Contact type signal connector

The utility model discloses a contact type signal connector, which relates to the technical field of machine connecting devices, and comprises a connecting column and a joint, one side of the connecting column is fixedly connected with a rubber leather sheath, the rubber leather sheath has good insulation and protection effects, and a protection layer is fixedly connected below the inner wall of the rubber leather sheath. The protective layer is used for protecting an internal circuit, a circular groove is formed in the middle of the protective layer, penetrates through the rubber leather sheath and is fixedly connected with the side, close to the rubber leather sheath, of the connecting column, a fixing sleeve is slidably connected to the side, away from the rubber leather sheath, of theconnecting column, and the fixing sleeve can freely move left and right by a small distance and is hollow. When the connector is used, the elastic piece is pressed inwards by a hand, the elastic pieceextrudes the telescopic s