Quick-reset anti-backflow check valve

The utility model relates to the technical field of check valves, and discloses a quick reset anti-backflow check valve which comprises a valve body, a valve cover is fixedly connected to the middle of the upper end face of the valve body through a plurality of bolts, the valve body comprises a valve shell, and a valve cavity is fixedly connected to the inner wall of the valve shell. And a fixed inclined block is fixedly connected to the surface of one side of the inner wall of the valve shell. According to the check valve, the fixing block and the sealing circular plate on one side of the interior of the valve body are burst through by media, so that the fixing rod and the blocking circular plate move in the hole, the spring starts to be tightened, the blocking circular plate reaches the end of the hole and is blocked, and the fixing block and the fixing inclined block are separated to enable the media to flow through; and under the action of a first spring, a fixing rod is retracted under the action of the