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.

Date of Patent:
Mar. 02, 2021

Filed:

Oct. 17, 2019
Applicant:

Zhuhai Runxingtai Electrical Co., Ltd., Zhuhai, CN;

Inventors:

Ying Zhang, Zhuhai, CN;

Huaide Ren, Zhuhai, CN;

Yuan Huo, Zhuhai, CN;

Wentao Wang, Zhuhai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47B 21/02 (2006.01);
U.S. Cl.
CPC ...
A47B 21/02 (2013.01);
Abstract

A stepless adjustable telescopic device includes a first support, a second support, and a folding arm connecting the first support to the second support. The folding arm includes a first quadrangular structure, a second quadrangular structure, and a power support device connected to the first quadrangular structure. A first end of the first quadrangular structure is rotatably connected to the first support. A first end of the second quadrangular structure is rotatably connected to the second support, and a second end of the second quadrangular structure is rotatably connected to a second end of the first quadrangular structure via a rotary connection structure. The power support device and the first quadrangular structure form a triangular structure, and the power support device is configured to drive the first quadrangular structure to rotate such that the first quadrangular structure drives the second quadrangular structure to rotate synchronously with the first quadrangular structure.


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