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Finished steel strand harness propulsion device

A technology of propulsion device and finished steel, which is used in the erection/assembly of bridges, the processing of building materials, bridges, etc., can solve the problems of the traction head not fixing the traction wire rope, inconvenient to pull the traction wire rope, and the device does not have uniform specifications, so as to achieve the tightness of the hoop. Good effect, high construction efficiency, simple processing effect

Inactive Publication Date: 2013-10-16
TIANJIN SHINKUNTAI ADVANCED PRESTRESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned No. 200820035829.5 patent has the following defects: the prestressed steel strand fixing plate is too thin, and it is easy to loosen when it bears a large pulling force; , which is confusing to use

Method used

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  • Finished steel strand harness propulsion device
  • Finished steel strand harness propulsion device
  • Finished steel strand harness propulsion device

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Embodiment Construction

[0017] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0018] figure 1 It is a schematic diagram of the structure of the present invention assembled on the finished steel stranded wire harness; figure 2 Yes figure 1 Partial sectional view in the middle; image 3 Yes figure 2 Enlarged view of part P in.

[0019] As shown in the figure, the present invention provides a propulsion device for a finished steel stranded wire harness. The propulsion device includes: a tightening ring 2, a pushing head 3; one end of the tightening ring 2 is connected to one end of the pushing head 3, and the tightening The inner hole at the other end of the ring 2 is sheathed with the finished steel stranded wire harness 1 and clamped on one end of the finished steel stranded wire harness 1; the other end of the propelling head 3 is a cone; the outer contour size of the hoop ring 2 and the propelling head 3 It is smaller t...

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PUM

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Abstract

The invention discloses a finished steel strand harness propulsion device. The propulsion device comprises a hoop and a propulsion head; one end of the hoop is connected with one end of the propulsion head; a finished steel strand harness is sleeved in the inner hole in the other end of the hoop and then is fastened by the hoop; the other end of the propulsion head is a cone; the outline dimensions of the hoop and the propulsion head are smaller than the internal diameter of a construction aperture passage in which the follow-up finished steel strand harness is pushed. The propulsion device has the benefits that the hoop and the propulsion head are fastened and connected into a whole, so that the processing and mounting are convenient and the construction efficiency is high; the front end of the propulsion head is conic, so that the pushing process is more smooth when propulsion equipment is used for pushing; the propulsion device has the advantages of simplicity in processing, convenience in replacement, low cost and the like. The hoop is fastened at the end part of the finished steel strand harness before leaving a factory; so long as the corresponding propulsion head is screwed onto the hoop on a construction site, the propulsion device can be used to push the finished steel strand harness to penetrate through the construction aperture passage corrugated pipe.

Description

Technical field [0001] The invention relates to a propulsion device for finished steel stranded wire harness. Background technique [0002] In the construction of buildings, roads and bridges, multiple prestressed steel strands need to be straightened into bundles and penetrated into the prepared prestressed tunnels, that is, corrugated pipes. When the finished steel stranded wire harness (also called "comb bundle") is threaded in the corrugated pipe, a special tractor needs to be installed at the front end of the finished steel stranded wire harness, and the traction wire rope is passed through the pull ring at one end of the tractor to pull the whole The finished steel stranded wire harness moves in the prestressed tunnel. [0003] Chinese utility model patent 200820035829.5 discloses a prestressed steel strand traction head. The above-mentioned patent includes a traction head and a prestressed steel strand fixing plate. The traction head includes a front cone and a rear hollow ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E04G21/12
Inventor 牛坡
Owner TIANJIN SHINKUNTAI ADVANCED PRESTRESSING TECH
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