Scaffold cross-bar used for supporting girder formwork

Abstract

The invention relates to the field of scaffolds for buildings, and particularly to a scaffold cross-bar used for supporting a girder formwork. The scaffold cross-bar comprises a transverse steel pipe which is provided with at least a pair of tightly supported fasteners; each tightly supported fastener comprises a top sleeve sleeved on the transverse steel pipe in a sliding manner; each top sleeve is provided with a tight support part used for tightly supporting a side vertical surface formwork of a girder; in addition, a wedge block which is fixed on the transverse steel pipe in the expansion manner is also inserted in each top sleeve. When the scaffold cross-bar is used, the transverse steel pipe can be arranged below the girder, so that the two corresponding tightly supported fasteners are respectively located at two sides of the girder, and the positions of the top sleeves are adjusted by enabling the top sleeves to slide on the transverse steel pipe; and when the tight support part of each top sleeve tightly presses the side vertical surface formwork of the girder, each top sleeve is fixed in the expansion manner by knocking each wedge block, so that the tight support of the side vertical surface formwork of the girder is realized. After the scaffold cross-bar is adopted, step-to-step fasteners adopted in the prior art can be abandoned completely, and efficiency of building construction can be improved greatly.

Description

technical field [0001] The invention relates to the field of building scaffolding, in particular to a scaffolding cross bar for supporting girder formwork which can be applied to a full hall bracket. Background technique [0002] Scaffolding is very common in today's construction sites. As the two main components of scaffolding, the quality of scaffolding steel pipes and fasteners directly affects the reliability of scaffolding, while the convenience of fasteners directly affects the construction and disassembly of scaffolding. efficiency. In the actual application process, the steel pipes of scaffolding are mainly divided into three types according to their different functions, vertical steel pipes, horizontal steel pipes and diagonal steel pipes. Among them, the vertical steel pipe is used as the pole of the scaffold, which mainly plays the role of supporting and heightening the main body of the scaffold. The horizontal steel pipe is often used to build the corresponding ...

AI Technical Summary

Problems solved by technology

It can be seen from its working principle that the above-mentioned cross fastener needs to operate at least two glands separately when in use, that is, the upper gland and the side gland, so the efficiency is low. In addition, because the gland base of the above-mentioned fastener is in operation It is fixed by connecting bolts, which further reduces the work efficiency of the staff, that is, reduces the efficiency of scaffolding construction and disassembly, and increases the labor intensity of the staff. It is especially worth noting that the working environment of fasteners is mostly relatively harsh. , once the connecting bolts are rusted or stained, it will further cause inconvenience to the disassembly of the fastener, which in essence also affects the service life of the fastener and increases its maintenance cost

[0005] In order to solve the problem of inconvenient disassembly and assembly caused by the connecting bolts of the fasteners, the Chinese patents with the application number 2012202780806 and the application number 932388701 respectively disclose two kinds of scaffold fasteners fixed by wedges, both of which are made by A wedge is set between the outer surface of the fastener gland and the nut of the connecting bolt to tighten and fix the gland. In this case, the connecting bolt actually forms a buckle, which only needs to be turned in during use. The bayonet of the corresponding gland can be tightened with wedges, thereby eliminating the need to tighten and loosen the nuts of the connecting bolts, which brings benefits to the improvement of construction efficiency to a certain extent, but the above fasteners It is still necessary to operate two sets of glands, connecting bolts and corresponding wedges separately, and there is still the problem of inconvenient operation. In addition, because the wedge is located between the gland and the gland of the connecting bolts, it is very easy to be mistaken. There is a certain potential safety hazard, and on the other hand, it also makes the loss of wedges an inevitable problem.

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