Double-drive core-ejection structure and pen

Abstract

The utility model discloses a double -drive core structure and pen relates to stationery field. It includes driving piece, linkage piece and press down piece group: driving piece is equipped with first connecting structure and first linkage structure, is rotatively connected with pen holder through first connecting structure, and rotates around own axis relative to pen holder, linkage piece is arranged in the side of driving piece to the core, is equipped with second connecting structure and second linkage structure, is slidably connected with pen holder through second connecting structure, and first and second linkage structure cooperate, and driving piece rotates and drives linkage piece to be close to or away from driving piece, press down piece group can realize core core through pressing. The utility model discloses through reasonable structure design, has excellent core compatibility and reliable transmission function, and driving piece rotation can flexibly adjust linkage piece stroke, realizes the double -drive core combination form of rotation core and press -down core, and improves user core selection range and product use flexibility.

Description

Technical Field

[0001] This utility model relates to the field of stationery, specifically to a dual-drive core-feeding structure and a pen. Background Technology

[0002] In the field of writing instruments, push-button pens are widely used in various scenarios such as daily writing, office note-taking, and student study due to their advantages such as ease of use and effective protection of the pen tip from damage when carried. Currently, most push-button pens on the market work by pressing the trigger mechanism of the pen cap or end, which drives the transmission component inside the pen barrel to move, thereby realizing the extension and retraction of the pen tip to meet the needs of switching between writing and storage.

[0003] However, existing push-button pens have gradually revealed some significant technical flaws in practical applications, mainly concerning refill compatibility and the functionality of the transmission structure. On one hand, poor refill length compatibility is a common problem. Most current push-button pens have fixed-size internal transmission structures, only compatible with refills of specific lengths. When users need to replace refills with different brands or models, if the new refill length differs from the original, it can lead to anything from the refill not being able to install properly to, in severe cases, the refill being too long and damaging the internal structure, or too short and failing to eject effectively. This severely limits the user's choice of refills and reduces the product's flexibility.

[0004] On the other hand, the transmission structure has a single function and cannot simultaneously meet the dual requirements of refill adaptation and refill control. In the existing technology, to achieve adaptation to refills of different lengths, it is often necessary to set up additional independent adjustment components, such as adjustment screws and shims, which require users to operate manually with tools; and the transmission structure used to realize refill delivery and retraction can usually only complete the fixed stroke movement of the refill, and cannot make adaptive adjustments according to the difference in refill length. This results in a complex internal structure of the entire push-button pen, an increased number of parts, which not only increases the manufacturing cost, but also increases the assembly difficulty and failure rate.

[0005] In addition, some push-button pens use multiple independent transmission mechanisms to accommodate both refill compatibility and refill ejection. This significantly reduces the utilization of the internal space of the pen barrel, which not only limits the lightweight and miniaturized design of the pen barrel, but may also cause problems such as refill jamming and incomplete refill retraction due to coordination errors between multiple mechanisms, affecting the user's writing experience. Utility Model Content

[0006] To address one of the shortcomings of existing technologies, this utility model provides a dual-drive lead-out structure and pen, solving the problem of lead adaptation and drive within the pen barrel of a push-button pen.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dual-drive core-ejection structure, comprising: The active component is provided with a first connecting structure and a first linkage structure; the active component can be rotatably connected to the pen barrel through the first connecting structure, and the active component can rotate relative to the pen barrel, with the reference axis of rotation of the two being the axis of the active component itself. A linkage component is disposed on the side of the active component facing the pen tip. The linkage component is provided with a second connecting structure and a second linkage structure. The linkage component can be slidably connected to the pen barrel through the second connecting structure. The first linkage structure and the second linkage structure are mutually cooperating structures. When the active component rotates, the active component can move the linkage component closer to or away from the active component through the first linkage structure and the second linkage structure. The actuating assembly is linked to the linkage and the pen refill respectively. The actuating assembly can transmit external pressing force to the pen refill, thereby causing the pen refill to move within the pen barrel.

[0008] Preferably, it also includes: A retaining element is disposed between the linkage element and the pen barrel; the retaining element is an elastic element, and the retaining element can apply a force to the linkage element to slide in the direction of the driving element.

[0009] Preferably, the actuating element assembly includes: A driven member is disposed between the linkage member and the pen refill; the linkage member drives the pen refill to move through the driven member; The pressing transmission component is located on the side of the driven component away from the pen refill. The pressing transmission component is slidably connected to the driving component or the linkage component, and the pressing transmission component is linked to the driven component.

[0010] Preferably, the driven member is sleeved inside the linkage member, and a guide structure is provided between the driven member and the linkage member to guide the displacement of the driven member.

[0011] Preferably, the active component is a cylindrical structure; the first connecting structure and the first linkage structure are respectively disposed on the inner wall or the outer wall of the active component; The active component also includes: A screwing structure is provided on the outer wall of the active component. The screwing structure is used as an anti-slip structure when the user screws it.

[0012] Preferably, the first connecting structure is disposed on the outer wall of the active member, and the first connecting structure is a ring-shaped block or groove. The linkage component is slidably connected to the inner wall of the pen barrel through a second connecting structure, which is a slider or groove provided on the outer wall of the linkage component.

[0013] Preferably, the first linkage structure and the second linkage structure include a combination of mutually cooperating positioning blocks and positioning slots; When the first linkage structure is a positioning block, the second linkage structure is the corresponding positioning groove; When the first linkage structure is a positioning groove, the second linkage structure is a corresponding positioning block.

[0014] Preferably, at least one positioning block is provided, and one end of the positioning block extends toward the positioning groove assembly; The positioning groove assembly includes: At least one lead outlet groove is provided, with the concave direction of the lead outlet groove as the bottom direction and the opening direction of the lead outlet groove as the top direction; when the end of the positioning block abuts against the bottom of the lead outlet groove, the pen tip retracts into the pen barrel; when the end of the positioning block abuts against the top of the lead outlet groove, the pen tip extends out of the pen barrel.

[0015] Preferably, the positioning groove assembly further includes: A core-exit limiting groove is provided at the top of the core-exit groove, and the end of the positioning block can be inserted into the core-exit limiting groove.

[0016] Preferably, the positioning groove assembly further includes: The adjustment groove group includes several adjacent adjustment grooves, with one end of the groove opening facing towards the positioning block and the other end of the groove bottom facing away from the positioning block; the distance between the bottom of adjacent adjustment grooves and the end of the positioning block is not equal.

[0017] Preferably, the adjusting groove group is respectively located at the bottom and top of the core outlet groove.

[0018] Preferably, the positioning block is a long strip-shaped block, with the end of the positioning block facing the positioning groove assembly as end A of the positioning block and the end away from the positioning groove assembly as end B of the positioning block; The adjustment groove group has the longest distance between the bottom of the adjustment groove in the middle and the end of the positioning block B; the adjustment grooves on the sides are symmetrically distributed on both sides according to the structure in which the distance between the bottom of the groove and the end of the positioning block B decreases one by one.

[0019] Preferably, the end of the positioning block facing the positioning groove assembly has a ridge-shaped structure with a gradually decreasing width, and the end of the positioning block with a smaller width has an arc structure. The bottom and top of the adjusting groove and the core outlet groove in the positioning groove assembly are all arc-shaped structures.

[0020] A pen that uses the aforementioned dual-drive lead-out structure.

[0021] Compared with existing technologies, this dual-drive lead ejection structure offers the following advantages: Through its rational structural design, it possesses excellent lead compatibility and reliable transmission capabilities. Specifically, the driving component can rotate relative to the pen barrel around its own axis, while the linkage component slides with the pen barrel via a second connecting structure. Furthermore, the first linkage structure of the driving component and the second linkage structure of the linkage component work together, allowing the driving component to move closer to or away from the driving component when it rotates, thereby driving the lead movement through the driven component. Based on this structure, and in conjunction with the pressing component assembly, a dual-drive lead ejection combination of rotation and pressing is achieved, enriching the lead ejection action and enhancing the user experience.

[0022] This component integrates pen lead adaptation adjustment and lead ejection control functions, simplifying the internal structure of the press-type pen, reducing the number of parts, which in turn reduces manufacturing costs and assembly difficulty, and also reduces the failure rate.

[0023] Meanwhile, this structural design allows the movement stroke of the linkage to be flexibly adjusted by the rotation of the driving component, thus adapting to pen refills of different lengths without the need for additional independent adjustment components, effectively improving the user's choice of pen refills and the flexibility of product use.

[0024] In addition, the integrated structural design improves the utilization of the internal space of the pen barrel, providing favorable conditions for the lightweight and miniaturized design of the push-button pen. Furthermore, the stable cooperation of each component can effectively avoid problems such as the pen tip getting stuck or the tip not retracting completely, thus ensuring the user's writing experience. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a front view of the overall structure of an embodiment of this application; Figure 3 for Figure 2 AA cross-section view; Figure 4 This is a schematic diagram of the structure of Embodiment 1 of this application; Figure 5 This is a diagram of the active component wiring harness according to one embodiment of this application; Figure 6 This is a structural diagram of Embodiment 2 of this application. Figure 1 ; Figure 7 This is a structural diagram of Embodiment 2 of this application. Figure 2 ; Figure 8 This is a diagram of the active component wiring harness for Embodiment 2 of this application; Figure 9 This is a schematic diagram of the active component structure according to an embodiment of this application; Figure 10 This is a front view of the active component in an embodiment of this application; Figure 11 for Figure 10 AA cross-section view; Figure 12 This is a schematic diagram of the linkage structure according to an embodiment of this application; Figure 13 This is a front view of the linkage component in an embodiment of this application; Figure 14 for Figure 13 AA cross-section view; Figure 15 This is a schematic diagram of the combined state of the linkage and driven components in an embodiment of this application. Figure 1 ; Figure 16 This is a schematic diagram of the combined state of the linkage and driven components in an embodiment of this application. Figure 2 ; Figure 17 This is an exploded view of the combined state of the linkage and driven components in an embodiment of this application; Figure 18 This is a schematic diagram of the overall structure of the pen according to an embodiment of this application.

[0026] In the picture: 1. Driving component; 11. First connecting structure; 12. First linkage structure; 121. Positioning block; 13. Operating unit; 2. Linkage component; 21. Second connection structure; 22. Second linkage structure; 221. Adjustment groove group; 222. Core outlet groove; 223. Core outlet limiting groove; 3. Pressing component assembly; 31. Driven component; 32. Pressing transmission component; 3. Driven component; 4. Maintaining components. Detailed Implementation

[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Please see Figures 1-17 This application provides the following technical solutions: A dual-drive lead-out structure includes an active component 1, a linkage component 2, and a push-button assembly 3. The active component 1 is provided with a first connecting structure 11 and a first linkage structure 12; the linkage component 2 is located on the side of the active component 1 facing the lead, and the linkage component 2 is provided with a second connecting structure 21 and a second linkage structure 22. The push-button assembly 3 is linked with both the linkage component and the lead, and can transmit external pressing force to the lead, thereby causing the lead to move within the pen barrel.

[0029] The active component 1 serves as the operating part for the user to adjust the position of the pen refill, while the linkage component 2 acts as an intermediate transmission structure. The operation of the active component 1 causes the position of the linkage component 2 to change. The linkage component 2 then drives the push-button assembly 3 to change its position, transmitting the displacement of the linkage component 2 to the pen refill through the push-button assembly 3, thereby causing the pen refill to move within the pen barrel.

[0030] In this design, the active component 1 is rotatably connected to the pen barrel via the first connecting structure 11. The active component 1 can rotate relative to the pen barrel, with the reference axis of rotation being the axis of the active component 1 itself. The end of the pen barrel reserved for pen tip extension is considered the front end, and the other end is considered the tail end. For ease of use and overall aesthetics, the active component 1 is preferably located at the tail end of the pen barrel. However, this is not a limiting factor; its position can be changed according to actual needs, as long as it facilitates operation and allows for rotatable connection with the pen barrel.

[0031] Unlike the active component 1, the second connecting structure 21 of the linkage component 2 adopts a sliding connection, and the linkage component 2 is slidably connected to the pen barrel through the second connecting structure 21. In this design, the linkage component 2 is preferably placed inside the pen barrel, so as not to affect the overall structural style of the pen barrel. However, the linkage component 2 can also be placed on the outside of the pen barrel, which also only needs to satisfy the requirement of sliding connection rather than rotational connection with the pen barrel. The specific structure will be further detailed later. The first linkage structure 12 and the second linkage structure 22 are mutually cooperating structures. When the active component 1 rotates, the active component 1 can use the first linkage structure 12 and the second linkage structure 22 to move the linkage component 2 closer to or further away from the active component 1. Through this arrangement, the active component 1 can push or pull the linkage component 2 away when rotating, thereby causing the pen tip to extend outside the pen barrel or retract inside the pen barrel. The active component 1 and the linkage component 2 are used to complete the pen's rotational lead ejection function. The push-button assembly 3 is used to realize the pen's press-to-eject lead ejection function. The actuating component 3 only needs to be able to connect to the end of the pen refill and transmit the user's finger pressure to the pen refill so that it can move along with the pen refill. The specific structure of the actuating component 3 will be described in more detail later.

[0032] Based on the above implementation scheme, the active component 1 is a cylindrical structure as a whole; the first connecting structure 11 and the first linkage structure 12 are respectively disposed on the inner wall or the outer wall of the active component 1.

[0033] The first connecting structure 11 is disposed on the outer wall of the active component 1. The first connecting structure 11 is a ring-shaped block or groove, and the pen barrel can be adapted to have a corresponding connecting structure. The attached drawings of this solution show the form in which the first connecting structure 11 is disposed on the outer wall of the active component 1. The first connecting structure 11 is a convex block, and through grooves are formed on both sides of the block of the first connecting structure 11. A screwing structure 13 is provided on one side of the first connecting structure 11. The screwing structure 13 is an anti-slip structure disposed on the outer wall of the active component 1 to facilitate the user's application of force when screwing.

[0034] During installation, the screw-on structure 13 is located outside the pen barrel's tail end, while the first connecting structure 11 is fitted inside the pen barrel's tail end. A circular connecting groove can be made on the inner wall of the pen barrel's tail end, allowing for snap-fit ​​and rotational connection through the block of the first connecting structure 11 and the connecting groove inside the pen barrel. The through grooves on both sides of the block of the first connecting structure 11 give it a certain degree of toughness and elastic deformation capability, facilitating installation and use.

[0035] The outer wall of the screw-on structure 13 is approximately truncated cone-shaped, and the circumferentially distributed convex strips facilitate the gripping and application of force by the fingers.

[0036] Based on the above implementation scheme, the linkage 2 is slidably connected to the inner wall of the pen barrel through the second connecting structure 21. The second connecting structure 21 is a slider or groove provided on the outer wall of the linkage 2. Similarly, the inner wall of the pen barrel can be adapted to be provided with a matching sliding structure.

[0037] The linkage 2 shown in the attached diagram of this solution adopts a structure set inside the pen barrel. A long, narrow groove is formed on the outer wall of the linkage 2 as a second connecting structure 21. The extension direction of the groove is parallel to the lead-out direction of the pen refill, and a flared structure is provided at the end of the groove away from the driving component 1. A corresponding slider that can limit and slide within the pen barrel is provided.

[0038] Based on the above implementation scheme, the connection form between the active component 1, the linkage component 2, and the pen barrel was described earlier. The first linkage structure 12 and the second linkage structure 22 of the active component 1 and the linkage component 2 are mutually cooperating structures. Through their cooperation, the active component 1 rotates, causing the linkage component 2 to slide inside the pen barrel. In this scheme, the first linkage structure 12 and the second linkage structure 22 are implemented by a combination of mutually cooperating positioning blocks 121 and positioning grooves. That is, the positioning blocks are combined with multiple groove structures to form a positioning groove combination. By using the positioning blocks to abut in grooves of different depths, the overall length of the active component 1 and the linkage component 2 can be adjusted.

[0039] Considering that this design requires the active component 1 and the linkage component 2 to remain in a resisting state, this solution also includes a retaining component 4, which is a spring positioned between the linkage component 2 and the pen barrel. One end of the retaining component 4 abuts against the end of the linkage component 2 away from the active component 1, and the other end abuts against a limiting structure provided on the inner wall of the pen barrel. The retaining component 4 applies a force to the linkage component 2, causing it to slide towards the active component 1.

[0040] For the structural forms of the first linkage structure 12 and the second linkage structure 22, two methods can be adopted. One method is that the first linkage structure 12 on the driving component 1 is a positioning block 121, and the second linkage structure 22 of the linkage component 2 is a corresponding combination of positioning slots, such as... Figures 4 to 6 As shown. In the second method, the first linkage structure 12 of the active component 1 is a positioning groove combination, and the second linkage structure 22 is the corresponding positioning block 121.

[0041] The two structural forms do not affect the user's operation, and the operation is the same, which is to simply turn the active component 1.

[0042] Based on the above implementation plan, we will first explain method one, namely... Figures 4 to 6 In the structural form shown, the first link 12 of the active component 1 is a positioning block 121. The positioning block 121 is disposed on the inner wall of the active component 1 and is a long strip-shaped block that protrudes towards the inner side of the active component 1. The end of the positioning block 121 facing the linkage component 2 has a ridge-shaped structure with a gradually decreasing width, and the end of the positioning block 121 facing the linkage component 2 is an arc end. Because the active component 1 is easy to operate by hand when rotated as a writing instrument, only one positioning block 121 is needed, and there is no need to set multiple ones.

[0043] The second linkage structure 22 of the linkage component 2 is a positioning groove assembly. It is called a positioning groove assembly because this solution uses two different groove structures to achieve two displacement amplitudes: short-distance adjustment and long-distance adjustment. The short-distance adjustment is referred to as short adjustment and is used to adapt to pen refills of different lengths. The long-distance adjustment is referred to as long adjustment and is used for pen refill ejection.

[0044] Based on two functions, the positioning groove assembly in this scheme is divided into an adjustment groove group 221 for short-term adjustment and a core-output groove 222 for long-term adjustment. The adjustment groove group 221 will be described in detail later. The adjustment groove group 221... Figures 4 to 8 This is not reflected in the text.

[0045] The linkage component 2 itself is also a cylindrical body. Its end facing the driving component 1 is fitted inside the driving component 1. A cylindrical plate is provided on the outside of this part fitted inside the driving component 1. The cylindrical plate and the inner cylinder can be integrally formed or bonded together. A core outlet groove 222 is provided on this outer cylindrical plate. The core outlet groove 222 is actually a large groove, see [reference needed]. Figure 4 and Figure 5 The diagrams show the states of both sides of the linkage 2. For ease of explanation, the concave direction of the core outlet groove 222 is taken as the bottom direction, and the opening direction of the core outlet groove is taken as the top direction. Figure 4 The image shows the top position of the core outlet groove 222. Figure 5 The bottom position of the core outlet groove 222 is shown.

[0046] When the positioning block 121 is at the bottom of the lead outlet groove 222, the overall length of the linkage 2 and the driving element 1 is relatively short, and the tip of the pen retracts into the pen barrel. It should be noted that the retraction force of the pen retracts also requires a spring; this spring-assisted retraction structure is a common feature in push-button pens and will not be elaborated upon here. When the positioning block 121 is at the top of the lead outlet groove 222, the driving element 1 pushes the linkage 2 further away, allowing the pen tip to extend beyond the pen barrel for writing.

[0047] Based on the above implementation plan, see also Figure 7 and Figure 8 In Method Two, the positioning block 121 is set on the outer wall of the linkage 2, while the core outlet groove 222 is set on the inner wall of the driving member 1. It is also a cylindrical plate that is fitted inside the inner wall of the driving member 1. The core outlet groove 222 is formed on this cylindrical plate.

[0048] The working principle of this structure is similar to that of the first method, except that the object being rotated changes. The active component 1 drives the core groove 222 structure to rotate, while the linkage component with the positioning block 121 remains to slide without rotating.

[0049] Both method one and method two can achieve the effect of rotating the active component 1 to extend the pen tip out of the pen barrel. The appropriate method can be selected based on the actual processing conditions.

[0050] Based on the above implementation scheme, in order to ensure that the positioning block 121 can stay stably at the top of the lead outlet groove 222, this scheme provides a lead outlet limiting groove 223 at the top of the lead outlet groove 222. The lead outlet limiting groove 223 is a small arc-shaped notch, which is sufficient to allow the positioning block 121 to be inserted into it, thereby ensuring the stability of the pen lead in the lead outlet state.

[0051] Based on the above implementation scheme, the actuating component group (3) includes a driven component 31 and a pressing transmission component 32. The driven component 31 is disposed between the linkage component and the pen refill; the linkage component 2 drives the pen refill to move through the driven component 31. The pressing transmission component 32 is disposed on the side of the driven component away from the pen refill, and the pressing transmission component 32 is slidably connected to the driving component 1 or the linkage component 2, and the pressing transmission component 32 is linked with the driven component 31. In this scheme, both the driven component 31 and the pressing transmission component 32 are sleeved inside the linkage component 2, and the end of the pressing transmission component 32 extends to the side of the driving component 1 away from the linkage component 2, and can be sleeved with the pen tail end piece for pressing.

[0052] A guide structure is provided between the driven member 31 and the linkage member 2 to guide the displacement of the driven member. For the structure of the driven member 3, see [link to documentation]. Figure 17 and Figure 14 ,pass Figure 17 The structure of the follower 31 and the pressing transmission member 32 can be seen. Figure 14 The internal structure of the linkage 2 can then be seen. The inner wall structure of the driven member 31, the pressing transmission member 32, and the linkage 2 adopts the linkage groove structure of the existing pressing pen. Several sliders are provided on the outer wall of the driven member 31, and the ends of the sliders are inclined structures. On the inner wall of the linkage 2, several guide grooves of different lengths are provided corresponding to the sliders of the driven member 31. Several toothed structures are provided on the end of the pressing transmission member 32 facing the driven member 31, which can push the driven member 31 to slide. Both the driven member 31 and the pressing transmission member 32 are sleeved inside the linkage 2. With this structure, in addition to the aforementioned rotation of the driving member 31 to realize the pen refill ejection, the pressing of the driven member 32 by the pressing transmission member 32 can also realize the pen refill ejection action. This achieves the effect of two different driving methods to drive the pen refill ejection and retraction.

[0053] In addition, it should be noted that both the aforementioned method one and method two are applicable to the structural unit of the push-button assembly 3.

[0054] Based on the above implementation plan, see Figures 9 to 17 This solution, in addition to considering different lead ejection methods, also considers adapting to lead lengths. This requirement can be achieved through the aforementioned short adjustment between the active component 1 and the linkage component 2. By rotating the active component 1, the positioning block 121 and the adjustment groove assembly 221 cooperate to adjust the overall length of the combined structure of the active component 1 and the linkage component 2. With the pen barrel length remaining constant, the linkage action between the active component 1 and the linkage component 2 changes the overall length of the adjustment assembly, thereby adapting to lead lengths of different sizes.

[0055] The adjustment groove group 221 consists of several adjacent adjustment grooves. One end of the groove opening faces the direction of the driving member 1, and the other end of the groove bottom faces the direction from which the pen refill exits. The distance between the bottom of adjacent adjustment grooves and the end of the positioning block 121 is unequal. For example... Figures 12 to 17 As shown, the adjustment grooves of the adjustment groove assembly 221 are arranged around the linkage member 2. Taking the aforementioned scheme as an example, the adjustment groove assembly 221 is arranged on the cylindrical plate outside the linkage member 2. For ease of explanation, the end of the positioning block 121 facing the positioning groove assembly is designated as end A of the positioning block 121, and the end away from the positioning groove assembly is designated as end B of the positioning block 121. The distance between the bottom of the adjustment groove in the middle of the adjustment groove assembly 221 and end B of the positioning block 121 is the longest; the adjustment grooves on the sides are symmetrically distributed on both sides according to the structure in which the distance between their bottoms and end B of the positioning blocks 121 decreases one by one. In other words, when the positioning block 121 is inserted into the middle adjustment groove of the adjustment groove assembly 221, the total length of the driving member 1 and the linkage member 2 is the shortest. When the driving member 1 rotates by an angle and the positioning block 121 enters an adjacent adjustment groove, the total length of the driving member 1 and the linkage member 2 becomes slightly longer. This design uses a total of three adjustment slots. The middle adjustment slot is used for longer pen refills, while the two side adjustment slots are symmetrically arranged and used for relatively shorter pen refills.

[0056] This structural form can also be set up in the same way for method two.

[0057] Based on the above implementation scheme, an adjustment groove group 221 is respectively provided at the bottom and top of the lead outlet groove 222. With the lead outlet groove 222 enabling the extension and retraction of the pen lead, combined with the adjustment groove groups 221 at the top and bottom of the lead outlet groove 222, the rotating active component 1 can be rotated to achieve both lead extension and adjustment for pen leads of different lengths.

[0058] In addition, in order to facilitate the movement of the linkage 2 when the active component 1 rotates, the bottom and top of the adjustment groove and the core outlet groove 222 in the positioning groove assembly are all set as arc-shaped structures.

[0059] Based on the above implementation plan, the various structures described in this solution can be installed on the pen barrel as needed, such as... Figure 18 As shown, the pen barrel only needs to be equipped with the aforementioned corresponding connection structure.

[0060] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0061] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0062] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0063] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0064] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0065] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A dual-drive core-ejection structure, characterized in that, include: The active component is provided with a first connection structure and a first linkage structure; The active component can be rotatably connected to the pen barrel through the first connecting structure. The active component can rotate relative to the pen barrel, and the reference axis of rotation between the two is the axis of the active component itself. A linkage component is disposed on the side of the active component facing the pen tip. The linkage component is provided with a second connecting structure and a second linkage structure. The linkage component can be slidably connected to the pen barrel through the second connecting structure. The first linkage structure and the second linkage structure are mutually cooperating structures. When the active component rotates, the active component can move the linkage component closer to or away from the active component through the first linkage structure and the second linkage structure. The actuating assembly is linked to the linkage and the pen refill respectively. The actuating assembly can transmit external pressing force to the pen refill, thereby causing the pen refill to move within the pen barrel.

2. The dual-drive core-ejection structure as described in claim 1, characterized in that, Also includes: A retaining element is disposed between the linkage element and the pen barrel; the retaining element is an elastic element, and the retaining element can apply a force to the linkage element to slide in the direction of the driving element.

3. The dual-drive core-ejection structure as described in claim 1, characterized in that, The actuating component assembly includes: A driven member is disposed between the linkage member and the pen refill; the linkage member drives the pen refill to move through the driven member; The pressing transmission component is located on the side of the driven component away from the pen refill. The pressing transmission component is slidably connected to the driving component or the linkage component, and the pressing transmission component is linked to the driven component.

4. The dual-drive core-ejection structure as described in claim 3, characterized in that, The driven component is sleeved inside the linkage component, and a guide structure is provided between the driven component and the linkage component to guide the displacement of the driven component.

5. The dual-drive core-ejection structure as described in claim 1, characterized in that, The active component is a cylindrical structure; the first connecting structure and the first linkage structure are respectively disposed on the inner wall or the outer wall of the active component; The active component also includes: A screwing structure is provided on the outer wall of the active component. The screwing structure is used as an anti-slip structure when the user screws it.

6. The dual-drive core-ejection structure as described in claim 1, characterized in that, The first connecting structure is disposed on the outer wall of the active component, and the first connecting structure is a ring-shaped block or groove; The linkage component is slidably connected to the inner wall of the pen barrel through a second connecting structure, which is a slider or groove provided on the outer wall of the linkage component.

7. The dual-drive core-ejection structure as described in claim 1, characterized in that, The first linkage structure and the second linkage structure include a combination of positioning blocks and positioning slots that cooperate with each other; When the first linkage structure is a positioning block, the second linkage structure is the corresponding positioning groove; When the first linkage structure is a positioning groove, the second linkage structure is a corresponding positioning block.

8. The dual-drive core-ejection structure as described in claim 7, characterized in that, At least one positioning block shall be provided, with one end of the positioning block extending toward the positioning groove assembly; The positioning groove assembly includes: At least one lead outlet groove is provided, with the concave direction of the lead outlet groove as the bottom direction and the opening direction of the lead outlet groove as the top direction; when the end of the positioning block abuts against the bottom of the lead outlet groove, the pen tip retracts into the pen barrel; when the end of the positioning block abuts against the top of the lead outlet groove, the pen tip extends out of the pen barrel.

9. The dual-drive core-ejection structure as described in claim 8, characterized in that, The positioning groove assembly also includes: A core-exit limiting groove is provided at the top of the core-exit groove, and the end of the positioning block can be inserted into the core-exit limiting groove.

10. The dual-drive core-ejection structure as described in claim 8, characterized in that, The positioning groove assembly also includes: The adjustment groove group includes several adjacent adjustment grooves, with one end of the groove opening facing towards the positioning block and the other end of the groove bottom facing away from the positioning block; the distance between the bottom of adjacent adjustment grooves and the end of the positioning block is not equal.

11. The dual-drive core-ejection structure as described in claim 10, characterized in that, The adjusting grooves are respectively located at the bottom and top of the core outlet groove.

12. The dual-drive core-ejection structure as described in claim 11, characterized in that, The positioning block is a long strip-shaped block, with the end of the positioning block facing the positioning groove assembly as end A and the end away from the positioning groove assembly as end B. The adjustment groove group has the longest distance between the bottom of the adjustment groove in the middle and the end of the positioning block B; the adjustment grooves on the sides are symmetrically distributed on both sides according to the structure in which the distance between the bottom of the groove and the end of the positioning block B decreases one by one.

13. The dual-drive core-ejection structure as described in claim 12, characterized in that, The end of the positioning block facing the positioning groove assembly has a ridge-shaped structure with a gradually decreasing width, and the end of the positioning block with a smaller width has an arc structure. The bottom and top of the adjusting groove and the core outlet groove in the positioning groove assembly are all arc-shaped structures.

14. A pen, characterized in that, The dual-drive core-ejection structure as described in any one of claims 1-13 is used.

Images