CN2375476Y

CN2375476Y - Stencil for students

Info

Publication number: CN2375476Y
Application number: CN 99207493
Authority: CN
Inventors: 董俊道
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-04-15
Filing date: 1999-04-15
Publication date: 2000-04-26
Anticipated expiration: 2009-04-15

Abstract

The utility model relates to a stencil for students. When middle school students and students in universities of science and technology study plane geometry, solid geometry and drawing geometry, the number of figures required to drawn is many although the kind is not many; students spend on a lot of precious time. The product comprises peripheral sides 1; an arc seam region 2 with circular arc-shaped holes, a straight seam region 3 with parallel adjacent edges, and an axonometric drawing screen mesh region 4 are also arranged on the stencil. People can use the product as a stencil used when junior high school and senior high school students learn plane geometry and solid geometry to draw various triangles, parallelograms, trapezoids, ellipses, isometric drawings, cabinet drawings and schematic diagrams in subjects of physics, electrical engineering, dynamics, etc.

Description

Stencil for students

The utility model relates to a kind of drawing instrument, particularly just, the QuickDraw template of high school student and university student's drawing geometric figures.

When several middle school student and the student of college of science and engineering be in study plane geometry, solid geometry and the method for drawing, though need the pattern class of drafting few, quantity is a lot.Spent a lot of valuable time of students thus, also do not had the student to learn dedicated templates how much at present, brought many inconvenience to learning life.Professional template incompatibility students such as at present general building template, electrician's template learn how much needs, and mostly can only several several shapes be arranged very much according to its breach moulding drafting.

The purpose of this utility model is to provide a kind of Stencil for students, enables also to draw exactly fast the multiple figure that should often draw in the stage, to save valuable learning time, improves learning efficiency.

The purpose of this utility model is achieved in that

A kind of Stencil for students, its composition comprises: periphery also has the arc seam district of arc-shaped hole, vertical masonry joint district and the axonometric drawing sieve aperture district that adjacent side parallels on the template.

The said goods, its axonometric drawing sieve aperture district comprises oblique two mapping districts, equal axes axonometric drawing district and curve commonly used district.

The said goods, its periphery comprise ruler limit, protractor limit, wave limit and curved side commonly used.

Advantage of the present utility model is:

1. utilize the center of circle in arc seam district and the interior outside of arc seam can draw various circular arcs, utilizing angle of circumference on the semicircle is that point, the arc seam end points that the principle at right angle can utilize arc to sew on drawn various right angled triangles, also can select the summit to be connected with arc seam end points outside the circular arc to draw multiple obtuse triangle, also can select summit and arc to stitch end points within circular arc according to this principle to be connected the multiple obtuse triangle of drafting exceeding according to this principle.

2. utilize the permutation and combination of respectively organizing the vertical masonry joint limit in vertical masonry joint district, can draw the parallel lines of various distances, utilize scale on the limit can draw the parallelogram of plurality of specifications, trapezoidal, can also utilize the center line of scale to draw the isosceles triangle of multiple height by the summit of straight flange and differing heights.

3. equal axes axonometric drawing and oblique two mappings are most common standard axonometric drawings in the geometrical learning, utilize the sieve aperture in axonometric drawing district, can draw the projection camber line of angle and circle between the line segment, line segment of equal axes axonometric drawing and oblique two mappings easily.

4. utilize rippled edge and curved side commonly used can draw various figures commonly used and lines apace.

5. utilize the shape in the curve commonly used district in this product, can be used for drawing other figures commonly used of electrician, mechanics, building and physics thereof, chemical field.

Accompanying drawing 12 is structural representations of the present utility model.

Accompanying drawing 1-accompanying drawing 9 is application examples of subject figures such as the physics that utilizes this product to draw, mechanics.

Be further described below in conjunction with accompanying drawing:

Embodiment 1:

A kind of Stencil for students, its composition comprises: periphery 1, the arc seam that also has arc-shaped hole on the template is distinguished 2, is comprised the circular arc tape edge of radiuses such as having R1, R2, R6, R8, R16, R20, the vertical masonry joint district 3 that adjacent side parallels and circle, semicircle, oval, sagittate sealing and two groups of axonometric drawing sieve aperture districts 4.

Embodiment 2:

Embodiment 1 described Stencil for students, its axonometric drawing sieve aperture district 4 comprises oblique two mapping districts 41, equal axes axonometric drawing district 42 and curve commonly used district 43.The axonometric projection graph of square, regular pentagon, regular hexagon and the circle of 45 degree projections can be drawn by wherein oblique two mapping districts 41, the axonometric projection graph of positive four limits of 60 degree projections, positive five limits, regular hexagon and circle also can be drawn by equal axes axonometric drawing district 42, uses curve district 43 always and can draw ordinary curves such as the size ellipse of other axial length ratios, prismatic, diode.

Embodiment 3:

Embodiment 1 or 2 described Stencil for students, its periphery 1 comprises ruler limit 11, wherein meter ruler and engineer's scale can be arranged, protractor limit 12 and wave limit 13, wave can be provided with several different radiuses, and curved side 14 commonly used can have sine curve and other electrician's curves commonly used of various height.

Embodiment 4: application mode:

1. utilize arc seam picture triangular form: the two-end-point of getting camber line, angle is as required chosen point on the circular arc as thirdly, connect at 3 and obtain right angled triangle, if selecting the point of (greater than radius of curvature) beyond the camber line is acute triangle as what thirdly connect into, if select camber line with interior point (in radius of a circle) as thirdly connecting formation be obtuse triangle.

2. draw circle: utilize the arc tape edge can draw circular arc, utilize any sieve aperture on the plate to do the center of circle, another sieve aperture start point inserts and paints pen in addition, can draw the circle of multiple diameter.

3. draw parallel lines, parallelogram, trapezoidal and triangle: the parallel vertical masonry joint limit that utilizes the band scale, can hide the line taking section according to scale, draw the parallel lines of different in width differing heights, according to the length of the last lower sideline section of intercepting, can draw parallelogram and trapezoidal, the contour triangle in the end such as also can draw.According to the center line of selected scale, can draw the isosceles triangle of differing heights.

4. utilize this product can draw the figure of various applied science, for example Fig. 1 is equal pressure principle figure, Fig. 2 is the truss force diagram, Fig. 3 is an electrical schematic diagram, and Fig. 4 is electromagnetic principle figure, and Fig. 5 is the magnetic field schematic diagram, Fig. 6 decides the movable pulley work sheet, Fig. 7 is a framing elevation, and Fig. 8 is a turning moment diagram, and Fig. 9 is chemical experiment figure.

Claims

1. Stencil for students, its composition comprises: periphery is characterized in that: also have the arc seam district of arc-shaped hole, vertical masonry joint district and the axonometric drawing sieve aperture district that adjacent side parallels on the template.

2. Stencil for students according to claim 1 is characterized in that: described axonometric drawing sieve aperture district comprises oblique two mapping districts, equal axes axonometric drawing district and curve commonly used district.

3. Stencil for students according to claim 1 and 2 is characterized in that: described periphery comprises ruler limit, protractor limit, wave limit and curved side commonly used.