CN203864239U - Environment-friendly chalk sleeve - Google Patents
Environment-friendly chalk sleeve Download PDFInfo
- Publication number
- CN203864239U CN203864239U CN201420266143.2U CN201420266143U CN203864239U CN 203864239 U CN203864239 U CN 203864239U CN 201420266143 U CN201420266143 U CN 201420266143U CN 203864239 U CN203864239 U CN 203864239U
- Authority
- CN
- China
- Prior art keywords
- chalk
- diameter
- pen cap
- friendly
- environmentally
- 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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- Pens And Brushes (AREA)
Abstract
The utility model relates to an environment-friendly chalk sleeve which comprises a chalk sleeve body, a piece of chalk and a push rod. The chalk sleeve body is of a cylinder structure on the whole, one side of the chalk sleeve body is provided with a thin-walled trumpet structure, the diameter of an outer port is smaller than that of an inner port, the outer surface of the other side of the chalk sleeve body is provided with an inward-concave arc-shaped face, the inner wall of the side, close to a chalk outlet, of the chalk sleeve body is provided with a clamping sleeve, the outer surface of the clamping sleeve is of a cylinder structure, an inner cavity of the clamping sleeve is of a circular truncated cone structure, the diameter of the end, close to the chalk outlet, of the inner cavity is smaller than that of the other end of the inner cavity, and one end of the push rod is provided with an elastic ball. The chalk sleeve is simple in structure and reasonable in design, can be well suitable for common chalk with a big end, a small end and a hexagonal outer surface, and conforms to human engineering well.
Description
Technical field
the utility model relates to a kind of pen cap, relates in particular to a kind of environmentally-friendly chalk holder.
Background technology
at present, on school teacher's chalk used, expose completely, the stool that exerted oneself a little while writing can fracture, and use not exclusively, often also have very long hand to pinch incessantly, teacher's hand is also stained with chalk dust because writing, both uneconomical, also unhygienic, the environmentally-friendly chalk holder of announcing according to Chinese Patent Application No. 200810048617.5, wherein the pen cap is cylindrical structural, but the chalk in reality generally is one end, large one end is little, and outer surface is hexagonal structure, therefore just there is shortcoming in this pen cap, this pen cap does not arrange and meets ergonomic structure simultaneously.Therefore,, for addressing the above problem, spy provides a kind of new technical scheme.
Utility model content
the purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of environmentally-friendly chalk holder is provided.
the utility model is to be achieved through the following technical solutions:
a kind of environmentally-friendly chalk holder, comprise the pen cap, chalk, push rod, described pen cap integral body is cylindrical structure, wherein a side is provided with thin-walled horn structure, the diameter of outside port is less than the diameter of internal port, opposite side outer surface is provided with indent arcwall face, the side inwall that the described pen cap is positioned at chalk outlet is provided with gripping sleeve, the cylindrical structure of described gripping sleeve outer surface, internal cavities is truncated cone-shaped structure, and the diameter that is positioned at chalk outlet one end is less than the diameter of the other end, and one end of described push rod is provided with elastic ball.
as preferably, described gripping sleeve outer surface is fixedly connected with pen cap inner surface.
as preferably, described gripping sleeve is that elastomeric material is made.
as preferably, described elastic ball is thin wall cavity structure, and inside is filled with gas.
compared with prior art, the beneficial effects of the utility model are: the utility model is simple in structure, reasonable in design, the utility model not only can well be applicable to outer surface and be the little conventional chalk in the large one end of hexagon and one end, more meets ergonomics simultaneously.
Accompanying drawing explanation
fig. 1 is structural representation of the present utility model.
in figure: 1. the pen cap; 2. chalk; 3. gripping sleeve; 4. push rod; 5. elastic ball.
The specific embodiment
in order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
refer to Fig. 1, a kind of environmentally-friendly chalk holder, comprise the pen cap 1, chalk 2, push rod 4, the described pen cap 1 integral body is cylindrical structure, wherein a side is provided with thin-walled horn structure, the diameter of outside port is less than the diameter of internal port, opposite side outer surface is provided with indent arcwall face, this indent arcwall face can be good at meeting user's gesture, use more comfortable, the side inwall that the described pen cap 1 is positioned at chalk 2 outlets is provided with gripping sleeve 3, the cylindrical structure of described gripping sleeve 3 outer surface, internal cavities is truncated cone-shaped structure, and the diameter that is positioned at chalk 2 outlet one end is less than the diameter of the other end, described gripping sleeve 3 outer surfaces are fixedly connected with the pen cap 1 inner surface, described gripping sleeve 3 is made for elastomeric material, gripping sleeve 3 can be suitable for various difform chalks 2.One end of described push rod 4 is provided with elastic ball 5, and described elastic ball 5 is thin wall cavity structure, and inside is filled with gas, and when using, elastic ball 5 can withstand palm of the hand place, more facilitates comfortablely, meets ergonomics.
the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. an environmentally-friendly chalk holder, comprise the pen cap (1), chalk (2), push rod (4), it is characterized in that: the described pen cap (1) integral body is cylindrical structure, wherein a side is provided with thin-walled horn structure, the diameter of outside port is less than the diameter of internal port, opposite side outer surface is provided with indent arcwall face, the side inwall that the described pen cap (1) is positioned at chalk (2) outlet is provided with gripping sleeve (3), the cylindrical structure of described gripping sleeve (3) outer surface, internal cavities is truncated cone-shaped structure, and the diameter that is positioned at chalk (2) outlet one end is less than the diameter of the other end, one end of described push rod (4) is provided with elastic ball (5).
2. a kind of environmentally-friendly chalk holder according to claim 1, is characterized in that: described gripping sleeve (3) outer surface is fixedly connected with the pen cap (1) inner surface.
3. a kind of environmentally-friendly chalk holder according to claim 1 and 2, is characterized in that: described gripping sleeve (3) is made for elastomeric material.
4. a kind of environmentally-friendly chalk holder according to claim 1, is characterized in that: described elastic ball (5) is thin wall cavity structure, and inside is filled with gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266143.2U CN203864239U (en) | 2014-05-23 | 2014-05-23 | Environment-friendly chalk sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420266143.2U CN203864239U (en) | 2014-05-23 | 2014-05-23 | Environment-friendly chalk sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203864239U true CN203864239U (en) | 2014-10-08 |
Family
ID=51645221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420266143.2U Expired - Fee Related CN203864239U (en) | 2014-05-23 | 2014-05-23 | Environment-friendly chalk sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203864239U (en) |
-
2014
- 2014-05-23 CN CN201420266143.2U patent/CN203864239U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20170523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |