CN104527272B - A kind of Napier's compasses - Google Patents
A kind of Napier's compasses Download PDFInfo
- Publication number
- CN104527272B CN104527272B CN201410754549.XA CN201410754549A CN104527272B CN 104527272 B CN104527272 B CN 104527272B CN 201410754549 A CN201410754549 A CN 201410754549A CN 104527272 B CN104527272 B CN 104527272B
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- fixed
- fixing
- top board
- plate
- cotton rope
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/02—Compasses
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
The invention discloses a kind of Napier's compasses, including: expansion regulating mechanism and pen clip fixed mechanism; Described expansion regulating mechanism includes rotational lock mechanism, slidable adjustment focus mechanism and cotton rope retaining mechanism; Described slidable adjustment focus mechanism is slidably disposed in described rotational lock mechanism; Described cotton rope retaining mechanism is fixed in described rotational lock mechanism; Described pen clip fixed mechanism is connected on described cotton rope retaining mechanism. By the way, the present invention can go out successional curve by unicursal fast and accurately, can draw circle and oval, achieving one-object-many-purposes, adopt gear drive stable transmission reliable, precision is higher, the magnet of bottom can be adsorbed on blackboard, the Quick labor-saving when drawing, and is convenient for carrying.
Description
Technical field
The present invention relates to compasses field, particularly relate to a kind of Napier's compasses that can draw circle and ellipse.
Background technology
Current compasses can only be drawn circle or can only draw ellipse, method used by picture is oval substantially has use template draw ellipse and utilize compasses, ruler in conjunction with picture ellipse etc., use template to draw ellipse and have limitation, and utilize compasses, ruler in conjunction with picture ellipse, its program is too complicated, and line has error by hand between points. Existing adjustable ellipse compasses, application number 201110020178.9, this compasses debugging complexity, ellipse can only be drawn, and also need on blackboard, to skid off ellipse in teaching process, existing Ellipsograph does not reach this requirement.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of Napier's compasses, it is possible to draw the ellipse figure that arbitrary diameter circle is different with eccentricity, flexible adjustment, be easy to operate, precision higher.
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: provide a kind of Napier's compasses, including: expansion regulating mechanism and pen clip fixed mechanism; Described expansion regulating mechanism includes rotational lock mechanism, slidable adjustment focus mechanism and cotton rope retaining mechanism; Described slidable adjustment focus mechanism is slidably disposed in described rotational lock mechanism; Described cotton rope retaining mechanism is fixed in described rotational lock mechanism; Described pen clip fixed mechanism is connected on described cotton rope retaining mechanism;
Described rotational lock mechanism includes base and the fixing plate being rotatably arranged on base, the rotatable gear that is equipped with on fixing plate, described fixing plate is positioned at gear both sides and has two parallel chutes, and fixing plate also has draw-in groove;
Described slidable adjustment focus mechanism includes slide rule, tooth bar, threading block and sliding panel, and slide rule, tooth bar, threading block and sliding panel all have a pair; Article two, tooth bar is embedded on two slide rules respectively, and two pieces of sliding panels are slidably enclosed within two slide rules respectively, and each sliding panel is fixed with a threading block; Said two slide rule is separately positioned in two chutes of described fixing plate, tooth bar and described gear drive;
Described cotton rope retaining mechanism includes T-shaped axle and is enclosed within wire spool on T-shaped axle, and the T-shaped end of T-shaped axle is arranged in the draw-in groove of fixing plate, and wire spool is wound with cotton rope;
Described pen clip fixed mechanism includes rotating bar, fixed block and the pen cap, and the pen cap is fixed on fixed block lower end, rotates bar and is rotatably arranged on fixed block side, and described rotation bar is provided with wire loop; Cotton rope one end on described wire spool is wound on wire spool, and the cotton rope other end sequentially passes through a threading block and rotates the wire loop of bar and be fixed on another threading block.
Preferably, described base includes magnet, magnet fixed cover, fixed cover pressing plate, middle plate and upper plate, and fixed cover pressing plate is provided with rotation hole and fixing groove, and middle plate is provided with circular protrusions; Described magnet and magnet fixed cover are fixed, described fixed cover pressing plate is fixed on magnet fixed cover, the circular protrusions of described middle plate is assemblied in the rotation hole of fixed cover pressing plate, and described upper plate and middle plate are threaded connection, and described fixing plate is connected fixing with upper plate; Described fixing plate is provided with rotary fixing screw bolt, and rotary fixing screw bolt is through fixing plate and is limited in the fixing groove of fixed cover pressing plate.
Preferably, described sliding panel includes slip top board and slip lower shoe, and slip top board is slidably stuck on described slide rule; Described slip lower shoe is located at slide rule lower end and fixes with described slip top board; Described slip top board side is provided with the fixing bolt of slip, and the fixing bolt that slides through slip top board and is against slide rule side; Described slide rule two ends are fixed with block.
Preferably, described fixing plate upper end is fixed with fixing top board, and the T-shaped end of slide rule, gear and T-shaped axle is stated in fixing top board residence; T-shaped axle is through fixing top board, and T-shaped axle top is fixed with locking wire screw, and wire spool is enclosed within T-shaped axle and is limited between fixing top board and locking wire screw.
Preferably, described pen clip fixed mechanism also includes holding rod and paintbrush; Described holding rod is spindle rotationally arranged in described fixed block top, and holding rod centrage is with described pen cap centrage on the same line; It is equipped with snap ring between described holding rod and fixed block and between rotation bar and fixed block; Described paintbrush is stuck in the described pen cap.
Preferably, described slip top board is fixed with snap ring; Snap ring is between two slide rules.
The invention has the beneficial effects as follows: the present invention can go out successional curve by unicursal fast and accurately, circle can be drawn and oval, it is achieved that one-object-many-purposes, adopting gear drive stable transmission reliable, precision is higher, and the magnet of bottom can be adsorbed on blackboard, the Quick labor-saving when drawing, is convenient for carrying.
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention a kind of Napier's compasses one preferred embodiment;
Fig. 2 is the exploded perspective view of the expansion regulating mechanism of shown a kind of Napier's compasses;
Fig. 3 is the exploded perspective view of the pen clip fixed mechanism of shown a kind of Napier's compasses;
Fig. 4 is perspective view during shown a kind of Napier's compasses drafting minimum focus ellipse;
Fig. 5 is perspective view during shown a kind of Napier's compasses drafting maximum focal length ellipse;
Fig. 6 is perspective view during shown a kind of Napier's compasses drafting smallest circle;
Fig. 7 is perspective view during shown a kind of Napier's compasses drafting greatest circle;
Fig. 8 is principle schematic during shown a kind of Napier's compasses drafting ellipse;
Fig. 9 is that the principle schematic of fine setting major axis radius during ellipse drawn by shown a kind of Napier's compasses;
Figure 10 is the principle schematic that bowlder drawn by shown a kind of Napier's compasses;
In accompanying drawing, the labelling of each parts is as follows: 1, magnet; 2, magnet fixed cover; 3, fixed cover pressing plate; 4, middle plate; 5, upper plate; 6, fixing plate; 7, gear; 8, rotary fixing screw bolt; 9, threading block; 10, slip top board; 11, slide rule; 12, block; 13, slide fixing bolt; 14, tooth bar; 15, slip lower shoe; 16, locking wire screw; 17, wire spool; 18, fixing top board; 19, T-shaped axle; 20, holding rod; 21, snap ring; 22, bar is rotated; 23, fixed block; 24, the pen cap; 25, paintbrush; 26, snap ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention being made apparent clear and definite defining.
Referring to Fig. 1 to Figure 10, the embodiment of the present invention includes:
A kind of Napier's compasses, including: expansion regulating mechanism and pen clip fixed mechanism; Described expansion regulating mechanism includes rotational lock mechanism, slidable adjustment focus mechanism and cotton rope retaining mechanism; Described slidable adjustment focus mechanism is slidably disposed in described rotational lock mechanism; Described cotton rope retaining mechanism is fixed in described rotational lock mechanism; Described pen clip fixed mechanism is connected on described cotton rope retaining mechanism.
Described rotational lock mechanism includes magnet 1, magnet fixed cover 2, fixed cover pressing plate 3, middle plate 4 and upper plate 5 and fixing plate 6, and fixed cover pressing plate 3 is provided with rotation hole and fixing groove, and middle plate 4 is provided with circular protrusions; Described magnet 1 is fixed with magnet fixed cover 2, described fixed cover pressing plate 3 is fixed on magnet fixed cover 2, the circular protrusions of described middle plate 4 is assemblied in the rotation hole of fixed cover pressing plate 3, and described upper plate 5 is threaded connection with middle plate 4, and described fixing plate 6 is connected fixing with upper plate 5; Described fixing plate 6 is provided with rotary fixing screw bolt 8, and rotary fixing screw bolt 8 is through fixing plate 6 and is limited in the fixing groove of fixed cover pressing plate 3, it is prevented that slidable adjustment focus mechanism rotates in use; The rotatable gear 7 that is equipped with on fixing plate 6, described fixing plate 6 is positioned at gear 7 both sides and has two parallel chutes, and fixing plate 6 also has draw-in groove.
Described slidable adjustment focus mechanism includes slide rule 11, tooth bar 14, threading block 9 and sliding panel, and slide rule 11, tooth bar 14, threading block 9 and sliding panel all have a pair; Article two, tooth bar 14 is embedded on two slide rules 11 respectively, and two pieces of sliding panels are slidably enclosed within two slide rules 11 respectively, and each sliding panel is fixed with a threading block 9; Said two slide rule 11 is separately positioned in two chutes of described fixing plate 6, tooth bar 14 and the transmission of described gear 7; Described sliding panel includes slip top board 10 and slip lower shoe 15, and slip top board 10 is slidably stuck on described slide rule 11; Described slip lower shoe 15 is located at slide rule 11 lower end and fixes with described slip top board 10;Described slip top board 10 side is provided with the fixing bolt 13 of slip, and the fixing bolt 13 that slides through slip top board 10 and is against slide rule 11 side, and after sliding panel regulates position, with sliding, sliding panel fixed by fixing bolt 13; Described slide rule 11 two ends are fixed with block 12, it is prevented that sliding panel is from landing slide rule 11; Described slip top board 10 is fixed with snap ring 26; Pen clip fixed mechanism, between two slide rules 11, is stuck in snap ring by snap ring 26 when drawing bowlder.
Described cotton rope retaining mechanism includes fixing top board 18, T-shaped axle 19 and is enclosed within wire spool 17 on T-shaped axle 19, the T-shaped end of T-shaped axle 19 is arranged in the draw-in groove of fixing plate 6, fixing top board 18 is fixed on fixing plate 6, and fixing top board 18 covers the T-shaped end of described slide rule 11, gear 7 and T-shaped axle 19; T-shaped axle 19 is through fixing top board 18, and T-shaped axle 19 top is fixed with locking wire screw 16, and wire spool 17 is enclosed within T-shaped axle 19 and is limited between fixing top board 18 and locking wire screw 16 and is wound with cotton rope on wire spool 17.
Described fixing plate 6, gear 7, slide rule 11, tooth bar 14, fixing top board 18 form gears slip mechanism; Gear 7 can slide on fixing plate 6, and fixing top board 18 limits gear 7, slide rule 11, tooth bar 14; Gear is band carry-over bar 7 when rotating, and slide rule 11 moves in chute, can accurately be regulated round radius and oval focal length by gear drive.
Described pen clip fixed mechanism includes holding rod 20, rotates bar 22, fixed block 23, the pen cap 24 and paintbrush 25, and the pen cap 24 is fixed on fixed block 23 lower end, and paintbrush 25 is stuck in the described pen cap 24; Holding rod 20 is spindle rotationally arranged in described fixed block 23 top, and holding rod 20 centrage is with the described pen cap 24 centrage on the same line; Rotating bar 22 and be rotatably arranged on fixed block 23 side, described rotation bar 22 is provided with wire loop; It is equipped with snap ring 21 between described holding rod 20 and fixed block 23 and between rotation bar 22 and fixed block 23; Cotton rope one end on described wire spool 17 is wound on wire spool 17, and the cotton rope other end sequentially passes through a threading block 9 and rotates the wire loop of bar 22 and be fixed on another threading block 9.
When drawing oval, it is known that a and c, by oval formula a2-b2=c2It is calculated drawing b, as shown in Figure 8, now a=L3+L4, in right angled triangle �� ABC, hypotenuse is L3+L4-L7, and long limit is 2L1+L6, and minor face is L7, and the requirement according to structural design, show that the essential condition drawing oval figure is:
(L3+L4-L7)2>(2L1+L6)2+L72
Ellipse drawing scheme is:
Determine major axis radius a: make slide rule 11 and tooth bar 14 slide on fixing plate 6 by unclamping the fixing bolt 13 of slip, when slidable adjustment focus mechanism is positioned at two ends, left and right extreme position, be L1 according to the align left end reading place X of slide rule of fixing plate 6, now a=L1;
Fine setting major axis radius a: make slidable adjustment focus mechanism slide on slide rule by unclamping the fixing bolt 13 of slip, aligns the right side reading Y of slide rule for determining L5 according to fixing plate 6, as it is shown in figure 9, now a=L1-L5;
Tension nylon rope keeps tensile force, can draw ellipse around the center of pen clip fixed mechanism.
Draw bowlder, slide rule 11 and tooth bar 14 is made to slide on fixing plate 6 by unclamping the fixing bolt 13 of slip, when arriving specified size D, locking is slided and is fixed bolt nail 13, pen clip fixed mechanism is fixed in snap ring 26, now unclamp rotary fixing screw bolt 8, with the center of rotational lock mechanism for initial point, draw circle, as described in Figure 10.
Present invention unicursal fast and accurately goes out successional curve, can draw circle and oval, it is achieved that one-object-many-purposes, adopts gear drive stable transmission reliable, and precision is higher, and the magnet of bottom can be adsorbed on blackboard, the Quick labor-saving when drawing, and is convenient for carrying.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (6)
1. Napier's compasses, it is characterised in that including: expansion regulating mechanism and pen clip fixed mechanism; Described expansion regulating mechanism includes rotational lock mechanism, slidable adjustment focus mechanism and cotton rope retaining mechanism; Described slidable adjustment focus mechanism is slidably disposed in described rotational lock mechanism; Described cotton rope retaining mechanism is fixed in described rotational lock mechanism; Described pen clip fixed mechanism is connected on described cotton rope retaining mechanism;
Described rotational lock mechanism includes base and the fixing plate (6) being rotatably arranged on base, fixing plate (6) is above rotatable is equipped with gear (7), described fixing plate (6) is positioned at gear (7) both sides and has two parallel chutes, fixing plate (6) also has draw-in groove;
Described slidable adjustment focus mechanism includes slide rule (11), tooth bar (14), threading block (9) and sliding panel, and slide rule (11), tooth bar (14), threading block (9) and sliding panel all have a pair; Article two, tooth bar (14) is embedded on two slide rules (11) respectively, and two pieces of sliding panels are slidably enclosed within two slide rules (11) respectively, and each sliding panel is fixed with a threading block (9); Said two slide rule (11) is separately positioned in two chutes of described fixing plate (6), tooth bar (14) and described gear (7) transmission;
Described cotton rope retaining mechanism includes T-shaped axle (19) and is enclosed within the upper wire spool (17) of T-shaped axle (19), and the T-shaped end of T-shaped axle (19) is arranged in the draw-in groove of fixing plate (6), and wire spool is wound with cotton rope on (17);
Described pen clip fixed mechanism includes rotating bar (22), fixed block (23) and the pen cap (24), the pen cap (24) is fixed on fixed block (23) lower end, rotating bar (22) and be rotatably arranged on fixed block (23) side, described rotation bar (22) is provided with wire loop; Cotton rope one end on described wire spool (17) is wound on wire spool (17), and the cotton rope other end sequentially passes through a threading block (9) and rotates the wire loop of bar (22) and be fixed on another threading block (9).
2. a kind of Napier's compasses according to claim 1, it is characterized in that: described base includes magnet (1), magnet fixed cover (2), fixed cover pressing plate (3), middle plate (4) and upper plate (5), fixed cover pressing plate (3) is provided with rotation hole and fixing groove, and middle plate (4) is provided with circular protrusions; Described magnet (1) is fixed with magnet fixed cover (2), described fixed cover pressing plate (3) is fixed on magnet fixed cover (2), the circular protrusions of described middle plate (4) is assemblied in the rotation hole of fixed cover pressing plate (3), described upper plate (5) and middle plate (4) are threaded connection, and described fixing plate (6) is connected fixing with upper plate (5); Described fixing plate (6) is provided with rotary fixing screw bolt (8), and rotary fixing screw bolt (8) is through fixing plate (6) and is limited in the fixing groove of fixed cover pressing plate (3).
3. a kind of Napier's compasses according to claim 1, it is characterised in that: described sliding panel includes slip top board (10) and slip lower shoe (15), and slip top board (10) is slidably stuck on described slide rule (11); Described slip lower shoe (15) is located at slide rule (11) lower end and fixes with described slip top board (10); Described slip top board (10) side is provided with the fixing bolt (13) of slip, and the fixing bolt (13) that slides through slip top board (10) and is against slide rule (11) side; Described slide rule (11) two ends are fixed with block (12).
4. a kind of Napier's compasses according to claim 1, it is characterised in that: described fixing plate (6) upper end is fixed with fixing top board (18), and fixing top board (18) covers the T-shaped end of described slide rule (11), gear (7) and T-shaped axle (19); T-shaped axle (19) is through fixing top board (18), and T-shaped axle (19) top is fixed with locking wire screw (16), and wire spool (17) is enclosed within T-shaped axle (19) and above and is limited between fixing top board (18) and locking wire screw (16).
5. a kind of Napier's compasses according to claim 1, it is characterised in that: described pen clip fixed mechanism also includes holding rod (20) and paintbrush (25); Described holding rod (20) is spindle rotationally arranged in described fixed block (23) top, and holding rod (20) centrage is with the described pen cap (24) centrage on the same line; It is equipped with snap ring (21) between described holding rod (20) and fixed block (23) and between rotation bar (22) and fixed block (23); Described paintbrush (25) is stuck in the described pen cap (24).
6. a kind of Napier's compasses according to claim 3, it is characterised in that: described slip top board (10) is fixed with snap ring (26); Snap ring (26) is positioned between two slide rules (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410754549.XA CN104527272B (en) | 2014-12-11 | 2014-12-11 | A kind of Napier's compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410754549.XA CN104527272B (en) | 2014-12-11 | 2014-12-11 | A kind of Napier's compasses |
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| Publication Number | Publication Date |
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| CN104527272A CN104527272A (en) | 2015-04-22 |
| CN104527272B true CN104527272B (en) | 2016-06-08 |
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| CN201410754549.XA Active CN104527272B (en) | 2014-12-11 | 2014-12-11 | A kind of Napier's compasses |
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| CN106079980A (en) * | 2016-07-02 | 2016-11-09 | 深圳市中幼国际教育科技有限公司 | A kind of mathematics lift isosceles triangle drawing tools |
| CN107364260B (en) * | 2017-07-20 | 2019-06-21 | 安徽鹰龙工业设计有限公司 | It is a kind of to make hyp tool gauge |
| CN109572286B (en) * | 2018-12-17 | 2020-07-03 | 刘景典 | Mathematical drawing device |
| CN110254087A (en) * | 2019-04-28 | 2019-09-20 | 上海誉伽文具有限公司 | A kind of Ellipsograph |
| CN112428726B (en) * | 2020-11-27 | 2022-04-08 | 绥化学院 | Plotter for applied mathematics teaching |
| CN113243595B (en) * | 2021-05-18 | 2022-12-16 | 山东工艺美术学院 | Multifunctional special ruler for clothing pattern design and use method thereof |
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| DE3126326A1 (en) * | 1981-07-03 | 1983-01-20 | Peter Maria 8976 Gunzesried Schneider | Multiple-cycloid compass |
| CN2141360Y (en) * | 1992-04-06 | 1993-09-01 | 黄分庆 | Adsorption type multipurpose compasses |
| CN2147121Y (en) * | 1992-06-30 | 1993-11-24 | 程宝林 | Precision ellipse gauge |
| US6308426B1 (en) * | 1998-11-26 | 2001-10-30 | Hyoun-Gyu Lim | Ellipsograph |
| CN2936783Y (en) * | 2006-07-25 | 2007-08-22 | 阿力甫·尼牙孜 | Compasses with scale |
| CN202088747U (en) * | 2011-05-31 | 2011-12-28 | 刘伟秋 | Teaching aid used for ellipse drawing and provided with long and short shafts capable of being adjusted conveniently |
| CN203766337U (en) * | 2014-03-20 | 2014-08-13 | 徐建 | Concentric elliptic trammel |
| CN204322843U (en) * | 2014-12-11 | 2015-05-13 | 苏州市职业大学 | A kind of Napier's compasses |
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2014
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3126326A1 (en) * | 1981-07-03 | 1983-01-20 | Peter Maria 8976 Gunzesried Schneider | Multiple-cycloid compass |
| CN2141360Y (en) * | 1992-04-06 | 1993-09-01 | 黄分庆 | Adsorption type multipurpose compasses |
| CN2147121Y (en) * | 1992-06-30 | 1993-11-24 | 程宝林 | Precision ellipse gauge |
| US6308426B1 (en) * | 1998-11-26 | 2001-10-30 | Hyoun-Gyu Lim | Ellipsograph |
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