CN2136748Y

CN2136748Y - Multifunction drawing instrument

Info

Publication number: CN2136748Y
Application number: CN 92223725
Authority: CN
Inventors: 徐向舟
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-05-30
Filing date: 1992-05-30
Publication date: 1993-06-23
Anticipated expiration: 2002-05-30

Abstract

The utility model relates to a multifunction drawing instrument, belonging to the field of the drawing instrument. The multifunction drawing instrument is composed of a triangular rule, compasses connected in the middle part of the front surface of the triangular rule, and a shaped form scale connected with the triangular rule. The triangular rule is provided with an angle meter, a round angle bore and a curved plate; both edges of the triangular rule are provided with scale lines, a reinforcing plate is arranged on the middle part position connected with compasses; the bottom surface of the triangular rule keeps smooth. The compasses connected with the middle part of the triangle rule is provided with only one compasses bar; the compasses bar is connected with curved bolts, and can rotate on the plane surface of the triangular rule; one angled end portion of the triangular rule can be fixed with a needle; the triangular rule is also marked with a sizing rule. The utility model is a practical drawing instrument having flexible use, convenience, accuracy and multiple functions.

Description

Multifunction drawing instrument

Multi-functional drawing device belongs to the drawing instrument field.

In original technology, the multi-function drawing instrument of numerous species has only ruler mostly, protractor, the function of curve ruler, the inventor is at the utility model patent of application in 1989, and the patent No. is 89221270.5, designed a kind of collection set square, protractor, compasses, engineer's scale, dividers etc. are the practicality drawing device of one, use the drawing apparatus in the idea of one though proposed all students, a kind of multi-functional for developing, the new-type drawing instrument of light cheapness provides may basic complete and accurate, but design more coarse, especially compasses, protractor uses very inconvenient, and lacks curve ruler, functions such as sizing chi.

The purpose of this utility model is that it is flexible to design a kind of use, convenient, accurate, multi-functional practical drawing device.

Design philosophy of the present utility model is: reduce a gauge bar of compasses, and the reasonable Arrangement protractor, the fillet hole, curve ruler and the engineer's scale position on set square ties in them, produces best result of use, will increase function of use simultaneously.

Technical solution of the present utility model is: by set square (1), be connected in the compasses at middle part, set square front, the shaped form engineer's scale (14) that is connected on the set square is formed, have protractor (15) on the set square, fillet hole (16) and curve ruler, the both sides of set square have graduation mark, the middle part connects the compasses place and has stiffener, and it is smooth that the bottom surface keeps, of the present utility model being characterised in that, be connected in the compasses bar (24) at set square middle part, it is connected by bolt (22), can rotate on the plane of set square, by an angle of set square another gauge bar as compasses, pin can be consolidated in the end, angle, is carved with the sizing chi near the gauge bar place on set square.

Be provided with the solid needle tray (11) of rule as that angle of gauge bar on the above-mentioned set square and than solid needle tray (10), and an angle stiffener (3) arranged, prong (7) is fixed on the solid needle tray of rule by eye bolt (9) and hold-down nut (8) or than in the solid needle tray, can stretches or take off; Be connected in the folder pin end system of the gauge bar (24) at set square middle part

Shape, its high out-of-plane be greater than the length of side of the gross thickness of angle stiffener (3) and angle hold-down nut (8) apart from d, usually d gets 6 millimeters, its knuckle α is 25 °～30 °, usually get 28.2 °, gauge bar end intermediate plate (5) is fixed on prong (6), pen core (6 ') on the bar head by solid sheet bolt (4), and prong (6) and pen core (6 ') are scalable or take off.

Above-mentioned curve ruler is by link slot (17), throw crank slot (18), arc angle groove (19), oval groove (20) formation, each groove edge is all done groove and is handled, protractor is arranged near the inboard of the curve scale of set square middle part stiffener, the fillet hole (16) of different-diameter is arranged on the protractor, and arc angle groove (19) is arranged in the protractor outside.

Description of drawings

Accompanying drawing 1 is the floor map of multi-functional drawing device

Accompanying drawing 2 is multi-functional drawing device gauge bar part sectioned view

Be a most preferred embodiment of the present utility model below, provide details of the present utility model to closing accompanying drawing.

As shown in the figure, multi-functional drawing device is by set square (1), and engineer's scale (14) and compasses bar (24) are formed.On angle square, have protractor (15), fillet hole (16), link slot (17), throw crank slot (18), arc angle groove (19), oval groove (20), sizing chi (13), two sidebands of set square have scale, and the bottom surface of set square is smooth, can lie on the drawing, (2) are the center stiffener on the front of set square, (21) be pad, compasses bar (24) is installed on the stiffener of center by centre bolt (22), can be that rotate on the plane of set square at the center with bolt (22).The folder pin end of compasses bar (24) is made

Shape, its high out-of-plane be 6 millimeters apart from d, its knuckle is that 28.2 ° of gauge bar end intermediate plates (5) are fixed on prong (6) and pen core (6 ') on the bar head by solid sheet bolt (4), point bar (6) and all extended indentation of pen core (6 ') or take off, compasses bar (24) is made by transparent material, also has a cross-line (12) above it.By the angle (60 ° of angles in the accompanying drawing one) of set square another gauge bar as compasses, which is provided with the solid needle tray (11) of rule and than solid needle tray (10), the solid needle tray (11) of rule is parallel to the hypotenuse of set square, use when drawing bowlder, than solid needle tray (10) on the line of centres of the end points at 60 ° of angles of set square and centre bolt (22), prong (7) can be fixed on it above, a bar as divider uses, also has an angle stiffener (3), prong (7) is fixed on the solid needle tray of rule by eye bolt (9) and hold-down nut (8) or than in the solid needle tray, can stretches or take off.One sizing chi (13) is arranged at set square near the gauge bar place, according to can draw the exactly circle of certain diameter of the reading on it.

Curve ruler is made of four parts in accompanying drawing one.That is: link slot (17) is thrown crank slot (18), arc angle groove (19), oval groove (20), and wherein arc angle groove (19) has a 45, and to increase function of use, each groove edge has all been done the groove processing.

The shaped form engineer's scale is connected that place, limit of set square graduation mark, on the shaped form engineer's scale 1:2 is arranged, 1:4, and three kinds of scales of 1:5 for guaranteeing its convenient reading, are being made curved with the set square edge of shaped form engineer's scale connection.

Protractor is arranged near the set square middle part stiffener (2), the inboard of shaped form engineer's scale, the fillet hole (16) of different-diameter is arranged on the protractor, and arc angle groove (19) is arranged in the protractor outside, and fillet hole and the mating reaction of arc angle groove can make the picture angle very convenient.

Effect of the present utility model is to integrate compasses, divider, set square, protractor, sizing chi, engineer's scale, curve ruler, fillet hole, for numerous students provide nimble, accurate, multi-functional practical plotter.

Claims

1, multi-functional drawing device belongs to drawing instrument, it is by set square (1), be connected in the compasses at middle part, set square front, the shaped form engineer's scale (14) that is connected on the set square is formed, have protractor (15) on the set square, fillet hole (16) and curve ruler, two sidebands of set square have graduation mark, the middle part connects the compasses place and has stiffener, it is smooth that the bottom surface keeps, of the present utility model being characterised in that, the compasses that are connected in the set square middle part have only a gauge bar (24), and it is connected by bolt (22), can on the plane of set square, rotate, by an angle of set square another gauge bar as compasses, pin can be consolidated in the end, angle, is carved with the sizing chi near the gauge bar place on set square.

2, multi-functional drawing device according to claim 1, it is characterized in that, that angle that is used as gauge bar on the set square is provided with the solid needle tray (11) of rule and than solid needle tray (10), and an angle stiffener (3) arranged, prong (7) is fixed on the solid needle tray of rule by screw with holes (9) and hold-down nut (8) or than in the solid needle tray, can stretch or take off, the folder pin end that is connected in the gauge bar (24) at set square middle part is made

Shape, its high out-of-plane be greater than the gross thickness of angle stiffener (3) and angle hold-down nut (8) apart from d, usually d gets 6 millimeters, its knuckle α is 25 °～30 °, usually get 28.2 °, gauge bar end intermediate plate (5) is fixed on prong (6), pen core (6 ') on the bar head by solid sheet bolt (4), and prong (6) pen core (6 ') is scalable or take off.

3, multi-functional drawing device according to claim 1, it is characterized in that, above-mentioned curve ruler is by link slot (17), throw crank slot (18), arc angle groove (19) and oval groove (20) constitute, and each groove edge is all done groove and handled, and protractor is arranged near the inboard of the shaped form engineer's scale of set square middle part stiffener, the fillet hole (16) of different-diameter is arranged on the protractor, and arc angle groove (19) is arranged in the protractor outside.