Finished prestressed steel stranded wire harness convenient for construction

Abstract

The invention relates to a finished prestressed steel stranded wire harness convenient for construction. The finished prestressed steel stranded wire harness comprises a steel stranded wire harness, an extruding sleeve, a front marking board, a rear marking board and a binding wire, wherein the steel stranded wire harness is composed of a plurality of steel stranded wires through combing and twisting in an ordered manner, the extruding sleeve is coaxially buckled at the pulling end of the steel stranded wire harness, the front end and the rear end of the steel stranded wire harness penetrate through the front marking board and the rear marking board, respectively, the binding wire is spirally wound on the outer edge of the steel stranded wire harness between the two marking boards, the extruding sleeve comprises a connecting section and a pulling section, wherein the pulling section is integrated at one end part of the connecting section, the pulling section is of a cone-frustum shaped structure, a threaded hole is formed coaxially in the minor-diameter end of the cone-frustum shaped structure, and a plurality of barb bulge loops are uniformly and integrally arranged on the inner wall of the connecting section in a spacing manner. The steel stranded wire harness can penetrate into a corrugated pipe of a construction hole safely, twisting and deformation among the single steel stranded wires are avoided during penetrating, the pulling section of the extruding sleeve is of a conical structure design and has the strong guiding property, and the construction efficiency is effectively improved.

Description

Technical field [0001] The invention belongs to the field of building construction, and relates to prestressed steel strands, in particular to a finished prestressed steel strand harness that is convenient for construction. Background technique [0002] In the construction of buildings and roads and bridges, multiple pre-stressed steel strands need to be straightened into bundles (also known as finished pre-stressed steel strand bundles) and penetrated into the prepared pre-stressed tunnels, namely the corrugated pipe tunnels. When the finished steel stranded wire harness is passed through the corrugated pipe, it is necessary to withhold an extrusion sleeve at the front end of the finished steel stranded wire harness through a pressure device. [0003] At present, the existing finished pre-stressed steel strands are threaded. When the number of strands is large and the distance is long, the traction force of multiple strands is large during the threading process, and the sleeve is ...

AI Technical Summary

Problems solved by technology

[0005] By comparison, the tendon threading device in the above-mentioned patent publication includes an outer sleeve, a traction head, and four inner clamping pieces, which have the problems of complex structure and cumbersome installation, and the traction head is a solid structure, which not only improves the overall rib threading the weight of the device, and increased the cost, it is quite different from the technical solution of this patent application

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