Marker pen with replaceable ink bag

Abstract

The mark pen comprises a pen shell, the ink bag, a pen cap, a pen point and a flow control mechanism, the pen point is arranged at the front end of the pen shell, and one end of the pen point is exposed out of the outer side of the pen shell; a cotton core tube, a limiting block, an internal thread and a flow control mechanism are arranged in the pen shell, the other end of the pen point is connected with the bottom of the cotton core tube, and the lower end of the flow control mechanism abuts against the limiting block; the flow control mechanism comprises a flow control part, an outlet pipe, a flow control cavity and a flow control ball, the flow control cavity is formed in the flow control part, the integrally-formed outlet pipe is arranged at the bottom of the flow control part and communicates with the flow control cavity, the outlet pipe is connected with the top of the cotton core pipe, a top end opening is formed in the top of the flow control part and communicates with the flow control cavity, and the flow control ball is arranged in the flow control cavity. A flow control ball is arranged in the flow control cavity; the ink bag is provided with an ink bag outlet end, the ink bag outlet end is inserted into the flow control cavity through the top end opening, and the ink bag is in threaded connection with the pen shell.

Description

Technical Field

[0001] The invention relates to the technical field of stationery, and in particular to a marker pen with a replaceable ink sac. Background Art

[0002] Existing markers use absorbent cotton cores, which are discarded after the ink in the cotton core is used up, which is not environmentally friendly and wastes resources. Some markers are sold in sets, each set consists of markers of different colors. If one color is used up but the other colors are not used up, another set needs to be purchased, resulting in huge waste.

[0003] In addition, after long-term use, some markers have poor ink flow control, which easily leads to ink shortage or ink leakage, affecting the user experience. Therefore, it is particularly important to design a marker that can easily replace the ink cartridge and has controllable ink flow. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the above-mentioned technology and provide a marker pen with a replaceable ink cartridge.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is a marker pen with replaceable ink sac, comprising a pen shell, an ink sac, a pen cap, a pen head and a flow control mechanism, wherein the front end of the pen shell is provided with a pen head, and one end of the pen head is exposed outside the pen shell;

[0006] The pen shell is provided with a cotton core tube, a limit block, an internal thread and a flow control mechanism, the other end of the pen head is connected to the bottom of the cotton core tube, and the lower end of the flow control mechanism abuts against the limit block;

[0007] The flow control mechanism includes a flow control member, an outlet pipe, a flow control cavity and a flow control ball. The flow control member is provided with a flow control cavity. The bottom of the flow control member is provided with an integrally formed outlet pipe, and the outlet pipe is connected to the flow control cavity. The outlet pipe is connected to the top of the cotton core tube. The top of the flow control member is provided with a top opening, and the top opening is connected to the flow control cavity. The flow control cavity is provided with a flow control ball.

[0008] The ink bag is provided with an ink bag outlet end, and the ink bag outlet end is inserted into the flow control cavity through the top opening, and the ink bag is threadedly connected with the pen shell.

[0009] Furthermore, the pen case and the pen head are in a detachable connection structure.

[0010] Furthermore, a pen cap is provided at the front end of the pen shell, and the pen shell is pluggably connected to the pen cap.

[0011] Furthermore, the side wall of the ink bag is provided with an external thread, the internal thread is arranged on the inner wall of the pen housing, and the internal thread and the external thread are arranged correspondingly.

[0012] Furthermore, the flow control cavity is a spherical inner cavity, the outlet pipe is a cylindrical structure, the flow control ball is a sphere, and the radius of the flow control ball is greater than the diameter of the outlet pipe.

[0013] Furthermore, a sealing ring is provided at the outlet end of the ink bag.

[0014] The advantages of the present invention compared with the prior art are:

[0015] 1) The marker pen is designed with a replaceable ink cartridge, thereby avoiding the disadvantage that the traditional marker pen needs to be replaced as a whole after the ink is exhausted, reducing the use cost and improving resource utilization;

[0016] 2) The innovative flow control mechanism design effectively solves the problem of difficult ink flow control through the dynamic adjustment of the flow control ball in the flow control chamber, and improves the fluency and stability of writing and drawing;

[0017] 3) The detachable design of the pen case, pen head and pen cap, as well as the threaded connection between the ink sac and the pen case, enhance the maintainability and ease of use of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a marker pen with replaceable ink sac according to the present invention;

[0019] Figure 2 It is a structural cross-sectional view of a marker pen with replaceable ink sac according to the present invention;

[0020] Figure 3 The invention discloses a marker pen with replaceable ink bag. Figure 2 Exploded diagram of

[0021] Figure 4 This is a reference for the use of a marker pen with replaceable ink sac in the present invention. Figure 1 ;

[0022] Figure 5 This is a reference for the use of a marker pen with replaceable ink sac in the present invention. Figure 2 .

[0023] As shown in the figure: 1. Pen case, 2. Ink sac, 3. Pen cap, 4. Pen tip, 5. Cotton core tube, 6. Limit block, 7. Internal thread, 8. Flow control part, 9. Outlet pipe, 10. Flow control cavity, 11. Flow control ball, 12. Ink sac outlet end, 13. External thread, 14. Sealing ring. DETAILED DESCRIPTION

[0024] The following is a further detailed description of a marker pen with replaceable ink capsule according to the present invention in conjunction with the accompanying drawings.

[0025] In conjunction with the accompanying drawings, a marker pen with a replaceable ink bag comprises a pen shell 1, an ink bag 2, a pen cap 3, a pen tip 4 and a flow control mechanism. The front end of the pen shell 1 is provided with a pen tip 4, and one end of the pen tip 4 is exposed outside the pen shell 1;

[0026] The pen housing 1 is provided with a cotton core tube 5, a stopper 6, an internal thread 7 and a flow control mechanism. The other end of the pen head 4 is connected to the bottom of the cotton core tube 5, and the lower end of the flow control mechanism abuts against the stopper 6.

[0027] The flow control mechanism includes a flow control member 8, an outlet pipe 9, a flow control cavity 10 and a flow control ball 11. The flow control member 8 is provided with a flow control cavity 10. The bottom of the flow control member 8 is provided with an integrally formed outlet pipe 9, and the outlet pipe 9 is communicated with the flow control cavity 10. The outlet pipe 9 is connected to the top of the cotton core tube 5. The top of the flow control member 8 is provided with a top opening, and the top opening is communicated with the flow control cavity 10. The flow control cavity 10 is provided with a flow control ball 11.

[0028] The ink sac 2 is provided with an ink sac outlet end 12 , and the ink sac outlet end 12 is inserted into the flow control cavity 10 through the top opening, and the ink sac 2 is threadedly connected to the pen housing 1 .

[0029] As a preferred implementation scheme of this embodiment, the pen housing 1 and the pen head 2 are detachably connected.

[0030] As a preferred implementation scheme of this embodiment, a pen cap 3 is provided at the front end of the pen housing 1, and the pen housing 1 is pluggably connected to the pen cap 3, which is convenient for users to quickly take out and store.

[0031] As a preferred implementation scheme of this embodiment, the side wall of the ink bag 2 is provided with an external thread 13, the internal thread 7 is arranged on the inner wall of the pen housing 1, and the internal thread 7 and the external thread 13 are arranged correspondingly.

[0032] As a preferred implementation scheme of this embodiment, the flow control cavity 10 is a spherical inner cavity, the outlet pipe 9 is a cylindrical structure, the flow control ball 11 is a sphere, and the radius of the flow control ball 11 is greater than the diameter of the outlet pipe 9.

[0033] As a preferred implementation scheme of this embodiment, a sealing ring 14 is provided at the outlet end of the ink bag 2 to prevent the liquid in the ink bag 2 from leaking out from the connection between the ink bag 2 and the flow control member 8.

[0034] As a preferred implementation scheme of this embodiment, the cotton core tube 5 serves as a transmission channel for ink, and its interior is filled with a material with strong ink absorption, such as a cotton core or fiber.

[0035] As a preferred implementation scheme of this embodiment, the limit block 6 is arranged in the pen housing 1 to limit the downward movement position of the flow control mechanism, thereby ensuring that the flow control mechanism can be stably installed in the pen housing 1.

[0036] When the present invention is implemented, when the user needs to replace the ink bag, first rotate the ink bag 2 counterclockwise to separate it from the pen housing 1. Then, insert the new ink bag 2 into the pen housing 1, rotate the ink bag 2 clockwise, and thread the ink bag 2 and the pen housing 1 through the external thread 13 and the internal thread 7;

[0037] The flow control mechanism does not require manual operation and adjustment by the user, and its working principle is based on gravity and the natural flow of ink. When the user writes or draws, the marker pen maintains a relatively stable posture, and the flow control ball 11 is blocked above the outlet pipe 9 due to gravity. Figure 5 As shown, no ink passes through at this time, and the ink stored in the cotton core tube 5 enables the pen tip 4 to draw lines with less ink;

[0038] When the marker pen is tilted as a whole, the position of the flow control ball 11 changes, such as Figure 4 As shown, more ink is allowed to flow into the cotton core tube 5 through the outlet tube 9, so that the pen head 4 can draw more lines with ink; when a larger flow rate is needed, the pen body is tilted and gently shaken, and the pressure is increased to accelerate the ink flow rate. The ink does not flow when the pen body is placed flat. Through the design of the flow control mechanism, the marker pen can be used for both dry painting and wet painting.

[0039] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A marker pen with a replaceable ink cartridge, characterized in that: The invention comprises a pen housing (1), an ink bag (2), a pen cap (3), a pen head (4) and a flow control mechanism, wherein the front end of the pen housing (1) is provided with a pen head (4), and one end of the pen head (4) is exposed outside the pen housing (1); The pen housing (1) is provided with a cotton core tube (5), a stop block (6), an internal thread (7) and a flow control mechanism; the other end of the pen head (4) is connected to the bottom of the cotton core tube (5), and the lower end of the flow control mechanism abuts against the stop block (6); The flow control mechanism comprises a flow control member (8), an outlet pipe (9), a flow control cavity (10) and a flow control ball (11); the flow control member (8) is provided with a flow control cavity (10); an integrally formed outlet pipe (9) is provided at the bottom of the flow control member (8), and the outlet pipe (9) is communicated with the flow control cavity (10); the outlet pipe (9) is connected to the top of the cotton core tube (5); a top opening is provided at the top of the flow control member (8), and the top opening is communicated with the flow control cavity (10); and a flow control ball (11) is provided in the flow control cavity (10); The ink bag (2) is provided with an ink bag outlet end (12), and the ink bag outlet end (12) is inserted into the flow control cavity (10) through the top opening, and the ink bag (2) is threadedly connected to the pen housing (1).

2. A marker pen with replaceable ink cartridge according to claim 1, characterized in that: The pen housing (1) and the pen head (2) are in a detachable connection structure.

3. A marker pen with replaceable ink cartridge according to claim 1, characterized in that: A pen cap (3) is provided at the front end of the pen housing (1), and the pen housing (1) and the pen cap (3) are pluggably connected.

4. A marker pen with replaceable ink cartridge according to claim 1, characterized in that: The side wall of the ink bag (2) is provided with an external thread (13), the internal thread (7) is arranged on the inner wall of the pen housing (1), and the internal thread (7) and the external thread (13) are arranged correspondingly.

5. A marker pen with replaceable ink cartridge according to claim 1, characterized in that: The flow control cavity (10) is a spherical inner cavity, the outlet pipe (9) is a cylindrical structure, the flow control ball (11) is a spherical ball, and the radius of the flow control ball (11) is greater than the diameter of the outlet pipe (9).

6. A marker pen with replaceable ink cartridge according to claim 1, characterized in that: The outlet end of the ink bag (2) is sleeved with a sealing ring (14).

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