CN208351767U - A kind of teaching determines instrument with position - Google Patents
A kind of teaching determines instrument with position Download PDFInfo
- Publication number
- CN208351767U CN208351767U CN201721219813.5U CN201721219813U CN208351767U CN 208351767 U CN208351767 U CN 208351767U CN 201721219813 U CN201721219813 U CN 201721219813U CN 208351767 U CN208351767 U CN 208351767U
- Authority
- CN
- China
- Prior art keywords
- protractor
- rotary shaft
- orientation stand
- positioning device
- teaching
- 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
Links
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- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a kind of teaching to determine instrument, including protractor, orientation stand, positioning device and rotary shaft with position；Protractor is circle, and marginal surface is provided with equally distributed scale；Orientation stand is in cross, and four arm ends are provided with fixed device；Positioning device includes silk thread and fixed block, and fixed block side wall is provided with groove, and silk thread is wound in the trench；Positioning device, protractor and orientation stand are movably arranged in rotary shaft.Instrument is determined with position using this teaching, can effectively solve the problems, such as that teacher's Freehandhand-drawing direction and angle spend time length, accuracy poor and be excessively abstracted in teaching process.
Description
Technical field
The utility model belongs to teaching aid technical field, and in particular to a kind of teaching determines instrument with position.
Background technique
It always imparts knowledge to students in present primary school teaching about " understanding at angle and the measurement at angle " and " determination of object space "
Emphasis and teaching difficulty.It is not only troublesome in poeration if teacher is with Freehandhand-drawing direction coordinate and angle in teaching process, the time compared with
Slowly, but also it is not accurate enough, teaching function cannot be played well.In addition, Freehandhand-drawing direction and angle are excessively abstract, cannot learn
Concrete concept is established in repiece brain, teaching efficiency is poor.
Utility model content
For the above-mentioned existing prior art, the utility model will solve teacher's Freehandhand-drawing direction and angle in teaching process and spend
Time is long, accuracy is poor and excessively abstract technical problem.
In order to achieve the above object, the technical scheme adopted by the utility model is providing a kind of teaching position determination
Instrument, including protractor, orientation stand, positioning device and rotary shaft；Protractor is circle, and marginal surface is provided with equally distributed
Scale；Orientation stand is in cross, and four arm ends are provided with fixed device；Positioning device includes silk thread and fixed block, fixed block
Side wall is provided with groove, and silk thread is wound in the trench；Positioning device, protractor and orientation stand are movably arranged in rotary shaft.
The beneficial effects of the utility model are: being provided with fixed device there are orientation stand in device on four arm of orientation stand, making
Orientation stand is directly anchored on blackboard by the used time using fixed device, and teacher does not have to Freehandhand-drawing, has saved the plenty of time, teaching effect
Rate improves；Protractor is circle, can measure the arbitrary integer angle within the scope of 0~360 °, students ' understanding angle, measurement angle are more
It is convenient；Due to the presence of protractor, orientation stand can adjust plumbness at any time, ensure that the accuracy that direction is directed toward, teaching
It is more accurate.Positioning device is silk thread and the fixed block connecting with silk thread, and silk thread can rotate around rotary shaft, match with protractor
Conjunction can point out different directions, and the length of silk thread is adjustable, and different length represents different distances, and silk thread is adjusted to close
Right position, which is set, to be fixed with after length with fixed block, at this time the position of fixed block be it needs to be determined that position.It is operated when teaching
Simply, student is very clear, has preferable enlightening and inductivity, can convert the abstract book knowledge of complexity to specifically
, can hands-on life knowledge, deepen the impression that has of student, teaching efficiency is obviously improved.
Based on the above technical solution, the utility model can also do following improvement.
Further, orientation stand is formed by two from ruler with a scale, and two rulers intersect and are movably arranged on institute
It states in rotary shaft.
Beneficial effect using above-mentioned further technical solution is: orientation stand is separately mounted to straight in rotary shaft by two
Ruler composition, two rulers can be rotated respectively around rotary shaft, form the axis of orientation of different angles, meet it is obstructed under the conditions of make
With；From with a scale on ruler, range data can be directly read from above, it is convenient and time-saving.
Further, fixed device and fixed block are flat thin magnet or sucker.
Using the beneficial effect of above-mentioned further technical solution is: fixed device is not in blackboard for flat thin magnet or sucker
When same material can normal use, expand the usage range of the device.
Further, the material of protractor and orientation stand is transparent plastic.
Beneficial effect using above-mentioned further technical solution is: using transparent plastics, will not block sight, especially
It needs to be determined that accurately rotary shaft can be placed at origin when origin, identified position is more accurate.
Further, hollow pad is lined between positioning device, protractor and orientation stand.
Beneficial effect using above-mentioned further technical solution is: it is more convenient laborsaving when rotation, and in rotation process
It will not mutually scrape, the scale on protractor and orientation stand will not be worn, and the service life of device extends.
Further, in rotary shaft be arranged there are two can along rotary shaft be axially moved adapter sleeve, positioning device, protractor and
Orientation stand is movably arranged between the adapter sleeve.
Beneficial effect using above-mentioned further technical solution is: adapter sleeve can be moved along rotary shaft, positioning device, angulation
Relative distance between device and orientation stand is adjustable, keeps these components more flexible in the rotation.Moreover, removing tight
Gu set, can remove protractor and orientation stand, protractor and orientation stand can be used alone, and use scope is further from rotary shaft
Expand.
Detailed description of the invention
Fig. 1 is the main view of the utility model；
Fig. 2 is the bottom view of the utility model；
Wherein, 1, protractor；2, orientation stand；3, fixed device；4, silk thread；5, fixed block；6, adapter sleeve；7, rotary shaft；
8, hollow pad.
Specific embodiment
Specific embodiment of the present utility model is described in detail with reference to the accompanying drawing.
In the embodiments of the present invention, as shown in Fig. 1~2, a kind of teaching is provided with position and determines instrument, including angulation
Device 1, orientation stand 2, positioning device and rotary shaft 7；Protractor 1 is circle, and marginal surface is provided with equally distributed scale；Side
It is in cross to frame 2, four arm ends are provided with fixed device 3；Positioning device includes silk thread 4 and fixed block 5,5 side of fixed block
Wall is provided with groove, and silk thread 4 is wound in the trench；Positioning device, protractor 1 and orientation stand 2 are movably arranged on the rotary shaft 7
On.
Orientation stand 2 is in cross when in use.Criss-cross orientation stand 2 carry it is very inconvenient, and it is on the shelf when
Much room can be occupied.Therefore the ruler that orientation stand 2 can be collapsed by two forms, and two rulers intersect and activity installation
In the rotary shaft 7.Two rulers can be rotated around rotary shaft 7 alone, and the angle between them can be 0~90 ° of range
Interior random angle.The surface of two rulers is provided with scale, when gathering, orientation stand is in linear type, can be as long ruler
It uses.
Fixed device 3 and fixed block 5 are flat thin magnet or sucker, to meet the requirement under different condition.In addition, in order to
Facilitate child to recognize direction, " east, south, west, north " four direction can be engraved clockwise on four arms of orientation stand 2.Angulation
Device 1 and orientation stand 2 are made of transparent plastic, using that will not block sight, accurately rotary shaft can be placed at origin, institute
Determining position is more accurate.
The length of silk thread 4 indicates that distance is provided with scale on the surface of silk thread 4 to save the trouble of linear measure longimetry.?
Adapter sleeve 6 is additionally provided in rotary shaft 7, adapter sleeve 6 can be moved along rotary shaft 7, positioning device, protractor 1 and orientation stand 2 it
Between relative distance it is adjustable, keep these components more flexible in the rotation.Moreover, removing adapter sleeve, can will measure
Angle device and orientation stand are removed from rotary shaft, and protractor and orientation stand can be used alone, use scope further expansion.
The working principle of the utility model are as follows: unclamp adapter sleeve 6, adjustment direction frame 2 makes its horizontal and vertical direction difference
It is directed at the horizontal line and vertical line of protractor 1, then compression adapter sleeve 6, the relative position of fixed-direction frame 2 and protractor 1, then
Orientation stand 2 is fixed on the origin determined using the fixation device being arranged on 2 four arm of orientation stand, is rotated around rotary shaft 7
Positioning device determines final position by the angle of precalculated length.
Although being described in detail in conjunction with attached drawing to specific embodiment of the present utility model, should not be construed as pair
The restriction of the protection scope of this patent.In range described by claims, those skilled in the art are without creative labor
The dynamic various modifications that can be made and deformation still belong to the protection scope of this patent.
Claims (6)
1. a kind of teaching determines instrument with position, it is characterized in that: including protractor (1), orientation stand (2), positioning device and rotary shaft
(7)；The protractor (1) is circle, and marginal surface is provided with equally distributed scale；The orientation stand (2) is in cross,
Its four arms end is provided with fixed device (3)；The positioning device includes silk thread (4) and fixed block (5), the fixed block (5)
Side wall is provided with groove, and in the groove, silk thread (4) surface is provided with scale for silk thread (4) winding；The positioning
Device, protractor (1) and orientation stand (2) are movably arranged on the rotary shaft (7).
2. teaching according to claim 1 determines instrument with position, it is characterized in that: the orientation stand (2) is by two included quarters
The ruler of degree forms, and two rulers intersect and are movably arranged on the rotary shaft (7).
3. teaching according to claim 1 determines instrument with position, it is characterized in that: the fixed device (3) and fixed block (5)
For flat thin magnet or sucker.
4. teaching according to claim 1 determines instrument with position, it is characterized in that: the protractor (1) and the orientation stand
(2) material is transparent plastic.
5. teaching according to claim 1 determines instrument with position, it is characterized in that: the positioning device, protractor (1) and side
To being lined with hollow pad (8) between frame (2).
6. teaching according to claim 1 determines instrument with position, it is characterized in that: in the rotary shaft (7) there are two settings
The adapter sleeve (6) that can be axially moved along rotary shaft (7), the positioning device, protractor (1) and orientation stand (2) are movably arranged on
Between the adapter sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219813.5U CN208351767U (en) | 2017-09-21 | 2017-09-21 | A kind of teaching determines instrument with position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219813.5U CN208351767U (en) | 2017-09-21 | 2017-09-21 | A kind of teaching determines instrument with position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208351767U true CN208351767U (en) | 2019-01-08 |
Family
ID=64874496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721219813.5U Expired - Fee Related CN208351767U (en) | 2017-09-21 | 2017-09-21 | A kind of teaching determines instrument with position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208351767U (en) |
-
2017
- 2017-09-21 CN CN201721219813.5U patent/CN208351767U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20190921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |