CN2564351Y - Dual-purpose chalk sheathing - Google Patents
Dual-purpose chalk sheathing Download PDFInfo
- Publication number
- CN2564351Y CN2564351Y CN 02228689 CN02228689U CN2564351Y CN 2564351 Y CN2564351 Y CN 2564351Y CN 02228689 CN02228689 CN 02228689 CN 02228689 U CN02228689 U CN 02228689U CN 2564351 Y CN2564351 Y CN 2564351Y
- Authority
- CN
- China
- Prior art keywords
- chalk
- base
- sleeve
- ball pen
- chalk 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
Links
Abstract
The utility model discloses a dual purpose chalk sleeve that can protect hands and improve the utilization rate of chalk and can be used as a ball pen. A piston-shaped base which can slide along a geared rail up and down is arranged in a plastic or metal casing; the regulation of the position of a hand-setting button can cause the chalk on the base to move up and down in the sleeve; therefore, people can write without contacting the chalk in the chalk sleeve; the ball pen is arranged at the other end of the chalk sleeve, and the dual purpose is realized.
Description
The utility model relates to a kind of stationery that is used to impart knowledge to students, and is to avoid hand directly to contact with chalk the dual-purpose chalk sleeve that improves the chalk utilization rate and can be used as ball pen.
The main component of chalk is quick lime (CaO) and gypsum (CaSO
42H
2O).The sweat that quick lime Long contact time skin oozes out can generate weak base Ca (OH)
2Corrosion skin.Therefore, use the people of chalk for a long time, hand nearly all can suffer injury in various degree.In addition, in order to write conveniently, many people have used half to chalk or 2/3rds have just thrown away, and have caused waste like this, also are unfavorable for environmental sanitation.
In order to overcome existing chalk injury hand and the not high shortcoming of utilization rate, the utility model provides a kind of dual-purpose chalk sleeve, and this chalk sleeve can not only be protected people's hand, improves the chalk utilization rate, helps environmental sanitation, uses but also can be used as ball pen.
The technical scheme that its technical problem that solves the utility model adopts is: chalk is positioned in the pipe cover, has a base movable up and down to be used for fixing chalk in the cover, and cover liner one circle rubber, its effect is the frictional force that increases chalk and cover.Along with chalk is used shorter and shorter, the button handsetting position of regulating on the plastic sheath just can make chalk up and down in cover.Staff is held chalk sleeve, just can avoid skin directly to contact with chalk, reaches protection people's the hand and the purpose of raising chalk utilization rate.Set up ball pen at the plastic sheath other end, reach dual-purpose purpose.When needs with the time, can be with the inverted use of chalk sleeve.Ball pen cap and chalk sleeve are separate, and be separable also capable of being combined.And chalk sleeve base lid can be opened downwards, when renewing chalk, Ball pen cap need only be taken off from chalk sleeve, opens base and just can take out the chalk head, changes new, very convenient.
The beneficial effects of the utility model are can not only protect hand but also can effectively utilize the chalk head, and apparatus structure to be simple, cheap, practicality is easy to use.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
1. chalks among the figure, 2. elastic caoutchouc, 3. dead slot, 4. tooth, 5. plastics system shell, 6. piston-like base, 7. button handsetting, 8. ball pen, 9. base, 10. ball pen container, 11. ball caps.
The specific embodiment
In the accompanying drawings, on the piston-like base (6) in chalk (1) insertion column type plastics or the metallic casing (5).Plastics or metallic casing (5) and piston-like base (6) upper end flexible rubber (2), hard-pressed bale chalk (1).Button handsetting (7) is attached on the piston-like base (6), can control it and slide up and down at the dead slot that tooth (4) are arranged (3).Regulate button handsetting to correct position, just can use.Chalk is with short one section, just toward upper toggle, till chalk runs low.Piston-like base (5) but the bottom switch, the chalk head that uses up is pourable.Base (9) is threaded with ball pen container (10), in adorn red blue dichromatism refill for ball-point pen (10), rotatable shell converting colors.In order to protect ball-point pen tip, can be at a ball cap of overcoat (11)
When needs with the time, ball pen subsidiary above the inverted use of chalk sleeve can be killed two birds with one stone.
Claims (3)
1. a dual-purpose chalk sleeve is equipped with chalk sleeve and Ball pen cap in plastics or metal shell.It is characterized in that: chalk and ball pen are contained in respectively in the cover, and Ball pen cap and chalk sleeve are separate, are linked in sequence by screw thread.
2. chalk sleeve according to claim 1 is characterized in that: chalk sleeve liner rubber, have a piston-like base slidably up and down, and the track that slides for base has tooth.
3. chalk sleeve according to claim 1 is characterized in that: button handsetting is attached on the piston-like base, and the bottom of piston-like base can be opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228689 CN2564351Y (en) | 2002-03-18 | 2002-03-18 | Dual-purpose chalk sheathing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02228689 CN2564351Y (en) | 2002-03-18 | 2002-03-18 | Dual-purpose chalk sheathing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2564351Y true CN2564351Y (en) | 2003-08-06 |
Family
ID=33705174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02228689 Expired - Fee Related CN2564351Y (en) | 2002-03-18 | 2002-03-18 | Dual-purpose chalk sheathing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2564351Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275962A (en) * | 2013-07-08 | 2015-01-14 | 王伟玉 | Ink pressing device of gel ink pen (ink pen) |
-
2002
- 2002-03-18 CN CN 02228689 patent/CN2564351Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104275962A (en) * | 2013-07-08 | 2015-01-14 | 王伟玉 | Ink pressing device of gel ink pen (ink pen) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |