Weight-adjustable dumbbell

Abstract

The invention belongs to the technical field of fitness equipment and discloses a weight-adjustable dumbbell. The dumbbell comprises a dumbbell handle, fixed blocking pieces are fixedly connected to the left end and the right end of the dumbbell handle, annular blocks are fixedly connected to the opposite sides of the two fixed blocking pieces, positioning sliding grooves are formed in the front faces and the back faces of the two annular blocks, and inserting grooves which are arrayed at equal intervals are formed in the inner bottom walls of the four positioning sliding grooves. According tothe invention, the positioning slide block is aligned with the positioning chute and slides into the positioning chute; the balancing weight cannot rotate on the outer side of the fixed separation blade; the fixed inserting rod is completely inserted into the inserting groove; the elastic piece is in close contact with the inner walls of the inserting grooves, so that the balancing weight cannotmove, weight adjustment is achieved, operation is easy, use is convenient, and the problems that the balancing weight of the dumbbell is disassembled and assembled and fixed through a conventional pressing nut, the operation complexity of dumbbell balancing weight replacement is increased, tools such as a wrench are needed, and use is inconvenient are solved.

Description

technical field [0001] The invention relates to the technical field of fitness equipment, in particular to a weight-adjustable dumbbell. Background technique [0002] Dumbbell is a kind of auxiliary equipment used for weightlifting and fitness exercises. It can exercise upper limb muscles, waist and abdominal muscles. It has a simple structure and is easy to use. It can be used to enhance muscle strength training, so it is very popular. There are different types of dumbbells with non-adjustable weights. As the practice time increases, the user must purchase multiple sets of dumbbells with different weights in order to meet the needs of strength enhancement, which undoubtedly increases the cost. [0003] At present, there have been dumbbells whose weight can be adjusted. The structure is that multiple dumbbell plates are arranged at the two ends of the dumbbell rod, requiring the user to disassemble and assemble the weights of the dumbbell and fix them with conventional compr...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the object of the present invention is to provide a weight-adjustable dumbbell, which has the advantages of simple operation, convenient use, and quick replacement or addition of counterweights, and solves the problem of the weight of dumbbells. Disassembly and assembly, and fixed by conventional compression nuts, increase the operational complexity of dumbbell counterweight replacement, need to use tools such as wrenches, which is not easy to use

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