Light path adjusting mechanism of laser water depth measuring device

A light path adjusting mechanism of a laser water depth measuring device comprises an outer cylinder, a mounting ring is arranged in the outer cylinder, and the outer cylinder and the mounting ring are in close fit; a positioning pin is arranged on the mounting ring, an axial first through hole matched with the positioning pin is formed in the outer cylinder, and the positioning pin can axially move in the first through hole; an accommodating part is arranged in the mounting ring and is used for accommodating a to-be-mounted component; a fixing hole is formed in the mounting ring so as to fasten a component to be mounted; the outer cylinder is further provided with an axial second through hole, and a fastening part penetrates through the second through hole to fix the mounting ring. 一种激光测水深装置的光路调节机构，包括外筒，其内设有安装圈，二者之间紧密配合；安装圈上设有定位销，外筒上设有与定位销配合的轴向的第一通孔，定位销能够在第一通孔中轴向移动；安装圈内设有容纳部，以容纳待安装部件；安装圈上设有固定孔，以紧固待安装部件；所述外筒上还设有轴向的第二通孔，紧固部件穿过第二通孔能够将安装圈固定。