Matched connection storage battery cover for electric vehicle and caulking groove of storage battery cover

The utility model provides a matched connection storage battery cover for an electric vehicle and a caulking groove of the storage battery cover. At present, electric vehicle manufacturers in China adopt the following fixing modes of storage batteries: 1, the positive and negative electrode end columns of the adjacent storage batteries are connected through bolt fittings, but the end columns of the storage batteries are easy to damage and the fixing effect is not ideal; 2, a fixed caulking groove is adopted, the storage battery is placed in the caulking groove and the moving range of the storage battery is reduced, but the storage battery is difficult to place or the fixing effect is not ideal due to that the caulking groove is smaller or bigger. The matched connection storage battery cover for the electric vehicle and the caulking groove of the storage battery cover are characterized in that symmetrical convex clamping buckles and concave clamping grooves are formed on the storage battery cover and the recta