A floating bed for river ecological management and its application method

Abstract

The application belongs to the technical field of ecological management, and particularly relates to a river ecological management floating bed and a use method thereof, which comprises a floating bed body, a through groove is formed at the center of the floating bed body, an installation cylinder is fixedly arranged at the upper end of the through groove, and a radar water depth gauge is fixedly inserted into the upper end of the installation cylinder. The water body in the water area where the floating bed is located can be quickly sampled, the degree of water body eutrophication can be quickly detected, the growth speed of aquatic plants can be judged based on the degree of water body eutrophication, the staff can be more timely and effectively reminded to clean the aquatic plants at a suitable time, the problem of excessive expansion can be avoided, the waste of labor is reduced, the floating bed body can be freely moved, each area of the water body in the river can be moved and detected, and thus the accurate management of the eutrophication area of the river can be met.

Description

Technical Field

[0001] This invention belongs to the field of ecological governance technology, and in particular relates to a floating bed for river ecological governance and its usage method. Background Technology

[0002] River ecological management refers to improving and protecting the ecological environment of rivers, promoting the healthy development of ecosystems, and restoring and enhancing the ecological functions of rivers. The main objectives of river ecological management are to protect the aquatic ecological environment, maintain ecological balance, and promote the sustainable use of water resources.

[0003] In river ecological management, floating beds refer to a layer of suspended matter or aquatic vegetation floating on the surface of a water body. Floating beds have an important impact on the ecological environment and water quality of rivers. The suspended matter and aquatic plants on the floating beds can adsorb and absorb pollutants such as organic matter, heavy metals, and nutrients in the water, thereby purifying the water and improving its transparency and quality. Currently, ecological floating beds are used in a fixed manner in rivers with the help of ropes. However, eutrophication caused by pollution in rivers is not evenly distributed. More often, one area of ​​the water body is eutrophic while other areas are normal. Therefore, the fixed deployment of floating beds is difficult to meet the needs of ecological management of rivers.

[0004] Furthermore, during the ecological restoration process using floating beds, the higher the eutrophication level in the water, the faster the aquatic plants on the floating beds will grow. This can lead to excessive expansion of the floating beds after a period of time, directly causing the water surface to be covered and affecting water flow. This has a negative impact on the ecological restoration. Therefore, staff need to regularly treat the aquatic plants on the floating beds. However, regular treatment has two problems: First, when the eutrophication level of the water is not high, the growth of aquatic plants is relatively slow, and cleaning is not effective and wastes labor. Second, when the eutrophication level of the water is very high, the growth rate of aquatic plants is relatively fast, and using regular treatment can easily lead to excessive expansion of aquatic plants, resulting in untimely treatment. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a floating bed for river ecological management and its application method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a floating bed for river ecological management, comprising a floating bed body, a through groove being formed at the center of the floating bed body, and an installation cylinder being fixedly installed at the upper end corresponding to the through groove. A radar depth gauge is fixedly inserted into the upper end of the installation cylinder. A rope pulling mechanism is also fixedly installed on one side of the upper end of the installation cylinder. The lower output end of the rope pulling mechanism passes through the upper end of the installation cylinder and is fixedly connected to a water intake detection mechanism. An ammonia nitrogen sensor corresponding to the position of the water intake detection mechanism is fixedly inserted into the upper end of the installation cylinder. The upper end of the installation cylinder is fixed... A water eutrophication level feedback mechanism electrically connected to an ammonia nitrogen sensor is installed. An anti-overexpansion treatment reminder mechanism electrically connected to the water eutrophication level feedback mechanism is also fixedly installed at the upper end of the mounting cylinder. River edge feedback mechanisms are fixedly installed on both opposite sides of the floating bed body. A power movement mechanism is fixedly installed at the lower end of the floating bed body. A PLC controller is also fixedly installed on the inner wall of the mounting cylinder. The radar depth gauge, rope pulling mechanism, water intake detection mechanism, ammonia nitrogen sensor, river edge feedback mechanism, and power movement mechanism are all electrically connected to the PLC controller.

[0007] In the aforementioned floating bed for river ecological management, the rope pulling mechanism includes a winch fixedly installed at the upper end of the mounting cylinder. A pulling rope is wound on the winch. The lower end of the pulling rope passes through a through hole at the upper end of the mounting cylinder and is fixedly connected to a connecting plate. One end of the connecting plate is fixedly connected to the outer wall of the water intake and detection mechanism. A support cylinder sleeved outside the pulling rope is also fixedly connected to the top of the inner wall of the mounting cylinder. The lower end of the support cylinder is designed with an outward expansion structure and abuts against the upper end of the connecting plate.

[0008] In the above-mentioned floating bed for river ecological management, the water intake and detection mechanism includes a water intake cylinder with openings at both the upper and lower ends. A rotary motor is fixedly connected to the inner wall of both the upper and lower ends of the water intake cylinder. A sealing baffle is fixedly connected to the output end of the rotary motor. The sealing baffle is located outside both ends of the water intake cylinder. Multiple supporting rollers are also fixedly connected to the side wall of the water intake cylinder. A counterweight is fixedly installed on the lower outer wall of the water intake cylinder.

[0009] In the aforementioned floating bed for river ecological management, the eutrophication feedback mechanism includes a feedback shell. Multiple guide rods are fixedly connected to the inner wall of the feedback shell. A single feedback plate is slidably sleeved around the guide rods. A feedback electromagnetic plate is fixedly connected to the rear side of the inner wall of the feedback shell. A feedback permanent magnet plate is fixedly connected to the rear side of the feedback plate. Multiple return springs, sleeved on the guide rods, are fixedly connected to the front side of the inner wall of the feedback plate and the front side of the inner wall of the feedback shell. An insulating shell is also fixedly connected to one side of the feedback shell. A feedback resistor rod is fixedly connected inside the insulating shell. An extension block is fixedly connected to the side wall of the feedback plate. One end of the extension block extends through a strip-shaped opening in the side wall of the feedback shell into the insulating shell and is fixedly connected to a feedback conductive contact piece that is in electrical contact with the feedback resistor rod. An electric push rod is fixedly installed inside the feedback plate. The output end of the electric push rod extends through one side of the feedback plate and is fixedly connected to a rubber limiting plate. A low-eutrophication feedback mechanism is fixedly installed on the rear side of the feedback plate and the rear outer wall of the feedback shell.

[0010] In the aforementioned floating bed for river ecological management, the anti-overexpansion treatment reminder mechanism includes an adjustment shell. An adjustment screw is rotatably connected to the inner walls of opposite sides of the adjustment shell via bearings. A drive motor is fixedly connected to the rear side of the adjustment shell. The output end of the drive motor is connected to the rear end of the adjustment screw via a reduction gearbox. A drive block is threaded onto the wall of the adjustment screw. An arc-shaped pressing block is fixedly connected to one side of the drive block. A start switch corresponding to the position of the arc-shaped pressing block is fixedly installed on the front inner wall of the adjustment shell. An alarm is fixedly installed on the outer wall of the adjustment shell. The start switch and the alarm are electrically connected. The feedback resistor and the feedback conductive contact are connected in series in the power supply circuit of the drive motor.

[0011] In the aforementioned floating bed for river ecological management, the river edge feedback mechanism includes a positioning rod fixedly connected to the outer wall of the floating bed body. One end of the positioning rod is movably fitted with an edge cylinder, and one end of the edge cylinder is fixedly connected to a contact ball. A signal switch is fixedly installed at the bottom of the inner wall of the edge cylinder. One end of the positioning rod is fixedly fitted with an outer expansion ring plate located behind the edge cylinder. Multiple anti-detachment rods are fixedly connected to the rear end of the edge cylinder. One end of each anti-detachment rod penetrates the side wall of the outer expansion ring plate and is fixedly connected to an anti-detachment plate. Multiple compensating springs fitted around the anti-detachment rods are fixedly connected between the edge cylinder and the outer expansion ring plate.

[0012] In the above-mentioned floating bed for river ecological management, the power movement mechanism includes a steering motor fixedly connected to the lower outer wall of the floating bed body, a submersible thruster fixedly connected to the lower output end of the steering motor, and a waterproof protective shell installed outside the steering motor.

[0013] In the aforementioned floating bed for river ecological management, the eutrophication feedback mechanism includes a trigger rod fixedly connected to the rear side of the feedback plate. A trigger cylinder is also fixedly connected to the rear side of the feedback shell. The rear end of the trigger rod extends through the rear end of the feedback shell and into the trigger cylinder. Multiple fixed sliding rods are fixedly connected between the inner wall of the rear end of the trigger cylinder and the rear side of the feedback shell. The same force plate is slidably sleeved on the outside of the multiple fixed sliding rods. A pressure trigger switch is fixedly connected to the front side of the force plate. Multiple push springs sleeved on the outside of the fixed sliding rods are fixedly connected between the rear side of the inner wall of the trigger cylinder and the force plate.

[0014] A method for using a floating bed for river ecological restoration includes the following steps:

[0015] S1. The submersible thruster provides power to the entire floating bed body, enabling the floating bed body to move. When the floating bed body moves to the side of the river, the contact ball abuts against the side of the river. As the floating bed body continues to move, the positioning rod moves relative to the contact cylinder. When the positioning rod acts on the signal switch, the signal switch feeds back a signal to the PLC controller. The PLC controller drives the steering motor to rotate the submersible thruster 90 degrees, causing the entire floating bed body to continue moving forward a certain distance. Then, the steering motor is controlled to rotate the submersible thruster 90 degrees, and the lateral linear movement is performed again.

[0016] S2. The floating bed body moves a certain distance and then stops. When the floating bed body stops, the radar depth gauge detects the current water depth and sends a feedback signal to the PLC controller. Based on the water depth, the water intake tube performs sampling operations at different depths. The winch, in conjunction with the pulling rope, adjusts the relative lowering height of the water intake tube. When lowering the water intake tube, the upper and lower sealing baffles are disengaged from both ends of the water intake tube by the drive of the rotating motor, thus opening both ends of the water intake tube. Water flows through the water intake tube without leaving any residue. When the water intake tube reaches the appropriate sampling depth... After the sample depth is measured, the rotary motor is driven again to rotate the sealing baffle, which seals both ends of the water intake tube, thus storing the water at the current depth inside the water intake tube. The winch, together with the pulling rope, lifts the water intake tube upward. When the upper end of the water intake tube moves to the through hole at the center of the floating bed body, the PLC controller controls the rotary motor on the upper side to drive the sealing baffle to move, thereby opening the upper end of the water intake tube. The water intake tube continues to move upward in a vertical state under the resistance of the counterweight block on the side wall and the support roller, so that the ammonia nitrogen sensor can be inserted into the water intake tube.

[0017] S3. The drive motor, in conjunction with the reduction gearbox, drives the adjusting screw to rotate. Through the threaded connection between the adjusting screw and the drive block, the arc-shaped pressing block gradually moves. When the arc-shaped pressing block acts on the start switch, the start switch remotely reminds the user to operate via an alarm.

[0018] S4. When the trigger rod remains in contact with the pressure trigger switch after detection, the pressure trigger switch sends a feedback signal to the PLC controller, and the PLC controller continues to drive the floating bed body to move through the submersible thruster.

[0019] Compared with existing technologies, the advantages of this invention are as follows:

[0020] 1. Through the set floating bed body, rope pulling mechanism, water sampling and detection mechanism, radar depth gauge and ammonia nitrogen sensor, it is possible to quickly sample the water in the water body where the floating bed is located, quickly detect the eutrophication level of the water body, and select water samples at appropriate depths for testing based on the water depth to ensure the quality of the test.

[0021] 2. By incorporating ammonia nitrogen sensors, eutrophication level feedback mechanisms, over-expansion prevention and treatment reminder mechanisms, and hypotrophication feedback mechanisms, the system can determine whether the water body is eutrophic. This allows aquatic plants on the floating bed to remain there for water quality treatment. Based on the degree of eutrophication, the system can assess the growth rate of aquatic plants, enabling timely and effective reminders for staff to remove them at appropriate times, preventing over-expansion and reducing labor waste.

[0022] 3. Through the established river edge feedback mechanism and power movement mechanism, the floating bed body can move freely and can move and detect each area of ​​the water in the river, thereby meeting the needs of accurate treatment of eutrophic areas in the river.

[0023] In summary, this invention enables rapid sampling of the water body in the area where the floating bed is located and rapid detection of the eutrophication level. It allows for the selection of water samples at appropriate depths for testing, ensuring testing quality and determining whether the water body is eutrophic. This allows aquatic plants on the floating bed to remain there for water quality treatment. Furthermore, the invention assesses the growth rate of aquatic plants based on the degree of eutrophication, providing timely and effective reminders for staff to remove the plants at appropriate times, preventing overexpansion and reducing labor waste. The invention also allows the floating bed to move freely and probe every area of ​​the water body in the river, thus meeting the needs for accurate treatment of eutrophic areas in the river. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a floating bed for river ecological management provided by the present invention;

[0025] Figure 2 This is a cross-sectional structural schematic diagram of the rope pulling mechanism of a floating bed for river ecological management provided by the present invention;

[0026] Figure 3This is a cross-sectional structural schematic diagram of a water intake and testing mechanism for a floating bed used for river ecological management provided by the present invention;

[0027] Figure 4 This is a top-view cross-sectional structural diagram of a water eutrophication level feedback mechanism for a floating bed for river ecological management provided by the present invention;

[0028] Figure 5 This is a top-view cross-sectional structural diagram of an anti-overexpansion treatment reminder mechanism for a floating bed used for river ecological management provided by the present invention;

[0029] Figure 6 This is a cross-sectional structural schematic diagram of the river edge feedback mechanism of a floating bed for river ecological management provided by the present invention;

[0030] Figure 7 This is a schematic diagram of the power movement mechanism of a floating bed for river ecological management provided by the present invention;

[0031] Figure 8 This is a cross-sectional schematic diagram of the hypotrophication feedback mechanism of a floating bed for river ecological management provided by the present invention;

[0032] Figure 9 This is a cross-sectional structural schematic diagram of the feedback plate of a floating bed for river ecological management provided by the present invention.

[0033] In the diagram: 1. Floating bed body; 2. Rope pulling mechanism; 21. Winch; 22. Pulling rope; 23. Connecting plate; 24. Support cylinder; 3. Water intake detection mechanism; 31. Water intake cylinder; 32. Rotary motor; 33. Sealing baffle; 34. Support roller; 35. Counterweight; 4. Water eutrophication feedback mechanism; 41. Feedback shell; 42. Guide slide rod; 43. Feedback plate; 44. Feedback electromagnetic plate; 45. Feedback permanent magnet plate; 46. Return spring; 47. Insulating shell; 48. Feedback resistor rod; 49. Extension block; 410. Feedback conductive contact; 411. Electric push rod; 412. Rubber limit plate; 5. Anti-over-expansion treatment reminder mechanism; 51. Control shell; 52. Adjusting screw, 53 drive motor, 54 reduction gearbox, 55 drive block, 56 arc-shaped pressing block, 57 start switch, 58 warning device, 6 river edge contact feedback mechanism, 61 positioning rod, 62 edge contact cylinder, 63 contact ball, 64 signal switch, 65 outer expansion ring plate, 66 anti-detachment rod, 67 anti-detachment plate, 68 compensation spring, 7 power movement mechanism, 71 steering motor, 72 submersible thruster, 8 eutrophication feedback mechanism, 81 trigger rod, 82 trigger cylinder, 83 fixed slide rod, 84 force plate, 85 pressure trigger switch, 86 extrusion spring, 9 mounting cylinder, 10 radar depth gauge, 11 ammonia nitrogen sensor, 12 PLC controller. Detailed Implementation

[0034] 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.

[0035] like Figures 1-9 As shown, a floating bed for river ecological management includes a floating bed body 1. A through groove is opened at the center of the floating bed body 1, and an installation cylinder 9 is fixedly installed at the upper end of the corresponding through groove. A radar depth gauge 10 is fixedly inserted at the upper end of the installation cylinder 9. A rope pulling mechanism 2 is also fixedly installed on one side of the upper end of the installation cylinder 9. The rope pulling mechanism 2 includes a winch 21 fixedly installed at the upper end of the installation cylinder 9. A pulling rope 22 is wound on the winch 21. The lower end of the pulling rope 22 passes through the through hole opened at the upper end of the installation cylinder 9 and is fixedly connected to a connecting plate 23. One end of the connecting plate 23 is fixedly connected to the outer wall of the water intake detection mechanism 3. A support cylinder 24 is also fixedly connected to the top of the inner wall of the installation cylinder 9, which is sleeved outside the pulling rope 22. The lower end of the support cylinder 24 is designed as an outward expansion structure and abuts against the upper end of the connecting plate 23.

[0036] The lower output end of the rope pulling mechanism 2 passes through the upper end of the mounting cylinder 9 and is fixedly connected to the water intake detection mechanism 3. The water intake detection mechanism 3 includes a water intake cylinder 31. Both the upper and lower ends of the water intake cylinder 31 have openings. Both the upper and lower inner walls of the water intake cylinder 31 are fixedly connected to a rotary motor 32. The output end of the rotary motor 32 is fixedly connected to a sealing baffle 33. The sealing baffle 33 is set outside both ends of the water intake cylinder 31. Multiple support rollers 34 are also fixedly connected to the side wall of the water intake cylinder 31. A counterweight block 35 is fixedly installed on the lower outer wall of the water intake cylinder 31.

[0037] An ammonia nitrogen sensor 11, corresponding to the position of the water intake detection mechanism 3, is fixedly inserted into the upper end of the mounting cylinder 9. A water eutrophication level feedback mechanism 4, electrically connected to the ammonia nitrogen sensor 11, is fixedly installed at the upper end of the mounting cylinder 9. The water eutrophication level feedback mechanism 4 includes a feedback shell 41. Multiple guide rods 42 are fixedly connected to the inner wall of the feedback shell 41. The same feedback plate 43 is slidably sleeved on the outer side of the multiple guide rods 42. A feedback electromagnetic plate 44 is fixedly connected to the rear side of the inner wall of the feedback shell 41. A feedback permanent magnet plate 45 is fixedly connected to the rear side of the feedback plate 43. The front side of the inner wall of the feedback plate 43 and the front side of the inner wall of the feedback shell 41 are fixedly connected. Multiple reset springs 46 are connected to the outside of the guide slide rod 42. An insulating shell 47 is fixedly connected to one side of the feedback shell 41. A feedback resistor rod 48 is fixedly connected inside the insulating shell 47. An extension block 49 is fixedly connected to the side wall of the feedback plate 43. One end of the extension block 49 passes through a strip-shaped opening in the side wall of the feedback shell 41 and extends into the insulating shell 47. A feedback conductive contact 410 that is in electrical contact with the feedback resistor rod 48 is fixedly connected to it. An electric push rod 411 is fixedly installed inside the feedback plate 43. The output end of the electric push rod 411 passes through one side of the feedback plate 43 and is fixedly connected to a rubber limiting plate 412.

[0038] A low-nutrient feedback mechanism 8 is fixedly installed on the rear side of the feedback plate 43 and the rear outer wall of the feedback shell 41. The low-nutrient feedback mechanism 8 includes a trigger rod 81 fixedly connected to the rear side of the feedback plate 43. A trigger cylinder 82 is also fixedly connected to the rear side of the feedback shell 41. The rear end of the trigger rod 81 extends through the rear end of the feedback shell 41 and extends into the trigger cylinder 82. Multiple fixed sliding rods 83 are fixedly connected between the rear inner wall of the trigger cylinder 82 and the rear side of the feedback shell 41. The same force plate 84 is slidably sleeved on the outside of the multiple fixed sliding rods 83. A pressure trigger switch 85 is fixedly connected to the front side of the force plate 84. Multiple extrusion springs 86 sleeved on the outside of the fixed sliding rods 83 are fixedly connected between the rear inner wall of the trigger cylinder 82 and the force plate 84.

[0039] The upper end of the mounting cylinder 9 is also fixedly equipped with an anti-overexpansion treatment reminder mechanism 5, which is electrically connected to the water eutrophication level feedback mechanism 4. The anti-overexpansion treatment reminder mechanism 5 includes a control shell 51. An adjusting screw 52 is rotatably connected to the inner wall of the front and rear opposite sides of the control shell 51 through a bearing. A drive motor 53 is also fixedly connected to the rear side of the control shell 51. The output end of the drive motor 53 is connected to the rear end of the adjusting screw 52 through a reduction gearbox 54. A drive block 55 is threaded onto the rod wall of the adjusting screw 52. An arc-shaped pressing block 56 is fixedly connected to one side of the drive block 55. A start switch 57 corresponding to the position of the arc-shaped pressing block 56 is fixedly installed on the front side of the inner wall of the control shell 51. An alarm 58 is fixedly installed on the outer wall of the control shell 51. The start switch 57 and the alarm 58 are electrically connected. The feedback resistor 48 and the feedback conductive contact 410 are connected in series in the power supply circuit of the drive motor 53.

[0040] Riverside contact feedback mechanisms 6 are fixedly installed on both opposite sides of the floating bed body 1. The riverside contact feedback mechanism 6 includes a positioning rod 61 fixedly connected to the outer wall of the floating bed body 1. One end of the positioning rod 61 is movably inserted with a contact cylinder 62. One end of the contact cylinder 62 is fixedly connected with a contact ball 63. A signal switch 64 is fixedly installed at the bottom of the inner wall of the contact cylinder 62. One end of the positioning rod 61 is fixedly sleeved with an outer expansion ring plate 65 located behind the contact cylinder 62. Multiple anti-detachment rods 66 are fixedly connected to the rear end of the contact cylinder 62. One end of the anti-detachment rod 66 penetrates the side wall of the outer expansion ring plate 65 and is fixedly connected with an anti-detachment plate 67. Multiple compensating springs 68 sleeved on the outside of the anti-detachment rods 66 are fixedly connected between the contact cylinder 62 and the outer expansion ring plate 65.

[0041] A power moving mechanism 7 is fixedly installed at the lower end of the floating bed body 1. The power moving mechanism 7 includes a steering motor 71 fixedly connected to the outer wall of the lower end of the floating bed body 1. A submersible thruster 72 is fixedly connected to the lower output end of the steering motor 71. A waterproof protective shell is also installed outside the steering motor 71.

[0042] The inner wall of the mounting cylinder 9 is also fixedly equipped with a PLC controller 12. The radar depth gauge 10, the rope pulling mechanism 2, the water intake detection mechanism 3, the ammonia nitrogen sensor 11, the river edge contact feedback mechanism 6, and the power movement mechanism 7 are all electrically connected to the PLC controller 12.

[0043] The operating principle of the present invention is described as follows: The submersible propeller 72 provides power to the entire floating bed body 1, enabling the floating bed body 1 to move. When the floating bed body 1 moves to the side of the river, the contact ball 63 abuts against the side of the river. As the floating bed body 1 continues to move, the positioning rod 61 moves relative to the contact cylinder 62. When the positioning rod 61 acts on the signal switch 64, the signal switch 64 feeds back a signal to the PLC controller 12. The PLC controller 12 drives the steering motor 71 to rotate the submersible propeller 72 by 90 degrees, so that the entire floating bed body 1 continues to move forward a certain distance. Then, the steering motor 71 is controlled to rotate the submersible propeller 72 by 90 degrees, and it moves laterally in a straight line again. This allows the floating bed body 1 to move in a serpentine manner in the river, enabling the floating bed body 1 to move freely and to move and detect each area of ​​the water in the river, thereby meeting the requirements for accurate treatment of eutrophic areas in the river.

[0044] The floating bed 1 moves a certain distance and then stops. This distance depends on the size of the floating bed 1 and the range of aquatic plants it can manage. When the floating bed 1 stops, the radar depth gauge 10 detects the current water depth. Based on the principle of electromagnetic waves, the radar depth gauge 10 determines the water depth by emitting electromagnetic waves to the water surface and receiving the reflected signals. It then feeds back the signal to the PLC controller 12, which, based on the water depth, causes the water sampling tube 31 to perform sampling operations at different depths. If the surface water is shallow (e.g., less than 1 meter), the surface water sample is more susceptible to the influence of air bubbles, light, and interference from sediments and benthic organisms. In this case, a deeper water layer is selected for sampling. If the water is deep (e.g., more than 5 meters), the bottom water sample will be more susceptible to the influence of air bubbles, light, sediment, and benthic organisms. Nutrients undergo significant changes due to biological utilization, resulting in lower nutrient concentrations in the bottom water. Therefore, sampling is performed at locations with shallower surface water. The winch 21, in conjunction with the pull rope 22, adjusts the relative lowering height of the water collection cylinder 31. During lowering, the upper and lower sealing baffles 33 disengage from both ends of the water collection cylinder 31 under the drive of the rotary motor 32, opening both ends of the cylinder and allowing water to pass through without residue. Once the water collection cylinder 31 reaches the appropriate sampling depth, the rotary motor 32 is driven again to rotate the sealing baffles 33, sealing both ends of the cylinder and storing the water at the current depth within the cylinder. The winch 21, in conjunction with the pull rope 22, adjusts the relative lowering height of the water collection cylinder 31. The rope 22 lifts the water intake cylinder 31 upwards. When the upper end of the water intake cylinder 31 moves to the through hole at the center of the floating bed body 1, the PLC controller 12 controls the upper rotating motor 32 to drive the sealing baffle 33, thereby opening the upper end of the water intake cylinder 31. The water intake cylinder 31 continues to move upwards in a vertical state under the support of the side wall counterweight 35 and the support roller 34, so that the ammonia nitrogen sensor 11 is inserted into the water intake cylinder 31. The direct manifestation of eutrophication of water is a high concentration of ammonia nitrogen. The ammonia nitrogen sensor 11 can be used to measure the ammonia nitrogen content in the water. After the ammonia nitrogen in the water reacts with the working electrode of the ammonia nitrogen sensor 11, the resulting current change is directly proportional to the ammonia nitrogen content in the water. This is because the oxidation or reduction of ammonia nitrogen molecules involves... The transfer of electrons leads to a change in current. This current is amplified and acts on the feedback electromagnetic plate 44. The feedback electromagnetic plate 44 is energized and generates magnetism, which, together with the feedback permanent magnet plate 45, drives the feedback plate 43 to move along the guide slide rod 42 against the elastic force of the reset spring 46. The feedback plate 43, through the extension block 49, drives the feedback conductive contact 410 to move on the feedback resistor rod 48. Specifically, the higher the concentration of ammonia nitrogen in the water, the greater the distance that the feedback conductive contact 410 moves on the feedback resistor rod 48, thus making the resistance of the feedback resistor rod 48 smaller. After the ammonia nitrogen sensor 11 detects and maintains a stable current for 2 seconds, the PLC controller 12 controls the electric push rod 411 to move. The electric push rod 411 pushes the rubber limit plate 412 to move.This causes the rubber limiting plate 412 to abut against the inner wall of the feedback shell 41, thereby fixing the relative position of the feedback plate 43 and thus fixing the resistance value of the resistor rod. This allows for rapid sampling of the water body in the area where the floating bed is located, rapid detection of eutrophication, and selection of water samples at appropriate depths for testing, ensuring detection quality.

[0045] As the eutrophication level of the water body increases, the resistance value of the feedback resistor 48 connected to it decreases. The feedback conductive contact 410 and the feedback resistor 48 are connected in series in the power supply circuit of the drive motor 53. The drive motor 53 is a DC motor. The decrease in the resistance value of the feedback resistor 48 connected to it leads to an increase in the power supply current, which in turn increases the power of the drive motor 53. The drive motor 53, together with the reduction gearbox 54, drives the adjusting screw 52 to rotate. Through the threaded connection between the adjusting screw 52 and the drive block 55, the arc-shaped pressing block 56 gradually moves. When the arc-shaped pressing block 56 acts on the start switch 57, the start switch 57 remotely reminds the user through the alarm 58.

[0046] When the eutrophication level of the water body is very low, the current flowing through the feedback electromagnetic plate 44 is small, and the downward movement distance of the feedback plate 43 is small. The movement of the trigger rod 81 driven by the feedback plate 43 cannot disengage the trigger rod 81 from the pressure trigger switch 85. The pressure trigger switch 85 can feed back a signal to the PLC controller 12. The PLC controller 12 continues to drive the floating bed body 1 to move through the submersible propeller 72. It can determine whether the water body is eutrophic, thereby allowing the aquatic plants on the floating bed body 1 to remain there for water quality treatment. Based on the degree of eutrophication, it can determine the growth rate of the aquatic plants, which can more timely and effectively remind staff to clean the aquatic plants at the appropriate time, avoid the problem of over-expansion, and reduce the waste of labor.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A river ecological management floating bed, comprising a floating bed body (1), characterized in that, The center of the floating bed body (1) is provided with a through slot, and the upper end of the through slot is fixedly provided with a mounting cylinder (9). The upper end of the mounting cylinder (9) is fixedly inserted with a radar water depth gauge (10). The upper end of the mounting cylinder (9) is also fixedly provided with a rope pulling mechanism (2). The lower end output end of the rope pulling mechanism (2) penetrates the upper end of the mounting cylinder (9) and is fixedly connected with a water sampling detection mechanism (3). The upper end of the mounting cylinder (9) is fixedly inserted with an ammonia nitrogen sensor (11) corresponding to the position of the water sampling detection mechanism (3). The upper end of the mounting cylinder (9) is fixedly provided with a water body eutrophication degree feedback mechanism (4) electrically connected with the ammonia nitrogen sensor (11). The upper end of the mounting cylinder (9) is also fixedly provided with an over-expansion prevention treatment reminding mechanism (5) electrically connected with the water body eutrophication degree feedback mechanism (4). The opposite sides of the floating bed body (1) are both fixedly provided with a riverway edge touching feedback mechanism (6). The lower end of the floating bed body (1) is fixedly provided with a power moving mechanism (7). The inner wall of the mounting cylinder (9) is also fixedly provided with a PLC controller (12). The radar water depth gauge (10), the rope pulling mechanism (2), the water sampling detection mechanism (3), the ammonia nitrogen sensor (11), the riverway edge touching feedback mechanism (6) and the power moving mechanism (7) are all electrically connected with the PLC controller (12); The water body eutrophication degree feedback mechanism (4) comprises a feedback shell (41). The inner wall of the feedback shell (41) is fixedly connected with a plurality of guide sliding rods (42). The same feedback plate (43) is slidably sleeved outside the plurality of guide sliding rods (42). The inner wall of the feedback shell (41) is fixedly connected with a feedback electromagnetic plate (44) at the rear side. The rear side of the feedback plate (43) is fixedly connected with a feedback permanent magnet plate (45). The inner wall of the feedback plate (43) and the inner wall of the feedback shell (41) are fixedly connected with a plurality of reset springs (46) sleeved outside the guide sliding rods (42). One side of the feedback shell (41) is also fixedly connected with an insulating shell (47). The insulating shell (47) is fixedly connected with a feedback resistance rod (48) inside. The side wall of the feedback plate (43) is fixedly connected with an extension block (49). One end of the extension block (49) penetrates into the insulating shell (47) through the strip-shaped through hole formed in the side wall of the feedback shell (41) and is fixedly connected with a feedback conductive tab (410) electrically connected with the feedback resistance rod (48). The feedback plate (43) is fixedly provided with an electric push rod (411) inside. The output end of the electric push rod (411) penetrates one side of the feedback plate (43) and is fixedly connected with a rubber limiting plate (412). The rear side of the feedback plate (43) and the rear end outer wall of the feedback shell (41) are fixedly provided with a low eutrophication feedback mechanism (8). The anti-overexpansion processing reminding mechanism (5) comprises a regulating shell (51), the inner wall of the opposite side of the front and back of the regulating shell (51) is rotatably connected with an adjusting screw rod (52) through a bearing, the rear side of the regulating shell (51) is further fixedly connected with a driving motor (53), the output end of the driving motor (53) and the rear end of the adjusting screw rod (52) are drivingly connected through a speed reducer gear box (54), the rod wall of the adjusting screw rod (52) is threadedly sleeved with a driving block (55), one side of the driving block (55) is fixedly connected with an arc-shaped pressing block (56), the inner wall of the front side of the regulating shell (51) is fixedly provided with a starting switch (57) corresponding to the position of the arc-shaped pressing block (56), the outer wall of the regulating shell (51) is fixedly provided with a warning device (58), the starting switch (57) and the warning device (58) are electrically connected, the feedback resistance rod (48) and the feedback conductive tab (410) are connected in series on the power supply circuit of the driving motor (53); The low-nutrient feedback mechanism (8) comprises a trigger rod (81) fixedly connected to the rear side of the feedback plate (43), the rear side of the feedback shell (41) is further fixedly connected with a trigger cylinder (82), the rear end of the trigger rod (81) penetrates out of the rear end of the feedback shell (41) and extends into the trigger cylinder (82), a plurality of fixed slide rods (83) are fixedly connected between the rear end inner wall of the trigger cylinder (82) and the rear side of the feedback shell (41), the same stress plate (84) is slidably sleeved on the plurality of fixed slide rods (83), the front side of the stress plate (84) is fixedly connected with a pressure trigger switch (85), a plurality of extrusion springs (86) are fixedly connected between the rear side of the inner wall of the trigger cylinder (82) and the stress plate (84) and are sleeved on the outside of the fixed slide rods (83).

2. The river ecological management floating bed according to claim 1, characterized in that, The rope pulling mechanism (2) comprises a winch (21) fixedly arranged on the upper end of the mounting cylinder (9), the winch (21) is wound with a pulling rope (22), the lower end of the pulling rope (22) penetrates through the upper end of the mounting cylinder (9) through a through hole formed in the upper end of the mounting cylinder (9) and is fixedly connected with a connecting plate (23), one end of the connecting plate (23) is fixedly connected to the outer wall of the water taking detection mechanism (3), the inner wall top of the mounting cylinder (9) is further fixedly connected with a supporting cylinder (24) sleeved on the outside of the pulling rope (22), the lower end of the supporting cylinder (24) is provided in an outward expanding structure and abuts against the upper end of the connecting plate (23).

3. The river ecological management floating bed according to claim 2, characterized in that, The water taking detection mechanism (3) comprises a water taking cylinder (31), openings are formed in the upper and lower ends of the water taking cylinder (31), rotating motors (32) are fixedly connected to the inner walls of the upper and lower ends of the water taking cylinder (31), the output ends of the rotating motors (32) are fixedly connected with sealing baffles (33), the sealing baffles (33) are arranged outside the two ends of the water taking cylinder (31), a plurality of supporting rollers (34) are further fixedly connected to the side wall of the water taking cylinder (31), a counterweight (35) is fixedly arranged on the outer wall of the lower end of the water taking cylinder (31).

4. The river ecological management floating bed according to claim 3, characterized in that, The riverway edge-touching feedback mechanism (6) comprises a positioning rod (61) fixedly connected to the outer wall of the floating bed body (1), one end of the positioning rod (61) movably sleeved with an edge-touching barrel (62), one end of the edge-touching barrel (62) fixedly connected with a contact ball (63), the inner wall bottom of the edge-touching barrel (62) fixedly provided with a signal switch (64), one end of the positioning rod (61) fixedly sleeved with an outwardly expanded ring plate (65) located at the rear side of the edge-touching barrel (62), the rear end of the edge-touching barrel (62) fixedly connected with a plurality of anti-dropping rods (66), one end of the anti-dropping rod (66) penetrating through the side wall of the outwardly expanded ring plate (65) and fixedly connected with an anti-dropping plate (67), and a plurality of compensation springs (68) fixedly connected between the edge-touching barrel (62) and the outwardly expanded ring plate (65) and sleeved outside the anti-dropping rod (66).

5. The river ecological management floating bed according to claim 4, characterized in that, The power moving mechanism (7) comprises a steering motor (71) fixedly connected to the lower end outer wall of the floating bed body (1), and the lower end output end of the steering motor (71) is fixedly connected with a submersible thruster (72), and the steering motor (71) is further provided with a waterproof protective shell.

6. A method for using the river ecological management floating bed according to claim 5, characterized in that, The method comprises the following steps: S1. The submersible thruster (72) provides power for the whole floating bed body (1), so that the floating bed body (1) can move, when the floating bed body (1) moves to the side of the riverway, the contact ball (63) touches the side of the riverway, under the continuous movement of the floating bed body (1), the positioning rod (61) moves relative to the edge-touching barrel (62), when the positioning rod (61) acts on the signal switch (64), the signal switch (64) feeds back a signal to the PLC controller (12), the PLC controller (12) drives the steering motor (71) to drive the submersible thruster (72) to rotate by 90 degrees, so that the whole floating bed body (1) continues to move forward by a distance, and then the steering motor (71) is controlled to make the submersible thruster (72) rotate by 90 degrees, and the straight-line movement in the transverse direction is performed again; S2. The floating bed body (1) stops every time it moves a distance, and when the floating bed body (1) stops, the radar depth finder (10) detects the current water depth and feeds back a signal to the PLC controller (12), which adjusts the sampling operation of the water cylinder (31) at different water depths according to the water depth. The winch (21) cooperates with the pulling rope (22) to realize the adjustment of the relative lowering height of the water cylinder (31), and when the water cylinder (31) is lowered, the upper and lower sealing baffles (33) are driven by the rotary motor (32) to separate from both ends of the water cylinder (31), and then the two ends of the water cylinder (31) are opened, and the water will pass through the water cylinder (31) without residue. When the water cylinder (31) reaches the appropriate sampling depth, the rotary motor (32) is driven again to rotate the sealing baffle (33), so that the sealing baffle (33) seals the two ends of the water cylinder (31), and then stores the water at the current depth in the water cylinder (31). The winch (21) cooperates with the pulling rope (22) to lift the water cylinder (31) upwards, and when the upper end of the water cylinder (31) moves to the through hole at the center of the floating bed body (1), the PLC controller (12) controls the upper rotary motor (32) to drive the sealing baffle (33) to act, and then opens the upper end of the water cylinder (31), and the water cylinder (31) remains in a vertical state under the resistance and support of the side wall counterweight (35) and the support roller (34) Continue to move upwards, so that the ammonia nitrogen sensor (11) is inserted into the water cylinder (31); S3. The driving motor (53) cooperates with the reduction gear box (54) to drive the adjusting screw (52) to rotate, and through the threaded sleeve joint action of the adjusting screw (52) and the driving block (55) makes the arc-shaped pressing block (56) gradually moves, when the arc-shaped pressing block (56) acts on the start switch (57), the start switch (57) performs remote reminding operation through the warning device (58); S4. When the trigger rod (81) still contacts the pressure trigger switch (85) after detection, the pressure trigger switch (85) feeds back a signal to the PLC controller (12), and the PLC controller (12) continues to drive the floating bed body (1) to move through the submersible thruster (72).

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