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:
Oct. 19, 2021
Filed:
Apr. 27, 2020
Infrastructure Renewal Institute of Southern China, Guangdong, CN;
Welead Infrastructure Engineering Technology (Zhengzhou), Ltd., Henan, CN;
Fuming Wang, Guangdong, CN;
Hongyuan Fang, Guangdong, CN;
Peng Zhao, Henan, CN;
Yanhui Pan, Henan, CN;
Xianfeng Zhao, Henan, CN;
Yingli Wang, Henan, CN;
Infrastructure Renewal Institute of Southern China, Guangdong, CN;
WELEAD Infrastructure Engineering Technology (Zhengzhou), Ltd., Henan, CN;
Abstract
A thin-slotting lifting synchronous grouting device and its usage method are provided. The device includes a hollow force-bearing column through which a feeding pipe passes; wherein: left and right cutting plates are respectively fixedly arranged on each side of the hollow force-bearing column; a left connecting plate is fixedly arranged on an outside of the left cutting plate; a right guiding column is fixedly arranged on an outside of the right cutting plate; center lines of the left connecting plate, the right guiding column and the hollow force-bearing column are in a same plane; a top end of to the feeding pipe is connected to a grouting device, and a bottom end is connected to a spraying device; a spraying nozzle of the spraying device stretches out along the hollow force-bearing column; and a lower end of the hollow force-bearing column is connected with a disposable conical head.