Rotary gate automatically controlled by waterpower and provided with horizontal shaft

Abstract

The invention relates to a rotary gate automatically controlled by waterpower and provided with a horizontal shaft. The rotary gate comprises a lock chamber, bearing bodies, a gate shaft, a rotary gate body, suspension mechanisms, a cover plate bridge, a service bridge, a water-stopping unit and hydraulic vibration-damping units. Each bearing body is composed of a bearing groove, a bearing, a bearing gland and a bolt; the gate shaft is fixed in the bearing grooves through the bearings; the upper end of the rotary gate body is installed on the gate shaft through the suspension mechanisms; each hydraulic vibration-damping unit is composed of a piston cylinder, a piston and a piston rod; and each piston cylinder is connected to the service bridge at the side in the downstream direction through a bridge hinge, and each piston rod is connected to the lower end of the rotary gate body through a gate hinge. According to the invention, the state of water flow in the lock chamber is stable, the water storage and discharge capacity can be improved, the automatic opening and closing of the rotary gate can be controlled completely by means of the condition of upland water, the opening degree of the rotary gate can be automatically adjusted at any moment along with the water level change, and the problem of siltation in front of the gate can be solved.

Description

[0001] 1. Field [0002] The invention relates to a horizontal axis hydraulic automatic control rotary gate. 2. Background technology [0003] The hydraulic automatic flap gate is an energy-saving and environment-friendly gate developed by Chinese water conservancy science and technology workers and has completely independent intellectual property rights. Since the birth of the first generation of hydraulic automatic flap gates in the early 1960s, it has experienced four development stages: horizontal axis double hinge type, multi hinge type, roller connecting rod type and slider type hydraulic automatic control type. But there are still some deficiencies: ① the hydraulic characteristics of the hydraulic automatic flap gate are relatively complicated; ② the supporting structure of the gate is the horizontal axis hydraulic automatic flap gate behind the door. Since the horizontal shaft is set in the middle of the gate, the gate above the shaft fold and the gate below the shaft...

AI Technical Summary

Problems solved by technology

But there are still some deficiencies: ①The hydraulic characteristics of the hydraulic automatic flap gate are relatively complicated; ②The supporting structure of the gate is the horizontal axis hydraulic automatic flap gate behind the door.

Since the horizontal shaft is set in the middle of the gate, the gate above the shaft fold and the gate below the shaft are simultaneously subjected to upstream water pressure, and sufficient force is required to turn the gate plate over, resulting in too much force on the gate plate and the gate pier, which is not conducive to the gate’s smooth movement. Stablize

③The entire ram and its supporting structure are in the middle of the water flow, which creates a huge resistance and seriously affects the ability of the water flow to drain

④Hydraulic automatic flap gates will periodically slap back and forth on the pier or dam sill during operation, which is extremely destructive

⑤ When the hydraulic automatic flap gate is opened, it requires a sufficiently high water level before it can be opened; when it is closed, it requires a sufficiently low water level upstream of the door panel to close, which will affect the normal water storage

⑥Due to the characteristics of the support structure of the 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 flow, etc.

Images