CN211710458U - Ink-adding type water pen - Google Patents

Abstract

The utility model discloses an ink-refillable water-based pen, a fiber ink-inducing core, a capillary fin and an ink storage tube; the front end of the ink storage tube is provided with a capillary fin; one end of the fiber ink-inducing core is inserted into the capillary fin In the film, the other end is led out to the tip of the pen, and the ink-refillable water-based pen further includes a piston, an ink-absorbing tube, and a rear end cover; the piston is adhered to the end of the ink-storage tube; the ink-absorbing tube is sleeved on the storage The rear section of the ink tube is outside the tube body; the piston is slidingly and sealedly matched with the inner wall of the ink absorption tube; the center of the piston is provided with a through hole connecting the ink absorption tube and the ink storage tube; the rear end cover is engaged At the end of the ink absorbing tube; the rear end cover is provided with a through ink absorbing port. The utility model has the advantages of simple structure and convenient operation.

Description

Refillable water-based pen

technical field

The utility model relates to the technical field of water-based pens, in particular to an ink-refillable water-based pen.

Background technique

At present, the commonly used pens on the market include water-based pens, gel pens and fountain pens. These three types of pens have different advantages and disadvantages. Among them, the gel pen with re-absorbing ink refill as the main feature is widely used in people's work and life because of its convenience, cleanliness and fluent writing. The difference between water-based pens and gel pens is that the ink used in water-based pens is Pure water, the paper has strong absorption, so it is smoother, but the water-based pen cannot replace the refill, which also highlights the contradiction with building a conservation-oriented society; the pen tip is made of metal, which is smooth and elastic when writing. It has always been widely praised by everyone. In addition, the pen is very suitable for the theme of energy saving and environmental protection because of its ability to refill ink repeatedly. However, high-quality pens are expensive, and students choose cheaper pens, resulting in a very poor writing experience. Problems such as complicated and difficult ink replacement procedures, ink leakage, and easy damage to the pen tip.

In the prior art, the air valve of the present application is given by changing the roller ball pen to an ink-fillable type. The following technical solutions are adopted to solve the problem of waste in the use of traditional disposable ball-point pens. Specifically, the pen tube of the original straight liquid type ball-point pen is changed to two sections, front and rear, and the end of the front section of the pen tube has internal and external threads. There is a rubber gasket, and the front end of the back section of the pen tube has internal threads, and the two sections of the pen tube are connected by internal and external threads; but it is obvious from this that this method of adding ink is complicated, not only need to unscrew the pen tube, but also have to add to the pen. Adding ink to the tube is extremely difficult due to the small diameter of the pen tube; at the same time, the structure of the threaded connection is easily eroded due to long-term immersion in the ink during the repeated use process, resulting in damage to the thread, which in turn leads to the thread. The sealing performance of the joint is reduced, which is not conducive to long-term use.

Utility model content

The technical problem to be solved by the utility model is to provide an ink-refillable water-based pen which is convenient for adding ink.

In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions: an ink-refillable water-based pen, comprising a fiber ink-inducing core, a capillary fin, and an ink storage tube; the front end of the ink storage tube is provided with a capillary fin; the One end of the fiber ink core is inserted into the capillary fin, and the other end is led out to the tip of the pen. The ink-refillable water-based pen also includes a piston, an ink suction tube, and a rear end cover; the piston is adhered to the end of the ink storage tube ; the ink absorbing tube is sleeved outside the back section of the ink storage tube; the piston is slidingly and sealedly matched with the inner wall of the ink absorbing tube; the center of the piston is provided with a connection between the ink absorbing tube and the interior of the ink storage tube a through hole; the rear end cover is clamped at the end of the ink absorbing tube; the rear end cover is provided with a through ink absorbing port.

After the ink in the refillable water-based pen is used up, open the ink-absorbing port, push the ink-absorbing tube toward the ink-storage tube, until the length of the ink-absorbing tube and the ink-storing tube is the shortest, then put the ink-absorbing tube and the back The end cap is immersed in the ink bottle, and the ink suction port is immersed below the liquid level. At this time, fix the ink suction tube with your hand, and twitch the ink storage tube with the other hand. Wait for the total length of the ink storage tube and the ink suction tube. At the longest time, stop twitching, take out the ink-absorbing tube from the ink bottle, and block the ink-absorbing port to complete the ink-filling operation of the refillable water-based pen. space, so as to make the inside reach negative pressure, and thus the negative pressure absorbs ink from the ink suction port, the structure is simple, and the operation is convenient.

Preferably, one side of the ink absorbing port is provided with a leak-proof cover matched with the ink absorbing port; the leak-proof cover is mounted on the rear end cover through a hinge.

After using the ink absorbing port to absorb ink, cover the ink absorbing port with a leak-proof cover to prevent the ink from flowing out of the ink absorbing port.

After the ink in the refillable water-based pen is used up, open the leak-proof cover to expose the ink absorption port, and push the ink absorption tube toward the ink storage tube until the length of the ink absorption tube and the ink storage tube reaches the shortest. The ink suction tube and the rear end cap are immersed in the ink bottle, and the ink suction port is immersed below the liquid level. When the total length of the ink-absorbing tube is the longest, stop twitching, take the ink-absorbing tube out of the ink bottle, close the leak-proof cover, block the ink-absorbing port, and complete the ink-filling operation of the refillable water-based pen. The space between the ink-absorbing tube and the ink-storing tube is large, so that the inside of the ink-absorbing tube can reach a negative pressure, and thus the negative pressure can absorb the ink from the ink-absorbing port. The structure is simple and the operation is convenient.

Preferably, the rear end cover is also provided with a needle tube that communicates with the inside of the rear end cap; the needle tube is rotatably connected to the ink suction port of the rear end cover; when the needle of the needle tube is in the same direction as the pen tip, the ink suction port is connected to the ink suction port of the rear end cover. The needle tube is disconnected, on the contrary, the ink suction port communicates with the needle tube.

When sucking ink, turn the needle tube so that the needle of the needle tube is opposite to the tip of the pen, and the ink suction port is connected to the needle tube. Insert the needle tube into the ink bottle, and twitch the ink storage tube to absorb the ink. After the suction, turn the needle tube to make the needle of the needle tube. Consistent with the direction of the pen tip, the ink suction port is closed at this time, which effectively prevents the ink from adhering to the outer wall of the ink suction tube, and also prevents the ink suction tube and the ink storage tube from completely penetrating into the ink bottle when it is the shortest, which is difficult to operate.

Preferably, a hemispherical shaft sleeve is fixedly connected in the ink absorbing port; a rotating node that is rotatably matched with the shaft sleeve is connected in the shaft sleeve; and the needle tube is embedded in one side of the rotating node.

Preferably, the side of the bushing facing the ink suction port has a bushing ink inlet that communicates with the ink suction port through; Card slots with the same outer diameter.

Preferably, a needle tube ink outlet communicated with the needle tube is opened on the central axis perpendicular to the length direction of the needle tube; when the needle of the needle tube is in the same direction as the pen tip of the refillable water-based pen, the opening of the needle tube ink outlet Reverse setting towards the center of the rear end cap.

Turn the needle tube over, turn the rotating node, and turn the needle of the needle tube in the opposite direction of the pen tip of the refillable water-based pen. At this time, the opening of the needle tube ink outlet on the rotating node faces the ink inlet of the bushing, and is opposite to the ink inlet of the bushing. If connected, the ink can be absorbed. On the contrary, the opening of the needle tube ink outlet of the rotating node is opposite to the ink suction port.

Preferably, starting from the center of the ink absorbing port, the rear end cover is provided with a limit groove for clamping the needle tube along the length direction of the ink refillable water-based pen; the depth of the limit groove is smaller than the wall thickness of the rear end cover.

When the needle tube is absorbing ink, the tube body is clamped in the limit groove, and after sucking and playing with ink, the tube body is also clamped in the limit groove, which is convenient to further stabilize the needle tube.

When sucking ink, rotate the needle tube, the rotating node rotates, the needle tube ink outlet opening on the rotating node faces the sleeve ink inlet port, the ink suction port, the needle tube ink outlet port, and the sleeve ink inlet port are connected, and the needle tube is inserted into the In the ink bottle, the ink storage tube is twitched to absorb the ink. After the suction is completed, the needle tube is rotated, and the rotating node is rotated. The ink outlet opening of the needle tube on the rotating node is facing the opposite direction of the ink inlet of the sleeve, and the rotating node will inject the sleeve into the ink. The nozzle is blocked, the ink outlet of the needle tube is separated from the ink inlet of the sleeve, and the ink suction port is closed at this time, which can effectively prevent the ink from sticking to the outer wall of the ink suction tube, and also prevent the ink suction tube and the ink storage tube from being the shortest. When it is completely deep into the ink bottle, it is difficult to complete the operation of absorbing ink.

Compared with the prior art, the beneficial effects of the present utility model are:

A. By increasing the space between the ink suction tube and the ink storage tube, the interior of the tube can reach a negative pressure, and the negative pressure will absorb the ink from the ink suction port, the structure is simple and the operation is convenient;

B. By setting the needle tube to absorb the ink, it can effectively prevent the ink from sticking to the outer wall of the ink-absorbing tube, and it can also prevent the ink-absorbing tube and the ink-storage tube from completely penetrating into the ink bottle when the ink-absorbing tube is the shortest, and it is difficult to complete the ink-absorbing operation. .

Description of drawings

Fig. 1 is the sectional view of the ink-fillable water-based pen in the first embodiment of the present utility model;

Fig. 2 is the sectional view of the ink-fillable water-based pen in the second embodiment of the utility model;

FIG. 3 is an isometric view of the rear end cover in the second embodiment of the present utility model;

Fig. 4 is the installation diagram of the needle tube in the second embodiment of the present utility model;

Fig. 5 is the working schematic diagram of the needle tube in the second embodiment of the utility model;

Fig. 6 is the first installation schematic diagram of the rotating node and the shaft sleeve in the second embodiment of the present invention;

FIG. 7 is a schematic diagram of the first installation of the rotating node and the shaft sleeve in the second embodiment of the present invention.

Detailed ways

In order to facilitate those skilled in the art to understand the technical solution of the present invention, the technical solution of the present invention will now be further described with reference to the accompanying drawings.

The terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

Example 1

Referring to FIG. 1 , the present embodiment discloses an ink-refillable water-based pen, which includes a fiber ink-inducing core 2 , a capillary fin 3 , and an ink storage tube 4 . The front end of the ink storage tube 4 is provided with a capillary fin 3 . One end of the fiber ink core 2 is inserted into the capillary fin 3, and the other end is drawn out to the pen tip. (This technology is an existing technology, see https://b2b.baidu.com/land?url=https%3A%2F%2Fwww.zhaosw.com%2Fproduct%2Fdetail%2F1982491%3Fbdb2b8a2d%3D1205105829790970040&query=%E7%BA %A4%E7%BB%B4%E5%BC%95%E5%A2%A8%E8%8A%AF&category=%E5%8A%9E%E5%85%AC%E6%96%87%E6%95% 99%3B%E4%B9%A6%E5%86%99%E5%B7%A5%E5%85%B7%3B%E4%B8%AD%E6%80%A7%E7%AC%94, which provides a straight-liquid rollerball pen)

The refillable water-based pen further includes a piston 5 , an ink suction tube 6 and a rear end cover 7 . The piston 5 is adhered to the end of the ink storage tube 4 . The ink suction tube 6 is sleeved outside the rear section of the ink storage tube 4 . The piston 5 is in sliding and sealing cooperation with the inner wall of the ink suction tube 6 . The center of the piston 5 is provided with a through hole 51 that communicates the ink suction tube 6 and the ink storage tube 4 . The rear end cover 7 is engaged with the end of the ink suction tube 6 . The rear end cover 7 is provided with a through ink suction port 71 .

After the ink in the refillable water-based pen is used up, open the ink absorbing port 71, and push the ink absorbing tube 6 toward the ink storage tube 4 until the length of the ink absorbing tube 6 and the ink storage tube 4 is the shortest. The ink suction tube 6 and the rear end cap 7 are immersed into the ink bottle, and the ink suction port 71 is immersed below the liquid level. When the total length of the ink storage tube 4 and the ink absorption tube 6 is the longest, stop twitching, take the ink absorption tube 6 out of the ink bottle, and block the ink absorption port 71 to complete the addition of the ink-refillable water-based pen. In ink operation, by increasing the space between the ink suction tube 6 and the ink storage tube 4, the interior of the ink suction tube 6 and the ink storage tube 4 reach a negative pressure, and the negative pressure sucks ink from the ink suction port 71. The structure is simple and the operation is convenient.

One side of the ink suction port 71 is provided with a leak-proof cover 711 matched with the ink suction port 71 . The leak-proof cover 711 is mounted on the rear end cover 7 through a hinge.

After the ink absorbing port 71 is used to absorb ink, the ink absorbing port 71 is covered with a leak-proof cover 711 to prevent the ink from flowing out from the ink absorbing port 71 .

The working principle of this embodiment is as follows: after the ink in the refillable water-based pen is used up, the leak-proof cover 711 is opened to expose the ink suction port 71, and the ink suction tube 6 is pushed toward the ink storage tube 4 until the ink is absorbed. When the length of the tube 6 and the ink storage tube 4 is the shortest, immerse the ink suction tube 6 and the rear end cap 7 into the ink bottle, and make the ink suction port 71 immerse below the liquid level. At this time, fix the ink suction by hand. Tube 6, twitch the ink storage tube 4 with the other hand, when the total length of the ink storage tube 4 and the ink suction tube 6 is the longest, stop pumping, take the ink suction tube 6 out of the ink bottle, and close the leak-proof cover 711 , block the ink suction port 71, and complete the ink filling operation of the ink-fillable water-based pen. By increasing the space between the ink suction tube 6 and the ink storage tube 4, the interior of the ink suction tube 6 and the ink storage tube 4 can reach a negative pressure, and thus the negative pressure The ink is sucked from the ink suction port 71, the structure is simple, and the operation is convenient.

Embodiment 2

Referring to FIG. 2 , the rear end cap 7 is further provided with a needle tube 9 communicating with the interior of the rear end cap 7 . The needle tube 9 is rotatably connected to the ink suction port 71 of the rear end cover 7 . When the needle head of the needle tube 9 is in the same direction as the pen tip, the ink suction port 71 is disconnected from the needle tube 9 ; otherwise, the ink suction port 71 communicates with the needle tube 9 .

When absorbing ink, rotate the needle tube 9 so that the needle head of the needle tube 9 and the pen tip face oppositely, the ink suction port 71 is connected with the needle tube 9, insert the needle tube 9 into the ink bottle, and twitch the ink storage tube 4 to absorb the ink. Rotate the needle tube 9 so that the needle head of the needle tube 9 is in the same direction as the pen tip, and the ink suction port 71 is closed at this time, which effectively prevents the ink from adhering to the outer wall of the ink suction tube 6, and also prevents the ink suction tube 6 and the ink storage tube 4 from being the shortest. , it completely penetrates into the ink bottle, making it difficult to operate.

Referring to FIG. 5 , a hemispherical shaft sleeve 1 is fixedly connected to the ink suction port 71 . The shaft sleeve 1 is connected with a rotating node 8 which is rotatably matched with the shaft sleeve 1 . A needle tube 9 is embedded in one side of the rotating node 8 .

Referring to FIG. 6 , a side of the shaft sleeve 1 facing the ink suction port 71 penetrates through a shaft sleeve ink inlet 12 which communicates with the ink suction port 71 . The two sides of the shaft sleeve 1 along the length direction of the ink-fillable water-based pen are correspondingly provided with clamping grooves 11 that are equal in size to the outer diameter of the needle tube 9 .

Referring to FIG. 2 , FIG. 4 and FIG. 7 , a needle tube ink outlet 81 communicating with the needle tube 9 is opened on the central axis of the rotation node 8 perpendicular to the length direction of the needle tube 9 . When the needle of the needle tube 9 is in the same direction as the pen tip of the refillable water-based pen, the opening of the ink outlet 81 of the needle tube is arranged in the opposite direction from the center of the rear end cover 7 .

Flip the needle tube 9, turn the rotating node 8, and turn the needle of the needle tube 9 in the opposite direction of the pen tip of the ink-refillable water-based pen. At this time, the needle tube ink outlet 81 on the rotating node 8 opens toward the sleeve ink inlet 12, and It is connected to the ink inlet port 12 of the shaft sleeve to absorb ink. On the contrary, the ink outlet 81 of the needle tube of the rotating node 8 is opened in the opposite direction toward the ink suction port 71, and the part of the rotating node 8 opposite to the ink outlet 81 of the needle tube blocks the shaft. Cover the ink inlet 12 to prevent ink leakage.

Referring to FIG. 3 , starting from the center of the ink absorbing port 71 , the rear end cover 7 has a limit groove 72 for clamping the needle tube 9 penetrating along the length direction of the ink-refillable water-based pen. The depth of the limiting groove 72 is smaller than the wall thickness of the rear end cover 7 .

When the needle tube 9 is absorbing ink, the tube body is clamped in the limiting groove 72 , and after sucking and playing with the ink, the tube body is also clamped in the limiting groove 72 , so as to further stabilize the needle tube 9 .

When sucking ink, rotate the needle tube 9, the rotating node 8 rotates, the needle tube ink outlet 81 on the rotating node 8 opens toward the bushing ink inlet 12, the ink suction port 71, the needle tube ink outlet 81, and the bushing ink inlet 12 The three are connected, insert the needle tube 9 into the ink bottle, twitch the ink storage tube 4 to absorb the ink, after the suction is completed, rotate the needle tube 9, the rotating node 8 rotates, and the needle tube ink outlet 81 on the rotating node 8 opens towards the bushing In the reverse direction of the ink inlet 12, the rotating node 8 blocks the sleeve ink inlet 12, the needle tube ink outlet 81 is separated from the shaft sleeve ink inlet 12, and the ink suction port 71 is closed at this time, effectively preventing the ink from sticking to the The outer wall of the ink absorbing tube 6 can also prevent the ink absorbing tube 6 and the ink storage tube 4 from completely penetrating into the ink bottle when the ink absorbing tube 6 and the ink storage tube 4 are the shortest, making it difficult to complete the ink absorbing operation.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes which come within the meaning and range of equivalents of the claims are intended to be embraced within the present invention, and any reference signs in the claims shall not be construed as limiting the involved claim.

The above-mentioned embodiments only represent the embodiments of the utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments. For those skilled in the art, without departing from the concept of the present utility model, the Several deformations and improvements belong to the protection scope of the present invention.

Claims (7)

1. An ink-refillable water-based pen, including a fiber ink core, a capillary fin, and an ink storage tube; the front end of the ink storage tube is provided with a capillary fin; one end of the fiber ink core is inserted into the capillary fin , the other end is led out to the tip of the pen, and it is characterized in that: the ink-refillable water-based pen also includes a piston, an ink-absorbing tube, and a rear end cover; the piston is adhered to the end of the ink-storage tube; the ink-absorbing tube is sleeved Outside the back section of the ink storage tube; the piston is in sliding sealing fit with the inner wall of the ink absorption tube; the center of the piston is provided with a through hole connecting the ink absorption tube and the ink storage tube; the rear end cover The rear end cover is provided with a through ink absorbing port. 2 . The ink-refillable water-based pen according to claim 1 , wherein a leak-proof cover matched with the ink-absorbing port is provided on one side of the ink-absorbing port; the leak-proof cover is mounted on the Cover the rear end. 3. The ink-refillable water-based pen according to claim 1, characterized in that: the rear end cap is further provided with a needle tube communicating with the interior of the rear end cap; the needle tube is rotatably connected to the ink absorbing ink of the rear end cap In the mouth; when the needle of the needle tube is in the same direction as the pen tip, the ink suction port is disconnected from the needle tube; otherwise, the ink suction port is communicated with the needle tube. 4. The ink-refillable water-based pen according to claim 3, characterized in that: a hemispherical shaft sleeve is fixedly connected in the ink absorbing port; a rotating node that is rotatably matched with the shaft sleeve is connected in the shaft sleeve; The needle tube is embedded into one side of the rotating node. 5. The ink-refillable water-based pen according to claim 4, characterized in that: the side of the shaft sleeve facing the ink suction port is provided with a shaft sleeve ink inlet that communicates with the ink suction port; The two sides in the length direction of the ink-refillable water-based pen are correspondingly provided with card slots equal in size to the outer diameter of the needle tube. 6. The ink-refillable water-based pen according to claim 5, characterized in that: a needle tube ink outlet communicated with the needle tube is opened on the central axis perpendicular to the longitudinal direction of the needle tube; When the nibs of the refillable water-based pen are in the same direction, the opening of the ink outlet of the needle tube is set in the opposite direction to the center of the rear end cover. 7 . The refillable water-based pen according to claim 3 , wherein the rear end cover runs through a limit groove for clamping the needle tube along the length direction of the refillable water-based pen with the center of the ink suction port as the starting point. 8 . ; The depth of the limiting groove is less than the wall thickness of the rear end cover.

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