Self-sealing type floor drain

Abstract

The invention discloses a self-sealing type floor drain which comprises a shell, an outer filtering cover, an internal supporting body, an overturning plate type sealing plate and a rotation shaft. The outer filtering cover is arranged at the inlet end of the shell, the overturning plate type sealing plate is installed on the internal supporting body through the rotation shaft, a first limiting structure and a second limiting structure are arranged at the positions, located on the two sides of the rotation shaft, on the inner wall of the internal supporting body respectively, the first limiting structure is used for limiting one side of the overturning plate type sealing plate to upwards overturn, and the second limiting structure is used for limiting the other side of the overturning plate type sealing plate to downwards overturn, and a spring is connected between the overturning plate type sealing plate and the second limiting structure. The self-sealing type floor drain can prevent foul smells, water overflowing, germs and injurious insects and can be conveniently washed.

Description

technical field [0001] The invention relates to the technical field of water supply and drainage, in particular to a self-sealing floor drain. Background technique [0002] The floor drain is an important interface connecting the drainage system and the indoor floor. The important function of the floor drain is to discharge waste water. However, with the continuous improvement of people's quality of life, the single function of the floor drain can no longer keep up with the living requirements of people in the modern era. At present, in addition to satisfying the function of drainage, the floor drain also needs to be able to separate the living space from the piping system, so that the odor and overflow under the pipes will not run upwards. As an important part of the drainage system in the residence, the performance of the floor drain is Good or bad directly affects the quality of indoor air, which is closely related to people's health. [0003] Patent No.: The floor drain...

AI Technical Summary

Problems solved by technology

[0003] Patent No.: The floor drain introduced in 200710025716.7 mainly uses water to push the rubber plug under the action of gravity to drain water. When the drainage stops, the support rod is automatically lifted under the action of the spring. At this time, it is connected with the support rod. The rubber stopper seals the PVC pipe to prevent water return. However, during long-term use, the elasticity of the spring may gradually decrease with the increase in the number of uses. When the elasticity of the spring decreases to a certain level, the elasticity of the spring The elastic force is smaller than the gravity of the support rod and the rubber stopper, which will make the support rod and the rubber stopper unable to return effectively, thus losing the original function of anti-water return seal, resulting in the phenomenon of sewage overflow, which seriously affects the indoor environmental sanitation

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