CN203567416U - Extension-type compasses - Google Patents
Extension-type compasses Download PDFInfo
- Publication number
- CN203567416U CN203567416U CN201320417554.2U CN201320417554U CN203567416U CN 203567416 U CN203567416 U CN 203567416U CN 201320417554 U CN201320417554 U CN 201320417554U CN 203567416 U CN203567416 U CN 203567416U
- Authority
- CN
- China
- Prior art keywords
- swingle
- bar
- center
- centre point
- circle
- 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
Landscapes
- Pens And Brushes (AREA)
Abstract
A pair of extension-type compasses disclosed in the utility model comprises an extension-type straight bar, wherein one end of the extension-type straight bar is equipped with an installation hole, a rotation rod at the center point is vertically penetrated from the installation hole to be connected to the extension-type straight bar, a handle of the rotation rod at the center point is connected in a sleeved manner outside the top end of the rotation rod at the center point, a center-pin auxiliary rubber sucking disk is disposed in a sleeved manner outside the lower part of the rotation rod at the center point and a pen holding ring is disposed on the other end of the extension-type straight bar. The extension-type compasses in the utility model can conveniently and accurately draw circles with big radius.
Description
Technical field
The utility model belongs to office stationary articles for use technical field, relates to a kind of compasses, is specifically related to a kind of extension type compasses.
Background technology
Compasses, at design and the professional cartography field instrument that is absolutely necessary, often exist pin pin easily to produce displacement in traditional bifoot type compasses use procedure, cause the non-type defect of the circle drawing; The circumference sometimes drawing also need to be measured by survey tool pair radius.
In addition, most compasses are due to the restriction of size, thereby cannot draw out the circle of large radius.In order to draw the circle of different-diameter, conventionally need the compasses of a set of different size, so often in drawing course, need to change according to the size of graphing the compasses of different size, increased undoubtedly drawing personnel's workload, also can reduce operating efficiency, to Plot Work, bring inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of extension type compasses, can facilitate, draw out accurately the circle of large radius.
Adopted technical scheme of the present utility model is, extension type compasses, include scalable straight-bar, one end of scalable straight-bar is provided with installing hole, centre point swingle vertically joins through installing hole and scalable straight-bar, the tip exterior of centre point swingle is socketed with centre point swingle handle, and the lower outside of centre point swingle is socketed with center of circle pin auxiliary rubber sucker, and the other end of scalable straight-bar is provided with cover pen circle.
Feature of the present utility model is also,
In the installing hole of scalable straight-bar, be provided with internal thread, the middle part of centre point swingle is provided with external screw thread, and the middle part of centre point swingle joins through installing hole and scalable straight-bar screw thread.
Scalable straight-bar is mainly socketed to form successively by multistage cylindrical shell, on scalable straight-bar, is provided with scale value.
Centre point swingle includes swingle and is connected in the center of circle pin of swingle lower end, and the top of swingle is connected to centre point swingle handle by thread bush, and center of circle pin outer cover is connected to center of circle pin auxiliary rubber sucker.
Center of circle pin auxiliary rubber sucker is conical.
On cover pen circle inwall, be provided with rubber antiskid pad.
The beneficial effects of the utility model are,
(1) extension type compasses of the present utility model can adopt aluminium, steel metal, rigid plastics or flexible plastic preparation, and raw materials is various;
(2) extension type compasses of the present utility model have changed the bifoot type structure of traditional compasses in moulding, adopt extension type straight-bar structure;
(3) the scalable straight-bar of extension type compasses of the present utility model is marked with scale value, can directly read size value;
(4) outside, the pin position, the center of circle of extension type compasses of the present utility model cover has plastic, transparent rubber suction cups, can make stable being difficult for of center of circle pin move, and in the cover pen circle of scalable straight-bar end, is provided with anti-skid rubber cushion, paintbrush can be fixed on wherein and can not slide.
Accompanying drawing explanation
Fig. 1 is the main TV structure figure of extension type compasses of the present utility model;
Fig. 2 is the plan structure figure of extension type compasses of the present utility model.
In figure, 1. centre point swingle handle, 2. scalable straight-bar, 3. center of circle pin auxiliary rubber sucker, 4. cover pen circle, 5. center of circle pin, 6. centre point swingle, 7. rubber antiskid pad.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
Extension type compasses of the present utility model, its structure as shown in Figures 1 and 2, include scalable straight-bar 2, one end of scalable straight-bar 2 is provided with installing hole, centre point swingle 6 is vertical to join through installing hole and scalable straight-bar 2, the tip exterior of centre point swingle 6 is socketed with centre point swingle handle 1, and the lower outside of centre point swingle 6 is socketed with center of circle pin auxiliary rubber sucker 3, and the other end of scalable straight-bar 2 is provided with cover pen circle 4.
In the installing hole of scalable straight-bar 2, be provided with internal thread, the middle part of centre point swingle 6 is provided with the external screw thread matching with the internal thread in installing hole, the middle part of centre point swingle 6, through installing hole, joins with scalable straight-bar 2 screw threads by cooperatively interacting of internal and external screw thread.
Scalable straight-bar 2 is socketed to form successively by multistage cylindrical shell, on scalable straight-bar 2, is provided with scale value.
Centre point swingle 6 includes swingle and is connected in the center of circle pin 5 of swingle lower end, and the top of swingle and centre point swingle handle 1 screw thread join, and the outer cover of center of circle pin 5 is connected to center of circle pin auxiliary rubber sucker 3; Center of circle pin auxiliary rubber sucker 3 is conical.
As shown in Figure 2, on the inwall of cover pen circle 4, be provided with rubber antiskid pad 7.
In the process of use extension type compasses of the present utility model, paintbrush is fixed in cover pen circle 4, then center of circle pin 5 is vertically pricked on paper, press centre point swingle handle 1 downwards, by extruding, the center of circle pin auxiliary rubber sucker 3 in center of circle pin 5 outsides is adsorbed on paper, can make so the stable bundle of center of circle pin 5 on paper or on drawing board, prevent that the center of circle pin 5 from changing in the process of drawing, fix behind the center of circle, according to the length of waiting to draw circular diameter and regulate scalable straight-bar 2, can regulate by the method for the scalable straight-bar 2 that stretches or bounce back, fix after the length of scalable straight-bar 2 is that available paintbrush is drawn out and specified big or small circle.
In order to be applicable to the penholder of different thicknesses, can on cover pen circle 4, opening be set, between two openings, adopt a pair of screw bolt and nut cooperatively interacting to be flexibly connected, in use, paintbrush is positioned in cover pen circle 4, by the distance between twisting nut adjustable openings, thereby the size of adjusting sleeve pen circle 4, guarantee that paintbrush can just be stuck in cover pen circle 4, then center of circle pin 5 is vertically pricked on paper, press centre point swingle handle 1 downwards, the center of circle pin auxiliary rubber sucker 3 in extruding pin 5 outsides, the center of circle, center of circle pin 5 can be stable be fixed on paper or on drawing board, prevent that the center of circle pin 5 from changing in the process of drawing, fix behind the center of circle, according to the length of waiting to draw circular diameter and regulate scalable straight-bar 2, can regulate by the method for the scalable straight-bar 2 that stretches or bounce back, fix after the length of scalable straight-bar 2 is that available paintbrush is drawn out and specified big or small circle.
Wherein, extension type compasses of the present utility model can draw circles least radius be 10cm, by the scalable straight-bar 2 that stretches, can make size constantly increase, size marking adopts back annotation, and the position that scalable straight-bar 2 stretches is draws out circular diameter.
In center of circle pin 5 outer cover, there is the center of circle pin auxiliary rubber circle 3 of soft transparent, can assist the stable of center of circle pin 5, avoid the variation that center of circle pin scratches paper occurrence positions in drawing process, make drawing more accurate.
Claims (6)
1. extension type compasses, it is characterized in that, include scalable straight-bar (2), one end of described scalable straight-bar (2) is provided with installing hole, centre point swingle (6) vertically joins through described installing hole and described scalable straight-bar (2), the tip exterior of described centre point swingle (6) is socketed with centre point swingle handle (1), the lower outside of described centre point swingle (6) is socketed with center of circle pin auxiliary rubber sucker (3), and the other end of described scalable straight-bar (2) is provided with cover pen circle (4).
2. extension type compasses according to claim 1, it is characterized in that, in the installing hole of described scalable straight-bar (2), be provided with internal thread, the middle part of described centre point swingle (6) is provided with external screw thread, and the middle part of described centre point swingle (6) joins through described installing hole and described scalable straight-bar (2) screw thread.
3. extension type compasses according to claim 1 and 2, is characterized in that, described scalable straight-bar (2) is socketed to form successively by multistage cylindrical shell, on described scalable straight-bar (2), are provided with scale value.
4. extension type compasses according to claim 1, it is characterized in that, described centre point swingle (6) includes swingle and is connected in the center of circle pin (5) of swingle lower end, the top of described swingle is connected to centre point swingle handle (1) by thread bush, and described center of circle pin (5) outer cover is connected to center of circle pin auxiliary rubber sucker (3).
5. according to the extension type compasses described in claim 1 or 4, it is characterized in that, described center of circle pin auxiliary rubber sucker (3) is conical.
6. extension type compasses according to claim 1, is characterized in that, on described cover pen circle (4) inwall, are provided with rubber antiskid pad (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320417554.2U CN203567416U (en) | 2013-07-12 | 2013-07-12 | Extension-type compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320417554.2U CN203567416U (en) | 2013-07-12 | 2013-07-12 | Extension-type compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203567416U true CN203567416U (en) | 2014-04-30 |
Family
ID=50535168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320417554.2U Expired - Fee Related CN203567416U (en) | 2013-07-12 | 2013-07-12 | Extension-type compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203567416U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730092A (en) * | 2016-01-25 | 2016-07-06 | 信阳农林学院 | Teaching bow compass with sucker |
| CN108790503A (en) * | 2018-05-21 | 2018-11-13 | 广州大学 | A kind of scalable teaching aid compasses of digitlization |
| CN109130623A (en) * | 2018-08-14 | 2019-01-04 | 安徽信息工程学院 | Compasses suitable for blackboard |
| CN109435542A (en) * | 2018-09-17 | 2019-03-08 | 苏州涵轩信息科技有限公司 | Retractable compasses ruler |
-
2013
- 2013-07-12 CN CN201320417554.2U patent/CN203567416U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730092A (en) * | 2016-01-25 | 2016-07-06 | 信阳农林学院 | Teaching bow compass with sucker |
| CN108790503A (en) * | 2018-05-21 | 2018-11-13 | 广州大学 | A kind of scalable teaching aid compasses of digitlization |
| CN108790503B (en) * | 2018-05-21 | 2023-10-20 | 广州大学 | Digital telescopic teaching aid compasses |
| CN109130623A (en) * | 2018-08-14 | 2019-01-04 | 安徽信息工程学院 | Compasses suitable for blackboard |
| CN109435542A (en) * | 2018-09-17 | 2019-03-08 | 苏州涵轩信息科技有限公司 | Retractable compasses ruler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203567416U (en) | Extension-type compasses | |
| CN203681081U (en) | Multifunctional compasses | |
| CN203472352U (en) | Rope compasses | |
| CN203004808U (en) | Combination drawing training aid | |
| CN207841293U (en) | A kind of amount divider calipers | |
| CN206264648U (en) | Plotting pen | |
| CN211106604U (en) | Multifunctional measuring scale | |
| CN205133942U (en) | Full -automatic bull template aircraft nose for sewing machine | |
| CN218367183U (en) | Compasses | |
| CN203511081U (en) | Compass ruler | |
| CN201525221U (en) | Anti-skidding compass | |
| CN210757687U (en) | Template marking pen | |
| CN206967288U (en) | A kind of accurate positioning device of card grinding tool | |
| CN208392023U (en) | A kind of pressing roller round tube gauge length dotting machine | |
| CN203888478U (en) | Mechanical drawing functional ruler | |
| CN219277093U (en) | Compass for geometric teaching | |
| CN203356744U (en) | Screw type saw blade thickness adjusting device | |
| CN215921709U (en) | Arc-shaped compasses | |
| CN203527041U (en) | Locating tool for extruder cylinder hole drilling | |
| CN207607576U (en) | A kind of screw-type bike saddle regulating device | |
| CN203236914U (en) | Safe compass ruler | |
| CN2696857Y (en) | Instrument for drawing concentric circles | |
| CN203019873U (en) | Ink-absorption writing brush | |
| CN203092170U (en) | Machining clamp of through hole parts | |
| CN201931829U (en) | Multifunctional ruler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20140712 |
|
| EXPY | Termination of patent right or utility model |