Pen core and water diversion core integrated ink controller and direct liquid type pen

By integrating the pen refill and ink cartridge into one unit, and combining them with an air guide groove and mounting post design, the problem of poor ink flow caused by the separation of the ink cartridge and pen tip is solved, reducing production costs and improving writing smoothness.

CN224184002UActive Publication Date: 2026-05-01CIXI RUOLI STATIONERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CIXI RUOLI STATIONERY CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing direct-liquid ink pen has a separate design for the ink core and the pen tip, which is prone to relative displacement, resulting in poor ink flow. In addition, the production process is complicated and the cost is high.

Method used

The pen refill and ink cartridge are integrated into one unit, combined with an air guide groove and mounting post design to ensure a secure connection between the pen refill and ink cartridge. The air guide groove balances the air pressure, enabling stable ink output.

Benefits of technology

It achieves a stable connection between the pen refill and the ink cartridge, reduces production and assembly costs, ensures smooth ink flow, and improves the writing experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of direct liquid type pens, and discloses a refill and ink filler integrated ink controller and a direct liquid type pen, the refill and ink filler integrated ink controller comprises a body and a pen point, one end of the pen point is a writing end, the other end of the pen point is provided with the ink filler, and the ink filler is integrally connected with the pen point. A liquid storage cavity used for storing ink is formed in the pen holder, and the end, away from the pen point, of the ink guiding core is arranged in the liquid storage cavity. When the pen is used, ink in the ink storage cavity is guided to the pen point through the ink guide core. According to the pen refill and water diversion core integrated ink controller, the pen refill and the water diversion core are integrated, the structure is simple, and the production and assembly cost is low; during use, the refill and the ink guide core are integrally connected, so that the refill and the ink guide core cannot be separated, ink can be stably guided out, and writing is smooth; the body is provided with the air guide groove, and the air pressure in the liquid storage cavity is balanced through the air guide groove, so that ink is discharged smoothly.
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Description

An integrated ink controller combining a refill and an ink cartridge, and a direct-flow pen. Technical Field

[0001] This utility model relates to the field of direct-liquid pen technology, specifically to an integrated ink controller that combines a pen core and an ink cartridge, and a direct-liquid pen. Background Technology

[0002] Existing direct-liquid pens refer to writing pens filled with liquid ink, such as some marker pens. Some existing direct-liquid pens include a pen barrel and an ink controller. The inner cavity of the pen barrel is filled with ink, and there is a gap between the ink controller and the inner wall of the pen barrel to allow air to enter. When writing, the ink in the pen barrel is discharged outward through the pen tip and left on the paper, which reduces the pressure in the inner cavity of the pen barrel. At this time, air enters the inner cavity of the pen barrel through the aforementioned gap to balance and increase the pressure in the inner cavity of the pen barrel, so as to ensure that the pen tip continues to dispense ink.

[0003] Some existing direct-ink pens, including the pen barrel, have a reservoir for storing ink. Their ink controller consists of a separate ink core and a pen tip. One end of the ink core is placed inside the reservoir, and the other end rests against the pen tip, guiding the ink from the reservoir to the pen tip for writing. Because of this separate design, the ink core and pen tip are prone to relative displacement during use or in the event of an impact. This can cause the end of the ink core to not rest against the pen tip, preventing the ink from being properly guided to the pen tip. This results in the pen tip failing to dispense ink smoothly and writing properly, leading to a poor user experience. Furthermore, the separate design requires manufacturing two parts separately, increasing production steps and assembly costs. Summary of the Invention

[0004] To address at least one of the aforementioned problems, this utility model provides an integrated ink controller combining a refill and a core, suitable for mounting on the barrel of a direct-ink pen. The integrated ink controller includes a body and a pen tip. One end of the pen tip is the writing end, and the other end is equipped with a core that is integrally connected to the pen tip. The pen barrel contains a reservoir for storing ink, and the end of the core furthest from the pen tip is placed within the reservoir. In use, the core guides the ink from the reservoir to the pen tip. This integrated ink controller combines the refill and core into a single unit, resulting in a simple structure and low production and assembly costs. The integral connection prevents separation, ensuring stable ink flow and smooth writing. An air guide groove on the body balances the air pressure within the reservoir, further ensuring smooth ink flow.

[0005] Optionally, the main body is provided with an installation cavity and an installation groove, the pen tip is placed in the installation cavity, the water guide core is placed inside the installation groove, and the main body is provided with an air guide groove for communicating the liquid storage cavity with the outside. The air guide groove includes a first air guide groove disposed on the inner wall of the installation groove and a second air guide groove disposed on the inner wall of the installation cavity.

[0006] Optionally, the first air guide groove extends along the axial direction of the water guide core, and a hollow mounting guide post is provided at one end of the body near the liquid storage cavity, and the mounting groove is formed on the inner side of the mounting groove.

[0007] Optionally, the mounting guide post is provided with a notch for connecting the first gas guide groove and the liquid storage chamber.

[0008] Optionally, one end of the water-guiding core extends out of the mounting guide post and into the liquid storage chamber.

[0009] Optionally, the second air guide groove extends along the axial direction of the pen tip, and one end of the second air guide groove is provided with a slot that communicates with the outside.

[0010] Optionally, the inner wall of the mounting cavity is provided with positioning protrusions, which extend along the axial direction of the pen tip. The outer wall of the pen tip abuts against the positioning protrusions, and multiple positioning protrusions are arranged in a ring.

[0011] Optionally, the pen tip is provided with a guide bevel in a ring shape corresponding to the positioning protrusion.

[0012] Optionally, the pen barrel includes an outer shell, a first inner shell, and a second inner shell, the first inner shell and the second inner shell being symmetrically arranged inside the outer shell, the liquid storage chamber including a first liquid storage chamber disposed in the first inner shell and a second liquid storage chamber disposed in the second inner shell, the main body having two such chambers respectively connected to the first inner shell and the second inner shell, and the pen tip and the water-guiding core being made of nylon fiber.

[0013] Compared to existing technologies, the integrated ink controller of this utility model combines the pen refill and ink cartridge into one unit, resulting in a simple structure and low production and assembly costs. During use, the pen refill and ink cartridge are connected as a single unit, preventing separation and ensuring stable ink flow for smooth writing. An air guide groove on the main body balances the air pressure within the liquid storage chamber, ensuring smooth ink flow. During use, the first and second air guide grooves facilitate the introduction of outside air into the liquid storage chamber, balancing the pressure and ensuring smooth ink flow during writing. The installation guide post increases the axial length of the mounting groove's inner wall, making the ink cartridge installation more stable and ink flow more consistent. One end of the ink cartridge extends from the installation guide post into the liquid storage chamber, ensuring that one end of the ink cartridge can contact the ink, thus guiding the ink flow.

[0014] In addition, this utility model also provides a direct-liquid pen, which includes the above-mentioned integrated ink controller for the pen refill and the ink core. This direct-liquid pen also has the beneficial effects of the above-mentioned integrated ink controller for the pen refill and the ink core, which will not be described in detail here. Attached Figure Description

[0015] Figure 1 is a perspective view of the integrated ink controller of the pen refill and ink core of this utility model;

[0016] Figure 2 is a cross-sectional view of the integrated ink controller of the pen refill and ink core of this utility model;

[0017] Figure 3 is an enlarged view of part A in Figure 2;

[0018] Figure 4 is a structural schematic diagram of the integrated ink controller of the pen refill and ink core of this utility model;

[0019] Figure 5 is an enlarged view of part B in Figure 4;

[0020] Figure 6 is a structural schematic diagram of the integrated ink controller body of the present invention, which combines the pen refill and the ink core.

[0021] The component names corresponding to the various labels in the figure are as follows: 1 is the pen barrel, 11 is the outer shell, 12 is the first inner shell, 13 is the second inner shell, 101 is the liquid storage chamber, 1011 is the first liquid storage chamber, 1012 is the second liquid storage chamber, 2 is the main body, 201 is the mounting cavity, 2011 is the second air guide groove, 2012 is the groove opening, 2013 is the positioning protrusion, 202 is the mounting groove, 2021 is the first air guide groove, 3 is the pen tip, 301 is the writing end, 302 is the ink core, 303 is the guide slope, 4 is the mounting guide post, 401 is the notch groove, and 5 is the pen cap. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship when the product is in normal use.

[0024] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0025] Referring to Figures 1-6, this embodiment of the invention provides an integrated ink controller combining a refill and an ink core, suitable for mounting on the barrel 1 of a direct-ink pen. The integrated ink controller includes a body 2 and a pen tip 3. One end of the pen tip 3 is a writing end 301, and the other end of the pen tip 3 is provided with an ink core 302, which is integrally connected to the pen tip 3. The pen barrel 1 contains a reservoir 101 for storing ink, and the end of the ink core 302 furthest from the pen tip 3 is placed within the reservoir. Within 101; during use, the ink in the liquid storage chamber 101 is guided to the pen tip 3 through the ink guide core 302; this utility model is an integrated ink controller that combines the pen refill and the ink guide core, which has a simple structure and low production and assembly costs; during use, the pen refill and the ink guide core are connected as a whole, so that the pen refill and the ink guide core will not separate, so that the ink can be stably discharged and writing is smooth; the main body is provided with an air guide groove, which balances the air pressure in the liquid storage chamber, so that the ink can be discharged smoothly.

[0026] Referring to Figures 2-5, the main body 2 is provided with a mounting cavity 201 and a mounting groove 202. The pen tip 3 is placed in the mounting cavity 201, and the ink core 302 is placed inside the mounting groove 202. The main body 2 is provided with an air guide groove for communicating the liquid storage cavity 101 with the outside. The air guide groove includes a first air guide groove 2021 disposed on the inner wall of the mounting groove 202 and a second air guide groove 2011 disposed on the inner wall of the mounting cavity 201. In use, the first air guide groove 2021 and the second air guide groove 2011 facilitate the introduction of outside air into the liquid storage cavity 101, so that the pressure in the liquid storage cavity 101 is balanced, thereby enabling smooth ink flow when writing. If the pressure in the liquid storage cavity 101 cannot be balanced in time during use, it will lead to the problem of unsmooth ink flow.

[0027] Referring to Figures 2-6, the first air guide groove 2021 extends along the axial direction of the water guide core 302. The first air guide groove 2021 is easy to process. A hollow mounting guide post 4 is provided at one end of the body 2 near the liquid storage chamber 101. The mounting groove 202 is formed on the inner side of the mounting groove 202. The water guide core 302 is tightly inserted into the inner side of the mounting guide post 4. The axial length of the inner wall of the mounting groove 202 is increased by the mounting guide post 4, making the installation of the water guide core 302 more stable and the ink output more stable. The mounting guide post 4 is provided with a notch 401 for connecting the first air guide groove 2021 and the liquid storage chamber 101, which facilitates the introduction of air from the first air guide groove 2021 into the liquid storage chamber 101. One end of the water guide core 302 extends out of the mounting guide post 4 and into the liquid storage chamber 101, which can ensure that one end of the water guide core 302 can contact the ink, thereby guiding the ink.

[0028] Referring to Figures 4 and 5, the second air guide groove 2011 extends along the axial direction of the pen tip 3. One end of the second air guide groove 2011 is provided with a slot 2012 that communicates with the outside, so that one end of the second air guide groove 2011 is connected to the outside through the slot 2012, thereby guiding this part of the air to the first air guide groove 2021, and then guiding it into the liquid storage chamber 101 through the first air guide groove 2021 to balance the air pressure in the liquid storage chamber 101.

[0029] Referring to Figures 2-5, the inner wall of the mounting cavity 201 is provided with positioning protrusions 2013. The positioning protrusions 2013 extend along the axial direction of the pen tip 3. The outer wall of the pen tip 3 abuts against the positioning protrusions 2013 for tight fitting and fixation. Multiple positioning protrusions 2013 are arranged in a ring, which has a good positioning effect and makes the pen tip 3 installed firmly. The pen tip 3 is provided with guide slopes 303 in a ring, which correspond to the ends of the positioning protrusions 2013. This facilitates the pen tip 3 to be guided into the preset installation position in the mounting cavity 201 through the guide slopes 303. This avoids the problem that the ends of the positioning protrusions 2013 block the pen tip 3 during installation, which would prevent the pen tip 3 from being installed smoothly in the mounting cavity 201. The structural design is reasonable.

[0030] Referring to Figures 1 and 2, the pen barrel 1 includes an outer shell 11, a first inner shell 12, and a second inner shell 13. The first inner shell 12 and the second inner shell 13 are symmetrically arranged inside the outer shell 11. The liquid storage chamber 101 includes a first liquid storage chamber 1011 disposed within the first inner shell 12 and a second liquid storage chamber 1012 disposed within the second inner shell 13. Two main bodies 2 are provided and connected to the first inner shell 12 and the second inner shell 13 respectively. Two pen tips 3 are symmetrically arranged. The pen barrel 1 includes two liquid storage chambers and a main body 2. It can be filled with ink of different colors in two reservoirs, thus writing two different colors of words, which has a wide range of applications; of course, it can also be filled with ink of the same color, so that when the ink at one end runs out or malfunctions, it can continue writing through the ink at the other end; the pen tip 3 and the ink core 302 are both made of nylon fiber, which has the advantages of shock resistance, heat resistance, wear resistance and corrosion resistance, improving the pen's impact resistance and heat resistance; both ends of the outer shell 11 are provided with detachable pen caps 5 to protect the writing end of the pen tip 3.

[0031] This utility model features an integrated ink controller that combines the pen refill and ink cartridge into a single unit, resulting in a simple structure and low production and assembly costs. During use, the pen refill and ink cartridge are seamlessly connected, preventing separation and ensuring stable ink flow for smooth writing. An air guide groove on the main body balances the air pressure within the liquid storage chamber, further promoting smooth ink flow. During use, the first and second air guide grooves facilitate the introduction of outside air into the liquid storage chamber, balancing the pressure and ensuring smooth ink flow during writing. The installation guide post increases the axial length of the mounting groove's inner wall, making the ink cartridge installation more stable and ink flow more consistent. One end of the ink cartridge extends from the installation guide post into the liquid storage chamber, ensuring that one end of the ink cartridge contacts the ink, thus guiding the ink flow.

[0032] In addition, this utility model also provides a direct-liquid pen, which includes the above-mentioned integrated ink controller for the pen refill and the ink core. This direct-liquid pen also has the beneficial effects of the above-mentioned integrated ink controller for the pen refill and the ink core, which will not be described in detail here.

[0033] In the description of this disclosure, it should be understood that the terms "upper", "lower", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0034] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0036] In this disclosure, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first feature or in indirect contact with the first feature through an intermediate medium.

[0037] It should be noted that when a component is described as being "set on" another component, it can be directly on the other component or there may be an intervening component. When a component is described as "connected to another component," it can be directly connected to the other component or there may be an intervening component. Furthermore, when a component is described as being "fixedly connected" to another component, the connection can be detachable or non-detachable, such as through socketing, snap-fitting, integral molding, welding, etc., which are achievable in conventional technologies and will not be elaborated upon here.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. An integrated ink controller combining a refill and a flow core, suitable for mounting on the barrel (1) of a direct-flow pen, characterized in that, The integrated ink controller for pen refill and ink core includes a body (2) and a pen tip (3). One end of the pen tip (3) is the writing end (301), and the other end of the pen tip (3) is provided with an ink core (302). The ink core (302) is integrally connected to the pen tip (3). The pen barrel (1) is provided with a liquid storage chamber (101) for storing ink. The end of the ink core (302) away from the pen tip (3) is placed in the liquid storage chamber (101). In use, the ink in the liquid storage chamber (101) is guided to the pen tip (3) through the ink core (302).

2. The ink cartridge and conduit integrated ink controller according to claim 1, wherein The main body (2) is provided with an installation cavity (201) and an installation groove (202). The pen tip (3) is placed in the installation cavity (201), and the water guide core (302) is placed inside the installation groove (202). The main body (2) is provided with an air guide groove for communicating the liquid storage cavity (101) with the outside. The air guide groove includes a first air guide groove (2021) disposed on the inner wall of the installation groove (202) and a second air guide groove (2011) disposed on the inner wall of the installation cavity (201).

3. The integrated ink controller combining the pen refill and ink cartridge according to claim 2, characterized in that, The first air guide groove (2021) extends along the axial direction of the water core (302), and a hollow mounting guide post (4) is provided at one end of the body (2) near the liquid storage cavity (101), and the mounting groove (202) is formed on the inner side of the mounting groove (202).

4. The integrated ink controller combining the pen refill and ink cartridge according to claim 3, characterized in that, The mounting guide post (4) has a notch (401) for connecting the first air guide groove (2021) and the liquid storage chamber (101).

5. The ink cartridge and conduit integrated ink controller of claim 3, wherein, One end of the water-guiding core (302) extends out of the mounting guide post (4) and into the liquid storage chamber (101).

6. The integrated ink controller combining the pen refill and the ink cartridge according to claim 2, characterized in that, The second air guide groove (2011) extends along the axial direction of the pen tip (3), and one end of the second air guide groove (2011) is provided with a slot (2012) that communicates with the outside.

7. The integrated ink controller combining the pen refill and ink cartridge according to claim 2, characterized in that, The inner wall of the mounting cavity (201) is provided with a positioning protrusion (2013), which extends along the axial direction of the pen tip (3). The outer wall of the pen tip (3) abuts against the positioning protrusion (2013), and multiple positioning protrusions (2013) are arranged in a ring.

8. The integrated ink controller for pen refill and ink cartridge according to claim 7, characterized in that, The pen tip (3) is provided with a guide slope (303) in a ring shape corresponding to the positioning protrusion (2013).

9. The integrated ink controller combining the pen refill and the ink cartridge according to any one of claims 1-8, characterized in that, The pen barrel (1) includes an outer shell (11), a first inner shell (12) and a second inner shell (13). The first inner shell (12) and the second inner shell (13) are symmetrically arranged inside the outer shell (11). The liquid storage chamber (101) includes a first liquid storage chamber (1011) disposed in the first inner shell (12) and a second liquid storage chamber (1012) disposed in the second inner shell (13). The body (2) has two parts and is respectively connected to the first inner shell (12) and the second inner shell (13). The pen tip (3) and the water core (302) are both made of nylon fiber.

10. A direct-liquid pen, characterized in that, Including the integrated ink controller that combines the pen refill and the ink cartridge as described in any one of claims 1-9.