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Direct-current centrifugal garden pump

A garden pump and centrifugal technology, applied to pumps, components of pumping devices for elastic fluids, pump devices, etc., can solve problems such as limited use of the environment

Pending Publication Date: 2022-07-08
宁波君禾智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing centrifugal pumps are all connected to power lines, which limits their use environment and makes it difficult to use them in outdoor, field and other environments

Method used

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  • Direct-current centrifugal garden pump
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  • Direct-current centrifugal garden pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example one, as figure 1 , figure 2 Shown: a DC centrifugal garden pump, comprising a casing 21 and a pump body 3 provided with a water inlet 1 and a water outlet 2, and the casing 21 is connected with the pump body 3;

[0053] The pump body 3 is provided with a pump chamber 4 and an impeller chamber 5, and a water inlet pipe 6 and a return pipe 7 are arranged in the pump chamber 4. The water inlet pipe 6 is connected to the water inlet 1 and the impeller chamber 5, and the return pipe 7 connects the pump. The cavity 4 is communicated with the water inlet pipe 6, and a one-way valve is arranged in the return pipe 7, and the valve cover 8a of the one-way valve is located on the side away from the impeller; the return pipe is facing the direction of the impeller, and the closed one-way valve cover 8a There will be a force in the direction of the impeller, so the closed one-way valve will not affect the performance of the pump because the pressure in the pump chamber 4 d...

Embodiment 2

[0061] Example two, as Figure 3 to Figure 5 As shown, the front side of the inner cylinder 13 is open, the rear side of the inner cylinder 13 is flat, and the edge of the rear side of the inner cylinder 13 is provided with two arc-shaped limit pieces 16, two arc-shaped limit pieces 16 Relatively arranged, the arc-shaped limiting piece 16 matches the part of the housing 21 of the motor 15 . In the present application, the arc-shaped limiting piece 16 has a certain limiting effect on the motor 15 , and also facilitates the assembly of the motor 15 .

[0062] The inner cylinder 13 has a stepped circular truncated structure as a whole, and there is an included angle between the stepped surface of the outer surface of the inner cylinder 13 and the central axis of the inner cylinder 13 . That is, the stepped surface of the outer surface of the outer cylinder 14 is inclined. The inner wall surface of the inner cylinder 13 has a stepped circular truncated structure, and the stepped...

Embodiment 3

[0067] Example three, as Figure 1 to Figure 2 , Figure 6 to Figure 7 As shown, the pump body 3 is provided with a battery compartment 22 and a control compartment 23, the motor 15 and the control device are installed in the control compartment 23, the battery 24 is detachably installed in the battery compartment 22, and the battery 24 supplies power for the motor 15 and the control device.

[0068] The housing 21 is provided with a handle 25 . Specifically, the handle 25 is located above the control compartment 23 , and the handle 25 is located between the pump body 3 and the battery compartment 22 .

[0069]The battery compartment 22 includes a compartment shell 26 and an upper flip cover 27. The rear side of the upper flip cover 27 is connected to the compartment shell 26 through a rotating shaft. The front side of the upper flip cover 27 is provided with a buckle 28. The handle The rear side of 25 is provided with a bayonet 29 ; the latch 28 is partially embedded in the...

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Abstract

The direct-current centrifugal garden pump is characterized in that the direct-current centrifugal garden pump comprises a shell and a pump body provided with a water inlet and a water outlet, and the shell is connected with the pump body; a pump cavity and an impeller chamber are arranged in the pump body, a water inlet pipeline and a backflow pipeline are arranged in the pump cavity, the water inlet pipeline communicates with the water inlet and the impeller chamber, the backflow pipeline communicates the pump cavity and the water inlet pipeline, a one-way valve is arranged in the backflow pipeline, and a valve cover of the one-way valve is located on the side away from the impeller. The impeller chamber comprises a rear sealing cover, the rear sealing cover comprises an inner cylinder and an outer cylinder, a reinforcing structure assembly is distributed between the inner cylinder and the outer cylinder, the reinforcing structure assembly is connected with the inner cylinder and the outer cylinder, a circle of flanging is arranged on the edge of the outer cylinder, the flanging is of a stepped annular structure, and the reinforcing structure assembly is connected with the flanging. The structure of the rear sealing cover and the shaft sealing piece connected with the rear sealing cover in a matched mode are optimized, the rear sealing cover is formed by plastic pieces, and the production cost of the whole product is reduced.

Description

technical field [0001] The application relates to the field of DC centrifugal pumps, in particular to a DC centrifugal garden pump. Background technique [0002] The working principle of the self-priming centrifugal pump is to use the centrifugal force of the impeller. Before the pump works, the pump body and the water inlet pipe must be filled with water to form a vacuum state. When the impeller rotates rapidly, the blades make the water rotate quickly, and the rotating water is Under the action of centrifugal force, it flies away from the impeller. After the water in the pump is thrown out, the central part of the impeller forms a vacuum area, and the water in the original water is pressed into the water inlet pipe through the pipe network under the action of atmospheric pressure (or water pressure). This cycle is endless, and continuous pumping can be achieved. [0003] The existing self-priming centrifugal pumps are equipped with conventional one-way valves. The convent...

Claims

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Application Information

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IPC IPC(8): F04D13/06F04D29/00F04D29/10F04D29/42
CPCF04D13/06F04D29/007F04D29/106F04D29/426
Inventor 张君波杨克洪利兵
Owner 宁波君禾智能科技有限公司
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