Special ruler for drawing hatching lines capable of automatic isometric shift and using method thereof

Abstract

A special hatching drawing ruler with automatic equidistant shifting capacity comprises a ruler board, a pressing board, a stop block, rubber wheels, ratchet wheels, a wheel shaft and spring rings, wherein an inclined edge is arranged in the front of the ruler board, a support block is arranged in the middle, positioning holes are formed in two sides, and a long shaft sleeve is arranged on the back; a square hole is formed in the middle of the pressing board, a short shaft sleeve is arranged on the back, and pawls are arranged on two sides; and the ruler board, the pressing board, the rubber wheels and the ratchet wheels are connected in series and combined into a whole by the wheel shaft. The special hatching drawing ruler has the advantages as follows: the special hatching drawing ruler is simple and convenient to use compared with the traditional drawing method and can be used without matching of other rulers; a user can draw parallel equidistant lines quickly and conveniently with the ruler and even can draw parallel equidistant lines on a vertical plane, so that the manual hatching drawing quality and drawing efficiency are improved greatly.

Description

technical field [0001] The invention relates to a drawing tool, in particular to a special ruler capable of automatic equidistant displacement for drawing a profile line and a method for using the same. Background technique [0002] At present, it is often necessary to draw section lines in mechanical drawing and civil engineering drawing, but it is difficult to make parallel and equidistant section lines with existing hand drawing tools. "A special triangular board for drawing section lines" (authorized publication number CN203623224U) invented by Li Shujuan of Xi'an University of Technology and others can draw 30-degree and 60-degree section lines at the same time. The board needs to be equipped with another ruler for assistance, but drawing parallel and Equidistant profile lines are still relatively difficult and inefficient; the "Parallel Line Drawing Board" (authorized public number CN2088044U) designed by Pan Jianqiang, Songjiaqiao Tiantian Geophysical Survey Team, Zhu...

AI Technical Summary

Problems solved by technology

[0002] At present, it is often necessary to draw section lines in mechanical drawing and civil engineering drawing, but it is difficult to make parallel and equidistant section lines with existing hand drawing tools

"A special triangular plate for drawing section lines" (authorized publication number CN203623224U) invented by Li Shujuan of Xi'an University of Technology and others can draw 30-degree and 60-degree section lines at the same time. This board needs to be equipped with another ruler for assistance, but drawing parallel and Equidistant profile lines are still relatively difficult and inefficient; the "Parallel Line Drawing Board" (authorized public number CN2088044U) designed by Pan Jianqiang, Songjiaqiao Tiantian Geophysical Survey Team, Zhuzhou City, Hunan Province, can only draw parallel lines with a small surface. Lines, and the distance between lines is not adjustable, and the adaptability is not strong; "A Multifunctional Section Line Drawing Tool" designed by Lin Miaoyan (authorized publication number CN202147515U) solves the problem of conveniently adjusting the angle of section lines, but in When drawing the section line, you must rely on another ruler, which is not much different from the traditional section line drawing method and efficiency; the "section line drawing ruler board" (authorized publication number CN2121345U) designed by Xi Boli is only suitable for drawing For a graph with a small area, although the distance between lines is optional, due to structural reasons, it is impossible to draw section lines with small intervals without the assistance of other rulers, and it is also difficult to draw section lines with large areas and large intervals. hatching

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