Multi-stage sectioned grouting-free self-anchoring ratchet type anchor rod

The utility model discloses a multi-stage sectioned grouting-free self-anchoring ratchet type anchor rod, which comprises an anchor rod body, wherein a sleeve is sleeved on the anchor rod body; the upper end of the sleeve is provided with a conical head; two to ten annular tables are arranged on the anchor rod body; a group of four arc anchor ratchets which are symmetrically distributed is fixedly arranged on the anchor rod body below each annular table through a hoop; the ratchet is provided with an inwards concave limiting seat; the hoop is arranged in the limiting seat of the ratchet; the inner side of the sleeve is provided with four bosses which are symmetrically distributed; a spring which is propped against the anchor ratchets is arranged on the boss; and a conical annular gasket is arranged between the anchor ratchets and the spring. The anchor rod is unique in structural design, high in anchoring strength, firm and reliable in installation and easy and rapid in construction process, the grouting cons