A carrying case for engineering drawings
A technology of engineering drawings and paper reels, applied in packaging, bottle/can parts, transportation and packaging, etc., can solve problems such as single function, achieve the effect of easy portability, simple structure, and avoid damage to drawings
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Embodiment 1
[0025] Embodiment 1: as figure 1 As shown, the present invention provides a carrying tube for engineering drawings, comprising a left paper reel 2, a right reel 8, a left display frame 13 and a right display frame 17; The paper shaft 2 includes a left winding core 4 and a left fixed shaft 3; the left fixed shaft 3 is installed in the left shaft casing 1, the left winding core 4 is set on the left fixed shaft 3, and the left winding core 4 is equipped with a paper jam slot 5, The left fixed shaft 3 is connected with a rotating handle 6, and the rotating handle 6 is installed on one side of the left shaft housing 1; a right paper reel 8 is installed in the right shaft housing 7, and the right reel 8 includes a right winding core 10 and a right fixed shaft 9, The right fixed shaft 9 is installed in the right shaft casing 7, the right winding core 10 is set on the right fixed shaft 9, and the right winding core 10 is provided with a paper feed slot 11; the left fixed shaft 3 and t...
Embodiment 2
[0030] Embodiment 2: as figure 2 As shown, the present invention provides a carrying tube for engineering drawings, comprising a left paper reel 2, a right reel 8, a left display frame 13 and a right display frame 17; The paper shaft 2 includes a left winding core 4 and a left fixed shaft 3; the left fixed shaft 3 is installed in the left shaft casing 1, the left winding core 4 is set on the left fixed shaft 3, and the left winding core 4 is equipped with a paper jam slot 5, The left fixed shaft 3 is connected with a rotating handle 6, and the rotating handle 6 is installed on one side of the left shaft housing 1; a right paper reel 8 is installed in the right shaft housing 7, and the right reel 8 includes a right winding core 10 and a right fixed shaft 9, The right fixed shaft 9 is installed in the right shaft casing 7, the right winding core 10 is set on the right fixed shaft 9, and the right winding core 10 is provided with a paper feed slot 11; the left fixed shaft 3 and ...
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