Writing-resistant double-bead spring gel pen point
The internal mechanism of the pen tip, with its detachable structural design, solves the problem of the precision spring detaching from the ball bearing, enabling convenient pen tip adjustment and stable writing performance, thus improving the user experience of the ballpoint pen.
Patent Information
- Application Number
- CN202520184353.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Existing durable writing double-ball spring gel pen tips may experience the precision spring detaching from the ball under prolonged use or stress, resulting in uneven writing and poor ink leakage prevention. Furthermore, the fixed structure makes adjustment difficult.
The pen tip features a detachable design and includes a limiting groove, a guide groove, a fitting plate, and a spring. By rotating the fitting sleeve and the fitting plate, the position of the spring can be adjusted to refit the precision spring with the ball.
It facilitates adjustment after the precision spring and ball bearing separate, improving writing smoothness and ink leakage prevention, and also makes it easy to assemble and disassemble the pen tip and pen barrel.
Smart Images
Figure CN223735730U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to neutral pen head technical field, concretely is writing resistant double bead spring neutral pen head. BACKGROUND
[0002] Writing resistant double bead spring neutral pen head is an advanced neutral pen head design, adopts double bead design, that is, adopts two ball beads, usually is made of tungsten carbide alloy and the like wear -resisting material, ball beads are mutually abutted, can better control the outflow of ink, ensure the fluency and stability of writing, in addition, is equipped with precision spring, generally adopts high -quality stainless steel and the like material and is made, has good elasticity and durability.
[0003] The existing writing resistant double bead spring neutral pen head still has the following problems when using: the cooperation precision between double beads and precision spring is high, when long -term writing or being impacted by great external force, precision spring can be separated from ball bead, the smoothness of writing and the anti -leakage effect are affected, since the internal structure of the existing pen head is fixed structure design, it is not conducive to the adjustment after the separation of precision spring from ball bead. UTILITY MODEL CONTENT
[0004] (I) technical problem solved
[0005] In view of the deficiencies of the prior art, the utility model provides writing resistant double bead spring neutral pen head, and solves the problems in the background art.
[0006] (II) technical scheme
[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: writing resistant double bead spring neutral pen head, including pen head main part, the pen head main part is provided with pen head internal mechanism, the pen head main part includes a pen head shell, the pen head shell top center position is equipped with the limiting slot, the limiting slot inner bottom wall center position is equipped with the flow guide groove, the limiting slot inner side wall upper middle part is fixedly connected with the limiting block, the pen head internal mechanism includes two ball beads that are rotatably assembled in the flow guide groove lower opening, the pen head internal mechanism still includes the embedded sheet that is slidably connected to the limiting slot inner bottom wall, the embedded sheet inner bottom wall center position is fixedly connected with the spring, the spring bottom end is in contact with the upper ball bead, the embedded sheet top end periphery is fixedly connected with the matching sleeve, the matching sleeve top end is slidably connected with the limiting block, the matching sleeve and the embedded sheet one end upper and lower two side walls are equipped with the matching limiting block cooperation groove.
[0008] As a further scheme of the utility model: two ball beads are arranged in upper and lower abutting relation, and the diameter of the upper ball bead is larger than that of the lower ball bead, two ball groove slots for ball bead rolling assembly are arranged from top to bottom on the inner side wall of the flow guide groove below, a plurality of flow guide holes are arranged in equal angle between the upper and lower side walls of the embedded sheet, and the plurality of flow guide holes are located in the inner side of the matching sleeve and outside the spring.
[0009] As a further scheme of the utility model: a threaded groove is arranged on the upper side of the annular outer wall of the pen head shell, a limiting ring is arranged in the upper side of the annular outer wall of the pen head shell, and the limiting ring is located below the threaded groove.
[0010] As a further scheme of the utility model: a plurality of grooves are arranged in equal angle on the lower conical surface of the pen head shell.
[0011] Compared with the prior art, the utility model has the advantages that:
[0012] 1、 the utility model discloses a pen head, which comprises a pen head main body, a spring, a ball bead, a matching sleeve, an embedded sheet and a limiting block.
[0013] 2、 the utility model discloses a pen head, which comprises a pen head main body, a spring, a ball bead, a matching sleeve, an embedded sheet and a limiting block. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the overall three-dimensional structure of the utility model Figure 1 ;
[0015] Figure 2 It is the overall three-dimensional structure of the utility model Figure 2 ;
[0016] Figure 3 It is the overall sectional three-dimensional structure of the utility model Figure 1 ;
[0017] Figure 4 It is the overall sectional three-dimensional structure of the utility model Figure 2 .
[0018] In the figure: 1, pen head main body; 2, pen head internal mechanism; 11, pen head shell; 12, limiting ring; 13, threaded groove; 14, limiting block; 15, limiting groove; 16, flow guide groove; 17, ball groove; 18, recess; 21, embedded piece; 22, fitting sleeve; 23, fitting groove; 24, spring; 25, ball; 26, flow guide hole. DETAILED DESCRIPTION
[0019] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0020] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the device or element indicated or implied to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0021] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0022] Please refer to Figures 1-4The utility model discloses a writing resistant double -ball spring neutral pen head, including pen head main body 1, be provided with pen head internal mechanism 2 in pen head main body 1, and pen head main body 1 includes a pen head shell 11, and the top center position of pen head shell 11 is equipped with the limiting groove 15, and the bottom wall center position of limiting groove 15 is equipped with the flow groove 16, and the upper middle part of the inner side wall of limiting groove 15 is fixedly connected with the limiting block 14, and pen head internal mechanism 2 includes two ball 25 that roll and assemble in the lower opening of flow groove 16, and pen head internal mechanism 2 also includes the embedded sheet 21 that is connected in the bottom wall of limiting groove 15, and the bottom wall center position of embedded sheet 21 is fixedly connected with spring 24, and the bottom end of spring 24 is in contact with the upper ball 25, and the top periphery of embedded sheet 21 is fixedly connected with the matching sleeve 22, and the top sliding connection limiting block 14 of matching sleeve 22 is equipped with the matching groove 23 of matching limiting block 14 between the upper and lower side walls of one end of embedded sheet 21, and its overall pen head internal structure is detachable structure design, after the precision spring 24 is separated from ball 25, can rotate its matching sleeve 22, drive its embedded sheet 21 synchronous rotation, make its matching sleeve 22 and embedded sheet 21's matching groove 23 correspond its limiting block 14, at this moment, can be taken out matching sleeve 22 and embedded sheet 21 in limiting groove 15, and then take out spring 24, adjust its spring 24 again assembly, benefit the adjustment after the separation of precision spring 24 relative to ball 25.
[0023] Two ball 25 are arranged in abutting relation, and the diameter of the upper ball 25 is greater than that of the lower ball 25, and two ball 25 are arranged in abutting relation, and the diameter of the upper ball 25 is greater than that of the lower ball 25, and the lower side wall of the inner side wall of flow groove 16 is equipped with two ball 25 rolling assembly ball grooves 17 from top to bottom, and a plurality of flow holes 26 are arranged in equal angle between the upper and lower side walls of embedded sheet 21, and the plurality of flow holes 26 are located in the inner side of matching sleeve 22 and located on the outer side of spring 24, wherein the ink in the neutral pen ink supply pipe can enter into flow groove 16 through a plurality of flow holes 26, and finally flow out through the lower ball 25, so that the oil can be discharged, and at this time, the pen head main body 1 is moved, and the writing is completed.
[0024] The upper side wall of the annular outer side wall of pen head shell 11 is provided with a threaded groove 13, and the annular outer side wall of pen head shell 11 is fixedly sleeved with a limiting ring 12 in the upper middle part, and the limiting ring 12 is located below the threaded groove 13, and the overall pen head structure adopts a detachable structure design, and the upper end annular outer side wall of the pen head shell 11 of the pen head main body 1 is provided with a threaded groove 13, so that the pen head main body 1 and the pen shaft can be assembled, and the neutral pen ink supply pipe can be clamped in the pen head main body 1, and the assembly and disassembly between the overall pen head structure and the remaining components of the neutral pen are more convenient.
[0025] A plurality of grooves 18 are arranged in equal angle on the lower conical surface of pen head shell 11, and the plurality of grooves 18 play a role in preventing the pen head shell 11 from slipping when a user holds it.
[0026] The utility model discloses a ballpoint pen head, including the pen head body 1 and the pen holder, the pen head body 1 is connected with the pen holder, the pen head body 1 is provided with the ball 25, the ball 25 is provided with the guide groove 16, the guide groove 16 is provided with the guide hole 26, the pen head body 1 is provided with the embedding piece 21, the embedding piece 21 is provided with the matching groove 23, the matching groove 23 is provided with the limiting block 14, the pen head body 1 is provided with the matching sleeve 22, the matching sleeve 22 is provided with the limiting slot 15, the pen head body 1 is provided with the precision spring 24, the precision spring 24 is connected with the ball 25, the ball 25 is provided with the pen head shell 11, the pen head shell 11 is provided with the pen head shell 12, the pen head shell 12 is provided with the pen head shell 13.
[0027] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, carries out equivalent replacement or change, should be covered in the protection scope of the utility model.
Claims
1. A writing-resistant double-bead spring neutral pen tip, comprising a pen tip main body (1) provided with a pen tip internal mechanism (2) inside; characterized in that The pen tip main body (1) comprises a pen tip shell (11), a limiting groove (15) is formed at the top center of the pen tip shell (11), a flow guide groove (16) is formed at the center of the bottom wall inside the limiting groove (15), and a limiting block (14) is fixedly connected to the upper middle part of the inner side wall of the limiting groove (15); The pen tip internal mechanism (2) comprises two ball beads (25) which are rollingly assembled at the lower opening of the flow guide groove (16), and further comprises an embedded sheet (21) which is slidingly connected to the bottom wall of the limiting groove (15); The embedded sheet (21) is fixedly connected with a spring (24) at the center of the inner bottom wall, the bottom end of the spring (24) abuts against the upper ball bead (25), and the top end of the embedded sheet (21) is fixedly connected with a matching sleeve (22); The top end of the matching sleeve (22) is slidingly connected with the limiting block (14), and a matching groove (23) matching the limiting block (14) is formed between the upper and lower side walls of one end of the matching sleeve (22) and the embedded sheet (21).
2. The writing resistant bi-bead spring neutral pen point of claim 1, wherein: The two ball beads (25) are arranged in an upper-lower abutting manner, and the diameter of the upper ball bead (25) is greater than that of the lower ball bead (25).
3. The writing resistant bi-bead spring neutral pen point of claim 1, wherein: Two ball bead grooves (17) for rollingly assembling the ball beads (25) are formed from top to bottom at the lower inner side wall of the flow guide groove (16).
4. The writing resistant bi-bead spring neutral pen point of claim 1, wherein: A threaded groove (13) is formed at the upper annular outer side wall of the pen tip shell (11).
5. The writing resistant bi-bead spring neutral pen point of claim 1, wherein: A limiting ring (12) is fixedly sleeved at the upper middle part of the annular outer side wall of the pen tip shell (11), and the limiting ring (12) is located below the threaded groove (13).
6. The writing resistant bi-bead spring neutral pen point of claim 1, wherein: A plurality of grooves (18) are formed at the lower conical surface of the pen tip shell (11) in an equal angle manner.
7. The writing resistant bi-bead spring neutral pen point of claim 1, wherein: A plurality of flow guide holes (26) are formed between the upper and lower side walls of the embedded sheet (21) in an equal angle manner, and the flow guide holes (26) are located inside the matching sleeve (22) and outside the spring (24).