CN202573421U - Environment-friendly chalk sleeve - Google Patents
Environment-friendly chalk sleeve Download PDFInfo
- Publication number
- CN202573421U CN202573421U CN 201220112027 CN201220112027U CN202573421U CN 202573421 U CN202573421 U CN 202573421U CN 201220112027 CN201220112027 CN 201220112027 CN 201220112027 U CN201220112027 U CN 201220112027U CN 202573421 U CN202573421 U CN 202573421U
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- chalk
- sleeve
- chute
- friendly
- 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 an environment-friendly chalk sleeve. The chalk sleeve mainly comprises a sleeve pipe I, a sleeve pipe II, a sliding block and a sleeve pipe cap, wherein the sleeve pipe cap is arranged at one end of the sleeve pipe I; the other end of the sleeve pipe I is in threaded connection with the sleeve pipe II; a chute is formed on the sleeve pipe I; sawtooth groove walls are formed on two sides of the chute; the sliding block can slide on the chute in a reciprocating mode; two elastic claws are arranged on the tail part of the sliding block; and three thin and long grooves are formed on the sleeve pipe II to divide a pipe wall into three parts. By the chalk sleeve, phenomena that chalks are broken, and chalk powder does harm to skin can be avoided; the chalk sleeve is environment-friendly and sanitary; and the chalk sleeve has good popularization and using value.
Description
Technical field
The utility model relates to the articles for education and teaching technical field, specifically is a kind of environmentally-friendly chalk holder.
Background technology
In daily education and instruction, the chalk educational aid that is absolutely necessary.In the process of using chalk, chalk is usually fractureed into some chalk heads easily, and no longer is used, and causes the waste of resource.On the other hand, because chalk directly contacts with finger skin, cause finger skin coarse (teacher who particularly is engaged in teaching for a long time) easily, chalk dust can be bonded on skin or the clothes, and is both unclean also unhygienic.To the problems referred to above, the utility model has designed a kind of environmentally-friendly chalk holder.
The utility model content
The utility model provides a kind of environmentally-friendly chalk holder, and the utility model can avoid chalk to fracture and the harmful effect of chalk dust to skin, environmentally-friendly sanitary.
For realizing above-mentioned purpose, the described environmentally-friendly chalk holder of the utility model comprises sleeve pipe one, sleeve pipe two, slide block and sleeve cap.Sleeve cap is installed in an end of sleeve pipe one, and the other end of sleeve pipe one and sleeve pipe two are through being threaded.
Have chute on the described sleeve pipe one, the chute both sides are the zigzag cell wall, and slide block can reciprocatingly slide on chute, and slider tail has two elastic claws.
Have three elongated slots on the described sleeve pipe two, tube wall is divided into three parts.
The utility model adopts technique scheme can avoid chalk to fracture and the harmful effect of chalk dust to skin, and environmentally-friendly sanitary has good value for applications.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the embodiment one of the utility model;
Fig. 3 is the embodiment two of the utility model;
Wherein, 1, sleeve pipe one, 2, sleeve pipe two, 3, slide block, 4, sleeve cap, 5, chalk one, 6, chalk two.
The specific embodiment
Fig. 1 is the structural representation of the utility model.The described environmentally-friendly chalk holder of the utility model comprises sleeve pipe 1, sleeve pipe 22, slide block 3 and sleeve cap 4.Sleeve cap 4 is installed in an end of sleeve pipe 1, and the other end of sleeve pipe 1 and sleeve pipe 22 are through being threaded.Have chute on the sleeve pipe 1, the chute both sides are the zigzag cell wall, and slide block 3 can reciprocatingly slide on chute.Slide block 3 afterbodys have two elastic claws.Have three elongated slots on the sleeve pipe 22, tube wall is divided into three parts.
Fig. 2 and Fig. 3 are the embodiment of the utility model; During concrete the application, the screw thread of outward winding joint sleeve 1 and sleeve pipe 22 is respectively charged into sleeve pipe 1 and sleeve pipe 22 with chalk 1 and chalk 26; Then with sleeve pipe 1 and sleeve pipe 22 through being threaded, this moment, state was as shown in Figure 2.In the process of on blackboard, writing, regulate the length that chalk exposes sleeve pipe 22 through promoting slide block 3, when chalk 6 was exhausted, this moment, state was as shown in Figure 3, need the slide block direction be pushed back afterwards, reloaded a complete chalk again in the sleeve pipe 1.
The utility model adopts technique scheme can avoid chalk to fracture and the harmful effect of chalk dust to skin, and environmentally-friendly sanitary has good value for applications.
Claims (3)
1. an environmentally-friendly chalk holder is characterized in that: mainly comprise sleeve pipe one, sleeve pipe two, slide block and sleeve cap.Sleeve cap is installed in an end of sleeve pipe one, and the other end of sleeve pipe one and sleeve pipe two are through being threaded.
2. a kind of environmentally-friendly chalk holder according to claim 1 is characterized in that: have chute on the described sleeve pipe one, the chute both sides are the zigzag cell wall, and slide block can reciprocatingly slide on chute, and slider tail has two elastic claws.
3. a kind of environmentally-friendly chalk holder according to claim 1 is characterized in that: have three elongated slots on the described sleeve pipe two, tube wall is divided into three parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220112027 CN202573421U (en) | 2012-03-22 | 2012-03-22 | Environment-friendly chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220112027 CN202573421U (en) | 2012-03-22 | 2012-03-22 | Environment-friendly chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202573421U true CN202573421U (en) | 2012-12-05 |
Family
ID=47242866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220112027 Expired - Fee Related CN202573421U (en) | 2012-03-22 | 2012-03-22 | Environment-friendly chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202573421U (en) |
-
2012
- 2012-03-22 CN CN 201220112027 patent/CN202573421U/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: 20121205 Termination date: 20130322 |