A device for detecting deviations in the dimensions of door and window openings

Abstract

This utility model discloses a device for detecting dimensional deviations in door and window openings, comprising a device body consisting of a telescopic rod, an air-cushioning system, and a dimensional deviation detection system. The telescopic rod is vertically arranged, with its bottom contacting the ground or a reference surface via the air-cushioning system, and the dimensional deviation detection system is supported at its top. The air-cushioning system is fixedly connected to the bottom of the telescopic rod and is used to adjust the vertical height of the telescopic rod. This utility model organically integrates telescopic adjustment, pneumatic lifting, and laser detection functions. With the help of a three-stage telescopic rod and an air-cushioning system, it can quickly adapt to opening environments of different heights. Combined with a spirit level, it can achieve precise positioning, reducing manual adjustment time. The dimensional deviation detection system, through a combination of a two-way infrared laser rangefinder and a 45° reflector, can simultaneously measure the lateral and longitudinal dimensions of the opening, avoiding the accumulation of errors caused by multiple measurements.

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