US 12,303,733 B2
Buckle for dumbbells and barbells
Yiheng Zhang, Guangdong (CN)
Filed by Yiheng Zhang, Guangdong (CN)
Filed on Jun. 2, 2023, as Appl. No. 18/328,294.
Claims priority of application No. 202321231750.0 (CN), filed on May 19, 2023.
Prior Publication US 2024/0382795 A1, Nov. 21, 2024
Int. Cl. A63B 21/072 (2006.01)
CPC A63B 21/0728 (2013.01) 10 Claims
OG exemplary drawing
 
1. A buckle for dumbbells and barbells, the buckle comprising:
a clamping head;
two locking keys symmetrically mounted on the clamping head; and
two operation bars symmetrically mounted on the clamping head and respectively hinged to the two locking keys;
wherein the clamping head is a C-shaped structure having an opening at one end thereof;
wherein an accommodating groove and two mounting holes in communication with each other are formed in the clamping head, the accommodating groove is located on an outer side of the clamping head away from the opening and is configured to accommodate the two operation bars, and the two mounting holes are located on an inner side of the clamping head close to the opening and are configured to respectively accommodate the two locking keys;
wherein first fixing pins are respectively mounted on the two locking keys, and the first fixing pins are hinged to the clamping head;
wherein second fixing pins are respectively mounted on the two operation bars, the second fixing pins are hinged to the clamping head; and
wherein ends of the two operation bars close to the two mounting holes are hinged to ends of the two locking keys away from the two mounting holes, respectively.