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A flap valve comprises a base and an end cover. The base is connected with the end cover through a hinge, a traction rope, which is a steel wire rope, is arranged on the end cover, and the traction rope is arranged in the middle of the end cover. According to the flap valve, the traction rope is arranged on the base, the flap valve can be opened and closed through the traction rope when the flap valve cannot be opened and closed automatically by relying on the water pressure, and accordingly, flood in rivers can be discharged smoothly, the river safety is protected, flood can be discharged smoothly, the pipe safety can be protected, effects on the urban environment due to overflowing of sewage onto the ground can be prevented, the living environment of people is beautified, the flap valve can be operated by operators conveniently, too much human resource investment is reduced, and the cost is saved.
A flap valve comprises a base and an end cover. The base is connected with the end cover through a hinge, a traction rope, which is a steel wire rope, is arranged on the end cover, and the traction rope is arranged in the middle of the end cover. According to the flap valve, the traction rope is arranged on the base, the flap valve can be opened and closed through the traction rope when the flap valve cannot be opened and closed automatically by relying on the water pressure, and accordingly, flood in rivers can be discharged smoothly, the river safety is protected, flood can be discharged smoothly, the pipe safety can be protected, effects on the urban environment due to overflowing of sewage onto the ground can be prevented, the living environment of people is beautified, the flap valve can be operated by operators conveniently, too much human resource investment is reduced, and the cost is saved.
Flap valve
HAN YONGKUN (author)
2015-04-15
Patent
Electronic Resource
English
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
Engineering Index Backfile | 1949