CN205033797U - Teaching compasses - Google Patents
Teaching compasses Download PDFInfo
- Publication number
- CN205033797U CN205033797U CN201520778470.0U CN201520778470U CN205033797U CN 205033797 U CN205033797 U CN 205033797U CN 201520778470 U CN201520778470 U CN 201520778470U CN 205033797 U CN205033797 U CN 205033797U
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- CN
- China
- Prior art keywords
- compasses
- supporting leg
- motor
- teaching
- compasses supporting
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a teaching compasses, a spout and the fixed centre of a circle have been seted up on the first compasses landing leg, L type draw -in groove is installed to first compasses landing leg bilateral symmetry, second compasses landing leg passes through L type draw -in groove and first compasses landing leg sliding connection, a fixed pearl is installed through the pivot to second compasses landing leg one end, the through -hole with pivot matched with has all been seted up on first compasses landing leg and the second compasses landing leg, the pivot end that through -hole threaded connection has the motor is passed to pivot one end, another end screw thread connection has fixed pearl, the coupling nut cover of outband screw thread is installed to 6 one end in the motor, be equipped with the internal thread with nut cover matched with in the fixed centre of a circle, the length of pivot is greater than first compasses landing leg, the thickness total of second compasses landing leg and L type draw -in groove. The utility model discloses novel structure adjusts the angle between two landing legs through the motor, avoids making a fault in the use, has realized 360 degrees rotations of two stabilizer blades, convenient to use, and it is not fragile.
Description
Technical field
The present invention relates to teaching aid field, be specifically related to a kind of teaching compasses.
Background technology
Compasses are essential educational aids in teaching, and modal compasses for teaching all comprises compass shelf, and one end of compass shelf is provided with the locking pin for fixing a bit, and the other end of compass shelf is provided with the housing sleeve for placing chalk.In use, locking pin is penetrated blackboard, then draw, because most of blackboard all has wood materials to make, so use for a long time, blackboard can be damaged.In addition, compasses are placed in classroom, if when student plays, there is potential safety hazard.
Meanwhile, traditional compasses are all directly regulate the distance between two gauge bars all manually to regulate, and because two gauge bars can not be fixed, use in compasses process, are easy to make a fault.
And be to realize 360 degree of rotations between traditional compasses two legs, use and have certain limitation, easily damage.
Summary of the invention
For solving the problem; the invention provides a kind of teaching compasses; novel structure, regulates the angle between two supporting legs by motor, avoids in use making a fault; achieve 360 degree of rotations of two legs; easy to use, simultaneously not affecting under the normal result of use of compasses, during use, blackboard is played a protective role; and avoid student play compasses time, the life of student suffers danger safely.
For achieving the above object, the technical scheme that the present invention takes is:
A kind of teaching compasses, comprise the first compasses supporting leg and the second compasses supporting leg, first compasses supporting leg offers a chute and the fixing center of circle, first compasses supporting leg bilateral symmetry is provided with L-type draw-in groove, second compasses supporting leg is slidably connected by L-type draw-in groove and the first compasses supporting leg, second compasses supporting leg one end is provided with a fixing pearl by rotating shaft, first compasses supporting leg and the second compasses supporting leg all offer the through hole matched with rotating shaft, rotating shaft one end is connected with the rotating shaft end of motor through through hole whorl, the other end has been threaded fixing pearl, motor 6 one end is provided with the externally threaded attaching nut's cover of band, the internal thread matched with nut sleeve is provided with in the fixing center of circle, the length of rotating shaft is greater than the first compasses supporting leg, the thickness summation of the second compasses supporting leg and L-type draw-in groove, negative pressure sucker is installed in first compasses supporting leg one end, second compasses supporting leg one end is provided with chalk fixed cover.
Preferably, described motor is arranged on the below of the first compasses supporting leg.
Preferably, described first compasses supporting leg and L-type draw-in groove one-body molded.
Preferably, described chute and the fixing center of circle one-body molded.
Preferably, described chalk fixed cover side is provided with locking nut.
Preferably, described rotating shaft is connected with the second compasses supporting leg by screw thread.
Preferably, described motor is double steering motor.
Preferably, described first compasses supporting leg one end is provided with hand-held post.
Preferably, described motor is threaded with the fixing center of circle by nut sleeve.
Preferably, be provided with lithium battery in described motor, motor is wrapped with waterproof case, and waterproof case is provided with the charge port be connected with lithium battery.
The present invention has following due to effect:
Novel structure, regulates the angle between two supporting legs by motor, avoids in use making a fault; achieve 360 degree of rotations of two legs; easy to use, simultaneously not affecting under the normal result of use of compasses, during use, blackboard is played a protective role; and avoid student play compasses time; the life of student suffers danger safely, and two supporting legs are by being slidably connected simultaneously, store convenient and swift; do not take up room, and not fragile.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of teaching compasses of the embodiment of the present invention.
Fig. 2 is the rearview of Fig. 1.
Fig. 3 is the syndeton schematic diagram between motor in a kind of teaching compasses of the embodiment of the present invention, rotating shaft, fixing pearl and slide rail.
Fig. 4 is the using state schematic diagram of a kind of teaching compasses of the embodiment of the present invention.
Detailed description of the invention
In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As Figure 1-3, embodiments provide a kind of teaching compasses, comprise the first compasses supporting leg 1 and the second compasses supporting leg 2, first compasses supporting leg 1 offers a chute 4 and the fixing center of circle 5, first compasses supporting leg 1 bilateral symmetry is provided with L-type draw-in groove 12, second compasses supporting leg 2 is slidably connected by L-type draw-in groove 12 and the first compasses supporting leg 1, second compasses supporting leg 2 one end is provided with a fixing pearl 3 by rotating shaft 11, first compasses supporting leg 1 and the second compasses supporting leg 2 all offer the through hole matched with rotating shaft 11, rotating shaft 11 one end is connected with the rotating shaft end of motor 6 through through hole whorl, the other end has been threaded fixing pearl 3, motor 6 one end is provided with the externally threaded attaching nut of band and overlaps 10, the internal thread matched with nut sleeve 10 is provided with in the fixing center of circle 5, the length of rotating shaft 11 is greater than the first compasses supporting leg 1, the thickness summation of the second compasses supporting leg 2 and L-type draw-in groove 12, negative pressure sucker 8 is installed in first compasses supporting leg 1 one end, second compasses supporting leg 2 one end is provided with chalk fixed cover 7.
Described motor 6 is arranged on the below of the first compasses supporting leg 1.
Described first compasses supporting leg 1 is one-body molded with L-type draw-in groove 12.
Described chute 4 is one-body molded with the fixing center of circle 5.
Described chalk fixed cover 7 side is all provided with locking nut.
Described rotating shaft 11 is connected with the second compasses supporting leg 2 by screw thread.
Described motor 6 is double steering motor.
Described first compasses supporting leg 1 one end is provided with hand-held post 9.
Described motor 6 is threaded with the fixing center of circle 5 by nut sleeve 10.
Be provided with lithium battery in described motor 6, motor 6 is wrapped with waterproof case, and waterproof case is provided with the charge port be connected with lithium battery.
Wherein, described first compasses supporting leg 1 is all equal with the second compasses supporting leg 2 length, width and thickness, described waterproof case is provided with the button worked for controlling motor 6, and described negative pressure sucker 8 is arranged on the first compasses supporting leg 1 one sections by rotating shaft, removable and replaceable.
As shown in Figure 4, when this concrete enforcement uses, moving fixing pearl 3 drives the second compasses supporting leg 2 to slide, until motor 6 slides into position, the fixing center of circle 5, by thread bush 10, motor 6 is threaded with the fixing center of circle 5, starter motor, just can the second compasses supporting leg 2 be driven to rotate by rotating shaft 11 as required thus regulate the angle between the first compasses supporting leg 1 and the second compasses supporting leg 2, then chalk is loaded in chalk fixed cover 7, be adsorbed on blackboard by negative pressure sucker 8, rotate compasses and just can complete mapping.
This specifically implements novel structure, regulates the angle between two supporting legs, avoid in use making a fault by motor; achieve 360 degree of rotations of two legs; easy to use, simultaneously not affecting under the normal result of use of compasses, during use, blackboard is played a protective role; and avoid student play compasses time; the life of student suffers danger safely, and two supporting legs are by being slidably connected simultaneously, store convenient and swift; do not take up room, and not fragile.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a teaching compasses, comprise the first compasses supporting leg (1) and the second compasses supporting leg (2), it is characterized in that, first compasses supporting leg (1) offers a chute (4) and the fixing center of circle (5), first compasses supporting leg (1) bilateral symmetry is provided with L-type draw-in groove (12), second compasses supporting leg (2) is slidably connected by L-type draw-in groove (12) and the first compasses supporting leg (1), second compasses supporting leg (2) one end is provided with a fixing pearl (3) by rotating shaft (11), first compasses supporting leg (1) and the second compasses supporting leg (2) all offer the through hole matched with rotating shaft (11), rotating shaft (11) one end is connected with the rotating shaft end of motor (6) through through hole whorl, the other end has been threaded fixing pearl (3), motor (6) one end is provided with externally threaded attaching nut's cover (10) of band, the internal thread matched with nut sleeve (10) is provided with in the fixing center of circle (5), the length of rotating shaft (11) is greater than the first compasses supporting leg (1), the thickness summation of the second compasses supporting leg (2) and L-type draw-in groove (12), negative pressure sucker (8) is installed in first compasses supporting leg (1) one end, second compasses supporting leg (2) one end is provided with chalk fixed cover (7).
2. a kind of teaching compasses according to claim 1, is characterized in that, described motor (6) is arranged on the below of the first compasses supporting leg (1).
3. a kind of teaching compasses according to claim 1, is characterized in that, described first compasses supporting leg (1) is one-body molded with L-type draw-in groove (12).
4. a kind of teaching compasses according to claim 1, is characterized in that, described chute (4) is one-body molded with the fixing center of circle (5).
5. a kind of teaching compasses according to claim 1, is characterized in that, described chalk fixed cover (7) side is provided with locking nut.
6. a kind of teaching compasses according to claim 1, is characterized in that, described rotating shaft (11) is connected with the second compasses supporting leg (2) by screw thread.
7. a kind of teaching compasses according to claim 1, is characterized in that, described motor (6) is double steering motor.
8. a kind of teaching compasses according to claim 1, is characterized in that, described first compasses supporting leg (1) one end is provided with hand-held post (9).
9. a kind of teaching compasses according to claim 1, is characterized in that, described motor (6) is threaded with the fixing center of circle (5) by nut sleeve (10).
10. a kind of teaching compasses according to claim 1, is characterized in that, described motor is provided with lithium battery in (6), and motor (6) is wrapped with waterproof case, and waterproof case is provided with the charge port be connected with lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778470.0U CN205033797U (en) | 2015-10-09 | 2015-10-09 | Teaching compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520778470.0U CN205033797U (en) | 2015-10-09 | 2015-10-09 | Teaching compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205033797U true CN205033797U (en) | 2016-02-17 |
Family
ID=55292723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520778470.0U Withdrawn - After Issue CN205033797U (en) | 2015-10-09 | 2015-10-09 | Teaching compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205033797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150723A (en) * | 2015-10-09 | 2015-12-16 | 陈伟强 | Novel teaching compasses |
-
2015
- 2015-10-09 CN CN201520778470.0U patent/CN205033797U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105150723A (en) * | 2015-10-09 | 2015-12-16 | 陈伟强 | Novel teaching compasses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160217 Effective date of abandoning: 20161012 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |