CN2037682U - Multifunctional drawing rule - Google Patents

Abstract

The utility model discloses a multifunctional drawing rule, mainly comprising a fan-shaped rule and a straightedge. Two rules can relatively rotate and are provided with various drawing marks; therefore, various drawing functions can be achieved. Compared with the traditional drawing instrument, the utility model has the advantages of multiple functions, flexible operation, high efficiency and low cost.

Description

Multifunctional drawing rule

The utility model belongs to the improvement of engineering drawing instrument.

Existing traditional drawing instrument is as set square (45 ° * 30 ° * 60 °), protractor, engineer's scale, curve ruler and the drawing template that occurs in recent years, multi-function drawing instrument, how with T-square etc., though of a great variety.But exist defectives such as function singleness, very flexible, efficient are low, cost height to some extent, be difficult for popularizing and use.The object of the present invention is to provide a kind of multi-functional, high efficiency, drawing instrument cheaply.

Fig. 1 is the structural representation of range deflection fan in the designed multifunctional drawing ruler of the utility model, Fig. 2 is the structural representation of ruler, and 1 is ruler and fan the relative point of rotation of chi among the structural representation figure of Fig. 3 after for the combination of range deflection fan and ruler.2 is Baltimore groove on the ruler.3 tails for the fan chi.

Main points of the present utility model are: by the multifunctional drawing ruler that range deflection fan and ruler are formed, can distinguish separately and use, also can be combined in together and use, the combination of two chis is by fixedly point of rotation realization.Fixing form can have: pin, riveting, embedding etc., and accompanying drawing has provided the fixed form of inlaying, (promptly fan protruding (1) on the chi, be embedded in the hole (1) on the ruler, also can be opposite.) fixedly the requirement of the point of rotation be, both two chis were fixed together, two chis can rotate again relatively, and easy to assemble; In fan chi bottom one tail (3) is arranged, the point of rotation (1) thereon.Graduation mark is arranged at the bottom of tail, is used to measure the anglec of rotation; On the top (dotted line is with top) of ruler is Baltimore groove (2), and as shown in the figure, after Baltimore groove can make the combination of two chis, the back side kept a plane, and Baltimore groove middle part concave portion is the playground of fan chi tail (3).On range deflection fan, except that being carved with the tolerance scale, also be manufactured with the structure of conventional signs such as curved groove and drafting form and position tolerance, surface roughness, hatching, centre bore, be carved with three kinds of scale graduation lines commonly used at the two ends up and down of ruler, draw angle, part transition garden in addition and write grid and angulation groove.

Because these structures of the present utility model make multifunctional drawing ruler have following function:

1. basic identical because of range deflection fan and 45 ° of set square profiles, and can rotate around the point of rotation and ruler, so can draw figure line at any angle;

2. can draw the conventional machinery drawing(s) symbol on all directions, as form and position tolerance, surface roughness, centre bore, tapering, gradient etc.;

3. but the angle, transition garden of R1～R10 in the The drawing;

4. can survey and draw gradient, tapering;

5. profile drawing line equably;

6. can connect non-garden curve glossily;

7. can provide 1: 1, several engineer's scales such as 1: 2,1: 5;

8. can provide evenly whole mutually 5# and 10# to write grid;

9. can draw the angle of any size, and five equilibrium or dividing any angle not, and any five equilibrium or not five equilibrium garden arc and garden week.

This shows that the designed multifunctional drawing ruler of the utility model has many, easy to use flexible, high, the low cost and other advantages of efficient of function, is convenient to the popularization and application of society.The present invention can use plastics or lucite injection mo(u)lding.

Claims (4)

1. multifunctional drawing ruler, of the present utility model being characterised in that, it is made up of range deflection fan and ruler two parts.Can two chis be used in combination by the fixing point of rotation, also removable difference is used separately, to realize its various functions.

2. drawing rule according to claim 1, it is characterized in that: on range deflection fan, the structure that drawing conventional signs such as tolerance scale, curved groove, form and position tolerance, surface roughness, hatching, centre bore are arranged, at the two ends up and down of ruler three kinds of scale graduation lines commonly used are arranged, draw angle, part transition garden on it in addition, write grid and angulation groove.

3. drawing rule according to claim 1 and 2 is characterized in that: the lower end of range deflection fan has the upper end of a tail (3), ruler that Baltimore groove (2) is arranged.

4. drawing rule according to claim 3 is characterized in that: the point of rotation fixedly be the form of inlaying.