Flap gate device

Abstract

The invention discloses a flap gate device. The flap gate device comprises an inverted trapezoid door body, a bottom sill buried part and a lateral buried part; the door body is provided with hinges,a bottom water stopping strip is arranged at the bottom edge of the door body, and a side water stopping strip is arranged on the side edge of the door body; the bottom sill buried part is arranged atthe bottom of a river channel, and the bottom sill buried part is provided with a hinge seat; the lateral buried part is arranged on the side part of a river bank, and the lateral buried part is provided with a conical surface; the hinges of the door body are hinged to the hinge seat of the bottom sill buried part; and the door body is rotated to realize ascending and descending adjustment of thewater level on the upstream of the door body, in the rotating process of the door body, the bottom water stopping strip of the door body is tightly attached to the surface of the bottom sill buried part, and the side water stopping strip of the door body is tightly attached to the conical surface of the lateral buried part. According to the flap gate device, the cross section of the inverted trapezoid door body is consistent with the cross section of the inverted trapezoid river channel, so that the flow cross section of the river channel is prevented from being reduced, and therefore water of the river channel can smoothly pass through a sluice gate; and the conical surface of the lateral buried part and a continuous arc surface of a bottom sill form a continuous and complete water stopping seat surface, and the form is simple.

Description

technical field [0001] The invention relates to the technical field of river sluice construction, in particular to a flap door device for controlling the water level of a river. Background technique [0002] Conventional flap doors (also known as steel dams and hydraulic dams) have common features, which include that the shape of the door body is usually rectangular, and the door body and the supporting structure are connected by hinge shafts. [0003] In the actual river construction process, in order to adapt to the design of the rectangular gate, the slope of the embankment of the river is usually transformed into a plumb surface by using the connecting section of the wing wall, which will reduce the cross-sectional area of ​​the river and reduce the flow of the river ability. The opening and closing equipment of the flap door is connected with the door body by the hinge shaft, the linkage mechanism has many constraints, and the manufacturing and installation precision r...

AI Technical Summary

Problems solved by technology

The opening and closing equipment of the flap door is connected with the door body by the hinge shaft, the linkage mechanism has many constraints, and the manufacturing and installation precision requirements are high, resulting in an increase in cost, and the complex structure is not beautiful

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