A direct liquid writing pen

Abstract

The present invention discloses a direct liquid writing pen, comprising: a pen tip; an ink adsorbent, which is connected to the rear end of the pen tip; an ink tube for storing ink; a water introducer, which is connected between the ink adsorbent and the ink tube, and a connecting tube is arranged on the water introducer, and more than two flow-blocking ribs extending toward the center of the connecting tube are evenly arranged on the inner wall of the front end of the connecting tube, and the height of the flow-blocking ribs is less than the radius of the connecting tube. The advantage of the direct liquid writing pen is that the flow resistance of the ink in the connecting tube is increased, so that the ink flow is more stable, and at the same time, the evenly distributed flow-blocking ribs can effectively prevent the ink from generating eddy currents or turbulence in the connecting tube, reduce the fluctuation and noise of the ink flow, and improve the uniformity and stability of the ink flow, so as to ensure the continuity and consistency of the ink supply during the writing process.

Description

Technical Field

[0001] The invention relates to the technical field of writing tools, in particular to a direct liquid writing pen. Background Art

[0002] The existing patent document CN220095991U discloses "a direct liquid writing instrument, comprising: a pen tip; an ink absorber connected to the rear end of the pen tip; an ink tube, arranged behind the ink absorber, directly storing ink; and a connecting tube, connecting the ink tube and the ink absorber, characterized in that: there are a plurality of the connecting tubes, the front end of each of the connecting tubes is opened, the ink absorber has a high-density portion and a low-density portion connected to a position behind the high-density portion, and the front end of each of the connecting tubes and the rear end of the pen tip are connected to the high-density portion." This structure has a plurality of connecting tubes. Due to the large number of connecting tubes, the inner diameter of the connecting tubes must be reduced. Figure 1 It can be seen that the connecting tube is arranged on the periphery of the rear end of the nib, resulting in less amount of ink flowing into the nib. Most of the ink is absorbed by the ink absorber, causing the nib to produce ink slowly or not at all, and the handwriting is easily interrupted. Summary of the invention

[0003] The main purpose of the present invention is to provide a direct liquid writing pen to solve the problems of small ink output from the pen tip and interrupted handwriting in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a direct liquid writing pen, comprising: a pen tip; an ink absorber, which is connected to the rear end of the pen tip; an ink tube for storing ink; a water drawer, which is connected between the ink absorber and the ink tube, a connecting tube is arranged on the water drawer, and more than two flow-blocking ribs extending toward the center of the connecting tube are arranged on the front end inner wall of the connecting tube, and the height of the flow-blocking ribs is less than the radius of the connecting tube.

[0005] Compared with the prior art, the advantage of the present invention lies in that more than two flow-blocking ribs extending toward the center of the connecting tube are evenly arranged on the inner wall of the front end of the connecting tube. The design of the flow-blocking ribs can increase the flow resistance of ink in the connecting tube, making the ink flow more stable. At the same time, the evenly distributed flow-blocking ribs can effectively prevent the ink from generating eddy currents or turbulence in the connecting tube, reduce the fluctuation and noise of the ink flow, and improve the uniformity and stability of the ink flow, thereby ensuring the continuity and consistency of the ink supply during the writing process; the height of the flow-blocking ribs is less than the radius of the connecting tube, that is, the center of the front end of the connecting tube is hollow, and the flow-blocking ribs in the connecting tube are not connected together, so that the mainstream ink channel is still in the center of the connecting tube, and the ink can be directly supplied to the center position of the ink adsorption body and then flow to the pen tip at its front end, ensuring that the flow-blocking ribs increase the ink flow resistance while not excessively hindering the flow of ink, which can not only play a role in stabilizing the ink flow, but also ensure the smooth supply of ink, avoiding the obstruction of ink flow due to excessively high flow-blocking ribs, affecting the writing effect.

[0006] Furthermore, the blocking ribs are evenly distributed along the circumference of the inner wall of the connecting tube. The blocking ribs are evenly surrounded on the inner wall of the connecting tube, which helps to evenly distribute the ink in the connecting tube, reduce the unevenness of the ink flow, and thus improve the consistency of writing.

[0007] Furthermore, at least two air return ports are evenly arranged on the inner wall of the connecting tube, and the air return ports are located between two adjacent blocking ribs. The air return ports are arranged to provide an additional flow channel for the ink, so that the ink can flow more smoothly to the ink adsorbent; the air return ports are located between the blocking ribs, which can effectively alleviate the resistance of the blocking ribs to the flow of ink, reduce the resistance loss of the flow of ink, and improve the flow efficiency and supply speed of the ink, thereby improving the writing fluency and response speed of the writing pen.

[0008] Furthermore, the blocking ribs extend from the front end to the rear end of the connecting tube. This arrangement allows the ink to be diverted over the entire length when flowing in the connecting tube, further ensuring uniform distribution of the ink and reducing dead corners of ink flow.

[0009] Furthermore, the blocking ribs are evenly arranged in three, four, five, six, seven, eight, nine or ten numbers. Providing different numbers of blocking ribs can be adjusted according to the specific requirements of the writing pen and the characteristics of the ink to achieve the best diversion effect.

[0010] Furthermore, the height of the blocking rib is 0.5-1.3 mm. Such a configuration ensures that the ink can be effectively diverted in the connecting tube without excessively hindering the flow of the ink.

[0011] Furthermore, the front end opening of the connecting tube faces the extension line of the pen tip. This arrangement ensures that the flow direction of the ink in the connecting tube is consistent with the writing direction of the pen tip, so that the ink can flow more smoothly from the connecting tube to the pen tip. This alignment method is conducive to improving the accuracy and stability of ink supply, reducing the loss and waste of ink during the flow process, thereby improving the performance and writing effect of the writing pen.

[0012] Furthermore, a sealing member is provided on the front end of the ink tube, and an opening member is provided on the water introducer, and the opening member is used to open the sealing member. The sealing member seals the ink tube, which facilitates the replacement of the ink tube. When a new ink tube is installed on the water introducer, the opening member opens the sealing member, allowing the ink to flow to the pen tip, thereby increasing the service life of the pen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a structural schematic diagram of the direct liquid writing pen of the present invention; Figure 2 This is a schematic structural diagram of a water diverter according to a first embodiment of the present invention; Figure 3 It is a structural schematic diagram of a water diverter according to a second embodiment of the present invention; Figure 4 This is a schematic structural diagram of a water diverter according to Embodiment 3 of the present invention; The above drawings include the following figure marks: The pen tip 1, the ink adsorbent 2, the ink tube 3, the sealing member 31, the water guide 4, the connecting tube 41, the flow-blocking rib 42, the air return port 43 and the top opening member 44. DETAILED DESCRIPTION

[0014] The embodiment of the present application provides a direct liquid writing pen to solve the problems of small ink output from the pen tip and interrupted handwriting in the prior art.

[0015] The technical solution in the embodiment of the present application is to solve the above-mentioned problem of small amount of ink output from the pen tip and interrupted handwriting. The overall idea is as follows: More than two flow-blocking ribs extending toward the center of the connecting tube are evenly arranged on the inner wall of the front end of the connecting tube. The design of the flow-blocking ribs can increase the flow resistance of ink in the connecting tube, making the ink flow more stable. At the same time, the evenly distributed flow-blocking ribs can effectively prevent the ink from generating eddy currents or turbulence in the connecting tube, reduce the fluctuation and noise of the ink flow, and improve the uniformity and stability of the ink flow, thereby ensuring the continuity and consistency of the ink supply during the writing process; the height of the flow-blocking ribs is less than the radius of the connecting tube, that is, the center of the front end of the connecting tube is hollow, and the flow-blocking ribs in the connecting tube are not connected together, so that the mainstream ink channel is still in the center of the connecting tube, and the ink can be directly supplied to the center position of the ink adsorbent and then flow to the pen tip at its front end, ensuring that the flow-blocking ribs increase the ink flow resistance without excessively hindering the flow of ink, which can not only stabilize the ink flow, but also ensure the smooth supply of ink, and avoid the obstruction of ink flow due to excessively high flow-blocking ribs, thereby affecting the writing effect.

[0016] 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 described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:

[0017] like Figure 1-2 As shown, a direct liquid writing pen comprises a pen tip 1, an ink absorber 2 for storing ink, an ink tube 3 and a water guide 4, wherein the ink absorber 2 is connected to the rear end of the pen tip 1, the water guide 4 is connected between the ink absorber 2 and the ink tube 3, a connecting tube 41 is arranged on the water guide 4, six blocking ribs 42 extending toward the center of the connecting tube 41 are evenly arranged on the inner wall of the front end of the connecting tube 41, and the six blocking ribs are respectively the first blocking rib, the second blocking rib, the third blocking rib, the fourth blocking rib, the fifth blocking rib and the sixth blocking rib in clockwise direction, the height of the blocking rib 42 is less than the radius of the connecting tube 41, and the blocking ribs 42 are evenly distributed along the circumference of the inner wall of the connecting tube 41. The blocking ribs 42 are evenly surrounded on the inner wall of the connecting tube 41, which helps to evenly distribute the ink in the connecting tube 41, reduce the unevenness of the ink flow, and thus improve the consistency of writing. The inner diameter of the connecting tube 41 ranges from 2 to 4.9 mm, and the height of the blocking rib is 0.5-1.3 mm. In this embodiment, the inner diameter is 4.9 mm, and the height of the blocking rib is 1.3 mm. The height of the blocking rib 42 is proportional to the inner diameter of the connecting tube 41 .

[0018] In specific implementation, three air return ports 43 are evenly arranged on the inner wall of the connecting tube 41, wherein one air return port is arranged between the first blocking rib and the second blocking rib, one air return port is arranged between the third blocking rib and the fourth blocking rib, and one air return port is arranged between the fifth blocking rib and the sixth blocking rib, with a total of three air return ports. The air return ports 43 are arranged to provide additional flow channels for the ink, so that the ink can flow more smoothly to the ink adsorbent 2; the air return ports 43 are located between the blocking ribs 42, which can effectively alleviate the resistance of the blocking ribs 42 to the flow of ink, reduce the resistance loss of the ink flow, and improve the flow efficiency and supply speed of the ink, thereby improving the writing fluency and response speed of the writing pen.

[0019] In specific implementation, the blocking rib 42 extends from the front end to the rear end of the connecting tube 41. This arrangement allows the ink to be diverted over the entire length when flowing in the connecting tube 41, further ensuring uniform distribution of the ink and reducing dead corners of ink flow.

[0020] In specific implementation, the front end opening of the connecting tube 41 faces the extension line of the pen tip 1. This arrangement ensures that the flow direction of the ink in the connecting tube 41 is consistent with the writing direction of the pen tip, so that the ink can flow more smoothly from the connecting tube 41 to the pen tip. This alignment method is conducive to improving the accuracy and stability of ink supply, reducing the loss and waste of ink during the flow process, thereby improving the performance and writing effect of the writing pen.

[0021] In a specific implementation, a sealing member 31 is provided on the front end of the ink tube 3, and a push-up member 44 is provided on the water guide 4, and the push-up member 44 is used to open the sealing member 31. The sealing member 31 seals the ink tube 3, which is convenient for replacing the ink tube. When a new ink tube 3 is installed on the water guide 4, the push-up member 44 pushes the sealing member 31 to allow the ink to flow to the pen tip, thereby increasing the service life of the pen.

[0022] In specific implementation, the front end opening of the connecting tube 41 faces the extension line of the pen tip 1. This arrangement ensures that the flow direction of the ink in the connecting tube 41 is consistent with the writing direction of the pen tip 1, so that the ink can flow more smoothly from the connecting tube 41 to the pen tip 1. This alignment method is conducive to improving the accuracy and stability of ink supply, reducing the loss and waste of ink during the flow process, thereby improving the performance and writing effect of the writing pen.

[0023] In a specific implementation, a sealing member 31 is provided on the front end of the ink tube 3, and an opening member 44 is provided on the water guide 4, and the opening member 44 is used to open the sealing member 31. The sealing member 31 seals the ink tube 3, which facilitates the replacement of the ink tube 3. When a new ink tube 3 is installed on the water guide 4, the opening member 44 opens the sealing member 31, so that the ink flows to the pen tip 1, thereby increasing the service life of the pen.

[0024] The working principle of this embodiment is: The ink tube 3 with ink is installed on the water introducer 4, and the sealing member 31 is pushed open by the pushing member 44 on the water introducer 4. The ink flows into the front section of the connecting tube 41 and flows to the ink absorber 2 through the side air return port 43. The blocking rib 42 at the front end of the connecting tube controls the ink flow rate. The ink flows into the pen tip through the ink absorber 2 until the pen tip is saturated, thereby achieving writing. The excess ink is stored in the ink absorber 2. Embodiment 2:

[0025] like Figure 3 As shown, the difference between this embodiment and the first embodiment is that eight blocking ribs 42 extending toward the center of the connecting tube 41 are arranged on the inner wall of the front end of the connecting tube 41, and the eight blocking ribs 42 are evenly distributed along the circumference of the inner wall of the connecting tube 41. The eight blocking ribs are respectively the first blocking rib, the second blocking rib, the third blocking rib, the fourth blocking rib, the fifth blocking rib, the sixth blocking rib, the seventh blocking rib and the eighth blocking rib in clockwise direction, wherein an air return port is arranged between the first blocking rib and the second blocking rib, an air return port is arranged between the third blocking rib and the fourth blocking rib, and an air return port is arranged between the fifth blocking rib and the sixth blocking rib. An air return port is set between the flow ribs, and an air return port is set between the seventh and eighth blocking ribs, with a total of four air return ports. The tops of the second and third blocking ribs are connected together to form a blocking portion. The blocking portion is triangular in shape and has a guide port in the middle to facilitate the ink to flow onto the ink adsorption body. Similarly, the tops of the fourth and fifth blocking ribs are connected together to form a blocking portion, the tops of the sixth and seventh blocking ribs are connected together to form a blocking portion, and the tops of the eighth and first blocking ribs are connected together to form a blocking portion. The structure of each blocking portion can be the same or different. Embodiment three:

[0026] like Figure 4 As shown, the difference between this embodiment and the first embodiment is that four blocking ribs 42 extending toward the center of the connecting tube 41 are arranged on the inner wall of the front end of the connecting tube 41, and the four blocking ribs are respectively the first blocking rib, the second blocking rib, the third blocking rib and the fourth blocking rib in clockwise direction, wherein an air return port is arranged between the first blocking rib and the second blocking rib, and an air return port is arranged between the third blocking rib and the fourth blocking rib. The angle between the first blocking rib and the second blocking rib is 60 degrees, and the angle between the third blocking rib and the fourth blocking rib is 60 degrees.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A direct liquid writing pen, characterized in that: The direct liquid writing pen comprises: nib; An ink absorber connected to the rear end of the pen tip; Ink tube, used for storing ink; A water guide is connected between the ink adsorbent and the ink tube. A connecting tube is arranged on the water guide. On the front inner wall of the connecting tube, more than two flow-blocking ribs extending toward the center of the connecting tube are arranged. The height of the flow-blocking ribs is smaller than the radius of the connecting tube.

2. A direct liquid writing pen according to claim 1, characterized in that: The flow-blocking ribs are evenly distributed along the circumference of the inner wall of the connecting pipe.

3. A direct liquid writing pen according to claim 1 or 2, characterized in that: At least two air return ports are evenly arranged on the inner wall of the connecting pipe, and the air return ports are located between two adjacent flow-blocking ribs.

4. A direct liquid writing pen according to claim 3, characterized in that: The flow-blocking rib extends from the front end to the rear end of the connecting pipe.

5. A direct liquid writing pen according to claim 1, 2 or 4, characterized in that: The blocking ribs are evenly arranged in three, four, six, eight or nine numbers.

6. A direct liquid writing pen according to claim 5, characterized in that: The height of the flow-blocking rib is 0.5-1.3 mm.

7. A direct liquid writing pen according to claim 1 or 2 or 4 or 6, characterized in that: The front end opening of the connecting tube faces the extension line of the pen tip.

8. A direct liquid writing pen according to claim 7, characterized in that: A sealing member is arranged on the front end of the ink tube, and an opening member is arranged on the water introducer, and the opening member is used to open the sealing member.

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