A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Unpowered pipe inner type anti-backflow device
The invention relates to an unpowered pipe inner type anti-backflow device. The unpowered pipe inner type anti-backflow device comprises a tubular shell and eccentric conical membrane flaps, the tubular shell is hermetically installed in a pipeline, the eccentric conical membrane flaps are installed in the tubular shell, the bottom faces of the eccentric conical membrane flaps face an outlet of the pipeline, and vertexes of the eccentric conical membrane flaps face an inlet of the pipeline; and the projection of the central longitudinal sections and the bottom surfaces of the eccentric conical membrane flaps forms a right triangle shape, and one side corresponding to the right-angle side is fixed on the upper inner wall of the tubular shell. Compared with the prior art, an eccentric conical rubber film is adopted, one-way conduction can be achieved, meanwhile, a conducted water head is reduced, and therefore the problem that the water head is prone to being clamped by gravel is solved.
本发明涉及一种无动力管内型防倒灌装置，包括管状壳体和偏心锥型膜瓣，管状壳体密封安装于管道内，偏心锥型膜瓣安装于管状壳体内，且底面朝向管道的出口设置，顶点朝向管道的入口设置，偏心锥型膜瓣的中心纵截面与底面的投影组成直角三角形状，且对应于直角边的一侧固定于管状壳体的上内壁。与现有技术相比，本发明采用偏心锥形橡胶膜，可以在实现单向导通的同时，减小导通的水头，从而避免容易被砂石卡住的问题。
Unpowered pipe inner type anti-backflow device
The invention relates to an unpowered pipe inner type anti-backflow device. The unpowered pipe inner type anti-backflow device comprises a tubular shell and eccentric conical membrane flaps, the tubular shell is hermetically installed in a pipeline, the eccentric conical membrane flaps are installed in the tubular shell, the bottom faces of the eccentric conical membrane flaps face an outlet of the pipeline, and vertexes of the eccentric conical membrane flaps face an inlet of the pipeline; and the projection of the central longitudinal sections and the bottom surfaces of the eccentric conical membrane flaps forms a right triangle shape, and one side corresponding to the right-angle side is fixed on the upper inner wall of the tubular shell. Compared with the prior art, an eccentric conical rubber film is adopted, one-way conduction can be achieved, meanwhile, a conducted water head is reduced, and therefore the problem that the water head is prone to being clamped by gravel is solved.
本发明涉及一种无动力管内型防倒灌装置，包括管状壳体和偏心锥型膜瓣，管状壳体密封安装于管道内，偏心锥型膜瓣安装于管状壳体内，且底面朝向管道的出口设置，顶点朝向管道的入口设置，偏心锥型膜瓣的中心纵截面与底面的投影组成直角三角形状，且对应于直角边的一侧固定于管状壳体的上内壁。与现有技术相比，本发明采用偏心锥形橡胶膜，可以在实现单向导通的同时，减小导通的水头，从而避免容易被砂石卡住的问题。
Unpowered pipe inner type anti-backflow device
一种无动力管内型防倒灌装置
HUANG YANG (author) / ZHAO JINBAO (author)
2021-12-03
Patent
Electronic Resource
Chinese
IPC:
E03F
SEWERS
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Abwasserkanäle