The invention relates to a new type of curved hook gauge for measuring elevator related dimensions

In order to realize a measuring tool that can be easily used in elevator inspection and testing, this paper integrates several types of existing plug gauge (gap gauge and vernier gauge), steel ruler and some tape measure functions, and carries out technical transformation of existing tools through parameter calculation and mechanical optimization design to achieve a tool. It not only solves the direct measurement of the data related to the comb and comb plate of the escalator, but also can be used in the escalator and elevator inspection and detection of other items.