a portal scaffolding

Abstract

The invention discloses a portal scaffold, which comprises a frame, a platform mechanism, universal wheels and a fixing mechanism; Angle α, 55°≤α≤75°, the third pole is set parallel to the ground, the adjacent first pole and the second pole are fixedly connected by the third pole to form the door frame A, and the two adjacent first poles pass through the third The bars are fixedly connected to form a door frame B, and two adjacent second bars are fixedly connected by a third bar to form a door frame C. Any two door frames A are parallel to each other, and the door frame B and door frame C form an angle β, 0°≤ β≤55°; in the platform mechanism, the first flat plate, the second flat plate and the third flat plate are respectively hinged to the bracket; in the fixed mechanism, the sliding rod moves up or down to the uppermost or lowermost part The wheels or support bases are in contact with the ground. The invention has a simple structure and is a platform structure, so that the scaffolding is not easy to fall over, and the universal wheel is not easy to roll when in use.

Description

technical field [0001] The invention relates to the technical field of scaffolding, in particular to a portal scaffolding. Background technique [0002] Scaffolding is used in the construction field, and it is convenient for construction personnel to operate and use during decoration and other processes. Universal wheels are installed at the bottom of the portal scaffolding structure, which is convenient for operators to use. In the prior art, it is generally used to directly block the universal wheel and increase the friction of the universal wheel so that the universal wheel is not easy to roll, but this design is often unsafe. When the buckle fails or the force to push the universal wheel is large enough Sometimes, the scaffold still rolls, and in the prior art, the construction personnel need to stretch out the upper body of the platform mechanism to obtain objects, which increases the risk of personnel falling from a height. Moreover, portal scaffolding often adopts a...

AI Technical Summary

Problems solved by technology

In the prior art, it is generally used to directly block the universal wheel and increase the friction of the universal wheel so that the universal wheel is not easy to roll, but this design is often unsafe. When the buckle fails or the force to push the universal wheel is large enough Sometimes, the scaffolding will still roll, and in the prior art, the construction workers need to extend their upper body out of the range of the platform mechanism to get objects, which increases the risk of people falling from a high place

Moreover, portal scaffolding often adopts a cubic structure, which can easily cause the scaffolding to fall over and cause personal injury.

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