A kind of bolt

A kind of bolt

  • CN 207,145,408 U
  • Filed: 06/25/2017
  • Issued: 03/27/2018
  • Est. Priority Date: 06/25/2017
  • Status: Active Grant
First Claim
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1. a kind of bolt, include bolt head and be provided with external screw thread with the integrally formed screw rod of bolt head, the outer surface of screw rod, itsIt is characterised by:

  • Described bolt head, which is provided with, to be included to the oiling device of screw rod oiling, the oiling device located at bolt headOn oiling chamber, bolt head is provided with pod apertures towards the end face of screw rod, and the other end is provided with the oil filler point turned on oiling chamber,Check valve assembly is provided with described oil filler point, the sealing block that pod apertures can be blocked, described oiling chamber are provided with pod aperturesPush rod interior to be connected provided with one end with check valve assembly, that the other end can turn on sealing block.

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