CN201856493U - Chalk sleeve - Google Patents
Chalk sleeve Download PDFInfo
- Publication number
- CN201856493U CN201856493U CN201020275561XU CN201020275561U CN201856493U CN 201856493 U CN201856493 U CN 201856493U CN 201020275561X U CN201020275561X U CN 201020275561XU CN 201020275561 U CN201020275561 U CN 201020275561U CN 201856493 U CN201856493 U CN 201856493U
- Authority
- CN
- China
- Prior art keywords
- chalk
- bamboo trunk
- bamboo tube
- chalk sleeve
- described bamboo
- 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
Links
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract description 58
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract description 58
- 241001330002 Bambuseae Species 0.000 claims abstract description 58
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract description 58
- 239000011425 bamboo Substances 0.000 claims abstract description 58
- 238000007789 sealing Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 abstract 1
- 210000003128 head Anatomy 0.000 description 11
- 230000007613 environmental effect Effects 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a device attached to a chalk, which is used in the teaching filed, and discloses an environmentally friendly chalk sleeve with a simple structure. The chalk sleeve comprises a hollow bamboo tube; a gap groove capable of being expanded and closed is formed at one end of the bamboo tube; a layer of rubber ring capable of moving front and back is arranged on the surface of the bamboo tube; and the inner diameter of the bamboo tube is 3cm to 6cm. As the bamboo tube sheet also has certain elasticity, a small section of chalk end can be embedded in the bamboo tube with the gap groove capable of being expanded and closed; and then the chalk end is fixed with the help of the elastic force of the rubber ring. Therefore, the chalk sleeve solves the difficult problem of environment pollution caused by chalk end waste and random discard of the chalk end; and furthermore, the chalk sleeve has a unique structure, is convenient to use, and is environmentally friendly and practical.
Description
Technical field
The utility model relates to and a kind ofly is attached to device on the chalk what teaching field used, relates in particular to a kind of chalk sleeve of simple in structure, environmental protection.
Background technology
Now in teaching, teacher student often uses chalk, especially the frequent especially use of teacher, in order not allow teacher injure health because of chalk, having occurred various devices at present is attached on the chalk, these device common plasticses or aluminium flake are made, be unfavorable for environmental protection, and these auxiliary equipments usually are for whole long chalk designs, have used nearly 2/3rds for some chalk at present, because chalk has shortened, bad taking, thus will at will abandon, thus cause having wasted on the one hand chalk, one side at will abandons and causes ground, classroom unclean in addition, contaminated environment.
The utility model content
The utility model at will abandons when being left fraction at the chalk use that exists in the prior art and causes wasting and contaminated environment, and some are attached to the problem that device on the chalk is unfavorable for environmental protection, and the chalk sleeve of a kind of structure uniqueness, easy to use, economical and practical, environmental protection is provided.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
Chalk sleeve comprises hollow bamboo trunk, but an end of described bamboo trunk has the gap slot of opening and closing, described bamboo trunk surface be provided with one deck can before and after the elastic tape that moves.Because but bamboo trunk one end has the gap slot of opening and closing, because of the bamboo trunk sheet also has certain elasticity, but use the chalk of a remaining trifle can embed the bamboo trunk that has the opening and closing gap slot, move the elastic tape that is enclosed within the bamboo trunk surface then, fix the chalk head that embeds bamboo trunk by the elastic force of elastic tape, bamboo trunk helps environmental protection.
As preferably, described bamboo trunk is provided with the sealing cover away from the other end of gap slot.Do not have the chalk powder when helping avoiding using this device of being with the chalk head on blackboard, to write and flow down, do dirty end user's the clothes or the eyes of harm people along bamboo trunk inside.
As preferably, the intermediate hollow place of described bamboo trunk is provided with a closing cock.Do not have the chalk powder when helping avoiding using this device of being with the chalk head on blackboard, to write and flow down, do dirty end user's the clothes or the eyes of harm people along bamboo trunk inside.
As preferably, the internal diameter of described bamboo trunk is 3-6cm.Help making the internal diameter size of bamboo trunk and the diameter basically identical of chalk, more help chalk and entangle use firm.
As preferably, the internal diameter of described bamboo trunk is 4cm.Help most making the internal diameter size of bamboo trunk and the diameter basically identical of chalk, more help entangling firm use.
According to the technical solution of the utility model, having solved has wasted the chalk head and the chalk head at will abandons a difficult problem that causes contaminated environment at present, uses bamboo trunk simultaneously, is more conducive to environmental protection, structure uniqueness, easy to use, economical and practical.
Description of drawings
Fig. 1 is the structural representation of the utility model chalk sleeve;
Fig. 2 for the utility model in an embodiment chalk sleeve entangle the structural representation of chalk head.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Chalk sleeve as shown in Figure 1 and Figure 2, comprises hollow bamboo trunk 1, but an end of described bamboo trunk 1 has the gap slot 11 of opening and closing, described bamboo trunk 1 surface go up cover one deck can before and after the elastic tape 2 that moves.Described bamboo trunk 1 is provided with sealing cover 3 away from the other end of gap slot 11.The internal diameter of described bamboo trunk 1 is 4cm.
In the said structure, because but bamboo trunk one end has the gap slot of opening and closing, because of the bamboo trunk sheet also has certain elasticity, use the chalk of a remaining trifle can embed bamboo trunk, move the elastic tape that is enclosed within the bamboo trunk surface then, fix the chalk head that embeds bamboo trunk by the elastic force of elastic tape, just can use the chalk head and save resource; Described bamboo trunk is provided with the sealing cover away from the other end of gap slot.Do not have the chalk powder when helping avoiding using this device of being with the chalk head on blackboard, to write and flow down, do dirty end user's the clothes or the eyes of harm people along bamboo trunk inside.The internal diameter of described bamboo trunk is that 4cm helps making the internal diameter size of bamboo trunk and the diameter basically identical of chalk most, more helps entangling firm use chalk head.Use bamboo trunk more to help environmental protection.
Chalk sleeve as shown in Figure 1 and Figure 2, comprises hollow bamboo trunk 1, but an end of described bamboo trunk 1 has the gap slot 11 of opening and closing, described bamboo trunk 1 surface go up cover one deck can before and after the elastic tape 2 that moves.The inside middle hollow position of described bamboo trunk 1 is provided with a closing cock.The internal diameter of described bamboo trunk 1 is 3cm.The inside middle hollow position of described bamboo trunk 1 is provided with and does not have the chalk powder when device that a closing cock helps avoiding using this band chalk head writes flow down along bamboo trunk inside on blackboard, does dirty end user's the clothes or the eyes of harm people.
Chalk sleeve as shown in Figure 1 and Figure 2, comprises hollow bamboo trunk 1, but an end of described bamboo trunk 1 has the gap slot 11 of opening and closing, described bamboo trunk 1 surface go up cover one deck can before and after the elastic tape 2 that moves.The inside middle hollow position of described bamboo trunk 1 is provided with a closing cock.The internal diameter of described bamboo trunk 1 is 6cm.
In a word, the above only is preferred embodiment of the present utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (5)
1. chalk sleeve comprises hollow bamboo trunk (1), it is characterized in that: described bamboo trunk (1) but an end have the gap slot (11) of opening and closing, on described bamboo trunk (1) surface cover one deck can before and after the elastic tape (2) that moves.
2. chalk sleeve according to claim 1 is characterized in that: described bamboo trunk (1) is provided with sealing cover (3) away from the other end of gap slot (11).
3. chalk sleeve according to claim 1 is characterized in that: the inside middle hollow position of described bamboo trunk (1) is provided with a closing cock.
4. according to claim 1 or 2 or 3 described chalk sleeves, it is characterized in that: the internal diameter of described bamboo trunk (1) is 3-6cm.
5. chalk sleeve according to claim 4 is characterized in that: the internal diameter of described bamboo trunk (1) is 4cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020275561XU CN201856493U (en) | 2010-07-29 | 2010-07-29 | Chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020275561XU CN201856493U (en) | 2010-07-29 | 2010-07-29 | Chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201856493U true CN201856493U (en) | 2011-06-08 |
Family
ID=44102309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020275561XU Expired - Fee Related CN201856493U (en) | 2010-07-29 | 2010-07-29 | Chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201856493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183541A (en) * | 2016-07-21 | 2016-12-07 | 三江县善茶轩工艺品有限公司 | Bamboo pen-holder |
-
2010
- 2010-07-29 CN CN201020275561XU patent/CN201856493U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183541A (en) * | 2016-07-21 | 2016-12-07 | 三江县善茶轩工艺品有限公司 | Bamboo pen-holder |
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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: 20110608 Termination date: 20120729 |