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:
Apr. 21, 2026
Filed:
Jan. 21, 2022
Dewertokin Technology Group Co., Ltd., Jiaxing, CN;
Long Li, Jiaxing, CN;
Pengfei He, Jiaxing, CN;
Liming Yang, Jiaxing, CN;
Bin Shen, Jiaxing, CN;
Weiyao Zhou, Jiaxing, CN;
Kangming Tao, Jiaxing, CN;
Guowei Wang, Jiaxing, CN;
Qiqi Ye, Jiaxing, CN;
Guangjiao Zhang, Jiaxing, CN;
Shuangbo Liu, Jiaxing, CN;
DEWERTOKIN TECHNOLOGY GROUP CO., LTD., Jiaxing, CN;
Abstract
Provided is a sofa extension apparatus. The sofa extension apparatus includes a sofa frame, extension brackets, a first linkage rod, a second linkage rod and a linear drive assembly. Each extension bracket includes a sofa fixing member and a leg portion extension assembly, the sofa fixing member is connected to the sofa frame, the leg portion extension assembly is rotatably connected to a front end of the sofa fixing member. Two ends of the first linkage rod are fixedly connected to rear ends of two sofa fixing members respectively. Two ends of the second linkage rod are connected to two leg extension assemblies respectively. The linear drive assembly is configured to drive the first linkage rod and the second linkage rod to move relative to each other, so as to enable the two extension brackets to be extended or retracted.