Isolation earthing device used for solid insulation ring main unit

Provided is an isolation earthing device used for a solid insulation ring main unit. A first driven moving contact (2) is disposed on the upper left end of a driving contact (1). A side of the first driven moving contact is fixed on the driving contact (1) by a first screw rod (4), a first spring (8), a fifth spring (12), and a first nut in sequence from bottom to top. The other side is fixed on the driving contact (1) by a second screw rod (5), a second spring (9), a sixth spring (13), and a second nut (17) in sequence from bottom to top. A second driven moving contact (3) is disposed on the upper right end of the driving contact (1). A side is fixed on the driving contact (1) by a third screw rod (6), a third spring (10), a seventh spring (14), and a third nut (18) in sequence from bottom to top, and the other side is fixed on the driving contact (1) by a fourth screw rod (7), a fourth spring (11), an eighth spring (15), and a fourth nut (19) in sequence from bottom to top.