Anti-siphon bladder balloon for cleaning dust in electronic product e.g. computer, has valve plate connected to air discharge port, where front of valve plate is connected to ventilation air outlet opening

摘要

The balloon has a sphere (1) and a bubble tube (2), where the front of the sphere is equipped with an air vent (11), and the back of the sphere is equipped with a unidirectional air inlet valve (12). The bubble tube is equipped with an air discharge port (21), where the unidirectional air inlet valve is mounted inside the bubble tube. A valve plate (23) is connected to the air discharge port, where the front of the valve plate is connected to a ventilation air outlet opening.