Corrugated pipe processing and fixing device for septic tank

The utility model relates to a corrugated pipe processing and fixing device for a septic tank. The septic tank comprises a septic tank body, corrugated pipes, joints and circular rings, the circular ring is in threaded connection with a water inlet of the septic tank; a continuously-penetrating sliding groove is formed in the circular ring and a water inlet of the septic tank; a through connectinghole is formed in the side wall of the circular ring; a door plate is hinged to the connecting hole; the door plate is connected with a spring; the spring is connected with a lifting pin; the joint is fixedly connected to the end part of the corrugated pipe; the connector and the corrugated pipe are coaxially arranged, a boss matched with the sliding groove is fixedly arranged on the side wall ofthe connector, a positioning hole matched with the lifting pin is further formed in the side wall of the connector, and by means of the device, the purpose that the corrugated pipe is easy and convenient to assemble and disas