Retractable wall post template is hung down straightness and is detected instrument

The utility model discloses a retractable wall post template is hung down straightness and is detected instrument, including the installation pole, one side fixed mounting of installation pole has theconnecting rod, one side of connecting rod is equipped with the scale, the top face down bonding of installation pole has connect first pole, first pole is hollow structure, and slidable mounting hasa second pole in the first pole, the wire casing has been offered on the second pole, be equipped with the silk thread in the wire casing, outside the silk thread extends to the wire casing, and thebottom fixedly connected with plumb bob of silk thread, the plumb bob is located the below of connecting rod, slide hole has all been seted up to the both sides of first pole. The utility model discloses simple structure, convenient to use compares the traditional approach, and this instrument only needs the one man operation, and this instrument only need stand in floor operation, need not climbto wall post template top or