Vacuum adsorber

A vacuum adsorber comprising:

• a housing having a hollow interior, which forms an accommodating cavity and an opening communicating with said accommodating cavity;
• an integrated vacuum pump arranged inside said accommodating cavity;
• a control panel arranged inside said accommodating cavity and controllably connected with said integrated vacuum pump;
• wherein said control panel is controllably connected with a photoelectric switch;
• a power-up assembly having a guide piece and a shading movement portion;
• wherein said guide piece is arranged inside said accommodating cavity and has a hollow interior forming a movement cavity, a cavity wall of which a light transmission opening leads through;
• wherein said shading movement portion is movably arranged inside said movement cavity;
• and
• an activating piece covering inside the opening of said housing and used to push said shading movement portion to move;
• a stepwise end is arranged on the cavity wall of said movement cavity, and a protruding portion set against said stepwise end is arranged on an outer side wall of said shading movement portion.