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US 2023/0175251 A1Published application
Strong anchor
OwnerNam Hyun JOinventor
Life of this patent
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Abstract
According to the present invention, a body of an anchor bolt of a certain standard is inserted into a hole drilled in the ceiling, floor, or wall of concrete, and a wedge bolt is inserted into a body screw, then by rotating it in a tightening direction, a wedge portion of the wedge bolt is squashed into a spread portion of the anchor body with force of the screw so that it is firmly fixed, and the inserted wedge bolt may be rotated so that it may be loosened and extracted, so that it is possible to easily carry out demolishing work.
Claims4
A strong anchor comprising:
- a tubular anchor body;
- a body thread portion formed on an inner circumferential surface of the anchor body;
- a spread portion in which a plurality of incision grooves are formed in a lower portion of the anchor body;
- a protruding portion formed with a plurality of protrusions having a triangular structure in a shape of a screw thread on an outer circumferential surface of the spread portion;
- an insertion fixing portion forming a jaw on an upper portion of the anchor body and a wedge bolt inserted into the body thread portion,
- wherein the wedge bolt includes
- a wedge bolt portion that is rotated in a thread direction to correspond to the body thread portion and coupled thereto and a conical wedge portion integrally connected to a lower portion of the wedge bolt portion, and
- when the wedge bolt is rotated in a locking direction, as the edge bolt is squashed into the lower portion of the body thread portion so that spread portion is widened, the protruding portion formed on the outer circumferential surface of the spread portion is widened and fixed to an object to be fixed.
5 more elements
Dependencies are inferred from the claim text.