| 摘要 |
The present invention relates to a pneumatic inverting valve. A piston is vertically accommodated in an internal space, with mobility. A supply port is funneled onto an upper space of the piston. The internal space of the piston is funneled with the upper space of the piston by a first hole formed on the piston. A lower space of the piston is funneled with the internal space of the piston by a second hole formed on the piston. A delivery port and an exhaust port are respectively funneled with the lower space of the piston. Side spaces of the piston are funneled with a control port. Moreover, the side spaces of the piston are funneled with the control port, and the piston is supported downward by the elastic force of a returning spring. When air is not flowed in through the control port, the piston is descended by the returning spring, and shuts the exhaust port so as for the air flowed in through the supply port to flow through the upper, lower, and internal spaces of the piston, thereby reaching the delivery port. When air is flowed in through the control port, compressed air, filled on the side spaces of the piston, shuts the supply port, while overcoming the elastic force of the returning spring, so as for the air flowed in through the delivery port to flow through the lower space of the piston, thereby reaching the exhaust port. |
