CN2341116Y - Multifunctional ruler - Google Patents

Abstract

The utility model relates to a multifunctional ruler, belonging to stationery, particularly the multifunctional ruler. The multifunctional ruler is composed of two straight rulers that are respectively provided with a dial disc of 360 DEG at each of one end, and the centers of the two discs are connected through a rotary shaft. The utility model has the advantages of simple structure, low cost, convenient use and convenient carryover. Straight lines or arbitrary angle can be quickly drawn, and the angle can also be measured.

Description

A kind of multipurpose ruler

The utility model belongs to stationery, particularly has the ruler of multiple function.

Existing drawing instrument commonly used has ruler, set square, protractor etc., its function singleness, only be used for the picture straight line, draw specific angle or take measurement of an angle, if will paint the figure of special angle, just must cooperate use by several instruments, mapping is trouble, the time ratio of cost is more, and careless slightly error is just very big; Many drawing instruments carry and manage inconvenience in addition, and average price is higher during purchase,

The purpose of this utility model provides a kind of multi-functional ruler, and it is simple in structure, cost is low, use is easy, easy to carry, drawing beeline or arbitrarily angle, also mensurable angle and picture circular arc quickly.

The realization the technical solution of the utility model is: be made of two rulers that at one end have 360 ° of dial discs, connect the center of two disks by rotating shaft, these two rulers are joined together.

Below, the specific embodiment of the present utility model according to Figure of description provides describes in further detail its structure.

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

Fig. 2 is the clamp synoptic diagram that matches with ruler.

Referring to each figure, this multipurpose ruler is made of two rulers 2 that at one end have 360 ° of dial discs 1, and the center by rotating shaft 3 connections two disks 1 is joined together these two rulers 2, scale all is with on two limits of ruler 1, and wherein the extended line on a limit overlaps (see figure 1) with disc centre.Clamp 4 is housed on the ruler 2, on the relative face of clamp 4 some little teeth 5 is arranged, the end of clamp 4 has aperture 6 (see figure 2)s that the picture circular arc is used.When desire is drawn required angle, as long as rotate this chi, reflect the angle [alpha] of needs on the disk that plays the protractor effect, it is exactly required angle that the angle that forms is intersected on the ruler limit, and can measure the line segment length that constitutes this angle on the ruler limit; When drawing long straight line, rotating the ruler limit angle of cut is 180 °, just can draw the straight line of Len req, and not collapsible gathering of time spent; When desiring to paint the circle of required radius or circular arc, the slip clamp inserts aperture to suitable scale with nib on ruler, and compressing changes the needle point of taking out, and circular arc fast just can draw.

From technique scheme of the present utility model, this chi is simple in structure, and cost is low, uses easily one-object-many-purposes, easy to carry, drawing beeline or angle, also mensurable angle and picture circular arc arbitrarily quickly.

Claims (2)

1, a kind of multipurpose ruler is made of two rulers that at one end have 360 ° of dial discs, connects the center of two disks by rotating shaft.

2, by the described multipurpose ruler of claim 1, it is characterized in that scale all is with on two limits of ruler, and wherein the extended line on a limit overlaps with disc centre, and clamp is housed on the ruler, has aperture on the clamp.

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