Special tool for measuring distance between metal cover of forklift and electrified part of storage battery

A special tool for measuring the distance between a metal cover of a forklift and an electrified part of a storage battery comprises a shell, a graduated scale, a limiting device and a guide cylinder device, the shell is hollow, the guide cylinder device is installed at the bottom in the shell, a first through hole is formed in the upper portion of the shell, the graduated scale penetrates through the first through hole and is in telescopic connection with the guide cylinder device, and one end of the limiting device is installed on the side face of the shell. And one end, extending into the shell, of the connecting rod can abut against the graduated scale so as to limit the graduated scale. The graduated scale penetrates through the first through hole in the shell to be telescopically connected with the guide cylinder device, when the forklift battery cover plate covers the shell, the cover plate presses the graduated scale downwards, after the graduated scale shrinks downwards, the limiting device limits th