Water environment monitoring data collection device and method of use thereof

Abstract

The application belongs to the technical field of water environment monitoring, and particularly relates to a water environment monitoring data acquisition device and a use method thereof. The device comprises a ship body capable of remote control navigation. A rolling bin is arranged in the middle of the ship body. The inner bottom wall of the rolling bin is communicated with the lower surface of the ship body through a through hole. Hollow rolling cylinders are arranged on the inner walls of the two sides of the rolling bin through bearings. The rolling cylinders are driven by power motors. The water environment monitoring data acquisition device and the use method thereof can realize stereoscopic sampling from the wide surface of the water environment to a fixed depth according to the actual water environment area. The device is combined with the existing remote control ship technology, and the potential safety hazards and low efficiency caused by manual sampling are avoided. The device can realize the effect of collecting water samples of various water environments with different depths, and can switch and deform the shape of the collecting hose as needed, so that the water samples of the specified water area and the specified depth can be better collected.

Description

Technical Field

[0001] This invention relates to the field of water environment monitoring technology, and in particular to a water environment monitoring data acquisition device and its usage method. Background Technology

[0002] Water environment monitoring is a comprehensive analysis of pollutants and their related components in a water environment using physical, chemical, and biological techniques. This analysis aims to explore and study the changing patterns of water quality. Water environment monitoring provides reliable basic data for water environment management and a scientific basis for evaluating the effectiveness of treatment measures. To ensure that monitoring data accurately reflects the current state of water quality and predicts the development trend of water pollution, water environment monitoring data must be representative, accurate, precise, parallel, repeatable, complete, and comparable.

[0003] In current technologies, water environment monitoring data collection mostly involves manual water sampling followed by data collection and testing. Even for large bodies of water, samples are collected manually by boat. While this sampling method is acceptable for small areas, it becomes very inefficient for large areas. Furthermore, water sampling requires consideration of both the width and depth of the water surface for comprehensive monitoring. Current technologies also rely on manual operation, which is not only inefficient but also prone to errors in depth measurement in flowing water, as the force of the current can cause the depth gauge to deviate from its vertical position. Summary of the Invention

[0004] To address the technical challenges of existing methods for manually collecting water samples by boat, this invention proposes a water environment monitoring data acquisition device and its usage method.

[0005] The present invention proposes a water environment monitoring data acquisition device, which includes a hull that can be remotely controlled and navigated. A winding chamber is provided in the middle of the hull, and the middle of the inner bottom wall of the winding chamber is connected to the lower surface of the hull through a through hole.

[0006] Hollow take-up rollers are mounted on the inner walls of both sides of the take-up bin via bearings, and the take-up rollers are driven by a power motor.

[0007] The surface of the take-up roller is wound with a collection mechanism, which includes a collection hose. The water sample is drawn into the take-up roller through the collection hose and then pumped out from the axis of the take-up roller to achieve the sampling action.

[0008] The bottom of the collection hose is also equipped with a buoyancy mechanism for controlling the collection depth at the bottom of the collection hose.

[0009] The outer surface of the collection hose is also fitted with a state switching mechanism that can switch the collection hose between straight and curved states.

[0010] Preferably, the collection mechanism further includes a self-priming pump fixedly installed on the inner wall of the take-up roller. An annular groove is formed on the outer surface of the roller shaft at the center of the take-up roller. A sealing ring is rotatably sleeved on the inner wall of the annular groove through a bearing. The water outlet of the self-priming pump extends through a pipe to the inside of the sealing ring and communicates with the annular groove.

[0011] The inner bottom wall of the annular groove is provided with a liquid outlet hole along the diameter of the roller shaft towards the center line. A drain hole communicating with the outside is also provided at the center line of the roller shaft. After the multiple liquid outlet holes are connected to the drain hole, the water sample is pumped from the pipe into the annular groove by the self-priming pump, and finally discharged into the drain hole through the liquid outlet hole to one end of the roller shaft.

[0012] The above technical solution allows water samples to be collected through a collection hose and then uniformly drawn into the hull. Due to the use of electrical components, it can be combined with existing remote control technology to achieve remote control effects.

[0013] Preferably, a guide tube is rotatably connected to one end of the roller shaft via a bearing, through which the water sample is introduced into the water sample tube.

[0014] The above technical solution allows the collected water sample to be directly connected to the water sample tube to complete the water sample collection process.

[0015] Preferably, one end face of the take-up roller is further provided with a movable electrical connection mechanism, the movable electrical connection mechanism including a ceramic ring that is rotatably sleeved on one end face of the take-up roller, an electrode ring fixedly installed on the inner surface of the ceramic ring, and a metal spring plate fixedly installed on the surface of the take-up roller near the electrode ring. After the metal spring plate rotates into contact with the surface of the electrode ring, the power supply of the self-priming pump is realized.

[0016] The above technical solution enables the use of existing technology based on the principle of motor brush power supply to provide continuous power to rotating electrical appliances.

[0017] Preferably, the buoyancy mechanism includes an airbag ball fixed to the bottom of the collection hose. The top of the airbag ball is connected to an electric cylinder fixed in the take-up roller through an air pressure pipe to realize the action of inflation and deflation, so as to use air pressure to control the buoyancy depth of the airbag ball.

[0018] The above technical solution allows for the inflation and deflation of the airbag according to actual conditions. When inflated, the airbag will float upwards as the air pressure increases and the buoyancy increases, carrying the collection hose to float to the designated depth for water sample collection. Conversely, after the air is removed, the airbag will sink to the designated depth under the weight of the collection hose for sampling.

[0019] Preferably, a horn sleeve is provided at the point where the collection hose penetrates the hull to measure the tilt angle and circumferential rotation angle of the collection hose.

[0020] The horn sleeve consists of two sleeves hinged together on opposite sides. A depression angle sensor for measuring the depression angle of the collection hose is provided at the hinge. The top sleeve is rotatably mounted to the hull via a bearing to achieve horizontal rotation. A horizontal angle sensor for measuring the horizontal angle of the collection hose is provided on the surface of the horizontally rotating sleeve. After the collection hose passes through the horn sleeve, the depression angle sensor and the horizontal angle sensor measure the angle of the collection hose.

[0021] The above technical solution enables the measurement of the main angles of the collection hose using both a downward angle sensor and a horizontal angle sensor, thereby allowing for the accurate calculation of the depth and location information of the water area where the collection hose is located.

[0022] Preferably, the collection tube penetrates the airbag bulb and connects with the water environment to collect water samples, and a filter screen is also provided at the bottom of the collection tube.

[0023] The above technical solution effectively prevents the collection hose from becoming clogged.

[0024] Preferably, the state switching mechanism includes a straight sleeve fitted onto the outer surface of the collection hose, and adjacent straight sleeves are hinged together by a hinge shaft to form a chain or are elastically inserted together to form a straight line.

[0025] The surface of the linear sleeve is provided with a sliding groove in the shape of a closed ring. When the hinge shaft slides on the inner walls at both ends of the sliding groove, it realizes the action of hinged connection and elastic insertion.

[0026] The above technical solution ensures that two adjacent straight sleeves can always be connected together.

[0027] Preferably, the linear sleeve has an elastic hole in the same direction as the sliding groove, and the inner wall of the elastic hole is provided with a spring that pops the bottom of the linear sleeve downward. The two ends of the spring are fixedly connected to the inner top wall of the elastic hole and the top of the hinge shaft, respectively, and the elastic force of the multiple springs gradually increases from bottom to top.

[0028] A steel wire rope is fixedly connected to the top of the hinge shaft located inside the spring. The top of the steel wire rope is fixed to the inner top wall of the elastic hole. The topmost steel wire rope passes through the interior of the winding roller. A drum equipped with a winding motor is fixedly installed on the inner wall of the winding roller. One end of the steel wire rope located inside the winding roller is fixed to the surface of the drum to realize the winding action. The winding motor is powered by the movable electrical connection mechanism.

[0029] The above technical solution can achieve precise control over the shape of the collection hose by using the combination of springs and steel wire ropes.

[0030] A method for using a water environment monitoring data acquisition device includes step one: determining the location; after controlling the hull to sail to the designated water area, the power motor is rotated in the reverse direction, driving the roller shaft to release the linear sleeve on the winding roller in the reverse direction. The linear sleeve is released from the horn sleeve into the water area. If the water in the water area is flowing water, the airbag at the bottom of the acquisition hose will move downstream with the water flow and form an angle. At this time, the acquisition hose drives the horn sleeve to rotate. The downward angle sensor detects and senses the angle of rotation, and at the same time, the horizontal angle sensor detects and senses the horizontal angle of the airbag. At this time, the current position of the airbag in the water area can be calculated by the length released by the linear sleeve and the angles detected and sensed by the downward angle sensor and the horizontal angle sensor.

[0031] Step 2: Collect water samples; Start the winding motor. Electrical energy is transmitted to the winding motor through the rotating contact between the electrode ring on the non-rotating ceramic ring and the metal spring plate.

[0032] After impurities are filtered out by the filter screen at the airbag bulb, the water sample is drawn in from the bottom of the collection hose, pumped through the fitting to the outlet hole, and then collected along the drain hole to the guide tube. At the same time, the roller can also rotate, and the sealing ring is positioned by the fitting and does not rotate, thus completing the water sample collection.

[0033] Step 3, Depth Adjustment: After the electric cylinder receives power from the metal spring plate, it sucks out or pushes in the airbag through the air pressure tube. When the airbag is sucked out, it deflates and the collection tube sinks under its own weight. Conversely, the collection tube floats up. After the adjustment is completed, the sample is taken.

[0034] Step 4: Deformation; Control the forward rotation of the winding motor to start, the winding motor pulls the wire rope upwards to tighten it, starting from the bottom straight sleeve, sliding into the bottom of the second to last straight sleeve, the hinge shaft slides upwards along the sliding groove to the top, at the same time, the spring is compressed, then the second to last straight sleeve is also inserted into the third to last straight sleeve, the spring is compressed, thus completing the switching of the sampling hose from a soft shape to a straight shape, and then sampling can be performed. Conversely, reversing the winding motor causes the wire rope to loosen, and under the elastic force of the spring, the two adjacent straight sleeves disengage and re-hinge with each other.

[0035] The beneficial effects of this invention are as follows:

[0036] 1. By setting up a collection mechanism, it is possible to carry out three-dimensional sampling from a wide surface to a certain depth of the water environment according to the actual area. In addition, with the existing remote-controlled boat technology, there is no need for the potential safety hazards and low efficiency problems caused by manual sampling.

[0037] 2. By setting up a floating mechanism, it is possible to collect water samples from various water environments at different depths.

[0038] 3. By setting a state switching mechanism, the shape of the collection hose can be switched and deformed as necessary to better collect water samples from a specified depth in a specified water area. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of a water environment monitoring data acquisition device and its usage method proposed in this invention;

[0040] Figure 2 A three-dimensional view of a linear sleeve switching method for a water environment monitoring data acquisition device and its usage method proposed in this invention.

[0041] Figure 3 This is a cross-sectional view of the winding roller of a water environment monitoring data acquisition device and its usage method proposed in this invention;

[0042] Figure 4 This is a front sectional view of the data acquisition mechanism of a water environment monitoring data acquisition device and its usage method proposed in this invention;

[0043] Figure 5 This is a front sectional view of the active electrical connection mechanism of a water environment monitoring data acquisition device and its usage method proposed in this invention;

[0044] Figure 6 This is a front sectional view of the state switching mechanism of a water environment monitoring data acquisition device and its usage method proposed in this invention;

[0045] Figure 7This is a cross-sectional view of the inflated and floating airbag of a water environment monitoring data acquisition device and its usage method proposed in this invention.

[0046] Figure 8 This is a cross-sectional view of the inflatable balloon of a water environment monitoring data acquisition device and its usage method proposed in this invention, showing its submersion.

[0047] Figure 9 This is a three-dimensional view of a linear sleeve with a linear insertion connection for a water environment monitoring data acquisition device and its usage method proposed in this invention.

[0048] Figure 10 This is a perspective view of the horn sleeve of a water environment monitoring data acquisition device and its usage method proposed in this invention;

[0049] Figure 11 This is a perspective view of the horizontal angle sensor installation of a water environment monitoring data acquisition device and its usage method proposed in this invention.

[0050] In the diagram: 1. Hull; 2. Rewinding bin; 21. Rewinding roller; 22. Power motor; 3. Collection hose; 31. Annular groove; 32. Sealing ring; 33. Self-priming pump; 34. Pipe fitting; 35. Liquid outlet; 36. Liquid drain hole; 37. Roller shaft; 38. Guide pipe; 39. Filter screen; 4. Ceramic ring; 41. Electrode ring; 42. Metal spring plate; 5. Airbag ball; 51. Air pressure pipe; 52. Electric cylinder; 6. Horn sleeve; 61. Depression angle sensor; 62. Horizontal angle sensor; 7. Linear sleeve; 71. Hinge shaft; 72. Sliding groove; 73. Elastic hole; 74. Spring; 75. Wire rope; 76. Rewinding motor. Detailed Implementation

[0051] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0052] Reference Figures 1-11 A water environment monitoring data acquisition device includes a remotely controlled hull 1, which can be an existing remote-controlled hull 1, and can be easily and quickly assembled and used.

[0053] To facilitate water sample collection from deeper water areas, a winding chamber 2 is located in the middle of the hull 1. The inner bottom wall of the winding chamber 2 is connected to the lower surface of the hull 1 through a through hole. Hollow winding rollers 21 are mounted on the inner walls of both sides of the winding chamber 2 via bearings. The winding rollers 21 are driven by a power motor 22, which has a large torque to facilitate control of the winding rollers 21.

[0054] To facilitate the collection of water samples at various depths in the water area, a collection mechanism is wound around the surface of the take-up roller 21. The collection mechanism includes a collection hose 3. The water sample is drawn into the take-up roller 21 through the collection hose 3 and then pumped out from the axis of the take-up roller 21 to realize the sampling action.

[0055] Specifically, it is implemented as follows: The collection mechanism also includes a self-priming pump 33 fixedly installed on the inner wall of the take-up roller 21. An annular groove 31 is opened on the outer surface of the roller shaft 37 at the center of the take-up roller 21. A sealing ring 32 is rotatably sleeved on the inner wall of the annular groove 31 through a bearing. The water outlet end of the self-priming pump 33 is connected to the interior of the sealing ring 32 and communicates with the annular groove 31 through a pipe fitting 34.

[0056] The inner bottom wall of the annular trough 31 has outlet holes 35 along the diameter of the roller shaft 37 towards the center line. A drain hole 36 connecting to the outside is also provided at the center line of the roller shaft 37. After multiple outlet holes 35 and drain holes 36 are connected, the self-priming pump 33 pumps the collected water sample from the pipe 34 into the annular trough 31, and finally discharges it through the outlet holes 35 into the drain holes 36 to one end of the roller shaft 37. This allows the collected water sample to be directly pumped onto the hull 1 for collection. It also allows the water sample to be collected through the collection hose 3 and then uniformly drawn onto the hull 1. Due to the use of electrical components, remote control can be achieved using existing remote control technology.

[0057] To facilitate water sample collection, a guide tube 38 is rotatably connected to one end of the roller shaft 37 via a bearing. The water sample is guided into the water sample tube through the guide tube 38. The collected water sample is then directly connected to the water sample tube to complete the water sample collection process.

[0058] To facilitate continuous power supply to the rotating electrical components, a movable electrical connection mechanism is provided at one end face of the take-up roller 21. This mechanism includes a rotating sleeve receiving a ceramic ring 4 at one end face of the take-up roller 21; ceramic provides excellent insulation. An electrode ring 41 is then fixedly mounted on the inner surface of the ceramic ring 4. A metal spring plate 42 is fixedly mounted on the surface of the take-up roller 21 near the electrode ring 41. The metal spring plate 42 rotates into contact with the surface of the electrode ring 41, thus powering the self-priming pump 33. This utilizes existing technology based on the principle of motor brush power supply, facilitating continuous power supply to the rotating electrical components.

[0059] To facilitate precise control of the sampling depth, a buoyancy mechanism is also provided at the bottom of the sampling hose 3 to control the sampling depth at the bottom of the sampling hose 3.

[0060] Specifically, the floating mechanism includes an airbag 5 fixed to the bottom of the collection hose 3. The top of the airbag 5 is connected to an electric cylinder 52 fixed in the take-up roller 21 via an air pressure pipe 51 to realize the inflation and deflation actions, so as to use air pressure to control the floating depth of the airbag 5.

[0061] The airbag 5 can be inflated or deflated as needed. When inflated, the airbag 5 will float upwards as the air pressure increases and the buoyancy increases, carrying the collection hose 3 to float to the designated depth for water sample collection. Conversely, after the air is sucked out, the airbag 5 will sink to the designated depth under the weight of the collection hose 3 for sampling.

[0062] In order to facilitate precise control of the sampling depth and position, it is necessary to accurately detect the angle information of the bottom end of the sampling hose 3. A horn sleeve 6 is also provided at the penetration point between the sampling hose 3 and the hull 1 to measure the tilt angle and circumferential rotation angle of the sampling hose 3.

[0063] Specifically, this is implemented as follows: The horn sleeve 6 consists of two sleeves hinged together on opposite sides. A depression angle sensor 61 is installed at the hinge point to measure the depression angle of the collection hose 3. The top sleeve, which passes through the hull 1, is rotatably mounted to the hull 1 via a bearing, allowing for horizontal rotation. A horizontal angle sensor 62 is installed on the surface of the horizontally rotating sleeve to measure the horizontal angle of the collection hose 3. After the collection hose 3 passes through the horn sleeve 6, the depression angle sensor 61 and the horizontal angle sensor 62 measure the angle of the collection hose 3. By measuring the main angles of the collection hose 3 using the depression angle sensor 61 and the horizontal angle sensor 62, the depth and position information of the water area where the collection hose 3 is located can be accurately calculated.

[0064] To prevent clogging, the sampling tube 3 connects to the water environment after penetrating the airbag bulb 5 to collect water samples. A filter screen 39 is also installed at the bottom of the sampling tube 3. The filter screen 39 effectively prevents clogging of the sampling tube 3.

[0065] To prevent insufficient buoyancy or gravity from hindering the sinking to the bottom silt layer, a state switching mechanism that allows the collection hose 3 to switch between straight and curved states is fitted onto the outer surface of the collection hose 3.

[0066] Specifically, the state switching mechanism includes a straight sleeve 7 that is fitted onto the outer surface of the acquisition hose 3. Adjacent straight sleeves 7 are hinged together by a hinge shaft 71 to form a chain or are elastically inserted together to form a straight line.

[0067] The surface of the linear sleeve 7 has a sliding groove 72 in the shape of a closed ring. When the hinge shaft 71 slides on the inner walls at both ends of the sliding groove 72, it achieves mutual hinge and elastic insertion. This ensures that two adjacent linear sleeves 7 can always be connected together.

[0068] Furthermore, the linear sleeve 7 has an elastic hole 73 in the same direction as the sliding groove 72. The inner wall of the elastic hole 73 is provided with a spring 74 that pops the bottom of the linear sleeve 7 downward. The two ends of the spring 74 are fixedly connected to the inner top wall of the elastic hole 73 and the top of the hinge shaft 71, respectively. The elastic force of the multiple springs 74 gradually increases from bottom to top. This arrangement of the springs 74 enables the elastic insertion to start from the bottom when switching the linear state, forming a progressive insertion from bottom to top, which is convenient for forming.

[0069] A steel wire rope 75 is fixedly connected to the top of the hinge shaft 71 located inside the spring 74. The top of the steel wire rope 75 is fixed to the inner top wall of the elastic hole 73. The topmost steel wire rope 75 passes through the interior of the winding roller 21. A drum equipped with a winding motor 76 is fixedly installed on the inner wall of the winding roller 21. After one end of the steel wire rope 75 inside the winding roller 21 is fixed to the surface of the drum, the winding action is achieved. The winding motor 76 is powered by a movable electrical connection mechanism. The shape of the collection hose 3 can be precisely controlled by the cooperation of the spring 74 and the steel wire rope 75.

[0070] This solves the problem that existing technologies rely on manual operation, which is not only inefficient, but also causes errors in depth control in water bodies with flowing water, as the force of the water flow causes the depth measuring scale to not be perpendicular to the ground.

[0071] Working principle: Step 1, determining position; after the hull 1 is controlled to sail to the designated water area, the reverse control motor 22 rotates, driving the roller 37 to release the linear sleeve 7 on the winding roller 21 in the reverse direction. The linear sleeve 7 is released from the horn sleeve 6 into the water area. If the water in the water area is flowing water, the airbag 5 at the bottom of the sampling hose 3 will move downstream with the water flow and form an angle. At this time, the sampling hose 3 drives the horn sleeve 6 to rotate. The downward angle sensor 61 detects and senses the angle of rotation, and at the same time, the horizontal angle sensor 62 detects and senses the horizontal angle of the airbag 5. At this time, the current position of the airbag 5 in the water area can be calculated by the length released by the linear sleeve 7 and the angles detected and sensed by the downward angle sensor 61 and the horizontal angle sensor 62.

[0072] Step 2: Collect water samples; Start the winding motor 76. Electrical energy is transmitted to the winding motor 76 through the rotating contact between the electrode ring 41 on the non-rotating ceramic ring 4 and the metal spring plate 42.

[0073] After impurities are filtered out by the filter screen 39 at the airbag ball 5, the water sample is drawn in from the bottom of the collection hose 3, pumped through the fitting 34 to the outlet hole 35, and then collected along the drain hole 36 to the guide pipe 38. At the same time, the roller shaft 37 can also rotate, and the sealing ring 32 is positioned by the fitting 34 and does not rotate, thus completing the water sample collection.

[0074] Step 3, Depth Adjustment: After the electric cylinder 52 is energized from the metal spring plate 42, it sucks out or presses in the airbag ball 5 through the air pressure pipe 51. When the airbag ball 5 is sucked out, it deflates. Under the action of its own weight, the collection hose 3 sinks. Conversely, the collection hose 3 floats up. After the adjustment is completed, the sample is taken.

[0075] Step 4: Deformation; Control the forward rotation of the winding motor 76 to start, the winding motor 76 pulls the wire rope 75 upward to tighten, starting from the bottom straight sleeve 7, sliding and inserting it with the bottom of the second to last straight sleeve 7, the hinge shaft 71 slides upward along the sliding groove 72 to the top, at the same time, the spring 74 is compressed, then the second to last straight sleeve 7 is inserted with the third to last straight sleeve 7 in the same way, the spring 74 is compressed, thus completing the switching of the sampling hose 3 from a soft shape to a straight shape, and then sampling can be performed. Conversely, reversing the winding motor 76 causes the wire rope 75 to loosen, and under the elastic force of the spring 74, the two adjacent straight sleeves 7 disengage and re-hinge with each other.

[0076] The above description is only 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 environment monitoring data acquisition device, comprising a remotely controlled hull (1), characterized in that: The hull (1) is provided with a winding chamber (2) in the middle, and the middle of the inner bottom wall of the winding chamber (2) is connected to the lower surface of the hull (1) through a through hole; The inner walls of both sides of the winding bin (2) are fitted with hollow winding rollers (21) via bearings, and the winding rollers (21) are driven by a power motor (22). The surface of the take-up roller (21) is wound with a collection mechanism, which includes a collection hose (3). The water sample is drawn into the take-up roller (21) through the collection hose (3) and then pumped out from the axis of the take-up roller (21) to realize the sampling action. The bottom of the collection hose (3) is also provided with a buoyancy mechanism for controlling the collection depth at the bottom of the collection hose (3); The outer surface of the collection hose (3) is also fitted with a state switching mechanism that can switch the collection hose (3) between straight lines and curves; The state switching mechanism includes a straight sleeve (7) sleeved on the outer surface of the collection hose (3). Adjacent straight sleeves (7) are hinged to each other through a hinge shaft (71) to form a chain or are elastically inserted to form a straight line. The surface of the linear sleeve (7) is provided with a sliding groove (72) in the shape of a closed ring. When the hinge shaft (71) slides on the inner walls of both ends of the sliding groove (72), it realizes the action of hinge and elastic insertion. The linear sleeve (7) has an elastic hole (73) in the same direction as the sliding groove (72). The inner wall of the elastic hole (73) is provided with a spring (74) that pops the bottom linear sleeve (7) downward. The two ends of the spring (74) are fixedly connected to the inner top wall of the elastic hole (73) and the top of the hinge shaft (71), respectively. The elastic force of the multiple springs (74) gradually increases from bottom to top. A steel wire rope (75) is fixedly connected to the top of the hinge shaft (71) located inside the spring (74). The top of the steel wire rope (75) is fixed to the inner top wall of the elastic hole (73). The topmost steel wire rope (75) passes through the interior of the winding roller (21). A drum equipped with a winding motor (76) is fixedly installed on the inner wall of the winding roller (21). One end of the steel wire rope (75) located inside the winding roller (21) is fixed to the surface of the drum to realize the winding action.

2. The water environment monitoring data acquisition device according to claim 1, characterized in that: The collection mechanism also includes a self-priming pump (33) fixedly installed on the inner wall of the winding roller (21). An annular groove (31) is provided on the outer surface of the roller shaft (37) at the center of the winding roller (21). A sealing ring (32) is rotatably sleeved on the inner wall of the annular groove (31) through a bearing. The water outlet of the self-priming pump (33) is connected to the interior of the sealing ring (32) and communicates with the annular groove (31) through a pipe (34). The inner bottom wall of the annular groove (31) is provided with a liquid outlet hole (35) along the diameter of the roller shaft (37) towards the center line. The center line of the roller shaft (37) is also provided with a drain hole (36) that connects to the outside. After the multiple liquid outlet holes (35) are connected to the drain hole (36), the water sample is pumped from the pipe (34) into the annular groove (31) by the self-priming pump (33), and finally discharged into the drain hole (36) through the liquid outlet hole (35) and discharged to one end of the roller shaft (37).

3. The water environment monitoring data acquisition device according to claim 2, characterized in that: One end of the roller (37) is connected to a guide pipe (38) via a bearing, through which the water sample is introduced into the water sample tube.

4. The water environment monitoring data acquisition device according to claim 3, characterized in that: The take-up roller (21) is also provided with a movable electrical connection mechanism at one end face. The take-up motor (76) is powered by the movable electrical connection mechanism. The movable electrical connection mechanism includes a ceramic ring (4) that is rotatably sleeved on one end face of the take-up roller (21). An electrode ring (41) is fixedly installed on the inner surface of the ceramic ring (4). A metal spring plate (42) is fixedly installed on the surface of the take-up roller (21) near the electrode ring (41). After the metal spring plate (42) rotates and contacts the surface of the electrode ring (41), the self-priming pump (33) is powered.

5. A water environment monitoring data acquisition device according to claim 4, characterized in that: The buoyancy mechanism includes an airbag ball (5) fixed at the bottom of the collection hose (3). The top of the airbag ball (5) is connected to an electric cylinder (52) fixed in the winding roller (21) through an air pressure pipe (51) to realize the inflation and deflation actions, so as to use air pressure to control the buoyancy depth of the airbag ball (5).

6. The water environment monitoring data acquisition device according to claim 5, characterized in that: The sampling hose (3) is also provided with a horn sleeve (6) at the point where it passes through the hull (1) to measure the tilt angle and circumferential rotation angle of the sampling hose (3). The horn sleeve (6) consists of two sleeves hinged to each other on opposite sides. A pitch angle sensor (61) for measuring the pitch angle of the collection hose (3) is provided at the hinge. The top sleeve passes through the hull (1) and is rotatably mounted to the hull (1) through a bearing to achieve rotation in the horizontal direction. A horizontal angle sensor (62) for measuring the horizontal angle of the collection hose (3) is provided on the surface of the horizontally rotating sleeve. After the collection hose (3) passes through the horn sleeve (6), the pitch angle sensor (61) and the horizontal angle sensor (62) measure the angle of the collection hose (3).

7. A water environment monitoring data acquisition device according to claim 6, characterized in that: The collection tube penetrates the airbag (5) and connects with the water environment to collect water samples. The bottom of the collection tube (3) is also equipped with a filter screen (39).

8. The method of using the water environment monitoring data acquisition device according to claim 7, characterized in that... ； The process includes step one, determining the position; after the hull (1) sails to the designated water area, the reverse control motor (22) rotates, driving the roller (37) to release the straight sleeve (7) on the winding roller (21) in the reverse direction. The straight sleeve (7) is released from the horn sleeve (6) into the water area. If the water in the water area is flowing water, the airbag (5) at the bottom of the collection hose (3) will form an angle as it flows downstream. At this time, the collection hose (3) drives the horn sleeve (6) to rotate. The downward angle sensor (61) detects and senses the angle of rotation, while the horizontal angle sensor (62) detects and senses the horizontal angle of the airbag (5). At this time, the current position of the airbag (5) in the water area can be calculated by the length released by the straight sleeve (7) and the angles detected and sensed by the downward angle sensor (61) and the horizontal angle sensor (62). Step 2: Collect water samples; Start the winding motor (76). Electrical energy is transmitted to the winding motor (76) through the rotating contact between the electrode ring (41) on the non-rotating ceramic ring (4) and the metal spring plate (42). After impurities are filtered out by the filter screen (39) at the airbag ball (5), the water sample is drawn in from the bottom of the collection hose (3), pumped through the fitting (34) to the outlet hole (35), and then collected along the drain hole (36) to the guide pipe (38). At the same time, the roller shaft (37) can also rotate, and the sealing ring (32) is positioned by the fitting (34) and does not rotate, thus completing the water sample collection. Step 3, Depth Adjustment; After the electric cylinder (52) is powered by the metal spring plate (42), it sucks out or presses in the airbag ball (5) through the air pressure tube (51). When sucking out, the airbag ball (5) deflates. Under the action of its own weight, the collection hose (3) sinks. Conversely, the collection hose (3) floats up. After the adjustment is completed, the sample is taken. Step 4, Deformation; Control the winding motor (76) to start rotating forward. The winding motor (76) pulls the wire rope (75) upward and tightens it. Starting from the bottom straight sleeve (7), it slides into the bottom of the second to last straight sleeve (7). The hinge shaft (71) slides upward along the sliding groove (72) to the top. At the same time, the spring (74) is compressed. Then the second to last straight sleeve (7) is inserted into the third to last straight sleeve (7) in the same way. The spring (74) is compressed. In this way, the sampling hose (3) is switched from soft to straight shape, and sampling can be performed. Conversely, the winding motor (76) is reversed to loosen the wire rope (75). Under the elastic force of the spring (74), the two adjacent straight sleeves (7) are disengaged and re-hinged.

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