Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Return gas prevention device for drainage pipe
The present disclosure provides a return gas prevention device for a drainage pipe, belonging to the technical field of drainage pipes. The device realizes two functions of water seal and a check valve simultaneously, as well as prevents gas channeling in a drainage process.
Return gas prevention device for drainage pipe
The present disclosure provides a return gas prevention device for a drainage pipe, belonging to the technical field of drainage pipes. The device realizes two functions of water seal and a check valve simultaneously, as well as prevents gas channeling in a drainage process.
Return gas prevention device for drainage pipe
ZHANG YULIAN (Autor:in) / ZHANG CHEN (Autor:in) / ZHANG HAI (Autor:in) / WANG QIN (Autor:in)
10.05.2022
Patent
Elektronische Ressource
Englisch
Building drainage facility water return prevention device and assembling method
| Europäisches Patentamt | 2020
Flooding prevention pipe and drainage flooding prevention structure
| Europäisches Patentamt | 2020