A reverse suction drinking water switch

Abstract

The embodiment of the invention provides a back-suction type water drinking switch, and relates to the technical field of a household appliance provided with the water drinking switch; the invention aims at solving the problems of a water drinking switch in the prior art, which is low in reliability and high in production cost when being closed to avoid the discharge of residual water. The back-suction type water drinking switch comprises a water drinking pipe, a valve element and a water outlet nozzle, wherein a water outlet is formed in the lower end of the water drinking pipe; one end of the valve element extends into the water outlet and the other is located outside the water outlet and is connected to the water outlet nozzle; the valve element is capable of moving between an opened position and a closed position; a first telescopic seal cartridge, a connecting pipe and a second telescopic seal cartridge are sequentially arranged between the water outlet and the water outlet nozzle from top to bottom; a water flow passage is defined by the inner wall of the first telescopic seal cartridge, the inner wall of the connecting pipe, the inner wall of the second telescopic seal cartridge and the outer wall of the valve element; and the water flow passage communicates with a water outlet passage of the water outlet nozzle. The back-suction type water drinking switch is applicable to the household appliance provided with the water drinking switch.

Description

technical field [0001] The invention relates to the technical field of household appliances with a drinking water switch, in particular to a back-suction drinking water switch. Background technique [0002] With the continuous development of science and technology and the continuous improvement of people's living standards, in order to meet people's different living needs, various household appliances have been produced one after another, such as water dispensers, which have almost become necessary household appliances for every family. . However, in the process of using the water dispenser, the user finds that after the valve core blocks the water outlet located at the lower end of the drinking water pipe, there is still residual water in the water storage space between the lower end of the water outlet and the water outlet, and this part of the residual water will Since the flow out of the spout by its own weight affects the surrounding environment, if the user takes hot ...

AI Technical Summary

Problems solved by technology

[0004] However, in the production process, most of the inner pipe 04 and the drinking water pipe 01 are plastic parts, and the matching precision between them is very high, so the corresponding production cost is also high

In addition, in the assembly process, the coaxiality between the inner pipe 04, the water spout 03 and the drinking water pipe 01 may be inaccurate. The side of the mouth 03 leaning towards the drinking pipe 01 will be subject to greater friction, so that there will be contact between the inner pipe 04 arranged in the water outlet 03 and the inner wall of the drinking pipe 01, resulting in friction, resulting in the situation that the water film cannot be formed , which in turn causes residual water to flow out, so the structure is less reliable

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