Large-through diameter flow regulating valve

• Main Authors: XIE LUXIAO, YU BANGZHONG, CHENG QIXIN
• Format: Patent
• Language: Chinese; English
• Published: 30.05.2012
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The utility model relates to a large-through diameter flow regulating valve, which comprises a valve body, wherein a valve cap is arranged on the top of the valve body; a spiral mechanism for regulating the up-and-down motion travel of a valve core spirally is arranged on the valve cap; an air cavity in the valve body is formed by a large air cavity of which the upper end is opened and a small air cavity communicated with the bottom of the large air cavity; an air inlet joint arranged on the valve body is communicated with the small air cavity, and an air outlet joint arranged on the valve body is communicated with the large air cavity; a valve sleeve is inserted into the large air cavity in an airtight mode; an annular seal ring is pressed at the bottom of the valve sleeve and is pressed against a connection opening of the small air cavity and the large air cavity; a steel ball, a spring and a tray are arranged in the small air cavity; one end of the spring is connected to the bottom of the small air cavity,