Bottom frame for concrete frame

Abstract

The present invention provides a bottom frame for a concrete frame, which is provided with a quadrilateral frame for stairwell engineering, or is disposed at the bottom of the quadrilateral frame or the wall frame for better arranging the quadrilateral frame or a wall frame horizontally when a wall frame is placed on a concrete pavement. The invention particularly relates to a bottom frame for a concrete frame, which is provided with a bottom frame; an expansion anchor bolts is detachably arranged on the bottom frame and won't be departed from the bottom frame. In the process of assembling ordeparting the bottom frame, the loss of the expansion anchor bolt or the accident caused by the slippage of the expansion anchor bolt is prevented. The arrangement of the bottom frame is convenient for setting work, thereby improving work efficiency.

Description

technical field [0001] The invention relates to a bottom support frame for a concrete frame, which is arranged at the bottom of the quadrilateral frame or the wall frame when the quadrilateral frame is used for the stairwell project, or the wall frame is arranged on the concrete pavement, so as to facilitate better A quadrilateral frame or a wall frame is arranged horizontally on the ground, and more specifically relates to a bottom bracket frame for a concrete frame. The support frame slips off, thus, in the process of assembling or separating the bottom support frame, it is possible to prevent the expansion anchor bolts from slipping and being lost or accidents caused by the slipped expansion anchor bolts, and it is convenient to install the bottom support frame. Jobs are set, and thus, job efficiency can be improved. Background technique [0002] The existing concrete frame uses the bottom bracket frame to arrange the quadrilateral frame or the wall frame on the bottom b...

AI Technical Summary

Problems solved by technology

[0002] The existing concrete frame uses the bottom bracket frame to arrange the quadrilateral frame or the wall frame on the bottom bracket frame, and because of pouring the concrete, after pouring the concrete, first separate the bottom bracket frame and assemble it on another position to be poured. On the quadrilateral frame or wall frame, in the process of separating the bottom bracket frame, the expansion anchor bolts are detached from the internal threaded holes of the fixing bolts, and are separated from the bottom bracket frame to slip off. In some cases, the expansion anchor bolt slips off when it is separated from the center hole of the fastening nut combined with the fixing bolt, and thus, it is easy to fall to the bottom, resulting in the problem of loss. When the expansion anchor bolt falls, it occurs Operators or pedestrians working on the lower side were injured due to being hit by the expansion anchor bolts. When the expansion anchor bolts separated from the bottom support frame fell to the ground or were lost, it is necessary to find or take the expansion anchor bolts again. And the construction, thus, caused a problem that it took a lot of time to delay the work and cause the work efficiency to be low

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