CN204136653U - A kind of multi-function protractor - Google Patents
A kind of multi-function protractor Download PDFInfo
- Publication number
- CN204136653U CN204136653U CN201420531366.7U CN201420531366U CN204136653U CN 204136653 U CN204136653 U CN 204136653U CN 201420531366 U CN201420531366 U CN 201420531366U CN 204136653 U CN204136653 U CN 204136653U
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- Prior art keywords
- rotating pointer
- degree
- length measuring
- protractor
- rule
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a kind of multi-function protractor, comprise the graduated semicircle protractor body of band, protractor body comprises circular arc angle tolerance part and length measuring part, protractor body is hollow structure, be positioned in described length measuring part, the point midway of 0 degree and 180 degree scale line of angle tolerance part is provided with the rotating pointer of orientation angle tolerance part, rotating pointer is provided with rotating pointer rule near the side of described 180 degree of scales, the center of rotation position of rotating pointer and described length measuring portion connection is through hole, the sideline bearing of trend of rotating pointer rule is by described through hole, on the back side of rotating pointer, be provided with the rectangular boss concordant with the sideline of rotating pointer rule, length measuring part is provided with the space holding rectangular boss near 0 degree of scale end.Owing to there being rectangular boss, rotating pointer is positioned at the hollow structure of protractor body all the time, can not come off.
Description
[technical field]
The utility model relates to a kind of protractor, particularly a kind of multi-function protractor.
[background technology]
In conventional protractor, comprise the protractor body with rule, described protractor body interior is provided with the cavity similar to its profile, the center line of described cavity and the center line of described protractor body coincide, and the center, base of this cavity is provided with the rotating pointer of the described scale layer of a sensing.This protractor can be measured and draw arbitrarily angled, but in the process of rotating pointer rotation, rotating pointer can come off out from cavity, is not easy to use and deposit.
[utility model content]
The utility model provides a kind of multi-function protractor, can not to take measurement of an angle the length on limit to solve above-mentioned protractor, can not draw the technical problem of circular arc or the circle of specifying radius by throughput hornwork.
In order to solve the problems of the technologies described above, the utility model provides a kind of multi-function protractor, comprise the graduated semicircle protractor body of band, described protractor body comprises circular arc angle tolerance part and length measuring part, described protractor body is hollow structure, be positioned in described length measuring part, the point midway of 0 degree and 180 degree scale line of described angle tolerance part is provided with the rotating pointer pointing to described angle tolerance part, described rotating pointer is provided with rotating pointer rule near the side of described 180 degree of scales, the center of rotation position of described rotating pointer and described length measuring portion connection is through hole, the sideline bearing of trend of described rotating pointer rule is by described through hole, on the back side of described rotating pointer, be provided with the rectangular boss concordant with the sideline of described rotating pointer rule, described length measuring part is provided with the space holding described rectangular boss near 0 degree of scale end.
The beneficial effects of the utility model are: owing to rotating pointer being provided with rotating pointer rule, can be taken measurement of an angle the length on limit, simultaneously, rotating pointer and length measuring portion connection center of rotation position are set to through hole, directly or can be drawn with through hole circular arc or the circle of the appointment radius being the center of circle by compasses, in rotating pointer use procedure, owing to there being rectangular boss, rotating pointer is positioned at the hollow structure of protractor body all the time, can not come off, simultaneously, when rotating pointer turns to 0 degree of scale end, the rectangular boss at the rotating pointer back side will embedded length be measured in the space of the rectangular boss of accommodation of part edge, make rotating pointer to be provided with rule measurement edge to align with 0 degree of graduation mark, when rotating pointer turns to 180 degree of scale ends, due to the position-limiting action of the rectangular boss at the rotating pointer back side, make rotating pointer to be provided with rule measurement edge to align with 180 degree of graduation marks.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described length measuring part is outward extended with L-square structure.
Adopt the beneficial effect of above-mentioned further scheme to be: length measuring part is outward extended with L-square structure, make protractor have the function of directly drawing right angle.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described L-square structure two right-angle side is provided with rule.
The beneficial effect of above-mentioned further scheme is adopted to be: two right-angle sides of L-square structure can also be used to measure the length of straight line.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described L-square structure centre position is provided with 30 degree and 60 degree of hollow angled arrangement.
The beneficial effect of above-mentioned further scheme is adopted to be: 30 degree in hollow structure and 60 jiaos, conveniently to draw common angle.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the utility model multi-function protractor,
Fig. 2 is the structural representation of the utility model multi-function protractor rotating pointer when turning to 0 degree of scale end.
In accompanying drawing, the list of parts representated by each label is as follows:
1, length measuring part, 11, angle tolerance part, 2, rotating pointer, 21, rotating pointer rule, 22, through hole, 23, rectangular boss, 3, L-square structure, 31,30 degree and 60 degree of hollow angled arrangement
[detailed description of the invention]
Below in conjunction with drawings and Examples, the utility model is further described.
The structural representation of the utility model multi-function protractor, see Fig. 1, comprises the length measuring part 1 of ruler shape, is arranged in length measuring part 1, the semi-annular shape angle being diameter with the length of length measuring part 1 tolerance part 11; Be positioned in length measuring part 2, in angle tolerance part 11, the line point midway place of 0 degree of scale and 180 degree of scales is provided with the rotating pointer 2 of orientation angle tolerance part 11, rotating pointer 2 is set to through hole 22 with the axle center of length measuring part 1 junction, the left side of rotating pointer 2 is provided with rotating pointer rule 21, the back side of rotating pointer 2 is provided with rectangular boss 23, with the left side and rotating pointer rule 21 justified margin of rotating pointer 2; Length measuring part 1, near 0 degree of scale end, is provided with the space holding described rectangular boss 23; Length measuring part 1 is outward extended with L-square structure 3, and two right-angle sides of L-square structure 3 are provided with rule, and the centre position of L-square structure 3 is provided with 30 degree and 60 degree of hollow angled arrangement 31.
Due to rotating pointer 2 being provided with rotating pointer rule 21, can be taken measurement of an angle the length on limit, meanwhile, rotating pointer 21 and center of rotation position, length measuring part 1 junction are set to through hole 22, can directly or draw with the circular arc of the through hole 22 appointment radius that is the center of circle or circle by compasses; When rotating pointer turn 2 move 0 degree of scale end time, the rectangular boss 23 at rotating pointer 2 back side will embedded length be measured in the space of the rectangular boss 23 of accommodation at part 1 edge, make the rotating pointer rule 21 on rotating pointer 2 measure edge to align with 0 degree of graduation mark, when rotating pointer 2 turns to 180 degree of scale ends, due to the position-limiting action of the rectangular boss 23 at rotating pointer 2 back side, make the rotating pointer rule 21 on rotating pointer 2 measure edge and align with 180 degree of graduation marks.
Two right-angle sides of L-square structure 3 are provided with rule and centre position has been provided with 30 degree and 60 degree of hollow angled arrangement 31, the convenient angled arrangement drawn right angle and 30 degree angles and 60 degree of angles etc. and commonly use; The material that the multi-function protractor that the utility model provides uses is transparent material, is convenient to like this for measuring and drawing.
Structural representation when the utility model multi-function protractor rotating pointer turns to 0 degree of scale end is see Fig. 2, in the space of the rectangular boss 23 of accommodation at rectangular boss 23 embedded length tolerance part 1 edge at rotating pointer 2 back side, the rotating pointer rule 21 on rotating pointer 2 is measured edge and is alignd with 0 degree of graduation mark.
Above multi-function protractor provided by the utility model is described in detail, apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands core concept of the present utility model for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (4)
1. a multi-function protractor, comprise the graduated semicircle protractor body of band, described protractor body comprises circular arc angle tolerance part and length measuring part, described protractor body is hollow structure, be positioned in described length measuring part, the point midway of 0 degree and 180 degree scale line of described angle tolerance part is provided with the rotating pointer pointing to described angle tolerance part, described rotating pointer is provided with rotating pointer rule near the side of described 180 degree of scales, the center of rotation position of described rotating pointer and described length measuring portion connection is through hole, the sideline bearing of trend of described rotating pointer rule is by described through hole, it is characterized in that, on the back side of described rotating pointer, be provided with the rectangular boss concordant with the sideline of described rotating pointer rule, described length measuring part is provided with the space holding described rectangular boss near 0 degree of scale end.
2. multi-function protractor according to claim 1, is characterized in that, described length measuring part is outward extended with L-square structure.
3. multi-function protractor according to claim 2, is characterized in that, described L-square structure two right-angle side is provided with rule.
4. the multi-function protractor according to Claims 2 or 3, is characterized in that, described L-square structure centre position is provided with 30 degree and 60 degree of hollow angled arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531366.7U CN204136653U (en) | 2014-09-16 | 2014-09-16 | A kind of multi-function protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420531366.7U CN204136653U (en) | 2014-09-16 | 2014-09-16 | A kind of multi-function protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204136653U true CN204136653U (en) | 2015-02-04 |
Family
ID=52413367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420531366.7U Active CN204136653U (en) | 2014-09-16 | 2014-09-16 | A kind of multi-function protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204136653U (en) |
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2014
- 2014-09-16 CN CN201420531366.7U patent/CN204136653U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |