Valve assembly for pressure fluids

A pressure fluid valve assembly, comprising,

• a base plate having a first connection surface, first fluid connection openings debouching on said first connection surface, a bottom surface facing away from said first connection surface having a continuous recess (17), and a pair of opposite side surfaces having detent troughs (12) arranged on protruding portions of said side surfaces (1c) of said base plate (1), said protruding portions having a wedge-shaped surface which tapers (13) inwardly from a locus proximal to said first connection surface toward said side surfaces distal from said first connection surface;
• a valve housing having a second connection surface opposite to said first connection surface, a pair of opposite side surfaces having recesses (2a), said second connection surface having second fluid connection openings, and a coupling selected from the group consisting of connection sockets, being insertable into said first fluid connection openings to provide a sealed connection and connection apertures corresponding to said first fluid connection openings having associated sealing means for forming sealed connection when urged together;
• a yoke (9) which grips in a longitudinal direction (8) below said base plate (1), having arms (9a, 9b) extending on said side surfaces (1a) of said base plate (1) and said valve housing (2), said arms (9a, 9b) having ends and first detent projections (10) at a distal portion thereof, corresponding to said recesses (2a) in said valve housing (2) and second detent projections (11) at a proximal portion thereof, corresponding to said detent troughs (12), said first detent projections and said second detent projections being formed on plate bodies (18) fastened to said ends (9d) of said arms (9a, 9b), said yoke (9) having a central region engaging below said base plate (1) having a width corresponding to said continuous recess (17), said arms (9a, 9b) and said central region being fabricated as a single piece having a "U"-shape;
• said yoke being movable with respect to said base plate (1) along an axis parallel to said side surfaces of said base plate between a locked position in which said first detent projections (10) engage said recesses (2a), urging said base plate (1) and said valve housing (2) together, and an unlocked position in which said second detent projections (11) engage said detent troughs (12) thereby separating said arms (9a, 9b) so that said first detent projections (10) do not engage said recesses (2a), relieving a force between said base plate (1) and said valve housing (2);
• and
• means for maintaining said locked position when at least one of said first fluid connection openings is subject to a pressure condition, and allowing said yoke to be moved to said unlocked position when said at least one of said first fluid connection openings is not subject to a pressure condition, comprising, in communication with at least one of said first connection openings (3a) of the base plate (1), a cylinder (14) having piston (15) with an outer surface (15a) displaceable therewithin toward said yoke by a pressurized fluid from said at least one of said first connection openings, so that said outer end surface (15a) rests against said yoke (9) when said detent projections (10) engage said recesses (2a) or when said second projections (11) are disengaged from said detent troughs.

A pressure fluid valve assembly, comprising,

• a base plate having a first connection surface, first fluid connection openings debouching on said first connection surface, and a pair of opposite side surfaces having detent troughs (12);
• a valve housing having a second connection surface, opposite to said first connection surface, a pair of opposite side surfaces having recesses (2a), said second connection surface having second fluid connection openings, and connection means for providing a sealed connection between said first fluid connection openings and said second fluid connection openings;
• a yoke (9) which grips in a longitudinal direction (8) below said base plate (1), having arms (9a, 9b) extending on said side surfaces (1a) of said base plate (1) and said valve housing (2), each of said arms (9a, 9b) having first detent projections (10) at a distal portion thereof, which correspond to said recesses (2a) in said valve housing (2) and second detent projections (11) at a proximal portion thereof which correspond to said detent troughs (12), said detent troughs (12) being arranged on protruding portions of said side surfaces (1c) of said base plate (1), said protruding portions having a wedge-shaped surface which tapers (13) inwardly from a portion proximal to said first connection surface toward said side surfaces distal from said first connection surface;
• and
• said yoke being movable with respect to said base plate (1) along an axis parallel to said side surfaces of said base plate between a locked position in which said first detent projections (10) engage said recesses (2a), urging said base plate (1) and said valve housing (2) together, and an unlocked position in which said second detent projections (11) engage said detent troughs (12) thereby separating said arms (9a, 9b) so that said first detent projections (10) do not engage said recesses (2a), relieving a force between said base plate (1) and said valve housing (2).