CN213734307U - Ink pen - Google Patents

Abstract

The utility model relates to an ink pen, include: the pen holder is hollow inside to form an accommodating cavity; the pen core is arranged on the pen holder, the upper end of the pen core extends into the accommodating cavity, and the lower end of the pen core is exposed out of the lower part of the pen holder; the ink storage assembly comprises a fixed seat and a first ink storage cotton, the fixed seat is arranged in the accommodating cavity, an ink storage cavity for storing ink is defined above the fixed seat together with the inner wall of the pen holder accommodating cavity, the first ink storage cotton is arranged on the fixed seat and at least partially exposed in the ink storage cavity, and the pen core penetrates through the fixed seat to be in contact with the first ink storage cotton. In the writing process, along with the swinging of the ink pen, the ink in the ink storage cavity can rapidly and continuously infiltrate the first ink storage cotton, so that the first ink storage cotton can continuously supply ink for the pen core, and the problem of insufficient ink supply in the prior art due to too high writing speed or continuous writing process is solved.

Description

Ink pen

Technical Field

The utility model relates to a writing tools technical field especially relates to an ink pen.

Background

Ink pens, such as white board pens, are indispensable tools with large use amount in teaching, and are common office supplies in offices. The existing whiteboard pen generally comprises a pen holder, a roll core for storing ink, a rear seal and a water guiding core, wherein one end of the water guiding core is inserted into the roll core to conduct the ink, and the other end of the water guiding core is exposed out of the pen holder. This uses the core wrap as an ink storage medium because the volume of the core wrap itself is present and the ink stored is very limited, typically not exceeding 3 ml. Such a whiteboard pen structure is disclosed in the chinese utility model with the application number CN 201520919917.1 (publication number CN 205097760U).

In order to solve the above technical problem, the chinese utility model with the application number of cn201520948384.x (with the publication number of CN 205292008U) discloses a "white board pen capable of adding ink", which comprises a hollow pen holder, a wrapping core arranged in the pen holder, a water diversion core with one end inserted into the wrapping core and the other end penetrating the head of the pen holder, an ink storage plug with an ink storage cavity arranged at the tail of the pen holder, and an ink valve located between the wrapping core and the ink storage plug and sealing the opening of the ink storage cavity, wherein the ink valve is provided with an ink injection hole and an exhaust hole which are communicated with the ink storage cavity and the inner cavity of the pen holder close to one end of the wrapping core. When ink is stored in the ink storage plug and the ink in the wrapping core is insufficient, the penholder is inclined, so that the ink in the ink storage plug flows into the wrapping core through the ink injection hole, and meanwhile, part of air in the wrapping core flows into the ink storage cavity through the air exhaust hole, and the ink adding operation of the white board pen is completed.

However, although the whiteboard pen in the above patent can extend the writing time by adding ink through the ink storage plug, it still has certain disadvantages in the actual use process, firstly, the ink storage plug with the ink storage chamber is arranged at the tail of the pen holder, and the refill core in the pen holder is relatively long and the ink storage amount is limited, if the writing speed is too fast or the writing process is continued, the ink replenishing speed in the refill core can not follow up, so that the writing becomes gradually lighter, the writing performance is affected, especially in the writing process in the state that the pen head is inclined upwards, the problem of the ink supply shortage is more serious. Furthermore, even when the conventional ink pen is difficult to use due to the significant deterioration of writing quality, thirty percent or more of ink usually remains in the core, and thus the ink utilization rate is low.

Therefore, further improvements are needed in the existing ink pens.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem to provide an ink pen that supplies ink fast thereby can effectively improve the writing performance to prior art's current situation.

The utility model aims to solve the second technical problem to provide an ink pen that the ink utilization ratio is high to prior art's current situation.

The utility model provides a technical scheme that any above-mentioned technical problem adopted does: an ink pen, comprising:

the pen holder is hollow inside to form an accommodating cavity;

the pen core is arranged on the pen holder, the upper end of the pen core extends into the accommodating cavity, and the lower end of the pen core is exposed out of the lower end of the pen holder;

the ink storage assembly comprises a fixed seat and a first ink storage cotton, the fixed seat is arranged in the accommodating cavity, an ink storage cavity for storing ink is defined above the fixed seat together with the inner wall of the pen holder accommodating cavity, the first ink storage cotton is arranged on the fixed seat and at least partially exposed in the ink storage cavity, and the pen core penetrates through the fixed seat to be in contact with the first ink storage cotton.

In order to avoid the problem of leakage of ink in the ink storage cavity in a high-temperature environment, the fixing seat and the inner wall of the penholder accommodating cavity jointly limit an ink buffer cavity below the fixing seat, the ink buffer cavity is communicated with the ink storage cavity, and second ink storage cotton in contact with the refill is filled in the ink buffer cavity. Under the high temperature environment, the ink in the ink storage cavity correspondingly flows into the ink buffer cavity and is temporarily stored in the second ink storage cotton, so that the ink is prevented from directly leaking out through the pen core.

In order to add ink into the ink storage cavity conveniently, the penholder comprises an upper rod body and a lower rod body, a first cavity with an open lower end is formed in the hollow inner portion of the upper rod body, a second cavity with an open upper end is formed in the hollow inner portion of the lower rod body, the upper end of the lower rod body is detachably connected to the lower end of the lower rod body, and the first cavity and the second cavity jointly form an accommodating cavity of the penholder. When the ink in the ink storage cavity is used up, the upper rod body and the lower rod body can be unscrewed, so that the ink is replenished.

In order to facilitate the assembly of the fixing seat and the pen holder, the fixing seat is basically cylindrical and is axially divided into a fixing section located at the upper part and a connecting section located at the lower part, and the connecting section of the fixing seat is hermetically connected in the second cavity of the lower rod body and encloses with the inner wall of the second cavity to form the ink buffer cavity.

In order to firmly fix the first ink storage cotton on the fixed seat and prevent the first ink storage cotton from falling off from the fixed seat in the using process or in collision so as to ensure that the refill and the first ink storage cotton are always in contact, the fixed section of the fixed seat is provided with a first accommodating groove with an opening at the upper part, and the first ink storage cotton is arranged in the first accommodating groove and is pressed by a cover body correspondingly covering the opening of the first accommodating groove.

In order to firmly connect the cover body with the fixed seat, the periphery of the cover body is provided with a connecting wall which can be embedded into the first placing groove, a first limiting convex rib is arranged on the inner wall of the first placing groove along the circumferential direction, a second limiting convex rib is arranged on the outer wall of the connecting wall along the circumferential direction, and the second limiting convex rib is limited below the first limiting convex rib under the condition that the connecting wall of the cover body is embedded into the first placing groove.

In order to conveniently arrange the second ink storage cotton, a second placing groove with an open lower part is formed in the connecting section of the fixing seat, a connecting hole penetrating through the first placing groove and the second placing groove is formed in the middle of the fixing seat, the second ink storage cotton is arranged in the second placing groove, and the refill is limited in the connecting hole after penetrating through the second ink storage cotton. When the ink pen is assembled, the second ink storage cotton and the first ink storage cotton can be arranged on the fixing seat to form an integral module assembly, and then the integral module assembly is assembled in the pen holder, so that the assembling speed of the ink pen is effectively increased, and the production cost is reduced.

In order to more firmly fix the second ink storage cotton, the port of the connecting hole is provided with a downwardly extending annular wall corresponding to the second placement groove, the second ink storage cotton is annular, and the upper end part of the second ink storage cotton is embedded in a gap space between the outer wall of the annular wall and the inner wall of the second placement groove.

As an improvement, at least one clearance flow channel extending to two ends along the axial direction is formed on the inner wall of the connecting hole. The arrangement of the gap flow channel increases the contact area between the ink and the refill, so that the ink in the first ink storage cotton can be more conveniently and quickly infiltrated into the refill, and the ink supply speed of the refill is increased; on the other hand, when the negative pressure in the ink storage cavity is increased to a certain degree, external air can enter the ink storage cavity through the gap flow passage, and the effect of pressure balance is achieved.

In order to avoid the axial movement of the refill caused by pressing when a user writes and influence on the writing effect, the lower end part of the pen holder is provided with a socket for the refill to be inserted, the inner wall of the socket is provided with a limiting blocking edge, the refill comprises a small-diameter section positioned on the upper part and a large-diameter section positioned on the lower part, a limiting step is formed between the small-diameter section and the large-diameter section, and the limiting step can correspondingly abut against the position below the limiting blocking edge.

Compared with the prior art, the utility model has the advantages that: the first ink storage cotton on the fixed seat of the ink pen is fully contacted with ink in the ink storage cavity and is also contacted with the pen core. On one hand, the first ink storage cotton can achieve the purpose of ink resistance, and the problem of leakage caused by direct contact of ink in the ink storage cavity and the pen core is avoided; on the other hand, in the writing process, along with the writing swing of the ink pen, the ink in the ink storage cavity can quickly and continuously infiltrate the first ink storage cotton, so that the first ink storage cotton can continuously supply ink for the pen core, and the problem of insufficient ink supply in the prior art due to too high writing speed or continuous writing process is solved. In addition, the first ink storage cotton on the fixed seat can be continuously soaked by the ink in the ink storage cavity and is quickly transferred to the pen core, so that a larger volume is not required to be arranged, the ink pen with the normal volume size is ensured to have enough volume for storing the ink, the ink capacity can generally reach about 15ml, and the writing time and the writing service life of the ink pen are effectively prolonged; moreover, because the volume of the first ink storage cotton is relatively small, a large amount of ink cannot be left, and the utilization rate of the ink is improved.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is an exploded view of an embodiment of the present invention;

fig. 3 is an axial cross-sectional view of an embodiment of the invention;

fig. 4 is an axial sectional view of a fixing base according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

Referring to fig. 1-4, an ink pen includes a barrel 10, a refill 30 and an ink storage assembly, wherein the barrel 10 is hollow to form a receiving cavity 20. The cartridge 10 has a socket 13 at a lower end thereof. The cartridge 30 is inserted into the insertion opening 13 of the barrel 10, and specifically, the upper end of the cartridge 30 extends into the accommodating cavity 20, and the lower end of the cartridge 30 is exposed out of the lower portion (insertion opening 13) of the barrel 10. The ink storage part is arranged in the accommodating cavity 20 of the pen holder 10.

Referring to fig. 3, the cartridge 10 includes an upper rod 11 and a lower rod 12. The inside cavity of the upper rod body 11 forms a first cavity with an open lower end, and the inside cavity of the lower rod body 12 forms a second cavity with an open upper end. The upper end of the lower rod 12 is detachably connected to the lower end of the upper rod 11, and specifically, the upper end and the lower end are connected through threads, and after the lower rod 12 is connected to the upper rod 11, the first cavity of the upper rod 11 and the second cavity of the lower rod 12 jointly form the accommodating cavity 20 of the pen holder 10. In order to ensure the sealing performance of the joint position of the lower rod body 12 and the upper rod body 11, a sealing ring (not shown) may be arranged between the two.

Referring to fig. 2 and 3, the lower end of the barrel 10 (the lower shaft 12) has a socket 13 into which the cartridge 30 is inserted, and specifically, a stopper 14 is provided on an inner wall of the socket 13. The pen core 30 comprises a small-diameter section 31 at the upper part and a large-diameter section 32 at the lower part, wherein a limit step 33 is formed between the small-diameter section 31 and the large-diameter section 32. The refill 30 can be inserted into the insertion opening 13 of the pen holder 10, and after the refill 30 is inserted into the insertion opening 13, the limit step 33 can correspondingly abut against the lower part of the limit stop edge 14 of the pen holder 10, so that the axial movement of the refill 30 due to pressing when a user writes is avoided, and the writing effect is not affected. More specifically, the diameter of the small diameter section 31 at the upper part of the pen core 30 may be determined according to the actual ink supply requirement, or a necking section part 34 for delivering the appropriate ink supply may be formed on the basis of the small diameter section 31.

Referring to fig. 3, the ink storage assembly includes a fixing base 40, a cover 41, a first ink storage cotton 44 and a second ink storage cotton 45. The fixing base 40 is disposed in the accommodating cavity 20 of the pen holder 10, and divides the accommodating cavity 20 into an ink storage cavity 21 located at an upper portion and an ink buffer cavity 22 located at a lower portion, wherein the ink storage cavity 21 is used for storing ink, and the ink buffer cavity 22 is used for storing ink flowing out from the ink storage cavity 21 in a high temperature environment. Specifically, the first ink storage cotton 44 and the second ink storage cotton 45 in this embodiment may be made of porous fiber materials, wherein the water absorption or moisture absorption of the first ink storage cotton 44 is greater than that of the second ink storage cotton 45, so that the first ink storage cotton 44 can actively and quickly absorb ink and transmit the ink to the pen core to achieve the purpose of effective ink supply, the second ink storage cotton 45 can absorb the ink overflowing from the ink storage cavity 21 to achieve the purpose of temporary ink buffer, and in the subsequent writing process, the ink in the second ink storage cotton 45 can be smoothly transmitted to the pen core to perform common ink supply with the first ink storage cotton 44.

Referring to fig. 4, the fixing base 40 is substantially cylindrical in whole and is axially divided into an upper fixing section 42 and a lower connecting section 43. In the present embodiment, the fixing section 42 and the connecting section 43 of the fixing base 40 are both cylindrical, wherein the diameter of the fixing section 42 is smaller than that of the connecting section 43. The fixing section 42 has a first accommodating groove 420 with an upper opening, and the first ink storing cotton 44 is disposed in the first accommodating groove 420. The connecting section 43 of the fixing base 40 is provided with a second accommodating groove 430 with an open lower portion, and the second ink storage cotton 45 is arranged in the second accommodating groove 430. The middle of the fixing base 40 is provided with a connection hole 46 penetrating the first and second seating grooves 420 and 430. The cartridge 30 can be inserted into the connection hole 46 of the fixing base 40, and the small diameter section 31 of the cartridge 30 is in contact with the first ink storage cotton 44 placed in the first placement groove 420.

Referring to fig. 3, after the first ink storing cotton 44 is placed in the first accommodating groove 420, it can be pressed by the cover body 41 correspondingly covering the opening of the first accommodating groove 420. The wall of the cover 41 of the present embodiment is a hollow structure, so as to ensure that the ink in the ink storage chamber 21 can be fully contacted with the first ink storage cotton 44. In addition, the peripheral edge of the cover 41 has a connecting wall 410 capable of being embedded into the first placement groove 420, and the inner wall of the first placement groove 420 is circumferentially provided with a first limiting rib 421. Correspondingly, the outer wall of the connecting wall 410 is provided with a second limiting rib 411 along the circumferential direction, and the second limiting rib 411 is limited below the first limiting rib 421 in the state that the connecting wall 410 of the cover body 41 is embedded into the first installation groove 420. With the above structure, the first ink storing cotton 44 is firmly fixed on the fixing base 40, so as to prevent the first ink storing cotton 44 from falling off from the fixing base during use or collision, thereby ensuring that the pen core 30 and the first ink storing cotton 44 are always in contact.

Referring to fig. 3 and 4, in order to fix the second ink storing cotton 45 more firmly, a port of the connection hole 46 of the fixing base 40 has an annular wall 47 extending downward corresponding to the second placing groove 430, so that a gap space between an outer wall of the annular wall 47 and an inner wall of the second placing groove 430 forms an annular groove structure, correspondingly, the second ink storing cotton 45 is annular, and an upper end of the second ink storing cotton 45 is embedded in the annular groove. In addition, the inner diameter of the hole in the middle of the second ink storage cotton 45 is matched with the outer diameter of the small-diameter section 31 of the refill 30, so that the refill 30 can be effectively contacted with the second ink storage cotton 45 when passing through the second ink storage cotton 45. In a high temperature environment, when the pressure in the ink storage chamber 21 increases to a certain degree, the ink in the ink storage chamber 21 correspondingly flows into the ink buffer chamber 22 and is temporarily stored in the second ink storage cotton 45, so as to avoid directly leaking out through the pen core 30.

Referring to fig. 4, the inner wall of the connection hole 46 of the fixing base 40 has at least one clearance flow passage 48 extending axially to both ends. Specifically, the gap flow path 48 of the present embodiment is plural and is provided at intervals in the circumferential direction of the connection hole 46. The gap flow channel 48 is arranged so that external air can enter the ink storage cavity 21 through the gap flow channel 48 during the writing process of the ink pen, thereby realizing the pressure balance function and ensuring the continuous supply of ink for the pen core. It is to be understood that the position of the gap flow path for ventilation is not limited to the above-described structure of being provided on the inner wall of the connection hole 46, and may be provided at other positions of the fixing base as long as the purpose of ventilation can be achieved.

During assembly, the first ink storage cotton 44 may be placed in the first placement groove 420 of the fixing base 40 and pressed by the cover 41, and the second ink storage cotton 45 is placed in the second placement groove 430 of the fixing base 40, so that the fixing base 40, the first ink storage cotton 44 and the second ink storage cotton 45 can form an integral module assembly after assembly, and then the module assembly is assembled in the second cavity 120 of the lower rod 12, and finally the upper rod 11 is connected with the lower rod 12, and assembly can be completed. The structure arrangement effectively improves the assembly speed of the ink pen and reduces the production cost.

The first ink storage cotton on the fixing base of the ink pen of the embodiment is in full contact with ink in the ink storage cavity and is in contact with the pen core. On one hand, the first ink storage cotton can achieve the purpose of ink resistance, and the problem of leakage caused by direct contact of ink in the ink storage cavity and the pen core is avoided; on the other hand, when the ink pen swings, pauses and transversely puts in writing, the ink in the ink storage cavity can quickly and continuously infiltrate the first ink storage cotton, so that the first ink storage cotton can continuously supply ink for the pen core, and the problem of insufficient ink supply caused by excessively high writing speed or continuous writing process in the prior art is solved. In addition, the first ink storage cotton on the fixed seat can be continuously soaked by the ink in the ink storage cavity and is quickly transferred to the pen core, so that a larger volume is not required to be arranged, the ink pen with the normal volume size is ensured to have enough volume for storing the ink, the ink capacity can generally reach about 15ml, and the writing time and the writing service life of the ink pen are effectively prolonged; moreover, because the volume of the first ink storage cotton is relatively small, a large amount of ink cannot be left, and the utilization rate of the ink is improved.

Claims (10)

1. An ink pen, comprising:

the pen holder (10) is internally hollow to form an accommodating cavity (20);

the pen core (30) is arranged on the pen holder (10), the upper end of the pen core (30) extends into the accommodating cavity (20), and the lower end of the pen core (30) is exposed out of the lower end of the pen holder (10);

it is characterized by also comprising:

the ink storage assembly comprises a fixed seat (40) and first ink storage cotton (44), wherein the fixed seat (40) is arranged in the accommodating cavity (20), an ink storage cavity (21) for storing ink is defined above the fixed seat (40) together with the inner wall of the penholder accommodating cavity (20), the first ink storage cotton (44) is arranged on the fixed seat (40) and at least partially exposed in the ink storage cavity (21), and the pen core (30) penetrates through the fixed seat (40) to be in contact with the first ink storage cotton (44).

2. The fountain pen of claim 1, wherein: fixing base (40) with the ink buffer chamber (22) that the inner wall of pen-holder holding chamber (20) injectd the position jointly below fixing base (40), ink buffer chamber (22) with store up ink chamber (21) and be linked together, it has with cotton (45) are stored up to the second of refill (30) contact to fill in ink buffer chamber (22).

3. The fountain pen of claim 2, wherein: the pen holder (10) comprises an upper rod body (11) and a lower rod body (12), wherein a first cavity with an open lower end is formed in the inner hollow part of the upper rod body (11), a second cavity with an open upper end is formed in the inner hollow part of the lower rod body (12), the upper end of the lower rod body (12) is detachably connected with the lower end of the upper rod body (11), and the accommodating cavity (20) of the pen holder (10) is formed by the first cavity and the second cavity together.

4. The fountain pen of claim 3, wherein: the fixing seat (40) is basically cylindrical in whole, and is axially divided into a fixing section (42) located at the upper part and a connecting section (43) located at the lower part, the connecting section (43) of the fixing seat (40) is connected in the second cavity of the lower rod body (12) in a sealing mode, and the connecting section and the inner wall of the second cavity jointly enclose to form the ink buffer cavity (22).

5. The fountain pen of claim 4, wherein: the fixing section (42) of the fixing seat (40) is provided with a first arranging groove (420) with an opening at the upper part, and the first ink storage cotton (44) is arranged in the first arranging groove (420) and is pressed tightly through a cover body (41) correspondingly covered on the opening of the first arranging groove (420).

6. The fountain pen of claim 5, wherein: the periphery of the cover body (41) is provided with a connecting wall (410) which can be arranged in the first arrangement groove (420), the inner wall of the first arrangement groove (420) is circumferentially provided with a first limiting convex rib (421), the outer wall of the connecting wall (410) is circumferentially provided with a second limiting convex rib (411), and the second limiting convex rib (411) is limited below the first limiting convex rib (421) in the state that the connecting wall (410) of the cover body (41) is arranged in the first arrangement groove (420).

7. The fountain pen of claim 5, wherein: a second placing groove (430) with an open lower part is formed in a connecting section (43) of the fixing seat (40), a connecting hole (46) penetrating through the first placing groove (420) and the second placing groove (430) is formed in the middle of the fixing seat (40), the second ink storage cotton (45) is arranged in the second placing groove (430), and the pen core (30) penetrates through the second ink storage cotton (45) and then is limited in the connecting hole (46).

8. The fountain pen of claim 7, wherein: the port of the connecting hole (46) is provided with an annular wall (47) extending downwards corresponding to the second placement groove (430), the second ink storage cotton (45) is annular, and the upper end of the second ink storage cotton (45) is embedded in a gap space between the outer wall of the annular wall (47) and the inner wall of the second placement groove (430).

9. The fountain pen of claim 7, wherein: at least one clearance flow passage (48) extending to two ends along the axial direction is formed on the inner wall of the connecting hole (46).

10. The fountain pen according to any one of claims 1 to 9, wherein: the pen holder is characterized in that the lower end part of the pen holder (10) is provided with a socket (13) for inserting the pen core (30), a limiting blocking edge (14) is arranged on the inner wall of the socket (13), the pen core (30) comprises a small-diameter section (31) located at the upper part and a large-diameter section (32) located at the lower part, a limiting step (33) is formed between the small-diameter section (31) and the large-diameter section (32), and the limiting step (33) can correspondingly abut against the position below the limiting blocking edge (14).

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