Multifunctional plotter
A drawing device and multi-functional technology, which is applied in the field of teaching equipment, can solve problems such as inconvenience for students, and achieve the effect of convenient use and storage
Inactive Publication Date: 2008-11-12
刘倚天
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- Application Information
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Problems solved by technology
However, it is very inconvenient for students to carry and store these four teaching aids at the same time.
Method used
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[0008] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0009] In the figure, the first rod 1 and the second rod 2 are marked with length scales. The first rod 1 is in the shape of a ruler, and has a long slot 5 in its longitudinal direction. The lead core clip 6. One end of the second rod member 2 is a protractor 3, and the other part is in the shape of a ruler. The center of the arc at one end of the first rod 1 is hinged to the center of the protractor 3 on the second rod 2 through a hollow shaft 4 .
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The invention discloses a multifunctional drawing device which relates to teaching aids and has the functions of a ruler, a set square, a protractor and a bow compass, with convenient use. The multifunctional drawing device mainly consists of two rod pieces; the first rod piece is in ruler shape and the longitudinal direction of the first rod piece is provided with a long slot; a lead core clamp which can slide along the long slot is arranged in the long slot; one end of the second rod piece is the protractor and the other parts are in the ruler shape; the center of an arc at one end of the first rod piece is hinged with the circle center of the protractor on the second rod piece by a hollow shaft. The invention has simple structure, is convenient and practical and can be broadly applied to teaching activities.
Description
Technical field [0001] The invention relates to a teaching tool, in particular to a multifunctional drawing device. Background technique [0002] These four kinds of single-function drawing instruments of existing settable, ruler, protractor and compasses are necessary teaching aids when students attend classes. But, carry and deposit these four kinds of teaching aids simultaneously, the student is very inconvenient. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the present invention provides a multifunctional drawing device, which has the functions of a set square, a ruler, a protractor and a compass at the same time, and is very convenient to use. [0004] The technical scheme adopted by the present invention to solve the technical problem is: the present invention comprises two rods, and scales are marked on the two rods. The first rod is in the shape of a ruler, and has a long groove longitudinally, and a lead core clip th...
Claims
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Login to View More IPC IPC(8): B43L13/00B43L7/10B43L9/02G01B3/04G01B3/06
Inventor 刘倚天
Owner 刘倚天
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