Detachable pull bolts

Abstract

The invention discloses an opposite-pulling bolt capable of shedding, particularly relates to the opposite-pulling bolt capable of shedding, and relates to the field of building construction. The opposite-pulling bolt capable of shedding comprises a bolt and a clamping piece arranged at one end of the bolt, and further comprises a casing pipe, an outer sleeve shell, and a reverse skeleton structure, the reverse skeleton structure is arranged on the end, away from the clamping piece, of the bolt, the outer sleeve shell is arranged on the bolt in a sleeving mode, and the bolt and the outer sleeve shell penetrate out of the casing pipe; the casing pipe comprises an upper half part, a lower half part, a wedge and a rotational connecting piece; the reverse skeleton structure comprises a connecting rod and a rotational clip. In the opposite-pulling bolt capable of shedding, after concrete is subjected to moulding by casting, merely one side which the clamping piece is arranged needs to be operated so that the opposite-pulling bolt can be quickly and conveniently taken out of the molded concrete for use of concrete casting next time, the opposite-pulling bolt is convenient to assemble and disassemble, thus the construction safety is guaranteed, the follow-up construction is benefited, and the material and labor cost are lowered.

Description

technical field [0001] The invention relates to a detachable half-stay bolt, in particular to a detachable half-stay bolt relating to the field of building construction. Background technique [0002] In concrete pouring construction, in order to make the concrete form the shape required by the project, wooden formwork is often used to limit the shape of concrete pouring, and pull bolts are widely used to fix the wooden formwork. In the prior art, the tension bolts of the wooden formwork are mostly composed of pull rods, fasteners and nuts. During the operation, after placing and positioning the pull bolts, fix them at both ends of the structure with clamps and nuts respectively, and operation surfaces at both ends are required. However, in some special locations, such as construction joints, flue, ventilation shafts, and external walls that are difficult to reach, because the working surface cannot meet the scale requirements of manual operations, the pull bolts and formwor...

AI Technical Summary

Problems solved by technology

However, in some special locations, such as construction joints, flue, ventilation shafts, and external walls that are difficult to reach, because the working surface cannot meet the scale requirements of manual operations, the pull bolts and formwork cannot be removed and disassembled after concrete pouring. The construction process has adverse effects, and it also causes waste of materials

Therefore, in the prior art, there is no one-sided operation that can be easily and quickly taken out from the poured concrete, disassembled and recyclable.

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