CN206589500U - A kind of needle tubing pen core - Google Patents
A kind of needle tubing pen core Download PDFInfo
- Publication number
- CN206589500U CN206589500U CN201720114395.7U CN201720114395U CN206589500U CN 206589500 U CN206589500 U CN 206589500U CN 201720114395 U CN201720114395 U CN 201720114395U CN 206589500 U CN206589500 U CN 206589500U
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- CN
- China
- Prior art keywords
- pen core
- core tube
- steel ball
- endoporus
- tube
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Abstract
The utility model discloses a kind of needle tubing pen core, including pen core tube and pen core head, pen core head is internally provided with pen core head endoporus, the leading inside of pen core head endoporus slopes inwardly to form tapering point, 10 ° of ＜ α ＜ of its cone angle 0, inwardly protruded six bearings are formed with one cross section of pen core head endoporus, six bearing annulars are distributed on the cross section, the height of projection c of each bearing is 0.15~0.20 micron, pen core head endoporus is provided with steel ball, steel ball is arranged between bearing and tapering point, the side towards tapering point of bearing, the medial surface of tapering point coordinates with the surface gap of steel ball, the center of steel ball to the distance of tapering point is a, the distance on the center of steel ball to the top of the side towards tapering point of bearing is b, the radius of steel ball is r, wherein, a≤1/2r, b >=2/3r.The needle tubing pen core, can effectively reduce the gap between steel ball and pen core head, reduce the discharge of ink, so that the problem of solving product ink.
Description
Technical field
The utility model is related to novel office table separation, more particularly to a kind of needle tubing pen core.
Background technology
Pen core is widely used in daily life, study, office, general pen core includes pen as a kind of writing implement
Core pipe and pen core head, pen core tube and pen core head are connected through a screw thread, and the liquid of writing are housed, pen core head is equipped with pen core tube
Steel ball, in writing, the liquid in pen core tube is slowly flowed out by the steel ball of pen core head front end, with the purpose of the writing reached.
However, in existing pen core head, the bearing for steel ball is usually provided with three or four, in actual use process
In, due to bearing very little, cause the gap between steel ball and pen core head excessive, thus ink discharge is big, it is easy in writing
There is the situation of product ink；And with the number of times increase used, product ink can be more and more, influence the aesthetic measure of writing, simultaneously
Ink is wasted, the life-span of pen core is reduced.
Utility model content
The purpose of this utility model is to propose a kind of needle tubing pen core, can effectively reduce the seam between steel ball and pen core head
Gap, reduces the discharge of ink, so that the problem of solving product ink.
For up to this purpose, the utility model uses following technical scheme：
A kind of needle tubing pen core, including pen core tube and be arranged at the pen core head of the pen core tube front end, the pen core head it is interior
Portion is provided with the pen core head endoporus flowed for liquid,
The leading inside of the pen core head endoporus slopes inwardly to form tapering point, 10 ° of ＜ α ＜ of its cone angle 0,
It is stamped and formed out on one cross section of the close front end of the pen core head endoporus by taper thimble ecto-entad oriented
Six bearings of internal projection, six bearing annulars are distributed on the cross section, and the height of projection c of each bearing is
0.15~0.20 micron,
The pen core head endoporus is provided with steel ball, and the steel ball is arranged between the bearing and the tapering point, described
The side of the direction tapering point of bearing, the medial surface of the tapering point coordinate with the surface gap of the steel ball, described
The center of steel ball to the distance of the tapering point is a, the side of the direction tapering point at the center of the steel ball to the bearing
The distance on the top in face is b, and the radius of the steel ball is r, wherein, a≤1/2r, b >=2/3r.
Wherein, the pen core tube include separate the first pen core tube and the second pen core tube, first pen core tube and
It is detachably connected between second pen core tube by intermediate connecting ring.
Wherein, the inside of first pen core tube, which is provided with, is used for the first pen core tube endoporus that liquid flows, described the first stroke
The external diameter of the internal diameter of core pipe endoporus and the pen core head is adapted, and the pen core head is inserted matches somebody with somebody in the first pen core tube endoporus
Close, so that the first pen core tube endoporus is connected with the pen core head endoporus.
Wherein, the inside of second pen core tube is provided with the second pen core pipe orifice for being used for storing liquid, described second
Core pipe endoporus is connected with the first pen core tube endoporus.
Wherein, tight fit connection is passed through between first pen core tube and the intermediate connecting ring.
Wherein, it is connected through a screw thread between second pen core tube and the intermediate connecting ring.
Wherein, the inside of the intermediate connecting ring offers stepped hole, and the stepped hole includes small diameter bore and major diameter
Hole, first pen core tube inserts the small diameter bore tight fit；
Internal thread is provided with the large diameter hole, the front end periphery of second pen core tube is provided with external screw thread, described second
Pen core tube is inserted to be coordinated in the large diameter hole by screw thread.
Wherein, the front end of second pen core tube is integrally formed with auxiliary pen core tube, and the external diameter of the auxiliary pen core tube is small
In the external diameter of second pen core tube, the junction of second pen core tube and the auxiliary pen core tube forms step；
The internal diameter of external diameter and first pen core tube of the auxiliary pen core tube is adapted, and the auxiliary pen core tube is outer
It is provided with week on the inside of external screw thread, first pen core tube and is provided with internal thread, the auxiliary pen core tube inserts described the first stroke
The inside of core pipe is simultaneously connected through a screw thread, and end and the step of first pen core tube offset.
Wherein, the front end of the auxiliary pen core tube is stretched out the intermediate connecting ring and set, described to aid in pen core tube and described
First pen core tube is transparent material.
The beneficial effects of the utility model are：
Needle tubing pen core of the present utility model, including pen core tube and be arranged at the pen core head of pen core tube front end, pen core head it is interior
Portion is provided with the pen core head endoporus flowed for liquid, and the leading inside of pen core head endoporus slopes inwardly to form tapering point, and it is bored
It is stamped and formed out on 10 ° of the ＜ α ＜ in angle 0, a cross section of the close front end of pen core head endoporus by taper thimble ecto-entad oriented
Six bearings of internal projection, six bearing annulars are distributed on the cross section, and the height of projection c of each bearing is 0.15~0.20
Micron, pen core head endoporus is provided with steel ball, and steel ball is arranged between bearing and tapering point, bearing towards the side of tapering point,
The medial surface of tapering point coordinates with the surface gap of steel ball, and center to the distance of tapering point of steel ball is a, and the center of steel ball is extremely
The distance on the top of the side towards tapering point of bearing is b, and the radius of steel ball is r, wherein, a≤1/2r, b >=2/3r；It leads to
Cross and steel ball is arranged between tapering point and bearing, so that using the taper and the backstop action of bearing of tapering point, steel ball be consolidated
It is fixed, thus steel ball is difficult abjection in writing；In addition, six bearing annulars are uniformly distributed, bearing and steel ball are greatly increased
Between cooperation area, effectively reduce the area of the non-fitting part between steel ball inside pen core head, thus reduce steel ball with
Gap between pen core head, finally reduces the discharge of the ink through being flowed through between bearing, the problem of solving product ink.
Brief description of the drawings
Fig. 1 is the structural representation for the needle tubing pen core that the utility model embodiment is provided；
Fig. 2 is the decomposition texture schematic diagram for the needle tubing pen core that the utility model embodiment is provided；
Fig. 3 is the structural representation for the pen core head that the utility model embodiment is provided；
Fig. 4 is the structural representation of the cross section for the pen core head that the utility model embodiment is provided.
In figure：1- pen core heads；2- steel balls；The pen core tubes of 3- first；The pen core tubes of 4- second；5- intermediate connecting rings；
11- pen core head endoporus；12- cone tanks；13- bearings；
41- aids in pen core tube.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
As shown in Figures 1 to 4, a kind of needle tubing pen core, including pen core tube and the pen core head 1 for being arranged at pen core tube front end, pen core
The first 1 pen core head endoporus 11 being internally provided with for liquid flowing, the leading inside of pen core head endoporus 11 slopes inwardly to be formed
Tapering point, 10 ° of ＜ α ＜ of its cone angle 0, it is preferred that in the present embodiment, α=8 °.
It has been stamped and formed out inwardly by taper thimble ecto-entad on one cross section of the close front end of pen core head endoporus 11
Six raised bearings 13, six annulars of bearing 13 are distributed on the cross section, the height of projection c of each bearing 13 for 0.15~
0.20 micron, it is preferred that in the present embodiment, c=0.18 microns.
Pen core head endoporus 11 is provided with steel ball 2, and steel ball 2 is arranged between bearing 13 and tapering point, the direction cone of bearing 13
The side at shape end, the medial surface of tapering point coordinate with the surface gap of steel ball 2, and center to the distance of tapering point of steel ball 2 is
A, the distance on the top of center to the side towards tapering point of bearing 13 of steel ball 2 is b, and the radius of steel ball 2 is r, wherein, a
≤ 1/2r, b >=2/3r.
The needle tubing pen core by the way that steel ball 2 is arranged between tapering point and bearing 13 so that using tapering point taper and
The backstop action of bearing 13, steel ball 2 is fixed, thus steel ball 2 is difficult abjection in writing；And using a≤1/2r, b >=2/3r,
Can be on the premise of steel ball flexible rotating be ensured, it is ensured that the multi-angle operability of writing.
In addition, six annulars of bearing 13 are uniformly distributed, the cooperation area between bearing 13 and steel ball 2 is greatly increased,
The area of non-fitting part between 11 and steel ball 2 inside pen core head is effectively reduced, so as to reduce between steel ball 2 and pen core head 1
Gap, finally reduce the discharge of the ink through being flowed through between bearing, solve product ink the problem of.
Further, when bearing 13 is headed into from outside to inside by taper thimble, in the periphery of pen core head, by taper top aciculiform
Into cone tank 12, the cone angle of cone tank 12 is β, wherein, 5 ° of 20 ° of ＜ β ＜.The cone angle of the bearing 13 formed in this way
For γ, γ=β.
In the present embodiment, pen core tube includes separate the first pen core tube 3 and the second pen core tube 4, the first pen core tube 3
And second be detachably connected by intermediate connecting ring 5 between pen core tube 4.In use, when the ink in the second pen core tube 4
After being finished, the second pen core tube, the second pen core tube more renewed so that the first pen core tube 3 and pen core can be removed by dismounting
Head is reused, greatly the use cost of reduction needle tubing pen core.
Specifically, the inside of the first pen core tube 3, which is provided with, is used for the first pen core tube endoporus that liquid flows, in the first pen core tube
The internal diameter in hole is adapted with the external diameter of pen core head 1, and pen core head 1, which is inserted in the first pen core tube endoporus, to be coordinated, so that the first pen core tube
Endoporus is connected with pen core head endoporus 11；The inside of second pen core tube 4 is provided with the second pen core pipe orifice for being used for storing liquid, second
Pen core pipe orifice is connected with the first pen core tube endoporus.
It is preferred that, by tight fit connection between the first pen core tube 3 and intermediate connecting ring 5, the second pen core tube 4 connects with centre
Connect and be connected through a screw thread between ring 5.
It is further preferred that the inside of intermediate connecting ring 5 offers stepped hole, stepped hole includes small diameter bore and major diameter
Internal thread is provided with hole, the first pen core tube 3 insertion small diameter bore tight fit, large diameter hole, the front end periphery of the second pen core tube 4 is set
Have in external screw thread, the second pen core tube 4 insertion large diameter hole and coordinated by screw thread.
Still more preferably, the front end of the second pen core tube 4 aids in pen core tube 41 integrally formed with auxiliary pen core tube 41
External diameter is less than the external diameter of the second pen core tube 4, and the junction of the second pen core tube 4 and auxiliary pen core tube 41 forms step；Aid in pen core
The internal diameter of the external diameter of pipe 41 and the first pen core tube 3 is adapted, and the periphery of auxiliary pen core tube 41 is provided with external screw thread, the first pen core
The inner side of pipe 3 is provided with internal thread, and auxiliary pen core tube 41 inserts the inside of the first pen core tube 3 and is connected through a screw thread, the first stroke
The end of core pipe 3 offsets with step.
In the present embodiment, the front end of auxiliary pen core tube 41 is stretched out intermediate connecting ring 5 and set, and aids in pen core tube 41 and first
Pen core tube 3 is transparent material.Thus when ink liquid level drops to auxiliary pen core tube 41 and the first pen core tube 3, it can see in time
Examine, be easy to change the second pen core tube in advance.
The front end of auxiliary pen core tube is provided with dismountable plug, and the second pen core tube is internally provided with oil sealing, therefore,
When changing, plug is taken out, then the second pen core tube is installed in intermediate connecting ring.
In summary, needle tubing pen core of the present utility model, its is simple in construction, is difficult product ink, and pen core head can be repeated
Repeatedly utilize, reduce cost.
Technical principle of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality
With new principle, and the limitation to the utility model protection domain can not be construed in any way.Based on explanation herein,
Those skilled in the art, which would not require any inventive effort, can associate other embodiments of the present utility model,
These modes are fallen within protection domain of the present utility model.
Claims (9)
1. a kind of needle tubing pen core, it is characterised in that including pen core tube and the pen core head for being arranged at the pen core tube front end, the pen
The pen core head endoporus being internally provided with for liquid flowing of core print,
The leading inside of the pen core head endoporus slopes inwardly to form tapering point, 10 ° of ＜ α ＜ of its cone angle 0,
Oriented convex is stamped and formed out by taper thimble ecto-entad on one cross section of the close front end of the pen core head endoporus
Six bearings risen, six bearing annulars are distributed on the cross section, the height of projection c of each bearing for 0.15~
0.20 micron,
The pen core head endoporus is provided with steel ball, and the steel ball is arranged between the bearing and the tapering point, the bearing
Surface gap with the steel ball of the side of the direction tapering point, the medial surface of the tapering point coordinate, the steel ball
Center to the distance of the tapering point be a, the side of the direction tapering point at the center of the steel ball to the bearing
The distance on top is b, and the radius of the steel ball is r, wherein, a≤1/2r, b >=2/3r.
2. needle tubing pen core according to claim 1, it is characterised in that the pen core tube includes the first separate pen core
Pipe and the second pen core tube, are detachably connected between first pen core tube and second pen core tube by intermediate connecting ring.
3. needle tubing pen core according to claim 2, it is characterised in that the inside of first pen core tube, which is provided with, is used for liquid
First pen core tube endoporus of flowing, the internal diameter of the first pen core tube endoporus is adapted with the external diameter of the pen core head, the pen
Core print, which is inserted in the first pen core tube endoporus, to be coordinated, so that the first pen core tube endoporus is connected with the pen core head endoporus.
4. needle tubing pen core according to claim 3, it is characterised in that the inside of second pen core tube, which is provided with, to be used to store
Second pen core pipe orifice of liquid, the second pen core pipe orifice is connected with the first pen core tube endoporus.
5. the needle tubing pen core according to any one of claim 2 to 4, it is characterised in that first pen core tube with it is described in
Between pass through tight fit connection between connection ring.
6. needle tubing pen core according to claim 5, it is characterised in that second pen core tube and the intermediate connecting ring it
Between be connected through a screw thread.
7. needle tubing pen core according to claim 6, it is characterised in that the inside of the intermediate connecting ring offers step
Hole, the stepped hole includes small diameter bore and large diameter hole, and first pen core tube inserts the small diameter bore tight fit；
Internal thread is provided with the large diameter hole, the front end periphery of second pen core tube is provided with external screw thread, second pen core
Pipe is inserted to be coordinated in the large diameter hole by screw thread.
8. needle tubing pen core according to claim 7, it is characterised in that the front end of second pen core tube is integrally formed with auxiliary
Help pen core tube, the external diameter of the auxiliary pen core tube is less than the external diameter of second pen core tube, second pen core tube with it is described auxiliary
The junction of pen core tube is helped to form step；
The internal diameter of the external diameter and first pen core tube of the auxiliary pen core tube is adapted, and the periphery of the auxiliary pen core tube is set
It is equipped with the inside of external screw thread, first pen core tube and is provided with internal thread, the auxiliary pen core tube inserts first pen core tube
Inside and be connected through a screw thread, end and the step of first pen core tube offset.
9. needle tubing pen core according to claim 8, it is characterised in that the centre is stretched out in the front end of the auxiliary pen core tube
Connection ring is set, and the auxiliary pen core tube and first pen core tube are transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720114395.7U CN206589500U (en) | 2017-02-07 | 2017-02-07 | A kind of needle tubing pen core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720114395.7U CN206589500U (en) | 2017-02-07 | 2017-02-07 | A kind of needle tubing pen core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206589500U true CN206589500U (en) | 2017-10-27 |
Family
ID=60127882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720114395.7U Expired - Fee Related CN206589500U (en) | 2017-02-07 | 2017-02-07 | A kind of needle tubing pen core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206589500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106585171A (en) * | 2017-02-07 | 2017-04-26 | 昆山恒义亚自动化设备有限公司 | Needle tubing refill |
-
2017
- 2017-02-07 CN CN201720114395.7U patent/CN206589500U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106585171A (en) * | 2017-02-07 | 2017-04-26 | 昆山恒义亚自动化设备有限公司 | Needle tubing refill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171027 Termination date: 20200207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |