CN204172555U - A kind of multifunctional compass - Google Patents
A kind of multifunctional compass Download PDFInfo
- Publication number
- CN204172555U CN204172555U CN201420617195.XU CN201420617195U CN204172555U CN 204172555 U CN204172555 U CN 204172555U CN 201420617195 U CN201420617195 U CN 201420617195U CN 204172555 U CN204172555 U CN 204172555U
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- CN
- China
- Prior art keywords
- leg
- tooth
- turn
- bearing pin
- screw
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of multifunctional compass, it relates to teaching field, and it comprises compasses head, rotating disk, the first leg, the second leg, first turn of tooth, second turn of tooth, bolt, knob, circular hole, bearing pin, spring, stitch and screw; Its reasonable in design, modern design is unique, and simple to operate, easy to use, volume is little, easy to carry, is convenient to student's operation, can several classes of clamping by through hole inside, meets the demand of academics and students greatly; The efficiency of Students ' Learning can be improve; There is reasonable in design, the feature such as structure is simple, easy to use, function admirable, practicality, thus have and well promote the use of prospect.
Description
Technical field:
The utility model relates to realia, is specifically related to a kind of multifunctional compass.
Background technology:
General, in teaching equipment mathematically, the form of compasses equipment is of all kinds, but be regular length compasses stems mostly, the single length of such stem can only draw the circle in certain radius length range, teaching often requires that the big and small circle of teacher can be drawn out, so that the knowledge point of the circular aspect of more effective explanation mathematics.At this moment the opening of the compasses of single length stem is limited, because stem is oversize and cannot draw the circle of minor radius when it is closed.Therefore, current used equipment is more single, and its action effect and working range are also subject to certain restrictions, and cannot meet more requirement.
Utility model content:
In order to solve the problem, the utility model provides a kind of technical scheme: a kind of multifunctional compass, comprise compasses head, rotating disk, the first leg, the second leg, first turn of tooth and second turn of tooth, described compasses head is fixedly connected on the upper end of rotating disk, described first turn of tooth and second turn of tooth are movably connected on rotating disk in intermeshing mode, described first turn of tooth is fixedly connected with the first leg, described second turn of tooth is fixedly connected with the second leg, and its innovative point is: comprise bolt, knob, circular hole, bearing pin, spring, stitch and screw; The lower end of described first leg is provided with a circular hole; Described bolt is together with knob global formation, and described bolt is arranged in circular hole by screw thread; Described bearing pin is provided with open slot, and described bearing pin is nested in the chamber of the second leg; Described screw is arranged on the chamber wall of the second leg, and one end of described screw contacts with the open slot of bearing pin; Described bearing pin is coated with a spring, described bearing pin front end is also fixedly connected with a stitch.
As preferably, the overall length of described second leg and bearing pin is greater than the length of the first leg.
As preferably, the surface of described knob is provided with annular knurl.
The beneficial effects of the utility model: its reasonable in design, modern design is unique, and simple to operate, easy to use, volume is little, easy to carry, is convenient to student's operation, can several classes of clamping by through hole inside, meets the demand of academics and students greatly; The efficiency of Students ' Learning can be improve; There is reasonable in design, the feature such as structure is simple, easy to use, function admirable, practicality, thus have and well promote the use of prospect.
Accompanying drawing illustrates:
For ease of illustrating, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model.
1-compasses head; 2-rotating disk; 3-first leg; 4-second leg; 5-first turn of tooth; 6-second turn of tooth; 7-bolt; 8-knob; 9-circular hole; 10-bearing pin; 11-spring; 12-stitch; 13-screw.
Detailed description of the invention:
As shown in Figure 1, this detailed description of the invention is by the following technical solutions: comprise compasses head 1, rotating disk 2, first leg 3, second leg 4, first turn of tooth 5 and second turn of tooth 6, described compasses head 1 is fixedly connected on the upper end of rotating disk 2, described first turn of tooth 5 and second turn of tooth 6 are movably connected on rotating disk 2 in intermeshing mode, described first turn of tooth 5 is fixedly connected with the first leg 3, described second turn of tooth 6 is fixedly connected with the second leg 4, also comprises bolt 7, knob 8, circular hole 9, bearing pin 10, spring 11, stitch 12 and screw 13; The lower end of described first leg 3 is provided with a circular hole 9; Described bolt 7 is together with knob 8 global formation, and described bolt 7 is arranged in circular hole 9 by screw thread; Described bearing pin 10 is provided with open slot 10a, and described bearing pin 10 is nested in the chamber of the second leg 4; Described screw 13 is arranged on the chamber wall of the second leg 4, and one end of described screw 13 contacts with the open slot 10a of bearing pin 10; Described bearing pin 10 is coated with a spring 11, described bearing pin 10 front end is also fixedly connected with a stitch 12.
Wherein, the overall length of described second leg 4 and bearing pin 10 is greater than the length of the first leg 3; The surface of described knob 8 is provided with annular knurl.
Using state of the present utility model is: place a class by through hole, then screwed by knob, and bearing pin regulates height by screw, thus the height at metering needle angle, is provided with the spring buffer protection that made it have.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a multifunctional compass, comprise compasses head (1), rotating disk (2), first leg (3), second leg (4), first turn of tooth (5) and second turn of tooth (6), described compasses head (1) is fixedly connected on the upper end of rotating disk (2), described first turn of tooth (5) and second turn of tooth (6) are movably connected on rotating disk (2) in intermeshing mode, described first turn of tooth (5) is fixedly connected with the first leg (3), described second turn of tooth (6) is fixedly connected with the second leg (4), it is characterized in that: also comprise bolt (7), knob (8), circular hole (9), bearing pin (10), spring (11), stitch (12) and screw (13),
The lower end of described first leg (3) is provided with a circular hole (9);
Together, described bolt (7) is arranged in circular hole (9) by screw thread for described bolt (7) and knob (8) global formation;
Described bearing pin (10) is provided with open slot (10a), and described bearing pin (10) is nested in the chamber of the second leg (4);
Described screw (13) is arranged on the chamber wall of the second leg (4), and one end of described screw (13) contacts with the open slot (10a) of bearing pin (10);
Described bearing pin (10) is coated with a spring (11), described bearing pin (10) front end is also fixedly connected with a stitch (12).
2. a kind of multifunctional compass according to claim 1, is characterized in that: the overall length of described second leg (4) and bearing pin (10) is greater than the length of the first leg (3).
3. a kind of multifunctional compass according to claim 1, is characterized in that: the surface of described knob (8) is provided with annular knurl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617195.XU CN204172555U (en) | 2014-10-18 | 2014-10-18 | A kind of multifunctional compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617195.XU CN204172555U (en) | 2014-10-18 | 2014-10-18 | A kind of multifunctional compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204172555U true CN204172555U (en) | 2015-02-25 |
Family
ID=52561391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420617195.XU Expired - Fee Related CN204172555U (en) | 2014-10-18 | 2014-10-18 | A kind of multifunctional compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204172555U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252938A (en) * | 2015-11-21 | 2016-01-20 | 赵淑丽 | Centering pin assembly capable of drawing small circle |
| CN107933158A (en) * | 2017-11-16 | 2018-04-20 | 周默 | A kind of compasses easy to use |
-
2014
- 2014-10-18 CN CN201420617195.XU patent/CN204172555U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105252938A (en) * | 2015-11-21 | 2016-01-20 | 赵淑丽 | Centering pin assembly capable of drawing small circle |
| CN107933158A (en) * | 2017-11-16 | 2018-04-20 | 周默 | A kind of compasses easy to use |
| CN107933158B (en) * | 2017-11-16 | 2020-04-28 | 周默 | Compasses convenient to use |
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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: 20150225 Termination date: 20151018 |
|
| EXPY | Termination of patent right or utility model |