CN201998684U - Rotary measuring scale - Google Patents
Rotary measuring scale Download PDFInfo
- Publication number
- CN201998684U CN201998684U CN2011200965868U CN201120096586U CN201998684U CN 201998684 U CN201998684 U CN 201998684U CN 2011200965868 U CN2011200965868 U CN 2011200965868U CN 201120096586 U CN201120096586 U CN 201120096586U CN 201998684 U CN201998684 U CN 201998684U
- Authority
- CN
- China
- Prior art keywords
- ruler
- pen clip
- protractor
- cover
- semicircle protractor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to the technical field of teaching aids, in particular to a rotary measuring scale, which comprises a first ruler and a second ruler. The first ruler and the second ruler are provided with two opposite mark surfaces; one end of the first ruler and one end of the second ruler are provided with a first semicircular protractor and a second semicircular protractor respectively; holes are arranged at circle centers of the first semicircular protractor and the second semicircular protractor; the first semicircular protractor is movably connected with the second semicircular protractor by the aid of a rotating shaft penetrating through the holes; and the other end of the second ruler is provided with a pen clamping device. The rotary measuring scale is convenient in use, small-sized and portable, and can be fixed to a blackboard or other places.
Description
Technical field
The utility model relates to a kind of teaching aid technical field, specifically a kind of rotary gage.
Background technology
At present, teacher uses teaching aid through regular meeting and explains knowledge effectively in the mathematics class teaching, as protractor, ruler etc.Usually, these teaching aids all only possess simple function, therefore, teacher need carry a pile teaching aid at school the time, because the teaching aid number of packages is more, volume is bigger, teacher needs the frequent teaching aid of changing when using on class, very inconvenient, also waste instructional blocks of time simultaneously, thereby reduce efficiency of teaching.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of easy to carry, easy to use, can improve the teaching gage of efficiency of teaching.
A kind of rotary gage comprises first ruler and second ruler that are provided with two relative scale faces.One end of described first ruler is provided with the first semicircle protractor that has perforate at home position, and an end of described second ruler is provided with the second semicircle protractor that has perforate at home position; The described first semicircle protractor and the second semicircle protractor flexibly connect by the turning cylinder that runs through perforate; The other end of described second ruler is provided with the pen clip device.
Further, described pen clip device comprises folder chi cover and pen clip cover, and described folder chi cover is socketed on second ruler, and described pen clip is set on the top of folder chi cover.
Further, described pen clip puts the screw that is provided with nut and adapts.
Further, a side of described first ruler is provided with first sucker, and a side of the described first semicircle protractor is provided with second sucker.
With respect to prior art, the utlity model has following advantage: this rotary gage has increased the function of protractor and compasses on the basis of traditional ruler, and this function is finished by an educational aid, teacher is convenient for carrying, use more convenient simultaneously, further improve efficiency of teaching and quality of instruction, the sucker of setting up simultaneously can be adsorbed on the surface of teaching wallboard at any time, has alleviated user's fatigue.
Description of drawings
Fig. 1 is the overall structure schematic diagram of a kind of rotary gage described in the utility model;
Fig. 2 is the overall structure schematic diagram of pen clip device in a kind of rotary gage described in the utility model.
The Reference numeral division is as follows: 1, first ruler; 2, second ruler; 3, pen clip device; 4, first sucker; 5, second sucker; 11, the first semicircle protractor; 21, the second semicircle protractor; 31, folder chi cover; 32, pen clip cover; 321, screw; 322, nut.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
As shown in Figure 1, it is the structural representation of a kind of rotary gage described in the utility model, a kind of rotary gage, first ruler 1 and second ruler 2 that comprise face with relative two scales, one end of described first ruler 1 is provided with the first semicircle protractor 11 that has perforate at home position, and an end of described second ruler 2 is provided with the second semicircle protractor 21 that has perforate at home position.The first semicircle protractor 11 and the second semicircle protractor 21 flexibly connect by the turning cylinder that runs through perforate, and the other end of described second ruler 2 is provided with pen clip device 3.One side of described first ruler 1 is provided with first sucker 4, and a side of the described first semicircle protractor 11 is provided with second sucker 5.First ruler 1 is identical with the length of second ruler 2, and first ruler, 1 width is the twice of second ruler, 2 width, therefore, and the twice that first semicircle protractor 11 radiuses are second semicircle protractor 21 radiuses.When using as protractor, cooperate first ruler 1, second ruler 2 and the first semicircle protractor 11 to use, at this moment, second ruler 2 can be used as the extended line of angle, measures angle quickly and easily.When using as angle drawing device, cooperate first ruler 1, second ruler 2 and the first semicircle protractor 11 to use, at this moment, earlier second ruler 2 is turned to needed angle, be about to the angle that second ruler 2 is aimed on the first semicircle protractor 11, get final product along second ruler, 2 pictures then.The first semicircle protractor 11 and the second semicircle protractor 21 are used and can obtain each number of degrees.First sucker 4 and second sucker 5 can be fixed on blackboard or other places to ruler.
As shown in Figure 2, described pen clip device 3 comprises folder chi cover 31 and pen clip cover 32, and described folder chi cover 31 is arranged on second ruler 2, and described pen clip cover 32 is socketed on the folder chi cover 31.Described pen clip puts the screw 321 that is provided with nut 322 and adapts.Folder chi cover 31 has graduation mark between two parties.The screw 321 of pen clip cover 32 is regulated degree of tightness by nut 322 pen is fixed.When using as compasses, pen clip device 3 is put on second ruler 2, the folder chi cover 31 that has graduation mark this moment is slidably to the radius size of corresponding circle or circular arc, then, the pen cap is advanced in the pen clip cover 32, the screw 321 of the screw down clips pen cap 32, last, rotate second ruler 2 can draw needed circle or circular arc again.
Obviously the foregoing description is not to restriction of the present utility model, and above-mentioned a kind of rotary gage can also have other many variations.Though gone through the utility model in conjunction with above-mentioned example, some that should be understood that professional person in the industry can expect apparently are identical, and alternative scheme all falls within the protection domain that the utility model claim limited.
Claims (4)
1. rotary gage, comprise first ruler (1) and second ruler (2) that are provided with two relative scale faces, it is characterized in that, one end of described first ruler (1) is provided with the first semicircle protractor (11) that has perforate at home position, and an end of described second ruler (2) is provided with the second semicircle protractor (21) that has perforate at home position; The described first semicircle protractor (11) flexibly connects by the turning cylinder that runs through perforate with the second semicircle protractor (21); The other end of described second ruler (2) is provided with pen clip device (3).
2. a kind of rotary gage according to claim 1, it is characterized in that, described pen clip device (3) comprises folder chi cover (31) and pen clip cover (32), and described folder chi cover (31) is socketed on second ruler (2), and described pen clip cover (32) is arranged on the top of folder chi cover (31).
3. a kind of rotary gage according to claim 2 is characterized in that, the screw (321) that described pen clip cover (32) is provided with nut (322) and adapts.
4. a kind of rotary gage according to claim 1 is characterized in that a side of described first ruler (1) is provided with first sucker (4), and a side of the described first semicircle protractor (11) is provided with second sucker (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200965868U CN201998684U (en) | 2011-04-02 | 2011-04-02 | Rotary measuring scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200965868U CN201998684U (en) | 2011-04-02 | 2011-04-02 | Rotary measuring scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201998684U true CN201998684U (en) | 2011-10-05 |
Family
ID=44701453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200965868U Expired - Fee Related CN201998684U (en) | 2011-04-02 | 2011-04-02 | Rotary measuring scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201998684U (en) |
-
2011
- 2011-04-02 CN CN2011200965868U patent/CN201998684U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20120402 |