CN216733645U - Scribble instrument of writing - Google Patents

Abstract

The utility model relates to a painting tool which comprises a liquid storage cavity, a painting and writing head, an air-permeable liquid guiding element and a relay liquid guiding element, wherein the relay liquid guiding element is connected with the air-permeable liquid guiding element and the painting and writing head, the air-permeable liquid guiding element comprises an air-permeable liquid guiding element body and an air-permeable liquid guiding element fluid cavity channel axially penetrating through the air-permeable liquid guiding element, the air-permeable liquid guiding element fluid cavity channel is communicated with the relay liquid guiding element and the liquid storage cavity, and the relay liquid guiding element seals a port of the air-permeable liquid guiding element fluid cavity channel communicated with the air-permeable liquid guiding element fluid cavity channel. The painting tool can effectively control the liquid to be released, and has the advantages of simple structure, smooth painting and writing and low leakage risk.

Description

Scribble instrument of writing

Technical Field

The utility model relates to a painting tool, in particular to the technical field of painting tools in the fields of writing, drawing, makeup and the like.

Background

In the existing painting and writing field, a roll core formed by coating fiber bundles with a film is generally adopted as a liquid storage material. The liquid output of the coating tool using the wrapping core as the liquid storage material is gradually reduced along with the use, and the wrapping core has the defect of large residual liquid amount.

The direct liquid type painting and writing tool adopting the plastic regulator has stable ink output and less residual ink, but the problem of liquid leakage is usually caused by the quality fluctuation of the regulator. Since the coating head is far from the ink tube and only the wick conducts liquid therebetween, if the coating head is left facing upward for a certain period of time or the coating head is used facing upward, the coating head is liable to lack liquid and function is impaired.

SUMMERY OF THE UTILITY MODEL

In order to solve some problems of the existing painting and writing tools, the utility model provides a painting and writing tool which comprises a liquid storage cavity, a painting and writing head, an air-permeable liquid guide element and a relay liquid guide element, wherein the relay liquid guide element is connected with the air-permeable liquid guide element and the painting and writing head, the air-permeable liquid guide element comprises an air-permeable liquid guide element body and an air-permeable liquid guide element fluid cavity channel axially penetrating through the air-permeable liquid guide element, the air-permeable liquid guide element fluid cavity channel is communicated with the relay liquid guide element and the liquid storage cavity, and the relay liquid guide element blocks a port of the air-permeable liquid guide element fluid cavity channel communicated with the relay liquid guide element.

Furthermore, the peripheral wall of the fluid cavity of the air-permeable liquid guide element is entirely composed of an air-permeable liquid guide element body.

Further, the body of the air-permeable liquid guiding element is made of a porous liquid guiding material.

Further, the porous drainage material is made of fibers through bonding.

Further, the porous liquid guide material is made by bonding fibers of a skin-core structure.

Further, the air permeable drainage element body comprises a porous drainage material and a non-porous material.

Further, the maximum inscribed circle diameter of the minimum cross section of the fluid cavity of the air-permeable liquid guide element is 0.1-2.0 mm.

Further, the painting tool is provided with a breathable liquid guide element sleeve on the outer peripheral wall of the breathable liquid guide element body.

Further, the air-permeable liquid guide element and the painting head are coaxially arranged.

Further, the writing instrument includes a buffer body.

Further, the buffer body and the relay liquid guiding element are formed by compressing and bonding part of fibers in the fiber bundle covered by the fibers or the films through the air-permeable liquid guiding element and the coating head.

Further, the air-permeable liquid guide member sleeve is configured to be narrowed from an upper opening to a lower opening, and/or a portion of the application head inserted into the buffer body is configured to be narrowed from the lower portion to the upper portion.

Further, the buffer body and the relay liquid leading member are formed by the air-permeable liquid leading member and a part of the writing head compression sponge.

According to the technical scheme of the utility model, the painting tool can effectively control the liquid release, and has the advantages of simple structure, smooth painting and low leakage risk.

Drawings

The following description will explain embodiments of the present invention in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic longitudinal sectional view of a writing instrument according to a first embodiment of the present invention;

FIG. 2 is an enlarged schematic cross-sectional view of a fiber of a sheath-core construction according to a first embodiment of the utility model;

FIG. 3 is an enlarged, cross-sectional view of another fiber of the sheath-core construction according to the first embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of the body of the gas permeable drainage element of FIG. 1, wherein the body is a porous drainage material;

FIG. 5 is another schematic cross-sectional view of the body of the air permeable wicking element of FIG. 1 with a porous wicking material;

FIG. 6 is a schematic cross-sectional view of the body of the air permeable drainage element of FIG. 1 including a porous drainage material and a non-porous material;

FIG. 7 is a schematic longitudinal sectional view of a second embodiment of a writing instrument according to the present invention;

FIG. 8 is a schematic longitudinal sectional view of a writing instrument according to a third embodiment of the present invention;

FIG. 9 is a schematic longitudinal sectional view of a coating tool according to a fourth embodiment of the present invention;

FIG. 10 is a schematic cross-sectional view of the air permeable drainage member of FIG. 9;

FIG. 11 is a schematic longitudinal sectional view of a fifth embodiment of a writing instrument according to the present invention;

FIG. 12 is a schematic longitudinal sectional view of a writing instrument according to a sixth embodiment of the present invention;

figure 13 is a schematic cross-sectional view of the air permeable drainage member of figure 12.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the utility model will be described in conjunction with the preferred embodiments, it is not intended that the features of the utility model be limited to these embodiments. On the contrary, the intention of the novel description to be incorporated into the embodiments is to cover alternatives or modifications which may be extended in accordance with the appended claims. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The utility model may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention.

The terms "upper", "lower", "front" and "rear" used in the following description should not be construed as limiting the present invention. In the utility model, the lower part and the front part refer to one end of the painting and writing head, and the upper part and the rear part refer to one end of the liquid storage cavity.

First embodiment

Fig. 1 is a schematic longitudinal sectional view of a coating tool according to a first embodiment of the present invention. As shown in fig. 1, the application tool 1 according to the first embodiment of the present invention includes a reservoir chamber 40, an application head 50, an air-permeable liquid-guiding member 30, and a relay liquid-guiding member 70 connecting the air-permeable liquid-guiding member 30 and the application head 50, the air-permeable liquid-guiding member 30 includes an air-permeable liquid-guiding member body 300 and an air-permeable liquid-guiding member fluid channel 301 axially penetrating the air-permeable liquid-guiding member 30, the air-permeable liquid-guiding member fluid channel 301 communicates the relay liquid-guiding member 70 with the reservoir chamber 40, and the relay liquid-guiding member 70 blocks a port of the air-permeable liquid-guiding member fluid channel 301 communicating therewith.

The liquid storage chamber 40 stores liquid to be painted, such as ink, eyeliner, etc. The replaceable liquid storage cavity 40 can be adopted, so that the components such as the coating and writing tool shell 60 and the like can be recycled, and the resource waste is reduced. The alternate reservoir 40 can be connected to the writing instrument 1 by a variety of means, such as screwing, snapping, etc.

The air permeable drainage member body 300 may be made of a porous drainage material, for example, the air permeable drainage member body 300 may be made by sintering plastic powder or the air permeable drainage member body 300 may be made by bonding fibers. The air permeable wicking element 30 may be formed from monocomponent fibers bonded with a binder or plasticizer, or may be formed from fibers in a sheath-core or side-by-side configuration, which may be filaments or staple fibers. The air permeable liquid guiding member 30 is preferably made of the core-sheath fiber 2 by thermal bonding, which is advantageous in obtaining a clean product and reducing the cost because no binder or plasticizer is added.

The fiber 2 of the sheath-core structure comprises a core layer 22 and a sheath layer 21 coated on the outer surface of the core layer 22. Fig. 2 is an enlarged schematic cross-sectional view of a fiber of a sheath-core structure according to a first embodiment of the present invention. As shown in fig. 2, the skin layer 21 and the core layer 22 are of a concentric structure.

Fig. 3 is an enlarged cross-sectional view of another fiber of the sheath-core structure according to the first embodiment of the present invention. As shown in fig. 3, the skin layer 21 and the core layer 22 are of an eccentric structure.

The melting point of the core layer 22 of the fiber 2 with the sheath-core structure is higher than that of the sheath layer 21 by more than 20 ℃, so that the core layer 22 can keep better rigidity during thermal bonding, and the forming of the air-permeable liquid guide element 30 is facilitated.

The sheath layer 21 of the fiber 2 with sheath-core structure can be common polymers, such as polyethylene, polypropylene, polylactic acid, polybutylene succinate (PBS), low-melting-point copolyester (co-PET), polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), polybutylene terephthalate (PBT), a copolymer of butylene adipate and butylene terephthalate (PBAT), polyamide, and the like. The fiber 2 of the common sheath-core structure is a bicomponent fiber, and another component can be added in the sheath layer 21 or the core layer 22 of the bicomponent fiber to modify the fiber, such as adding PBT in PET to improve the elasticity of the fiber.

The fibers from which the air permeable, liquid conductive member 30 is made have a denier of 1 to 30, for example, 1, 2, 5, 8, 10, 12, 15, 18, 20, 22, 25, 28, 30, preferably 2 to 10.

FIG. 4 is a schematic cross-sectional view of the body of the gas permeable wicking element of FIG. 1 as a porous wicking material; figure 5 is another cross-sectional view of the body of the air permeable wicking element of figure 1 with a porous wicking material. As shown in fig. 4 and 5, when air permeable drainage element body 300 is made of a porous drainage material, air permeable drainage element 30 includes at least one air permeable drainage element fluid channel 301 axially extending through air permeable drainage element 30, but may include two or more air permeable drainage element fluid channels 301 axially extending through air permeable drainage element 30.

Figure 6 is a schematic cross-sectional view of the body of the air permeable drainage element of figure 1 including a porous drainage material and a non-porous material. As shown in fig. 6, the gas permeable drainage element body 300 may also comprise a porous drainage material and a non-porous material, for example, the gas permeable drainage element body 300 is made by inserting a stainless steel capillary tube 302 into the porous drainage material, so that the gas permeable drainage element 30 has better rigidity and is convenient to assemble.

Preferably, an air-permeable liquid-guiding member sleeve 303 is provided on the outer peripheral wall of the air-permeable liquid-guiding member 30 to fix the air-permeable liquid-guiding member 30. The lower end surface of air-permeable drainage element sleeve 303 is close to the lower end surface of air-permeable drainage element body 300 or flush with the lower end surface of air-permeable drainage element body 300.

Preferably, the applicator 1 further includes an applicator housing 60 and a partition 61 for partitioning the interior space of the applicator housing 60, the space above the partition 61 being for receiving the reservoir 40. The reservoir 40 may be formed separately or may be formed by a space surrounded by the applicator housing 60 and the partition 61.

The partition 61 is formed with a partition through hole 62 for communicating the reservoir chamber 40 with the air-permeable liquid guide member 30. The air permeable, fluid-conducting member sleeve 303 may be integrally formed with the partition 61, i.e., the peripheral wall of the partition through-hole 62 extends downward to form the air permeable, fluid-conducting member sleeve 303. Of course, the air permeable, liquid conducting sleeve 303 can be formed separately and assembled to the bottom of the partition 61, and the air permeable, liquid conducting sleeve 303 is coincident with the central axis of the partition through hole 62.

In the present invention, the smallest cross section of the fluid channel 301 of the air permeable liquid guiding element has a maximum inscribed circle diameter of 0.1-2.0mm, such as 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm and 2.0 mm. When the maximum inscribed circle diameter of the minimum cross section of the fluid channel 301 of the air-permeable liquid guiding element is less than 0.1mm, the fluid channel 301 of the air-permeable liquid guiding element is difficult to manufacture; when the maximum inscribed circle diameter of the smallest cross section of the air-permeable, liquid-guiding member fluid channel 301 is larger than 2.0mm, the size of the air-permeable, liquid-guiding member 30 is too large to be used in the slim writing instrument 1.

In the present invention, the applicator 1 includes a relay fluid-conducting element 70 connecting the air-permeable fluid-conducting element 30 and the applicator head 50, the air-permeable fluid-conducting element fluid channel 301 of the air-permeable fluid-conducting element 30 communicates with the relay fluid-conducting element 70 and the reservoir chamber 40, and the relay fluid-conducting element 70 blocks the port of the air-permeable fluid-conducting element fluid channel 301 communicating therewith. The relay fluid conducting member 70 conducts fluid from the air permeable fluid conducting member 30 to the applicator head 50. The relay liquid guiding member 70 is a porous material such as sponge, fiber, nonwoven fabric, felt, etc.

In the present embodiment, the relay liquid guiding element 70 is disposed between the air-permeable liquid guiding element 30 and the applying head 50, and the lower end portion of the air-permeable liquid guiding element 30 abuts on the upper end surface of the relay liquid guiding element 70, whereby the port of the air-permeable liquid guiding element fluid channel 301 of the air-permeable liquid guiding element 30 is blocked by the relay liquid guiding element 70, and the upper end surface of the applying head 50 abuts on the lower end surface of the relay liquid guiding element 70, thereby receiving the liquid from the relay liquid guiding element 70.

As shown in FIG. 1, the applicator 1 can further include a buffer body 80, the buffer body 80 being disposed generally below the reservoir 40. The cushion body 80 may be made of a porous material such as sponge, fiber, etc. The capillary force of the buffer body 80 is set smaller than that of the relay liquid guiding member 70. The cushion body 80 may also be made of fiber-bound or film-wrapped fiber bundles.

In the present embodiment, the buffer body 80 includes a first buffer body 81 and a second buffer body 82. The relay liquid guiding member 70 is disposed between the first buffer 81 and the second buffer 82. Preferably, the first buffer 81 and the second buffer 82 have a cylindrical structure having a through hole penetrating in the axial direction. The first buffer 81 is fitted around the outer peripheral wall of the air-permeable liquid guide member sleeve 303 and abuts against the upper end surface of the relay liquid guide member 70. The second buffer 82 is disposed at a position circumferentially adjacent to the write head 50. The buffer body 80 can store liquid overflowing over the relay liquid guide member 70 and the application head 50, so that liquid leakage can be prevented. After the application tool 1 is installed, the liquid in the reservoir 40 is conducted through the air permeable liquid conducting member 30 to the relay liquid conducting member 70 and further to the application head 50. As the liquid is discharged, the negative pressure in the reservoir 40 increases, and when the pressure difference between the reservoir 40 and the outside is sufficiently high, the external air passes through the relay liquid-guiding element 70 and enters the reservoir 40 through the air-permeable liquid-guiding element fluid channel 301 of the air-permeable liquid-guiding element 30 until the pressure difference between the reservoir 40 and the outside and the capillary force of the relay liquid-guiding element 70 and the writing head 50 reach equilibrium.

During painting, the liquid is consumed in the painting head 50 after passing through the air-permeable liquid guiding element 30 and the relay liquid guiding element 70, and the external air passes through the relay liquid guiding element 70 and is supplemented into the liquid storage cavity 40 through the air-permeable liquid guiding element fluid cavity channel 301 of the air-permeable liquid guiding element 30, so that the pressure in the liquid storage cavity 40 is stable, and the painting is uniform.

When the external temperature rises or the pressure drops, the air in the liquid storage cavity 40 expands, and the liquid is led out to the relay liquid guide element 70 through the air-permeable liquid guide element 30 and then is conducted to the buffer body from the relay liquid guide element 70 for temporary storage; when the external temperature and the external pressure are recovered to normal, the relay liquid guiding element 70 with higher capillary force absorbs liquid from the buffer body because the relay liquid guiding element 70 blocks the port of the fluid cavity 301 of the air-permeable liquid guiding element communicated with the relay liquid guiding element, and the liquid in the buffer body returns to the liquid storage cavity 40 through the relay liquid guiding element 70 and the air-permeable liquid guiding element 30 in preference to air, so that the risk of liquid leakage is reduced.

Coating tool 1 can also include a coating head mount 10, coating head mount 10 being used to support coating head 50 and assembled with coating tool housing 60.

The applicator 1 can also include a sealing cap 90 for protecting and sealing the head 50 from evaporation of liquid from the head 50.

Second embodiment

FIG. 7 is a schematic longitudinal sectional view of a coating tool according to a second embodiment of the present invention. The structure of this embodiment is similar to that of the first embodiment, and the same parts as those of the first embodiment are not described again in the description of this embodiment. In the present embodiment, the applicator 1 includes only one buffer body 80, and the relay liquid guiding member 70 is located in the buffer body 80 and in contact with the buffer body 80.

In the present embodiment, the buffer body 80 is preferably cylindrical having a through hole in the axial direction, and the air-permeable liquid guiding member 30 and the application head 50 are connected to the relay liquid guiding member 70 in the through hole of the buffer body 80.

The outer peripheral wall of the air-permeable liquid guiding element 30 is provided with an air-permeable liquid guiding element sleeve 303, the inner peripheral wall of the buffer 80 can be coated on the outer peripheral wall of the air-permeable liquid guiding element sleeve 303, and meanwhile, the inner peripheral wall of the buffer 80 can also be coated on the outer peripheral wall of the coating and writing head 50.

Since both the relay liquid guiding element 70 and the applying head 50 communicate with the buffer body 80, the buffer body 80 can temporarily store the liquid overflowing from the relay liquid guiding element 70 and the applying head 50, and thus the liquid leakage can be prevented.

Third embodiment

FIG. 8 is a schematic longitudinal sectional view of a writing tool according to a third embodiment of the present invention. The structure of this embodiment is similar to that of the first embodiment, and the same parts as the first embodiment are not described again in the description of this embodiment.

As shown in fig. 8, the application tool 1 according to the third embodiment of the present invention includes a reservoir chamber 40, an application head 50, an air-permeable liquid-guiding member 30, and a relay liquid-guiding member 70 connecting the air-permeable liquid-guiding member 30 and the application head 50, the air-permeable liquid-guiding member 30 includes an air-permeable liquid-guiding member body 300 and an air-permeable liquid-guiding member fluid channel 301 axially penetrating the air-permeable liquid-guiding member 30, the air-permeable liquid-guiding member fluid channel 301 connects the relay liquid-guiding member 70 and the reservoir chamber 40, and the relay liquid-guiding member 70 blocks a port of the air-permeable liquid-guiding member fluid channel 301 communicating therewith.

In the present embodiment, the relay liquid guiding member 70 includes a first relay liquid guiding member 71 and a second relay liquid guiding member 72. The first relay liquid guiding member 71 is located in the buffer body 80 and contacts the buffer body 80. The gas permeable liquid guiding element fluid channel 301 communicates the first relay liquid guiding element 71 and the reservoir chamber 40, and the first relay liquid guiding element 71 blocks the port of the gas permeable liquid guiding element fluid channel 301 communicating therewith. The second relay liquid guide 72 connects the first relay liquid guide 71 and the application head 50. Thus, the liquid in the reservoir chamber 40 can be conducted to the writing head 50 via the gas permeable liquid guide member 30 by the first relay liquid guide member 71 and the second relay liquid guide member 72.

In the present embodiment, the applicator 1 includes only one buffer body 80. The first relay liquid guide member 71 is located in the buffer body 80 and contacts the buffer body 80. The buffer body 80 has a columnar shape having a through hole in the axial direction, and the first relay liquid guiding member 71 is disposed in the through hole of the buffer body 80 so as to contact the buffer body 80. The second relay liquid-guiding member 72 may be a liquid-guiding member such as a water-guiding core. The lower end portion of the air-permeable liquid guiding member 30 abuts on the upper end surface of the first relay liquid guiding member 71, whereby the port of the air-permeable liquid guiding member fluid channel 301 of the air-permeable liquid guiding member 30 is closed by the first relay liquid guiding member 71. The upper end of the second relay liquid guiding member 72 abuts on or is inserted into the lower end surface of the first relay liquid guiding member 71, thereby receiving the liquid from the first relay liquid guiding member 71. The lower end of the second relay liquid guiding member 72 abuts or is inserted into the head 50 to supply the liquid to the head 50.

Fourth embodiment

FIG. 9 is a schematic longitudinal sectional view of a fourth embodiment of a writing instrument according to the present invention; figure 10 is a schematic cross-sectional view of the air permeable wicking element of figure 9. The structure of this embodiment is similar to that of the first embodiment, and the same parts as the first embodiment are not described again in the description of this embodiment.

As shown in fig. 9 and 10, the application tool 1 according to the fourth embodiment of the present invention includes a reservoir chamber 40, an application head 50, an air-permeable liquid-guiding member 30, and a relay liquid-guiding member 70 connecting the air-permeable liquid-guiding member 30 and the application head 50, the air-permeable liquid-guiding member 30 includes an air-permeable liquid-guiding member body 300 and an air-permeable liquid-guiding member fluid chamber channel 301 axially penetrating the air-permeable liquid-guiding member 30, the air-permeable liquid-guiding member fluid chamber channel 301 communicates between the relay liquid-guiding member 70 and the reservoir chamber 40, and the relay liquid-guiding member 70 blocks a port of the air-permeable liquid-guiding member fluid chamber channel 301 communicating therewith.

In this embodiment, the air permeable liquid guiding element body 300 is made of a porous liquid guiding material, the air permeable liquid guiding element body 300 is made of fibers 2 with a sheath-core structure by thermal bonding, the sheath layer is made of polyethylene or co-PET, and the core layer is made of polypropylene or PET. The air permeable drainage element 30 comprises an air permeable drainage element fluid channel 301 axially penetrating the air permeable drainage element 30, and the maximum inscribed circle diameter of the minimum cross section of the air permeable drainage element fluid channel 301 is 0.1-2.0mm, and preferably 0.3-1.2 mm.

The applicator 1 further includes an air permeable, fluid-conducting element sleeve 303 that at least partially encases the air permeable, fluid-conducting element body 300, the air permeable, fluid-conducting element sleeve 303 helping to secure the air permeable, fluid-conducting element body 300. The lower end surface of air-permeable drainage element sleeve 303 is close to the lower end surface of air-permeable drainage element body 300 or flush with the lower end surface of air-permeable drainage element body 300.

In this embodiment, the writing instrument 1 is provided with a buffer body 80 below the reservoir chamber 40. The cushion body 80 and the relay fluid-guiding member 70 are formed by compressing a portion of the fibers in the fiber bundle covered with the adhesive fiber or film by the air-permeable fluid-guiding member 30 and the application head 50. That is, the air permeable liquid guiding member 30 and the head 50 compress a part of the fibers in the fiber bundle covered with the adhesive fiber or film to form the relay liquid guiding member 70, and the rest forms the buffer body 80. Therefore, in this embodiment, the relay liquid guiding member 70 has higher density and capillary force than the buffer body 80.

Specifically, in the present embodiment, the gas permeable liquid guiding element 30 and the head 50 are coaxially disposed, that is, the central axes of the gas permeable liquid guiding element 30 and the head 50 coincide. The air permeable, liquid permeable member 30 compresses a portion of the fibers in the tow of bonded fibers or film-wrapped fibers from top to bottom and the applicator head 50 compresses a portion of the fibers in the tow of bonded fibers or film-wrapped fibers from bottom to top. Thus, the compressed portion having a high density formed in the middle of the fiber bundle covered with the binder fiber or the film serves as the relay liquid guide member 70, and the remaining portion serves as the buffer body 80.

The air permeable liquid guiding element fluid channel 301 of the air permeable liquid guiding element 30 communicates the relay liquid guiding element 70 and the reservoir chamber 40, and the relay liquid guiding element 70 blocks the port of the air permeable liquid guiding element fluid channel 301 communicating therewith. The relay fluid-conducting element 70 conducts fluid from the air permeable fluid-conducting element 30 to the applicator head 50. The working principle of the writing tool 1 of the present embodiment is the same as that of embodiment 1.

When the external temperature rises or the pressure drops, the air in the reservoir chamber 40 expands, and the liquid is guided to the relay liquid guiding member 70 through the air-permeable liquid guiding member 30, and then is guided from the relay liquid guiding member 70 to the buffer body 80 to be temporarily stored. When the external temperature or pressure returns to normal, because the relay liquid guiding element 70 blocks the port of the air-permeable liquid guiding element fluid channel 301 communicated with the relay liquid guiding element, the liquid in the relay liquid guiding element 70 returns to the liquid storage cavity 40 through the relay liquid guiding element 70 and the air-permeable liquid guiding element 30 in preference to air; meanwhile, the liquid in the buffer body 80 is conducted to the relay liquid guide element 70 and returns to the liquid storage cavity 40 through the air-permeable liquid guide element 30, so that the leakage risk of the painting tool 1 when the external temperature rises or the pressure drops is reduced.

Fifth embodiment

FIG. 11 is a schematic longitudinal sectional view of a fifth embodiment of the coating tool according to the present invention. The present embodiment has a similar structure to the fourth embodiment, and the same parts as the fourth embodiment are not described again in the description of the present embodiment. In the present embodiment, the gas-permeable liquid guiding member sleeve 303 is provided to be narrower from the upper opening to the lower opening, and may be, for example, a stepped structure having a wide upper portion and a narrow lower portion in a longitudinal sectional view. Thus, air permeable drainage element sleeve 303 may compress a portion of the fibers of cushioning body 80 adjacent to air permeable drainage element 30. Since the partially compressed fibers are close to the relay liquid guiding member 70, the liquid in the buffer body 80 is favorably transferred to the relay liquid guiding member 70.

Similarly, the portion of the head 50 inserted into the buffer 80 may be configured to narrow from the bottom to the top (not shown), thereby compressing the portion of the fibers of the buffer 80 that are adjacent to the head 50, and the partially compressed fibers are adjacent to the head 50 to facilitate the transfer of liquid to the head 50.

Sixth embodiment

FIG. 12 is a schematic longitudinal sectional view of a writing instrument according to a sixth embodiment of the present invention; figure 13 is a schematic cross-sectional view of the air permeable drainage member of figure 12. The structure of this embodiment is similar to that of the first embodiment, and the same parts as those of the first embodiment are not described again in the description of this embodiment.

As shown in fig. 12 and 13, the application tool 1 according to the sixth embodiment of the present invention includes a reservoir chamber 40, an application head 50, an air-permeable liquid-guiding member 30, and a relay liquid-guiding member 70 connecting the air-permeable liquid-guiding member 30 and the application head 50, the air-permeable liquid-guiding member 30 includes an air-permeable liquid-guiding member body 300 and an air-permeable liquid-guiding member fluid chamber channel 301 axially penetrating the air-permeable liquid-guiding member 30, the air-permeable liquid-guiding member fluid chamber channel 301 communicates between the relay liquid-guiding member 70 and the reservoir chamber 40, and the relay liquid-guiding member 70 blocks a port of the air-permeable liquid-guiding member fluid chamber channel 301 communicating therewith.

In this embodiment, the air permeable liquid guiding element body 300 is made of a porous liquid guiding material, the air permeable liquid guiding element body 300 is made of a fiber 2 with a sheath-core structure by thermal bonding, the sheath layer is made of polyamide, and the core layer is made of PET. The air permeable liquid guiding element 30 comprises an air permeable liquid guiding element fluid cavity 301 axially penetrating the air permeable liquid guiding element 30, and the maximum inscribed circle diameter of the minimum cross section of the air permeable liquid guiding element fluid cavity 301 is 0.1-2.0mm, preferably 0.3-1.2 mm. The applicator 1 further includes an air-permeable fluid-conducting element sleeve 303 at least partially covering the air-permeable fluid-conducting element body 300, the air-permeable fluid-conducting element sleeve 303 being used to fix the air-permeable fluid-conducting element body 300. The lower end surface of air-permeable drainage element sleeve 303 is close to the lower end surface of air-permeable drainage element body 300 or flush with the lower end surface of air-permeable drainage element body 300.

In the present embodiment, the writing instrument 1 is provided with the buffer body 80 below the reservoir chamber 40. As shown in FIG. 12, the cushion body and relay fluid-conducting member 70 are formed by compressing a portion of the sponge with the air-permeable fluid-conducting member 30 and the applicator head 50, and the relay fluid-conducting member 70 has a higher density and capillary force than the cushion body 80.

The air permeable liquid guiding element fluid channel 301 of the air permeable liquid guiding element 30 communicates the relay liquid guiding element 70 and the reservoir chamber 40, and the relay liquid guiding element 70 blocks the port of the air permeable liquid guiding element fluid channel 301 communicating therewith. The relay fluid-directing element 70 conducts fluid from the air permeable fluid-directing element 30 to the applicator head 50. The working principle of the writing tool 1 of the present embodiment is the same as that of embodiment 1.

When the external temperature rises or the pressure drops, the air in the reservoir chamber 40 expands, and the liquid is guided to the relay liquid guiding member 70 through the air-permeable liquid guiding member 30, and then is guided from the relay liquid guiding member 70 to the buffer body 80 to be temporarily stored. When the external temperature and the external pressure are recovered to normal, as the relay liquid guiding element 70 blocks the port of the air-permeable liquid guiding element fluid channel 301 communicated with the relay liquid guiding element, the liquid in the relay liquid guiding element 70 returns to the liquid storage cavity 40 through the relay liquid guiding element 70 and the air-permeable liquid guiding element 30 in preference to air; meanwhile, the liquid in the buffer body 80 is conducted to the relay liquid guide element 70 and returns to the liquid storage cavity 40 through the air-permeable liquid guide element 30, so that the leakage risk of the painting tool 1 when the external temperature rises or the pressure drops is reduced.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention. The painting and writing instrument of the present invention broadly refers to devices for writing and painting in office supplies, various liquid painting devices used in the field of makeup and the like, and the like.

Claims (13)

1. An application tool comprising a reservoir, an application tip, an air permeable wicking element, and a relay wicking element connecting the air permeable wicking element and the application tip, the air permeable wicking element comprising an air permeable wicking element body and an air permeable wicking element fluid channel extending axially through the air permeable wicking element, the air permeable wicking element fluid channel communicating the relay wicking element and the reservoir, and the relay wicking element sealing a port of the air permeable wicking element fluid channel communicating therewith.

2. The applicator of claim 1, wherein the peripheral wall of the air permeable, fluid-conducting member fluid channel is entirely defined by the air permeable, fluid-conducting member body.

3. The applicator of claim 1, wherein the gas permeable, fluid-permeable element body is a porous, fluid-permeable material.

4. The applicator of claim 3, wherein the porous wicking material is made of a fibrous bond.

5. The applicator of claim 3, wherein the porous wicking material is formed from fiber-bonded sheath-core structures.

6. The applicator of claim 1, wherein the gas permeable, fluid-wicking element body comprises a porous fluid-wicking material and a non-porous material.

7. The applicator tool according to claim 1, wherein the smallest cross-section of the fluid channel of the air-permeable, fluid-conducting element has a maximum inscribed circle diameter of 0.1-2.0 mm.

8. The applicator of claim 1, wherein the applicator has an air permeable, fluid-conducting member sleeve disposed about the outer peripheral wall of the air permeable, fluid-conducting member body.

9. The applicator tool of claim 1, wherein the gas permeable, liquid-conducting element and the applicator head are coaxially disposed.

10. The applicator of claim 1, wherein the applicator includes a buffer.

11. The applicator tool of claim 10, wherein the cushion body and the relay wicking element are formed by compression bonding a portion of the fibers in a fiber bundle covered with fibers or films by the air permeable wicking element and the applicator head.

12. The applicator tool according to claim 8, wherein the air-permeable, liquid-conductive member sleeve is configured to narrow from an upper opening to a lower opening, and/or a portion of the applicator head inserted into the buffer body is configured to narrow from a lower portion to an upper portion.

13. The applicator tool of claim 10, wherein the cushion body and the relay wicking element are formed by the air permeable wicking element and a portion of the applicator head compression sponge.

Images