Arc sluice gate It is a part of radial gate with cylinder retaining surface. The supporting hinge of the support arm is located at the center of the circle, and the gate rotates around the supporting hinge when opening and closing. The radial gate is composed of rotating gate body, embedded components and hoisting equipment. The radial gate has no gate slot, small opening and closing force and good hydraulic condition. It is widely used as a service gate in various types of waterways.
It includes side water stop seat, bottom sill water stop seat, top water stop device and bearing components of support hinge seat, which are generally embedded in the surface of relevant parts of concrete, and play a role of water sealing and bearing. General rubber is used for sealing device of radial gate of medium and small size and with small total water pressure, and special sealing rubber is used for down the hole high pressure radial gate. The bearing members of the hinged support of the open top radial gate are generally embedded in the cantilever bracket of the pier; some of the bearing beams of the hinged seat of the submerged radial gate are directly embedded in the mass concrete, and some of the bearing beams are inserted into the side wall for anchoring.
The radial gate has a small opening and closing force, and the moving track of the lifting point is an arc. The radial gate with exposed roof or large width height ratio usually uses two lifting points, and the hoisting equipment adopts the layout of one door and one machine. According to the structure of the building, the opening and closing form of radial gate is often adopted: the lifting point is set in front of the gate leaf panel, and the steel wire rope winch or plate chain hoist is used; the lifting point is set on the beam system or support arm behind the gate leaf panel, and the steel wire rope winch and hydraulic hoist can be used. Generally, the cylinder body of radial gate hydraulic hoist is made of swing type, so as to achieve compact layout and reduce the weight of equipment.