CN204095362U - Combined compasses - Google Patents
Combined compasses Download PDFInfo
- Publication number
- CN204095362U CN204095362U CN201420556435.XU CN201420556435U CN204095362U CN 204095362 U CN204095362 U CN 204095362U CN 201420556435 U CN201420556435 U CN 201420556435U CN 204095362 U CN204095362 U CN 204095362U
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- Prior art keywords
- center
- rod
- connecting rod
- scribing
- circle
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Abstract
The utility model relates to a kind of Combined compasses, it is the bar that is articulated and connected the lower end of the supporting leg of existing compasses, the lower end of connecting rod is connected with center of circle bar or scribing rod, and center of circle bar and scribing rod align with the inner side edge of corresponding connecting rod respectively, connecting rod arranges guide groove, guide groove moves along guide rod chi, compasses supporting leg and connecting rod hinged, can effectively ensure when drawing like this, center of circle bar and scribing rod are vertical with paper all the time, center of circle bar and scribing rod align with the inner side edge of corresponding connecting rod respectively, thus ensure that institute's circular dimension of painting is accurate, guide rod chi is provided with scale, facilitate drawing personnel to determine paint circular radius, do not need to prepare ruler more in addition, structure is simple, easy to use, be easy to carry, draw accurately.
Description
technical field:
The utility model relates to a kind of drawing instrument, is specifically related to a kind of with ruler, the Combined compasses of mensurable painted radius of circle.
background technology:
The compasses that traditional drafting is circular used, generally be made up of supporting leg, center of circle pin, scribing rod and handle, people, when drawing circular, need first to adopt ruler to measure distance between center of circle pin and scribing rod, after determining painted radius of a circle, again on paper centered by the pin of the center of circle, turning handle, draw required circular, drawing circle at least needs ruler and compasses, two drawing instruments, operation comparatively bothers.
In addition, traditional compasses, after center of circle pin and scribing rod opened with certain angle, center of circle pin and scribing rod and paper form the angle being less than 90 °, are unfavorable for positioning centre pin, to the control of live width when being also unfavorable for that scribing rod is rule, operate also very inconvenient.
For solving the problems of the technologies described above, technical staff develops some novel bow compass, if the patent No. is " ZL2013 20046698.1 ", patent name is the Chinese utility model patent of " a kind of novel precise compasses ", it by arranging tape measure between compasses leg (center of circle pin) and compasses pen pin (scribing rod), the problem that when drawing circular, circular radius is measured can be solved, disclosed in it, compasses pen pin and compasses stand bar structure also can solve the Perpendicular Problems of center of circle bar and scribing rod and paper simultaneously, but, this novel precise compasses complex structure, cost is high, parts are many, compasses belong to drawing common tool, complex structure like this, expensive compasses be difficult to accept by people.
If the patent No. is " ZL201220757302.X ", name is called the Chinese utility model patent of " compasses ", it is fixed the leg of compasses and one end of ruler, a pin for compasses slides along ruler, so can determine paint circular radius, can ensure again leg and a pin vertical with paper, but, as everyone knows, when drawing circular, circular radius is realized with the tip of a pin by the tip of measurement compasses leg, but, in this patent, the mensuration of circular radius is by measuring the side of leg and the center of slide block, the circular radius drawn is inaccurate, be not paint circular true radius, cause drawing inaccurate.
utility model content:
In sum, in order to overcome the deficiency of prior art problem, the utility model provides a kind of Combined compasses, it is the bar that is articulated and connected the lower end of the supporting leg of existing compasses, the lower end of connecting rod is connected with center of circle bar or scribing rod, and center of circle bar and scribing rod align with the inner side edge of corresponding connecting rod respectively, connecting rod arranges guide groove, guide groove moves along guide rod chi, compasses supporting leg and connecting rod hinged, can effectively ensure when drawing like this, center of circle bar and scribing rod are vertical with paper all the time, center of circle bar and scribing rod align with the inner side edge of corresponding connecting rod respectively, thus ensure that institute's circular dimension of painting is accurate, guide rod chi is provided with scale, facilitate drawing personnel to determine paint circular radius, do not need to prepare ruler more in addition, structure is simple, easy to use, be easy to carry, draw accurately.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of Combined compasses, wherein: comprise handle, supporting leg, center of circle bar, scribing rod and guide rod chi, two supporting leg upper ends are connected with handle, two described supporting leg lower ends are all hinged with connecting rod, connecting rod upper end and supporting leg hinged, connecting rod lower end is connected with center of circle bar and scribing rod respectively, guide groove is provided with in the middle part of described connecting rod, be coated with guide rod chi in guide groove, and connecting rod and guide rod chi are locked by the jackscrew be arranged on guide groove, and guide rod chi is provided with graduation mark.
Further, aliging with the inner side edge of the connecting rod be connected in described bar lower end, the center of circle, aligns with the inner side edge of the connecting rod be connected in scribing rod lower end.
Further, described connecting rod is connected by tight fixed bolt with bar top, the center of circle, and connecting rod is connected by tight fixed bolt with scribing rod top.
Further, described scribing rod is pencil formula scribing rod, aligns with the connecting rod inner side edge be connected in the pencil point position of pencil formula scribing rod; Scribing rod or for line draw point, line draw point needle point position align with the connecting rod inner side edge be connected.
Further, described center of circle bar is center of circle draw point, aligns with the inner side edge of the connecting rod be connected in the needle point position of center of circle draw point; Center of circle bar or be sucked type center of circle bar, aligns with the inner side edge of the connecting rod be connected in the center of the sucker of sucked type center of circle bar.
The beneficial effects of the utility model are:
1, the utility model is the bar that is articulated and connected the lower end of the supporting leg of existing compasses, the lower end of connecting rod is connected with center of circle bar or scribing rod, and center of circle bar and scribing rod align with the inner side edge of corresponding connecting rod respectively, connecting rod arranges guide groove, guide groove moves along guide rod chi, compasses supporting leg and connecting rod hinged, can effectively ensure when drawing like this, center of circle bar and scribing rod are vertical with paper all the time, center of circle bar and scribing rod align with the inner side edge of corresponding connecting rod respectively, thus ensure that institute's circular dimension of painting is accurate, guide rod chi is provided with scale, facilitate drawing personnel to determine paint circular radius, do not need to prepare ruler more in addition, structure is simple, easy to use, be easy to carry, draw accurately.
2, the center of circle of the present utility model bar can be center of circle draw point also can be sucked type center of circle bar, and sucked type center of circle bar can facilitate the utility model to carry out drawing performance on hard material.
3, scribing rod of the present utility model can be line draw point, also can be pencil formula scribing rod, can also be other some chalkers, thus the utility model can be used as plumbous pen-type compasses, also can use as divider, can also use as the compasses of other form, as pen-type compasses, powerful.
4, align with the inner side edge of corresponding connecting rod 6 respectively in bar lower end, the center of circle of the present utility model and scribing rod lower end, effectively can ensure that the reading of guide rod chi is the reading between bar lower end, the center of circle and scribing rod lower end, thus ensure paint the accuracy of center of circle radius.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that schematic diagram is looked on a left side of the utility model Fig. 1;
Fig. 3 is the structural representation of the sucked type center of circle of the present utility model bar;
Fig. 4 is the structural representation of pencil formula scribing rod of the present utility model;
Fig. 5 is the structural representation of the maximum rating that supporting leg of the present utility model opens.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, a kind of Combined compasses, comprise handle 1, supporting leg 2, center of circle bar 3, scribing rod 4 and guide rod chi 5, two supporting leg 2 upper ends are connected with handle 1, two described supporting leg 2 lower ends are all hinged with connecting rod 6, connecting rod 6 upper end and supporting leg 2 hinged, connecting rod 6 lower end is connected with center of circle bar 3 and scribing rod 4 respectively, connecting rod 6 is connected by tight fixed bolt with center of circle bar 3 top, connecting rod 6 is connected by tight fixed bolt with scribing rod 4 top, described scribing rod 4 is line draw point, align with connecting rod 6 inner side edge be connected in the needle point position of line draw point, described center of circle bar 3 is center of circle draw point, align with the inner side edge of the connecting rod 6 be connected in the needle point position of center of circle draw point, guide groove 7 is provided with in the middle part of described connecting rod 6, guide rod chi 5 is coated with in guide groove 7, and connecting rod 6 and guide rod chi 5 are locked by the jackscrew 8 be arranged on guide groove 7, guide rod chi 5 is provided with graduation mark 9.
As shown in Figure 5, during use, the inner side edge of a connecting rod 6 is alignd with " 0 " graduation position of guide rod chi 5, and locked by locking jackscrew 8, then center of circle bar 3 is connected with this connecting rod 6; Afterwards, another connecting rod 6 mobile, makes its inner side edge align with corresponding circular radius size, is connected by scribing rod 4 with this connecting rod 6; Last with center of circle bar 3 for the center of circle, turning handle 1, scribing rod 4 draws circle at paper.
The center of circle of the present utility model bar 3 is center of circle draw point, and when scribing rod 4 is for line draw point, the utility model can use as divider, also can draw circle.
The center of circle of the present utility model bar 3 is center of circle draw point, and when scribing rod 4 is pencil formula scribing rod 4, the utility model can at drawing paper upper drawing circle, certainly, also can the place of graphing draw circular by some other pencil again.
When the center of circle of the present utility model bar 3 is sucked type center of circle bar 3, the utility model can be used to hard material draws circle again.
Be noted that, the above embodiment is unrestricted to the explanation of technical solutions of the utility model, the equivalent replacement of art those of ordinary skill or other amendment made according to prior art, as long as do not exceed thinking and the scope of technical solutions of the utility model, all should be included within the interest field required by the utility model.
Claims (5)
1. a Combined compasses, it is characterized in that: comprise handle (1), supporting leg (2), center of circle bar (3), scribing rod (4) and guide rod chi (5), two supporting leg (2) upper ends are connected with handle (1), two described supporting leg (2) lower ends are all hinged with connecting rod (6), connecting rod (6) upper end and supporting leg (2) hinged, connecting rod (6) lower end is connected with center of circle bar (3) and scribing rod (4) respectively, described connecting rod (6) middle part is provided with guide groove (7), guide rod chi (5) is coated with in guide groove (7), and connecting rod (6) and guide rod chi (5) are locked by the jackscrew (8) be arranged on guide groove (7), guide rod chi (5) is provided with graduation mark (9).
2. Combined compasses according to claim 1, is characterized in that: aliging with the inner side edge of the connecting rod be connected (6) in described center of circle bar (3) lower end, aligns with the inner side edge of the connecting rod be connected (6) in scribing rod (4) lower end.
3. Combined compasses according to claim 1, is characterized in that: described connecting rod (6) is connected by tight fixed bolt with center of circle bar (3) top, and connecting rod (6) is connected by tight fixed bolt with scribing rod (4) top.
4. according to the Combined compasses described in claim 1, it is characterized in that: described scribing rod (4) is pencil formula scribing rod, aligns with the connecting rod be connected (6) inner side edge in the pencil point position of pencil formula scribing rod (4); Scribing rod (4) or for line draw point, line draw point needle point position align with the connecting rod be connected (6) inner side edge.
5. Combined compasses according to claim 1, is characterized in that: described center of circle bar (3) is center of circle draw point, aligns with the inner side edge of the connecting rod be connected (6) in the needle point position of center of circle draw point; Center of circle bar (3) or be sucked type center of circle bar (3), aligns with the inner side edge of the connecting rod be connected (6) in the center of the sucker in sucked type center of circle bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556435.XU CN204095362U (en) | 2014-09-26 | 2014-09-26 | Combined compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556435.XU CN204095362U (en) | 2014-09-26 | 2014-09-26 | Combined compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204095362U true CN204095362U (en) | 2015-01-14 |
Family
ID=52263823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420556435.XU Expired - Fee Related CN204095362U (en) | 2014-09-26 | 2014-09-26 | Combined compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204095362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106114013A (en) * | 2016-08-31 | 2016-11-16 | 甄泓忠 | The Geometric figure drawing compasses that a kind of students in mathematics teaching is special |
| CN106739682A (en) * | 2015-11-25 | 2017-05-31 | 上海市格致中学 | A kind of compasses being convenient for measuring |
-
2014
- 2014-09-26 CN CN201420556435.XU patent/CN204095362U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106739682A (en) * | 2015-11-25 | 2017-05-31 | 上海市格致中学 | A kind of compasses being convenient for measuring |
| CN106114013A (en) * | 2016-08-31 | 2016-11-16 | 甄泓忠 | The Geometric figure drawing compasses that a kind of students in mathematics teaching is special |
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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 |
Granted publication date: 20150114 Termination date: 20150926 |
|
| EXPY | Termination of patent right or utility model |