Storage battery on-line monitoring device

The utility model discloses an on-line monitoring device for a storage battery, and relates to the technical field of storage batteries. The device comprises a mounting plate and a monitoring device body, one side of the mounting plate is provided with an L-shaped plate and an insertion plate, the upper side of the insertion plate is provided with a clamping block, one side of the monitoring device body is provided with a first channel and a second channel, the L-shaped plate is located in the first channel, the insertion plate and the clamping block are both located in the second channel, and a plate body elastically slides in the monitoring device body. A toothed plate in sliding fit in the second channel is arranged on one side of the plate body, the upper side of the toothed plate is meshed with the lower side of the inserting plate, and a pressing assembly is arranged on the upper side of the plate body. The L-shaped plate is matched with the first channel, so that the mounting stability of the monitorin