CN202986466U - Chalk dustproof sleeve - Google Patents
Chalk dustproof sleeve Download PDFInfo
- Publication number
- CN202986466U CN202986466U CN 201220735389 CN201220735389U CN202986466U CN 202986466 U CN202986466 U CN 202986466U CN 201220735389 CN201220735389 CN 201220735389 CN 201220735389 U CN201220735389 U CN 201220735389U CN 202986466 U CN202986466 U CN 202986466U
- Authority
- CN
- China
- Prior art keywords
- chalk
- dust
- utility
- dustproof sleeve
- model
- 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 teaching equipment, and provides a chalk dustproof sleeve. The sleeve comprises a shell, wherein one end of the shell is provided with an opening, and the other end of the shell is provided with a rotating cover; the rotating cover is in transmission connection with a chalk mounting seat through a screw; and elastic chalk clamps are arranged on the chalk mounting seat. A chalk is placed into the chalk dustproof sleeve, a user writes while holding the chalk dustproof sleeve in a hand, the phenomenon that chalk dust falls, and the hand of the user is stained with the chalk dust is avoided, and the chalk dustproof sleeve is convenient to use and is clean and sanitary.
Description
Technical field
The utility model relates to a kind of teaching equipment, particularly a kind of dust-proof cover for chalk.
Background technology
In present teaching, blackboard and chalk remain main instrument, and the existing chalk dust that easily comes off in use sticks in the user on hand, and is unclean, bring certain hidden danger for user's health.
The utility model content
In view of this, the utility model provides a kind of dust-proof cover for chalk, can prevent that the user is infected with chalk dust on hand.
The utility model solves the problems of the technologies described above by following technological means:
A kind of dust-proof cover for chalk of the present utility model comprises housing, described housing one end opening, and the other end is provided with swivelling cover, and described swivelling cover is in transmission connection by screw rod and chalk mount pad, is provided with elasticity chalk card on described chalk mount pad.
Further, described elasticity chalk card is 4, is uniformly distributed on the chalk mount pad.
The beneficial effects of the utility model: dust-proof cover for chalk of the present utility model, with chalk install with dust-proof cover for chalk in, the hand-held dust-proof cover for chalk of user is write, and does not have chalk dust and comes off and be infected with the user on hand, and is easy to use, sanitation and hygiene.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below with reference to accompanying drawing, the utility model is elaborated, as shown in the figure: dust-proof cover for chalk, comprise housing 1, described housing 1 one end openings, the other end is provided with swivelling cover 2, described swivelling cover 2 is in transmission connection by screw rod 3 and chalk mount pad 4, is provided with elasticity chalk card 5 on described chalk mount pad 4.Described elasticity chalk card 5 is 4, is uniformly distributed on chalk mount pad 4.
In use, chalk 6 is packed in housing 1, the bottom that elasticity chalk card 5 blocks chalk 6, the swivelling cover 2 of rotation dust-proof cover for chalk bottom, chalk 6 is namely scalable.
Explanation is at last, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (2)
1. dust-proof cover for chalk, it is characterized in that: comprise housing (1), described housing (1) one end opening, the other end is provided with swivelling cover (2), described swivelling cover (2) is in transmission connection by screw rod (3) and chalk mount pad (4), is provided with elasticity chalk card (5) on described chalk mount pad (4).
2. dust-proof cover for chalk according to claim 1, it is characterized in that: described elasticity chalk card (5) is 4, is uniformly distributed on chalk mount pad (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735389 CN202986466U (en) | 2012-12-27 | 2012-12-27 | Chalk dustproof sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735389 CN202986466U (en) | 2012-12-27 | 2012-12-27 | Chalk dustproof sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202986466U true CN202986466U (en) | 2013-06-12 |
Family
ID=48557678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220735389 Expired - Fee Related CN202986466U (en) | 2012-12-27 | 2012-12-27 | Chalk dustproof sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202986466U (en) |
-
2012
- 2012-12-27 CN CN 201220735389 patent/CN202986466U/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: 20130612 Termination date: 20131227 |