| 摘要 |
<p>The hoist is used for lifting and supplying different constructional components and materials across window holes, across balconies and on flat roofing and formworks for slabs, required in civil engineering works on buildings. It can transport building components and materials vertically and horizontally in a stable manner outside and inside across holes in the building and over it. In addition quick assembly and disassembly works on the structure outside and inside the floors of the building can be performed. The hoist includes a frame with guiding rails (1, 2), resting on adjustable supporting stands (6, 9). On the rails (1, 2) a horizontally moving trolley (12) is fitted, connected by a rope contour with a driving mechanism (18), as well as with a vertical lifting device and means for fixation and braking. The lifting device is in the form of a platform for loads (13) connected to a lifting mechanism (22) by a first lifting rope (20) of first independent rope contour, and second lifting rope (21) of a second independent rope contour. The rope contour between the horizontally moving trolley (12) and mechanism (18) is executed as a closed rope contour, from which one of the branches of the horizontal rope (15) is fixed to the frame of the trolley (12) by means of a pressing device (16) mounted to it. 3 claims, 8 figures</p> |
