CN216300593U

CN216300593U - Writing pen

Info

Publication number: CN216300593U
Application number: CN202121244791.4U
Authority: CN
Inventors: 王元鸿
Original assignee: Qingdao Dianshi Stationery Co ltd
Current assignee: Qingdao Dianshi Stationery Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2022-04-15
Anticipated expiration: 2030-09-09
Also published as: CN213383595U

Abstract

The utility model discloses a writing pen, which comprises a pen container and a pen core assembly arranged in the pen container, wherein the pen core assembly comprises an ink container assembly, a pen point and an elastic element; an ink guiding core is arranged in the ink cartridge component; the pen point is arranged at one end of the ink cylinder assembly, a through ink flowing channel is formed inside the pen point, a ball part is arranged at the ink outlet end of the ink flowing channel, the ink guiding core is provided with a part of through ink flowing channel, and one end of the ink guiding core is abutted against the ball part; the elastic piece is sleeved on the periphery of the ink guiding core and is positioned in the ink flowing channel, the annular end part of the elastic piece is abutted against the ball part to apply acting force for enabling the ball part to abut against the inner wall of the ink outlet end, and contact sealing is formed between the ball part and the inner wall of the ink outlet end, so that ink volatilization and ink leakage are avoided.

Description

Writing pen

Technical Field

The utility model relates to the technical field of stationery, in particular to a writing pen.

Background

Compared with a gel pen, the traditional direct liquid type water-based ball pen has the advantages of long writing length (3-5 times of that of a common gel pen), uniform ink discharging, smooth hand feeling and the like. However, the traditional direct liquid type water-based ball-point pen adopts the cap-pulling type sealing design because the water-based ink is adopted and is easy to volatilize and dry. The pen cap has the problem of easy loss, and once the pen cap has sealed gas leakage, the product is extremely easy to dry the ink, leak the black. The pressing type direct liquid type water-based ball-point pen has a pressing type structure, so that a pen cap is not needed, and the hidden troubles and the problems can be solved.

Chinese patent CN200780033045.7 discloses a writing tool, which is also a pressing direct liquid writing pen, wherein the ink guiding core is a split structure, the built-in spring acts on the ink guiding core, the ink guiding core is pressed against the writing ball of the pen point, and the problem of ink volatilization or ink leakage is solved by the sealing formed between the writing ball and the inner edge of the pen point. The disadvantage is that, once the assembly is poor or the water-guiding core is processed poorly, the spring force is lost, resulting in insufficient sealing force of the writing ball. In other words, once the ink guide core is worn, or is machined slightly or assembled slightly, the ink guide core will be pressed against the side surface of the writing ball under the action of the spring, and the sealing force formed between the writing ball and the inner edge of the pen point will be deflected, so that the sealing is failed, and the problem of ink volatilization or ink leakage occurs.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

In order to solve the problems pointed out in the background technology, the utility model provides a writing pen, wherein a pen core assembly directly applies acting force to a ball-point part through an elastic part, so that the ball-point part can abut against the inner wall of an ink outlet end to form contact sealing, and ink volatilization and ink leakage are avoided.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

the utility model provides a pressing direct-liquid type pen core assembly, which comprises:

the ink cylinder assembly is internally provided with an ink guiding core;

the pen point is arranged at one end of the ink cylinder assembly, a run-through ink flowing channel is formed inside the pen point, a ball part is arranged at the ink outlet end of the ink flowing channel, the ink guiding core is provided with a part which runs through the ink flowing channel, and one end of the ink guiding core is abutted against the ball part;

the elastic piece is sleeved on the periphery of the ink guide core and positioned in the ink flowing channel, and the elastic piece is abutted against the ball part to apply acting force for enabling the ball part to abut against the inner wall of the ink outlet end.

In some embodiments of the present application, the elastic member is a conical spring, and one end of the conical spring is gradually reduced in diameter toward a direction close to the ball portion.

In some embodiments of the present application, the ink-leading core includes an ink-leading core upper segment and an ink-leading core lower segment of an integrated structure, a diameter of the ink-leading core upper segment is greater than a diameter of the ink-leading core lower segment, a step portion is formed between the ink-leading core upper segment and the ink-leading core lower segment, one end of the conical spring abuts against the ball portion, and the other end of the conical spring abuts against the step portion.

In some embodiments, the ball portion includes a ball, one end of the conical spring abuts against the ball, and one end of the ink-guiding core abuts against the ball.

In some embodiments of the present application, the ball portion includes an upper ball and a lower ball, the upper ball abuts against the lower ball, the conical spring abuts against the upper ball, and one end of the ink-guiding core abuts against the upper ball.

In some embodiments of the present application, the ink cartridge assembly includes an ink cartridge, a regulator, a first connector, and a second connector;

the regulator is arranged in the ink cylinder, and a first through hole is formed in the regulator;

the first connecting piece comprises a hollow straight cylinder part, a first convex ring part is arranged on the outer side of the straight cylinder part along the circumferential direction of the straight cylinder part, the ink cylinder is sleeved on the periphery of the straight cylinder part, one end of the ink cylinder abuts against the first convex ring part, and one end of the regulator is inserted into the first connecting piece;

a second through hole is formed in the second connecting piece, a second convex ring part and a third convex ring part are arranged on the outer side of the second connecting piece along the circumferential direction of the second connecting piece, one end of the second connecting piece is inserted into the first through hole, one end of the regulator is abutted against the second convex ring part, and one end of the first connecting piece is abutted against the third convex ring part;

one end of the pen point is inserted into the second through hole;

the first through hole, the second through hole and the ink flowing channel are coaxial and communicated, and the ink guiding core penetrates through the first through hole, the second through hole and the ink flowing channel.

In some embodiments of the present application, a vent is disposed on the first connecting member or the second connecting member.

In some embodiments of the present application, the straight cylinder portion is provided with a vent groove along a circumferential direction thereof.

In some embodiments of the present application, at least one first protrusion is disposed on an inner peripheral wall of the ink flow channel, and the first protrusion abuts against the ink guide core;

at least one second protruding part is arranged on the inner peripheral wall of the second through hole and abuts against the ink guide core;

the upper end of the ink guide core is in interference fit with the first through hole.

The utility model also provides a writing pen which comprises the pressing direct-liquid type pen core assembly.

Compared with the prior art, the utility model has the advantages and positive effects that:

in the disclosed pressing direct liquid formula refill subassembly of this application, the elastic component is direct to ball portion application effort, makes ball portion can be near the inner wall of play china ink end, will form the contact between the inner wall of ball portion and play china ink end sealed, and then avoids the ink to volatilize and leak china ink. The elastic part directly acts on the ball part, the sealing effect of the ball part is not affected by the processing or assembly deviation of other parts such as the ink guiding core and the like, and the sealing effect is better and more reliable.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a structure of a press direct-liquid cartridge assembly according to an embodiment;

FIG. 2 is an exploded view of a press direct liquid cartridge assembly according to an embodiment;

FIG. 3 is a cross-sectional view of a press direct-liquid cartridge assembly according to an embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is an enlarged view of portion A of FIG. 3 in another embodiment;

FIG. 6 is a schematic structural diagram of a first connector according to an embodiment;

FIG. 7 is a schematic structural view of a second connector according to an embodiment;

FIG. 8 is a cross-sectional view of a second connector according to an embodiment;

FIG. 9 is a cross-sectional view of a nib according to an embodiment.

Reference numerals:

100-ink cartridge component, 110-ink cartridge, 120-regulator, 121-first through hole, 130-first connecting piece, 131-straight cartridge part, 132-first convex ring part, 133-vent, 134-vent groove, 140-second connecting piece, 141-second through hole, 142-second convex ring part, 143-third convex ring part, 144-second convex part, 150-ink guide core, 151-ink guide core upper section, 152-ink guide core lower section, 153-step part;

200-pen point, 210-ink flowing channel, 211-ink outlet end, 220-first bulge, 230-ball part, 231-upper ball and 232-lower ball;

300-elastic member, 310-conical spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example one

Referring to fig. 1 to 3, the pressing direct-liquid type cartridge assembly of the present embodiment mainly includes an ink cartridge assembly 100, a pen point 200, and an elastic member 300.

An ink guiding core 150 is arranged in the ink cartridge assembly 100, and the ink cartridge assembly 100 is used for storing and guiding ink, and guiding the ink to the pen point 200 for writing.

The pen point 200 is arranged at one end of the ink cartridge assembly 100, a through ink flowing channel 210 is formed inside the pen point 200, a ball part 230 is arranged at the ink outlet end of the ink flowing channel 210, the ink guiding core 150 is provided with a part of the through ink flowing channel 210, and one end of the ink guiding core 150 abuts against the ball part 230. The ink cartridge assembly 100 guides the ink into the ink flow channel 210 and reaches the ball portion 230, and the ball portion 230 shears and rolls the ink, so as to achieve a smooth ink discharging effect.

Referring to fig. 4, the elastic member 300 is sleeved on the outer periphery of the ink-guiding core 150 and located in the ink-flowing channel 210, and the elastic member 300 abuts against the ball portion 230 to apply a force that makes the ball portion 230 abut against the inner wall of the ink-discharging end 211.

The elastic member 300 directly applies a force to the ball portion 230, so that the ball portion 230 can abut against the inner wall of the ink outlet end 211, and a contact seal is formed between the ball portion 230 and the inner wall of the ink outlet end 211, thereby preventing ink from volatilizing and leaking.

The elastic member 300 directly acts on the ball portion 230, and the sealing effect of the ball portion 230 is not affected by processing or assembling deviation of other components such as the ink guide core, and the sealing effect is better and more reliable.

In some embodiments of the present application, referring to fig. 2, the elastic member 300 is a conical spring 310, and one end of the conical spring 310 has a gradually decreasing diameter toward the ball portion 230, i.e., the conical spring 310 is a conical spring. The conical spring 310 has a large diameter section at the upper part for facilitating the connection with the ink-guiding core 150, and a small diameter section at the lower part for facilitating the abutting with the ball-shaped part 230, so as to avoid the influence of the overlarge end diameter of the conical spring 310 on the reliability of the abutting with the ball-shaped part 230.

In some embodiments of the present application, the ink-guiding core 150 includes an ink-guiding core upper section 151 and an ink-guiding core lower section 152 which are integrally formed, a diameter of the ink-guiding core upper section 151 is greater than a diameter of the ink-guiding core lower section 152, and a step 153 is formed between the ink-guiding core upper section 151 and the ink-guiding core lower section 152. One end of the conical spring 310 abuts against the ball portion 230, and the other end of the conical spring 310 abuts against the step portion 153.

The ink guide core 150 has the advantages of simple integrated structure and convenient assembly, the step part 153 has a limiting effect on the conical spring 310, the conical spring 310 is limited in the ink flowing channel 210, and the abutting effect of the conical spring 310 on the ball part 230 is improved.

The ink-guiding core 150 is made of, but not limited to, polymethyl methacrylate fiber, polyester fiber, polypropylene fiber, nylon fiber, POM microporous structure, and a composite of the above fibers.

In this embodiment, the ball portion 230 is a ball, and referring to fig. 4, one end of the conical spring 310 abuts against the ball, and one end of the ink-guiding core 150 abuts against the ball.

The end of the conical spring 310 is annular, and the annular end structure acts on the ball, so that the circumferential force of the ball is uniform, and the contact sealing between the ball and the inner wall of the ink flowing channel 210 is more reliable.

In some embodiments of the present application, referring to fig. 1 to 3, an ink cartridge assembly 100 includes an ink cartridge 110, a regulator 120, a first connector 130, and a second connector 140.

The ink cartridge 110 has a hollow cylindrical structure for storing ink, and one end of the ink cartridge 110 is open to facilitate mounting of other components.

The regulator 120 is disposed in the ink cartridge 110, the regulator 120 has functions of guiding ink, dredging ink, and hanging ink, and the specific structure of the regulator 120 is not important in this application and will not be described in detail. The regulator 120 is internally formed with a first through hole 121.

Referring to fig. 6, the first connector 130 includes a hollow straight cylinder portion 131, and a first collar portion 132 is provided on an outer side of the straight cylinder portion 131 in a circumferential direction thereof. The ink cartridge 110 is sleeved on the periphery of the straight cylinder portion 131, one end of the ink cartridge 110 abuts against the first convex ring portion 132, and one end of the adjuster 120 is inserted into the first connecting member 130.

Referring to fig. 7 and 8, a second through hole 141 is formed inside the second link 140, and a second convex ring portion 142 and a third convex ring portion 143 are provided on the outer side of the second link 140 in the circumferential direction thereof. One end of the second connecting member 140 is inserted into the first through hole 121, one end of the adjuster 120 abuts against the second convex ring portion 142, and one end of the first connecting member 130 abuts against the third convex ring portion 143

One end of the pen point 200 is inserted into the second through hole 141.

As can be seen from fig. 3, in the present embodiment, the ink cartridge assembly 100 has fewer components, and each component has a very simple structure, is low in cost, is not easy to make mistakes during assembly, and is beneficial to production and assembly. After the ink cartridge 110, the adjuster 120, the first connecting member 130, the second connecting member 140 and the pen point 200 are assembled into a whole, a reliable and stable integrated structure is formed by inserting and matching the ink cartridge, the adjuster, the first connecting member 130, the second connecting member 140 and the pen point 200, and abutting the structure such as a limiting structure.

The first through hole 121, the second through hole 141, and the ink flow channel 210 are coaxial and communicate, and the ink guide core 150 penetrates through the first through hole 121, the second through hole 141, and the ink flow channel 210. The ink-guiding core 150 is directly inserted into the mounting hole to complete the mounting.

In some embodiments of the present application, the fixation of the ink-introducing core 150 is improved.

Specifically, referring to fig. 3 and 9, at least one first protrusion 220 is disposed on an inner peripheral wall of the ink flow channel 210, the first protrusion 220 is disposed near an upper end of the pen tip 200, and the first protrusion 220 abuts against the ink guiding core 150 to clamp and fix the ink guiding core 150.

Referring to fig. 8, in the second connecting member 140, at least one second protrusion 144 is disposed on an inner circumferential wall of the second through hole 141, and the second protrusion 144 abuts against the ink-guiding core 150, so as to further improve the clamping and fixing of the ink-guiding core 150.

The present embodiment does not specifically limit the number, arrangement, machining form, and the like of the first projecting portion 220 and the second projecting portion 144.

For example, in some embodiments, after the injection molding process of the pen tip 200 is completed, the inner peripheral wall of the ink flow channel 210 is dotted to form the first protruding portions 220, and 3 first protruding portions 220 may be uniformly arranged along the circumferential direction.

For the second connector 140, a part of the second protrusions 144 are disposed at the upper position of the second through hole 141 and are arranged at intervals in the circumferential direction, and another part of the second protrusions 144 are disposed at the middle position of the second through hole 141 and are arranged at intervals in the circumferential direction. The second protrusion 144 is formed by dotting after the injection molding of the second connecting member 140 is completed. The centrally disposed second protrusion 144 is injection molded with the second connector 140.

In other embodiments, the first protrusion 220 and the second protrusion 144 may also be in a rib structure, and the clamping and fixing effect on the ink guiding core 150 can also be achieved.

The upper end of the ink-guiding core 150 is in interference fit with the first through hole 121, and further the ink-guiding core 150 is fixed.

In this embodiment, the interference fit of the first protruding portion 220, the second protruding portion 144 and the first through hole 121 forms an upper, middle and lower triple fixing function of the ink guiding core 150, so that the stability of the ink guiding core 150 is greatly improved, the ink guiding core 150 is ensured not to move in various damage environments, poor contact between the ink guiding core 150 and the ball portion 230 is avoided, and the ink supplying effect of the ink guiding core 150 is not affected.

In some embodiments of the present application, referring to fig. 1 and 6, the first connecting member 130 is provided with an air vent 133, which mainly functions to ensure balance between internal pressure and external pressure, ensure an ink discharging effect, and avoid dry ink, exposed ink, and the like. If the ventilation is too smooth, the ink is easy to volatilize, and the ink is dried; too small ventilation can not ensure the smooth ink guiding of the internal regulator, which can cause insufficient ink supply or unbalanced internal and external pressure to cause ink leakage.

In other embodiments, the vent 133 may be disposed on the second connecting member 140 (not shown), so as to achieve the same effect as described above.

In some embodiments of the present application, referring to fig. 6, a vent groove 134 is formed on the outer peripheral wall of the straight cylinder portion 131 of the first connecting member 130 along the circumferential direction thereof, and the vent groove 134 helps to reduce the evaporation of the ink and delay the drying of the ink.

In this embodiment, the specific structural form of the vent groove 134 is not limited, for example, the vent groove 134 may be a plurality of annular grooves arranged at intervals, and adjacent annular grooves are communicated with each other through a gap; the vent channel 134 may also be a helical channel structure.

Example two

The second embodiment is different from the first embodiment in that the bead part 230 is provided, and other structures are the same, so only the bead part 230 will be described in detail below.

In the second embodiment, referring to fig. 5, the ball part 230 is a double-ball structure, and includes an upper ball 231 and a lower ball 232, the upper ball 231 abuts against the lower ball 232, the conical spring 310 abuts against the upper ball 231, and the ink-guiding core 150 abuts against the upper ball 231.

The conical spring 310 directly acts on the upper ball 231, and the upper ball 231 directly acts on the lower ball 232 to form force conduction, so that the lower ball 232 and the inner wall of the ink flowing channel 210 form contact sealing, and ink volatilization and ink leakage are avoided.

The conical spring 310 abuts against the upper ball 231, and regardless of whether the conical spring 310 and the upper ball 231 are fitted or not, the upper ball 231 always abuts against the lower ball 232 in the center, which helps to improve the sealing effect.

The friction force of the double-ball structure is very small, and the writing hand feeling is very smooth.

EXAMPLE III

The present embodiment provides a writing pen comprising the pressing direct-liquid type cartridge assembly disclosed in the first and second embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a writing pen, includes the pen container and locates refill subassembly in the pen container, its characterized in that, refill subassembly includes:

the ink cylinder assembly is internally provided with an ink guiding core;

the elastic piece is sleeved on the periphery of the ink guide core and positioned in the ink flowing channel, one end of the elastic piece is annular, and the annular end of the elastic piece is abutted against the ball bead part to apply acting force for enabling the ball bead part to abut against the inner wall of the ink outlet end.

2. The writing pen of claim 1,

the elastic piece is a conical spring, and one end of the conical spring is gradually reduced in diameter towards the direction close to the ball part.

3. The writing pen of claim 2,

the ink guide core comprises an ink guide core upper section and an ink guide core lower section which are of an integral structure, the diameter of the ink guide core upper section is larger than that of the ink guide core lower section, a step part is formed between the ink guide core upper section and the ink guide core lower section, one end of the conical spring abuts against the ball part, and the end, far away from the annular end part, of the conical spring abuts against the step part.

4. The writing pen of claim 2,

the ball part comprises a ball, the annular end part of the conical spring abuts against the ball, and one end of the ink guide core abuts against the ball.

5. The writing pen of claim 2,

the ball part comprises an upper ball and a lower ball, the upper ball is abutted against the lower ball, the annular end part of the conical spring is abutted against the upper ball, and one end of the ink guide core is abutted against the upper ball.

6. The writing pen according to claim 4 or 5,

the ink cartridge component comprises an ink cartridge, a regulator, a first connecting piece and a second connecting piece;

one end of the pen point is inserted into the second through hole;

7. The writing pen of claim 6,

the straight cylinder part is provided with vent grooves along the circumferential direction, the vent grooves are a plurality of annular grooves arranged at intervals, and the adjacent annular grooves are communicated through gaps; or the vent groove is of a spiral groove body structure.

8. The writing pen of claim 6,

at least one first bulge is arranged on the inner peripheral wall of the ink flowing channel and abuts against the ink guide core;

9. The writing pen of claim 8,

after the nib injection moulding was accomplished, beat formation on the internal perisporium of ink flow passageway first bulge, partly the second bulge is located the second through-hole leans on the position and sets up along circumference interval, another part the second bulge is located the second through-hole leans on the position in the middle and sets up along circumference interval, leans on to set up the second bulge does beat formation after the second connecting piece injection moulding was accomplished, lean on in set up the second bulge be with the second connecting piece is injection moulding together.

10. The writing pen of claim 8,

the first protruding part and the second protruding part are of clamping rib structures.