China Blood Pressure Air Pump Motor, the working principle of the air pump is: the engine drives the crankshaft of the air pump through two triangle belts, so as to drive the piston to pump, and the hit gas is introduced into the air storage cylinder through the guide pipe.On the other hand, the air cylinder and through a guide pipe to the gas in the air cylinder into the pressure regulating valve fixed on the air pump, so as to control the air pressure in the air cylinder.When the air pressure in the air reservoir does not reach the pressure set by the pressure regulating valve, the gas entering the pressure regulating valve from the air reservoir cannot top open the pressure regulating valve;When the air pressure in the air cylinder reaches the pressure set by the pressure regulating valve, the gas from the air cylinder into the pressure regulating valve opens the pressure regulating valve, enters the air pump and the pressure regulating valve in the airway, and controls the air inlet of the air pump to open normally through the airway, so as to make the air pump empty load operation, achieve the purpose of reducing power loss and protecting the air pump.When the air pressure in the air storage cylinder is lower than the pressure set by the pressure regulating valve due to loss, the valve in the pressure regulating valve is returned by the return spring, and the control air path of the air pump is disconnected, and the air pump starts pumping again.
