Water quality detection device for environmental water area detection

Abstract

The invention discloses a water quality detection device for environmental water area detection, and relates to the technical field of water quality detection, the water quality detection device comprises a main body, an upper connecting plate and a lower connecting plate are respectively arranged on the upper and lower parts of the main body, and annularly distributed support legs are arranged on the outer side of the upper connecting plate; the buoyancy cabin is annular, is fixed between the upper connecting plate and the lower connecting plate and is fixed by the supporting legs, and a flexible air bag is arranged in the buoyancy cabin; the counterweight device is fixed at the middle upper part of the main body and positioned in the center of the main body; and the sampling detection device is fixed at the bottom of the lower connecting plate. The device integrates the functions of dynamic buoyancy adjustment, intelligent counterweight balance, multi-depth accurate sampling and real-time detection, and effectively solves the problems of poor stability, inaccurate sampling, detection lag and the like in the prior art.

Description

Technical Field

[0001] This invention relates to the field of water quality testing technology, and more specifically, to a water quality testing device for environmental water testing. Background Technology

[0002] In environmental water quality testing, traditional water quality testing devices often suffer from problems such as inflexible buoyancy adjustment, poor stability, and inaccurate sampling depth control. Existing technologies often employ fixed counterweights or single buoyancy adjustment methods, making it difficult to dynamically adjust the center of gravity according to water surface fluctuations or underwater environments. This leads to the device easily tilting or even capsizing, affecting the accuracy of the test data. Sampling systems mostly use fixed depths or manual adjustments, failing to achieve continuous multi-depth sampling, and are easily affected by water flow disturbances during sampling, resulting in insufficient sample representativeness. Testing relies heavily on post-analysis in laboratories, lacking real-time detection capabilities and failing to respond quickly to changes in water quality. Furthermore, traditional devices face technical bottlenecks in the coordinated control of balancing counterweights and buoyancy, making it difficult to achieve precise depth positioning while ensuring stability, thus limiting their application in complex aquatic environments. Therefore, it is necessary to provide a water quality testing device for environmental water quality testing to address the problems mentioned in the background. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides the following technical solution: a water quality testing device for environmental water testing, comprising:

[0004] The main body has an upper connecting plate and a lower connecting plate, and the outer side of the upper connecting plate has ring-shaped supporting feet.

[0005] The buoyancy chamber is ring-shaped and fixed between the upper and lower connecting plates by support legs, and is equipped with flexible airbags inside.

[0006] The counterweight device is fixed in the upper middle part of the main body, located at the center of the main body;

[0007] The sampling and testing device is fixed at the bottom of the lower connecting plate.

[0008] Furthermore, preferably, the counterweight device includes:

[0009] The fixed cylinder is fixed at the top center of the lower connecting plate and located in the middle of the buoyancy chamber;

[0010] The screw conveyor assembly is movable within the fixed cylinder.

[0011] The gravity dispersion component is fixed on the upper connecting plate, and the spiral conveying component is rotatably connected to the inner side of the gravity dispersion component;

[0012] The lifting and rotating mechanism is fixed on the top of the gravity dispersion component and connected to the upper part of the screw conveyor component;

[0013] The drive motor is fixed to the top of the screw conveyor assembly.

[0014] Furthermore, preferably, the spiral conveyor assembly includes:

[0015] The conveying pipe is slidably installed inside the fixed cylinder;

[0016] Multiple connecting strips are arranged in a ring and fixed to the top of the conveying pipe;

[0017] The dispersion tube is fixed to the top of the connecting strip, and the upper part of the outer side is connected to the lifting and rotating mechanism;

[0018] The output port is located on one side of the lower part of the dispersion tube, corresponding to the gravity dispersion component;

[0019] The sealing and recovery inclined ring has an inner ring fixed at the connection between the conveying pipe and the connecting strip, and an outer ring corresponding to the bottom of the gravity dispersion component.

[0020] The conveying spiral shaft is rotatably installed inside the conveying pipe and the dispersing pipe, and its top passes through the dispersing pipe and is connected to the drive motor.

[0021] Furthermore, preferably, the gravity dispersion component includes:

[0022] The connecting housing is fixed to the top of the upper connecting plate and supports the lifting and rotating mechanism;

[0023] Multiple upper partition plates are arranged in a ring and fixed to the inner side of the connecting housing, and the inner side of the upper partition plates is in contact with the outer wall of the screw conveyor assembly.

[0024] An arc-shaped guide body is fixed to the lower part of the upper partition plate, and there is a gap between the top of the arc-shaped guide body and the top of the upper partition plate corresponding to the output port, and there is a gap between the outer side of the arc-shaped guide body and the connecting shell corresponding to the sealing and recycling inclined ring.

[0025] The closed annular surface is fixed to the inner bottom of the arc guide body and corresponds to the connecting strip.

[0026] Furthermore, preferably, the sampling and detection device includes:

[0027] The limiting housing is fixed to the bottom of the lower connecting plate;

[0028] The fixed shaft is fixed at the bottom center of the lower connecting plate and is located inside the limiting housing;

[0029] The lifting gear is movable on a fixed shaft;

[0030] The lower partition plates are arranged in a ring and are fixed to the bottom of the lower connecting plate, located inside the limiting housing;

[0031] The drive assembly is located within the gap between the two lower partition plates;

[0032] Multiple adjustable sampling components are distributed along an arc and sequentially arranged between the lower partition plates;

[0033] The detection component is located within the adjustment sampling component.

[0034] Furthermore, preferably, the driving component includes:

[0035] The drive shaft is fixed to the bottom of the lower connecting plate and is driven by a motor.

[0036] The long gear is fixed to the bottom of the drive shaft and meshes with the lifting gear.

[0037] Furthermore, preferably, the adjustment sampling component includes:

[0038] The outer shaft is fixed to the bottom of the lower connecting plate, and the length of the outer shaft in each adjustment sampling assembly increases sequentially.

[0039] The control gear rotates from the bottom of the limiting outer shaft;

[0040] The movable adjustment shaft is threadedly connected to the control gear, its top is slidably connected to the limiting outer shaft, and its bottom passes through the limiting housing;

[0041] The sampling cylinder is fixed at the bottom of the limiting housing and is slidably connected to the movable adjustment shaft;

[0042] The connecting piece is fixed to the bottom of the movable adjusting shaft;

[0043] The rotating sealing surface is positioned at the bottom of the connecting plate and fits against the inner wall of the sampling tube.

[0044] Furthermore, as a preferred embodiment, the bottom of the sampling tube is provided with a limiting ring corresponding to the rotating sealing surface, and the interior is provided with two positioning rings distributed vertically.

[0045] Furthermore, preferably, the detection component includes:

[0046] The filter rings are positioned between the positioning rings and are slidably connected to the movable adjustment shaft;

[0047] The metal detection ball is placed inside the sampling tube, above the filter ring.

[0048] Compared with the prior art, the beneficial effects of the present invention are:

[0049] In this invention, by setting up an annular buoyancy chamber and a flexible airbag, and by coordinating the spiral conveying component and the gravity dispersing component, the distribution of counterweight sand is dynamically adjusted, the horizontal balance of the device is maintained, and the device is able to cope with water surface fluctuations. In addition, the dynamic adjustment of buoyancy enables the device to float or sink stably.

[0050] The lifting and rotating mechanism drives the screw conveyor assembly to move up and down and rotate, thereby achieving precise control of the counterweight sand conveying path and realizing the effect of gravity concentration or dispersion adjustment.

[0051] By adjusting the meshing settings of the sampling component and the lifting gear, different sampling depths can be selected according to the detection requirements, and the effect of multi-depth continuous sampling can be achieved.

[0052] By rotating the sealing surface in conjunction with the limiting ring, the system can automatically open during sampling and close after sampling to prevent sample leakage.

[0053] By setting up a filter ring network and a metal detection ball, the turbidity and density of the water can be monitored in real time, achieving the effect of preliminary water quality testing;

[0054] By linking the counterweight device with the sampling and detection device, the goal is to achieve accurate sampling and real-time detection while stabilizing the device's posture. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the overall structure of a water quality testing device for environmental water testing.

[0056] Figure 2 This is a schematic diagram of the main structure;

[0057] Figure 3 This is a schematic diagram of the counterweight device.

[0058] Figure 4 Exploded view of the counterweight device;

[0059] Figure 5 This is a schematic diagram of the spiral conveyor assembly structure;

[0060] Figure 6 This is a schematic diagram of the gravity dispersion component structure;

[0061] Figure 7 This is a schematic diagram of the sampling and testing device.

[0062] Figure 8 This is a schematic diagram of the driver component structure;

[0063] Figure 9 A schematic diagram of the structure of the sampling component and the detection component for adjustment;

[0064] In the diagram: 1. Main body; 2. Buoyancy chamber; 3. Counterweight device; 4. Sampling and detection device; 11. Upper connecting plate; 12. Lower connecting plate; 13. Support leg; 21. Flexible airbag; 31. Fixed cylinder; 32. Screw conveyor assembly; 33. Gravity dispersion assembly; 34. Lifting and rotating mechanism; 35. Drive motor; 41. Limiting housing; 42. Fixed shaft; 43. Lifting gear; 44. Lower partition plate; 45. Drive assembly; 46. Adjusting sampling assembly; 47. Detection assembly; 321. Conveying pipe; 322. Connecting bar; 3 23. Dispersion tube; 324. Output port; 325. Blocking and recovery inclined ring; 326. Conveying spiral shaft; 331. Connecting housing; 332. Upper partition plate; 333. Arc guide body; 334. Closed ring surface; 451. Drive shaft; 452. Long gear; 461. Limiting outer shaft; 462. Control gear; 463. Moving adjustment shaft; 464. Sampling cylinder; 465. Connecting piece; 466. Rotating sealing surface; 471. Filter ring; 472. Metal detection ball; 4641. Limiting ring; 4642. Positioning ring. Detailed Implementation

[0065] Please see Figures 1-9 In this embodiment of the invention, a water quality testing device for environmental water testing includes:

[0066] The main body 1 has an upper connecting plate 11 and a lower connecting plate 12 respectively, and the outer side of the upper connecting plate 11 is provided with ring-shaped supporting legs 13;

[0067] The buoyancy chamber 2 is ring-shaped and fixed between the upper connecting plate 11 and the lower connecting plate 12. It is fixed by the support leg 13 and has a flexible airbag 21 inside.

[0068] The counterweight device 3 is fixed in the upper middle part of the main body 1, located at the center of the main body 1;

[0069] The sampling and testing device 4 is fixed at the bottom of the lower connecting plate 12.

[0070] In this embodiment, the counterweight device 3 includes:

[0071] The fixed cylinder 31 is fixed at the top center of the lower connecting plate 12 and located in the middle of the buoyancy chamber 2;

[0072] The screw conveyor assembly 32 is movably disposed within the fixed cylinder 31;

[0073] The gravity dispersion component 33 is fixed on the upper connecting plate 11, and the spiral conveying component 32 is rotatably connected to the inner side of the gravity dispersion component 33.

[0074] The lifting and rotating mechanism 34 is fixed on the top of the gravity dispersion component 33 and connected to the upper part of the screw conveyor component 32;

[0075] The drive motor 35 is fixed on the top of the screw conveyor assembly 32.

[0076] In other words, when the water quality testing device needs to float, gas is injected into the flexible airbag 21 to increase the overall buoyancy of the device. The lifting and rotating mechanism 34 then drives the spiral conveying assembly 32 to move upwards on the fixed cylinder 31, bringing the spiral conveying assembly 32 into contact with the gravity dispersing assembly 33. The driving motor 35 then drives the spiral conveying assembly 32 to convey the internal counterweight sand upwards. With the assistance of the lifting and rotating mechanism 34, the counterweight sand is evenly dispersed around the gravity dispersing assembly 33, reducing the center gravity at the bottom of the water quality testing device and maintaining balance, thus ensuring the stable floating of the entire device. It should be noted that the counterweight sand is used in the spiral conveying assembly 32 and the gravity dispersing assembly 33. The main medium for adjusting gravity distribution between components; when the water quality testing device floats and tilts due to the influence of the water surface, the lifting and rotating mechanism 34 transports the counterweight sand mainly to the tilted end of the water quality testing device, maintaining the stability of the water quality testing device through gravity adjustment; when the water quality testing device needs to sink, the lifting and rotating mechanism 34 drives the spiral conveying component 32 to move downward, separating it from the gravity dispersion component 33. The counterweight sand originally on the gravity dispersion component 33 flows to the spiral conveying component 32 and concentrates at the bottom center of the spiral conveying component 32, increasing the weight at the bottom center, and appropriately discharging the gas inside the flexible airbag 21 in the buoyancy chamber 2, so that the water quality testing device sinks stably and accurately determines the target position.

[0077] In this embodiment, the spiral conveying assembly 32 includes:

[0078] The conveying pipe 321 is slidably disposed inside the fixed cylinder 31;

[0079] Multiple connecting strips 322 are arranged in a ring and fixed to the top of the conveying pipe 321;

[0080] The dispersion tube 323 is fixed to the top of the connecting strip 322, and the upper part of its outer side is connected to the lifting and rotating mechanism 34.

[0081] The output port 324 is located on one side of the lower part of the dispersion tube 323, corresponding to the gravity dispersion component 33;

[0082] The sealing and recovery inclined ring 325 has an inner ring fixed at the connection between the conveying pipe 321 and the connecting strip 322, and an outer ring corresponding to the bottom of the gravity dispersion component 33.

[0083] The conveying spiral shaft 326 is rotatably disposed inside the conveying pipe 321 and the dispersing pipe 323, and its top passes through the dispersing pipe 323 and is connected to the drive motor 35.

[0084] In this embodiment, the gravity dispersion component 33 includes:

[0085] The connecting housing 331 is fixed to the top of the upper connecting plate 11 and supports the lifting and rotating mechanism 34;

[0086] Multiple upper partition plates 332 are arranged in a ring and fixed to the inner side of the connecting housing 331, and the inner side of the upper partition plates 332 is in contact with the outer wall of the screw conveyor assembly 32.

[0087] The arc guide body 333 is fixed to the lower part of the upper partition plate 332, and there is a gap between the top of the arc guide body 333 and the top of the upper partition plate 332 corresponding to the output port 324, and there is a gap between the outer side of the arc guide body 333 and the connecting housing 331 corresponding to the blocking and recycling inclined ring 325.

[0088] The closed annular surface 334 is fixed to the inner bottom of the arc guide body 333 and corresponds to the connecting strip 322.

[0089] In other words, when the lifting and rotating mechanism 34 drives the spiral conveying assembly 32 to move upward through the dispersing pipe 323, the top of the conveying pipe 321 is in contact with the closed annular surface 334 at the bottom inner side of the gravity dispersing assembly 33, the connecting strip 322 is in contact with the inner wall of the gravity dispersing assembly 33, the bottom of the output port 324 is in contact with the top of the arc guide body 333 and the upper partition plate 332, and the sealing and recycling inclined ring 325 is in contact with the arc guide body 333 and the connecting housing 331, thereby driving the motor. 35 controls the conveying screw shaft 326 to rotate forward, conveying the counterweight sand at the bottom of the conveying pipe 321 upward, and conveying it through the output port 324 to the corresponding upper partition plates 332. The sand is then guided by the arc guide body 333 to flow towards the connection point between the outer side of the arc guide body 333 and the sealing and recovery inclined ring 325. Meanwhile, the lifting and rotating mechanism 34 drives the screw conveying assembly 32 to rotate as a whole through the dispersing pipe 323, so that the output port 324 sequentially corresponds to different intervals between the upper partition plates 332, conveying an equal amount of counterweight sand to each interval, or according to... Regarding the water surface conditions, the counterweight sand is distributed and transported to maintain the overall stability and balance of the water quality testing device on the water surface. When the lifting and rotating mechanism 34 drives the spiral conveying assembly 32 to move downward through the dispersion pipe 323, the top of the conveying pipe 321 disengages from the closed annular surface 334 at the bottom inner side of the gravity dispersion assembly 33, and the lower connecting strip 322 is positioned between the closed annular surface 334 and the conveying pipe 321. The lower part of the output port 324 is in contact with the inner wall of the arc guide body 333, and the sealing and recovery inclined ring 325 disengages from the arc guide. The space between the body 333 and the connecting shell 331, and the arc-shaped guide of the counterweight sand at the connection between the body 333 and the sealing and recovery inclined ring 325, flows along the sealing and recovery inclined ring 325 to the conveying pipe 321. At the same time, the drive motor 35 controls the conveying spiral shaft 326 to reverse, conveying the counterweight sand to the bottom of the conveying pipe 321, so that the counterweight sand is concentrated at the bottom center of the conveying pipe 321, increasing the weight at the bottom center. With the cooperation of the flexible airbag 21 in the buoyancy chamber 2, the water quality detection device sinks stably and accurately determines the target position.

[0090] In this embodiment, the sampling and detection device 4 includes:

[0091] The limiting housing 41 is fixed to the bottom of the lower connecting plate 12;

[0092] The fixed shaft 42 is fixed at the bottom center of the lower connecting plate 12 and is located inside the limiting housing 41;

[0093] The lifting gear 43 is movably mounted on the fixed shaft 42;

[0094] The lower partition plate 44 is provided in multiple rings and is fixed to the bottom of the lower connecting plate 12, located inside the limiting housing 41;

[0095] The drive assembly 45 is disposed in the interval between the two lower spacers 44;

[0096] Multiple adjustable sampling components 46 are distributed along an arc and are arranged sequentially between the lower partition plates 44.

[0097] The detection component 47 is located within the adjustment sampling component 46.

[0098] In other words, after the position of the water quality testing device is determined and stabilized under the adjustment of the counterweight device 3, the lifting gear 43 is controlled to move up and down on the fixed shaft 42, so that the lifting gear 43 meshes with the adjustment sampling component 46 that needs to be sampled. Then, under the control of the drive component 45, the corresponding adjustment sampling component 46 is driven to perform fixed-point sampling through the transmission of the lifting gear 43, and the detection component 47 performs preliminary detection on the water sample.

[0099] In this embodiment, the driving component 45 includes:

[0100] The drive shaft 451 is fixed to the bottom of the lower connecting plate 12 and is driven by a motor.

[0101] The long gear 452 is fixed to the bottom of the drive shaft 451 and meshes with the lifting gear 43.

[0102] In other words, under the action of the long gear 452, when the lifting gear 43 moves up and down on the fixed shaft 42, it always meshes with the long gear 452. Then, when the motor drives the drive shaft 451 to rotate, the lifting gear 43 drives the corresponding adjustment and sampling component 46 to take samples.

[0103] In this embodiment, the adjustment sampling component 46 includes:

[0104] The outer shaft 461 is fixed to the bottom of the lower connecting plate 12, and the length of the outer shaft 461 in each adjusting sampling assembly 46 increases sequentially.

[0105] The control gear 462 is rotated at the bottom of the limiting outer shaft 461;

[0106] The movable adjustment shaft 463 is threadedly connected to the control gear 462, its top is slidably connected to the limiting outer shaft 461, and its bottom passes through the limiting housing 41;

[0107] The sampling cylinder 464 is fixed at the bottom of the limiting housing 41 and is slidably connected to the movable adjustment shaft 463;

[0108] Connecting piece 465 is fixed to the bottom of movable adjusting shaft 463;

[0109] The rotating sealing surface 466 is rotated and positioned at the bottom of the connecting piece 465, fitting against the inner wall of the sampling cylinder 464.

[0110] In this embodiment, the bottom of the sampling cylinder 464 is provided with a limiting ring 4641 corresponding to the rotating sealing surface 466, and two positioning rings 4642 are provided inside, which are distributed vertically.

[0111] In other words, under the action of the limiting ring 4641 and the restriction of the movable adjusting shaft 463 and the connecting piece 465, the rotating sealing surface 466 completely seals the bottom of the sampling cylinder 464. When the lifting gear 43 drives the control gear 462 to rotate forward at the bottom of the limiting outer shaft 461, the movable adjusting shaft 463 is driven to move upward within the limiting outer shaft 461 and the sampling cylinder 464 under the action of the thread. At the same time, the rotating sealing surface 466 is driven to move upward through the connecting piece 465. Then, under the action of water pressure, the rotating sealing surface 466 deflects around the center connected to the connecting piece 465, and the water sample enters the sampling cylinder 464. After sampling is completed, the lifting gear 43 drives the control gear 462 to reverse at the bottom of the limiting outer shaft 461. Then, under the action of the thread, the moving adjustment shaft 463 moves downward within the limiting outer shaft 461 and the sampling cylinder 464. At the same time, the rotating sealing surface 466 moves downward through the connecting piece 465. Under the restriction of the bottom limiting ring 4641 of the sampling cylinder 464, the rotating sealing surface 466 returns to the horizontal state and seals the sampling cylinder 464, completing the sampling. Then, by adjusting the depth of the water in which the water quality detection device is located, and by the engagement of the lifting gear 43 with different adjusting sampling components 46, sampling of water at different depths can be completed.

[0112] In this embodiment, the detection component 47 includes:

[0113] The filter ring 471 is disposed between the positioning rings 4642 and is slidably connected to the movable adjustment shaft 463;

[0114] Metal detection ball 472 is placed inside sampling tube 464, above filter ring 471.

[0115] In other words, after the water enters the sampling cylinder 464, it flows from bottom to top, passes through the filter ring 471, and enters the upper part of the sampling cylinder 464, placing the metal detection ball 472 within the water. Furthermore, the position of the filter ring 471 is fixed by the positioning ring 4642 within the sampling cylinder 464. As the amount of filtered impurities increases after the water passes through the filter ring 471, the resistance to the filter ring 471 increases. Real-time monitoring of the resistance of the filter ring 471 allows for the detection of water turbidity. Additionally, the metal detection ball 472 consists of multiple metal balls of different densities. Based on the settling behavior of these metal detection balls in the water, the density of the water can be detected.

[0116] In practice, when the water quality testing device needs to float, gas is first injected into the flexible airbag 21 to increase the overall buoyancy of the device. The lifting and rotating mechanism 34 then drives the spiral conveying assembly 32 upwards via the dispersion pipe 323. The top of the conveying pipe 321 is aligned with the closed annular surface 334 at the bottom inner side of the gravity dispersion assembly 33. The connecting strip 322 is aligned with the inner wall of the gravity dispersion assembly 33. The bottom of the output port 324 corresponds to the top of the arc guide body 333 and the upper partition plate 332. The sealing and recovery inclined ring 325 corresponds to the arc guide body 333 and the connecting housing 331. The drive motor 35 controls the conveying spiral shaft 326 to rotate forward, conveying the counterweight sand at the bottom of the conveying pipe 321 upward. The counterweight sand is then conveyed through the output port 324 to the corresponding upper partition plates 332. It is then guided by the arc guide body 333 to flow to the connection between the outer side of the arc guide body 333 and the sealing and recovery inclined ring 325. The lifting and rotating mechanism 34 drives the spiral conveying assembly 32 to rotate as a whole through the dispersion pipe 323, so that the output port 324 corresponds to the interval between different upper partition plates 332 in sequence, conveying an equal amount of counterweight sand between each interval, or distributing and conveying the counterweight sand according to the water surface conditions, so as to maintain the overall stability and balance of the water quality detection device on the water surface.When the water quality testing device needs to be lowered, the lifting and rotating mechanism 34 drives the spiral conveying assembly 32 to move downwards as a whole through the dispersion pipe 323. The top of the conveying pipe 321 disengages from the closed annular surface 334 at the bottom of the inner side of the gravity dispersion assembly 33. The lower connecting strip 322 is located between the closed annular surface 334 and the conveying pipe 321. The lower part of the output port 324 is in contact with the inner wall of the arc guide body 333. The sealing and recovery inclined ring 325 disengages from the gap between the arc guide body 333 and the connecting shell 331. Then, the counterweight sand at the connection between the arc guide body 333 and the sealing and recovery inclined ring 325 flows along the sealing and recovery inclined ring 325 towards the conveying pipe 321. At the same time, the drive motor 35 controls the conveying spiral shaft 326 to reverse. The counterweight sand is conveyed to the bottom of the conveying pipe 321, concentrating it at the center of the bottom of the pipe 321 to increase the weight at the bottom center. With the assistance of the flexible airbag 21 in the buoyancy chamber 2, the water quality testing device sinks stably and accurately determines its target position. After the position of the water quality testing device is determined, the lifting gear 43 is controlled to move up and down on the fixed shaft 42, engaging with the sampling adjustment component 46. Under the control of the drive component 45, the lifting gear 43 drives the control gear 462 on the corresponding sampling adjustment component 46 to rotate clockwise at the bottom of the limiting outer shaft 461, thereby moving the adjustment shaft 463 under the action of the thread. The outer shaft 461 and sampling cylinder 464 move upwards, while the connecting piece 465 drives the rotating sealing surface 466 to move upwards. Under water pressure, the rotating sealing surface 466 deflects around the center connected to the connecting piece 465, allowing the water sample to enter the sampling cylinder 464. After sampling, the lifting gear 43 drives the control gear 462 to reverse at the bottom of the outer shaft 461, causing the adjusting shaft 463 to move downwards within the outer shaft 461 and sampling cylinder 464 under the action of the thread. Simultaneously, the connecting piece 465 drives the rotating sealing surface 466 to move downwards. Under the constraint of the bottom limiting ring 4641 of the sampling cylinder 464, the rotating sealing surface 466 returns to a horizontal state. The sampling cylinder 464 is sealed to complete the sampling. During the sampling process, after the water enters the sampling cylinder 464, the water flows from bottom to top, passes through the filter ring 471, and then enters the upper part of the sampling cylinder 464. After the water passes through the filter ring 471, as the amount of filtered impurities increases, the resistance of the filter ring 471 increases. The resistance of the filter ring 471 is monitored in real time to detect the turbidity of the water. In addition, the density of the water is detected based on the settling of metal detection balls 472 of different densities in the water. Furthermore, by adjusting the depth of the water quality detection device in the water, and by the engagement of the lifting gear 43 with different adjusting sampling components 46, sampling and testing of water at different depths are completed.

[0117] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A water quality testing device for environmental water testing, characterized in that: include: The main body (1) is provided with an upper connecting plate (11) and a lower connecting plate (12) respectively. The outer side of the upper connecting plate (11) is provided with ring-shaped supporting feet (13). The buoyancy chamber (2) is ring-shaped and fixed between the upper connecting plate (11) and the lower connecting plate (12). It is fixed by the support leg (13) and has a flexible airbag (21) inside. The counterweight device (3) is fixed in the upper middle part of the main body (1) and located at the center of the main body (1); The sampling and testing device (4) is fixed at the bottom of the lower connecting plate (12).

2. The water quality testing device for environmental water testing according to claim 1, characterized in that: The counterweight device (3) includes: The fixed cylinder (31) is fixed at the top center of the lower connecting plate (12) and located in the middle of the buoyancy chamber (2); The screw conveyor assembly (32) is movably disposed within the fixed cylinder (31); The gravity dispersion component (33) is fixed on the upper connecting plate (11), and the spiral conveying component (32) is rotatably connected to the inner side of the gravity dispersion component (33); The lifting and rotating mechanism (34) is fixed on the top of the gravity dispersion component (33) and connected to the upper part of the screw conveyor component (32); The drive motor (35) is fixed on top of the screw conveyor assembly (32).

3. The water quality testing device for environmental water testing according to claim 2, characterized in that: The spiral conveyor assembly (32) includes: The conveying pipe (321) is slidably disposed inside the fixed cylinder (31); Multiple connecting strips (322) are arranged in a ring and fixed to the top of the conveying pipe (321); The dispersion tube (323) is fixed to the top of the connecting strip (322), and the upper part of the outer side is connected to the lifting and rotating mechanism (34); The output port (324) is located on the lower side of the dispersion tube (323), corresponding to the gravity dispersion component (33); The sealing and recovery inclined ring (325) has an inner ring fixed at the connection between the conveying pipe (321) and the connecting strip (322), and an outer ring corresponding to the bottom of the gravity dispersion component (33); The conveying spiral shaft (326) is rotatably disposed inside the conveying pipe (321) and the dispersing pipe (323), and its top passes through the dispersing pipe (323) and is connected to the drive motor (35).

4. The water quality testing device for environmental water testing according to claim 3, characterized in that: The gravity dispersion component (33) includes: The connecting housing (331) is fixed to the top of the upper connecting plate (11) and carries the lifting and rotating mechanism (34). Multiple upper partition plates (332) are arranged in a ring and fixed to the inner side of the connecting housing (331), and the inner side of the upper partition plates (332) is in contact with the outer wall of the screw conveyor assembly (32); The arc guide (333) is fixed to the lower part of the upper partition plate (332), and there is a gap between the top of the arc guide (333) and the top of the upper partition plate (332) corresponding to the output port (324), and there is a gap between the outer side of the arc guide (333) and the connecting housing (331) corresponding to the sealing and recycling inclined ring (325); The closed annular surface (334) is fixed to the bottom of the inner side of the arc guide body (333) and corresponds to the connecting strip (322).

5. The water quality testing device for environmental water testing according to claim 1, characterized in that: The sampling and detection device (4) includes: The limiting housing (41) is fixed to the bottom of the lower connecting plate (12); The fixed shaft (42) is fixed at the bottom center of the lower connecting plate (12) and located inside the limiting housing (41); The lifting gear (43) is movably mounted on the fixed shaft (42); The lower partition plate (44) is provided in multiple rings and is fixed at the bottom of the lower connecting plate (12) and located inside the limiting housing (41); The drive assembly (45) is disposed in the space between the two lower spacers (44); Multiple adjustable sampling components (46) are arranged along the arc and sequentially between the lower partition plates (44); The detection component (47) is located within the adjustment sampling component (46).

6. The water quality testing device for environmental water testing according to claim 5, characterized in that: The driving component (45) includes: The drive shaft (451) is fixed to the bottom of the lower connecting plate (12) and is equipped with a motor drive; The long gear (452) is fixed to the bottom of the drive shaft (451) and meshes with the lifting gear (43).

7. The water quality testing device for environmental water testing according to claim 6, characterized in that: The adjustment sampling component (46) includes: The outer shaft (461) is fixed to the bottom of the lower connecting plate (12), and the length of the outer shaft (461) in each adjustment sampling assembly (46) increases sequentially; The control gear (462) is rotatably mounted at the bottom of the limiting outer shaft (461); The movable adjustment shaft (463) is threadedly connected to the control gear (462), its top is slidably connected to the limiting outer shaft (461), and its bottom passes through the limiting housing (41). The sampling cylinder (464) is fixed to the bottom of the limiting housing (41) and is slidably connected to the movable adjustment shaft (463); The connecting piece (465) is fixed to the bottom of the movable adjusting shaft (463); The sealing surface (466) is rotated, and the middle part is rotated at the bottom of the connecting piece (465) and fits against the inner wall of the sampling tube (464).

8. The water quality testing device for environmental water testing according to claim 7, characterized in that: The bottom of the sampling tube (464) is provided with a limiting ring (4641) corresponding to the rotating sealing surface (466), and the inside is provided with two positioning rings (4642) distributed vertically.

9. The water quality testing device for environmental water testing according to claim 8, characterized in that: The detection component (47) includes: A filter ring (471) is disposed between positioning rings (4642) and is slidably connected to the movable adjustment shaft (463); The metal detection ball (472) is placed inside the sampling tube (464) above the filter ring (471).

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