Sleeve pipe for through-wall screw rod, and through-wall assembly applying sleeve pipe

Abstract

The invention discloses a sleeve pipe for a through-wall screw rod. The sleeve pipe for the through-wall screw rod comprises a pipe body, wherein a through hole penetrating along the axial direction is formed in the pipe body; the radial size of the pipe body can be adjusted; and the pipe body comprises a connecting wall and an elastic thin wall. Therefore, a constructor can operate the sleeve pipe on the outer side of a first template, so that the occurrence of the phenomenon that the sleeve pipe slides off from the through-wall screw rod is reduced or avoided; and the sleeve pipe can be recycled. The invention further discloses a through-wall assembly applying the sleeve pipe for the through-wall screw rod. The through-wall assembly comprises the through-wall screw rod and a guiding piece, wherein the guiding piece can drive the radially contracted pipe body to move; and the through-wall screw rod can enable the sleeve pipe to be outwards expanded radially. The constructor can install the sleeve pipe after install all first templates and all second templates, so that the construction efficiency is high; and when a new sleeve pipe needs to be additionally arranged (for example, the sleeve pipe is missing or a new through-wall screw rod needs to be added), the times for disassembling and installing the second templates can be reduced, so that the installation efficiency of thesleeve pipe is improved.

Description

technical field

[0001] The invention relates to the field of building formwork systems, in particular to a sleeve for a wall-penetrating screw and a wall-piercing assembly using the sleeve. Background technique

[0002] During building construction, building formwork systems are often used. The building formwork system generally includes formwork, wall-through components, back corrugations, fastening nuts, etc. The wall-through components include wall-through screws and sleeves. For the convenience of description, two formworks are taken as examples. The two formworks are respectively recorded as No. A template and a second template, the first template and the second template are arranged oppositely, the first template is provided with a first through hole, the second template is provided with a second through hole, and the back flute is respectively arranged on the first template and the second template On the outside, the casing is arranged between the first formwork and ...

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