CN2165004Y

CN2165004Y - Multifunctional drawing board

Info

Publication number: CN2165004Y
Application number: CN 93227342
Authority: CN
Inventors: 杨子叶
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-18
Filing date: 1993-02-18
Publication date: 1994-05-18
Anticipated expiration: 2003-02-18

Abstract

The utility model relates to a multifunctional drawing board, which is characterized in that a straight rule lies across a drawing board, one end of the straight rule is in sliding connection with the left end of the drawing board, one end of the drawing board is provided with a slide way, the lower face of the straight rule is fixed with a slide block which is down in the slide way, and the straight rule can travel up and down parallelly along the slide way; a semi-circle rule is sheathed on the straight rule and can make crosswise slide on the straight rule, an acute angle of a right-angle set square is arranged on a central axis of the semi-circle rule, the right-angle set square can be rotated around the central axis, and the other acute angle is provided with a pen hole for drawing a circular arc. The utility model has the advantages of compact structure, easy use and multiple functions.

Description

Multifunctional drawing board

The utility model belongs to a kind of drawing board.

Present drawing board mainly contains following several: 1, ruler: be used for drawing straight line; 2, protractor: be used for drawing angle line; 3, T-square: be used for drawing parallel lines and vertical line; 4, set square: be used for drawing straight line and the standardized corner angle staff of deciding angle (30 °, 45 ° and 60 °).Obvious above-mentioned four kinds of drawing board function singlenesses.

The purpose of this utility model provides a kind of with above-mentioned functions collection multifunctional drawing board all over the body.

The purpose of this utility model is achieved in that ruler is horizontal on drawing board, and an end of ruler and the left end of drawing board are slidingly connected: an end of drawing board has chute, fixing slide block below the ruler, down in chute, slide block has centre bore, and this bottom, hole flare (tapering is promptly arranged) is in this horn mouth, a nut is arranged, its outside also has tapering, is lock dog, and respectively there is a screw at the two ends above the slide block, penetrate in slide block centre bore and the lock dog, lock dog and slide block are all made with elastomeric material.Unclamp screw, screw is up, and lock dog shrinks, and slide block also shrinks, slide block increases in the gap of chute, and slide block can slide up and down along chute, and ruler also along with parallel mobile up and down, is tightened screw, screw is descending, and lock dog expands, and slide block also expands, and slide block is located in chute.The semicircle chi is enclosed within on the ruler, and the semicircle chi can laterally slide on ruler, and an acute angle drift angle of drawing square is fixed on the axle of semicircle chi garden, and drawing square can rotate around the axis.On another acute angle drift angle, a hole is arranged, be used for drawing circular arc.

Using method is: at first complete drawing paper on the plate face, when T-square, unclamp screw, can move up and down ruler, tighten again, fixedly ruler, when drawing vertical line, a right-angle side of set square is placed on the ruler, when drawing oblique line, rotates set square, can mark the oblique line of required angle according to the scale of semicircle chi, when making an arc line, nib is inserted in the hole line of can making an arc.

The utility model compared with prior art has the advantage of compact conformation, easy to use, multiple function.

Further specify the utility model below in conjunction with accompanying drawing.

Fig. 1 is a front view of the present utility model.

Fig. 2 is the cutaway view of Fig. 1 along the A-A line.

Fig. 3 is the cutaway view of Fig. 1 along the B-B line.

Ruler 10 is horizontal on drawing board 5, the left end of ruler and the left end of drawing board are slidingly connected: the left end of drawing board has chute 6, the following fixedly slide block 7 of ruler, down in chute,, a groove lid 8 is arranged at the left hand edge of drawing board for anti-limited slip block leaves chute, the groove lid slightly stretches into chute, form a salient angle, compensation mutually therewith, slide block has a re-entrant angle at this place.When groove was covered, slide block can not leave chute.Slide block has centre bore, and this bottom, hole is horn mouth (tapering is promptly arranged), and a nut is arranged in horn mouth, its outside also has tapering, is lock dog 11, and respectively there is a screw 9 at the two ends above the slide block, penetrate in the centre bore and lock dog of slide block, lock dog and slide block are made by plastics.Unclamp screw, screw is up, and lock dog shrinks, and slide block also shrinks, slide block increases in the gap of chute, and slide block can slide up and down along chute, and ruler also along with parallel mobile up and down, is tightened screw, screw is descending, and lock dog expands, and slide block also expands, and slide block is located in chute.Semicircle chi 4 is enclosed within on the ruler, and the semicircle chi can laterally slide on ruler, and an acute angle drift angle of isosceles drawing square 2 is on the axle of semicircle chi garden, and drawing square can rotate around the axis.On another acute angle drift angle, a hole 3 is arranged, be used for drawing circular arc.In drawing board upper end centre, fix a clip 1, be used for pressing from both sides drawing paper.Using method is: at first complete drawing paper on the plate face, fix with clip, when T-square, unclamp screw, can move up and down ruler, tighten again, fixing ruler when drawing vertical line, is placed on a right-angle side of set square on the ruler, when drawing oblique line, rotate set square, the scale of contrasting the semicircle chi can mark the oblique line of required angle, when making an arc line, nib is inserted in the hole line of can making an arc.

Claims

1, a kind of multifunctional drawing board, ruler is arranged, it is characterized in that: ruler is horizontal on drawing board, one end of ruler and the left end of drawing board are slidingly connected: an end of drawing board has chute, and fixing slide block below the ruler is down in chute, slide block has centre bore, this bottom, hole flare in this horn mouth, has a nut, its outside also has tapering, be lock dog, respectively there is a screw at the two ends above the slide block, penetrate in slide block centre bore and the lock dog, lock dog and slide block are all made with elastomeric material, the semicircle chi is enclosed within on the ruler, and an acute angle drift angle of drawing square is fixed on the axle of semicircle chi garden, on another acute angle drift angle a hole is arranged.

2, drawing board according to claim 1 is characterized in that: the left hand edge at drawing board has a groove lid, and the groove lid slightly stretches into chute, forms a salient angle, and slide block has a re-entrant angle at this place.

3, drawing board according to claim 1 is characterized in that: lock dog and slide block are made by plastics.