CN201080087Y - Multifunctional triangle - Google Patents

Abstract

The utility model provides a multi-functional set square, which consists of a set square frame (1) and a small triangular block (2). A small hole is arranged at the apex B of the acute angle of the side, where the small triangular block is positioned, and another smaller hole is arranged at the indicating scale division A of the small triangular block. The small triangular block can slide on the BC side, therefore the distance from the CD side to the small triangular block can be directly read out, and parallel lines with given distance can be drawn out; a circle or a circular arc with given radius can be drawn out with B as the center of the circle and the distance between B and A as the radius.

Description

Multifunctional triangle

Technical field

The utility model belongs to drawing instrument, specifically a kind of multi-functional set square.

Background technology

Before the utility model proposes, well-known, set square is a kind of easy, commonly used and the drawing instrument popularized generally is used for drawing beeline and special angle, as 30 °, 45 °, 60 ° and 90 ° etc.And when drawing parallel lines, generally need cooperating between set square and ruler or the set square; When draw circles or circular arc, generally need use compasses.So need carry and use many instruments during actual the drawing, very inconvenient.

The utility model content

The purpose of this utility model is in order to design a kind of set square, can to bear the function of common set square, can conveniently drawing again to the parallel lines of set a distance and the circle or the circular arc of given radius.

The technical solution of the utility model is: this multifunctional triangle, form by triangle sheet frame and little corner block, in the triangle sheet frame, be furnished with little corner block, there is an aperture on the acute angle summit on limit, little corner block place on the triangle sheet frame, and also there is an aperture at little corner block indicating graduation place.

Be arranged in the little corner block in the triangle sheet frame, the protruding chute corresponding with triangle sheet frame right-angle side of the cunning of its right-angle side is connected.

Advantage of the present utility model is only both to have reached common set square function with a drawing instrument, can draw again to the parallel lines of set a distance and the circle and the circular arc of given radius; And it is simple in structure, easy to use.

Description of drawings

Fig. 1 is the overall structure schematic diagram of utility model multifunctional triangle.

Fig. 2 is that the chute of triangle sheet frame is with the protruding connection diagram of the cunning of little corner block.

Among the figure: triangle sheet frame 1, little corner block 2, chute 3, sliding protruding 4.

The specific embodiment

The utility model embodiment:

As Fig. 1, triangle sheet frame 1 links to each other with little corner block 2, and little corner block can slide on the BC limit.Thereby can directly read the distance of CD limit by scale, draw out parallel lines to set a distance to little corner block; There is an aperture at the B place, and little corner block also has an aperture at the diagram graduation mark A of place, fixes the B point with pen or other similar sharp objects, and drawing pen is protruded into the A hole, is the center of circle with B promptly, and the BA spacing is a radius, draws out the circle or the circular arc of given radius.

As Fig. 2, triangle sheet frame 1 is connected with little corner block 2 by the cunning protruding 4 of chute 3 by a correspondence, and little corner block can move along chute, to adjust parallel lines spacing or radius of a circle.

Claims (2)

1. multifunctional triangle is made up of triangle sheet frame and little corner block, it is characterized in that: in the triangle sheet frame (1), be furnished with little corner block (2), there is an aperture on the acute angle summit on limit, little corner block place on the triangle sheet frame, and also there is an aperture at little corner block indicating graduation place.

2. according to claims 1 described multifunctional triangle, it is characterized in that: be arranged in the little corner block in the triangle sheet frame, the cunning of its right-angle side protruding (3) chute (4) corresponding with triangle sheet frame right-angle side connects.

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