Improved water storage device of direct liquid type drawing pen and drawing pen

By setting up the internal ribs and water drainage tank in the water storage device, the problems of unstable positioning of the water drainage core and the impact of steel balls are solved, and the stable positioning of the water drainage core and the durability of the water storage device are achieved, ensuring the normal writing and service life of the painting brush.

CN223187258UActive Publication Date: 2025-08-05ANHUI TIANJIAN STATIONERY TECH CO LTD
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Patent Information

Application Number
CN202421623525.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-10
Publication Date
2025-08-05
Estimated Expiration
2034-07-10

AI Technical Summary

Technical Problem

The water reservoir and water diversion core of the straight liquid painting brush have problems such as unstable positioning and damage caused by steel ball impacting the water diversion core, which affects the writing effect and service life.

Method used

An improved water storage device is designed, including fins, ink passages and sealed ends. A rib is provided inside the ink passages. The rib part extends into the water guide groove and is connected to the ring to form a water guide hole. The end of the rib is conically matched with the water guide core to enhance positioning stability and improve structural strength through the anti-collision part and the connecting block.

Benefits of technology

It improves the positioning stability of the water-guiding core, avoids deformation and damage of the water-guiding core, and ensures the continuity of writing and the durability of the water storage device.

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Abstract

An improved water storage device of a direct liquid type drawing pen comprises a fin, an ink channel and a sealing end, a water guide groove is formed in the sealing end, and the water guide groove intersects with the ink channel; a rib is arranged in the upper part of the ink channel, one part of the rib occupies one part of space of the ink channel, and the other part of the rib extends into the water guide groove; the parts, extending into the water guide grooves, of the ribs are connected through circular ring parts; a water diversion hole is formed between the circular ring and the rib, and the water diversion groove can be communicated with the ink channel through the water diversion hole.
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Description

Technical Field

[0001] The invention relates to a water storage container, in particular to an improved water storage container for a direct liquid painting pen. Background Art

[0002] A direct-liquid painting pen consists of an ink cartridge, a water reservoir, a water guide core, and a nib. The ink cartridge stores ink. One end of the water reservoir contacts the ink and seals it with the cartridge. The reservoir has a multi-layered fin structure for regulating pressure within the cartridge. The axis of the reservoir is a cylindrical, hollow ink channel, within which lies the water guide core. The main body of the water guide core is cylindrical, with tapered ends. The upper portion of the water guide core contacts the ink, while the lower portion contacts the nib. The water guide core guides ink from the cartridge to the nib through capillary action. Its upper portion should be exposed above the water reservoir and have as large an area of contact with the ink as possible to facilitate ink absorption. Direct-liquid painting pens use water-based ink, which has high fluidity and provides a smooth and natural writing experience. However, it is prone to forming sedimentation surfaces, which are larger than the pores of the water guide core. Therefore, steel balls are typically placed in the ink cartridge of direct-liquid painting pens. Shaking the steel balls before use allows them to break up the sedimentation surfaces, allowing the water guide core to absorb ink smoothly.

[0003] Currently, there are two major problems with this type of water reservoir and water core. First, the water core is not positioned correctly. After it rises, the lower end of the water core cannot contact the pen tip, resulting in a writing problem. Second, when the steel ball is shaken, it will impact the water core, causing damage.

[0004] On April 17, 2024, the applicant applied for an open water reservoir and a painting pen for a straight liquid painting pen, a double-column water reservoir and a painting pen for a straight liquid painting pen, and a semi-chamfered water reservoir and a painting pen for a straight liquid painting pen. However, in actual use, it was found that when installing the water guide core of these three water reservoirs, if too much force is used, the water guide core will be deformed and may pass through the positioning structure. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an improved water reservoir for a straight liquid painting brush, comprising a fin, an ink channel, and a sealed end, wherein the sealed end is provided with a water diversion groove, and the water diversion groove intersects with the ink channel; a rib is provided inside the upper part of the ink channel, a part of the rib occupies a part of the space of the ink channel, and the other part extends into the water diversion groove; the rib is connected by a circular portion at the part extending into the water diversion groove; a water diversion hole is formed between the circular ring and the rib, and the water diversion groove and the ink channel can communicate with each other through the water diversion hole.

[0006] Preferably, the end of the rib is a tapered positioning portion with a gradually decreasing cross-section, and can match the tapered end of the water guide core.

[0007] Preferably, there are four ribs.

[0008] Preferably, the water diversion trough is a rounded rectangle.

[0009] Preferably, an anti-collision portion is further provided on the upper portion of the sealing end, and the anti-collision portion is connected to the sealing portion via a connecting block.

[0010] Preferably, a rectangular hole is provided in the center of the anti-collision portion.

[0011] Preferably, there are two connecting blocks.

[0012] A direct liquid painting pen comprises the above-mentioned water reservoir. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 For section Figure 1 .

[0014] Figure 2 For section Figure 1 A partial enlarged view of .

[0015] Figure 3 For section Figure 2 .

[0016] Figure 4 For section Figure 2 A partial enlarged view of .

[0017] Figure 5 It is an overall schematic diagram.

[0018] In the figure: 1-fin, 2-ink channel, 3-sealing end, 4-anti-collision part, 5-connecting block, 6-rib, 7-ring, 8-water diversion groove, 9-conical positioning part, 10-water diversion hole. DETAILED DESCRIPTION

[0019] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0020] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0021] In this utility model, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the utility model and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0022] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0023] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] An improved water reservoir for a straight liquid painting brush comprises a fin 1, an ink channel 2, and a sealed end 3. The sealed end 3 is provided with a water diversion groove 8, which intersects with the ink channel 2. A rib 6 is provided inside the upper portion of the ink channel 2, with a portion of the rib 6 occupying a portion of the space of the ink channel 2 and the other portion extending into the water diversion groove 8. The portion of the rib 6 extending into the water diversion groove 8 is connected by a circular ring 7. A water diversion hole 10 is formed between the circular ring 7 and the rib 6, and the water diversion groove 8 and the ink channel 2 can communicate with each other through the water diversion hole 10.

[0026] Preferably, the end of the rib is a tapered positioning portion 9 with a gradually decreasing cross-section, which can match the tapered end of the water guide core.

[0027] Preferably, there are four ribs 6 .

[0028] Preferably, the water diversion groove 8 is a rounded rectangle.

[0029] Preferably, an anti-collision portion 4 is further provided on the upper portion of the sealing end 3 , and the anti-collision portion 4 is connected to the sealing portion 3 via a connecting block 5 .

[0030] Preferably, a rectangular hole is provided in the center of the anti-collision portion 4 .

[0031] Preferably, there are two connecting blocks 5.

[0032] A direct liquid painting pen comprises the above-mentioned water reservoir.

[0033] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An improved water reservoir for a direct liquid painting brush, comprising fins, an ink channel, and a sealing end, characterized in that: The sealing end is provided with a water diversion groove, which intersects with the ink channel; a rib is provided inside the upper part of the ink channel, a part of the rib occupies a part of the space of the ink channel, and the other part extends into the water diversion groove; the rib is connected by a circular ring part at the part extending into the water diversion groove; a water diversion hole is formed between the circular ring and the rib, and the water diversion groove and the ink channel can communicate with each other through the water diversion hole.

2. The improved water reservoir for a direct liquid painting brush according to claim 1, characterized in that: The end of the rib is a tapered positioning portion with a gradually decreasing cross section, and can match the tapered end of the water guide core.

3. The improved water reservoir for a direct liquid painting brush according to claim 1, characterized in that: There are 4 tendons.

4. The improved water reservoir for a direct liquid painting brush according to claim 1, characterized in that: The water diversion trough is a rounded rectangle.

5. The improved water reservoir for a direct liquid painting brush according to claim 1, characterized in that: An anti-collision portion is further provided on the upper portion of the sealing end, and the anti-collision portion is connected to the sealing end via a connecting block.

6. The improved water reservoir for a direct liquid painting brush according to claim 5, characterized in that: A rectangular hole is provided in the center of the anti-collision part.

7. The improved water reservoir for a direct liquid painting brush according to claim 5, characterized in that: There are two connecting blocks.

8. A direct liquid painting pen, characterized by: An improved water reservoir comprising a direct liquid painting brush according to any one of claims 1 to 7.