Drawing sheet placing cylinder with engineering drawing sheet protection

Abstract

The invention discloses a drawing sheet placing cylinder with engineering drawing sheet protection. The drawing sheet placing cylinder comprises a cylinder body and a rotating shaft. The rotating shaft is arranged at the cylinder body in a sleeving mode. The cylinder body is in a cylindrical shape. Two ends of the cylinder body are sealed. Two placing blocks are arranged on the lateral face of thecylinder body. The two placing blocks are arranged in a parallel mode. A placing groove is formed between the placing blocks. A clamping block is matched with the placing blocks. The clamping block is formed by two L-shaped fixing blocks being connected by a first hinge. A gap is formed between the fixing blocks. An inner shaft is arranged in a rotating shaft. The inner shaft is arranged in the rotating shaft in a sleeving mode. One end of the inner shaft penetrates through the cylinder body and is arranged outside the cylinder body. Eight arc blocks are arranged outside the rotating shaft. Elastic blocks are arranged on two sides of the arc blocks. The elastic blocks are hinged to the edges of the arc blocks by second hinges. The size of the elastic blocks is matched with that of the arcblocks. A clamping groove is formed between every two elastic blocks. During application, the drawing sheet is positioned in the clamping grooves through the placing groove in a stretching mode, theelastic blocks clamp, the rotating shaft rotate and clamp, and finally the clamping blocks seal.

Description

technical field [0001] The invention relates to a drawing storage device, in particular to a drawing placement cylinder for protecting engineering drawings. Background technique [0002] In building construction and production, construction and production according to drawings is a must for every project. Drawings are fragile items. The construction site environment or production workshop environment is chaotic. We need to protect and store construction drawings, but the existing drawings are stored , are generally placed on the table after being folded, and the drawings are easy to break after repeated folding, which makes the life of the engineering drawings decrease with the increase of the number of folds, which is not conducive to the use of architectural drawings. Contents of the invention [0003] The technical problem to be solved by the present invention is that the engineering drawings are large, and folding will affect the quality of the paper and affect the pic...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that engineering drawings are relatively large, and folding will affect the quality of the paper and affect the effect of the drawing, and it is not easy to carry without folding. A blueprint placement cylinder with protection for engineering drawings is provided to solve the above problems

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