Miniature fluid pump

Abstract

The invention particularly relates to a miniature fluid pump. The miniature fluid pump comprises an annular channel, a protruding block and a stopping block, wherein the protruding block and the stopping block are located in an annular channel and divide the annular channel into two independent cavities, a liquid inlet and a liquid outlet which both communicating with the annular channel are formed in the two sides of the stopping block correspondingly, the protruding block can move along the annular channel, when the protruding block moves, the cavity located on one side of the liquid inlet is gradually enlarged, the cavity located on one side of the liquid outlet is gradually reduced, and when the protruding block moves to the position of the stopping block, the stopping block retreats from the annular channel to form avoidance fit. A toothpaste flowing channel is formed by arranging the annular channel, the liquid inlet and the liquid outlet, the cavity communicating with the liquidinlet is gradually enlarged and the new cavity is formed again when the cavity communicating with the liquid inlet is enlarged to the maximum size through cooperation of the protruding block and thestopping block, the cavity communicating with the liquid outlet is gradually shrunk, and therefore automatic continuous extrusion of toothpaste can be achieved, the structure is simple, the size is small, use is very convenient and reliable, and only power needs to be arranged to drive the protruding block to rotate along the annular channel.

Description

technical field [0001] The invention relates to the technical field of fluid pumps, in particular to a micro fluid pump. Background technique [0002] The oral cavity is an important part of the human body. Oral health can ensure that people can chew food fully, enjoy delicious food, obtain sufficient nutrition, and avoid affecting physical and mental health due to oral diseases. At present, people use toothbrushes to clean the oral cavity. There are many types of toothbrushes, including ordinary mechanical toothbrushes, electric toothbrushes, ultrasonic toothbrushes and so on. Among them, the common mechanical toothbrush is the most common, it includes a brush handle and a brush head, the brush head is provided with bristles, and the toothbrush is manually controlled by the user to move back and forth to clean the teeth; the structure of the electric toothbrush is much more complicated, and it uses electric energy Drive the brush head to drive the bristles to move back and...

AI Technical Summary

Problems solved by technology

[0003] Although there are many kinds of toothbrushes, it is still necessary to prepare toothpaste when brushing teeth at present. Before brushing teeth, the toothpaste is squeezed onto the bristles before brushing teeth. There are many shortcomings in this design: first, for some disabled persons, it is difficult to Fix the toothbrush and squeeze toothpaste at the same time; secondly, for people who travel frequently, it is inconvenient to carry both toothbrush and toothpaste; thirdly, the toothpaste squeezed onto the brush head is extremely easy to brush teeth Falling, causing waste; Fourth, with the progress of brushing, there is a lot of toothpaste and foam at the beginning of brushing, and when brushing later, there is basically no toothpaste, and the whole brushing process is very uneven

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