Recyclable expansion anchor rod and construction method thereof
A technology of anchor rod and enlarged head, which is applied in the direction of foundation structure engineering, building, sheet pile wall, etc.
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[0038] Please refer to the attached figure 1 to attach Figure 9 As shown, the present invention is a recoverable head-expanding anchor rod, which is assembled from several parts such as an anchor head 1, a rod body 2, a protection bag 3, and a rod body protection tube 4.
[0039] Wherein, the anchor head 1 is composed of a screw rod 11 , a herringbone expanding head 12 , a spiral steel wire 13 , a steel wire protection tube 14 and an anchor piece 15 . The herringbone expansion head 12 is screwed on the screw rod 11; the spiral steel wire 13 passes through the herringbone expansion head 12 and extends into the steel wire protection tube 14; the steel wire protection tube 14 is sleeved on the screw rod 11; The anchor 15 is installed on one end of the rod body 2 .
[0040] Further, a pulley 111 is provided at the top of the screw 11 , and the inner wall at the end of the protective bag 3 is connected to the outer wall of the pulley 111 .
[0041]Described herringbone expandi...
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