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Anchoring device used for bamboo anchor rod

竹藤专利

发布国家:

CN

发明人:

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

年份:

2012

发布日期:

22/08/2012

申请编号:

CN201120545855U

申请年份:

2011

申请日期:

23/12/2011

优先数:

CN201120545855U

优先国家:

CN

优先权日期:

23/12/2011

国际专利类别(IPC):

E21D21/00

INPADOC 成员:

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.