Hydraulic swing resistance device capable of adjusting bidirectional resistance

Abstract

The invention relates to a variable resistance device, in particular to a hydraulic swing resistance device capable of adjusting bidirectional resistance, which can be widely applied to exercisers. The hydraulic swing resistance device comprises an oil storage cylinder and a resistance cylinder, wherein a rotary shaft is arranged in the center of the interior of the resistance cylinder; the outside diameter of the rotary shaft is smaller than the inside diameter of the resistance cylinder; a fixed block is arranged between the rotary shaft and the inner wall of the resistance cylinder; a movable block is arranged on the rotary shaft; a part between the rotary shaft and the resistance cylinder is divided into two airtight fluid accommodating cavities with variable volumes, namely a first fluid cavity and a second fluid cavity, by the fixed block and the movable block; a first oil return hole is arranged at the bottom of the first fluid cavity; a second oil return hole is arranged at the bottom of the second fluid cavity; two oil return holes are communicated with the oil storage cylinder through a hole channel; and an adjusting valve is arranged on the hole channel. According to the invention, the resistance during forward rotation and reverse rotation of an exerciser rotation mechanism can be respectively adjusted by using a set of hydraulic device, so that the hydraulic swing resistance device is safe, comfortable and noise-free in the use process, compact in structure, long in service life and low in cost.

Description

technical field [0001] The invention relates to a variable resistance device, in particular to a hydraulic swing resistance device with adjustable two-way resistance that can be widely used in exercise equipment. Background technique [0002] With the development of the national economy and the improvement of people's living standards, people's demand for physical exercise equipment that helps strengthen their bodies is increasing. In order to meet the needs of exercise, the existing exercise equipment generally needs to provide a certain amount of resistance in order to improve the strength and toughness of muscles. During people's exercise, the state of muscles changes at any time. Therefore, professional exercise equipment should generally be able to provide adjustable resistance and ensure that users can easily adjust the resistance. Especially for the resistance exercise equipment used by athletes, it is necessary to adjust the resistance value more accurately and conv...

AI Technical Summary

Problems solved by technology

[0003] The currently disclosed device for adjustable resistance on sports equipment has a publication number of: CN1538860A Chinese patent "variable resistance device for exercise equipment", this invention has designed a main fluid chamber and designed it inside or near An auxiliary chamber, the main fluid chamber is used to provide resistance to the rotating mechanism, the auxiliary chamber is used to adjust the amount of fluid in the main fluid chamber to adjust the size of the resistance, the invention provides a set of physical exercise equipment using the hydraulic resistance system Variable resistance device, but the technical solution provided by this invention can only realize the adjustment of the overall resistance of the device, that is, it can only provide rotation resistance in one direction, and can only perform unilateral resistance training

This solution cannot meet the requirements of some physical exercises that require the rotating mechanism to provide adjustable resistance when it rotates forward and reverse. Therefore, this type of equipment generally needs to be equipped with two sets of hydraulic resistance systems, which are inconvenient to use and maintain. Large area, high cost, not suitable for promotion

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