CN202965722U - Math teaching board - Google Patents
Math teaching board Download PDFInfo
- Publication number
- CN202965722U CN202965722U CN 201220731575 CN201220731575U CN202965722U CN 202965722 U CN202965722 U CN 202965722U CN 201220731575 CN201220731575 CN 201220731575 CN 201220731575 U CN201220731575 U CN 201220731575U CN 202965722 U CN202965722 U CN 202965722U
- Authority
- CN
- China
- Prior art keywords
- ball
- rolling ball
- utility
- ruler
- chalk
- 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 provides a math teaching board which comprises a blackboard. A slide groove is arranged at the edge of the blackboard, a first rolling ball is positioned in the slide groove, a ruler is positioned on the first rolling ball, a sleeve ring is positioned on the ruler, a chalk seat is arranged on the sleeve ring, a support rod is positioned on the lateral side of the chalk seat, a second rolling ball is positioned in the slide groove, a chalk eraser is arranged on the second rolling ball, and the chalk eraser is connected with the second rolling ball through a rope. The math teaching board is simple in structure, ingenious in design, convenient to operate, capable of saving time and suitable for being popularized.
Description
Technical field
The utility model relates to the teaching equipment field, especially relates to a kind of board for teaching mathematics.
Background technology
At present, the explanation of often need to mapping on blackboard in the mathematical education process is demonstrated, the board for teaching mathematics of prior art, comprise blackboard, be provided with chute at the blackboard edge, be provided with ball in chute, ball is provided with ruler, ruler is provided with the collar, and the collar is provided with the chalk seat, and chalk seat side is provided with pole.The board for teaching mathematics of this structure is cumbersome in the wiping chalk word, need to look for chalkboard eraser everywhere.
Summary of the invention
The purpose of this utility model is to provide board for teaching mathematics, can solve present board for teaching mathematics cumbersome in the wiping chalk word, need to look for the problem of chalkboard eraser everywhere.
Technical scheme provided by the utility model is: a kind of board for teaching mathematics, comprise blackboard, be provided with chute at the blackboard edge, be provided with ball in chute No. one, No. one ball is provided with ruler, ruler is provided with the collar, the collar is provided with the chalk seat, and chalk seat side is provided with pole, the described ball that is provided with No. two in chute, No. two ball is provided with chalkboard eraser, and chalkboard eraser is connected with No. two balls by rope.
The beneficial effects of the utility model are:
The utility model is simple in structure, is provided with ball in chute No. two, is provided with chalkboard eraser on ball, just need not so in use to have gone for chalkboard eraser again, and is easy to operate like this, saved the time, is a kind of new design, is suitable for promoting.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
A kind of board for teaching mathematics as shown in Figure 1, comprise blackboard 1, be provided with chute 2 at blackboard 1 edge, be provided with 3, numbers balls 3 of a ball in chute 2 and be provided with ruler 4, ruler 4 is provided with the collar 5, the collar 5 is provided with chalk seat 6, and chalk seat 6 sides are provided with pole 7, the described ball 8 that is provided with No. two in chute 2, No. two ball 8 is provided with chalkboard eraser 9, and chalkboard eraser 9 is connected with No. two balls 8 by rope 10.Rope 10 also may be replaced by expansion link, described expansion link is the sleeve pipe of different-diameter, realize that by buckle relative position fixes between sleeve pipe, so in use, ball 8 can drive chalkboard eraser 9 and realize transverse movement, expansion link can drive chalkboard eraser and realize lengthwise movement, and by buckle, the chalkboard eraser of fixedly realizing of relative position between sleeve pipe is fixed in a certain position, convenient use at any time.
The utility model is simple in structure, designs ingeniously, is provided with ball in chute No. two, is provided with chalkboard eraser on ball, just need not so in use to have gone for chalkboard eraser again, and is easy to operate like this, saved the time, is a kind of new design, is suitable for promoting.
The above is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (1)
1. board for teaching mathematics, comprise blackboard (1), be provided with chute (2) at blackboard (1) edge, be provided with a ball (3) in chute (2), a ball (3) is provided with ruler (4), ruler (4) is provided with the collar (5), the collar (5) is provided with chalk seat (6), chalk seat (6) side is provided with pole (7), it is characterized in that, be provided with No. two balls (8) in chute (2), No. two balls (8) are provided with chalkboard eraser (9), and chalkboard eraser (9) is connected with No. two balls (8) by rope (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220731575 CN202965722U (en) | 2012-12-27 | 2012-12-27 | Math teaching board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220731575 CN202965722U (en) | 2012-12-27 | 2012-12-27 | Math teaching board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202965722U true CN202965722U (en) | 2013-06-05 |
Family
ID=48506842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220731575 Expired - Fee Related CN202965722U (en) | 2012-12-27 | 2012-12-27 | Math teaching board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202965722U (en) |
-
2012
- 2012-12-27 CN CN 201220731575 patent/CN202965722U/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: 20131227 |