CN116714387A - Pen with pen tip - Google Patents

Abstract

The invention discloses a pen, which comprises a pen container, a pen core and a tip sleeve; the pen comprises a pen holder, a pen core, a tip sleeve, a pen core, a pen rod cover and a pen rod, wherein the pen core and the tip sleeve are respectively provided with one pen holder, one end of the pen holder is open, one end of the pen holder is closed, the pen core is inserted on the pen holder, and the tip sleeve is arranged at the closed end of the pen; accordingly, the pen is configured as a single-ended pen; or the pen core and the tip sleeve are respectively provided with two pen cores, the two ends of the pen container are open, the two pen cores are inserted into the pen container at intervals, and the pen points of the two pen cores face opposite directions; the two tip sleeves are respectively arranged at two ends of the pen container in a sliding manner; accordingly, the pen is configured as a dual-headed pen; the pen container is provided with a control structure, and the control structure is used for controlling the positions of the tip sleeves so that the two tip sleeves are respectively provided with a first station where the pen point is exposed and a second station where the pen point is concealed. In the pen, the nib cover can slide reciprocally relative to the pen container, when the pen is used, the nib cover is retracted and the nib of the pen core is exposed, when the pen is not used, the nib cover moves outwards and covers the nib, the nib is protected, and the nib is prevented from being colored by mistake and injuring other objects by mistake.

Description

Pen with pen tip

Technical Field

The invention belongs to the technical field of stationery, and particularly relates to a pen.

Background

Pens are one type of stationery, including pens, pencils, neutral pens, ballpoint pens, and the like, with neutral pens and ballpoint pens being most commonly used today. The gel pen and the ball pen are similar in structure, in the capped pen structure, the gel pen and the ball pen comprise a pen holder, a tip sleeve, a pen core and a pen cap, one end of the pen holder is open, the pen core is inserted into the pen holder from the open end of the pen holder, the tip sleeve is detachably fixed at the open end of the pen holder and fixes the pen core, and the pulling-out and the placing-back of the pen cap control whether the pen core is exposed or not.

Taking a gel ink pen as an example, a pen holder, a tip sleeve and a pen core are relatively connected into a whole, a pen cap is a part alone, and when the gel ink pen is used, the pen cap is required to be pulled out from the pen holder to expose the pen core, so that the following problems exist during use: due to the difference of writing habits, a part of users are used to fasten the pulled-out pen cap at the tail end of the pen holder, and the pen cap is convenient to put back after being used; the other part of users are used to place the pen cap at will, which can not timely retrieve the pen cap after use, even can not retrieve the pen cap without placing the pen cap for the pen, further, the pen point is exposed outside for a long time, the pen point is easy to dye other contact objects, the service performance and the service life of the pen point are affected, the pen point belongs to a sharp metal object, the pen cap is lack of shielding, and potential safety hazards exist.

In the structure of the pen with the cap, the pen cap protects the pen point, so that the pen point is prevented from being mistakenly colored and injurious to other objects, and the pen cap becomes an indispensable part of the pen. However, the pen cap used as an external part after the pen cap is pulled out has the defect of inconvenient management; moreover, pulling out, placing, retrieving, and placing the cap back allows excessive movement of the pen once, resulting in inefficiency.

Disclosure of Invention

The present invention is directed to a pen for solving the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a pen comprises a pen container, a pen core and a tip sleeve;

the pen comprises a pen holder, a pen core, a tip sleeve, a pen core, a pen rod cover and a pen rod, wherein the pen core and the tip sleeve are respectively provided with one pen holder, one end of the pen holder is open, one end of the pen holder is closed, the pen core is inserted on the pen holder, and the tip sleeve is arranged at the closed end of the pen; accordingly, the pen is configured as a single-ended pen;

or the pen core and the tip sleeve are respectively provided with two pen cores, the two ends of the pen container are open, the two pen cores are inserted into the pen container at intervals, and the pen points of the two pen cores face opposite directions; the two tip sleeves are respectively arranged at two ends of the pen container in a sliding manner; accordingly, the pen is configured as a dual-headed pen;

the pen container is provided with a control structure, and the control structure is used for controlling the positions of the tip sleeves so that the two tip sleeves are respectively provided with a first station where the pen point is exposed and a second station where the pen point is concealed.

In one possible design, the control structure is provided with one or two, and the control structure, the pen refill and the tip sleeve are arranged in a one-to-one correspondence.

In one possible design, the control structure comprises a reset elastic piece, a control piece and a limiting piece, wherein the reset elastic piece is sleeved at the nib of the pen core, one end of the reset elastic piece is abutted to the pen core, and the other end of the reset elastic piece is abutted to the tip sleeve; the control piece is arranged on the pen container and connected with the tip sleeve, and the limiting piece is arranged on the pen container and is abutted with the tail part of the pen core;

when the control structure, the pen core and the tip sleeve are respectively provided with two, the control structure is respectively arranged towards the two ends of the pen container and connected with the corresponding tip sleeve, wherein the control structure comprises two keys and two auxiliary elastic pieces, the two keys are oppositely arranged, the two auxiliary elastic pieces are arranged at intervals, and the two ends of the auxiliary elastic pieces are respectively abutted to the two keys.

In one possible design, the control includes a key, a control hook, and a limit hook;

the keys are inserted into the pen container and connected with the pen container through the auxiliary elastic piece, correspondingly, the pen container is provided with operation holes adapted to the keys, and the keys can reciprocate along the operation holes;

one end of the control hook is fixedly connected with a key, and the other end of the control hook is provided with a hook body; correspondingly, one end of the limiting hook is fixedly connected with the tip sleeve, and the other end of the limiting hook faces the control hook and is provided with a limiting groove which is adapted to the hook body.

In one possible design, when the structure is a double-ended pen, two keys are provided, and two coaxial operation holes are provided on the pen container, so that the two keys are oppositely arranged and connected through the auxiliary elastic piece.

In one possible design, the limit slot comprises a first slot body and a second slot body, wherein the first slot body is far away from the control hook and is provided with a first abutting surface matched with the hook body, the second slot body is adjacent to the control hook and is provided with a second abutting surface matched with the hook body, the end part of the second abutting surface is configured as a unhooking arc surface, and correspondingly, the end part of the hook body is provided with a secondary arc surface matched with the unhooking arc surface;

correspondingly, a limiting block is arranged between the first groove body and the second groove body, the limiting block is provided with two opposite outer surfaces, the outer surface facing the first groove body is configured to be a first abutting surface, the outer surface facing the second groove body is configured to be a sliding inclined surface, the sliding inclined surface gradually inclines downwards from the first groove body to the second groove body, and the height of the limiting block is lower than that of the second abutting surface;

in one possible design, the end of the limit hook adjacent to the control hook is provided with two opposite side surfaces, wherein one side surface is provided with the limit groove, the other side surface is configured as an unhooking inclined surface inclined to the limit groove, and correspondingly, the pen container is provided with an inner groove adapted to the unhooking inclined surface.

In one possible design, the two ends of the tip sleeve are open, one end of the tip sleeve is connected with the pen container through the sliding guide cylinder, the other end of the tip sleeve is gradually converged and forms an opening adapted to the pen core, and correspondingly, the peripheral surface of the tip sleeve is configured to be adapted to the holding surface of a human body;

the sliding guide cylinder is of a cylindrical structure with two open ends, the inner periphery of the sliding guide cylinder is provided with a guide groove extending to the tip sleeve, and correspondingly, the limiting hook is arranged on the guide groove in a penetrating manner and connected to the sliding guide cylinder; one end of the sliding guide cylinder, which is adjacent to the pen container, is provided with a notch for installing the pen core.

In one possible design, the sliding guide cylinder is sleeved with an elastic ring, and the elastic ring is positioned at the joint of the tip sleeve and the sliding guide cylinder.

In one possible design, when the pen core and the tip sleeve are respectively provided with one pen container, one end of the pen container is opened, the other end of the pen container is closed, and the limiting piece is configured as the closed end of the pen container;

or when two pen cores and two tip sleeves are respectively arranged, two ends of the pen container are open, and the limiting piece is structured as a stop lever fixed on the pen container.

The beneficial effects are that:

the pen point sleeve can slide back and forth relative to the pen container, when the pen is used, the pen point sleeve is retracted and exposed, when the pen is not used, the pen point sleeve moves outwards and covers the pen point, the pen point is protected, and the pen point is prevented from being colored by mistake and injuring other objects by mistake. Based on the design of the integrated movable pen cap with the pen cap, the function of the pen cap is expanded, so that the pen cap has the functions of the traditional pen cap, the trouble of managing one additional piece (pen cap) is avoided, the defects of losing the protection of the pen tip, affecting the writing performance and being easy to cause error coloring and error damage to surrounding objects caused by the fact that the pen cap is not timely placed back are avoided; on the other hand, the original 4-step pen using process of pulling the pen cap, placing the pen cap, searching the pen cap and placing the pen cap is shortened to the 2-step pen using process of pulling the pen point sleeve to expose the pen point and pressing the control key to enable the pen point to be hidden, and the process is shortened to improve the pen using efficiency. From the perspective of ergonomics, the 2-step pen using process has the condition of smooth operation by one hand, and is easier to use than the 4-step pen using process of a capped pen. In addition, the pen cap is not needed, and the management burden of the extra accessory is not needed, so that the easy management and maintenance of the pen are improved.

Meanwhile, based on the design of the movable type nib sleeve and pen cap integration, in one possible design, two pen cores and nib sleeves are respectively arranged, two pen cores are inserted in the pen container at intervals, two pen points face the two ends of the pen container respectively, and the two nib sleeves are respectively arranged at the two ends of the pen container in a sliding manner, so that one pen has two writing parts at the same time, the pen has the function of writing two colors or the new adding of ink quality at the same time, and the diversity of writing results is increased. The pen has double colors, and especially when the pen is internally provided with the neutral pen core which is most widely used, the pen is beneficial to many pen-using scenes such as correction of students, correction of teachers, drawing of designers and the like, the requirement of the students on double-color alternate writing is greatly met, and the stability and convenience of color switching in the pen-using process are improved.

Drawings

Fig. 1 is a schematic view of a pen.

Fig. 2 is a schematic cross-sectional view of fig. 1.

Fig. 3 is a schematic view of the structure of fig. 1 with parts removed.

Fig. 4 is a schematic diagram of the explosive structure of fig. 1.

Fig. 5 is a schematic view of an exploded structure of the pen container.

Fig. 6 is a schematic structural view of the control member.

Fig. 7 is a schematic view of the structure of the tip cover.

In the figure:

1. a pen container; 101. an operation hole; 102. an inner groove; 2. a pen core; 3. a tip sleeve; 301. a sliding guide cylinder; 302. a guide groove; 303. a notch; 304. an elastic ring; 4. a control structure; 5. a return elastic member; 6. a control member; 61. a key; 62. a control hook; 63. a limit hook; 601. a sub elastic member; 602. a hook body; 603. a limit groove; 604. a first tank body; 605. a second tank body; 606. a first abutment surface; 607. a second abutment surface; 608. arc unhooking surface; 609. a limiting block; 610. unhooking inclined plane; 611. clamping strips; 612. sleeving a shaft; 613. an auxiliary arc surface; 7. and a limiting piece.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention.

Examples:

as shown in fig. 1 to 7, a pen comprises a barrel 1, a pen core 2 and a tip sleeve 3;

the pen core 2 and the tip sleeve 3 are respectively provided with one pen container 1, one end of the pen container is open, the other end of the pen container is closed, the pen core 2 is inserted into the pen container 1, and the tip sleeve 3 is arranged at the closed end of the pen container 1 in a sliding manner; accordingly, the pen is configured as a single-ended pen;

or two pen cores 2 and a tip sleeve 3 are respectively arranged, two ends of the pen container 1 are open, the two pen cores 2 are inserted into the pen container 1 at intervals, and the pen points of the two pen cores 2 face opposite directions; the two tip sleeves 3 are respectively arranged at two ends of the pen container 1 in a sliding manner; accordingly, the pen is configured as a dual-headed pen;

the pen container 1 is provided with a control structure 4, and the control structure 4 is used for controlling the positions of the tip sleeves 3, so that the two tip sleeves 3 are respectively provided with a first station with exposed pen points and a second station with concealed pen points.

The pen adopts the integral type design for the nib cover 3 can slide reciprocally relative to pen container 1, and when using the pen, nib cover 3 is retracted and makes the nib expose, and when need not the pen, nib cover 3 moves outward and covers the nib, realizes protecting the nib, avoids the nib to other objects mistake coloring, the injury by mistake. Based on the structure, the pen cap is replaced by the pen cap with the pen cap 3 capable of sliding back and forth, so that the trouble of managing one external part (pen cap) is avoided, the defects that the pen cap is lost and cannot be put back in time are avoided, the pen point is lost to protect, the writing performance is influenced, and the surrounding objects are easy to be colored and hurt by mistake; on the other hand, the pen using process is simplified, and the pen using efficiency is improved.

In terms of writing habit, the user can hold the tip sleeve 3 by fingers, and the position of the tip sleeve 3 can be switched by pulling the tip sleeve 3 inwards when the pen is held for writing, so that whether the pen point is exposed or not is controlled. Compared with the prior art, the pen cap is disassembled and assembled, the pen can be operated by only one hand, and the pen is more convenient to use. Compared with a 'push-type pen' which is also operated by one hand, the push button is firstly pressed by one hand gesture to expose the pen core, and then the pen core is switched to the writing gesture for writing, in the embodiment, the action of inwards lifting the pen point to expose the pen point by the finger-clamping tip sleeve 3 can be performed at the same time of the configuration writing action, thus saving a special action of pressing the push button to drive the pen point to be exposed compared with the push button, and improving the pen utilization efficiency.

The tip sleeve 3 is clamped by opposite fingers and pushed outwards or the other hand is used for assisting in pulling out the tip sleeve 3, the position of the tip sleeve 3 is controlled to be more convenient and faster through the control structure 4, and physical examination of a user is better. Meanwhile, the fixing of the position of the tip sleeve 3 is realized through the control structure 4, namely, when a pen is used, the tip sleeve 3 can be stably positioned at the first station, and when the pen is not used, the tip sleeve 3 can be stably positioned at the second station, so that accidental disturbance of the tip sleeve 3 is avoided, and the pen using experience of a user is disturbed.

The inconvenience of pen cap management and the tedious trend of using procedures lead people to make improvements in the structure of pens, and a cap-free pen structure represented by a 'push-type neutral/ball pen' is produced, which consists of a tip sleeve, a pen core, a pen holder and a top control button system for controlling the ejection or retraction of the pen core. In the structure, the pen refill can be exposed or not by repeatedly pressing the top control button, so that the pen cap is canceled, the management inconvenience of the former capped pen caused by redundant accessories is overcome, the pen using process is simplified, and the efficiency is improved. However, the structure that one end is a pen point and the other end is a control button determines that the pen has a writing part only at one end, so that the possibility that both ends can write and different colors and ink quality can be written is lost. Therefore, the cap-free pen has the defect of unique writing part and single writing color or ink quality.

Based on this, the pen is provided with two pen cores 2 and two tip sleeves 3, so that both ends of the pen container 1 can be used for writing to form a double-ended pen, and one pen simultaneously has two writing parts, so that the pen has the function of simultaneously writing two colors or adding ink, and the diversity of writing results is increased.

In addition, for the double-end pen, on one hand, two pen cores 2 can be used alternately, so that the service life of the pen is prolonged, the frequency and the frequency of changing the pen cores are reduced, and on the other hand, two pen cores 2 can be matched into pen cores with different colors or pen cores with different ink qualities, so that a user can use the double-end pen as required without changing the pen, richer writing results can be obtained, and the number of pens required to be carried by the user is reduced.

Furthermore, the pen can also be constructed as a single-ended pen, namely a pen core 2 and a tip sleeve, and compared with a double-ended pen, the single-ended pen has simpler structure, smaller outer diameter of the pen container 1 and more convenient holding hand feeling.

In this embodiment, one or two control structures 4 are provided, and the control structures 4, the pen cores 2 and the tip sleeve 3 are arranged in a one-to-one correspondence.

Based on the above design scheme, the control structure 4, the pen core 2 and the tip sleeve 3 are respectively provided with two and are arranged in one-to-one correspondence, so that the volume of the pen container 1 is properly increased and the pen container is provided with an adaptive installation space on the basis of not damaging the holding hand feeling. Correspondingly, the shape of the end, connected with the pen container 1, of the tip sleeve 3 is adapted to the pen container 1 and is properly enlarged, and the end, far away from the pen container 1, of the tip sleeve 3 is converged and adapted to a human body, so that the holding experience is improved.

In addition, as no additional mechanical matching structure is additionally arranged on the pen core 2, a large number of main stream types and main stream specifications of pen cores 2 on the market can be matched with the pen, so that the selection surface of a user on personalized selection of the pen cores is greatly enriched, and the richness of the pen in writing ink trace thickness, ink quality and color is greatly enhanced.

In one possible implementation manner, the control structure 4 comprises a reset elastic piece 5, a control piece 6 and a limiting piece 7, wherein the reset elastic piece 5 is sleeved at the nib of the pen core 2, one end of the reset elastic piece 5 is abutted to the pen core 2, and the other end is abutted to the tip sleeve 3; the control piece 6 is arranged on the pen container 1 and connected with the tip sleeve 3, and the limiting piece 7 is arranged on the pen container 1 and is abutted with the tail of the pen core 2.

Based on the above design, the elastic reset piece 5 provides elasticity to realize the automatic reset of the tip sleeve 3, reduce the operation amount of the user and improve the convenience of use. The control member 6 cooperates with the limiting member 7 on the one hand to stabilize the station where the tip sleeve 3 is located, and cooperates with the resetting elastic member 5 on the other hand to switch the station where the tip sleeve 3 is located.

The limiting piece 7 is matched with an elastic resetting piece to avoid disturbance of the position of the tip sleeve 3, namely, the resetting elastic piece 5 is connected with the pen core 2, when the pen core 2 is fixed, the elastic force of the resetting elastic piece 5 is fully applied to the tip sleeve 3, so that the tip sleeve 3 is ensured to reset and stably maintain a reset state under the action of abundant elastic force. If the pen core 2 can move, the elastic force of the reset elastic piece 5 is used for driving the tip sleeve 3 and the pen core 2 to move at the same time, the accuracy and the retention degree of resetting of the tip sleeve 3 are greatly reduced, so that the position of the pen core 2 relative to the pen core is fixed by arranging the limiting piece 7 on the pen core 1, and the reset elastic piece sleeved on the pen core 2 can be stably supported at one end, so that stable and sufficient elastic force can be applied to the tip sleeve 3 abutted to the other end, and stable working conditions can be realized when the tip sleeve 3 is driven to reciprocate.

As shown in fig. 2 to 4, the control member 6 includes a key 61, a control hook 62 and a limit hook 63;

the keys 61 are inserted into the pen container 1 and connected with the pen container 1 through the auxiliary elastic piece 601, and correspondingly, the pen container 1 is provided with operation holes 101 which are matched with the keys 61, and the keys 61 can reciprocate along the operation holes 101;

one end of the control hook 62 is fixedly connected with the key 61, and the other end of the control hook 62 is provided with a hook body 602; correspondingly, one end of the limiting hook 63 is fixedly connected with the tip sleeve 3, and the other end of the limiting hook 63 faces the control hook 62 and is provided with a limiting groove 603 which is matched with the hook body 602.

Based on the above design, when the key 61 is connected with the control hook 62, and the key 61 is pressed, the control hook 62 moves along with the key, and a relative movement occurs between the control hook 62 and the limit hook 63, and then the hook body 602 moves relative to the limit groove 603, when the hook body 602 is separated from the limit groove 603, the position of the limit hook 63 cannot be limited by the control hook 62, and the limit hook 63 is fixedly connected with the tip sleeve 3, so that the tip sleeve 3 can slide under the elastic force of the reset elastic member 5.

Preferably, the limiting groove 603 comprises a first groove body 604 and a second groove body 605, the first groove body 604 is far away from the control hook 62 and is provided with a first abutting surface 606 which is matched with the hook body 602, the second groove body 605 is adjacent to the control hook 62 and is provided with a second abutting surface 607 which is matched with the hook body 602, the end part of the second abutting surface 607 is configured as a unhooking circular arc surface 608, and correspondingly, the end part of the hook body 602 is provided with a secondary circular arc surface 613 which is matched with the unhooking circular arc surface 608;

correspondingly, a limiting block 609 is arranged between the first groove body 604 and the second groove body 605, the limiting block 609 is provided with two opposite outer surfaces, the outer surface facing the first groove body 604 is configured as a first abutting surface 606, the outer surface facing the second groove body 605 is configured as a sliding inclined surface, the sliding inclined surface gradually inclines downwards from the first groove body 604 to the second groove body 605, and the height of the limiting block 609 is lower than that of the second abutting surface 607.

Considering that the tip cover 3 has two stations, the limiting groove 603 includes a first groove body 604 and a second groove body 605, and the first groove body 604 corresponds to the first station and the second groove body 605 corresponds to the second station. Based on this, no matter the point cover 3 is in that station, control hook 62 and limit hook 63 are in connected state all the time, then can ensure through control structure 4 that point cover 3 connects pen container 1, need not to set up limit structure between point cover 3 and pen container 1, simplified the structure, reserve sufficient space for other parts. And the smoothness of the movement of the hook 602 between the first groove 604 and the second groove 605 is improved by the limiting block 609.

Meanwhile, considering the core replacement requirement after long-time use, the second groove body 605 is provided with a unhooking arc surface 608, so that the control hook 62 is conveniently separated from the limit hook 63, the tip sleeve 3 is further taken down from the pen container 1, and the replacement of the pen core 2 is further realized. In addition, because no limit structure exists between the tip sleeve 3 and the pen container 1, the tip sleeve 3 is easy and convenient to assemble and disassemble, and the convenience of replacing the core is improved.

Considering that the space in the barrel 1 is relatively narrow, in order to improve the convenience and efficiency of the removal of the tip cover 3, it is preferable that one end of the limiting hook 63 adjacent to the control hook 62 has two opposite sides, one of which is provided with the limiting groove 603 and the other of which is configured as the unhooking inclined surface 610 inclined toward the limiting groove 603, and accordingly, the barrel 1 is provided with the inner groove 102 adapted to the unhooking inclined surface 610. Based on this, the limiting hook 63 can move in the direction of the inner groove 102 and be partially inserted into the inner groove 102, so that the distance between the hook 602 and the second abutting surface 607 is larger, the hook 602 can more easily pass through the unhooking circular arc surface 608 to realize smooth unhooking when the tip sleeve 3 is pulled out by external force, and when the tip sleeve 3 is pulled out by no larger external force, the force of the elastic reset piece 5 is insufficient to enable the limiting hook 63 to elastically deform, so that the unhooking inclined plane 610 moves in the inner groove 102, a larger distance is insufficient to generate, and accidental unhooking caused when the key 61 is pressed down is avoided.

When the tip sleeve 3 is at the second station, the hook 602 is inserted into the second groove 605 and abuts against the second abutting surface 607, the elastic restoring member 5 is in an initial compression amount and has repulsive force, so that the tip of the tip sleeve 3 keeps away from the pen container 1, and the pen point is embedded in the tip sleeve 3. When the pen is used, a user pushes the nib sleeve 3 towards the pen container 1, the hook 602 passes through the sliding inclined plane on the limiting block 609 and is inserted into the first groove 604, the hook 602 is abutted with the first abutting surface 606, the compression amount of the elastic resetting piece is increased, the nib is exposed due to the inward retraction of the nib sleeve 3, and at the moment, the nib sleeve 3 is in the first station. When the pen is not needed, the key 61 is pressed, the key 61 drives the control hook 62 to move, the hook body 602 passes through the limiting block 609 and is separated from contact with the first abutting surface 606, the limiting hook 63 and the tip sleeve 3 move outwards under the elastic force of the reset elastic piece 5 until the hook body 602 returns to the second groove body 605 and abuts against the second abutting surface 607, the tip sleeve 3 is switched from the first station to the second station, at the moment, the key 61 is released, the key 61 is reset under the action force of the auxiliary elastic piece 601, the contact area of the hook body 602 and the second abutting surface 607 is increased, the tip sleeve 3 cannot be separated from the pen container 1, and the movement of the pen container 1 is kept under the action force of the elastic reset piece 5, so that the pen point is stabilized to the second station, and the built-in state of the pen point is kept.

When the refill 2 is replaced, the key 61 is pressed to the bottom, the distance between the arc top of the auxiliary arc surface 613 on the hook 602 fixedly connected with the key and the arc top of the unhooking arc surface 608 is reduced, but the arc top of the unhooking arc surface 608 is only abutted against the arc bottom of the auxiliary arc surface 613, at this time, the unhooking arc surface 608 still cannot completely cross the hook 602, which is a protective size design, namely, when the key 61 is prevented from being touched to the bottom by mistake, the tip sleeve 3 is caused to be unhooked accidentally under the continuous elastic force of the elastic reset piece 5. However, when the pen core is to be replaced by intentionally removing the tip cover 3, the tip cover 3 needs to be continuously and outwardly removed while the key 61 is kept continuously pressed, the limit hook 63 fixedly connected with the tip cover 3 is close to one end of the hook body 602, deformation can occur under the extrusion of the hook body 602 which cannot be moved any more, the unhooking inclined plane 610 of the limit hook is forced to be inserted into the inner groove 102, at this time, the arc top of the unhooking arc surface 608 is abutted against the arc top of the auxiliary arc surface 613, and under the action of external force of continuously and outwardly removing the tip cover 3, the arc top of the unhooking arc surface 608 slides along the arc section from the arc top of the auxiliary arc surface 613 to the arc bottom of the other side, and is separated from the hook body 602 until the limit hook 63 is completely separated from the control hook 62. The tip sleeve 3 is pulled outwards until the tip sleeve 3 is separated from the pen container 1, the pen core 2 is exposed, the pen core 2 is replaced at the moment, and the tip sleeve 3 is reinstalled, so that the core replacement can be smoothly completed.

Correspondingly, when the control structure 4, the pen core 2 and the tip sleeve 3 are respectively provided with two, the control structure 4 is respectively arranged towards two ends of the pen container 1 and is connected with the corresponding tip sleeve 3, wherein the control structure 4 comprises two keys 61 and two auxiliary elastic pieces 601, the two keys 61 are oppositely arranged, the two auxiliary elastic pieces 601 are arranged at intervals, and two ends of the auxiliary elastic pieces 601 are respectively abutted to the two keys 61.

Based on this, when the structure is a double-ended pen, the keys 61 are provided in two, and the pen container 1 is provided with two coaxial operation holes 101 such that the two keys 61 are disposed opposite to each other and connected by the sub elastic member 601. For the control structure 4, the key 61 is arranged in a central symmetry way by taking the position of the key 61 as the center, so that the volume can be reduced, and the normal operation is ensured. Simultaneously, the two control structures 4 are respectively corresponding to the opposite keys 61, and the two functions of station switching of the tip sleeve 3 and disassembling and assembling of the pen core 2 are realized through the difference of pressing amplitudes, so that the internal structure of the pen container 1 is greatly simplified, and the simplicity of the appearance of the pen container 1 is improved.

As shown in fig. 6, the two ends of the key 61 are provided with a clamping bar 611 for clamping the pen container 1, and on the basis of this, the key 61 is prevented from being separated from the pen container 1 after receiving the elastic force of the auxiliary elastic member 601 by the clamping bar 611. The bottom surface of the key 61 is provided with a sleeve joint shaft 612 which is adapted to the auxiliary elastic member 601, and the auxiliary elastic member 601 is sleeved on the sleeve joint shaft 612 and connected with the key 61.

Alternatively, the return elastic member 5 and the auxiliary elastic member 601 are respectively any suitable commercially available coil springs, which have various specifications and a wide selection range.

As shown in fig. 3, 4 and 7, the tip cover 3 is open at both ends, one end of which is connected to the barrel 1 through the sliding guide cylinder 301, and the other end is gradually convergent and forms an opening adapted to the cartridge 2, and accordingly, the outer circumferential surface of the tip cover 3 is configured to be adapted to the grip surface of the human body;

the sliding guide cylinder 301 is configured into a cylindrical structure with two open ends, a guide groove 302 extending to the tip sleeve 3 is arranged on the inner periphery of the sliding guide cylinder 301, and correspondingly, the limit hook 63 is arranged on the guide groove 302 in a penetrating manner and is connected to the sliding guide cylinder 301; the end of the sliding guide cylinder 301 adjacent to the pen container 1 is provided with a notch 303 for mounting the cartridge 2.

Based on the above design, the tip sleeve 3 is slidably disposed in the barrel 1 through the sliding guide cylinder 301, and when the tip sleeve 3 switches stations, the sliding guide cylinder 301 slides reciprocally along the end of the barrel 1 to guide the moving path, so that the tip sleeve 3 slides stably and reliably under constraint. Meanwhile, when the pen is configured as a double-ended pen, two pen cores 2 are arranged in the pen container 1, and the holding hand feeling is affected by the overlarge pen container 1, so as shown in fig. 7, the volume of the pen container 1 is narrowed as much as possible, when the inner diameter of the too narrow sliding guide cylinder 301 is inconvenient for assembling and disassembling the pen cores 2, a notch 303 is arranged on the sliding guide cylinder 301, and when the pen cores 2 are relatively inclined towards the sliding guide cylinder 301, the sectional area of the notch 303 on the inclined surface is larger, so that the smooth assembling and disassembling of the pen cores 2 is realized.

It is easy to understand that on the basis of guaranteeing to hold the feel, the point cover 3 can be constructed to be arbitrary suitable shape, and each finger pressure contact point atress area is bigger when making point cover 3 hold, and atress position is more reasonable, has promoted the comfort level and the fluency of exerting oneself when writing.

Preferably, the sliding guide cylinder 301 is sleeved with an elastic ring 304, and the elastic ring 304 is positioned at the joint of the tip sleeve 3 and the sliding guide cylinder 301. Based on this, the elastic ring 304 is used in cooperation with the reset elastic member 5, and gives a certain buffer when the tip cover 3 switches stations, improving the hand feeling. When the tip cover 3 is in the first station, the elastic ring 304 is made of elastic material to close the fine gap between the tip cover 3 and the pen container 1, so that the overall appearance sense of the pen in a writable state is enhanced.

In addition, when the pen is configured as a double-ended pen, the two elastic rings 304 select the colors corresponding to the respective pen cores 2, so as to play a role in color indication, facilitate a user to quickly identify what colors are respectively formed by the pen cores at each end, and avoid the embarrassment and inefficiency that the user can only draw one pen to confirm the colors when no mark exists.

Further, the tip sleeve 3, the sliding guide cylinder 301 and the limiting hooks 63 are sequentially connected, so that displacement of the limiting hooks 63 is transmitted to the tip sleeve 3, and reciprocating sliding of the tip sleeve 3 relative to the pen container 1 is achieved. Based on this, when the pen is constructed as a double-ended pen, the nib 3 is preferably integrally formed with the sliding guide cylinder 301, and the stopper hook 63 is inserted and fixed into the sliding guide cylinder 301. When the pen is configured as a single-head pen, the sliding guide cylinder 301 is preferably integrally formed with the limit hooks 63, and the sliding guide cylinder 301 is then inserted and fixed to the tip cover 3.

In one possible embodiment, when the pen core 2 and the nib 3 are provided one each, the pen container 1 is closed at one end and the stopper 7 is configured as a closed end of the pen container 1. Based on the structure, the pen is constructed as a single-head pen, so that the structural characteristics of the pen container 1 are fully utilized, the number of parts is reduced, the structure is simplified, and the failure rate is reduced.

It is easy to understand that when the pen is configured as a single-head pen, the pen container 1, the pen core 2, the tip sleeve 3 and the control structure 4 are respectively provided with one, the tip sleeve 3 is detachably arranged at one end of the pen container 1, the pen core 2 is inserted into the pen container 1, one end of the pen core 2 is abutted to the closed end of the pen container, the other end of the pen core is arranged on the tip sleeve 3 in a penetrating manner, and the control structure is arranged on the pen container 1 and used for controlling the position of the tip sleeve 3 so that the tip sleeve 3 is switched between the first station and the second station.

It is easy to understand that the working principle of the control structure 4 has been described in connection with its structure, and will not be described in detail here.

In another possible implementation, when two cartridges 2 and sleeves 3 are provided, respectively, the pen container 1 is open at both ends, and the stopper 7 is configured as a bar fixed to the pen container 1. Based on this, when the pen is constructed as a double-ended pen, the stop lever is utilized to realize the limit, so that the pen refill 2 is ensured to be fixed in the pen container 1.

Alternatively, as shown in fig. 5, two cartridges 2 are installed in the pen container 1, and only the middle of the pen container 1 has a space for installing a stop lever, so the stop lever is configured as an L-shaped lever, the L-shaped lever is fixed on the pen container 1 and extends toward the tail of the cartridge 2, and the portion of the L-shaped lever beyond the tail of the cartridge 2 is bent and abutted against the cartridge 2.

Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A pen, which is characterized by comprising a pen container (1), a pen core (2) and a tip sleeve (3);

the pen comprises a pen holder (1), a pen core (2) and a tip sleeve (3), wherein the pen holder (1) is provided with an opening at one end and a closing at one end, the pen core (2) is inserted on the pen holder (1), and the tip sleeve (3) is arranged at the closing end of the pen holder (1) in a sliding manner; accordingly, the pen is configured as a single-ended pen;

or two pen cores (2) and two tip sleeves (3) are respectively arranged, two ends of the pen container (1) are open, the two pen cores (2) are inserted into the pen container (1) at intervals, and the pen points of the two pen cores (2) face opposite directions; the two tip sleeves (3) are respectively arranged at the two ends of the pen container (1) in a sliding manner; accordingly, the pen is configured as a dual-headed pen;

the pen container (1) is provided with a control structure (4), and the control structure (4) is used for controlling the positions of the nib sleeves (3) so that the two nib sleeves (3) are respectively provided with a first station where the nib is exposed and a second station where the nib is concealed.

2. Pen according to claim 1, characterized in that the control structure (4) is provided with one or two and that the control structure (4), the cartridge (2) and the nib (3) are arranged in a one-to-one correspondence.

3. The pen according to claim 2, characterized in that the control structure (4) comprises a reset elastic member (5), a control member (6) and a limiting member (7), wherein the reset elastic member (5) is sleeved at the pen point of the pen core (2), one end of the reset elastic member (5) is abutted to the pen core (2), and the other end is abutted to the tip sleeve (3); the control piece (6) is arranged on the pen container (1) and connected with the tip sleeve (3), and the limiting piece (7) is arranged on the pen container (1) and is abutted with the tail part of the pen core (2);

when control structure (4), refill (2) and point cover (3) respectively are equipped with two, control structure (4) set up towards the both ends of pen container (1) respectively and link to each other with corresponding point cover (3), wherein, control structure (4) include two button (61) and two vice elastic component (601), and two button (61) set up relatively, and two vice elastic component (601) interval setting, and the both ends of vice elastic component (601) butt respectively in two button (61).

4. A pen according to claim 3, characterized in that the control element (6) comprises a key (61), a control hook (62) and a limit hook (63);

the keys (61) are inserted into the pen container (1) and connected with the pen container (1) through the auxiliary elastic piece (601), correspondingly, the pen container (1) is provided with operation holes (101) which are matched with the keys (61), and the keys (61) can reciprocate along the operation holes (101);

one end of the control hook (62) is fixedly connected with the key (61), and the other end of the control hook (62) is provided with a hook body (602); correspondingly, one end of the limiting hook (63) is fixedly connected with the tip sleeve (3), and the other end of the limiting hook (63) faces the control hook (62) and is provided with a limiting groove (603) which is matched with the hook body (602).

5. Pen according to claim 4, characterized in that when the construction is a double-ended pen, the keys (61) are provided in two and the barrel (1) is provided with two coaxial operating holes (101) so that the two keys (61) are arranged opposite and connected by a secondary elastic member (601).

6. The pen according to claim 4, characterized in that the limit groove (603) comprises a first groove body (604) and a second groove body (605), the first groove body (604) being remote from the control hook (62) and having a first abutment surface (606) adapted to the hook body (602), the second groove body (605) being adjacent to the control hook (62) and having a second abutment surface (607) adapted to the hook body (602), the end of the second abutment surface (607) being configured as a unhooking circular arc surface (608), and correspondingly, the end of the hook body (602) being provided with a secondary circular arc surface (613) adapted to the unhooking circular arc surface (608);

correspondingly, a limiting block (609) is arranged between the first groove body (604) and the second groove body (605), the limiting block (609) is provided with two opposite outer surfaces, the outer surface facing the first groove body (604) is configured as a first abutting surface (606), the outer surface facing the second groove body (605) is configured as a sliding inclined surface, the sliding inclined surface gradually inclines downwards from the first groove body (604) to the second groove body (605), and the height of the limiting block (609) is lower than that of the second abutting surface (607).

7. Pen according to claim 4, characterized in that the end of the limit hook (63) adjacent to the control hook (62) has two opposite sides, one of which is provided with said limit groove (603) and the other is configured as a unhooking ramp (610) inclined towards the limit groove (603), and correspondingly the barrel (1) is provided with an internal recess (102) adapted to the unhooking ramp (610).

8. Pen according to claim 4, characterized in that the tip cover (3) is open at both ends, one end of which is connected to the pen container (1) by means of the sliding guide cylinder (301), the other end is gradually convergent and forms an opening adapted to the pen core (2), correspondingly the outer circumferential surface of the tip cover (3) is configured to be adapted to the gripping surface of the human body;

the sliding guide cylinder (301) is of a cylindrical structure with two open ends, a guide groove (302) extending to the tip sleeve (3) is formed in the inner periphery of the sliding guide cylinder (301), and correspondingly, the limiting hooks (63) are arranged on the guide groove (302) in a penetrating mode and connected to the sliding guide cylinder (301); one end of the sliding guide cylinder (301) adjacent to the pen container (1) is provided with a notch (303) for installing the pen core (2).

9. Pen according to claim 8, characterized in that the sliding guide cylinder (301) is sleeved with an elastic ring (304), the elastic ring (304) being located at the junction of the nib (3) and the sliding guide cylinder (301).

10. A pen according to claim 4, characterized in that when the pen core (2) and the nib (3) are provided one each, the barrel (1) is open at one end and closed at the other end, the stopper (7) being configured as a closed end of the barrel (1);

or when two pen cores (2) and two tip sleeves (3) are respectively arranged, two ends of the pen container (1) are open, and the limiting piece (7) is structured as a stop lever fixed on the pen container (1).