A kind of jointing device and prestressing force prefabricated component

A kind of jointing device and prestressing force prefabricated component

  • CN 208,578,028 U
  • Filed: 04/26/2018
  • Issued: 03/05/2019
  • Est. Priority Date: 04/26/2018
  • Status: Active Grant
First Claim
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1. the bottom of a kind of jointing device, including upper section nut, lower section nut, upper section nut and lower section nut is all provided with usefulIn wearing muscle hole with what rigidity expanded head clamping, upper section nut is connected with inserted link far from the threaded one end for wearing muscle hole, and inserted link, which is equipped with, to be insertedConnector sets gradually elastic element, button cylinder and stop nut far from the direction for wearing muscle hole in lower section nut, and button cylinder includes chuck,It is characterized in that, the inner cavity of the lower section nut is additionally provided with limiting stand, limiting stand make-up cylinder is carried out to the displacement for wearing muscle hole directionLimit.

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