bag 62 during the continuous water suction process. When the strip air bag 62 is full, it maintains an L-shaped support state. Multiple groups of strip air bag bags 62 can stably support the sinking bin 2 at the bottom of the floating bin 1, thereby ensuring the stability of the sinking bin 2 area during the detection process, so that the sinking bin 2 and the partitioned monitoring bin 27 can smoothly take data on the water sample, and ensure the smooth transmission of the water sample water quality parameters.

[0069] 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 device, characterized in that: The invention comprises a floating bin (1), a sinking bin (2) and a waterproof cover (3), wherein the sinking bin (2) is arranged at the bottom of the floating bin (1), the waterproof cover (3) is arranged at the top of the floating bin (1), a counterweight (21) is installed on the top of the sinking bin (2), an installation cavity (26) is arranged inside the sinking bin (2), a partition monitoring bin (27) is installed in the installation cavity (26), and a sealing bottom plate (29) is installed at the bottom of the installation cavity (26); A water quality stratification detection buoyancy adjustment unit, the water quality stratification detection buoyancy adjustment unit is arranged between the floating bin (1) and the sinking bin (2), and is used to adjust the sinking and floating depths of the sinking bin (2) during the detection process, so as to detect water samples at different depths in the water body; A stratified water body detection and decontamination unit, the stratified water body detection and decontamination unit being arranged inside the partition monitoring chamber (27) and being used for eliminating water samples in other water body layers remaining from the last detection for different stratified water body detection steps during the water body stratification detection process; A water body floating stabilization unit, the water body floating stabilization unit being arranged in the area of ​​the floating chamber (1) and being used to maintain the stability of the floating chamber (1) during the detection process when the floating chamber (1) is placed in the detection water body, thereby improving the floating chamber (1)'s ability to resist the thrust of the water flow; The water quality stratification detection buoyancy adjustment unit comprises a connecting steel cable (19); a storage cavity (11) is provided in the floating bin (1); a through groove (14) is provided in the central area of ​​the storage cavity (11); a fixing seat (17) is installed in the storage cavity (11); the fixing seats (17) are arranged in two groups; an electric winding roller (18) is installed between adjacent fixing seats (17); one end of the connecting steel cable (19) passes through the through groove (14) and is wound around the rotating end of the electric winding roller (18); an annular water absorption bin (6) is installed at the bottom of the floating bin (1); a strip air bag (62) is installed at the bottom of the floating bin (1); one end of the strip air bag (62) is fixed to the top of the sinking bin (2); and a first water absorption solenoid valve (61) is installed at the bottom of the floating bin (1); The stratified water body detection and decontamination unit comprises a guide inclined plate (272); a detection cavity (271) is provided inside the partition monitoring chamber (27); the guide inclined plate (272) is obliquely installed inside the detection cavity (271); a second water absorption solenoid valve (22) is installed outside the sinking chamber (2); the second water absorption solenoid valve (22) is communicated with the detection cavity (271); a stabilizing frame (273) is installed inside the detection cavity (271); and a water quality detection sensor (274) is installed on the stabilizing frame (273); The stratified water body detection and decontamination unit further comprises a spray chamber (28), the detection chambers (271) are arranged in six groups, the top of each group of the detection chambers (271) is equipped with the spray chamber (28), the bottom of the spray chamber (28) is equipped with a spray head (281), and the spray head (281) faces the surface of the water quality detection sensor (274); The water body floating stabilization unit comprises an annular baffle plate (15), the annular baffle plate (15) being installed in the central area of ​​the storage cavity (11), the annular baffle plate (15) blocking the outside of the through groove (14), an annular inflatable airbag (16) being installed outside the annular baffle plate (15), a movable groove (12) being arranged outside the floating chamber (1), the movable groove (12) being communicated with the storage cavity (11), a movable block (13) being installed outside the annular inflatable airbag (16), and a buoyancy block (4) being installed outside the movable block (13); An arc-shaped buffer groove (43) is provided on the outer side of the buoyancy block (4).

2. A water quality detection device according to claim 1, characterized in that: The strip-shaped airbag bag (62) is configured to be L-shaped, and the strip-shaped airbag bag (62) is configured to have a redundant length.

3. A water quality detection device according to claim 2, characterized in that: A first buffer strip (41) is installed in the area of ​​the buoyancy block (4) close to the arc-shaped buffer groove (43), and second buffer strips (42) are installed at both ends of the buoyancy block (4), wherein the second buffer strips (42) are arranged in a plurality of groups at intervals.

4. A water quality detection device according to claim 3, characterized in that: A drainage solenoid valve (25) is provided at the bottom of the sealing bottom plate (29), the drainage solenoid valves (25) are arranged in a plurality of groups at intervals, and the drainage solenoid valves (25) are in communication with the detection cavity (271).

5. A water quality detection method using the water quality detection device according to claim 4, characterized in that: The steps include: S1: A water sample of the water layer in the current sinking bin (2) is sucked in through a second water suction solenoid valve (22) provided on the surface of the sinking bin (2), and the sucked water sample flows to the surface of the guide inclined plate (272) inside the partition monitoring bin (27) through the second water suction solenoid valve (22), and the detection water sample flows along the surface of the guide inclined plate (272) to the area of ​​the water quality detection sensor (274), and the water quality detection sensor (274) detects the taken water sample and feeds back the required detection parameters to the external control end, thereby performing detailed detection and recording of the water quality parameters of the water sample in the current water layer. At the same time, the multi-partition setting can ensure that the parameters under multiple samples are true, thereby ensuring the water quality detection effect; S2: The surface of the guide inclined plate (272) and the water quality detection sensor (274) are cleaned and sprayed by the provided spray chamber (28) and the spray head (281), thereby removing the original water sample residue remaining in the water quality detection sensor (274) area, and the spray liquid flows along the surface of the guide inclined plate (272) to the bottom of the detection chamber (271), and then the water sample at the bottom of the detection chamber (271) is discharged through the drainage solenoid valve (25). When the original water sample in the detection chamber (271) is completely discharged, the cleaning step in the detection chamber (271) is completed, thereby avoiding cross-contamination of the water quality of the water sample during the detection process, thereby ensuring that the next water sample detection data is authentic; S3: When the sinking bin (2) sinks into place, the external water source is sucked in through the first water suction solenoid valve (61) at the bottom of the annular water suction bin (6), and the water source is continuously poured into the strip air bag (62) during the process of continuously sucking in the water source. When the strip air bag (62) is full, it maintains an L-shaped support state. The multiple groups of strip air bag (62) can stably support the sinking bin (2) at the bottom of the floating bin (1), thereby ensuring the stability of the sinking bin (2) area during the detection process, so that the sinking bin (2) and the partition monitoring bin (27) can smoothly collect data on the water sample, ensuring the smooth transmission of water sample water quality parameters; S4: After the buoyancy block (4) is deployed, the contact area between the bottom of the floating chamber (1) and the water body is increased, thereby better maintaining the stability of the bottom of the floating chamber (1). At the same time, the arc-shaped buffer groove (43) arranged in the area of ​​the buoyancy block (4) can better resist the impact of external water flow. The first buffer strip (41) and the second buffer strip (42) arranged outside the arc-shaped buffer groove (43) can further reduce the impact of the water flow on the buoyancy block (4) after impacting the arc-shaped buffer groove (43) area.

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