CN201229686Y - A three equality angle dividing instrument - Google Patents
A three equality angle dividing instrument Download PDFInfo
- Publication number
- CN201229686Y CN201229686Y CNU2008200595712U CN200820059571U CN201229686Y CN 201229686 Y CN201229686 Y CN 201229686Y CN U2008200595712 U CNU2008200595712 U CN U2008200595712U CN 200820059571 U CN200820059571 U CN 200820059571U CN 201229686 Y CN201229686 Y CN 201229686Y
- Authority
- CN
- China
- Prior art keywords
- edge
- limit
- trisection
- handle
- angle
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to an angle trisection instrument, which is characterized in that the trisection instrument comprises a handle edge, wherein, the middle part of the handle edge is movably hinged with a diamond frame through a hinge shaft, and one edge, which is not connected with the handle edge, of the diamond frame is provided with an extension edge, and the extension edge is connected with handle edge through a fixed point that is arranged on the handle edge, and the extension edge can slide along the fixed point, and the distance from the fixed point to the hinge shaft is equal to the edge length of the diamond frame. The top point, which is far away from the hinge shaft, of the counter edge of the extension edge of the diamond frame is provided with a punching hole. Compared with the prior art, the trisection instrument has simple structure and convenient application, and can complete the trisection of the angle under the condition without a winch, and is convenient to demonstrate.
Description
Technical field
The utility model relates to the stationery technical field, concrete relates to a kind of angle trisection instrument that can any angle of trisection easy to use simple in structure.
Background technology
In the prior art, the trisection of an angle instrument, general structure more complicated, though can the trisection of an angle, the ten minutes out of true, and also general angle trisection instrument is made of base plate, pointer, crank, uses very complicated, inconvenient.
The utility model content
Technical problem to be solved in the utility model is, angle trisection instrument a kind of simple in structure, easy to use is provided.
In order to address the above problem the technical solution of the utility model is such:
A kind of angle trisection instrument, it is characterized in that, comprise a handle limit, the middle part on described handle limit is movably hinged a diamond by a hinge, have one on one side that diamond and handle limit do not join and prolong the limit, prolonging the limit and be connected with the handle limit by a point of fixity that is arranged on the handle limit, can slide along point of fixity in described prolongation limit, and described point of fixity equals the length of side of diamond to the distance of hinge.
Be provided with one away from the summit of hinge on the opposite side on the prolongation limit of described diamond and get the hole ready.
Beneficial effect, the utility model is simple in structure, and is easy to use, can finish trisection of an angle under the situation by crank not, and demonstration is convenient.
Description of drawings
Describe the utility model in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model user mode synoptic diagram.
Fig. 3 is the synoptic diagram after the trisection of an angle.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, a kind of angle trisection instrument, comprise handle limit 1, handle limit 1 is provided with hinge A and point of fixity E, the hinged diamond 2 at the A place on handle limit 1, the length of side of diamond 2 equals the distance between an AE, other three summits of diamond 2 are respectively B, C, D, and limit CD has one and prolongs limit DE, prolonging limit DE can slide along point of fixity E, be provided with one at the B of described diamond 2 point place and get hole 21 ready, can conveniently get the usefulness that makes marks ready, the corresponding in addition indication limit 11 that has a prolongation in 1 upper end, handle limit.
Referring to Fig. 2 and Fig. 3, illustrate below, how to use the utility model to carry out trisection of an angle, the angle of desiring trisection is ∠ MON, O is that summit, OM, ON are the limit, at first the A point of angle trisection instrument is alignd with the O point and keep motionless, angle of rotation trisection instrument makes the OM limit at AE limit and angle on same straight line, and pulling diamond 2 makes invocation point C on the ON of limit, make a call to a mark P in the hole of getting ready that B is ordered then, remove angle trisection instrument, connect OP, then ∠ PON is 1/3rd jiaos of ∠ MON.
Compared with prior art, the utility model is simple in structure, and is easy to use, can finish trisection of an angle under the situation by crank not, and demonstration is convenient.
More than show and described ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1, a kind of angle trisection instrument, it is characterized in that, comprise a handle limit, the middle part on described handle limit is movably hinged a diamond by a hinge, have one on one side that diamond and handle limit do not join and prolong the limit, prolonging the limit and be connected with the handle limit by a point of fixity that is arranged on the handle limit, can slide along point of fixity in described prolongation limit, and described point of fixity equals the length of side of diamond to the distance of hinge.
2, a kind of angle according to claim 1 trisection instrument is characterized in that, is provided with one away from the summit of hinge on the opposite side on the prolongation limit of described diamond and gets the hole ready.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200595712U CN201229686Y (en) | 2008-06-11 | 2008-06-11 | A three equality angle dividing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200595712U CN201229686Y (en) | 2008-06-11 | 2008-06-11 | A three equality angle dividing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201229686Y true CN201229686Y (en) | 2009-04-29 |
Family
ID=40634629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200595712U Expired - Fee Related CN201229686Y (en) | 2008-06-11 | 2008-06-11 | A three equality angle dividing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201229686Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570100B (en) * | 2009-06-01 | 2012-12-05 | 徐特灿 | Trisection gauge of plane angle |
-
2008
- 2008-06-11 CN CNU2008200595712U patent/CN201229686Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570100B (en) * | 2009-06-01 | 2012-12-05 | 徐特灿 | Trisection gauge of plane angle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201229686Y (en) | A three equality angle dividing instrument | |
| CN207808854U (en) | A kind of multifunctional teaching ruler | |
| CN202357719U (en) | Elliptical compass | |
| CN201808354U (en) | Multifunctional foldable ruler | |
| CN202782372U (en) | Multi-functional mathematical teaching ruler | |
| CN201176082Y (en) | Multi-purpose rule for student | |
| CN203142174U (en) | Flexible rule | |
| CN204095355U (en) | A kind of special Multifunction teaching ruler of imparting knowledge to students | |
| CN201080085Y (en) | Multipurpose ruler | |
| CN200963988Y (en) | Portable compasses | |
| CN201357666Y (en) | Multifunctional set square | |
| CN201099102Y (en) | Fast angle-drawing equipment | |
| CN2920692Y (en) | Multipurpose combined protractor | |
| CN202525309U (en) | Fan for students | |
| CN201573428U (en) | Multifunctional ruler | |
| CN202448587U (en) | Multifunctional teaching ruler | |
| CN201483987U (en) | Multifunctional mathematical drawing device | |
| CN201086546Y (en) | Compass | |
| CN108068508A (en) | A kind of multifunctional assembled teaching aid | |
| CN207291432U (en) | A kind of product design drawing rule | |
| CN204177298U (en) | A kind of multi-functional protractor | |
| CN202192912U (en) | Multipurpose study aid | |
| CN201172338Y (en) | Multipurpose ruler | |
| CN202413126U (en) | Mathematic drawing device | |
| CN202986532U (en) | Ruler convenient for drawing circles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090429 Termination date: 20100611 |