Step-shaped roll-packed core ink storage type bottle body structure and ink storage pen

Abstract

The utility model discloses a step-shaped roll-packed core ink storage type bottle body structure and an ink storage pen, the step-shaped roll-packed core ink storage type bottle body structure comprises a bottle body and a step-shaped clamping part, one end of the bottle body is provided with a bottle opening, and the bottle opening is communicated with the interior of the bottle body; the step-shaped clamping part is arranged in the bottle body in a protruding mode and located at the end, away from the bottle opening, of the bottle body. The step-shaped clamping part comprises at least two step-shaped limiting bulges, and the at least two step-shaped limiting bulges are arranged at intervals along the bottom of the bottle body; each step-shaped limiting bulge comprises a clamping boss; the at least two clamping bosses are spaced from each other to form an air passage, and the air passage is communicated with the bottle opening. The end, extending into the bottle body, of the ink pipe abuts against the at least two clamping bosses, the other end of the ink pipe is fixed to the bottle opening, so that the ink pipe is fixed relative to the bottle body, and when the end of the ink pipe abuts against the two clamping bosses, the air channel is located at the bottom end of the ink pipe. The air channel allows air flow to pass through the ink tube, so that the air pressure inside the ink tube is consistent with the air pressure outside the ink tube.

Description

Technical Field

[0001] The utility model relates to the technical field of stationery, in particular to a stepped rolled core ink storage bottle structure and an ink storage pen. Background Art

[0002] Highlighters, watercolor pens, whiteboard markers, and permanent markers are all common stationery items with coiled core ink storage. Traditional ink storage pens typically include a pen bottle, a pen cap, and an end cap. The end cap is connected to one end of the pen bottle. The end cap and the pen bottle are connected to form an inner cavity, which houses an ink tube. The inner wall of the pen bottle is formed with multiple reinforcing ribs, and the ink tube is clipped between the ribs to maintain the ink tube in place relative to the pen bottle. The end cap also has a nib. One end of the nib protrudes from the end of the pen bottle and can be used for writing, while the other end is inserted into the ink tube, allowing ink to enter the nib. The pen cap is mounted on the end cap.

[0003] Existing ink-reservoir pen bottles are generally made using an injection molding process, which not only uses a lot of materials and is expensive, but also has a single style. Furthermore, when using injection molding to produce threaded pens with tapered ends, the threaded pens are prone to problems such as mold release deformation, uneven and rough surfaces, and inward dents due to the threaded pens' tapered ends. To address these issues, pen bottles made using a blow molding process have emerged. However, since the blow molding process is an integrated molding setup, it is impossible to form reinforcing ribs on the inner wall of the bottle body, making it impossible to keep the ink tube fixed inside the bottle body and making it prone to shaking. If the ink tube is directly abutted against the bottom of the pen bottle, although the ink tube can be fixed inside the pen bottle without shaking, this fixing method causes the ends of the ink tube to be sealed by the bottom of the pen bottle, which prevents airflow from flowing between the two ends of the ink tube, affecting the ink output of the ink-reservoir pen. Utility Model Content

[0004] Aiming at the shortcomings of the existing technology, a step-shaped rolled core ink storage bottle structure and an ink storage pen are provided.

[0005] To achieve the above-mentioned purpose, the utility model provides a bottle body and a step-shaped clamping portion, wherein a bottle mouth is opened at one end of the bottle body, and the bottle mouth is connected to the interior of the bottle body; the step-shaped clamping portion is protruded in the bottle body, and the step-shaped clamping portion is located at the end of the bottle body away from the bottle mouth; the step-shaped clamping portion includes at least two step-shaped limiting protrusions, and at least two step-shaped limiting protrusions are arranged at intervals along the bottom of the bottle body; each step-shaped limiting protrusion includes a clamping boss; at least two clamping bosses are spaced from each other and form an airway, and the airway is connected to the bottle mouth.

[0006] According to one embodiment of the present invention, the stepped limiting protrusion further includes a limiting portion, which is protruded from the upper surface of the limiting boss. The limiting portion has an abutting surface, which is perpendicular to the upper surface of the clamping boss.

[0007] According to one embodiment of the present invention, the limiting portion further has a guide surface, and an included angle ∠1 is formed between the guide surface and the abutting surface, and 90°≤the included angle ∠1≤180°.

[0008] According to one embodiment of the present invention, the bottle body includes a connecting portion and a accommodating portion, the connecting portion is connected to one end of the accommodating portion, the bottle mouth is provided at the connecting portion, and the bottle mouth is communicated with the interior of the accommodating portion.

[0009] According to one embodiment of the present invention, the bottle body and the stepped clamping portion are integrally formed.

[0010] According to one embodiment of the present invention, an anti-slip structure is further included, and the anti-slip structure is provided on the outer surface of the bottle body.

[0011] According to one embodiment of the present invention, a threaded structure is provided on the outer surface of the connecting portion.

[0012] The utility model also provides an ink storage pen, comprising the above-mentioned stepped rolled core ink storage bottle structure, and also comprising an ink tube, a pen core and an end cap, the ink tube is located in the bottle body, and one end of the ink tube is respectively abutted against a plurality of clamping bosses; the end cap is connected to the bottle body, and the end cap covers the bottle mouth, one end of the pen core is passed through the end cap and connected to the ink tube; the other end of the pen core is exposed from the end cap, and an air gap is provided between the pen core and the end cap, and the air gap is connected to the air channel.

[0013] According to one embodiment of the present invention, the end cap includes a body and a plurality of reinforcing ribs, the plurality of reinforcing ribs are arranged at intervals on the inner wall of the end cap, the pen core passes through the end cap, and the outer wall of the pen core abuts against the plurality of reinforcing ribs.

[0014] According to one embodiment of the present invention, a pen cap is further included. The pen cap is arranged on one end of the bottle body close to the bottle mouth, and the pen cap is provided with an end cap and a pen core.

[0015] The beneficial effect of the present invention lies in that a stepped clamping portion is provided on the bottom of the bottle body, the stepped clamping portion includes at least two stepped limiting protrusions, and the at least two stepped limiting protrusions are spaced apart. Each stepped limiting protrusion includes a clamping boss, and the at least two clamping bosses are spaced apart to form an air channel, and the air channel is connected to the bottle mouth. One end of the ink tube extending into the bottle body abuts against the at least two clamping bosses, and the other end is fixed to the bottle mouth, so that the ink tube remains fixed relative to the bottle body, effectively preventing the ink tube from shaking inside the bottle body. When the end of the ink tube abuts against the two clamping bosses, the air channel is located at the bottom end of the ink tube. The air channel allows air to flow through the interior of the ink tube, so that the air pressure inside the ink tube is consistent with the air pressure outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 A cross-sectional view of the stepped core-wound ink storage bottle structure in Example 1;

[0018] Figure 2 Schematic diagram of the connection between the stepped core-wound ink storage bottle structure and the ink tube in Example 1;

[0019] Figure 3 is a cross-sectional view of the stepped clamping portion in Example 1;

[0020] Figure 4 It is an enlarged view of part A in Example 1;

[0021] Figure 5 A cross-sectional view of the stepped core-wound ink storage bottle structure in Example 2;

[0022] Figure 6 A three-dimensional diagram of the stepped core-wound ink storage bottle structure in Example 2;

[0023] Figure 7 Schematic diagram of the stepped core-wound ink storage bottle structure in Example 3;

[0024] Figure 8 is a cross-sectional view of the second accommodation unit in Example 3;

[0025] Figure 9 is a cross-sectional view of the ink storage pen in Example 4;

[0026] Figure 10 Schematic diagram of the connection between the end cap and the pen core in Example 4.

[0027] Description of Reference Numerals

[0028] 1-bottle body; 10-bottle mouth; 11-connecting part; 12-accommodating part; 121-first accommodating unit; 122-second accommodating unit; 2-step-shaped clamping part; 20-recessed structure; 21-step-shaped limiting protrusion; 211-clamping boss; 212-limiting part; 2121-abutting surface; 2122-guide surface; -ink tube; 4-pen refill; 40-air gap; 5-end cap; 51-body; 52-reinforcement rib; 6-pen cap; 100-air duct. DETAILED DESCRIPTION

[0029] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0030] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] Please refer to Figure 1 -picture, Figure 1 This is a cross-sectional view of the stepped core-wound ink storage bottle structure. Figure 2 The figure is a schematic diagram of the connection between a stepped core-wound ink storage bottle structure and an ink tube, and the figure is a cross-sectional view of the stepped clamping portion. This embodiment provides a stepped core-wound ink storage bottle structure, which includes a bottle body 1 and a stepped clamping portion 2. A bottle mouth 10 is provided at one end of the bottle body 1, and the stepped clamping portion 2 is protruded from the end of the bottle body 1 opposite to the bottle mouth 10. The stepped clamping portion 2 is used to limit the ink tube. Specifically, the stepped clamping portion 2 includes at least two stepped limiting protrusions 21, and the at least two stepped limiting protrusions 21 are spaced apart. Each stepped limiting protrusion 21 includes a clamping boss 211, and the at least two clamping bosses 211 are spaced apart from each other to form an air channel 100, and the air channel 100 is connected to the bottle mouth 10.

[0032] In actual use, the ink tube extends into the bottle body 1 through the bottle mouth 10. One end of the ink tube that extends into the bottle body 1 abuts against at least two latching protrusions 211, while the other end is fixed to the bottle mouth 10. This maintains the ink tube in place relative to the bottle body 1, effectively preventing it from loosening or swaying within the bottle body 1. Thus, by forming a stepped latching portion 2 at one end of the bottle body 1 opposite the bottle mouth 10, the stepped latching portion 2 abuts against the end of the ink tube, thereby securing the ink tube in place. This eliminates the need for multiple reinforcing ribs within the bottle body 1 and allows the ink tube to be securely positioned within the bottle. Furthermore, an air channel 100 is formed between the at least two latching protrusions 211. When the end of the ink tube abuts the two latching protrusions 211, the air channel 100 is located at the bottom of the ink tube. The air channel 100 allows air to flow through the interior of the ink tube, maintaining the internal air pressure consistent with the external air pressure. This allows the air flow in the ink tube to circulate, avoiding the problem of poor ink flow caused by the pressure difference between the inside and outside of the ink tube.

[0033] It should be noted that the number of stepped limiting protrusions 21 can also be two, three, etc. When there are two stepped limiting protrusions 21, the two stepped limiting protrusions 21 are disposed opposite each other at the bottom of the bottle body 1, and the two stepped limiting protrusions 21 are spaced apart to form an air channel 100. When there are three limiting protrusions 21, the three stepped limiting protrusions 21 are equidistantly spaced apart at the bottom of the bottle body 1. In this embodiment, the stepped clamping portion 2 includes a total of four stepped limiting protrusions 21. The four stepped limiting protrusions 21 are disposed on the inner side of the end of the bottle body 1 opposite the bottle mouth 10. The four stepped limiting protrusions 21 are equidistantly spaced around the bottom of the bottle body 1, and the spaced apart steps 21 form an air channel 100. When the ink tube is inserted into the bottle body 1, the end portion of the ink tube abuts against the four stepped limiting protrusions 21. The air passage 100 between the four stepped stop protrusions 21 is located at the end of the ink tube, allowing air to enter the end of the ink tube that extends into the bottle body 1. Thus, the provision of the stepped stop protrusions 21 prevents the end of the ink tube from directly contacting the bottom of the bottle body 1, thereby preventing the bottom of the bottle body 1 from blocking the ink tube.

[0034] In addition, the groove-shaped rolled core ink storage bottle structure in this embodiment can be applied to ink storage pens such as fluorescent pens, watercolor pens, whiteboard pens, and markers, and has the same beneficial effects, which will not be listed here one by one.

[0035] Please refer to Figure 1 and Figure 4 , Figure 4This is an enlarged view of section A. Furthermore, the stepped limiting protrusion 21 also includes a limiting portion 212, which is disposed on the upper surface of the engaging boss 211. Each limiting portion 212 has an abutting surface 2121, and the abutting surface 2121 and the upper surface of the engaging boss 211 are perpendicular to each other. When the ink tube is inserted into the pen bottle, the end of the ink tube abuts against each engaging boss 211, and the sidewall of the end of the ink tube that extends into the bottle body 1 abuts against the abutting surface 2121 of each limiting portion 212, thereby keeping the ink tube fixed. Thus, by providing the limiting portion 212 on the upper surface of the engaging boss 211, multiple stepped limiting protrusions 21 are circumferentially spaced apart at the bottom of the bottle body 1. When the ink tube abuts against the multiple clamping protrusions 211, the abutting surfaces 2121 of the multiple limiting portions 212 fit against the side walls of the ink tube, so that the ink tube is clamped between the multiple limiting portions 212, thereby further improving the stability of the connection between the ink tube and the stepped core-wound ink storage bottle structure.

[0036] The limiting portion 212 further includes a guide surface 2122. An included angle ∠1 is formed between the guide surface 2122 and the abutting surface 2121, with the range 90°≤∠1≤180°. This allows the guide surface 2122 to tilt toward the inside of the bottle 1. When the ink tube is inserted into the bottle 1, it falls into the engaging boss 211 along the tilted direction of the guide surface 2122, improving the accuracy of ink tube installation.

[0037] Furthermore, the bottle body 1 and the stepped engaging portion 2 are integrally formed. During the production of the bottle structure, a mold is used to extrude the end of the bottle body 1 inward to form the stepped engaging portion 2. This allows the bottle body 1 and the stepped engaging portion 2 to be integrally formed, thereby reducing raw material consumption and effectively lowering production costs.

[0038] Please refer to Figure 1 Furthermore, the bottle body 1 includes a connecting portion 11 and a receiving portion 12. One end of the connecting portion 11 is connected to the receiving portion 12, and the bottle mouth 10 is provided on the connecting portion 11. The stepped clamping portion 2 is provided inside the end of the bottle body 1 away from the connecting portion 11. In addition, the outer wall of the connecting portion 11 is provided with a threaded structure, so that the bottle body 1 can be easily connected to the end cap 5.

[0039] In one embodiment, the surface of the bottle body 1 is provided with an anti-slip structure 6. Specifically, the anti-slip structure 6 is a pattern or graphic with a concave-convex structure to increase the friction on the surface of the bottle body 1 and also serve as a decoration for the bottle body 1. In this example, the anti-slip structure 6 is integrally formed with the bottle body 1.

[0040] Example 2

[0041] Please refer to Figure 5 and Figure 6 , Figure 5 This is a cross-sectional view of the stepped core-wound ink storage bottle structure in this embodiment. Figure 6This is a three-dimensional diagram of the stepped core-wound ink storage bottle structure in this embodiment. The stepped core-wound ink storage bottle structure in this embodiment differs from that in the first embodiment in that, in this embodiment, the stepped clamping portion 2 includes two stepped limiting protrusions 21, which are spaced apart, and the air duct 100 is located between the two stepped limiting protrusions 21. Each stepped limiting protrusion 21 includes a clamping boss 211 and a limiting portion 212, the limiting portion 212 protruding from the surface of the clamping boss 211, and the clamping boss 211 and the limiting portion 212 are integrally formed. In this example, the two stepped limiting protrusions 21 are integrally formed with the bottle body 1, and each stepped limiting protrusion 21 is extruded inward from the bottom of the bottle body 1, so that a concave structure 20 is formed on the bottom surface of the bottle body 1.

[0042] Example 3

[0043] Please refer to Figure 7 and Figure 8 , Figure 7 This is a schematic diagram of the stepped core-wound ink storage bottle structure in this embodiment. Figure 8 It is a cross-sectional view of the second accommodating unit. The difference between the stepped rolled core ink storage bottle structure in this embodiment and that in the first embodiment is that the accommodating portion 12 in this embodiment includes a first accommodating unit 121 and a second accommodating unit 122. One end of the first accommodating unit 121 is connected to the connecting portion 11, and the other end of the first accommodating unit 121 is connected to the second accommodating unit 122. The connecting portion 11, the first accommodating unit 121 and the second accommodating unit 122 are connected in sequence. In this embodiment, the outer contour of the second accommodating unit 122 is semicircular. The stepped clamping portion 2 is protruding from the bottom of the second accommodating unit 122. The stepped clamping portion 2 includes two stepped limiting protrusions 21. The two stepped limiting protrusions 21 are spaced apart and arranged on opposite sides of the second accommodating unit 122. An air passage 100 is formed between the two stepped limiting protrusions 21.

[0044] Example 3

[0045] Please refer to Figure 9 and Figure 10 , Figure 9 This is a cross-sectional view of the ink storage pen. Figure 10Schematic diagram of the connection between the end cap and the refill. This embodiment provides an ink storage pen, comprising the stepped, wound-core ink storage bottle structure of Embodiment 1, an ink tube, a refill 4, and an end cap 5. The ink tube is located within the bottle 1, and one end of the ink tube abuts against a plurality of latching bosses 211, securing the ink tube within the bottle 1. The end cap 5 is connected to the bottle 1 and covers the bottle opening 10. One end of the refill passes through the end cap 5 and connects to the ink tube, while the other end of the refill is exposed outside the end cap 5 for ease of writing. Furthermore, an air gap 40 is provided between the refill and the end cap 5, and the air gap 40 is connected to the air passage 100. The air gap 40 is used to allow air to flow in and out of the bottle 1, thereby maintaining consistent air pressure inside and outside the bottle 1. As the ink in the ink tube decreases during writing, the air pressure inside the bottle 1 changes as the ink decreases, resulting in inconsistent air pressure inside and outside the bottle 1, which in turn causes the ink storage pen to dispense ink unsmoothly. The air gap 40 is provided to ensure that the air pressure inside and outside the bottle 1 remains consistent, thereby ensuring smooth ink discharge from the ink storage pen. It should be noted that the ink storage pen in this embodiment can be an ink storage pen with a coiled core ink tube, such as a fluorescent pen, a watercolor pen, a whiteboard pen, or a marker, and is not specifically limited here.

[0046] Furthermore, the end cap 5 includes a body 51 and a plurality of reinforcing ribs 52, which are spaced apart on the inner wall of the end cap 5. When the refill passes through the end cap 5, the ribs 52 abut against the outer wall of the refill 4, forming an air gap 40 between two adjacent ribs 52. Each air gap 40 communicates with the interior of the bottle 1 and the air passage 100. Furthermore, the ribs 52 and the refill 4 form an interference fit, thereby ensuring a more secure connection.

[0047] Furthermore, the ink storage pen further includes a cap 6, which covers the refill 4 and the end cap 5 and is engaged with the bottle 1. The cap 6 keeps the refill 4 moist when the ink storage pen is not in use, preventing the ink from drying up, and also prevents the end of the refill 4 exposed to the end cap 5 from being damaged by external forces when not in use.

[0048] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be included within the scope of the claims of the present invention.

Claims

1. Step-shaped rolled core ink storage bottle structure, characterized by: include: A bottle body (1) and a stepped clamping portion (2), wherein one end of the bottle body (1) is provided with a bottle mouth (10), and the bottle mouth (10) is communicated with the interior of the bottle body (1); the stepped clamping portion (2) is protruded in the bottle body (1), and the stepped clamping portion (2) is located at one end of the bottle body (1) away from the bottle mouth (10); the stepped clamping portion (2) includes at least two stepped limiting protrusions (21), and at least two of the stepped limiting protrusions (21) are spaced apart along the bottom of the bottle body (1); each of the stepped limiting protrusions (21) includes a clamping boss (211); at least two of the clamping bosses (211) are spaced apart from each other and form an air channel (100), and the air channel (100) is communicated with the bottle mouth (10).

2. The stepped core-wound ink storage bottle structure according to claim 1 is characterized in that: The step-shaped limiting protrusion (21) further comprises a limiting portion (212), the limiting portion (212) being protruded from the upper surface of the clamping boss (211), the limiting portion (212) having an abutting surface (2121), the abutting surface (2121) being perpendicular to the upper surface of the clamping boss (211).

3. The stepped core-wound ink storage bottle structure according to claim 2, characterized in that: The limiting portion (212) further comprises a guide surface (2122), and an included angle ∠1 is formed between the guide surface (2122) and the abutting surface (2121), and the included angle ∠1 is 90°≤180°.

4. The stepped core-wound ink storage bottle structure according to claim 1, characterized in that: The bottle body (1) comprises a connecting portion (11) and a accommodating portion (12), wherein the connecting portion (11) is connected to one end of the accommodating portion (12), the bottle mouth (10) is provided at the connecting portion (11), and the bottle mouth (10) is communicated with the interior of the accommodating portion (12).

5. The stepped core-wound ink storage bottle structure according to claim 1, characterized in that: The bottle body (1) and the stepped clamping portion (2) are integrally formed.

6. The stepped core-wound ink storage bottle structure according to claim 1, characterized in that: It also includes an anti-slip structure (20), which is provided on the outer surface of the bottle body (1).

7. The stepped core-wound ink storage bottle structure according to claim 4, characterized in that: The outer surface of the connecting portion (11) is provided with a thread structure.

8. An ink storage pen, characterized in that: The invention comprises a stepped rolled core ink storage bottle structure according to any one of claims 1 to 7, and further comprises an ink tube (3), a pen core (4) and an end cap (5), wherein the ink tube (3) is located in the bottle body (1), and one end of the ink tube (3) is respectively in contact with a plurality of the clamping bosses (211); the end cap (5) is connected to the bottle body (1), and the end cap (5) covers the bottle mouth (10); one end of the pen core (4) is passed through the end cap (5) and is connected to the ink tube (3); the other end of the pen core (4) is exposed from the end cap (5), and an air gap (40) is provided between the pen core (4) and the end cap (5), and the air gap (40) is communicated with the air channel (100).

9. The ink storage pen according to claim 8, characterized in that: The end cap (5) comprises a body (51) and a plurality of reinforcing ribs (52), wherein the plurality of reinforcing ribs (52) are arranged at intervals on the inner wall of the end cap (5), the pen core (4) passes through the end cap (5), and the outer wall of the pen core (4) abuts against the plurality of reinforcing ribs (52).

10. The ink storage pen according to claim 8, characterized in that: The pen cap (6) is also included. The pen cap (6) is covered on one end of the bottle body (1) close to the bottle mouth (10), and the pen cap (6) covers the end cap (5) and the pen core (4).

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