Fastener for steel pipe scaffold butting

Abstract

The invention relates to a steel-tube scaffold connecting piece in the construction industry, in particular to a joint locking piece. The structure is characterized in that a half and half open and close conical bolt body is regarded as the main body, the upper and the lower end of which respectively fasten the end of two short vertical posts, the middle part is radially provided with a channel and a port going through a big transverse rod, and both sides of the main body with the end in the horizontal right angle direction are provided with a jacket, a vertical post, an arch surface support plate, a lock hook and a semi-round press plate for insertion and hanging of a small transverse rod during installation. The conic bolt is screwed up and locks tight the vertical post, the big transverse rod; the small transverse rod is inserted and hanged to the vertical post of the jacket, and is chocked by the semi-round press plate. When used as a heavy frame, the fastness and vertical bearing capability of the short vertical post structure totally equal to those of a bowl-type steel-tube scaffold, so as to save the welding cost and is convenient in collective storage and transportation. As a novel steel-tube scaffold, the invention is convenient and fast in operation, safe and reliable, labor intensity saving and application in large scope.

Description

Technical field [0001] The invention relates to a connecting piece of steel pipe scaffolding in the construction industry, in particular to a butt joint locking piece which combines a plug-in type and a nut fastening type into one. Background technique [0002] The steel pipe scaffolding used in the construction industry is divided from the connection method of the vertical rod and the horizontal rod: including the fastener type steel pipe scaffolding mainly based on the lap joint layout, the bowl buckle type, the insert wedge groove type, the U Semi-combined steel pipe scaffolding such as hanging type and casing plug type. The buckle-type steel pipe scaffold with a history of one hundred years, the structural principle of its connectors is to imitate the original form of wooden pole scaffolding tied with iron wires. Each fastener is a hinge pair plus a buckle structure. The structure is cumbersome; the vertical rod and the horizontal rod are overlapped at the side, the axe...

AI Technical Summary

Problems solved by technology

The buckle-type steel pipe scaffold with a history of one hundred years, the structural principle of its connectors is to imitate the original form of wooden pole scaffolding tied with iron wires. Each fastener is a hinge pair plus a buckle structure. The structure is cumbersome; the vertical rod and the horizontal rod are overlapped at the side, the axes do not intersect, the load eccentricity is large, the mechanical performance is poor, and it is difficult to withstand sudden loads; the verticality control of the vertical rod is difficult, and the vertical bearing capacity index is low; the operation It takes a lot of time to tighten the screws, and it takes a lot of effort to connect the vertical poles, which is labor-intensive and low in efficiency; the improvement of its performance can only be optimized in terms of materials and manufacturing methods, so the cost is doubled

In the steel pipe scaffolding with butt joint layout, the large crossbar adopts standardized short rods, which is conducive to ensuring the verticality of the vertical poles, saving labor and improving work efficiency; On the pole, it is permanently fixed in the vertical direction, and the connecting parts do not slip, which is obviously an advantage; but sometimes several accessories are idle on the pole, which is obviously a waste of cost; Very inconvenient, thus limiting the scope of application

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