WO2020093668A1 - Ink guide structure of ink pen and ink pen comprising ink guide structure - Google Patents

Abstract

An ink guide structure of an ink pen and the ink pen comprising the ink guide structure. The ink guide structure comprises a pen barrel (200) and a writing portion (300); the pen barrel (200) is internally hollow; a partition member is a limiting portion (210) integrally formed in the pen barrel; the limiting portion (210) partitions a hollow cavity inside the pen barrel (200) into a first cavity (220) and a second cavity (230); and a plurality of communicating holes (211) for enabling the first cavity (220) to be communicated with the second cavity (230) are formed on the limiting portion (210). The components of the ink pen ink guide structure and the ink pen are compact in structural design, and the matching relation among the components is unique and has a proper positioning function, thereby helping to improve the assembling efficiency in the production process, and reduce production costs. In addition, the ink guide structure also represents significant progress in terms of negative pressure test effect.

Description

Ink pen guiding structure and ink pen containing the same Technical field

The invention belongs to the technical field of daily and office supplies, and particularly relates to an ink pen ink guiding structure and an ink pen containing the structure.

Background technique

Writing tools refer to tools used for writing, including pencils, ballpoint pens, pens, gel pens, whiteboard pens, highlighters, and other types of writing pens. Nowadays, with the advancement of science and technology and the improvement of people's living standards, except for certain specific scenarios, the frequency of writing has decreased significantly. However, in some specific applications, the corresponding writing pen still has a large market share.

Office pens, represented by whiteboard pens, have been widely used in recent years. They have an internal ink chamber for storing ink. The ink is exported to the head of the refill after the writing component is exported to achieve writing operations; most of them are on whiteboards, glass, etc. Writing on a smoother surface, and occasionally used for writing on other surfaces. It is characterized by ink containing volatile components. After writing, it evaporates to form a stable handwriting. Wiping with a whiteboard wipe or rag can make the handwriting powdered for erasure .

In terms of structure, in addition to the overall outline of the pen body, pen cover, etc., more important is the internal ink storage and ink guide parts; the ink chamber for ink storage is generally located in the middle to the tail of the writing pen, the front A refill is provided, and the ink guide member is provided between the two to stably lead the ink from the ink chamber to the refill; since the refill and the ink guide member are generally hygroscopic, the structure and material of the ink guide member The design is particularly important, otherwise it will cause the ink to leak under unnecessary circumstances.

In the prior art, there are many solutions for the structural design of the ink-conducting components, and these solutions can also solve different technical problems. However, many of these structural designs are not very friendly to actual industrial production; many structures In the production process, the process is complicated, and the assembly process is time-consuming, resulting in high overall production cost and labor intensity of the product; this is a problem on the one hand.

On the other hand, due to the need for ink conduction when writing with the ink pen, the refill and ink-conducting parts often need to have strong hygroscopicity, which makes the ink pen particularly prone to ink leakage under negative pressure. The occurrence of this will make the ink pen of this type in the process of transportation, when the outside temperature changes, or when it falls, it will cause the ink to leak from the front end of the refill and contaminate the pen cover or other items, and it will also waste the ink unnecessarily. .

Summary of the invention

An object of the present invention is to provide an ink pen ink guide structure with a compact structure, easy production and assembly, and good negative pressure resistance, and an ink pen including the structure.

In order to achieve the above objectives, the solutions adopted by the present invention are:

An ink pen ink guiding structure includes a pen body, the pen body includes a pen stem and a writing part, the pen stem includes an ink cavity, a partition and a lower cavity, and the writing part fits into the lower cavity.

The writing part includes a writing core, the front end of the writing core exposes the writing part for writing and the rear end communicates with the ink cavity; the partition is configured such that the rear end of the writing core communicates directly or indirectly with the ink cavity.

The inside of the pen barrel is hollow, and the two ends are respectively provided with openings; the partition is a limiting part integrally formed in the pen barrel, and the limiting part separates the hollow cavity in the pen barrel into a first cavity and a second cavity In the cavity, the limiting portion is provided with a plurality of communication holes to allow the first cavity to communicate with the second cavity; the ink cavity is formed by the cooperation of the first cavity and the top cover, and the second cavity is used for Writing department settings.

Preferably, the pen holder is integrally injection-molded, which is injection-molded at one time through the two-way long core pulling method, which reduces the process and assembly cost of separately injecting small parts; and the assembly of the writing part and the pen holder is easier .

Preferably, the limiting portion includes a positioning cavity protruding toward the first cavity and a guide ring that transitions from the second cavity to the positioning cavity, and a through hole is provided on the bottom surface and / or side surface of the positioning cavity. The positioning cavity is used for the rear end of the writing core to fit therein, and the through holes provided on the bottom wall and / or side wall of the writing core are used to enable the writing core to contact the ink in the ink cavity and transport the ink to the writing core The front end is used for writing. This integrally formed limit part is matched with its special structure, which makes it have a very good effect in the negative pressure test. It can pass the negative pressure test and the actual test effect is significantly improved compared with other existing ink guide structures. There will be no accidental leakage of ink.

Further, a plurality of reinforcing ribs are provided on the side wall of the positioning cavity, side through holes on the side of the positioning cavity are arranged between the reinforcing ribs at intervals, and side through holes and bottoms on the bottom and side of the positioning cavity The through holes together form the communication holes. Such a structure is beneficial to improve the structural strength of the limit portion and to provide through holes on the side, and it also has good process adaptability in the injection molding production process.

Preferably, the writing part further includes a drainage core, the front end of the drainage core cooperates with the rear end of the writing core and the rear end communicates with the ink chamber. That is to say, the method of directly drawing the writing core from the ink chamber to indirectly drawing through the drainage core is beneficial to the manufacture of various parts, and on the other hand, different materials can be used to configure the ink drawing effect.

Preferably, the writing part further includes a water storage core, the water storage core is sleeved outside the writing core and / or the drainage core, and is made of a hygroscopic material. For the ink-conducting structure with only the writing core, it is obviously sleeved on part of the surface of the writing core, and the length of the sleeve can be set as required; while for the ink-conducting structure with both the writing core and the drainage core, In other words, the location of the sleeve can be various, including: only sleeved outside the drainage core, only sleeved outside the writing core, and sleeved both outside the writing core and the drain core, of which the third method can also Used for ink guide of writing core and drainage core; the specific length of water storage core can be set as required in all nesting methods.

Preferably, the writing pen further includes an inner liner, the inner liner is provided with a through hole for penetrating core or drainage core; the function of the inner liner is to isolate a buffer cavity on top of the first cavity, In order to further reduce the possibility of negative pressure ink leakage. More preferably, a guide ring is also provided at the front end of the through hole to facilitate penetration of the drainage core during assembly.

Further, the rear end of the lining is also provided with a cavity, which is formed by the rear end wall of the lining.

An ink pen includes a writing pen and a pen cover matched with the front end of the writing pen. One end of the pen cover is sealed and the other end is open, and a cavity is provided in the pen cover for the front end of the writing pen to fit therein.

The writing pen includes the ink-guiding structure of the ink pen of any of the above solutions. In addition, it also includes a pen item. The pen item includes a front end, a limit ring and a rear end. Connection, fixed connection can be interference fit, threaded or snapped. The front end of the pen item is provided with a front port through which the writing core penetrates, and a plurality of fixing ribs arranged along the inner wall for fixing the writing core are provided in the front port, and an air inlet channel is formed between the fixing ribs; the writing core penetrates The pen tip is fixed in the front end of the pen item, the pen tip of the front end exposes the pen item, and the rear end is arranged in the pen item for drawing ink.

Preferably, a rear fixing rib for fixing the water storage core is provided on the inner wall of the rear end of the pen item, a step for fixing and positioning the water storage core is formed on the rear fixing rib, and a rear transition section is formed between the step and the rear end opening ; And the lining is also provided with a fixed rib, the fixed rib is circumferentially provided along the inner wall of the front end of the lining, and a channel is formed between the fixed rib; a step is provided on the fixed rib, between the step and the front port of the lining Guide the ring transition.

Preferably, the top cover is composed of a top seal and a top cover, the top seal cooperates with the inner wall of the rear port of the barrel to seal the second cavity to form a cavity for storing ink; the top cover is fitted outside the top seal The rear port of the pen holder serves as the second layer of sealing and decoration.

Preferably, the pen cover, pen body and pen barrel can all be in the shape of a cylinder or a similar shape (that is, in the case of a cylinder as a whole, the local part can be appropriately changed) to facilitate holding and writing; of course, On the basis of achieving the above-mentioned functions, a number of shapes can also be provided on the pen cover, pen barrel or top cover to enhance the overall aesthetics, or to play the role of identification (for example, identification of characteristics such as color, thickness of pen items, etc.); These shapes can be designed individually for a certain component, or they can be implemented separately for each component as a whole.

The components of the ink guiding structure of the present invention have a compact design, which is beneficial to reduce the production and assembly process and labor costs during the production process, and the matching relationship between the components is unique and has an appropriate positioning function; considering the installation process The writing core, the drainage core and the water storage core are all flexible materials and need to be worn, so the guide structure is designed at the relevant structure and is convenient for assembly and positioning. More specifically, after the assembly of the writing part is completed, the inner lining is assembled to form a relatively complete unit, and there is a certain joint force between the components without loosening; when the unit is assembled in the pen holder, only the It can be inserted into the second cavity and fixed without any more complicated operation steps. In the assembly process of the existing writing pen, the assembly efficiency can be greatly improved and the production cost can be reduced. The special structure of the positioning cavity also significantly improves the resistance and performance of the DEK. Compared with other existing ink guide structures, it can achieve no leakage of ink when the temperature changes, vibration (bumps) and the change of the external atmospheric pressure.

Although the ink guiding structure of the present invention is a whiteboard pen used for a whiteboard in most cases, it can also be used in other writing instruments such as a marker pen and a highlighter pen.

BRIEF DESCRIPTION

Figure 1a is a cross-sectional view of an ink guiding structure of an embodiment of the present invention;

Figure 1b is a partially enlarged view of Figure 1a;

2 is a cross-sectional view of the pen holder of the embodiment of FIG. 1;

3 is a cross-sectional view of an ink guide structure according to another embodiment of the invention;

4a and 4b are cross-sectional views of the improved ink guiding structure based on the embodiments of FIGS. 1 and 3, respectively;

5a and 5b are cross-sectional views of a further improved ink guiding structure based on the embodiments of FIGS. 4a and 4b, respectively;

5c and 5d are partially enlarged views of FIGS. 5a and 5b, respectively;

6 is a schematic perspective view of an ink tube according to an embodiment of the present invention;

7 is a schematic structural view of the writing pen in the embodiment of FIG. 6;

8a is a partial view of the embodiment of FIG. 6;

8b is a partial enlarged view of FIG. 8a;

8c and 8 are respectively a top view and a bottom view of the pen holder of the embodiment of FIG. 6;

9a and 9b are a schematic structural view and a cross-sectional view of the writing part of the embodiment of FIG. 6;

10a and 10b are a schematic structural view and a cross-sectional view of the writing part and the inner liner of the embodiment of FIG. 6 after being fitted;

11a and 11b are a schematic structural view and a cross-sectional view of the pen item of the embodiment of FIG. 6;

12a and 12b are a schematic structural view and a cross-sectional view of the liner of the embodiment of FIG. 6;

13 is an exploded schematic view of the top cover of the embodiment of FIG. 6.

detailed description

In order to enable those skilled in the art to better understand the present invention and thereby more clearly define the scope of the claimed invention, the present invention will be described in detail below with reference to certain specific embodiments of the present invention. It should be noted that the following are only some specific embodiments of the inventive concept are only a part of the embodiments of the present invention, wherein the specific direct description of the related structure is only for the convenience of understanding the present invention, and the specific features are not of course , Directly limit the scope of the present invention. The conventional choices and replacements made by those skilled in the art under the guidance of the inventive concept shall be deemed to be within the scope of the claimed invention.

An ink pen ink guiding structure includes a pen body, the pen body includes a pen stem and a writing part, the pen stem includes an ink cavity, a partition and a lower cavity, and the writing part fits into the lower cavity. In daily use, the pen body is assembled as a whole to open the writing or to fit the writing part at the front end into the pen cover and realize its storage. The writing part includes a writing core, the front end of the writing core exposes the writing part for writing and the rear end communicates with the ink cavity; the partition is configured such that the rear end of the writing core communicates directly or indirectly with the ink cavity.

The inside of the pen barrel is hollow, and the two ends are respectively provided with openings; the partition is a limiting part integrally formed in the pen barrel, and the limiting part separates the hollow cavity in the pen barrel into a first cavity and a second cavity In the cavity, the limiting portion is provided with a plurality of communication holes to allow the first cavity to communicate with the second cavity; the ink cavity is formed by the cooperation of the first cavity and the top cover, and the second cavity is used for Writing department settings. The pen holder is injection molded in one piece, which is injection molded at one time through the two-way long core pulling method, which reduces the process and assembly cost of separately injection of small parts; and the assembly of the writing part and the pen holder is easier.

The limiting portion includes a positioning cavity protruding toward the first cavity and a guide ring that transitions from the second cavity to the positioning cavity. A through hole is provided on the bottom surface and / or side surface of the positioning cavity. The positioning cavity is used for the rear end of the writing core to fit therein, and the through holes provided on the bottom wall and / or side wall of the writing core are used to enable the writing core to contact the ink in the ink cavity and transport the ink to the writing core The front end is used for writing. This integrally formed limit part is matched with its special structure, which makes it have a very good effect in the negative pressure test. It can pass the negative pressure test and the actual test effect is significantly improved compared with other existing ink guide structures. There will be no accidental leakage of ink.

The side wall of the positioning cavity is provided with a number of reinforcing ribs. The side through holes on the side of the positioning cavity are arranged between the reinforcing ribs at intervals. The side through holes and the bottom through holes provided on the bottom and side surfaces of the positioning cavity are common A communication hole is formed. Such a structure is beneficial to improve the structural strength of the limit portion and to provide through holes on the side, and it also has good process adaptability in the injection molding production process.

The writing part further includes a drainage core and a water storage core. The front end of the drainage core cooperates with the rear end of the writing core and the rear end communicates with the ink chamber. That is to say, the method of directly drawing the writing core from the ink chamber to indirectly drawing through the drainage core is beneficial to the manufacture of various parts, and on the other hand, different materials can be used to configure the ink drawing effect. The water storage core is sleeved outside the writing core and / or the drainage core, and is made of hygroscopic material. For the ink-conducting structure with only the writing core, it is obviously sleeved on part of the surface of the writing core, and the length of the sleeve can be set as required; while for the ink-conducting structure with both the writing core and the drainage core, In other words, the location of the sleeve can be various, including: only sleeved outside the drainage core, only sleeved outside the writing core, and sleeved both outside the writing core and the drain core, of which the third method can also Used for ink guide of writing core and drainage core; the specific length of water storage core can be set as required in all nesting methods.

The top cover is composed of a top seal and a top cover. The top seal cooperates with the inner wall of the rear port of the barrel to seal the second cavity to form a cavity for storing ink; the top cover is fitted to the rear port of the barrel outside the top seal , To play the role of the second layer of sealing and decoration.

In some embodiments, the pen cover, pen body, and pen barrel may all be cylindrical or similar in shape (that is, in the case of being generally cylindrical, local changes may be appropriate) to facilitate gripping and Writing; of course, on the basis of achieving the above-mentioned functions, you can also set a number of shapes on the pen cover, pen holder or top cover to enhance the overall aesthetics, or play a role in marking (such as color, pen item thickness and other characteristics Logo); these shapes can be designed individually for a certain component, or can be implemented as a whole with each component separately.

In other embodiments, the ink guiding structure further includes an inner liner, and the inner liner is provided with a through hole for the drainage core to pass through, and the shape of the through hole matches the writing core or the drainage core, so that the writing core or the drainage core It can be penetrated through it; more preferably, the front end of the through hole is also provided with a guide ring to facilitate the penetration of the drainage core during assembly. More preferably, the lining is also provided with a fixing rib for fixing the water storage core. The fixing rib is circumferentially arranged along the inner wall of the front end of the lining, and a channel is formed between the fixing ribs; at the same time, the fixing rib is also provided with a convenient water storage A step for fixing and positioning the core, and the step and the front port of the liner are connected by a guide ring to facilitate the assembly of the water storage core. Optimally, the rear end of the liner is also provided with a cavity to further reduce the possibility of negative pressure ink leakage, which is formed by the rear end wall of the liner.

An ink pen includes a writing pen and a pen cover matched with the front end of the writing pen. One end of the pen cover is sealed and the other end is open, and a cavity is provided in the pen cover for the front end of the writing pen to fit therein.

The writing pen includes the ink-guiding structure of the ink pen of any of the above solutions. In addition, it also includes a pen item. The pen item includes a front end, a limit ring and a rear end. Connection, fixed connection can be interference fit, threaded or snapped. The front end of the pen item is provided with a front port through which the writing core penetrates, and a plurality of fixing ribs arranged along the inner wall for fixing the writing core are provided in the front port, and an air inlet channel is formed between the fixing ribs; the writing core penetrates the ground The pen tip is fixed in the front end of the pen item, the pen tip of the front end exposes the pen item, and the rear end is arranged in the pen item for drawing ink.

In other embodiments, the inner wall of the rear end of the pen item is provided with a rear fixing rib for fixing the water storage core, and a step for fixing and positioning the water storage core is formed on the rear fixing rib. There is a rear transition section; and the inner lining is also provided with a fixed edge, the fixed edge is provided along the circumferential direction of the inner wall of the front end of the inner liner, and a channel is formed between the fixed edges; there is a step on the fixed edge, the step and the liner The front port is transitioned by the guide ring.

Example one

As shown in FIG. 1 (FIGS. 1a, 1b) and 2, an ink pen ink guiding structure includes a pen body, the pen body includes a pen holder 200 and a writing part 300, and the pen holder 200 includes an ink chamber, a partition and a lower space Cavity, the writing part 300 fits into the lower cavity;

The writing part 300 includes a writing core 320, the front end of the writing core 320 exposes the writing part 300 for writing and the rear end communicates with the ink chamber; the partition is configured such that the rear end of the writing core communicates directly or indirectly with the ink chamber.

The inside of the pen holder 200 is hollow, and openings are provided at both ends thereof; the partition is a limiter 210 integrally formed in the pen holder, and the limiter 210 divides the hollow cavity in the pen holder into a first cavity The body 220 and the second cavity 230, and the limiting portion 210 are provided with a plurality of communication holes 211 so that the first cavity 220 and the second cavity 230 can communicate with each other (of course, the rear end 322 of the writing core is inserted through the partition and (It is also feasible to extend into the ink chamber).

The ink cavity is formed by the cooperation of the second cavity 230 and the top cover 500, and the first cavity 220 is used for the writing part 300 to be set.

The limiting portion 210 includes a positioning cavity 221 protruding toward the second cavity 230 and a guide ring 222 transitioning from the first cavity 220 to the positioning cavity. Side holes 2111 are provided on the bottom surface and side surfaces of the positioning cavity 221 respectively和 底 通 孔 2112. The side wall of the positioning cavity 221 is also provided with a number of reinforcing ribs 2211. The side through holes 2111 on the side of the positioning cavity are spaced between the reinforcing ribs 2211. The side through holes on the bottom and side of the positioning cavity 221 are provided. The 2111 and the bottom through hole 2112 together form a communication hole 211.

Example 2

As shown in FIGS. 1-3, the main structure of this embodiment is the same as that of Embodiment 1, except that in the ink guiding structure of this embodiment, the writing part 300 further includes a drainage core 330, and the front end of the drainage core 330 is The rear end of the writing core 320 cooperates, and its rear end communicates with the ink chamber; that is, in the first embodiment, the writing core 320 directly draws ink from the ink chamber, while in this embodiment it is Indirectly communicated with the ink chamber via the drainage core 330. In addition, there are three ways of matching the front end of the drainage core 330 and the rear end of the writing core 320, namely: direct contact (that is, end surface contact, as shown in FIG. 3), an appropriate distance, or no direct contact but there is a second Three transition bodies (for example, the drainage core in Embodiment 3, or a similar structure are provided separately), these three methods are all capable of achieving the ink inducing function, and of course include other ink inducing structures in the art in the prior art.

Example Three

As shown in FIGS. 1-4, the main structure of this embodiment is the same as that of Embodiment 1 or Embodiment 2. The difference is that, in the ink-guiding structure of this embodiment, the writing part 300 further includes a water storage core 340. The water core 340 is sleeved outside the writing core 320 and / or the drainage core 330, and it is made of a hygroscopic material to play the role of storing ink.

For the water storage core 340 sleeved on the basis of the ink guide structure of the first embodiment, it is obviously sleeved on a part of the surface of the writing core 320, and the length of the sleeve can be set as required (as shown in FIG. 4a ); And for the water storage core 340 sleeved on the basis of the ink guide structure of the second embodiment, the sleeve position can be various, including: only sleeved outside the drainage core 330 (as shown in FIG. 4b) , Only sleeved outside the writing core 320, and sleeved at the same time outside the writing core 320 and the drainage core 330, of which the third method can also be used for writing ink of the writing core 320 and the drainage core 330, this long way of storing water The specific length of the core 340 can be set as required.

Example 4

As shown in FIGS. 1-5, the main structure of this embodiment is the same as that of Embodiments 1, 2, and 3. The difference is that, in the ink guiding structure of this embodiment, the ink guiding structure further includes an inner liner 400 (as shown in FIG. 5a, 5b, 5c, 5d), the lining 400 is provided with a through hole 410 for the writing core 320 or the drainage core 330 to pass through, the shape of the through hole 410 matches the writing core 320 or the drainage core 330 to make the writing core 320 or the drain core 330 can pass through. The front end of the through hole 410 is also provided with a guide ring 411 to facilitate the penetration of the drain core 330 during assembly. The guide ring 411 smoothly transitions the front end of the through hole 410 to the through hole 410 to prevent the writing core 320 Or the drainage core 330 gets stuck when it is worn. The rear end of the inner liner 400 is further provided with a cavity 430 formed by the rear end wall 431 of the inner liner 400. The outer wall of the inner liner 400 and the inner wall of the pen holder 200 cooperate in a tight or near tight fit, and the cavity 430 and the limiting portion 210 of the inner liner 400 form a substantially closed chamber after the cooperation.

Example 5

As shown in FIGS. 6-13, an ink pen is composed of a writing pen and a pen cover 100 fitted to the front end of the writing pen. In daily use, the writing pen is assembled as a whole for opening the writing or the writing part 300 The front end fits in the pen cover 100 and realizes the storage of the writing pen (FIGS. 6 and 7 respectively show schematic views of the state of the writing pen in the storage and writing states).

As shown in FIGS. 6 and 8a, the pen cover 100 has a cylindrical shape or the like as a whole, with one end sealed and the other end open, and a cavity 110 is also provided in the pen cover 100 for the front end of the writing part 300 to fit therein. Of course, on the basis of achieving the above functions, a number of shapes (as shown in FIG. 6) can also be set on the pen cover 100 (especially the outer wall and the front end) to improve the overall aesthetics of the ink pen, or For the function of the logo (for the identification of characteristics such as color, pen thickness, etc.), the shape may be designed separately for the pen cover 100, or it may be matched with the writing pen as part of the overall design of the ink pen.

As shown in Fig. 8 (8a, 8b, 8c, 8d), the pen holder 200 has a cylindrical shape or a similar shape as a whole (that is, in the case of a cylindrical shape as a whole, local changes may be appropriate), so use The cross-sectional view shown in 8 shows that the structure is more appropriate; the inside of the pen holder 200 is hollow, and the two ends are respectively provided with openings; the pen holder 200 is also provided with an integral injection-molded limiting portion 210, which The hollow cavity in 200 is divided into a first cavity 220 and a second cavity 230, the first cavity 220 communicates with the front port and the second cavity 230 communicates with the rear port, and the limiting portion 210 is provided with Several communication holes 211, so that the first cavity 210 and the second cavity 220 can communicate. The limiting portion 210 includes a positioning cavity 221 protruding toward the second cavity 230 and a guide ring 222 that transitions from the first cavity 220 to the positioning cavity 221. A number of reinforcing ribs 2211 and side channels are provided on the side wall of the positioning cavity 221 The hole 2111 is also provided with a bottom through hole 2112 on the bottom surface thereof. The side through hole 2111 and the bottom through hole 2112 provided on the positioning cavity 221 together form a communication hole 211.

As shown in FIGS. 9 (9a, 9b), the writing part 300 is composed of a pen item 310, a writing core 320, a drainage core 330, and a water storage core 340, which are respectively connected to form a writing part 300 for holding and writing. As shown in FIG. 11, the pen item 310 is composed of a front end 312, a stop ring 311, and a rear end 313. The front end 312 gradually gathers to facilitate gripping and writing, while the rear end 313 can fit into the front end of the pen holder 200 and be fixed, The fixing method can be interference fit, screw thread or clamping. The front end 312 of the pen item 310 is provided with a front port through which the writing core 320 can penetrate. A plurality of fixing ribs 314 for fixing the writing core 320 are arranged annularly along the inner wall of the front port. The air passage 315; the rear end 313 of the pen item 310 is open. The writing core 320 is penetratingly fixed in the front end 312 of the pen item 310, the tip of the front end exposes the front end 312 of the pen item for writing and the rear end is provided in the pen item 310 for drawing ink. The front end of the drainage core 330 is directly in contact with the rear end of the writing core 320 (that is, the end faces are in contact), and the rear end is disposed in the positioning cavity 221; the water storage core 340 is sleeved outside the drainage core 330, and it is made of a hygroscopic material Cheng Yi plays the role of storing ink.

The inner liner 400 is provided with a through hole 410 for the drainage core 330 to pass through. The shape of the through hole 410 is matched with the drainage core 330 so that the drainage core 330 can pass therethrough. The front end of the through hole 410 is also provided with a guide ring 411 to facilitate drainage The core 330 penetrates during assembly. The rear end of the inner liner 400 is further provided with a cavity 430 formed by the rear end wall 431 of the inner liner 400.

The top cover 500 is composed of a top seal 510 and a top cover 520. The top seal 510 cooperates with the inner wall of the rear port of the barrel to seal the second cavity 230 to form a cavity for storing ink; the top cover 520 is fitted to the top At the rear port of the pen holder outside the seal 510, it serves as a second layer of sealing and decoration.

The inner wall of the pen holder 200 is also provided with a plurality of steps or sets of steps for the pen item 310, the inner liner 400 and the top cover 500 to be positioned therein.

Example Six

The main structure of this embodiment is the same as that of Embodiment 5, except that in the ink guiding structure of this embodiment, the inner wall at the rear end of the pen item is provided with a rear fixing rib for fixing the water storage core, and the rear fixing rib is formed on the rear fixing rib There is a step 316 for fixing and positioning the water storage core, and a rear transition section 317 is formed between the step and the rear end opening. The front end of the inner liner 400 is further provided with a fixed edge 420, which is circumferentially arranged along the inner wall of the front end of the inner liner, and a channel is also formed between the fixed edges 420; Between the guide ring transition 422. Therefore, the water storage core is positioned and clamped between the fixing rib at the rear end of the pen and the fixing rib at the front end of the liner, so as to form a relatively complete and compact assembly structure as shown in FIG. 10, so as to facilitate subsequent assembly operations.

The structure of each component of the ink guiding structure is as described above, and the matching relationship during assembly and the matching principle between the components are:

First, the writing core 320 is penetrated through the front end of the pen item 310, and its exposed length meets the writing needs. The water storage core 340 is placed in the rear end of the pen item 310, which is stabilized due to the guiding effect of the rear transition section 317 Ground is fixed in the step 316; the drainage core 330 is penetrated through the water storage core 340, and its front end is in contact with the rear end of the writing core 320, thereby forming the structure of the writing part 300 as shown in FIG. 5, This structure participates in subsequent assembly operations as a basic functional part of the writing pen.

The installation of the inner liner 400 is more convenient, it can be sleeved on the rear end of the assembled writing core 320; when the sleeve is fitted, the rear end of the drainage core 330 passes through the through hole 410, and the rear end of the water storage core 340 is matched with the step 422; the combined structure is shown in FIG. 6. Obviously, the whole of the cooperation between the writing core 320 and the inner liner 400 is further used as a subsequent basic functional part, and they have a unique matching relationship.

Then, the above assembled integrated mechanism is sleeved in the front end of the pen holder 200, and the rear end of the drainage core 330 is fitted in the positioning cavity 221 in the pen holder 200; at this time, the outer wall of the rear end of the pen item 310 and the inner wall of the front end of the pen holder 200 Cooperating for fixed connection, the limit ring 311 protruding on the outer wall of the pen item 310 is matched with the front port of the pen barrel 200. After the combination, a further complete structure is obtained.

Place the above assembled components upright, pour an appropriate amount of ink into the first cavity 220, and sequentially fit the top seal 510 and the top cover 520 to the rear end of the pen holder 200 to obtain the pen body as shown in FIG. 2; Obviously, the first cavity 220 cooperates with the top seal 510 to form an ink cavity for containing ink.

Finally, the pen cover 100 is fastened to the front end of the pen body to form the ink pen of the present invention.

Claims (10)

An ink pen ink guiding structure includes a pen body, the pen body includes a pen barrel and a writing part, the pen barrel includes an ink cavity, a partition and a lower cavity, and the writing part fits into the lower cavity; The writing part includes a writing core, the front end of the writing core exposes the writing part for writing, and the rear end communicates with the ink cavity; The partition is configured such that the rear end of the writing lead communicates directly or indirectly with the ink chamber; It is characterized by, The inside of the pen barrel is hollow, and the two ends are respectively provided with openings; the partition is a limiting part integrally formed in the pen barrel, and the limiting part separates the hollow cavity in the pen barrel into a first cavity and a second cavity In the cavity, a plurality of communication holes are provided on the limiting portion to allow the first cavity to communicate with the second cavity; The ink cavity is formed by the cooperation of the first cavity and the top cover, and the second cavity is used for the writing part. The ink guide structure of an ink pen according to claim 1, wherein the limiting portion includes a positioning cavity protruding toward the first cavity and a guide ring transitioning from the second cavity to the positioning cavity, and the bottom surface of the positioning cavity Or through holes on the side. The ink-guiding structure of an ink pen according to claim 2, wherein a plurality of reinforcing ribs are provided on the side wall of the positioning cavity, and side through holes on the side of the positioning cavity are arranged between the reinforcing ribs at intervals, The side through holes and the bottom through holes provided on the bottom and side surfaces of the positioning cavity together form a communication hole. The ink-guiding structure of an ink pen according to claim 1, wherein the writing part further comprises a drainage core, the front end of the drainage core cooperates with the rear end of the writing core and the rear end communicates with the ink chamber. The ink guide structure of an ink pen according to claim 1 or 4, wherein the writing part further comprises a water storage core, the water storage core is sleeved outside the writing core and / or the drainage core, and is made of a hygroscopic material to make. The ink guide structure of an ink pen according to claim 1, wherein the ink guide structure further comprises an inner liner, and the inner liner is provided with a through hole. The ink guide structure of an ink pen according to claim 6, wherein the rear end of the inner liner is further provided with a cavity formed by the rear end wall of the inner liner. An ink pen includes a writing pen and a pen sleeve matched with the front end of the writing pen. One end of the pen sleeve is sealed and the other end is open, and a cavity is also provided in the pen sleeve for the front end of the writing pen to fit therein; The writing pen includes the ink pen guiding structure of any one of claims 1-7; The writing part further includes a pen item. The pen item includes a front end, a limit ring and a rear end. The rear end of the pen item is matched with and fixed to the front end of the pen barrel. The core is penetratingly fixed in the front end of the pen item, the tip of the front end exposes the pen item, and the rear end is provided in the pen item for sucking ink. The ink pen according to claim 8, wherein the inner wall at the rear end of the pen item is provided with a rear fixing rib for fixing the water storage core, and a step for fixing and positioning the water storage core is formed on the rear fixing rib, A late transition section is formed between the step and the rear end opening; The inner lining is also provided with a fixed rib. The fixed rib is circumferentially provided along the inner wall of the front end of the inner lining, and a channel is formed between the fixed ribs. . The ink pen according to claim 8, wherein the top cover is composed of a top seal and a top cover, the top seal cooperates with the inner wall of the rear port of the barrel to seal the second cavity to form an empty space for storing ink Cavity; the top cover is matched with the rear port of the pen barrel outside the top seal to play the role of the second layer of sealing and decoration.

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