| 摘要 |
The present invention relates to a vacuum pump device which makes a cam shaft to make a vacuum container, a vacuum pack, etc. through the pumping while eccentrically rotating from side to side and eccentrically ascending and descending upward and downward with the cam motion of a cam shaft by motor rotation. Especially, a rotary plate (20) which is axis-installed on a motor axis (10) of a driving motor (M) and the upper side of the cam shaft (30) are installed to be eccentrically connected. A bellows tube (60) is connected and installed to a space between the lower side of the cap shaft (30) and a pumping operating room (50). The bellows tube (60) is vacuum-operated by being compressed, expanded, and pumped when the cam shaft (30) is eccentrically rotated with cap operation while ascending and descending upward and downward. Thus, service life is long unlike a traditional piston type since the generation of abrasion is less and vibration noise can be remarkably reduced. Moreover, the present invention provides marketability by preventing the vacuum container, the vacuum pack, etc. from being polluted by not using a piston lubricant like the traditional piston type. |
