CN220662104U - Liquid leakage-proof pen refill - Google Patents

Abstract

The utility model discloses a liquid leakage preventing pen refill, which relates to the technical field of pen refills and comprises a pen barrel, a pen cover and a tail cover, wherein the pen barrel is fixedly arranged in the pen barrel, a pen point is fixedly arranged at the liquid outlet end of the pen barrel, one side of the pen point penetrates through a through hole on one side of the pen barrel, a first sealing sleeve is fixedly sleeved between the tail of the pen point and the pen barrel, one side surface of the first sealing sleeve is adhered with a second sealing sleeve, the second sealing sleeve is fixed on the inner top wall of one side of the pen barrel, the pen cover is in threaded connection with one side of the pen barrel, a liquid absorbing cotton sleeve sleeved at the liquid outlet end of the pen point is fixedly arranged on the inner bottom wall of the pen cover, pen refill liquid is filled in the pen barrel, a liquid sealing layer is filled at one side of the pen barrel, which is far away from the pen point, a pressure stabilizing cavity for liquid leakage preventing is formed in one side of the pen barrel, a first thread groove is formed in the inner surface of the lower end of the pen cover, and a first thread ring is connected in the first thread groove.

Description

Liquid leakage-proof pen refill

Technical Field

The utility model relates to the technical field of pen cores, in particular to a liquid leakage preventing pen core.

Background

The pen is a great utility model for human beings, is a tool for writing or drawing, and the pen core is an accessory of the pen and can be replaced for a plurality of times. The watercolor pen is a common drawing tool for children, is generally 12-color, 24-color, 36-color and 48-color, is packaged in boxes or bags, and the pen point is generally three types of round head, big head and soft head. The color-rich children's painting is rich in water and bright in color, is generally suitable for children's painting, and can be used as a marker pen.

The end of the refill liquid of the existing watercolor pen is provided with a liquid sealing layer, but due to the influence of external force, the condition that the refill liquid leaks out of the liquid sealing layer is still caused, and after the pen point of the refill is used for a long time, the ball of the pen point possibly has the condition that the redundant refill liquid overflows, so that the attractive appearance of writing of the pen is damaged.

Disclosure of Invention

The utility model aims to provide a liquid leakage prevention type pen refill, which solves the technical problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a leak protection liquid formula refill, includes pen bobbin, pen core tube, pen lid and tail-end cap, pen core tube fixed mounting in the inside of pen bobbin, the liquid outlet end fixed mounting of pen core tube has the nib, just one side of nib runs through one side through-hole of pen core tube, the afterbody of nib with fixed cover is equipped with first seal cover between the pen core tube, one side surface laminating of first seal cover has the second seal cover, the second seal cover is fixed in one side inner roof of pen bobbin, pen lid threaded connection in one side of pen core tube, the interior bottom wall fixed mounting of pen lid has the cover to locate the cotton cover of imbibition of nib liquid outlet end, the refill tube inside be filled with the nib liquid that links mutually of nib, the refill liquid is kept away from one side of nib is filled with the liquid sealing layer, the steady voltage cavity that is used for leak protection liquid has still been seted up to one side inside of pen core tube.

Optionally, the lower extreme internal surface of pen cap has seted up first screw thread groove, first screw thread inslot threaded connection has first screwed ring, first screwed ring fixed mounting is in one side surface of pen bobbin.

Optionally, the inner wall of one side of steady voltage cavity runs through to the inside equidistance of refill pipe has seted up a plurality of first steady voltage hole, first steady voltage hole is located the below of sealing the liquid layer.

Optionally, the opposite side inner wall of steady voltage cavity runs through to the outside equidistance of pen core tube has seted up a plurality of second steady voltage hole, the second steady voltage hole with first steady voltage hole sets up relatively, just the second steady voltage hole is located the top of first steady voltage hole.

Optionally, an anti-slip sleeve is sleeved on the outer surface of one side of the pen container tube, which is close to the pen cap.

Optionally, the inside stopper of tail pipe of pen container is equipped with the fixed block, fixed block fixed connection in the upper surface of tail cap, the afterbody inner wall of pen container pipe has seted up the second screw thread groove, second screw thread inslot threaded connection has the second screwed ring, second screwed ring fixed mounting is in the surface of tail cap.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the second sealing sleeve which is abutted against the first sealing sleeve, when a user plugs the pen refill tube into the pen container tube, the pen point passes through the through hole of the pen barrel until the first sealing sleeve is abutted against the sealing surface of the second sealing sleeve, so that the double sealing effect of the pen refill is achieved, and the liquid leakage preventing effect of the pen refill is improved.

2. According to the utility model, the liquid absorbing cotton sleeve matched with the pen point is utilized in the pen cap to absorb the excessive pen core liquid overflowed from the pen point, and the phenomenon of pen core liquid spraying caused by the way that the pen cap is directly pulled away from the pen point is avoided by screw thread rotation, so that the uniformity of liquid outlet of the pen point and the attractiveness of writing are ensured when the pen is started, and the liquid leakage preventing effect of the pen core is improved.

3. According to the utility model, when the refill is influenced by external force to damage the liquid sealing layer, the refill liquid in the refill is difficult to flow out through the first pressure stabilizing hole, even if the refill liquid flows out of the first pressure stabilizing hole, the pressure stabilizing cavity provides a buffer space for the refill liquid, and the refill liquid also can flow out of the refill tube only through the second pressure stabilizing hole, so that the difficulty is higher, most of the refill liquid flowing out of the first pressure stabilizing hole can be stored in the pressure stabilizing cavity, the difficulty of the refill liquid flowing out is increased, the service life of the refill tube is prolonged, and even if the refill tube cannot be used due to excessive refill liquid stored in the pressure stabilizing cavity, the possibility that other objects are polluted by the refill liquid due to the refill liquid flowing out is greatly reduced, so that the liquid leakage preventing effect of the refill is further improved.

Drawings

FIG. 1 is a front view of the structure of the present utility model;

FIG. 2 is a front cross-sectional view of the structure of the present utility model;

FIG. 3 is an enlarged view of the structure of the present utility model at A in FIG. 2;

fig. 4 is an enlarged view of the structure of the present utility model at A1 in fig. 2.

In the figure: 1-pen tube, 2-pen core tube, 3-pen core liquid, 4-liquid sealing layer, 5-pressure stabilizing cavity, 6-first pressure stabilizing hole, 7-second pressure stabilizing hole, 8-pen point, 9-first sealing sleeve, 10-second sealing sleeve, 11-pen cap, 12-imbibition cotton sleeve, 14-first thread groove, 15-first thread ring, 16-fixed block, 17-tail cap, 18-second thread groove, 19-second thread ring, 20-antiskid sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Embodiment one:

referring to fig. 1 to 4, the present utility model provides a technical solution: the utility model provides a leak protection liquid formula refill, including bobbin 1, refill tube 2, pen lid 11 and tail cap 17, one side surface cover that bobbin 1 is close to pen lid 11 is equipped with antiskid cover 20, bobbin 2 fixed mounting is in the inside of bobbin 1, the liquid outlet end fixed mounting of refill tube 2 has nib 8, and one side of nib 8 runs through one side through-hole of bobbin 1, fixed cover is equipped with first seal cover 9 between afterbody and the refill tube 2 of nib 8, the laminating of one side surface of first seal cover 9 has second seal cover 10, second seal cover 10 is fixed in one side internal roof of bobbin 1, pen lid 11 threaded connection is in one side of bobbin 1, first thread groove 14 has been seted up to the lower extreme internal surface of pen lid 11, first thread groove 14 internal thread connection has first thread ring 15, first thread ring 15 fixed mounting is in one side surface of bobbin 1, the inner bottom wall fixed mounting of pen lid 11 has the liquid absorbing cotton sleeve 12 of cover locating the liquid outlet end of nib 8, the refill liquid 3 that is connected with nib 8 is poured into to the inside of refill tube 2, one side that liquid 3 kept away from nib 8 has the liquid layer 4, the inside of refill tube 2 has the cavity 5 that is used for leak protection liquid to set up.

More specifically, in this embodiment, when the user plugs the pen container 2 into the pen container 1, the pen point 8 passes through the through hole of the pen container 1 until the first sealing sleeve 9 abuts against the sealing surface of the second sealing sleeve 10, so as to achieve the dual sealing effect of the pen core, improve the liquid leakage preventing effect of the pen core, and then, install the tail cap 17 at the tail end of the pen container 1 in a threaded manner, and install the pen cap 11 at the other side in a threaded manner; when a user needs to write, the pen cap 11 is rotated first, the first thread groove 14 of the pen cap 11 and the first thread ring 15 of the pen barrel 1 are disassembled in the rotation process, meanwhile, the pen cap 11 is also used for driving the liquid absorbing cotton sleeve 12 to be attached to the liquid outlet end of the pen point 8 in the rotation process, the excessive pen core liquid 3 overflowed by the pen point 8 is absorbed, the liquid sealing layer 4 in the pen barrel 2 can achieve the primary liquid leakage preventing effect, and the phenomenon that the pen cap 11 is directly pulled away from the pen core liquid 3 caused by the opening mode is worth noting by the rotation of the threads, so that the uniformity of the liquid outlet of the pen point and the attractiveness of writing are ensured when the pen is started, the liquid leakage preventing effect of the pen core is improved, and the anti-slip sleeve 20 can ensure the comfort level of finger collision of the user during writing.

Furthermore, the inner wall of one side of the pressure stabilizing cavity 5 penetrates to the inner equidistant of the refill tube 2 and is provided with a plurality of first pressure stabilizing holes 6, the first pressure stabilizing holes 6 are located below the liquid sealing layer 4, the inner wall of the other side of the pressure stabilizing cavity 5 penetrates to the outer equidistant of the refill tube 2 and is provided with a plurality of second pressure stabilizing holes 7, the second pressure stabilizing holes 7 are arranged opposite to the first pressure stabilizing holes 6, and the second pressure stabilizing holes 7 are located above the first pressure stabilizing holes 6.

It should be noted that, when the refill is affected by external force to damage the liquid sealing layer 4, so that the refill liquid 3 in the refill is leaked, the refill liquid 3 is difficult to flow out through the first voltage stabilizing hole 6, even if the refill liquid 3 flows out of the first voltage stabilizing hole 6, the voltage stabilizing cavity 5 also provides a buffer space for the refill liquid 3, and the refill liquid 3 also must flow out of the refill tube 2 through the second voltage stabilizing hole 7, so that the difficulty is greater, and most of the refill liquid 3 flowing out of the first voltage stabilizing hole 6 is stored in the voltage stabilizing cavity 5; by the arrangement, the difficulty of flowing out of the refill liquid 3 is increased, the service life of the refill tube 2 is prolonged, and even if the refill tube 2 cannot be used due to the fact that too much refill liquid 3 is stored in the pressure stabilizing cavity 5, the possibility that other objects are polluted by the refill liquid 3 due to flowing out of the refill liquid 3 is greatly reduced, so that the liquid leakage preventing effect of the refill is further improved.

Embodiment II, based on the above embodiment:

further, a fixed block 16 is plugged in the tail pipe of the refill tube 2, the fixed block 16 is fixedly connected to the upper surface of the tail cover 17, a second thread groove 18 is formed in the inner wall of the tail of the refill tube 1, a second thread ring 19 is connected in the second thread groove 18 in a threaded mode, and the second thread ring 19 is fixedly mounted on the outer surface of the tail cover 17.

More specifically, in this embodiment, after the barrel 2 is plugged into the barrel 1, the second threaded ring 19 of the tail cap 17 is screwed into the second threaded groove 18 of the barrel 1, and at the same time, the fixing block 16 also enters the tail tube of the barrel 2 until the tail cap 17 is screwed completely, and the fixing of the fixing block 16 can further ensure the stable connection effect of the barrel 2 in the barrel 1.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a leak protection liquid formula refill, includes pen bobbin (1), refill pipe (2), pen cap (11) and tail cap (17), its characterized in that: the pen comprises a pen holder body, a pen holder (2), a pen head (8) and a liquid suction cotton sleeve (12), wherein the pen holder body is fixedly arranged in the pen holder body (1), the pen head (8) is fixedly arranged at the liquid outlet end of the pen holder body (2), one side of the pen head (8) penetrates through a through hole in one side of the pen holder body (1), a first sealing sleeve (9) is fixedly sleeved between the tail of the pen head (8) and the pen holder body (2), a second sealing sleeve (10) is attached to one side surface of the first sealing sleeve (9), the second sealing sleeve (10) is fixedly arranged on one side inner top wall of the pen holder body (1), the pen cap (11) is in threaded connection with one side of the pen holder body (1), a liquid suction cotton sleeve (12) sleeved at the liquid outlet end of the pen head (8) is fixedly arranged on the inner bottom wall of the pen cap (11), a liquid sealing layer (4) is filled in one side of the pen head (8), and one side of the pen head (3) is far away from the liquid suction cotton sleeve (3), and a liquid sealing layer (5) is filled in one side of the pen head (8).

2. The fluid-tight cartridge of claim 1, wherein: the pen cap is characterized in that a first thread groove (14) is formed in the inner surface of the lower end of the pen cap (11), a first thread ring (15) is connected with the first thread groove (14) in an internal thread mode, and the first thread ring (15) is fixedly installed on the outer surface of one side of the pen container tube (1).

3. The fluid-tight cartridge of claim 1, wherein: the inner wall of one side of the pressure stabilizing cavity (5) penetrates through the refill tube (2) and is provided with a plurality of first pressure stabilizing holes (6) at equal intervals, and the first pressure stabilizing holes (6) are positioned below the liquid sealing layer (4).

4. A fluid-tight cartridge according to claim 3, characterized in that: the pen refill is characterized in that the inner wall of the other side of the pressure stabilizing cavity (5) penetrates through the outer part of the pen refill tube (2) at equal intervals, a plurality of second pressure stabilizing holes (7) are formed in the second pressure stabilizing holes (7) opposite to the first pressure stabilizing holes (6), and the second pressure stabilizing holes (7) are located above the first pressure stabilizing holes (6).

5. The fluid-tight cartridge of claim 1, wherein: an anti-skid sleeve (20) is sleeved on the outer surface of one side of the pen container tube (1) close to the pen cap (11).

6. The fluid-tight cartridge of claim 1, wherein: the pen refill is characterized in that a fixed block (16) is plugged in the tail pipe of the pen refill tube (2), the fixed block (16) is fixedly connected to the upper surface of the tail cover (17), a second thread groove (18) is formed in the inner wall of the tail of the pen refill tube (1), a second thread ring (19) is connected with the second thread groove (18) in an internal thread mode, and the second thread ring (19) is fixedly mounted on the outer surface of the tail cover (17).