Scaffold steel tube spatial assembling fastener and sliding sleeve thereof

Abstract

The invention relates to the field of scaffold fasteners and particularly relates to a scaffold steel tube spatial assembling fastener and a sliding sleeve thereof. The fastener comprises the sliding sleeve, two sets of pressing assemblies are arranged on the outer sides of the sliding sleeve, each pressing assembly comprises hinge bases oppositely distributed on the sliding sleeve along the axial direction of the sliding sleeve, the hinge axes of the two hinge bases are parallel and spatially and perpendicularly crossed with a central line of the sliding sleeve, a containing opening for containing scaffold steel tubes is enclosed between the upper portions of the two hinge bases, an expansion block installation groove is enclosed between the lower portions of the two hinge bases, an opening is arranged between the two hinge bases on the wall of the sliding sleeve, a pressing slider is assembled in the opening, an expansion slider for being firmly wedged between the scaffold steel tubes and the pressing slider in the containing opening is assembled in the expansion block installation groove, and the hinge bases of the two sets of pressing assemblies are spatially and perpendicularly crossed. The scaffold steel tube spatial assembling fastener has the advantages of being convenient to operate, reliable to fix and not apt to lose and can simultaneously fix three spatially crossed scaffold steel tubes.

Description

technical field [0001] The invention relates to the field of scaffold fasteners, in particular to a scaffold steel pipe space combination fastener and a sliding sleeve thereof. Background technique [0002] With the continuous development of mechanization, automation and rapidity in the construction field, construction fasteners are no longer unfamiliar to us, and various construction fasteners can be seen in almost any construction site, large or small. According to different functions, it can be divided into cross fasteners (also called cross fasteners, connecting fasteners or right-angle fasteners), butt fasteners and rotary fasteners. Although these architectural fasteners have different functions, they have a The common property is that each can only be used for "bonding" or connection between two steel pipes. However, in the actual construction process, it is often necessary to fix three intersecting steel pipes at the same node. At this time, if the above-mentioned c...

AI Technical Summary

Problems solved by technology

It can be seen from its working principle that when the above-mentioned cross fastener is used to fix two steel pipes, at least two glands, namely the upper gland and the side gland, need to be operated separately, so the efficiency is low. In addition, due to the The gland and the base are fixed by connecting bolts during work, which further reduces the work efficiency of the staff and increases the labor intensity of the staff. It is especially worth noting that the working environment of the fasteners is mostly harsh. If the connecting bolts are rusted or stained, it will further cause inconvenience to the disassembly of the fasteners, which in essence also affects the service life of the fasteners and increases their maintenance costs

[0004] 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. 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 misplaced on the one hand. 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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