Negative pressure siphoning-assisting device of closed water tank
A technology of sealing water tanks and sealing water tanks, which is applied in water supply devices, flushing equipment with water tanks, flushing toilets, etc. It can solve the problems of slow replacement and unsalable toilets, etc., and achieve the effect of early time, long time and strong replacement function
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[0020] figure 1 The specific implementation manner of the negative pressure suction-assisted device for a closed water tank of the present invention is shown. Sealed water tank 1 is an airtight container not directly communicated with the atmosphere. The water inlet key 14, the water inlet key float 15, the pressure control air pipe 3, and the negative pressure air pipe 4 are all arranged in the sealed water tank 1. Wherein, one end of the negative pressure air pipe is higher than the water inlet key float 15, and the other end communicates with the sewage pipe 8 through the water / air separation chamber 6 and the negative pressure hole 7; The air hole 2 is connected, and the size of the adjustable air hole 2 aperture is used to adjust the size of the negative pressure in the sealed water tank 1. The other end of the pressure control air pipe 3 is immersed under the water storage surface in the water tank, and the depth of immersion in the water depends on the required Negati...
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