US Patent 10161629 Gas torch head including burner tube thereof being replaceable

A gas torch head includes a main body, a burner tube releasably inserted into the main body, and a retainer configured to secure the main body and the burner tube together selectively. The retainer is mounted on one of the main body and the burner tube and is movable between a first position engaging with the other of the main body and the burner tube and a second position disengaging from the other of the main body and the burner tube, respectively.