Oxygenation impeller

Abstract

The utility model relates to an oxygenation impeller which comprises a connecting part and a plurality of first blades located on the connecting part, the connecting part is fixed with the first blades, the connecting part is connected with an output shaft of a driving motor, the connecting part comprises a connecting column, an insertion hole is formed in the connecting column, and a hole anti-rotation part is arranged on the hole wall of the insertion hole. A shaft anti-rotation part is correspondingly arranged on an output shaft of the driving motor, the output shaft is inserted into the insertion hole, and the shaft anti-rotation part is matched with the hole anti-rotation part to enable the connecting column and the first blade to synchronously rotate along with the output shaft of the driving motor. The output shaft and the insertion hole are directly installed in a direct insertion mode, the smoothness of the peripheral face of the connecting column is guaranteed, the situation that a fastener protruding out of the peripheral face of the connecting column generates a negative pressure area when rotating, and water inflow is blocked is avoided, and the water inflow amount of a water pumping cavity in the cylinder is increased; the shaft anti-rotation part is matched with the hole anti-rotation part so that the connecting column can synchronously rotate along with the output shaft, and the rotating stability of the connecting column is guaranteed.

Description

Technical Field

[0001] The utility model relates to an oxygen-increasing impeller, belonging to the technical field of impellers. Background Art

[0002] Currently, all oxygen-enhancing impellers on the market rely on a drive motor to rotate the blades, pushing the water flow direction to achieve water pumping, stirring the water into the air, mixing the water and air, and increasing the water's oxygen content. In the prior art, the connection between the drive motor and the impeller is usually to insert the output shaft of the drive motor into the bottom of the impeller, and then insert bolts or other fasteners horizontally into the bottom of the impeller to fix the output shaft of the drive motor and the impeller. After the fastener is installed, its end is exposed from the impeller. However, during the high-speed rotation of the impeller and the fastener, the end of the fastener creates a circle of negative pressure on the outside of the impeller. This negative pressure area blocks part of the water inlet of the water pumping chamber, greatly reducing the water inflow of the water pumping chamber, resulting in a smaller or even no water splash during the rotation of the impeller, affecting its use. Utility Model Content

[0003] The purpose of the utility model is to provide an oxygenating impeller which increases the water inlet volume of the water pumping chamber in view of the shortcomings of the prior art.

[0004] To achieve the purpose, the technical solution adopted by this utility model is:

[0005] An oxygen enrichment impeller comprises a connecting portion and a plurality of first blades located on the connecting portion, the connecting portion being fixed to the first blades and connected to the output shaft of a driving motor, the connecting portion comprising a connecting column, an insertion hole being formed in the connecting column, a hole anti-rotation portion being provided on the hole wall of the insertion hole, a shaft anti-rotation portion being correspondingly provided on the output shaft of the driving motor, the output shaft being inserted into the insertion hole, the shaft anti-rotation portion cooperating with the hole anti-rotation portion to enable the connecting column and the first blades to rotate synchronously with the output shaft of the driving motor.

[0006] As a further optimization of the above technical solution: the hole anti-rotation portion is a hole anti-rotation plane, and correspondingly the shaft anti-rotation portion is a shaft anti-rotation plane.

[0007] As a further optimization of the above technical solution: it also includes a cylinder, and the first blade is fixed to the inner circumference of the cylinder.

[0008] As a further optimization of the above technical solution: a plurality of drainage holes are formed on the top of the cylinder, and the plurality of drainage holes are arranged around the center of the cylinder.

[0009] As a further optimization of the above technical solution: the plurality of drainage holes include a plurality of drainage circular holes and a plurality of drainage U-shaped holes.

[0010] As a further optimization of the above technical solution: the bottom of the first blade protrudes from the lower end surface of the cylinder and forms a guide portion.

[0011] Compared with the prior art, the output shaft and the insertion hole in the utility model are directly installed by straight insertion, eliminating the fasteners in the prior art that are horizontally inserted on the connecting column for installing the output shaft of the driving motor, ensuring the smoothness of the outer peripheral surface of the connecting column, avoiding the fasteners protruding from the outer peripheral surface of the connecting column to generate a negative pressure area during rotation and block the water inlet, thereby increasing the water inlet volume of the water pumping chamber in the cylinder; the shaft anti-rotation part and the hole anti-rotation part cooperate to make the connecting column rotate synchronously with the output shaft, preventing the connection between the output shaft and the insertion hole from slipping and the output shaft from being unable to drive the connecting column to rotate synchronously, thereby ensuring the stability of the rotation of the connecting column. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of the utility model.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another angle. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Figure 1-2 As shown, an aeration impeller includes a barrel 1, a connecting portion, and a plurality of first blades 4 located between the barrel 1 and the connecting portion. The outer circumference of the connecting portion is fixed to the first blades 4, and the connecting portion is connected to the output shaft of a drive motor, so that the drive motor drives the connecting portion and the first blades 4 to rotate.

[0015] In the above technical solution, the connection portion includes a connecting column 3, which has an insertion hole 31 formed therethrough. The hole wall of the insertion hole 31 is provided with a hole anti-rotation portion. The output shaft of the driving motor is correspondingly provided with a shaft anti-rotation portion. The output shaft is inserted into the insertion hole 31. The shaft anti-rotation portion cooperates with the hole anti-rotation portion to allow the connecting column 3 to rotate synchronously with the output shaft, preventing the connection between the output shaft and the insertion hole 31 from slipping, which would cause the output shaft to be unable to drive the connecting column 3 to rotate synchronously, thereby ensuring the rotation stability of the connecting column 3. The hole anti-rotation portion is specifically a hole anti-rotation plane 32, and the shaft anti-rotation portion is correspondingly a shaft anti-rotation plane. The shaft anti-rotation plane is aligned with the hole anti-rotation plane 32, and then the output shaft is inserted into the insertion hole 31. The output shaft and the insertion hole 31 are directly installed by direct insertion, eliminating the fasteners in the prior art that are horizontally inserted on the connecting column 3 for installing the output shaft of the drive motor, ensuring the smoothness of the outer surface of the connecting column 3, and avoiding the situation where the fasteners protruding from the outer surface of the connecting column 3 generate a negative pressure area during rotation and block the water inlet, thereby increasing the water inlet volume of the water-lifting chamber in the cylinder 1.

[0016] In the above technical solution, the first blade 4 is an arc-shaped plate that is arranged obliquely, and the first blade 4 is a structure of uneven thickness.

[0017] In the above technical solution, the connecting portion further includes a connecting tube 2 positioned between the connecting column 3 and the cylindrical body 1, and a plurality of second blades 5 positioned between the connecting column 3 and the connecting tube 2. The second blades 5 are fixed to the inner circumference of the connecting tube 2 and the outer circumference of the connecting column 3. The second blades 5 are inclined arc-shaped plates, and the inclination direction of the second blades 5 is consistent with the inclination direction of the first blades 4. The second blades 5 also have unequal thickness structures.

[0018] The unequal thickness structure makes the shapes of the first blade 4 and the second blade 5 conform to the Bernoulli principle. When the impeller rotates, the upper surface of the first blade 4 and the upper surface of the second blade 5 push the water, and the low-pressure area on the lower surface of the first blade 4 and the lower surface of the second blade 5 generates a vacuum negative pressure area, which greatly improves the self-priming ability of the overall structure. As the impeller rotates, more water is sucked into the cylinder 1, disturbing more water and increasing the spray of water, which greatly improves the working efficiency of the first blade 4 and the second blade 5 and improves the effect of increasing the oxygen content in the water.

[0019] In the above technical solution, the inclination angle of the second blade 5 is different from that of the first blade 4, which enables the second blade 5 and the first blade 4 to push the water to different heights, generating multi-layer water splashes, which are better mixed with the air, more efficiently achieve aeration, and increase the oxygen content in the water.

[0020] In the above technical solution, all second blades 5 include a plurality of upper blades 51 and a plurality of lower blades 52. The upper blades 51 and the lower blades 52 are arranged in two staggered layers, and the inclination angles of the upper blades 51 and the lower blades 52 are the same. The lower blades 52 drive the water upward. When the water reaches a certain height, the upper blades 51 push the water upward again, completing the secondary pressurization.

[0021] In the above technical solution: the first blade 4 is fixed to the inner circumference of the cylinder 1, that is, the first blade 4 is fixed to the outer circumference of the connecting cylinder 2 and the inner circumference of the cylinder 1. A plurality of inclined fins 6 are provided at the bottom of the outer circumference of the cylinder 1, and the inclination direction of the fins 6 is opposite to the inclination direction of the first blades 4. In this embodiment, the first blade 4 is inclined downward in a clockwise direction, while the fins 6 are inclined downward in a counterclockwise direction. The fins 6 are arc-shaped, and the fins 6 are of unequal thickness. There are multiple fins 6 and they are evenly arranged on the outer circumference of the cylinder 1. The driving motor drives the connecting part, the first blade 4, the cylinder 1 and the fins 6 to rotate synchronously, and the direction of the force generated when the fins 6 rotate is opposite to the direction of the force generated when the first blades 4 and the second blades 5 rotate. During rotation, first blades 4 and second blades 5 push the water upward and exert a downward force on the impeller. Fins 6 also push water and air downward, exerting an upward force on the impeller. This partially offsets the downward force exerted by first and second blades 4 and 5 on the impeller. This significantly reduces the downward force exerted by the entire device, significantly alleviating turbulence around the device. This results in a more stable and less swaying device, resulting in a more stable and beautiful splash. This also reduces the buoyancy required for the device, allowing for smaller buoyancy tanks. The uneven thickness structure also ensures that the shape of fins 6 conforms to Bernoulli's principle, significantly enhancing self-priming capability and operating efficiency.

[0022] At the same time, the water-air mixture pushed downward by the rotating fins 6 is drawn into the interior by the rotating first and second blades 4, 5. Since the first and second blades 4, 5 no longer push and draw in water alone, but a mixture of water and air, and the specific gravity of the water-air mixture is lower than that of water alone, the required torque of the drive motor is greatly reduced. Under the same speed and motor conditions, the required motor current is lower, which is more energy-efficient and environmentally friendly. At the same time, since the water-air mixture has already been preliminarily mixed within the barrel 1, the oxygen content in the water is initially increased. When the water is thrown into the air, it further mixes with the air, thereby better achieving the purpose of aeration and increasing the oxygen content of the water.

[0023] In the above technical solution: a plurality of drainage holes are formed on the top of the cylinder 1, and the plurality of drainage holes are arranged around the center of the cylinder 1. The plurality of drainage holes include a plurality of circular drainage holes 11 and a plurality of U-shaped drainage holes 12. The driving motor drives the connecting part and the cylinder 1 to rotate, and the first blade 4 and the second blade 5 rotate and push the water body to spray upward. Because the inclination angle of the second blade 5 is different from that of the first blade 4, it can push the water body to different heights. Due to the centrifugal force caused by the rotation, the water body is thrown outward in the form of mushroom-shaped water splashes through the circular drainage holes 11, the U-shaped drainage holes 12 and the top of the cylinder 1. The circular drainage holes 11 and the U-shaped drainage holes 12 can allow the water flowing in the cylinder 1 to be quickly thrown out, thereby increasing the amount of water thrown out per unit time, increasing the amount of water directly in contact with the air per unit time, and improving the oxygenation efficiency.

[0024] In the above technical solution: the bottom of the first blade 4 protrudes from the lower end surface of the cylinder 1 and forms a guide part 7, which brings the water to form a vortex, making it easier for the water to enter the cylinder 1 along the curved surface of the first blade 4.

[0025] The first blade 4 and the second blade 5 in the present aeration impeller are both unequal thickness structures in accordance with the Bernoulli principle, which not only can disturb the water body to flow upward, but also greatly enhance the self-priming ability, so as to disturb more water and increase the spray of water, greatly improving the work efficiency and the oxygenation effect; the first blade 4 and the second blade 5 constitute a double-layer inclined arc plate at different angles, and cooperate with the water discharge circular hole 11 and the water discharge U-shaped hole 12 on the cylinder body to achieve the water body being thrown into the air in different directions and at different heights, making the water spray higher and larger, better mixed with the air, and more efficiently achieving aeration and increasing the oxygen content in the water; the outer peripheral surface of the cylinder body 1 is provided with a reverse fin plate 6, which can be used to seal the outer surface of the cylinder body 1 The water-air mixture in the upper part is pushed downward, so that the impeller has an upward reverse force, which can be used for a smaller buoyancy box and can also allow air to enter the interior of the cylinder 1. Under the stirring of the impeller, the oxygen content of the water body is initially increased. At the same time, because the impeller pushes the water containing air at this time, the total mass of the water body pushed by the entire device becomes lighter, the required torque of the driving motor is greatly reduced, and it is more energy-saving and environmentally friendly. At the same time, the reverse fins 6 generate an upward reverse force, which can offset a part of the downward force on the impeller generated by the first blades 4 and the second blades 5 when pushing the water flow, thereby effectively stabilizing the entire device and making the water splash more stable, so as to achieve better aeration and increase the oxygen content of the water body.

[0026] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should fall within the scope of protection of the present invention.

Claims

1. An oxygen-increasing impeller, comprising a connecting portion and a plurality of first blades (4) located on the connecting portion, wherein the connecting portion is fixed to the first blades (4), and the connecting portion is connected to the output shaft of a driving motor, characterized in that The connecting portion comprises a connecting column (3), an insertion hole (31) is formed in the connecting column (3), a hole anti-rotation portion is provided on the hole wall of the insertion hole (31), and a shaft anti-rotation portion is correspondingly provided on the output shaft of the driving motor. The output shaft is inserted into the insertion hole (31), and the shaft anti-rotation portion cooperates with the hole anti-rotation portion to enable the connecting column (3) and the first blade (4) to rotate synchronously with the output shaft of the driving motor.

2. The oxygen-enhancing impeller according to claim 1, characterized in that The hole anti-rotation portion is a hole anti-rotation plane (32), and correspondingly, the shaft anti-rotation portion is a shaft anti-rotation plane.

3. The oxygen-enhancing impeller according to claim 1, characterized in that It also includes a cylinder (1), and the first blade (4) is fixed to the inner circumferential surface of the cylinder (1).

4. An oxygenation impeller according to claim 3, characterized in that The top of the cylinder (1) is provided with a plurality of drainage holes, and the plurality of drainage holes are arranged around the center of the cylinder (1).

5. The oxygen-enhancing impeller according to claim 4, characterized in that The plurality of drainage holes include a plurality of circular drainage holes (11) and a plurality of U-shaped drainage holes (12).

6. The oxygen-enhancing impeller according to claim 3, characterized in that The bottom of the first blade (4) protrudes from the lower end surface of the cylinder (1) and forms a flow guide portion (7).

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