Residual water drainage and water suction non-return mechanism

Abstract

The invention discloses a residual water drainage and water suction non-return mechanism, which comprises a fixed part and a water drainage and air suction assembly, wherein the fixed part comprises an upper part provided with a through hole, a lower part provided with a water outlet hole and a water drainage and air suction hole, and an assembly cavity; the water drainage and air suction assembly comprises a body, a ring part formed by extending outwardly from the upper circumference of the body, and a jacking spring; the outer circumference of the ring part and the inner wall of the assembly cavity are sealed; the ring part is provided with small holes; and the body can be covered and connected to the water drainage and air suction hole, and is provided with a cut-through ventilation hole. When a water source is switched on, running water impacts the body through the through hole, the body slides downwardly till the body hermetically leans on the lower part and is hermetically covered and connected outside the water drainage and air suction hole, running water flows inwards from the small holes on the ring part for generating strong negative pressure, air is sucked inwards alongthe water drainage and air suction hole and the ventilation hole under the action of the negative pressure, and the air is fully mixed with the running water in the assembly cavity, so that bubble water is formed; and when the water source is switched off, the body slides upwards under the action of the jacking spring, and the body moving upwards is prevented from returning, so that residual water in a sprinkler is prevented from increasing, and is quickly drained along the space between the body and the lower part as well as the water drainage and air suction hole.

Description

Technical field [0001] The invention relates to the technical field of sanitary equipment, in particular to a residual water suction and anti-reversal mechanism that can be applied to a shower. Background technique [0002] The Chinese patent with the publication number CN201596582U titled a shower with a function of removing residual water discloses a shower whose working principle is: it adds a one-way valve device, and one end of the one-way valve device communicates with the outside world. The other end is connected to the inner cavity of the shower. The one-way valve channel of the one-way valve device only allows air to enter, and does not allow the internal water to flow out of the one-way valve device. When the shower is closed after use, the residual water in the inner cavity of the shower will produce negative pressure under the equilibrium state. The one-way valve will open under atmospheric pressure to allow air to enter to balance the internal and external pressures....

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an anti-reverse mechanism for exhausting residual water and air suction, which overcomes the shortcomings of the shower head in the background technology that only has a single function of air suction or residual water removal

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