Foreign substance trap device and cooking device using same

A foreign substance trap device comprising:

• a first member in which at least one fluid intake hole is formed;
• a second member in which at least a portion of an exhaust channel, through which gas in liquid flowing inside through the fluid intake hole is discharged, is formed;
• and
• a movable member movably disposed between the first member and the second member and closing the exhaust channel by being moved by liquid in fluid flowing inside through the fluid intake hole,
• wherein the movable member includes:
• a foreign substance shield;
• a lifting shaft protruding downward from the foreign substance shield;
• an anti-separation portion extending from a lower end of the lifting shaft and having a diameter larger than the lifting shaft;
• wherein a lifting shaft accommodation hole through which the lifting shaft passes is formed in a bottom of the first member, and
• wherein a gap is formed between the lifting shaft accommodation hole and the lifting shaft, so the movable member freely moves up and down with respect to the first member as long as the lifting shaft is positioned in the lifting shaft accommodation hole.