3results about How to "Assembly safety" patented technology

This application provides a method for installing an extra-large drainage system, comprising the following steps: S1. Arranging a sliding device along the installation axis inside the extra-large concrete pipe, and setting a lifting device on the sliding device; S2. Sliding x extra-large drainage systems sequentially to their corresponding positions on the sliding device using the lifting device, controlling the distance between two adjacent extra-large drainage systems to be a, where a is less than b; S3. Continuing to assemble the remaining (n-x) extra-large drainage systems, but controlling the distance between two adjacent extra-large drainage systems to be b; S4. Sliding the second to nth extra-large drainage systems together until the distance between the second and first extra-large drainage systems is b; repeating the above sliding process until the distance between the xth to (x-1th)th extra-large drainage systems is b, thus completing the installation of the extra-large drainage system. This application solves the problem of interference between lifting machinery and pipe cavities due to limited space, and realizes the installation of extra-large drainage systems in confined spaces.

The application discloses a fan shaft simulation device and a measuring method of a two-stage fan impeller, and belongs to the fan impeller measuring field. The application provides a fan shaft simulation device and a measuring method of a two-stage fan impeller, adopts an asymmetric supporting structure to realize the centering of a two-stage fan wheel disc, completes the positioning of an integral ring structure casing on the same side, and simultaneously satisfies the requirements of fan unit body measurement in a horizontal state and bearing clearance elimination. The simulation device with the fan shaft can be connected to a turnover frame to realize the overall turnover function, satisfies the process of vertical assembly-horizontal measurement, and is safer and more reasonable for the assembly of the rotor and the casing; the assembly can eliminate the bearing axial clearance on the simulation device, and the top tool does not need to be newly manufactured and arranged; the simulation device with the fan shaft becomes an integrated device after the first assembly and detection, is easy to maintain, can be repeatedly used for component assembly, and indirectly saves the assembly period.

The utility model provides an integrated assembly type suspended ceiling module, relates to the technical field of assembly type suspended ceilings, including hanger plate, cover plate and reinforcing strip, the left side and right side of the lower end face of hanger plate are both fixed with side frame, and the upper part of the inner side wall of side frame is provided with the inlay, the cover plate is embedded in the inlay, and the cover plate and hanger plate are detachably connected, and the reinforcing strip is fixed on the hanger plate. Multiple sets of reinforcing strips are fixed to the upper end face of the hanging plate, two sets of transverse frame plates are fixed to the left portion and the right portion of each reinforcing strip, vertical frame plates are installed on the transverse frame plates, second threaded rods are fixed to the middles of the vertical frame plates, hanging holes are formed in the side frames, side hanging rods are arranged in the hanging holes in a sleeved mode, and first threaded rods are arranged on the upper portions of the side hanging rods. And a fastening nut is twisted at the lower part of the first threaded rod through threads. The utility model has the advantages of quick and stable on-site assembly, uniform load-bearing stress distribution and stable and reliable installation, and is safer and more durable by adopting a dustproof, moistureproof, sound-proof and heat-insulating cover plate structure.