Miniature irrigation and drainage pump

Abstract

The invention provides a miniature irrigation and drainage pump. The miniature irrigation and drainage pump is structurally innovated on the basis of a traditional irrigation and drainage pump and hasthe characteristics of simple structure and small size. The hollow structure of a designed pump shaft is directly connected with a motor spindle through a key. The highest point of the inner diameterof a water inlet pipe is flush with the highest point of the inner diameter of an impeller inlet, and the lowest point of the inner diameter of the water inlet pipe is higher than the central line position of an impeller. The light weight of the pump is realized through the structural innovation of the water inlet pipe and the pump body structure of a sprinkling irrigation pump.

Description

Technical field [0001] The invention belongs to the field of machinery, in particular to a small drainage and irrigation pump. Background technique [0002] Drainage and irrigation pumps are widely used in the transportation of small-flow liquid materials such as gardens, fields, and households. They usually have the characteristics of self-priming, simple structure, and low price. In the structural design of traditional sprinkler irrigation pumps, the pump shaft is mostly connected to the motor shaft through a coupling, and the pump is designed with an overly long water inlet pipe, and other structures inside the pump chamber are also relatively complicated, with complex manufacturing and high quality. In order to simplify the structure of the drainage and irrigation pump, make it lighter and more practical, in the present invention, the structural characteristics of the pump shaft itself are used to directly connect it to the main shaft of the motor, and the structure is i...

AI Technical Summary

Problems solved by technology

[0003] The inlet pipe joint of traditional irrigation and drainage pumps is often much higher than the highest point of the impeller inlet, and there is a long water inlet pipeline between the inlet pipe connector and the impeller inlet, which greatly increases the volume and weight of the irrigation and drainage pump itself. The structural design is also more complicated

On the other hand, the pump shaft of the traditional drainage and irrigation pump is mostly connected with the motor shaft through a coupling, and the structure is heavy and complicated.

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