SMALL-SIZED PORTABLE VACUUM-HOLDING DEVICE

摘要

A vacuum-holding device includes a nozzle body and a vacuum generating device. The nozzle body defines a first air channel. In the vacuum generating device, a piston head received within the first air channel, a piston ring is sleeved on the piston head and making an air-tight seal between the piston head and the nozzle body, a piston rod connecting the piston head with an operation board, a guiding device for guiding the piston head along with the piston rod to move along a depth direction of the first air channel, and an actuation device is included in the vacuum generating device for quickly pulling the piston head along with the piston ring out of the first air channel after the piston head along with the piston ring is pushed in the first air channel by operating the operation board.

主权项

1. A vacuum-holding device, comprising:
a nozzle body comprising a first end surface and a second end surface, the nozzle body defining a straight first air channel in the first end surface, and defining a second air channel communicating with the first air channel in the second end surface, the second end surface being configured for holding objects; and a vacuum generating device, comprising:
a piston head received within the first air channel;a piston ring sleeved on the piston head and making an air-tight seal between the piston head and the nozzle body;an operation board;a piston rod partially received in the first air channel and connecting the piston head with the operation board;a guiding device for guiding the piston head to move along a depth direction of the first air channel; andan actuation device for quickly pulling the piston head out of the first air channel after the piston head is pushed into the first air channel by operating the operation board.