Minitype water pump

Abstract

The invention relates to a minitype water pump. The minitype water pump comprises a pump body, a transmission device and a pump cover; the transmission device is arranged in the pump body, and the pump body is movably connected with the pump cover; an adjusting plate is arranged on the pump cover, an arc-shaped adjusting hole is formed in the adjusting plate, and a plurality of convex ribs distributed equidistantly are arranged on one inner side of the arc-shaped adjusting hole; an adjusting rod vertical to a pump cover body is arranged on the upper end face of the pump cover body, and the adjusting rod is positioned in the arc-shaped adjusting hole; the transmission device comprises an annular magnetic ring, and grooves A are symmetrically formed in the end face of the end, near an impeller, of the annular magnetic ring; a channel for a transmission shaft to pass through is formed in the pump body; and a heat-dissipating channel is formed in the channel along the long-axis extending direction. The minitype water pump has the advantages of effectively controlling the quantity of water flowing out from a water outlet of the pump cover according to the pressure of the water pump, avoiding dry burning phenomenon and prolonging the service life of the water pump.

Description

technical field [0001] The invention belongs to a water pump device, in particular to a miniature water pump. Background technique [0002] A water pump is a hydraulic machine that uses the effect of atmospheric pressure to lift water from a low place to a high place. It is composed of water pump, power machinery and transmission device. It is widely used in farmland irrigation and drainage, as well as water supply and drainage in industrial and mining enterprises and towns. [0003] The pumps widely used at present include pump cover, pump body, connection seat, transition connection seat, bearing seat, bearing, transmission shaft, transmission device, impeller, water seal, wherein, there is a hole on the pump body that can accommodate the transmission shaft to pass through Due to the high-efficiency rotation of the transmission shaft, a large amount of heat will be left in the channel, which will have a certain impact on the transmission effect, and then will affect the ...

AI Technical Summary

Problems solved by technology

[0003] The pumps widely used at present include pump cover, pump body, connection seat, transition connection seat, bearing seat, bearing, transmission shaft, transmission device, impeller, water seal, wherein, there is a hole on the pump body that can accommodate the transmission shaft to pass through Due to the high-efficiency rotation of the transmission shaft, a large amount of heat will be left in the channel, which will have a certain impact on the transmission effect, and then will affect the service life of the pump; in addition, the existing pump cover is only closed at one end And the cover body with one end open can not effectively control the amount of water flowing out from the outlet of the pump cover according to the pressure in the pump; generally there is a magnetic ring between the transmission shaft and the impeller, but the existing transmission device is prone to dry burning

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