CN203126216U - Only-in-not-out lead filling structure for thick-lead propelling pencil - Google Patents
Only-in-not-out lead filling structure for thick-lead propelling pencil Download PDFInfo
- Publication number
- CN203126216U CN203126216U CN 201320134221 CN201320134221U CN203126216U CN 203126216 U CN203126216 U CN 203126216U CN 201320134221 CN201320134221 CN 201320134221 CN 201320134221 U CN201320134221 U CN 201320134221U CN 203126216 U CN203126216 U CN 203126216U
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- Prior art keywords
- lead
- pencil
- storage tube
- thick
- hole
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- 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 provides an only-in-not-out lead filling structure for a thick-lead propelling pencil. The only-in-not-out lead filling structure is characterized in that a bayonet is arranged at the upper end of a lift cap, two holes are formed in the lift cap, one is a big hole of which the diameter is the same as the external diameter of a lead storage tube, the other is a small hole of which the diameter is determined by the diameter of a pencil lead, the small hole is a through hole, the pencil lead can enter from the upper end of the through hole and enters the lead storage tube, and a triangular bayonet is arranged at the lower end of the small hole and can prevent pencil leads in the lead storage tube from getting out so as to achieve an only-in-not-out function. The only-in-not-out lead filling triangular bayonet of the thick-lead propelling pencil is characterized in that the lift cap is arranged at the rear end of the lead storage tube and the lift cap is sleeved with the rear part of the lead storage tube. The only-in-not-out lead filling structure for the thick-lead propelling pencil is simple and reasonable, is easy to produce and manufacture and low in cost, is convenient and fast, ensures that the pencil lead is free from sharpening and has low probability of fractures, and allows bidirectional pencil lead filling.
Description
Technical field
The utility model relates to the cored structure in thick propelling pencil cored field, particularly a kind of thick propelling pencil only import but no export in the design students' supplies.
Background technology
Its lead for retractable pencil of replaceable pencil of general use sub warhead lead for retractable pencil all is to pack into from the core storage tube rear end, join a cap for brush or rubber, to stop the lead for retractable pencil unrestrainedness, or do an Elastic buckle in lead for retractable pencil pipe rear end, join a cap for brush then, this method dress lead for retractable pencil is cumbersome, and in a single day the cap for brush or rubber come off, and influence attractive in appearance or use.
Summary of the invention
The purpose of this utility model is to overcome the purpose of above-mentioned existence, provides a kind of rational in infrastructure simple, manufactures easily, and cost is low, and is convenient and swift, and pen core is exempted to cut and be not easily broken, the cored structure of thick propelling pencil only import but no export that can two-way dress lead for retractable pencil.
The purpose of this utility model realizes as follows:
A kind of cored structure of thick propelling pencil only import but no export, it is characterized in that: in lifting the upper end of cap, be provided with bayonet socket, lifting has the macropore in two holes in the cap, big bore dia is identical with the external diameter of core storage tube, and another hole diameter is decided according to lead core diameter, aperture is through hole, lead for retractable pencil can be entered from the upper end of through hole, and enters core storage tube, is provided with the triangle bayonet socket in the aperture lower end, the triangle bayonet socket can stop the lead for retractable pencil in the core storage tube to return out, and the triangle bayonet socket plays the effect of only import but no export.
Further, the cored triangle bayonet socket of described thick propelling pencil only import but no export is characterized in that: be that the core storage tube rear end establishes one and lift cap, lift cap sleeve and core storage tube rear portion.
Compared with prior art the beneficial effects of the utility model are: rational in infrastructure simple, to manufacture easily, and cost is low, and is convenient and swift, and pen core is exempted to cut and is not easily broken, can two-way dress lead for retractable pencil.
Description of drawings
Fig. 1 is first structural representation of the present utility model.
Fig. 2 is about the A-A(of Fig. 1) cutaway view.
Fig. 3 is about the B-B(of Fig. 1) cutaway view.
Be labeled as among the figure: core storage tube 1; Lift cap 2; Positioning step 3; Triangle bayonet socket 4.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Embodiment: as Fig. 1, Fig. 2 and shown in Figure 3, a kind of cored structure of thick propelling pencil only import but no export, it is characterized in that: in the upper end of lifting cap (2), be provided with bayonet socket, lift cap (2) lining the macropore in two holes is arranged, big bore dia is identical with the external diameter of core storage tube (1), another hole diameter is decided according to lead core diameter, aperture is through hole, lead for retractable pencil can be entered from the upper end of through hole, and enter core storage tube (1), be provided with triangle bayonet socket (4) in the aperture lower end, triangle bayonet socket (4) can stop the lead for retractable pencil of core storage tube (1) lining to return out, and triangle bayonet socket (4) plays the effect of only import but no export.
Further, the cored triangle bayonet socket of described thick propelling pencil only import but no export is characterized in that: be that core storage tube (1) rear end establishes one and lift cap (2), lift cap (2) cover and core storage tube (1) rear portion.
Compared with prior art the beneficial effects of the utility model are: rational in infrastructure simple, to manufacture easily, and cost is low, and is convenient and swift, and pen core is exempted to cut and is not easily broken, can two-way dress lead for retractable pencil.
Above-described concrete enforcement only is preferred embodiment of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle; also can do some adjustment and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (2)
1. the cored structure of a thick propelling pencil only import but no export, it is characterized in that: in lifting the upper end of cap, be provided with bayonet socket, lifting has the macropore in two holes in the cap, big bore dia is identical with the external diameter of core storage tube, and another hole diameter is decided according to lead core diameter, aperture is through hole, lead for retractable pencil can be entered from the upper end of through hole, and enters core storage tube, is provided with the triangle bayonet socket in the aperture lower end, the triangle bayonet socket can stop the lead for retractable pencil in the core storage tube to return out, and the triangle bayonet socket plays the effect of only import but no export.
2. the cored structure of a kind of thick propelling pencil only import but no export according to claim 1 is characterized in that: establish one in the core storage tube rear end and lift cap, lifting cap is cover and core storage tube rear portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320134221 CN203126216U (en) | 2013-03-23 | 2013-03-23 | Only-in-not-out lead filling structure for thick-lead propelling pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320134221 CN203126216U (en) | 2013-03-23 | 2013-03-23 | Only-in-not-out lead filling structure for thick-lead propelling pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203126216U true CN203126216U (en) | 2013-08-14 |
Family
ID=48934232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320134221 Expired - Fee Related CN203126216U (en) | 2013-03-23 | 2013-03-23 | Only-in-not-out lead filling structure for thick-lead propelling pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203126216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129202A (en) * | 2014-08-07 | 2014-11-05 | 温州天骄笔业有限责任公司 | Lead replacing device of propelling pencil |
-
2013
- 2013-03-23 CN CN 201320134221 patent/CN203126216U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104129202A (en) * | 2014-08-07 | 2014-11-05 | 温州天骄笔业有限责任公司 | Lead replacing device of propelling pencil |
| CN104129202B (en) * | 2014-08-07 | 2016-04-20 | 温州天骄笔业有限责任公司 | A kind of lead for retractable pencil supplementary device of propelling pencil |
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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: 20130814 Termination date: 20160323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |