Formwork device is sealed to variable mobilizable electric power trench

The utility model relates to an electric power trench construction field specifically is a formwork device is sealed to variable mobilizable electric power trench, characterized by: including the plank sheathing, the flitch, change corner connector, steel pipe and angle clip keep off, change corner connector for can change corner connector, including corner stopper and two bar iron slab bands, a two bar iron slab bands bar iron slab band sets up on the concrete cushion, a bar iron slab band sets up at the plank sheathing lower extreme, the plank sheathing passes through the flitch, it connectsto change corner connector and steel pipe, it seals peripheral template to form semi -enclosed electric power trench, the plank sheathing outside is equipped with the flitch, the setting is connectedwith the steel pipe between the plank sheathing of concrete cushion both sides, the lower part of peripheral template is sealed to the electric power trench, it keeps off to be equipped with the angle clip on the concrete cus