CN2136454Y - Multipurpose template - Google Patents

Abstract

The utility model discloses a multifunctional ruler composed of a fixed ruler, a movable ruler and an angle measuring disc. The angle measuring disc whose back face is a regular polygon indicating disc is integrated with the fixed ruler. The top face of the end that the movable ruler is connected with the angle measuring disc is provided with a vernier. The utility model has the advantages of simple structure, low cost, multiple purposes, portability, convenient carrying, etc.

Description

Multipurpose template

The utility model multipurpose ruler, it belongs to a kind of plotting machine.

Students in middle and primary schools often use ruler, set square and protractor to draw, and this cover plotting machine number of packages is many, act ons singlely, but indispensable, each part is brought and changed during use, wants described point to rule when drawing the angle, and is not directly perceived, poor accuracy.In addition, the acute angle portion of set square fractures easily, damages, and ruler has been grown inconvenience and carried, and has lacked not enough use, and these all bring inconvenience to the user.

For overcoming the weak point that above-mentioned prior art exists, the utility model provides a kind of multipurpose ruler that ruler, set square and protractor are one that collects.

The purpose of this utility model reaches by following measure: the multipurpose ruler of being made up of ruler and protractor, it is characterized in that ruler comprises motionless chi and moving chi, motionless chi one end has 270 ° annular angle measuring calibration dish, and the back side of angle measuring calibration dish is regular polygon indicated number dish; Lobed arc angle vernier and guide rail briquetting on the chi face of moving chi and angulation scale link, they place the outside and the inboard of angulation scale respectively, and be movingly with the angulation scale, at moving chi end face, moving chi can be connected into a long ruler along 180 ° of measuring angle disc spins and with motionless chi to the guide rail briquetting mutually by screw retention.

Description of drawings is as follows:

Fig. 1 is the multipurpose ruler structural representation

Fig. 2 is the multipurpose ruler working state schematic representation

Fig. 3 is a multipurpose ruler deployed condition synoptic diagram

Fig. 4 is a B-B schematic cross-section among Fig. 1

Among the above figure, the motionless chi 2-of 1-moves chi 3-angulation scale

4-regular polygon indicated number dish 5-guide rail briquetting

6-screw 7-angle vernier

Below in conjunction with accompanying drawing the utility model is further described: referring to Fig. 1, multipurpose ruler is made up of ruler and protractor, wherein ruler comprises motionless chi (1) and moving chi (2), one end of motionless chi (1) has 270 ° annular angulation scale (3), and its back side is regular polygon indicated number dish (4); The arc angle vernier (7) that has guide rail briquetting (5) and projection on the end chi face that moving chi (2) is connected with angulation scale (3), guide rail briquetting (5) is fixed on inboard moving chi (2) the chi face of angulation scale (3) by screw (6), it is a quadrant shape plate, and the inner edge of its arc outer rim and angulation scale (3) is the wedge shape overlap joint; The inboard of angle vernier (7) has

The shape groove, the outer rim of it and angulation scale (3) is movingly, and moving related guide rail briquetting of chi (2) (5) and angle vernier (7) they are 180 ° along angulation scale (3) rotation maximum angle, and move chi (2) and be connected into a long ruler mutually with motionless chi (1) this moment.All there is a centimeter scale mark both sides of motionless chi (1) and moving chi (2), are carved with the saturating empty graph case of simple curve and serial roundlet on the chi face.When drawing straight line, motionless chi (1) and moving chi (2) are merged or launch use according to lines length; When drawing at any angle triangle, be baseline with the inner side edge of motionless chi (1), revolve rotary ruler (2), angle is decided the number of degrees from angulation scale (3) on request, decides score value from angle vernier (7), and it is long to draw deckle on the inner side edge of driven then chi (2); When drawing positive polygram, will move chi (2) and go to multipurpose ruler back side regular polygon indicated number dish (4) and go up required limit number, and fix a length of side then, and mobile successively ruler is drawn required limit number by the same length of side and promptly got positive polygram.

The utility model compared with prior art has the following advantages: simple in structure, cost is low, a chi is multiplex, easy to carry and use.

Claims (2)

1, a kind of multipurpose ruler of being made up of ruler and protractor is characterized in that ruler comprises motionless chi (1) and moving chi (2), and an end of motionless chi (1) has 270 ° annular angulation scale (3), and its back side is regular polygon indicated number dish (4); The arc angle vernier (7) that has guide rail briquetting (5) and projection on the chi face of moving chi (2) and angulation scale (3) link, they place the inboard of angulation scale (3) and the outside respectively and are movingly with the angulation scale, guide rail briquetting (5) leans on screw (6) to be fixed on the end face of moving chi (2), and all there is a centimeter scale mark both sides of motionless chi (1) and moving chi (2).

2, multipurpose ruler according to claim 1 is characterized in that moving chi (2) can be along angulation scale (3) Rotate 180 °.

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