| 摘要 |
According to the present invention, a cap device for protecting a bolt (11) and a nut (12) mounted on an object (10) to be mounted comprises: a ring member (20) which encloses an outer surface of at least one among the bolt (11) and the nut (12), is meshed with a lower surface, and has a plurality of first guide grooves (31) and second guide grooves (32) disposed on an outer surface thereof and connected in an L-shape; and a cap member (40) which encloses the outer surface of the ring member (20), is tightly attached to the object (10) to be mounted, and has stopping protrusions (43) meshed with the first guide grooves (31) and the second guide grooves (32). Accordingly, corrosion is prevented by a sealing capacity even if exposed to the outside to increase durability, adjust the sealing capacity, and facilitate disassembly when needed to expand application fields. |
