CN200995560Y

CN200995560Y - Multi-purpose triangle

Info

Publication number: CN200995560Y
Application number: CN 200720018392
Authority: CN
Inventors: 刘其红
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-01
Filing date: 2007-02-01
Publication date: 2007-12-26
Anticipated expiration: 2017-02-01

Abstract

A transparent plastic multifunctional triangular plate consists of a 45 degrees triangular plate and a 30 degrees triangular plate, and is characterized in that the 45 degrees triangular plate and an internal triangle with three parallel edges have a semicircle protractor, and the appearance has a certain space with the two internal edges of the triangular plate; with the center of the hole below the circle center hole of the protractor as 0 point, the surrounding of the 0 point has hole and mark with 0.5 millimeter interval and a certain distance to the 0 point, the surrounding of the 0 point has hole and mark with 1 millimeter interval and a certain distance to the 0 point, the diameter of each hole is larger than the diameter of a drawing pin by 0.1 millimeter, and a conical chamfering is above of 60 degrees; the 30 degrees triangular plate has a series of holes with small diameter and a certain size, each hole has short graduated line which is equally divided into four part and is in centripetal direction, and the size value of the hole is curved beside the hole; the three edges of the triangular plate have size graduated line with a certain percentage.

Description

Use set square more

Affiliated technical field

The utility model relates to stationery, especially set square.

Background technology

Will use set square, compasses, protractor during student's geometric construction, the set square of supplying on the market, compasses, protractor have only a kind of function mostly.

Summary of the invention

To be that design is a kind of use set square to the purpose of this utility model more, and it does not singly have the function of set square, can also take measurement of an angle and draw circle, can replace compasses, protractor, engineer's scale.

The purpose of this utility model realizes as follows: how to be made up of 45 degree set squares and 30 degree set squares with set square, 45 degree on the set squares in the interior triangle parallel with three limits design semicircular protractor is arranged, two inner edges of its profile and set square have certain space; Center, hole with protractor circle center hole bottom is 0 point, have apart from 0 certain limit interior 0.5 millimeter hole and sign at interval, have apart from 0 certain limit interior 1 millimeter hole and sign at interval, the diameter in each hole is bigger by 0 than drawing pin diameter, 1 millimeter, 60 ° circular cone chamfering is arranged above the hole; The minor diameter series of apertures of certain size is arranged on the 30 degree set squares, and each Kong Jun has the short groove of 4 centripetal directions such as branch such as grade, and the size value in this hole is carved on the next door, hole; All there is a certain proportion of size groove on three limits of set square.

Peg a hole with drawing pin, under the constraint in another hole, rotate, just can draw with this two pitch-row from the circle that is radius in company with 45 degree set squares with the pencil nib.In addition, for drawing small diameter bore easily, the hole on the available 30 degree set squares is made pattern and is directly drawn circle.Because the groove of different size ratio is arranged on the limit of two set squares, so many effects that has engineer's scale with set square.

The advantage that should many have with set square is: it has the function of set square, protractor, compasses, engineer's scale, and is convenient and practical, and certain popularization value is arranged.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the front view of 45 degree set squares.

Fig. 2 is the cutaway view that amplify at the B-B place among Fig. 1.

Fig. 3 is the cutaway view that amplify at the A-A place among Fig. 1.

Fig. 4 is the front view of 30 degree set squares.

1,45 degree set squares among the figure, 2,1: 5 size groove, 3, semicircular protractor, 4,0 point, 5,1: 3 size groove, 6,1: 1 size groove, 7,30 degree set squares, 8,1: 2 size groove, 9,1: 4 size groove.

The specific embodiment

With reference to accompanying drawing, how with set square with thick 1.5～2 millimeters transparent plastic manufacturing, accompanying drawing designs by 250 millimeters set squares.45 degree on the set squares 1 in the interior triangle parallel with three limits design the semicircular protractor 3 of 50 millimeters of radiuses is arranged.Two inner edges of its profile and set square have certain space, reason is: 1, the angle fashion of the painter's paraphernalia body number of degrees is marked, promptly draw behind the one side at angle with an end points of the round dot alignment edge of protractor, 0 degree line of protractor overlaps with the limit, groove place in the angle that will draw makes marks with pen, take away an end points on 45 degree set squares, 1 back linkage flag point and limit, promptly finish the work of picture angle.2, the convenient set square of taking, because two right-angle sides of set square all have chamfering, difficulty pinches.When taking set square than being easier to pinch the hypotenuse of set square and the cylindrical of inner edge or protractor thereof.Center, hole with protractor circle center hole bottom is 0: 4, have apart from 0: 4 in 12.5～40 millimeters scopes at interval 0.5 millimeter hole and sign, have apart from 0 o'clock 1 millimeter hole and sign at interval in 40～91 millimeters scopes.The diameter in each hole is bigger 0.1 millimeter than drawing pin diameter, 1 millimeter circular cone chamfering that has 60 ° apart from the bottom surface, hole.Draw bowlder, peg a hole, under the constraint in another hole, rotate, just can draw with this two pitch-row from the circle that is radius in company with set square with the pencil nib with drawing pin.Distance according to each hole to 0 learns that can draw diameter is 25,26,27 ... 79,80 millimeters integer circle and diameter are 82,84,86 ... 180, the circle at 2 millimeters at 182 millimeters intervals.In addition, any hole and another Kong Douke draw a circle, and therefore the circle that can draw is many, 3 millimeters of two Kongzui small distances, 180.6 millimeters of ultimate ranges.Substantially satisfy the needs of student's geometric construction.General when drawing less hole set square rotate difficultly, therefore design has diameter 3～24 millimeters scopes on 30 degree set squares 7, the diameter dimension in hole is 1 millimeter integer hole at interval.Each Kong Jun has the short groove of 4 centripetal directions such as branch such as grade, and the size value in this hole is carved on hole next door, can draw roundlet as pattern: the groove on the hole is aimed at the orthogonal cross hairs of drawn round centre point, draw circle with pencil along its limit, hole.The hypotenuse of 45 degree set squares 1 is carved with 1: 1 size groove 6, one right-angle side and is carved with 1: 3 size groove 5, and another right-angle side is carved with 1: 5 size groove 2.The hypotenuse of 30 degree set squares 7 is carved with 1: 1 size groove 6, one right-angle side and is carved with 1: 2 size groove 8, and another right-angle side is carved with 1: 4 size groove 9.How to have the function of engineer's scale with set square.

Because of circle drawn on student's geometric construction does not generally need very accurately, drew round requirement so should many can satisfy the student with set square, other geometric construction can both be finished.The one secondary many effects that can play set square, protractor, compasses, engineer's scale with set square.

Claims

1, a kind of transparent plastic is used set square more, is made up of 45 degree set squares and 30 degree set squares, it is characterized in that: 45 degree design in the interior triangle parallel with three limits on the set squares semicircular protractor, and two inner edges of its profile and set square have certain space; Center, hole with protractor circle center hole bottom is 0 point, have apart from 0 certain limit interior 0.5 millimeter hole and sign at interval, have apart from 0 certain limit interior 1 millimeter hole and sign at interval, the diameter in each hole is bigger 0.1 millimeter than drawing pin diameter, and 60 ° circular cone chamfering is arranged above the hole; The minor diameter series of apertures of certain size is arranged on the 30 degree set squares, and each Kong Jun has the short groove of 4 centripetal directions such as branch such as grade, and the size value in this hole is carved on the next door, hole; All there is a certain proportion of size groove on three limits of set square.

2, as claimed in claim 1 how it is characterized in that with set square: described 45 spend hole and the sign that 0.5 millimeter at the interior interval of 0: 12.5～40 millimeter scope of distance is arranged on the set squares, and the hole and the sign at 1 millimeter at the interior interval of 0: 40～91 millimeter scope of distance arranged.

3, as claimed in claim 1 how it is characterized in that with set square: diameter is arranged at 3～24 millimeters on the described 30 degree set squares, the diameter dimension in hole is 1 millimeter hole at interval.

4, as claimed in claim 1 how it is characterized in that with set square: the hypotenuses of described 45 degree set squares are carved with 1: 1 size groove, and a right-angle side is carved with 1: 3 size groove, and another right-angle side is carved with 1: 5 size groove; The hypotenuse of 30 degree set squares is carved with 1: 1 size groove, and a right-angle side is carved with 1: 2 size groove, and another right-angle side is carved with 1: 4 size groove.