CN114801548A - Pressing straight liquid type double ball-point pen refill - Google Patents

Abstract

The invention discloses a pressing direct-liquid type double-ball pen refill, which comprises: the pen comprises a pen core assembly, a pen point arranged at one end of the pen core assembly, a first water diversion core and a second water diversion core capable of elastically deforming, wherein a flowing ink channel is formed inside the pen point, a first ball and a second ball which are mutually abutted are arranged at the tail end of the pen point at the flowing ink channel, the first water diversion core is movably arranged in the flowing ink channel, and one end of the first water diversion core is abutted on the second ball; the second water diversion core is fixedly inserted in the pen core assembly, and one end of the second water diversion core is elastically abutted against the other end of the first water diversion core so as to apply elastic force towards the second ball to the first water diversion core. This pressing direct-liquid formula two ball-point pen core exerts elasticity through the second lead water core to first ball and realizes sealing, reaches good leak protection black effect, adopts two ball structural design simultaneously, reduces the frictional force of first ball for write more in the same direction as smooth.

Description

Pressing straight liquid type double ball-point pen refill

Technical Field

The invention relates to the technical field of writing tools, in particular to a pressing direct-liquid type double-ball pen refill.

Background

Compared with the traditional writing pen, the direct-liquid type ball-moving writing pen has the advantages of uniform inking, smooth writing, long writing length and the like, thereby being more and more popular with consumers. The principle is that ink is directly provided through an ink storage cavity arranged in the pen, and the ink is adsorbed on the ink guide core and is continuously conveyed to the pen head through the contact of the ink guide core and the pen head.

Because the ink used by the direct-liquid type writing pen is easy to volatilize and dry, the existing direct-liquid type writing pen adopts the structural design that the pen cap is arranged on the pen, and the pen point is inserted into the pen cap for sealing when the pen is not used. Although the mode can solve the problem of volatile and dry ink, a user easily forgets to cover the pen cap in actual use, so that ink leakage and pen point dry conditions of the writing pen occur, and the writing pen cannot be compatible with a pressing type pen; meanwhile, the existing direct-liquid pen has the defect of unsmooth writing due to large friction force between the ball and the water guide core.

Disclosure of Invention

In order to solve the technical problems, the invention provides a pressing direct-liquid type double-ball pen refill, which realizes sealing by applying elasticity to a ball through a water diversion core, achieves a good ink leakage prevention effect, and simultaneously adopts a double-ball structural design to reduce the friction force of the ball and ensure that writing is smoother.

The technical scheme adopted by the invention for solving the technical problem is as follows: a pressing direct-liquid type double-ball pen refill comprises: the pen comprises a pen core assembly, a pen point arranged at one end of the pen core assembly, a first water diversion core and a second water diversion core capable of elastically deforming, wherein an ink flowing channel is formed in the pen point, a first ball and a second ball which are mutually abutted are arranged at the tail end of the ink flowing channel of the pen point, the first water diversion core is movably arranged in the ink flowing channel, and one end of the first water diversion core is abutted to the second ball; the second water diversion core is fixedly inserted in the pen core assembly, and one end of the second water diversion core is elastically abutted against the other end of the first water diversion core so as to apply elastic force towards the second ball to the first water diversion core.

As a further improvement of the invention, the end part of the pen point is provided with a pen point bowl mouth, the first ball can be accommodated in the pen point bowl mouth in a vertically floating way, at least part of the first ball is protruded to the outside, and the elastic force of the second water diversion core acting on the first water diversion core drives the first ball to be in sealing abutment against the inner wall of the pen point bowl mouth through the second ball.

As a further improvement of the invention, a ball seat part is arranged in the ink flowing channel, the second ball is borne on the ball seat part, and a plurality of ink discharging grooves are arranged between the ball seat part and the pen point bowl mouth along the inner wall.

As a further improvement of the present invention, the second water diversion core is a porous fiber structure body with resilience made of soft material.

As a further improvement of the present invention, the cartridge assembly includes a cartridge holder, a water reservoir, and a joint, the cartridge holder has an ink storage chamber for storing ink inside, the water reservoir is accommodated in the ink storage chamber, the joint is mounted at one end of the cartridge holder and presses the water reservoir, and an air return passage is formed between the joint and the water reservoir and the cartridge holder, and the air return passage communicates with the ink storage chamber and the external atmosphere.

As a further improvement of the invention, the water reservoir is provided with an insertion hole along a central axis, the second water diversion core is inserted in the insertion hole in an interference fit manner, and the other end of the second water diversion core extends into the ink storage cavity.

As a further improvement of the invention, the jack extends towards the central shaft along the inner wall to form a first limit step, the second water diversion core is provided with a second limit step, and the second limit step is limited at the bottom of the first limit step by upward stopping.

As a further improvement of the invention, one end of the water receiver extends towards the ink storage cavity to form a top plate opposite to the jack, and one end face of the second water diversion core abuts against the top plate.

As a further improvement of the invention, the ink storage cavity is provided with a limit stop table around the inner wall, the joint is provided with an insertion part and an annular boss arranged along the periphery of the insertion part, the insertion part is fixedly inserted in the opening end of the refill tube, the edge of the end part of the refill tube abuts against the annular boss, and the water storage device is pressed and stopped on the limit stop table.

As a further improvement of the invention, the pen point is one of a bullet pen point, a needle tube pen point, a gourd pen point and a st pen point.

The invention has the beneficial effects that:

1. the invention provides a pressing direct-liquid type double-ball pen core which is provided with a first water diversion core, a second water diversion core, a first ball and a second ball, wherein the first ball and the second ball are abutted against each other;

2. by adopting the double-ball structural design, the first ball is subjected to smaller friction force, ink is discharged uniformly, and writing is smoother;

3. the technical scheme has the advantages of simple structural design, convenience in assembly, improvement in production efficiency, reduction in cost, improvement in product stability, guarantee in writing effect and the like;

4. through adopting this application technical scheme to make the refill no longer confine the use to on inserting cap writing pen, also can be applicable to the writing pen of multiple forms such as press type on, the nib is unrestricted in addition, can be applicable to the nib of various shapes such as bullet nib, needle tubing nib, calabash nib, st nib, and application scope is wide.

Drawings

FIG. 1 is a perspective view of a first embodiment of a pressing direct-liquid type double-ball-point pen refill of the present invention;

FIG. 2 is an exploded view of a first embodiment of a pressing direct liquid type dual ball-point pen refill according to the present invention;

FIG. 3 is a cross-sectional view of a first embodiment of a pressing direct liquid type dual ball-point pen refill of the present invention;

FIG. 4 is an enlarged view of A in FIG. 3 of the pressing direct liquid type dual ball-point pen refill according to the present invention;

FIG. 5 is a cross-sectional view of a pen tip in an embodiment of the pressing direct liquid type dual ball-point pen refill of the present invention;

FIG. 6 is a cross-sectional view of a second embodiment of a pressing direct liquid dual ball-point pen refill of the present invention;

FIG. 7 is a cross-sectional view of a third embodiment of a pressing direct liquid type dual ball-point pen refill of the present invention;

FIG. 8 is a cross-sectional view of a fourth embodiment of a pressing direct fluid dual ball-point pen cartridge in accordance with the present invention;

FIG. 9 is a cross-sectional view of a fifth embodiment of a pressing direct liquid dual ball-point pen refill of the present invention;

fig. 10 is a sectional view of a sixth embodiment of a pressing direct liquid type double ball-point pen refill according to the present invention.

The following description is made with reference to the accompanying drawings:

1-pen head; 101-ink flow channel;

102-nib bowl; 103-ball seat portion;

104-lower gutter; 105-limit salient points;

2-first water diversion core; 3-second diversion core;

301-second limit step; 4-first bead;

5-second bead; 6-refill tube;

601-ink reservoir; 602-limit stop table;

7-water reservoir; 701-jack;

702-first limit step; 703-the top plate;

8-a joint; 801-plug part;

802 — annular boss.

Detailed Description

A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 5, the present invention provides a pressing direct-fluid type dual ball-point pen refill, including: the pen comprises a pen core assembly, a pen point 1 arranged at one end of the pen core assembly, a first water guide core 2 and a second water guide core 3 capable of being elastically deformed.

The inside of the pen point 1 is formed with a flowing ink channel 101, and the pen point 1 is provided with a first ball 4 and a second ball 5 which are abutted against each other at the tail end of the flowing ink channel 101, wherein the first ball 4 is positioned below the second ball 5. The first water diversion core 2 is movably arranged in the ink flowing channel 101, and the lower end of the first water diversion core 2 is abutted against the second ball 5. The second water-leading core 3 is fixedly inserted in the refill component and is coaxially arranged with the first water-leading core 2, and the lower end of the second water-leading core 3 is elastically abutted against the upper end of the first water-leading core 2 so as to apply elastic force towards the second ball 5 to the first water-leading core 2.

Referring to fig. 4 and 5, the tip of the pen point 1 is provided with a pen point bowl 102, the first ball 4 can be accommodated in the pen point bowl 102 in a vertically floating manner and at least partially protrudes outside, the elastic force of the second water-introducing core 3 acting on the first water-introducing core 2 drives the first ball 4 to be in sealing contact with the inner wall of the pen point bowl 102 through the second ball 5, so that sealing contact is realized, ink leakage and ink drying are prevented, the writing pen using the pen core is not limited to a cap inserting mode any more, and the writing pen can be applied to various forms of writing pens such as pressing.

Wherein, the second draws water core 3 is the porous fiber structure body that has the resilience force that adopts soft material to make, and the material that preferred adopted is the nylon fiber, makes through the flexible glue bonding for the second draws water core 3 to have stronger elastic deformation ability. First water-drawing core 2 adopts the material of leading water core 3 relative rigidity of second, if adopt the porous fiber structure body that dacron fibre, acrylic fibre or POM wire drawing micropore formed, non-deformable, and then avoid first water-drawing core 2 to appear seriously warping and cause can't support second ball 5 and exist and block up the risk of ink flowing passageway 101 to guarantee the durable use of first water-drawing core 2, can be reliable lead the ink to second ball 5 on.

Furthermore, a ball seat 103 is provided in the ink flow channel 101 near the nib 102, and the second ball 5 is carried on the ball seat 103. A plurality of ink grooves 104 are arranged along the inner wall between the ball seat part 103 and the pen point bowl mouth 102, so that the ink in the ink flowing channel 101 can flow onto the first ball 4 from the ink grooves 104. This application is through adopting two ball structural design for the frictional force that first ball 4 received is less, and it is even to go out china ink, writes more in the same direction as smooth.

Referring to fig. 2 and 3, the cartridge assembly includes a cartridge holder 6, a water reservoir 7, and a joint 8, the cartridge holder 6 having an open end at a lower end thereof and an ink storage chamber 601 for storing ink therein. The water reservoir 7 is housed in the ink reservoir 601 near the open end of the cartridge holder 6. The joint 8 is hollow, is installed at the open end of the cartridge holder 6, and presses the water reservoir 7. Specifically, the upper end of the joint 8 is provided with an insertion part 801 and an annular boss 802 arranged along the periphery of the insertion part 801, and the insertion part 801 is further provided with a plurality of spaced convex ribs along the periphery, and the insertion part 801 is inserted into the opening end of the refill tube 6 and fixedly inserted through interference fit of the convex ribs and the inner wall of the opening end. The ink storage cavity 601 is provided with a limit stop 602 around the inner wall, after the ink storage cavity is inserted in place, the edge of the opening end of the refill tube 6 abuts against the annular boss 802, and meanwhile, the upper end of the insertion part 801 is arranged on the water storage device 7 in an overhead mode, so that the water storage device 7 is pressed and stopped on the limit stop 602. The reservoir 7 is provided with an insertion hole 701 along the center axis, and the second wick 3 is inserted into the insertion hole 701 with an interference fit, preferably with an interference of 0.05mm, to prevent the ink in the reservoir 601 from leaking from the insertion hole 701. The upper end of the second wick 3 extends into the ink storage chamber 601, and is used for contacting with ink to guide the ink to the lower end. A limiting structure is arranged between the upper end of the second water diversion core 3 close to the water receiver 7, the limiting structure comprises a first limiting step 702 formed by extending the upper end of the jack 701 towards the central axis along the inner wall, and a second limiting step 301 formed by gradually reducing the diameter of the lower end of the second water diversion core 3 towards the upper end, and the second limiting step 301 is upwards stopped and limited at the bottom of the first limiting step 702. When the assembly, the second water diversion core 3 can enable the lower end of the second water diversion core to elastically abut against the upper end of the first water diversion core 2 under the limiting of the water receiver 7, so that the second water diversion core 3 is in a compression state and elastically deforms. By adopting the design scheme, the structure is simple, the assembly is convenient, the cost is reduced, the product stability is increased, and the writing effect is ensured.

Wherein, an air return channel is formed between the joint 8 and the water reservoir 7 and the refill tube 6, and the air return channel is communicated with the ink storage cavity 601 and the external atmosphere. Specifically, the annular boss 802 is provided with an air inlet hole and the convex rib of the insertion part 801 is provided with a notch; the water receiver 7 is provided with a plurality of fins at intervals, an annular ink storage slot is formed between every two adjacent fins, the water receiver 7 is provided with an air gap channel communicated with the annular ink storage slots, and the air inlet hole is communicated with the ink storage cavity 601 sequentially through the gap and the air gap channel, so that the pressure balance in the ink storage cavity 601 is ensured.

Referring to fig. 4, in the present embodiment, the pen point 1 is a bullet pen point, in order to match with the bullet pen point, the first water guiding core 2 is correspondingly configured to be cylindrical with a large upper section diameter and a small lower section diameter, the upper section diameter of the first water guiding core 2 is larger, so as to ensure a contact area with the second water guiding core 3, so as to better attract ink from the second water guiding core 3, and the lower section diameter is smaller so as to abut against the second ball 5, so as to ensure that the first water guiding core 2 has higher structural stability.

When the ink-guiding pen is used, the first ball 4 floats upwards in the pen head bowl opening 102 by applying the pressing force of the pen core on a paper surface to open the pen head bowl opening 102, ink can flow out, the first ball 4 pushes the second ball 5 and the first water-guiding core 2 upwards in sequence to further compress the second water-guiding core 3, the second water-guiding core 3 guides the ink in the ink storage cavity 601 to the first water-guiding core 2, the ink is guided by the first water-guiding core 2 to reach the second ball 5 and fill the ink flowing channel 101, the ink flows onto the first ball 4 along the ink discharging groove 104, and the first ball 4 rolls to cut the ink to realize a smooth writing effect. When the pen is not used for writing, under the effect of the resilience force of the second water guide core 3, the first water guide core 2 is pushed to abut against the second ball 5, and the second ball 5 pushes the first ball 4 to abut against the inner wall of the pen head bowl opening 102 in a sealing mode, so that contact sealing is realized.

Example two

The difference between this embodiment and the first embodiment is the difference of the limiting structure between the water reservoir 7 and the second wick 3. Specifically, referring to fig. 6, in this embodiment, the top end of the water reservoir 7 extends toward the ink storage cavity 601 to form a top plate 703 facing the insertion hole 701, wherein a hole for ink circulation is formed in a connecting portion between the top plate 703 and the top end of the water reservoir 7, and the top end surface of the second water diversion core 3 abuts against the top plate 703, so that the water reservoir 7 is limited to the second water diversion core 3.

EXAMPLE III

The difference between this embodiment and the first embodiment is the difference of the limiting structure between the water reservoir 7 and the second wick 3. Specifically, referring to fig. 7, in the embodiment, the second diversion core 3 and the water receiver 7 are in interference fit for limiting, interference magnitude and interference length between the upper portion of the insertion hole 701 and the second diversion core 3 are increased to increase friction force therebetween, and further the second diversion core 3 is fixed to the upper portion of the water receiver 7.

Example four

The difference between the present embodiment and the first embodiment or the second embodiment or the third embodiment is that the shape of the pen point 1 is different. FIG. 8 is a cross-sectional view of a nib 1 employing a needle tube according to a fourth embodiment, in which a plurality of limit bumps 105 are annularly arranged in an ink flow channel 101 near a nib bowl 102, upper portions of the limit bumps 105 are jointly configured to form a ball seat 103, and an ink drop groove 104 is formed by a gap between two adjacent limit bumps 105. In order to match with the needle tube pen point for use, the diameter of the first water leading core 2 is correspondingly set to be smaller than the inner diameter of the needle tube pen point, so that two ends of the first water leading core 2 can be respectively abutted against the second water leading core 3 and the second ball 5, and the normal ink guiding function is realized.

EXAMPLE five

The difference between the present embodiment and the first embodiment or the second embodiment or the third embodiment is that the shape of the pen point 1 is different. Referring to fig. 9, the pen tip 1 adopted in the present embodiment is a st pen tip (ultra-fine tapered pen tip), and the length of the second water diversion core 3 and the structure and size of the first water diversion core 2 are adjusted accordingly to meet the use requirement of the st pen tip.

EXAMPLE six

The difference between the present embodiment and the first embodiment or the second embodiment or the third embodiment is that the shape of the pen point 1 is different. Referring to fig. 10, the pen point 1 adopted in the present embodiment is a gourd pen point, and the length of the second water diversion core 3 and the structure and size of the first water diversion core 2 are adjusted accordingly to meet the use requirement of the gourd pen point.

Of course, the present application is also applicable to nibs of other shapes than those listed, which are not to be taken as an example.

Therefore, according to the technical scheme, ink leakage and ink drying can be effectively prevented, the pen point can be suitable for various pen points in shapes such as a bullet pen point, a needle tube pen point, a gourd pen point and a st pen point, and the application range is wide.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only a preferred embodiment of the invention, which can be embodied in many different forms than described herein, and therefore the invention is not limited to the specific embodiments disclosed above. And that those skilled in the art may, using the methods and techniques disclosed above, make numerous possible variations and modifications to the disclosed embodiments, or modify equivalents thereof, without departing from the scope of the claimed embodiments. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims (10)

1. A pressing direct-liquid type double-ball pen refill is characterized by comprising: the pen comprises a pen core assembly, a pen point (1) arranged at one end of the pen core assembly, a first water leading core (2) and a second water leading core (3) capable of elastically deforming, wherein an ink flowing channel (101) is formed inside the pen point (1), a first ball bead (4) and a second ball bead (5) which are abutted against each other are arranged at the tail end of the pen point (1) positioned at the ink flowing channel (101), the first water leading core (2) is movably arranged in the ink flowing channel (101), and one end of the first water leading core is abutted against the second ball bead (5); the second water-leading core (3) is fixedly inserted in the pen core assembly, and one end of the second water-leading core is elastically abutted against the other end of the first water-leading core (2) to apply elastic force towards the second ball (5) to the first water-leading core (2).

2. The pressing direct liquid type double ball pen refill according to claim 1, characterized in that: the pen head is characterized in that a pen head bowl opening (102) is formed in the end portion of the pen head (1), the first ball (4) can float up and down and is contained in the pen head bowl opening (102) and at least part of the first ball is protruded to the outside, and the elastic force of the second water guide core (3) acting on the first water guide core (2) drives the first ball (4) to be abutted to the inner wall of the pen head bowl opening (102) in a sealing mode through the second ball (5).

3. The pressing direct liquid type double ball pen refill according to claim 2, characterized in that: a ball seat part (103) is arranged in the ink flowing channel (101), the second ball (5) is borne on the ball seat part (103), and a plurality of ink discharging grooves (104) are arranged between the ball seat part (103) and the pen point bowl opening (102) along the inner wall.

4. The pressing direct liquid type double ball pen refill according to claim 1, characterized in that: the second water diversion core (3) is a porous fiber structure body which is made of soft materials and has resilience.

5. The pressing direct liquid type double ball pen refill according to claim 1, characterized in that: the refill assembly comprises a refill tube (6), a water storage device (7) and a connector (8), wherein an ink storage cavity (601) used for storing ink is formed in the refill tube (6), the water storage device (7) is contained in the ink storage cavity (601), the connector (8) is installed at one end of the refill tube (6) and tightly presses the water storage device (7), and an air return channel is formed among the connector (8), the water storage device (7) and the refill tube (6) and is communicated with the ink storage cavity (601) and the external atmosphere.

6. A pressing direct liquid type double ball pen refill according to claim 5, characterized in that: the water receiver (7) is provided with an insertion hole (701) along a central axis, the second water diversion core (3) is inserted in the insertion hole (701) in an interference fit mode, and the other end of the second water diversion core extends into the ink storage cavity (601).

7. The pressing direct liquid type double ball pen refill according to claim 6, characterized in that: the jack (701) extends towards the central axis along the inner wall to form a first limiting step (702), a second limiting step (301) is arranged on the second water diversion core (3), and the second limiting step (301) is limited at the bottom of the first limiting step (702) in an upward stopping mode.

8. The pressing direct liquid type double ball pen refill according to claim 6, characterized in that: one end of the water storage device (7) extends towards the ink storage cavity (601) to form a top plate (703) opposite to the jack (701), and one end face of the second water diversion core (3) abuts against the top plate (703).

9. A pressing direct liquid type double ball pen refill according to claim 5, characterized in that: the ink storage cavity (601) is provided with a limiting blocking platform (602) around the inner wall, the joint (8) is provided with an insertion part (801) and an annular boss (802) arranged along the periphery of the insertion part (801), the insertion part (801) is fixedly inserted into the opening end of the refill tube (6) and enables the end edge of the refill tube (6) to abut against the annular boss (802), and the water storage device (7) is pressed and stopped on the limiting blocking platform (602).

10. The pressing direct liquid type double ball pen refill according to claim 1, characterized in that: the pen point (1) adopts one of a bullet pen point, a needle tube pen point, a gourd pen point and a st pen point.

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