CN200992076Y - Electric compassess - Google Patents
Electric compassess Download PDFInfo
- Publication number
- CN200992076Y CN200992076Y CN 200720017119 CN200720017119U CN200992076Y CN 200992076 Y CN200992076 Y CN 200992076Y CN 200720017119 CN200720017119 CN 200720017119 CN 200720017119 U CN200720017119 U CN 200720017119U CN 200992076 Y CN200992076 Y CN 200992076Y
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- chalk
- handle
- rubber seat
- utility
- 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
Abstract
The utility model discloses an electric bow compass, belonging to the teaching appliance. A control switch is arranged on one side of the lower part of the handle, and a connecting rod 1 is arranged in the middle of the lower part of the handle. The lower part of the connecting rod 1 in which the battery is provided is connected with a connecting rod 2. A micro direct current motor is arranged between the connecting rod 1 and the connecting rod 2. A rubber seat is arranged at the end of the connecting rod 2, and an expansion probe is arranged in the middle of the bottom of the rubber seat. A scale, on which a sliding block is arranged, is fixed on the side surface of the micro direct current motor. A connecting rod 3 is arranged at the lower part of the slding block, and a chalk clip is arranged inside the connecting rod 3. A spring arranged inside the connecting rod 3 is contacted with the chalk clip. Compared with the prior art, the utility model has the advantages of reasonable design, simple structure, easy production, convenient operation, safety and reliability.
Description
Technical field
The utility model relates to a kind of teaching aid, specifically electronic compasses.
Background technology
At present, the compasses that the teacher of school uses in teaching mainly or an original end is sharp-pointed termination, one end is the yoke formula compasses of chalk, the teacher is when using this compasses, if firmly excessive, the blackboard surface can be damaged in sharp-pointed termination, perhaps chalk is broken, if firmly lighter, compasses are easy to drop.And in drawing the circle process, teacher's arm twisting feels very uncomfortable.
Summary of the invention
Technical assignment of the present utility model is at above weak point, and a kind of simple in structure, electronic compasses that production cost is low, easy to use are provided.
The technical scheme that its technical problem that solves the utility model adopts is: below one side of handle is provided with gauge tap, the central lower of handle is provided with connecting rod one, in the connecting rod one battery is housed, the below of connecting rod one connects connecting rod two, be provided with DC micromotor between connecting rod one and the connecting rod two, the bottom of connecting rod two is provided with the rubber seat, the bottom dead center position of rubber seat is provided with pogo pin, the side of DC micromotor is fixed with rule, rule is provided with slide block, and slide block is provided with the locking button, and the below of slide block is provided with connecting rod three, the bottom of connecting rod three is provided with the chalk folder, and the chalk in being provided with spring in the connecting rod three and chalk pressing from both sides contacts.
During use, one holds handle, and pogo pin is aimed at the drawn center of circle, and in gently pressure made pogo pin withdrawal rubber seat, the position of adjusting slider reached drawn radius of a circle then; Press gauge tap, DC micromotor starts, and drives rule and rotates around connecting rod one and connecting rod two.Under the effect of the spring in connecting rod three, chalk closely contacts with the blackboard surface, do thereby easily finish the picture sired results, and the closing control switch, DC micromotor quits work.
Electronic compasses of the present utility model are compared with prior art, have reasonable in design, simple in structure, be easy to processing, characteristics such as esy to use, safe and reliable.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Accompanying drawing is the structural representation of electronic compasses.
Among the figure: 1, handle, 2, gauge tap, 3, battery, 4, DC micromotor, 5, connecting rod two, 6, rubber seat, 7, pogo pin, 8, connecting rod one, 9, rule, 10, the locking button, 11, slide block, 12, connecting rod three, 13, spring, 14, the chalk folder, 15, chalk.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
Electronic compasses of the present utility model, below one side of handle 1 is provided with gauge tap 2, the central lower of handle 1 is provided with connecting rod 1, battery 3 is housed in the connecting rod 1, the below of connecting rod 1 connects connecting rod 25, be provided with DC micromotor 4 between connecting rod 1 and the connecting rod 25, the bottom of connecting rod 25 is provided with rubber seat 6, the bottom dead center position of rubber seat 6 is provided with pogo pin 7, the side of DC micromotor 4 is fixed with rule 9, rule 9 is provided with slide block 11, slide block 11 is provided with locking button 10, the below of slide block 11 is provided with connecting rod 3 12, and the bottom of connecting rod 3 12 is provided with chalk folder 14, is provided with spring 13 in the connecting rod 3 12 and contacts with the chalk 15 that chalk presss from both sides in 14.
Its processing and fabricating of electronic compasses of the present utility model is very simple and convenient, and processing and fabricating gets final product shown in the by specification accompanying drawing.
Except that the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (2)
1, electronic compasses, below one side that it is characterized in that handle is provided with gauge tap, the central lower of handle is provided with connecting rod one, in the connecting rod one battery is housed, the below of connecting rod one connects connecting rod two, be provided with DC micromotor between connecting rod one and the connecting rod two, the bottom of connecting rod two is provided with the rubber seat, the bottom dead center position of rubber seat is provided with pogo pin, the side of DC micromotor is fixed with rule, and rule is provided with slide block, and the below of slide block is provided with connecting rod three, the bottom of connecting rod three is provided with the chalk folder, and the chalk in being provided with spring in the connecting rod three and chalk pressing from both sides contacts.
2, electronic compasses according to claim 1 is characterized in that slide block is provided with the locking button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720017119 CN200992076Y (en) | 2007-01-08 | 2007-01-08 | Electric compassess |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720017119 CN200992076Y (en) | 2007-01-08 | 2007-01-08 | Electric compassess |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200992076Y true CN200992076Y (en) | 2007-12-19 |
Family
ID=38945152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720017119 Expired - Fee Related CN200992076Y (en) | 2007-01-08 | 2007-01-08 | Electric compassess |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200992076Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697789A (en) * | 2013-12-20 | 2014-04-02 | 成都市容华电子有限公司 | Marking device for measurement |
| CN104180741A (en) * | 2014-08-06 | 2014-12-03 | 奇瑞重工股份有限公司 | Multifunctional testing fixture |
| CN108583084A (en) * | 2018-05-28 | 2018-09-28 | 喻正江 | A kind of compasses for teaching |
| CN109458995A (en) * | 2018-11-08 | 2019-03-12 | 林宸妤 | A kind of indoor decoration design surveying setting-out device |
| CN112590431A (en) * | 2021-01-06 | 2021-04-02 | 杨玮玮 | Drawing instrument for mathematics teaching |
| CN112793339A (en) * | 2021-02-04 | 2021-05-14 | 日照职业技术学院 | Mathematics teaching is with automatic drawing device |
-
2007
- 2007-01-08 CN CN 200720017119 patent/CN200992076Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697789A (en) * | 2013-12-20 | 2014-04-02 | 成都市容华电子有限公司 | Marking device for measurement |
| CN104180741A (en) * | 2014-08-06 | 2014-12-03 | 奇瑞重工股份有限公司 | Multifunctional testing fixture |
| CN104180741B (en) * | 2014-08-06 | 2017-07-21 | 中联重机股份有限公司 | A kind of Multifunctional check tool |
| CN108583084A (en) * | 2018-05-28 | 2018-09-28 | 喻正江 | A kind of compasses for teaching |
| CN109458995A (en) * | 2018-11-08 | 2019-03-12 | 林宸妤 | A kind of indoor decoration design surveying setting-out device |
| CN112590431A (en) * | 2021-01-06 | 2021-04-02 | 杨玮玮 | Drawing instrument for mathematics teaching |
| CN112793339A (en) * | 2021-02-04 | 2021-05-14 | 日照职业技术学院 | Mathematics teaching is with automatic drawing device |
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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: 20071219 |