Torsion spring type springback-preventing arm strength exercising device

Abstract

The invention aims to provide a torsion spring type springback-preventing arm strength exercising device, which comprises two arm rods, grips are arranged on the two arm rods, the ends, away from thegrips, of the two arm rods are hinged together, and a torsion spring is arranged on a hinge shaft of the two arm rods. The device also includes an arc-shaped hydraulic cylinder, the left end and the right end of the arc-shaped hydraulic cylinder are in pin joint with the arm rods on the two sides through safety rods respectively; the spring is adopted to provide resistance for the arm strength exercising device, and meanwhile, the springback speed of the arm strength exercising device out of control is reduced by utilizing the structural self-limiting characteristic and the hydraulic pressure,so that a user is prevented from being hurt when the arm strength exercising device is out of control and springs back quickly under the condition that the user experience is not influenced, and thesafety of the arm strength exercising device is improved.

Description

technical field [0001] The invention relates to the technical field of fitness equipment and sporting goods, in particular to a torsion spring type anti-rebound arm strength device. Background technique [0002] With the development of social economy and the improvement of people's living standards, the daily pursuit of Chinese people has gradually increased the demand for fitness. As a portable and cheap strength training equipment, arm strength machines are widely loved by the crowd, especially the young people. The resistance required by existing arm strength devices is provided by the elasticity of materials such as springs or rubber. This type of arm strength device has a simple structure and is easy to use. The resistance can be selected from springs of different sizes. In addition, there is also a class of Hydraulic arm strength, which provides the resistance of the arm strength through hydraulic pressure, but this type of strength arm overcomes the hydraulic pressure...

AI Technical Summary

Problems solved by technology

The resistance required by existing arm strength devices is provided by the elasticity of materials such as springs or rubber. This type of arm strength device has a simple structure and is easy to use. The resistance can be selected from springs of different sizes. In addition, there is also a class of Hydraulic arm strength, which provides the resistance of the arm strength through hydraulic pressure, but this type of strength arm overcomes the hydraulic pressure to do work. Compared with the traditional spring type strength arm, the bending rate is slower when using the hydraulic strength arm, and the user experience is more comfortable. Intersection, so the spring arm is still widely used

[0003] However, when the current spring-type arm strength device is bent to the maximum extent, the force of the spring is also at the maximum state. The fast speed spring is easy to damage the vulnerable parts such as the user's jaw, teeth or fingers, which is more dangerous to use

Images