Dust collector diaphragm valve capable of performing manual emergency operation

A dust collector diaphragm valve capable of performing manual emergency operation, the dust collector diaphragm valve comprising:

• a body configured such that an air inlet part and an air outlet part are formed in two directions as an internal air flow path and a passage are connected to each other;
• a cover configured such that a pressure vent is formed on one side thereof as an internal air flow path and a passage are connected to each other;
• a rubber plate configured to be installed between the body and the cover so that high-pressure air supplied through the air inlet part simultaneously fills both the air flow paths, forms equal pressure, and closes a passage of the air outlet part;
• a solenoid valve configured to be installed behind the cover so that an internal plunger instantaneously opens the pressure vent while being returned (moved forward) by elastic repulsive force after being instantaneously moved backward in response to a pulse operation signal, thereby dropping internal pressure in the air flow path;
• and a spring configured to be installed at a center of a back side of the rubber plate in order to return (move forward) the rubber plate until an operation of the solenoid valve is stopped and to thus make the rubber plate close the air outlet part;
• wherein an emergency operation switch configured to perform control so that the rubber plate is instantaneously moved backward and then returned (moved forward) by forcibly discharging high-pressure air inside the air flow path in the cover irrespective of the pressure vent whenever the emergency operation switch is manually pressed when a pulse operation signal and the solenoid valve fail and thus breaking equal pressure is installed on one side of the cover.