Lapping length controller for laminated slab and beam or shear wall

The utility model discloses an overlap length controller for a laminated slab and a beam or a shear wall, which comprises two limiting assemblies which are symmetrically arranged and an adjusting component which connects the two limiting assemblies into a whole, each limiting assembly comprises an adjusting rod, a base plate and a limiting plate, the base plate is vertically fixed at the outer end of the adjusting rod, and the limiting plate is vertically fixed at the outer end section of the adjusting rod. The distance between the outer side of the base plate and the outer side of the limiting plate is 10 mm, and adjustment of the distance between the two limiting assemblies is achieved through the adjusting component. When the controller is installed, the distance between the two limiting assemblies is adjusted through the adjusting component, so that the base plates of the two limiting assemblies are supported on the two sides of a frame beam or a shear wall formwork respectively. When the laminated slab i