Quick opening and closing valve driving mechanism capable of realizing lifting, rotating and clamping

Abstract

The invention discloses a quick opening and closing valve driving mechanism capable of capable of realizing lifting, rotating and clamping. Through the composite structure design of a bracket, a lower driving sleeve, an upper driving sleeve, and a pin, a groove, a hole and a thread in a driving rod, when the driving rod is operated to rotate, the lifting, rotating, falling and clamping of the lower driving sleeve can be realized by one-time rotation of the driving rod through the switching of the manual driving, linking and spacing of the lower driving sleeve, the upper driving sleeve and the driving rod; and the lower driving sleeve of the valve driving mechanism is externally connected with a plug valve and can quickly open or close the plug valve, so that the operation control efficiency is improved, the operation difficulty of workers is reduced, and each of manual control and automatic control is more convenient.

Description

technical field [0001] The invention relates to the field of valves, in particular to a driving mechanism for fast opening and closing valves that realizes lifting, rotating and gate tightening. Background technique [0002] The plug valve is a rotary valve with a plunger-shaped closing part. By rotating 90 degrees, the channel port on the valve plug communicates with or separates from the channel port on the valve body to realize opening or closing. The flow resistance of this type of valve is much smaller than that of globe valve, butterfly valve, and plunger valve, and is only slightly larger than that of full-bore ball valve. The shape of the valve plug can be made into a cylindrical shape. . Lifting plug valves are suitable for special-purpose pipelines such as high temperature resistance, high pressure, wear resistance and erosion resistance, especially for medium pipelines with particles, such as traditional industries such as electric power, metallurgy, petrochemica...

AI Technical Summary

Problems solved by technology

[0003] Some lifting plug valves currently on the market adopt the design of separation of lifting and switching operations. When the valve is opened and closed, it is necessary to turn the lifting device first to make the valve rise, then turn the switch to realize the opening and closing of the valve, and finally need to turn the lifting device again to make the valve open and close. The valve is reset, and a single opening and closing requires six actions to change the steering. It is not particularly convenient to use, and there is room for further improvement.

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