Replaceable direct-liquid valve pen

Abstract

The utility model relates to a replaceable direct liquid valve pen, which comprises a pen holder, a pen point, water storage cotton, a front valve seat and an ink bag component, the ink bag component comprises a rear rod, a rear valve seat and a valve core, the replaceable direct liquid valve pen is mainly divided into a writing component and the ink bag component, when the ink in the pen is insufficient, the ink can be replaced only by replacing the ink bag component, and the pen is convenient to use. When the ink bag assembly is installed, the rear rod is close to the pen holder, the front valve seat is connected with the rear valve seat in a sealed mode, at the moment, the push rod penetrates through the rear valve seat to eject the valve element open and extends into the ink storage bin, ink in the ink storage bin flows to the ink storage cotton along the push rod, ink filling and writing of the pen point are facilitated, and the practicability is high. The ink bag assembly is high in structural strength, and the ink leakage problem does not need to be worried about.

Description

Technical Field

[0001] The utility model relates to the technical field of office supplies, in particular to a replaceable direct liquid valve pen. Background Art

[0002] A direct-liquid valve pen is a common writing tool. It writes smoothly and comfortably, but the characters it writes are relatively thick and the amount of ink it produces is large, which results in a large amount of ink used in the ink sac. Traditional direct-liquid pens usually have an ink-adding structure, but there are still some shortcomings. Patent No. CN202321315039.3 discloses a direct-liquid ballpoint pen with a replaceable ink sac. The replaced ink sac is sealed by a thin film, and the ink is replaced by puncturing the film. However, the structural strength of this type of ink sac is low. When squeezed by external force, ink leakage is very likely to occur, causing certain inconveniences. Summary of the Invention

[0003] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: a replaceable straight liquid valve pen, including a pen body, a pen tip, water storage cotton, a front valve seat and an ink bag assembly, the pen body is provided with an installation cavity, the pen tip, water storage cotton and front valve seat are distributed in the installation cavity from left to right in sequence, the installation cavity is detachably connected to the ink bag assembly, the ink bag assembly includes a rear rod, a rear valve seat and a valve core, the rear rod is fixedly connected to the rear valve seat, and the rear rod and the rear valve seat are combined to form an ink storage tank, one end of the valve core is clamped to the rear valve seat, and the other end is slidably connected to the rear rod, the front valve seat is provided with a push rod for opening the valve core, and a drainage groove for connecting the water storage cotton and the ink storage tank.

[0004] Adopting the above technical solution, the utility model is mainly divided into two parts: a writing component and an ink bag component. When there is not enough ink in the pen, you only need to replace the ink bag component to complete the ink change. There is no need to manually add ink, which improves the ink change efficiency. When installing the ink bag component, the rear rod is close to the pen shaft and the front valve seat is sealed with the rear valve seat. At this time, the push rod passes through the rear valve seat to push the valve core open and extend into the ink storage tank, so that the ink in the ink storage tank flows along the push rod to the water storage cotton, which is convenient for filling the pen tip with ink and writing. The ink bag component has high structural strength, and there is no need to worry about ink leakage, which improves the comfort of using this pen.

[0005] The utility model is further configured such that the front valve seat is provided with a coaxially distributed upper ring portion, a lower ring portion and a push rod, the upper ring portion, the lower ring portion and the push rod are combined to form the drainage groove, the water storage cotton is sleeved on the outer side of the upper ring portion, the rear valve seat is sleeved on the inner side of the lower ring portion, the rear valve seat is provided with an inner hole for installing the valve core, and the push rod passes through the inner hole and abuts against the valve core.

[0006] Furthermore, the rear rod and the rear valve seat are combined to form a first receiving groove for receiving the lower ring portion, and the valve core is provided with a second receiving groove for receiving the push rod.

[0007] By adopting the above technical solution, when replacing the ink bag assembly, the pen tip is turned upward and the rear rod is removed. At this time, the ink remaining in the drainage groove flows to the inner hole or the first receiving groove, thereby preventing the ink from flowing out along the surface of the rear rod and preventing the push rod from bending through the second receiving groove.

[0008] The utility model is further configured such that the pen body is provided with a first protrusion and a threaded portion in the mounting cavity, the front valve seat is clamped to the pen body via the first protrusion, the rear rod is threadedly connected to the pen body via the threaded portion, and the rear rod is provided with a first outer ring portion for limiting positioning, and the first outer ring portion abuts against the end face of the pen body.

[0009] By adopting the above technical solution, the utility model adopts a threaded connection structure to replace the ink bag assembly, which makes the disassembly and assembly of the ink bag assembly simple and convenient. The rear rod is installed in place by limiting the first outer ring part, achieving the effect of blind operation when changing ink.

[0010] The utility model is further configured such that one end of the valve core is provided with a second protrusion for clamping the inner hole, the other end is provided with a second outer ring portion for connecting to the rear rod, and one side of the second outer ring portion is provided with an open groove for ink supply.

[0011] Furthermore, the rear rod is provided with a reinforcing rib for limiting the movement of the valve core, and the reinforcing rib is located below the second outer ring portion.

[0012] By adopting the above technical solution, the valve core improves the sealing effect between the valve core and the rear valve seat through the second protrusion, thereby preventing the ink bag assembly from leaking ink during carrying.

[0013] The present invention is further configured such that the rear valve seat is provided with a third outer ring portion, and the rear rod is provided with a step surface and a third protrusion for clamping the third outer ring portion.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This utility model is mainly divided into two parts: the writing component and the ink sac component. When the ink in the pen is low, you only need to replace the ink sac component to complete the ink change, without the need to manually add ink, which improves the ink change efficiency;

[0016] 2. When installing the ink sac assembly, the rear rod is close to the pen barrel and the front valve seat is sealed with the rear valve seat. At this time, the push rod passes through the rear valve seat to push the valve core open and extend into the ink storage tank, so that the ink in the ink storage tank flows along the push rod to the water storage cotton, making it easier to fill the pen tip with ink and write. The ink changing operation is simple and there is no need to worry about ink leakage.

[0017] The embodiments of the present invention will be further described below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional view of the utility model;

[0019] Figure 2 is a cross-sectional view of the writing assembly of the present invention;

[0020] Figure 3 It is a cross-sectional view of the ink bag assembly of the present utility model;

[0021] Figure 4 For this utility model Figure 1 A partial enlarged view of the A-direction view;

[0022] Wherein: 1 - pen barrel, 2 - pen tip, 3 - water storage cotton, 4 - front valve seat, 5 - ink bag assembly, 6 - rear rod, 7 - rear valve seat, 8 - valve core, 11 - mounting chamber, 12 - ink storage chamber, 13 - drainage groove, 14 - first receiving groove, 15 - first protrusion, 16 - threaded portion, 41 - upper ring portion, 42 - lower ring portion, 43 - push rod, 61 - first outer ring portion, 62 - reinforcement rib, 63 - step surface, 64 - third protrusion, 71 - inner hole, 72 - third outer ring portion, 80 - receiving groove, 81 - second protrusion, 82 - second outer ring portion, 83 - opening groove; DETAILED DESCRIPTION

[0023] like Figure 1 As shown, the utility model provides a replaceable straight liquid valve pen, including a pen body 1, a pen tip 2, a water storage cotton 3, a front valve seat 4 and an ink bag assembly 5. The pen body 1 is provided with a mounting cavity 11, and the pen tip 2, the water storage cotton 3 and the front valve seat 4 are distributed in the mounting cavity 11 from left to right. The mounting cavity 11 is detachably connected to the ink bag assembly 5, and the ink bag assembly 5 includes a rear rod 6, a rear valve seat 7 and a valve core 8. The rear rod 6 is fixedly connected to the rear valve seat 7, and the rear rod 6 and the rear valve seat 7 are combined to form an ink storage tank 12. One end of the valve core 8 is clamped to the rear valve seat 7, and the other end is slidably connected to the rear rod 6. The front valve seat 4 is provided with a push rod 43 for opening the valve core 8, and a drainage groove 13 for connecting the water storage cotton 3 and the ink storage tank 12.

[0024] Combine Figure 2 、 3 As shown, in this embodiment, the front valve seat 4 is provided with a coaxially distributed upper ring portion 41, a lower ring portion 42 and a push rod 43, the upper ring portion 41, the lower ring portion 42 and the push rod 43 are combined to form a drainage groove 13, the water storage cotton 3 is sleeved on the outside of the upper ring portion 41, the rear valve seat 7 is sleeved on the inner side of the lower ring portion 42, the rear valve seat 7 is provided with an inner hole 71 for installing the valve core 8, the push rod 43 passes through the inner hole 71 and abuts against the valve core 8, the rear rod 6 and the rear valve seat 7 are combined to form a first accommodating groove 14 for accommodating the lower ring portion 42, the valve core 8 is provided with a second accommodating groove 80 for accommodating the push rod 43, when replacing the ink bag assembly 5, the pen head 2 is turned upward and the ink bag assembly 5 is removed, at this time, the ink remaining in the drainage groove 13 flows to the inner hole 71 or the first accommodating groove 14, thereby preventing the ink from flowing out along the surface of the rear rod 6.

[0025] In this embodiment, the pen body 1 is located in the installation cavity 11 and is provided with a first protrusion 15 and a threaded portion 16. The front valve seat 4 is clamped to the pen body 1 through the first protrusion 15. The rear rod 6 is threadedly connected to the pen body 1 through the threaded portion 16, and the rear rod 6 is provided with a first outer ring portion 61 for limiting. The first outer ring portion 61 abuts against the end face of the pen body 1. The rear rod 6 is installed in place by limiting the first outer ring portion 61, thereby achieving the effect of blind operation when changing ink.

[0026] Combine Figure 4 As shown, in this embodiment, one end of the valve core 8 is provided with a second protrusion 81 for clamping the inner hole 71, and the other end is provided with a second outer ring portion 82 for connecting to the rear rod 6. One side of the second outer ring portion 82 is provided with an opening groove 83 for ink supply, and the rear rod 6 is provided with reinforcing ribs 62 distributed in a circumference for limiting the movement range of the valve core 8. The reinforcing ribs 62 are located below the second outer ring portion 82, and the rear valve seat 7 is provided with a third outer ring portion 72. The rear rod 6 is provided with a step surface 63 and a third protrusion 64 for clamping the third outer ring portion 72.

[0027] The working principle of the present utility model is that when installing the ink bag assembly 5, by rotating the rear rod 6, the rear rod 6 is made to approach the pen body 1 through the threaded portion 16 until the first outer ring portion 61 abuts against the end face of the pen body 1. At this time, the front valve seat 4 is sealed and connected to the rear valve seat 7 through the lower ring portion 42. At this time, the push rod 43 passes through the inner hole 71 and pushes the valve core 8 open, so that the ink storage tank 12 is in an open state. The ink in the ink storage tank 12 flows along the push rod 43 to the water storage cotton 3, which is convenient for the pen head 2 to be filled with ink and write. When the ink is used up, the new ink bag assembly 5 can be replaced to complete the ink change.

[0028] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A replaceable straight liquid valve pen, characterized in that: The invention comprises a pen body (1), a pen tip (2), a water storage cotton (3), a front valve seat (4) and an ink bag assembly (5); the pen body (1) is provided with an installation cavity (11); the pen tip (2), the water storage cotton (3) and the front valve seat (4) are sequentially distributed in the installation cavity (11) from left to right; the installation cavity (11) is detachably connected to the ink bag assembly (5); the ink bag assembly (5) comprises a rear rod (6), a rear valve seat (7) and a valve core (8); the rear rod (6) is fixedly connected to the rear valve seat (7), and the rear rod (6) and the rear valve seat (7) are combined to form an ink storage bin (12); one end of the valve core (8) is clamped to the rear valve seat (7), and the other end is slidably connected to the rear rod (6); the front valve seat (4) is provided with a push rod (43) for opening the valve core (8), and a drainage groove (13) for connecting the water storage cotton (3) and the ink storage bin (12).

2. The replaceable straight liquid valve pen according to claim 1, characterized in that: The front valve seat (4) is provided with an upper ring portion (41), a lower ring portion (42) and a push rod (43) which are coaxially distributed. The upper ring portion (41), the lower ring portion (42) and the push rod (43) are combined to form the drainage groove (13). The water storage cotton (3) is sleeved on the outer side of the upper ring portion (41). The rear valve seat (7) is sleeved on the inner side of the lower ring portion (42). The rear valve seat (7) is provided with an inner hole (71) for installing the valve core (8). The push rod (43) passes through the inner hole (71) and abuts against the valve core (8).

3. The replaceable straight liquid valve pen according to claim 2, characterized in that: The rear rod (6) and the rear valve seat (7) are combined to form a first accommodating groove (14) for accommodating the lower ring portion (42), and the valve core (8) is provided with a second accommodating groove (80) for accommodating the push rod (43).

4. The replaceable direct liquid valve pen according to claim 3, characterized in that: The pen shaft (1) is located in the mounting cavity (11) and is provided with a first protrusion (15) and a threaded portion (16); the front valve seat (4) is clamped to the pen shaft (1) via the first protrusion (15); the rear rod (6) is threadedly connected to the pen shaft (1) via the threaded portion (16); and the rear rod (6) is provided with a first outer ring portion (61) for limiting, and the first outer ring portion (61) abuts against the end face of the pen shaft (1).

5. The replaceable straight liquid valve pen according to claim 2, characterized in that: One end of the valve core (8) is provided with a second protrusion (81) for clamping the inner hole (71), and the other end is provided with a second outer ring portion (82) for connecting to the rear rod (6), and one side of the second outer ring portion (82) is provided with an opening groove (83) for ink supply.

6. The replaceable straight liquid valve pen according to claim 5, characterized in that: The rear rod (6) is provided with a reinforcing rib (62) for limiting the movement of the valve core (8), and the reinforcing rib (62) is located below the second outer ring portion (82).

7. The replaceable straight liquid valve pen according to claim 2, characterized in that: The rear valve seat (7) is provided with a third outer ring portion (72), and the rear rod (6) is provided with a step surface (63) and a third protrusion (64) for clamping the third outer ring portion (72).

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