CN2291313Y - Multi-functional drawing-board - Google Patents

Abstract

The utility model relates to a multi-functional drawing-board which solves the problems that various figures need various drawing tools. The utility model is characterized in that an inner disc of the drawing-board arranged in a groove of an outer disc can be rotated, a straight groove and a hole are arranged on the inner disc, and a hollow sliding sleeve is also arranged in the straight groove. Thus the drawing-board can be used for drawing straight lines, triangles, circles, and simultaneously can also be used as a protractor and a scale. The purpose of multi-function of one drawing-board can be obtained, and the multi-functional drawing-board is suitable for use by the extensive students, teachers and drawing personnel.

Description

Multifunctional drawing board

The utility model relates to a kind of drawing instrument, belongs to the multifunctional drawing board that can draw multiple figure.

At present, its purposes of the employed drawing instrument of drawing personnel is more single, as: compasses can only be drawn circle, and ruler can only the setting-out section, and set square can only be drawn the triangle of fixed angle; Draw bowlder again if both drawn triangle, will use many instruments; This makes troubles to the illustrator, up to the present, yet there are no and a kind ofly not only can draw triangle but also can draw round drawing instrument.

The purpose of this utility model is exactly at above-mentioned the deficiencies in the prior art and a kind of multifunctional drawing board of drawing multiple figure of body confession.

The purpose of this utility model reaches by the following technical programs: this multifunctional drawing board is made up of screw and nut, it is characterized in that: the outer dish and the inner disc that block and can rotate mutually with screw cooperate with groove, have the straight trough of band millimeter scale on the diameter of inner disc, the hollow sliding sleeve that can live along its slip and available fixed by nut is housed in the straight trough, on diameter, be provided with centre-to-centre spacing on the inner disc and be a round of five millimeters perpendicular to straight trough, also be provided with spacing on the inner disc and be five millimeters coordinate concealed wire, interior, the contact position of outer dish is equipped with the circumference graduation mark of spacing for dividing, and per ten scales, one numerical value.

Above-mentioned multifunctional drawing board, its outer dish four limits are equipped with the engineer's scale of band graduation mark, and its ratio is respectively: 1: 100,1: 200,1: 300 and 1: 400.

The utility model has following advantage than prior art: because its inner disc is provided with straight trough, thereby can draw straight line; Also can be by the rotation inner disc to arbitrarily angled, arbitrary triangle draws; Also, penholder is gone into wherein to choose size, can draw the circle of any size owing in the straight trough sliding sleeve is housed; In addition, this drawing board can be made protractor and engineer's scale usefulness, and by to positive coordinate concealed wire translation drawing board, it is also very convenient to draw parallel lines.

Accompanying drawing 1 is a front view of the present utility model;

Accompanying drawing 2 is vertical views of the present utility model.

The utility model is described in further detail below in conjunction with accompanying drawing: shown by Fig. 1 and Fig. 2, this drawing board is made up of screw 2 and nut 4, it is characterized in that: the core of drawing board is inner disc 3 and outer dish 1, inner disc 3 and outer dish 1 are made by lucite, the two cooperates with circular groove, thereby inner disc 3 and outer dish 1 can rotate mutually; Inner disc 3 embeds in the outer dish 1 and is blocked by screw 2, screw 2 can not compress inner disc 3, on the diameter of inner disc 3, have the straight trough 6 of band millimeter scale, being equipped with in the straight trough 6 can be along its slip and available nut 4 securing hollow sliding sleeve 5, inner disc 3 is provided with centre-to-centre spacing on the diameter perpendicular to straight trough 6 be a round 7 of five millimeters, also be provided with spacing on the inner disc 3 and be five millimeters coordinate concealed wire, be equipped with in the contact position of inner disc 3 and outer dish 1 spacing for minute the circumference graduation mark, and per ten scales, one numerical value; Four limits of outer dish 1 are equipped with the engineer's scale of band graduation mark, and its ratio is respectively: 1: 100,1: 200,1: 300 and 1: 400.

During use, draw straight line and penholder can be gone in the mesopore of hollow sliding sleeve 5, move pen and drive a sliding sleeve 5 straight line that can draw; Draw bowlder, can pin outer dish 1 rotation inner disc 3 and can draw,, can earlier hollow sliding sleeve 5 amount standards be fixed, again penholder is gone into the mesopore of sliding sleeve 5, rotate inner disc 3 and can draw as the circle of divider calipers sizing with in the penholder hand-hole 7; When drawing triangle, draw a line earlier, behind the intact inner disc 3 of the good angular turn of the amount for the treatment of, draw a line again, two lines are linked to each other promptly goes out triangle at last; In addition, this drawing board also can be done the use of protractor and engineer's scale.

Claims (2)

1, multifunctional drawing board, form by screw (2) and nut (4), it is characterized in that: the outer dish (1) and the inner disc (3) that block and can rotate mutually with screw (2) cooperate with groove, have the straight trough (6) of band millimeter scale on the diameter of inner disc (3), being equipped with in the straight trough (6) can be along its slip and the securing hollow sliding sleeve of available nut (4) (5), inner disc (3) is gone up and be provided with centre-to-centre spacing on the diameter perpendicular to straight trough (6) is a round (7) of five millimeters, also be provided with spacing on the inner disc (3) and be five millimeters coordinate concealed wire, interior, outer dish (3,1) contact position is equipped with the circumference graduation mark of spacing for dividing, and per ten scales, one numerical value.

2, multifunctional drawing board according to claim 1 is characterized in that: outer dish (1) four limit is equipped with the engineer's scale of band graduation mark, and its ratio is respectively: 1: 100,1: 200,1: 300 and 1: 400.