Organisation Internationale pour le Bambou et le Rotin

Organisation Internationale pour le Bambou et le Rotin

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Anchoring device used for bamboo anchor rod

Brevets

Pays de publication:

CN

Inventeur:

CHEN Gongming; FU Minghua; LI Zhengjun; LIU Fuan; QIN Yunwen; ZHUO Jun; WAN Longwen

Année:

2012

Date de publication:

22/08/2012

Numéro de demande:

CN201120545855U

Année de demande:

2011

Date de demande:

23/12/2011

Numéro de priorité:

CN201120545855U

Pays de priorité:

CN

Date de priorité:

23/12/2011

CIB:

E21D21/00

Membred de famille de brevets INPADOC:

CN202391440U

This utility model claims an anchoring device for bamboo roof bolt , comprising a wood plate; wood plate of the anchoring hole outer end of the upper part is provided with a hollow screw rod; the hollow screw rod is provided with the nut matched with the peripheral thread; one end face of the nut can rotate on the outer end face of the supporting plate; a nut can be inserted composed of bamboo anchor rod of the two sheets of rectangular pyramid through hole from exiting the hollow screw rod; the middle part of the hollow screw cone through hole is gradually increased from the inside to the outside; conical through-hole of two opposite inclined surfaces is provided with wood wedge, the wedge and the inclined face part to be matched with the width of the two sheets is fixedly connected with the hollow screw. Preferably hollow screw in two combined structure. The beneficial effect of the utility model has strong anchoring strength of the bamboo rod to form a hollow screw rod and a nut can be used repeatedly; the anchoring is low, and the anchor fixing efficiency is high;the structure is simple;the operation is convenient.