Wedge-caulking type cross fastener and sliding sleeve thereof

Abstract

The invention relates to scaffold fasteners, in particular to a wedge-caulking type cross fastener and a sliding sleeve thereof. The wedge-caulking type cross fastener comprises the sliding sleeve capable of being sleeved on a scaffold base pipe in sliding mode. Two hinged supports for assembling a pressing cover and a hasp in hinged mode respectively are arranged on one side of the sliding sleeve. The two hinged supports are arranged oppositely along the axial direction of the sliding sleeve, the upper portions of the two hinged supports define an accommodating port for containing a scaffold cross pipe, and the lower portions of the two hinged supports define an expansion block installing groove. An opening penetrating through the inside and the outside is arranged at a position between the two hinged supports on a sleeve wall of the sliding sleeve. A pressing sliding block for pressing the scaffold base pipe is arranged in the opening, and an expansion sliding block for being wedged between the scaffold cross pipe and the pressing sliding block is assembled in the expansion block installing groove. During use of the fastener, only one pressing cover is required to be operated, then the expansion sliding block is knocked, operation is convenient and fast, and convenience of operation of the fastener is improved. The safety and operation convenience of the cross fastener are further improved.

Description

technical field [0001] The invention relates to scaffold fasteners, in particular to a wedge-tight cross 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. The steel pipes (base and intersection) are locked together. [0003] Most of the current cross fasteners include a base, a gland hinged on the base, and a connecting bolt hinged on the base. It is the upper gland and the side gland, and their ends away from the hinge shaft are equipped with U-shaped bayonets. The connecting bolts correspond to the glands one by one and ...

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 and increases the labor intensity of the staff. It is especially worth noting that the working environment of the fasteners is mostly harsh. Once the connecting bolts are rusted or stained, the It will further bring inconvenience to the disassembly of the fastener, which in essence also affects the service life of the fastener and increases its maintenance cost

[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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