CN112060813A - Angle divider capable of dividing any angle in multiple equal ways - Google Patents
Angle divider capable of dividing any angle in multiple equal ways Download PDFInfo
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- CN112060813A CN112060813A CN202010977275.6A CN202010977275A CN112060813A CN 112060813 A CN112060813 A CN 112060813A CN 202010977275 A CN202010977275 A CN 202010977275A CN 112060813 A CN112060813 A CN 112060813A
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- swing rod
- angle
- sliding block
- sub
- rod
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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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
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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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention relates to a protractor capable of equally dividing any angle, which comprises a plurality of sub-devices capable of being combined with each other, wherein each sub-device comprises: the end parts of the first swing rod, the second swing rod and the middle swing rod are hinged; a first sliding block capable of sliding is arranged on the first oscillating bar; a second sliding block capable of sliding is arranged on the second oscillating bar; a first connecting rod and a second connecting rod which can rotate in a mirror image mode are arranged on the middle oscillating rod; the first connecting rod is hinged with the first sliding block, and the second connecting rod is hinged with the second sliding block; the first swing rod and the second swing rod of the adjacent sub-devices are connected through a buckle, and the first sliding block and the second sliding block of the adjacent sub-devices are connected through a buckle. Also disclosed are a method for plotting the bisected angle and a method for measuring the bisected angle. The angle display device can divide any angle into a plurality of equal parts and can display the angle value of each divided angle after the equal division.
Description
Technical Field
The invention relates to the technical field of drawing tools, in particular to a protractor capable of equally dividing any angle.
Background
Arbitrary bisected angles are a difficult problem in geometry. At present, compasses and a ruler are mostly adopted in geometric drawing, and angles are equally divided, but the angles cannot be arbitrarily equally divided by using the two tools, so that the geometric drawing has certain limitation. And in geometry it has proved impossible to divide the angle arbitrarily with rulers and compasses.
Chinese patent CN103600607B discloses an "arbitrary angle trisection instrument" which can trisect arbitrary angles in a plane. However, it has the following problems: only any angle can be trisected, and the angle of the bisection angle cannot be measured.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides a protractor capable of equally dividing any angle, which can equally divide any angle and can display the angle value of each divided angle after equal division.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an angle divider capable of dividing any angle in multiple equal parts comprises a plurality of sub-devices which can be mutually combined,
the sub-device includes:
the end parts of the first swing rod, the second swing rod and the middle swing rod are hinged;
a first sliding block capable of sliding is arranged on the first oscillating bar;
a second sliding block capable of sliding is arranged on the second oscillating bar;
a first connecting rod and a second connecting rod which can rotate in a mirror image mode are arranged on the middle oscillating rod;
the first connecting rod is hinged with the first sliding block, and the second connecting rod is hinged with the second sliding block;
the first swing rod and the second swing rod of the adjacent sub-devices are connected through a buckle, and the first sliding block and the second sliding block of the adjacent sub-devices are connected through a buckle.
Further, the end parts of the first connecting rod and the second connecting rod are provided with gears which are meshed with each other.
Furthermore, a slidable middle sliding block is arranged on the middle oscillating bar, a double-sided rack is arranged on the middle sliding block, and gears which are in meshing transmission with the double-sided rack are arranged at the end parts of the first connecting rod and the second connecting rod.
Furthermore, a scale is arranged on the middle swing rod and is non-uniform.
Furthermore, a first sliding groove parallel to the length direction of the first swing rod is formed in the first swing rod, and a guide pin inserted into the first sliding groove is formed in the first sliding block;
the second swing rod is provided with a second sliding groove parallel to the length direction of the second swing rod, and the second sliding block is provided with a guide pin inserted in the second sliding groove;
the middle swing rod is provided with a middle sliding groove parallel to the length direction of the middle swing rod, and the middle sliding block is provided with a guide pin inserted in the middle sliding groove.
Furthermore, positioning grooves are formed in the two ends of the first swing rod and the first sliding block, positioning bosses matched with the positioning grooves are formed in the two ends of the second swing rod and the second sliding block, and the positioning grooves and the positioning bosses can be buckled with each other.
Furthermore, the outer end face of the positioning boss is provided with a magnet, the bottom face of the positioning groove is provided with a magnet, and the magnets of the boss and the groove can be magnetically attracted with each other.
A drawing method of equal division angles comprises the following steps:
a. taking n sub-device combinations;
b. adjusting an included angle between a first swing rod and a second swing rod of the sub-device to enable the first swing rod and the second swing rod arranged on the outermost side after combination to be aligned with the edge of the angle to be evenly divided;
c. the included angle between the first swing rod and the second swing rod of each sub-device is 1/n of the angle to be evenly divided.
A method for measuring an equal division angle comprises the following steps:
a. taking n sub-device combinations;
b. adjusting an included angle between a first swing rod and a second swing rod of the sub-device to enable the first swing rod and the second swing rod arranged on the outermost side after combination to be aligned with the edge of the angle to be evenly divided;
c. the included angle between the first swing rod and the second swing rod of each sub-device is 1/n of the angle to be evenly divided, and the scale ruler at the position corresponding to the middle sliding block is the angle value of 1/n of the angle to be evenly divided.
The invention has the beneficial effects that:
(1) through the combination of a plurality of sub-devices, a plurality of equal divisions of any angle can be realized, and the angle range capable of being equally divided is larger.
(2) The sub-devices are connected in a buckling mode through the positioning grooves and the positioning bosses, and the combination is more convenient.
(3) The angle value of each divided angle after being divided equally can be displayed through the scale ruler at the corresponding position of the middle sliding block.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view in another aspect of the present invention;
FIG. 3 is a schematic structural diagram of a first swing link according to the present invention;
FIG. 4 is a schematic structural diagram of a second swing link according to the present invention;
FIG. 5 is a schematic structural view of an intermediate swing link of the present invention;
FIG. 6 is a schematic structural view of an intermediate slide of the present invention;
FIG. 7 is a schematic view of the first slider structure of the present invention;
FIG. 8 is a schematic structural view of a second slider of the present invention;
FIG. 9 is a combination state diagram of the present invention;
FIG. 10 is another combination state diagram of the present invention;
FIG. 11 is a schematic illustration of the bisector angle of the present invention;
fig. 12 is a schematic structural view of another embodiment of the present invention.
In the figure:
1. the positioning mechanism comprises a first swing rod, 2, a first connecting rod, 3, a first sliding block, 4, an intermediate swing rod, 5, an intermediate sliding block, 6, a second swing rod, 7, a second connecting rod, 8, a second sliding block, 9, a positioning groove, 10, a positioning boss and 11, a guide pin column
101. First chute
301. First rotating shaft
401. Middle rotating shaft, 402 middle sliding groove, 403 graduated scale
501. Double-sided rack
601. Second chute
801. Second rotating shaft
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
An angle divider capable of dividing any angle in multiple equal parts is composed of several sub-units. When one corner is divided into N equal parts, N sub-devices are required to be combined. The sub-device includes: the end parts of the first swing rod 1, the second swing rod 6 and the middle swing rod 4 are hinged, and the first swing rod 1, the second swing rod 6 and the middle swing rod 4 can be made of engineering plastics. And the outer ends of the first swing rod 1, the second swing rod 6 and the middle swing rod 4 are provided with convex tips, the convex tip of the first swing rod 1 is collinear with the outer side edge of the first swing rod 1, the convex tip of the second swing rod 6 is collinear with the outer side edge of the first swing rod 1, and the convex tip of the middle swing rod 4 is collinear with the central line of the middle swing rod 4. When the device is used, the convex tips are positioned and drawn, so that the drawing and measuring results are more accurate.
The first swing rod 1 is provided with a first sliding block 3, the first swing rod 1 is provided with a first sliding groove 101 parallel to the length direction of the first swing rod, the first sliding block 3 is provided with two guide pins 11 inserted into the first sliding groove 101, and the first sliding block 3 can slide along the length direction of the first swing rod 1. The first slider 3 is provided with a first rotating shaft 301.
The second swing link 6 is provided with a second slide block 8, the second swing link 6 is provided with a second sliding groove 601 parallel to the length direction of the second swing link, the second slide block 8 is provided with two guide pins 11 inserted into the second sliding groove 601, and the second slide block 8 can slide along the length direction of the second swing link 6. The second slide block 8 is provided with a second rotating shaft 801
The middle swing rod 4 is provided with a middle rotating shaft 401, one end of the first connecting rod 2 and one end of the second connecting rod 7 are sleeved on the middle rotating shaft 401, the first connecting rod 2 and the second connecting rod 7 can rotate relative to the middle rotating shaft 401, and the first connecting rod 2 and the second connecting rod 7 rotate in a synchronous mirror image mode.
The end of the first link 2 is hinged with the first rotating shaft 301 of the first slider 3, and the end of the second link 7 is hinged with the second rotating shaft 801 of the second slider 8.
In order to achieve the synchronous mirror rotation of the first link 2 and the second link 7, it can be achieved in various ways, and two embodiments thereof are specifically described below.
Example 1
As shown in fig. 1-8, the intermediate swing link 4 is provided with an intermediate sliding block 5, the intermediate swing link 4 is provided with an intermediate sliding slot 402 parallel to the length direction thereof, and the intermediate sliding block 5 is provided with a guide pin 11 inserted into the intermediate sliding slot 402. The middle sliding block 5 is provided with a double-sided rack 501, and the end parts of the first connecting rod 2 and the second connecting rod 7 are provided with gears which are in meshing transmission with the double-sided rack 501. The middle swing rod 4 is provided with a graduated scale 403 for marking angles. Because the position of the intermediate slider 5 corresponds to the only included angle between the first swing rod 1 and the second swing rod 6, the numerical value of the graduated scale 403 at the position of the intermediate slider 5 corresponds to the only included angle between the first swing rod 1 and the second swing rod 6, and therefore, the graduated scale 403 is marked with a corresponding angle value, and the included angle between the first swing rod 1 and the second swing rod 6 can be measured through the reading of the graduated scale 403 at the position of the intermediate slider 5. To facilitate reading, graduated scale 403 is a non-uniform scale of one grid unit every 5 °.
Example 2
As shown in fig. 12, the ends of the first link 2 and the second link 7 are provided with gears engaged with each other, and the first link 2 and the second link 7 realize the effect of synchronous mirror rotation through the engagement transmission between the gears.
In order to facilitate the use, the sub-devices are detachably combined, and the combination easy to disassemble and assemble can be realized by adopting various modes such as bolts, buckles, magnets and the like. In detail, two ends of the first swing link 1 and the first slider 3 are provided with positioning grooves 9, two ends of the second swing link 6 and the second slider 8 are provided with positioning bosses 10 matched with the positioning grooves 9, and the positioning grooves 9 and the positioning bosses 10 are in interference fit to realize mutual buckling between the two. Furthermore, in order to enable the locking between the positioning groove 9 and the positioning boss 10 to be firmer, the outer end face of the positioning boss 10 is provided with a magnet, the bottom face of the positioning groove 9 is provided with a magnet, the magnets of the positioning boss 10 and the positioning groove 9 can be magnetically attracted with each other, and the connection between the positioning boss 10 and the positioning groove 9 is further strengthened through the magnetic attraction between the magnets of the positioning boss 10 and the positioning groove 9.
The device can be used for drawing the equal division angle and measuring the equal division angle, and particularly comprises the following steps:
drawing equal angle, comprising the following steps:
a. the method comprises the steps that n sub-devices are combined, the first swing rod 1 and the second swing rod 6 of the adjacent sub-devices are connected through corresponding positioning grooves 9 and positioning bosses 10 in a buckling mode, and the first sliding block 3 and the second sliding block 8 of the adjacent sub-devices are connected through corresponding positioning grooves 9 and positioning bosses 10 in a buckling mode.
b. And adjusting the included angle between the first swing rod 1 and the second swing rod 6 of the sub-device to enable the first swing rod 1 and the second swing rod 6 arranged on the outermost side after combination to be aligned with the edge of the angle to be equally divided.
c. The included angle between the first swing rod 1 and the second swing rod 6 of each sub device is 1/n of the angle to be evenly divided, the included angle between the middle swing rod 4 of each sub device and the first swing rod 1 and the second swing rod 6 is 1/2n of the angle to be evenly divided, and the equal lines of all the angles can be accurately positioned through the convex points arranged on the first swing rod 1, the second swing rod 6 and the middle swing rod 4.
Measuring the bisector angle, comprising the following steps:
a. the method comprises the steps that n sub-devices are combined, the first swing rod 1 and the second swing rod 6 of the adjacent sub-devices are connected through corresponding positioning grooves 9 and positioning bosses 10 in a buckling mode, and the first sliding block 3 and the second sliding block 8 of the adjacent sub-devices are connected through corresponding positioning grooves 9 and positioning bosses 10 in a buckling mode.
b. And adjusting the included angle between the first swing rod 1 and the second swing rod 6 of the sub-device to enable the first swing rod 1 and the second swing rod 6 arranged on the outermost side after combination to be aligned with the edge of the angle to be evenly divided.
c. The included angle between the first swing rod 1 and the second swing rod 6 of each sub-device is 1/n of the angle to be evenly divided, and the reading of the graduated scale 403 at the position corresponding to the middle sliding block 5 is the angle value of 1/n of the angle to be evenly divided.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. An angle divider capable of dividing any angle in multiple equal parts is characterized by comprising a plurality of sub-devices which can be mutually combined,
the sub-apparatus comprises:
the end parts of the first swing rod (1), the second swing rod (6) and the middle swing rod (4) are hinged;
a first sliding block (3) capable of sliding is arranged on the first oscillating bar (1);
a second sliding block (8) capable of sliding is arranged on the second swing rod (6);
a first connecting rod (2) and a second connecting rod (7) which can rotate in a mirror image mode are arranged on the middle swing rod (4);
the first connecting rod (2) is hinged with the first sliding block (3), and the second connecting rod (7) is hinged with the second sliding block (8);
the first swing rod (1) and the second swing rod (6) of the adjacent sub-devices are connected in a buckling mode, and the first sliding block (3) and the second sliding block (8) of the adjacent sub-devices are connected in a buckling mode.
2. The angle divider according to claim 1, wherein,
the end parts of the first connecting rod (2) and the second connecting rod (7) are provided with gears which are meshed with each other.
3. The angle divider according to claim 1, wherein,
the middle swing rod (4) is provided with a slidable middle sliding block (5), the middle sliding block (5) is provided with a double-sided rack (501), and gears which are in meshing transmission with the double-sided rack (501) are arranged at the end parts of the first connecting rod (2) and the second connecting rod (7).
4. The angle divider according to claim 5, wherein,
and a graduated scale (403) is arranged on the middle swing rod (4), and the graduated scale (403) is non-uniform.
5. A resolver according to any one of claims 1 to 4, which can equally divide any angle,
a first sliding groove (101) parallel to the length direction of the first swing rod (1) is formed in the first swing rod, and a guide pin (11) inserted into the first sliding groove (101) is formed in the first sliding block (3);
a second sliding groove (601) parallel to the length direction of the second swing rod (6) is formed in the second swing rod, and a guide pin (11) inserted into the second sliding groove (601) is formed in the second sliding block (8);
the middle swing rod (4) is provided with a middle sliding groove (402) parallel to the length direction of the middle swing rod, and the middle sliding block (5) is provided with a guide pin (11) inserted into the middle sliding groove (402).
6. A resolver according to any one of claims 1 to 4, which can equally divide any angle,
positioning grooves (9) are formed in the two ends of the first swing rod (1) and the first sliding block (3), positioning bosses (10) matched with the positioning grooves (9) are formed in the two ends of the second swing rod (6) and the second sliding block (8), and the positioning grooves (9) and the positioning bosses (10) can be buckled with each other.
7. The angle divider according to claim 6, wherein,
the outer end face of the positioning boss (10) is provided with a magnet, the bottom face of the positioning groove (9) is provided with a magnet, and the magnets of the positioning boss (10) and the positioning groove (9) can be magnetically attracted with each other.
8. A method for drawing an equal angle by using the angle divider capable of dividing any angle by more than equal amount according to any one of claims 1 to 7, comprising the steps of:
a. taking n sub-device combinations;
b. adjusting an included angle between a first swing rod (1) and a second swing rod (6) of the sub-device to enable the first swing rod (1) and the second swing rod (6) arranged on the outermost side after combination to be aligned with the edge of the angle to be evenly divided;
c. the included angle between the first swing rod (1) and the second swing rod (6) of each sub-device is 1/n of the angle to be evenly divided.
9. A method for measuring an equal angle by using the angle divider capable of dividing an arbitrary angle by more than equal intervals as claimed in claim 4, comprising the steps of:
a. taking n sub-device combinations;
b. adjusting an included angle between a first swing rod (1) and a second swing rod (6) of the sub-device to enable the first swing rod (1) and the second swing rod (6) arranged on the outermost side after combination to be aligned with the edge of the angle to be evenly divided;
c. an included angle between the first swing rod (1) and the second swing rod (6) of each sub-device is 1/n of an angle to be evenly divided, and a scale (403) at the position corresponding to the middle sliding block (5) is an angle value of 1/n of the angle to be evenly divided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010977275.6A CN112060813A (en) | 2020-09-17 | 2020-09-17 | Angle divider capable of dividing any angle in multiple equal ways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010977275.6A CN112060813A (en) | 2020-09-17 | 2020-09-17 | Angle divider capable of dividing any angle in multiple equal ways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112060813A true CN112060813A (en) | 2020-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010977275.6A Pending CN112060813A (en) | 2020-09-17 | 2020-09-17 | Angle divider capable of dividing any angle in multiple equal ways |
Country Status (1)
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| CN (1) | CN112060813A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115251589A (en) * | 2022-06-23 | 2022-11-01 | 淄博职业学院 | Automatic character proofreading device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB669509A (en) * | 1950-05-03 | 1952-04-02 | Michael George Francis Ventris | Improvements in or relating to perspective drawing instruments |
| JPS5595599A (en) * | 1979-01-12 | 1980-07-19 | Basf Ag | Index adjusting device for drawing board with index marking device |
| JPS57182101A (en) * | 1981-05-01 | 1982-11-09 | Ayao Tanaka | Method of equally dividing specified set angle and angle divider therefor |
| CN87216226U (en) * | 1987-12-08 | 1988-10-12 | 袁军 | Planar angle-dividing mechanism |
| CN2031955U (en) * | 1988-07-16 | 1989-02-01 | 黄世树 | Equiangular protractor series |
| CN2491245Y (en) * | 2001-06-05 | 2002-05-15 | 李志深 | Device for uniform dividing any angle |
| JP2008207531A (en) * | 2007-02-26 | 2008-09-11 | Shigeo Satake | Equally angle-dividing device of arbitrary angle |
| CN201423843Y (en) * | 2009-03-10 | 2010-03-17 | 曹容瀚 | Angle trisecting unit |
| CN205664769U (en) * | 2016-04-14 | 2016-10-26 | 中船黄埔文冲船舶有限公司 | Angle processing and angle measuring device with adjustable |
-
2020
- 2020-09-17 CN CN202010977275.6A patent/CN112060813A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB669509A (en) * | 1950-05-03 | 1952-04-02 | Michael George Francis Ventris | Improvements in or relating to perspective drawing instruments |
| JPS5595599A (en) * | 1979-01-12 | 1980-07-19 | Basf Ag | Index adjusting device for drawing board with index marking device |
| JPS57182101A (en) * | 1981-05-01 | 1982-11-09 | Ayao Tanaka | Method of equally dividing specified set angle and angle divider therefor |
| CN87216226U (en) * | 1987-12-08 | 1988-10-12 | 袁军 | Planar angle-dividing mechanism |
| CN2031955U (en) * | 1988-07-16 | 1989-02-01 | 黄世树 | Equiangular protractor series |
| CN2491245Y (en) * | 2001-06-05 | 2002-05-15 | 李志深 | Device for uniform dividing any angle |
| JP2008207531A (en) * | 2007-02-26 | 2008-09-11 | Shigeo Satake | Equally angle-dividing device of arbitrary angle |
| CN201423843Y (en) * | 2009-03-10 | 2010-03-17 | 曹容瀚 | Angle trisecting unit |
| CN205664769U (en) * | 2016-04-14 | 2016-10-26 | 中船黄埔文冲船舶有限公司 | Angle processing and angle measuring device with adjustable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115251589A (en) * | 2022-06-23 | 2022-11-01 | 淄博职业学院 | Automatic character proofreading device |
| CN115251589B (en) * | 2022-06-23 | 2024-04-19 | 淄博职业学院 | Automatic character correction device |
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Application publication date: 20201211 |