The utility model relates to a two tongue formula earth connections are sealed in transmission, including the dop of falling the U -shaped, the top at the insulator spindle is adorned admittedly to the dop of falling the U -shaped, the rubber handle is equipped with admittedly to bottom at the insulator spindle, admittedly, load onto a fluted disc through upper bearing on the insulator spindle, solid dress seals the pole along with upper portion fluted disc pivoted at upper portion fluted disc middle part, at the upper portion fluted disc edge portion's of loading onto hank axle admittedly, admittedly, load a fluted disc through the lower part bearing on the insulator spindle of lower part, at the lower part fluted disc edge portion's of loading hank axle admittedly, the pole is transversely installed to solid dress on the insulator spindle of lower part fluted disc below, admittedly, adorn the transmission tooth disc who meshes with the lower part fluted disc through the transmission bearing at installation pole right -hand member, the driving lever is adorned admittedly at middle part at transmission tooth disc, hank dress transfer line between upper portion hank axle and the lower part hank axle. The utility model discloses the reliability of effectual assurance ground connection prevents that the ground wire from droing, provides the guarantee for operating personnel's operation safety.