Cylindrical hole`s circumference, outer and inner edges protecting device for building, has stirrups connected with other by deformable plastic tabs and fitted in circumference of hole by releasing pressure exerted by electrician on handle

摘要

The device has two stirrups (1) connected with each other by two deformable tabs (2) made of deformable plastic. The stirrups are fitted in circumference of a hole (4) of a gypsum board by releasing an axial pressure exerted by an electrician on a handle (3). The stirrups have the shape of the circumference of the hole, and the handle is gripped to insert and remove the device from the circumference, where the device is of single block.