Lake water pollution stratified sampling detection device

Abstract

The present invention discloses a lake water pollution stratified sampling detection apparatus, and relates to the technical field of water quality detection, the lake water pollution stratified sampling detection apparatus comprises: a bearing cabin, two floating counterweight buckets are fixedly assembled below the bearing cabin, one side of each floating counterweight bucket is provided with a water pump, and the draft position of the bearing cabin is adjusted by pumping the water in the floating counterweight buckets; the power paddle is fixedly embedded in the lower side of the tail end of the bearing cabin; the steering rudder is fixedly assembled on the plane of the tail side of the bearing cabin; a water quality sampling mechanism, a water sample transfer tank and a water sample detection assembly are fixedly assembled on the inner wall of the bottom of the bearing cabin, the water sample transfer tank is arranged above the water sample detection assembly and is connected to the water quality sampling mechanism through a hose, and a water taking through hole is formed in the bottom surface of the bearing cabin under the water sample detection assembly; according to the invention, the accuracy of the water sample can be ensured to the greatest extent, the detection efficiency of the device is improved to a certain extent, and the detection cost is saved.

Description

Technical Field

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

[0002] The water environment is a vital component of the ecosystem, especially lake water. Changes in lake water quality directly impact the survival and reproduction of aquatic organisms. Water quality testing can help us understand the quality and changing trends of lake water, allowing us to take appropriate measures to protect the balance of the lake's ecological environment. Water quality testing can also help us understand the water quality status, provide a scientific basis for the rational development and utilization of lake water resources, and promote the development of the environmental protection industry.

[0003] However, existing lake water quality testing equipment is prone to stirring the water flow when taking water samples, causing water samples from different water layers to mix, thereby causing deviations in water quality samples and affecting the water quality test results. In addition, existing testing equipment cannot perform real-time water quality testing. After some water quality samples are stored for a long time, their properties will change to a certain extent, thereby causing deviations in the test results. At the same time, the storage of samples will also cause the weight of the device itself to increase, thereby consuming too much energy of the device to a certain extent.

[0004] Therefore, it is necessary to provide a lake water pollution stratified sampling and detection device to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a stratified sampling and detection device for lake water pollution, comprising: The load-bearing cabin has two floating counterweight barrels fixedly mounted below it. A water pump is provided on one side of each of the two floating counterweight barrels to adjust the draft position of the load-bearing cabin by pumping water out of the floating counterweight barrels. A propeller, fixedly embedded on the lower side of the rear end of the carrying cabin; A steering rudder, fixedly mounted on the plane at the rear side of the load compartment; A water sampling mechanism, a water sample transfer tank, and a water sample detection assembly are fixedly mounted on the inner wall of the bottom of the carrying cabin. The water sample transfer tank is arranged above the water sample detection assembly and is connected to the water sampling mechanism via a hose. A water intake hole is provided on the bottom surface of the carrying cabin directly below the water sample detection component.

[0006] Preferably, a non-polluted water tank, a first polluted water tank and a second polluted water tank are provided on the inner wall of the bottom of the carrying cabin, a cabin push plate is slidably provided in the non-polluted water tank, and a drain port is provided on the side wall of the carrying cabin on the side of the non-polluted water tank close to the power propeller; A first hydraulic cylinder is horizontally arranged on the side of the cabin push plate away from the drain port, and the other end of the first hydraulic cylinder is fixedly arranged on the front side wall of the load-bearing cabin.

[0007] Preferably, the water quality sampling mechanism comprises: water intake platform; A fixed support frame is fixedly arranged on the inner wall of the bottom of the carrying cabin, the fixed support frame is provided with three support columns, and each support column is fixedly equipped with a telescopic track, each telescopic track is slidably provided with a sliding block, each sliding block is provided with two universal connectors, six universal connectors are fixedly installed on the water intake platform, and a second hydraulic cylinder is connected between the universal connectors on the sliding blocks and the corresponding universal connectors on the water intake platform, and the water intake platform is horizontally arranged directly below the fixed support frame; The water intake assembly is fixedly assembled on the upper surface of the water intake platform.

[0008] Preferably, the water intake assembly comprises: An extendable water extractor is fixedly mounted on the upper surface of the water extraction platform. A telescopic protective tube is fixedly mounted on the extendable water extractor. A water sample storage telescopic tank is fixedly mounted on the upper end of the telescopic protective tube. A third hydraulic cylinder is fixedly mounted on the upper end of the water sample storage telescopic tank. The other end of the third hydraulic cylinder is fixedly mounted on the upper surface of the extendable water extractor. A water pumping and transferring pump is fixedly assembled on the inner side of the water sample storage telescopic tank, and an input end of the water pumping and transferring pump is arranged below the water sample storage telescopic tank.

[0009] Preferably, the third hydraulic cylinder is a three-stage telescopic cylinder, wherein the front end of the second-stage telescopic cylinder of the third hydraulic cylinder is fixed at the connection between the telescopic protective tube and the water sample storage telescopic tank, and the second-stage telescopic cylinder and the front-end telescopic cylinder of the third hydraulic cylinder can be independently telescopic.

[0010] Preferably, the extendable water extractor includes a fixed bearing block, which is fixedly mounted on the upper surface of the water intake platform. Six sliding grooves are provided in the fixed bearing block, and a sliding wall is slidably provided in each sliding groove. Each sliding wall is provided with a sliding column, and the sliding column is slidably provided on the first gear. The first gear is rotatably provided on the fixed bearing block, and a second gear is meshed with the outer side of the first gear. The second gear is fixedly mounted on the output shaft of the drive motor, and the drive motor is embedded in the inner side of the fixed bearing block.

[0011] Preferably, elastic sealing pads are provided on the adjacent side walls and inner side walls of each sliding wall.

[0012] Preferably, the water sample detection component includes a first drive motor, which is fixedly mounted on the inner wall of the bottom of the carrying cabin, and a first rotating disk is fixedly mounted on the output shaft of the first drive motor, and eight water sample purifiers are embedded in the circumference of the upper surface of the first rotating disk, and a second drive motor is fixedly mounted on the upper surface of the first rotating disk, and a second rotating disk is fixedly mounted on the output shaft of the second drive motor, and eight water sample detectors are embedded in the circumference of the upper surface of the second rotating disk.

[0013] Preferably, each of the water sample purifiers is used for purifying different water samples, and each of the water sample detectors is used for detecting different performances.

[0014] Compared with the prior art, the present invention provides a stratified sampling and detection device for lake water pollution, which has the following beneficial effects: The water quality sampling mechanism provided in the present invention can sample different water layers without stirring the water flow underwater, thereby ensuring the purity and representativeness of the water sample to the greatest extent, and further ensuring the accuracy of the water quality detection results. At the same time, the water quality sampling mechanism can accurately sample water quality in different ranges, and the amount of water sampled can be adjusted according to the requirements of water quality sampling, further ensuring the adequacy of the water sample, thereby ensuring the efficiency of water quality detection to the greatest extent.

[0015] The water sample detection component provided in the present invention can perform different tests on water samples, while improving the detection efficiency and ensuring the detection results. At the same time, the water sample detection component can also purify the detected water samples to prevent the detection substances in certain detection processes from contaminating the detected water samples. At the same time, the water sample detection component can classify and discharge the purified water into the carrying cabin, and discharge the water samples that will not cause pollution to the water flow in which they are located into the water flow, further reducing the dead weight of the device, thereby improving the detection efficiency of the device to a certain extent and saving detection costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a stratified sampling and detection device for lake water pollution; Figure 2 Schematic diagram of the structure of the load-bearing cabin in the present invention; Figure 3 Schematic diagram of the structure of the water quality sampling mechanism of the present invention; Figure 4 It is a structural schematic diagram of the water intake component in the present invention; Figure 5 It is a structural schematic diagram of the stretch water dispenser in the present invention; Figure 6 Schematic diagram of the structure of the water sample detection component of the present invention; Figure: 1, load-bearing cabin; 2, floating counterweight barrel; 3, propeller; 4, steering rudder; 5, water sampling mechanism; 6, water sample transfer tank; 7, water sample detection assembly; 11, clean water tank; 12, first contaminated water tank; 13, second contaminated water tank; 14, cabin push plate; 15, first hydraulic cylinder; 16, drain port; 51, fixed support frame; 52, telescopic track; 53, sliding block; 54, universal connector; 55, second hydraulic cylinder; 56, water intake platform ; 57. Water intake assembly; 571. Extendable water extractor; 572. Telescopic protective tube; 573. Third hydraulic cylinder; 574. Water sample storage telescopic tank; 575. Water transfer pump; 5711. Fixed bearing block; 5712. Sliding wall; 5713. First gear; 5714. Second gear; 71. First drive motor; 72. First rotating disk; 73. Water sample purifier; 74. Second drive motor; 75. Second rotating disk; 76. Water sample detector. DETAILED DESCRIPTION

[0017] See also Figures 1 to 6 The present invention provides a lake water pollution stratified sampling and detection device, comprising: The load-bearing cabin 1 has two floating counterweight barrels 2 fixedly mounted below it. A water pump is provided on one side of each of the two floating counterweight barrels 2 to adjust the draft position of the load-bearing cabin 1 by pumping water out of the floating counterweight barrels 2. The propeller 3 is fixedly embedded on the lower side of the tail end of the carrying cabin 1; A steering rudder 4 is fixedly mounted on the plane at the rear side of the load compartment 1; A water sampling mechanism 5, a water sample transfer tank 6, and a water sample detection component 7 are fixedly mounted on the inner wall of the bottom of the carrying cabin 1. The water sample transfer tank 6 is arranged above the water sample detection component 7 and is connected to the water sampling mechanism 5 via a hose. A water intake hole is provided on the bottom surface of the carrying cabin 1 directly below the water sample detection assembly 7; As a preferred embodiment, the water quality sampling mechanism 5 can sample different water layers without stirring the water flow underwater, thereby ensuring the purity and representativeness of the water sample to the greatest extent, and further ensuring the accuracy of the water quality detection results. At the same time, the water quality sampling mechanism 5 can accurately sample water quality in different ranges, and the amount of water sampled can be adjusted according to the requirements of water quality sampling, further ensuring the adequacy of the water sample, thereby ensuring the efficiency of water quality detection to the greatest extent. The water sample detection component 7 can perform different tests on water samples, while improving the detection efficiency and ensuring the detection results. At the same time, the water sample detection component 7 can also purify the detected water samples to prevent the detection substances in certain detection processes from contaminating the detected water samples. At the same time, the water sample detection component 7 can classify and discharge the purified water quality into the carrying cabin 1, and discharge the water samples that will not pollute the water flow in which it is located into the water flow, further reducing the weight of the device, thereby improving the detection efficiency of the device to a certain extent, and saving detection costs.

[0018] Furthermore, a non-polluted water tank 11, a first polluted water tank 12, and a second polluted water tank 13 are provided on the bottom inner wall of the carrying cabin 1. A cabin push plate 14 is slidably provided in the non-polluted water tank 11, and a drain port 16 is provided on the side wall of the carrying cabin 1 on the side of the non-polluted water tank 11 close to the power propeller 3. A first hydraulic cylinder 15 is horizontally provided on the side of the cabin push plate 14 away from the drain port 16, and the other end of the first hydraulic cylinder 15 is fixedly provided on the front side wall of the load-bearing cabin 1; As a preferred embodiment, the purified water sample may have some pollutants remaining, and the water quality in each place is different, and the standards for non-polluted water samples are different. The water sample detection component 7 will discharge the water sample that does not pollute the water quality at that location into the non-polluted water tank 11, and then push the cabin push plate 14 through the first hydraulic cylinder 15 to discharge the water sample in the non-polluted water tank 11 into the water flow through the drain port 16, thereby eliminating the weight impact of the water sample on the device, and thus reducing energy consumption to a certain extent. Water samples that have not completely cleared of pollutants and water samples that have been completely cleared and will pollute the water quality (the device may be in the process of moving during the detection process, and the water flow in which it is located will not change, so some water samples that have completely cleared of the test objects will pollute the water quality at that location) will be discharged into the first contaminated water tank 12 and the second contaminated water tank 13 respectively, and will be manually processed after the device docks.

[0019] Furthermore, the water quality sampling mechanism 5 includes: water intake platform 56; A fixed support frame 51 is fixedly mounted on the inner wall of the bottom of the carrying cabin 1. The fixed support frame 51 is provided with three support columns, and each support column is fixedly equipped with a telescopic rail 52. A sliding block 53 is slidably mounted on each of the telescopic rails 52. Each sliding block 53 is provided with two universal connectors 54. Six universal connectors 54 are fixedly mounted on the water intake platform 56. A second hydraulic cylinder 55 is connected between the universal connectors 54 on the sliding block 53 and the corresponding universal connectors 54 on the water intake platform 56. The water intake platform 56 is horizontally arranged directly below the fixed support frame 51. A water intake assembly 57 is fixedly mounted on the upper surface of the water intake platform 56; As a preferred embodiment, the relative height of the water sampling platform 56 can be adjusted by sliding the sliding block 53 on the telescopic track 52, so that the water sampling component 57 can sample the water quality of different water layers. The setting of the telescopic track 52 can further increase the water layer sampling range of the water quality sampling mechanism 5, so as to sample the water quality of each water environment. At the same time, by extending and retracting the six second hydraulic cylinders 55 to different degrees, the water sampling platform 56 can be translated in the water layer, thereby preventing the complex underwater environment from affecting the water quality sampling, thereby causing deviations in the water sample results, or even making it impossible to take out the water sample, thereby affecting the efficiency of water quality detection, or even damaging the device. The water sampling component 57 can accurately sample water quality in different ranges, and the amount of water sampled can be adjusted according to the requirements of water quality sampling, further ensuring the adequacy of the water sample, thereby maximizing the efficiency of water quality detection.

[0020] Furthermore, the water intake assembly 57 includes: An extendable water extractor 571 is fixedly mounted on the upper surface of the water extraction platform 56. A telescopic protective tube 572 is fixedly mounted on the extendable water extractor 571. A water sample storage telescopic tank 574 is fixedly mounted on the upper end of the telescopic protective tube 572. A third hydraulic cylinder 573 is fixedly mounted on the upper end of the water sample storage telescopic tank 574. The other end of the third hydraulic cylinder 573 is fixedly mounted on the upper surface of the extendable water extractor 571. A water pumping and transfer pump 575 is fixedly assembled on the inner side of the water sample storage telescopic tank 574, and the input end of the water pumping and transfer pump 575 is arranged below the water sample storage telescopic tank 574; As a preferred embodiment, in the initial state, the extendable water extractor 571 is in an extended state. After the water intake component 57 is adjusted to a suitable water layer position, the relative height of the telescopic protective tube 572 and the water sample storage telescopic tank 574 is adjusted by the third hydraulic cylinder 573. The water layer range where the telescopic protective tube 572 is located is the water layer range required for sampling. After the water flow is calm, the extendable water extractor 571 will slowly shrink, thereby closing the water intake component 57. The enclosed space composed of the extendable water extractor 571, the telescopic protective tube 572 and the water sample storage telescopic tank 574 is the required water sample. The water pumping transfer pump 575 will extract the water sample into the water sample storage telescopic tank 574. If the water sample is too small and is not enough for water quality testing (the smaller the water layer range, the smaller the water volume of the water sample; when the water layer range is too small, the water volume of the water sample may not meet the water volume required for water quality testing), the above operation needs to be repeated and multiple samplings need to be performed to ensure sufficient water samples.

[0021] Furthermore, the third hydraulic cylinder 573 is a three-stage telescopic cylinder, wherein the front end of the second-stage telescopic cylinder of the third hydraulic cylinder 573 is fixed to the connection between the telescopic protection tube 572 and the water sample storage telescopic tank 574, and the second-stage telescopic cylinder and the front-end telescopic cylinder of the third hydraulic cylinder 573 can be independently extended and retracted; As a preferred embodiment, the setting of the third hydraulic cylinder 573 can accurately adjust the water layer range of the telescopic protective tube 572, that is, adjust the water layer range required for sampling, thereby satisfying the device's water quality sampling of different water layers.

[0022] Furthermore, the extendable water extractor 571 includes a fixed bearing block 5711, which is fixedly mounted on the upper surface of the water intake platform 56. Six sliding grooves are provided in the fixed bearing block 5711, and a sliding wall 5712 is slidably provided in each sliding groove. Each sliding wall 5712 is provided with a sliding column, and the sliding column is slidably provided on a first gear 5713. The first gear 5713 is rotatably provided on the fixed bearing block 5711, and a second gear 5714 is meshed with the outer side of the first gear 5713. The second gear 5714 is fixedly mounted on the output shaft of the drive motor, and the drive motor is embedded in the inner side of the fixed bearing block 5711. As a preferred embodiment, the setting of the extendable water collector 571 can make the extendable water collector 571, the telescopic protective tube 572 and the water sample storage telescopic tank 574 form a closable or unclosable interval. When it is in an unclosed state, the entry of water samples can be guaranteed. At the same time, through the slow contraction of the extendable water collector 571, the water layer can be sampled without stirring the water flow, thereby further ensuring the accuracy of the water sample.

[0023] Furthermore, elastic sealing pads are provided on the adjacent side walls and inner walls of each sliding wall 5712. The provision of the elastic sealing pads can ensure the airtightness of the device and further ensure the purity of the water sample.

[0024] Furthermore, the water sample detection assembly 7 includes a first drive motor 71, which is fixedly mounted on the inner wall of the bottom of the carrying cabin 1. A first rotating disk 72 is fixedly mounted on the output shaft of the first drive motor 71, and eight water sample purifiers 73 are embedded in the circumference of the upper surface of the first rotating disk 72. A second drive motor 74 is fixedly mounted on the upper surface of the first rotating disk 72, and a second rotating disk 75 is fixedly mounted on the output shaft of the second drive motor 74. Eight water sample detectors 76 are embedded in the circumference of the upper surface of the second rotating disk 75. As a preferred embodiment, the water sample detector 76 can detect water samples, and the water sample purifier 73 can specifically purify different water samples for detection, thereby preventing water quality from being polluted.

[0025] Furthermore, each of the water sample purifiers 73 is used for purifying different water samples, and each of the water sample detectors 76 is used for detecting different performances.

[0026] During specific implementation, the following steps are included: the device is moved to the designated sampling position by the power paddle 3 and the steering rudder 4, the device is fixed at the sampling position by changing the floating counterweight barrel 2, and then the relative height of the water sampling platform 56 can be adjusted by sliding the sliding block 53 on the telescopic track 52. At the same time, the water sampling platform 56 can be translated in the water layer by performing different degrees of extension and contraction by the six second hydraulic cylinders 55. After the water flow is unstable, the extended water extractor 571 will slowly shrink, thereby closing the water extraction component 57. The enclosed space composed of the extended water extractor 571, the telescopic protective tube 572 and the water sample storage telescopic tank 574 is the required water sample. The water transfer pump 575 will extract the water sample into the water sample storage telescopic tank 574. If the water sample is less than required for water quality detection, the above operation needs to be repeated and multiple samplings need to be performed to ensure that the water sample is sufficient. After the sampling is completed, the power paddle 3 and the steering rudder 4 will be used to extract the water sample. The device moves to the next position, and at the same time the water quality sampling mechanism 5 retracts and transports the water sample to the water sample transfer tank 6. The water sample transfer tank 6 transports the water sample to different water sample detectors 76 of the water sample detection component 7. The water sample detector 76 that has completed the detection will specifically transport the detected water sample to the corresponding water sample purifier 73. The water sample purifier 73 will purify the detected water sample. The water sample purifier 73 will discharge the water sample that does not pollute the water quality at this location into the non-polluted water tank 11, and then push the cabin push plate 14 through the first hydraulic cylinder 15 to discharge the water sample in the non-polluted water tank 11 into the water flow through the drain port 16, thereby eliminating the weight impact of the water sample on the device, and thus reducing energy consumption to a certain extent. The water samples that have not completely cleared the pollutants and the water samples that have been completely cleared and will pollute the water quality will be discharged into the first polluted water tank 12 and the second polluted water tank 13 respectively, and will be manually processed after the device docks.

[0027] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A lake water pollution stratified sampling and detection device, characterized in that: include: The carrying cabin (1) has two floating counterweight barrels (2) fixedly mounted thereunder, and a water pump is provided on one side of each of the two floating counterweight barrels (2) to adjust the draft position of the carrying cabin (1) by pumping water out of the floating counterweight barrels (2); A power propeller (3) is fixedly embedded on the lower side of the tail end of the carrier cabin (1); A steering rudder (4) fixedly mounted on a plane at the rear side of the load-bearing cabin (1); A water quality sampling mechanism (5), a water sample transfer tank (6), and a water sample detection component (7) are fixedly mounted on the inner wall of the bottom of the carrying cabin (1); the water sample transfer tank (6) is arranged above the water sample detection component (7), and the water sample transfer tank (6) is connected to the water quality sampling mechanism (5) via a hose; A water intake hole is provided on the bottom surface of the carrying compartment (1) directly below the water sample detection assembly (7).

2. A lake water pollution stratified sampling and detection device according to claim 1, characterized in that: A non-polluted water tank (11), a first polluted water tank (12), and a second polluted water tank (13) are provided on the bottom inner wall of the carrier cabin (1); a cabin push plate (14) is slidably provided in the non-polluted water tank (11); and a water discharge port (16) is provided on the side wall of the carrier cabin (1) on the side of the non-polluted water tank (11) close to the power propeller (3); A first hydraulic cylinder (15) is horizontally arranged on one side of the cabin push plate (14) away from the water outlet (16), and the other end of the first hydraulic cylinder (15) is fixedly arranged on the front side wall of the load-bearing cabin (1).

3. A lake water pollution stratified sampling and detection device according to claim 1, characterized in that: The water quality sampling mechanism (5) comprises: Water intake platform (56); A fixed support frame (51), wherein the fixed support frame (51) is fixedly arranged on the inner wall of the bottom of the carrying cabin (1), the fixed support frame (51) is provided with three support columns, and each support column is fixedly equipped with a telescopic rail (52), each telescopic rail (52) is slidably provided with a sliding block (53), each sliding block (53) is provided with two universal connectors (54), and the water intake platform (56) is fixedly equipped with six universal connectors (54), and a second hydraulic cylinder (55) is connected between the universal connectors (54) on the sliding block (53) and the corresponding universal connectors (54) on the water intake platform (56), and the water intake platform (56) is horizontally arranged directly below the fixed support frame (51); The water intake assembly (57) is fixedly assembled on the upper surface of the water intake platform (56).

4. A lake water pollution stratified sampling and detection device according to claim 3, characterized in that: The water intake assembly (57) comprises: An extendable water extractor (571) is fixedly mounted on the upper surface of the water extraction platform (56); a telescopic protective tube (572) is fixedly mounted on the extendable water extractor (571); a water sample storage telescopic tank (574) is fixedly mounted on the upper end of the telescopic protective tube (572); a third hydraulic cylinder (573) is fixedly mounted on the upper end of the water sample storage telescopic tank (574); and the other end of the third hydraulic cylinder (573) is fixedly mounted on the upper surface of the extendable water extractor (571); The water pumping and transfer pump (575) is fixedly assembled on the inner side of the water sample storage telescopic tank (574), and the input end of the water pumping and transfer pump (575) is arranged below the water sample storage telescopic tank (574).

5. A lake water pollution stratified sampling and detection device according to claim 4, characterized in that: The third hydraulic cylinder (573) is a three-stage telescopic cylinder, wherein the front end of the second-stage telescopic cylinder of the third hydraulic cylinder (573) is fixed at the connection between the telescopic protection tube (572) and the water sample storage telescopic tank (574), and the second-stage telescopic cylinder and the front-end telescopic cylinder of the third hydraulic cylinder (573) can be independently telescopic.

6. A lake water pollution stratified sampling and detection device according to claim 4, characterized in that: The extendable water extractor (571) includes a fixed bearing block (5711), which is fixedly assembled on the upper surface of the water extraction platform (56), and six sliding grooves are provided in the fixed bearing block (5711), and a sliding wall (5712) is slidably provided in each sliding groove, and each sliding wall (5712) is provided with a sliding column, and the sliding column is slidably provided on a first gear (5713), and the first gear (5713) is rotatably provided on the fixed bearing block (5711), and a second gear (5714) is meshed with the outer side of the first gear (5713), and the second gear (5714) is fixedly assembled on the output shaft of the drive motor, and the drive motor is embedded in the inner side of the fixed bearing block (5711).

7. A lake water pollution stratified sampling and detection device according to claim 6, characterized in that: Each of the sliding walls (5712) is provided with an elastic sealing pad on the adjacent side wall and inner wall.

8. The lake water pollution stratified sampling and detection device according to claim 1, characterized in that: The water sample detection component (7) includes a first drive motor (71), the first drive motor (71) is fixedly mounted on the inner wall of the bottom of the carrying cabin (1), a first rotating disk (72) is fixedly mounted on the output shaft of the first drive motor (71), eight water sample purifiers (73) are embedded in the circumference of the upper surface of the first rotating disk (72), and a second drive motor (74) is fixedly mounted on the upper surface of the first rotating disk (72), a second rotating disk (75) is fixedly mounted on the output shaft of the second drive motor (74), and eight water sample detectors (76) are embedded in the circumference of the upper surface of the second rotating disk (75).

9. A lake water pollution stratified sampling and detection device according to claim 8, characterized in that: Each of the water sample purifiers (73) is used for purifying different water samples, and each of the water sample detectors (76) is used for detecting different properties.

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