Duplex hand grabbing automatic weight increasing and decreasing type dumbbell

Abstract

The invention provides a duplex hand grabbing automatic weight increasing and decreasing type dumbbell. The dumbbell comprises a base, a dumbbell rod and dumbbell heads located at the two ends of the dumbbell rod, each dumbbell head is composed of a tail frame, a screw and a plurality of balancing weights, a containing groove is formed in the base, a positioning fork opening with an opening in the top is formed in each balancing weight, a lifting arc is arranged in each positioning fork opening, and a screw rod is arranged on the dumbbell rod in a sleeving mode. The screw rod and an installation frame for containing the balancing weights are arranged, the screw rod is driven by an axial moving mechanism to be inserted into the lifting arcs of the balancing weights, so that the balancing weights can be fixed to the tail frames at the two ends of the dumbbell rod, and balance weight operation is easy and convenient. Meanwhile, a handle is rotated to drive the screw rod to move, the locking block is arranged, when the dumbbell is lifted up, the clamping head of the locking block is clamped in the spigot groove to form a safe self-locking mechanism, the handle cannot rotate, the screw rod cannot axially move, then the stability of the balancing weight installed on the tail frame can be guaranteed, and the safety of the dumbbell is improved.

Description

technical field [0001] The invention relates to the field of body-building equipment, in particular to a dual-hand grip dumbbell with automatic weight increase and decrease. Background technique [0002] Dumbbell is a kind of auxiliary equipment for weightlifting and fitness exercises. It is used for muscle strength training and muscle compound action training. Hand-held dumbbells can use the weight of dumbbells to perform resistance active exercises and train muscle strength. The weight of traditional dumbbells cannot be adjusted. As the practice time increases, users must purchase multiple sets of dumbbells with different weights in order to meet the needs of increased strength; It is inconvenient to disassemble the counterweight with tools such as a wrench. Contents of the invention [0003] The technical problem to be solved by the present invention is that the weight of traditional dumbbells cannot be adjusted, and the user must purchase multiple sets of dumbbells wi...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the weight of traditional dumbbells cannot be adjusted, and the user must purchase multiple sets of dumbbells with different weights in order to meet the needs of increased strength as the practice time increases; there are also dumbbells with adjustable weights on the market, but Every time the counterweight is adjusted, it is necessary to disassemble the counterweight with the help of tools such as a wrench, which is inconvenient to operate. The present invention provides a double-hand grasping automatic weight increase and decrease type dumbbell to solve the above problems

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