The utility model discloses a shellproof spring flip structure and have this shellproof spring flip structure's battery case. In shellproof spring flip structure locates casing (1), its characterized in that: be equipped with spring clamp slot on the lateral wall of casing (1), spring clamp slot front end parallel position is equipped with the barb that is used for preventing the spring upset. The utility model relates to a shellproof spring flip structure's battery case install spring (2) in the spring clamp slot for the joint switches on battery (4), its characterized in that: the battery with insert one between spring (2) and kept apart plastic insulating piece (3). The utility model discloses owing to adopted above -mentioned technical scheme, can prevent the spring upset, can prevent spring and battery contact failure again, and the installation is firm reliable, greatly improved the utilization benefit of product.