Strike assembly type fixing device for shipyard

A strike assembly type fixing device for a shipyard, comprising:

• a fixing plate (10) having a fixing recess (11) formed thereon, the fixing recess having a hole structure along a thickness direction of the fixing plate;
• a fixture (20) having a flat top surface and an upper end (21) having threads formed on a side surface of the fixture to be coupled with a separate fastening element (50), a lower end (22) fittingly fixed to the fixing recess of the fixing plate (10), and a protruding flange (23) formed inclinedly downwardly along an outer circumferential surface of a connection portion between the upper end (21) and the lower end (22),
• wherein the upper end (21), the lower end (22), and the protruding flange (23) are formed integrally with each other, the upper end having a circumference greater than a circumference of the lower end, the lower end having a cylindrical body with a length sufficient to allow for a bottom surface of the lower end to contact with a bottom of the fixing recess;
• and
• a packing ring (30) fitted around the lower end (22) of the fixture (20) so as to be brought into close contact with an underside of the protruding flange (23), whereby when the fixture (20) is fixed to the fixing plate (10), the packing ring (30) is brought into close contact with the underside of the protruding flange (23) and the surface of a peripheral portion of the fixing recess (11) while pressing the underside of the protruding flange (23) and the peripheral portion surface of the fixing recess (11) so as to prevent liquid, gas, or foreign substances from being introduced into a space defined between the fixture (20) and the fixing plate (10), and the fixture (20) is securely fixed to the fixing plate (10) while the protruding flange (23) formed integrally with the upper end (21) and the lower end (22) presses the peripheral portion surface of the fixing recess (11) so as to increase a fixing force;
• wherein the protruding flange (23) is formed in a concentric annular ring shape such that the top surface and the bottom surface thereof are formed curvedly and the protruding flange has an upwardly convex curved surface;
• wherein the packing ring (30) is formed in an annular ring shape having a preset thickness (d) in such a manner as to be shaped to be protruded radially outwardly from an outer circumferential edge (232) of the protruding flange (23) when the fixture (20) is fixed to the fixing plate (10);
• and
• wherein the lower end has an external thread in the form of a helix on the cylindrical body and the fixing recess has an internal thread in the form of a helix on a sidewall of the recess for mating with the external thread such that a rotation of the fixture allows a linear movement of the fixture along a depth direction of the fixing recess.