CN112721506A - Comprehensive portable ruler - Google Patents
Comprehensive portable ruler Download PDFInfo
- Publication number
- CN112721506A CN112721506A CN202011551369.3A CN202011551369A CN112721506A CN 112721506 A CN112721506 A CN 112721506A CN 202011551369 A CN202011551369 A CN 202011551369A CN 112721506 A CN112721506 A CN 112721506A
- Authority
- CN
- China
- Prior art keywords
- ruler
- layout
- layer
- needle
- longitudinal
- 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
Links
Images
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
- B43L9/00—Circular curve-drawing or like instruments
-
- 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
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a comprehensive portable ruler, the inner side of the layout of the second layer of ruler is longitudinally connected with a longitudinal shaft at the position corresponding to a drawing disc, the inner side of the layout of the second layer of ruler is vertically crossed and connected with a transverse shaft with a longitudinal shaft, a horizontal slideway is arranged on the inner side edge of the layout of the second layer of ruler in the horizontal direction, the vertical slide way is arranged in the vertical direction at the edge part of the inner side of the layout of the second layer of ruler, the invention adopts a longitudinal shaft, a transverse shaft, a longitudinal slide block, a transverse slide block, an elliptical needle, a lead-mounting ring, a cross groove, a horizontal slide way and a vertical slide way, so that the driving needle can move in the disc groove arranged on the drawing disc to adjust the radius of the drawn circle, meanwhile, the driving needle is connected with the longitudinal shaft and the transverse shaft, the longitudinal slide block is driven to move by the transverse shaft, the transverse slide block is driven to move by the longitudinal shaft, and the bottom ends of the longitudinal slide block and the transverse slide block are connected with the elliptical needle, so that ellipses and circles can be drawn quickly and conveniently.
Description
Technical Field
The invention relates to the technical field of mechanical drawing, in particular to a comprehensive portable ruler.
Background
The invention of the traditional ellipsograph enables people to realize that the double-slider mechanism can draw an ellipse with a certain specification, and the appearance of the novel ellipsograph realizes ellipse drawing and circle drawing, and when the ellipsograph has three functions, the universal ruler on the market integrates partial functions of a ruler, a protractor, a template and compasses;
however, the prior art has the following disadvantages: the traditional ellipsograph is not continuous in adjustability, and the elliptic needle is often required to be detached and reassembled, so that the use efficiency is reduced; the novel ellipsograph adopts a mode that two steel needles are inserted into a thin rope, the thin rope has great flexibility, the drawn oval boundary is not smooth, and the operability is not high; the template of the universal ruler on the market is fixed, and the drawn ellipse does not have adjustability and can not meet the actual drawing requirements of the students in the department of industry.
Disclosure of Invention
The invention provides a comprehensive portable ruler, which can effectively solve the problems that the traditional ellipsograph is discontinuous in adjustability and often needs to be disassembled and reassembled, and the use efficiency is reduced; the novel ellipsograph adopts a mode that two steel needles are inserted into a thin rope, the thin rope has great flexibility, the drawn oval boundary is not smooth, and the operability is not high; the template of the universal ruler on the market is fixed, and the drawn ellipse does not have adjustability and can not reach the problem of the actual drawing requirement of the students in the department of industry.
In order to achieve the purpose, the invention provides the following technical scheme: a comprehensive portable ruler comprises a first layer of ruler layout, a second layer of ruler layout, a third layer of ruler layout and a fourth layer of ruler layout, wherein the first layer of ruler layout, the second layer of ruler layout, the third layer of ruler layout and the fourth layer of ruler layout are connected in a stacking mode;
a longitudinal shaft is longitudinally connected to the position, corresponding to the drawing disc, of the inner side of the layout of the second layer of ruler, a transverse shaft is perpendicularly crossed and connected with the inner side of the layout of the second layer of ruler, a horizontal slide way is arranged in the horizontal direction of the edge of the inner side of the layout of the second layer of ruler, a vertical slide way is arranged in the vertical direction of the edge of the inner side of the layout of the second layer of ruler, the longitudinal shaft and the transverse shaft are respectively connected in the horizontal slide way and the vertical slide way in a sliding mode, and the horizontal slide way and the vertical slide way are respectively located on the upper;
a cross groove is formed in the inner side of the layout of the third layer of ruler, a longitudinal slide block is connected to the longitudinal position of the inner side of the cross groove in a sliding manner, a transverse slide block is connected to the transverse position of the inner side of the cross groove in a sliding manner, an elliptical needle is movably connected to the position, corresponding to the cross groove, of the inner side of the layout of the fourth layer of ruler, and a lead mounting ring is mounted at the bottom of the inner side of the elliptical needle;
a 20-millimeter round hole is formed in one side, corresponding to the drawing disc, of the inner part of the first layer of ruler layout, a 5-millimeter hollow circle is formed in the position, located on one side of the 20-millimeter round hole, of the inner part of the first layer of ruler layout, an annular array triangle is embedded and connected to the inner side of the 20-millimeter round hole, the annular array triangle penetrates through the first layer of ruler layout, the second layer of ruler layout, the third layer of ruler layout and the fourth layer of ruler layout, and the annular part of the annular array triangle is embedded in the second layer of ruler layout and the third layer of ruler layout;
the inner bottoms of the first layer of ruler layout, the second layer of ruler layout, the third layer of ruler layout and the fourth layer of ruler layout are all penetrated and provided with a movable extension sliding block groove, and the inner side of the movable extension sliding block groove is embedded into a sliding block in a sliding mode and connected with a movable sliding block.
Preferably, the lead-containing ring is assembled on the elliptical needle, the position of the elliptical needle is parallel to the layout of the fourth layer of ruler, the elliptical needle is connected with the longitudinal sliding block and the transverse sliding block, and the longitudinal sliding block and the transverse sliding block are embedded in the cross groove in the layout of the third layer of ruler.
Preferably, the longitudinal shaft passes through the transverse sliding block and is positioned in a horizontal slide way in the second layer of ruler plane, and the transverse shaft passes through the longitudinal sliding block and is positioned in a vertical slide way in the second layer of ruler plane.
Preferably, the longitudinal shaft and the transverse shaft penetrate through the driving needle, the driving needle is positioned in a disc groove formed in the inner side of the drawing disc, and the drawing disc is connected with the first layer of ruler layout in a revolute pair mode.
Preferably, the position of the bottom of the first layer of ruler layout, which is located on the corresponding side of the drawing disc, is embedded and connected with a protractor, the position of the fourth layer of ruler layout, which corresponds to the protractor, is movably connected with a fixed rotating shaft, and the top of the fixed rotating shaft is connected with a protractor needle.
Preferably, the protractor is of a hollow structure, the protractor needle is arranged in the protractor, and the protractor needle moves in the protractor through the fixed rotating shaft.
Compared with the prior art, the invention has the beneficial effects that: the invention has scientific and reasonable structure and safe and convenient use:
1. the driving needle can move in a disc groove formed in the drawing disc to adjust the radius of a drawn circle through a longitudinal shaft, a transverse shaft, a longitudinal sliding block, a transverse sliding block, an elliptical needle, a lead mounting ring, a cross groove, a horizontal sliding way and a vertical sliding way, meanwhile, the driving needle is connected with the longitudinal shaft and the transverse shaft, the longitudinal sliding block is driven to move through the transverse shaft, the transverse sliding block is driven to move through the longitudinal shaft, the elliptical needle is connected with the bottom ends of the longitudinal sliding block and the transverse sliding block, and accordingly, the ellipse and the circle can be drawn quickly and conveniently;
meanwhile, the length of the semi-long axis of the drawn ellipse can be quickly adjusted by adjusting the distance between a lead ring arranged on the elliptical needle and the fixed rotating shaft, and then the length of the driving needle from the center of the drawing disk is adjusted, so that the semi-focal length of the drawn ellipse can be quickly adjusted, the drawn ellipse has adjustability, and the actual drawing requirements of the students in the current department of industry are met.
2. The annular array with 3.4.5.6 common numbers is realized by the application of the annular array triangle; the angle gauge needle is added in the angle gauge, so that the angle can be measured and drawn more conveniently and rapidly; the ruler has the functions of limited length and infinite measurement through the existence of the movable sliding block; the angle bisector of any angle can be quickly drawn through the 5 mm hollow circle.
3. The invention has the characteristics of small volume, comprehensive functions and portability, and meanwhile, the invention has high use efficiency, makes the circle drawn in a sliding mode more smooth and smoother, and has adjustability, so that the invention is particularly suitable for the field of manual drawing of mechanical drawings by students in the department of industry.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of a first layer of ruler layout according to the present invention;
FIG. 3 is a schematic diagram of a second layer of ruler layouts according to the present invention;
FIG. 4 is a schematic view of the third layer of ruler layout according to the present invention;
FIG. 5 is a schematic diagram of a fourth layer ruler layout according to the present invention;
FIG. 6 is a detail view of the mechanical linkage of the present invention;
reference numbers in the figures: 1. a first layer of ruler layout; 2. a second layer of ruler layouts; 3. the third layer of ruler layout; 4. a fourth layer of ruler layouts; 5. drawing a disc; 6. a drive pin; 7. a disc groove; 8. a longitudinal axis; 9. a horizontal axis; 10. a longitudinal slide block; 11. a transverse slide block; 12. an elliptical needle; 13. installing a lead ring; 14. a cross groove; 15. a horizontal slideway; 16. a vertical slideway; 17. a 20 mm circular hole; 18. a circular array triangle; 19. a protractor; 20. fixing the rotating shaft; 21. a angulometer needle; 22. moving the elongated slider slot; 23. moving the slide block; 24. 5 mm hollow circle.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example (b): as shown in fig. 1-6, the invention provides a technical scheme, which is a comprehensive portable ruler, comprising a first layer of ruler layout 1, a second layer of ruler layout 2, a third layer of ruler layout 3 and a fourth layer of ruler layout 4, wherein the first layer of ruler layout 1, the second layer of ruler layout 2, the third layer of ruler layout 3 and the fourth layer of ruler layout 4 are all connected in a stacking manner, the first layer of ruler layout 1 is rotationally connected with a drawing disc 5, a disc groove 7 is formed in the inner side of the drawing disc 5, and a driving pin 6 is movably connected with the inner side of the disc groove 7;
a longitudinal shaft 8 is longitudinally connected at the position, corresponding to the drawing disc 5, of the inner side of the second layer of ruler layout 2, a transverse shaft 9 is vertically connected with the longitudinal shaft 8 in an intersecting manner, the longitudinal shaft 8 and the transverse shaft 9 both penetrate through the driving needle 6, the driving needle 6 is positioned in a disc groove 7 formed in the inner side of the drawing disc 5, the drawing disc 5 is connected with the first layer of ruler layout 1 in a rotating pair manner, so that the driving needle 6 is conveniently installed and arranged, a horizontal slideway 15 is horizontally arranged at the inner side edge of the second layer of ruler layout 2, a vertical slideway 16 is vertically arranged at the inner side edge of the second layer of ruler layout 2, the longitudinal shaft 8 and the transverse shaft 9 are respectively connected in the horizontal slideway 15 and the vertical slideway 16 in the second layer of ruler layout 2 in a sliding manner, the longitudinal shaft 8 penetrates through the transverse slider 11 and is positioned in the horizontal slideway 15 in the second layer of ruler layout 2, the transverse shaft 9 penetrates through the longitudinal, the connection and the sliding between the longitudinal shaft 8 and the transverse shaft 9 and between the transverse sliding block 11 and the longitudinal sliding block 10 are facilitated, and the horizontal sliding way 15 and the vertical sliding way 16 are respectively positioned on the upper surface and the lower surface of the second layer of ruler layout 2;
a cross groove 14 is formed in the inner side of the third layer of ruler layout 3, a longitudinal slide block 10 is connected to the inner side of the cross groove 14 in a sliding manner, a transverse slide block 11 is connected to the inner side of the cross groove 14 in a sliding manner, an elliptical needle 12 is movably connected to the inner side of the fourth layer of ruler layout 4 at a position corresponding to the cross groove 14, a lead-mounting ring 13 is mounted at the bottom of the inner side of the elliptical needle 12, the lead-mounting ring 13 is mounted on the elliptical needle 12, the position of the elliptical needle 12 is parallel to the fourth layer of ruler layout 4 and is connected with the longitudinal slide block 10 and the transverse slide block 11, and the longitudinal slide block 10 and the transverse slide block 11 are embedded in the cross groove 14 in the third layer of ruler layout 3, so that the elliptical needle;
a 20 mm round hole 17 is formed in one side, corresponding to the drawing disc 5, of the inner portion of the first layer of ruler layout 1, a 5 mm hollow circle 24 is formed in the position, located on one side of the 20 mm round hole 17, of the inner portion of the first layer of ruler layout 1, an annular array triangle 18 is embedded and connected to the inner side of the 20 mm round hole 17, the annular array triangle 18 penetrates through the first layer of ruler layout 1, the second layer of ruler layout 2, the third layer of ruler layout 3 and the fourth layer of ruler layout 4, and the annular part of the annular array triangle 18 is embedded in the second layer of ruler layout 2 and the third layer of ruler layout 3 in a sleeved mode;
first layer ruler layout 1, second layer ruler layout 2, third layer ruler layout 3 and the inboard bottom in fourth layer ruler layout 4 all run through and have seted up removal extension slider groove 22, remove the inboard embedding sliding connection in extension slider groove 22 and have a removal slider 23, remove the inboard swing joint of slider 23 and have a removal extension button, conveniently realize releasing specific length through removing the extension button.
The embedded protractor 19 is connected to the bottom position of the corresponding side of the drawing disc 5 in the first layer ruler layout 1, the fixed rotating shaft 20 is movably connected to the position corresponding to the protractor 19 in the fourth layer ruler layout 4, the protractor needle 21 is connected to the top of the fixed rotating shaft 20, the protractor 19 is of a hollow structure, the protractor needle 21 is arranged in the protractor 19, the protractor needle 21 moves in the protractor 19 through the fixed rotating shaft 20, and the installation and the rotation of the protractor needle 21 in the protractor 19 are facilitated.
The working principle and the using process of the invention are as follows: in the practical application process, when a circle needs to be drawn, the driving needle 6 moves in a disc groove 7 formed in the drawing disc 5, a hole is formed in the driving needle 6, a pencil is inserted into the driving needle 6, when the circle is drawn, the radius of the drawn circle can be adjusted by only inserting the pencil into the driving needle 6 and manually adjusting the distance between the driving needle 6 and the circle center of the drawing disc 5, and after the radius is adjusted, the multifunctional mechanical ruler is manually rotated for one circle according to the proper position required for drawing, and the drawn shape is a circle;
when an ellipse needs to be drawn, the upper and lower surfaces of the second layer of ruler layout 2 and the third layer of ruler layout 3 are respectively provided with a longitudinal axis 8, a transverse axis 9, a longitudinal slide block 10 and a transverse slide block 11, the bottom ends of the longitudinal slide block 10 and the transverse slide block 11 are connected with an elliptical needle 12, the longitudinal slide block 10 and the transverse slide block 11 are additionally perforated for the longitudinal axis 8 and the transverse axis 9 to pass through, so that the elliptical needle 12 can do elliptical motion while drawing a circle, a lead ring 13 is arranged on the elliptical needle 12, an ellipse with specific parameters can be drawn, therefore, when drawing an ellipse, lead is arranged on the lead ring 13, the distance from the lead ring 13 arranged on the elliptical needle 12 to a fixed rotating shaft 20 is adjusted, the distance is the length of a semi-major axis of the drawn ellipse, then the length of a driving needle 6 from the center of the drawing disk 5 is adjusted, the length is the difference between the semi-major axis and the semi-minor axis of the drawn ellipse, therefore, the difference between the semi-major axis and the semi minor axis and the size of the semi-minor axis can be adjusted when drawing And an ellipse, finally inserting the pencil into the driving needle 6, manually rotating to draw a circle, and moving the lead mounting ring 13 along with the circle to draw the ellipse with specific parameters;
when the length and the angle need to be measured, the movable slide block 23 can move in the movable extension slide block slot 22, when the longer linear length needs to be measured, the multifunctional mechanical ruler only needs to be pressed, the movable extension button is manually pushed out by a specific length, then the movable slide block 23 is pressed, the multifunctional mechanical ruler is pushed out, and the measurement of the size can be continued;
the angle gauge needle 21 is arranged in the angle gauge 19 in the multifunctional mechanical ruler, so that the angle gauge needle 21 can be rotated when an angle is measured or drawn, and a specific angle can be made simply, conveniently and quickly;
when the angle bisector needs to be drawn, the angle bisector is conveniently and quickly drawn through the 5 mm hollow circle 24 arranged on the multifunctional mechanical ruler, because an angle of any degree can be tangent to a very small circle, the operation only needs to internally tangent the 5 mm hollow circle 24 to a given angle, a marking point is drawn in a hole formed in the 5 mm hollow circle 24 by a pencil, then the point is connected with the top point of the measured angle, and the drawn straight line is the angle bisector of the angle;
when the common number of annular arrays are needed, marks are marked at the 4 equal division points and the 5 equal division points on the outer ring of the 20 mm round hole 17 through the annular array triangle 18, when the arrays are needed, only the annular array triangle 18 is needed to rotate to a proper position, the 3 or 6 array lines can be drawn by means of the annular array triangle 18, and the 4 or 5 array lines can be drawn through the marks on the periphery of the 20 mm round hole 17;
when the cutting function is needed, a space is reserved in the driving needle 6, the elliptic needle 12 and the movable sliding block 23 on the multifunctional mechanical ruler for inserting a cutter, when a circle is cut, the cutter is inserted into the driving needle 6 instead of a pencil, and the required circular surface can be cut on a paper surface by implementing the same operation as circle drawing; when the ellipse is cut, a cutter is inserted into a lead mounting ring 13, the lead mounting ring is mounted on an elliptical needle 12, parameters are adjusted as the adjustment of drawing the ellipse, and the needle 6 is manually rotated to draw the circle, so that the required elliptical surface can be cut; during straight line cutting, the cutter is placed on the movable sliding block 23, the ruler contour is pressed, and the movable sliding block 23 is pushed to finish cutting.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a synthesize portable ruler, includes first layer ruler layout (1), second layer ruler layout (2), third layer ruler layout (3) and fourth layer ruler layout (4), first layer ruler layout (1), second layer ruler layout (2), third layer ruler layout (3) and fourth layer ruler layout (4) all link to each other through the mode that piles up, its characterized in that: the first layer of ruler layout (1) is rotationally connected with a drawing disc (5), a disc groove (7) is formed in the inner side of the drawing disc (5), and a driving needle (6) is movably connected to the inner side of the disc groove (7);
the inner side of the second layer of ruler layout (2) is longitudinally connected with a longitudinal shaft (8) at a position corresponding to the drawing disc (5), the inner side of the second layer of ruler layout (2) is vertically crossed with the longitudinal shaft (8) to be connected with a transverse shaft (9), a horizontal slide way (15) is arranged in the horizontal direction of the inner side edge of the second layer of ruler layout (2), a vertical slide way (16) is arranged in the vertical direction of the inner side edge of the second layer of ruler layout (2), the longitudinal shaft (8) and the transverse shaft (9) are respectively connected in the horizontal slide way (15) and the vertical slide way (16) in a sliding mode, and the horizontal slide way (15) and the vertical slide way (16) are respectively located on the upper surface and the lower surface of the second layer of ruler layout (;
a cross groove (14) is formed in the inner side of the third layer of ruler layout (3), a longitudinal sliding block (10) is connected to the inner side of the cross groove (14) in a sliding mode, a transverse sliding block (11) is connected to the inner side of the cross groove (14) in a sliding mode, an elliptical needle (12) is movably connected to the position, corresponding to the cross groove (14), of the inner side of the fourth layer of ruler layout (4), and a lead mounting ring (13) is installed at the bottom of the inner side of the elliptical needle (12);
a 20-millimeter round hole (17) is formed in one side, corresponding to the drawing disc (5), of the inner part of the first layer ruler layout (1), a 5-millimeter hollow circle (24) is formed in one side, located on the 20-millimeter round hole (17), of the inner part of the first layer ruler layout (1), an annular array triangle (18) is connected to the inner side of the 20-millimeter round hole (17) in an embedded mode, the annular array triangle (18) penetrates through the first layer ruler layout (1), the second layer ruler layout (2), the third layer ruler layout (3) and the fourth layer ruler layout (4), and the annular part of the annular array triangle (18) is embedded in the second layer ruler layout (2) and the third layer ruler layout (3) in a sleeved mode;
first layer ruler layout (1), second layer ruler layout (2), third layer ruler layout (3) and fourth layer ruler layout (4) inboard bottom have all run through and have seted up removal extension slider groove (22), it has removal slider (23) to remove inboard embedding sliding connection in extension slider groove (22).
2. An integrated portable ruler according to claim 1 characterized in that: the lead containing ring (13) is assembled on the elliptical needle (12), the position of the elliptical needle (12) is parallel to the fourth layer of ruler layout (4) and is connected with the longitudinal sliding block (10) and the transverse sliding block (11), and the longitudinal sliding block (10) and the transverse sliding block (11) are embedded in the cross groove (14) in the third layer of ruler layout (3).
3. An integrated portable ruler according to claim 1 characterized in that: the longitudinal axis (8) penetrates through a horizontal slide way (15) of a transverse slide block (11) in the second layer of ruler layout (2), and the transverse axis (9) penetrates through a vertical slide way (16) of a longitudinal slide block (10) in the second layer of ruler layout (2).
4. An integrated portable ruler according to claim 1 characterized in that: the longitudinal shaft (8) and the transverse shaft (9) both penetrate through the driving needle (6), the driving needle (6) is positioned in a disc groove (7) formed in the inner side of the drawing disc (5), and the drawing disc (5) is connected with the first layer of ruler layout (1) in a revolute pair mode.
5. An integrated portable ruler according to claim 1 characterized in that: the utility model discloses a ruler, including first layer ruler layout (1), disc (5) are drawn to inside being located to correspond one side bottom position department embedding and being connected with protractor (19), fourth layer ruler layout (4) are inside to correspond position department swing joint with protractor (19) to have fixed pivot (20), fixed pivot (20) top is connected with angle gauge needle (21).
6. An integrated portable ruler according to claim 5 wherein: the protractor (19) is of a hollow structure, the protractor needle (21) is arranged in the protractor (19), and the protractor needle (21) moves in the protractor (19) through the fixed rotating shaft (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011551369.3A CN112721506A (en) | 2020-12-24 | 2020-12-24 | Comprehensive portable ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011551369.3A CN112721506A (en) | 2020-12-24 | 2020-12-24 | Comprehensive portable ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112721506A true CN112721506A (en) | 2021-04-30 |
Family
ID=75615273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011551369.3A Pending CN112721506A (en) | 2020-12-24 | 2020-12-24 | Comprehensive portable ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112721506A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2165005Y (en) * | 1993-06-19 | 1994-05-18 | 涂克仁 | Instrument for drawing ellipses and circle |
| CN2175115Y (en) * | 1993-02-08 | 1994-08-24 | 刘绍勇 | Ellipse compass |
| CN2336979Y (en) * | 1998-05-25 | 1999-09-08 | 柴彪 | Multi-function drawing instrument |
| CN2651004Y (en) * | 2003-10-24 | 2004-10-27 | 林鑫 | Ellipsograph |
| CN204641191U (en) * | 2015-03-31 | 2015-09-16 | 郭光增 | A kind of ellipsograph |
| CN205130739U (en) * | 2015-11-03 | 2016-04-06 | 彭代欣 | Elliptic trammel |
| CN205705884U (en) * | 2016-04-18 | 2016-11-23 | 中国人民解放军第二炮兵工程大学 | A kind of integrated teaching drawing apparatus |
| CN206812670U (en) * | 2017-03-08 | 2017-12-29 | 湖南人文科技学院 | A kind of aid of mathematics several teaching drawing |
| CN109203793A (en) * | 2018-10-27 | 2019-01-15 | 吴继帅 | A kind of oval teaching auxiliary drawing tools |
| CN208789355U (en) * | 2018-05-22 | 2019-04-26 | 李明素 | One kind is for showing elliptical teaching apparatus for mathematics |
-
2020
- 2020-12-24 CN CN202011551369.3A patent/CN112721506A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2175115Y (en) * | 1993-02-08 | 1994-08-24 | 刘绍勇 | Ellipse compass |
| CN2165005Y (en) * | 1993-06-19 | 1994-05-18 | 涂克仁 | Instrument for drawing ellipses and circle |
| CN2336979Y (en) * | 1998-05-25 | 1999-09-08 | 柴彪 | Multi-function drawing instrument |
| CN2651004Y (en) * | 2003-10-24 | 2004-10-27 | 林鑫 | Ellipsograph |
| CN204641191U (en) * | 2015-03-31 | 2015-09-16 | 郭光增 | A kind of ellipsograph |
| CN205130739U (en) * | 2015-11-03 | 2016-04-06 | 彭代欣 | Elliptic trammel |
| CN205705884U (en) * | 2016-04-18 | 2016-11-23 | 中国人民解放军第二炮兵工程大学 | A kind of integrated teaching drawing apparatus |
| CN206812670U (en) * | 2017-03-08 | 2017-12-29 | 湖南人文科技学院 | A kind of aid of mathematics several teaching drawing |
| CN208789355U (en) * | 2018-05-22 | 2019-04-26 | 李明素 | One kind is for showing elliptical teaching apparatus for mathematics |
| CN109203793A (en) * | 2018-10-27 | 2019-01-15 | 吴继帅 | A kind of oval teaching auxiliary drawing tools |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20160332294A1 (en) | Marking template tool | |
| CN112721506A (en) | Comprehensive portable ruler | |
| CN206812247U (en) | A kind of trimming machine for stones with laser positioning function | |
| CN212653657U (en) | Firm type locating component with adjust size | |
| CN209257730U (en) | A kind of multi-functional Higher Mathematics Teaching drawing board | |
| CN215618241U (en) | Cutting device for accurate reflective membrane cuts | |
| CN211054801U (en) | Ellipsograph | |
| US2552215A (en) | Instrument for drawing curved lines | |
| CN211918210U (en) | Mathematics teaching aid | |
| CN206316444U (en) | A kind of small-sized thin layer cutting machine for laboratory | |
| CN111775596A (en) | Arc drawing device for mathematical education | |
| CN208052305U (en) | A kind of brick cutting machine | |
| CN217347298U (en) | Curve drawing device for mathematics | |
| CN212499641U (en) | Curve drawing board for mathematical education | |
| CN213056529U (en) | Multifunctional teaching ruler | |
| CN219838375U (en) | Elliptic drawing device | |
| US3393453A (en) | Long radius template, carriage and scribing scale | |
| CN213864323U (en) | Construction equipment construction is with pressing from both sides mechanism of getting with adjusting structure | |
| CN220756727U (en) | Automatic line drawing machine for vamp processing | |
| CN213199299U (en) | Drawing rule for mechanical drawing | |
| CN219079925U (en) | Elastic high-thermal-insulation double-sided polar fleece production equipment | |
| CN206170050U (en) | Ruling tool | |
| CN110695949B (en) | Space circle scriber for pipeline scribing | |
| CN220146077U (en) | Accurate positioning die cutting mechanism of die cutting machine | |
| CN220179318U (en) | Auxiliary teaching scriber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210430 |