Drainage casing pipe capable of preventing odor and backflow

Abstract

The invention relates to a connecting part capable of enabling an upper pre-connection pipeline and a lower connection pipeline to communicate in a same layer drainage process, in particular to a drainage casing pipe capable of preventing odor and backflow. The drainage casing pipe capable of preventing odor and backflow comprises a horizontally arranged chassis and a vertically arranged casing pipe, wherein a through hole is formed in the chassis; the bottom end of the casing pipe is fixedly connected with the top surface of the chassis, and the through hole communicates with an inner cavityof the casing pipe; a drainage water stop joint device capable of deodorizing and preventing backflow is arranged on the top end of the casing pipe in a sleeving mode; and an annular drainage filter screen device capable of filtering impurities is arranged on the drainage water stop joint device in a sleeving mode. The drainage water stop joint device removes accumulated water of a floor through agap formed between an inner wall casing pipe and an outer wall casing pipe, liquid sealing is realized through a water stop ring part and a water proof ring part, and meanwhile, backflow caused by different air pressures is prevented. The drainage casing pipe capable of preventing odor and backflow has rich functions, the structure is simple, the installation is convenient, construction steps andmaterials are saved, and the functions of deodorization and backflow prevention while drainage can be realized.

Description

technical field [0001] The invention relates to a connecting part capable of connecting an upper pre-connected pipe and a lower connected pipe in the drainage process of the same floor, in particular to a drainage casing capable of deodorizing and preventing backflow. Background technique [0002] With the advancement of the policy of building industrialization, more and more construction projects adopt the same-layer drainage technology. It is the general trend to use the same-layer drainage technology for the floors. However, although the same-layer drainage solves the waterproof problem of the ground, it is often easy in the room. Water accumulation, long-term accumulation of water will seep downward along the ground finish layer to the structural slab surface, and eventually the structural layer will be in a water-logging environment for a long time, and there is a hidden danger of downward leakage. [0003] In the prior art, although the water stop section is used to op...

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Problems solved by technology

[0002] With the advancement of the policy of building industrialization, more and more construction projects adopt the same-layer drainage technology. It is the general trend to use the same-layer drainage technology for the floors. However, although the same-layer drainage solves the waterproof problem of the ground, it is often easy in the room. Water accumulation, long-term accumulation of water will seep downward along the ground finish layer to the structural slab surface, and eventually cause the structural layer to be in a water-logging environment for a long time, and there is a hidden danger of downward leakage

[0003] In the prior art, although the water stop section is used to optimize the construction process around the vertical pipeline in the room with water and reduce the hidden danger of leakage around the pipeline, the existing water stop section cannot solve the problem of water accumulation in the same layer, and No steps have been taken to eliminate this hazard

In the prior art, CNOOC adopts side discharge floor drain measures. However, since the side discharge floor drain has a certain height difference from the ground after installation, the accumulated water can only be removed after the height of the side discharge floor drain reaches the height of the side discharge floor drain. Hidden dangers of flooding and odor spread

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