CN201009600Y

CN201009600Y - Multifunctional combined triangle

Info

Publication number: CN201009600Y
Application number: CNU2007200781177U
Authority: CN
Inventors: 周陈晨
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-08
Filing date: 2007-01-08
Publication date: 2008-01-23
Anticipated expiration: 2017-01-08

Abstract

The utility model discloses a multifunction combined set square, a protractor dial (1a) is depicted near an angle of 45 degrees on a set square (1) with 45 degree of the combined set square; the center of the protractor dial (1a) is in pin joint with the bevel edge of a set square (2) with 60 degrees; the 0 degree line of the protractor dial (1a) is in parallel with the bevel edge of the set square (1) with 45 degrees. The set square incorporates the function of various drawing tools such as ordinary set square, protractor and movable ruler, which is convenient for use and flexible, and takes small room, and is easy to store and not easy to be lost.

Description

Multifunction combined set square

Technical field

The utility model relates to a kind of schooling apparatus, relates in particular to a kind of mathematical studying apparatus.

Background technology

Students in middle and primary schools need to use apparatus such as set square, ruler solids such as point, line, surface are drawn and to be learnt in the mathematical studying process; Use compasses to draw circle; Size with protractor diagonal angle degree is measured.Existing these schooling apparatus, a lot of inconvenient parts are arranged in use: utensil function singlenesses such as commercially available set square, ruler, protractor, compasses, every kind of amount drawing tools can only be realized a kind of function, the student is carrying out mathematics especially during geometrical learning, often draw a kind of figure and need to use simultaneously good several instruments, frequent replacement instrument in the drawing, efficient is low.Because the tool using number of packages is most, takies school bag, parking spaces such as desk, and be easy to lose.

The utility model content

The purpose of this utility model just provides a kind of multifunction combined set square, and this set square integrates the function of multiple drawing instruments such as common set square, protractor, adjustable rule, and is easy to use, flexible, occupies little space, and is easy to deposit, and is difficult for losing.

The technical scheme that its goal of the invention that realizes the utility model adopts is: a kind of multifunction combined set square, comprise 45 degree set squares and 60 degree set squares, and its design feature is: portrayal has the protractor dial near the miter angle on the 45 degree set squares; The center of this protractor dial and 60 degree set square hypotenuses are hinged; And 0 degree line of this protractor dial is parallel with the hypotenuse of 45 degree set squares.

Compared with prior art, the beneficial effects of the utility model are: during use, two set squares of the present utility model have general set square original functions such as the straight line of drafting, measurement length, drafting 30,45,60, an angle of 90 degrees as common set square.And angle is at any angle drawn or measured to the angle of its also available two set square hypotenuse.That is: two set squares are rotated along its hinged place, then the angle between the set square hypotenuse changes in twos, because 0 degree line of protractor dial is parallel with the hypotenuse of 45 degree set squares, 0 degree line constitutes the parallel lines corresponding angles that equate with the angle of 60 degree set square hypotenuses on the angle of two hypotenuses and the protractor dial, also is 60 to spend the number of degrees that angle number on the protractor dial that the set square hypotenuses are aimed at is the hypotenuse angle of two set squares.Like this, the utility model integrates the function of common set square, protractor and the multiple drawing instrument of adjustable rule, and is easy to use, flexible; And the apparatus number of packages reduces, and reduces taking of school bag and desk space, is convenient to deposit, and is difficult for losing.

The angle of two hypotenuses of above-mentioned hinged two set squares is 75 when spending, and it is overlapping that the other hypotenuses and 60 of protractor dial are spent the minor face of set squares on the 45 degree set squares.

Like this, the utility model uses when depositing superimposed more neat, attractive in appearance, deposits also more convenient.

On the above-mentioned 45 degree set squares, be hinged with the compasses pen or the compasses pen cap near the miter angle away from the protractor dial.

Hinged compasses pen is used for the picture circle near the miter angle.During drafting, hand pinches near the hinged place of two set squares, spends the angle end points as the center of circle with 30 of 60 degree set squares, and the rotation of compasses pen can the picture circle.Regulate the angle of two set square hypotenuses and the distance between a compasses nib and the 30 degree angle end points, can adjust drawn radius of a circle easily.Like this, but the utility model also the double as compasses use.Function is more, has further reduced the number of packages of apparatus, has reduced taking of space.

With concrete embodiment the utility model is further described in conjunction with the accompanying drawings down.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one.

Fig. 2 is the schematic diagram of the utility model embodiment one when making protractor and using.

Fig. 3 is the schematic diagram of the utility model embodiment two when making compasses and using.

The specific embodiment

Embodiment one

Fig. 1,2 illustrates, and a kind of specific embodiment of the present utility model is: a kind of multifunction combined set square comprises that near the portrayal of a miter angle on 45 degree set squares 1 and 60 degree set squares, 2, the 45 degree set squares 1 has protractor dial 1a; The center of this protractor dial 1a and 60 degree set squares, 2 hypotenuses are hinged; The 0 degree line of this protractor dial 1a is parallel with the hypotenuse of 45 degree set squares 1.

The angle of two hypotenuses of two hinged set squares 1,2 is 75 when spending, and it is overlapping that the other hypotenuses and 60 of protractor dial 1a are spent the minor face of set squares 2 on the 45 degree set squares 1.

Embodiment two

Fig. 3 illustrates, and present embodiment and embodiment one are basic identical, different only be: on the 45 degree set squares 1, be hinged with compasses pen 3 near the miter angle away from protractor dial 1a.

For ease of processing, the hinged place of two set squares of the present utility model should be opened axis hole at the protractor dial 1a center of 45 degree set squares 1, and on the hypotenuse of 60 degree set squares 2 circular or semicircular hinge is set.And this articulated structure also can adopt dismountable structure.

Compasses pen of the present utility model is the various compasses pens that dispose on the existing compasses.Also can adopt fit that uses on the various existing compasses or the compasses pen cap that clamps pen and pen core etc. during actual enforcement.

Claims

1. a multifunction combined set square comprises 45 degree set squares (1) and 60 degree set squares (2), and it is characterized in that: portrayal has protractor dial (1a) near the miter angle on the described 45 degree set squares (1); The center of this protractor dial (1a) and 60 degree set square (2) hypotenuses are hinged; 0 degree line of this protractor dial (1a) is parallel with the hypotenuse of 45 degree set squares (1).

2. multifunction combined set square as claimed in claim 1, it is characterized in that: described two hinged set squares (1, the angle of two hypotenuses 2) is 75 when spending, and 45 degree set squares (1) are gone up the other hypotenuses of protractor dial (1a) and 60, and to spend the minor face of set squares (2) overlapping.

3. multifunction combined set square as claimed in claim 1 is characterized in that: on the described 45 degree set squares (1), be hinged with the compasses pen or the compasses pen cap (3) near the miter angle away from protractor dial (1a).