4results about How to "Save construction site" patented technology

This utility model belongs to the field of steel strand stacking technology and discloses a steel strand unloading and stacking grid frame, including two grid frames connected by multiple threaded connecting rods. Each grid frame includes an outer frame, and the interior of the outer frame has a plurality of grid holes formed by multiple horizontally and vertically staggered circular rods. Using this utility model for steel strand stacking can save the planar area for steel strand stacking, and the steel strands will not be scratched when passing through the grid holes formed by this utility model.

This invention discloses the structure and construction method of an arch bridge viewing platform. The specific structure includes a main beam, with prefabricated platform sections symmetrically arranged on both sides of the main beam along the bridge's centerline. The outer walls of the prefabricated platform sections are connected to cantilevered splicing sections. The ends of the two cantilevered splicing sections furthest from the bridge's centerline coincide with the ends of the main beam. End caps are provided at the ends of the main beam. The inner walls of the prefabricated platform sections are connected to main arch ribs. This invention's arch bridge viewing platform structure solves the problem of poor overall structural integrity in existing arch bridge viewing platforms. The construction method of this invention is simple to operate and allows for rapid construction.

The utility model provides a large-size grid line structure which comprises a steel cross beam and an aluminum box perpendicularly fixed to the outer side of the steel cross beam. A honeycomb aluminum plate is fixedly arranged in the aluminum box in the transverse direction, a first stand column and a second stand column are fixedly arranged at the two ends of the honeycomb aluminum plate respectively, and the first stand column and the second stand column are fixedly connected with the front side and the rear side in the aluminum box respectively. Connecting angle steel is arranged on the side, facing the steel beam, of the aluminum box, the end, close to the aluminum box, of the connecting angle steel is integrally connected with the first stand column, and the other end of the connecting angle steel is welded and fixed to the steel beam. The aluminum profile is converted into the aluminum box structure internally provided with the honeycomb aluminum plate to form the grid structure, the stress structure is converted into integral surface stress from linear stress, the rigidity stress requirement is met, meanwhile, the cost is reduced, the flatness of the outer vertical face is high, the material is light, and machining is convenient.

The invention relates to the technical field of welding devices, and discloses a building construction reinforcement cage welding device which comprises a supporting rotating assembly, the supporting rotating assembly comprises a main shaft and four supporting plates, and the four supporting plates are used for supporting the inner wall of a reinforcement cage from the interior of the reinforcement cage to the outer side of the reinforcement cage; the main shaft is used for driving the reinforcement cage to rotate through the four supporting plates; the welding assembly can be used for welding the rotating reinforcement cage in the moving process; and the auxiliary feeding assembly comprises a plurality of pulleys. Through cooperation of a supporting rotating assembly and an adjusting part, a second hydraulic cylinder can be started to drive a sliding rod to move leftwards, a second connecting rod and a first connecting rod are used for driving four supporting plates to move in the direction away from a main shaft, reinforcement cages of various specifications are supported and fixed, and the reinforcement cages of various specifications are adapted; the cost for customizing a plurality of welding tools is saved; and the construction site is saved.