Micro-nano oxygenation robot for river water treatment

Abstract

The invention belongs to the field of river water treatment, and particularly relates to a river water treatment micro-nano oxygenation robot which comprises a ship body, a propelling device used for providing driving power is arranged on one side of the ship body, and a releaser used for discharging bubbles is further arranged at the bottom of the ship body. A micro-nano aerator for supplying oxygen to the releaser, a first winding roller for winding and unwinding the releaser, a vertical shaft for providing a winding and unwinding channel of the releaser, and a power mechanism for driving the first winding roller to rotate in a reciprocating manner are further arranged at the top of the releaser; by arranging the power mechanism, the first winding roller can wind and unwind the releaser intermittently, so that vertical reciprocating motion of the releaser in a water body is achieved, the coverage range of bubble groups sprayed out by the releaser is expanded, and then the uniformity of the device during oxygenation of river water is improved.

Description

Technical Field

[0001] This invention relates to the field of river water management, specifically a micro-nano oxygenation robot for river water management. Background Technology

[0002] River water management aims to restore the ecological function of aquatic bodies, with core objectives including pollutant degradation, dissolved oxygen enhancement, and algae suppression. Oxygenation is a crucial step in the process, with common methods including stationary aerators and nanobubble generators. By injecting oxygen or air into the water, aerobic microorganisms decompose organic matter and oxidize harmful substances such as ammonia nitrogen and hydrogen sulfide in the sediment, thereby improving water quality. Furthermore, oxygenation enhances water flow, breaks up stratification, and prevents the formation of anoxic zones at the bottom.

[0003] Existing technologies include mature solutions for river water testing. For example, a Chinese patent with publication number CN206544918U discloses an aeration and oxygenation device for a river management robot. This device uses a solar-powered micro-aerator to produce oxygen, which is then pressurized in a storage tank and delivered to a nano-aeration bar. The aeration bar employs a porous structure to release gas and claims to utilize "nano-exposure" technology to generate hydroxyl radicals, enhancing the oxidative decomposition of organic pollutants. It combines flotation and degradation functions to improve water transparency and COD removal efficiency.

[0004] However, the aforementioned technology has the following drawbacks: its oxygen release device (nano-aeration bar) is fixed to the underside of the hull base, and the water level is constant, making it unable to adapt to the oxygenation needs at different depths in the river. Especially when the river is deep, the released oxygen is difficult to effectively reach the bottom of the riverbed, resulting in the inability to improve the oxygen-deficient areas at the bottom and the inability to fully oxidize pollutants in the sediment.

[0005] Therefore, a micro-nano oxygenation robot for river water treatment is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A micro-nano oxygenation robot for river water treatment, as described in this invention, includes a hull, a propulsion device for providing driving power on one side of the hull, a release device for discharging air bubbles at the bottom, and a micro-nano oxygenator for supplying oxygen to the release device, a first roller for winding and unwinding the release device, a vertical shaft for providing a winding and unwinding channel for the release device, and a power mechanism for driving the first roller to reciprocate; a second roller is rotatably mounted on the outer wall of the micro-nano oxygenator, and the second roller... A belt is fitted between the first roller and the first roller; the power mechanism includes a third gear fixedly connected to the end of the first roller and a first crank rotating above the hull; a second rack is slidably provided on the hull for driving the third gear to rotate; a second crank is eccentrically rotated on the outer wall of the first crank for driving the second rack to move radially; by setting the power mechanism, the first roller can intermittently wind and unwind the releaser to realize the vertical reciprocating motion of the releaser in the water, expand the coverage of the bubble group sprayed by the releaser, and thus improve the uniformity of the device when oxygenating the river water.

[0008] Preferably, the power mechanism further includes a power source for driving the first crank to rotate; a slider rotatably connected to the end of the second crank and slidably disposed above the hull; a first gear is fixedly connected to the outer wall of the slider; a first rack fixedly disposed above the hull is meshed at the top of the first gear, and the bottom of the first gear is meshed with the second rack; a second gear rotatably disposed above the hull is meshed above the second rack; the second gear meshes with the first roller and the third gear, and the outer diameter of the second gear is larger than that of the third gear; through the cooperation of the first crank, the second crank, and the slider, the reciprocating power input to the first roller is realized; through the cooperation of the first gear, the first rack, and the second rack, the stroke of the reciprocating motion of the second rack can be extended; and by cooperating with the outer diameter difference between the second gear and the third gear, the speed-increasing input of the first crank to the first roller is realized.

[0009] Preferably, the outer wall of the first roller has an elliptical structure; due to the weight of the release device, the release device can oscillate due to inertia during the lowering process, that is, swing back and forth. At this time, the exhaust port at the end of the release device can release a group of bubbles in a fan-shaped area, thereby expanding the coverage of the bubbles and further improving the uniformity of oxygenation of the water by the device.

[0010] Preferably, a pair of rotating shafts are provided on both sides of the shaft, rotating symmetrically around the center. The pair of rotating shafts are distributed on both sides of the first roller and are fitted with belts between them. A pair of first guide rollers are fixed to the ends of the rotating shafts through mounting plates. The first guide rollers guide the swing direction of the release device through rolling contact, so that it smoothly transitions from swinging to swinging to swinging to the left. At the same time, the first guide rollers, which revolve around the circumference, can reduce the impact resistance when in contact with the rope chain at the top of the release device, and avoid the jamming phenomenon caused by the lateral friction between the release device and the first guide rollers, so that the swing of the release device is more reliable and controllable.

[0011] Preferably, a pair of second guide rollers are symmetrically rotated on the inner wall of the shaft; by setting a pair of second guide rollers, the pair of second guide rollers can limit the rope chain at the top of the releaser in the Y direction, further improving the controllability of the swing amplitude of the releaser.

[0012] Preferably, a pair of pontoons are provided on the outer side of the bottom of the shaft; a pair of connecting rods are fixed between the pair of pontoons; a plurality of inclined elastic rods are fixed to the top of the connecting rods; as the pontoons move with the hull, they can adhere to the bottom of the hull due to buoyancy, while the elastic rods are located between a pair of second guide rollers. Due to the uneven flow speed in the river, the pontoons themselves will oscillate up and down, so that the elastic rods can clear the gaps between the second guide rollers along with the connecting rods, thereby reducing the blockage of impurities such as water plants in the gaps. It is worth mentioning that the water level in the shaft should be controlled between the shaft and the second guide rollers.

[0013] Preferably, a sliding rod is fixedly provided at the top of the pontoon; a horizontal plate that slides with the sliding rod is fixedly provided on the inner wall of the shaft; in the initial state, the sliding rod floats with the pontoon, and a pair of rotating shafts can intermittently strike the sliding rod at the bottom during rotation, driving the sliding rod and the pontoon to move vertically back and forth. The horizontal plate provides guidance for the sliding rod, so that the elastic rod on the connecting rod can intermittently clear the gap between a pair of second guide rollers, ensuring the stability of the clearing movement of the elastic rod and improving the utilization rate of the rotating shaft's rotational power.

[0014] Preferably, a ball is fixed to the top of the slide rod; by setting the ball, the smooth curved surface structure of the ball can minimize the squeezing resistance between the mounting plate on the rotating shaft and the slide rod, ensuring that the slide rod can carry the float in a stable vertical reciprocating motion.

[0015] Preferably, the power mechanism also includes a protective cover fixedly mounted on the top of the hull; the outer wall of the protective cover is provided with a pair of positioning grooves; a pointer is concentrically fixed on the outer wall of the first crank; the protective cover can provide dust and moisture protection for the meshing transmission structure inside the power mechanism, and since the pointer is concentrically connected to the first crank and the pair of positioning grooves are half a turn apart, the position of the release device can be determined by observing the position of the positioning groove indicated by the pointer, which facilitates the staff's understanding and control of the release device's position during maintenance or shutdown.

[0016] Preferably, at least one sacrificial anode is fixed to the inner wall of the shaft; by setting the sacrificial anode, the sacrificial anode, due to its more active chemical properties, can undergo electrochemical corrosion before the other components, thereby extending the service life of the other components.

[0017] The advantages of this invention are: 1. The micro-nano oxygenation robot for river water treatment described in this invention, by setting a power mechanism, enables the first roller to intermittently wind and unwind the releaser, so as to realize the vertical reciprocating motion of the releaser in the water body, expand the coverage of the bubble group sprayed by the releaser, and thus improve the uniformity of oxygenation of river water by the device.

[0018] 2. The micro-nano oxygenation robot for river water treatment described in this invention achieves the input of reciprocating power to the first roller through the coordinated action of the first crank, the second crank, and the slider. Through the coordinated action of the first gear, the first rack, and the second rack, the stroke of the reciprocating motion of the second rack can be extended. With the outer diameter difference between the second gear and the third gear, the first crank achieves the speed-increasing input to the first roller. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the main body of the present invention; Figure 2 This is a schematic diagram of the structure of the first roller in this invention; Figure 3 This is a schematic diagram of the release device in this invention; Figure 4 This is a schematic diagram of the structure of the first crank in this invention; Figure 5 This is a schematic diagram of the structure of the pontoon in this invention; Figure 6This is a schematic diagram of the structure of the first guide roller in this invention; Figure 7 This is a schematic diagram of the sacrificial anode structure in this invention.

[0021] In the diagram: 1. Hull; 12. Propulsion device; 13. Micro-nano oxygenator; 14. First roller; 15. Release device; 16. Shaft; 17. Second roller; 2. First crank; 22. Second crank; 23. Slider; 24. First gear; 25. First rack; 26. Second rack; 27. Second gear; 28. Third gear; 4. Shaft; 42. First guide roller; 5. Second guide roller; 6. Float; 62. Connecting rod; 63. Elastic rod; 7. Horizontal plate; 72. Sliding rod; 8. Sphere; 9. Protective cover; 92. Pointer; 93. Positioning groove; 10. Sacrificial anode. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Specific implementation examples are given below.

[0024] Please see Figures 1 to 7 As shown in the embodiment of the present invention, a micro-nano oxygenation robot for river water treatment includes a hull 1. A propulsion device 12 for providing driving power is provided on one side of the hull 1, a release device 15 for discharging air bubbles is provided at the bottom, and a micro-nano oxygenator 13 for supplying oxygen to the release device 15, a first roller 14 for winding and unwinding the release device 15, a vertical shaft 16 for providing a winding and unwinding channel for the release device 15, and a power mechanism for driving the first roller 14 to reciprocate. A second roller 17 is rotatably provided on the outer wall of the micro-nano oxygenator 13, and a belt is sleeved between the second roller 17 and the first roller 14. The power mechanism includes a third gear 28 fixedly connected to the end of the first roller 14 and a first crank 2 rotatably disposed above the hull 1. A second rack 26 for driving the third gear 28 to rotate is slidably provided on the hull 1. A second crank 22 for driving the second rack 26 to move radially is eccentrically rotatably provided on the outer wall of the first crank 2. During operation, the propulsion device 12, which can be a propeller, can be activated to control the hull 1 to move on the water surface. After moving to the river area requiring oxygenation, the hull 1 can be braked. The water flow velocity in this area is mostly slow or even close to still. Then, the micro-nano aerator 13 can be activated to generate micro-nano bubbles for targeted oxygenation in the river area. The micro-nano aerator 13 can be connected to the release device 15 located in the water body through a flexible pipe. The pipe is wound around the surface of the second roller 17. The second roller 17 rotates with the first roller 14 via a belt, which can apply traction force to the pipe, so that the pipe can be kept in a stable state when moving with the release device 15. In addition, an isolator can be installed on the inner wall of the shaft 16 to isolate and limit the pipe during actual use, so as to isolate the pipe and the unwinding structure of the first roller 14 and reduce the entanglement that occurs when they are wound up. The micro-nano aerator 13 generates micro-nano bubbles. The bubble cluster can be transported to the release device 15 via a pipe. The release device 15 has multiple vertically downward-facing waterproof nozzles on its inner and outer walls, ensuring that the micro-nano bubble cluster is discharged from the release device 15 into the water body without water ingress, rapidly improving the oxygen-deficient state of the water. During this process, the power mechanism is activated, driving the first crank 2 to rotate and input power. The first crank 2 drives the second crank 22 to rotate, which in turn drives the second rack 26 to perform a lateral reciprocating motion. The second rack 26 drives the third gear 28 and its directly connected first roller 14 to reciprocate in a fixed stroke of several revolutions, unwinding the release device 15. Because the water flow velocity is slow at this location, the release device 15 can maintain a roughly vertical reciprocating motion to discharge the bubble cluster into the water body, expanding the effective oxygenation range of the release device 15 and reducing oxygenation dead zones caused by excessive depth at the bottom of the riverbed. The unwinding structure can be a rope or chain; this is not limited here. Figure 2 and Figure 3 The release device 15 is positioned directly below the hull 1 with a certain safety distance at its highest point of travel, while the lowest point of travel is positioned directly above the riverbed with a certain safety distance. Taking a typical 5-meter deep river as an example, the safety distance at the lower end is 1 meter, and the safety distance at the upper end is 0.5 meters. Therefore, the travel distance of the release device 15 is approximately 3.5 meters. Consequently, the unwinding structure requires a relatively short length. Thus, when switching between multiple oxygenation points, the unwinding structure on the first roller 14 can be allowed to stabilize before rewinding. The lateral thrust exerted by the water flow can be ignored. On the other hand, by coordinating a slow winding speed, the occurrence of rope tangling or overlapping during the winding of the unwinding structure can be minimized. The specific winding speed and total length of the unwinding structure can be determined by practice and will not be elaborated here. By setting a power mechanism, the first winding roller 14 can intermittently wind and unwind the releaser 15 to realize the vertical reciprocating motion of the releaser 15 in the water body, expand the coverage of the bubble group ejected by the releaser 15, and thus improve the uniformity of oxygenation of the river water by the device.

[0025] Please see Figures 2 to 4 As shown, the power mechanism also includes a power source for driving the first crank 2 to rotate; a slider 23 rotatably connected to the end of the second crank 22 and slidably disposed above the hull 1; a first gear 24 is fixedly connected to the outer wall of the slider 23; a first rack 25 fixedly disposed above the hull 1 is meshed at the top of the first gear 24, and the bottom of the first gear 24 is meshed with the second rack 26; a second gear 27 rotatably disposed above the hull 1 is meshed above the second rack 26; the second gear 27 is meshed with a third gear 28, and the outer diameter of the second gear 27 is larger than that of the third gear 28; The rotational power of the first roller 14 is as follows: a power source, preferably an electric motor, drives the first crank 2 to rotate. The first crank 2 drives the second crank 22, which is eccentrically connected to the outside, to oscillate in a circular motion, and causes the slider 23, which is directly connected to the end of the second crank 22, to slide radially back and forth along the hull 1. The first gear 24 moves synchronously with the slider 23 and meshes with the fixed first rack 25 to rotate. When the first gear 24 rotates, it meshes with the second rack 26 at the bottom, driving the second rack 26 to slide in the same direction as the slider 23. When the second rack 26 moves, it meshes with the second gear 27 and rotates it. The second gear 27 then meshes with the third gear 28 and rotates it, thereby transmitting the reciprocating power to the first roller 14 directly connected to the third gear 28. At the same time, since the limit stroke of the second rack 26 is the first crank 2... The diameter of the oscillating circumference plus the circumference of the first gear 24 can increase the lateral displacement of the second rack 26 within the limited space on the hull 1, increasing the number of rotations of the third gear 28 and the first roller 14 in a single stroke. Since the outer diameter of the second gear 27 is larger than that of the third gear 28, the power output at the third gear 28 is accelerated, achieving the effect of accelerating the rotation of the third gear 28 to several rotations simultaneously when the first crank 2 rotates once. Through the coordinated action of the first crank 2, the second crank 22, and the slider 23, the reciprocating power input to the first roller 14 is realized. Through the coordinated action of the first gear 24, the first rack 25, and the second rack 26, the stroke of the reciprocating motion of the second rack 26 can be extended. Combined with the difference in outer diameter between the second gear 27 and the third gear 28, the acceleration input of the first crank 2 to the first roller 14 is realized.

[0026] Please see Figure 6 and Figure 7 As shown, the outer wall of the first roller 14 has an elliptical structure; By setting the first roller 14 to an elliptical structure, the working area of ​​this device is a river water area with slow internal water flow or even near stillness. When the first roller 14 rotates, the unwinding radius of the release device 15 can switch back and forth between the major and minor axes of the first roller 14 and generate torque. The torque can cause the release device 15 to deflect laterally during unwinding. Due to the self-weight of the release device 15, the release device 15 can oscillate due to inertia during the lowering process, that is, swing back and forth, which can disturb the water around the release device 15. At this time, the exhaust port at the end of the release device 15 can release a group of bubbles in a fan-shaped area. With the surrounding turbulent water flow, the coverage of the bubbles can be expanded, and the uniformity of oxygenation of the water by the device can be further improved.

[0027] Please see Figure 6 and Figure 7 As shown, a pair of rotating shafts 4 are provided on both sides of the vertical shaft 16, rotating symmetrically around the center. The pair of rotating shafts 4 are distributed on both sides of the first roller 14 and a belt is sleeved between them and the first roller 14. A pair of first guide rollers 42 are fixed to the ends of the rotating shafts 4 through mounting plates. During the lowering process, the release device 15 can swing back and forth. One rotating shaft 4 has a mounting plate parallel to the long axis of the first roller 14, while the other rotating shaft 4 is perpendicular to it. Figure 6 As shown, when the unwinding radius of the release device 15 is the short axis of the first winding roller 14, it can deflect to the right. A pair of rotating shafts 4 can rotate synchronously with the first winding roller 14 through belt drive. At this time, the first guide roller 42 directly connected to the right rotating shaft 4 can just rotate to contact the rope or chain at the top of the release device 15 to limit the swing amplitude of the release device 15 in the X direction. This setting allows the first guide roller 42 to guide the swing direction of the release device 15 through rolling contact, so that it can smoothly transition from swinging to swinging to swinging to the left. At the same time, the first guide roller 42, which revolves around the circumference, can reduce the impact resistance when it contacts the rope or chain at the top of the release device 15, and avoid the jamming phenomenon caused by the lateral friction between the release device 15 and the first guide roller 42, so that the swing of the release device 15 is more reliable and controllable.

[0028] Please see Figure 5 and Figure 6 As shown, a pair of second guide rollers 5 are symmetrically rotated on the inner wall of the vertical shaft 16; By setting a pair of second guide rollers 5, the rope chain at the top of the releaser 15 can be limited in the Y direction, further improving the controllability of the swing amplitude of the releaser 15.

[0029] Please see Figure 6 and Figure 7 As shown, a pair of pontoons 6 are provided on the outer side of the bottom of the vertical shaft 16; a pair of connecting rods 62 are fixedly connected between the pair of pontoons 6; and a plurality of inclined elastic rods 63 are fixedly connected to the top of the connecting rods 62. As the buoy 6 travels with the hull 1, it can adhere to the bottom of the hull 1 due to buoyancy. The elastic rod 63 will be located between a pair of second guide rollers 5. Due to the uneven flow speed in the river, the buoy 6 will oscillate up and down, allowing the elastic rod 63 to clear the gap between the second guide rollers 5 along with the connecting rod 62, thereby reducing the blockage of the gap by impurities such as water plants. It is worth mentioning that the water level in the vertical shaft 16 should be controlled between the rotating shaft 4 and the second guide rollers 5.

[0030] Please see Figure 6 and Figure 7 As shown, a sliding rod 72 is fixedly provided on the top of the pontoon 6; a horizontal plate 7 that slides and engages with the sliding rod 72 is fixedly provided on the inner wall of the shaft 16. In the initial state, the slide bar 72 floats upward along with the float 6. During the rotation of the pair of rotating shafts 4, the slide bar 72 at the bottom can be intermittently struck, driving the slide bar 72 and the float 6 to move vertically back and forth. The horizontal plate 7 provides guidance for the slide bar 72, so that the elastic rod 63 on the connecting rod 62 can intermittently clear the gap between the pair of second guide rollers 5, ensuring the stability of the clearing movement of the elastic rod 63 and improving the utilization rate of the rotational power of the rotating shaft 4.

[0031] Please see Figure 6 and Figure 7 As shown, a ball 8 is fixed to the top of the slide bar 72; By setting up the sphere 8, the smooth curved surface structure of the sphere 8 can minimize the squeezing resistance between the mounting plate on the rotating shaft 4 and the slide rod 72, ensuring that the slide rod 72 can carry the float 6 in a stable vertical reciprocating motion.

[0032] Please see Figure 1 and Figure 2 As shown, the power mechanism also includes a protective cover 9 fixedly mounted on the top of the hull 1; the outer wall of the protective cover 9 is provided with a pair of positioning grooves 93; and the outer wall of the first crank 2 is concentrically fixed with a pointer 92. The protective cover 9 can protect the meshing transmission structure in the power mechanism from dust and moisture. At the same time, since the pointer 92 is concentrically connected to the first crank 2 and the two positioning slots 93 are half a turn apart, the position of the release device 15 can be known by observing the position of the positioning slot 93 indicated by the pointer 92. This makes it easier for the staff to understand and control the position of the release device 15 when the device is under maintenance or shut down.

[0033] Please see Figures 5 to 7 As shown, at least one sacrificial anode 10 is fixed to the inner wall of the shaft 16; By setting a sacrificial anode 10, which is chemically more active, it can undergo electrochemical corrosion before other components, thereby extending the service life of the other components.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A micro-nano oxygenation robot for river water treatment, comprising a hull (1), characterized in that: The hull (1) is provided with a propulsion device (12) on one side for providing driving power. And a release device (15) for expelling air bubbles is also provided at the bottom. The top is also provided with a micro-nano oxygenator (13) for supplying oxygen to the releaser (15), a first roller (14) for winding and unwinding the releaser (15), a shaft (16) for providing a winding and unwinding channel for the releaser (15), and a power mechanism for driving the first roller (14) to reciprocate; the outer wall of the micro-nano oxygenator (13) is rotatably provided with a second roller (17), and a belt is sleeved between the second roller (17) and the first roller (14); The power mechanism includes a third gear (28) fixedly connected to the end of the first roller (14) and a first crank (2) rotatably disposed above the hull (1); a second rack (26) for driving the third gear (28) to rotate is slidably disposed on the hull (1); a second crank (22) for driving the second rack (26) to move radially is eccentrically disposed on the outer wall of the first crank (2).

2. The micro-nano oxygenation robot for river water treatment according to claim 1, characterized in that: The power mechanism also includes a power source for driving the first crank (2) to rotate; the end of the second crank (22) is rotatably connected to a slider (23) that is slidably disposed above the hull (1); The outer wall of the slider (23) is fixedly connected to a first gear (24); the top of the first gear (24) is engaged with a first rack (25) fixed above the hull (1), and the bottom is engaged with the second rack (26); the top of the second rack (26) is engaged with a second gear (27) rotatably mounted above the hull (1); the first roller of the second gear (27) is engaged with the third gear (28), and the outer diameter of the second gear (27) is larger than that of the third gear (28).

3. The micro-nano oxygenation robot for river water treatment according to claim 2, characterized in that: The outer wall of the first roller (14) is elliptical.

4. The micro-nano oxygenation robot for river water treatment according to claim 3, characterized in that: The shaft (16) has a pair of rotating shafts (4) that rotate symmetrically around the center on both sides. The pair of rotating shafts (4) are distributed on both sides of the first roller (14) and a belt is sleeved between them. The ends of the rotating shafts (4) are fixed to a pair of first guide rollers (42) by mounting plates.

5. The micro-nano oxygenation robot for river water treatment according to claim 4, characterized in that: The inner wall of the vertical shaft (16) is symmetrically rotated and equipped with a pair of second guide rollers (5).

6. The micro-nano oxygenation robot for river water treatment according to claim 5, characterized in that: A pair of pontoons (6) are provided on the outer side of the bottom of the shaft (16); a pair of connecting rods (62) are fixed between the pair of pontoons (6); a plurality of inclined elastic rods (63) are fixed to the top of the connecting rods (62).

7. The micro-nano oxygenation robot for river water treatment according to claim 6, characterized in that: The top of the pontoon (6) is fixedly provided with a sliding rod (72); the inner wall of the shaft (16) is fixedly provided with a horizontal plate (7) that slides with the sliding rod (72).

8. The micro-nano oxygenation robot for river water treatment according to claim 7, characterized in that: A ball (8) is fixed to the top of the slide bar (72).

9. The micro-nano oxygenation robot for river water treatment according to claim 8, characterized in that: The power mechanism also includes a protective cover (9) fixedly mounted on the hull (1); a pair of positioning grooves (93) are provided on the outer wall of the protective cover (9); and a pointer (92) is concentrically fixed on the outer wall of the first crank (2).

10. The micro-nano oxygenation robot for river water treatment according to claim 9, characterized in that: At least one sacrificial anode (10) is fixed to the inner wall of the shaft (16).

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