CN107696756A - A kind of ellipse drawing blackboard - Google Patents
A kind of ellipse drawing blackboard Download PDFInfo
- Publication number
- CN107696756A CN107696756A CN201710776677.8A CN201710776677A CN107696756A CN 107696756 A CN107696756 A CN 107696756A CN 201710776677 A CN201710776677 A CN 201710776677A CN 107696756 A CN107696756 A CN 107696756A
- Authority
- CN
- China
- Prior art keywords
- groove
- hinge bar
- mounting
- mobile jib
- rail
- 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.)
- Withdrawn
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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
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
- B43L11/05—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with gears
-
- 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
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
- B43L11/055—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Toys (AREA)
Abstract
The invention discloses a kind of convenient blackboard for drawing ellipse,Including plate body,Holding tank is provided with scale,Elliptical drawing tool is provided with holding tank,Elliptical drawing tool includes mobile jib,First hinge bar,Second hinge bar,Mobile jib is hinged on inside holding tank,Mounting groove is set on mobile jib,The position of plate body is provided with rail groove in mounting groove,First hinge bar is hinged on mounting groove backwards to the position of rail groove,The second hinge bar is hinged with first hinge bar,The moving mass slided in rail groove is provided with rail groove,Moving mass is hinged with the second hinge bar backwards to one end of the first hinge bar,The through slot of insertion mobile jib is provided with rail groove,Gangbar is provided with outside through slot,Connecting rod is provided with gangbar,Connecting rod is fixedly connected through through slot and moving mass with the second hinge bar,Gangbar is provided with the insertion tube for being inserted in for chalk and being drawn on body backwards to one end of mobile jib.It is this to draw oval mode, simple in construction, easy processing and manipulation.
Description
Technical field
The present invention relates to a kind of realia, more particularly to a kind of ellipse drawing blackboard.
Background technology
Blackboard is not to refer in particular to the plate face of black, said in traditional sense it be one can be hard with the plane of repeated writing, plate face
Firmly, it is used for imparting knowledge to students.Made of plank or ground glass etc., it can be write with the specific writing material such as chalk above.
Mostly black, blackish green, white or ecru.
It is often required to draw elliptical shape on blackboard in teaching, during use, and elliptical shape is for thinking manual picture
For, and the instrument of existing picture ellipse is complex, is not suitable for drawing on blackboard.
The content of the invention
In view of the deficienciess of the prior art, it is an object of the invention to provide.
To achieve the above object, the invention provides following technical scheme：A kind of blackboard for facilitating picture oval.It is a kind of oval
Blackboard is drawn, including plate body, the plate body bottom are provided with mounting rail, and screw rod, the screw rod one are provided with the mounting rail
End is connected with the first rotating mechanism, first rotating mechanism, and the interior sliding of the mounting rail is connected with slipping block, the slipping block
On be provided with screwed hole, the screw flight is connected on screwed hole, rotates the screw rod, and the slipping block is transported in mounting rail
Dynamic, the part that the slipping block stretches out mounting rail is provided with chute, in the chute sliding be connected with scale, the scale is from cunning
Groove both ends are stretched out, and plate body is stretched in one end, and bar shaped tooth is provided with the scale, and the plate body bottom is provided with rotating cylinder, institute
State and annular tooth is provided with rotating cylinder, the annular tooth engages with positioned at the bar shaped tooth backwards to plate body one end, on the rotating cylinder
The second rotating mechanism is provided with, holding tank is provided with the scale, elliptical drawing tool is provided with the holding tank, it is described
Elliptical drawing tool includes mobile jib, the first hinge bar, the second hinge bar, and the mobile jib is hinged on inside holding tank, the mobile jib
Upper setting mounting groove, the mounting groove is interior to be provided with rail groove towards the position of plate body, and first hinge bar is hinged on installation
Groove is hinged with the second hinge bar on the position of rail groove, first hinge bar, is provided with the rail groove in track
The moving mass slided in groove, the moving mass is hinged with the second hinge bar backwards to one end of the first hinge bar, on the rail groove
The through slot of insertion mobile jib is provided with, gangbar is provided with outside the through slot, connecting rod is provided with the gangbar, it is described
Connecting rod is fixedly connected through through slot and moving mass with the second hinge bar, and the gangbar is provided with confession backwards to one end of mobile jib
Chalk is inserted in the insertion tube drawn on body.
As a further improvement on the present invention, some mounting holes are provided with the holding tank, are provided with the mobile jib
For the mounting post being hinged on mounting hole, set fluted on the mobile jib, be provided with the groove by pressing spring, it is described
Mounting post is arranged on groove, and the pressing both ends of the spring is fixedly connected respectively at mounting post with bottom portion of groove, and the spring is kept
Mounting post is stretched out outside groove.
As a further improvement on the present invention, the first sliding groove is provided with the scale, is set on first sliding groove
The first sliding shoe is equipped with, described first sliding shoe one end is stretched out from the first sliding groove, and first sliding shoe stretches out first
Sliding groove one end, which is provided with, is inserted in the first chalk jack that straight line is drawn on plate body for chalk.
As a further improvement on the present invention, the link slot of insertion scale is provided between some mounting holes, it is described
The diameter that well width is less than mounting post is connected, pressing lever is connected with the mounting post, the pressing shank diameter is less than or equal to connect
Access slot width, after the mounting post is completely into groove, mobile jib position is adjusted through link slot by pressing lever.
As a further improvement on the present invention, the part that first sliding shoe is located in the first sliding groove is provided with depression
Groove, spring is provided with the recessed groove, pellet is provided with the spring, the spring keeps pellet to stretch out outside recessed groove,
The embedded caulking groove of ammunition feed is provided with the first sliding groove inwall.
As a further improvement on the present invention, limited block is provided with the slipping block, confession is provided with the mounting rail
The stopper slot of limited block insertion.
As a further improvement on the present invention, the limited block is trapezoidal, and the short side of the stopper slot and slipping block weight
Close, the stopper slot with it is spacing block-shaped identical.
As a further improvement on the present invention, first rotating mechanism, the second rotating mechanism are clockwise and anticlockwise motor.Make
For further improvement of the present invention, the interior side backwards to track strip of the mounting groove is provided with the first hinge hole, first hinge
The first articulated column coordinated with the first hinge hole is provided with extension bar, first hinge bar is set backwards to one end of the first articulated column
The second hinge hole is equipped with, the second articulated column being hinged with the second hinge hole, second hinge are provided with second articulated column
Extension bar is provided with the fixing hole of rectangular cross-section on the second articulated column, and the rectangle that section is provided with the connecting rod is consolidated
Fixed pole, the fix bar are inserted into fixing hole, section are provided with the moving mass as circular perforation, the connecting rod is cut
Face is circle.
In use, the first rotating mechanism can be driven first so that the first rotating mechanism is rotated so as to drive position
Slipping block within mounting rail is subjected to displacement, this makes it possible to control scale in the position of horizontal level, in displacement process,
Because annular tooth engages with bar shaped tooth, such bar shaped tooth will enter line slip in the between cog of annular tooth, not interfere with normal
Use adjustment.
Simultaneously can be by driving the second rotating mechanism so that rotating cylinder also rotates, so that annular tooth drives
Bar shaped tooth, it can thus control position of the scale on vertical.
The first transmission mechanism and the second transmission mechanism can also be driven simultaneously, while adjusts horizontally and vertically position, so
Can enables scale to be displaced on any position.
When needing picture ellipse, it is only necessary to put down mobile jib from holding tank so that mobile jib is entered on plate body, Zhi Houtong
Cross and rotate the first hinge bar, in the first hinge bar in rotation process, the second hinge bar can be driven to move, the second hinge bar
It is hinged on moving mass, is limited by rail groove during the motion of moving mass, so allow for the motion of the second hinge bar
An oval motion path being formed, afterwards due to the setting of through slot so that gangbar can be connected with the second hinge bar,
Interference of the mobile jib for the second hinge bar can thus be excluded so that the chalk being inserted in gangbar insertion tube can drawn
When oval, it can be contacted completely with plate body, draw complete ellipse.
It is this to draw oval mode, simple in construction, easy processing and manipulation.Draw simultaneously convenient also more convenient.
Brief description of the drawings
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is the detonation configuration figure of the present invention；
Fig. 3 is the backsight explosive view of the present invention；
Fig. 4 is the elliptical drawing tool structural representation of the present invention；
Fig. 5 is the first sliding shoe fit structure schematic diagram inside the scale of the present invention；
Fig. 6 is the mobile jib internal structure schematic diagram of the present invention；
Fig. 7 is the mobile jib mounting post structural representation of the present invention.
1st, plate body；2nd, mounting rail；3rd, screw rod；4th, the first rotating mechanism；5th, slipping block；6th, screwed hole；8th, chute；9th, mark
Chi；10th, bar shaped tooth；11st, rotating cylinder；12nd, annular tooth；13rd, the second rotating mechanism；14th, holding tank；15th, mobile jib；16th, the first hinge
Extension bar；17th, the second hinge bar；18th, mounting groove；19th, rail groove；20th, moving mass；21st, through slot；22nd, gangbar；23rd, connect
Bar；24th, insertion tube；25th, mounting hole；26th, mounting post；27th, groove；28th, by pressing spring；29th, the first sliding groove；30th, first slide
Block；31st, the first chalk jack；32nd, link slot；33rd, pressing lever；34th, recessed groove；35th, spring；36th, pellet；37th, caulking groove；38、
Limited block；39th, stopper slot；40th, the first hinge hole；41st, the first articulated column；42nd, the second hinge hole；43rd, the second articulated column；44、
Fixing hole；45th, perforate；46th, fix bar.
Embodiment
The present invention is described in further detail below in conjunction with the embodiment given by accompanying drawing.
Referring to figs. 1 to shown in 7, a kind of ellipse drawing blackboard of the present embodiment, including plate body 1, the bottom of plate body 1 are set
There is mounting rail 2, be provided with screw rod 3 in the mounting rail 2, described one end of screw rod 3 is connected with the first rotating mechanism 4, and described first
Rotating mechanism 4, the interior sliding of the mounting rail 2 are connected with slipping block 5, screwed hole 6, the screw rod 3 are provided with the slipping block 5
It is threaded on screwed hole 6, rotates the screw rod 3, the slipping block 5 moves in mounting rail 2, and the slipping block 5 stretches out
The part of mounting rail 2 is provided with chute 8, is slid in the chute 8 and is connected with scale 9, and the scale 9 stretches out from chute both ends,
And plate body 1 is stretched in one end, bar shaped tooth 10 is provided with the scale 9, the bottom of plate body 1 is provided with rotating cylinder 11, the rotation
Annular tooth 12 is provided with rotating cylinder 11, the annular tooth 12 engages with positioned at the bar shaped tooth 10 backwards to the one end of plate body 1, the rotation
The second rotating mechanism 13 is provided with cylinder 11, holding tank 14 is provided with the scale 9, ellipse is provided with the holding tank 14
Drawing tool, the elliptical drawing tool include mobile jib 15, the first hinge bar 16, the second hinge bar 17, and the mobile jib 15 is be hinged
Inside holding tank 14, mounting groove 18 is set, the interior position towards plate body 1 of the mounting groove 18 sets rail on the mobile jib 15
Road groove 19, first hinge bar 16 are hinged on mounting groove 18 and cut with scissors on the position of rail groove 19, first hinge bar 16
The second hinge bar 17 is connected to, the moving mass 20 slided in rail groove 19, the moving mass 20 are provided with the rail groove 19
It is hinged with the second hinge bar 17 backwards to one end of the first hinge bar 16, the insertion of insertion mobile jib 15 is provided with the rail groove 19
Groove 21, the through slot 21 are provided with gangbar 22 outside, connecting rod 23 are provided with the gangbar 22, the connecting rod 23 is worn
Cross through slot 21 and moving mass 20 to be fixedly connected with the second hinge bar 17, the gangbar 22 is provided with backwards to one end of mobile jib 15
The insertion tube 24 drawn on body is inserted in for chalk.
In use, the first rotating mechanism 4 can be driven first so that the first rotating mechanism 4 is rotated so as to drive
Slipping block 5 within mounting rail 2 is subjected to displacement, and is moved past in place in the position of horizontal level this makes it possible to control scale 9
Cheng Zhong, because annular tooth 12 engages with bar shaped tooth 10, such bar shaped tooth 10 will enter line slip in the between cog of annular tooth 12,
Normal use adjustment is not interfered with.
Simultaneously can be by driving the second rotating mechanism 13 so that rotating cylinder 11 also rotates, so that annular tooth
12 drive bar shaped teeth 10, can thus control position of the scale 9 on vertical.
The first transmission mechanism and the second transmission mechanism can also be driven simultaneously, while adjusts horizontally and vertically position, so
Can enables scale 9 to be displaced on any position.
When needing picture ellipse, it is only necessary to put down mobile jib 15 from holding tank 14 so that mobile jib 15 enters plate body 1
On, afterwards by rotating the first hinge bar 16, in the first hinge bar 16 in rotation process, the second hinge bar 17 can be driven to occur
Motion, the second hinge bar 17 is hinged on moving mass 20, is limited by rail groove 19 during the motion of moving mass 20, so
The motion for allowing for the second hinge bar 17 forms an oval motion path, afterwards due to the setting of through slot 21 so that
Gangbar 22 can be connected with the second hinge bar 17, can thus be excluded interference of the mobile jib 15 for the second hinge bar 17, be made
Chalk in the insertion tube 24 of gangbar 22, which must be inserted in, can contact, draw complete with plate body 1 completely when drawing oval
Ellipse.
It is this to draw oval mode, simple in construction, easy processing and manipulation.Draw simultaneously convenient also more convenient.
As a kind of improved embodiment, some mounting holes 25, the mobile jib are provided with the holding tank 14
The mounting post 26 for being hinged on mounting hole 25 is provided with 15, fluted 27 are set on the mobile jib 15, the groove 27
Inside it is provided with by pressing spring 28, the mounting post 26 is arranged on groove 27, and the both ends of pressing spring 28 of pressing are respectively at mounting post 26
It is fixedly connected with the bottom of groove 27, the spring 35 keeps mounting post 26 to stretch out outside groove 27.
, can be directly by pressing mounting post 26 during adjusting so that mounting post 26 is trapped in groove 27,
Can thus cause mobile jib 15 to depart from limitation, adjust to suitable position, unclamp mounting post 26 afterwards, thus can by
In the presence of pressing spring 28 so that mounting post 26 is embedded into suitable mounting hole 25 again.
As a kind of improved embodiment, the first sliding groove 29 is provided with the scale 9, described first slides
The first sliding shoe 30 is provided with groove 29, described one end of first sliding shoe 30 is stretched out from the first sliding groove, and described first slides
Motion block 30 stretches out first sliding groove one end and is provided with the first chalk jack 31 for being inserted in for chalk and straight line being drawn on plate body 1.
By the setting of the first sliding shoe 30, directly chalk can be inserted into the first chalk jack 31, directly allow
One sliding shoe 30 enters line slip in the first sliding groove, it is possible to directly draws more neat straight line.So that using more square
Just.
As a kind of improved embodiment, the connection of insertion scale 9 is provided between some mounting holes 25
Groove 32, the width of link slot 32 are less than the diameter of mounting post 26, pressing lever 33, the pressing are connected with the mounting post 26
The diameter of bar 33 is less than or equal to the width of link slot 32, after the mounting post 26 is completely into groove 27, is passed through and connected by pressing lever 33
Access slot 32 adjusts the position of mobile jib 15.
Pass through above-mentioned technical proposal, can be in course of adjustment more to facilitate.
As a kind of improved embodiment, the part that first sliding shoe 30 is located in the first sliding groove 29 is set
Recessed groove 34 is equipped with, spring 35 is provided with the recessed groove 34, pellet 36 is provided with the spring 35, the spring 35 is protected
Hold pellet 36 to stretch out outside recessed groove 34, the caulking groove 37 of the insertion of ammunition feed 36 is provided with the inwall of the first sliding groove 29.
Pass through the cooperation of pellet 36 and caulking groove 37 so that have in use in the first sliding shoe 30 and the second sliding shoe
One position-limiting action, can be limited during impracticable, will not arbitrarily slide.
As a kind of improved embodiment, limited block 38 is provided with the slipping block 5, on the mounting rail 2
It is provided with the stopper slot 39 being embedded in for limited block 38.
By the cooperation of limited block 38 and stopper slot 39, slipping block 5 is enabled to be not easily disconnected from, make in installation process
Obtain more stable in slipping.
As a kind of improved embodiment, the limited block 38 is trapezoidal, and the short side of the stopper slot 39 with
Slipping block 5 overlaps, and the stopper slot 39 is identical with the shape of limited block 38.
By the way that limited block 38 and stopper slot 39 are set in echelon, it can further strengthen position-limiting action.
As a kind of improved embodiment, first rotating mechanism 4, the second rotating mechanism 13 are rotating
Motor.
Clockwise and anticlockwise motor is more conventional motor, and the function of rotating can be directly realized by switch.
As a kind of improved embodiment, the side in the mounting groove 18 backwards to track strip is provided with the first hinge
Hole 40 is connect, the first articulated column 41 coordinated with the first hinge hole 40 is provided with first hinge bar 16, described first is be hinged
Bar 16 is provided with the second hinge hole 42 backwards to one end of the first articulated column 41, is provided with second articulated column 43 and the second hinge
The second be hinged articulated column 43 of hole 42 is connect, second hinge bar 17 is provided with rectangular cross-section on the second articulated column 43
Fixing hole 44, the fix bar 46 of the rectangle in section is provided with the connecting rod 23, and the fix bar 46 is inserted into fixing hole 44
In, section is provided with the moving mass 20 as circular perforation 45, the section of connecting rod 23 is circle.
Pass through above-mentioned technical proposal, fix bar 46 is set in connecting rod 23, and fix bar 46 is passed through from perforation 45, is inserted into
Formed a fixed connection in fixing hole 44 with the second hinge bar 17, the section of connecting rod 23 cooperates for circular and perforation 45, so
It is be hinged structure to be formed the second hinge bar 17 and moving mass 20.Above-mentioned fit structure, it is relatively simple easily operated.
Described above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
- A kind of 1. ellipse drawing blackboard, it is characterised in that：Including plate body (1), plate body (1) bottom is provided with mounting rail (2), It is provided with screw rod (3) in the mounting rail (2), described screw rod (3) one end is connected with the first rotating mechanism (4), described first turn Motivation structure (4), the interior sliding of the mounting rail (2) are connected with slipping block (5), screwed hole (6) are provided with the slipping block (5), The screw rod (3) is threaded on screwed hole (6), rotates the screw rod (3), and the slipping block (5) is transported in mounting rail (2) Dynamic, the part that the slipping block (5) stretches out mounting rail (2) is provided with chute (8), is slid in the chute (8) and is connected with scale (9), the scale (9) is stretched out from chute both ends, and plate body (1) is stretched in one end, and bar shaped tooth is provided with the scale (9) (10), plate body (1) bottom is provided with rotating cylinder (11), and annular tooth (12), the ring are provided with the rotating cylinder (11) Shape tooth (12) is engaged with positioned at the bar shaped tooth (10) backwards to plate body (1) one end, and the second rotation is provided with the rotating cylinder (11) Mechanism (13), holding tank (14) is provided with the scale (9), is provided with elliptical drawing tool in the holding tank (14), institute Stating elliptical drawing tool includes mobile jib (15), the first hinge bar (16), the second hinge bar (17), and the mobile jib (15) is hinged on appearance Groove (14) of receiving is internal, and mounting groove (18) is set on the mobile jib (15), is set in the mounting groove (18) towards the position of plate body (1) It is equipped with rail groove (19), first hinge bar (16) is hinged on mounting groove (18) backwards to the position of rail groove (19), and described the The second hinge bar (17) is hinged with one hinge bar (16), is provided with what is slided in rail groove (19) in the rail groove (19) Moving mass (20), the moving mass (20) are hinged with the second hinge bar (17) backwards to one end of the first hinge bar (16), the rail The through slot (21) of insertion mobile jib (15) is provided with road groove (19), gangbar (22), institute are provided with outside the through slot (21) State and connecting rod (23) is provided with gangbar (22), the connecting rod (23) passes through through slot (21) and moving mass (20) and second Hinge bar (17) is fixedly connected, and the gangbar (22) is provided with to be inserted on body for chalk and painted backwards to one end of mobile jib (15) The insertion tube (24) of figure.
- A kind of 2. ellipse drawing blackboard according to claim 1, it is characterised in that：The holding tank (14) if on be provided with Dry mounting hole (25), the mounting post (26) for being hinged on mounting hole (25), the mobile jib are provided with the mobile jib (15) (15) set on fluted (27), be provided with the groove (27) and be arranged on recessed by pressing spring (28), the mounting post (26) Groove (27), described to be fixedly connected by pressing spring (28) both ends respectively at mounting post (26) with groove (27) bottom, the spring (35) mounting post (26) is kept to stretch out groove (27) outside.
- A kind of 3. ellipse drawing blackboard according to claim 2, it is characterised in that：First is provided with the scale (9) Sliding groove (29), is provided with the first sliding shoe (30) on first sliding groove (29), described first sliding shoe (30) one end from Stretched out in first sliding groove, and first sliding shoe (30) stretching, first sliding groove one end is provided with and is inserted in plate body for chalk (1) the first chalk jack (31) of straight line is drawn on.
- A kind of 4. ellipse drawing blackboard according to claim 3, it is characterised in that：Set between some mounting holes (25) The link slot (32) of insertion scale (9) is equipped with, link slot (32) width is less than the diameter of mounting post (26), the mounting post (26) pressing lever (33) is connected with, pressing lever (33) diameter is less than or equal to link slot (32) width, the mounting post (26) after completely into groove (27), mobile jib (15) position is adjusted through link slot (32) by pressing lever (33).
- A kind of 5. ellipse drawing blackboard according to claim 4, it is characterised in that：First sliding shoe (30) is positioned at the Part in one sliding groove (29) is provided with recessed groove (34), and spring (35), the spring are provided with the recessed groove (34) (35) pellet (36) is provided with, the spring (35) keeps pellet (36) to stretch out recessed groove (34) outside, first sliding groove (29) the embedded caulking groove (37) of ammunition feed (36) is provided with inwall.
- A kind of 6. ellipse drawing blackboard according to claim 5, it is characterised in that：Set on the slipping block (5) limited Position block (38), it is provided with the mounting rail (2) for the embedded stopper slot (39) of limited block (38).
- A kind of 7. ellipse drawing blackboard according to claim 6, it is characterised in that：The limited block (38) is trapezoidal, and The short side of the stopper slot (39) overlaps with slipping block (5), and the stopper slot (39) is identical with limited block (38) shape.
- A kind of 8. ellipse drawing blackboard according to claim 7, it is characterised in that：First rotating mechanism (4), second Rotating mechanism (13) is clockwise and anticlockwise motor.
- A kind of 9. ellipse drawing blackboard according to claim 8, it is characterised in that：Backwards to track in the mounting groove (18) The side of bar is provided with the first hinge hole (40), is provided with what is coordinated with the first hinge hole (40) on first hinge bar (16) First articulated column (41), first hinge bar (16) are provided with the second hinge hole backwards to one end of the first articulated column (41) (42), be provided with second articulated column (43) with the second hinge hole (42) be hinged the second articulated column (43), described second Hinge bar (17) is provided with the fixing hole (44) of rectangular cross-section on the second articulated column (43), is set on the connecting rod (23) The fix bar (46) of the rectangle in section is equipped with, the fix bar (46) is inserted into fixing hole (44), on the moving mass (20) Section is provided with as circular perforation (45), connecting rod (23) section is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710776677.8A CN107696756A (en) | 2017-08-31 | 2017-08-31 | A kind of ellipse drawing blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710776677.8A CN107696756A (en) | 2017-08-31 | 2017-08-31 | A kind of ellipse drawing blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107696756A true CN107696756A (en) | 2018-02-16 |
Family
ID=61171511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710776677.8A Withdrawn CN107696756A (en) | 2017-08-31 | 2017-08-31 | A kind of ellipse drawing blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107696756A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367293A (en) * | 2018-10-23 | 2019-02-22 | 张艺璇 | A kind of modified compasses |
| CN112060812A (en) * | 2020-04-26 | 2020-12-11 | 杨波 | Ellipsograph |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4356633A (en) * | 1981-07-27 | 1982-11-02 | Marian Poll | Ellipsograph |
| CN2586591Y (en) * | 2002-10-22 | 2003-11-19 | 刘浩 | Ellipsograph with curved lever and chute |
| CN104070894A (en) * | 2014-05-10 | 2014-10-01 | 张磊 | Magnetic writing board with handwriting erasing mechanism |
| CN204687653U (en) * | 2015-06-02 | 2015-10-07 | 帅晓华 | Novel ellipse figure renderer |
| CN105946402A (en) * | 2016-07-21 | 2016-09-21 | 万象设计江苏有限责任公司 | Multifunctional blackboard |
-
2017
- 2017-08-31 CN CN201710776677.8A patent/CN107696756A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4356633A (en) * | 1981-07-27 | 1982-11-02 | Marian Poll | Ellipsograph |
| CN2586591Y (en) * | 2002-10-22 | 2003-11-19 | 刘浩 | Ellipsograph with curved lever and chute |
| CN104070894A (en) * | 2014-05-10 | 2014-10-01 | 张磊 | Magnetic writing board with handwriting erasing mechanism |
| CN204687653U (en) * | 2015-06-02 | 2015-10-07 | 帅晓华 | Novel ellipse figure renderer |
| CN105946402A (en) * | 2016-07-21 | 2016-09-21 | 万象设计江苏有限责任公司 | Multifunctional blackboard |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367293A (en) * | 2018-10-23 | 2019-02-22 | 张艺璇 | A kind of modified compasses |
| CN112060812A (en) * | 2020-04-26 | 2020-12-11 | 杨波 | Ellipsograph |
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Application publication date: 20180216 |
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| WW01 | Invention patent application withdrawn after publication |