Multi-layer water seal device and method

Abstract

The invention discloses a multi-layer water seal device. The multi-layer water seal device comprises two or more water seals which are sequentially arranged from top to bottom, wherein the upper water seal is of a floating bell jar type structure comprising a water seal box and a floating jar bell arranged in the water seal box; the lower water seal is arranged in a drain pipe below the floating bell jar; one side of the water seal box extends or is connected with a communication cavity chamber deviated from the drain pipe, the floating bell jar also correspondingly extends or is connected with the floating component, and the floating component is deviated from the drain pipe and floats in the communication cavity room. When sewage in the water seal box rapidly flows away through the drain pipe, floating force on the floating component from the communication cavity chamber is greater than that on the floating bell jar from the water seal box, and the larger the distance between the water seal box and the drain pipe is, the larger floating force larger. Thus, the floating bell jar is inclined towards the outer side of the water seal box because of unbalance of the floating force, it is avoided that the floating bell jar is adsorbed to the bottom wall of the water seal box under the action of the negative pressure of the drain pipe, and work stability of the water seal device is improved. The invention further discloses a multi-layer water seal method.

Description

technical field [0001] The invention relates to the technical field of building drainage, in particular to a multilayer water sealing device and a multilayer water sealing method. Background technique [0002] The pool of the existing family kitchen and its sewer pipe mouth, the urinal of the bathroom, the floor drain and its sewer pipe mouth are slightly blocked, and the sewage just overflows outside the pool. Sometimes in order to prevent clogging, the floating bell jar of the floor drain is often removed. Like this, although the problem of partial debris clogging can be solved, the foul smell in the sewer pipes is very large, polluting the environment and affecting people's health. [0003] Please refer to figure 1 , figure 1 It is a structural schematic diagram of an anti-odor and anti-overflow return valve in the prior art. The following briefly introduces the working principle and technical defects of the return valve. [0004] Such as figure 1 As shown, the return...

AI Technical Summary

Problems solved by technology

Moreover, the adsorption force is relatively large, and when the sewage from the upper pool is discharged to the lower pool again, a greater buoyancy force is needed to pull up the linkage bell 8', thus causing inconvenience to drainage.

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