Patent ID: 11963568
Assignee: UNIPROS CAMPING PRODUCTS COMPANY LIMITED
Field: Other special machines (Mechanical engineering)
Classification: CPC A  B | IPC A  B

Claim 2:
3. The bonding device according to claim 2, wherein:
the first air passage switching member comprises a switching sleeve and a movable plug,
an air exhausting outlet, an air inlet, and an air outlet for the first air outlet pipe are sequentially formed on the switching sleeve,
the air inlet is in communication with the first hot air pipe,
the air outlet is in communication with the first air outlet pipe,
the air exhausting outlet is connected with a first air exhausting pipe,
the movable plug is movably disposed in the switching sleeve,
when the movable plug blocks communication between the air exhausting outlet and the air inlet, the air inlet is in communication with the air outlet,
when the movable plug blocks communication between the air outlet and the air inlet, the air inlet is in communication with the air exhausting outlet, and
the first air passage switching member has the same structure as the second air passage switching member.