Flexible interlink steel gate and support opening/closing device thereof

Abstract

The invention provides a flexible interlink steel gate and a support opening / closing device thereof, which belongs to the technical field of hydraulic engineering. The flexible interlink steel gate mainly comprises a flat plate steel gate (1), a gate support hinge (2), a cylindrical rubber bag communicated (7) with a water supply / drainage system, a flange (6) at the upper part of the rubber bag, a connecting piece (8) at the lower part of the rubber bag, a bottom water stop (3), a side water stop (18), a door interlink, and the like. The steel gate is made of a steel panel and a light structural steel beam grid system through welding, adjacent gates can be connected through the water stops and the interlink fasteners, and one gate is connected with a bottom plate pre-embedded part (5) through a hinge, and is controlled to be opened or closed through the expansion and the retraction of the rubber bag which is filled with water or discharges water. The invention has the advantages that less central piers are used, water is not blocked, the gate has a light and thin body and can be controlled to be opened or closed by a person, the water filled and discharge amount is small, the cost of construction is low, and the use is convenient, so that the flexible interlink steel gate and the support opening / closing device thereof can be widely applied in mountainous area watercourses and small hydro-electric power plants.

Description

technical field [0001] The invention belongs to the field of hydraulic steel structure or water conservancy and hydropower engineering. Specifically, a flexible chain steel gate and its supporting opening and closing device are provided. Background technique [0002] The gate is an indispensable and important part of the sluice, which is used to adjust the flow and the upstream and downstream water levels, vent the flood and discharge the sediment, etc., so as to obtain benefits such as flood control, irrigation, water diversion for power generation, and sand discharge. There are many forms of gates, which can be divided into flat gates, arc gates, flap gates, etc. according to their structural forms. Among them, because of its simple structure, no need to build tall working bridges, convenient operation and management, and low cost, the flap gate is widely used in general rivers and canals and mountainous rivers with steep slopes and rapid flows. The early flap gates most...

AI Technical Summary

Problems solved by technology

However, this kind of gate still has the following disadvantages and deficiencies: 1) After the gate is overturned, it lies in the water flow, the weir flow is on the gate, and the hole flow is under the gate, which affects the discharge to a certain extent, and the gate vibration phenomenon is easy to occur when the gate is over flow ; 2) Since the fixed hinge as the gate support structure is located on the gate pier, each gate must be separated and fixed by the gate pier, and more gate piers not only increase the project investment, but also narrow the flow section. Affect flood discharge; 3) Inconvenient inspection and maintenance

Another example: rubber dam steel gate (patent application number: 200520087469.X) adopts the form of a rubber dam under the steel gate, and the gate is opened and closed by filling and discharging water from the rubber dam, but since the rubber dam body is close to the joint between the gate and the bottom plate , so the force arm is small, the pressure of the dam body is high, and the rubber dam uses more materials, the amount of water required to fill the dam body is large, and the filling and drainage time is longer, which is not conducive to rapid opening and closing

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