3results about How to "Act as a constraint" patented technology

This invention discloses a top-to-bottom binding reinforcement structure and method for the inner side of a masonry window pier wall, relating to the field of window pier wall reinforcement technology. The structure includes: a window pier wall body, an annular placement station, an annular carbon fiber cloth, an adhesive layer, a first filler, and a second filler. The annular carbon fiber cloth is sequentially fixed in the placement station to form a closed constraint on the inner side of the window pier wall body. The adhesive layer is placed between the annular carbon fiber cloth and the annular placement station to bond and fix the annular carbon fiber cloth to the annular placement station. The first filler is used to fill the first replacement groove; the second filler is used to fill the second replacement groove. This structure can constrain the masonry wall, enhance the vertical and horizontal bearing capacity of the window pier wall structure, effectively improve the integrity and anti-falling / collapse ability of the window pier wall structure, and effectively improve the overall stability and safety of the window pier wall structure.

This utility model relates to a simple lifting device for prefabricated curtain wall construction, comprising a frame, a drive motor bolted to the top of the frame, the output shaft of the drive motor being fixedly connected to a lead screw, the lead screw being rotatably connected to the frame, the side of the lead screw being threadedly connected to a threaded sleeve, the threaded sleeve being fixedly connected to a drive plate, an adjustment mechanism being fixedly connected to the drive plate, and a drive mechanism being provided on the side wall of the frame. This simple lifting device for prefabricated curtain wall construction unfolds the telescopic membrane by pulling the open frame upwards, which can wrap around the upper area of ​​the curtain wall, providing additional protection and acting as a buffer and constraint when multiple curtain wall panels are close together, enhancing transportation stability. The adjustment mechanism simultaneously clamps, lifts, and positions multiple curtain wall units. A servo motor drives the drive shaft, and the linkage of the slide rail and insertion rod allows for synchronous control of the spacing of multiple sets of receiving frames, enabling the processing of multiple curtain walls at once.

The application discloses a gantry crane and a hoisting installation method, the crane comprises a gantry and a winch at the upper end of the gantry, a steel wire rope is arranged on the winch, a hook is connected to the free end of the steel wire rope, limiting parts are arranged on both sides of the hook, a guide part is arranged on the gantry, and the limiting parts are matched to pass through the guide part; after the hook drives the limiting parts to move and pass through the guide part, the limiting parts below the guide part are in a straight rod shape, the limiting parts above the guide part are arranged in multiple sections and can be wound; the method comprises equipment inspection, hook positioning, cargo connection, hoisting transportation and descending and finishing, the limiting parts can be locked and unlocked, the guide part and the driving mechanism are matched, the cargo and the steel wire rope are effectively guided and constrained in each hoisting stage, the swinging of the cargo caused by inertia and movement during starting and stopping is inhibited, the safety hidden danger is reduced, and the operation efficiency is improved.