The invention belongs to the technical field of demoulding equipment in
building construction, and relates to a manual demoulding device aiming at a sample with
diameter of 39.1mm and height of 80mm. The main body of the manual demoulding device structurally comprises a support
fixed frame, a fixed plate, an upper roof plate, an actmix
threaded rod, a pressuring plate, a fixed bolt, a mould placing room, a detachable mould receiving box and a rubber
cushion. A test mould is placed into the mould placing room, a
glass sheet with
diameter of 39.1mm is paved on the surface of the sample, the upper roof plate downwards moves to enable the circle hole center of the upper roof plate to be aligned and in tight contact with the center of the mould, then the fixed bolt is screwed down, the upper end of the support
fixed frame is pressed by one hand, and the actmix
threaded rod is rotated by the other hand to enable the pressuring plate to downwards move, and the sample is gradually separated from the mould and can fall into the detachable mould receiving box along the downward movement of the pressuring plate. The manual demoulding device provided by the invention is simple in preparation technology, low in cost, small in shape, convenient to place, convenient to use and high in reliability, substantive features are outstanding, and improvement is prominent.