Pen with stirrer supporting structure

By setting a support structure at the bottom of the ink tank to prevent the hard sediment layer from covering the stirrer, the problem of the stirrer not being able to move in acrylic markers is solved, achieving uniform ink mixing and good writing effect.

CN223890682UActive Publication Date: 2026-02-10QINGDAO CHANGLONG STATIONERY
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Patent Information

Application Number
CN202520107629.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2026-02-10
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

When a hard sediment layer forms in the ink tank of an existing acrylic marker, the agitator cannot move properly, resulting in uneven ink mixing and affecting writing quality and coverage.

Method used

A support structure is installed at the bottom of the ink tank to maintain a certain distance between the agitator and the bottom of the ink tank, preventing the hard sediment layer from covering the agitator and ensuring that the agitator can move normally.

Benefits of technology

It effectively prevents hard sediment from coating the agitator, maintains the normal function of the agitator, allows the ink to be remixed evenly, restores good hiding power, and avoids sediment from affecting the performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of stationery, in particular to a pen with a stirrer bearing structure. An ink bin for storing ink is arranged in the pen, a stirrer is arranged in the ink bin, and the stirrer can freely move in the ink bin. A bearing structure is arranged at the bottom of the ink bin, the bottom is the end, away from the pen point, of the ink bin, and the bearing structure is used for enabling the stirrer and the bottom of the ink bin to be separated by a set distance. According to the utility model, the stirrer can be effectively prevented from being coated by hard precipitates, so that the stirrer can normally move, the uniform mixing of ink is realized, and the writing effect and the covering power of the propylene mark pen are guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to stationery technical field especially, a kind of pen with supporting agitator structure. BACKGROUND

[0002] Acrylic marker is a kind of widely used for writing and drawing tool, especially in stationery field is favored. It is loved by users with its strong hiding power and applicability on a variety of media. The working principle of acrylic marker is to guide ink from ink storehouse by pen head, to write or draw on various surfaces. However, with the extension of use time, titanium dioxide in ink first forms soft deposit, when long-term storage, the deposit condition of titanium dioxide is more and more serious, even forms hard deposit layer, affects the uniformity of ink and the normal use of pen.

[0003] The existing acrylic marker is provided with agitator in ink storehouse, when forming soft deposit, user shakes product, and the agitator in pen barrel with greater density is moved, and ink is stirred to reach uniform state. But when forming hard deposit layer, hard deposit layer will cover agitator, so that agitator cannot move normally, thereby cannot effectively mix ink, affects the normal use of pen. UTILITARY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model embodiment aims at providing a pen with supporting agitator structure, which can effectively prevent agitator from being covered by hard deposit, so that agitator can move normally, thereby realizing uniform mixing of ink and guaranteeing the writing effect and hiding power of acrylic marker.

[0005] In order to achieve the above-mentioned purpose, the utility model embodiment provides the following technical scheme:

[0006] A pen with supporting agitator structure, the pen has ink storehouse for storing ink, the ink storehouse is provided with agitator, and the agitator can move freely in the ink storehouse;The bottom of the ink storehouse is provided with supporting structure, the bottom is the end of the ink storehouse away from the pen head, and the supporting structure is used to separate the agitator from the bottom of the ink storehouse by a certain distance.

[0007] Optionally, the supporting structure is a convex rib with a certain length;The number of the convex rib is one, and the gap between the inner side of the convex rib and the inner wall of the opposite ink storehouse is less than the outer contour of the agitator;Or, the convex ribs are arranged in a ring along the inner wall of the ink storehouse, and the covering surface of the inner side of the plurality of convex ribs is less than the outer contour of the agitator.

[0008] Optionally, the supporting structure is a protruding rib with a set length, the protruding rib is arranged at the center of the cross section of the ink tank, and a gap between the protruding rib profile and the inner wall of the ink tank is smaller than the outer profile of the stirrer.

[0009] Optionally, the protruding rib is an integral structure with the ink tank.

[0010] Optionally, the supporting structure is a ring-shaped sleeve, the ring-shaped sleeve is inlaid at the bottom of the ink tank, the ring-shaped sleeve has a set length along the direction of the pen shaft, and the inner hole diameter of the ring-shaped sleeve is smaller than the outer profile of the stirrer.

[0011] Optionally, the supporting structure is a filter screen, the filter screen has a set distance from the bottom of the ink tank, and the mesh of the filter screen is smaller than the outer profile of the stirrer.

[0012] Optionally, the ink tank is further provided with a supporting structure, the supporting structure is a protruding rib arranged on the inner wall of the ink tank, the protruding rib is arranged along the axial direction of the ink tank, and the protruding rib is used for supporting the stirrer to form a predetermined gap between the stirrer and the inner wall of the ink tank.

[0013] Optionally, the stirrer is a sphere or a cylinder.

[0014] Optionally, the end of the pen has a writing assembly, and the writing assembly comprises a pen tip and a relay core.

[0015] Optionally, the pen is a straight liquid type acrylic marker or a valve type acrylic marker.

[0016] One or more technical solutions provided in the embodiment of the utility model have at least the following technical effects or advantages:

[0017] The pen is provided with a supporting structure at the bottom of the ink tank, a gap in the supporting structure or a gap between the supporting structure and the inner wall of the ink tank is smaller than the profile of the stirrer, so that the stirrer is prevented from sinking to the bottom of the ink tank, and the distance from the top surface of the supporting structure to the bottom of the ink tank is greater than the height of the formed sediment, so that even if the marker has been stored for a long time and a hard sediment layer is formed at the bottom of the ink tank, the hard sediment layer can be effectively prevented from wrapping the stirrer, the normal working function of the stirrer is maintained, the ink is uniformly mixed again, the better hiding power is restored, and the use effect is not affected by the sediment.

[0018] The advantages of the additional aspects of the utility model will be given in the following description, some of which will become apparent from the following description or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide further understanding of the present application, the schematic embodiments of the present application and the explanations thereof are used to explain the present application, and do not constitute improper limitation on the present application. In addition, the mutual distance or size is exaggerated for showing the positions of the components, and the schematic diagram is only used for illustration.

[0020] Figure 1 is a schematic diagram of a supporting structure in a first mode provided by the embodiment of the present application;

[0021] Figure 2 is a schematic diagram of a supporting structure in a second mode provided by the embodiment of the present application;

[0022] Figure 3 is a schematic diagram of a supporting structure in a third mode provided by the embodiment of the present application;

[0023] Figure 4 is a schematic diagram of a cross section of an ink tank provided by the embodiment of the present application;

[0024] In the figure: 1, ink tank; 2, stirrer; 3, supporting structure; 4, supporting structure; DETAILED DESCRIPTION

[0025] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs. In addition, it should be understood that when the terms "comprise" and / or "include" are used in the present specification, they indicate the presence of a feature, step, operation, device, component and / or their combination.

[0026] Term explanation:

[0027] The formula of the propylene ink mainly includes the following:

[0028] Titanium dioxide (TiO2), has a variety of important functions, provides white: titanium dioxide is one of the most commonly used white pigments, which can provide pure and bright white for ink. This is very important for applications that require white marks or high contrast effects. Hiding power: titanium dioxide has very high hiding power, which means it can effectively cover the underlying color, making the ink clearly visible on various colored surfaces. This feature allows the propylene marker to provide good coverage when drawing, especially on dark backgrounds. Increase opacity: titanium dioxide increases the opacity of the ink, making it more thick and opaque. This helps to ensure that the ink does not appear too transparent when used, thereby enhancing the visual effect.

[0029] Acrylic Resin: This is the base material of the ink, which is a synthetic polymer that provides good adhesion and durability. Acrylic resin is fast-drying and has good water resistance once dry, which makes the artwork drawn with acrylic markers less likely to be damaged by water after drying.

[0030] Pigments: Provide color, making the ink appear in various shades. These pigments are usually highly stable to ensure that the color does not fade or change over time.

[0031] Solvents: Used to dissolve the acrylic resin and other solid ingredients (such as pigments) so that they can be mixed into a liquid state, facilitating their flow through the marker tip and uniform distribution on paper. Solvents also help control the flow and drying speed of the ink. For acrylic markers, solvents may include organic solvents such as alcohols, ketones, etc.

[0032] Water: Auxiliary solvent, helping to dissolve some water-soluble ingredients, such as certain pigments or additives. In addition, water can also be used to dilute the ink, adjusting its viscosity and flow, making it easier to flow through the marker tip and evenly distribute on paper.

[0033] Other additives: Such as preservatives, thickeners, etc., adjusting the physical and chemical indicators of the ink, etc.

[0034] The composition of a typical ink is as follows:

[0035] Ingredients CAS No. Ratio Titanium dioxide 13463-67-7 20-40% Water 7732-18-5 26-46% Styrene-acrylonitrile 9003-54-7 20.0% Propylene glycol 57-55-6 10.0% Pigement yellow 83 5567-15-7 2.3% Pigment red 112 6535-46-2 1.7%

[0036] Titanium dioxide in the ink formula has a relatively high density compared to other components (greater than 4.0 g / cm3), and during product storage, titanium dioxide is prone to precipitate to the bottom of the ink. As the storage time increases, the precipitation will become more and more serious. In this case, when the user creates a picture, the initial ink color does not contain or contains only a small amount of titanium dioxide, and the hiding power is poor.

[0037] The following is the typical product after storage:

[0038] Standing time Hard sediment height 1 day 0 mm or so 7 days 0.8 mm or so 30 days 1.5 mm or so 90 days 3.2 mm or so

[0039] As shown in Figures 1-3 The embodiment provides a pen with a supporting stirrer structure, which can be a straight liquid acrylic marker or a valve type acrylic marker. The marker has an ink tank 1 for storing ink, and a stirrer 2 is arranged in the ink tank 1, and the stirrer 2 can move freely in the ink tank 1; a supporting structure 3 is arranged at the bottom of the ink tank 1, and the bottom is the end of the ink tank 1 away from the pen head (i.e. Figure 1The supporting structure 3 is used to separate the stirrer 2 from the bottom of the ink tank 1 by a certain distance, wherein the certain distance is greater than the height of the formed precipitate, and the certain distance can be reasonably set by those skilled in the art according to specific conditions.

[0040] When the product is stored for a long time, the ink tank 1 produces hard precipitate, which first precipitates to the bottom of the ink tank 1 and does not reach the top surface of the supporting structure 3. Since the height of the stirrer 2 is higher than the height of the hard precipitate, the stirrer 2 is not covered by the hard precipitate at all, and thus can move easily. Through the reciprocating movement of the stirrer 2, the ink is uniformly mixed, and the hiding power is restored during writing.

[0041] The supporting structure 3 is a protruding rib, and the length of the protruding rib in the direction of the pen axis is greater than the height of the formed precipitate. The number of the protruding ribs can be one, and the gap between the inner side of the protruding rib and the inner wall of the opposite ink tank 1 is less than the outer contour of the stirrer 2; or the protruding ribs are arranged in a ring along the inner wall of the ink tank 1, and the number of the protruding ribs is two or more, and the covering surface of the inner side of the plurality of protruding ribs is less than the outer contour of the stirrer 2 (as shown in Figure 1 The ring arrangement of the plurality of protruding ribs helps to improve stability and uniform supporting force, avoids direct contact between the precipitate and the stirrer 2 after the ink tank 1 is stored for a long time, effectively prevents the precipitate from accumulating around the stirrer 2, and ensures the movement ability of the stirrer 2.

[0042] In another embodiment, as shown in Figure 2 The supporting structure 3 is a protruding rib, and the length of the protruding rib in the direction of the pen axis is greater than the height of the formed precipitate, and the protruding rib is arranged at the center of the cross section of the ink tank 1, and the gap between the contour of the protruding rib and the inner wall of the ink tank 1 is less than the outer contour of the stirrer 2. The centrally arranged protruding rib realizes that the stirrer 2 is not covered by the hard precipitate with a relatively simple structure.

[0043] The protruding rib described above is an integral structure with the ink tank 1, and the protruding rib is not a separately assembled component, but is integrally formed with the bottom of the ink tank 1. In this way, possible assembly errors in the production process can be reduced, and the stability and durability of the overall structure are also improved.

[0044] In another embodiment, as shown in Figure 3 The supporting structure 3 is a ring-shaped sleeve, and the ring-shaped sleeve is inlaid in the bottom of the ink tank 1, the length of the ring-shaped sleeve in the direction of the pen axis is greater than the height of the formed precipitate, and the inner hole diameter of the ring-shaped sleeve is less than the outer contour of the stirrer 2. In the implementation process, the installation of the ring-shaped sleeve can be realized by insertion, clamping and the like, and the installation process is simple and not easy to fall off, thereby improving the overall use stability.

[0045] In another embodiment, the supporting structure 3 is a filter screen, the distance from the filter screen to the bottom of the ink tank 1 is greater than the height of the formed precipitate, and the mesh of the filter screen is smaller than the outer contour of the stirrer 2. The design of the filter screen as the supporting structure 3 can effectively prevent the hard precipitate layer from covering the stirrer 2. In practical applications, the filter screen can be made of metal mesh or plastic mesh material.

[0046] As shown in Figure 4 The ink tank 1 is also provided with a support structure 4, which is a protruding rib arranged on the inner wall of the ink tank 1, the number of which is greater than or equal to 3, and the protruding rib is arranged in the axial direction of the ink tank 1, used to support the stirrer 2 to form a predetermined gap between the stirrer 2 and the inner wall of the ink tank 1. When the pen tip is horizontally stored, the thickness of the precipitate layer is small due to the large dispersion area, so when implemented, the thin support structure 4 can effectively prevent the precipitate from wrapping the stirrer 2 and ensure the normal function of the stirrer 2.

[0047] The stirrer 2 is a sphere or a cylinder. The spherical or cylindrical stirrer 2 has good motion performance and can move freely in the ink tank 1 to achieve good mixing effect. The sphere can disperse force more uniformly during movement, and the cylindrical shape can provide better axial stability.

[0048] The end of the marker pen has a writing assembly, which includes a pen tip and a relay core.

[0049] Although the specific embodiments of the present application have been described in detail with reference to the accompanying drawings, the description is not a limitation on the scope of protection of the present application. Those skilled in the art should understand that various modifications or variations can be made to the technical scheme of the present application without creative labor, and such modifications or variations are still within the scope of protection of the present application.

Claims

1. A pen with a structure for supporting a stirrer, characterized in that, The pen has an ink reservoir for storing ink, and a stirrer is installed inside the ink reservoir, which can move freely within the ink reservoir; The bottom of the ink tank is provided with a support structure, which is the end of the ink tank away from the pen tip. The support structure is used to separate the stirrer from the bottom of the ink tank by a set distance. The gap inside the support structure or the gap between the support structure and the inner wall of the ink tank is smaller than the outline of the agitator, and the distance from the top surface of the support structure to the bottom of the ink tank is greater than the height of the sedimentation formed.

2. The pen with a stirrer-supporting structure as described in claim 1, characterized in that, The supporting structure is a raised rib of a predetermined length; The number of raised ribs is one, and the gap between the inner side of the raised rib and the inner wall of the ink tank on the opposite side is smaller than the outer contour of the stirrer; or, multiple raised ribs are arranged in a ring along the inner wall of the ink tank, and the covering surface of the inner side of the multiple raised ribs is smaller than the outer contour of the stirrer.

3. The pen with a stirrer-supporting structure as described in claim 1, characterized in that, The supporting structure is a raised rib of a set length, which is located at the center of the cross-section of the ink tank. The gap between the outline of the raised rib and the inner wall of the ink tank is smaller than the outer outline of the stirrer.

4. The pen with a stirrer-supporting structure as described in claim 2 or 3, characterized in that, The raised rib and the ink reservoir are an integral structure.

5. The pen with a stirrer-supporting structure as described in claim 1, characterized in that, The supporting structure is an annular sleeve, which is embedded in the bottom of the ink reservoir. The annular sleeve has a set length along the pen axis, and the inner diameter of the annular sleeve is smaller than the outer contour of the stirrer.

6. The pen with a stirrer-supporting structure as described in claim 1, characterized in that, The supporting structure is a filter screen, and there is a set distance between the filter screen and the bottom of the ink tank. The mesh size of the filter screen is smaller than the outer contour of the stirrer.

7. The pen with a stirrer-supporting structure as described in claim 1, characterized in that, The ink tank is also equipped with a support structure, which is a raised rib on the inner wall of the ink tank. The raised rib is arranged along the axial direction of the ink tank and is used to support the agitator so that a predetermined gap is formed between the agitator and the inner wall of the ink tank.

8. The pen with a stirrer-supporting structure as described in claim 1, characterized in that, The stirrer is either a sphere or a cylinder.

9. The pen with a stirrer-supporting structure as described in claim 1, characterized in that, The pen has a writing component at its end, which includes a pen tip and a relay core.

10. The pen with a stirrer-supporting structure as described in claim 1, characterized in that, The pen is a direct-liquid acrylic marker or a valve-type acrylic marker.