CN204136655U - A kind of multifunctional triangle - Google Patents

Abstract

The utility model discloses a kind of multifunctional triangle, comprise a pair L-square and one straight; On L-square, contiguous right angle is provided with an angle index groove, and described angle index groove is fan-shaped and surface has angle index line; The blade of described ruler is provided with one sliding tray, and described sliding tray snaps in the paintbrush that cross section is regular hexagon; The bottom of described ruler is provided with installing hole, and is hinged on described articulated column by installing hole, and the surface of this ruler is also provided with the index line being used to indicate described angle index line numerical value.The utility model needs because of instrument deficiency the trouble combined of repeatedly drawing when solving mapping, and practical, is worthy to be popularized.

Description

A kind of multifunctional triangle

Technical field

The utility model relates to a kind of multifunctional triangle.

Background technology

At present, in the study of mathematic subject, angle knowledge understand and grasp too busy to get away set square, the most traditional set square has two for a set of, be respectively 30 degree of angles and miter angle, student uses 30 degree of angles and miter angle to draw fast and specifies normally used angle line, but angle line at any angle cannot be drawn fast, also the circle of any radius cannot be drawn in addition, in order to the circle drawing angle line and any radius at any angle needs repeatedly to draw calculation combination, bring a large amount of troubles to like this study of student.

Utility model content

The utility model, in order to solve the above-mentioned deficiency of prior art, proposes a kind of multifunctional triangle.

In order to solve the problems of the technologies described above, the utility model by the following technical solutions: a kind of multifunctional triangle, comprises a pair L-square and one straight; On L-square, contiguous right angle is provided with an angle index groove, and described angle index groove is fan-shaped and surface has angle index line; Be fixedly connected with by an articulated column overlap between described L-square and L-square, the center of circle of this articulated column overlaps with the center of circle of described angle index groove; The blade of described ruler is provided with one sliding tray, and described sliding tray snaps in the paintbrush that cross section is regular hexagon; The bottom of described ruler is provided with installing hole, and is hinged on described articulated column by installing hole, and the surface of this ruler is also provided with the index line being used to indicate described angle index line numerical value.

Preferably, described angle index groove is that right angle is fan-shaped.

Compared with prior art, the cooperation of two L-squares that the utility model adopts and ruler can draw the circle of angle line and any radius size at any angle, for needing because of instrument deficiency the trouble combined of repeatedly drawing when student solves mapping, and structure is simple, be easy to realize, easy to use and practical, easy to carry, be worthy to be popularized.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is ruler structural representation of the present utility model;

Fig. 3 is side structure schematic diagram of the present utility model.

Detailed description of the invention

Below in conjunction with drawings and Examples, utility model is described in detail.

As shown in Figure 1,2 and 3, the multifunctional triangle that the utility model proposes, comprises a pair L-square 1 and a ruler 2, and wherein on L-square, contiguous right angle is provided with an angle index groove 3, and angle index groove 3 is that right angle is fan-shaped.

Angle index groove 3 is fan-shaped and surface has angle index line 31; Be fixedly connected with by articulated column 4 overlap between L-square 1 and L-square, the center of circle of this articulated column overlaps with the center of circle of angle index groove 3; The blade of ruler 2 is provided with one sliding tray 21, sliding tray 21 snaps in the paintbrush 22 that cross section is regular hexagon; The bottom of ruler 2 is provided with installing hole 23, and is hinged on articulated column by installing hole, and the surface of this ruler 2 is also provided with the index line 24 being used to indicate described angle index line 31 numerical value.

In the utility model, ruler is clipped in the middle by the L-square on both sides, articulated column 4 and angle index groove 3 are concentric circles, to this ensures that there when ruler rotates with the center of circle of angle index groove 3 for rotating in the center of circle, thus can be taken measurement of an angle by angle index line 31 and obtain required angle line.

Concrete use is, in time will drawing arbitrarily angled line, due to the center that ruler and L-square installing hole 23 are just in time angle measuring calibrations, and on ruler, have the index line 24 for measuring angle, just can see that root line of ruler instruction from above line 24 and angle index line 31 numerical value aligns when rotating ruler, just can know ruler and horizontal angle, thus the amount of playing acts at any angle, after angle needed for rotation, ruler is kept to fix, use the paintbrush setting-out in sliding tray 21, the line drawn is exactly required angle line, otherwise, also can as the angle value using this method to measure unknown angle line.

When needing the bowlder of any radius of picture, sliding tray on ruler loads onto hexagon pencil, when drawing circle, the center that ruler is connected with set square just in time can as the center of circle, scale on ruler is also calculate from ruler is connected center with set square, when mobile lead pencil is inside sliding tray, just can know and need the great circle of picture, after pencil is moved to required graduation position, with holding, the tight pencil that keeps is motionless in sliding tray, at rotation ruler, the circle that such pencil draws is the circle of required radius.

Above-described embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the utility model patent and protection domain should be as the criterion with appended claims.

Claims (2)

1. a multifunctional triangle, is characterized in that: comprise a pair L-square (1) and a ruler (2); On described L-square, contiguous right angle is provided with an angle index groove (3), and described angle index groove (3) is in fan-shaped and surface has angle index line (31); Be fixedly connected with by an articulated column (4) overlap between described L-square (1) and L-square, the center of circle of this articulated column overlaps with the center of circle of described angle index groove (3); The blade of described ruler (2) is provided with one sliding tray (21), described sliding tray (21) snaps in the paintbrush (22) that cross section is regular hexagon; The bottom of described ruler (2) is provided with installing hole (23), and is hinged on described articulated column by installing hole, and the surface of this ruler (2) is also provided with the index line (24) being used to indicate described angle index line (31) numerical value.

2. multifunctional triangle as claimed in claim 1, is characterized in that: described angle index groove (3) for right angle fan-shaped.