Internet of Things detection equipment capable of realizing fixed-point three-dimensional lake water quality detection

Abstract

The invention relates to the technical field of water quality detection equipment, in particular to internet-of-things detection equipment capable of realizing fixed-point three-dimensional lake water quality detection, which comprises a sampling mechanism capable of sampling in real time in the water quality detection process, the sampling mechanism comprises a turntable arranged in a shell, a hollow rotating rod is inserted into the turntable, and the hollow rotating rod is inserted into the shell. A matching groove is formed in the upper end of the hollow rotating rod, a hollow shaft is inserted into the matching groove, multiple sets of telescopic water pipes are arranged on the outer side of the rotating disc at equal intervals in a surrounding mode, and piston rods are elastically connected to the interiors of the telescopic water pipes through reset springs; the end, close to the rotary disc, of the piston rod penetrates through the inner wall of the telescopic water pipe and is fixedly connected with a limiting plate, and multiple sets of balls are rotationally installed on the opposite faces of the limiting plate. Through cooperative use of all parts, real-time sampling can be performed in the water quality detection process, so that comparison with a detection result of a detection head can be performed during subsequent water quality analysis, and the accuracy of the result is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection equipment, and specifically to an Internet of Things detection equipment that can achieve fixed-point three-dimensional lake water quality detection. Background Technique

[0002] Water quality detection refers to the determination and analysis of various physical, chemical, and biological characteristics in water bodies to evaluate the quality status of water bodies. These detections aim to determine whether there are harmful substances, microbial contamination, the concentration of dissolved substances, and other physical characteristics of water (such as temperature, color, turbidity, etc.) in the water body, so as to judge whether the water body is suitable for human drinking, agricultural irrigation, industrial water use, or other specific purposes.

[0003] According to an Internet of Things detection device that can achieve fixed-point three-dimensional lake water quality detection with the publication number of "CN107045052B" disclosed on the Chinese Patent Network, the device includes a sealed cabin. An anti-collision pad is bonded to the lower surface of the sealed cabin. A solar panel is arranged on the top of the sealed cabin. A bracket is arranged on the top of the sealed cabin, and a radio frequency transmitter is installed on the bracket. A warning light is installed on the top of the bracket on one side of the radio frequency transmitter; by adjusting the positions of the sensor mounting tube and the water quality sensor mounting platform, the water quality of different depths of water areas can be detected; the cooperation of the positioning anchor and the positioning anchor chain can ensure fixed-point monitoring of water quality within a certain range and achieve real-time monitoring of water quality.

[0004] However, during the use of the above-mentioned disclosed document, it is impossible to directly obtain real-time water samples during the detection process, which leads to the monitoring results being completely dependent on the readings of remote devices. In case of emergencies such as sudden water quality pollution, if the device cannot take samples immediately, it is difficult to accurately verify the water quality changes and compare them with the detection results of the detection head, affecting the accuracy of the water quality monitoring results. Summary of the Invention

[0005] The purpose of the present invention is to provide an Internet of Things detection equipment that can achieve fixed-point three-dimensional lake water quality detection, so as to solve the problem in the prior art in the above-mentioned background technology that real-time sampling cannot be carried out, making it difficult to analyze water quality changes and compare them with the detection results of the detection head when water quality is polluted, affecting the accuracy of water quality monitoring results.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An Internet of Things detection equipment that can achieve fixed-point three-dimensional lake water quality detection, including a housing. A plurality of groups of detection heads are equidistantly and circumferentially installed on the surface of the housing, and a plurality of groups of water inlet holes are equidistantly and circumferentially opened on the surface of the housing. The water inlet holes and the detection heads are located on the same horizontal plane. It further includes: An airbag is fixedly installed at the upper end of the housing, a base is meshed and connected to the lower end of the housing, and a counterweight is arranged below the base; It further includes a sampling mechanism capable of real-time sampling during water quality detection. The sampling mechanism includes a turntable disposed inside the housing. A hollow rotating rod is inserted inside the turntable. A mating groove is formed at the upper end of the hollow rotating rod, and a hollow shaft is inserted inside the mating groove. A plurality of telescopic water pipes are equidistantly arranged around the outside of the turntable. A piston rod is elastically connected inside the telescopic water pipe through a return spring. One end of the piston rod close to the turntable penetrates through the inner wall of the telescopic water pipe and is fixedly connected to a limiting plate. A plurality of balls are rotatably installed on the opposite surfaces of the limiting plate.

[0007] Furthermore, a plurality of water storage tanks are equidistantly arranged around the upper surface of the base. A plurality of through grooves communicating with each other are formed inside the base. The through grooves and the water storage tanks are communicated through inserting rods installed at the lower ends of the water storage tanks.

[0008] Furthermore, a floating plate is slidably fitted inside the water storage tank. The floating plate is elastically connected to the bottom surface of the water storage tank through a connecting spring fixedly connected to the lower surface.

[0009] Furthermore, a notch is formed at the center position of the upper surface of the counterweight block. Two groups of clamping grooves are symmetrically formed on the inner wall of the notch.

[0010] Furthermore, the turntable is in a fan-shaped structure, and two inclined surfaces are formed on one side of the turntable, and an arc surface is formed for transition between the two inclined surfaces.

[0011] Furthermore, the lower end of the hollow rotating rod is rotatably connected to the upper surface of the base, and the hollow rotating rod is communicated with the through groove.

[0012] Furthermore, a waterproof motor is fixedly connected to the upper end of the hollow shaft, and the waterproof motor is fixedly installed on the inner top surface of the housing.

[0013] Furthermore, the telescopic water pipe is disposed above the water storage tank and communicated with the water storage tank. One end of the telescopic water pipe away from the hollow rotating rod is inserted into the water inlet hole.

[0014] Furthermore, it further includes a separation mechanism for controlling the separation of the base and the counterweight block. The separation mechanism includes a round rod inserted inside the hollow rotating rod. The upper end of the round rod penetrates through the inside of the hollow shaft and extends into the inside of the airbag, and the upper end of the round rod is fixedly connected to the inner top surface of the airbag. The lower end of the round rod penetrates through the inside of the base and extends into the notch. Two groups of elastically telescopic clamping blocks are symmetrically installed inside the round rod, and the clamping blocks are clamped and matched with the clamping grooves. The lower ends of the clamping blocks are fixedly connected to the bottom surface of the notch through traction ropes.

[0015] The technical solution provided by the present invention has the following beneficial effects compared with the known prior art: 1. The present invention, through the cooperating components such as the turntable, telescopic water pipe, and piston rod, etc., when the detection head detects the water quality, the waterproof motor starts to be powered on and operates. The turntable sleeved on the surface of the hollow rotating rod is driven by the hollow shaft to rotate by 90 degrees, so that the limiting plate close to a set of inclined planes starts to move towards the center position of the housing under the reaction force generated by the return spring and fits with the arc surface. As a result, water can enter the interior of the base through the water inlet hole and the telescopic water pipe to start real-time sampling. When the piston rod starts to contact the inclined plane, as the turntable rotates, the piston rod starts to be pushed out, gradually sealing the water storage tank, achieving the purpose of sampling while detecting, facilitating subsequent analysis and comparison of the water quality, and ensuring the accuracy of the detection results.

[0016] 2. The present invention, through the cooperating components such as the floating plate, round rod, and towing rope, etc., when water enters the interior of the water storage tank, it will gradually squeeze the floating plate to move downward and compress the connecting spring, so that the gas below the floating plate starts to be transported through the through groove and the hollow rotating rod into the interior of the airbag, causing the airbag to expand. As a result, the round rod starts to move upward, causing the clamping block to slowly separate from the clamping groove. After all the water storage tanks are sampled, the expanded airbag drives the clamping block to completely separate from the clamping groove through the round rod, causing the base to separate from the counterweight block. Under the buoyancy of the airbag, the sampled water storage tank can float to the water surface for easy recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is Figure 1 a schematic plan view of; Figure 3 It is a schematic diagram of the overall structure of the sampling mechanism of the present invention; Figure 4 It is a schematic diagram of the separation of the structure of the water storage tank and the base of the present invention; Figure 5 It is Figure 4 an enlarged schematic view of the structure at A in; Figure 6 It is a schematic diagram of the internal structure of the water storage tank of the present invention; Figure 7 It is Figure 6 an enlarged schematic view of the structure at B in; Figure 8 Partial structural plan view of the sampling mechanism of the present invention; Figure 9 Schematic diagram of the separation mechanism of the present invention; Figure 10 is Figure 9 Enlarged schematic diagram of the structure at position C in

[0019] In the figure: 1. Outer shell; 101. Detection head; 102. Water inlet hole; 2. Airbag; 3. Base; 301. Water storage tank; 3011. Floating plate; 3012. Connecting spring; 302. Through groove; 4. Counterweight; 401. Notch; 402. Card slot; 5. Sampling mechanism; 501. Turntable; 502. Hollow rotating rod; 503. Fitting groove; 504. Hollow shaft; 505. Telescopic water pipe; 506. Piston rod; 507. Limiting plate; 5071. Ball; 6. Separation mechanism; 601. Round rod; 602. Block; 603. Towing rope. Specific embodiments

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Embodiment: An Internet of Things detection device capable of realizing fixed-point three-dimensional lake water quality detection, as Figures 1 - 10 shown, includes an outer shell 1, which can play a protective role, and a power source is installed inside the outer shell 1, which is not shown in the figure; a plurality of groups of detection heads 101 are equidistantly and circumferentially installed on the surface of the outer shell 1. The detection head 101 is a prior art device that can detect water quality, and devices based on physical, chemical, and optical principles can be selected according to needs; it should be noted that the detection head 101 is electrically connected to the power source installed inside the outer shell 1; a plurality of groups of water inlet holes 102 are equidistantly and circumferentially opened on the surface of the outer shell 1. By opening the water inlet holes 102, it is convenient to perform real-time sampling of water quality during the process of detecting water quality; it should be noted that in order to avoid the influence of large impurities in the water on sampling, a filter screen can be installed inside the water inlet holes 102; the water inlet holes 102 and the detection heads 101 are located on the same horizontal plane. By arranging the water inlet holes 102 and the detection heads 101 on the same horizontal plane, it is convenient to perform detection and sampling at the same depth, so as to facilitate subsequent analysis of water quality.

[0023] It also includes an airbag 2 fixedly installed at the upper end of the outer shell 1. By setting the airbag 2, it is convenient to float the device to the water surface after sampling. The lower end of the outer shell 1 is meshed with a base 3. By setting the base 3, on the one hand, it can support the installation of other components, and on the other hand, it can seal the lower end of the outer shell 1 to ensure the dryness inside the outer shell 1. A plurality of groups of water storage tanks 301 are equidistantly and circularly installed on the upper surface of the base 3, which are used to store the samples of lake water at the same depth during the detection by the detection head 101. It should be noted that when the water storage tank 301 is installed on the upper surface of the base 3, it can be fixed by an elastic band, that is, the elastic band is sleeved on the surface of a plurality of groups of water storage tanks 301 to ensure the stability of the water storage tank 301.

[0024] Wherein, a floating plate 3011 is slidably fitted inside the water storage tank 301. The floating plate 3011 is elastically connected to the bottom surface of the water storage tank 301 through a connecting spring 3012 fixedly connected to the lower surface. By setting the floating plate 3011 and the connecting spring 3012, when sampling the lake water, the floating plate 3011 can be extruded to move downward and compress the connecting spring 3012, so as to realize the function of compressing the gas inside the water storage tank 301. A plurality of groups of mutually communicating through grooves 302 are opened inside the base 3. The through grooves 302 are communicated with the water storage tank 301 through inserting rods installed at the lower end of the water storage tank 301. By setting the through grooves 302, when the gas inside the water storage tank 301 is compressed, it can enter the inside of the through grooves 302. It should be noted that a one-way valve is installed inside the through grooves 302, and this one-way valve is used to prevent the gas from flowing back into the inside of the water storage tank 301.

[0025] Combined with the attached Figure 1 and the attached Figure 2 and the attached Figure 9 and the attached Figure 10 Furthermore, a counterweight 4 is arranged below the base 3. By setting the counterweight 4, it is convenient to sink the device into the lake water for fixed-point detection and sampling of water quality. A notch 401 is opened at the center position of the upper surface of the counterweight 4. By setting the notch 401, it can play a role in connection and positioning. Two groups of clamping grooves 402 are symmetrically opened on the inner wall of the notch 401. By setting the clamping grooves 402, it is convenient to cooperate with other components so that the counterweight 4 can be installed on the lower surface of the base 3 in the initial state.

[0026] Combined with the attached Figure 1 - the attached Figure 10, it further includes a sampling mechanism 5 capable of sampling in real time during the water quality detection process, so as to achieve sampling while detecting the water quality, facilitating subsequent water quality detection and ensuring the accuracy of the water quality detection results; the sampling mechanism 5 includes a turntable 501 arranged inside the housing 1. The turntable 501 is in a fan-shaped structure, and two groups of inclined surfaces are provided on one side of the turntable 501. An arc surface is formed between the two groups of inclined surfaces for transition. By setting the turntable 501, the purpose of sampling can be achieved through its rotation; it should be noted that the center lines of the two groups of inclined surfaces and the arc surface are symmetrically arranged; by setting the two groups of inclined surfaces, one group of inclined surfaces is used for sampling the water source, the arc surface can ensure a stable sampling speed of the lake water, and the other group of inclined surfaces is convenient for stopping sampling subsequently, ensuring that the water storage tank 301 can store enough lake water. Among them, a hollow rotating rod 502 is inserted into the turntable 501. The lower end of the hollow rotating rod 502 is rotatably connected to the upper surface of the base 3. By setting the hollow rotating rod 502, the position of the turntable 501 can be limited, and at the same time, the turntable 501 can be driven to rotate; the hollow rotating rod 502 is communicated with the through groove 302. Through the communication between the hollow rotating rod 502 and the through groove 302, the gas inside the through groove 302 can enter the inside of the hollow rotating rod 502; a matching groove 503 is provided at the upper end of the hollow rotating rod 502, and a hollow shaft 504 is inserted into the matching groove 503. The upper end of the hollow shaft 504 is fixedly connected with a waterproof motor, and the waterproof motor is fixedly installed on the inner top surface of the housing 1. By setting the matching groove 503 and the hollow shaft 504, they can rotate synchronously under the action of the waterproof motor; it should be noted that the waterproof motor is electrically connected to the power supply. When the power supply supplies power to the detection head 101 to detect the water quality, the waterproof motor will also be powered at the same time, so that the waterproof motor drives the hollow rotating rod 502 to rotate 90 degrees through the hollow shaft 504; it should be noted that the upper end of the hollow shaft 504 penetrates through the inside of the housing 1 and is communicated with the airbag 2. When the lower end of the hollow shaft 504 is inserted and matched with the matching groove 503, the interface is sealed by a gasket, so that the gas inside the hollow rotating rod 502 can enter the airbag 2 through the hollow shaft 504, causing the airbag 2 to expand.

[0027] Among them, a plurality of telescopic water pipes 505 are equidistantly arranged around the outer side of the turntable 501. The telescopic water pipes 505 are arranged above the water storage tank 301 and communicated with the water storage tank 301. One end of the telescopic water pipe 505 away from the hollow rotating rod 502 is inserted into the interior of the water inlet hole 102. By setting the telescopic water pipe 505 and inserting one end of the telescopic water pipe 505 into the interior of the water inlet hole 102, it is convenient for lake water to be transported through the water inlet hole 102 and the telescopic water pipe 505 and enter into the interior of the water storage tank 301 to achieve the purpose of sampling; a piston rod 506 is elastically connected inside the telescopic water pipe 505 through a return spring. By setting the piston rod 506, the communication and disconnection between the telescopic water pipe 505 and the water storage tank 301 can be controlled through its movement, and the purpose of pumping water can be achieved, accelerating the entry of lake water into the interior of the water storage tank 301; one end of the piston rod 506 close to the turntable 501 penetrates through the inner wall of the telescopic water pipe 505 and is fixedly connected with a limiting plate 507. The limiting plate 507 is stuck on the surface of the turntable 501 to ensure that the piston rod 506 can be in a stable state when the turntable 501 rotates; a plurality of balls 5071 are rotatably installed on the opposite surfaces of the limiting plate 507. By setting the limiting plate 507, the friction between the limiting plate 507 and the turntable 501 can be reduced, and the service life of the turntable 501 and the limiting plate 507 can be extended; it should be noted that the number of components such as the detection head 101, the water inlet hole 102, and the water storage tank 301 for water quality detection and sampling can be spliced up and down according to the needs of fixed-point detection, that is, at different depth positions, to form water detection and sampling equipment at different depth water levels.

[0028] Combined with the attached Figure 1 - attached Figure 10 , it further includes a separation mechanism 6 for controlling the separation of the base 3 and the counterweight 4, so that after the sampling of a plurality of water storage tanks 301 is completed, the separation of the base 3 and the counterweight 4 can be controlled, enabling the outer shell 1 to move downward under the buoyancy of the inflated airbag 2, driving the detection device to float out of the water surface, achieving the purpose of reminding the staff that the sampling is completed and being able to be quickly recovered for analyzing the collected water samples; the separation mechanism 6 includes a round rod 601 inserted into the interior of the hollow rotating rod 502, and the upper end of the round rod 601 penetrates through the interior of the hollow shaft 504 and extends into the interior of the airbag 2, and the upper end of the round rod 601 is fixedly connected to the inner top surface of the airbag 2. By setting the round rod 601, when the interior of the water storage tank 301 is filled with water, the gas inside the water storage tank 301 can enter into the interior of the hollow rotating rod 502 through the interior of the through groove 302 by compressing the floating plate 3011 and the connecting spring 3012, and finally enter into the interior of the airbag 2 through the hollow shaft 504, enabling the airbag 2 to be inflated and expanded, and driving the round rod 601 to start moving upward; Among them, the lower end of the round rod 601 penetrates through the inside of the base 3 and extends into the inside of the notch 401. It is worth noting that a sealing gasket is provided at the position where the round rod 601 penetrates through the base 3 to prevent gas leakage and lake water from entering; two groups of elastically telescopic clamping blocks 602 are symmetrically installed inside the round rod 601, and the clamping blocks 602 are clamped and matched with the clamping grooves 402. By setting the clamping blocks 602, the counterweight 4 can be installed on the lower surface of the base 3 in the initial state; the lower end of the clamping block 602 is fixedly connected to the bottom surface of the notch 401 through a traction rope 603. By setting the traction rope 603, when the base 3 is separated from the counterweight 4 and the detection device floats to the water surface, it is ensured that the counterweight 4 and the base 3 are still in a connected state, so that the counterweight 4 can be recovered synchronously when the device is recovered; it is worth noting that the length of the traction rope 603 is set according to needs.

[0029] Specifically, when performing fixed-point monitoring of lake water, the detection device is reasonably spliced according to the position to be monitored. After splicing is completed, the detection device is placed in the water. Under the action of the gravity of the counterweight 4, the detection device will sink to the bottom of the water; when the power supply installed inside the housing 1 starts to supply power to the detection head 101 to start detecting the water quality, the waterproof motor will be energized synchronously, causing the waterproof motor to start rotating. The rotating waterproof motor will drive the hollow rotating rod 502 to start rotating synchronously through the hollow shaft 504. The rotating hollow rotating rod 502 will drive the turntable 501 to start rotating synchronously. As a result, a limiting plate 507 close to a set of inclined surfaces will move towards the center position of the housing 1 under the action of the return spring and contact the arc surface. During the movement of the limiting plate 507, the piston rod 506 will be driven to move synchronously, opening the communication port between the water storage tank 301 and the telescopic water pipe 505, allowing the external lake water to start entering the inside of the water storage tank 301 through the water inlet hole 102 and the telescopic water pipe 505. As the amount of water in the water storage tank 301 increases, the floating plate 3011 will be pushed down and the connecting spring 3012 will be compressed, causing the gas inside the water storage tank 301 to enter the inside of the through groove 302. Under the action of the one-way valve, the gas will only enter the inside of the hollow rotating rod 502 and be transported through the hollow shaft 504 into the inside of the airbag 2, causing the airbag 2 to start expanding; as the turntable 501 rotates, when the limiting plate 507 starts to contact the inclined surface, the limiting plate 507 will drive the piston rod 506 to start moving towards the direction of the water inlet hole 102 and stretch the return spring. When the piston rod 506 exceeds the communication port, the water storage tank 301 will be sealed to ensure that the water source inside the water storage tank 301 will not come into contact with the external water source, ensuring real-time sampling and facilitating the accuracy of subsequent detection results. With the completion of the sampling of multiple groups of water storage tanks 301, the gas inside the multiple groups of water storage tanks 301 will all enter the inside of the airbag 2, causing the airbag 2 to expand and drive the round rod 601 to move upward. Furthermore, it will drive the latch 602 to separate from the card slot 402 through the round rod 601, releasing the fixation of the counterweight 4, allowing the base 3 to separate from the counterweight 4, enabling the detection device to start moving upward and floating out of the water under the buoyancy force generated by the airbag 2 and start stretching the towing rope 603, so as to remind the staff that the water sample collection is completed and the sample can be recovered for analysis. At the same time, the counterweight 4 at the bottom of the water can be recovered through the towing rope 603 for the next use.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. The present invention relates to the technical field of water quality detection equipment, and specifically relates to an Internet of Things detection equipment capable of realizing fixed-point three-dimensional lake water quality detection, including a sampling mechanism capable of real-time sampling during the water quality detection process. The sampling mechanism includes a turntable arranged inside a housing. A hollow rotating rod is inserted inside the turntable. A mating groove is opened at the upper end of the hollow rotating rod, and a hollow shaft is inserted inside the mating groove. A plurality of groups of telescopic water pipes are equidistantly arranged around the outside of the turntable. A piston rod is elastically connected inside the telescopic water pipe through a return spring. One end of the piston rod close to the turntable penetrates through the inner wall of the telescopic water pipe and is fixedly connected to a limiting plate, and a plurality of groups of ball bearings are rotatably installed on the opposite surfaces of the limiting plate. Through the coordinated use of each component, the present invention can perform real-time sampling during the water quality detection process, so as to facilitate comparison with the detection results of the detection head during subsequent water quality analysis and ensure the accuracy of the results.

2. The Internet of Things detection device capable of realizing fixed-point three-dimensional lake water quality detection according to claim 1, characterized in that: A plurality of groups of water storage tanks (301) are equidistantly arranged around the upper surface of the base (3). A plurality of groups of through grooves (302) communicating with each other are opened inside the base (3). The through grooves (302) are communicated with the water storage tanks (301) through inserting rods installed at the lower ends of the water storage tanks (301).

3. The Internet of Things detection device capable of realizing fixed-point three-dimensional lake water quality detection according to claim 2, characterized in that: A floating plate (3011) is slidably fitted inside the water storage tank (301). The floating plate (3011) is elastically connected to the bottom surface of the water storage tank (301) through a connecting spring (3012) fixedly connected to the lower surface.

4. The Internet of Things detection device capable of realizing fixed-point three-dimensional lake water quality detection according to claim 1, characterized in that: A notch (401) is opened at the center position of the upper surface of the counterweight block (4). Two groups of clamping grooves (402) are symmetrically opened on the inner wall of the notch (401).

5. The Internet of Things detection device capable of realizing fixed-point three-dimensional lake water quality detection according to claim 1, characterized in that: The turntable (501) has a fan-shaped structure, and two inclined surfaces are opened on one side of the turntable (501), and an arc surface is formed for transition between the two inclined surfaces.

6. The Internet of Things detection device capable of realizing fixed-point three-dimensional lake water quality detection according to claim 2, wherein: The lower end of the hollow rotating rod (502) is rotatably connected to the upper surface of the base (3). The hollow rotating rod (502) is communicated with the through groove (302).

7. The Internet of Things detection device capable of realizing fixed-point three-dimensional lake water quality detection according to claim 1, characterized in that: A waterproof motor is fixedly connected to the upper end of the hollow shaft (504), and the waterproof motor is fixedly installed on the inner top surface of the housing (1).

8. The Internet of Things detection device capable of realizing fixed-point three-dimensional lake water quality detection according to claim 1, characterized in that: The telescopic water pipe (505) is arranged above the water storage tank (301) and is communicated with the water storage tank (301). One end of the telescopic water pipe (505) far from the hollow rotating rod (502) is inserted into the water inlet hole (102).

9. The Internet of Things detection device capable of achieving fixed-point three-dimensional lake water quality detection according to claim 1, characterized in that: It further includes a separation mechanism (6) for controlling the separation of the base (3) from the counterweight (4). The separation mechanism (6) includes a round rod (601) inserted into the interior of the hollow rotating rod (502). The upper end of the round rod (601) passes through the interior of the hollow shaft (504) and extends into the interior of the airbag (2). Moreover, the upper end of the round rod (601) is fixedly connected to the inner top surface of the airbag (2). The lower end of the round rod (601) passes through the interior of the base (3) and extends into the notch (401). Two groups of elastically telescopic clamping blocks (602) are symmetrically installed inside the round rod (601), and the clamping blocks (602) are in clamping fit with the card slots (402). The lower ends of the clamping blocks (602) are fixedly connected to the bottom surface of the notch (401) through traction ropes (603).

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