Sheath mechanism and anti-dry-burning probe

The utility model provides a sheath mechanism and an anti-dry-burning probe, relates to the technical field of gas stoves, and aims to solve the problems that the anti-dry-burning probe is influenced by a surrounding heat flow field, so that the temperature sensing precision is reduced, and false triggering and misjudgment are caused to a certain extent. The utility model provides a sheath mechanism. The sheath mechanism comprises a first sheath; a mounting through hole penetrating through the first sheath is formed in the axial direction of the first sheath, and a plurality of vent holes penetrating through the first sheath in the axial direction of the first sheath are further formed in the first sheath and in the circumferential direction of the mounting through hole; the vent holes are conical holes, and the diameter of the air inlet ends of the vent holes is larger than that of the air outlet ends of the vent holes. 本实用新型提供一种护套机构及防干烧探头，涉及燃气灶技术领域，以在一定程度上解决防干烧探头受周围热流场影响，导致温度传感精度下降，产生误触发及误判的问题。本实用新型提供的护套机构，