CN107097569A - One kind teaching picture circle and oval apparatus - Google Patents

One kind teaching picture circle and oval apparatus Download PDF

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Publication number
CN107097569A
CN107097569A CN201710471304.XA CN201710471304A CN107097569A CN 107097569 A CN107097569 A CN 107097569A CN 201710471304 A CN201710471304 A CN 201710471304A CN 107097569 A CN107097569 A CN 107097569A
Authority
CN
China
Prior art keywords
oval
circular
inner ring
chalk
picture circle
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.)
Pending
Application number
CN201710471304.XA
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Chinese (zh)
Inventor
屈雷涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heze University
Original Assignee
屈雷涛
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 屈雷涛 filed Critical 屈雷涛
Priority to CN201710471304.XA priority Critical patent/CN107097569A/en
Publication of CN107097569A publication Critical patent/CN107097569A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L11/00Non-circular-curve-drawing instruments
    • B43L11/02Non-circular-curve-drawing instruments for drawing conic sections
    • B43L11/04Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L12/00Means to prevent slippage
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L9/00Circular curve-drawing or like instruments
    • B43L9/02Compasses
    • B43L9/04Beam compasses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L9/00Circular curve-drawing or like instruments
    • B43L9/16Features common to compasses, dividers, and callipers
    • B43L9/24Means for mounting points or writing appliances on legs

Abstract

The invention discloses one kind teaching picture circle and oval apparatus, including chalk, chalk is fixed in chalk fixed cylinder, its upper end activity is plugged in the loose slot of cross bar, and the inner of loose slot is fixedly connected with chalk fixed cylinder by stage clip, and cross bar is fixedly mounted on the two ends of support shaft, the bottom of support shaft is fixedly mounted on the inner ring of bearing block, bearing block is arranged on firm banking, and firm banking bottom is provided with sucker, and the side of fixed bottom is fixedly connected with circular inner by connecting rod.Structure of the present invention increases the frictional force between firm banking and blackboard by sucker when in use, press rotating handles, can contact circular inner and blackboard surface, so as to which whole drawing device is movably fixed on blackboard, elliptical slot and circular trough are divided into by two independent regions by connecting shaft, two chalks are located at the opposed two ends in two regions respectively, now hand-held rotating handles, and rotating 180 ° just can complete picture circle or oval.

Description

One kind teaching picture circle and oval apparatus
Technical field
It is specially a kind of teaching picture circle and oval apparatus the present invention relates to educational outfit field.
Background technology
In mathematical education, teacher is needed in blackboard upper drawing circle or ellipse, and drawing round instrument in teaching at present is mostly Compasses, because the central shaft lower end of compasses is mostly tip portion, easily cause damage to blackboard, while in drawing during circle Mandrel segment is unstable, and compasses are easily slided, and teacher is usually that manual letter is drawn when drawing oval, and there is presently no correlation Apparatus, cause math teacher draw circle and it is oval when waste more time, be this it is proposed that a kind of teaching picture circle and oval Apparatus is used to solve the above problems.
The content of the invention
It is an object of the invention to provide one kind teaching picture circle and oval apparatus, to solve what is proposed in above-mentioned background technology Problem.
To achieve the above object, the present invention provides following technical scheme:One kind teaching picture circle and oval apparatus, including powder Pen, the chalk is fixed in chalk fixed cylinder, and the chalk fixed cylinder is L-type structure, and its upper end activity is plugged on cross bar In loose slot, the inner of the loose slot is fixedly connected with chalk fixed cylinder by stage clip, and the cross bar is fixedly mounted on support shaft Two ends, the bottom of the support shaft is fixedly mounted on the inner ring of bearing block, and the bearing block is arranged on firm banking, institute Firm banking bottom is stated provided with sucker, and the side of fixed bottom is fixedly connected with circular inner by connecting rod, it is described circular interior It is provided with the outside of ring between oval inner ring, and circular inner and oval inner ring and is provided with circular trough, on the outside of the oval inner ring Elliptical slot, the lateral surface of the circular inner are provided with provided with oval outer shroud, and between oval inner ring and oval outer shroud Two ends are fixed with connecting shaft respectively, and the connecting shaft, which is sequentially passed through, is fixedly connected with oval inner ring and oval outer shroud, is located at The front and rear end side surface of oval outer shroud is provided with screw, the screw is connected with bolt, correspondence spiral shell by helicitic texture The oval inner ring of bolt is provided with movable span.
It is preferred that, loose slot is circular slot structure in the cross bar, and the diameter of the loose slot is equal to the width of stage clip, described Stage clip is constantly in compressive state, and the extension elongation of chalk fixed cylinder can be adjusted by stage clip.
It is preferred that, the support shaft upper end is fixed with rotating handles.
It is preferred that, the firm banking is cylindrical structure, and the bottom of the sucker is located at the lower section of circular inner bottom, The support shaft is rotated by bearing block on firm banking.
It is preferred that, the circular inner is cyclic structure, and its interior bore and outer bore are circle.
It is preferred that, the oval inner ring is cyclic structure, and its outer bore is ellipse, and its interior bore is circular configuration, And the internal diameter of oval inner ring is more than the external diameter of circular inner.
It is preferred that, the oval outer shroud is cyclic structure, and its outer bore and interior bore are ellipse, its interior bore Size is more than the outer caliber size of oval inner ring.
It is preferred that, elliptical slot and circular trough are divided into two independent regions by the connecting shaft, and two chalks distinguish position In the opposed two ends in two regions.
It is preferred that, the quantity of the bolt is two groups, and the bolt on the inside of oval outer shroud is provided with arc block, the arc The inner side face curvature of shape block is equal to the curvature of bore in oval inner ring.
Compared with prior art, the beneficial effects of the invention are as follows:
1st, structure of the present invention increases the frictional force between firm banking and blackboard by sucker when in use, presses rotating handles, Can contact circular inner and blackboard surface, so that whole drawing device is movably fixed on blackboard, will be ellipse by connecting shaft Circular trough and circular trough are divided into two independent regions, and two chalks are located at the opposed two ends in two regions respectively, now hand Rotating handles is held, rotating 180 ° just can complete picture circle or oval;
2nd, when needing regulation picture shape, on the inside of chalk fixed cylinder regulation to arc block, swivel bolt can fix chalk Cylinder is pushed or is positioned in circular trough or elliptical slot;
3rd, stage clip is constantly in compressive state, by stage clip can adjust chalk fixed cylinder always movable contact in circular trough or ellipse On circular trough inwall.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention;
Fig. 2 is bar structure schematic diagram in the present invention;
Fig. 3 is firm banking attachment structure schematic diagram of the present invention.
In figure:1 oval outer shroud, 21 elliptical slots, 22 circular troughs, 3 oval inner ring, 4 circular inners, 5 connecting shafts, 6 Firm banking, 7 suckers, 8 connecting rods, 9 bolts, 10 screws, 11 bearing blocks, 12 support shafts, 13 cross bars, 14 chalk fixed cylinders, 15 Chalk, 16 rotating handleses, 17 stage clips, 18 movable spans.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Fig. 1-3 are referred to, the present invention provides a kind of technical scheme:One kind teaching picture circle and oval apparatus, including chalk 15, Chalk is fixed in chalk fixed cylinder 14, and chalk fixed cylinder 14 is L-type structure, and its upper end activity is plugged on the loose slot of cross bar 13 Interior, the inner of loose slot is fixedly connected with chalk fixed cylinder 14 by stage clip 17, and cross bar 13 is fixedly mounted on the two ends of support shaft 12, Loose slot is circular slot structure in cross bar 13, and the diameter of the loose slot is equal to the width of stage clip 17, and stage clip 17 is constantly in compression State, the extension elongation of chalk fixed cylinder 14 can be adjusted by stage clip 17.
The bottom of support shaft 12 is fixedly mounted on the inner ring of bearing block 11, and the upper end of support shaft 12 is fixed with rotating handles 16, by hand-held rotating handles 16, rotating 180 ° just can complete picture circle or oval.
Bearing block 11 is arranged on firm banking 6, and the bottom of firm banking 6 is provided with sucker 7, and firm banking 6 is cylindrical type knot Structure, the bottom of sucker 7 is located at the lower section of the bottom of circular inner 4, and support shaft 12 is rotated by bearing block 11 on firm banking 6, Frictional force between firm banking 6 and blackboard is increased by sucker 7, rotating handles 16 is pressed, circular inner 4 and blackboard table can be made Face is contacted.
And the side of fixed bottom 6 is fixedly connected with circular inner 4 by connecting rod 8, the outside of circular inner 4 is provided with ellipse Be provided with circular trough 22 between inner ring 3, and circular inner 4 and oval inner ring 3, circular inner 4 is cyclic structure, its interior bore and Outer bore is circle.
Oval inner ring 3 is cyclic structure, and its outer bore is ellipse, and its interior bore is in circular configuration, and ellipse The internal diameter of ring 3 is more than the external diameter of circular inner 4.
The oval outside of inner ring 3 is provided between oval outer shroud 1, and oval inner ring 3 and oval outer shroud 1 provided with oval Shape groove 21, oval outer shroud 1 is cyclic structure, and its outer bore and interior bore are ellipse, and the size of its interior bore is more than ellipse The outer caliber size of circular inner 3.
The lateral surface two ends of circular inner 4 are fixed with connecting shaft 5 respectively, and connecting shaft 5, which is sequentially passed through, is fixedly connected with ellipse Elliptical slot 21 and circular trough 22 are divided into two independent regions, two chalks by shape inner ring 3 and oval outer shroud 1, connecting shaft 5 15 are located at the opposed two ends in two regions respectively, and the figure position that wherein connecting shaft 5 is blocked can be by the manual polishing of teacher, greatly The big time for saving teacher's picture.
It is provided with screw 10, screw 10 and is flexibly connected by helicitic texture positioned at the front and rear end side surface of oval outer shroud 1 There is bolt 9, the oval inner ring 3 of correspondence bolt 9 is provided with movable span 18, and the quantity of bolt 9 is two groups, positioned at oval outer shroud The bolt 9 of 1 inner side is provided with arc block, and the inner side face curvature of the arc block is equal to the curvature of bore in oval inner ring 3, passed through Swivel bolt 9, can control the position of the inner arc block of bolt 9, and the arc block is foil structures, when needing to adjust picture shape During shape, chalk fixed cylinder 14 is adjusted on the inside of arc block, chalk fixed cylinder 14 can be pushed or be positioned over circle by swivel bolt 9 In groove 22 or elliptical slot 21.
Operation principle:Structure of the present invention increases the frictional force between firm banking 6 and blackboard by sucker 7 when in use, Rotating handles 16 is pressed, can contact circular inner 4 and blackboard surface, so that whole drawing device is movably fixed into blackboard On, elliptical slot 21 and circular trough 22 are divided into by two independent regions by connecting shaft 5, two chalks 15 are located at two respectively The opposed two ends in region, now hand-held rotating handles 16, rotating 180 ° just can complete picture circle or oval, be drawn when needing to adjust During shape, chalk fixed cylinder 14 is adjusted on the inside of arc block, chalk fixed cylinder 14 can be pushed or be positioned over circle by swivel bolt 9 In shape groove 22 or elliptical slot 21, wherein stage clip 17 is constantly in compressive state, and chalk fixed cylinder can be adjusted by stage clip 17 14 always movable contact on circular trough 22 or the inwall of elliptical slot 21.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (9)

1. one kind teaching picture circle and oval apparatus, including chalk (15), the chalk are fixed in chalk fixed cylinder (14), it is special Levy and be:The chalk fixed cylinder (14) is L-type structure, and its upper end activity is plugged in the loose slot of cross bar (13), the work The inner of dynamic groove is fixedly connected with chalk fixed cylinder (14) by stage clip (17), and the cross bar (13) is fixedly mounted on support shaft (12) Two ends, the bottom of the support shaft (12) is fixedly mounted on the inner ring of bearing block (11), and the bearing block (11) is arranged on On firm banking (6), firm banking (6) bottom is provided with sucker (7), and the side of fixed bottom (6) passes through connecting rod (8) It is fixedly connected on the outside of circular inner (4), the circular inner (4) provided with oval inner ring (3), and circular inner (4) and ellipse It is provided between shape inner ring (3) on the outside of circular trough (22), the oval inner ring (3) provided with oval outer shroud (1), and in ellipse Elliptical slot (21) is provided between ring (3) and oval outer shroud (1), the lateral surface two ends of the circular inner (4) are fixed respectively Provided with connecting shaft (5), the connecting shaft (5), which sequentially passes through, is fixedly connected with oval inner ring (3) and oval outer shroud (1), is located at The front and rear end side surface of oval outer shroud (1) is provided with screw (10), the screw (10) and is connected with by helicitic texture Bolt (9), the oval inner ring (3) of correspondence bolt (9) is provided with movable span (18).
2. a kind of teaching picture circle according to claim 1 and oval apparatus, it is characterised in that:It is movable in the cross bar (13) Groove is circular slot structure, and the diameter of the loose slot is equal to the width of stage clip (17), and the stage clip (17) is constantly in compressive state, The extension elongation of chalk fixed cylinder (14) can be adjusted by stage clip (17).
3. a kind of teaching picture circle according to claim 1 and oval apparatus, it is characterised in that:Support shaft (12) upper end It is fixed with rotating handles (16).
4. a kind of teaching picture circle according to claim 1 and oval apparatus, it is characterised in that:The firm banking (6) is Cylindrical structure, the bottom of the sucker (7) is located at the lower section of circular inner (4) bottom, and the support shaft (12) passes through bearing Seat (11) is rotated on firm banking (6).
5. a kind of teaching picture circle according to claim 1 and oval apparatus, it is characterised in that:The circular inner (4) is Cyclic structure, its interior bore and outer bore are circle.
6. a kind of teaching picture circle according to claim 1 and oval apparatus, it is characterised in that:The oval inner ring (3) For cyclic structure, its outer bore is ellipse, and its interior bore is circular configuration, and the internal diameter of oval inner ring (3) is more than circle The external diameter of inner ring (4).
7. a kind of teaching picture circle according to claim 1 and oval apparatus, it is characterised in that:The oval outer shroud (1) For cyclic structure, its outer bore and interior bore are ellipse, and the size of its interior bore is more than the outer bore of oval inner ring (3) Size.
8. a kind of teaching picture circle according to claim 1 and oval apparatus, it is characterised in that:The connecting shaft (5) will be ellipse Circular trough (21) and circular trough (22) are divided into two independent regions, and it is opposed that two chalks (15) are located at two regions respectively Two ends.
9. a kind of teaching picture circle according to claim 1 and oval apparatus, it is characterised in that:The quantity of the bolt (9) For two groups, the bolt (9) on the inside of oval outer shroud (1) is provided with arc block, and the inner side face curvature of the arc block is equal to ellipse The curvature of circular inner (3) interior bore.
CN201710471304.XA 2017-06-20 2017-06-20 One kind teaching picture circle and oval apparatus Pending CN107097569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710471304.XA CN107097569A (en) 2017-06-20 2017-06-20 One kind teaching picture circle and oval apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710471304.XA CN107097569A (en) 2017-06-20 2017-06-20 One kind teaching picture circle and oval apparatus

Publications (1)

Publication Number Publication Date
CN107097569A true CN107097569A (en) 2017-08-29

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ID=59664019

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710471304.XA Pending CN107097569A (en) 2017-06-20 2017-06-20 One kind teaching picture circle and oval apparatus

Country Status (1)

Country Link
CN (1) CN107097569A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112693252A (en) * 2021-01-29 2021-04-23 重庆电子工程职业学院 Mathematics teaching is with supplementary teaching device
CN112793339A (en) * 2021-02-04 2021-05-14 日照职业技术学院 Mathematics teaching is with automatic drawing device
CN113133622A (en) * 2021-04-21 2021-07-20 陈孙豪 A work of fine arts show shelf for classroom teaching

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567662A (en) * 1983-08-30 1986-02-04 Peter Wallner Device for drawing ellipses
CN86207966U (en) * 1986-10-18 1987-08-12 唐映晖 Beam compasses centring with suction cup
CN2032147U (en) * 1988-07-07 1989-02-08 王世武 Simple ellipse compasses
CN2042420U (en) * 1989-02-01 1989-08-09 总参谋部炮兵装备技术研究所 Halving elliptic board
CN2850949Y (en) * 2005-12-08 2006-12-27 韩芳琦 Compasses for blackboard
CN201619351U (en) * 2010-03-26 2010-11-03 刘春荣 Novel cyclograph
CN201721210U (en) * 2010-04-08 2011-01-26 莫昌清 Looped ellipse formwork
CN202200740U (en) * 2011-08-03 2012-04-25 袁安锋 Novel compass
CN202213388U (en) * 2011-08-03 2012-05-09 时琰琰 Mathematics teaching aid
MD428Z (en) * 2010-02-01 2012-05-31 Ион РАССОХИН Curve tracing mechanism
CN202345177U (en) * 2011-12-15 2012-07-25 王庆萍 Adjustable compass for mathematical teaching
CN202847250U (en) * 2012-09-30 2013-04-03 王德湘 Magnetic teaching compasses
CN202986529U (en) * 2013-01-11 2013-06-12 宁波大学 Portable compass
CN203267577U (en) * 2013-05-27 2013-11-06 吴美英 Oval drawing board for teaching
CN203325282U (en) * 2013-06-03 2013-12-04 杨新宇 Elliptical teaching instrument
CN203974323U (en) * 2014-07-25 2014-12-03 泰山职业技术学院 A kind of rotation chi for animation design
CN205292034U (en) * 2015-12-21 2016-06-08 山东科技大学 Novel compasses

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567662A (en) * 1983-08-30 1986-02-04 Peter Wallner Device for drawing ellipses
CN86207966U (en) * 1986-10-18 1987-08-12 唐映晖 Beam compasses centring with suction cup
CN2032147U (en) * 1988-07-07 1989-02-08 王世武 Simple ellipse compasses
CN2042420U (en) * 1989-02-01 1989-08-09 总参谋部炮兵装备技术研究所 Halving elliptic board
CN2850949Y (en) * 2005-12-08 2006-12-27 韩芳琦 Compasses for blackboard
MD428Z (en) * 2010-02-01 2012-05-31 Ион РАССОХИН Curve tracing mechanism
CN201619351U (en) * 2010-03-26 2010-11-03 刘春荣 Novel cyclograph
CN201721210U (en) * 2010-04-08 2011-01-26 莫昌清 Looped ellipse formwork
CN202213388U (en) * 2011-08-03 2012-05-09 时琰琰 Mathematics teaching aid
CN202200740U (en) * 2011-08-03 2012-04-25 袁安锋 Novel compass
CN202345177U (en) * 2011-12-15 2012-07-25 王庆萍 Adjustable compass for mathematical teaching
CN202847250U (en) * 2012-09-30 2013-04-03 王德湘 Magnetic teaching compasses
CN202986529U (en) * 2013-01-11 2013-06-12 宁波大学 Portable compass
CN203267577U (en) * 2013-05-27 2013-11-06 吴美英 Oval drawing board for teaching
CN203325282U (en) * 2013-06-03 2013-12-04 杨新宇 Elliptical teaching instrument
CN203974323U (en) * 2014-07-25 2014-12-03 泰山职业技术学院 A kind of rotation chi for animation design
CN205292034U (en) * 2015-12-21 2016-06-08 山东科技大学 Novel compasses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112693252A (en) * 2021-01-29 2021-04-23 重庆电子工程职业学院 Mathematics teaching is with supplementary teaching device
CN112793339A (en) * 2021-02-04 2021-05-14 日照职业技术学院 Mathematics teaching is with automatic drawing device
CN113133622A (en) * 2021-04-21 2021-07-20 陈孙豪 A work of fine arts show shelf for classroom teaching

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Effective date of registration: 20180709

Address after: 274000 Heze University Road in Shandong Province

Applicant after: Heze University

Address before: 314500 Zhejiang, Jiaxing, Tongxiang city zhouquan town Qu Jia Bang village, No. 19

Applicant before: Qu Leitao

AD01 Patent right deemed abandoned
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Effective date of abandoning: 20190104