Glue overflowing and seam repairing type bolt capable of preventing bolt hole from cracking

Abstract

The invention discloses a glue overflowing and seam repairing type bolt capable of preventing a bolt hole from cracking, and belongs to the technical field of fastener bolts. Material attaching bag columns are plugged on the side wall portions of the periphery of a rod body, the rod body is installed between two parts, the other end of the rod body is sleeved with a nut, the magnetic attraction effect of the nut on a magnetic column is utilized, and the magnetic column moves towards one end of the nut along a hollow cavity; in the moving process, a plurality of puncture bodies are pushed outwards to puncture a liquid storage bag through the magnetic repulsive action of magnetic columns on the puncture bodies, glue liquid overflows and fills the gap between the rod body and a threaded hole, after mechanical connection is achieved, sealing bonding between the rod body and the threaded hole is further achieved, and the possibility of cracking of the threaded hole in the follow-up process is reduced. A plurality of repairing bodies are arranged at the end of the rod body, when a threaded hole end opening cracks due to external factors in the later period, a film layer is torn off along with a crack, a self-heating pad in a material storage sleeve is heated after making contact with crack air, glue is heated and overflows to repair the crack, and continuous cracking is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of fastener bolts, in particular to a glue overflow repairing type bolt that prevents bolt holes from cracking. Background technique [0002] A bolt is a cylindrical threaded mechanical fastener with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which needs to be matched with a nut to fasten two parts with bolt holes. This form of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. [0003] The bolt connection is a mechanically rigid connection. Under long-term use, the bolt hole is prone to cracking under the action of shear force, which will cause the bolt connection to loosen, and the nut will also easily fall off due to looseness, resulting in the failure of the bolt connection, thus It also makes the crack bigger and bigger. [0004] For this r...

AI Technical Summary

Problems solved by technology

[0003] The bolt connection is a mechanically rigid connection. Under long-term use, the bolt hole is prone to cracking under the action of shear force, which will cause the bolt connection to loosen, and the nut will also easily fall off due to looseness, resulting in the failure of the bolt connection, thus It also makes the crack bigger and bigger

Images