A pressurized anti-backflow type water pump

Abstract

The invention discloses a pressurized anti-countercurrent water pump. The pressurized anti-countercurrent water pump comprises a base and a pump body arranged on the base, wherein the pump body is provided with a first check valve; a first valve body is provided with a pressurization opening; a pushing device is arranged in the pressurization opening; a sliding block on the pushing device is arranged in the pressurization opening; the base is provided with a pressurization device; the pressurization device is provided with a driving connecting rod; the driving connecting rod is provided with a pressing block; the pump body is provided with a sealed cavity; the pump body is provided with an exhausting device; a floating disc is arranged in the exhausting device and provided with a connecting rod; the pump body is provided with a second check valve which comprises a second valve body and a sealing cover, and the two ends of the sealing cover are fixedly connected with baffles; a pressing cover pipe sleeve is arranged in a driving cavity, a spring is arranged in the pressing cover pipe sleeve, and a driving rod is arranged on the pressing cover pipe sleeve and connected with the connecting rod. The pressurized anti-countercurrent water pump can pressurize irrigation water in the pump body, increases the outlet water amount, improves the natural irrigation efficiency, meanwhile prevents irrigation water from flowing back into the pump body, and prolongs the service life.

Description

technical field [0001] The invention relates to a water pump, in particular to a pressurized anti-backflow type water pump. Background technique [0002] In recent years, with the adjustment of the agricultural structure, farmers have made full use of the resources of low mountains, gentle slopes and barren beaches to develop high-efficiency agriculture on a large scale, but these plots are often difficult to irrigate by gravity. Therefore, it is necessary to use a water pump for water supply. The water pump is a kind of agricultural machinery, which is a machine for conveying liquid or liquid pressurization. When choosing a water pump, it is necessary to choose according to local conditions, and the user needs to fully consider the actual situation of the local ground conditions, water source and water lifting height. Moreover, the economic performance of the pump also needs to be considered, generally considering the head and flow of the pump and the selection of supporti...

AI Technical Summary

Problems solved by technology

When the water pump is irrigating the land, it is mainly powered by the motor, pumping water from the water pipe into the water pump, the water pump pressurizes the water, and the water is sent to the pipeline after the water is pressurized, and the land is self-flowing Irrigation, but because there will be a certain resistance loss when the water flows through the water pipe and the pump body, the actual head is generally 10% to 20% lower than the expected head, and the water output will also decrease accordingly, which will affect the natural irrigation efficiency; After the natural irrigation of the block is completed, the water will flow backwards, causing the water pump to bear the weight of the water, causing pressure in the pump body of the water pump, and the water pump is prone to damage

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