CN206421702U - A kind of mathematics quadrangle teaching aid - Google Patents
A kind of mathematics quadrangle teaching aid Download PDFInfo
- Publication number
- CN206421702U CN206421702U CN201621343479.XU CN201621343479U CN206421702U CN 206421702 U CN206421702 U CN 206421702U CN 201621343479 U CN201621343479 U CN 201621343479U CN 206421702 U CN206421702 U CN 206421702U
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- CN
- China
- Prior art keywords
- long
- chi
- short side
- side set
- quadrangle
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- 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.)
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Abstract
The utility model discloses a kind of mathematics quadrangle teaching aid, including the first long side chi, second long side chi, described first it is long be provided with outside chi first it is long while cover, the first long side set is internally provided with neck, the first long side set top is provided with the first short side set, the first long side set bottom is provided with protractor, the first short side set is internally provided with the first short side chi, the first short side ruler end part is provided with the second long side set, described second it is long while set in be provided with described second it is long while chi, the junction of the first short side chi and the described second long side set is provided with pin, the second long side ruler end part is provided with the second short side chi, the second short side set is provided with outside the second short side chi, the second short side set end is provided with rivet.Beneficial effect is：Stored collapsed after can splitting, reduces the occupancy in space, and facilitates the measurement and control of angle, the convenient side for understanding quadrangle, angle characteristic, and then is conducive to using during teaching.
Description
Technical field
The utility model is related to teaching aid field, more particularly to a kind of mathematics quadrangle teaching aid.
Background technology
Triangle, quadrangle are common figures inside mathematics, for convenience student understand these shapes construction and
Characteristic using special teaching aid, it is necessary to be explained.The four edges of traditional quadrangle teaching aid are to fix dead, no
Convenient use.The Chinese patent of Application No. 200720188504.6, discloses a kind of teaching aid of special quadrilateral, including
Four while chi, while chi set and two to angle square, to angle square set, it is described to constitute outside in chi set when the insertion of chi one end is described,
Four outside ends are flexibly connected quadrangularly by rivet, described that angle square is constituted in opposite directions by two in half chi of " 7 " font,
Half chi insertion elongated segment medial surface to angle square set and half chi is rack；The axis midpoint of two pairs of angle squares set is mutually overlapping
Close, through two pairs of angle square sets and gear is installed with each pair of angle square covers provided with rivet in the overlapping position.Meeting during above-mentioned patent storage
Larger space is taken, and the size of angle is also not easy measurement between adjacent two edges, is used so as to be inconvenient to impart knowledge to students.
Utility model content
The purpose of this utility model is that provides a kind of mathematics quadrangle teaching aid to solve the above problems.
The utility model is achieved through the following technical solutions above-mentioned purpose：
Outside a kind of mathematics quadrangle teaching aid, including the first long side chi, the second long side chi, the first long side chi
The first long side set is provided with, the first long side set is internally provided with neck, and it is short that the first long side set top is provided with first
Side covers, and the first long side set bottom is provided with protractor, and the first short side set is internally provided with the first short side chi, and described the
One short side ruler end part is provided with the second long side set, described second it is long be provided with set described second it is long while chi, described first is short
The junction covered when chi is long with described second is provided with pin, and the second long side ruler end part is provided with the second short side chi, institute
State and the second short side set is provided with outside the second short side chi, the second short side set end is provided with rivet, the first short side chi
Back is provided with stopper slot, the stopper slot and is provided with stop screw.
Further, the first short side set, the second short side set, described first it is long while set, it is described second it is long while cover
Inside is provided with the neck, the first short side set, the second short side set, the first long side set, second length
Side set upper surface is provided with the opening of the neck connection.
Further, the protractor is separately fixed at the first short side set by rivet and the described first long side set connects
Place, second short side set and the first long side chi junction are connect, the protractor can carry out 360 ° around the rivet
Rotate, fixed between the second long side chi and the second short side chi again by the rivet.
Further, the protractor is made using transparent plastic.
Further, the first short side set, the second short side set, described first it is long while set, it is described second it is long while cover,
The first short side chi, the second short side chi, described first it is long in chi, it is described second it is long while chi upper surface be provided with quarter
Degree.
Further, the stopper slot is molded over the first short side set, the second short side set, the first long side
The back side of set, the second long side set, the stop screw is out of described stopper slot through later described by being threadably mounted at
First short side chi, the second short side chi, described first it is long in chi, it is described second it is long while chi the back side.
Further, the pin is press-button type structure, and the pin is arranged on described first by detachable connection
The junction of short side chi and the described second long side set.
The beneficial effects of the utility model are：Stored collapsed after can splitting, reduces the occupancy in space, and facilitates angle
The measurement and control of degree, the convenient side for understanding quadrangle, angle characteristic, and then be conducive to using during teaching.
Brief description of the drawings
Fig. 1 is a kind of space multistory view of mathematics quadrangle teaching aid described in the utility model；
Fig. 2 is a kind of back structures sketch of mathematics quadrangle teaching aid described in the utility model.
Description of reference numerals is as follows：
1st, the first long side chi；2nd, neck；3rd, the first long side set；4th, protractor；5th, the first short side set；6th, the first short side chi；
7th, pin；8th, the second long side set；9th, the second long side chi；10th, the second short side chi；11st, the second short side set；12nd, stop screw；13、
Stopper slot；14th, rivet.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As Figure 1-Figure 2, a kind of mathematics quadrangle teaching aid, including the first long side chi 1, the second long side chi 9, the
One it is long be provided with outside chi 1 first it is long while cover 3, the first long side set 3 is internally provided with neck 2, and the first long side covers 3 tops and set
There is the first short side to cover 5, the first long side covers 3 bottoms and is provided with protractor 4, and the first short side set 5 is internally provided with the first short side chi 6,
The end of first short side chi 6 is provided with the second long side set 8, second it is long while cover be provided with 8 second it is long while chi 9, the first short side chi 6 with
The junction of second long side set 8 is provided with pin 7, and the second long end of side chi 9 is provided with the second short side chi 10, the second short side chi 10
Outside is provided with the second short side set 11, and the second short side covers 11 ends and is provided with rivet 14, and the back of the first short side chi 6 sets limited location
Stop screw 12 is provided with groove 13, stopper slot 13.
In said structure, stop screw 12 is unclamped, the length of quadrangle four edges is adjusted according to graduated scale, passes through angulation
Device 4 determines the number of degrees at each angle, is allowed to be deformed into the quadrangle of needs, such as positive square, rectangle, parallelogram, trapezoidal, water chestnut
Shape, trapezium etc., then study the influence of the length of side, the change of angle to quadrangle, it is not necessary in use, unloading pin
7, the first short side cover the 5, second short side set 11, first it is long while cover 3, second it is long while cover 8 and folds up storage, reduction space is accounted for
With.
Further, the first short side covers long covered when set 3, second is long of the 5, second short side set 11, first and is provided with inside 8
Neck 2, the first short side covers long 8 upper surfaces that covered when set 3, second is long of the 5, second short side set 11, first and is provided with the connection of neck 2
Opening, protractor 4 is separately fixed at the long side of the first short side set 5 and first by rivet 14 and covers 3 junctions, 11 and of the second short side set
The first long junction of side chi 1, protractor 4 can carry out 360 ° of rotations, the second long short side chi 10 of side chi 9 and second around rivet 14
Between fixed again by rivet 14, protractor 4 is made using transparent plastic, the first short side cover the 5, second short side set 11, first
It is long while cover 3, second it is long while to cover the 8, first short side chi 6, second the 10, first long upper surface of chi 9 when chi 1, second is long of short side chi equal
Be provided with scale, stopper slot 13 be molded over the first short side cover the 5, second short side cover 11, first it is long while cover 3, second it is long while cover 8 the back of the body
Face, stop screw 12 is out of stopper slot 13 through later by being threadably mounted at the first short side chi 6, the second short side chi 10, first
The back side of the long chi 9 when chi 1, second is long, pin 7 is press-button type structure, and it is short that pin 7 is arranged on first by detachable connection
Covered when chi 6 and second is long 8 junction.
General principle of the present utility model, principal character and advantage has been shown and described above.The technical staff of the industry
It should be appreciated that the utility model is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally
The principle of utility model, on the premise of the utility model spirit and scope are not departed from, the utility model also has various change
And improvement, these changes and improvements are both fallen within the range of claimed the utility model.Scope is claimed in the utility model
Defined by appended claims and its effect thing.
Claims (7)
1. a kind of mathematics quadrangle teaching aid, it is characterised in that：Including the first long side chi, the second long side chi, described first
It is long be provided with outside chi first it is long while cover, the first long side set is internally provided with neck, and the first long side set top is set
The first short side set is equipped with, the first long side set bottom is provided with protractor, and it is short that the first short side set is internally provided with first
Side chi, the first short side ruler end part is provided with the second long side set, described second it is long be provided with set described second it is long while chi,
The junction of the first short side chi and the described second long side set is provided with pin, and the second long side ruler end part is provided with second
It is provided with the second short side set outside short side chi, the second short side chi, the second short side set end is provided with rivet, described the
One short side chi back, which is provided with stopper slot, the stopper slot, is provided with stop screw.
2. a kind of mathematics quadrangle teaching aid according to claim 1, it is characterised in that：The first short side set,
The second short side set, described first it is long while set, it is described second it is long while cover inside be provided with the neck, first short side
Set, the second short side set, described first it is long in set, it is described second it is long while cover that upper surface is provided with that the neck connects open
Mouthful.
3. a kind of mathematics quadrangle teaching aid according to claim 1, it is characterised in that：The protractor passes through riveting
Nail be separately fixed at first short side set and described first it is long while cover junction, second short side set and it is described first it is long while
Chi junction, the protractor can carry out 360 ° of rotations, the second long side chi and second short side around the rivet
Fixed between chi again by the rivet.
4. a kind of mathematics quadrangle teaching aid according to claim 1, it is characterised in that：The protractor uses saturating
Bright plastics are made.
5. a kind of mathematics quadrangle teaching aid according to claim 1, it is characterised in that：The first short side set,
The second short side set, described first it is long while set, it is described second it is long while cover, the first short side chi, the second short side chi, institute
State first it is long in chi, it is described second it is long while chi upper surface be provided with scale.
6. a kind of mathematics quadrangle teaching aid according to claim 1, it is characterised in that：The stopper slot is molded over
The first short side set, the second short side set, described first it is long in set, it is described second it is long while the back side that covers, the spacing spiral shell
Nail is out of described stopper slot through later by being threadably mounted at the first short side chi, the second short side chi, described first
It is long in chi, it is described second it is long while chi the back side.
7. a kind of mathematics quadrangle teaching aid according to claim 1, it is characterised in that：The pin is press-button type
Structure, the pin is arranged on the junction that the first short side chi covers with the described second long side by detachable connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621343479.XU CN206421702U (en) | 2016-12-08 | 2016-12-08 | A kind of mathematics quadrangle teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621343479.XU CN206421702U (en) | 2016-12-08 | 2016-12-08 | A kind of mathematics quadrangle teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206421702U true CN206421702U (en) | 2017-08-18 |
Family
ID=59575697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621343479.XU Expired - Fee Related CN206421702U (en) | 2016-12-08 | 2016-12-08 | A kind of mathematics quadrangle teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206421702U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200007357A (en) * | 2018-07-13 | 2020-01-22 | 이우상 | Resultant force display device |
-
2016
- 2016-12-08 CN CN201621343479.XU patent/CN206421702U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200007357A (en) * | 2018-07-13 | 2020-01-22 | 이우상 | Resultant force display device |
| KR102139290B1 (en) | 2018-07-13 | 2020-07-29 | 이우상 | Resultant force display device |
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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: 20170818 Termination date: 20181208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |