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Device for fixing concrete formwork through opposite pulling of steel strand
The invention discloses a device for fixing a concrete formwork through opposite pulling of a steel strand, and belongs to the field of building construction. The device is mainly used for fixing the concrete formwork. The high-strength steel strand (7) replaces a steel bar opposite pulling rod, the section area of the high-strength steel strand (7) is much smaller than that of a steel bar under the same strength condition, steel is saved, and damage to the formwork is small. A pair of arc wedges (4) is inserted in an anchor plate (1), the anchor plate (1) is screwed through a butterfly nut (3), then the steel strand (7) can be fixed, when concrete is poured, the formwork can generate very large lateral pressure, the steel strand (7) can elastically contract after being subjected to large pulling force, the arc wedges (4) can be pulled to a screw hole of the anchor plate (1), the arc wedges (4) are blocked by an inclination face of the screw hole of the anchor plate (1) and clamped tighter and tighter, the self-locking phenomenon is generated, the steel strand (7) is clamped tighter and tighter, and the formwork is prevented from deforming. The butterfly nut (3) is reversely loosened, and the components of the device can be totally dismounted.
Device for fixing concrete formwork through opposite pulling of steel strand
The invention discloses a device for fixing a concrete formwork through opposite pulling of a steel strand, and belongs to the field of building construction. The device is mainly used for fixing the concrete formwork. The high-strength steel strand (7) replaces a steel bar opposite pulling rod, the section area of the high-strength steel strand (7) is much smaller than that of a steel bar under the same strength condition, steel is saved, and damage to the formwork is small. A pair of arc wedges (4) is inserted in an anchor plate (1), the anchor plate (1) is screwed through a butterfly nut (3), then the steel strand (7) can be fixed, when concrete is poured, the formwork can generate very large lateral pressure, the steel strand (7) can elastically contract after being subjected to large pulling force, the arc wedges (4) can be pulled to a screw hole of the anchor plate (1), the arc wedges (4) are blocked by an inclination face of the screw hole of the anchor plate (1) and clamped tighter and tighter, the self-locking phenomenon is generated, the steel strand (7) is clamped tighter and tighter, and the formwork is prevented from deforming. The butterfly nut (3) is reversely loosened, and the components of the device can be totally dismounted.
Device for fixing concrete formwork through opposite pulling of steel strand
XIA HUA (author) / YAN SAI (author) / WANG PENGKAI (author) / FANG YINGZHENG (author) / PENG BAOAN (author)
2015-05-20
Patent
Electronic Resource
English
IPC:
E04G
SCAFFOLDING
,
Baugerüste
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