Liquefied gas bottle angle valve switching device

The utility model relates to a liquefied gas fills the technical field of dress, provides a liquefied gas bottle angle valve switching device, including the pneumatic valve hand wheel open and shut the device with be used for reading the gas cylinder on electronic tag information's electronic tags read write line, the pneumatic valve hand wheel opens and shuts the device including the pinch rollerrotation driving device rotatory with making the pinch roller who is used for the block in the hand wheel periphery. Compared with the prior art, the utility model provides a liquefied gas bottle angle valve switching device, adopt the electronic tags read write line, with the gas cylinder information that is arranged in reading electronic tags on the gas cylinder, treat that this gas cylinder information validation is through the back, rethread pneumatic valve hand wheel opens and shuts the device and opens the pneumatic valve, aerify the gas cylinder, thus, the labor intensity of operationpeople is greatly lowered,