Assembling structure of actuator part of fluid control valve, and fluid control valve formed with the structure
AssigneeCkd Corporation
InventorsNaofumi Murata, Hiroyuki Murase, Kazuhiro Sugata, Shinji Ikenoya
Life of this patent
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Abstract
In an assembling structure of an actuator part of a chemical liquid valve, a cover is formed with a protrusion extending in a radial direction of a valve element, and a cylinder is formed with an engagement part engageable with the protrusion. A cover is placed to hold a spring in a compressed state in the cylinder and make a cap part cover an opening of the cylinder. The protrusion and the engagement part are engaged with each other to integrally connect the cylinder and the cover without separating from each other.
Claims6
A method for assembling an actuator part of a fluid control valve including (1) an actuator part having (i) a cylinder in which an urging member is placed for urging a valve element, the cylinder including an opening, and (ii) a cover for closing the opening of the cylinder;
- (2) a body;
- and (3) a mounting plate, the fluid control valve being arranged to control the flow of fluid by bringing the valve element into or out of contact with a valve seat, the method comprising:
- forming the cover with a protrusion on an outer surface of the cover to extend outwardly in a radial direction of the valve element and forming the cylinder with an engagement part on an inner surface of the cylinder to be engageable with the protrusion;
- placing the cover to hold the urging member in a compressed state in the cylinder and cover the opening of the cylinder;
- engaging the protrusion and the engagement part with each other so that the cylinder and the cover are integrally connected to each other without separation in a temporarily assembled state where the urging member is held in the compressed state;
- and
- integrally stacking and fixing the actuator part in the temporarily assembled state, the body, and the mounting plate with a bolt.
Dependencies are inferred from the claim text.