Patent ID: 7802514

Claim:
A locking structure of a hot beverage machine with a steam sealing device, wherein the steam sealing device is provided in a front supporting base of said hot beverage machine, with the locking structure comprising: a base having a boundary hole; a feeder supported on the base; a sealing element with a steam filter net received on the sealing element; a connecting member having an engaging portion on a bottom thereof, with the engaging portion having a locked position entered into the boundary hole and an unlocked position out of the boundary hole, with the engaging portion pivotably moveable relative to the base from the unlocked position to the lock position; a guiding member having an outer surface, with the connecting member fixed to the guiding member to prevent relative movement, with the sealing element, the connecting member and the feeder forming a tight assembly; a joining member resting on the guiding member; a shifting member pivotably positioned on the joining member; and a top cover on the shifting member, with the top cover fixed to the joining member to prevent relative movement; wherein horizontal sections are respectively formed at ends of sloping guiding grooves on the outer surface of said guiding member, wherein protrusions are formed on an inner surface of said shifting member and received in the sloping guiding grooves, with rotation of the shifting member relative to the joining member while the protrusions are received in the sloping guiding grooves causing the guiding member to move downward to make a tight seal with the feeder on the bottom, wherein the protrusions moving into the horizontal sections drive the engaging portion on the bottom of the guiding member to enter the boundary hole of the base.