CN201544605U - Automatic eraser core discharging pencil sleeve - Google Patents
Automatic eraser core discharging pencil sleeve Download PDFInfo
- Publication number
- CN201544605U CN201544605U CN2009202297638U CN200920229763U CN201544605U CN 201544605 U CN201544605 U CN 201544605U CN 2009202297638 U CN2009202297638 U CN 2009202297638U CN 200920229763 U CN200920229763 U CN 200920229763U CN 201544605 U CN201544605 U CN 201544605U
- Authority
- CN
- China
- Prior art keywords
- pencil
- eraser core
- slip teeth
- sleeve
- core
- 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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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
Disclosed is an automatic eraser core discharging pencil sleeve, which is characterized in a column shape. The bottom end is provided with a cover cap (1) for covering the pencil, an erase core storage (2) is arranged above the cover cap (1) and a core outlet (4) is arranged at the outer end of the erase core storage (2); a pair of sliding gears (5) are arranged oppositely at two sides of one end of the erase core storage (2) close to the core outlet (4) radially, a pair of compressing rods (6) which are connected with the erase core storage (2) movably and separated from the sliding gears (5) are arranged at the outer side of the sliding gears (5), a spring (7) is arranged between the sliding gears (5) and the top wall of the core outlet (4) of the sleeve; the longitudinal cross section of the sliding gears (5) is in shape of trapezoid which is narrow at inner side and wide at outer side and the trapezoid inclined plane (8) faces the compressing rods (6); additionally, the inner side of the sliding gears (5) is provided with sharp teeth (9). The sleeve, which can be coated on the pencil to discharge the core automatically, is used conveniently and saves erase and has strong practicability.
Description
Technical field
The utility model relates to stationery, is a kind of Pencil sleeve that goes out eraser core automatically specifically.
Background technology
Manual picture worker or student do one's assignment and often will use pencil and rubber, yet be with the pencil of rubber now on the market, its rubber tip mostly is the top that is fixedly mounted on pencil stub, will bring two problems like this: if pencil has been used up earlier, so also Sheng Xia rubber tip often will be thrown away simultaneously; If rubber has been used up earlier, when needing to wipe rubber so, we must go for to other places in addition, and are very inconvenient.So we are sought after a kind of and the supporting movable rubber of pencil, long service life is not wasted not only and but also product that can automatic propelling.
Summary of the invention
The purpose of this utility model provides a kind of Pencil sleeve that goes out eraser core automatically.
The described Pencil sleeve that goes out eraser core automatically is characterized in that: this Pencil sleeve that goes out eraser core automatically is a cylindricality, and its bottom is provided with the cap bag of pencil encased head, and the top of cap bag is the eraser core storehouse, and the outer end in eraser core storehouse is the knockout hole; At the close knockout nose end in eraser core storehouse, its both sides radially relatively are provided with a pair of slip teeth, and the outside of slip teeth is provided with a pair of pressure ram that flexibly connects and separate with slip teeth with the eraser core storehouse, is provided with spring between the knockout nose end inner roof wall of slip teeth and sleeve; Described slip teeth longitudinal section is a narrow outer wide prismatoid in, and trapezoidal inclined-plane is to the outside to pressure ram, and the inboard of slip teeth also is provided with canine tooth in addition.
The utility model can be enclosed within on the pencil stub and use, and the energy automatic propelling, the rubber of saving again easy to use, and practicality is very strong.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is an A portion enlarged drawing among Fig. 1.
Among the figure: 1-cap bag, 2-eraser core storehouse, 3-eraser core, 4-knockout hole, 5-slip teeth, 6-pressure ram, 7-spring, the trapezoidal inclined-plane of 8-, 9-canine tooth, 10-barrier periphery.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further specified: the Pencil sleeve that described in Fig. 1, Fig. 2, goes out eraser core automatically, it is characterized in that: this Pencil sleeve that goes out eraser core automatically is a cylindricality, its bottom is provided with the cap bag 1 of pencil encased head, the top of cap bag 1 is eraser core storehouse 2, and the outer end in eraser core storehouse 2 is knockout hole 4; At the close knockout hole in eraser core storehouse 24 ends, its both sides radially relatively are provided with a pair of slip teeth 5, the outside of slip teeth 5 is provided with a pair of pressure ram 6 that flexibly connects and separate with slip teeth 5 with eraser core storehouse 2, is provided with spring 7 between the knockout hole 4 end inner roof walls of slip teeth 5 and sleeve; Described slip teeth 5 longitudinal sections are narrow outer wide prismatoid in, and trapezoidal inclined-plane 8 is to the outside to pressure ram 6, and the inboard of slip teeth 5 also is provided with canine tooth 9 in addition; Described pressure ram 6 passes barrel and stretches out outside the tube, and its inside is arranged with barrier periphery 10.
As shown in Fig. 1 and Fig. 2: before the use, we are inserted into eraser core 3 in the eraser core storehouse 2 by knockout hole 4 earlier, then cap bag 1 are enclosed within on the head of pencil, and we just can use normally like this.
If when being exposed at the outer eraser cores 3 in knockout hole 4 and running low, at this moment we just push pressure ram 6 simultaneously with two fingers, the inner of pressure ram 6 faces the top on the trapezoidal inclined-plane 8 of slip teeth 5, in extrusion process, two slip teeth 5 can relatively inwardly be moved, prop up the both sides of eraser core 3 up to the canine tooth 9 of slip teeth 5, and clamp.At this moment, slip teeth 5 can not inwardly be moved again, and pressure ram 6 is also when continuing the trapezoidal inclined-plane 8 of extruding, pressure ram 6 and trapezoidal inclined-plane 8 can produce outside pressure, impel slip teeth 5 to clip eraser core 3 and upwards move, eraser core 3 just outwards ejects from knockout hole 4 like this, and spring 7 is compressed simultaneously.
Move on the slip teeth 5, when pressure ram 6 propped up the lower end on trapezoidal inclined-plane 8, the frictional force between it disappeared, and slip teeth 5 moves and stops.
At this moment, we unclamp the finger of extruding pressure ram 6, spring 7 after being compressed is under the elastic force effect, slip teeth 5 is inwardly pushed up, trapezoidal inclined-plane 8 moves downward in the process pressure ram 6 outside jack-up, each parts returns to original state, and while eraser core 3 is subjected to the frictional force in eraser core storehouse 2 and keeps the position that it is extruded.
If feel to be exposed at the outer eraser core 3 in knockout hole 4 not enough the time, can repeatedly repeat top process, up to feel suitable till.
Be arranged in the barrier periphery 10 of pressure ram 6 and guarantee that pressure ram 6 by the process of jack-up, is not ejected outside the tube by integral body in eraser core storehouse 2.
Whole process is very easy to use.If pencil has been used up, we can take off Pencil sleeve of the present utility model and be enclosed within on the new pencil again, continue to use economical with materials.If eraser core 3 has been used up, insert new getting final product again.
Claims (1)
1. Pencil sleeve that goes out eraser core automatically, it is characterized in that: this Pencil sleeve that goes out eraser core automatically is a cylindricality, its bottom is provided with the cap bag (1) of pencil encased head, and the top of cap bag (1) is eraser core storehouse (2), and the outer end of eraser core storehouse (2) is knockout hole (4); At the close knockout hole (4) of eraser core storehouse (2) end, its both sides radially relatively are provided with a pair of slip teeth (5), the outside of slip teeth (5) is provided with a pair of pressure ram (6) that flexibly connects and separate with slip teeth (5) with eraser core storehouse (2), is provided with spring (7) between knockout hole (4) the end inner roof wall of slip teeth (5) and sleeve; Described slip teeth (5) longitudinal section is a narrow outer wide prismatoid in, and trapezoidal inclined-plane (8) to the outside to pressure ram (6), the inboard of slip teeth (5) also is provided with canine tooth (9) in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202297638U CN201544605U (en) | 2009-11-12 | 2009-11-12 | Automatic eraser core discharging pencil sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202297638U CN201544605U (en) | 2009-11-12 | 2009-11-12 | Automatic eraser core discharging pencil sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201544605U true CN201544605U (en) | 2010-08-11 |
Family
ID=42599766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202297638U Expired - Fee Related CN201544605U (en) | 2009-11-12 | 2009-11-12 | Automatic eraser core discharging pencil sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201544605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700314A (en) * | 2012-06-25 | 2012-10-03 | 丘志敏 | Pencil with telescopic eraser head structure |
-
2009
- 2009-11-12 CN CN2009202297638U patent/CN201544605U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700314A (en) * | 2012-06-25 | 2012-10-03 | 丘志敏 | Pencil with telescopic eraser head structure |
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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: 20100811 Termination date: 20101112 |