Multipurpose surveying and mapping pen
A main pen and nib technology, applied in the field of multi-purpose surveying and mapping pens, can solve the problems of complicated operations and inconvenient carrying in the process of surveying and mapping, and achieve the effects of increasing versatility and functionality, being easy to carry, and improving drawing quality
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[0013] The specific structure and implementation mode of the present invention will be further described below in conjunction with the accompanying drawings.
[0014] The structure diagram of the present invention is as figure 1 shown. The multi-purpose surveying pen consists of the main pen nib (1), the main pen lower shell (2), the main pen upper shell (7), the main pen and the auxiliary pen nib (4), the auxiliary pen lower shell (5) and the auxiliary pen upper shell (8) Deputy pen, and ruler (6) and scale cover (3) constitute. The secondary pen nib (4) is used for painting, and the main pen nib (1) is used as a supporting point for drawing and measuring straight lines, circles, arcs, fan shapes and angles of specific angles. The main pen lower shell (2) has a cylinder with external threads, and is connected with the main pen upper shell (7) with a cylindrical groove with internal threads; the auxiliary pen lower shell (5) has a cylinder with external threads, and the auxi...
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