Automatic model board trolley for bridge crash barrier

Abstract

The invention discloses an automatic model board trolley for a bridge crash barrier. The automatic model board trolley comprises a model board, a model board opening and closing mechanism arranged inthe length direction of the model board, and a hoisting device which is used for hoisting the model board opening and closing mechanism; the model board comprises an anti-collision guardrail inner model board body, an outer model board body and a water drop eave model board body. The model board opening and closing mechanism comprises inner and outer opening and closing plates fixed on the outer surfaces of the inner and outer model boards; the tops of the inner opening and closing plate and the outer opening and closing plate are mutually hinged, a hoisting rod is fixed at the hinged part, anopening and closing oil cylinder is connected between the hoisting rod and the inner opening and closing plate, a positioning base is fixed on a cast-in-place box girder, a positioning mechanism forfixing the model board opening and closing mechanism on the cast-in-place box girder is arranged between the positioning base and the inner opening and closing plate. The model board opening and closing automation is achieved through the model board opening and closing mechanism, the labor intensity of operators is reduced, the efficiency is improved, the utilization rate of the trolley is increased through the hoisting device and the walking mechanism, continuous pouring is achieved, the model board is fixed through the positioning mechanism, and model board deviation is prevented.

Description

technical field [0001] The invention relates to the field of road construction equipment, in particular to an automatic formwork trolley for the anti-collision guardrail of an elevated bridge. Background technique [0002] The anti-collision guardrail formwork of the traditional elevated bridge is assembled with 1.5m / 2m section steel formwork, the longitudinal sections are connected by screws, and the formwork is reinforced by drawing rods in the horizontal direction. After the formwork is removed by this method, the formwork joints on the surface of the concrete are obvious, and many holes for drawing rods are left, which may easily cause water seepage in the structure, which greatly affects the appearance quality and durability of the concrete; at the same time, the formwork is installed manually with a crane , There are many accessories for formwork installation and reinforcement, long installation time, labor-intensive and many mechanical shifts, which is not conducive t...

AI Technical Summary

Problems solved by technology

After the formwork is removed by this method, the formwork joints on the surface of the concrete are obvious, and many holes for drawing rods are left, which may easily cause water seepage in the structure, which greatly affects the appearance quality and durability of the concrete; at the same time, the formwork is installed manually with a crane , There are many parts for formwork installation and reinforcement, the installation time is long, labor and mechanical shifts are more, which is not conducive to construction period and cost control; the installation and removal of formwork, pouring concrete, and repair processes for anti-collision guardrails involve side operations, and the safety risks are high.

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