Fireproof lock

The utility model discloses a fireproof lockset which comprises a lock body and a fireproof gasket, the fireproof gasket comprises an expansion material layer, and the fireproof gasket is fixed on the surface of the fire side of the lock body in a covering mode. The fireproof lock has good fireproof and heat-insulating performance, is low in production cost, can still keep high-level sealing performance when heated or on fire, can effectively prevent poisonous smoke or flames from penetrating through gaps in the lock to cause poisoning or fire crossing, and is safe and reliable. The fireproof lock is stable in overall structure and free of structural change when encountering a fire disaster, the lock can still be normally used in the fire disaster, and the fireproof lock can still be opened from the outside through a key after the fire disaster. 本实用新型公开了一种防火锁具，包括锁体和防火垫片，防火垫片包括膨胀材料层，且防火垫片覆盖固定在锁体受火侧的表面上。本实用新型的防火锁具具有良好的防火隔热性能，生产成本较低，在受热或与火时仍能保持较高水平的密封性，可有效避免有毒烟气或者火苗通过锁具中的缝隙穿过而造成中毒或串火现象，本实用新型的防火锁具在遭遇火灾时整体结构稳定，不会发