An algae cleaning device that prevents tipping over

Abstract

This invention discloses an anti-tipping algae removal device, including a protective cover, an ultrasonic component disposed within the protective cover, and a floating box disposed at the bottom of the protective cover. The floating box is equipped with a moving mechanism for moving the floating box. The moving mechanism includes an underwater jet pipe, an air pump and an air delivery pipe located above water, and a drive unit for rotating the jet pipe circumferentially. A correction pipe is installed on the lower side of the jet pipe, and a flow diversion mechanism is provided on the jet pipe. When the jet pipe is tilted, the correction pipe is located below the jet pipe, thereby ejecting gas from the lower side of the jet pipe, providing an upward thrust to the jet pipe. This upward thrust on the tilted jet pipe relative to the horizontal plane, in other words, creates an upward thrust on the opposite side of the tilted algae removal device, assisting in the smooth correction of the algae removal device, reducing the tilting amplitude, and thus reducing the occurrence of tipping.

Description

[0001] This application is based on application number 2024109786579, filed on July 22, 2024, entitled "A Free-Moving Algae Cleaning Device". Technical Field

[0002] This invention relates to the field of environmental protection equipment technology, specifically to an algae cleaning device that prevents tipping over. Background Technology

[0003] With the acceleration of industrialization, large amounts of nutrients such as nitrogen and phosphorus enter natural water bodies, causing eutrophication and stimulating algae growth. Large amounts of algae consume oxygen in the water, disrupt ecosystems, and may release toxins that pollute drinking water sources.

[0004] Traditional methods for controlling cyanobacterial blooms include physical or chemical approaches. To ensure safe and efficient algae removal, ultrasonic algae control is now being used. This involves placing algae removal equipment in the water, utilizing the various effects generated by the ultrasonic waves propagating through the water (such as cavitation, mechanical effects, and free radical oxidation) to destroy the pseudo-vacuoles of microalgal cells, leading to algal apoptosis.

[0005] Chinese patent (patent number CN117569282A) discloses an algae removal device designed to prevent tipping. High-pressure gas is delivered via an air supply pipe to a jet pipe, which then sprays the gas underwater. The reaction force of the water propels the algae removal device. However, because the device's center of gravity is high, and the jet pipe is located below the float, the device is prone to tipping over during rapid movement, especially with increased air pump power. Furthermore, the abundance of algae on lake surfaces means that as the device moves to other areas, it pushes up the algae along its path. This accumulation of algae creates resistance to the device's movement. While the algae's resistance is at the surface, the jet pipe's propulsion is underwater. This means the algae's resistance is relatively higher than the jet pipe, making the device prone to tipping over and sinking during rapid movement. Summary of the Invention

[0006] In order to solve at least one of the technical problems mentioned in the background art, the present invention aims to provide an algae cleaning device that prevents tipping over, thereby reducing the chance of tipping over during the movement of the algae removal device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an anti-tipping algae cleaning device, comprising a protective cover, an ultrasonic component disposed within the protective cover, a warning light and a signal transceiver antenna mounted on the protective cover, and a floating body box disposed at the bottom of the protective cover. The floating body box is equipped with a moving mechanism for moving the floating body box, the moving mechanism comprising an underwater jet pipe, an air pump and an air delivery pipe disposed above the water, the air pump being disposed within the protective cover, wherein the air delivery pipe connects the air pump and the jet pipe, and further comprising a drive unit for driving the jet pipe to rotate circumferentially;

[0008] A correction pipe is installed on the lower side of the jet pipe, and a flow guiding mechanism is provided on the jet pipe. In the initial state, the correction pipe is in a closed state. When the axis of the jet pipe is tilted relative to the horizontal plane, the flow guiding mechanism guides the gas to be ejected from the lower side of the correction pipe.

[0009] The diversion mechanism includes a cylinder fixedly installed on the jet pipe, the axis of the cylinder being perpendicular to the axis of the jet pipe. A sealing cylinder is rotatably installed inside the cylinder. An air exchange hole is opened on the side of the cylinder away from the outlet of the jet pipe. An air guide hole adapted to the air exchange hole is opened on the circumferential side of the sealing cylinder. The lower side of the cylinder is fixedly connected to the correction pipe. An air transmission hole communicating with the correction pipe is opened on the lower side of the sealing cylinder. A horizontal detection mechanism is installed on the axial side of the sealing cylinder. When the axis of the jet pipe is parallel to the horizontal plane, the air exchange hole and the air guide hole are misaligned, and the sealing cylinder blocks the air exchange hole. When the axis of the jet pipe is tilted relative to the horizontal plane, the horizontal detection mechanism drives the sealing cylinder to rotate until the air exchange hole and the air guide hole are connected.

[0010] Furthermore, the horizontal detection mechanism includes an arc-shaped protective shell fixedly installed on the jet pipe, a connecting rod fixedly installed on the side of the sealing cylinder shaft, a transmission rod fixedly installed on the circumferential side of the connecting rod and inside the arc-shaped protective shell, a counterweight fixedly installed on the side of the transmission rod away from the connecting rod, and the transmission rod is perpendicular to the horizontal plane.

[0011] Furthermore, the cylindrical side surface is provided with multiple ventilation holes along the cylindrical axis, and the sealing cylinder side surface is provided with multiple air guide holes spirally. As the rotation angle of the sealing cylinder relative to the cylindrical surface increases, the number of air guide holes and ventilation holes connected increases accordingly.

[0012] Furthermore, a sealing plate is rotatably installed on the inner wall of the correction pipe, and a stop block is fixedly installed on the inner wall of the correction pipe above the sealing plate. An elastic element for driving the sealing plate to abut against the stop block is fixedly installed inside the correction pipe.

[0013] Furthermore, the drive unit includes a first stepper motor disposed within a protective cover, a gear fixedly mounted on the output shaft of the synchronous motor, a gear ring meshing with the gear fixedly mounted on the peripheral side of the air delivery pipe, and the air delivery pipe being fixedly connected to the jet pipe.

[0014] Furthermore, a plug for blocking the outlet is slidably disposed inside the jet pipe and at the outlet. A movable rod is fixedly installed on one side of the plug, and a guide plate is sleeved on the surface of the movable rod. The guide plate is fixedly connected to the inner wall of the jet pipe. A pressure plate is fixedly installed on the side of the movable rod away from the plug. A first spring is fixedly installed between the pressure plate and the guide plate. In the initial state, the plug abuts against the edge of the outlet, and the first spring is in a compressed state.

[0015] Furthermore, the jet pipe includes an outer pipe and multiple inner pipes. The outer pipe is sleeved on the surface of the inner pipe, and adjacent inner pipes are interlocked. Guide units are provided between the outer pipe and the inner pipe, and between adjacent inner pipes, to guide adjacent pipes to slide in a straight line. The side of the inner pipe with the smallest inner diameter is fixedly connected to the air delivery pipe, and the correction pipe is fixedly installed on the outer pipe.

[0016] Furthermore, a gathering hood is fixedly installed on the side of the jet pipe away from the air delivery pipe. The gathering hood is a hollow frustum shape, and air vents are provided on both sides of the gathering hood. The inner diameter of the cross-section of the gathering hood is smaller the further away from the jet pipe.

[0017] Furthermore, the air supply pipe and the jet pipe are connected by an adjustment mechanism. The adjustment mechanism includes a cylindrical housing, the axial side of which is fixedly connected to the axial side of the air supply pipe. There are at least four jet pipes, which are evenly distributed on the periphery of the cylindrical housing. The cylindrical housing has through holes that communicate with the jet pipes. A sealing cover is rotatably installed inside the cylindrical housing. The sealing cover has an air outlet on its side. A second stepper motor is installed on the sealing cover to drive the sealing cover to rotate axially around the cylindrical housing. When the air inlet on the sealing cover communicates with one of the through holes, the sealing cover seals the other through holes.

[0018] Furthermore, three one-way air inlet valves are fixedly installed on the inner wall of the sealing cover, and a transmission hole connected to the one-way air inlet valve is opened on the side wall of the sealing cover. When the air outlet is connected to one of the through holes, the three transmission holes are also connected to the other three through holes.

[0019] Furthermore, the one-way intake valve includes a valve stem fixedly installed on the inner wall of the sealing cover, a valve cover is installed on one side of the valve stem, a positioning post is fixedly installed on the side of the valve cover near the valve stem, a retaining ring is fixedly installed on the inner wall of the valve stem, and a second spring is fixedly installed between the retaining ring and the positioning post. In the initial state, the valve cover abuts against the side wall of the valve stem, and the second spring is in a stretched state.

[0020] Furthermore, the float box has a through hole for the air supply pipe to pass through, and multiple ball bearings for supporting the air supply pipe are installed on the circumferential side of the air supply pipe and on the inner wall of the through hole.

[0021] Furthermore, a positioning mechanism is installed on the protective cover. The positioning mechanism includes a winding machine, a pull rope, and a positioning anchor. One end of the pull rope is wound on the winding machine, and the other end is fixedly installed on the positioning anchor. The winding machine is electrically connected to the controller.

[0022] Furthermore, it also includes a monitoring component installed at the bottom of the floating tank, which includes a chlorophyll a sensing electrode and a blue-green algae sensing electrode fixedly installed on the floating tank.

[0023] Furthermore, an electrode protective cover is installed on the outside of the monitoring component. The electrode protective cover is fixedly installed on the float box, and multiple water inlet holes are opened on the surface of the electrode protective cover.

[0024] Furthermore, a controller is also installed inside the protective cover, and the warning light, signal transceiver antenna, air pump, first stepper motor, second stepper motor, winding machine, chlorophyll a sensing electrode and blue-green algae sensing electrode are all electrically connected to the controller.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: During the rapid movement of the algae removal device while the jet pipe is spraying a large amount of gas, the algae removal device may tilt, thereby changing the jet direction of the jet pipe. As a result, the axis of the jet pipe is tilted relative to the horizontal plane. At this time, the horizontal detection mechanism drives the sealing cylinder to rotate, connecting the air guide hole on the sealing cylinder with the air exchange hole on the cylinder. Thus, some of the high-pressure gas from the jet pipe will reach the correction pipe through the air exchange hole, air guide hole, and air transmission hole. Since the correction pipe is located below the jet pipe, gas will be ejected from the lower side of the jet pipe, thereby providing an upward thrust to the jet pipe. This upward thrust causes the jet pipe, which is tilted relative to the horizontal plane, to experience an upward thrust on the opposite side of the tilted algae removal device, assisting in the smooth correction of the algae removal device, reducing the tilting amplitude, and thus reducing the occurrence of tipping over. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a full sectional view of the overall structure of the present invention;

[0028] Figure 3 For the present invention in Figure 2 Enlarged view of a portion of the structure at point A;

[0029] Figure 4This is a schematic diagram of the regulating mechanism and jet pipe structure of the present invention;

[0030] Figure 5 This is a cross-sectional view of the jet pipe structure of the present invention;

[0031] Figure 6 This is a cross-sectional view of the regulating mechanism and jet pipe structure of the present invention;

[0032] Figure 7 For the present invention in Figure 4 Schematic diagram of the structural method at point B;

[0033] Figure 8 This is a top view of the air delivery mechanism and drive unit structure of the present invention;

[0034] Figure 9 This is a cross-sectional view of the motor protective cover structure of the present invention;

[0035] Figure 10 This is a schematic diagram of the jet pipe and horizontal detection mechanism of the present invention;

[0036] Figure 11 This is a first-view sectional view of the jet pipe and cylindrical structure of the present invention;

[0037] Figure 12 This is a second-view sectional view of the jet pipe and cylindrical structure of the present invention;

[0038] Figure 13 This is an unfolded view of the cylinder and sealing cylinder of the present invention.

[0039] In the diagram: 1. Protective cover; 2. Ultrasonic component; 3. Float box; 4. Moving mechanism; 41. Air pump; 42. Air delivery pipe; 43. Jet pipe; 431. Outer pipe; 432. Inner pipe; 44. Drive unit; 441. First stepper motor; 442. Gear; 443. Gear ring; 45. Plug; 46. Moving rod; 47. Guide plate; 48. Pressure plate; 49. First spring; 410. Guide rod; 411. Insertion hole; 412. Converging cover; 5. Adjusting mechanism; 51. Cylindrical outer shell; 52. Perforation; 53. Sealing cover; 54. Air outlet; 55. Second stepper motor; 56. One-way air intake valve; 561. Valve column; 562. Valve cover; 563. Positioning column; 564. Retaining ring; 565. Second spring; 566. Transmission hole; 6. Through hole; 7. Ball bearing; 8. Positioning mechanism; 81. Winding machine; 82. Pull rope; 83. Positioning anchor; 9. Controller; 10. Warning light; 11. Signal transceiver antenna; 12. GPS module; 13. Chlorophyll a sensing electrode; 14. Blue-green algae sensing electrode; 15. Electrode protective cover; 16. Water inlet; 17. Solar panel; 18. Cylinder; 19. Sealing cylinder; 20. Ventilation hole; 21. Air guide hole; 22. Correction pipe; 23. Horizontal detection mechanism; 231. Arc-shaped protective shell; 232. Connecting rod; 233. Transmission rod; 234. Counterweight; 24. Sealing plate; 25. Stop block; 26. Elastic element; 27. Air transmission hole. Detailed Implementation

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below. 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.

[0041] Please see Figure 1 This embodiment provides an algae cleaning device to prevent tipping over, including a protective cover 1, an algae removal mechanism installed on the protective cover 1, the algae removal mechanism including an ultrasonic component 2 installed inside the protective cover 1, a warning light 10 and a signal transceiver antenna 11 installed on the protective cover 1, a floating body box 3 installed at the bottom of the protective cover 1, and a controller 9 installed inside the protective cover 1.

[0042] The ultrasonic component 2 includes a PLC, an ultrasonic controller (model: Hangzhou Ruili Ultrasonic Technology Co., Ltd. RLC-UC100), a data acquisition and transmission module, and an ultrasonic transducer (model: Hangzhou Ruili Ultrasonic Technology Co., Ltd. RLC-UC100, with an underwater operating distance of approximately 150~200m).

[0043] In addition, the algae removal device in this embodiment is equipped with a GPS module 12, which is used to determine the current location of the algae removal device in real time, so as to locate and track the device and make it convenient to know the driving position and distance from the target water area at any time.

[0044] When algae removal is required in rivers or lakes, the algae removal device is placed in the corresponding algae removal area. Due to the presence of the floating box 3, the protective cover 1 floats on the water surface and does not sink to the bottom, facilitating signal reception and transmission by the signal transceiver antenna 11. After receiving the signal, the signal transceiver antenna 11 transmits the electrical signal to the controller 9. The controller 9 then transmits the electrical signal to the ultrasonic component 2, which emits ultrasonic waves to remove algae from the target water area.

[0045] Please see Figure 1 and Figure 9 To facilitate monitoring of algae density in the target water area, a monitoring component is also included, installed at the bottom of the floating tank 3. This component comprises a chlorophyll a sensing electrode 13 (model: Hangzhou Naqing Optoelectronics Technology Co., Ltd. OSA-ChlA) and a cyanobacterial algae sensing electrode 14 (model: Hangzhou Naqing Optoelectronics Technology Co., Ltd. OSA-Cyano), both fixedly mounted on the floating tank 3. In this embodiment, the chlorophyll a sensing electrode 13 and the cyanobacterial algae sensing electrode 14 are submerged below the water surface. The chlorophyll a sensing electrode 13 monitors the chlorophyll a concentration in the target water in real time, while the cyanobacterial algae sensing electrode 14 monitors the algae density in the target water in real time. When the algae density in the target water area drops to a set value, the monitoring component sends an electrical signal to the controller 9. The controller 9 then controls the signal transceiver antenna 11 to emit a signal, prompting staff to promptly replace the algae removal device with the water area to be cleaned. Simultaneously, the monitoring component can also monitor the algae density within the current water area, providing real-time information on the current algae density.

[0046] Please see Figure 1 and Figure 9 To reduce the impact and damage of aquatic debris (such as fish, driftwood, etc.) on the monitoring component, an electrode protective cover 15 is installed on the outside of the monitoring component. The electrode protective cover 15 is fixedly mounted on the float box 3, and multiple water inlet holes 16 are opened on the surface of the electrode protective cover 15. Water from the target water area can flow through the water inlet holes 16 to the monitoring component for detection, thereby reducing the impact and damage of aquatic animals or debris on the monitoring component.

[0047] After the algae removal device has cleared algae from one area, the water area needs to be changed. However, because rivers or lakes cover a large area, it is not only time-consuming and labor-intensive to move them by boat and manpower, but the movement of boats can also cause some pollution to the cleaned water area.

[0048] Please see Figure 1 and Figure 2To solve the aforementioned technical problems, a moving mechanism 4 is installed on the float box 3 to move the float box 3. The moving mechanism 4 includes an underwater jet pipe 43, an air pump 41 above water, and an air supply pipe 42, wherein the air supply pipe 42 connects the air pump 41 and the jet pipe 43. It also includes a drive unit 44 that drives the jet pipe 43 to rotate circumferentially, wherein the circumferential rotation is approximately horizontal. The air pump 41 is electrically connected to the controller 9, and the drive unit 44 is also electrically connected to the controller 9. The air pump 41 is preferably an electric air pump, which has the functions of inflation and deflation.

[0049] When the algae density in the target water area drops to the set value, the monitoring component sends an electrical signal to the controller 9. The controller 9 controls the signal transceiver antenna 11 to send a signal to prompt the staff to replace the algae removal device with the water area to be cleaned in time. The staff sends a signal, the signal transceiver antenna 11 receives the signal, and the electrical signal is transmitted to the controller 9. The controller 9 controls the air pump 41 to start working, thereby delivering gas to the outside. The high-pressure gas is delivered to the jet pipe 43 through the air delivery pipe 42. Since the jet pipe 43 is located underwater, the jet pipe 43 will spray gas underwater. The direction of the sprayed gas is horizontal. Under the reaction force of the water, the jet pipe 43 will be pushed to move in the opposite direction of the jet. Since the jet pipe 43 is installed on the float box 3, the float box 3 and the protective cover 1 of the float box 3 will move together on the water, thereby realizing the movement of the algae removal device.

[0050] During the movement of the algae removal device, due to the instability of movement in the water flow, it is easy to deviate from the route when it reaches the target water area. Therefore, when the personnel on the shore observe that the algae removal device has deviated from the route, or when the system automatically detects the deviation based on the data transmitted by the GPS module 12, it can continuously transmit signals to the signal transceiver antenna 11. The signal transceiver antenna 11 transmits electrical signals to the controller 9. The controller 9 controls the drive unit 44, and the drive unit 44 controls the rotation of the jet pipe 43, thereby adjusting the jet direction of the jet pipe 43 in the water, thus adjusting the movement path of the entire algae removal device to reach the designated area.

[0051] Because the lake area is large, and the radiation treatment range of this equipment is 250m-400m around the lake, after the current water area is treated in two to three days, the algae removal device needs to be moved to an adjacent or more distant water area. Due to the long distance, the power of the air pump is often increased in the early stage to increase the jet flow rate and speed up the movement of the algae removal device, thereby increasing efficiency. When approaching the target water area, the movement speed of the algae removal device will be slowed down to make it easier to stop at the designated location.

[0052] Because the air pump 41, ultrasonic component 2, protective cover 1, and other equipment are located on the upper side of the floating box 3, and the floating box 3 is a hollow body, the center of gravity of the entire algae removal device is high. The jet pipe 43 is located below the floating box 3. Therefore, when the power of the air pump 41 increases and the algae removal device moves rapidly, the algae removal device is prone to tilting. At the same time, there is a lot of algae on the lake surface. When the algae removal device moves to other water areas, it will push the algae in its movement path. As the pushed algae accumulate, it will create an obstruction force in front of the algae removal device. Moreover, the obstruction force of the algae is located on the water surface. That is to say, the resistance of the algae to the algae removal device is relatively high relative to the jet pipe 43. During the rapid movement and tilting of the algae removal device, the jet direction of the jet pipe 43 will also change, which makes the algae removal device prone to overturning and sinking into the water.

[0053] Please see Figure 10 and Figure 11 To solve the aforementioned technical problems, a cylinder 18 is fixedly installed on the jet pipe 43, with the axis of the cylinder 18 perpendicular to the axis of the jet pipe 43. A sealing cylinder 19 is rotatably installed inside the cylinder 18. An air exchange hole 20 is opened on the side of the cylinder 18 away from the outlet of the jet pipe 43. An air guide hole 21 adapted to the air exchange hole 20 is opened on the circumferential side of the sealing cylinder 19. A correction pipe 22 extending to the lower side of the jet pipe 43 is fixedly installed on the lower side of the cylinder 18. An air transmission hole 27 connected to the correction pipe 22 is opened on the lower side of the sealing cylinder 19. A horizontal detection mechanism 23 is installed on the axial side of the sealing cylinder 19. When the axis of the jet pipe 43 is parallel to the horizontal plane, the air exchange hole 20 and the air guide hole 21 are misaligned, and the sealing cylinder 19 blocks the air exchange hole 20. When the axis of the jet pipe 43 is tilted relative to the horizontal plane, the horizontal detection mechanism 23 drives the sealing cylinder 19 to rotate, and the air exchange hole 20 and the air guide hole 21 are connected.

[0054] During the rapid movement of the algae removal device as the jet pipe 43 sprays a large amount of gas, the device tilts upwards, causing a change in the jet direction. This results in the axis of the jet pipe 43 being tilted relative to the horizontal plane. At this time, the horizontal detection mechanism 23 drives the sealing cylinder 19 to rotate, connecting the air guide hole 21 on the sealing cylinder 19 with the air exchange hole 20 on the cylinder 18. As a result, some of the high-pressure gas from the jet pipe 43 passes through the air exchange hole 20, the air guide hole 21, and the air transmission hole 27 to reach the correction pipe 22. Since the correction pipe 22 is located below the jet pipe 43, gas will be ejected from the lower side of the jet pipe 43, providing an upward thrust to the jet pipe 43. This upward thrust causes the tilted jet pipe 43 to experience an upward thrust on the opposite side of the tilted algae removal device, assisting in the smooth correction of the device and reducing the tilting amplitude.

[0055] Please see Figure 11 and Figure 12The horizontal detection mechanism 23 includes an arc-shaped protective shell 231 fixedly installed on the jet pipe 43, a connecting rod 232 fixedly installed on the side of the sealing cylinder 19, a transmission rod 233 fixedly installed on the circumferential side of the connecting rod 232 and inside the arc-shaped protective shell 231, a counterweight 234 fixedly installed on the side of the transmission rod 233 away from the connecting rod 232, and the transmission rod 233 is perpendicular to the horizontal plane.

[0056] When the algae removal device tilts up, the axis of the jet pipe 43 is tilted relative to the horizontal plane. Because the counterweight 234 is under the action of gravity, it drives the transmission rod 233 to always remain vertically downward. Thus, during the process of the jet pipe 43 tilting relative to the horizontal plane, the transmission rod 233 drives the sealing cylinder 19 to rotate through the connecting rod 232, so that the air guide hole 21 on the sealing cylinder 19 is connected to the air exchange hole 20 on the cylinder 18.

[0057] Because the jet speed of the jet pipe 43 is different, or the resistance encountered by the algae removal device on the water surface is different, the tilt angle of the algae removal device when it moves is also different. If the tilt angle of the algae removal device is high and the air flow rate of the correction pipe 22 is low, the correction effect on the algae removal device is poor. If the tilt angle of the algae removal device is low and the air flow rate of the correction pipe 22 is high, the algae removal device is overcorrected, resulting in large shaking and poor movement stability when the algae removal device moves.

[0058] Please see Figure 10 and Figure 13 To solve the above technical problems, multiple ventilation holes 20 are opened on the circumferential side of the cylinder 18 along the axis of the cylinder 18, and multiple air guide holes 21 are spirally opened on the circumferential side of the sealing cylinder 19. As the rotation angle of the sealing cylinder 19 relative to the cylinder 18 increases, the number of air guide holes 21 connected to ventilation holes 20 increases.

[0059] As the tilt angle of the algae removal device gradually increases, the rotation angle of the sealing cylinder 19 relative to the cylinder 18 driven by the horizontal detection mechanism 23 also increases. This results in an increase in the number of air guide holes 21 and air exchange holes 20 connected on the sealing cylinder 19. Consequently, the amount of airflow in the jet pipe 43 entering the correction pipe 22 through the air exchange holes 20, air guide holes 21, and air transmission holes 27 also increases. This increases the upward thrust of water on the jet pipe 43. As a result, the greater the tilt angle of the algae removal device, the greater the upward thrust it receives, thus improving the stability of the algae removal device.

[0060] Please see Figure 11 and Figure 12 To reduce backflow of water from the straightening pipe 22, a sealing plate 24 is rotatably installed on the inner wall of the straightening pipe 22, and a stop block 25 is fixedly installed on the inner wall of the straightening pipe 22 above the sealing plate 24. An elastic element 26, which is a spiral spring, is fixedly installed inside the straightening pipe 22 to drive the sealing plate 24 to abut against the stop block 25.

[0061] When there is no gas flow in the straightening pipe 22, the sealing plate 24 abuts against the stop block 25 under the action of the elastic element 26, thereby sealing the straightening pipe 22 and preventing external water from entering the straightening pipe 22. When air is introduced into the straightening pipe 22, the air pressure pushes open the sealing plate 24, so that the airflow is sprayed into the water through the lower side of the straightening pipe 22.

[0062] Because the jet pipe 43 is located in water, water will enter the interior of the jet pipe 43 through the jet holes. Due to hydraulic balance, water may also be present in part of the air delivery pipe 42. In untreated waters, there is a large amount of algae in the water, and algae or impurities in the water may enter the jet pipe 43 and the air delivery pipe 42 with the water flow, which may easily cause blockage or partial blockage of the jet pipe 43 and the air delivery pipe 42, affecting the flow of gas, thereby affecting the moving efficiency of the algae removal device, and even causing damage to the moving mechanism 4.

[0063] Please see Figure 1 , Figure 2 and Figure 5 To solve the aforementioned technical problems, a plug 45 for blocking the outlet is slidably disposed inside the jet pipe 43 and located at the outlet. The plug 45 is frustoconical in shape. A moving rod 46 is fixedly installed on one side of the plug 45. A guide plate 47 is sleeved on the surface of the moving rod 46. The guide plate 47 is fixedly connected to the inner wall of the jet pipe 43. A pressure plate 48 is fixedly installed on the side of the moving rod 46 away from the plug 45. A first spring 49 is fixedly installed between the pressure plate 48 and the guide plate 47. In the initial state, the plug 45 abuts against the edge of the outlet, and the first spring 49 is in a compressed state.

[0064] In the initial state, under the elastic force of the first spring 49, the plug 45 abuts against the edge of the outlet, thereby blocking the outlet and preventing water from flowing into the jet pipe 43. When the algae removal device needs to be moved, the air pump 41 starts to work and delivers high-pressure gas to the jet pipe 43 through the air supply pipe 42. Although the outlet of the jet pipe 43 is blocked by the plug 45, as the high-pressure gas is continuously delivered to the jet pipe 43, the pressure inside the jet pipe 43 increases, which in turn pushes the plug 45 to move and separate from the edge of the outlet. At this time, the gas in the jet pipe 43 will be ejected through the gap between the plug 45 and the outlet, thereby realizing the movement of the algae removal device.

[0065] The movement of the plug 45 will cause the moving rod 46 to move together. The movement of the moving rod 46 will cause the pressure plate 48 to squeeze the first spring 49, increasing the elastic potential energy accumulated inside the first spring 49. When the air supply pipe 42 stops supplying gas, the pressure inside the jet pipe 43 gradually decreases. Under the elastic force of the first spring 49, the plug 45 gradually approaches the edge of the outlet of the jet pipe 43 until the plug 45 comes into contact with the edge of the outlet of the jet pipe 43, isolating the external water from the inside of the jet pipe 43 and preventing water from flowing back into the jet pipe 43.

[0066] It should be noted that the first spring 49 is prone to radial bending when compressed, causing the release of its internal elastic potential energy. Excessive entanglement with aquatic plants and excessive surface adhesion hinder recovery and result in a large footprint, making placement inconvenient.

[0067] Please see Figure 5 To solve the above technical problems, a guide rod 410 passing through the first spring 49 is fixedly installed on one side of the pressure plate 48, and an insertion hole 411 for the guide rod 410 to pass through is opened on the guide plate 47.

[0068] Since the guide rod 410 passes through the first spring 49, if radial bending occurs during the compression of the first spring 49, the first spring 49 will come into contact with the guide rod 410, thereby limiting the bending of the first spring 49 and ensuring that elastic potential energy is accumulated inside the first spring 49.

[0069] When the gas plug 45 separates from the outlet edge and is ejected outward through the gap between the gas plug 45 and the outlet, the gas will be dispersed and ejected from around the plug 45. As a result, after the gas comes into contact with the water, some of the water's reaction force is consumed, which increases the gas ejection pressure and the water's reaction force on the algae removal device.

[0070] Please see Figure 5 A gathering hood 412 is fixedly installed on the side of the jet pipe 43 away from the air supply pipe 42. The gathering hood 412 is a hollow frustum shape. Ventilation holes are opened on both sides of the gathering hood 412. The inner diameter of the cross-section of the gathering hood 412 is smaller the further away from the jet pipe 43 it is.

[0071] When gas is ejected through the gap between the plug 45 and the outlet of the jet pipe 43, the gas is ejected at an angle relative to the axis of the plug 45 because the plug 45 is frustum-shaped. When it contacts the inner wall of the collecting hood 412, the gas is ejected at a smaller inner diameter as it moves away from the jet pipe 43. As a result, the gas ejected into the collecting hood 412 changes its flow direction when it comes into contact with the inner wall of the collecting hood 412 and moves toward the center of the collecting hood 412. Then, it is ejected into the water through the vent on the collecting hood 412, thereby increasing the intensity of the gas ejection.

[0072] Please see Figure 2and Figure 3 The drive unit 44 includes a first stepper motor 441 disposed inside the protective cover 1. A gear 442 is fixedly mounted on the output shaft of the first stepper motor 441. A gear ring 443 that meshes with the gear 442 is fixedly mounted on the circumferential side of the air supply pipe 42. The air supply pipe 42 is fixedly connected to the air pump 41 and the air jet pipe 43. The first stepper motor 441 is electrically connected to the controller 9. Both the air supply pipe 42 and the air pump 41 are rotatably disposed with respect to the float box 3 and the protective cover 1.

[0073] When it is necessary to adjust the movement trajectory of the algae removal device, the operator sends a signal which is received by the signal transceiver antenna 11. The signal transceiver antenna 11 transmits the signal to the controller 9. The controller 9 controls the first stepper motor 441 to drive the gear 442 to rotate. The gear 442 drives the gear ring 443 to rotate. The gear ring 443 drives the air delivery pipe 42 to rotate, which in turn drives the jet pipe 43 to rotate, thereby adjusting the jet direction and thus adjusting the movement trajectory of the algae removal device.

[0074] To further adjust the center of gravity of the algae removal device and improve its stability during movement, the jet duct 43 includes an outer pipe 431 and multiple inner pipes 432 (only one inner pipe 432 is shown in the attached drawing). The outer pipe 431 is fitted onto the surface of the inner pipes 432, and adjacent inner pipes 432 are interlocked. Guide units are provided between the outer pipe 431 and the inner pipes 432, and between adjacent inner pipes 432, to guide the adjacent pipes to slide in a straight line (that is, a guide unit is provided between the outer pipe 431 and the inner pipe 432 with the largest inner diameter, and a guide unit is provided between two adjacent inner pipes 432). The inner pipe 432 with the smallest inner diameter is fixedly connected to the air delivery duct 42 on one side, and the correction duct 22 is fixedly installed on the outer pipe 431.

[0075] The guiding unit includes a guide block and a guide groove. Between adjacent pipes, the guide block is fixedly installed on the inner wall of the pipe with a larger inner diameter, and the guide groove is opened on the outer side of the pipe with a smaller inner diameter. The guide block is slidably disposed in the guide groove.

[0076] Gas from the air pump 41 is delivered to the inner tube 432, which has the smallest inner diameter, through the air delivery pipe 42. This increases the internal pressure of the jet pipe 43. At this time, because the plug 45 blocks the jet outlet of the jet pipe 43, that is, the plug 45 blocks the jet outlet of the outer tube 431, the outer tube 431 will gradually slide along the axis of the inner tube 432 as the internal pressure gradually increases. Adjacent inner tubes 432 also slide, and under the guidance of the guide unit, they slide in a straight line, thereby increasing the internal space of the jet pipe 43. This continues until the outer tube 431 and the inner tube 432 have moved to their maximum displacement, that is, when the jet pipe 43 reaches its maximum displacement. When extended to its maximum length, since the outer tube 431 and inner tube 432 can no longer be extended, the internal pressure of the jet pipe 43 gradually increases until it pushes open the plug 45, thereby realizing the jet operation of the jet pipe 43. The extension of the jet pipe 43 increases the contact area between the bottom of the algae removal device and the water, raises the bottom range, lowers the center of gravity of the algae removal device, and makes the movement of the algae removal device more stable. On the other hand, the extension of the length of the jet pipe 43 increases its internal space, which will increase the buoyancy of the algae removal device and make the algae removal device float upward when moving, reducing the water splashed during movement from flowing into the protective cover 1 and damaging the equipment.

[0077] When the algae removal device is moved to the designated position, air is drawn out by the air pump 41. During the air pumping process, the pressure inside the jet pipe 43 decreases, causing the plug 45 to block the jet nozzle again. At this time, the jet pipe 43 has difficulty absorbing gas from the outside, and its internal pressure will gradually decrease. As a result, the outer tube 431 and the inner tube 432 will slide relative to each other again, and the jet pipe 43 will contract until it returns to its initial position. This reduces the length of the jet pipe 43, thereby reducing the surface area of ​​algae in the lake to adhere to the jet pipe 43, making it easier to clean. On the other hand, it facilitates the recovery of the algae removal device, because if the bottom jet pipe 43 is too long and covers too wide, it will be inconvenient to retrieve and transport, and it will also occupy a large area when placed.

[0078] As the air jet pipe 43 sprays gas to move the algae removal device, it continuously sprays gas into the water. As the drive unit 44 rotates the air jet pipe 43, the water resistance is relatively large, and the float box 3 is also floating on the water. When the air jet pipe 43 rotates relative to the float box 3, the reaction force of the air jet pipe 43 on the float box 3 will also cause the float box 3 to be subjected to a rotational torque, causing the float box 3 to rotate on the water. Therefore, if the rotation angle of the air jet pipe 43 is too large or the speed is too fast, the float box 3 will also rotate relative to the water surface, resulting in the actual rotation angle of the air jet pipe 43 relative to the float box 3 being smaller than the predicted angle, which can easily lead to errors in trajectory correction.

[0079] On the other hand, during the trajectory correction process, the jet pipe 43 is constantly jetting air outwards, resulting in a large arc when correcting the movement trajectory of the algae removal device, leading to an excessively large correction range and a long correction time.

[0080] Please see Figures 4-6 To solve the aforementioned technical problems, an adjustment mechanism 5 connects the air supply pipe 42 and the jet pipe 43. The adjustment mechanism 5 includes a cylindrical housing 51, the axial side of which is fixedly connected to the axial side of the air supply pipe 42. There are at least four jet pipes 43, which are evenly distributed around the periphery of the cylindrical housing 51. The cylindrical housing 51 has through holes 52 that communicate with the jet pipes 43. A sealing cover 53 is rotatably installed inside the cylindrical housing 51. The sealing cover 53 is a cylinder with an open top. An air outlet 54 is provided on the periphery of the sealing cover 53. A second stepper motor 55 is installed on the sealing cover 53 to drive the sealing cover 53 to rotate axially around the cylindrical housing 51. When the air outlet 54 on the sealing cover 53 communicates with one of the through holes 52, the sealing cover 53 seals the other through holes 52.

[0081] When it is necessary to correct the movement trajectory of the algae removal device, if the offset angle is too large or the movement displacement is too large and it needs to be returned, a signal can be sent to the signal transceiver antenna 11. The signal transceiver antenna 11 receives the signal and transmits an electrical signal to the controller 9. The controller 9 controls the second stepper motor 55 to drive the sealing cover 53 to rotate. According to the judgment of the staff, the air outlet 54 on the sealing cover 53 is rotated to the position of the other jet pipe 43 with a smaller adjustment angle, so that jet is sprayed through another jet pipe 43. Therefore, it is not necessary to rotate the jet pipe 43 by a large angle, which can change the jet direction in the water and adjust the movement trajectory of the algae removal device more quickly.

[0082] A more specific working method is, for example, when the algae removal device moves too far and exceeds the target position, it is only necessary to rotate the second stepper motor 55 by 180 degrees, that is, to rotate the air outlet 54 on the sealing cover 53 to the position of the air jet pipe 43 opposite to the current air jet pipe 43, so that the air jet direction in the water is directly opposite. Since the sealing cover 53 rotates inside the cylindrical shell 51, it is not affected by water resistance, and the current method consumes less energy.

[0083] If a slight trajectory deviation of 10 to 45 degrees occurs, the angle of the jet pipe 43 that is currently jetting can be adjusted by the drive unit 44, making it more flexible and accelerating the correction rate.

[0084] As the algae removal device moves through the lake, the water flow may cause it to drift, prompting a rapid change in the control of the device via other jet pipes 43. This involves connecting the vent 54 on the sealing cover 53 to other perforations 52. At this point, the connected jet pipe 43 will extend again and spray air. However, when the jet pipe 43 is retracted, because the vent 54 on the sealing cover 53 is only connected to one of the perforations 52, the originally extended jet pipe 43 may not retract and will remain extended.

[0085] To solve the aforementioned technical problems, three one-way air intake valves 56 are fixedly installed on the inner wall of the sealing cover 53. A transmission hole 566, connected to the one-way air intake valves 56, is opened on the side wall of the sealing cover 53. When the air outlet 54 is connected to one of the through holes 52, the three transmission holes 566 are also connected to the other three through holes 52; that is, one transmission hole 566 corresponds to one through hole 52. When the air pump 41 draws air, the one-way air intake valves 56 open, allowing the air pump 41 to draw air from all the jet pipes 43, enabling each jet pipe 43 to contract.

[0086] Please see Figure 4 and Figure 7 The one-way intake valve 56 includes a valve stem 561 fixedly installed on the inner wall of the sealing cover 53. A valve cover 562 is installed on one side of the valve stem 561. A positioning post 563 is fixedly installed on the side of the valve cover 562 near the valve stem 561. A retaining ring 564 is fixedly installed on the inner wall of the valve stem 561. A second spring 565 is fixedly installed between the retaining ring 564 and the positioning post 563. In the initial state, the valve cover 562 abuts against the side wall of the valve stem 561, and the second spring 565 is in a stretched state.

[0087] When the sealing cover 53 is in a negative pressure state, the valve cover 562 is under negative pressure and drives the positioning column 563 to overcome the elastic force of the second spring 565 and move away from the valve column 561, thereby opening the seal on the valve column 561. This allows the gas in the jet pipe 43 to be absorbed out through the perforation 52, the transmission hole 566 and the valve column 561, thus completing the contraction of the jet pipe 43.

[0088] Please see Figure 2 and Figure 3 The float box 3 has a through hole 6 for the air supply pipe 42 to pass through. Multiple ball bearings 7 are installed on the periphery of the air supply pipe 42 and on the inner wall of the through hole 6 to support the air supply pipe 43. The ball bearings 7 reduce the friction between the air supply pipe 42 and the through hole 6 and provide support for the air supply pipe 42.

[0089] Please see Figure 2 and Figure 8The protective cover 1 is equipped with a positioning mechanism 8, which includes a winding machine 81, a pull rope 82 and a positioning anchor 83. One end of the pull rope 82 is wound on the winding machine 81, and the other end is fixedly installed on the positioning anchor 83. The winding machine 81 is electrically connected to the controller 9.

[0090] When the algae removal device is moved to the corresponding water area, the operator sends a signal to the signal transceiver antenna 11. The signal transceiver antenna 11 receives the signal and transmits an electrical signal to the controller 9. The controller 9 controls the winding machine 81 to release the pull rope 82, causing the positioning anchor 83 to sink to the bottom of the water, thereby positioning the algae removal device. When it is necessary to move the algae removal device, the winding machine winds up the pull rope 82, pulls up the positioning anchor 83, and then moves the algae removal device.

[0091] Please see Figure 1 To ensure sufficient power and self-sufficiency for the algae removal equipment, a solar panel 17 is installed on the protective cover 1, and a storage battery is installed inside the protective cover 1. The storage battery is connected to the solar panel 17 by wires, and the storage battery provides power to the controller 9.

[0092] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. An anti-tipping algae cleaning device, comprising a protective cover (1), wherein an algae removal mechanism is installed inside the protective cover (1), and a floating box (3) disposed at the bottom of the protective cover (1), characterized in that, The floating body box (3) is equipped with a moving mechanism (4) for moving the floating body box (3) on the water surface. The moving mechanism (4) includes an underwater jet pipe (43), an air pump (41) on the water surface, and an air delivery pipe (42). It also includes a drive unit (44) for driving the jet pipe (43) to rotate circumferentially. A correction pipe (22) is installed on the lower side of the jet pipe (43). A flow guide mechanism is provided on the jet pipe (43). In the initial state, the correction pipe (22) is in a closed state. When the axis of the jet pipe (43) is tilted relative to the horizontal plane, the flow guide mechanism guides the gas to be ejected from the lower side of the correction pipe (22). The drainage mechanism includes a cylinder (18) fixedly installed on the jet pipe (43), a sealing cylinder (19) rotatably installed inside the cylinder (18), an air exchange hole (20) is provided on the side of the cylinder (18) away from the outlet of the jet pipe (43), an air guide hole (21) adapted to the air exchange hole (20) is provided on the circumferential side of the sealing cylinder (19), the lower side of the cylinder (18) is fixedly connected to the correction pipe (22), an air transmission hole (27) connected to the correction pipe (22) is provided on the lower side of the sealing cylinder (19), and a horizontal detection mechanism (23) for driving the sealing cylinder (19) to rotate is installed on the axial side of the sealing cylinder (19). The protective cover (1) is equipped with a positioning mechanism (8), which includes a winding machine (81), a pull rope (82) and a positioning anchor (83). One end of the pull rope (82) is wound on the winding machine (81), and the other end is fixedly installed on the positioning anchor (83).

2. The anti-tipping algae cleaning device according to claim 1, characterized in that, The horizontal detection mechanism (23) includes an arc-shaped protective shell (231) fixedly installed on the jet pipe (43), a connecting rod (232) fixedly installed on the axial side of the sealing cylinder (19), a transmission rod (233) fixedly installed on the circumferential side of the connecting rod (232) and inside the arc-shaped protective shell (231), a counterweight (234) fixedly installed on the side of the transmission rod (233) away from the connecting rod (232), and the transmission rod (233) is perpendicular to the horizontal plane.

3. The anti-tipping algae cleaning device according to claim 1, characterized in that, A sealing plate (24) is rotatably installed on the inner wall of the correction pipe (22), and a stop block (25) is fixedly installed on the inner wall of the correction pipe (22) and above the sealing plate (24). An elastic element (26) for driving the sealing plate (24) to abut against the stop block (25) is fixedly installed inside the correction pipe (22).

4. The anti-tipping algae cleaning device according to claim 3, characterized in that, Inside the jet pipe (43) and at the outlet, a plug (45) for blocking the outlet is slidably disposed. A moving rod (46) is fixedly installed on one side of the plug (45). A guide plate (47) is sleeved on the surface of the moving rod (46). The guide plate (47) is fixedly connected to the inner wall of the jet pipe (43). A pressure plate (48) is fixedly installed on the side of the moving rod (46) away from the plug (45). A first spring (49) is fixedly installed between the pressure plate (48) and the guide plate (47). In the initial state, the plug (45) abuts against the edge of the outlet, and the first spring (49) is in a compressed state.

5. The anti-tipping algae cleaning device according to claim 4, characterized in that, The jet pipe (43) includes an outer pipe (431) and multiple inner pipes (432). The outer pipe (431) is sleeved on the surface of the inner pipe (432). Adjacent inner pipes (432) are sleeved on each other. A guide unit is provided between the outer pipe (431) and the inner pipe (432) and between adjacent inner pipes (432) to guide the adjacent pipes to slide in a straight line. The side of the inner pipe (432) with the smallest inner diameter is fixedly connected to the air delivery pipe (42). The correction pipe (22) is fixedly installed on the outer pipe (431).

6. The anti-tipping algae cleaning device according to claim 5, characterized in that, The air supply pipe (42) and the jet pipe (43) are connected by an adjustment mechanism (5). The adjustment mechanism (5) includes a cylindrical shell (51). The axial side of the cylindrical shell (51) is fixedly connected to the axial side of the air supply pipe (42). There are at least four jet pipes (43). The four jet pipes (43) are evenly distributed on the circumference of the cylindrical shell (51). The cylindrical shell (51) is provided with a through hole (52) that communicates with the jet pipe (43). A sealing cover (53) is rotatably installed inside the cylindrical shell (51). An air outlet (54) is provided on the side of the sealing cover (53). A second stepper motor (55) is installed on the sealing cover (53) to drive the sealing cover (53) to rotate axially around the cylindrical shell (51). When the air outlet (54) on the sealing cover (53) communicates with one of the through holes (52), the sealing cover (53) seals the other through holes (52).

7. The anti-tipping algae cleaning device according to claim 6, characterized in that, The inner wall of the sealing cover (53) is fixedly installed with three one-way air inlet valves (56). The side wall of the sealing cover (53) is provided with a transmission hole (566) that communicates with the one-way air inlet valve (56). When the air outlet (54) is connected to one of the through holes (52), the three transmission holes (566) are also connected to the other three through holes (52).

8. The anti-tipping algae cleaning device according to claim 7, characterized in that, The one-way intake valve (56) includes a valve stem (561) fixedly installed on the inner wall of the sealing cover (53). A valve cover (562) is installed on one side of the valve stem (561). A positioning post (563) is fixedly installed on the side of the valve cover (562) near the valve stem (561). A retaining ring (564) is fixedly installed on the inner wall of the valve stem (561). A second spring (565) is fixedly installed between the retaining ring (564) and the positioning post (563). In the initial state, the valve cover (562) abuts against the side wall of the valve stem (561), and the second spring (565) is in a stretched state.

9. The anti-tipping algae cleaning device according to claim 1, characterized in that, The drive unit (44) includes a first stepper motor (441) disposed inside the protective cover (1). A gear (442) is fixedly installed on the output shaft of the first stepper motor (441). A gear ring (443) that meshes with the gear (442) is fixedly installed on the circumferential side of the air delivery pipe (42). The air delivery pipe (42) is fixedly connected to the jet pipe (43).

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