Quick switching device of valve

The utility model relates to a quick switching device of valve, including crank, limiting plate, a supporting beam, spacing collar, a supporting beam and spacing collar fixed connection, a mutual fixed connection of supporting beam one end, the other end along spacing collar equipartition, be fixed with the more than one limiting plate on propping up supporting beam, the limiting plate is the shape of falling a T structure, limiting plate circumference equipartition, the crank is fixed in a supporting beam outer end. The advantage is: overall structure is simple, safe and reliable, and convenient to use, valve switch labour saving and time saving alleviates intensity of labour. Supporting beam sets up the hand wheel structural similarity with valve self, be convenient for with spacing integrated circuit board on the hand wheel, the switching valve application of force is even steady, operation safe and reliable, supporting beam terminal is gone up to add and is established the crank, can realize continuous sw