Air pressure stepless and adjustable constant-resistance health and fitness facility damper

Abstract

The invention provides an air pressure stepless and adjustable constant-resistance health and fitness facility damper which is used for replacing existing balance weight iron. The air compressibility is used, the pressure of air in a closed cavity with variable volume is adjusted to change resistance, and the air constant temperature process principle is used; the method that a specific value of a main force arm to an auxiliary force arm is changed to mend changes, generated by volume changes, of the pressure in a compressed cavity is used for achieving the constant-resistance output function; as the air pressure in the compressed cavity is continues and adjustable in a certain range, the generated resistance is continuous and adjustable. The air pressure stepless and adjustable constant-resistance health and fitness facility damper has the beneficial effects that the heavy balance weight iron is replaced with an air cylinder, and the device weight is effectively reduced; stepless and continuous adjustment on the resistance can be carried out through compressed air; and the air pressure stepless and adjustable constant-resistance health and fitness facility damper is more suitable for training requirements of professional athletes.

Description

1. Technical field [0001] The invention is an air pressure stepless adjustable constant-resistance body-building equipment damper, which belongs to the technical field of body-building sports equipment. 2. Background technology [0002] Strength fitness equipment is mainly composed of two parts: the operating mechanism and the counterweight mechanism. The operating mechanism has its own special structure according to the position of the muscles to be trained, and the counterweight mechanism is basically the same in the series of products. At present, domestic The counterweight source of traditional strength fitness equipment at home and abroad all adopts the method of superimposed counterweight iron, which trains muscles by overcoming gravity, and its strength is adjusted by changing the number of counterweight iron. The method has the following disadvantages: [0003] ①The space occupied by the counterweight iron is large, so the counterweight source can only be placed in ...

AI Technical Summary

Problems solved by technology

[0003] ①The space occupied by the counterweight iron is large, so the counterweight source can only be placed in a specific position as an independent unit, making the equipment occupy a large area;

[0004] ②The counterweight iron uses more materials, which makes the equipment heavier, which not only increases the cost of raw materials but also increases the transportation cost;

[0005] ③The size of the force does not have the function of stepless continuous adjustment;

[0006] ④When the counterweight iron falls back, there will be impact and great noise, especially when the lifting wire rope or the connecting piece is broken, the counterweight iron will fall out of control and smash the equipment, and even accidents will occur

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