Direct liquid type pen

Abstract

The utility model discloses a direct liquid type pen which comprises a pen holder, an ink storage device, a water leading core and a pen point assembly installed at one end of the pen holder, an ink storage cavity is formed in the pen holder, and a stirring bead is installed in the ink storage cavity; the ink storage device is installed in one end of the penholder, and a containing hole penetrating through the two ends of the ink storage device is formed in the middle of the ink storage device. The ink guide core is assembled in the containing hole, one end of the ink guide core upwards protrudes out of the ink storage device and extends into the ink storage cavity, and the other end of the ink guide core abuts against the pen point of the pen point assembly. A first limiting step is arranged in the containing hole, a second limiting step is arranged on the water diversion core, and the second limiting step abuts against the first limiting step. A baffle used for stopping the stirring bead is arranged at the end, facing the ink storage cavity, of the ink storage device, and one end of the ink guiding core directly faces the baffle and does not make contact with the baffle. According to the ink cartridge, the ink cartridge can be effectively protected, it is guaranteed that the ink cartridge makes full contact with ink, and it is guaranteed that the ink outlet amount is stable and writing or drawing coherence is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of writing or drawing utensils, in particular to a direct liquid pen. Background Art

[0002] As writing and drawing tools continue to evolve, direct-liquid pens are gaining increasing attention on the market due to their unique design and exceptional writing or drawing performance. Currently, direct-liquid pens typically contain powdered ink, which can easily cause the powdered pigment to settle after a period of inactivity, resulting in uneven pigment distribution.

[0003] In this regard, the most common solution in the prior art is to install a stirring ball in the ink storage chamber of the pen body. The stirring ball moves freely when the pen is shaken or used, stirring the ink to keep the ink components evenly mixed. Since the water guide core of the existing direct liquid pen is installed on the ink reservoir by an interference fit, and the end of the water guide core needs to extend into the ink storage chamber to ensure full contact with the ink, during the rolling process of the stirring ball, especially when the user shakes the pen vigorously, the stirring ball will hit the water guide core, which is not only easy to damage the water guide core, but also easy to cause the water guide core to shift, affecting its ink guiding effect, resulting in unstable ink output. Too much will cause blurring, and too little will affect the continuity of writing or drawing, shortening the service life of the direct liquid pen. Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. Utility Model Content

[0004] The problem to be solved by the utility model is to provide a direct liquid pen to overcome the defect that the water guide core of the existing direct liquid pen is easily damaged or displaced by the impact of the stirring ball, thereby shortening the service life of the direct liquid pen.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a straight liquid pen, comprising:

[0006] A penholder, wherein an ink storage chamber for storing ink is provided inside the penholder, and a freely movable stirring ball is installed in the ink storage chamber;

[0007] An ink reservoir is installed in one end of the pen barrel, and a receiving hole is provided in the middle of the ink reservoir and passes through both ends of the ink reservoir;

[0008] A water guide core and a nib assembly mounted at one end of the pen barrel, wherein the water guide core is assembled in the accommodating hole, one end of the water guide core protrudes upward from the ink reservoir and extends into the ink storage cavity, and the other end of the water guide core abuts against the nib of the nib assembly;

[0009] A first limiting step formed by the contraction of the aperture is provided in the accommodating hole, and a second limiting step is provided on the water guide core, and the second limiting step rests on the first limiting step; a baffle for stopping the stirring beads is provided at one end of the ink reservoir facing the ink storage cavity, and one end of the water guide core is arranged opposite to the baffle and does not contact the baffle.

[0010] As a further improvement of the present invention, a first ink circulation hole is provided on the baffle, and the first ink circulation hole is arranged directly opposite to the water guide core.

[0011] As a further improvement of the present invention, the baffle is integrally connected to one end of the ink reservoir through multiple connecting plates, and the multiple connecting plates are distributed in a ring-shaped pattern. One end of the water-guiding core is located in the space surrounded by the multiple connecting plates, and the gap between two adjacent connecting plates forms a second ink flow hole leading to the water-guiding core.

[0012] As a further improvement of the present invention, the distance between the baffle and the inner wall of the pen barrel is smaller than the diameter of the stirring ball.

[0013] As a further improvement of the present invention, the other end of the water-guiding core abutting against the pen tip is configured to be conical.

[0014] As a further improvement of the present invention, both ends of the water diversion core are configured to be conical, and two symmetrically distributed second limiting steps are provided on the water diversion core.

[0015] As a further improvement of the present invention, the water guide core is installed in the accommodating hole in an interference fit manner.

[0016] As a further improvement of the present invention, the accommodating hole is circular, and its inner diameter gradually decreases from one end close to the pen tip toward the other end.

[0017] As a further improvement of the present invention, the pen tip assembly includes a joint with a hollow interior, the joint is tightly fitted on one end of the pen shaft and presses the ink reservoir, and the pen tip is fixed on the joint.

[0018] As a further improvement of the present invention, the water-guiding core is made of polyester fiber, acrylic fiber or POM microporous plastic; the pen tip is made of nylon fiber, polyester fiber, acrylic fiber or PE sintered material.

[0019] The beneficial effects of the utility model are as follows: the utility model provides a straight liquid pen, by providing a baffle at one end of the ink reservoir facing the ink storage chamber, the upper end of the water guide core is arranged opposite to the baffle and does not contact the baffle, the baffle is used to stop the stirring beads, and prevent the stirring beads from hitting the water guide core, thereby effectively protecting the water guide core, and will not cause damage or displacement to the water guide core, so that the ink output is stable, and the service life of the straight liquid pen is guaranteed, the water guide core does not contact the baffle, which can facilitate the flow of ink and ensure that the upper end of the water guide core is in full contact with the ink; at the same time, a first ink circulation hole is provided on the baffle, and around the upper end of the water guide core A second ink circulation hole is distributed to facilitate the flow of ink and ensure that the upper end of the water-guiding core is in full contact with the ink, so that the powder is more easily stirred by the stirring beads to avoid the occurrence of dead corners of sedimentation; in addition, a second limiting step is provided on the water-guiding core, and a first limiting step is provided in the accommodating hole of the ink reservoir. The second limiting step of the water-guiding core abuts against the first limiting step of the accommodating hole, and cooperates with the lower end of the water-guiding core to abut against the pen tip, thereby effectively limiting the axial displacement of the water-guiding core, ensuring that the water-guiding core is always in contact with the pen tip, and can continuously guide the ink to the pen tip, ensuring the stability of the ink output and the continuity of writing or drawing with the direct liquid pen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the straight liquid pen of the present utility model;

[0021] Figure 2 This is an exploded view of the direct liquid pen of the utility model;

[0022] Figure 3 This is a cross-sectional view of the straight liquid pen of the utility model;

[0023] Figure 4 This utility model is a direct liquid pen Figure 3 Enlarged view of part A in the middle;

[0024] Figure 5 This is a three-dimensional diagram of the ink reservoir, water guide core and pen head assembly in the direct liquid pen of the utility model;

[0025] Figure 6 A perspective view of the ink reservoir in the direct-liquid pen of the present invention;

[0026] Figure 7 It is a three-dimensional diagram of the water-introducing core in the straight liquid pen of the present invention.

[0027] The following description is made with reference to the accompanying drawings:

[0028] 1. Pen body; 101. Ink storage chamber; 2. Stirring ball; 3. Ink reservoir; 301. Accommodation hole; 302. Baffle; 3021. First ink circulation hole; 303. First limiting step; 304. Connecting plate; 305. Second ink circulation hole; 4. Water guide core; 401. Second limiting step; 5. Pen tip; 6. Connector; 7. Tail plug; 8. Pen cap. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] See Figures 1 to 7 The utility model provides a straight liquid pen, comprising: a pen body 1, an ink reservoir 3, a water guide core 4 and a pen head assembly.

[0031] The pen barrel 1 includes an ink chamber 101, which stores powdery ink. A freely movable stirring ball 2 is mounted within the chamber. During use or agitation of the pen, the stirring ball 2 moves freely and irregularly within the chamber 101, stirring the powdery ink and ensuring a uniform mix. This prevents uneven color and ink breakage caused by powdery sedimentation.

[0032] by Figure 1 The orientation shown is for reference only, and a tail plug 7 is also installed at the upper end of the pen barrel 1.

[0033] See Figure 3 and Figure 4 The ink reservoir 3 is installed in the lower end of the pen barrel 1. Specifically, the pen barrel 1 is provided with a stop step along the inner wall near its lower end. The step surface of the stop step is set downward, and the upper end edge of the ink reservoir 3 stops upward on the stop step. The pen head assembly is installed at the lower end of the pen barrel 1 and presses the ink reservoir 3 tightly, thereby fixing the ink reservoir 3.

[0034] It should be noted that the ink storage and air return principles of the ink reservoir 3 in this application are the same as those in the prior art. The structure of the ink reservoir 3 for storing ink and returning air is not an improvement of this application, so it will not be described in detail.

[0035] Furthermore, a receiving hole 301 is provided in the middle of the ink reservoir 3, which passes through its upper and lower ends. The water guide core 4 is assembled in the receiving hole 301. The upper end of the water guide core 4 protrudes upward from the ink reservoir 3 and extends into the ink storage cavity 101. The lower end of the water guide core 4 abuts against the pen tip 5 of the pen tip assembly.

[0036] In the present invention, the water-conducting core 4 is made of polyester fiber, acrylic fiber, or POM microporous plastic, while the pen tip 5 is made of nylon fiber, polyester fiber, acrylic fiber, or sintered PE. In this embodiment, the water-conducting core 4 is specifically made of polyester fiber, and the pen tip 5 is specifically made of nylon fiber. The water-conducting core 4 is installed in the receiving hole 301 with an interference fit, and the water-conducting core 4 and the pen tip 5 are elastically abutted against each other.

[0037] The pen tip assembly includes a hollow connector 6 , which is tightly fitted on one end of the pen barrel 1 and presses the ink reservoir 3 , and the pen tip 5 is fixedly mounted on the connector 6 .

[0038] It is worth mentioning that a first limiting step 303 is provided within the accommodating hole 301. The first limiting step 303 can be considered a step formed by the reduction of the diameter of a small section at the upper end of the accommodating hole 301. A second limiting step 401 is provided on the water guide core 4. The second limiting step 401 can be considered a step formed by the reduction of the outer diameter of a small section at the upper end of the water guide core 4. The second limiting step 401 of the water guide core 4 abuts against the first limiting step 303 of the accommodating hole 301, while the lower end of the water guide core 4 abuts against the pen tip 5. This effectively limits the axial displacement of the water guide core 4, ensuring that the water guide core 4 is in constant contact with the pen tip 5, and can continuously guide ink to the pen tip 5, ensuring stable ink output and consistent writing or drawing with the direct liquid pen.

[0039] Furthermore, a baffle 302 is provided on the end of the ink reservoir 3 facing the ink chamber 101 to stop the stirring beads 2. The baffle 302 is positioned above the water-drawing core 4, with the upper end of the water-drawing core 4 positioned opposite and not in contact with the baffle 302. Thus, when the direct-liquid pen is used or shaken, causing the stirring beads 2 to move erratically within the ink chamber 101, the baffle 302 stops the stirring beads 2, preventing them from striking the water-drawing core 4. This effectively protects the water-drawing core 4, preventing damage or displacement, ensuring stable ink output and extending the life of the direct-liquid pen. Furthermore, the water-drawing core 4 does not contact the baffle 302, leaving a gap between them to facilitate ink flow and ensure sufficient contact between the upper end of the water-drawing core 4 and the ink.

[0040] See Figure 5 and Figure 6The baffle 302 is provided with a first ink flow hole 3021, which is positioned directly opposite the water guide core 4 to facilitate ink flow and further ensure sufficient contact between the upper end of the water guide core 4 and the ink. The upper end of the water guide core 4 in the present invention is conical, with its tip extending into the first ink flow hole 3021. Preferably, a gap of at least 0.2 mm is left between the two. This structural design prevents the first ink flow hole 3021 from being blocked by sedimentation of powder in the ink. Furthermore, the powder is more easily agitated by the stirring beads 2, avoiding any dead corners where it may settle.

[0041] Of course, in other embodiments of the present invention, the upper end of the water guide core 4 may be set to be cylindrical, and its end face may be a circular plane, which can also achieve the above technical effects.

[0042] In this utility model, the baffle 302 is integrally connected to the upper end of the ink reservoir 3 via a plurality of connecting plates 304. The connecting plates 304 are arranged in a circular pattern. One end of the water guide core 4 is located in the space enclosed by the connecting plates 304. The gap between two adjacent connecting plates 304 forms a second ink flow hole 305 leading to the water guide core 4. The second ink flow hole 305 is also provided to facilitate ink flow and ensure sufficient contact between the upper end of the water guide core 4 and the ink. In this embodiment, two connecting plates 304 are specifically configured.

[0043] Preferably, the distance between the baffle 302 and the inner wall of the pen body 1 is smaller than the diameter of the stirring ball 2 to prevent the stirring ball 2 from rolling under the baffle 302 and causing jamming.

[0044] See Figure 3 and Figure 7 The other end of the water-guiding core 4 that abuts against the pen tip 5 (i.e., the lower end of the water-guiding core 4 shown in the figure) is set to a cone shape. By adopting a conical end, it is easy to generate more elastic deformation, which can reduce the assembly accuracy requirements of the water-guiding core 4 and ensure that the water-guiding core 4 can reliably contact the pen tip 5, thereby ensuring that the water-guiding core 4 can continuously guide the ink to flow to the pen tip 5.

[0045] In a preferred embodiment of the present invention, both ends of the water guide core 4 are conical, and two second limiting steps 401 are also provided on the water guide core 4. The two conical ends and the two second limiting steps 401 are symmetrically distributed. In other words, the structures of both ends of the water guide core 4 are identical, eliminating the need to distinguish the orientation of the water guide core 4 during assembly, making reassembly more convenient.

[0046] Of course, in another embodiment of the present invention, only the lower end of the water diversion core 4 can be set to a conical shape, and the upper end can be set to a cylindrical shape; at the same time, the second limiting step 401 can also be set to only one, located near the upper end of the water diversion core 4, so that the positive and negative directions of the water diversion core 4 can be distinguished during installation.

[0047] In this embodiment, the accommodating hole 301 is circular, and its inner diameter gradually decreases from one end close to the pen tip 5 to the other end. This structural design not only enables the ink reservoir 3 to be easily demolded during the injection molding process, but also facilitates the water guide core 4 to be inserted into the accommodating hole 301 from bottom to top, making it easy to install.

[0048] In addition, the direct liquid pen further comprises a pen cap 8, which is mounted on the pen barrel 1 and cooperates with the joint 6 to seal the pen tip 5 to prevent the ink from volatilizing and drying up.

[0049] The top of the ink tank 3 is provided with a baffle 302, and the upper end of the water guide core 4 is arranged opposite to the baffle 302 and does not contact the baffle 302. The baffle 302 is used to stop the stirring ball 2 to prevent the stirring ball 2 from hitting the water guide core 4, thereby effectively protecting the water guide core 4 and not causing damage or displacement to the water guide core 4, so that the ink output is stable and the service life of the straight liquid pen is guaranteed. The water guide core 4 does not contact the baffle 302, which can facilitate the flow of ink and ensure that the upper end of the water guide core 4 is in full contact with the ink. At the same time, a first ink circulation hole 3021 is provided on the baffle 302, and a second ink circulation hole 3021 is distributed around the upper end of the water guide core 4. The second ink circulation hole 305 is used to facilitate the flow of ink and ensure that the upper end of the water-guiding core 4 is in full contact with the ink, so that the powder is more easily stirred by the stirring beads 2 to avoid the occurrence of dead corners of sedimentation; in addition, a second limiting step 401 is provided on the water-guiding core 4, and a first limiting step 303 is provided in the accommodating hole 301 of the ink reservoir 3. The second limiting step 401 of the water-guiding core 4 abuts against the first limiting step 303 of the accommodating hole 301, and cooperates with the lower end of the water-guiding core 4 to abut against the pen tip 5, thereby effectively limiting the axial displacement of the water-guiding core 4, ensuring that the water-guiding core 4 is always in contact with the pen tip 5, and can continuously guide the ink to the pen tip 5, ensuring the stability of the ink output and the continuity of writing or drawing with the direct liquid pen.

[0050] In the above description, many specific details are set forth in order to fully understand the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person skilled in the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A direct liquid pen, comprising: A penholder (1), wherein an ink storage chamber (101) storing ink is provided inside the penholder (1), and a freely movable stirring ball (2) is installed in the ink storage chamber (101); An ink reservoir (3) is installed in one end of the pen holder (1), and a receiving hole (301) is provided in the middle of the ink reservoir (3) and passes through both ends thereof; A water guide core (4) and a pen tip assembly mounted on one end of the pen shaft (1), wherein the water guide core (4) is assembled in the accommodating hole (301), one end of the water guide core (4) protrudes upward from the ink reservoir (3) and extends into the ink storage cavity (101), and the other end of the water guide core (4) abuts against the pen tip (5) of the pen tip assembly; The invention is characterized in that: a first limiting step (303) formed by shrinking the aperture is provided in the accommodating hole (301), a second limiting step (401) is provided on the water guide core (4), and the second limiting step (401) abuts against the first limiting step (303); a baffle (302) for stopping the stirring beads (2) is provided at one end of the ink reservoir (3) facing the ink storage cavity (101), and one end of the water guide core (4) is arranged opposite to the baffle (302) and does not contact the baffle (302).

2. The direct liquid pen according to claim 1, characterized in that: The baffle (302) is provided with a first ink circulation hole (3021), and the first ink circulation hole (3021) is arranged opposite to the water guide core (4).

3. The direct liquid pen according to claim 1, characterized in that: The baffle (302) is integrally connected to one end of the ink reservoir (3) through a plurality of connecting plates (304), and the plurality of connecting plates (304) are distributed in a ring-shaped manner. One end of the water guide core (4) is located in a space surrounded by the plurality of connecting plates (304), and a gap between two adjacent connecting plates (304) forms a second ink flow hole (305) leading to the water guide core (4).

4. The direct liquid pen according to claim 1, characterized in that: The distance between the baffle (302) and the inner wall of the pen holder (1) is smaller than the diameter of the stirring ball (2).

5. The direct liquid pen according to claim 1, characterized in that: The other end of the water-inducing core (4) abutting against the pen tip (5) is configured in a conical shape.

6. The direct liquid pen according to claim 1, characterized in that: Both ends of the water guide core (4) are configured to be conical, and two symmetrically distributed second position-limiting steps (401) are provided on the water guide core (4).

7. The direct liquid pen according to claim 1, characterized in that: The water guide core (4) is installed in the accommodating hole (301) in an interference fit manner.

8. The direct liquid pen according to claim 7, characterized in that: The accommodating hole (301) is circular, and its inner diameter gradually decreases from one end close to the pen tip (5) toward the other end.

9. The direct liquid pen according to claim 1, characterized in that: The pen tip assembly comprises a joint (6) with a hollow interior, the joint (6) is tightly fitted on one end of the pen shaft (1) and presses the ink reservoir (3), and the pen tip (5) is fixed on the joint (6).

10. The direct liquid pen according to claim 1, characterized in that: The water-inducing core (4) is made of polyester fiber, acrylic fiber or POM microporous plastic; and the pen tip (5) is made of nylon fiber, polyester fiber, acrylic fiber or PE sintered material.

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