CN202976566U - A compass pointer - Google Patents
A compass pointer Download PDFInfo
- Publication number
- CN202976566U CN202976566U CN 201220602912 CN201220602912U CN202976566U CN 202976566 U CN202976566 U CN 202976566U CN 201220602912 CN201220602912 CN 201220602912 CN 201220602912 U CN201220602912 U CN 201220602912U CN 202976566 U CN202976566 U CN 202976566U
- Authority
- CN
- China
- Prior art keywords
- pointer
- pen
- teacher
- bar
- rod
- 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
The utility model relates to a compass pointer and belongs to the field of teaching article technology. The pointer comprises a drawing rod (1) and a fixing rod (2). The connecting end of the drawing rod (1) is movably connected with the connecting end of the fixing rod (2) by a bolt. An adsorbing disc (3) is disposed on the fixing end of the fixing rod (2). A pen (4) is disposed on the drawing end of the drawing rod (1). The pen (4) and the fixingrod (2) are both telescopic. Being the adsorbing disc, the fixing end of the compass pointer can be firmly fixed on a blackboard or a whiteboard. The telescopic pen and the fixing rod may draw circles with different radius so that flexible use is achieved. In addition, the pen is protected and space is saved when the compass pointer is stored. A magnet is disposed on the drawing rod so the pointer can be adsorbed on the whiteboard when the whiteboard is used, preventing easy losing.
Description
Technical field
The utility model relates to a kind of teaching aid teacher's pointer, and more particularly, the utility model relates to a kind of compasses-type teacher's pointer, belongs to the realia technical field.
Background technology
In the teaching aid field, teacher's pointer is an ordinary articles, teacher's pointer the earliest be one metal rectangular or wooden rectangular, be used to indicate the word on blackboard, the teacher's pointer that compasses-type occurred afterwards, very convenient in upper geometry curriculum, but original compasses-type teacher's pointer is difficult to the circle of picture different radii, and fixed position is difficult to be fixed on blackboard.
It is 201120497923.4 that State Intellectual Property Office discloses an application number in 2012.9.5, name is called the utility model of " with the pen of compasses and teacher's pointer ", this patent discloses a kind of pen with compasses and teacher's pointer, it is characterized in that in the upper end of pen, a rotary circular rings being installed, in circular rings one side, needle of compasses is installed, the teacher's pointer that can stretch is installed above circular rings.Its beneficial effect is: need not be fixed on paper as long as pull open needle of compasses by other instruments when drawing circle, the pencil of the other end just can arbitrarily be drawn circle, and the teacher can also extract teacher's pointer out and help teacher to give advice.
Although above-mentioned prior art scheme teacher's pointer has the function of compasses, can only still can't realize at the blackboard upper drawing circle at the paper upper drawing circle, and fixing also firm not, the radius of circle of picture is limited.
The utility model content
The utility model is intended to solve above-mentioned teacher's pointer can't be fixed not firmly and the limited problem of radius of circle of drawing at the blackboard upper drawing circle, and a kind of compasses-type teacher's pointer that is applicable to use on blackboard is provided.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of compasses-type teacher's pointer, comprise drawing bar and fixed bar, the link of described drawing bar and fixed bar is flexibly connected by bolt, it is characterized in that: described fixed bar is provided with sucker with respect to the other end of link, described drawing bar is provided with pen with respect to the other end of link, and described pen and fixed bar are telescopic.
Preferably, be provided with magnet on described drawing bar.
The useful technique effect that the utility model brings:
It is sucker that compasses-type teacher's pointer of the present utility model is fixed an end; can firmly be fixed on blackboard or blank; described pen and and fixed bar be telescopic; can draw the circle of different radii, use flexibly, also can protect pen and conserve space when depositing; on the drawing bar, magnet is set; when using blank, teacher's pointer can be inhaled on blank, be not easy to lose.
Description of drawings
Structural representation when Fig. 1 is the utility model use calipers function.
Fig. 2 is the utility model drawing end and and the interior structural representation of stiff end retraction teacher's pointer.
Fig. 3 is the structural representation of the utility model when depositing.
1 is that drawing bar, 2 is that fixed bar, 3 is that sucker, 4 is that pen, 5 is magnet.
Embodiment
Embodiment 1
A kind of compasses-type teacher's pointer, comprise drawing bar 1 and fixed bar 2, the link of described drawing bar 1 and fixed bar 2 is flexibly connected by bolt, and the stiff end of described fixed bar 2 is provided with sucker 3, the drawing end of described drawing bar 1 is provided with pen 4, and described pen 4 and fixed bar 2 are telescopic.
Embodiment 2
A kind of compasses-type teacher's pointer, comprise drawing bar 1 and fixed bar 2, the link of described drawing bar 1 and fixed bar 2 is flexibly connected by bolt, and the stiff end of described fixed bar 2 is provided with sucker 3, the drawing end of described drawing bar 1 is provided with pen 4, and described pen 4 and fixed bar 2 are telescopic.
Be provided with magnet 5 on described drawing bar 1.
Claims (2)
1. compasses-type teacher's pointer, comprise drawing bar (1) and fixed bar (2), the link of described drawing bar (1) and fixed bar (2) is flexibly connected by bolt, it is characterized in that: described fixed bar (2) is provided with sucker (3) with respect to the other end of link, described drawing bar (1) is provided with pen (4) with respect to the other end of link, and described pen (4) and fixed bar (2) are telescopic.
2. a kind of compasses-type teacher's pointer according to claim 1, is characterized in that: be provided with magnet (5) on described drawing bar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602912 CN202976566U (en) | 2012-11-15 | 2012-11-15 | A compass pointer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220602912 CN202976566U (en) | 2012-11-15 | 2012-11-15 | A compass pointer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202976566U true CN202976566U (en) | 2013-06-05 |
Family
ID=48517611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220602912 Expired - Fee Related CN202976566U (en) | 2012-11-15 | 2012-11-15 | A compass pointer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202976566U (en) |
-
2012
- 2012-11-15 CN CN 201220602912 patent/CN202976566U/en not_active Expired - Fee Related
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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: 20130605 Termination date: 20131115 |