The invention discloses an adjustable buffer type inclined
check valve, and relates to the technical field of check valves, when a medium flows in from an inlet end, close to one side of a protective appliance, of a valve body, pressure can jack up a connecting frame body to
mount a valve pin shaft, the valve pin shaft drives a valve clack and the valve pin shaft to rotate upwards to open, a flow channel is completely smooth, and the medium passes through smoothly; when the
inlet pressure is reduced or the outlet pressure is higher than the
inlet pressure and has a
backflow trend, the reverse pressure and the
dead weight of the valve clack enable the valve clack to rapidly rotate downwards and be tightly attached to the
valve seat block, sealing is formed,
backflow is thoroughly blocked, a medium is prevented from being poured back to the upstream, and one-way flowing is stably kept. The fixing frame is matched with the
valve seat block for inclined installation, the sealing effect between the
valve seat block and the inner wall of the valve body is kept, an inclined installation structure is adopted, the opening and closing angle of the valve clack is small, the closing
stroke is short, valve closing is faster, the sealing face is arranged in an inclined mode, the medium flow state is smoother, scouring is small, and sealing stress is even.