A cushioning type tilting check valve

Abstract

This utility model belongs to the field of valve technology, and in particular to a buffer-type inclined check valve, including a valve body. A rocker arm is provided inside the valve body, and the rocker arm is rotatably connected to the inner wall of the valve body via a pin. In this utility model, when no force is applied, the buffer block, under the action of a first buffer spring, will be higher than the valve seat. The buffer block will contact the valve disc first, and the valve disc will push the buffer block, causing the connecting rod to slide on the positioning rod and compress the first buffer spring. Under the action of the elastic force of the first buffer spring itself, a buffering effect is achieved. The buffer block, through the connecting block, compresses the hinge rod. The hinge rod causes the moving block to slide on the guide rod and compress the second buffer spring. Under the action of the elastic force of the second buffer spring itself, further buffering is achieved. The buffer block, being higher than the valve seat, reduces the impact force when the valve disc closes, avoids collision between the valve disc and the valve seat, reduces wear between the sealing surfaces of the valve disc and the valve seat, and extends the service life of the check valve.

Images