Horizontal overturning door

Abstract

The invention discloses a horizontal overturning door, and belongs to the field of dam structure in water conservancy facilities. The horizontal overturning door comprises a door sheet. The bottom ofthe door sheet is connected with a hinge mounted at a dam body by a bottom shaft. The door sheet swings around the bottom shaft. When the door sheet swings upwards, water blocking is achieved, and when the door sheet swings downwards, water drainage is achieved. A supporting bracket is arranged on the downstream face of the door sheet. A supporting frame hinge is arranged at the supporting frame.The dam body is internally provided with a dam body preformed hole. A dam body starting and stopping device is arranged in the dam body preformed hole. The dam body starting and stopping device is connected with the supporting bracket hinge by a supporting rod and controls the door sheet to swing upwards and downwards. The horizontal overturning door has the beneficial effects that the supportingbracket is arranged on the downstream face of the door sheet; the supporting rod is mounted at the supporting bracket and can shorten the length of the supporting rod; and when the length of the supporting rod is shortened, bending strength of the supporting rod is improved, and therefore stroke of an oil cylinder is shortened, and the width of the cross section of the dam is shortened, so that investment of the dam is reduced.

Description

technical field [0001] The invention relates to a dam body structure of a water conservancy facility, in particular to a flap gate. Background technique [0002] Steel gate is an important mechanical equipment in water conservancy and hydropower engineering facilities. It is mainly used in the construction of agricultural irrigation, fishery, ship locks, seawater tidal protection, urban river landscape engineering and small hydropower stations. The usual steel plate gate is a new type of gate that is opened and closed just after the gate is opened and closed by driving the horizontal axis of the bottom driven by hydraulic equipment. It has the characteristics of rapid opening and closing and durability. It mainly includes the bottom horizontal shaft, the steel dam door leaf, the hoist installed in the sluice chamber, etc. The steel dam door leaf is connected with the bottom horizontal shaft to form a gate, and the two ends of the bottom horizontal shaft pass through the wal...

AI Technical Summary

Problems solved by technology

The disadvantages of the curved arm steel dam gate are: 1. The four-bar structure is relatively complicated, and water baffles need to be installed on the steel dam door leaf; Connect the forward-extending crank arm, so there will be gaps on both sides of the steel dam gate, so this kind of crank-arm steel dam gate cannot be installed and used in a row. When it is used alone, once the width of the river is too wide, the water storage The height is large, and it is quite difficult to realize the up and down swing of the huge steel dam gate leaf through one opening and closing cylinder. If multiple opening and closing cylinders are used on a huge steel dam gate, it will inevitably be due to the extension of time. When the oil cylinders are subjected to different degrees of aging due to river water erosion, it is difficult for each opening and closing cylinder to operate on the steel dam gate leaves at the same time. Therefore, the application scenarios of such crank arm steel dam gates are limited, only in places with small flow and narrow river channels; 3. In order to achieve the purpose of covering the opening and closing oil cylinder, claims 5 and 6 stipulate that the curved arm steel dam gate needs to be provided with a cover plate, and it needs to be placed on the left and right sides of the opening and closing oil cylinder. The limit rod is used to ensure that the cover plate is covered above the opening and closing oil cylinder when the steel dam door leaf swings, and the structure is complicated

And from here, it can also be confirmed that this kind of flap gate is only suitable for places with narrow river channels, and external extension rods need to be installed on the walls on both sides of the river channel, indicating that the river channel is very narrow

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