Multifunctional safety first-aid kit lock

The invention discloses a multifunctional safety first-aid kit lock, relates to the technical field of safety protection devices, and aims to solve the problems that if a water control assembly is accidentally damaged, a kit body cannot be opened, a drowning person cannot manually open the kit body for self rescue, and the survival probability is reduced. According to the technical scheme, the multifunctional safety first-aid kit lock is characterized by comprising a bag body, a bag cover, an oxygen bottle and an air pipe, an automatic uncovering assembly and a manual uncovering assembly are arranged in the bag body, the manual uncovering assembly comprises a handle and a manual end gear connected to the driving end of the handle, a movable push rod fixed to a bottle plug is arranged in the bag body, and a fixing base is connected to the back face of the movable push rod; a manual end rack meshed with the manual end gear is arranged on the side face of the fixing base. The cover can be opened manually or auto