Direct-acting type self-counteracting air pressure air valve

• Main Authors: GUO ZHANJIE, ZHAO HAORAN, MOU GUANGJIANG
• Format: Patent
• Language: Chinese; English
• Published: 02.09.2022
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; FIRE-FIGHTING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HUMAN NECESSITIES; LIFE-SAVING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model provides a direct-acting type self-counteracting air pressure air valve which comprises a main valve body, an air inlet and an air outlet, a pressure-bearing cavity and a non-pressure-bearing cavity are sequentially arranged in the main valve body from top to bottom, the pressure-bearing cavity is communicated with the air inlet and the air outlet, a sealing piston is arranged in the pressure-bearing cavity, and the non-pressure-bearing cavity is communicated with the air inlet and the air outlet. The sealing piston can move up and down along the inner wall of the pressure-bearing cavity, a first transverse air channel and a second transverse air channel are formed in the sealing piston, the first transverse air channel and the second transverse air channel are communicated through a longitudinal air channel, and the sealing piston penetrates through the pressure-bearing cavity to reach the interior of the non-pressure-bearing cavity. The bottom of the sealing piston is connected with a rese