CN105835574A - Folding teaching ruler and using method thereof - Google Patents
Folding teaching ruler and using method thereof Download PDFInfo
- Publication number
- CN105835574A CN105835574A CN201610335326.9A CN201610335326A CN105835574A CN 105835574 A CN105835574 A CN 105835574A CN 201610335326 A CN201610335326 A CN 201610335326A CN 105835574 A CN105835574 A CN 105835574A
- Authority
- CN
- China
- Prior art keywords
- half chi
- chi
- left half
- right half
- arc
- 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
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
- B43L7/00—Straightedges
-
- 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
- B43L13/002—Angle intersecting devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/02—Rulers with scales or marks for direct reading
- G01B3/04—Rulers with scales or marks for direct reading rigid
- G01B3/06—Rulers with scales or marks for direct reading rigid folding
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention relates to a folding teaching ruler and a using method thereof. The folding teaching ruler comprises a left half ruler and a right half ruler, wherein an annular hinged seat is arranged at the lower part of one end, close to the right half ruler, of the left half ruler; a connecting part matched with the hinged seat is arranged at the lower part of one end, close to the left half ruler, of the right half ruler and is hinged with the hinged seat by a pin shaft; an arc-shaped concave part is formed at the upper part of one end, close to the right half ruler, of the left half ruler; a clamping groove is formed at the upper half part of the arc-shaped concave part; an arc-shaped convex part matched with the arc-shaped concave part is formed at the upper part of one end, close to the left half ruler, of the right half ruler; and a convex block matched with the clamping groove is correspondingly arranged at the upper plate of the arc-shaped convex part. The folding teaching ruler is simple in structure and convenient to carry, operate and use.
Description
Technical field
The present invention relates to a kind of folding teaching ruler and using method thereof.
Background technology
Colleges and universities' mechanical correlated curriculum teaching process often to be drawn, such as mechanical drawing etc.；Set square used by drawing is usually 500mm, the longest but also wide, it is impossible to puts in common daily bag used, carries inconvenience.Particularly garden in university is the biggest, uses to teacher and makes troubles；And with little chi, such as the chi of office, length is typically within 300mm, the figure drawn on blackboard is the least, inapplicable.
Summary of the invention
It is an object of the invention to provide a kind of folding teaching ruler and using method thereof, be not only simple in structure, and be convenient for carrying, easy for operation.
Technical program of the present invention lies in: a kind of folding teaching ruler, including left half chi and right half chi, described left half chi is provided with annular hinged seat near the bottom of right half chi one end, described right half chi is provided with, near the bottom of left half chi one end, the connecting portion matched with hinged seat, and be hinged with hinged seat through bearing pin, described left half chi is provided with arc-shaped depression portion near the top of right half chi one end, the first half of described arc-shaped depression portion is provided with draw-in groove, described right half chi is provided with, near the top of left half chi one end, the arc protuberance matched with arc-shaped depression portion, the upper board of described arc protuberance is correspondingly arranged on the projection matched with draw-in groove.
Further, described left half chi and the upper side edge of right half chi or lower side are provided with length scale mark.
Further, described hinged seat is provided with the angle index mark being zero degree starting point with the lower side of left half chi.
Further, described left half chi and a length of 25 ~ 30cm of right half chi.
The using method of above-mentioned folding teaching ruler, step is as follows:
By launching left half chi and right half chi, make right half chi arc protuberance snap in the arc-shaped depression portion of left half chi, to form long chi simultaneously in projection is stuck in draw-in groove, be used for drawing straight line and linear measure longimetry；With the lower side of left half chi for zero degree starting point, angular surveying or drafting angle are rotated by right half chi of folding around bearing pin.
Compared with prior art, the invention have the advantages that and be not only simple in structure, and after launching, length can be more than 500mm, folded length less than 300mm, can be put in bag together with books, be convenient for carrying again, it can in addition contain be used for picture angle, mechanical teaching is facilitated to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the semi-collapsed condition schematic diagram of the present invention；
Fig. 3 is the articulated structure schematic diagram of the present invention；
Fig. 4 is the A district enlarged drawing of Fig. 2 of the present invention；
In figure: the right half chi 21-connecting portion 22-arc protuberance 23-projection 3-bearing pin 4-length scale mark 5-angle index mark of the left half chi 11-hinged seat 12-arc-shaped depression portion 13-draw-in groove 2-of 1-.
Detailed description of the invention
For the features described above of the present invention and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing, it is described in detail below, but the present invention is not limited to this.
Referring to figs. 1 to Fig. 4
A kind of folding teaching ruler, including left half chi 1 and right half chi 2, described left half chi is provided with annular hinged seat 11 near the bottom of right half chi one end, described right half chi is provided with, near the bottom of left half chi one end, the connecting portion 21 matched with hinged seat, and be hinged with hinged seat through bearing pin 3, described left half chi is provided with arc-shaped depression portion 12 near the top of right half chi one end, the first half of described arc-shaped depression portion is provided with draw-in groove 13, described right half chi is provided with, near the top of left half chi one end, the arc protuberance 22 matched with arc-shaped depression portion, the upper board of described arc protuberance is correspondingly arranged on the projection 23 matched with draw-in groove, thus play guide effect by arc protuberance and arc-shaped depression portion, locking effect is completed by draw-in groove and protuberance.
In the present embodiment, described left half chi and the upper side edge of right half chi or lower side are provided with length scale mark 4, in order to complete linear measure longimetry and straight line is drawn.
In the present embodiment, described hinged seat is provided with the angle index mark 5 being zero degree starting point with the lower side of left half chi, in order to completing angular surveying or draw angle, described angle index mark is covered with hinged seat 3/4ths disc.
In the present embodiment, described left half chi and a length of 25 ~ 30cm of right half chi, in order to receive after folding.
The using method of above-mentioned folding teaching ruler, step is as follows:
By launching left half chi and right half chi, make right half chi arc protuberance snap in the arc-shaped depression portion of left half chi, complete locking simultaneously in projection is stuck in draw-in groove, thus form long chi, be used for drawing straight line and linear measure longimetry；With the lower side of left half chi for zero degree starting point, angular surveying or drafting angle are rotated by right half chi of folding around bearing pin.
The foregoing is only presently preferred embodiments of the present invention, for the ordinary skill in the art, according to the teachings of the present invention, the folding teaching ruler designing multi-form is not required to performing creative labour, the most all equalizations made according to scope of the present invention patent change, revise, replace and modification, all should belong to the covering scope of the present invention.
Claims (5)
1. a folding teaching ruler, it is characterized in that, including left half chi and right half chi, described left half chi is provided with annular hinged seat near the bottom of right half chi one end, described right half chi is provided with, near the bottom of left half chi one end, the connecting portion matched with hinged seat, and be hinged with hinged seat through bearing pin, described left half chi is provided with arc-shaped depression portion near the top of right half chi one end, the first half of described arc-shaped depression portion is provided with draw-in groove, described right half chi is provided with, near the top of left half chi one end, the arc protuberance matched with arc-shaped depression portion, the upper board of described arc protuberance is correspondingly arranged on the projection matched with draw-in groove.
Folding teaching ruler the most according to claim 1, it is characterised in that be provided with length scale mark on described left half chi and the upper side edge of right half chi or lower side.
Folding teaching ruler the most according to claim 2, it is characterised in that be provided with the angle index mark being zero degree starting point with the lower side of left half chi on described hinged seat.
4. according to the folding teaching ruler described in claim 1,2 or 3, it is characterised in that described left half chi and a length of 25 ~ 30cm of right half chi.
5. the using method of a folding teaching ruler as claimed in claim 3, it is characterised in that step is as follows:
By launching left half chi and right half chi, make right half chi arc protuberance snap in the arc-shaped depression portion of left half chi, to form long chi simultaneously in projection is stuck in draw-in groove, be used for drawing straight line and linear measure longimetry；With the lower side of left half chi for zero degree starting point, angular surveying or drafting angle are rotated by right half chi of folding around bearing pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335326.9A CN105835574A (en) | 2016-05-19 | 2016-05-19 | Folding teaching ruler and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610335326.9A CN105835574A (en) | 2016-05-19 | 2016-05-19 | Folding teaching ruler and using method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105835574A true CN105835574A (en) | 2016-08-10 |
Family
ID=56592908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610335326.9A Pending CN105835574A (en) | 2016-05-19 | 2016-05-19 | Folding teaching ruler and using method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105835574A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108176A (en) * | 2019-04-30 | 2019-08-09 | 威海柯西医疗科技有限公司 | A kind of folding flow diverter scale extension ruler |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905605A (en) * | 2009-06-05 | 2010-12-08 | 施秋阳 | Butted-type ruler |
| KR20110003145U (en) * | 2009-09-22 | 2011-03-30 | 한밭대학교 산학협력단 | Folding Type Ruler which have Bearing |
| CN201998680U (en) * | 2011-01-28 | 2011-10-05 | 德州学院 | Ruler for clothing structural drafting |
| CN202186187U (en) * | 2011-06-27 | 2012-04-11 | 胡馨文 | Novel ruler |
| CN202264551U (en) * | 2011-09-08 | 2012-06-06 | 于国锋 | Folding straight ruler |
| CN104180736A (en) * | 2013-05-27 | 2014-12-03 | 湖北文理学院 | Folding ruler with angle measurement function |
| CN104742606A (en) * | 2015-03-17 | 2015-07-01 | 张懿孜 | Multi-functional combined ruler |
-
2016
- 2016-05-19 CN CN201610335326.9A patent/CN105835574A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905605A (en) * | 2009-06-05 | 2010-12-08 | 施秋阳 | Butted-type ruler |
| KR20110003145U (en) * | 2009-09-22 | 2011-03-30 | 한밭대학교 산학협력단 | Folding Type Ruler which have Bearing |
| CN201998680U (en) * | 2011-01-28 | 2011-10-05 | 德州学院 | Ruler for clothing structural drafting |
| CN202186187U (en) * | 2011-06-27 | 2012-04-11 | 胡馨文 | Novel ruler |
| CN202264551U (en) * | 2011-09-08 | 2012-06-06 | 于国锋 | Folding straight ruler |
| CN104180736A (en) * | 2013-05-27 | 2014-12-03 | 湖北文理学院 | Folding ruler with angle measurement function |
| CN104742606A (en) * | 2015-03-17 | 2015-07-01 | 张懿孜 | Multi-functional combined ruler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108176A (en) * | 2019-04-30 | 2019-08-09 | 威海柯西医疗科技有限公司 | A kind of folding flow diverter scale extension ruler |
| CN110108176B (en) * | 2019-04-30 | 2024-05-24 | 威海柯西医疗科技有限公司 | Foldable drainage device graduated scale |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |
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| RJ01 | Rejection of invention patent application after publication |