CN202986532U - Ruler convenient for drawing circles - Google Patents

Abstract

Disclosed is a ruler convenient for drawing circles. The ruler comprises an elongated ruler body, and scales are arranged on at least one side of the elongated ruler body; and the ruler is characterized in that an original hole is arranged at the position of a zero scale of the elongated ruler body, a slot-shaped opening is arranged from the original hole and is parallel to the elongated ruler body, an evenly arranged sawtooth-shaped edge is arranged on one side of the slot-shaped opening, and the sawtooth-shaped edge is close to the scales. The ruler can be used as a ruler and a compass for drawing circles, a pen is inserted into the original hole to be used as a the centre of a circle, and the other pen is placed at the position of the sawtooth-shaped edge to draw circles by selecting appropriate sizes.

Description

A kind of ruler of being convenient to the picture circle

Technical field

The utility model relates to a kind of ruler, particularly relates to a kind of novel ruler of being convenient to the picture circle, and the utility model belongs to the technical field of stationery.

Background technology:

For student or civilian personnel, many stationery are important, such as pen, pencil, pocket knife, rubber etc., generally indispensable stationery, but some other stationery, for example ruler, compasses etc., especially for common civilian personnel, not generally frequent use, so a lot of people and not having, but once in a while when use, in a rush again, look round for, very inconvenient.

Compasses of the prior art in mathematics and drawing, are the instruments of draw circles or string, are usually used in construction with ruler and compasses.The metal that compasses are made usually comprises that two parts connect by a hinge, wherein can adjust.

Compasses divide common compasses, bow-spring compasses, drop bow, trammel etc.

Compasses are made of nib, rotating shaft, compasses supporting leg, lattice chi, hinged joint, handwriting, nib, compasses point, microtia, the upper end that is connected to handwriting is inserted in the lower end of its nib, the lower end of the formation of handwriting compasses is threaded in the upper end of nib, the concordant end of microtia is welded in the middle of the outside of compasses supporting leg, and the lower end of compasses supporting leg clamps the upper end that is connected to the compasses point.It is characterized in that: the one side of handwriting is pasted the one side that is connected to hinged joint, and the another side of hinged joint is pasted and is connected in the middle of an end of lattice chi, and the two ends that are connected to rotating shaft are inserted in the both sides, crack upper end of handwriting, and the axis body of rotating shaft wears the upper end that is connected to the compasses supporting leg.

This shows, although compasses are of little use for common civilian personnel, but complex structure, therefore a lot of people can not have, and therefore, are necessary a kind of novel stationery of utility model, the stationery that compasses, the common civilian personnel of this class of ruler often do not use can be integrated, and simple in structure, be easy to preserve, in case of need.

In view of this, our company has worked out a kind of ruler of being convenient to the picture circle through concentrated research for many years, and this ruler has with low cost, and is easy to use, space-saving, is easy to the advantages such as preservation.

The utility model content

The technical problems to be solved in the utility model is: although compasses are of little use for common civilian personnel, but complex structure, therefore a lot of people can not have, therefore, be necessary a kind of novel stationery of utility model, the stationery that compasses, the common civilian personnel of this class of ruler often do not use can be integrated, and simple in structure, be easy to preserve, in case of need.

In order to solve the problems of the technologies described above, the utility model provides a kind of ruler, and a kind of novel ruler of being convenient to the picture circle particularly is provided, and can address the above problem eaily, and concrete technical scheme is as follows:

A kind of ruler of being convenient to the picture circle, described ruler has the strip blade, has scale at least one side of described strip blade, it is characterized in that: described strip blade has an initial point hole at the zero graduation place, begin to be provided with abreast a long trough opening with described strip blade from described initial point hole, the jagged edge that has even setting on a side of described long trough opening, described jagged edge and described scale are pressed close to.

Preferably, described ruler is made by stainless steel.

Preferably, described ruler is made of plastics.

Preferably, described jagged edge is for to arrange a sawtooth every one millimeter.

Preferably, described jagged edge and described initial point hole are on same straight line.

The beneficial effects of the utility model are: the utility model can either use as ruler, can also be used as simultaneously initial planning institute, and one-pen is inserted in the initial point hole as the center of circle, and another one-pen selects appropriate size to come the picture circle to get final product at the jagged edge place.

Description of drawings

Accompanying drawing 1 is the schematic diagram of being convenient to the ruler of picture circle provided by the utility model.

Reference numeral 1-strip blade wherein, 2-scale, 3-initial point hole, 4-jagged edge.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described.

As shown in Figure 1, a kind of ruler of being convenient to the picture circle, described ruler has strip blade 1, has scale 2 at least one side of described strip blade 1, it is characterized in that: described strip blade 1 has an initial point hole 3 at the zero graduation place, be provided with abreast a long trough opening from hole 3 beginnings of described initial point with described strip blade 1, the jagged edge 4 that has even setting on a side of described long trough opening, described jagged edge 4 is pressed close to described scale 2, described jagged edge 4 with described initial point hole 3 on same straight line.

Claims (5)

1. be convenient to the round ruler of picture for one kind, described ruler has the strip blade, has scale at least one side of described strip blade, it is characterized in that: described strip blade has an initial point hole at the zero graduation place, begin to be provided with abreast a long trough opening with described strip blade from described initial point hole, the jagged edge that has even setting on a side of described long trough opening, described jagged edge and described scale are pressed close to.

2. the ruler of being convenient to picture circle as claimed in claim 1, it is characterized in that: described ruler is made by stainless steel.

3. the ruler of being convenient to picture circle as claimed in claim 1, it is characterized in that: described ruler is made of plastics.

4. the ruler of being convenient to picture circle as claimed in claim 1, it is characterized in that: described jagged edge is for to arrange a sawtooth every one millimeter.

5. the ruler of being convenient to picture circle as claimed in claim 1 is characterized in that: described jagged edge and described initial point hole are on same straight line.

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