Connecting assembly and bidirectional bending adjusting guide sheath

The utility model discloses a connecting assembly which comprises a guide body and a sliding body, and the guide body is provided with at least one limiting part. The sliding body is slidably connected with the guide body, the sliding body comprises a connecting part, the connecting part is suitable for being fixedly connected with the pull wire, and the sliding body has a sliding state in which the sliding body acts on the connecting part under the driving of external force to enable the pull wire and the connecting part to synchronously move and a limiting state in which the sliding body acts on the connecting part to be clamped in the limiting part to fix the pull wire. According to the connecting assembly of the structure, the sliding body is driven through external force, the guiding body guides the sliding body in a sliding fit mode, and the sliding body drives the traction line to move together; and when the pull wire moves to a preset position, the body is slid through external force, so that the conn