Direct liquid type writing tool with bright powder

By integrating the pen tip with the ink core and adding protrusions and grooves inside the through-hole to increase the contact area, the problems of glitter clogging and low ink extraction efficiency are solved, achieving stable glitter extraction and continuous writing, and extending the service life.

CN223644535UActive Publication Date: 2025-12-09WENZHOU BOCAI TECH CO LTD
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Patent Information

Application Number
CN202423317543.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-12-09
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

In existing direct-liquid writing instruments, the efficiency of glitter extraction is low and it is prone to clogging, affecting the writing effect. In particular, the water extraction efficiency is low in the regulator-type structure and glitter is prone to accumulate at the connection between the pen tip and the water core.

Method used

The pen tip and ink core are integrated into one unit, combined with an air hole design. Circumferential protrusions and grooves are set in the through hole to increase the contact area between ink and glitter. Capillary action is used to improve ink flow efficiency. The step and gap design stabilizes the ink output. Fixing parts and limit blocks ensure stable installation.

Benefits of technology

It improves the efficiency of glitter extraction, reduces clogging problems, extends service life, ensures writing continuity and stability, and avoids problems of too much or too little ink output.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a direct liquid type writing tool with bright powder, which comprises a pen holder, a pen point arranged at the end part of the pen holder, an adjuster arranged in the pen holder and a water leading core arranged on the adjuster, and an ink storage component is also arranged in the pen holder; the pen point and the ink guide core are integrally arranged, ink and bright powder are contained in the ink storage component, and a through hole used for installing the ink guide core is formed in the adjuster in the axial direction. The scheme can improve the bright powder leading-out efficiency and reduce the problem of bright powder blockage.
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Description

Technical Field

[0001] This utility model relates to writing instruments, specifically a direct-liquid writing instrument with glitter. Background Technology

[0002] Currently, direct-liquid writing instruments are widely used. Among the existing solutions for using direct-liquid writing instruments with ink containing glitter, there are two types: valve type and regulator type.

[0003] The valve-type method is rather cumbersome, requiring the use of a button to press and supply ink to the pen tip. Then, the pen tip is used to write on the paper with the glittery ink. This method cannot write continuously, resulting in a poor user experience.

[0004] The regulator-style ink delivery system relies on capillary action of the ink core to draw ink. However, for direct-ink writing instruments with glitter, this method is inefficient due to the volume of the glitter, leading to problems such as glitter not being drawn out properly. In severe cases, glitter can clog the ink core, preventing ink from flowing and affecting writing quality. While increasing the pore size can mitigate this issue to some extent, current direct-ink writing instruments with glitter typically have a separate nib and ink core. The end of the ink core corresponding to the nib is a pointed tip that inserts into the nib to create ink flow. This insertion method causes radial compression of the nib, shrinking the pores and leading to glitter accumulation at the junction of the nib and ink core, potentially affecting ink flow.

[0005] Therefore, improvements are needed for regulator-type direct-liquid writing instruments with glitter to allow the glitter to be drawn out more smoothly. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a direct liquid writing tool with glitter, which can improve the glitter extraction efficiency and reduce the problem of glitter clogging.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a direct-liquid writing instrument with glitter, comprising a pen barrel, a pen tip installed at the end of the pen barrel, an adjuster disposed within the pen barrel, and a water-guiding core installed on the adjuster; the pen barrel also contains an ink storage component; the pen tip and the water-guiding core are integrally formed, the ink storage component contains ink and glitter, and the adjuster has an axially arranged through hole for installing the water-guiding core.

[0008] As a further improvement of this utility model, the inner wall of one end of the through hole corresponding to the ink storage component is provided with a plurality of protrusions along the circumferential direction. The protrusions extend along the axial direction of the through hole and are used to abut against the side surface of the water-guiding core. A first groove is formed between adjacent protrusions, and the water-guiding core increases the contact area with ink and glitter through the first groove, and forms a channel for ink and glitter to pass through.

[0009] As a further improvement of this utility model, the side of the water-guiding core is provided with a step, and there is a gap between one end of the protrusions corresponding to the step and the step. The first groove formed between adjacent protrusions is open at one end of the step so that ink and glitter can flow to the step of the water-guiding core.

[0010] As a further improvement of this utility model, a fixing member for mounting the pen tip is provided on the pen barrel at the position corresponding to the pen tip. The pen tip is mounted on the fixing member, and the axial movement of the pen tip is restricted by the fixing member.

[0011] As a further improvement of this utility model, a guide slope is provided in the through hole of the regulator. The diameter of the through hole becomes smaller after passing through the guide slope, and the protrusion is located at the position with the smaller diameter in the through hole. There are gaps between the two parts with larger and smaller diameters in the through hole and the water core.

[0012] As a further improvement of this utility model, the inner wall of the fixing member is provided with a snap-fit ​​member corresponding to the position of the pen tip, and the pen tip is provided with a second groove extending circumferentially along the outer surface of the pen tip corresponding to the position of the snap-fit ​​member. The snap-fit ​​member and the second groove cooperate to form a snap-fit. The axial length of the second groove along the pen tip is greater than the axial length of the snap-fit ​​member along the pen tip.

[0013] As a further improvement of this utility model, the end of the water-guiding core corresponding to the ink storage component is configured as a frustum or a cone.

[0014] As a further improvement of this utility model, several of the protrusions are evenly distributed along the circumference of the through hole.

[0015] The beneficial effects of this invention are that it allows the glitter to flow more smoothly, reduces glitter clogging problems, extends service life, and avoids the inability to continue flowing glitter due to glitter clogging, which would result in a short service life. Attached Figure Description

[0016] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the regulator and pen tip of this utility model;

[0018] Figure 3This is a three-dimensional structural diagram of the adjuster and pen tip of this utility model;

[0019] Figure 4 for Figure 2 Enlarged view of part A in the image;

[0020] Figure 5 for Figure 3 Enlarged view of part B in the image.

[0021] Reference numerals: 1. Pen barrel; 2. Pen tip; 3. Adjuster; 31. Through hole; 32. Protrusion; 33. First groove; 34. Guide slope; 4. Ink core; 41. Step; 5. Ink storage component; 6. Fixing component; 71. Snap-fit ​​component; 72. Second groove; 8. Limiting block. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0023] Reference Figure 1-5 As shown,

[0024] A direct-liquid writing instrument with glitter includes a pen barrel 1, a pen tip 2 installed at the end of the pen barrel 1, an adjuster 3 disposed inside the pen barrel 1, and a water inlet 4 installed on the adjuster 3. The pen barrel 1 also has an ink storage component 5. The pen tip 2 and the water inlet 4 are integrally formed. The ink storage component 5 contains ink and glitter. The adjuster 3 has an axial through hole 31 for installing the water inlet 4.

[0025] This solution primarily concerns direct-liquid writing instruments with glitter. The glitter needs to move in conjunction with ink, and after writing on paper, it generally needs to spread out flat, resulting in a sheet-like texture with relatively large particles, making it difficult to flow. While increasing the pore size of the existing ink core 4 and pen tip 2 can improve flow to some extent, blockages will still occur at the connection between the ink core 4 and pen tip 2, affecting usability and causing only ink to flow out after the glitter becomes clogged.

[0026] In this solution, the ink core 4 and the pen tip 2 are integrated into one unit. The size of the pores is also adjusted to transfer the glitter. The flow-blocking effect of the glitter itself prevents excessive ink flow during writing. This also avoids the glitter accumulation and blockage problems that often occur at the connection between the pen tip 2 and the ink core 4 in existing technologies. In other words, by integrating the ink core 4 and the pen tip 2, the glitter transfer problem can be solved by increasing the pore size. Furthermore, the volume characteristics of the glitter itself can be fully utilized to control the ink flow, preventing excessive ink flow and ink dripping under gravity. This effectively improves the writing effect of glitter-based writing instruments without requiring an overly complex structure.

[0027] Meanwhile, in order to stabilize the ink output, the inner wall of the through hole 31 corresponding to one end of the ink storage component 5 is provided with a number of protrusions 32 along the circumferential direction. The protrusions 32 extend along the axial direction of the through hole 31 and are used to abut against the side surface of the water-guiding core 4. A first groove 33 is formed between adjacent protrusions 32, and the water-guiding core 4 increases the contact area with ink and glitter through the first groove 33, and forms a channel for ink and glitter to pass through.

[0028] In this design, the protrusions 32 around the water-guiding core 4 are used to abut and position the core, ensuring its relative stability. The protrusions 32 create a first groove 33 between them, allowing ink and glitter to enter. This increases the contact area between the ink / glitter and the water-guiding core 4, improving water-guiding efficiency. It also allows the ink / glitter to flow out easily. This design utilizes both capillary action from the water-guiding core 4 and the siphon effect created by the first groove 33. The channel facilitates the passage of glitter, working in conjunction with the ink to achieve its water-guiding function. This design results in faster and more stable ink flow, smoother writing, and alleviates problems such as clogging and poor ink flow when glitter and the water-guiding core 4 work together to guide water.

[0029] It is important to note that this solution focuses on improving the ink flow rate and stability, rather than simply increasing the ink output. Simply increasing the ink output can easily lead to ink dripping and leakage.

[0030] The ink storage component 5 in the above scheme can be an inner cavity set inside the pen barrel 1 to provide ink storage space, or it can be a detachable ink sac inside the pen barrel 1.

[0031] In the optimized scheme, the side of the water-guiding core 4 is provided with a step 41, and a plurality of protrusions 32 have a gap between one end of the step 41 and the step 41, and the first groove 33 formed between adjacent protrusions 32 is an opening at one end of the step 41 so that ink and glitter can flow to the step 41 of the water-guiding core 4.

[0032] The gap between the step 41 and the end of the protrusion 32 makes it easier for ink and glitter to be obtained at the position of the step 41. The step 41 can increase the contact area between the water-guiding core 4 and the ink and glitter, and the step 41 can increase the radial dimension of the water-guiding core 4, which can better fit with the inner wall of the through hole 31, making the installation state of the water-guiding core 4 more stable.

[0033] It should be noted that the position of the water guide core 4 corresponding to the step 41 does not form a very tight contact with the inner wall of the through hole 31, but rather a clearance fit. At the same time, it can provide a limiting effect when the water guide core 4 undergoes a certain radial displacement. Therefore, it will not affect the flow of ink and glitter. On the contrary, the gap relationship creates a relatively small gap, which creates a certain restriction effect on ink and glitter, preventing ink and glitter from flowing out directly under slight movements, resulting in excessive ink flow and affecting the writing effect.

[0034] The water-guiding core 4 itself has a large amount of capillary in the axial direction. At this time, capillary will also leak out on the step 41, which can increase the contact area between the water-guiding core 4 and the ink and sequins, and further optimize the water-guiding effect.

[0035] The first groove 33 has an opening at one end corresponding to the step 41, allowing ink and glitter to come into contact with the step 41 of the water-conducting core 4. This opening allows for a more direct flow of ink and glitter. It also allows for a more direct and rapid capillary action between the ink and glitter and the step 41 of the water-conducting core 4.

[0036] In order to ensure that the water-conducting core 4 can maintain a certain gap with the end of the step 41 during installation, a fixing member 6 for mounting the pen tip 2 is provided on the pen barrel 1 at the position corresponding to the pen tip 2. The pen tip 2 is mounted on the fixing member 6, and the axial movement of the pen tip 2 is restricted by the fixing member 6.

[0037] During installation, the pen tip 2 is first installed on the fixing member 6, and then the fixing member 6 is installed on the pen barrel 1. This ensures that the fixing member 6 is properly installed, preventing excessive insertion of the ink core 4, which could cause the step 41 to abut against the end of the protrusion 32, affecting the flow of ink and glitter. Therefore, the fixing member 6 can serve as a positioning component for the ink core 4, facilitating the control of the position of the ink core 4 during each installation.

[0038] Specifically, the inner wall of the fixing member 6 is provided with a snap-fit ​​member 71 corresponding to the position of the pen tip 2. The pen tip 2 is provided with a second groove 72 extending circumferentially along the outer surface of the pen tip 2 corresponding to the position of the snap-fit ​​member 71. The snap-fit ​​member 71 and the second groove 72 cooperate to form a snap-fit. The axial length of the second groove 72 along the pen tip 2 is greater than the axial length of the snap-fit ​​member 71 along the pen tip 2. Moreover, the second groove 72 can also provide an outlet channel for ink and glitter.

[0039] By using the snap-fit ​​71 to cooperate with the second groove 72 on the pen tip 2, the pen tip 2 can be restricted in the axial direction to a certain extent, allowing the pen tip 2 to be adjusted axially within a certain range, thereby producing a certain error adaptation effect.

[0040] In a further configuration, the following scheme can also be used: the regulator 3 is provided with a number of limiting blocks 8 at one end of the ink storage component 5. At least a portion of the limiting blocks 8 extends to the through hole 31 and is used to cooperate with the end of the water inlet core 4 to form a limiting position.

[0041] The limiting block 8 can prevent the end of the water-conducting core 4 from extending excessively beyond the through hole 31. Utilizing the limiting effect of the limiting block 8 and the end of the water-conducting core 4, the step 41 of the water-conducting core 4 can better form a gap with the protrusion 32. At this time, the abutment of the limiting block 8 can match the length of the second groove 72 on the pen tip 2 to engage with the snap-fit ​​component 71. After the water-conducting core 4 and the limiting block 8 are in place, the water-conducting core 4 cannot move further, while the fixing component 6 can continue to move and be assembled in place. Of course, if the dimensions are well-matched, the abutment between the snap-fit ​​component 71 and the side wall of the second groove 72, as well as the abutment between the water-conducting core 4 and the limiting block 8, can ensure that the water-conducting core 4 and the pen tip 1 are in a very stable assembled state.

[0042] In one embodiment that optimizes the installation efficiency of the water inlet core 4, a guide slope 34 is provided in the through hole 31 of the regulator 3. The diameter of the through hole 31 becomes smaller after passing through the guide slope 34, and the protrusion 32 is located in the through hole 31 at the position with the smaller diameter. There are gaps between the two parts of the through hole 31 with the larger diameter and the smaller diameter and the water inlet core 4.

[0043] The guide slope 34 can provide a certain guiding effect when installing the water core 4, allowing the water core 4 to quickly align with the position surrounded by multiple protrusions 32, making the installation of the water core 4 more convenient. In particular, the water core 4 has a step 41, which means that the diameter of the water core 4 corresponding to the position of the protrusion 32 is relatively small, while the diameter of the position with the step 41 is relatively large. At this time, the larger diameter of the step 41 can be used to cooperate with the guide slope 34, making it easier for the smaller diameter part to align with the space formed by the multiple protrusions 32.

[0044] In particular, the end of the water-guiding core 4 corresponding to the ink storage component 5 is designed as a conical or frustum-shaped shape. The conical or frustum-shaped end of the water-guiding core 4 facilitates installation, and the conical or frustum shape itself has a guiding effect, making it easier for the water-guiding core 4 to guide during installation. Furthermore, the conical or frustum-shaped end of the water-guiding core 4 increases the surface area, resulting in a larger cross-sectional area for the water-guiding capillary action and a better capillary effect.

[0045] In the preferred configuration, several protrusions 32 are evenly distributed along the circumference of the through hole 31. The evenly distributed protrusions 32 make the first groove 33 more uniform, allowing ink and glitter to flow out evenly, making the overall ink flow of the pen tip 2 more uniform and smooth when writing, and avoiding the problem of uneven ink density.

[0046] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A liquid direct writing instrument with a highlighter, comprising a pen barrel, a pen tip mounted at the end of the pen barrel, an adjuster arranged in the pen barrel, a lead water core mounted on the adjuster, and a storage ink component arranged in the pen barrel; characterized in that, The pen head is integrally arranged with the water guide core, the ink storage component has ink and bright powder, and the axial direction of the regulator is provided with a through hole for mounting the water guide core.

2. The liquid direct writing instrument with a glitter according to claim 1, wherein The inner wall of the end of the ink storage component corresponding to the through hole is provided with a plurality of protrusions along the circumferential direction, the protrusions extend along the axial direction of the through hole and abut against the side surface of the water guide core, the first grooves are formed between adjacent protrusions, the water guide core increases the contact area with the ink and bright powder through the first grooves, and the through hole is formed for the ink and bright powder to pass through.

3. The liquid direct writing instrument with a glitter according to claim 2, wherein The side surface of the water guide core is provided with a step, the end of the step corresponding to the plurality of protrusions has a gap, and the first grooves formed between adjacent protrusions are open at the end of the step to allow the ink and bright powder to flow to the step of the water guide core.

4. The liquid direct writing instrument with a glitter according to claim 3, wherein The pen barrel is provided with a fixing member for mounting the pen head at a position corresponding to the pen head, the pen head is mounted on the fixing member and the axial movement of the pen head is limited by the fixing member.

5. The liquid direct writing instrument with a glitter according to claim 4, wherein The inner wall of the fixing member is provided with a clamping member at a position corresponding to the pen head, the pen head is provided with a second groove extending along the circumferential direction of the outer surface of the pen head at a position corresponding to the clamping member, the clamping member and the second groove cooperate to form a clamping connection, and the length of the second groove along the axial direction of the pen head is greater than the length of the clamping member along the axial direction of the pen head.

6. The liquid direct writing instrument with a glitter according to claim 5, wherein The through hole of the regulator is provided with a guide slope, the diameter of the through hole decreases after passing through the guide slope, the protrusions are located at the position with smaller diameter in the through hole, and the two parts with larger diameter and smaller diameter in the through hole have gaps with the water guide core.

7. The liquid direct writing instrument with a glitter according to claim 4, wherein The through hole of the regulator is provided with a guide slope, the diameter of the through hole decreases after passing through the guide slope, the protrusions are located at the position with smaller diameter in the through hole, and the two parts with larger diameter and smaller diameter in the through hole have gaps with the water guide core.

8. The liquid direct writing instrument with a glitter according to claim 6 or 7, wherein The end of the water guide core corresponding to the ink storage component is provided in a circular truncated cone shape.

9. The liquid direct writing instrument with a glitter according to claim 2 or 3 or 4 or 5 or 6 or 7, wherein The plurality of protrusions are uniformly distributed along the circumferential direction of the through hole.

10. The liquid direct writing instrument with a glitter according to claim 2 or 3 or 4 or 5 or 6 or 7, wherein The regulator is further provided with a plurality of limiting blocks at the end corresponding to the ink storage component, at least a part of the limiting blocks extends to the through hole, and the end of the water guide core is limited by the limiting blocks.