Structure for stabilizing the pressure release of a pressurizing device of a sphygmomanometer

A structure for stabilizing the pressure release of a pressurizing device of a sphygmomanometer, comprising a valve, and said valve having an air channel and an interconnecting pipe interconnected with each other, and said valve having a pressurizing member coupled to an end of said air channel, and another end of said air channel being coupled to an airbag worn around an arm or a wrist of a user, characterized in that:

• said valve includes a piston body disposed at an end of said interconnecting pipe, and said piston body is made of a porous material, such that when said sphygmomanometer is used, said pressurizing member pressurizes the air and sends the air to said interconnecting pipe, and after said airbag is filled up with air, a blood pressure pulse is measured by the air in said airbag passing through said tiny and even air holes of said piston body and a steady tiny airflow passing through said air holes to release pressure to the outside.