Drilling cutting collecting device and drilling machine assembly

The drilling machine assembly comprises a drill rod and a collecting device, the collecting device comprises a collecting part and a containing cavity, the inlet end of the collecting part abuts against the outer wall of a drill hole formed by the drill rod, the outlet end of the collecting part communicates with the containing cavity, and the outer diameter of the collecting part is gradually increased in the direction from the inlet end to the outlet end; a penetrating hole is formed in the end, away from the collecting part, of the containing cavity. The drill rod sequentially penetrates through the containing cavity and the collecting part from the penetrating hole and penetrates out of the inlet end of the collecting part, and a gap is reserved between the drill rod and the inlet end of the collecting part. By the adoption of the drilling cutting collecting device and the drilling machine assembly, the drilling cutting can be collected more accurately, the workload of constructors is reduced, meanwhile,