DLirect current supply lead-acid storage battery device adopting direct current supply

The invention discloses a direct current supply lead-acid storage battery device adopting direct current supply. The direct current supply lead-acid storage battery device comprises a shell, an opening is formed in the top of the shell, a shell cover is fixedly mounted at the top of the shell, a fixing seat is slidably mounted in the shell, a lead storage battery body is arranged at the top of thefixing seat, a fixing block located below the fixing seat is fixedly mounted on the bottom inner wall of the shell, a first groove is formed in the top of the fixing block, a movable rod is slidablymounted in the first groove, the top end of the movable rod extends out of the first groove and is fixedly mounted at the bottom of the fixing seat, a second groove is formed in the bottom end of themovable rod, an ejector rod is slidably mounted in the second groove, the bottom end of the ejector rod extends out of the second groove and is fixedly mounted on the bottom inner wall of the first groove, and a first spring is