Anti-backflow self-suction water pump

Abstract

The anti-backflow self-suction water pump comprises a machine shell, a filter shell is arranged on the bottom wall of the machine shell, a first cavity is formed in the machine shell, an anti-backflow device is arranged in the first cavity, a second cavity is formed in the filter shell, and a piston device, a clearing device, a water suction device and a detection device are arranged in the second cavity; when the water pump works, the water pumping capacity of the water pump can be improved, garbage on the outer side of the filter shell of the water pump is removed, the filter shell is prevented from being blocked by the garbage, meanwhile, the capacity of generating negative pressure in the water pump can be effectively improved through the push plate, the working efficiency of the self-priming pump is improved, and the garbage attached to the outer wall of the filter shell can be removed through the sweeping rod; the garbage is prevented from blocking holes in the filter shell, manual garbage removal in the later period is avoided, accumulated water with the water level lower than that of the filter shell can be sucked through the water suction pipe, and the water pumping capacity and environment adaptability of the water pump are improved.

Description

technical field [0001] The invention relates to the technical field of water pumps, in particular to an anti-backflow self-priming water pump. Background technique [0002] The current self-priming water pump has the following defects: [0003] First, the existing self-priming pump has poor self-priming ability, and cannot effectively pump out liquid or empty air, resulting in low suction lift, which reduces the working efficiency of the self-priming pump to a certain extent; [0004] Second, when the water pump is working, there will be sediment and garbage blocking the filter shell on the outer wall of the pump, resulting in the inability to clean the impurities on the outer wall of the pump, reducing the service life and efficiency of the pump; [0005] Third, when the filter housing of the water pump is high, there will be a part of accumulated water that cannot be extracted, and it needs to be manually removed, which increases people's labor pressure. Contents of the...

AI Technical Summary

Problems solved by technology

[0003] First, the existing self-priming pump has poor self-priming ability, and cannot effectively pump out liquid or empty air, resulting in low suction lift, which reduces the working efficiency of the self-priming pump to a certain extent;

[0004] Second, when the water pump is working, there will be sediment and garbage blocking the filter shell on the outer wall of the pump, resulting in the inability to clean the impurities on the outer wall of the pump, reducing the service life and efficiency of the pump;

[0005] Third, when the filter housing of the water pump is high, there will be a part of accumulated water that cannot be extracted, and it needs to be manually removed, which increases people's labor pressure

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