WO2022052753A1 - 揿动直液式笔芯组件及书写笔 - Google Patents

揿动直液式笔芯组件及书写笔 Download PDF

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Publication number
WO2022052753A1
WO2022052753A1 PCT/CN2021/112993 CN2021112993W WO2022052753A1 WO 2022052753 A1 WO2022052753 A1 WO 2022052753A1 CN 2021112993 W CN2021112993 W CN 2021112993W WO 2022052753 A1 WO2022052753 A1 WO 2022052753A1
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WO
WIPO (PCT)
Prior art keywords
ink
ball
abuts against
core
hole
Prior art date
Application number
PCT/CN2021/112993
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English (en)
French (fr)
Inventor
王元鸿
Original Assignee
青岛点石文具用品有限公司
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Filing date
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Application filed by 青岛点石文具用品有限公司 filed Critical 青岛点石文具用品有限公司
Priority to US18/025,391 priority Critical patent/US20230339254A1/en
Publication of WO2022052753A1 publication Critical patent/WO2022052753A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K7/00—Ball-point pens
    • B43K7/10—Arrangements for feeding ink to the ball points
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K1/00—Nibs; Writing-points
    • B43K1/08—Nibs; Writing-points with ball points; Balls or ball beds
    • B43K1/082—Balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K11/00—Filling devices

Definitions

  • the present invention relates to the technical field of stationery, and in particular, to a pressing and straight liquid type refill assembly and a writing pen.
  • the traditional straight-liquid water-based ballpoint pen Compared with the gel pen, the traditional straight-liquid water-based ballpoint pen has the advantages of long writing length (3-5 times that of the ordinary gel pen), uniform inking and smooth hand feeling.
  • the traditional straight-liquid water-based ballpoint pens are designed with a cap-pulling seal.
  • the pen cap is easy to lose, and once the pen cap is sealed and leaks, the product is very easy to dry ink and leak ink.
  • the snap-action straight-liquid water-based ballpoint pen because of its snap-action structure, does not require a cap, which can solve the above-mentioned hidden dangers and problems.
  • Chinese patent CN200780033045.7 discloses a writing instrument, which is also a push-to-liquid type writing pen. Its internal ink guide core is a split structure, the built-in spring acts on the ink guide core, and the ink guide core then withstands the tip of the pen.
  • the writing ball solves the problem of ink volatilization or ink leakage through the seal formed between the writing ball and the inner edge of the nib.
  • the disadvantage is that once the assembly is poor or the water diversion core is poorly processed, the spring force will be lost, resulting in insufficient sealing force of the writing ball.
  • the ink guide core will bear against the side 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 tip will be skewed , resulting in seal failure, and then the problem of ink volatilization or ink leakage.
  • the present invention proposes a push-to-liquid type refill assembly and a writing pen.
  • the refill assembly directly exerts a force on the ball part through an elastic member, so that the ball part can be close to the ink outlet end.
  • the inner wall forms a contact seal to avoid ink volatilization and ink leakage.
  • the present invention adopts the following technical scheme to realize:
  • the present invention provides a push-to-liquid type refill assembly comprising:
  • an ink cartridge assembly which is provided with an ink core
  • the pen head is arranged at one end of the ink cartridge assembly, the inside of the pen head is formed with a through ink flow channel, the ink outlet end of the ink flow channel is provided with a ball part, and the ink guiding core has a part that penetrates through it. In the ink flow channel, one end of the ink guiding core abuts against the ball portion;
  • An elastic member is sleeved on the outer periphery of the ink-inducing core and is located in the ink flow channel, the elastic member abuts against the ball part to apply a pressure to make the ball part abut against the ink outlet end The force of the inner wall.
  • the elastic member is a conical spring, and one end of the conical spring is gradually reduced in diameter toward the direction close to the ball portion.
  • the ink guiding core includes an upper section of the ink guiding core and a lower section of the ink guiding core, the diameter of the upper section of the ink guiding core is larger than the diameter of the lower section of the ink guiding core, and the upper section of the ink guiding core is larger than that of the lower section of the ink guiding core.
  • a stepped portion is formed between the lower section of the ink-inducing core, one end of the conical spring abuts against the ball portion, and the other end of the conical spring abuts against the stepped portion.
  • the ball portion includes a ball, one end of the conical spring abuts against the ball, and one end of the ink-inducing core abuts against the ball.
  • the ball portion includes an upper ball and a lower ball, the upper ball abuts against the lower ball, and the conical spring abuts against the upper ball, so One end of the ink core is abutted against the upper ball.
  • the ink cartridge assembly includes an ink cartridge, a regulator, a first connector, and a second connector;
  • the regulator is arranged in the ink cartridge, and a first through hole is formed in the regulator;
  • the first connecting piece includes a hollow straight cylindrical portion, the outer side of the straight cylindrical portion is provided with a first convex ring portion along its circumferential direction, the ink cartridge is sleeved on the outer periphery of the straight cylindrical portion, and one end of the ink cartridge is abutting against the first convex ring portion, and one end of the adjuster is inserted into the interior of the first connector;
  • a second through hole is formed inside the second connecting piece, a second convex ring portion and a third convex ring portion are arranged on the outer side of the second connecting piece along the circumferential direction thereof, and one end of the second connecting piece is inserted into the second connecting piece. being arranged in the first through hole, one end of the adjuster abuts against the second convex ring portion, and one end of the first connecting piece abuts against the third convex ring portion;
  • One end of the pen tip is inserted into the second through hole
  • the first through hole, the second through hole, and the ink flow channel are coaxial and communicated, and the ink guiding core penetrates the first through hole, the second through hole, and the ink flow aisle.
  • the first connecting member or the second connecting member is provided with a vent.
  • the straight cylindrical portion is provided with a ventilation groove along its circumferential direction.
  • At least one first protruding portion is provided on the inner peripheral wall of the ink flow channel, and the first protruding portion abuts against the ink guiding core;
  • At least one second protruding portion is provided on the inner peripheral wall of the second through hole, and the second protruding portion abuts against the ink guiding core;
  • the upper end of the ink guiding core is in interference fit with the first through hole.
  • the present invention also provides a writing pen, comprising the above-mentioned push-to-liquid type refill assembly.
  • the elastic member directly exerts force on the ball part, so that the ball part can abut against the inner wall of the ink outlet end, and the ball part and the inner wall of the ink outlet end will form a Contact seal to avoid ink volatilization and ink leakage.
  • 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 components such as the ink core, and the sealing effect is better and more reliable.
  • FIG. 1 is a schematic structural diagram of a push-to-liquid type refill assembly according to an embodiment
  • FIG. 2 is an exploded view of a push-to-liquid type refill assembly according to an embodiment
  • FIG. 3 is a cross-sectional view of a push-to-liquid type refill assembly according to an embodiment
  • Fig. 4 is an enlarged view of part A in Fig. 3;
  • Fig. 5 is the enlarged view of A part in Fig. 3 under another embodiment
  • FIG. 6 is a schematic structural diagram of a first connector according to an embodiment
  • FIG. 7 is a schematic structural diagram 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 pen tip according to an embodiment.
  • 100-ink cartridge assembly 110-ink cartridge, 120-regulator, 121-first through hole, 130-first connecting piece, 131-straight cylinder part, 132-first convex ring part, 133-vent port, 134- Ventilation 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 core, 151-lead
  • 200-pen head 210-ink flow channel, 211-ink outlet, 220-first protruding part, 230-ball part, 231-upper ball, 232-lower ball;
  • the push-to-liquid type refill assembly in this embodiment mainly includes an ink cartridge assembly 100 , a pen tip 200 and an elastic member 300 and other parts.
  • the ink cartridge assembly 100 is provided with an ink guiding core 150.
  • the ink cartridge assembly 100 is used for storing and guiding ink, and guiding the ink to the pen head 200 for writing.
  • the pen head 200 is disposed at one end of the ink cartridge assembly 100 , and a through ink flow channel 210 is formed inside the pen head 200 .
  • the ink outlet end of the ink flow channel 210 is provided with a ball portion 230 , and the ink core 150 has a part of the ink flow channel 210 penetrating through it. , one end of the ink core 150 abuts against the ball portion 230 .
  • the ink cartridge assembly 100 guides the ink into the ink flow channel 210 and reaches the ball part 230, and uses the ball part 230 to shear and roll the ink to achieve a smooth ink discharge effect.
  • the elastic member 300 is sleeved on the outer periphery of the ink-inducing core 150 and is located in the ink flow channel 210 . of the force.
  • the elastic member 300 directly exerts a force on 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 will be formed between the ball portion 230 and the inner wall of the ink outlet end 211, thereby avoiding ink Evaporation and ink leakage.
  • the elastic member 300 directly acts on the ball portion 230, the sealing effect of the ball portion 230 is not affected by the processing or assembly deviation of other components such as the ink core, and the sealing effect is better and more reliable.
  • the elastic member 300 is a conical spring 310 , and one end of the conical spring 310 is gradually reduced in diameter toward the direction close to the ball portion 230 , that is, the conical spring 310 is conical of conical springs.
  • the conical conical spring 310, the upper large diameter section is convenient for the sleeve connection with the ink core 150, and the lower small diameter section is convenient for abutting with the ball part 230, avoiding the conical spring
  • the diameter of the end portion 310 is too large to affect the abutment reliability with the ball portion 230 .
  • the ink-inducing core 150 includes an upper section 151 of the ink-inducing core and a lower section 152 of the ink-inducing core, the diameter of the upper section 151 of the ink-inducing core is larger than the diameter of the lower section 152 of the ink-inducing core, and the upper section 151 and the Steps 153 are formed between the lower segments 152 of the ink core.
  • One end of the conical spring 310 abuts against the ball portion 230
  • the other end of the conical spring 310 abuts against the step portion 153 .
  • the integrated structure of the ink core 150 is simple in structure and easy to assemble.
  • the stepped portion 153 acts as a limiter for the conical spring 310, confines the conical spring 310 in the ink flow channel 210, and improves the resistance of the conical spring 310 to the balls.
  • the material of the ink core 150 includes, but is not limited to, polymethyl methacrylate fiber, polyester fiber, polypropylene fiber, nylon fiber, POM microporous structure, and a composite of the above-mentioned fibers.
  • the ball part 230 is a ball. Referring to FIG. 4 , one end of the conical spring 310 abuts against the ball, and one end of the ink core 150 abuts against the ball.
  • the end shape 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 seal between the ball and the inner wall of the ink flow channel 210 is more reliable.
  • the ink cartridge assembly 100 includes an ink cartridge 110 , a regulator 120 , a first connecting member 30 and a second connecting member 140 .
  • the ink cartridge 110 is a hollow cylindrical structure for storing ink, and one end of the ink cartridge 110 is open to facilitate installation of other components.
  • the regulator 120 is arranged in the ink cartridge 110.
  • the regulator 120 has the functions of attracting ink, removing ink, and hanging ink.
  • the specific structure of the regulator 120 is not the focus of this application and will not be described in detail.
  • a first through hole 121 is formed inside the regulator 120 .
  • the first connecting member 130 includes a hollow straight cylindrical portion 131 , and an outer side of the straight cylindrical portion 131 is provided with a first convex ring portion 132 along the circumferential direction thereof.
  • the ink cartridge 110 is sleeved on the outer 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 regulator 120 is inserted into the first connecting member 130 .
  • a second through hole 141 is formed inside the second connecting member 140 , and a second convex ring portion 142 and a third convex ring portion 143 are provided on the outer side of the second connecting member 140 along its circumferential direction.
  • 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 144
  • One end of the pen tip 200 is inserted into the second through hole 141 .
  • the ink cartridge assembly 100 in this embodiment has fewer components, and the structures of the components are very simple, the cost is low, and the assembly is not prone to errors, which is convenient for production and assembly.
  • the regulator 120 , the first connector 130 , the second connector 140 and the pen tip 200 are assembled into one body, they form a relatively reliable and stable one through the plug-fit, abutment and other structures with each other. structure.
  • the first through hole 121 , the second through hole 141 , and the ink flow channel 210 are coaxial and in communication, and the ink guiding core 150 penetrates through the first through hole 121 , the second through hole 141 , and the ink flow channel 210 .
  • the integrated structure of the ink core 150 can be installed by directly passing through it.
  • the fixing of the ink guiding core 150 is improved.
  • At least one first protruding portion 220 is provided on the inner peripheral wall of the ink flow channel 210 .
  • the ink cores 150 abut against each other to achieve clamping and fixing of the ink cores 150 .
  • At least one second protruding portion 144 is provided on the inner peripheral wall of the second through hole 141 , and the second protruding portion 144 abuts against the ink-inducing core 150 to further improve the ink-inducing effect.
  • the clamping of the core 150 is fixed.
  • This embodiment does not specifically limit the number, arrangement form, and processing form of the first protruding portion 220 and the second protruding portion 144 .
  • the inner peripheral wall of the ink flow channel 210 is dotted to form the first protrusions 220 , and three first protrusions 220 may be uniformly arranged in the circumferential direction.
  • a part of the second protruding parts 144 is provided at the upper position of the second through hole 141 and arranged at intervals along the circumferential direction, and another part of the second protruding part 144 is provided at the position close to the second through hole 141 . intermediate and circumferentially spaced.
  • the second protruding portion 144 disposed on the top is formed by spotting after the injection molding process of the second connecting member 140 is completed.
  • the second protruding portion 144 disposed in the middle is injection-molded together with the second connecting member 140 .
  • first protruding portion 220 and the second protruding portion 144 can also be a rib structure, which can also achieve a clamping and fixing effect on the ink guiding core 150 .
  • the upper end of the ink guiding core 150 is in an interference fit with the first through hole 121 , which further fixes the ink guiding core 150 .
  • the upper, middle and lower fixing functions of the ink-inducing core 150 are formed, which greatly improves the performance of the ink-inducing core 150 .
  • the stability ensures that the ink guiding core 150 will not move in various destructive environments, and will not cause poor contact between the ink guiding core 150 and the ball portion 230 , and will not affect the ink supply effect of the ink guiding core 150 .
  • the first connector 130 is provided with a vent 133 , whose main function is to ensure the balance of internal and external pressures, ensure the effect of ink discharge, and avoid dry ink and exposed ink. If the ventilation is too smooth, it will cause the ink to volatilize easily, resulting in dry ink; if the ventilation is too small, it cannot ensure the smoothness of the internal regulator to draw the ink, which will cause insufficient ink supply, or unbalanced internal and external pressure, resulting in ink leakage.
  • the ventilation port 133 may also be provided on the second connecting member 140 (not shown), which can achieve the same effect as described above.
  • the outer peripheral wall of the straight cylinder portion 131 of the first connecting member 130 is provided with a ventilation groove 134 along its circumferential direction.
  • the ventilation groove 134 helps to reduce the volatilization of the ink and delay the drying of the ink. .
  • the ventilation grooves 134 can be a plurality of annular grooves arranged at intervals, and the adjacent annular grooves are communicated through gaps; the ventilation grooves 134 can also be spiral grooves body structure.
  • the difference between the second embodiment and the first embodiment is the arrangement of the ball portion 230 , and other structures are the same, so only the ball portion 230 will be described in detail below.
  • the ball part 230 is a double ball structure, including an upper ball 231 and a lower ball 232, the upper ball 231 abuts against the lower ball 232, and the conical spring 310 and the upper ball 231 abuts, and the ink core 150 abuts 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 transmission, so that a contact seal is formed between the lower ball 232 and the inner wall of the ink flow channel 210 to avoid ink Evaporation and ink leakage.
  • the conical spring 310 bears against the upper ball 231. Regardless of the quality of the cooperation between the conical spring 310 and the upper ball 231, the upper ball 231 always bears 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 feel is very smooth.
  • This embodiment provides a writing pen, which includes the pressing and straight liquid type refill assembly disclosed in the first and second embodiments.

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Abstract

公开了一种揿动直液式笔芯组件及书写笔，笔芯组件包括墨水筒组件（100）、笔头（200）以及弹性件（300）；墨水筒组件内设有引墨芯（150）；笔头设于墨水筒组件的一端，笔头的内部形成有贯通的流墨通道（210），流墨通道的出墨端设有球珠部（230），引墨芯部分贯穿流墨通道，引墨芯的一端与球珠部抵靠；弹性件套设于引墨芯的外周并位于流墨通道内，弹性件与球珠部抵靠以施加使球珠部紧靠出墨端的内壁的作用力，使球珠部与出墨端的内壁之间形成接触密封，避免墨水挥发和漏墨。

Description

揿动直液式笔芯组件及书写笔 技术领域
本发明涉及文具技术领域，尤其涉及一种揿动直液式笔芯组件及书写笔。
 背景技术
传统的直液式水性圆珠笔，与中性笔相比较，存在书写长度长（普通中性笔的3-5倍）、下墨均匀、手感流畅等优点。但是由于采用的是水性墨水，易挥发干涸，所以传统的直液式水性圆珠笔均采用拔帽式密封设计。笔帽存在容易丢失的问题，而且一旦笔帽有密封漏气时，产品极易干墨、漏墨。而揿动式直液式水性圆珠笔，由于是揿动式结构，不需要笔帽，可以解决上述隐患和问题。
中国专利CN200780033045.7公开了一种书写工具，其也是一种揿动直液式书写笔，其内部墨水引导芯为分体式结构，内置弹簧作用于墨水引导芯，墨水引导芯再顶住笔尖的书写球，通过书写球与笔尖的内缘之间形成的密封来解决墨水挥发或漏墨的问题。其缺点是，一旦组装不良或引水芯加工不良，弹簧作用力就会有损失，造成书写球密封力不足。换言之，一旦墨水引导芯磨损、或加工偏一点、或装配偏一点，墨水引导芯在弹簧的作用下就会顶住书写球的侧面，书写球与笔尖内缘之间形成的密封力就会歪斜，导致密封失效，进而出现墨水挥发或漏墨的问题。
本背景技术所公开的上述信息仅仅用于增加对本申请背景技术的理解，因此，其可能包括不构成本领域普通技术人员已知的现有技术。
 技术解决方案
针对背景技术中指出的问题，本发明提出一种揿动直液式笔芯组件及书写笔，笔芯组件通过弹性件直接向球珠部施加作用力，使球珠部能够紧靠出墨端的内壁而形成接触密封，避免墨水挥发和漏墨。
为实现上述发明目的，本发明采用下述技术方案予以实现：
本发明提供一种揿动直液式笔芯组件包括：
墨水筒组件，其内设有引墨芯；
笔头，其设于所述墨水筒组件的一端，所述笔头的内部形成有贯通的流墨通道，所述流墨通道的出墨端设有球珠部，所述引墨芯具有部分贯穿所述流墨通道，所述引墨芯的一端与所述球珠部抵靠；
弹性件，其套设于所述引墨芯的外周并位于所述流墨通道内，所述弹性件与所述球珠部抵靠以施加使所述球珠部紧靠所述出墨端的内壁的作用力。
本申请一些实施例中，所述弹性件为锥形弹簧，所述锥形弹簧的一端朝靠近所述球珠部的方向，直径逐渐减小。
本申请一些实施例中，所述引墨芯包括一体结构的引墨芯上段和引墨芯下段，所述引墨芯上段的直径大于所述引墨芯下段的直径，所述引墨芯上段与所述引墨芯下段之间形成有台阶部，所述锥形弹簧的一端与所述球珠部抵靠，所述锥形弹簧的另一端与所述台阶部抵靠。
本申请一些实施例中，所述球珠部包括一个球珠，所述锥形弹簧的一端与所述球珠抵靠，所述引墨芯的一端与所述球珠抵靠。
本申请一些实施例中，所述球珠部包括上球珠和下球珠，所述上球珠与所述下球珠抵靠，所述锥形弹簧与所述上球珠抵靠，所述引墨芯的一端与所述上球珠抵靠。
本申请一些实施例中，所述墨水筒组件包括墨水筒、调节器、第一连接件以及第二连接件；
所述调节器设于所述墨水筒内，所述调节器的内部形成有第一通孔；
所述第一连接件包括中空的直筒部，所述直筒部的外侧沿其圆周方向设有第一凸环部，所述墨水筒套设于所述直筒部的外周，所述墨水筒的一端与所述第一凸环部抵靠，所述调节器的一端插设于所述第一连接件的内部；
所述第二连接件的内部形成有第二通孔，所述第二连接件的外侧沿其圆周方向设有第二凸环部和第三凸环部，所述第二连接件的一端插设于所述第一通孔内，所述调节器的一端与所述第二凸环部抵靠，所述第一连接件的一端与所述第三凸环部抵靠；
所述笔头的一端插设于所述第二通孔内；
所述第一通孔、所述第二通孔、以及所述流墨通道同轴且连通，所述引墨芯贯穿所述第一通孔、所述第二通孔、以及所述流墨通道。
本申请一些实施例中，所述第一连接件或所述第二连接件上设有通气口。
本申请一些实施例中，所述直筒部沿其周向方向上设有通气槽。
本申请一些实施例中，所述流墨通道的内周壁上设有至少一个第一凸出部，所述第一凸出部与所述引墨芯抵靠；
所述第二通孔的内周壁上设有至少一个第二凸出部，所述第二凸出部与所述引墨芯抵靠；
所述引墨芯的上端与所述第一通孔过盈配合。
本发明还提供一种书写笔，包括如上所述的揿动直液式笔芯组件。
 有益效果
与现有技术相比，本发明的优点和积极效果是：
本申请所公开的揿动直液式笔芯组件中，弹性件直接向球珠部施加作用力，使球珠部能够紧靠出墨端的内壁，球珠部与出墨端的内壁之间将形成接触式密封，进而避免墨水挥发和漏墨。弹性件直接作用于球珠部，球珠部的密封效果不受引墨芯等其他部件的加工或装配偏差的影响，密封效果更佳可靠。
结合附图阅读本发明的具体实施方式后，本发明的其他特点和优点将变得更加清楚。
 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为根据实施例的揿动直液式笔芯组件的结构示意图；
图2为根据实施例的揿动直液式笔芯组件的爆炸图；
图3为根据实施例的揿动直液式笔芯组件的剖视图；
图4为图3中A部放大图；
图5为图3中A部在另一实施例下的放大图；
图6为根据实施例的第一连接件的结构示意图；
图7为根据实施例的第二连接件的结构示意图；
图8为根据实施例的第二连接件的剖视图；
图9为根据实施例的笔头的剖视图。
附图标记：
100-墨水筒组件，110-墨水筒，120-调节器，121-第一通孔，130-第一连接件，131-直筒部，132-第一凸环部，133-通气口，134-通气槽，140-第二连接件，141-第二通孔，142-第二凸环部，143-第三凸环部，144-第二凸出部，150-引墨芯，151-引墨芯上段，152-引墨芯下段，153-台阶部；
200-笔头，210-流墨通道，211-出墨端，220-第一凸出部，230-球珠部，231-上球珠，232-下球珠；
300-弹性件，310-锥形弹簧。
 本发明的实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明的是，在本发明的描述中，术语“上”、“下”、“左”、“右”、“竖”、“横”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系，这仅仅是为了便于描述，而不是指示或暗示所述装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
实施例一
参照图1至图3，本实施例中的揿动直液式笔芯组件主要包括墨水筒组件100、笔头200以及弹性件300等部分。
墨水筒组件100内设有引墨芯150，墨水筒组件100用于储墨和引墨，将墨水引至笔头200处以供书写。
笔头200设于墨水筒组件100的一端，笔头200的内部形成有贯通的流墨通道210，流墨通道210的出墨端设有球珠部230，引墨芯150具有部分贯穿流墨通道210，引墨芯150的一端与球珠部230抵靠。墨水筒组件100将墨水引至流墨通道210内并到达球珠部230，利用球珠部230对墨水的剪切滚动，实现流畅的出墨效果。
再结合图4，弹性件300套设于引墨芯150的外周并位于流墨通道210内，弹性件300与球珠部230抵靠以施加使球珠部230紧靠出墨端211的内壁的作用力。
弹性件300直接向球珠部230施加作用力，使球珠部230能够紧靠出墨端211的内壁，球珠部230与出墨端211的内壁之间将形成接触式密封，进而避免墨水挥发和漏墨。
弹性件300直接作用于球珠部230，球珠部230的密封效果不受引墨芯等其他部件的加工或装配偏差的影响，密封效果更佳可靠。
本申请一些实施例中，参照图2，弹性件300为锥形弹簧310，锥形弹簧310的一端朝靠近球珠部230的方向，直径逐渐减小，也即，锥形弹簧310为锥形的锥形弹簧。锥形的锥形弹簧310，上部的大直径段部分便于与引墨芯150之间的套设连接，下部的小直径段部分又便于与球珠部230之间的抵靠，避免锥形弹簧310的端部直径过大而影响与球珠部230之间的抵靠可靠性。
本申请一些实施例中，引墨芯150包括一体结构的引墨芯上段151和引墨芯下段152，引墨芯上段151的直径大于引墨芯下段152的直径，引墨芯上段151与引墨芯下段152之间形成有台阶部153。锥形弹簧310的一端与球珠部230抵靠，锥形弹簧310的另一端与台阶部153抵靠。
引墨芯150的一体式结构结构简单、便于组装，台阶部153对锥形弹簧310起到限位的作用，将锥形弹簧310限位于流墨通道210内，提高锥形弹簧310对球珠部230的抵靠作用。
引墨芯150的材质包括但不限于聚甲基丙烯酸甲酯纤维、聚酯纤维、聚丙烯纤维、尼龙纤维、POM微孔结构以及上述几种纤维的复合体等。
本实施例中，球珠部230为一个球珠，参照图4，锥形弹簧310的一端与球珠抵靠，引墨芯150的一端与球珠抵靠。
锥形弹簧310的端部形状为环形，环形端部结构作用于球珠，使得球珠周向受力均匀，球珠与流墨通道210的内壁之间的接触密封更加可靠。
本申请一些实施例中，参照图1至图3，墨水筒组件100包括墨水筒110、调节器120、第一连接件30以及第二连接件140。
墨水筒110为中空筒状结构，用于储墨，墨水筒110的一端为开口状，以便于安装其他部件。
调节器120设于墨水筒110内，调节器120具有引墨、疏墨以及挂墨等作用，调节器120的具体结构不作为本申请的重点，不做详述。调节器120的内部形成有第一通孔121。
参照图6，第一连接件130包括中空的直筒部131，直筒部131的外侧沿其圆周方向设有第一凸环部132。墨水筒110套设于直筒部131的外周，墨水筒110的一端与第一凸环部132抵靠，调节器120的一端插设于第一连接件130的内部。
参照图7和图8，第二连接件140的内部形成有第二通孔141，第二连接件140的外侧沿其圆周方向设有第二凸环部142和第三凸环部143。第二连接件140的一端插设于第一通孔121内，调节器120的一端与第二凸环部142抵靠，第一连接件130的一端与第三凸环部144抵靠
笔头200的一端插设于第二通孔141内。
从图3可以看出，本实施例中墨水筒组件100的组成部件较少，并且各部件结构非常简单，成本较低，组装不易出错，利于生产组装。墨水筒110、调节器120、第一连接件130、第二连接件140以及笔头200组装为一体后，通过彼此之间的插接配合、抵靠限位等结构，形成较为可靠、稳固的一体结构。
第一通孔121、第二通孔141、以及流墨通道210同轴且连通，引墨芯150贯穿第一通孔121、第二通孔141、以及流墨通道210。引墨芯150的一体结构，直接穿设即可完成安装。
本申请一些实施例中，对引墨芯150的固定进行了改进。
具体的，参照图3和图9，流墨通道210的内周壁上设有至少一个第一凸出部220，第一凸出部220靠近笔头200的上端设置，第一凸出部220与引墨芯150抵靠，实现对引墨芯150的夹持固定。
参照图8，第二连接件140中，第二通孔141的内周壁上设有至少一个第二凸出部144，第二凸出部144与引墨芯150抵靠，进一步提高对引墨芯150的夹持固定。
本实施例对第一凸出部220、第二凸出部144的数量、布置形式、以及加工形式等不做具体限制。
比如，在一些实施例中，笔头200注塑加工完成后，在流墨通道210的内周壁上打点形成第一凸出部220，第一凸出部220可沿周向均匀设置3个。
对于第二连接件140而言，一部分第二凸出部144设于第二通孔141靠上的位置并沿周向间隔布置，另一部分第二凸出部144设于第二通孔141靠中间的位置并沿周向间隔布置。靠上设置的第二凸出部144为在第二连接件140注塑加工完成后打点形成。靠中设置的第二凸出部144为与第二连接件140一起注塑成型。
在其他实施例中，第一凸出部220和第二凸出部144也可以为卡筋结构，同样能够实现对引墨芯150的夹持固定作用。
引墨芯150的上端与第一通孔121过盈配合，进一步对引墨芯150起到固定。
本实施例通过第一凸出部220、第二凸出部144以及第一通孔121的过盈配合，形成引墨芯150的上、中、下三重固定作用，大大提高引墨芯150的稳固性，保证引墨芯150在各种破坏环境中都不会移动位置，不会造成引墨芯150与球珠部230的接触不良，不会影响引墨芯150的供墨效果。
本申请一些实施例中，参照图1和图6，第一连接件130上设有通气口133，其主要作用是保证内外压力平衡，保证出墨效果，避免干墨、露墨等。如果通气太顺畅，会造成墨水容易挥发，造成干墨；通气太小，不能保证内部调节器引墨的顺畅，会造成墨水供墨不足，或内部外压力不平衡，造成漏墨。
在其他一些实施例中，通气口133也可以设置在第二连接件140上（未图示），能够达到上述同样的效果。
本申请一些实施例中，参照图6，第一连接件130的直筒部131的外周壁上，沿其周向方向上设有通气槽134，通气槽134有助于减轻墨水挥发，延缓干墨。
本实施例对通气槽134的具体结构形式不做限制，比如，通气槽134可以为间隔设置的多个环形槽，相邻的环形槽之间通过缺口连通；通气槽134也可以为螺旋状槽体结构。
实施例二
实施例二与实施例一的不同之处在于球珠部230的设置，其他结构相同，所以下文仅对球珠部230进行详述。
实施例二中，参照图5，球珠部230为双球珠结构，包括上球珠231和下球珠232，上球珠231与下球珠232抵靠，锥形弹簧310与上球珠231抵靠，引墨芯150与上球珠231抵靠。
锥形弹簧310直接作用于上球珠231，上球珠231又直接作用于下球珠232，形成力的传导，使下球珠232与流墨通道210的内壁之间形成接触密封，避免墨水挥发和漏墨。
锥形弹簧310顶住上球珠231，不管锥形弹簧310与上球珠231之间配合的好坏，上球珠231永远都是中心顶住下球珠232，有助于提高密封效果。
双球珠结构的摩擦力非常小，书写手感非常顺滑。
实施例三
本实施例提供一种书写笔，该书写笔包括实施例一和实施例二所公开的揿动直液式笔芯组件。
最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims (10)

  1. 一种揿动直液式笔芯组件，其特征在于，包括：
    墨水筒组件，其内设有引墨芯；
    笔头，其设于所述墨水筒组件的一端，所述笔头的内部形成有贯通的流墨通道，所述流墨通道的出墨端设有球珠部，所述引墨芯具有部分贯穿所述流墨通道，所述引墨芯的一端与所述球珠部抵靠；
    弹性件，其套设于所述引墨芯的外周并位于所述流墨通道内，所述弹性件与所述球珠部抵靠以施加使所述球珠部紧靠所述出墨端的内壁的作用力。
  2. 根据权利要求1所述的揿动直液式笔芯组件，其特征在于，
    所述弹性件为锥形弹簧，所述锥形弹簧的一端朝靠近所述球珠部的方向，直径逐渐减小。
  3. 根据权利要求2所述的揿动直液式笔芯组件，其特征在于，
    所述引墨芯包括一体结构的引墨芯上段和引墨芯下段，所述引墨芯上段的直径大于所述引墨芯下段的直径，所述引墨芯上段与所述引墨芯下段之间形成有台阶部，所述锥形弹簧的一端与所述球珠部抵靠，所述锥形弹簧的另一端与所述台阶部抵靠。
  4. 根据权利要求2所述的揿动直液式笔芯组件，其特征在于，
    所述球珠部包括一个球珠，所述锥形弹簧的一端与所述球珠抵靠，所述引墨芯的一端与所述球珠抵靠。
  5. 根据权利要求2所述的揿动直液式笔芯组件，其特征在于，
    所述球珠部包括上球珠和下球珠，所述上球珠与所述下球珠抵靠，所述锥形弹簧与所述上球珠抵靠，所述引墨芯的一端与所述上球珠抵靠。
  6. 根据权利要求4或5所述的揿动直液式笔芯组件，其特征在于，
    所述墨水筒组件包括墨水筒、调节器、第一连接件以及第二连接件；
    所述调节器设于所述墨水筒内，所述调节器的内部形成有第一通孔；
    所述第一连接件包括中空的直筒部，所述直筒部的外侧沿其圆周方向设有第一凸环部，所述墨水筒套设于所述直筒部的外周，所述墨水筒的一端与所述第一凸环部抵靠，所述调节器的一端插设于所述第一连接件的内部；
    所述第二连接件的内部形成有第二通孔，所述第二连接件的外侧沿其圆周方向设有第二凸环部和第三凸环部，所述第二连接件的一端插设于所述第一通孔内，所述调节器的一端与所述第二凸环部抵靠，所述第一连接件的一端与所述第三凸环部抵靠；
    所述笔头的一端插设于所述第二通孔内；
    所述第一通孔、所述第二通孔、以及所述流墨通道同轴且连通，所述引墨芯贯穿所述第一通孔、所述第二通孔、以及所述流墨通道。
  7. 根据权利要求6所述的揿动直液式笔芯组件，其特征在于，
    所述第一连接件或所述第二连接件上设有通气口。
  8. 根据权利要求6所述的揿动直液式笔芯组件，其特征在于，
    所述直筒部沿其周向方向上设有通气槽。
  9. 根据权利要求6所述的揿动直液式笔芯组件，其特征在于，
    所述流墨通道的内周壁上设有至少一个第一凸出部，所述第一凸出部与所述引墨芯抵靠；
    所述第二通孔的内周壁上设有至少一个第二凸出部，所述第二凸出部与所述引墨芯抵靠；
    所述引墨芯的上端与所述第一通孔过盈配合。
  10. 一种书写笔，其特征在于，包括如权利要求1至9中任一项所述的揿动直液式笔芯组件。
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