Direct liquid type integral refill structure
By designing an integrated pen tip and ink core structure, the problem of uneven writing when using direct-liquid pens with functional inks has been solved, resulting in improved stability and writing performance.
Patent Information
- Application Number
- CN202423142320.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-19
AI Technical Summary
The existing direct-liquid pen structure is difficult to adapt to functional inks with additives containing larger particle sizes, resulting in writing that is not smooth.
It adopts an integrated pen tip and ink core structure, combined with the design of the adapter and ink adjuster. Through the drop step and limiting structure between the pen tip and ink core, it ensures the stability of the pen tip and the smooth delivery of large-particle ink.
It enables smooth writing with functional inks, improves pen tip stability, and ensures smooth and stable writing.
Smart Images
Figure CN223559374U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to writing tool technical field, especially a straight liquid type whole refill structure. BACKGROUND
[0002] Straight liquid type neutral pen or straight liquid type ball pen has the advantages of uniform ink transfer, smooth writing, long writing length compared with traditional writing pen, and therefore is more and more popular among consumers. The principle is to provide ink directly through the self-provided ink storage cavity, install a water guide core in the pen, and the ink is adsorbed on the water guide core and continuously transported to the pen head through the contact between the water guide core and the pen head.
[0003] The current straight liquid type pen is usually designed for ink with relatively high purity. The matched ink is usually single-color ink with simple composition. With the improvement of writing requirements, there are more and more requirements for functional ink for multiple purposes. As for functional ink, some additives are usually added, which have a certain particle size, so that the ink has a certain writing effect. For example, some functional ink adds titanium dioxide, aluminum powder and pearl powder. Because these additives have a certain particle size, the current conventional straight liquid type structure will easily cause the problem of unsmooth writing.
[0004] Therefore, in order to adapt to the higher requirements for ink at present, the structure of the straight liquid type pen needs to be improved and designed. INVENTION CONTENTS
[0005] The utility model aims at providing a straight liquid type whole refill structure, which can adapt to functional ink at present by adopting the structure, and ensure good writing effect when writing functional ink.
[0006] Specifically, the utility model adopts the following technical solutions:
[0007] A straight liquid type whole refill structure, comprising a pen tube, a refill assembly is arranged in the pen tube, and the refill assembly is matched with the pen tube; the refill assembly comprises an ink regulator, an adapter and a refill head, the refill head is fixedly connected with the ink regulator as a whole through the adapter; the refill head comprises a pen head at the front part and a water guide core extending rearward from the tail part of the pen head in a rod shape, the pen head and the water guide core are integrated, the pen head is exposed outside the pen tube through the pen tube at the front part, the ink regulator has a water guide cavity, the water guide core passes through the adapter and is inserted into the water guide cavity of the ink regulator to be fixedly connected with the ink regulator.
[0008] As a preferred, the head part of the ink regulator has an insertion tube, the rear half part of the adapter has a containing cavity, the insertion tube and the inner wall of the containing cavity are both provided with anti-drop structures for clamping cooperation, and the insertion tube is inserted into the containing cavity to be fixedly connected as a whole.
[0009] As preferred, the outer diameter of the tail of the pen head is larger than the outer diameter of the water guide core, and a stepped gap is formed at the joint of the pen head and the water guide core.
[0010] As preferred, a gap is formed between the insertion tube and the water guide cavity, and the stepped gap at the joint of the pen head and the water guide core matches the gap, and the tail of the pen head is limited in the insertion tube by the gap structure.
[0011] As preferred, a pen head cavity is arranged in front of the accommodating cavity of the adapter, and a limiting convex ring is arranged at the joint of the tail of the pen head cavity and the accommodating cavity, and a limiting groove is arranged on the corresponding pen head, and the limiting convex ring is matched with the limiting groove.
[0012] As preferred, the head of the pen head is in a conical structure.
[0013] As preferred, the tail of the water guide core is in a conical structure.
[0014] As preferred, the inner diameter of the water guide cavity in the ink regulator is larger than the outer diameter of the water guide core, and a fixing ring is arranged at the tail of the water guide cavity, which matches the outer diameter of the water guide core.
[0015] As preferred, the water guide core is exposed outside the tail of the ink regulator by penetrating through the ink regulator.
[0016] Compared with the prior art, the utility model has the advantages that:
[0017] The pen head is designed in an integrated structure, thereby providing a basis for improvement of the water guide core; on the basis of improvement of the pen head, the water guide core can be designed to have a larger porosity, thereby facilitating smooth delivery of functional ink with large particle size components to the pen tip, and ensuring smoothness of writing;
[0018] The pen core head is limited and fixed by the double cooperation of the adapter and the ink regulator, thereby ensuring stability of the pen head during writing, preventing shaking and ink sliding of the pen head, and avoiding affecting the writing effect.
[0019] The pen core head can be stably fixed in the pen tube by cooperation of the outside of the adapter, thereby improving the stability of the pen head and helping to stabilize the writing effect. DETAILED DESCRIPTION
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0021] Figure 2 It is a schematic diagram of the structure of the pen core head of the utility model.
[0022] Figure 3 It is a schematic diagram of the structure of the adapter of the utility model.
[0023] Figure 4 It is a schematic diagram of the structure of the ink regulator of the utility model.
[0024] In the diagram: 1. Pen refill assembly, 2. Ink adjuster, 3. Adapter, 4. Pen tip, 5. Pen tip, 6. Ink core, 7. Ink chamber, 8. Insertion tube, 9. Receiving chamber, 10. Anti-detachment structure, 11. Pen tip chamber, 12. Limiting protrusion ring, 13. Limiting groove, 14. Fixing ring. Detailed Implementation
[0025] The representative embodiments shown in the accompanying drawings will now be further refined. It should be understood that the following description is not intended to limit the embodiments to a single preferred embodiment. Rather, it is intended to cover alternatives, modifications, and equivalents that may be included within the substance and scope of the embodiments defined by the appended claims.
[0026] Based on the current writing requirements for functional inks with larger particle sizes, our company provides a direct-flow integral refill structure. Refills with this structure can provide better writing results.
[0027] Specifically, the direct-liquid integral pen refill structure provided in this solution is as follows:
[0028] A direct-liquid integral pen refill structure, such as Figures 1-3 As shown, the pen refill structure includes a pen tube, within which a pen refill assembly 1 is disposed, and the pen refill assembly 1 is adapted to the pen tube. In this solution, the applicant has made adjustments to the pen refill structure design.
[0029] Specifically, the pen refill assembly 1 is designed as three parts: an ink adjuster 2, an adapter 3, and a pen refill tip 4. The pen refill tip 4 is fixedly connected to the ink adjuster 2 as a whole through the adapter 3. The head of the ink adjuster 2 has an insertion tube 8, and the rear half of the adapter 3 has a receiving cavity 9. The periphery of the insertion tube 8 and the inner wall of the receiving cavity 9 are provided with anti-dislodgement structures 10 for snap-fit engagement. The insertion tube 8 is inserted into the receiving cavity 9 and fixedly engaged as a whole.
[0030] The pen tip 4 includes a pen tip 5 at the front and a rod-shaped ink core 6 extending backward from the tail of the pen tip 5. The pen tip 5 and the ink core 6 are an integral structure. The front part of the pen tip 5 passes through the pen tube and is exposed outside the pen tube. The ink adjuster 2 has an ink cavity 7. The ink core 6 passes through the adapter 3 and is inserted into the ink cavity 7 of the ink adjuster 2 and is fixed in place with the ink adjuster 2.
[0031] The tail of the pen point 5 has an outer diameter larger than the outer diameter of the wick 6, and a step is formed at the joint of the pen point 5 and the wick 6, and the pen point 5 has a step difference between the insertion tube 8 and the wicking cavity 7. The step at the joint of the pen point 5 and the wick 6 is matched with the step difference, and the tail of the pen point 5 is limited in the insertion tube 8 by the step difference. The inner diameter of the wicking cavity 7 in the ink regulator 2 is larger than the outer diameter of the wick 6, and the tail of the wicking cavity 7 is provided with a fixing ring 14 matched with the outer diameter of the wick 6. The adapter 3 is provided with a pen point cavity 11 in front of the accommodating cavity 9, and the tail of the pen point cavity 11 is provided with a limiting convex ring 12 at the joint with the accommodating cavity 9. A limiting groove 13 is formed on the pen point 5 corresponding to the limiting convex ring 12, and the limiting convex ring 12 is matched with the limiting groove 13. The two matching modes make the pen point 5 more stable.
[0032] The head of the pen point 5 is conical in structure, which is convenient for writing; the tail of the wick 6 is conical in structure, which is conducive to absorbing ink, and the wick 6 is exposed outside the ink regulator 2 through the ink regulator 2.
[0033] The application improves the scheme of the direct liquid type pen, and designs the pen point 5 and the wick 6 as an integrated structure, which is conducive to the stability of the pen point 5 and the wick 6 fixed by the ink regulator 2 and the adapter 3, thereby facilitating the increase of the space of the wicking cavity 7 in the ink regulator 2, and the improvement of the porosity of the ink regulator 2, thereby facilitating the passage of the components with a larger particle size of the functional ink, and providing a favorable guarantee for the writing effect of the functional ink.
[0034] The technical scheme has the advantages of overall stability, smooth writing, and can meet the current writing requirements of functional ink.
[0035] It is obvious for those skilled in the art that certain modifications, combinations and variations can be made on the basis of the above teaching content.
Claims
1. A direct-liquid integral pen refill structure, comprising a pen tube, a pen refill assembly (1) disposed within the pen tube, the pen refill assembly (1) being adapted to the pen tube; characterized in that: The pen refill assembly (1) includes an ink adjuster (2), an adapter (3), and a pen refill tip (4). The pen refill tip (4) is fixedly connected to the ink adjuster (2) as a whole through the adapter (3). The pen refill tip (4) includes a pen tip (5) at the front and a water-guiding core (6) extending backward from the tail of the pen tip (5) in the shape of a rod. The pen tip (5) and the water-guiding core (6) are an integral structure. The front part of the pen tip (5) passes through the pen tube and is exposed outside the pen tube. The ink adjuster (2) has a water-guiding cavity (7). The water-guiding core (6) passes through the adapter (3) and is inserted into the water-guiding cavity (7) of the ink adjuster (2) and is fixedly engaged with the ink adjuster (2).
2. The direct-liquid integral pen refill structure according to claim 1, characterized in that: The ink adjuster (2) has an insertion tube (8) at its head and a receiving cavity (9) at the rear half of the adapter (3). The insertion tube (8) and the inner wall of the receiving cavity (9) are provided with anti-detachment structures (10) for snap-fit engagement. The insertion tube (8) is inserted into the receiving cavity (9) and fixedly engaged as one unit.
3. The direct-liquid integral pen refill structure according to claim 2, characterized in that: The outer diameter of the tip (5) is larger than the outer diameter of the water-drawing core (6), and a drop step is formed at the junction of the tip (5) and the water-drawing core (6).
4. The direct-liquid integral pen refill structure according to claim 3, characterized in that: There is a drop between the insertion tube (8) and the water inlet chamber (7), and the drop step at the junction of the pen tip (5) and the water inlet core (6) matches it. The tail of the pen tip (5) is restricted to the insertion tube (8) by the drop structure here.
5. The direct-liquid integral pen refill structure according to claim 1, characterized in that: The adapter (3) has a pen tip cavity (11) in front of the receiving cavity (9). A limiting protrusion ring (12) is provided at the junction of the tail of the pen tip cavity (11) and the receiving cavity (9). A limiting groove (13) is opened on the corresponding pen tip (5). The limiting protrusion ring (12) cooperates with the limiting groove (13).
6. The direct-liquid integral pen refill structure according to claim 1, characterized in that: The pen tip (5) has a cone-shaped head.
7. The direct-liquid integral pen refill structure according to claim 1, characterized in that: The tail of the water intake core (6) is a conical structure.
8. The direct-liquid integral pen refill structure according to claim 1, characterized in that: The inner diameter of the water inlet cavity (7) of the ink adjuster (2) is larger than the outer diameter of the water inlet core (6), and a fixing ring (14) adapted to the outer diameter of the water inlet core (6) is provided at the tail of the water inlet cavity (7).
9. The direct-liquid integral pen refill structure according to claim 1, characterized in that: The water inlet core (6) passes through the ink adjuster (2) and is exposed outside the tail of the ink adjuster (2).