A bag-type grouting anchor rod

Abstract

This utility model discloses a bag-type grouting anchor bolt, relating to the field of grouting anchor bolt technology. It includes an anchor bolt body, with a threaded rod fixedly connected to the upper end. A grouting bag is fitted onto the outer side of the anchor bolt body, and multiple grouting holes are opened on the outer side of the anchor bolt body. A drill bit is fixedly connected to the lower end of the anchor bolt body. A protective component is provided on the outer side of the anchor bolt body, with a threaded seat at the upper end of the protective component. The threaded seat is threadedly connected to the outer side of the threaded rod. This utility model, by fitting a first protective sleeve, an upper grooving cutter, a lower grooving cutter, and a second protective sleeve onto the outer side of the anchor bolt body, ensures that during drilling, the first protective sleeve, the upper grooving cutter, the lower grooving cutter, and the second protective sleeve collectively prevent damage to the grouting bag. The spiral discharge blades on the outer sides of the first and second protective sleeves can discharge the rock and soil debris generated during drilling.

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