A floating monitoring station for water quality detection

Abstract

This invention relates to the field of float monitoring station technology, specifically disclosing a float monitoring station for water quality testing, comprising: a buoy structure, a propulsion device, and a sampling device. The buoy structure is capable of floating on the water surface; the propulsion device is disposed on the top surface of the buoy structure near the center; two sets of sampling devices are symmetrically arranged at the output end of the propulsion device, and the two sampling devices can move up and down under the limitation of the propulsion device. The two sampling devices can sample the shallow and deep water of the target water area respectively. The propulsion device and the sampling devices cooperate with each other to improve the detection quality and accuracy after water quality sampling. In summary, this invention achieves efficient and accurate sampling of different water layers through the layered layout of dual sampling devices, precise positioning of high-precision drive components, and synergistic design of sampling end rotational motion mixing, combining the representativeness of sampling data with the stability of equipment operation, thereby providing high-quality and high-precision test water for subsequent detection.

Description

Technical Field

[0001] This invention relates to the field of float monitoring station technology, specifically a float monitoring station for water quality testing. Background Technology

[0002] Water resources, as a core component of the ecological environment, directly affect ecological balance, industrial and agricultural production, and human health. Therefore, routine and high-precision water quality monitoring of rivers, lakes, reservoirs, and other water bodies is of significant practical importance. Floating monitoring stations, with their advantages of requiring no fixed shoreline support and being flexibly deployed in target water areas, have become one of the mainstream devices for real-time water quality monitoring, enabling continuous collection and analysis of key indicators such as pH, dissolved oxygen, and pollutant concentrations.

[0003] However, existing float-based water quality monitoring stations still have many technical shortcomings in practical applications, limiting the accuracy of monitoring data and sampling efficiency:

[0004] Traditional float-based monitoring stations typically employ a single sampling device, capable of collecting data only from a fixed water layer. Obtaining water quality data from both shallow and deep water areas requires repeatedly raising and lowering the sampling device, which is not only cumbersome and inefficient but also prone to causing water sample mixing due to repeated device movement. This results in a failure to accurately reflect the vertical water quality distribution differences in the target area, thus affecting the representativeness of the monitoring data.

[0005] Existing monitoring stations mostly use ordinary motors with lead screws or ropes for drive components, lacking high-precision limiting and guiding structures. In complex aquatic environments such as water flow impact and wave disturbance, the lifting stroke of the sampling device is prone to deviation, resulting in inconsistencies between the actual sampling depth and the preset depth. Furthermore, it is difficult to maintain stable positioning when stationary, further reducing the comparability of sampling data from different batches.

[0006] Water bodies naturally exhibit stratification, with differences in temperature, solute concentration, and suspended solids distribution between shallow and deep water layers. Furthermore, localized areas may experience uneven concentrations due to pollutant settling and biological activity. Existing sampling devices are mostly direct suction-type collection devices without sample mixing mechanisms, which can easily collect locally abnormal samples, resulting in test results that fail to reflect the overall water quality of that layer. Summary of the Invention

[0007] The purpose of this invention is to provide a float monitoring station for water quality testing to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: comprising a buoy structure, a propulsion device, and a sampling device. The buoy structure is capable of floating on the water surface. The propulsion device is disposed on the top surface of the buoy structure near the center. Two sets of sampling devices are symmetrically disposed at the output end of the propulsion device. The two sampling devices can move up and down under the control of the propulsion device. The two sampling devices can sample the shallow and deep water of the target water area respectively. The propulsion device and the sampling device cooperate with each other to improve the detection quality and accuracy of water quality after sampling.

[0009] Preferably, in order to support the propulsion device and the sampling device, the buoy structure includes: an airbag-type floating platform frame, a support platform, and a rectangular groove. The airbag-type floating platform frame is used to float on the water surface to support the top surface connecting components. The support platform is disposed on the top surface of the airbag-type floating platform frame, and a rectangular groove that runs vertically through the center of the top surface of the support platform is provided.

[0010] Preferably, the buoy structure further includes: navigation lights, wherein there are several navigation lights, which are respectively arranged around the airbag-type floating platform frame.

[0011] Preferably, to limit the movement of the baffle, the pushing device includes: an L-shaped support plate, a first driving assembly, a transmission block, a movable rod, and a baffle. The L-shaped support plate is disposed on the left end of the top surface of the bearing platform near the center; the first driving assembly is disposed on the center of the inner wall top surface of the L-shaped support plate, and the bottom surface of the first driving assembly is connected and fixed to the top surface of the L-shaped support plate; the transmission block is disposed on the movable end of the first driving assembly; the movable rod is disposed on the right end of the bottom surface of the transmission block; and the baffle is disposed on the bottom end of the movable rod.

[0012] Preferably, to drive the two sampling devices to move in a limited position, the first driving assembly includes: a brake motor, a ball screw, a connecting plate, a ball nut, a limiting block, and a limiting concave plate. The brake motor is located at the center of the top surface of the inner wall of the L-shaped support plate; the ball screw is located at the output end of the brake motor; there are two connecting plates, which are symmetrically sleeved on both ends of the two ball screws via two bearings, and the bottom surface of the bottom connecting plate is connected and fixed to the top surface of the bearing platform; the ball nut is sleeved on the top end of the ball screw, and the ball nut and the ball screw mesh with each other. One side of the outer wall is connected and fixed to the left end of the transmission block; there are two limiting blocks, which are respectively set at both ends of the outer wall of the ball nut's circular diameter; there are two limiting concave plates, which are symmetrically set at both ends between the two connecting plates, and two limiting blocks are embedded in each of the two limiting concave plates, and the two limiting blocks can move along the inner wall of the two limiting concave plates; the brake motor can drive the ball screw to rotate and drive the ball nut to move, and the ball nut is limited by the two limiting blocks and the two limiting concave plates, so that the ball nut drives the transmission block, the moving rod and the baffle to move in a limited position.

[0013] Preferably, to enable the automatic water sampler to perform sampling, the sampling device includes: a rectangular block, a chamber, a movable circular groove, a second drive assembly, an automatic water sampler, and a pressure sensor. The rectangular block is disposed on one side of the outer wall of the baffle, and a chamber is formed inside the rectangular block. A through movable circular groove is formed at the center of the right side of the outer wall of the rectangular block, and the movable circular groove extends into the rectangular block. The second drive assembly is disposed at the center of the left side of the inner wall of the chamber, and the output end of the second drive assembly is embedded in the movable circular groove. The automatic water sampler is disposed at the output end of the second drive assembly. The pressure sensor is embedded in the center of the top surface of the automatic water sampler, and the pressure sensor is electrically connected to the automatic water sampler.

[0014] Preferably, in order to drive the automatic water sampler to rotate and move, the second driving assembly includes: a rotating shaft, an electric push rod, a waterproof sealing ring, a waterproof isolation plate, a moving rod, a spiral groove, and a driving pin. The rotating shaft is located at the center of the left side of the inner wall of the chamber; the electric push rod is located at the right end of the rotating shaft via a rotating block; the waterproof sealing ring is sleeved on the outer wall of the pushing end of the electric push rod; the waterproof isolation plate is sleeved on the outer ring of the waterproof sealing ring, and the four sides of the outer wall of the waterproof isolation plate are fixedly connected to the four sides of the inner wall of the chamber, respectively; the output end of the electric push rod can move within the waterproof sealing ring.

[0015] A movable rod is located at the pushing end of the electric push rod. A spiral groove is formed on the outer wall of the movable rod, and the right end of the movable rod is connected and fixed to the outer wall of the automatic water sampler. A drive pin is located at the center of the right end of the top surface of the inner wall of the chamber, and the bottom end of the drive pin is embedded in one end of the spiral groove. The electric push rod pushes the movable rod to move, causing the movable rod to rotate through the spiral groove and the drive pin. At the same time, the electric push rod rotates through the rotating shaft to counteract the rotational force, thereby driving the automatic water sampler to rotate and move.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By configuring two symmetrically distributed sampling devices, and relying on the drive of the propulsion device, the two sampling devices can be driven to sink to the designated shallow and deep water areas respectively, so that water samples from different water layers can be collected with one station deployment. This avoids the defects of low sampling efficiency and water sample disturbance caused by repeated raising and lowering of traditional single sampling devices, and ensures that the water quality test data can truly reflect the vertical water quality distribution of the target water area.

[0018] 2. The first drive component in the propulsion device adopts a transmission structure with a brake motor, ball screw, limit block and concave plate guide. The self-locking capability of the brake motor enables the sampling device to be fixed after reaching the designated water body for sampling and to perform water sampling. The high-precision transmission characteristics of the ball screw, combined with the rigid limiting and guiding effect of the limit block and the limiting concave plate, can strictly control the lifting stroke of the sampling device, ensuring that the depth deviation of each sampling is minimal and greatly improving the accuracy of sampling.

[0019] 3. The second drive component inside the sampling device, through the structural design of electric push rod, spiral groove, drive pin and rotating shaft, can drive the automatic water sampler to rotate linearly. Before sampling, it can accurately mix the local water area in a small area, breaking the problems of water stratification, suspended solids sedimentation and uneven solute concentration, and avoiding the collection of local abnormal water samples. At the same time, the rotating shaft can counteract the reaction force generated by the rotation of the moving rod, avoid damage to the electric push rod by torsional force, and ensure the stable operation of the component. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the buoy structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the buoy structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the position and structure of the pushing device of the present invention;

[0024] Figure 5 for Figure 4Enlarged view of point A in the image;

[0025] Figure 6 This is a schematic diagram of the top split structure of the pushing device of the present invention;

[0026] Figure 7 for Figure 4 Enlarged view of point B in the image;

[0027] Figure 8 This is a schematic diagram of the bottom split structure of the pushing device of the present invention;

[0028] Figure 9 This is a schematic diagram of the position and structure of the sampling device of the present invention;

[0029] Figure 10 for Figure 9 Enlarged view of point C in the image;

[0030] Figure 11 This is a schematic diagram of the rectangular block cross-sectional structure of the sampling device of the present invention;

[0031] Figure 12 This is a schematic diagram of the second driving component structure within the cross-section of the rectangular block of the present invention;

[0032] Figure 13 This is a schematic diagram of the split structure of the second driving component of the present invention;

[0033] In the diagram: 1. Buoy structure; 11. Airbag-type floating platform frame; 12. Bearing platform; 13. Rectangular groove; 14. Navigation light; 2. Propulsion device; 21. L-shaped support plate; 22. First drive assembly; 221. Brake motor; 222. Ball screw; 223. Connecting plate; 224. Ball nut; 225. Limiting block; 226. Limiting concave plate; 23. Transmission block; 24. Moving round rod; 25. Baffle; 3. Sampling device; 31. Rectangular block; 32. Chamber; 33. Moving round groove; 34. Second drive assembly; 341. Rotating shaft; 342. Electric push rod; 343. Waterproof sealing ring; 344. Waterproof isolation plate; 345. Moving rod; 346. Spiral groove; 347. Drive pin; 35. Automatic water sampler; 36. Pressure sensor. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-13This invention provides a technical solution for a floating monitoring station for water quality testing, comprising: a buoy structure 1, a propulsion device 2, and a sampling device 3. The buoy structure 1 can float on the water surface and also provides support for the propulsion device 2 and the sampling device 3. The propulsion device 2 is located on the top surface of the buoy structure 1 near the center and can drive the sampling device 3 to complete high-precision and high-quality sampling. There are two sets of sampling devices 3, symmetrically arranged at the output end of the propulsion device 2. The two sampling devices 3 can move up and down by the propulsion device 2. The two sampling devices 3 can sample the shallow and deep water of the target water area respectively. The propulsion device 2 and the sampling device 3 work together to improve the detection quality and accuracy after water quality sampling.

[0036] As a preferred option, further, such as Figure 2 and Figure 3 As shown, the buoy structure 1 includes: an airbag-type floating platform frame 11, a support platform 12, a rectangular groove 13, and navigation lights 14. The airbag-type floating platform frame 11 floats on the water surface to support the top surface connecting components, and the airbag-type floating platform frame 11 and the support platform 12 provide support. The support platform 12 is located on the top surface of the airbag-type floating platform frame 11, and a rectangular groove 13 is formed at the center of the top surface of the support platform 12, which provides operating space for two sampling devices 3. There are several navigation lights 14, which are respectively set around the airbag-type floating platform frame 11. The navigation lights 14 can be powered by batteries or solar energy, and can also be equipped with light sensors or time relays to set the opening and closing time of the navigation lights 14. The navigation lights 14 are used to indicate the location of the water quality monitoring buoy station and to remind ships to avoid collisions.

[0037] As a preferred option, further, such as Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the pushing device 2 includes: an L-shaped support plate 21, a first driving assembly 22, a transmission block 23, a movable rod 24, and a baffle 25. The L-shaped support plate 21 is located on the left side of the top surface of the bearing platform 12 near the center, providing support and mounting points for the brake motor 221. The first driving assembly 22 is located at the center of the inner wall of the L-shaped support plate 21, and the bottom surface of the first driving assembly 22 is connected and fixed to the top surface of the L-shaped support plate 21. The transmission block 23 is located at the moving end of the first driving assembly 22. The movable rod 24 is located at the right end of the bottom surface of the transmission block 23. The transmission block 23, the movable rod 24, and the baffle 25 are used for the transmission connection between the output end of the first driving assembly 22 and the two sampling devices 3. The baffle 25 is located at the bottom end of the movable rod 24, and the baffle 25 allows for a certain distance between the two sampling devices 3, thus providing operating space for the output ends of the two sampling devices 3 and preventing them from colliding with each other during operation.

[0038] As a preferred option, further, such as Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the first drive assembly 22 includes: a brake motor 221, a ball screw 222, a connecting plate 223, a ball nut 224, a limiting block 225, and a limiting concave plate 226. The brake motor 221 is located at the center of the top surface of the inner wall of the L-shaped support plate 21. The brake motor 221 has a certain self-locking capability, which ensures that the output end connection assembly will not loosen or shift due to external force when stationary. The ball screw 222 is located at the output end of the brake motor 221. The ball screw 222 can be limited to rotate by two bearings; there are two connecting plates 223, which are symmetrically sleeved on both ends of the two ball screws 222 by two bearings respectively, and the bottom surface of the bottom connecting plate 223 is connected and fixed to the top surface of the bearing platform 12; the ball nut 224 is sleeved on the top end of the ball screw 222, and the ball nut 224 and the ball screw 222 mesh with each other, and one side of the outer wall of the ball nut 224 is connected and fixed to the left end of the transmission block 23; the number of limiting blocks 225 is... There are two limiting concave plates 226, respectively located at both ends of the outer wall of the circular diameter of the ball nut 224; there are two limiting concave plates 226, symmetrically arranged at both ends between the two connecting plates 223, with two limiting blocks 225 embedded in each of the two limiting concave plates 226, and the two limiting blocks 225 can move along the inner wall of the two limiting concave plates 226; the brake motor 221 can drive the ball screw 222 to rotate, thereby moving the ball nut 224, and the ball nut 224 passes through two... The limiting block 225 and the two limiting concave plates 226 limit the movement of the ball nut 224, which in turn drives the transmission block 23, the moving rod 24 and the baffle 25 to move in a limited position. The first drive assembly 22 relies on the self-locking of the brake motor 221, the transmission of the ball screw 222 and the limiting block 225 to realize the high-precision and offset-free underwater lifting drive of the sampling device 3. It has both smooth movement and reliable static positioning, accurately controls the sampling depth and avoids positional deviation caused by water flow disturbance, thereby improving the accuracy of water sample collection.

[0039] As a preferred option, further, such as Figure 9 , Figure 10 , Figure 11 and Figure 12As shown, the sampling device 3 includes: a rectangular block 31, a chamber 32, a movable circular groove 33, a second drive assembly 34, an automatic water quality sampler 35, and a pressure sensor 36. The rectangular block 31 is disposed on one side of the outer wall of the baffle 25. The chamber 32 is formed inside the rectangular block 31, providing installation space for the second drive assembly 34. A through movable circular groove 33 is formed at the center of the right side of the outer wall of the rectangular block 31, and the movable circular groove 33 extends into the rectangular block 31. The second drive assembly 34 is disposed on the left side of the inner wall of the chamber 32. At the center, the output end of the second drive component 34 is embedded in the movable circular groove 33; the automatic water sampler 35 is set at the output end of the second drive component 34, and the automatic water sampler 35 can sample the target water body by opening and closing; the pressure sensor 36 is embedded in the center of the top surface of the automatic water sampler 35, and the pressure sensor 36 is electrically connected to the automatic water sampler 35. When the pressure sensor 36 senses the specified water pressure, the pressure sensor 36 serves as the driving source signal for the automatic water sampler 35 to open and close for sampling.

[0040] As a preferred option, further, such as Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, the second drive assembly 34 includes: a rotating shaft 341, an electric push rod 342, a waterproof sealing ring 343, a waterproof isolation plate 344, a moving rod 345, a spiral groove 346, and a drive pin 347. The rotating shaft 341 is located at the center of the left side of the inner wall of the chamber 32. The rotating shaft 341 is used to counteract the rotational force exerted on the electric push rod 342 by the rotational movement of the moving rod 345. The electric push rod 342 is located at the right end of the rotating shaft 341 via a rotating block. The electric push rod 342 can drive the moving rod 345 to rotate and move. 42 has a certain self-locking capability; the waterproof sealing ring 343 is sleeved on the outer wall of the pushing end of the electric push rod 342. The combination of the waterproof sealing ring 343 and the waterproof isolation plate 344 can form a seal inside the left end of the chamber 32, preventing water from entering the chamber 32 containing the electric push rod 342; the waterproof isolation plate 344 is sleeved on the outer ring of the waterproof sealing ring 343, and the four sides of the outer wall of the waterproof isolation plate 344 are fixedly connected to the four sides of the inner wall of the chamber 32 respectively. The waterproof isolation plate 344 has a separation and partition function inside the chamber 32. The output end can be limited to move within the waterproof sealing ring 343; the moving rod 345 is set at the pushing end of the electric push rod 342, and the outer wall of the moving rod 345 is provided with a spiral groove 346. The right end of the moving rod 345 is connected and fixed to the outer wall of the automatic water sampler 35; the driving pin 347 is set at the center of the right end of the top surface of the inner wall of the chamber 32, and the bottom end of the driving pin 347 is embedded in one end of the spiral groove 346; the electric push rod 342 pushes the moving rod 345 to move, so that the moving rod 345 rotates through the spiral groove 346 and the driving pin 347. The automatic water sampler 35 is moved while the electric push rod 342 rotates through the rotating shaft 341 to counteract the rotational force, thereby driving the automatic water sampler 35 to rotate and move. The second drive assembly 34 is driven by the electric push rod 342, and the spiral groove 346 and drive pin 347 cooperate to realize the rotational movement of the automatic water sampler 35. It has both waterproof sealing protection and power self-locking positioning, and simultaneously completes water mixing and accurate sampling. Moreover, the rotating shaft counteracts the reaction force to ensure the stable operation of the assembly. The second drive assembly 34 is suitable for sampling and detection of the automatic water sampler 35.

[0041] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, and the specific work is as follows:

[0042] The device is placed in the test area. The brake motor 221 drives the ball nut 224 to move downwards. The ball nut 224 drives the two sampling devices 3 to enter the water via the transmission block 23, the moving rod 24, and the baffle 25. When the brake motor 221 drives the two sampling devices 3 to enter the shallow water layer, the pressure sensor 36 in one of the sampling devices 3 reaches the specified water pressure. The pressure sensor 36 serves as the power source signal for the automatic water sampler 35 to start opening and closing for sampling. At the same time, the electric push rod 342 drives the automatic water sampler 35 to rotate and move to start sampling. It can accurately mix the water in the sampling area in a small range, and complete the mixing and sampling simultaneously, improving the representativeness of the water sample and the quality of water quality testing. After the automatic water sampler 35 finishes sampling, it is reset by the electric push rod 342 to complete the sampling of the shallow water in the test area.

[0043] Furthermore, the deep water body of the water body is detected. Similarly, the other sampling device 3 for deep water body sampling is driven by the brake motor 221 to the deep water body. Similarly, the pressure sensor 36 in the other sampling device 3 serves as the opening and closing signal of the automatic water quality sampler 35, and works with the electric push rod 342 to complete the sampling of the deep water body. Then, the electric push rod 342 is used to reset the sampler.

[0044] Once the shallow and deep water samples from the target water area are collected, the two sampling devices 3 are reset by driving the brake motor 221, and the water quality can then be tested by the staff.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A float monitoring station for water quality testing, characterized in that, include: The buoy structure (1) is capable of floating on the water surface; The propulsion device (2) is located on the top surface of the buoy structure (1) near the center; Two sets of sampling devices (3) are symmetrically arranged at the output end of the pushing device (2). The two sampling devices (3) can move up and down by the pushing device (2). The two sampling devices (3) can sample the shallow and deep water of the target water area respectively. The pushing device (2) and the sampling device (3) cooperate with each other to improve the detection quality and accuracy after water quality sampling. The buoy structure (1) includes: Airbag-type floating platform frame (11) is used to float on the water surface to support the top surface connecting components; The support platform (12) is located on the top surface of the airbag-type floating platform frame (11), and a rectangular groove (13) that runs vertically through the center of the top surface of the support platform (12). The pushing device (2) includes: An L-shaped support plate (21) is disposed on the top left end of the bearing platform (12) near the center; The first driving component (22) is disposed at the center of the top surface of the inner wall of the L-shaped support plate (21), and the bottom surface of the first driving component (22) is connected and fixed to the top surface of the L-shaped support plate (21); The transmission block (23) is disposed at the moving end of the first drive component (22); The movable round rod (24) is located at the right end of the bottom surface of the transmission block (23); A baffle (25) is provided at the bottom end of the movable round rod (24); The sampling device (3) includes: A rectangular block (31) is disposed on one side of the outer wall of the baffle (25). A cavity (32) is provided inside the rectangular block (31). A through movable circular groove (33) is provided at the center of the right side of the outer wall of the rectangular block (31), and the movable circular groove (33) extends into the rectangular block (31). The second drive assembly (34) is disposed at the center of the left side of the inner wall of the chamber (32), and the output end of the second drive assembly (34) is embedded in the movable circular groove (33); An automatic water sampler (35) is located at the output end of the second drive assembly (34); A pressure sensor (36) is embedded in the center of the top surface of the automatic water sampler (35), and the pressure sensor (36) is electrically connected to the automatic water sampler (35). The second driving component (34) includes: A rotating shaft (341) is located at the center of the left side of the inner wall of the chamber (32); An electric push rod (342) is mounted on the right end of the rotating shaft (341) via a rotating block; A waterproof sealing ring (343) is fitted onto the outer wall of the push end of the electric push rod (342); A waterproof isolation plate (344) is fitted onto the outer ring of the waterproof sealing ring (343). The four sides of the outer wall of the waterproof isolation plate (344) are fixedly connected to the four sides of the inner wall of the chamber (32). The output end of the electric push rod (342) can move within the waterproof sealing ring (343). A movable rod (345) is provided at the pushing end of the electric push rod (342). A spiral groove (346) is provided on the outer wall of the movable rod (345). The right end of the movable rod (345) is connected and fixed to the outer wall of the automatic water sampler (35). A drive pin (347) is located at the center of the right end of the top surface of the inner wall of the chamber (32), and the bottom end of the drive pin (347) is embedded in one end of the spiral groove (346).

2. The float monitoring station for water quality testing according to claim 1, characterized in that: The buoy structure (1) also includes: several navigation lights (14), which are respectively set around the airbag-type floating platform frame (11).

3. A float monitoring station for water quality testing according to claim 2, characterized in that: The first driving component (22) includes: A brake motor (221) is located at the center of the top surface of the inner wall of the L-shaped support plate (21); A ball screw (222) is disposed at the output end of the brake motor (221); There are two connecting plates (223), which are symmetrically sleeved on the two ends of the two ball screws (222) through two bearings respectively. The bottom surface of the bottom connecting plate (223) is connected and fixed to the top surface of the bearing platform (12). A ball nut (224) is fitted onto the top of the ball screw (222), and the ball nut (224) and the ball screw (222) mesh with each other. One side of the outer wall of the ball nut (224) is connected and fixed to the left end of the transmission block (23). Two limiting blocks (225) are respectively set at both ends of the outer wall of the circular diameter of the ball nut (224); There are two limiting concave plates (226), which are symmetrically arranged at both ends between the two connecting plates (223). Two limiting blocks (225) are embedded in each of the two limiting concave plates (226), and the two limiting blocks (225) can move along the inner wall of the two limiting concave plates (226).

Images