CN204820805U - Multi -functional portable mathematics teaching aid - Google Patents
Multi -functional portable mathematics teaching aid Download PDFInfo
- Publication number
- CN204820805U CN204820805U CN201520479438.2U CN201520479438U CN204820805U CN 204820805 U CN204820805 U CN 204820805U CN 201520479438 U CN201520479438 U CN 201520479438U CN 204820805 U CN204820805 U CN 204820805U
- Authority
- CN
- China
- Prior art keywords
- ruler
- pin shaft
- active pin
- teaching aid
- sliding tray
- 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 discloses a multi -functional portable mathematics teaching aid, including first ruler, the second ruler, the third ruler, fourth ruler and protractor, first ruler is in the same place through first removable pin axle swing joint with the second ruler, one side fixed mounting of first removable pin axle has little brush, be provided with the cavity with chalk looks adaptation on the first ruler, the side of first ruler is the brush hair of the fixed board that is used for blacking evenly, still there is the compasses leg through fourth removable pin axle swing joint on the first ruler, the terminal still fixedly connected with of first ruler is used for the compasses angle of location, be provided with a sliding tray on the second ruler, be provided with on the sliding tray can be in the sliding tray gliding sliding sleeve, the sliding sleeve has two, two sliding sleeves respectively with the one end swing joint of third ruler and fourth ruler, the other end of third ruler and fourth ruler passes through second removable pin axle swing joint and is in the same place. The utility model discloses convenient to use collects multi -functional, has the multi -purpose characteristics of a thing.
Description
Technical field
The utility model relates to teaching aid technical field, is specially a kind of portable multifunctional mathematics teaching aid.
Background technology
At present, teacher is in mathematical education process, frequent use teaching aid is mapped on blackboard, especially, in geometric construction demonstration, set square teaching aid can be used, the teaching aid such as protractor and compasses, these teaching aids compare dispersion, need during mapping to change back and forth, waste valuable instructional blocks of time, and considerably increase the workload of teacher.Existing mathematics teaching aid effect is single, in teaching process, teaching aid compares dispersion, not portable, especially the leg-of-mutton drafting difficulty of various different angles in teaching process, existing ruler may not meet the tolerance of large scale, may bring operate miss, and holding of chalk uses chalk holder, both took place, incompatible with whole religion platform again, aobvious is comparatively in disorder; Meanwhile, present blackboard eraser adds hairbrush by one piece of plank and forms, and function is comparatively single, so propose a kind of portable multifunctional mathematics teaching aid.
Utility model content
The purpose of this utility model is to provide a kind of portable multifunctional mathematics teaching aid, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme: a kind of portable multifunctional mathematics teaching aid, comprise the first ruler, second ruler, 3rd ruler, 4th ruler and protractor, described first ruler and the second ruler are movably connected by the first active pin shaft, the side of described first active pin shaft is installed with small brushes, described first ruler is provided with the cavity suitable with chalk, the side of described first ruler is evenly fixed for the bristle erased the board, described first ruler is also connected with compass leg by the 4th active pin shaft, the end of described compass leg is socketed with chalk, the end of described first ruler is also fixedly connected with the compasses angle for locating, described second ruler is provided with a sliding tray, described sliding tray is provided with the sliding sleeve that can slide in sliding tray, described sliding sleeve has two, two sliding sleeves are flexibly connected with one end of described 3rd ruler and the 4th ruler respectively, the other end of described 3rd ruler and the 4th ruler is movably connected by the second active pin shaft, and described 3rd ruler, 4th forms mobilizable three-legged structure between ruler and sliding tray, the circle centre position of described protractor is provided with the 3rd active pin shaft, end and the 3rd active pin shaft of described second ruler are hinged, and described 3rd active pin shaft is also fixedly connected with an angle indicator, a side of described second ruler is provided with the handle be made up of elastic cord, described handle is provided with air-vent.
Preferably, described air-vent is provided with 8 to 10, and the equidistant inside being arranged in handle.
Preferably, the first described ruler, the second ruler, the 3rd ruler and the 4th ruler are equipped with scale.
Preferably, described sliding sleeve is provided with the Miniature appliance for measuring angle that an angle is 360 degree.
Compared with prior art, the beneficial effects of the utility model are: this portable multifunctional mathematics teaching aid, easy to use, integrate multi-functional, there is the feature of one-object-many-purposes, and can conveniently impart knowledge to students, the drafting of circle etc. of straight line, various triangle, different-diameter can be realized, the drafting of the various shape of simple realization, reduce the work difficulty of teacher, improve quality of instruction and operating efficiency, simultaneously by the bristle that arranges and small brushes, the wiping to dust in the wiping of blackboard and blackboard can be realized.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1 first ruler, 2 second rulers, 3 sliding trays, 4 second active pin shafts, 5 the 3rd rulers, 6 the 4th rulers, 7 handles, 8 air-vents, 9 sliding sleeves, 10 Miniature appliance for measuring angles, 11 the 3rd active pin shafts, 12 angle indicators, 13 protractors, 14 cavitys, 15 bristles, 16 the 4th active pin shafts, 17 compass legs, 18 chalks, 19 compasses angles, 20 small brushes, 21 first active pin shafts.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the utility model provides a kind of technical scheme: a kind of portable multifunctional mathematics teaching aid, comprise the first ruler 1, second ruler 2, 3rd ruler 5, 4th ruler 6 and protractor 13, first ruler 1 and the second ruler 2 are movably connected by the first active pin shaft 21, the side of the first active pin shaft 21 is installed with small brushes 20, first ruler 1 is provided with the cavity 14 suitable with chalk 18, the side of the first ruler 1 is evenly fixed for the bristle 15 erased the board, first ruler 1 is also connected with compass leg 17 by the 4th active pin shaft 16, the end of compass leg 17 is socketed with chalk 18, the end of the first ruler 1 is also fixedly connected with the compasses angle 19 for locating, second ruler 2 is provided with a sliding tray 3, sliding tray 3 is provided with the sliding sleeve 9 that can slide in sliding tray 3, sliding sleeve 9 is also provided with the Miniature appliance for measuring angle 10 that an angle is 360 degree, sliding sleeve 9 has two, two sliding sleeves 9 are flexibly connected with one end of the 3rd ruler 5 and the 4th ruler 6 respectively, the other end of the 3rd ruler 5 and the 4th ruler 6 is movably connected by the second active pin shaft 4, and the 3rd ruler 5, mobilizable three-legged structure is formed between 4th ruler 6 and sliding tray 3, the circle centre position of protractor 13 is provided with the 3rd active pin shaft 11, end and the 3rd active pin shaft 11 of the second ruler 2 are hinged, 3rd active pin shaft 11 is also fixedly connected with an angle indicator 12, one side of the second ruler 2 is provided with the handle 7 be made up of elastic cord, handle 7 is provided with air-vent 8, air-vent 8 is provided with 8 to 10, and the equidistant inside being arranged in handle 7, first ruler 1, second ruler 2, 3rd ruler 5 and the 4th ruler 6 are equipped with scale.
When this portable multifunctional mathematics teaching aid uses, can by adjusting the position of sliding sleeve 9 and the second active pin shaft 4, the 3rd ruler 5 can be made, 4th ruler 6 and the second ruler 2 form the different triangle of all angles, by adjusting the position of the 3rd active pin shaft, the measurement of protractor 13 pairs of angles can be realized, the reading of angle can be read very well by angle indicator 12, by adjusting the position of the 4th active pin shaft 16, the drafting of different-diameter circle can be realized, by the first ruler 1, second ruler 2, 3rd ruler 5 and the 4th ruler 6 can realize the measurement to straight line angle, this portable multifunctional mathematics teaching aid overall structure is movable structure, simultaneously by having additional handle 7, make it have the feature be convenient for carrying, the religion of this portable multifunctional mathematics can be used for chainage by the assembling growth chi of the first ruler 1 and the second ruler 2, by being provided with bristle 15, bristle 15 is for erasing the board, can by the dust under small brushes 20 sweep-black plate, chalk can be deposited by cavity 14, the utility model structure is simple, easy to use, integrate multi-functional, there is the feature of one-object-many-purposes, and can conveniently impart knowledge to students, straight line can be realized, various triangle, the drafting of the circle of different-diameter etc., the drafting of the various shape of simple realization, reduce the work difficulty of teacher, improve quality of instruction and operating efficiency.
Although illustrate and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and spirit, scope of the present utility model is by claims and equivalents thereof.
Claims (4)
1. a portable multifunctional mathematics teaching aid, comprise the first ruler (1), second ruler (2), 3rd ruler (5), 4th ruler (6) and protractor (13), it is characterized in that: described first ruler (1) and the second ruler (2) are movably connected by the first active pin shaft (21), the side of described first active pin shaft (21) is installed with small brushes (20), described first ruler (1) is provided with the cavity (14) suitable with chalk (18), the side of described first ruler (1) is evenly fixed for the bristle (15) erased the board, described first ruler (1) is also connected with compass leg (17) by the 4th active pin shaft (16), the end of described compass leg (17) is socketed with chalk (18), the end of described first ruler (1) is also fixedly connected with the compasses angle (19) for locating, described second ruler (2) is provided with a sliding tray (3), described sliding tray (3) is provided with the sliding sleeve (9) that can slide in sliding tray (3), described sliding sleeve (9) has two, two sliding sleeves (9) are flexibly connected with one end of described 3rd ruler (5) and the 4th ruler (6) respectively, the other end of described 3rd ruler (5) and the 4th ruler (6) is movably connected by the second active pin shaft (4), and described 3rd ruler (5), mobilizable three-legged structure is formed between 4th ruler (6) and sliding tray (3), the circle centre position of described protractor (13) is provided with the 3rd active pin shaft (11), end and the 3rd active pin shaft (11) of described second ruler (2) are hinged, described 3rd active pin shaft (11) is also fixedly connected with an angle indicator (12), one side of described second ruler (2) is provided with the handle (7) be made up of elastic cord, described handle (7) is provided with air-vent (8).
2. a kind of portable multifunctional mathematics teaching aid according to claim 1, is characterized in that: described air-vent (8) is provided with 8 to 10, and the equidistant inside being arranged in handle (7).
3. a kind of portable multifunctional mathematics teaching aid according to claim 1, is characterized in that: described the first ruler (1), the second ruler (2), the 3rd ruler (5) and the 4th ruler (6) are equipped with scale.
4. a kind of portable multifunctional mathematics teaching aid according to claim 1, is characterized in that: described sliding sleeve (9) is also provided with the Miniature appliance for measuring angle (10) that an angle is 360 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520479438.2U CN204820805U (en) | 2015-07-06 | 2015-07-06 | Multi -functional portable mathematics teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520479438.2U CN204820805U (en) | 2015-07-06 | 2015-07-06 | Multi -functional portable mathematics teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204820805U true CN204820805U (en) | 2015-12-02 |
Family
ID=54678439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520479438.2U Expired - Fee Related CN204820805U (en) | 2015-07-06 | 2015-07-06 | Multi -functional portable mathematics teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204820805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584686A (en) * | 2019-01-21 | 2019-04-05 | 西安外事学院 | Adjustable type geometric figure teaching aid |
-
2015
- 2015-07-06 CN CN201520479438.2U patent/CN204820805U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109584686A (en) * | 2019-01-21 | 2019-04-05 | 西安外事学院 | Adjustable type geometric figure teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20170706 |