CN211195619U - Multifunctional marking protractor - Google Patents

Multifunctional marking protractor Download PDF

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Publication number
CN211195619U
CN211195619U CN201921945928.1U CN201921945928U CN211195619U CN 211195619 U CN211195619 U CN 211195619U CN 201921945928 U CN201921945928 U CN 201921945928U CN 211195619 U CN211195619 U CN 211195619U
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Prior art keywords
protractor
ruler
straight
hollowed
circle center
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CN201921945928.1U
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Chinese (zh)
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娄张禹泰
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娄张禹泰
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Abstract

The utility model belongs to the technical field of office stationery equipment, in particular to a multifunctional marking protractor; the structure comprises a protractor and a ruler; the inside of the protractor is a semicircular hollow groove, and the circle center of the hollow groove is coincided with the circle center of the protractor; the straight ruler is connected with the circle center of the protractor in a relative rotating mode; a hollowed-out groove is formed in the end part of one side of the straight scale from the joint of the straight scale and the protractor; the hollowed-out grooves are parallel to the long edges of the straight ruler; the utility model adopts the combination of the protractor and the ruler, and the hollowed-out grooves and the through holes are arranged on the ruler, thereby not only being convenient for drawing angle lines, but also being capable of drawing semi-circles with specific radiuses, and having various functions; meanwhile, the ruler is integrally arranged on the protractor, so that the ruler can be prevented from directly contacting with paper to influence the lines; the whole structure is reasonable in design and convenient and fast to use.

Description

Multifunctional marking protractor
Technical Field
The utility model belongs to the technical field of office stationery equipment, concretely relates to multi-functional marking protractor.
Background
The protractor is one of common drawing tools, is made of plastic or iron, and can draw a required angle according to requirements. Traditional protractor is when drawing the limit of specific angle and length, because the radius restriction of protractor semicircle, need confirm the position of a bit on the required straight line earlier usually, uses the ruler to couple this point and initial point again, then marks length, and the operation is comparatively loaded down with trivial details, and efficiency is not good, and the function singleness, consequently is necessary to design one kind and can draws the angle line fast, the high multi-functional marking protractor of precision.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an invention aims at overcoming the shortcoming that prior art exists, proposes to design a multi-functional marking protractor to simplify the process of angle measurement, save measuring time.
The utility model relates to a multifunctional marking protractor, the main structure of which comprises a protractor and a ruler; the inside of the protractor is a semicircular hollow groove, and the circle center of the hollow groove is coincided with the circle center of the protractor; the straight ruler is connected with the circle center of the protractor in a relative rotating mode; a hollowed-out groove is formed in the end part of one side of the straight scale from the joint of the straight scale and the protractor; the fretwork slot is parallel with the long limit of ruler, when the lines of specific angle need to be drawn, rotates the ruler to corresponding angle around the centre of a circle of protractor, directly along the fretwork slot setting-out can, convenient and fast.
Preferably, the center of the straight ruler is connected with the circle center of the protractor; the length of the straightedge can be greater than the diameter of the hollowed-out groove.
Preferably, the ruler is further provided with auxiliary scales; the auxiliary scale is located on one side of the hollowed-out groove, and lines with specific lengths can be drawn conveniently.
Preferably, a plurality of through holes are further uniformly formed in the ruler, the circle centers of all the through holes are located on the same straight line with the circle centers of the hollow grooves, the distance between the circle center of each hollow groove and the circle center of each adjacent through hole is 1cm, the distance between the circle centers of the adjacent through holes is also 1cm, and the circular arc with the specific radius can be conveniently drawn.
Preferably, the length of the hollowed-out groove is equal to the radius of the hollowed-out groove.
Preferably, the edge of one side of the ruler is provided with complete scales, so that the protractor has the function of a ruler.
Preferably, the circle centers of the ruler and the hollow groove are connected through a hollow rivet, and line drawing accuracy is improved.
Compared with the prior art, the utility model, have following advantage: the utility model adopts the combination of the protractor and the ruler, and the hollowed-out grooves and the through holes are arranged on the ruler, thereby not only being convenient for drawing angle lines, but also being capable of drawing semi-circles with specific radiuses, and having various functions; meanwhile, the ruler is integrally arranged on the protractor, so that the ruler can be prevented from directly contacting with paper to influence the lines; the whole structure is reasonable in design and convenient and fast to use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
the protractor comprises a protractor 1, a ruler 2, hollowed grooves 3, hollowed grooves 4, auxiliary scales 5, through holes 6, complete scales 7 and arrows 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The present invention will be further described with reference to the following specific embodiments and accompanying drawings.
Example 1:
as shown in fig. 1, the multifunctional reticle protractor according to the present embodiment has a main structure including a protractor 1 and a straight scale 2; the protractor 1 is internally provided with a semicircular hollow groove 3, and the circle center of the hollow groove 3 is superposed with that of the protractor 1; the straight ruler 2 is connected with the circle center of the protractor 1 in a relatively rotating manner; a hollowed-out groove 4 is formed in the end part of one side of the straight scale 2 from the joint with the protractor 1; the fretwork slot 4 is parallel with the long limit of ruler 2, when the lines of specific angle are drawn to needs, rotates ruler 2 to corresponding angle around the centre of a circle of protractor 1, directly along the fretwork slot 4 setting-out can, convenient and fast.
The center of the straight scale 2 in this embodiment is connected with the center of the protractor 1; the length of ruler 2 can be greater than the diameter of fretwork groove 3, is less than the diameter of the outside semicircle of protractor 2 simultaneously, and the length of ruler 2 also can be greater than the diameter of the semicircle in protractor 1 outside for ruler 2 wholly is located the top of protractor 1 during the setting-out, leads to the ruler downward sloping in preventing 2 tip department fretwork grooves 3 of ruler, influences the angle and observes, also avoids ruler 2 direct contact paper to cause the influence to the line of drawing when rotating simultaneously.
In this embodiment, the ruler 2 is further provided with auxiliary scales 5; the auxiliary scale 5 is positioned on one side of the hollowed-out groove 4, and is convenient for drawing lines with specific length.
This embodiment still evenly seted up a plurality of through-hole 6 on the ruler 2, the centre of a circle of all through-holes 6 all is in same straight line with the centre of a circle of fretwork groove 3, and the centre of a circle interval of fretwork groove 3 and adjacent through-hole 6 is 1cm, and the interval between the centre of a circle of adjacent through-hole 6 is 1cm, is convenient for draw specific radius's circular arc.
The length of the hollow groove 4 described in this embodiment is equal to the radius of the hollow groove 3.
In this embodiment, a complete scale 7 is arranged at the edge of one side of the ruler 2, so that the protractor has the function of a ruler.
This embodiment the centre of a circle of ruler 2 and fretwork groove 3 pass through hollow rivet and be connected, improved the setting-out precision.
In this embodiment, the straight scale 2 is provided with an arrow 8 pointing to the scale mark of the protractor 1, so that the rotation angle of the hollowed-out groove 4 is more accurate.
This embodiment protractor 1 be semi-circular structure, ruler 2 is the cuboid structure, protractor 1 and ruler 2 all have transparent material to make and form, the setting-out of being convenient for.
This embodiment ruler 2 can be around the rotatory 360 degrees in the centre of a circle of fretwork slot 3, when drawing the angle line, with protractor 1 and a straight line to thereafter, ruler 2 is rotatory to required angle, and the 4 setting-outs of fretwork slot on the edge ruler 2 can. Meanwhile, the auxiliary scales 5 can also directly draw angle lines with specific lengths, and the angle line drawing device is convenient and fast to use. When the circular arc is drawn to needs, can arrange through-hole 6 on the ruler 2 in the fretwork groove 3, can draw out specific radial semicircle this moment at most, also can arrange through-hole 3 in the outside of protractor 1, at this moment, can draw specific radial circular arc, the function is various, uses more in a flexible way.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.

Claims (8)

1. A multifunctional marking protractor comprises a main body structure, a protractor body and a ruler, wherein the protractor body structure comprises the protractor body and the ruler; the method is characterized in that: the inside of the protractor is a semicircular hollow groove, and the circle center of the hollow groove is coincided with the circle center of the protractor; the straight ruler is connected with the circle center of the protractor in a relative rotating mode; a hollowed-out groove is formed in the end part of one side of the straight scale from the joint of the straight scale and the protractor; the hollowed-out grooves are parallel to the long edges of the ruler.
2. The multi-functional reticle protractor of claim 1, wherein: the center of the straight ruler is connected with the circle center of the protractor; the length of the ruler is larger than the diameter of the hollow groove.
3. The multi-functional reticle protractor of claim 1, wherein: the ruler is also provided with auxiliary scales; the auxiliary scale is positioned on one side of the hollowed-out groove.
4. The multi-functional reticle protractor of claim 1, wherein: a plurality of through holes are further uniformly formed in the ruler, and the circle centers of all the through holes are located on the same straight line with the circle center of the hollow groove.
5. The multi-functional reticle protractor of claim 1, wherein: the length of the hollow groove is equal to the radius of the hollow groove.
6. The multi-functional reticle protractor of claim 1, wherein: and complete scales are arranged at the edge of one side of the ruler.
7. The multi-functional reticle protractor of claim 1, wherein: the circle centers of the straight ruler and the hollow groove are connected through a hollow rivet.
8. The multi-functional reticle protractor of claim 1, wherein: an arrow pointing to the scale lines of the protractor is arranged on the ruler.
CN201921945928.1U 2019-11-12 2019-11-12 Multifunctional marking protractor Active CN211195619U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921945928.1U CN211195619U (en) 2019-11-12 2019-11-12 Multifunctional marking protractor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921945928.1U CN211195619U (en) 2019-11-12 2019-11-12 Multifunctional marking protractor

Publications (1)

Publication Number Publication Date
CN211195619U true CN211195619U (en) 2020-08-07

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CN201921945928.1U Active CN211195619U (en) 2019-11-12 2019-11-12 Multifunctional marking protractor

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CN (1) CN211195619U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2779236C1 (en) * 2021-10-12 2022-09-05 Наталия Михайловна Кулаева Protractor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2779236C1 (en) * 2021-10-12 2022-09-05 Наталия Михайловна Кулаева Protractor

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