Rotary core-pen with retractable display

By designing a linkage structure between the pen refill support, rotating sleeve, and transmission rod in a rotating pen refill type pen, the window can be opened and closed and the display piece can be extended and retracted when the pen refill is extended and retracted. This solves the problem that movable parts cannot be internally linked in the existing technology, and enhances the fun and interactivity of the pen.

CN224928738UActive Publication Date: 2026-11-03WENZHOU AIHAO PEN TRADE CO LTD
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Patent Information

Application Number
CN202522411865.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-13
Publication Date
2026-11-03
Estimated Expiration
2035-11-13

AI Technical Summary

Technical Problem

Existing rotating refill pens cannot house movable parts inside the pen barrel and achieve the linkage of window opening and closing during the refill extension and retraction, thus lacking internal display effects.

Method used

Design a rotating refill pen with a pop-out display. Through the linkage structure of the refill support, rotating sleeve, transmission rod and display, the window opens and closes and the display extends and retracts when the refill extends and retracts. The stability and linkage of the action are ensured by the cooperation of the guide slope and the spring.

Benefits of technology

The pen barrel incorporates a retractable refill mechanism that links with the display components, enhancing the pen's appeal and interactivity. Its compact structure prevents component interference and improves the stability and reliability of the transmission process.

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Abstract

The utility model discloses a kind of rotating core formula pen utensils with ejectable display piece, including pen barrel, pen core, spring and pen core support, spring is located between pen core front end and pen barrel, pen core support and pen core rear end support cooperation.Pen barrel includes front rod section, rear rod section and link section, link section is fixedly cooperated with front rod section, and rotatably connected with rear rod section, pen core support and link section can axially relatively move and circumferentially limit.Pen core support side is equipped with limit block, rear rod section inner wall is equipped with with its cooperation guide slope.Rear rod section side is equipped with window, it is equipped with rotatable rotating sleeve that can be driven by pen core support, rotating sleeve side is equipped with with window cooperation opening, inside is equipped with transmission rod and along window telescopic display piece by pen core support drive along pen axis direction movement, display piece and transmission rod transmission cooperation.The utility model can be linked to open window and make display piece extend when pen core is rotated out, display piece is retracted simultaneously and window is closed when pen core is retracted back, to increase pen utensils interesting.
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Description

Technical Field

[0001] This utility model relates to a rotating core-ejecting pen with a pop-out display component. Background Technology

[0002] Existing rotary pen refill devices typically include a front pen barrel and a rear pen barrel that can rotate relative to each other. When the user rotates the pen barrel, the internal transmission component drives the pen refill to extend or retract along the pen barrel axis, thereby achieving refill extension and retraction control.

[0003] Currently, some pen manufacturers incorporate dolls, ornaments, or other movable parts into the pen barrel to enhance the fun and playability of their pens. These movable parts are typically controlled by independent structures, while some pens further incorporate a linkage mechanism with the pen refill's movement, allowing the movable parts to move synchronously during the refill's extension and retraction, thus further enhancing the pen's interactivity and visual appeal. This type of design not only increases the product's fun factor but can also, to some extent, indicate the refill's extension status.

[0004] However, the movable parts of the existing linkage pens mentioned above are usually located on the outside or at the end of the pen barrel, and can only achieve simple swinging and rotating actions.

[0005] Currently, there is no pen on the market that can house movable parts inside the pen barrel and control them by the extension and retraction of the pen refill. When the pen refill is extended, the window on the pen barrel opens and simultaneously drives the movable parts to extend from inside the pen barrel, or when the pen refill is retracted, the movable parts retract into the pen barrel and close the window, thus achieving a linkage effect between the extension and retraction of the pen refill and the display action. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a rotating pen with a pop-out display component. When the pen refill is extended, the window opens and the display component inside the pen extends out of the window for display. When the pen refill is retracted, the display component retracts out of the window and the window closes, thus increasing the pen's appeal.

[0007] This utility model relates to a rotating core-ejecting pen with a pop-out display component. It includes a pen barrel, a core, a spring, and a core support. The spring rests between the front end of the core and the pen barrel. The core support is engaged with the rear end of the core. The pen barrel includes a front section, a rear section, and a connecting section. The connecting section and the front section are fixedly engaged, while the connecting section and the rear section are rotatably connected. The connecting section and the front section can be integrally formed or are two separate but connected parts. The core support and the connecting section form a axially movable but circumferentially limited connection. When the front and rear rod sections rotate relative to each other, the front rod section can drive the pen refill support to rotate relative to the rear rod section through the connecting section. The pen refill support has a limit block on its side and a guide slope on the inner circumferential wall of the rear rod section. Under the indirect action of the spring, the limit block of the pen refill support is pressed against the guide slope. When the pen refill support rotates relative to the rear rod section, it can slide along the guide slope. Since the guide slope has an axial limiting effect on the pen refill support, the limit block can drive the pen refill support to move along the axis of the pen when it slides along the guide slope, thereby realizing the extension and retraction control of the pen refill.

[0008] The rear rod section has a window on its side, and a rotating sleeve that can be rotated by the pen refill support is provided inside the rear rod section. The rotating sleeve has an opening on its side that cooperates with the window to open and close. When controlling the extension and retraction of the pen refill, the opening of the rotating sleeve can be driven to rotate to a position that is aligned with the window, so that the window is opened. Alternatively, the opening of the rotating sleeve can be driven to rotate to a position that is offset from the window, so that the window is closed.

[0009] The rotating sleeve is also equipped with a transmission rod that moves along the axis of the pen driven by the pen refill support and a display component that moves telescopically along the window. The display component and the transmission rod form a transmission engagement. While driving the pen refill to move telescopically, the pen refill support will also drive the transmission rod to move along the axis of the pen. Through the transmission engagement between the transmission rod and the display component, the display component can be driven to move telescopically along the window.

[0010] Based on the above solution, it is possible to achieve the following: when the user rotates the pen barrel to extend or retract the pen tip, the window opens or closes simultaneously, and the display component inside the pen barrel extends out from the window to be displayed or retracts to be hidden. The pen tip extension and retraction, window opening and closing, and display component extension and retraction are coordinated within the limited space inside the pen barrel. The structure is compact and can enhance the fun and interactivity of the pen.

[0011] Furthermore, a support base is provided inside the rotating sleeve, the axis of the support base includes a vertical hole, and a horizontal hole communicating with the vertical hole is provided on the side of the support base. The transmission rod is slidably disposed in the vertical hole, and the display piece is slidably disposed in the horizontal hole.

[0012] In the above solution, by setting a support seat inside the rotating sleeve, and using the vertical and horizontal holes of the support seat to guide the transmission rod and the display component respectively, the sliding fit between the two is made more stable and smooth, improving the stability and reliability of the transmission process and preventing jamming.

[0013] Furthermore, the transmission rod is provided with a sliding groove, the sliding groove includes an inclined section, and the display component includes a slider that slides in conjunction with the sliding groove.

[0014] In the above scheme, the axial movement of the transmission rod along the pen can be converted into the lateral extension and retraction movement of the display piece by the guiding cooperation of the inclined section of the slider and the groove, so as to achieve a smooth and reliable linkage.

[0015] Furthermore, the display component includes a display end and a connecting end. The middle part of the connecting end includes a slot. The transmission rod is movably disposed in the slot. The slide groove passes through both sides of the transmission rod. The slider is disposed between the inner walls of both sides of the slot. The slider is inserted into the slide groove along both sides of the transmission rod.

[0016] In the above solution, by setting a slot at the connecting end of the display component and allowing the transmission rod to move and engage in the slot, the movement and engagement between the display component, the transmission rod, and the support base can be improved, making the movement of the components smoother and avoiding deviation or jamming. In addition, it can make the force between the display component and the transmission rod more even.

[0017] Furthermore, sliders are provided on both sides of the inner wall of the slot, and the sliders on both sides of the inner wall of the slot are spaced apart. Guide grooves for guiding the sliders into the slide are symmetrically provided on both sides of the transmission rod. The guide grooves include slopes that guide the sliders on both sides of the inner wall of the slot to move away from each other when inserted.

[0018] In the above solution, the elasticity of the connecting end of the display component is used to guide the sliders on both inner walls along the guide grooves and insert them into the slide grooves for installation, which facilitates the installation of the sliders. In other embodiments, a pin connecting the two inner walls can be used instead of the sliders of this invention.

[0019] Furthermore, the groove includes vertical sections connected to both ends of the inclined section, and the circumferential width of the opening is greater than the circumferential width of the window. In the above scheme, the vertical section creates an empty travel range for the display piece during the initial and final stages of the pen refill switching between the refill and lock states. At this time, the display piece will not be driven by the transmission rod to produce lateral movement, thereby effectively avoiding interference with the rotating sleeve. For example, it can prevent the display piece from extending outward before the window is opened, or prevent the window from closing before the display piece retracts into the pen barrel, thus preventing interference between the display piece and the rotating sleeve. The opening width of the rotating sleeve makes it less likely for the rotating sleeve to interfere with the display piece when rotating.

[0020] Furthermore, the front end of the rotating sleeve is provided with a sleeve portion, the rear end of the pen refill support is axially movably inserted into the sleeve portion, the side of the sleeve portion is provided with a first guide groove, the side of the pen refill support is provided with a protrusion that cooperates with the first guide groove for axial sliding and circumferential limiting, and the limiting block is provided on the protrusion and located on the outside of the sleeve portion.

[0021] In the above scheme, the connection structure between the rotating sleeve and the pen refill support is simple and compact, easy to assemble, and will not affect the sliding fit between the limiting block of the pen refill support and the guide slope of the rear rod section.

[0022] Furthermore, the inner peripheral wall of the connecting section is provided with a second guide groove that cooperates with the protrusion for axial sliding and circumferential limiting.

[0023] In the above scheme, the connection structure between the connecting section and the pen refill support is simple, compact, and easy to assemble.

[0024] Furthermore, the front end of the transmission rod is provided with a plug-in portion, and the rear end of the pen refill support includes a plug hole. The plug hole and the plug-in portion of the transmission rod form a plug-in fit that can rotate circumferentially but is axially limited.

[0025] In the above scheme, the connection structure between the transmission rod and the pen refill support is simple, compact, and easy to assemble. Attached Figure Description

[0026] Figure 1 This is a structural diagram of an embodiment of the present utility model; Figure 2 This is an exploded view of the structure of an embodiment of the present utility model; Figure 3 This is an exploded view of the internal structure of the rear rod segment in an embodiment of this utility model; Figure 4 This is a partial cross-sectional view of an embodiment of the present utility model; Figure 5 This is a cross-sectional view of the rear rod section according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the internal structure of the rear rod section according to an embodiment of the present utility model; Figure 7This is a schematic diagram showing the state changes of the pen refill support and display component according to an embodiment of the present utility model; Figure 8 This is a schematic diagram illustrating the state changes of the display component and the window in an embodiment of this utility model; Figure 9 This is a structural diagram of the demonstrator of an embodiment of the present utility model; Figure 10 This is a structural diagram of the rotating sleeve according to an embodiment of the present invention; Figure 11 This is a structural diagram of the transmission rod according to an embodiment of the present utility model; Figure 12 This is a structural diagram of the support base according to an embodiment of the present utility model; Figure 13 This is a structural diagram of the pen refill support component according to an embodiment of the present utility model. Detailed Implementation

[0027] In the directional terminology used in this utility model, "front" or "forward" indicates the direction of the pen tip, and "back" or "rear" indicates the direction of the pen tail.

[0028] This utility model includes an embodiment of a rotating core-ejecting pen with a pop-out display component, such as... Figures 1 to 13 As shown, the pen includes a pen barrel 1, a pen refill 2, a spring 3, and a pen refill support 4. The spring 3 is positioned between the front end of the pen refill 2 and the pen barrel 1, and the pen refill support 4 is engaged with the rear end of the pen refill 2.

[0029] The pen barrel 1 includes a front section 11, a rear section 12, and a connecting section 13. The connecting section 13 and the front section 11 form a threaded connection, and the connecting section 13 and the rear section 12 form a rotatable insertion and positioning connection. The rear end of the connecting section 13 is inserted into the front opening of the rear section 12. The two are axially limited by multiple sets of annular ribs and annular grooves, but the connecting section 13 can still rotate relative to the rear section 12. When the pen is held by hand and the front section 11 and the rear section 12 are rotated relative to each other, the connecting section 13 will also rotate relative to the rear section 12. In other embodiments, the connecting section 13 and the front section 11 can be integrally formed.

[0030] The pen refill support 4 and the connecting section 13 form a connection that allows axial relative movement but circumferential limitation. When the front rod section 11 and the rear rod section 12 are driven to rotate relative to each other, the front rod section 11 can drive the pen refill support 4 to rotate relative to the rear rod section 12 through the connecting section 13. A limit block 41 is provided on the side of the pen refill support 4, and a guide slope 120 is provided on the inner circumferential wall of the rear rod section 12. Under the indirect action of the spring 3, the limit block 41 of the pen refill support 4 is pressed against the guide slope 120. When the pen refill support 4 rotates relative to the rear rod section 12, it can slide along the guide slope 120. Since the guide slope 120 has an axial limiting effect on the pen refill support 4, the limit block 41 can drive the pen refill support 4 to move along the axis of the pen when sliding along the guide slope 120, thereby realizing the extension and retraction control of the pen refill 2.

[0031] The rear rod section 12 has a window 121 on its side, and a rotating sleeve 5 that can be rotated by the pen refill support 4 is provided inside the rear rod section 12. The rotating sleeve 5 has an opening 510 on its side that cooperates with the window 121 to open and close. When controlling the extension and retraction of the pen refill 2, the opening 510 of the rotating sleeve 5 can be driven to rotate to a position aligned with the window 121, so that the window 121 is open. Alternatively, the opening 510 can be driven to rotate to a position offset from the window 121, so that the window 121 is closed.

[0032] The rotating sleeve 5 contains a transmission rod 6 that moves along the axis of the pen, driven by the pen refill support 4, and a display piece 7 that extends and retracts along the window 121. The display piece 7 and the transmission rod 6 form a transmission connection. While driving the pen refill 2 to extend and retract, the pen refill support 4 also drives the transmission rod 6 to move along the axis of the pen. Through the transmission connection between the transmission rod 6 and the display piece 7, the display piece 7 can be driven to extend and retract along the window 121.

[0033] As the user rotates the pen barrel 1 to extend or retract the pen tip 2, the window 121 opens or closes in conjunction with this action. This also causes the display component 7 inside the pen barrel 1 to extend from the window 121 for display or retract for hiding. Within the limited space inside the pen barrel 1, the pen tip extension and retraction, window opening and closing, and display component extension and retraction are coordinated in a compact structure, which enhances the fun and interactivity of the pen.

[0034] A support base 8 is provided inside the rotating sleeve 5. The axis of the support base 8 includes a vertical hole 81, and a horizontal hole 82 communicating with the vertical hole 81 is provided on the side of the support base 8. The transmission rod 6 is slidably disposed in the vertical hole 81, and the display piece 7 is slidably disposed in the horizontal hole 82. The vertical hole 81 and the horizontal hole 82 of the support base 8 guide the transmission rod 6 and the display piece 7 respectively, making their sliding fit more stable and smooth, improving the stability and reliability of the transmission process, and preventing jamming.

[0035] The transmission rod 6 has a groove 61, which includes an inclined section 611. The display piece 7 includes a slider 71 that slides in conjunction with the groove 61. The guiding engagement between the slider 71 and the inclined section 611 of the groove 61 converts the axial movement of the transmission rod 6 along the pen into the lateral extension and retraction movement of the display piece 7, achieving a smooth and reliable linkage.

[0036] like Figure 9 As shown, the display component 7 includes a display end 72 and a connecting end 73. The display end 72 has a display surface with a pattern. The connecting end 73 includes a slot 731 in the middle, and the transmission rod 6 is movably disposed in the slot 731. A slide groove 61 passes through both sides of the transmission rod 6, and a slider 71 is disposed between the inner walls of both sides of the slot 731. The slider 71 is inserted into the slide groove 61 along both sides of the transmission rod 6. By providing a slot 731 at the connecting end 73 of the display component 7 and allowing the transmission rod 6 to movably engage in the slot 731, the movable engagement effect between the display component 7, the transmission rod 6, and the support base 8 can be improved, making the movement of the components smoother and more stable, avoiding deviation or jamming, and making the force between the display component 7 and the transmission rod 6 more even.

[0037] like Figure 11 As shown, sliders 71 are provided on both inner walls of the slot 731, and the sliders 71 on both inner walls of the slot 731 are spaced apart. Guide grooves 63 are symmetrically provided on both sides of the transmission rod 6 to guide the sliders 71 into the slide groove 61. The guide grooves 63 include slopes 631 that guide the sliders 71 on both inner walls of the slot 731 to move away from each other during insertion. Utilizing the elasticity of the connecting end 73 of the display piece 7, the sliders 71 on both inner walls are guided along the guide grooves 63 and inserted into the slide grooves 61 for installation, facilitating the installation of the sliders 71. In other embodiments, a pin connecting the two inner walls of the slot 731 can also be used instead of sliders 71.

[0038] like Figure 11 As shown, the slide 61 includes a vertical section 612 connected to both ends of the inclined section 611. The circumferential width of the opening 510 is greater than the circumferential width of the window 121. The vertical section 612 is designed so that the pen refill 2 forms an empty travel range for the display piece 7 during the beginning and end phases of switching between the refill and locking states. At this time, the display piece 7 will not be driven by the transmission rod 6 to produce lateral movement, thereby effectively avoiding interference with the rotating sleeve 5. For example, it can prevent the display piece 7 from extending outward before the window 121 is opened, or prevent the window 121 from closing before the display piece 7 is retracted into the pen barrel 1, thus preventing interference between the display piece 7 and the rotating sleeve 5. The width of the opening 510 of the rotating sleeve 5 is designed so that the rotating sleeve 5 is less likely to interfere with the display piece 7 when rotating.

[0039] like Figure 10As shown, the front end of the rotating sleeve 5 is provided with a sleeve portion 52, and the rear end of the pen refill support 4 is axially movably inserted into the sleeve portion 52. A first guide groove 521 is provided on the side of the sleeve portion 52, and a protrusion 42 is provided on the side of the pen refill support 4, which cooperates with the first guide groove 521 for axial sliding and circumferential limiting. A limiting block 41 is provided on the protrusion 42 and located outside the sleeve portion 52. The connection structure between the rotating sleeve 5 and the pen refill support 4 is simple and compact, easy to assemble, and does not affect the sliding fit between the limiting block 41 of the pen refill support 4 and the guide slope 120 of the rear rod section 12.

[0040] The inner circumferential wall of the connecting section 13 is provided with a second guide groove that cooperates with the protrusion 42 for axial sliding and circumferential limiting. The connection structure between the connecting section 13 and the pen refill support 4 is simple, compact, and easy to assemble.

[0041] The front end of the transmission rod 6 is provided with a plug-in portion 62, and the rear end of the pen refill support 4 includes a plug hole 43. The plug hole 43 and the plug-in portion 62 of the transmission rod 6 form a plug-in fit that allows circumferential relative rotation but axial limitation. The connection structure between the transmission rod 6 and the pen refill support 4 is simple, compact, and easy to assemble.

[0042] like Figure 7 and Figure 8 As shown, when the pen refill support 4 is driven to rotate by the connecting section 13, it will drive the rotating sleeve 5 to rotate, causing the window 121 to open. When the pen refill support 4 rotates, it moves forward axially through the sliding and limiting cooperation with the guide inclined surface 120, and drives the transmission rod 6 to move forward. The transmission rod 6 is linked to the display piece 7 to move laterally in the extension direction.

[0043] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.

Claims

1. A rotating core-ejecting pen with a pop-out display component, comprising a pen barrel, a core, a spring, and a core support member, wherein the spring is disposed between the front end of the core and the pen barrel, the core support member is in support of the rear end of the core, the pen barrel includes a front section, a rear section, and a connecting section, the connecting section and the front section forming a fixed fit, the connecting section and the rear section forming a rotatable connection fit, the core support member and the connecting section forming a connection fit that allows axial relative movement but is circumferentially limited, a limit block is provided on the side of the core support member, and a guide slope is provided on the inner circumferential wall of the rear section, the limit block and the guide slope cooperate to slide, characterized in that: The rear rod section has a window on its side, and a rotating sleeve that can be rotated by the pen refill support is provided inside the rear rod section. The rotating sleeve has an opening on its side that cooperates with the window to open and close. The rotating sleeve also has a transmission rod that is driven by the pen refill support to move along the axis of the pen and a display component that moves along the window. The display component and the transmission rod form a transmission cooperation.

2. The rotating core-ejecting pen with a pop-out display element according to claim 1, characterized in that: The rotating sleeve is provided with a support base, the axis of the support base includes a vertical hole, and the side of the support base is provided with a horizontal hole communicating with the vertical hole. The transmission rod is slidably disposed in the vertical hole, and the display piece is slidably disposed in the horizontal hole.

3. The rotating core-ejecting pen with a pop-out display element according to claim 2, characterized in that: The transmission rod has a sliding groove, the sliding groove includes an inclined section, and the display component includes a slider that slides in conjunction with the sliding groove.

4. The rotating core-ejecting pen with a pop-out display element according to claim 3, characterized in that: The display component includes a display end and a connecting end. The middle part of the connecting end includes a slot. The transmission rod is movably disposed in the slot. The slide groove passes through both sides of the transmission rod. The slider is disposed between the inner walls of both sides of the slot. The slider is inserted into the slide groove along both sides of the transmission rod.

5. The rotating core-ejecting pen with a pop-out display element according to claim 4, characterized in that: The slot has sliders on both sides of its inner wall, and the sliders on both sides of the slot are spaced apart. The transmission rod has guide grooves on both sides for guiding the sliders to be inserted into the slot. The guide grooves include slopes that guide the sliders on both sides of the slot to move away from each other when inserted.

6. The rotating core-ejecting pen with a pop-out display element according to claim 3, characterized in that: The chute includes vertical sections connected to both ends of the inclined section, and the circumferential width of the opening is greater than the circumferential width of the window.

7. The rotating core-ejecting pen with a pop-out display element according to claim 1, characterized in that: The front end of the rotating sleeve is provided with a sleeve portion, and the rear end of the pen refill support is axially movably inserted into the sleeve portion. The side of the sleeve portion is provided with a first guide groove, and the side of the pen refill support is provided with a protrusion that cooperates with the first guide groove for axial sliding and circumferential limiting. The limiting block is provided on the protrusion and located on the outside of the sleeve portion.

8. The rotating core-ejecting pen with a pop-out display element according to claim 7, characterized in that: The inner peripheral wall of the connecting section is provided with a second guide groove that cooperates with the protrusion for axial sliding and circumferential limiting.

9. The rotating core-ejecting pen with a pop-out display element according to claim 1, characterized in that: The front end of the transmission rod is provided with a plug-in part, and the rear end of the pen refill support includes a plug hole. The plug hole and the plug-in part of the transmission rod form a plug-in fit that can rotate circumferentially but is axially limited.