FIELD: valve industry.
SUBSTANCE: invention relates to means of controlling shutoff valves, including gear control units. Two-speed manual drive of shutoff valves comprises two half-bodies, flywheel, rigidly connected with drive shaft-carrier, installed on driving shaft-holder element, fixed wheel with external teeth, moving wheel with internal teeth conjugated with the hub with pressure element and connected by means of elastic coupling with the driven link. Drive differs from analogues in that the elastic coupling unit is made in the form of a central rod, by one end rigidly connected to the driven link, and by the other end connected to the hub of the movable wheel with internal teeth by means of an angular coupling.
EFFECT: high level of technological effectiveness of the mechanism.
1 cl, 3 dwg
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|
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