CN201465343U - combined pointer for teaching - Google Patents
combined pointer for teaching Download PDFInfo
- Publication number
- CN201465343U CN201465343U CN2009200311679U CN200920031167U CN201465343U CN 201465343 U CN201465343 U CN 201465343U CN 2009200311679 U CN2009200311679 U CN 2009200311679U CN 200920031167 U CN200920031167 U CN 200920031167U CN 201465343 U CN201465343 U CN 201465343U
- Authority
- CN
- China
- Prior art keywords
- pointer
- bar
- sleeve
- teaching
- inner sleeve
- 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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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The utility model discloses a combined pointer for teaching, which is characterized in that a pull-rod pointer is arranged in a pointer handle through jet molding, an outer sleeve is arranged at the outer edge of an inner sleeve, a spring is mounted between the inner and the outer sleeves, a saw-toothed opening is arranged at the left end of the inner sleeve and matched with the pull-rod pointer, and a through hole is formed at the right end of the inner sleeve. The utility model adopting the structure has the advantages that the pointer and the chalk sleeve can be used separately; and the combined pointer with simple structure, low manufacturing and processing costs and convenient use and carrying can effectively improve the teaching conditions of teachers.
Description
Technical field
The utility model relates to a kind of new teaching appurtenance, is suitable for a kind of teaching aid of utilizing chalk, blackboard to impart knowledge to students, is a kind of teaching specifically with combination religion bar.
Background technology
Existing instructional mode, generally be directly to hold chalk with hand on blackboard, to write, so not only can make dirty hand, textbook and lecture notes etc., and also the contained material composition of chalk has spread effect to the skin of human body, long-term use can make pachylosis, dry and cracked, even can produce allergy.Directly when holding chalk and write, usually when running low, be not easy to use because of length is short to abandon, cause waste, carrying on class in addition at every turn and teaching bar also is the part nuisance.Although existing now pull bar religion bar comes out, the bar handle is meticulous, uses inconvenience.
Summary of the invention
The purpose of this utility model is to provide a kind of can eliminate above-mentioned shortcoming, chalk sleeve and the teaching of teaching bar to be combined into one combination religion bar.
To achieve these goals, pull bar of the present utility model religion bar is moulded notes in religion bar handle, is provided with an outer sleeve in the outer rim of inner sleeve, end between inner sleeve and outer sleeve is provided with spring, the left end of inner sleeve is the zigzag opening, matches with pull bar religion bar, and right-hand member is provided with a through hole.
By above setting, religion bar of the present utility model and and the chalk sleeve can separately use, simple in structure, the processing and manufacturing cost is low, uses easy to carryly, can effectively improve numerous teachers' teaching condition.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model religion bar.
Fig. 3 is the structural representation of chalk sleeve of the present utility model.
Among the figure 1, pull bar religion bar 2, religion bar handle 3, inner sleeve 4, outer sleeve 5, spring 6, through hole
Embodiment
As shown in Figure 1, 2, 3, pull bar religion bar 1 of the present utility model is moulded notes in religion bar handle 2, outer rim at inner sleeve 3 is provided with an outer sleeve 4, end between inner sleeve 3 and outer sleeve 4 is provided with spring 5, the left end of inner sleeve 3 is the zigzag opening, match with pull bar religion bar 1, right-hand member is provided with a through hole 6.The teacher teaches bar and chalk sleeve separately to use in use, and the zigzag opening of chalk by inner sleeve 3 left ends inserted, press the right-hand member of inner sleeve 3 with hand, make spring 5 compressions between itself and the outer sleeve 4, the extension of scalable chalk, chalk fractures when remaining in the cover bucket, can take out by through hole 6, when using the religion bar, hold religion bar handle 2, pulling pull bar religion bar 1 top can make religion bar extended length, makes its shortening with finishing, insert in the chalk sleeve, form one.The utility model is simple in structure, and low cost of manufacture is used easy to carryly, can effectively improve numerous teachers' teaching condition.
Claims (1)
1. teaching is taught bar with combination, it is characterized in that: pull bar religion bar (1) is moulded notes in religion bar handle (2), outer rim at inner sleeve (3) is provided with an outer sleeve (4), end between inner sleeve (3) and outer sleeve (4) is provided with spring (5), the left end of inner sleeve (3) is the zigzag opening, match with pull bar religion bar (1), right-hand member is provided with a through hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200311679U CN201465343U (en) | 2009-08-14 | 2009-08-14 | combined pointer for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200311679U CN201465343U (en) | 2009-08-14 | 2009-08-14 | combined pointer for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201465343U true CN201465343U (en) | 2010-05-12 |
Family
ID=42392691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200311679U Expired - Fee Related CN201465343U (en) | 2009-08-14 | 2009-08-14 | combined pointer for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201465343U (en) |
-
2009
- 2009-08-14 CN CN2009200311679U patent/CN201465343U/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: 20100512 Termination date: 20100814 |