CN207128453U - Curve tracing and measurement facility - Google Patents
Curve tracing and measurement facility Download PDFInfo
- Publication number
- CN207128453U CN207128453U CN201720114896.5U CN201720114896U CN207128453U CN 207128453 U CN207128453 U CN 207128453U CN 201720114896 U CN201720114896 U CN 201720114896U CN 207128453 U CN207128453 U CN 207128453U
- Authority
- CN
- China
- Prior art keywords
- slide bar
- stainless steel
- graduated scale
- circle
- slideway
- 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
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a kind of curve tracing and measurement facility, and it includes cylindrical this circle and stainless steel graduated scale；Five arrow zigzag slideways are provided with this circle, each slideway has a slide bar, and for rod design into swallowtail shape, slideway coordinates with slide bar can adjust fixed slip bar terminal location；Stainless steel graduated scale is made up of the good ultra-thin stainless steel piece of elasticity；Five fixed slide bar terminals are connected with stainless steel graduated scale, are allowed to natural torsion into smooth parabola；Reusable lead pen or pen draw parabola along on the outside of stainless steel graduated scale；Similarly, this technical scheme can also draw hyperbola, ellipse, circle and other curves；Using stainless steel graduated scale, drawn length of a curve can be directly read, therefore, it is curve measurement facility again；Stainless steel graduated scale and the design of slide bar tie point are survived neck, it is exactly ruler to take out stainless steel graduated scale, using the protractor set on this circle, can draw any geometric figure.
Description
Technical field
The present invention relates to one kind teaching drawing tool, especially curve tracing and measurement facility.
Background technology
Compasses can easily draw circle, but parabola, hyperbola, ellipse can not be drawn, junior-senior high school mathematics class
Journey is related to the mapping problem of a large amount of parabolas, hyperbola, ellipse and other curves, but does not have a kind of work on domestic and international market at present
Tool can quickly and easily draw these figures.Student and teacher only have these curves of freehand, both unsightly or inaccurate.
Existing indivedual curve tracing tools of invention are mainly the definition according to curve, are mapped, are operated neither with the fine rule tightened
It is convenient again not quick.
The length of line segment can be measured with ruler, but the length of curved section never has measurement facility, whenever student asks
During the length issue of curved section, teacher can not answer.
The content of the invention
The present invention curve tracing and measurement facility, can conveniently and efficiently draw parabola, hyperbola, ellipse, circle and
Other curves, solve the problems, such as that middle school student and teacher's trace figure do not have instrument, it can also measure curved section length and
Arc to central angle, it has traditional protractor and ruler functions, can draw any geometric figure again.In the future, can be into
The drawing tool commonly used for middle school student.
The technical solution adopted for the present invention to solve the technical problems：A kind of curve tracing and measurement facility, including cylinder
This circle of shape and stainless steel graduated scale；Protractor is provided with above this circle, the center of circle is this circle centre bore, is set in this circle
Five arrow zigzag slideways, each slideway have a slide bar, and slide bar origin or beginning is designed to swallowtail shape, and slideway coordinates with slide bar
Fixed slip bar terminal location can be adjusted；Stainless steel graduated scale is made up of the good ultra-thin stainless steel piece of elasticity, it and left slide bar
End points and right slide bar end points are fixed, and by summit, left redundant end points, right redundant end points, make its natural torsion into smooth throwing
Thing line；Reusable lead pen or pen draw parabola along on the outside of stainless steel graduated scale；, i.e. summit, left end point can also be fixed at 3 points
And right endpoint, determine parabolical shape；, i.e. left end point and right endpoint can also be fixed at 2 points, bend stainless steel graduated scale
Into parabola；Hyp one can also be drawn with this technology, then replicates another, draws the half of ellipse, then it is multiple
Second half is made, circle and other curves can also be drawn.
Using stainless steel graduated scale, drawn length of a curve can be directly read, so it is also the measurement facility of curve.
Stainless steel graduated scale and left slide bar, the connection design of right slide bar are survived neck, taking out stainless steel graduated scale is exactly
Ruler, using the protractor on this circle, any geometric figure can be drawn.
The invention has following beneficial effect：The invention solves curve tracing and curved section is measured no common tool and asked
Topic, has filled up a blank of educational aid, and its structure is simple, easy to operate, can indiscriminately ad. as one wishes draw curve, measurement
Curve segment length.To Students ' Learning and understand parabola (quadratic function), hyperbola (inverse proportion function), oval, round and other
Curve, there is huge help, particularly enhance the perceptual knowledge of these knowledge, be adapted to junior-high school student and teacher both domestic and external
Make curve map.Each middle school student are required for such curve tracing and measurement facility both at home and abroad, have great business opportunity.
Brief description of the drawings
Fig. 1：It is the structural representation of curve tracing and measurement facility for curve tracing state.
Fig. 2：Do not mapped state for curve tracing and measurement facility, the schematic diagram being placed in writing case.
Fig. 3：Summit Slide bar structure figure.
Fig. 4：Other Slide bar structure figures.
In Fig. 1,1, this circle；2nd, this circle centre bore；3rd, summit；4th, left end point；5th, right endpoint；6th, left redundant end points；
7th, right redundant end points；8th, summit slideway；9th, left slideway；10th, right slideway；11st, inside left's inrun；12nd, inside right forward's inrun；13rd, push up
Point slide bar；14th, left slide bar；15th, right slide bar；16th, left redundant slide bar；17th, right redundant slide bar；Ramp design is into arrow zigzag
Shape, slide bar origin or beginning are designed to swallowtail shape；18th, stainless steel graduated scale：It is made up of the good ultra-thin stainless steel piece of elasticity；19th, buttonhole；
20th, this circle protractor.
21 in Fig. 3, Fig. 4, slide bar terminal；22nd, slide bar origin or beginning.
Specific embodiment
Fig. 1 is mapping state, and this circle (1) is positioned to during mapping the heteropleural of curve tangent line, and underface is against curve
Summit, this circle centre bore (2) crosses the symmetry axis of curve, and according to the structure of slideway and slide bar, slide bar skids off to outside this circle (1)
Easily, slide to be stuck into this circle and inwardly adjusted, it is necessary to pinch sliding bar origin or beginning (22) with hand, summit slideway (8)
Coordinate summit slide bar (13) adjustment, fixed vertices (3), left slideway (9) coordinates left slide bar (14) adjustment, fixes left end point (4), right
Slideway (10) coordinates right slide bar (15), fixed right endpoint (5), and inside left's inrun (11) coordinates left redundant slide bar (16) adjustment, Gu
Determine left redundant end points (6), inside right forward's inrun (12) coordinates right redundant slide bar (17) adjustment, fixed right redundant end points (7)；Stainless steel
Above-mentioned 5 points of graduated scale (18) connection, and fixed, smooth curve is formed, then, along the outside of stainless steel graduated scale (18)
Curve is drawn with pencil or pen.Using stainless steel graduated scale, drawn length of a curve can be directly read.When not in use, slide bar
Closing in this circle (1), one end of stainless steel graduated scale (18) is fixed on right endpoint (5), and the other end is buckled on buttonhole (19),
Look to be exactly Fig. 2, it is very convenient to be put into writing case.Because stainless steel graduated scale (18) left end point (4) and right endpoint (5) are all living
Neck, it is exactly ruler to take out stainless steel graduated scale (18), coordinates the protractor (20) on body circle to draw any geometric graph
Shape.
Claims (6)
1. a kind of curve tracing and measurement facility, it is characterised in that be provided with five slideways in this circle (1)：With summit slideway
(8) it is symmetry axis, there is left slideway (9), right slideway (10), inside left's inrun (11), inside right forward's inrun (12)；It is each in each slideway
There is a supporting slide bar：Summit slide bar (13), left slide bar (14), right slide bar (15), left redundant slide bar (16), right redundant slide bar
(17)；Slideway coordinates for fixed slip bar end points with slide bar：Summit (3), left end point (4), right endpoint (5), left redundant end points
(6), right redundant end points (7)；Stainless steel graduated scale (18) is used to connect above-mentioned each end points, smooth curve is formed, along stainless steel
Curvilinear figure is drawn on the outside of graduated scale (18)；The center of this circle protractor (20) is this circle centre bore (2)；Buttonhole (19) is tight
Lean against right slideway (10) right-hand member.
2. curve tracing according to claim 1 and measurement facility, it is characterized in that, summit slideway (8), left slideway (9), the right side
Slideway (10), inside left's inrun (11), inside right forward's inrun (12) are arranged to arrow zigzag, and slide bar afterbody is designed to swallow-tail form
Shape, slide bar easily slide in and out, and slid inward can be stuck, it is necessary to which fixed bit could inwardly be adjusted by pinching slide bar afterbody with hand
Put.
3. curve tracing according to claim 1 and measurement facility, it is characterized in that, stainless steel graduated scale (18) is super by elasticity
Thin stainless steel substrates are made, two-sided to have scale, conveniently measurement, are the measurement facilities of curve.
4. curve tracing according to claim 1 and measurement facility, it is characterized in that, it is provided with this above this circle (1)
Circle protractor (20), can independently be used.
5. curve tracing according to claim 1 and measurement facility, it is characterized in that, the both ends of stainless steel graduated scale (18) with
Left slide bar end points (4) is connected with right slide bar end points (5) in a manner of neck of living, and other each end points are connected with the way of contact, is taken out not
Become rusty steel graduated scale (18), can be used separately as ruler.
6. curve tracing according to claim 1 and measurement facility, it is characterized in that, summit slide bar (13), left slide bar (14),
Right slide bar (15), left redundant slide bar (16), right redundant slide bar (17) can be closed in this circle (1), stainless steel graduated scale (18)
One end be fixed on right endpoint (5), the other end is buckled on buttonhole (19), and it is very convenient to be put into writing case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720114896.5U CN207128453U (en) | 2017-02-07 | 2017-02-07 | Curve tracing and measurement facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720114896.5U CN207128453U (en) | 2017-02-07 | 2017-02-07 | Curve tracing and measurement facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207128453U true CN207128453U (en) | 2018-03-23 |
Family
ID=61630055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720114896.5U Expired - Fee Related CN207128453U (en) | 2017-02-07 | 2017-02-07 | Curve tracing and measurement facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207128453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334309A (en) * | 2018-09-29 | 2019-02-15 | 杨钦喆 | A kind of fixed type multifunctional mapping ruler |
-
2017
- 2017-02-07 CN CN201720114896.5U patent/CN207128453U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109334309A (en) * | 2018-09-29 | 2019-02-15 | 杨钦喆 | A kind of fixed type multifunctional mapping ruler |
| CN109334309B (en) * | 2018-09-29 | 2020-12-22 | 杨钦喆 | Fixed multifunctional drawing ruler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20220207 |