Patent ID: 9709187
Date: 2017-07-18
CPC Classifications: B25C,F16K

Claim:
1. An air source controlling device for a pneumatic nail-gun, comprising: a body comprising a controlling chamber located therein for connecting a compressed air source, an air passage for communicating the controlling chamber and an internal portion of the pneumatic nail-gun, a switch channel communicating the air passage and an accommodation space, and an air vent hole communicating the accommodation space and an external environment; a choke valve disposed in the controlling chamber, the choke valve being switchable between a communicating status and a non-communicating status for controlling the opening or closing between the controlling chamber and the air passage; and a switch comprising an actuating member slidably disposed in the switch channel and the accommodation space without covering the air vent hole, a sealing member being disposed on an external surface of the actuating member and being sealed with an internal surface of the switch channel, the actuating member activating the choke valve; wherein when the actuating member is moved from the accommodation space to the switch channel for activating the choke valve to the communicating status, the sealing member is sealed with the internal surface of the switch channel; otherwise, when the actuating member is moved to the accommodation space for activating the choke valve to the non-communicating status, the sealing member is located in the accommodation space.