CN205736540U - A kind of teaching combination set chi - Google Patents
A kind of teaching combination set chi Download PDFInfo
- Publication number
- CN205736540U CN205736540U CN201620172584.5U CN201620172584U CN205736540U CN 205736540 U CN205736540 U CN 205736540U CN 201620172584 U CN201620172584 U CN 201620172584U CN 205736540 U CN205736540 U CN 205736540U
- Authority
- CN
- China
- Prior art keywords
- set square
- ruler
- hole
- protractor
- chi
- 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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Abstract
The utility model discloses a kind of teaching combination set chi, including set square, ruler, hands handle, protractor and secondary chi, by the second rotating shaft, protractor is installed on the base of described set square, by the first rotating shaft, ruler is installed on the hypotenuse of the side of set square, the inside of described ruler is provided with chute, secondary chi is installed in chute, and secondary chi is fixed with limited block away from one end of ruler, right triangle aperture it is sequentially provided with from top to bottom on the opposite side hypotenuse of described set square, equilateral triangle hole, regular pentagon hole, regular hexagon hole, first circular hole and the second circular hole, the front in the front of described set square is fixed with hands handle, three apex at the back side of set square are all fixed with sucker.This utility model not only has the function of set square, and has the function of protractor and ruler, and simple in construction, it is simple to carry, easy to use, by being provided with handle and sucker on set square, it is simple to the mapping operation of teacher, practical.
Description
Technical field
This utility model relates to teaching aid field, specifically a kind of teaching combination set chi.
Background technology
During mathematical education, particularly geometry, geometric construction is very important in mathematical education
One skill set requirements, so needing commonly used to drawing instrument, teacher say then need class hour to carry many
Planting drawing instrument, existing mathematics drawing teaching instrument mainly has set square, ruler, protractor and circle
Rule, but it is the instrument being used alone, use and carry equal inconvenience.
Summary of the invention
The deficiency existed for above-mentioned prior art, the purpose of this utility model is to provide a kind of teaching group
Trap chi.
To achieve these goals, this utility model be the technical scheme is that
A kind of teaching combination set chi, including set square, ruler, handle, protractor and secondary chi, described
By the second rotating shaft, protractor is installed on the base of set square, by the on the hypotenuse of the side of set square
One rotating shaft is provided with ruler, and the inside of described ruler is provided with chute, is provided with secondary chi, and secondary chi in chute
One end away from ruler is fixed with limited block, and the opposite side hypotenuse of described set square sets the most successively
There are right triangle aperture, equilateral triangle hole, regular pentagon hole, regular hexagon hole, the first circular hole and
Two circular holes, the front in the front of described set square is fixed with handle, three apex at the back side of set square
All it is fixed with sucker.
Further, described protractor is provided with arc groove, and the arc core of arc is heavy with the center of circle of protractor
Close.
Further, described ruler is provided with master calibration, and secondary chi is provided with secondary scale.
Further, the size of the side of described limited block and the side of ruler is equivalently-sized.
Use after technique scheme, this utility model the most advantageously:
Teaching described in the utility model combination set chi, not only has the function of set square, and has
Protractor and the function of ruler, and simple in construction, it is simple to carry, easy to use, by set square
It is provided with handle and sucker, it is simple to the mapping operation of teacher, easy to use, practical.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is structure schematic diagram of the present utility model；
Fig. 3 is ruler structural representation of the present utility model.
In reference: 1-set square；2-ruler；3-handle；4-the first rotating shaft；5-right angled triangle
Hole；6-equilateral triangle hole；7-regular pentagon hole；8-regular hexagon hole；9-the first circular hole；10-the second circle
Hole；11-protractor；12-the second rotating shaft；13-sucker；14-pair chi；15-limited block.
Detailed description of the invention
The following stated is only preferred embodiment of the present utility model, the most therefore limits of the present utility model
Protection domain.
Embodiment, as Figure 1-3, a kind of teaching combination set chi, including set square 1, ruler 2,
Handle 3, protractor 11 and secondary chi 14, by the second rotating shaft 12 amount of being provided with on the base of set square 1
Hornwork 11, protractor 11 is provided with arc groove, and the arc core of arc overlaps with the center of circle of protractor 11,
Being provided with ruler 2 by the first rotating shaft 4 on the hypotenuse of the side of set square 1, the inside of ruler 2 is provided with cunning
Groove, is provided with secondary chi 14 in chute, ruler 2 is provided with master calibration, and secondary chi 14 is provided with secondary scale, and
Secondary chi 14 is fixed with limited block 15, the size of the side of limited block 15 and ruler away from one end of ruler 2
The side of 2 equivalently-sized, the opposite side hypotenuse of set square 1 is sequentially provided with right angled triangle from top to bottom
Hole 5, equilateral triangle hole 6, regular pentagon hole 7, regular hexagon hole the 8, first circular hole 9 and the second circle
Hole 10, the front in the front of set square 1 is fixed with handle 3, three apex at the back side of set square 1
All it is fixed with sucker 13.
Operation principle: during use, the hand-holdable handle of teacher 3 operates, it is possible to by sucker 13 by three
Gusset 1 adsorbs and carries out associative operation on blackboard, when needs carry out angular surveying, by protractor 11 edge
The second rotating shaft 12 and revolve turnback, then carry out angular surveying, when needs carry out linear measure longimetry, will
Ruler 2 rotates to certain position along the first rotating shaft 4, then carries out linear measure longimetry, if ruler 2
Length does not reaches the needs of measurement, then extracted out by pair chi 14, assists to measure, and the length dimension of measurement is equal to
Master calibration reading and secondary scale reading sum, when the less right triangle aperture 5 of the area that needs to paint, positive three
When dihedral hole 6, regular pentagon hole 7, regular hexagon hole the 8, first circular hole 9, the second circular hole 10, then may be used
Carry out assisting drawing by the through hole on set square 1.
It is obvious to a person skilled in the art that this utility model is not limited to above-mentioned one exemplary embodiment
Details, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to other
Concrete form realizes this utility model.Which point therefore, no matter from the point of view of, embodiment all should be regarded as
Exemplary, and be nonrestrictive, scope of the present utility model by claims rather than on
State bright restriction, it is intended that all changes that will fall in the implication of equivalency and scope of claim
Change and include in this utility model.Any reference in claim should be considered as restriction involved
Claim.
The above, preferred embodiment the most of the present utility model, not in order to limit this utility model,
Every according to technical spirit of the present utility model, above example is made any trickle amendment, equivalent replace
Change and improve, within should be included in the protection domain of technical solutions of the utility model.
Claims (2)
- null1. a teaching combination set chi，Including set square (1)、Ruler (2)、Handle (3)、Protractor (11) and secondary chi (14)，It is characterized in that: on the base of described set square (1), by the second rotating shaft (12), protractor (11) is installed，By the first rotating shaft (4), ruler (2) is installed on the hypotenuse of the side of set square (1)，The inside of described ruler (2) is provided with chute，Secondary chi (14) is installed in chute，And secondary chi (14) is fixed with limited block (15) away from one end of ruler (2)，Right triangle aperture (5) it is sequentially provided with from top to bottom on the opposite side hypotenuse of described set square (1)、Equilateral triangle hole (6)、Regular pentagon hole (7)、Regular hexagon hole (8)、First circular hole (9) and the second circular hole (10)，The front of described set square (1) is fixed with handle (3)，Three apex at the back side of set square (1) are all fixed with sucker (13)，Described protractor (11) is provided with arc groove，And the arc core of arc overlaps with the center of circle of protractor (11)，Described ruler (2) is provided with master calibration，Secondary chi (14) is provided with secondary scale.
- A kind of teaching combination set chi the most according to claim 1, it is characterised in that: the size of the side of described limited block (15) is equivalently-sized with the side of ruler (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620172584.5U CN205736540U (en) | 2016-03-07 | 2016-03-07 | A kind of teaching combination set chi |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620172584.5U CN205736540U (en) | 2016-03-07 | 2016-03-07 | A kind of teaching combination set chi |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205736540U true CN205736540U (en) | 2016-11-30 |
Family
ID=57373785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620172584.5U Expired - Fee Related CN205736540U (en) | 2016-03-07 | 2016-03-07 | A kind of teaching combination set chi |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205736540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110757992A (en) * | 2019-11-30 | 2020-02-07 | 温州市文泉文教用品制造有限公司 | Combined ruler set for drawing |
-
2016
- 2016-03-07 CN CN201620172584.5U patent/CN205736540U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110757992A (en) * | 2019-11-30 | 2020-02-07 | 温州市文泉文教用品制造有限公司 | Combined ruler set for drawing |
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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 |
Granted publication date: 20161130 Termination date: 20170307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |