CN201659782U - Lead replaceable pencil with bullet pencil lead - Google Patents
Lead replaceable pencil with bullet pencil lead Download PDFInfo
- Publication number
- CN201659782U CN201659782U CN2010201397453U CN201020139745U CN201659782U CN 201659782 U CN201659782 U CN 201659782U CN 2010201397453 U CN2010201397453 U CN 2010201397453U CN 201020139745 U CN201020139745 U CN 201020139745U CN 201659782 U CN201659782 U CN 201659782U
- Authority
- CN
- China
- Prior art keywords
- pencil
- lead
- chuck
- storage tube
- core storage
- 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
The utility model discloses a lead replaceable pencil with bullet pencil lead; the front end of a lead tube is provided with a chuck; both sides of the chuck are provided with slots; the chuck is provided with a boss; a spring is sleeved outside the lead tube; the pencil lead in a bullet shape is arranged in the lead tube; the pencil lead in the bullet shape opens the chuck on the front end of the lead tube; the expanding part of the chuck is bigger than the inner diameter of the end of a pen holder so that the lead tube is not pulled into the pen holder by the spring or external force; but when the front end of the lead tube does not clamp the bullet pencil lead, the boss on the chuck and the front end of the pen holder form a bayonet; and the lead tube cannot be pulled out from the pen holder, and the pencil is not easy to be broken up at this time.
Description
Affiliated technical field
The utility model relates to a kind of writing implement, especially the replaceable pencil of bullet pencil.
Background technology
The Thick-head pencil that uses is still based on Wood-bar pencil at present, Wood-bar pencil consumes timber, there is cutting tired, therefore the invention of sub warhead replaceable pencil is arranged, in penholder, establish core storage tube, the core storage tube front end is established chuck, isometric slot type elongated slot and short groove are established in the chuck both sides, core storage tube overcoat band tongue spring or tack spring, chuck can freely stretch out the penholder termination, the pencil-lead that is processed into bullet shape is packed in the core storage tube, and the pencil-lead of bullet shape struts core storage tube front end chuck, greater than penholder termination internal diameter, core storage tube is unlikely to be drawn in the penholder by spring or external force and make, but when the pencil-lead of not clamping of core storage tube front end bullet shape, core storage tube is easy to be pulled out from penholder, and this moment, pen was broken.
Summary of the invention
The purpose of this utility model is that the replaceable pencil core storage tube that solves bullet pencil is easily pulled out from penholder, the problem that pen is very easily broken makes its performance intact.
The purpose of this utility model is achieved in that establishes core storage tube in penholder, the core storage tube front end is established chuck, isometric groove or elongated slot and short groove are established in the chuck both sides, on chuck, establish boss, core storage tube overcoat band tongue spring or tack spring, the pencil-lead of bullet shape is packed in the core storage tube, the pencil-lead of bullet shape struts core storage tube front end chuck, chuck expands the place greater than penholder termination internal diameter, core storage tube is unlikely to be drawn in the penholder by spring force or external force and make, but when the pencil-lead of not clamping of core storage tube front end bullet shape, set boss and penholder front end form bayonet socket on the chuck, core storage tube can not be pulled out from penholder, and this moment, pen was difficult for being broken.
The beneficial effects of the utility model are to form bayonet socket by establishing boss and penholder front end on the chuck, solve that the replaceable pencil of bullet pencil easily disassembled problem, prolonged its service life.
Description of drawings
Fig. 1 is the structural representation of core storage tube front portion of the replaceable pencil of bullet pencil.
Fig. 2 is the structural representation that core storage tube front end chuck boss and penholder front end form bayonet socket.
Specific implementation method
With reference to accompanying drawing 1,2, in penholder (8), establish core storage tube (7), core storage tube (7) front end is established chuck (2), groove (4) is established in chuck (2) both sides, groove (4) can be isometric or not isometric, on chuck (2), establish boss (3), core storage tube (7) outer casing spring (5), spring (5) can be with tongue or be tack, the pencil-lead of bullet shape (1) is packed in the core storage tube (7), the pencil-lead of bullet shape (1) struts core storage tube (7) front end chuck (2), chuck (2) expands the place greater than penholder (8) termination internal diameter, core storage tube (7) is unlikely to be drawn in the penholder (8) by spring (5) power or external force and make, but when the pencil-lead (1) of core storage tube (7) not clamping of front end bullet shape, chuck (2) is gone up set boss (3) and is formed bayonet socket (6) with penholder (8) front end, and core storage tube (7) can not be pulled out from penholder (8), and this moment, pen was difficult for being broken.
Claims (5)
1. the replaceable pencil of a bullet pencil, the core storage tube front end is established chuck, and groove is established in the chuck both sides, the core storage tube outer casing spring, the pencil-lead of bullet shape is packed in the core storage tube, it is characterized in that establishing boss on the core storage tube chuck, the projection of chuck front end and penholder front end form bayonet socket.
2. the replaceable pencil of bullet pencil according to claim 1 is characterized in that the groove of core storage tube chuck both sides is respectively elongated slot and short groove.
3. the replaceable pencil of bullet pencil according to claim 1 is characterized in that the groove of core storage tube chuck both sides is isometric.
4. the replaceable pencil of bullet pencil according to claim 1 is characterized in that the spring band tongue of core storage tube overcoat.
5. the replaceable pencil of bullet pencil according to claim 1, the spring that it is characterized in that the core storage tube overcoat is the tack spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201397453U CN201659782U (en) | 2010-02-25 | 2010-02-25 | Lead replaceable pencil with bullet pencil lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201397453U CN201659782U (en) | 2010-02-25 | 2010-02-25 | Lead replaceable pencil with bullet pencil lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201659782U true CN201659782U (en) | 2010-12-01 |
Family
ID=43230196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201397453U Expired - Fee Related CN201659782U (en) | 2010-02-25 | 2010-02-25 | Lead replaceable pencil with bullet pencil lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201659782U (en) |
-
2010
- 2010-02-25 CN CN2010201397453U patent/CN201659782U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20160225 |