Anti-ink-leakage mark pen

Abstract

The utility model relates to the technical field of stationery, in particular to an ink-leakage-proof mark pen which comprises a pen body, a sealing cover, a water leading core and a pen point, an inner cavity is formed in the pen body, the sealing cover is arranged on the pen body and seals the inner cavity, the water leading core penetrates through the sealing cover and extends into the inner cavity, and the pen point is arranged at the end, away from the inner cavity, of the water leading core. The inner cavity is filled with ink, a leakage-proof chamber is arranged in the sealing cover, one end of the ink guide core is located in the inner cavity, the other end of the ink guide core is located in the leakage-proof chamber, the end, away from the ink guide core, of the pen point extends to the outer side of the leakage-proof chamber, and the end, located in the leakage-proof chamber, of the ink guide core is sleeved with waterproof cotton. The ink in the ink guide core is blocked through the waterproof cotton, leakage of the ink in the ink guide core is prevented, good use experience of the mark pen is guaranteed, too fast consumption caused by leakage of the ink is prevented, and the mark pen is more durable.

Description

Technical Field

[0001] The utility model relates to the technical field of stationery, in particular to an ink leakage-proof marker pen. Background Art

[0002] A marker pen, also known as a permanent marker, is a colored drawing pen used for writing or drawing. It contains ink and typically comes with a cap and a hard tip. Marker pens use volatile ink for quick, one-time drawings and are often used for designing objects, advertising slogans, posters, and other artistic endeavors.

[0003] The marker pen in the prior art includes a pen body with an inner cavity, a cover that is buckled onto the pen body to seal the inner cavity, a water-drawing core that passes through the cover and extends into the inner cavity, and a pen tip arranged on the water-drawing core. Ink is poured into the inner cavity of the pen body, and the pen tip absorbs the ink through the water-drawing core, thereby achieving ink discharge for writing.

[0004] In order to ensure that the pen tip can produce ink as soon as it is used, the water-drawing core needs to keep absorbing ink. Over time, the ink absorbed by the water-drawing core will easily leak out of the water-drawing core and then leak out of the pen body, making the user experience of the marker pen worse and the ink consumption faster. However, the marker pens in the prior art do not have a protective structure to prevent the water-drawing core from leaking ink, so solving the problem of ink leakage from the water-drawing core is urgent. Utility Model Content

[0005] The purpose of the present invention is to overcome the shortcomings and deficiencies of the existing technology and to provide an anti-leakage ink marker. The present invention coats a water-isolating cotton on the water-introducing core to block the ink in the water-introducing core through the water-isolating cotton, thereby preventing the ink from leaking out. This ensures a good user experience of the marker pen and also prevents excessive consumption caused by ink leakage, making the marker pen more durable.

[0006] The technical solution adopted by the present utility model is as follows: an ink leakage-proof marker pen, comprising a pen body, a sealing cap, a water-drawing core and a pen tip, wherein an inner cavity is opened inside the pen body, the sealing cap is arranged on the pen body and closes the inner cavity, the water-drawing core passes through the sealing cap and extends into the inner cavity, the pen tip is arranged at an end of the water-drawing core away from the inner cavity, the inner cavity is filled with ink, an anti-leakage chamber is provided inside the sealing cap, one end of the water-drawing core is located in the inner cavity and the other end is located in the anti-leakage chamber, the end of the pen tip away from the water-drawing core extends to the outside of the anti-leakage chamber, and the end of the water-drawing core located in the anti-leakage chamber is covered with water-isolating cotton.

[0007] An ink absorbing head is protruded from one end surface of the cover close to the inner cavity. The ink absorbing head is provided with a slot for the water guide core to extend into. The ink absorbing head is also provided with at least one breach, and the slot is communicated with the inner cavity through the breach.

[0008] The inner wall of the ink absorbing head is protruded with at least one boss which abuts against the end of the water-introducing core.

[0009] The water guide core is plugged into the slot, and the inner wall of the slot is recessed with at least one air return groove, and the leak-proof chamber is connected with the inner cavity through the air return groove.

[0010] There are three of each of the breach, boss and air return groove.

[0011] The sealing cover includes an upper cover and a lower cover, which are buckled together to form a leak-proof chamber inside. The lower cover has at least one limiting protrusion protruding from one end surface close to the leak-proof chamber, and the water-isolating cotton abuts against the limiting protrusion.

[0012] The upper cover has a plurality of evenly distributed limiting plates protruding from the end surface close to the leak-proof chamber and surrounding the outer periphery of the water-isolating cotton. Each limiting plate is provided with an L-shaped groove that abuts against the end of the water-isolating cotton away from the lower cover.

[0013] The sealing cover includes an upper cover and a lower cover, which are buckled together to form a leak-proof chamber inside. The ink suction head is arranged on an end surface of the lower cover close to the inner cavity, and a ring platform is raised at the position of the inner wall of the lower cover corresponding to the slot.

[0014] The inner wall of the ring platform is provided with an inclined guide surface.

[0015] The beneficial effects of the present invention are as follows: the present invention coats the water-isolating cotton on the water-isolating core, which blocks the ink of the water-isolating core through the water-isolating cotton, preventing the ink of the water-isolating core from leaking out, ensuring a good user experience of the marker pen, and preventing excessive consumption caused by ink leakage, making the marker pen more durable, and the inside of the cover is provided with a leak-proof chamber for installing the water-isolating cotton, which can avoid direct contact between the water-isolating cotton and the ink in the inner cavity, and can also avoid exposure of the water-isolating cotton. When using the marker pen to write, the water-isolating cotton will not be touched, and the hands will not be dirty, providing a better writing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still fall within the scope of the present invention.

[0017] Figure 1 This is a schematic diagram of the explosion of the ink leakage-proof marker pen of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0020] Figure 4 for Figure 3 A partially enlarged schematic diagram of the structure without the pen tip, water guide core, and water-insulating cotton;

[0021] Figure 5 This is a schematic structural diagram of the lower cover in the utility model;

[0022] In the figure, 1-pen body, 2-sealing cap, 3-water guide core, 4-pen tip, 5-inner cavity, 6-leakage-proof chamber, 7-water-proof cotton, 8-ink absorber, 9-slot, 10-break, 11-boss, 12-air return groove, 13-upper cover, 14-lower cover, 15-limiting protrusion, 16-limiting piece, 17-L-shaped groove, 18-ring platform, 19-guide surface. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0024] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for the purpose of distinguishing two non-identical entities or non-identical parameters with the same name. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. Subsequent embodiments will not explain this one by one.

[0025] The directional and positional terms used in this invention, such as "upper," "lower," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are used solely to refer to the directions or positions in the accompanying drawings. Therefore, the directional and positional terms used are intended to illustrate and facilitate understanding of this invention and are not intended to limit the scope of protection of this invention.

[0026] like Figures 1 to 5 As shown, an embodiment of the present invention is an ink leakage-proof marker pen, comprising a pen body 1, a cover 2, a water-guiding core 3 and a pen tip 4. An inner cavity 5 is opened inside the pen body 1, the cover 2 is arranged on the pen body 1 and closes the inner cavity 5, the water-guiding core 3 passes through the cover 2 and extends into the inner cavity 5, the pen tip 4 is arranged at the end of the water-guiding core 3 away from the inner cavity 5, the inner cavity 5 is filled with ink, a leakage-proof chamber 6 is provided inside the cover 2, one end of the water-guiding core 3 is located in the inner cavity 5 and the other end is located in the leakage-proof chamber 6, the end of the pen tip 4 away from the water-guiding core 3 extends to the outside of the leakage-proof chamber 6, and the end of the water-guiding core 3 located in the leakage-proof chamber 6 is covered with a waterproof cotton 7.

[0027] The beneficial effects of such a setting are as follows: the utility model coats the water-isolating cotton on the water-introducing core, and blocks the ink of the water-isolating cotton through the water-isolating cotton to prevent the ink from leaking out, thereby ensuring a good user experience of the marker pen and preventing excessive consumption caused by ink leakage. The marker pen is more durable, and the inside of the cover is provided with a leak-proof chamber for installing the water-isolating cotton, which can avoid direct contact between the water-isolating cotton and the ink in the inner cavity, and can also avoid exposure of the water-isolating cotton. When using the marker pen to write, the water-isolating cotton will not be touched, and the hands will not be dirty, providing a better writing experience.

[0028] It is further provided that an ink absorber 8 is protruded from one end face of the cover 2 close to the inner cavity 5, and the ink absorber 8 is provided with a slot 9 for the water guide core 3 to extend into. The ink absorber 8 is also provided with at least one break 10, and the slot 9 is connected to the inner cavity 5 through the break 10.

[0029] The beneficial effects of this setting are as follows: the slot of the ink absorber is for the water core to extend into, reducing the shaking of the water core and making the water core absorb ink more stably; the broken hole of the ink absorber allows the ink to flow to the slot and contact the water core, which can control the appropriate flow of ink and prevent the water core from absorbing excessive ink, which is the prerequisite for preventing ink leakage from the water core.

[0030] It is further provided that the inner wall of the ink absorbing head 8 is protruded with at least one boss 11 which abuts against the end of the water guide core 3 .

[0031] The beneficial effect of such a setting is as follows: the boss abuts against the water guide core, so that there is a certain flow space between the breach and the slot, preventing the water guide core from covering the breach and affecting ink absorption.

[0032] It is further provided that the water guide core 3 is plugged into the slot 9 , and the inner wall of the slot 9 is recessed with at least one air return groove 12 , and the leak-proof chamber 6 is connected to the inner cavity 5 through the air return groove 12 .

[0033] The beneficial effects of this setting are as follows: air circulation is provided through the return air groove to achieve the effect of air return. The water-drawing core can also absorb ink in a negative pressure environment, and the marker can be used normally. The air circulation can help the water-drawing core to absorb ink better, and the depth of the return air groove is between 0.01mm and 0.05mm. The return air groove of this depth not only helps air circulation but also prevents ink from leaking into the anti-leakage groove along the return air groove.

[0034] It is further provided that there are three of each of the breach 10 , the boss 11 and the air return groove 12 .

[0035] The beneficial effects of this setting are as follows: the three-point support structure is more stable and beautiful, and the ink output of the pen tip is well controlled, making writing smoother and providing a better experience.

[0036] It is further configured that the sealing cover 2 includes an upper cover 13 and a lower cover 14, the upper cover 13 and the lower cover 14 are buckled together and form a leak-proof chamber 6 inside, and the end face of the lower cover 14 close to the leak-proof chamber 6 is protruded with at least one limiting protrusion 15, and the water-proof cotton 7 is against the limiting protrusion 15.

[0037] The beneficial effects of this arrangement are as follows: the upper cover and lower cover that are interlocked with each other have a simple structure, are easy to install, and are convenient for disassembling and assembling the water-isolating cotton. The interlocking can form a leak-proof chamber, and the limiting protrusion of the lower cover can lift the water-isolating cotton to form a certain gap between the water-isolating cotton and the end face of the lower cover for air circulation, thereby preventing the water-isolating cotton from blocking the return air groove.

[0038] It is further provided that the upper cover 13 has a plurality of evenly distributed limiting plates 16 protruding from the end surface close to the leak-proof chamber 6 and surrounding the outer periphery of the water-isolating cotton 7, and each of the limiting plates 16 is provided with an L-shaped groove 17 that abuts against the end of the water-isolating cotton 7 away from the lower cover 14.

[0039] The beneficial effects of this arrangement are as follows: the water-insulating cotton quilt is abutted between the L-shaped groove and the limiting step of the limiting plate, which effectively avoids the shaking of the water-insulating cotton and prevents the water-insulating cotton from shaking too much and causing the water-guiding core to detach from the slot, making the installation structure more stable.

[0040] It is further provided that the sealing cover 2 includes an upper cover 13 and a lower cover 14, the upper cover 13 and the lower cover 14 are buckled together and form a leak-proof chamber 6 inside, the ink suction head 8 is arranged on an end face of the lower cover 14 close to the inner cavity 5, and a ring platform 18 is raised at the position of the inner wall of the lower cover 14 corresponding to the slot 9.

[0041] The beneficial effects of such a setting are as follows: the slot is extended by the ring platform, so that the contact area between the water diversion core and the slot is larger and the plugging is more stable.

[0042] It is further provided that the inner wall of the ring platform 18 is provided with an inclined guide surface 19 .

[0043] The beneficial effect of such arrangement is as follows: when the water guide core is installed, the inclined guide surface helps the water guide core to slide into the slot, thus playing a guiding role.

[0044] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. An ink-leakage-proof marker pen, comprising a pen body (1), a cover (2), a water-inducing core (3), and a pen tip (4), wherein an inner cavity (5) is provided inside the pen body (1), the cover (2) is arranged on the pen body (1) and closes the inner cavity (5), the water-inducing core (3) penetrates the cover (2) and extends into the inner cavity (5), the pen tip (4) is arranged at an end of the water-inducing core (3) away from the inner cavity (5), and the inner cavity (5) is filled with ink, characterized in that: A leak-proof chamber (6) is provided inside the sealing cap (2); one end of the water-introducing core (3) is located in the inner cavity (5) and the other end is located in the leak-proof chamber (6); the end of the pen tip (4) away from the water-introducing core (3) extends to the outside of the leak-proof chamber (6); and the end of the water-introducing core (3) located in the leak-proof chamber (6) is covered with a water-insulating cotton (7).

2. The ink-leakage-proof marker pen according to claim 1, characterized in that: An ink absorbing head (8) is protruded from one end surface of the cover (2) close to the inner cavity (5), and the ink absorbing head (8) is provided with a slot (9) for the water guide core (3) to extend into, and the ink absorbing head (8) is also provided with at least one breach (10), and the slot (9) is communicated with the inner cavity (5) through the breach (10).

3. The ink-leakage-proof marker pen according to claim 2, characterized in that: The inner wall of the ink absorbing head (8) is protruded with at least one boss (11) that abuts against the end of the water guide core (3).

4. The ink-leakage-proof marker pen according to claim 3, characterized in that: The water guide core (3) is plugged into the slot (9), and the inner wall of the slot (9) is recessed with at least one air return groove (12). The leak-proof chamber (6) is connected to the inner cavity (5) via the air return groove (12).

5. The ink-leakage-proof marker pen according to claim 4, characterized in that: There are three of each of the breach (10), boss (11) and air return groove (12).

6. The ink-leakage-proof marker pen according to claim 1, characterized in that: The sealing cover (2) comprises an upper cover (13) and a lower cover (14), the upper cover (13) and the lower cover (14) being engaged with each other and forming a leak-proof chamber (6) therein, and at least one limiting protrusion (15) is protruded from an end surface of the lower cover (14) close to the leak-proof chamber (6), and the water-isolating cotton (7) abuts against the limiting protrusion (15).

7. The ink-leakage-proof marker pen according to claim 6, characterized in that: The upper cover (13) has a plurality of evenly distributed limiting plates (16) protruding from the end surface of the upper cover (13) close to the leak-proof chamber (6) and surrounding the outer periphery of the water-isolating cotton (7). Each of the limiting plates (16) is provided with an L-shaped groove (17) that abuts against the end of the water-isolating cotton (7) away from the lower cover (14).

8. The ink-leakage-proof marker pen according to claim 2, characterized in that: The sealing cover (2) comprises an upper cover (13) and a lower cover (14), wherein the upper cover (13) and the lower cover (14) are engaged with each other and form a leak-proof chamber (6) therein; the ink suction head (8) is arranged on an end surface of the lower cover (14) close to the inner cavity (5); and a ring platform (18) is raised on the inner wall of the lower cover (14) at a position corresponding to the slot (9).

9. The ink-leakage-proof marker pen according to claim 8, characterized in that: The inner wall of the ring platform (18) is provided with an inclined guide surface (19).

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