The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 26, 2020
Filed:
Nov. 29, 2017
Crrc Construction Engrg. Co., Ltd., Chongqing, CN;
Abstract
Provided is a positioner for reinforcing steel bars of tunnel side wall. At least two groups of reinforcing steel bar positioning arm mechanisms are provided on the same side of an inverted trestle (). The reinforcing steel bar positioning arm mechanism comprises a large arm (), a medium arm () and a small arm (). The large arm () is driven by a first telescopic cylinder () to rotate around a hinge point, such that the large arm () implements rotation in the horizontal direction. The medium arm () is composed of three second telescopic cylinders () in a Z-shaped arrangement in the vertical plane, such that the small arm () implements rotation or expansion in the vertical plane. Two arm rods of the small arm () are each provided with a third telescopic cylinder () to implement the expansion of the arm rod.