Driller of pneumatic hammer

Abstract

The present invention is relative to a driller of pneumatic hammer, the driller comprises: a main drilling body, a plurality of auxiliary drilling bodies, latches, and hole buckles. The main drilling body includes a main drilling portion, a plurality of assembling spaces and tunnels. Each of the auxiliary drilling bodies has an anti-interference tunnel and is placed in one of the assembling spaces. Each of the latches is inserted into the tunnel and the anti-interfere tunnel to prevent the auxiliary drilling body from separating from the main drilling body. Each of the hole buckles is assembled in the tunnel to be adjacent to one end of the latch. When the driller drills the foundation, the main drilling body is rotated to generate a centrifugal force. The latches are moved by centrifugal force in the tunnel, so that each of the latches is blocked by one of the hole buckles without leaving the tunnel. Therefore, the auxiliary drilling bodies can’t be separated from the main drilling body.

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