US 2025/0027528 A1 · BOLT FASTENING STRUCTURE USING HOLE GUARD

Abstract

Disclosed is a bolt fastening structure using a hole guard that can be mounted on holes of various sizes. Since the bolt is fastened to the hole guard already mounted on a lower structure, it is possible to fasten the bolt to a steel pad having large holes or elongated holes or a grating plate where the holes have been damaged and the sizes of the holes are inconsistent. Moreover, by forming a locking groove, into which a lower horizontal part of the bolt is inserted, or a protruding groove and a protrusion for rotation and fixation of the lower horizontal part on the lower surface of the hole guard, both the fixed and pivoting types of the lower horizontal part can be secured upright to the hole guard.

Claims20

Dependent claims

A bolt fastening structure using a hole guard comprising:

a lower structure which is located below the equipment of an industrial facility and has holes for fastening;
a hole guard which is inserted and secured into the hole of the lower structure;
a T-bolt comprising an upper vertical part which has threads formed thereon and a lower horizontal part which is formed to have a predetermined length on both sides around the upper vertical part, the T-bolt being inserted and fastened into the hole guard;
and
a ring-shaped anti-falling washer which is fastened to the T-bolt and supported on the hole guard to prevent the T-bolt from falling below the lower structure.

2 more elements

Dependencies are inferred from the claim text.

Bolt fastening structure using hole guard

Life of this patent

Bolt fastening structure using hole guard

Life of this patent

Abstract

Claims20