Flap valve

Abstract

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.

Description

technical field [0001] The invention relates to water conservancy equipment, in particular to a flap door. Background technique [0002] Slap doors have been widely used in water conservancy construction, most of which are used at the outlet of pipelines to adjust the water flow of the river and control the water level of the upstream and downstream water channels. It can play a good role in flood control when it is rainy in summer , to protect the normal production and life of the downstream people, but at present, many flap doors are opened and closed by water pressure. Such an opening and closing method is likely to cause a delay in opening and closing. Floods cannot be removed from the river in time, posing a threat to the upstream river, failing to protect the safety of the river, and bringing safety hazards to production and life. The weight of the door is generally relatively heavy, and it is difficult to move it by manpower. However, when there is a lot of sewage in...

AI Technical Summary

Problems solved by technology

[0002] Slap doors have been widely used in water conservancy construction, most of which are used at the outlet of pipelines to adjust the water flow of the river and control the water level of the upstream and downstream water channels. It can play a good role in flood control when it is rainy in summer , to protect the normal production and life of the downstream people, but at present, many flap doors are opened and closed by water pressure. Such an opening and closing method is likely to cause a delay in opening and closing. Floods cannot be removed from the river in time, posing a threat to the upstream river, failing to protect the safety of the river, and bringing safety hazards to production and life. The weight of the door is generally relatively heavy, and it is difficult to move it by manpower. However, when there is a lot of sewage in the pipe network, the flap door cannot be opened and closed well, which will cause a lot of pressure on the pipe network, and a lot of sewage overflows the ground, causing the ground to become a cross flow of sewage, which affects the urban environment. Image, long-term sewage in the pipeline can not be removed, and it will also erode the pipeline. Long-term erosion of the pipeline will often lead to pipeline damage, and serious pipeline collapse will affect the city’s road surface and bring pressure to the city’s municipal administration. Huge investment to fix pipes puts financial strain on city

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