CN202623706U - Angle measuring dial - Google Patents
Angle measuring dial Download PDFInfo
- Publication number
- CN202623706U CN202623706U CN 201220221655 CN201220221655U CN202623706U CN 202623706 U CN202623706 U CN 202623706U CN 201220221655 CN201220221655 CN 201220221655 CN 201220221655 U CN201220221655 U CN 201220221655U CN 202623706 U CN202623706 U CN 202623706U
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- CN
- China
- Prior art keywords
- swingle
- disc plate
- circle
- rotary rod
- angular surveying
- 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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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
An angle measuring dial comprises a disk plate and a rotary rod hinged at the center of the disk plate. Angle scale marks are arranged on the circumference of the disk plate, the rotary rod is in a sectional serial-connection type flexible structure, the rotary rod and the disk plate are made of transparent materials, each flexible section is provided with a visible vertical center line for assisting the rotary rod to align to the angle scale marks, and the vertical center lines are marked with scale marks for showing the flexible length. According to the angle measuring dial, under the rotation of the rotary rod around a central axis of a circle center, and arcs with required radius and central angles can be drawn up by using the flexible structure; and the structure is simple, the limitation is small, and drawing of various arcs and measurement of angles can be achieved.
Description
Technical field
The utility model relates to a kind of angular surveying field, relates in particular to a kind of angular surveying dish.
Background technology
In mathematical education and study; Association takes measurement of an angle and often runs into according to the angle corresponding circular arc that requires to draw; Usually need to use different tools to realize measuring and drawing; Though can after confirming radius, draw circular arc or circle of most compasses on the market, the circular arc under the central angle that can not draw is confirmed; Existing most protractors on the market though can record angle, can not require to draw circular arc or circle according to radius length.
China Granted publication CN201913963U; Though proposed a kind of angular surveying dish; Also can require to draw circular arc according to angle, the circular arc but semi-circular disk can only draw under 0 ° to the 180 ° central angle, and circular arc place radius of a circle receives the limitation of disc radius.
The utility model content
The utility model provides a kind of can the realization can not limited to by disc radius again to 0 ° of measurement to 360 ° of angles in order to solve the prior art problem, and draw radius and central angle all have the circular arc of requirement.
The technical scheme of the utility model is: a kind of angular surveying dish comprises disc plate and is hinged on the swingle of described disc plate circle centre position; The angle index line is arranged on the circumference of disc plate, and swingle is a merogenesis concatenation type stretching structure, and swingle and disc plate are transparent material, on each joint telescopic section visible vertical center line is arranged, and this vertical center line is marked with the graduation mark of expression collapsing length.The end of the telescopic section of said swingle minor details is provided with the pen cap, the described pen cap can in the paintbrush of packing into.When drawn circular arc place radius of circle has requirement; Can from the head joint of swingle, extend each joint that open string connects; Observe the scale that stretches out at last on the joint and whether reach the length of the radius that requires; Rotate this swingle afterwards, when observing vertical center line and aim at desired angle index line, just can draw radius and central angle of the paintbrush of adorning in the end pen cap of minor details telescopic section all has the circular arc of requirement.
As a kind of preferred, the head joint of described swingle is provided with guide finger, offers a circle on the described disc plate and can retrain the gathering sill that described guide finger slides.
As a kind of preferred, the cross sectional shape of gathering sill is the T type.
As a kind of preferred, on the diameter segment of hinged place, the center of circle, offer through-hole groove along 0 ° of graduation mark of described disc plate.Spacing through through-hole groove, the straightway that draws can better be used to write down the circular arc or the original position of angle.
In sum, the utlity model has following advantage:
1, minor details can have the swingle of paintbrush, adopt merogenesis concatenation type stretching structure, add the indication of disk angle index line, at can draw under around the rotation of center of circle axis radius and central angle of swingle the circular arc of requirement are arranged all.Simple in structure, limit to for a short time, satisfy the drafting of various circular arcs and the measurement of angle.
2, the swingle that has a guide finger is combined with the disk of gathering sill, uses more stablely, and disk is improved to just round by semicircle of the prior art, can measure or draw 0 ° to 360 ° angle and corresponding circular arc.
Description of drawings
Fig. 1 is the utility model structural representation;
Partial cutaway schematic when Fig. 2 uses for the utility model;
Among the figure, 1, disc plate, 11, through-hole groove, 12, gathering sill, 13, axis, 2, swingle, 21, vertical center line, 22, minor details, 23, the pen cap, 24, first joint, 25, guide finger, 3, paintbrush.
The specific embodiment
With embodiment the utility model is described further below.
As shown in Figure 1, a kind of angular surveying dish comprises disc plate 1 and is hinged on the swingle 2 of described disc plate 1 circle centre position; The angle index line is arranged on the circumference of disc plate 1; Swingle 2 is merogenesis concatenation type stretching structures; Swingle 2 is a transparent material with disc plate 1, on each joint telescopic section visible vertical center line 21 is arranged, and this vertical center line 21 is marked with the graduation mark of expression collapsing length.The end of the minor details 22 of said swingle is provided with the pen cap 23.0 ° of graduation mark along described disc plate offers through-hole groove 11 on the diameter segment of hinged place, the center of circle.Spacing through through-hole groove 11, the straightway that draws can better be used to write down the circular arc or the original position of angle.
Shown in the user mode sketch map of Fig. 2: disc plate 1 is hinged through axis 13 with swingle 2, the axis 13 and the disc plate 1 concyclic heart.Swingle 2 is that rotating shaft rotatablely moves with axis 13, the described pen cap 23 can in the paintbrush 3 of packing into.When drawn circular arc place radius of circle has requirement; Can save each joint that the elongation open string connects 24 from the head of swingle 2; Observe the scale that stretches out at last on the joint and whether reach the length of the radius that requires; Rotate this swingle 2 afterwards, when observing vertical center line 21 and aim at desired angle index line, just can draw radius and central angle of the paintbrush 3 of dress all has the circular arc of requirement in the end pen cap 23 of minor details 22.Stability when guaranteeing swingle 2 rotation, the head of swingle 2 saves 24 and is provided with guide finger 25, offers a circle on the described disc plate and can retrain the gathering sill 12 that described guide finger slides, and the cross sectional shape of this gathering sill 12 is the T type.
Claims (4)
1. angular surveying dish comprises disc plate and is hinged on the swingle of described disc plate circle centre position; The angle index line is arranged on the circumference of described disc plate; It is characterized in that: described swingle and disc plate are transparent material; Described swingle is a merogenesis concatenation type stretching structure; On each joint telescopic section visible vertical center line is arranged, this vertical center line is marked with the graduation mark of expression collapsing length, and the minor details end of swingle is provided with the pen cap.
2. angular surveying dish according to claim 1 is characterized in that: the head joint of described swingle is provided with guide finger, offers a circle on the described disc plate and can retrain the gathering sill that described guide finger slides.
3. angular surveying dish according to claim 2 is characterized in that: the cross sectional shape of described gathering sill is the T type.
4. angular surveying dish according to claim 1 and 2 is characterized in that: 0 ° of graduation mark along described disc plate offers through-hole groove on the diameter segment of hinged place, the center of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220221655 CN202623706U (en) | 2012-05-17 | 2012-05-17 | Angle measuring dial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220221655 CN202623706U (en) | 2012-05-17 | 2012-05-17 | Angle measuring dial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202623706U true CN202623706U (en) | 2012-12-26 |
Family
ID=47376936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220221655 Expired - Fee Related CN202623706U (en) | 2012-05-17 | 2012-05-17 | Angle measuring dial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202623706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278095A (en) * | 2013-06-26 | 2013-09-04 | 上海海事大学 | One-dimensional retractable target device and feature point calibrating method thereof |
| CN107192371A (en) * | 2017-05-11 | 2017-09-22 | 海迪科（南通）光电科技有限公司 | A kind of ray Space Angle position indicator |
-
2012
- 2012-05-17 CN CN 201220221655 patent/CN202623706U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278095A (en) * | 2013-06-26 | 2013-09-04 | 上海海事大学 | One-dimensional retractable target device and feature point calibrating method thereof |
| CN103278095B (en) * | 2013-06-26 | 2016-06-29 | 上海海事大学 | The production method of one-dimensional extension type target apparatus and feature point for calibration thereof |
| CN107192371A (en) * | 2017-05-11 | 2017-09-22 | 海迪科（南通）光电科技有限公司 | A kind of ray Space Angle position indicator |
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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: 20121226 Termination date: 20130517 |