CN203460583U - Graphometer facilitating angle measurement and angle drawing - Google Patents

Abstract

The utility model provides a graphometer facilitating angle measurement and angle drawing and belongs to school things. A graphometer body consists of a straight rule edge and a semicircular edge, wherein scales are respectively arranged on the straight rule edge and the semicircular edge, pads are installed at two end portions of the back side of the straight rule edge, and an angle scale is an equilateral triangle. A groove is formed at the position nearby the bottom side of the equilateral triangle, a vertex angle of the equilateral triangle is connected with the inner lateral side of the straight rule edge of the graphometer body, and the semicircular edge of the graphometer body is horizontally installed in the groove of the angle scale. A scale cover plate is buckled above the graphometer body, the graphometer body is fixed between the scale cover plate and the angle scale through two fixing parts located outside the semicircular edge of the graphometer body and one fixing part of the inner round edge of the semicircular edge of the graphometer body, and the fixing parts protrude out of the graphometer body and are located on the same plane with the pads. The graphometer facilitating the angle measurement and the angle drawing has the advantages that the angle scale freely slides on the semicircular edge of the graphometer body, so that any required angle can be very conveniently measured or drawn.

Description

Facilitate angulation, draw the graphometer at angle

Technical field

The utility model belongs to a kind of schooling apparatus, particularly a kind of graphometer that facilitates angulation, picture angle.

Background technology

We use traditional graphometer measuring method or draw one and bother very much during angle at any angle, particularly draw angle, to first draw a horizontal line, then graphometer base central point is aimed to the end points of horizontal line, graphometer base is overlapped with horizontal line, then find the angle needing to carry out gauge point from graphometer circular arc, withdraw graphometer, with straightedge, horizontal line end points and gauge point are connected to a straight line, the angle of such two straight lines is the angle that will draw.Very inconvenient like this.

Utility model content

The purpose of this utility model is to overcome above-mentioned defect, and a kind of graphometer that facilitates angulation, draws angle is provided, and it can just can measure or draw the angle that will draw arbitrarily by being free to slide of scale, very convenient.

The purpose of this utility model is achieved through the following technical solutions: a kind of angulation that facilitates, draw the graphometer at angle, it is characterized in that: it comprises graphometer body, angle scale and scale cover plate form, said graphometer body is comprised of ruler limit and half round edge, on ruler limit and half round edge, be respectively equipped with scale, pad is installed at the both ends, the back side on ruler limit, said angle scale is equilateral triangle, its place, nearly base is provided with groove, its drift angle is connected with the inner side edge of graphometer body right-angle side, sleeping being contained in the groove of angle scale of half round edge of graphometer body, said scale cover plate spiral-lock is above graphometer body, a fixture by two fixtures in graphometer body half round edge outside and graphometer body half round edge internal circle is fixed on graphometer body between scale cover plate and angle scale, fixture is given prominence to graphometer body, be positioned at same plane with pad.

Advantage of the present utility model and beneficial effect are: half round edge by angle scale at graphometer body is free to slide, and can measure or draw the angle of any needs, very convenient.

Accompanying drawing explanation

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

Fig. 2 is the A-A cutaway view of Fig. 1.

Wherein: 1-graphometer body, 2-angle scale, 3-scale cover plate, 4-ruler limit, 5-half round edge, 6-scale, 7-groove, 8-fixture, 9-pad.

The specific embodiment

Embodiment: as shown in the figure, a kind of angulation that facilitates, draw the graphometer at angle, it comprises graphometer body 1, angle scale 2 and scale cover plate 3 form, said graphometer body 1 is comprised of ruler limit 4 and half round edge 5, on ruler limit 4 and half round edge 5, be respectively equipped with scale 6, pad 9 is installed at the both ends, the back side on ruler limit 4, said angle scale 2 is equilateral triangle, its place, nearly base is provided with groove 7, its drift angle is connected with the inner side edge of graphometer body 1 right-angle side 4, half round edge 5 of graphometer body 1 crouches and is contained in the groove 7 of angle scale 2, said scale cover plate 3 spiral-locks are above graphometer body 1, a fixture 8 by two fixtures 8 in graphometer body 1 half round edge 5 outsides and graphometer body 1 half round edge 5 inner sides is fixed on graphometer body 1 between scale cover plate 3 and angle scale 2, the outstanding graphometer body 1 of fixture 8, be positioned at same plane with pad 9.

Claims (1)

1. one kind facilitates angulation, draw the graphometer at angle, it is characterized in that: it comprises graphometer body, angle scale and scale cover plate form, said graphometer body is comprised of ruler limit and half round edge, on ruler limit and half round edge, be respectively equipped with scale, pad is installed at the both ends, the back side on ruler limit, said angle scale is equilateral triangle, its place, nearly base is provided with groove, its drift angle is connected with the inner side edge of graphometer body right-angle side, sleeping being contained in the groove of angle scale of half round edge of graphometer body, said scale cover plate spiral-lock is above graphometer body, a fixture by two fixtures in graphometer body half round edge outside and graphometer body half round edge internal circle is fixed on graphometer body between scale cover plate and angle scale, fixture is given prominence to graphometer body, be positioned at same plane with pad.

Images