Valve operating structure

A valve operating structure comprising:

• a mounting frame,
• first and second control valves having first and second slide spools, respectively, which extend parallel to each other,
• a control lever operatively connected to a lever interlocking member for selectively operating said first and second valves,
• an interlock switching mechanism for moving said lever interlocking member between a first interlocking position to engage said first slide spool, and a second interlocking position to engage said second slide spool,
• wherein said lever interlocking member is pivotable about a pivotal point located at substantially the same distance to said first and second slide spools, said lever interlocking member including a linear member extending from said pivotal point and having a free end extending to an intermediate position transversely of a longitudinal axis of said first and second slide spools, and said first and second interlocking positions are selectively provided by connecting said free end to one of said first and second spools through connecting means including engaging pin means connected to one of said first and second slide spools and the free end of said linear member, and ring-like connector means connected to the other of said first and second slide spools and the free end of said linear member, said linear member being oscillatable in three dimensions for fitting said ring-like connector means on said engaging pins means, and
• stop means for connecting said mounting frame and said connection means preventing the turning of said first and second slide spools about said longitudinal axes of said first and second slide spools of said first and second valves, whereby said stop means positions said pair of engaging pin means in a substantially coplanar arrangement to permit said connecting means to be in alignment when said control lever is in said first interlocking position.