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:
Aug. 05, 2025
Filed:
Sep. 08, 2021
Hao's Fitness Equipment (Shanghai) Co., Ltd. Trading Ltd., Shanghai, CN;
Liqiang Guo, Zhejiang, CN;
HAO'S FITNESS EQUIPMENT (SHANGHAI) CO., LTD. TRADING LTD., Shanghai, CN;
Abstract
A dumbbell handle, a dumbbell and a dumbbell base, wherein the dumbbell handle comprises: a handle body; a gear rotation assembly, wherein a planetary gear mechanism is sleeved on one end of a gear shaft, another end of the gear shaft is nested in a first cavity, and an inner wall of each of two ends of a second cavity of the gear shaft is provided with a first protruding block; a telescopic shaft, wherein a thread groove that matches the first protruding block is provided in a side wall of the telescopic shaft; and a cam mechanism, wherein a driving wheel engages with a driven wheel, an elastic member is arranged on the side of the driven wheel away from the driving wheel, the driving wheel is sleeved on an end portion of the gear shaft, and the driving wheel is driven by the gear shaft to rotate.