Laser sweeping measurement instrument for inner house outline

The utility model is a laser sweeping measurement instrument for an inner house outline. The sweeping measurement instrument that is connected with a computer by a communication line or a bluetooth wireless way comprises an upper portion, a middle portion, and a lower portion, wherein the upper portion is a ranging portion, the middle portion is rotating portion, and the lower portion is a support portion. The rotating portion is arranged inside the support portion and is fixedly connected with the ranging portion, so that the ranging portion rotates around the support portion. The laser sweeping measurement instrument is a laser ranger finder with the communication function. Precise surveying and mapping of a kitchen plane structure with any shape can be completed; and especially, a complex corner caused by various pipelines can be surveyed and mapped precisely. On the basis of stepping motor driving, a precise scanning angle can be obtained; an accurate distance can be obtained by using a laser ranging module group; and an outline scanning graph of the inner boundary of the measured building can be obtained by using a polar coordinate principle. Moreover, the surveying and mapping data are submitted directly in an AutoCAD drawing file mode. For subsequent numerically-controlled cutting machine tool of a platen, the technical seamless connection can be provided by using the laser sweeping measurement instrument.