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:
Feb. 25, 2025

Filed:

Mar. 30, 2023
Applicant:

Zhejiang Kangwang Industry & Trade Co., Ltd, Zhejiang, CN;

Inventor:

Ping Wang, Zhejiang, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B 21/075 (2006.01); A63B 21/072 (2006.01);
U.S. Cl.
CPC ...
A63B 21/075 (2013.01); A63B 21/0726 (2013.01); A63B 21/0728 (2013.01);
Abstract

The application relates to a dumbbell which is convenient for adjusting a load. By arranging telescopic sleeves which can be telescopically adjusted in a handle of the dumbbell, a number of counterweights nested on the telescopic sleeves is controlled, thus achieving an easy adjustment of the load. By arranging a rotatable knob, the telescopic sleeves inside the handle are driven to act through a gear transmission. Meanwhile, due to a position limitation of a division bar of the dumbbell, the counterweights nested on the telescopic sleeves are prevented from sliding left and right, thus ensuring a firm coupling.


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