Hydro-automatic hollow flap gate

Abstract

The invention relates to a hydro-automatic hollow flap gate which comprises gate piers, a gate bottom plate, an upper stop dog, an upper stop dog water stop, a hollow gate body, a water / gas drainage hole, O-shaped water stop rings, a bearing, a lower stop dog, a lower stop dog water stop, a gate bottom water stop, water inlet holes, a gate shaft and the like. The gate piers are symmetrically arranged on the two sides of the gate bottom plate. The upper stop dog and the lower stop dog are arranged on the upper portion and the lower portion of the corresponding gate pier on one side of the upstream portion of the hollow gate body respectively. The hollow gate body is fixed between the two gate piers through the gate shaft. The upper portion of the hollow gate body is provided with the water / gas drainage hole and the water inlet holes. According to the hydro-automatic hollow flap gate, the opening of the hollow gate body can be automatically adjusted at any time along with the change of the water inflow from the upstream portion, the gradually opening performance of the hollow gate body is good, more labor is saved in the opening and closing processes, and meanwhile, the hollow gate body is provided with the maximum discharging ability. The hydro-automatic hollow flap gate is free of external force, the hollow gate is automatically opened and closed by totally depending on the water from the upsteeam portion, and application and popularization in practice are facilitated.

Description

[0001] 1. Fields: [0002] The invention relates to a hydraulic automatic control hollow flap gate. 2. Background technology [0003] The hydraulic automatic flap gate is a kind of energy-saving and environment-friendly gate developed by Chinese water conservancy engineering technicians after more than 40 years of hard work and has completely independent intellectual property rights. Since the birth of the first generation of hydraulic self-controlled flap gates in the early 1960s, it has experienced four development stages: horizontal axis double hinge type, multi-branch hinge type, roller linkage type and slider type hydraulic automatic control type. [0004] The main structure of the hydraulic automatic flap gate is a solid gate of reinforced concrete or other materials, which can generally be used to replace flat lift gates, arc gates and rubber dams, and is suitable for river water storage and flood discharge. However, there are still many defects in the hydraulic automa...

AI Technical Summary

Problems solved by technology

However, there are still many defects in the hydraulic automatic flap gate: the horizontal axis type automatic flap gate requires a large enough water level when it is opened, that is, the water pressure to be generated on the door plate on the upper part of the horizontal axis must overcome the dead weight of the door plate and the pressure of the door plate. The water pressure generated at the lower part of the horizontal axis can only be opened, which greatly restricts the opening of the gate, and the opening is inflexible; when closing, it requires a sufficiently low water level upstream of the door panel to close, which will affect the normal water storage; due to the horizontal axis Due to the characteristics of the support structure of the type automatic flap gate, the opening of the gate is limited, and some of them either do not open, or open to the maximum at once, and cannot be automatically adjusted at any time with the change of the upstream water volume; moreover, currently The supporting structure of the hydraulic automatic flap gate is in the water flow, which affects the water passing capacity

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