Scribing and distance measuring device

Abstract

The invention discloses a scribing and distance measuring device. The scribing and distance measuring device comprises a scribing and distance measuring device body, a straight ruler, an angle disc, arotating ruler, a measuring tape assembly, a sliding scribing assembly and a chalk clamping assembly, wherein the straight ruler is arranged on one side of the scribing and distance measuring devicebody, the angle disc is fixedly welded to the outer wall of one end of the straight ruler, the rotating ruler is arranged on one side of the angle disc, a first rotating shaft is fixedly welded to theouter wall of one end of the rotating ruler, a rotating shaft hole is formed in the portion, corresponding to the first rotating shaft, of the center of the outer wall of one side of the angle disc,and the first rotating shaft penetrates through the rotating shaft hole. Various combinations of lengths, angles and the like can be carried out, single-hand operation can be carried out more conveniently and quickly when the straight ruler and the angle disc are matched for measuring, and the rotating ruler is rotated to be overlapped with the straight ruler, so that folding of the device is achieved, and storage and carrying are convenient to achieve; and when some long objects are measured, measurement can be carried out through a measuring tape, and the problem that the measurement error is large due to multi-section measurement of the straight ruler is solved.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping and teaching equipment, in particular to a marking and distance measuring device. Background technique [0002] With the development and progress of society, people often need to use various rulers to draw lines or measure distances in the process of engineering construction surveying and teaching, in order to obtain graphics and position information that reflect the current situation of the ground, and to conduct in a more intuitive way. teaching. [0003] The ruler is an indispensable tool in the process of surveying, mapping and teaching. At present, in the process of surveying, mapping and teaching, a ruler and an angle ruler are often used together to measure distances and draw lines, but 1. When using a ruler and an angle ruler together It is more troublesome and not conducive to one-handed operation, and it is also inconvenient to carry; 2. The length of the ruler is limited....

AI Technical Summary

Problems solved by technology

[0003] The ruler is an indispensable tool in the process of surveying, mapping and teaching. At present, in the process of surveying, mapping and teaching, a ruler and an angle ruler are often used together to measure distances and draw lines, but 1. When using a ruler and an angle ruler together It is more troublesome and not conducive to one-handed operation, and it is also inconvenient to carry; 2. The length of the ruler is limited. When measuring some long objects, multi-segment measurement is required, and the error is large; 3. There is no auxiliary drawing of circles and arcs. Ability, cannot determine the radius accurately and concisely when drawing circles and arcs, 4. There is no chalk clamping component, and it is not possible to perform auxiliary marking by clamping chalk, rotating or moving the ruler

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