Urban river flow pushing aerator

Abstract

The application discloses a kind of urban river push flow aerators, it is related to river aeration equipment technical field, including several evenly distributed pontoons, the side of the pontoon is provided with driving mechanism;The bottom of the venturi is provided with control mechanism for controlling gas-liquid flow;The end of the shaft is provided with push flow mechanism for water-oxygen mixing;The inside of the push flow mechanism is provided with aeration mechanism for providing water-oxygen flow path;The control mechanism and the push flow mechanism are driven by the driving mechanism to run synchronously, cooperate with the aeration mechanism to flow water-oxygen, to switch mode to carry out two kinds of water-oxygen mixing work on liquid surface and under liquid.The application discloses a kind of urban river push flow aerators has multiple working modes, can adapt to water and underwater double working environment, the effect of high water-oxygen mixing efficiency.

Description

Technical Field

[0001] This invention relates to the field of river aeration equipment technology, and in particular to an urban river propulsion aerator. Background Technology

[0002] Submersible aerators, also known as propeller aerators, are used in rivers, lakes, and ponds. They have powerful aeration, mixing, and propulsion functions. They are lightweight, multi-functional oxygenation and aeration equipment as well as water circulation equipment, and are widely used in small landscape water bodies such as waterscape residences, artificial lakes, and artificial rivers. In water body restoration practices, they have significant effects on water reoxygenation and water circulation, and can be installed in various ways for different water bodies.

[0003] There are two applicable environments for river aeration. For deep water areas (deeper than 3 meters), enclosed or slow-flowing water bodies, and environments requiring precise oxygen control, underwater aeration is significantly more efficient. For shallow water areas (deeper than 3 meters), flowing water bodies and landscape water areas, and environments where installation and maintenance are limited, surface aeration is more suitable. However, most existing propulsion aerators are submersible and only have a single working mode, which makes them unable to adapt to different environments and results in operational shortcomings and limitations. Summary of the Invention

[0004] This invention discloses an urban river propulsion aerator, which aims to solve the technical problem that most existing propulsion aerators are submersible and only have a single working mode, thus failing to adapt to the operating environment and having operational shortcomings and limitations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A city river aerator includes several evenly distributed floats and a solar panel mounted on the top of each float. A drive mechanism is provided on the side of each float. The drive mechanism includes a drive motor that is inserted between the floats. A shaft is fixed to the output end of the drive motor. A venturi tube is sleeved and fixed to the end of the drive motor. The shaft is distributed inside the venturi tube and the end of the shaft extends through the inside of the venturi tube.

[0007] The bottom of the Venturi tube is provided with a control mechanism for controlling the flow of gas and liquid. The control mechanism includes a set of suction tube components fixedly connected to the middle constriction section of the Venturi tube. Each suction tube component has a symmetrically arranged inlet chamber and outlet chamber. The inlet chamber extends through the bottom of the suction tube component, and the outlet chamber is connected to the interior of the Venturi tube.

[0008] The end of the shaft is provided with a propulsion mechanism for mixing water and oxygen;

[0009] The internal structure of the propulsion mechanism is equipped with an aeration mechanism that provides a water-oxygen flow path.

[0010] The drive mechanism drives the control mechanism and the propulsion mechanism to operate synchronously, and works in conjunction with the aeration mechanism to circulate water and oxygen, thereby switching between the two types of water and oxygen at the liquid surface and below the liquid surface.

[0011] By setting the traditional submersible propeller aerator to a dual-working mode, the rotation of the drive mechanism is used to adjust the positions of the propeller and control mechanisms. When the control and propeller mechanisms are below the liquid surface, the control mechanism is in a closed state, while the propeller mechanism is in an extended state. Driven by the drive mechanism, a large amount of oxygen is introduced into the river while stirring the river water for mixing. When the control and propeller mechanisms are above the liquid surface, the control mechanism is in an open or closed state, while the propeller mechanism is in a retracted state. Driven by the drive mechanism, the control mechanism brings the river water out of the liquid surface and uses the propeller mechanism to fully disperse the mixed oxygen. This allows the equipment to change its working mode according to the usage environment, significantly improving the mixing efficiency of river water and oxygen and the functionality of traditional equipment.

[0012] In a preferred embodiment, the drive mechanism further includes a control motor fixedly installed on the top of the pontoon, the output shaft of the control motor being horizontally mounted on the top of several pontoons and sequentially fixedly connected to the top of several drive motors, and an electrically controlled air intake pipe being connected through to the end of each venturi tube.

[0013] By installing a drive motor driven by a regulating motor on the side of the pontoon, the driving motor is rotated by the regulating motor, thereby adapting and adjusting the position of the propulsion mechanism and the control mechanism, so that the equipment has multiple working modes and improves the functionality of the equipment.

[0014] In a preferred embodiment, the control mechanism further includes a movable component slidably mounted in the middle of the straw component. The movable component has symmetrically arranged guiding cavities on both sides, which connect to the feeding cavity and the discharging cavity located on the same side. A float is fixedly connected to the bottom of the movable component. A partition is provided in the middle of the straw component, which separates the feeding cavity and the discharging cavity. The upwardly moving guiding cavity contacts the bottom of the partition.

[0015] By installing a movable component structure at the bottom of the venturi tube, driven by a buoy, the buoy's positional relationship allows the movable component to move, thereby changing the positional relationship between the guide cavity, feed cavity, and discharge cavity to adapt to different operating environments. When the control mechanism and the flow propulsion mechanism are below the liquid surface, the control mechanism is in a closed state; when the control mechanism and the flow propulsion mechanism are above the liquid surface, the control mechanism is in an open or closed state, thus ensuring the complete operation of the equipment in both working modes.

[0016] In a preferred embodiment, the propulsion mechanism includes a turntable fixedly mounted on the end of the shaft, a central rod fixedly mounted on the other side of the turntable, a plurality of first propulsion rods rotatably mounted on the edge of the turntable, a second propulsion rod rotatably mounted on the end of each first propulsion rod, and the other ends of the plurality of second propulsion rods rotatably connected to a counterweight ring, the counterweight ring being slidably sleeved on the outside of the central rod.

[0017] By installing a rotating disk structure driven by a shaft at the end of the venturi tube, the rotation of the shaft drives the rotating disk and the first and second pusher rods to rotate synchronously. Simultaneously, the second pusher rod is additionally connected to a counterweight ring structure. The rotation of the drive motor drives the counterweight ring, causing it to slide along the central rod under its own weight. This causes the first and second pusher rods to extend and retract. When the counterweight ring is below the liquid surface, the first and second pusher rods extend; when the counterweight ring is above the liquid surface, the first and second pusher rods retract. This adapts to different working environments, ensuring the stirring efficiency and operational reliability of the equipment.

[0018] In a preferred embodiment, the aeration mechanism includes a plurality of aeration holes and ports that penetrate the surface of the turntable, and an aeration row is installed inside each of the first push rods, the aeration row and the port being connected in a through manner.

[0019] By adding an aeration structure to the first push rod, when the first push rod is raised above the liquid surface as the drive motor rotates, the aeration structure can spray river water into the air as the equipment operates and the first push rod folds, thus allowing the river water to mix better with oxygen and significantly improving the water-oxygen mixing efficiency of traditional equipment.

[0020] As can be seen from the above, the urban river propulsion aerator provided by the present invention has the following technical effects.

[0021] Firstly, a drive motor driven by a regulating motor is installed on the side of the float. The regulating motor drives the drive motor to rotate, thereby adjusting the position of the propulsion mechanism and the control mechanism. At the same time, a Venturi tube structure is installed at the end of the drive motor. A moving component structure driven by a buoy is installed at the bottom of the Venturi tube. Utilizing the positional relationship of the buoy, the buoyancy drives the moving component to move, thereby changing the positional relationship between the guide cavity, the feed cavity, and the discharge cavity to adapt to different operating environments. When the control mechanism and the propulsion mechanism are below the liquid surface, the control mechanism is in a closed state; when the control mechanism and the propulsion mechanism are above the liquid surface, the control mechanism is in an open or closed state, thus ensuring the complete operation of the equipment in dual working modes.

[0022] Secondly, by setting a rotating disk structure driven by a shaft at the end of the venturi tube, the rotation of the shaft drives the rotating disk and the first and second push rods to rotate synchronously. At the same time, the second push rod is additionally connected to the counterweight ring structure. The rotation of the drive motor drives the counterweight ring, causing the counterweight ring to slide along the central rod by its own weight. This causes the first and second push rods to extend and retract. When the counterweight ring is below the liquid surface, the first and second push rods extend; when the counterweight ring is above the liquid surface, the first and second push rods retract. This adapts to different working environments and ensures the stirring efficiency and operational perfection of the equipment.

[0023] Thirdly, by installing a drive motor on the side of the float, driven by a regulating motor, the position of the propulsion mechanism and the control mechanism can be adjusted accordingly. When the control mechanism and the propulsion mechanism are below the liquid surface, the suction pipe component is in a closed state, and the first and second propulsion rods extend. Simultaneously, the shaft rotates, causing extensive agitation of the river water. At the same time, oxygen is injected into the water using a Venturi tube, improving the water-oxygen mixing rate. When the control mechanism and the propulsion mechanism are above the liquid surface, the suction pipe component is in an open and closed state, and the first and second propulsion rods retract. Simultaneously, the shaft rotates, and oxygen is injected. The river water is drawn from the suction pipe component using a Venturi tube (Bernoulli's principle) and sprayed out through an additional aeration outlet, thereby improving the water-oxygen mixing rate. It has both above-water and underwater working modes, significantly improving the functionality of traditional equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure proposed in this invention.

[0025] Figure 2 This is a schematic diagram of the drive mechanism structure proposed in this invention.

[0026] Figure 3 This is a cross-sectional view of the Venturi tube structure proposed in this invention.

[0027] Figure 4 This is a cross-sectional view of the control mechanism structure proposed in this invention.

[0028] Figure 5 This is a cross-sectional view of the moving part structure proposed in this invention.

[0029] Figure 6 This is a schematic diagram of the propulsion mechanism proposed in this invention.

[0030] Figure 7 This is a schematic diagram of the aeration mechanism proposed in this invention.

[0031] Figure 8 This is a schematic diagram of the turntable structure proposed in this invention.

[0032] Figure 9 This is a schematic diagram of the equipment operating above the liquid level according to the present invention.

[0033] Figure 10 This is a schematic diagram of the equipment operating below the liquid level proposed in this invention.

[0034] Figure 11 This is a schematic diagram of the buoy's operating state as proposed in this invention.

[0035] In the diagram: 1. Float; 2. Solar panel; 3. Drive mechanism; 301. Drive motor; 302. Shaft; 303. Venturi tube; 304. Electrically controlled suction pipe; 305. Control motor; 306. Base; 4. Control mechanism; 401. Suction pipe component; 4011. Partition; 402. Feed chamber; 403. Discharge chamber; 404. Moving part; 405. Conducting chamber; 406. Buoy; 4061. Connecting rod; 5. Flow propulsion mechanism; 501. Turntable; 502. Central rod; 503. First flow propulsion rod; 504. Second flow propulsion rod; 505. Counterweight ring; 506. Spring; 6. Aeration mechanism; 601. Aeration hole; 602. Port; 603. Aeration outlet; 604. Hose; 605. Hollowed-out part. Detailed Implementation

[0036] 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.

[0037] The urban river propulsion aerator disclosed in this invention is mainly used in scenarios involving water-oxygen mixing in rivers.

[0038] Reference Figures 1 to 11A city river aerator includes several evenly distributed floats 1, a solar panel 2 mounted on the top of the floats 1, a drive mechanism 3 provided on the side of the floats 1, the drive mechanism 3 includes a drive motor 301 inserted between the floats 1, a shaft 302 fixed to the output end of the drive motor 301, a venturi tube 303 sleeved and fixed to the end of the drive motor 301, the shaft 302 is distributed inside the venturi tube 303 and the end of the shaft 302 passes through the inside of the venturi tube 303;

[0039] The bottom of the Venturi tube 303 is provided with a control mechanism 4 for controlling the flow of gas and liquid. The control mechanism 4 includes a set of suction components 401 fixedly connected to the middle constriction section of the Venturi tube 303. Each suction component 401 has a symmetrically opened inlet chamber 402 and outlet chamber 403. The inlet chamber 402 passes through the bottom of the suction component 401 and the outlet chamber 403 is connected to the inside of the Venturi tube 303.

[0040] The end of the shaft 302 is provided with a propulsion mechanism 5 for mixing water and oxygen;

[0041] The internal structure of the flow propulsion mechanism 5 is equipped with an aeration mechanism 6 that provides a water-oxygen flow path;

[0042] The drive mechanism 3 drives the control mechanism 4 and the propulsion mechanism 5 to operate synchronously, and works in conjunction with the aeration mechanism 6 to circulate water and oxygen, so as to carry out the mixing of water and oxygen at the liquid surface and below the liquid surface by switching modes.

[0043] In this embodiment: the worker moves the entire equipment to the river channel, and at the same time uses an additional rope to fix the float 1 in place at the position to be operated. At this time, the solar panel 2 will be exposed to sunlight, converting light energy into electrical energy, which will drive the drive mechanism 3 to operate under the worker's control. When the control mechanism 4 and the propulsion mechanism 5 are above the river surface, the river water will be sucked by the control mechanism 4 as the drive mechanism 3 operates, and will be sprayed out from the rotating propulsion mechanism 5, thereby fully contacting and mixing with oxygen. When the control mechanism 4 and the propulsion mechanism 5 are below the river surface, the control mechanism 4 will become closed as the drive mechanism 3 operates. With the rotation of the propulsion mechanism 5, a large amount of oxygen will be sprayed into the river water from the equipment, thereby fully contacting and mixing with oxygen.

[0044] Reference Figures 1 to 4 , Figure 6 , Figure 8 In a preferred embodiment, the drive mechanism 3 further includes a control motor 305 fixedly installed on the top of the float 1. The output shaft of the control motor 305 is horizontally mounted on the top of several floats 1 and is sequentially fixedly connected to the top of several drive motors 301. Each venturi tube 303 has an electrically controlled air intake pipe 304 connected through it at its end.

[0045] Workers move the entire equipment to the riverbed, simultaneously securing the float 1 to its designated position using additional ropes. The solar panel 2, exposed to sunlight, converts this light energy into electrical energy, which, under worker control, drives the drive motor 301. When the control mechanism 4 and the propulsion mechanism 5 are above the river surface, the electrically controlled air intake pipe 304 operates synchronously with the drive motor 301, introducing a large amount of air into the venturi tube 303. With the control mechanism 4 in its open / closed state, utilizing Bernoulli's principle, the river water is drawn into the venturi tube 303 and from the rotating propulsion mechanism. The air is sprayed out from the structure 5, thus fully contacting and mixing with oxygen. As the control motor 305 operates, its output rotates and drives all the drive motors 301 to rotate synchronously. When the control mechanism 4 and the propulsion mechanism 5 are submerged below the river surface, the control mechanism 4 is in a closed state. As the drive motor 301 operates, the electrically controlled suction pipe 304 operates synchronously, introducing a large amount of air into the venturi tube 303. As the propulsion mechanism 5 rotates, a large amount of oxygen inside the venturi tube 303 is sprayed from the equipment into the river water, thus fully contacting and mixing with oxygen.

[0046] The top of the float 1 is also equipped with a base 306, which is rotatably connected to the output shaft of the control motor 305 to improve the stability of the output shaft of the control motor 305 during operation.

[0047] Reference Figures 2 to 5 In a preferred embodiment, the control mechanism 4 further includes a movable member 404 slidably mounted in the middle of the straw component 401. The movable member 404 has symmetrically provided through-cavities 405 on both sides, which are connected to the feed cavity 402 and the discharge cavity 403 located on the same side. A float 406 is fixedly connected to the bottom of the movable member 404. A partition 4011 is provided in the middle of the straw component 401, which separates the feed cavity 402 and the discharge cavity 403. The upwardly moving through-cavities 405 are in contact with the bottom of the partition 4011.

[0048] When the control mechanism 4 and the propulsion mechanism 5 are above the river surface, the buoy 406 detaches from the surface and, under its own weight, moves the moving part 404 to its initial position. At this time, the connecting cavity 405 inside the moving part 404 connects to the feed cavity 402 and the discharge cavity 403 on the same side. The bottoms of the two suction tube components 401 need to be below the surface. As the drive motor 301 operates, the electrically controlled suction pipe 304 operates synchronously, introducing a large amount of air into the venturi tube 303. With the feed cavity 402 and the discharge cavity 403 connected, utilizing Bernoulli's principle, the river water is drawn in by negative pressure, entering from the feed cavity 402 and exiting from the discharge cavity 403, reaching the inside of the venturi tube 303. The liquid is sprayed out from the rotating propulsion mechanism 5, thus fully mixing with oxygen. As the control motor 305 operates, its output rotates, causing all drive motors 301 to rotate synchronously. When the control mechanism 4 and propulsion mechanism 5 are submerged below the river surface, the buoy 406 is also submerged. The buoyancy of the buoy 406 pushes the moving part 404 vertically. At this time, the guiding cavity 405 inside the moving part 404 is misaligned with the inlet cavity 402 and outlet cavity 403. The guiding cavity 405 then contacts the bottom of the partition 4011, sealing the suction tube component 401, thus placing the suction tube component 401 in a closed state. The specific state is shown in the attached figure. Figure 11 As shown.

[0049] Reference Figures 1 to 3 , Figures 6 to 8 In a preferred embodiment, the propulsion mechanism 5 includes a turntable 501 fixedly mounted on the end of the shaft 302. A middle rod 502 is fixedly mounted on the other side of the turntable 501. A plurality of first propulsion rods 503 are rotatably mounted on the edge of the turntable 501. A second propulsion rod 504 is rotatably mounted on the end of each first propulsion rod 503. The other ends of the plurality of second propulsion rods 504 are rotatably connected to a counterweight ring 505. The counterweight ring 505 is slidably sleeved on the outside of the middle rod 502.

[0050] When the control mechanism 4 and the propulsion mechanism 5 are above the river surface, the counterweight ring 505 will slide along the outer side of the central rod 502 (sliding towards the turntable 501) due to its own weight. Simultaneously, this sliding pushes the second propulsion rod 504, causing the second propulsion rod 504 to rotate and straighten the first propulsion rod 503, resulting in a folded state. The specific state is as follows: Figure 9As shown, at this time, the drive motor 301 drives the shaft 302 to rotate, and the rotating shaft 302 will also drive the turntable 501, the first push rod 503 and the second push rod 504 to rotate, thereby spraying out the river water that has been sucked up. When the control mechanism 4 and the push mechanism 5 are below the river surface, the counterweight ring 505 will slide along the outside of the middle rod 502 by its own weight (sliding away from the turntable 501). At the same time, the sliding pulls the second push rod 504, causing the second push rod 504 to drive the first push rod 503 to rotate and tilt, becoming an extended state, as shown in the specific state. Figure 10 As shown.

[0051] Reference Figure 7 and Figure 8 In a preferred embodiment, the aeration mechanism 6 includes a plurality of aeration holes 601 and ports 602 that are opened through the surface of the turntable 501. Each first push rod 503 has an aeration row 603 installed inside it, and the aeration row 603 and the ports 602 are connected through each other.

[0052] When the control mechanism 4 and the propulsion mechanism 5 are above the river surface, the second propulsion rod 504 drives the first propulsion rod 503 to rotate and straighten, changing to a folded state, as shown in the specific state. Figure 9 As shown, at this time, the drive motor 301 drives the shaft 302 to rotate, and the rotating shaft 302 will also drive the turntable 501, the first push rod 503 and the second push rod 504 to rotate, thereby guiding the back-suctioned river water from the venturi tube 303 into the port 602 and the aeration hole 601, causing the river water to be sprayed out through the aeration outlet 603 and the aeration hole 601. The first push rod 503 in the folded state can make the water flow sprayed from the aeration outlet 603 wider. When the control mechanism 4 and the push mechanism 5 are below the river liquid surface, the second push rod 504 pulls the first push rod 503 to rotate, changing it to an extended state, thereby increasing the agitation area with the water surface, as shown in the specific state. Figure 10 As shown, the oxygen introduced from the venturi tube 303 will be sprayed directly from the aeration hole 601 and the aeration outlet 603.

[0053] Among them, a connecting rod 4061 is fixedly installed on the top of the buoy 406. The connecting rod 4061 extends vertically into the interior of the suction tube component 401 and is fixedly connected to the moving part 404. The moving part 404 is pushed by the connecting rod 4061. A spring 506 is sleeved on the outside of the middle rod 502. The spring 506 and the counterweight ring 505 are in compression contact to improve the stability of the counterweight ring 505.

[0054] Furthermore, each aeration tube 603 has a flexible hose 604 connected to its bottom, and the flexible hose 604 is connected to the port 602. Each second push rod 504 has a hollowed-out part 605 inside to facilitate the flow of river water sprayed from the aeration tube 603.

[0055] Working principle: When in use, the worker moves the entire equipment to the river and uses an additional rope to fix the float 1 in place at the position to be operated. At this time, the solar panel 2 will be exposed to sunlight, converting light energy into electrical energy, which will drive the drive motor 301 to run under the worker's control.

[0056] When the control mechanism 4 and the propulsion mechanism 5 are above the river surface, the buoy 406 detaches from the surface and, under its own weight, moves the moving part 404 to its initial position. The connecting cavity 405 inside the moving part 404 connects to the feed cavity 402 and the discharge cavity 403 on the same side. The bottoms of the two suction pipe components 401 need to be below the surface. As the drive motor 301 operates, the electrically controlled suction pipe 304 operates synchronously, introducing a large amount of air into the venturi tube 303. With the feed chamber 402 and discharge chamber 403 connected, utilizing Bernoulli's principle, the river water is drawn in by negative pressure, entering from the feed chamber 402 and exiting from the discharge chamber 403, reaching the interior of the Venturi tube 303. Simultaneously, the counterweight ring 505 slides along the outer side of the central rod 502 (sliding towards the turntable 501) due to its own weight. This sliding motion pushes the second push rod 504, causing the second push rod 504 to rotate and straighten the first push rod 503, resulting in a folded state. The specific state is as follows... Figure 9 As shown, at this time, the drive motor 301 drives the shaft 302 to rotate, and the rotating shaft 302 will also drive the turntable 501, the first push rod 503 and the second push rod 504 to rotate, so that the back-suctioned river water is introduced from the venturi tube 303 into the port 602 and the aeration hole 601, causing the river water to be sprayed out through the aeration outlet 603 and the aeration hole 601, and fully mixed and contacted with oxygen;

[0057] As the regulating motor 305 operates, its output rotates, causing all drive motors 301 to rotate synchronously. This causes the control mechanism 4 and the propulsion mechanism 5 to be submerged below the river's surface. At this time, the buoy 406 is also submerged, and the buoyancy of the buoy 406 pushes the moving part 404 to move vertically. The guiding cavity 405 inside the moving part 404 will misalign with the feeding cavity 402 and the discharging cavity 403, thus causing the suction tube component 401 to be in a closed state (e.g., ...). Figure 11As shown), the counterweight ring 505 will slide along the outer side of the central rod 502 under its own weight (sliding away from the turntable 501). While sliding, it pulls the second push rod 504, causing the second push rod 504 to drive the first push rod 503 to rotate and tilt, becoming extended. The specific state is as follows: Figure 10 As shown, at this time, the drive motor 301 drives the shaft 302 to rotate, and the rotating shaft 302 will drive the turntable 501, the first push rod 503 and the second push rod 504 to rotate, thereby stirring the river water. At the same time, the electrically controlled air suction pipe 304 operates synchronously, introducing a large amount of air into the venturi tube 303. The air is sprayed out from the aeration hole 601 and the aeration outlet 603 and fully mixes and contacts with the stirred river water.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A city river aerator, comprising a plurality of evenly distributed floats (1), characterized in that, A drive mechanism (3) is provided on the side of the float (1). The drive mechanism (3) includes a control motor (305) fixedly installed on the top of the float (1) and a drive motor (301) distributed among several floats (1). A shaft (302) is fixed to the output end of the drive motor (301). A venturi tube (303) is sleeved and fixed to the end of the drive motor (301). The shaft (302) is distributed inside the venturi tube (303) and the end of the shaft (302) passes through the inside of the venturi tube (303). The bottom of the Venturi tube (303) is provided with a control mechanism (4) for controlling the flow of gas and liquid. The control mechanism (4) includes a set of suction components (401) fixedly connected to the middle constriction section of the Venturi tube (303). Each suction component (401) is symmetrically provided with a feeding chamber (402) and a discharging chamber (403). The feeding chamber (402) extends through the bottom of the suction component (401), and the discharging chamber (403) is connected to the interior of the Venturi tube (303). The end of the shaft (302) is provided with a propulsion mechanism (5) for mixing water and oxygen. The internal structure of the propulsion mechanism (5) is equipped with an aeration mechanism (6) that provides a water-oxygen flow path. The drive mechanism (3) drives the control mechanism (4) and the propulsion mechanism (5) to operate synchronously, and cooperates with the aeration mechanism (6) to circulate water and oxygen, so as to carry out the mixing of water and oxygen at the liquid surface and below the liquid in a switching mode. The propulsion mechanism (5) includes a turntable (501) fixedly installed at the end of the shaft (302), a middle rod (502) fixedly installed on the other side of the turntable (501), a plurality of first propulsion rods (503) rotatably installed on the edge of the turntable (501), a second propulsion rod (504) rotatably installed at the end of each first propulsion rod (503), and the other ends of the plurality of second propulsion rods (504) rotatably connected to a counterweight ring (505), the counterweight ring (505) slidingly sleeved on the outside of the middle rod (502); A spring (506) is sleeved on the outer side of the middle rod (502), and the spring (506) and the counterweight ring (505) are in compression contact.

2. The urban river propulsion aerator according to claim 1, characterized in that, The output shaft of the control motor (305) is horizontally mounted on the top of several floats (1) and is sequentially fixedly connected to the top of several drive motors (301). Each venturi tube (303) has an electrically controlled air intake tube (304) connected through it at its end.

3. The urban river propulsion aerator according to claim 1, characterized in that, The control mechanism (4) further includes a movable part (404) slidably installed in the middle of the straw component (401). The movable part (404) has symmetrically provided through-cavities (405) on both sides. The through-cavities (405) are connected to the feed cavity (402) and the discharge cavity (403) located on the same side. A float (406) is fixedly connected to the bottom of the movable part (404). A partition (4011) is provided in the middle of the straw component (401). The partition (4011) separates the feed cavity (402) and the discharge cavity (403). The upwardly moving through-cavities (405) contact the bottom of the partition (4011).

4. The urban river propulsion aerator according to claim 3, characterized in that, The aeration mechanism (6) includes a plurality of aeration holes (601) and ports (602) that are opened through the surface of the turntable (501). Each of the first push rods (503) has an aeration row (603) installed inside it. The aeration row (603) and the ports (602) are connected through each other.

5. The urban river propulsion aerator according to claim 4, characterized in that, A connecting rod (4061) is fixedly installed on the top of the buoy (406), and the connecting rod (4061) extends vertically into the interior of the suction tube component (401) and is fixedly connected to the moving part (404).

6. The urban river propulsion aerator according to claim 5, characterized in that, Each of the aeration tubes (603) has a flexible tube (604) that is connected through to the bottom, and the flexible tube (604) is connected to the port (602) accordingly.

7. The urban river propulsion aerator according to claim 4, characterized in that, Each of the second push rods (504) has a through-hole (605) inside.

8. The urban river propulsion aerator according to claim 2, characterized in that, The top of the pontoon (1) is also equipped with a base (306), which is rotatably connected to the output shaft of the control motor (305), and the top of the pontoon (1) is equipped with a solar panel (2).

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