CN108749413A - A kind of multifunctional mathmatical schooling apparatus - Google Patents
A kind of multifunctional mathmatical schooling apparatus Download PDFInfo
- Publication number
- CN108749413A CN108749413A CN201810619044.0A CN201810619044A CN108749413A CN 108749413 A CN108749413 A CN 108749413A CN 201810619044 A CN201810619044 A CN 201810619044A CN 108749413 A CN108749413 A CN 108749413A
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- Prior art keywords
- long ruler
- cylinder
- ruler
- long
- schooling apparatus
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- 239000000463 material Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L7/00—Straightedges
- B43L7/10—Plural straightedges relatively movable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/02—Compasses
Abstract
The invention belongs to study article technical fields,More particularly to a kind of multifunctional mathmatical schooling apparatus,Including the first long ruler,Second long ruler and hinge,One end of first long ruler is connected with cylinder,Cylindrical thread is connected with nut,Cylinder is fixedly connected there are four shrapnel,First long ulnar surface is equipped with the first fixing bolt and the first long ruler scale,First long ruler is fixedly connected with hinge,Hinge is fixedly connected with the second long ruler,Second long ruler side is equipped with the second long ruler scale,Second long ruler is connected with bevel protractor,Bevel protractor is equipped with angle index and arc groove,The side of second long ruler is equipped with card slot,Card slot is connected with axis pin,The threaded one end of axis pin is connected with lock nut,Axis pin is connected with the connection convex block to match with card slot,Connection convex block is connected with connecting rod,Connecting rod is connected with bearing,Bearing is connected with cylinder,Cylinder is connected with pilot pin and sucker.The present invention not only serves many purposes, in order to which teacher provides facility, moreover it is possible to prevent damage blackboard.
Description
Technical field
The invention belongs to study article technical fields, and in particular to a kind of multifunctional mathmatical schooling apparatus.
Background technology
The auxiliary tool used for enhancing teaching efficiency when teaching aid is teachers.Teaching aid is teachers
When for the auxiliary tool that uses of enhancing teaching efficiency.Teaching of use tool can allow student that can intuitively, visually understand teaching
Content can be improved the learning interest of student, enrich perceptual knowledge, and help forms specific concept, the observation ability of Developing Students '
And thinking ability.Generally divide common teaching aid, special teaching aid, 3 class of Teachig-aid for infant studying.Common teaching aid include middle and primary schools' basic education and
Greatly, conventional and professional teaching aid used in all kinds of specialized educations of special secondary school, such as tellurion, projecting apparatus.Special teaching aid generally refers to
The disabled persons and mentally retarded child etc. such as example blind to special education object, deaf, mute carry out special implement used of imparting knowledge to students, as blind person's plate,
Scotograph etc..Teachig-aid for infant studying is toy, intellectual development articles for use used in preschool child's formative education, can develop child's
Locomitivity, its consciousness of training, excites its imagination, arouses its curiosity, such as meccano, structural model.Present mathematics
When teachers ' teaching and student need to draw, need to carry and use the multiple types of tools such as set square, compasses, it is inconvenient, and
In blackboard upper drawing circle, using common educational compasses, not only chalk is broken often, but also compass foot pilot pin is easy to do using draw point
Bad blackboard.
Invention content
The purpose of the present invention is：It is intended to provide a kind of multifunctional mathmatical schooling apparatus, is not only served many purposes, in order to old
Teacher provides facility, moreover it is possible to prevent damage blackboard.
To realize the above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
A kind of multifunctional mathmatical schooling apparatus, including the first long ruler, the second long ruler and hinge, one end connection of the first long ruler
There are cylinder, the cylindrical thread to be connected with nut, the cylinder is fixedly connected there are four shrapnel, and the shrapnel end is equipped with sector
Convex block, the first long ulnar surface are equipped with the first fixing bolt and the first long ruler scale, and the first long ruler is fixed with hinge to be connected
It connects, the hinge connection has several dormant bolts, the first long ruler to be fixed by dormant bolt with hinge, the second long ruler
It is fixed by dormant bolt with hinge, the second long ruler side is equipped with the second long ruler scale, and the second long ruler is connected with solid
Determine bolt and fixed link, the second long ruler is fixedly connected with bevel protractor by fixing bolt and fixed link, and the bevel protractor is set
Angled scale and arc groove, the arc groove match with the first fixing bolt, and the side of the second long ruler is equipped with card slot,
The card slot is connected with axis pin, and the threaded one end of the axis pin is connected with lock nut, and the axis pin is connected with and card slot phase
The connection convex block matched, the connection convex block are connected with connecting rod, and the connecting rod is connected with bearing, and the bearing is connected with circle
Cylinder, the cylinder bore are equipped with spring, and the spring is connected with rounded stops, and the rounded stops are fixedly connected with pilot pin,
The cylinder is threaded with round barrel cover, and the round barrel cover is fixedly connected with sucker, and the round barrel cover is equipped with and pilot pin phase
The through-hole matched.
Hinge is stretched, the first long ruler and the second long ruler angle using technical solution of the present invention when needing using ruler
180 ° are stretched as, the first long ruler is bonded formation one with the second long ruler end face long ruler completely, and teacher can use hand steered firmly bevel protractor,
Multifunctional mathmatical schooling apparatus is fixed on blackboard and carries out picture straight line；When needing picture bowlder, between chalk is put into shrapnel, to
Lower rotating nuts keep shrapnel close to center, and fan-shaped bump clamps chalk, and the center of circle is accurately positioned using pilot pin, and pushing sucker makes
It is adsorbed on blackboard, pilot pin retracts cylinder, and cylinder is made to be fixed on blackboard, unclamps lock nut, adjusts the second long ruler and company
Then angle between extension bar tightens lock nut, ensure that cylinder perpendicular in blackboard, prevents sucker from falling off, it is solid to unclamp first
Determine bolt, adjust angle between the first long ruler and the second long ruler, then tighten the first fixing bolt, determines the radius of circle, use hand
Bevel protractor is buttressed, the center of circle is fixed, and by bearing, multifunctional mathmatical schooling apparatus is rotated around the center of circle, passes through the fixed powder of shrapnel
Stroke goes out circle；When needing the fixed angle of picture, the first fixing bolt is unclamped, the first long ruler and second is adjusted according to angle index
Angle between long ruler, tightens the first fixing bolt, and such first long ruler and the second long ruler just can form fixed angle.
It further limits, the first long ruler is equipped with the first boss to match with bevel protractor, and the second long ruler is equipped with
The second boss to match with bevel protractor.In this way, bevel protractor is avoided to be in direct contact with the second long ruler, avoids repeatedly rubbing and cause the
The abrasion of two long ruler scales.
It further limits, the second boss is equipped with ball, and the bevel protractor back side is equipped with the arc to match with ball
Groove.In this way, reducing the frictional force of bevel protractor and second boss, keep the movement between the first long ruler and the second long ruler more suitable
Freely.
It further limits, the pilot pin is rubber material.In this way, avoiding when using pilot pin positioning centre, damage
Blackboard.
It further limits, is sealed between the round barrel cover and cylinder, the elastic force of the spring is less than the suction of sucker.This
Sample, what guarantee sucker can consolidate is adsorbed on blackboard.
It further limits, the first long ruler is equipped with the second lock buckling groove, and the second long ruler is equipped with turn buckle and the first lock
Catching groove, the turn buckle are connected with resilient strip, and described resilient strip one end is equipped with lock, the lock and the first lock buckling groove and second
Lock buckling groove matches.When needing using ruler, the first long ruler is stretched to end face with the second long ruler and is bonded, by lock and the second lock
Catching groove cooperation fix, so that the first long ruler is fixed with the second long ruler, when lock need not be used, rotating elastic item, will lock and
First lock buckling groove coordinates, in this way, lock fixation is avoided interference with.
It further limits, the cylinder is threadedly coupled with the first long ruler, and through-hole is equipped among the cylinder.In this way, not only
The length of chalk stretching can be adjusted can also remove cylinder when chalk breaks in cylinder, facilitate and take out disconnected chalk end.
It further limits, the sucker color is transparent.As such, it is desirable to when using pilot pin positioning centre, sight can be facilitated
It examines.
It further limits, the hinge is set there are two blade, and two blades are embedded in the first long ruler and the second length
Inside ruler.In this way, the first long ruler and the second long ruler can be bonded as shown in the figure, the interference generated by hinge is avoided.
It further limits, the first long ruler scale and the second long ruler scale minimum scale are 10mm, the angle index
Minimum scale is 15 °.In this way, teacher can draw common angle and length through the invention.
Beneficial effects of the present invention：
1, teacher and student can not only draw circle using multifunctional mathmatical schooling apparatus, moreover it is possible to draw accurate angle and straight length；
2, since the first long ruler and the second long ruler angle are stretched as 180 °, the first long ruler is bonded completely with the second long ruler end face, the
The side of one long ruler and the second long ruler forms a plane completely, and the straight line drawn does not have bending and the case where broken line occurs,
The linear precision drawn is higher；
3, teacher can mitigate the burden of teacher using multifunctional mathmatical schooling apparatus to avoid a variety of educational aids are taken when attending class；
4, multifunctional mathmatical schooling apparatus can be accurately positioned the center of circle, and keep the rotation of picture bowlder more smooth using bearing, keep away
Exempt from center of circle sideslip；
5, multifunctional mathmatical schooling apparatus when drawing circle, by rubber material made, and will not damage blackboard by pilot pin；
6, multifunctional mathmatical schooling apparatus uses gasket and ball, not only reduces friction, also avoids, because of prolonged use, making
Graduation mark is worn.
Description of the drawings
The present invention can be further illustrated by the nonlimiting examples that attached drawing provides；
Fig. 1 is a kind of structural schematic diagram of multifunctional mathmatical schooling apparatus of the embodiment of the present invention；
Fig. 2 is a kind of another structural schematic diagram of multifunctional mathmatical schooling apparatus of the embodiment of the present invention；
Fig. 3 is the connection structure of cylinder, spring, sucker and pilot pin in a kind of multifunctional mathmatical schooling apparatus of the embodiment of the present invention
Schematic diagram；
Fig. 4 is the connection knot of hinge, the first long ruler and the second long ruler in a kind of multifunctional mathmatical schooling apparatus of the embodiment of the present invention
Structure schematic diagram；
Fig. 5 is the connection knot of cylinder, nut, shrapnel and fan-shaped bump in a kind of multifunctional mathmatical schooling apparatus of the embodiment of the present invention
Structure schematic diagram；
Main element symbol description is as follows：
First long ruler 1, the first fixing bolt 11, the first long ruler scale 12, the second lock buckling groove 13, the second long ruler 2, lock nut
21, the second long ruler scale 22, fixing bolt 23, angle index 24, arc groove 25, bevel protractor 26, fixed link 27, resilient strip 28,
First lock buckling groove 29, hinge 3, dormant bolt 31, blade 32, cylinder 4, nut 41, shrapnel 42, fan-shaped bump 43, connecting rod 5,
Connect convex block 51, cylinder 6, spring 61, round barrel cover 62, rounded stops 63, sucker 64, pilot pin 65, bearing 7.
Specific implementation mode
In order to make those skilled in the art that the present invention may be better understood, with reference to the accompanying drawings and examples to this hair
Bright technical solution further illustrates.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, a kind of multifunctional mathmatical schooling apparatus of the invention, including the first length
One end of ruler 1, the second long ruler 2 and hinge 3, the first long ruler 1 is connected with cylinder 4, and cylinder 4 is threaded with nut 41, and cylinder 4 is solid
There are four shrapnel 42,42 end of shrapnel is equipped with fan-shaped bump 43 for fixed connection, and 1 side of the first long ruler is equipped with 11 He of the first fixing bolt
First long ruler scale 12, the first long ruler 1 are fixedly connected with hinge 3, and hinge 3 is connected with several dormant bolts 31, the first long ruler 1 with
Hinge 3 is fixed by dormant bolt 31, and the second long ruler 2 is fixed with hinge 3 by dormant bolt 31, and 2 side of the second long ruler is equipped with
Second long ruler scale 22, the second long ruler 2 are connected with fixing bolt 23 and fixed link 27, and the second long ruler 2 passes through 23 He of fixing bolt
Fixed link 27 is fixedly connected with bevel protractor 26, and bevel protractor 26 is equipped with angle index 24 and arc groove 25, and arc groove 25 and first is solid
Determine bolt 11 to match, the side of the second long ruler 2 is equipped with card slot, and card slot is connected with axis pin, and the threaded one end of axis pin is connected with lock
Tight nut 21, axis pin are connected with the connection convex block 51 to match with card slot, and connection convex block 51 is connected with connecting rod 5, and connecting rod 5 connects
It is connected to bearing 7, bearing 7 is connected with cylinder 6, and 6 inner cavity of cylinder is equipped with spring 61, and spring 61 is connected with rounded stops 63, circle gear
Block 63 is fixedly connected with pilot pin 65, and cylinder 6 is threaded with round barrel cover 62, and round barrel cover 62 is fixedly connected with sucker 64, cylinder
Lid 62 is equipped with the through-hole to match with pilot pin 65.
Hinge 3 is stretched, the first long ruler 1 and the second long ruler 2 using technical solution of the present invention when needing using ruler
Angle is stretched as 180 °, and the first long ruler 1 is bonded formation one with 2 end face of the second long ruler long ruler completely, teacher can with it is hand steered firmly
Multifunctional mathmatical schooling apparatus is fixed on blackboard and carries out picture straight line by bevel protractor 26；When needing picture bowlder, chalk is put into bullet
Between piece 42, being rotated down nut 41 keeps shrapnel 42 close to center, and fan-shaped bump 43 clamps chalk, accurate using pilot pin 65
Positioning centre, pushing sucker 64 makes to be adsorbed on blackboard, and pilot pin 65 retracts cylinder 6, and cylinder 6 is made to be fixed on blackboard, unclamps
Lock nut 21 adjusts the angle between the second long ruler 2 and connecting rod 5, then tightens lock nut 21, ensures that cylinder 6 is vertical
It in blackboard, prevents sucker 64 from falling off, unclamps the first fixing bolt 11, adjust angle between the first long ruler 1 and the second long ruler 2,
Then the first fixing bolt 11 is tightened, determines the radius of circle, with hand steered firmly bevel protractor 26, the center of circle is fixed, by bearing 7, more work(
Energy mathematics teaching instrument is rotated around the center of circle, and circle is drawn by 42 fixed chalk of shrapnel；When needing the fixed angle of picture, pine
The first fixing bolt 11 is opened, the angle between the first long ruler 1 and the second long ruler 2 is adjusted according to angle index 24, it is solid to tighten first
Determine bolt 11,1 and second long ruler 2 of such first long ruler just can form fixed angle.
It is preferred that the first long ruler 1 is equipped with the first boss to match with bevel protractor 26, the second long ruler 2 is equipped with and 26 phase of bevel protractor
Matched second boss.In this way, bevel protractor 26 is avoided to be in direct contact with the second long ruler 2, avoids repeatedly rubbing and cause the second long ruler
The abrasion of scale 22.In fact, can also consider to avoid repeatedly rubbing using other structures as the case may be to cause the second length
The abrasion of ruler scale 22.
It is preferred that second boss is equipped with ball, 26 back side of bevel protractor is equipped with the arc groove to match with ball.In this way, reducing
The frictional force of bevel protractor 26 and second boss keeps the movement between the first long ruler 1 and the second long ruler 2 more smooth.In fact,
The frictional force using other structures reduction rate ruler cylinder 26 cylinder and second boss can be considered as the case may be.
Preferred orientation needle 65 is rubber material.In this way, avoiding when using 65 positioning centre of pilot pin, damaging blackboard.It is real
On border, it can also consider that pilot pin 65 uses other materials as the case may be, prevent pilot pin 65 from damaging blackboard.
It is sealed between preferably drum lid 62 and cylinder 6, the elastic force of spring 61 is less than the suction of sucker 64.In this way, ensureing to inhale
What disk 64 can consolidate is adsorbed on blackboard.In fact, can also consider the elastic force and sucker 64 of spring 61 as the case may be
Suction occurrence.
It is preferred that the first long ruler 1 is equipped with the second lock buckling groove 13, the second long ruler 2 is equipped with turn buckle and the first lock buckling groove 29, rotation
Button is connected with resilient strip 28, and 28 one end of resilient strip is equipped with lock, and lock matches with the first lock buckling groove 29 and the second lock buckling groove 13.
When needing using ruler, the first long ruler 1 is stretched to end face with the second long ruler 2 and is bonded, and lock is coordinated with the second lock buckling groove 13
It is fixed, so that the first long ruler 1 and the second long ruler 2 is fixed, when lock need not be used, rotating elastic item 28, by lock and first
Lock buckling groove 29 coordinates, in this way, lock fixation is avoided interference with.In fact, can also consider to use other knots as the case may be
Structure makes the first long ruler 1 and the second long ruler 2 fix.
It is preferred that cylinder 4 is threadedly coupled with the first long ruler 1, through-hole is equipped among cylinder 4.It is stretched in this way, chalk can not only be adjusted
The length gone out can also remove cylinder 4 when chalk breaks in cylinder 4, facilitate and take out disconnected chalk end.In fact, can also root
The other structures of cylinder 4 are considered according to concrete condition.
It is preferred that 64 color of sucker is transparent.As such, it is desirable to when using 65 positioning centre of pilot pin, observation can be facilitated.It is practical
On, it can also consider that the other structures of sucker 64 make to be convenient for 65 positioning centre of pilot pin as the case may be.
Preferred hinge 3 is set there are two blade 32, and two blades 32 are embedded in inside the first long ruler 1 and the second long ruler 2.This
Sample, the first long ruler 1 and the second long ruler 2 can be bonded as shown in Figure 2, avoid the interference generated by hinge 3.In fact, also may be used
To consider the mated condition between hinge 3 and the first long ruler 1 and the second long ruler 2 as the case may be.
It is preferred that 12 and second long 12 minimum scale of ruler scale of the first long ruler scale is 10mm, 24 minimum scale of angle index is
15°.In this way, teacher can draw common angle and length through the invention.In fact, can also consider as the case may be
Use other scale sizes of the first long ruler scale 12, the second long ruler scale 12 and angle index 24.
Above-described embodiment is merely exemplary to illustrate the principle of the present invention and its effect, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology can all carry out modifications and changes to above-described embodiment without violating the spirit and scope of the present invention.Cause
This, all those of ordinary skill in the art are completed without departing from the spirit and technical ideas disclosed in the present invention
All equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of multifunctional mathmatical schooling apparatus, including the first long ruler（1）, the second long ruler（2）And hinge（3）, it is characterised in that：
The first long ruler（1）One end be connected with cylinder（4）, the cylinder（4）It is threaded with nut（41）, the cylinder（4）
Shrapnel there are four being fixedly connected（42）, the shrapnel（42）End is equipped with fan-shaped bump（43）, the first long ruler（1）Side is set
There is the first fixing bolt（11）With the first long ruler scale（12）, the first long ruler（1）With hinge（3）It is fixedly connected, the hinge
Chain（3）It is connected with several dormant bolts（31）, the first long ruler（1）With hinge（3）Pass through dormant bolt（31）It is fixed, it is described
Second long ruler（2）With hinge（3）Pass through dormant bolt（31）It is fixed, the second long ruler（2）Side is equipped with the second long ruler scale
（22）, the second long ruler（2）It is connected with fixing bolt（23）And fixed link（27）, the second long ruler（2）Pass through fixed spiral shell
Bolt（23）And fixed link（27）It is fixedly connected with bevel protractor（26）, the bevel protractor（26）Equipped with angle index（24）And arc groove
（25）, the arc groove（25）With the first fixing bolt（11）Match, the second long ruler（2）Side be equipped with card slot, institute
It states card slot and is connected with axis pin, the threaded one end of the axis pin is connected with lock nut（21）, the axis pin is connected with and card slot phase
Matched connection convex block（51）, the connection convex block（51）It is connected with connecting rod（5）, the connecting rod（5）It is connected with bearing
（7）, the bearing（7）It is connected with cylinder（6）, the cylinder（6）Inner cavity is equipped with spring（61）, the spring（61）It is connected with circle
Shape block（63）, the rounded stops（63）It is fixedly connected with pilot pin（65）, the cylinder（6）It is threaded with round barrel cover
（62）, the round barrel cover（62）It is fixedly connected with sucker（64）, the round barrel cover（62）It is equipped with and pilot pin（65）Match
Through-hole.
2. a kind of multifunctional mathmatical schooling apparatus according to claim 1, it is characterised in that：The first long ruler（1）If
Have and bevel protractor（26）The first boss to match, the second long ruler（2）It is equipped with and bevel protractor（26）Second to match is convex
Platform.
3. a kind of multifunctional mathmatical schooling apparatus according to claim 2, it is characterised in that：The second boss is equipped with rolling
Pearl, the bevel protractor（26）The back side is equipped with the arc groove to match with ball.
4. a kind of multifunctional mathmatical schooling apparatus according to claim 3, it is characterised in that：The pilot pin（65）For rubber
Glue material matter.
5. a kind of multifunctional mathmatical schooling apparatus according to claim 4, it is characterised in that：The round barrel cover（62）And circle
Cylinder（6）Between seal, the spring（61）Elastic force be less than sucker（64）Suction.
6. a kind of multifunctional mathmatical schooling apparatus according to claim 5, it is characterised in that：The first long ruler（1）If
There is the second lock buckling groove（13）, the second long ruler（2）Equipped with turn buckle and the first lock buckling groove（29）, the turn buckle is connected with bullet
Power item（28）, the resilient strip（28）One end is equipped with lock, the lock and the first lock buckling groove（29）With the second lock buckling groove（13）
Match.
7. a kind of multifunctional mathmatical schooling apparatus according to claim 6, it is characterised in that：The cylinder（4）With first
Long ruler（1）It is threadedly coupled, the cylinder（4）Centre is equipped with through-hole.
8. a kind of multifunctional mathmatical schooling apparatus according to claim 7, it is characterised in that：The sucker（64）Color is saturating
It is bright.
9. a kind of multifunctional mathmatical schooling apparatus according to claim 8, it is characterised in that：The hinge（3）Equipped with two
A blade（32）, two blades（32）It is embedded in the first long ruler（1）With the second long ruler（2）It is internal.
10. a kind of multifunctional mathmatical schooling apparatus according to claim 9, it is characterised in that：The first long ruler scale
Ruler（12）With the second long ruler graduated scale（12）Minimum scale is 10mm, the angle index（24）Minimum scale is 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619044.0A CN108749413A (en) | 2018-06-15 | 2018-06-15 | A kind of multifunctional mathmatical schooling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619044.0A CN108749413A (en) | 2018-06-15 | 2018-06-15 | A kind of multifunctional mathmatical schooling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108749413A true CN108749413A (en) | 2018-11-06 |
Family
ID=63978075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810619044.0A Pending CN108749413A (en) | 2018-06-15 | 2018-06-15 | A kind of multifunctional mathmatical schooling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108749413A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113085415A (en) * | 2021-05-18 | 2021-07-09 | 浙江师范大学 | Be used for multi-functional teaching aid of teaching |
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| CN2412756Y (en) * | 1999-10-28 | 2001-01-03 | 王忠华 | Anti-skid chalk compasses |
| CN101096163A (en) * | 2006-06-26 | 2008-01-02 | 上海工商信息学校 | Chalk cap |
| CN201511709U (en) * | 2009-06-22 | 2010-06-23 | 许彬 | Teaching compass |
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| CN204586250U (en) * | 2015-02-26 | 2015-08-26 | 杜彦娟 | Multifunctional math teaching aid |
| CN106476492A (en) * | 2015-09-01 | 2017-03-08 | 刘刚 | Multi-functional auxiliary calculates ruler for learning |
| CN107116930A (en) * | 2017-04-25 | 2017-09-01 | 怀化学院 | A kind of dust-proof propelling chalk sleeve |
| CN108016163A (en) * | 2016-11-04 | 2018-05-11 | 广安市前锋区小井乡小学校 | Teaching chalk set |
| CN208263827U (en) * | 2018-06-15 | 2018-12-21 | 张楷文 | A kind of multifunctional mathmatical schooling apparatus |
-
2018
- 2018-06-15 CN CN201810619044.0A patent/CN108749413A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2079124U (en) * | 1990-12-14 | 1991-06-19 | 尹世亮 | Multi-purpose rule and guage |
| CN2412756Y (en) * | 1999-10-28 | 2001-01-03 | 王忠华 | Anti-skid chalk compasses |
| CN101096163A (en) * | 2006-06-26 | 2008-01-02 | 上海工商信息学校 | Chalk cap |
| CN201511709U (en) * | 2009-06-22 | 2010-06-23 | 许彬 | Teaching compass |
| CN204354675U (en) * | 2014-12-21 | 2015-05-27 | 侯琳 | A kind of multifunctional teaching gauge |
| CN204586250U (en) * | 2015-02-26 | 2015-08-26 | 杜彦娟 | Multifunctional math teaching aid |
| CN106476492A (en) * | 2015-09-01 | 2017-03-08 | 刘刚 | Multi-functional auxiliary calculates ruler for learning |
| CN108016163A (en) * | 2016-11-04 | 2018-05-11 | 广安市前锋区小井乡小学校 | Teaching chalk set |
| CN107116930A (en) * | 2017-04-25 | 2017-09-01 | 怀化学院 | A kind of dust-proof propelling chalk sleeve |
| CN208263827U (en) * | 2018-06-15 | 2018-12-21 | 张楷文 | A kind of multifunctional mathmatical schooling apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113085415A (en) * | 2021-05-18 | 2021-07-09 | 浙江师范大学 | Be used for multi-functional teaching aid of teaching |
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Application publication date: 20181106 |