Turnout close contact detector and sealed contact group thereof

The utility model discloses a turnout close contact detector and a sealed contact group thereof. The contact group comprises a contact seat, a sealing cover which is in sealing butt joint with an upper opening of the contact seat, and two static contact assemblies and a movable contact assembly which are arranged in the contact seat. The movable contact shaft transversely penetrates through the lower portion of the contact seat, sealing rings are arranged at the joints of the movable contact shaft and the side wall of the contact seat, a through hole for a connecting wire to penetrate through is formed in the side wall of the contact seat, and a waterproof cable gland is arranged at the position of the through hole. According to the utility model, through the arrangement of the contact seat and the sealing cover, and the sealing arrangement of the movable contact shaft and the connecting wire, the internal part of the contact seat can be ensured to be in a full-sealed state, the dustproof and waterproof grade