Pump head of self-priming centrifugal pump

Abstract

The invention provides a pump head of a self-priming centrifugal pump, and belongs to the technical field of machinery. By means of the pump head of the self-priming centrifugal pump, the problem suchas poor purification effect of an existing self-priming centrifugal pump is solved. The pump head of the self-priming centrifugal pump comprises a pump body and a bracket, wherein the pump body is mounted on the bracket; an impeller is arranged between the bracket and the pump body; the pump body is internally provided with a flow passage communicating with the bracket; the pump body is providedwith a water inlet and a water outlet pipe communicating with the flow passage; the connection position of the inner walls of the water inlet and the flow passage is provided with a check gate; the position, above the water inlet, of the pump body is provided with a water filling nozzle communicating with the flow passage; a port of the water filling nozzle is provided with a cover; a filtering device extending into the flow passage is internally arranged in the water filling nozzle; the filtering device comprises a skeleton and a sieve; the skeleton being a rotating body is composed of a plurality of supporting strips; and the sieve is wrapped between every two adjacent supporting strips. The pump head of the self-priming centrifugal pump has the advantages of good purification effect, convenient cleaning and the like.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a self-priming centrifugal pump, in particular to a pump head of the self-priming centrifugal pump. Background technique [0002] The self-priming pump is an electric device used to pump water and its mixture. It belongs to the self-priming centrifugal pump. It uses the rotation of the impeller to make the water centrifugally move to work. It has the advantages of compact structure, convenient operation, stable operation and easy maintenance. Easy to use, high efficiency, long life, and strong self-priming ability. The traditional self-priming pumps on the market generally directly pump the liquid into the pump and then output the liquid from the outlet pipe through the centrifugal action of the impeller. The water quality cannot meet the requirements for use. [0003] In response to the above-mentioned problems, people have made various improvements to self-priming pumps, and ...

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Problems solved by technology

[0004] The above-mentioned self-priming pump with magnetic purification function is provided with a filter channel, and a magnet is arranged in the filter channel. Although it can purify water to a certain extent, the magnetic purification and adsorption are mainly some magnetic metals. Non-magnetic impurities, can not achieve the desired effect on non-magnetic impurities

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