The cover opening
delay reminding device comprises a heat preservation
barrel and a
barrel cover, a top plate is horizontally and fixedly arranged at an opening in the upper portion of the heat preservation
barrel, and a bottom box is installed on the portion, on one side of the heat preservation barrel, of the lower portion of the top plate in a communicating mode; a storage battery, a
delay control module and a
buzzer are installed in the bottom box, the barrel cover is movably arranged above the opening, a cover opening
assembly is arranged on the top plate, a trigger switch
assembly is installed in the cover opening
assembly, and the trigger switch assembly is electrically connected with the storage battery, the
delay control module and the
buzzer in series. A locking lug is installed on the cylinder cover, and a lock catch assembly matched with the locking lug is installed on the top plate. The device can give an alarm sound after the cover of the
welding rod barrel is opened for a certain time so as to remind an operator to cover a
welding rod in time, and the heat preservation and storage capacity of the
welding rod barrel is guaranteed.