Measuring device for vertical metal can external measurement surrounding ruler method

The utility model belongs to the technical field of measuring devices, and particularly relates to a measuring device for a vertical metal can external measuring tape method, which comprises a support, a tension meter and a tape clamping device, the tape clamping device is connected with the support in a sliding mode, a shell of the tension meter is connected with the support through an adjusting assembly, and a measuring end of the tension meter is connected with the tape clamping device. The steel tape is fixed through the tape clamping device, and the tension meter and the tape clamping device are pulled to move through the adjusting assembly; a magnetic gauge stand is arranged on the support, and the magnetic gauge stand is fixedly connected or hinged to the support. The ruler clamping device and the tension meter are mounted on the bracket to form a set of device; the whole device can be fixed to the tank wall through the magnetic gauge stand, and operation can be completed by one person instead of at le