CN109334302B - Direct liquid writing tool - Google Patents
Direct liquid writing tool Download PDFInfo
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- CN109334302B CN109334302B CN201811342414.7A CN201811342414A CN109334302B CN 109334302 B CN109334302 B CN 109334302B CN 201811342414 A CN201811342414 A CN 201811342414A CN 109334302 B CN109334302 B CN 109334302B
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- ink
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- tube
- ink return
- air guide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K8/00—Pens with writing-points other than nibs or balls
- B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
- B43K8/03—Ink reservoirs; Ink cartridges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K8/00—Pens with writing-points other than nibs or balls
- B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
- B43K8/04—Arrangements for feeding ink to writing-points
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Abstract
The invention relates to a direct liquid writing tool, which is improved on the basis of the prior pen shell, a water diversion core, a pen point, an ink storage part and the like, namely, the inside of the ink storage part is provided with an ink buffer channel which is roundabout along the length direction of the water diversion core, the ink buffer channel comprises an ink return channel, an air guide channel and an ink buffer cavity, wherein the upper port of the ink return channel is communicated with an ink supply cavity through a liquid seal, the lower port of the air guide channel is communicated with an atmosphere communication cavity, the ink buffer cavity is connected between the lower port of the ink return channel and the upper port of the air guide channel, and the ink return channel is a long and narrow channel which can generate capillary phenomenon. By adopting the structure, the ink stored in the ink buffer cavity can be fully recycled under the dual actions of air pressure and capillary suction when the ink supply cavity is in negative pressure every time, so that the ink buffer cavity has enough space for storing ink even after the ink buffer cavity is subjected to multiple air pressure changes, and the phenomenon of ink leakage can be effectively prevented.
Description
Technical Field
The invention relates to the technical field of writing instruments, in particular to a straight liquid type writing instrument.
Background
At present, various straight liquid writing instruments have been developed, which are provided with an ink supply chamber for storing ink, and which transfer the ink in the ink supply chamber to a nib at the end of the ink cartridge through the ink cartridge to achieve stable ink supply. Its advantages are high ink capacity and easy ink leakage.
In order to solve the ink leakage problem, various solutions have been developed. The invention patent of the invention patent application number CN201410242248.9 (bulletin number CN 105313536A) discloses a direct liquid type writing tool, which comprises a pen holder, a water diversion core, a pen point and an adjusting part, wherein one end of the pen holder is provided with the writing part, the pen point is locally inserted in the writing part, the other end of the pen holder is provided with an ink storage part, the adjusting part is breathable and liquid-resistant, and the pen point is arranged between the ink storage part and the writing part in the pen holder, so that ink in the ink storage part is blocked from flowing to the writing part, the ink storage part is connected with the external environment through a gas circuit of the writing part, so that the pressure in the ink storage part is automatically balanced, the water diversion core penetrates the adjusting part, and two ends of the water diversion core are respectively contacted with the ink and the pen point for conducting the ink to the pen point.
The ink leakage can be prevented by temporarily storing the ink in the adjusting part, but the ink return effect is poor, and only a small amount of ink close to the water diversion core can be reused, so that the ink in the adjusting part can not be reused in time after the air pressure is changed for a plurality of times, the ink storage quantity is sufficient, and finally the ink leakage phenomenon can still be caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a direct liquid writing tool with good ink return effect and capable of effectively preventing ink leakage aiming at the current state of the art.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a straight liquid formula writing tool, includes pen shell, diversion core, nib and ink storage spare, the diversion core is inserted and is established in the inner chamber of pen shell, the bottom at diversion core is connected to the nib to part exposes in pen shell bottom, ink storage spare is located the inner chamber of pen shell, and separates into the ink supply chamber that is located upper portion and the atmosphere intercommunication chamber that is located the lower part with pen shell inner chamber, the upper portion of diversion core passes this ink storage spare and stretches into in the ink supply chamber, in order to transmit the nib with the ink in the ink supply chamber, its characterized in that: the ink storage part is internally provided with an ink buffer channel which is roundabout along the length direction of the water diversion core, the ink buffer channel comprises an ink return channel, an air guide channel and an ink buffer cavity, the upper port of the ink return channel is communicated with the ink supply cavity through a liquid seal, the lower port of the air guide channel is communicated with the atmosphere communication cavity, the ink buffer channel is connected between the lower port of the ink return channel and the upper port of the air guide channel, and the ink return channel is a long and narrow channel which can generate capillary phenomenon.
Preferably, the ink storage part comprises an ink storage seat and an ink return device matched with the ink storage seat, the liquid seal is positioned on the ink return device, and the lower port of the air guide channel is positioned on the ink storage seat, so that the ink storage part is convenient to open and assemble.
Further, the ink return device and the ink reservoir may preferably be made in a structure in which the ink reservoir includes an inner tube tightly fitted around the outer periphery of the water diversion core, an outer tube fitted around the outer tube, and a bottom plate connected between the inner tube and the outer tube, the ink return device includes a partition plate located above the ink reservoir and an ink return tube extending downward from the lower surface of the partition plate, the ink return tube has an inner hole through which the water diversion core and the inner tube pass, a gap between the inner tube and the opposite surface of the ink return tube forms the ink return passage, and an accommodation space between the ink return tube and the outer tube, the bottom plate forms the ink buffer chamber. At this time, the air guide channel can be realized in various forms, and preferably, when the outer tube is tightly attached to the inner wall of the pen shell, the air guide channel is formed on the outer wall of the outer tube, i.e. a groove can be formed on the outer wall of the outer tube; or the air guide channel is an air guide pipe vertically penetrating through the bottom plate; or a proper gap is formed between the outer tube and the inner wall of the pen shell, and the gap forms the air guide channel; the air duct can penetrate through the side wall of the outer tube, at the moment, the outer wall of the upper part of the outer tube is clung to the pen shell, a gap is reserved between the lower part of the outer tube and the inner wall of the pen shell, and the air duct conducts air through the gap between the outer tube and the inner wall of the pen shell. That is, the reasonable layout of the ink return channel, the ink buffer cavity and the air guide channel is realized through the matching between the ink storage seat, the ink return device and the pen shell.
The ink storage seat comprises an inner pipe tightly sleeved on the periphery of the water diversion core and a bottom plate connected between the inner pipe and the inner wall of the pen shell, the ink return device comprises a partition plate positioned above the ink storage seat and an ink return pipe extending downwards from the lower surface of the partition plate, the ink return pipe is provided with an inner hole for the water diversion core and the inner pipe to pass through, a gap between the inner pipe and the opposite surface of the ink return pipe forms an ink return channel, an accommodating space between the ink return pipe and the inner wall of the pen shell forms an ink buffer cavity, and the air guide channel is an air guide pipe vertically penetrating through the bottom plate. The number of the air ducts can be set according to the requirements, and one or more air ducts can be used. By adopting the scheme, the reasonable arrangement of the ink buffer channels can be realized, the ink return effect is good, and the purpose of preventing ink leakage can be effectively achieved.
Still further, there is the gap between the top of inner tube and the baffle. Therefore, the ink buffered in the ink return channel and the ink buffer cavity is led into the water diversion core through the gap, and the ink in the ink return channel can be led into the water diversion core preferentially under the condition that the air pressure of the ink supply cavity is consistent with the external air pressure.
Still further, the lower end face of the ink return tube is propped against the upper surface of the bottom plate, a first groove is radially formed on the lower end face of the ink return tube, and a lower port of the ink return channel is formed between the first groove and the bottom plate; or a small gap is reserved between the lower end face of the ink return tube and the upper surface of the bottom plate to form a lower port of the ink return channel. Of course, the ink return tube can also be realized by arranging small holes on the side wall of the lower port of the ink return tube.
Still further, a plurality of first ribs are arranged on the inner wall of the ink return tube at intervals along the circumferential direction, and the inner ends of the first ribs are propped against the outer wall of the inner tube or leave small gaps to separate the ink return channel into a plurality of small ink return channels. The first ribs are arranged to enable the ink return channel to meet the size and shape required by the capillary phenomenon, so that the ink return channel can generate the capillary phenomenon with better effect, and residual ink in the ink buffer cavity is guided to the water diversion core for preferential use during writing.
Still further, set up the perforation that supplies the diversion core to pass that link up mutually with the hole on the baffle, the space between diversion core and the 1 board opposite surface forms the liquid seal. The formation of the liquid seal can be realized by arranging the micro gap between the perforation and the diversion core, and the size of the gap can be set to be 0.05-1 mm according to the difference of the physical properties of the ink, so that the structure is simple, and the liquid seal gap is not easy to be blocked due to the drying of the ink.
Still further, when the air guide channel is formed on the outer wall of the outer tube, a second groove is radially formed on the upper end face of the outer tube, a third groove communicated with the second groove is axially formed on the outer wall face of the outer tube, a gap between the third groove and the opposite face of the pen shell forms the air guide channel, and a gap between the second groove and the partition plate forms an upper port of the air guide channel. The arrangement of the second groove and the third groove can conveniently realize the formation of the air guide channel.
Furthermore, the number of the second grooves and the third grooves is at least two respectively, and the second grooves and the third grooves are uniformly distributed on the outer tube, so that one channel is prevented from being blocked by ink due to the position relationship when the writing instrument is horizontally placed, and the ink in the ink buffer cavity can be prevented from leaking into the atmosphere communication cavity due to pressure difference under the condition that the straight liquid writing instrument is horizontally placed.
Preferably, the ink-absorbing core is accommodated in the ink return channel, so that the residual ink in the ink buffer cavity can be absorbed.
Preferably, an ink holding core is provided in the atmosphere communication chamber below the ink reservoir, the ink holding core being sandwiched between the ink introducing core and the pen case. The ink retaining core can be further protected against ink leakage, so that the ink in the ink buffer chamber is absorbed by the ink retaining core when the ink enters the atmosphere communication chamber under extreme conditions.
Compared with the prior art, the invention has the advantages that: because the ink buffer channel is designed to be a structure which is roundabout along the length direction of the diversion core, more ink can be stored, and the ink return channel connected with the liquid seal can be utilized to generate suction force to the ink in the ink buffer cavity by means of capillary phenomenon, when the negative pressure difference between the ink supply cavity and the outside is large enough, the ink in the ink buffer cavity continuously and orderly flows back to the ink supply cavity through the ink return channel and the liquid seal under the dual action of air pressure and capillary suction force in the air guide channel, so that the ink can be effectively prevented from remaining in the ink buffer cavity, namely, the ink stored in the ink buffer cavity can be fully recycled when the ink supply cavity is subjected to negative pressure every time.
Drawings
FIG. 1 is a schematic view of a liquid-straight writing instrument according to embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of section I of FIG. 2;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 5 is an enlarged view of section II of FIG. 4;
FIG. 6 is an exploded perspective view of FIG. 1;
FIG. 7 is a cross-sectional view of FIG. 6;
FIG. 8 is a schematic cross-sectional view of FIG. 1;
FIG. 9 is a schematic cross-sectional view of a liquid-straight writing instrument according to embodiment 2 of the present invention;
FIG. 10 is a schematic cross-sectional view of a liquid-straight writing instrument in embodiment 3 of the present invention;
FIG. 11 is a schematic cross-sectional view of a liquid-straight writing instrument in embodiment 4 of the present invention;
FIG. 12 is a schematic cross-sectional view of a liquid-straight writing instrument in embodiment 5 of the present invention;
FIG. 13 is a schematic cross-sectional view of a liquid-straight writing instrument in example 6 of the present invention;
FIG. 14 is a schematic cross-sectional view of a liquid-straight writing instrument in example 7 of the present invention;
FIG. 15 is a schematic cross-sectional view of a liquid-straight writing instrument in example 8 of the present invention;
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Example 1:
as shown in fig. 1 to 8, a direct liquid writing tool comprises a pen shell 1, a water diversion core 2, a pen point 3 and an ink storage part, wherein the pen shell 1 comprises an upper shell 11 and a lower shell 12 which are connected in an up-down matching manner, the water diversion core 2 is inserted into an inner cavity of the pen shell 1, the pen point 3 is connected to the bottom of the water diversion core 2, and part of the pen point 3 is exposed at the bottom end of the lower shell 12 of the pen shell 1.
The ink storage part is positioned in the inner cavity of the pen shell 1 and divides the inner cavity of the pen shell 1 into an ink supply cavity a positioned at the upper part and an atmosphere communication cavity b positioned at the lower part. The upper part of the water diversion core 2 passes through the ink storage part and stretches into the ink supply cavity a, so that the ink in the ink supply cavity a can be transferred to the pen point 3, and stable ink supply is realized. The ink storage part is internally provided with an ink buffer channel which is roundabout along the length direction of the water diversion core, the ink buffer channel comprises an ink return channel f, a gas guide channel e and an ink buffer cavity c, wherein the upper port of the ink return channel f is communicated with the ink supply cavity a through a liquid seal d, the lower port of the gas guide channel e is connected with the atmosphere communication cavity b, the ink buffer channel c is connected between the lower port of the ink return channel f and the upper port of the gas guide channel e, namely, the lower port of the ink return channel f and the upper port of the gas guide channel e are respectively communicated with the ink buffer cavity c, the ink return channel f is a long and narrow channel which can generate capillary phenomenon, and the upper port of the gas guide channel e is not lower than the upper port of the ink return channel f so as to ensure that the ink surface in the ink return channel f can reach the upper port of the ink return channel f and smoothly enter the ink supply cavity a or be contacted with the water diversion core 2.
The structure of the ink storage member may be varied as long as the ink storage member has the ink buffer passage. In this embodiment, in order to facilitate the mold opening and assembly of the ink storage member, the ink storage member preferably adopts a structure including an ink storage seat 4 and an ink return device 5 matched with the ink storage seat 4, and the ink storage seat 4 may further include an inner tube 41 tightly sleeved on the outer periphery of the water diversion core 2, an outer tube 43 sleeved outside the inner tube 41 and closely attached to the inner wall of the pen case 1, and a bottom plate 42 connected between the inner tube 41 and the outer tube 43. The ink return device 5 includes a partition plate 51 located above the ink reservoir 4 and an ink return tube 52 extending downward from the lower surface of the partition plate 51, the ink return tube 52 having an inner hole 521 through which the water diversion core 2 and the inner tube 41 pass, and a gap between the top end of the inner tube 41 and the partition plate 51, so that ink buffered in an ink return passage f and an ink buffering chamber c described below can be introduced into the water diversion core 2 through the gap or into an ink supply chamber a through a liquid seal d described below, so that the ink in the ink return passage f can be preferentially introduced into the water diversion core 2 under the condition that the air pressure of the ink supply chamber a coincides with the outside air pressure, and preferentially flows into the ink supply chamber a when the ink supply chamber a is under negative pressure. It should be noted that the height of the inner tube 41 should be set as high as possible (in particular, not lower than the upper port of the air guide channel e), so that the gap between the top end of the inner tube 41 and the partition plate 51 is as high as possible, and the ink in the ink buffer chamber c is prevented from being continuously introduced into the water guide core 2 through the gap when the ink is higher than the gap. The space between the opposite surfaces of the inner tube 41 and the ink return tube 52 forms the ink return channel f, the accommodating space between the opposite surfaces of the ink return tube 52, the outer tube 43 and the bottom surface 42 forms the ink buffer cavity c, and the reasonable layout of the ink buffer cavity c and the ink return channel f is realized through the matching of the ink storage seat 4 and the ink return device 5. In order to realize the communication between the ink return channel f and the ink buffer cavity c, the lower end surface of the ink return tube 52 abuts against the upper surface of the bottom plate 42, and a first groove 523 is radially formed on the lower end surface of the ink return tube 52, and a lower port of the ink return channel f is formed between the first groove 523 and the bottom plate 42 (of course, the communication can also be realized by forming a small hole on a side wall of the lower port of the ink return tube 52). In order to have better ink return effect, a plurality of first ribs 522 protruding radially are also distributed on the inner wall of the ink return tube 52 at intervals along the circumferential direction, namely, the ink return tube 52 is designed into a spline sleeve structure, and the ink return channel f is divided into a plurality of small ink return channels. The inner end rib of the first rib 522 abuts against the outer wall of the inner tube 41, and the first rib 522 can enable the ink return channel f to meet the size and shape required by the capillary phenomenon, so that the capillary phenomenon with better effect can be generated, and the residual ink in the ink buffer cavity can be guided to the water diversion core for preferential use during writing.
In the present embodiment, the partition plate 51 is preferably provided with a perforation 511 through which the wick 2 passes, which is communicated with the ink return tube 52, the gap between the wick 2 and the inner wall of the perforation 511 forms the liquid seal d, and the small gap between the perforation 511 and the wick 2 can be set to be 0.05-1 mm according to the difference of the physical properties of the ink, so that the structure is simple, and the liquid seal gap is not easily blocked due to the drying of the ink.
For the sake of simplifying the overall structure, the upper end surface of the outer tube 43 of the present embodiment is radially provided with a second groove 431, the outer wall of the outer tube 43 is axially provided with a third groove 432 communicated with the second groove 431, a gap between the third groove 432 and the opposite surface of the pen shell 1 forms the air guide channel e, a gap between the opposite surface of the second groove 431 and the opposite surface of the partition plate 51 forms an upper port of the air guide channel e, and the arrangement of the second groove 431 and the third groove 432 can conveniently realize the formation of the air guide channel e. Similarly, the upper port of the air guide passage e may be realized by forming a small hole in the side wall of the upper port of the outer tube 43. Here, like the liquid seal d, the size of a certain cross section of the air guide channel e needs to meet the liquid seal requirement, that is, the liquid cannot pass under the condition of balanced internal and external pressure, and the whole air guide channel e can be designed into a size meeting the liquid seal requirement, so as to achieve a better liquid seal effect. And more reasonable scheme, the number of the second grooves 431 and the third grooves 432 is at least two respectively, and the second grooves 431 and the third grooves 432 are uniformly distributed on the outer tube 43, so that one channel is prevented from being blocked by ink due to the position relationship when the writing instrument is horizontally placed, and the ink in the ink buffer cavity c can be prevented from leaking into the atmosphere communication cavity b due to pressure difference under the condition that the writing instrument is horizontally placed. In the present embodiment, the number of the air guide channels e is two, that is, the number of the corresponding second grooves 431 and third grooves 432 is two, and the air guide channels e are symmetrically distributed on the housing 43.
In order to ensure the communication between the atmosphere communication cavity b and the external atmosphere, a plurality of second ribs 121 are radially and convexly arranged on the inner wall of the lower shell 12 positioned at the bottom, and the second ribs 121 are propped against the outer wall of the pen point 3.
In order to fix the water diversion core 2 in the pen shell 1, the top end of the water diversion core 2 is abutted and fixed with the inner top surface of the upper shell 11, so that even if the writing tool is used for writing in a pouring way, smooth water outlet can be ensured.
Example 2:
as shown in fig. 9, unlike embodiment 1, in this embodiment, the number of air guide passages e is one, that is, the number of corresponding second grooves 431 and third grooves 432 is one.
Example 3:
as shown in fig. 10, unlike embodiment 2, in this embodiment, in order to further reduce the ink remaining in the ink buffer chamber c, the ink absorbing core 6 is accommodated in the ink return channel f, and in this embodiment, a cotton core is used and is in contact with the water diversion core, and the cotton core can absorb the ink remaining in the ink buffer chamber c and attract the ink to the water diversion core for writing by the pen point.
Example 4:
as shown in fig. 11, unlike embodiment 1, in this embodiment, the outer tube is omitted, and an air duct 433 for communicating the atmosphere communication chamber b and the ink buffer chamber c is erected on the bottom plate 42', the inner cavity of this air duct 433 forms the above-mentioned air duct e, and a plurality of air ducts may be provided as needed, and in this embodiment, two air ducts are symmetrically provided.
Example 5:
as shown in fig. 12, unlike embodiment 2, in this embodiment, the outer tube is omitted, and only one air duct 433 communicating the atmosphere communication chamber b and the ink reservoir chamber c is erected on the bottom plate 42', and the inner cavity of the air duct 433 forms the above-mentioned second passage e.
Example 6:
as shown in fig. 13, unlike embodiment 2, in this embodiment, an ink retaining core 7 is provided in the atmosphere communication chamber b below the ink reservoir, the ink retaining core 7 being sandwiched between the ink introducing core 2 and the pen case 1, the ink retaining core 7 being provided for further protection against ink leakage, so that the ink in the ink buffer chamber c is absorbed by the ink retaining core 7 when entering the atmosphere communication chamber b in extreme cases.
Example 7:
as shown in fig. 14, unlike embodiment 3, in this embodiment, the tip of the wick 2 does not abut against the inner top surface of the upper case 11, but a stopper 21 is provided on the outer wall of the wick 2, and the stopper 21 is limited between the lower surface of the partition plate 51 and the end surface of the inner tube 41, thereby achieving fixation of the wick 2 in the pen case 1. Of course, the stopper 21 may be disposed below the ink container, so that the stopper 21 may abut against the lower surface of the bottom plate 42.
Example 8:
as shown in fig. 15, in the present embodiment, unlike in embodiment 7, on the one hand, the top end of the water core 2 abuts against the inner top surface of the upper case 11, and on the other hand, the stopper portion 21 is provided on the outer wall of the water core 2 in a protruding manner, and the stopper portion 211 is limited between the lower surface of the partition plate 51 and the end surface of the inner tube 41, thereby realizing double fixation of the water core 2.
Taking example 1 as an example, the working principle of the invention is as follows:
(1) In the initial state, the air pressure of the ink supply cavity a is consistent with the external air pressure, and because the surface of the liquid seal d is sealed with an ink film (the liquid seal principle is the same as that of the prior art), external air cannot enter the ink supply cavity a;
(2) Through writing, as the ink in the ink supply cavity a is consumed, the air pressure in the ink supply cavity a is reduced, when the negative pressure difference between the ink supply cavity a and the outside is large enough, the ink film on the surface of the liquid seal d is destroyed, and the outside air can sequentially enter the ink supply cavity a through the atmosphere communication cavity b, the air guide channel e, the ink buffer cavity c, the ink return channel f and the liquid seal d until the internal pressure and the external pressure are balanced, and the ink film on the surface of the liquid seal d is built again;
(3) The air in the ink supply chamber a expands or compresses due to a change in temperature or the like:
(1) when the internal air contracts, in accordance with the above situation, when the negative pressure difference between the ink supply cavity a and the outside is large enough, the ink film on the surface of the liquid seal d is destroyed, and the outside air can enter the ink supply cavity a until the internal air pressure and the external air pressure are balanced;
(2) when the internal air expands, when the positive pressure difference between the ink supply cavity a and the outside is large enough, under the action of pressure, the ink film on the surface of the liquid seal d is destroyed, the ink in the ink supply cavity a sequentially enters the ink buffer cavity c through the liquid seal d and the ink return channel f until the internal pressure and the external pressure are balanced, and the ink film on the surface of the liquid seal d is built again;
when the writing is needed again, the water diversion core 2 can absorb the ink in the ink cache cavity c and transmit the ink to the pen point 3 preferentially through the capillary phenomenon in the ink return channel f;
when the air pressure in the ink supply cavity a is reduced along with the writing (or when the internal air is contracted due to the change of the external temperature or the like), the ink film on the surface of the liquid seal d is destroyed when the negative pressure difference between the ink supply cavity a and the external is large enough, and the ink in the ink cache cavity c is continuously returned to the ink supply cavity a through the ink return channel f and the liquid seal d under the dual functions of the air pressure and the capillary suction force, so that the ink can be effectively prevented from remaining in the ink cache cavity c.
Although the preferred embodiment of the present invention has been described in detail above, it should be clearly understood that various modifications and variations of the present invention are possible to those skilled in the art, for example, the liquid seal d may be disposed on the partition plate 51 adjacent to the perforation, and correspondingly, the ink return channel f communicating with the liquid seal d may be directly opened on the ink return tube 52. It is intended that all modifications, equivalents, improvements and modifications falling within the spirit and principles of the invention be included within the scope of the invention.
Claims (17)
1. The utility model provides a straight liquid formula writing tool, includes pen shell (1), diversion core (2), nib (3) and ink storage spare, diversion core (2) are inserted and are established in the inner chamber of pen shell (1), nib (3) are connected in the bottom of diversion core (2) to part exposes in pen shell (1) bottom, ink storage spare is located the inner chamber of pen shell (1) to separate into ink supply chamber (a) that are located upper portion and the atmosphere intercommunication chamber (b) that are located the lower part with pen shell (1) inner chamber, the upper portion of diversion core (2) is passed this ink storage spare and is stretched into in ink supply chamber (a) to with the ink in ink supply chamber (a) transfer nib (3), its characterized in that: the ink storage part is internally provided with an ink buffer channel which is roundabout along the length direction of the water diversion core (2), the ink buffer channel comprises an ink return channel (f) with an upper port communicated with the ink supply cavity (a) through a liquid seal (d), an air guide channel (e) with a lower port communicated with the atmosphere communication cavity (b), and an ink buffer cavity (c) connected between the lower port of the ink return channel (f) and the upper port of the air guide channel (e), and the ink return channel (f) is a long and narrow channel capable of generating capillary phenomenon;
the ink storage part comprises an ink storage seat (4) and an ink return device (5) matched with the ink storage seat (4), the liquid seal (d) is positioned on the ink return device (5), and the lower port of the air guide channel is positioned on the ink storage seat (4);
the ink storage seat (4) comprises an inner tube (41) tightly sleeved on the periphery of the water diversion core (2), an outer tube (43) sleeved outside the inner tube (41) and a bottom plate (42) connected between the inner tube (41) and the outer tube (43), the ink return device (5) comprises a baffle plate (51) positioned above the ink storage seat and an ink return tube (52) extending downwards from the lower surface of the baffle plate (51), the ink return tube (52) is provided with an inner hole (521) for the water diversion core (2) and the inner tube (41) to pass through, a gap between the inner tube (41) and the opposite surface of the ink return tube (52) forms an ink return channel (f), and an accommodating space between the ink return tube (52) and the outer tube (43) and the bottom plate (43) forms an ink buffer cavity (c).
2. The liquid-straight writing instrument according to claim 1, wherein: the outer tube (43) is tightly attached to the inner wall of the pen shell (1), and the air guide channel (e) is formed on the outer wall of the outer tube (43); or the air guide channel (e) is an air guide pipe (433) vertically penetrating through the bottom plate; or the air guide channel is formed by the gap between the outer tube (43) and the inner wall of the pen shell (1).
3. The straight liquid writing instrument according to claim 1 or 2, wherein: a gap is formed between the top end of the inner tube (41) and the partition plate (51).
4. The straight liquid writing instrument according to claim 1 or 2, wherein: the lower end face of the ink return pipe (52) is propped against the upper surfaces of the bottom plates (42, 42 '), a first groove (523) is radially formed on the lower end face of the ink return pipe (52), and a lower port of the ink return channel (f) is formed between the first groove (523) and the bottom plates (42, 42'); or a small gap is reserved between the lower end face of the ink return tube (52) and the upper surfaces of the bottom plates (42, 42') so as to form a lower port of the ink return channel (f).
5. The straight liquid writing instrument according to claim 1 or 2, wherein: a plurality of first ribs (522) protruding radially are arranged on the inner wall of the ink return tube (52) at intervals along the circumferential direction, and the inner ends of the first ribs (522) are propped against the outer wall of the inner tube (41) or leave small gaps to separate the ink return channel (f) into a plurality of small ink return channels.
6. The straight liquid writing instrument according to claim 1 or 2, wherein: the partition plate (51) is provided with a perforation (511) communicated with the inner hole (521) and used for allowing the diversion core (2) to pass through, and a gap between the diversion core (2) and the opposite surface of the partition plate (51) forms the liquid seal (d).
7. The liquid-straight writing instrument according to claim 2, wherein: when the air guide channel (e) is formed on the outer wall of the outer tube (43), a second groove (431) is radially formed in the upper end face of the outer tube (43), a third groove (432) communicated with the second groove (431) is axially formed in the outer wall face of the outer tube (43), a gap between the third groove (432) and the opposite face of the pen shell (1) forms the air guide channel (e), and a gap between the second groove (431) and the partition plate (51) forms an upper port of the air guide channel (e).
8. The liquid-straight writing instrument according to claim 7, wherein: the number of the second grooves (431) and the third grooves (432) is at least two respectively, and the second grooves and the third grooves are uniformly distributed on the outer wall of the outer tube (43).
9. The straight liquid writing instrument according to claim 1 or 2, wherein: an ink absorbing core (6) is accommodated in the ink return channel (f).
10. The straight liquid writing instrument according to claim 1 or 2, wherein: an ink holding core (7) is arranged in the atmosphere communication cavity (b) below the ink storage piece, and the ink holding core (7) is clamped between the water diversion core (2) and the pen shell (1).
11. The utility model provides a straight liquid formula writing tool, includes pen shell (1), diversion core (2), nib (3) and ink storage spare, diversion core (2) are inserted and are established in the inner chamber of pen shell (1), nib (3) are connected in the bottom of diversion core (2) to part exposes in pen shell (1) bottom, ink storage spare is located the inner chamber of pen shell (1) to separate into ink supply chamber (a) that are located upper portion and the atmosphere intercommunication chamber (b) that are located the lower part with pen shell (1) inner chamber, the upper portion of diversion core (2) is passed this ink storage spare and is stretched into in ink supply chamber (a) to with the ink in ink supply chamber (a) transfer nib (3), its characterized in that: the ink storage part is internally provided with an ink buffer channel which is roundabout along the length direction of the water diversion core (2), the ink buffer channel comprises an ink return channel (f) with an upper port communicated with the ink supply cavity (a) through a liquid seal (d), an air guide channel (e) with a lower port communicated with the atmosphere communication cavity (b), and an ink buffer cavity (c) connected between the lower port of the ink return channel (f) and the upper port of the air guide channel (e), and the ink return channel (f) is a long and narrow channel capable of generating capillary phenomenon;
the ink storage part comprises an ink storage seat (4) and an ink return device (5) matched with the ink storage seat (4), the liquid seal (d) is positioned on the ink return device (5), and the lower port of the air guide channel is positioned on the ink storage seat (4);
the ink storage seat (4) comprises an inner tube (41) tightly sleeved on the periphery of the water diversion core (2) and a bottom plate (42 ') connected between the inner tube (41) and the inner wall of the pen shell (1), the ink return device (5) comprises a partition plate (51) positioned above the ink storage seat and an ink return tube (52) extending downwards from the lower surface of the partition plate (51), the ink return tube (52) is provided with an inner hole (521) for the water diversion core (2) and the inner tube (41) to pass through, a gap between the inner tube (41) and the opposite surface of the ink return tube (52) forms an ink return channel (f), a containing space between the ink return tube (52) and the inner wall of the pen shell (1) forms an ink buffer cavity (c), and the air guide channel (e) is an air guide tube (433) vertically penetrating through the bottom plate (42').
12. The liquid-straight writing instrument according to claim 11, wherein: a gap is formed between the top end of the inner tube (41) and the partition plate (51).
13. The liquid-straight writing instrument according to claim 11, wherein: the lower end face of the ink return pipe (52) is propped against the upper surfaces of the bottom plates (42, 42 '), a first groove (523) is radially formed on the lower end face of the ink return pipe (52), and a lower port of the ink return channel (f) is formed between the first groove (523) and the bottom plates (42, 42'); or a small gap is reserved between the lower end face of the ink return tube (52) and the upper surfaces of the bottom plates (42, 42') so as to form a lower port of the ink return channel (f).
14. The liquid-straight writing instrument according to claim 11, wherein: a plurality of first ribs (522) protruding radially are arranged on the inner wall of the ink return tube (52) at intervals along the circumferential direction, and the inner ends of the first ribs (522) are propped against the outer wall of the inner tube (41) or leave small gaps to separate the ink return channel (f) into a plurality of small ink return channels.
15. The liquid-straight writing instrument according to claim 11, wherein: the partition plate (51) is provided with a perforation (511) communicated with the inner hole (521) and used for allowing the diversion core (2) to pass through, and a gap between the diversion core (2) and the opposite surface of the partition plate (51) forms the liquid seal (d).
16. The liquid-straight writing instrument according to claim 11, wherein: an ink absorbing core (6) is accommodated in the ink return channel (f).
17. The liquid-straight writing instrument according to claim 11, wherein: an ink holding core (7) is arranged in the atmosphere communication cavity (b) below the ink storage piece, and the ink holding core (7) is clamped between the water diversion core (2) and the pen shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342414.7A CN109334302B (en) | 2018-11-13 | 2018-11-13 | Direct liquid writing tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811342414.7A CN109334302B (en) | 2018-11-13 | 2018-11-13 | Direct liquid writing tool |
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| Publication Number | Publication Date |
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| CN109334302A CN109334302A (en) | 2019-02-15 |
| CN109334302B true CN109334302B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811342414.7A Active CN109334302B (en) | 2018-11-13 | 2018-11-13 | Direct liquid writing tool |
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| CN (1) | CN109334302B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111109664B (en) | 2020-01-15 | 2023-12-26 | 深圳麦克韦尔科技有限公司 | Electronic atomization device and atomizer thereof |
| KR20230002548A (en) * | 2020-07-24 | 2023-01-05 | 썬전 화청다 프리시젼 인더스트리 컴퍼니 리미티드 | Capillary liquid guide atomizing unit and atomizing device |
| CN113212030A (en) * | 2021-05-13 | 2021-08-06 | 苏州雄鹰笔墨新材料有限公司 | Ink storage assembly of direct-liquid type writing tool |
| CN113212031A (en) * | 2021-05-13 | 2021-08-06 | 苏州雄鹰笔墨新材料有限公司 | Direct liquid type writing tool |
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| CN109334302A (en) | 2019-02-15 |
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