Direct liquid type pen ink controller
By designing an air guide groove in the direct-liquid pen ink controller and using a water-conducting core and pen tip made of specific materials, the problem of ink dispensing difficulties or leakage caused by improper assembly of the ink controller and pen barrel was solved, achieving smooth ink dispensing and low-cost production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CIXI RUOLI STATIONERY CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-21
AI Technical Summary
Improper assembly between the ink controller and the pen barrel in existing direct-liquid ink pens can lead to problems such as difficulty in ink dispensing or ink leakage, resulting in a poor user experience.
Design a direct-liquid pen ink dispenser, comprising a body, a core, and a pen tip. An air guide groove is provided on the inner wall to balance the pressure and prevent air from being drawn through the gap between the inner wall of the pen barrel and the body. The core and pen tip are made of nylon fiber, combined with a body made of PP or ABS plastic to ensure smooth ink flow.
It achieves smooth ink output, avoiding ink output difficulties or leakage problems caused by excessively tight or loose fit, improving the user experience and reducing production costs.
Smart Images
Figure CN224145654U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of direct liquid pen technology, and more specifically, to a direct liquid pen ink controller. 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 contains ink, and there is a gap between the ink controller and the inner wall of the pen barrel for air intake. When writing, the ink in the pen barrel is expelled through the pen tip and remains on the paper, reducing the pressure inside 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 inside the pen barrel, ensuring that the pen tip continues to dispense ink. However, the assembly process between some existing ink controllers and pen barrels does not meet the requirements, resulting in the following... Problems: 1. The ink controller and the inner wall of the pen barrel are fitted too tightly, making it difficult for air to enter the pen barrel through the gap, resulting in ink flow difficulties; 2. The ink controller and the inner wall of the pen barrel are fitted too loosely, allowing too much air to enter the pen barrel through the gap, causing ink inside the pen barrel to easily leak directly to the outside through the gap; 3. When the pen is dropped or impacted, the ink controller or pen barrel may deform, and the fitting gap between the ink controller and the pen barrel may also change, resulting in problems of fitting too tightly or too loosely, which in turn leads to ink flow difficulties or ink leakage, resulting in a poor user experience. Utility Model Content
[0003] To address at least one of the aforementioned problems, this invention provides a direct-liquid pen ink controller suitable for mounting on the barrel of a direct-liquid pen. The direct-liquid pen ink controller includes a body, an ink core, and a pen tip. The body is fitted tightly into one end of the pen barrel. The pen barrel contains an inner cavity for storing ink. The body contains a channel with an inner wall. The ink core and the pen tip abut against the inner wall. An air guide groove is provided on the inner wall to connect the inner cavity to the outside. This direct-liquid pen ink controller has a simple structure and low production cost. The pressure-balancing air guide groove is located on the body, ensuring smooth airflow and ink delivery. It eliminates the need for airflow through the gap between the inner wall of the pen barrel and the body, avoiding problems such as ink delivery difficulties due to excessive tightness or ink leakage due to excessive looseness, resulting in a superior user experience.
[0004] Optionally, the inner wall includes a first inner wall for abutting the water-guiding core and a second inner wall for abutting the pen tip, and the air guide groove includes a first air guide groove disposed on the first inner wall and a second air guide groove disposed on the second inner wall. The first air guide groove is used to connect the inner cavity and the channel, and the second air guide groove is used to connect the channel and the outside.
[0005] Optionally, both the first air guide groove and the second air guide groove extend along the axial direction of the body.
[0006] Optionally, a hollow mounting guide post is provided at one end of the body near the inner cavity, the water guide core is inserted into the inner side of the mounting guide post, and the first inner wall is formed on the inner side of the mounting guide post.
[0007] Optionally, the mounting guide post is provided with a notch for connecting the first air guide groove and the inner cavity.
[0008] Optionally, a limiting protrusion is provided on the inner wall, and the direction in which the pen tip is inserted into the channel is the installation direction. After the pen tip is installed in place, the pen tip abuts against the limiting protrusion so that the pen tip is limited in the installation direction.
[0009] Optionally, the water-guiding core and the pen tip are both made of nylon fiber, and the body is made of PP plastic or ABS plastic.
[0010] Optionally, the water guide core is disposed at one end of the channel near the inner cavity, and the pen tip is disposed at the end of the channel away from the inner cavity.
[0011] Optionally, the body has an outer side wall, and the pen barrel has an inner side wall, with the outer side wall and the inner side wall being interference-fitted.
[0012] Optionally, the outer side wall is provided with a plurality of annular grooves along the axial direction of the pen barrel, and the pen barrel is made of transparent material.
[0013] Compared to existing technologies, the direct-liquid pen ink controller of this invention has a simple structure and low production cost. The pressure-balancing air guide groove is located on the main body, ensuring smooth airflow and ink output. It eliminates the need for airflow through the gap between the inner wall of the pen barrel and the main body, avoiding problems such as ink difficulty due to overly tight fit and ink leakage due to overly loose fit, resulting in a superior user experience. The mounting guide post has a notch for connecting the first air guide groove and the inner cavity, facilitating the introduction of air from the channel along the first air guide groove and the notch into the inner cavity, improving airflow smoothness and thus ensuring smooth ink output. Both the ink core and the pen tip are made of nylon fiber, which has advantages such as shock resistance, heat resistance, wear resistance, and corrosion resistance, improving the pen's impact resistance and heat resistance. The main body is made of PP plastic or ABS plastic, which is easy to process and has low production cost. It also has good heat resistance, preventing deformation at high temperatures and avoiding problems such as deformation and ink leakage during high-temperature use. Attached Figure Description
[0014] Figure 1 This is a perspective view of the direct-liquid pen ink controller of this utility model;
[0015] Figure 2 Cross-sectional view of the direct liquid pen ink controller of this utility model Figure 1 ;
[0016] Figure 3 Cross-sectional view of the direct liquid pen ink controller of this utility model Figure 2 ;
[0017] Figure 4 This is a schematic diagram of the structure of the direct-liquid pen ink controller body of this utility model;
[0018] Figure 5 This is a half-sectional structural diagram of the direct liquid pen ink controller body of this utility model;
[0019] Figure 6 This is a schematic diagram of the structure of the pen barrel of the direct liquid pen control ink device of this utility model;
[0020] The component names corresponding to the various reference numerals in the figure are as follows: 1 is the pen barrel, 101 is the inner cavity, 102 is the inner side wall, 2 is the body, 201 is the channel, 202 is the inner wall, 2021 is the first inner wall, 2022 is the second inner wall, 203 is the air guide groove, 2031 is the first air guide groove, 2032 is the second air guide groove, 204 is the limiting protrusion, 205 is the outer side wall, 206 is the annular groove, 3 is the water guide core, 4 is the pen tip, 5 is the mounting guide post, and 501 is the notch groove. Detailed Implementation
[0021] 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.
[0022] 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.
[0023] 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.
[0024] See Figures 1-6This utility model provides a direct-liquid pen ink controller, suitable for installation on the barrel 1 of a direct-liquid pen. The direct-liquid pen ink controller includes a body 2, an ink core 3, and a pen tip 4. The body 2 is adapted to be tightly fitted and inserted into one end of the pen barrel 1. The pen barrel 1 has an inner cavity 101 for storing ink, and the body 2 has a channel 201. The ink core 3 is used to slowly draw the ink in the inner cavity 101 into the channel 201. When writing, the ink in the channel is discharged to the outside by the pen tip. The channel 201 has an inner wall 20. 2. Both the ink core 3 and the pen tip 4 abut against the inner wall 202. The inner wall 202 is provided with an air guide groove 203 for connecting the inner cavity 101 and the outside. This utility model of a direct liquid pen ink controller has a simple structure and low production cost. The air guide groove for balancing pressure is set on the main body, which ensures smooth air flow and smooth ink output. There is no need to guide air through the gap between the inner wall of the pen barrel and the main body, avoiding the problems of ink output difficulty due to excessive tightness between the inner wall of the pen barrel and the main body, and ink leakage due to excessive looseness. The user experience is excellent.
[0025] See Figure 2 , Figure 3 and Figure 5 The inner wall 202 includes a first inner wall 2021 for abutting the ink core 3 and a second inner wall 2022 for abutting the pen tip 4. The air guide groove 203 includes a first air guide groove 2031 disposed on the first inner wall 2021 and a second air guide groove 2032 disposed on the second inner wall 2022. The first air guide groove 2031 is used to connect the inner cavity 101 and the channel 201, and the second air guide groove 2032 is used to connect the channel 201 and the outside. The structure is reasonably designed. The first air guide groove 2031 and the second air guide groove 2032 introduce outside air into the inner cavity 101, so that the pressure in the inner cavity 101 is balanced, thereby enabling smooth ink flow when writing. The first air guide groove 2031 and the second air guide groove 2032 both extend along the axial direction of the body 2. The first air guide groove 2031 and the second air guide groove 2032 are easy to process and have low production costs.
[0026] See Figure 1 The main body 2 has a hollow mounting guide post 5 at one end near the inner cavity 101. The water guide core 3 is inserted into the inner side of the mounting guide post 5, and the first inner wall 2021 is formed on the inner side of the mounting guide post 5. The axial length of the first inner wall 2021 is increased by the mounting guide post 5, making the installation of the water guide core 3 more stable.
[0027] See Figures 2-5 The mounting guide post 5 has a notch 501 for connecting the first air guide groove 2031 and the inner cavity 101, which facilitates the air in the channel 201 to be introduced into the inner cavity 101 along the first air guide groove 2031 and the notch 501, thereby improving the smoothness of air guidance and making the ink output smooth.
[0028] See Figure 2 , Figure 3 and Figure 5 A limiting protrusion 204 is provided on the inner wall 202. The direction in which the pen tip 4 is inserted into the channel 201 is the installation direction. (See reference) Figure 2 The installation direction is from bottom to top; after the pen tip 4 is installed in place, the pen tip 4 abuts against the limiting protrusion 204 to limit the pen tip 4 in the installation direction, improve the accuracy of the pen tip 4 installation position, and reduce the assembly difficulty; both the ink core 3 and the pen tip 4 are 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; the body 2 is made of PP plastic or ABS plastic, which is easy to process and has low production cost; it has good heat resistance and is not easily deformed at high temperatures, avoiding problems such as deformation and ink leakage when used at high temperatures.
[0029] See Figure 2 and Figure 3 The ink core 3 is located at one end of the channel 201 near the inner cavity 101, and the pen tip 4 is located at the other end of the channel 201 away from the inner cavity 101. The ink in the inner cavity 101 is slowly drawn out into the channel 201 through the ink core 3. When writing, the ink in the channel is discharged to the outside through the pen tip. The structure is reasonably designed.
[0030] See Figure 2 , Figure 4 , Figure 5 and Figure 6 The main body 2 has an outer side wall 205, and the pen barrel 1 has an inner side wall 102. The outer side wall 205 and the inner side wall 102 are interference-fitted, making it less prone to ink leakage. There is no need to set a gap for air conduction between the outer side wall 205 and the inner side wall 102, so the manufacturing precision requirements of the main body 2 and the pen barrel 1 are low, resulting in low production costs. Multiple annular grooves 206 are set on the outer side wall 205 along the axial direction of the pen barrel 1, which reduces the contact area between the outer side wall 205 and the inner side wall 102, reduces the resistance when the main body 2 is installed into the pen barrel 1, reduces the assembly difficulty, and also reduces consumables. The pen barrel 1 is made of transparent material, so users can see the layers of annular grooves 206 structure, which is more aesthetically pleasing and allows them to observe the ink leakage between the outer side wall 205 and the inner side wall 102 in time. Since ink leakage is generally a little bit, if ink leakage is about to occur, the user can observe it in time and stop using the pen.
[0031] The direct-liquid pen ink controller of this invention features a simple structure and low production cost. The pressure-balancing air guide groove is located on the main body, ensuring smooth airflow and ink output. It eliminates the need for airflow through the gap between the inner wall of the pen barrel and the main body, avoiding problems such as ink flow difficulties due to excessive tightness or ink leakage due to excessive looseness, resulting in a superior user experience. The mounting guide post has a notch for connecting the first air guide groove to the inner cavity, facilitating the introduction of air from the channel along the first air guide groove and the notch into the inner cavity, improving airflow smoothness and thus ensuring smooth ink output. Both the ink core and the pen tip are made of nylon fiber, which offers advantages such as shock resistance, heat resistance, wear resistance, and corrosion resistance, enhancing the pen's impact resistance and heat resistance. The main body is made of PP or ABS plastic, which is easy to process and has low production costs. It also has good heat resistance, preventing deformation at high temperatures and avoiding problems such as deformation and ink leakage during high-temperature use.
[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A liquid direct pen control ink device, adapted to be arranged on a pen barrel (1) of a liquid direct pen, characterized in that, The direct-liquid pen ink controller includes a body (2), an ink core (3), and a pen tip (4). The body (2) is fitted into one end of the pen barrel (1). The pen barrel (1) has an inner cavity (101) for storing ink. The body (2) has a channel (201) with an inner wall (202). The ink core (3) and the pen tip (4) are both in contact with the inner wall (202). The inner wall (202) has an air guide groove (203) for connecting the inner cavity (101) and the outside.
2. The liquid direct pen inking device according to claim 1, wherein, The inner wall (202) includes a first inner wall (2021) for abutting the water core (3) and a second inner wall (2022) for abutting the pen tip (4). The air guide groove (203) includes a first air guide groove (2031) disposed on the first inner wall (2021) and a second air guide groove (2032) disposed on the second inner wall (2022). The first air guide groove (2031) is used to connect the inner cavity (101) and the channel (201), and the second air guide groove (2032) is used to connect the channel (201) and the outside.
3. The liquid direct pen inking device according to claim 2, wherein, Both the first air guide groove (2031) and the second air guide groove (2032) extend along the axial direction of the body (2).
4. The liquid direct pen-operated inker according to claim 2, wherein The main body (2) has a hollow mounting guide post (5) at one end near the inner cavity (101), the water core (3) is inserted into the inner side of the mounting guide post (5), and the first inner wall (2021) is formed on the inner side of the mounting guide post (5).
5. The liquid direct pen inking device of claim 4, wherein, The mounting guide post (5) has a notch (501) for connecting the first air guide groove (2031) and the inner cavity (101).
6. The liquid direct pen inking device of claim 1, wherein, The inner wall (202) is provided with a limiting protrusion (204). The direction in which the pen tip (4) is inserted into the channel (201) is the installation direction. After the pen tip (4) is installed in place, the pen tip (4) abuts against the limiting protrusion (204) so that the pen tip (4) is limited in the installation direction.
7. The liquid direct pen inking device of claim 1, wherein, The water-guiding core (3) and the pen tip (4) are both made of nylon fiber, and the body (2) is made of PP plastic or ABS plastic.
8. The direct-liquid pen ink controller according to claim 1, characterized in that, The water-guiding core (3) is located at one end of the channel (201) near the inner cavity (101), and the pen tip (4) is located at one end of the channel (201) away from the inner cavity (101).
9. The liquid direct pen inking device according to any one of claims 1 to 8, characterized in that, The body (2) is provided with an outer side wall (205), and the pen barrel (1) is provided with an inner side wall (102). The outer side wall (205) and the inner side wall (102) are interference-fitted.
10. The liquid direct pen inking device of claim 9, wherein, The outer wall (205) is provided with a plurality of annular grooves (206) along the axial direction of the pen barrel (1), and the pen barrel (1) is made of transparent material.