CN205705876U - A kind of compasses with a scale of the non-tip in arms front end - Google Patents
A kind of compasses with a scale of the non-tip in arms front end Download PDFInfo
- Publication number
- CN205705876U CN205705876U CN201620288221.8U CN201620288221U CN205705876U CN 205705876 U CN205705876 U CN 205705876U CN 201620288221 U CN201620288221 U CN 201620288221U CN 205705876 U CN205705876 U CN 205705876U
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- CN
- China
- Prior art keywords
- compasses
- swing arm
- scale
- arm
- flexible
- 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
This utility model discloses the compasses with a scale of the non-tip in a kind of arms front end, belong to drawing instrument field, the quiet arm that including circular protractor, is fixed on circular protractor and be hinged on the swing arm on circular protractor, described quiet arm and swing arm meet at connection end, and described swing arm can be along circular protractor surface pivots by described connection end；The front end of described swing arm is provided with flexible pen container, has pen sheath hole in flexible pen container, and the front end of described quiet arm is provided with flexible location division, and the front end of described flexible location division is provided with locating piece.The Ding Bi front end of this utility model compasses uses locating piece, accurate positioning, cannot be only used for wooden blackboard, equally applicable to Glass blackboard, and locating piece does not results in personnel's injury, safe ready.This compasses simple in construction with a scale, reasonable in design, applied widely, safety is high.
Description
Technical field
This utility model relates to a kind of compasses, is specifically related to the compasses with a scale of the non-tip in a kind of arms front end, belongs to drawing instrument field.
Background technology
Compasses are used to picture circle and the instrument of circular arc, and it is lever, is also wheel shaft, is also marking gauge.Compasses make typically metal, including three part compasses heads, compass leg and compasses point, wherein the subtended angle of compass leg can adjust.
Prong, equipped with a tip of a root pin, is inserted on blackboard during use by common compasses for teaching arms front end, for wooden blackboard it is also possible that still cannot fix for the most conventional Glass blackboard prong, easily causes location inaccurate；Further, since prong mostly is metal material, therefore, sharp, easily cause personnel's injury during use, danger is bigger.
Summary of the invention
The problem existed for above-mentioned prior art, this utility model provides the compasses with a scale of the non-tip in a kind of arms front end, applied widely, accurate positioning, and safe to use.
To achieve these goals, the compasses with a scale of the non-tip in a kind of arms front end that this utility model uses, the quiet arm that including circular protractor, is fixed on circular protractor and be hinged on the swing arm on circular protractor, described quiet arm and swing arm meet at connection end, and described swing arm can be along circular protractor surface pivots by described connection end；
The front end of described swing arm is provided with flexible pen container, has pen sheath hole in flexible pen container, and the front end of described quiet arm is provided with flexible location division, and the front end of described flexible location division is provided with locating piece.
As improvement, described locating piece is cylindric.
As improvement, the side of described quiet arm has the first cavity, and the homonymy of described flexible location division has the second cavity, described swing arm and flexible pen container and can coordinate and be arranged in described first and second cavity.
As improvement, described flexible location division is provided with fixing axle, and fixing the tip of the axis is provided with screw thread, described quiet arm has and is easy to the installing hole that fixing axle moves up and down, and described fixing axle through installing hole and is fixed by fastening bolt.
As improvement, described installing hole both sides are provided with graduation mark.
As improvement, between described fastening bolt and quiet arm, it is provided with pad.
As improvement, the minimum range scale on described circular protractor is 1 °.
Compared with prior art, the Ding Bi front end of this utility model compasses uses locating piece, accurate positioning, cannot be only used for wooden blackboard, equally applicable to Glass blackboard, and locating piece does not results in personnel's injury, safe ready.This compasses simple in construction with a scale, reasonable in design, applied widely, safety is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is quiet arm and flexible location division attachment structure schematic diagram；
Fig. 3 is flexible location division structural representation in Fig. 2；
Fig. 4 is use state diagram of the present utility model；
In figure: 1, circular protractor, 2, connect end, 3, swing arm, 4, flexible pen container, 41, pen sheath hole, 5, quiet arm, the 51, first cavity, 6, flexible location division, the 61, second cavity, 62, locating piece, 63, fixing axle, 7, detail pen, 8, fastening bolt.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage of greater clarity, below by accompanying drawing and embodiment, this utility model is further elaborated.However, it should be understood that specific embodiment described herein is only in order to explain this utility model, it is not limited to scope of the present utility model.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent or improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
As shown in Figure 1, a kind of compasses with a scale of the non-tip in arms front end, the quiet arm 5 that including circular protractor 1, is fixed on circular protractor 1 and be hinged on the swing arm 3 on circular protractor 1, described quiet arm 5 and swing arm 3 meet at connection end 2, described swing arm 3 can be along circular protractor 1 surface pivots by described connection end 2, connect end 2 and can use bearing pin, by being sleeved on bearing pin by swing arm 3, therefore can realize the rotation of swing arm 3；
The front end of described swing arm 3 is provided with flexible pen container 4, has pen sheath hole 41 in flexible pen container 4, and the front end of described quiet arm 5 is provided with flexible location division 6, and the front end of described flexible location division 6 is provided with locating piece 62.
As the improvement of embodiment, described locating piece 62 is cylindric, changes original compasses tip into columned locating piece 62, rely on locating piece 62 to be arranged on blackboard to position, accurate positioning, and be applicable to various material blackboard, such as wooden or Glass blackboard, using effect is good.
Improvement as embodiment, the side of described quiet arm 5 has the first cavity 51, described flexible location division 6 has the second cavity 61 at the homonymy of the first cavity 51, described swing arm 3 and flexible pen container 4 can coordinate and be arranged in described first and second cavity, when being not required to use compasses of the present utility model, only need by swing arm 3 and be arranged on swing arm 3 front end flexible pen container 4 shrink be placed in first and second cavity, the area that takes up room is little, and can make the angle range of swing arm 3 reach maximum.
Improvement as embodiment, such as Fig. 2, shown in Fig. 3, described flexible location division 6 is provided with fixing axle 63, the end of fixing axle 63 is provided with screw thread, have on described quiet arm 5 and be easy to the installing hole that fixing axle 63 moves up and down, described fixing axle 63 is fixed through installing hole and by fastening bolt 8, fixing axle 63 is relied on to coordinate with installing hole, guarantee that flexible location division 6 can be moved on quiet arm 5, on the one hand the distance between locating piece 62 and quiet arm 5 can be regulated, the range making these compasses increases, additionally, flexible location division 6 can also be relied on to move on quiet arm 5 and to increase by first, area in two cavitys, guarantee effectively swing arm 3 and flexible pen container 4 to be accommodated.
Improvement as embodiment, described installing hole both sides are provided with graduation mark, when the fixing axle 63 on flexible location division 6 moves up and down in installing hole, rely on graduation mark can accurately know the displacement of fixing axle 63, and then would know that the distance between locating piece 62 and quiet arm 5 changes.
Additionally, said structure is also adopted by for the installation between swing arm 3 and flexible pen container 4, i.e. axle is set on flexible pen container 4, shaft end sets screw thread, opens the hole coordinated with axle on swing arm 3, and both sides, hole set graduation mark, by moving in the hole on swing arm 3 of the axle on flexible pen container 4, the flexible pen container 4 installation site on swing arm 3 of regulation, mobile to correct position, by bolt, flexible pen container 4 is fixed on swing arm 3.
As the improvement of embodiment, between described fastening bolt 8 and quiet arm 5, it is provided with pad, effectively protects quiet arm 5, it is to avoid by screw bolt abrasion, and the flexible location division 6 installation tautness on quiet arm 5 can be effectively improved by pad.
As the improvement of embodiment, the minimum range scale on described circular protractor 1 is 1 °, and precision is high, and range is wide.
During use, as shown in Figure 4, detail pen 7 is arranged in pen sheath hole 41, then flexible pen container 4 is fixed on swing arm 3, flexible location division 6 is fixed on the correct position on quiet arm 5 again, rotates swing arm 3, make angle between swing arm 3 and quiet arm 5 meet the requirements, then the locating piece 62 of front end, flexible location division 6 is fixed on blackboard, relies on detail pen 7 can draw required figure；After use, adjust the flexible pen container 4 installation site on swing arm 3, make being of convenient length of flexible pen container 4 and swing arm 3, then flexible pen container 4 and swing arm 3 are received to first and second cavity.
The Ding Bi front end of this utility model compasses uses locating piece 62, accurate positioning, cannot be only used for wooden blackboard, equally applicable to Glass blackboard, and locating piece 62 does not results in personnel's injury, safe ready.This compasses simple in construction with a scale, reasonable in design, applied widely, safety is high.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent or improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (7)
1. the compasses with a scale of the non-tip in arms front end, it is characterized in that, the quiet arm (5) that including circular protractor (1), is fixed on circular protractor (1) and be hinged on the swing arm (3) on circular protractor (1), described quiet arm (5) and swing arm (3) meet at connection end (2), and described swing arm (3) can be along circular protractor (1) surface pivots by described connection end (2)；
The front end of described swing arm (3) is provided with flexible pen container (4), has pen sheath hole (41) in flexible pen container (4), and the front end of described quiet arm (5) is provided with flexible location division (6), and the front end of described flexible location division (6) is provided with locating piece (62).
The compasses with a scale of the non-tip in a kind of arms front end the most as claimed in claim 1, it is characterised in that described locating piece (62) is cylindric.
The compasses with a scale of the non-tip in a kind of arms front end the most as claimed in claim 1, it is characterized in that, the side of described quiet arm (5) has the first cavity (51), the homonymy of described flexible location division (6) has the second cavity (61), described swing arm (3) and flexible pen container (4) and can coordinate and be arranged in described first cavity, the second cavity.
The compasses with a scale of the non-tip in a kind of arms front end the most as claimed in claim 1, it is characterized in that, described flexible location division (6) is provided with fixing axle (63), the end of fixing axle (63) is provided with screw thread, having on described quiet arm (5) and be easy to the installing hole that fixing axle (63) moves up and down, described fixing axle (63) is fixed through installing hole and by fastening bolt (8).
The compasses with a scale of the non-tip in a kind of arms front end the most as claimed in claim 4, it is characterised in that described installing hole both sides are provided with graduation mark.
The compasses with a scale of the non-tip in a kind of arms front end the most as claimed in claim 4, it is characterised in that be provided with pad between described fastening bolt (8) and quiet arm (5).
The compasses with a scale of the non-tip in a kind of arms front end the most as claimed in claim 1, it is characterised in that the minimum range scale on described circular protractor (1) is 1 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620288221.8U CN205705876U (en) | 2016-04-08 | 2016-04-08 | A kind of compasses with a scale of the non-tip in arms front end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620288221.8U CN205705876U (en) | 2016-04-08 | 2016-04-08 | A kind of compasses with a scale of the non-tip in arms front end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205705876U true CN205705876U (en) | 2016-11-23 |
Family
ID=57310270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620288221.8U Expired - Fee Related CN205705876U (en) | 2016-04-08 | 2016-04-08 | A kind of compasses with a scale of the non-tip in arms front end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205705876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108909276A (en) * | 2018-05-06 | 2018-11-30 | 陈玲 | Special pens are used in a kind of examination of senior middle school |
-
2016
- 2016-04-08 CN CN201620288221.8U patent/CN205705876U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108909276A (en) * | 2018-05-06 | 2018-11-30 | 陈玲 | Special pens are used in a kind of examination of senior middle school |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20180408 |