Lateral pushing type telescopic pen

By using the transmission mechanism of the side-push retractable pen, the problem of the pen tip not retracting in existing push-button pens is solved, enabling visual judgment of the pen tip status and ensuring its service life.

CN223494162UActive Publication Date: 2025-10-31TONGLU CHUNJIANG STATIONERY CO LTD
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Patent Information

Application Number
CN202422960351.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-10-31
Estimated Expiration
2034-12-02

AI Technical Summary

Technical Problem

Existing retractable pens are prone to the retractor being forgotten after use, resulting in the retractor being exposed for an extended period, affecting the lifespan and writing performance.

Method used

A side-push retractable pen was designed, which uses a transmission mechanism between the pressing part and the moving part to extend and retract the pen tip. Users can visually judge the status of the pen tip, reducing the risk of the pen tip not retracting.

Benefits of technology

It improves the accuracy of users in judging the condition of the pen refill, reduces the risk of the pen refill being exposed for a long time, and ensures the lifespan of the pen and the writing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a side-push type telescopic pen which comprises a pen body, the pen refill is arranged in the cavity of the pen body in a sliding mode, a spring is arranged between the bottom end of the pen refill and the pen body, and the two ends of the spring abut against the pen refill and the pen body respectively; the pressing piece is arranged on the side face of the pen body in a sliding mode, and the pressing piece drives a refill in the pen body to stretch out and retract back through a telescopic locking mechanism; wherein the top end of the pen body is connected with a movable part in a sliding mode, the pressing part and the movable part are in transmission connection through a transmission mechanism, and when the pressing part slides relative to the pen body, the pressing part drives the pen core and the movable part to synchronously and reversely move. According to the utility model, the accuracy of visually judging the use state of the refill by a user can be improved, the risk that the refill is exposed for a long time and is damaged due to the fact that the refill does not retract after the pen is used is reduced, and the service life of the pen is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of writing instruments, specifically to a side-push telescopic pen. Background Technology

[0002] Existing push-button pens typically extend and retract the lead by pressing the cap at the top of the pen, which then triggers a telescopic locking mechanism inside the pen. Primarily used for writing, these pens have a relatively limited function. Furthermore, there are instances where the extended lead is forgotten to be retracted after use, leading to prolonged exposure and potential damage or disruption of ink flow during subsequent writing. This can negatively impact the pen's lifespan, especially for children. Utility Model Content

[0003] The purpose of this invention is to provide a side-push retractable pen that improves the accuracy of the user's visual judgment of the pen tip's usage status, reduces the risk of damage caused by the pen tip not retracting after use and being exposed for a long time, and ensures the lifespan of the pen.

[0004] The technical solution adopted by this utility model to solve the above problems is:

[0005] A side-push retractable pen, comprising:

[0006] Pen style;

[0007] The pen refill is slidably disposed within the cavity of the pen body. A spring is provided between the bottom end of the pen refill and the pen body, with the two ends of the spring abutting against the pen refill and the pen body respectively.

[0008] The pressing element is slidably disposed on the side of the pen body. The pressing element drives the pen core inside the pen body to extend and retract through the telescopic locking mechanism.

[0009] The pen body shown has a movable part slidably connected to the top of the pen body. The pressing part and the movable part are connected by a transmission mechanism. When the pressing part slides relative to the pen body, the pressing part drives the pen core and the movable part to move in opposite directions synchronously.

[0010] As a further improvement to the above technical solution, the transmission mechanism includes a mounting component and a hinge rod. The mounting component is inserted into and fixed to the cavity of the pen body. The middle position of the hinge rod is hinged to the mounting component. One end of the hinge rod is connected to the pressing component through a first connecting component. The top end of the first connecting component is hinged to one end of the hinge rod. The bottom end of the first connecting component is inserted into and can be engaged with the top end of the pressing component. The other end of the hinge rod is connected to the movable component through a second connecting component. The top end of the second connecting component is inserted into and can be engaged with the bottom end of the movable component. The top end of the second connecting component is ball-shaped. The bottom end of the second connecting component is hinged to the other end of the hinge rod.

[0011] As a further improvement to the above technical solution, the pressing component includes a sliding part and a pressing part. The sliding part is slidably disposed in the cavity of the pen body along the axial direction of the pen body. The sliding part is located between the telescopic locking mechanism and the transmission mechanism. A through hole is provided on the side of the pen body. The inner end of the pressing part is integrally connected to the side of the sliding part, and its outer end passes through the through hole and is exposed on the side of the pen body.

[0012] As a further improvement to the above technical solution, a groove is provided on the end face of the outer end of the pressing part.

[0013] As a further improvement to the above technical solution, the pen body includes an upper pen barrel and a lower pen barrel. Both the upper and lower pen barrels are tubular structures with openings at both ends. The movable part is located in the cavity of the upper pen barrel, and the telescopic locking mechanism and the transmission mechanism are both located in the cavity of the lower pen barrel. The top end of the lower pen barrel is inserted into and fixed to the bottom end of the upper pen barrel, and a pointed sleeve is detachably installed at the bottom end of the lower pen barrel.

[0014] As a further improvement to the above technical solution, a first slot is provided on the edge of the top and bottom ends of the upper pen barrel, and a second slot is provided on the edge of the top end of the lower pen barrel. When the lower pen barrel is installed on the upper pen barrel, the first slot and the second slot are joined together to form a through hole.

[0015] Compared with the prior art, this utility model has the following advantages and effects:

[0016] This invention, through the structural arrangement of the push button, the pen refill, and the movable component, achieves the effect of driving the pen refill and the movable component to move synchronously in opposite directions when the push button slides relative to the pen body. This allows the user to directly know the pen refill's usage status (i.e., extended and retracted state) by observing the exposed state of the movable component on the pen body. This improves the accuracy of the user's visual judgment of the pen refill's usage status, reduces the risk of damage caused by prolonged exposure of the pen refill after use, and ensures the lifespan of the pen. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a side-push telescopic pen according to this utility model.

[0018] Figure 2 This is a schematic cross-sectional view of the internal structure of a side-push telescopic pen according to this utility model.

[0019] Figure 3 This is an exploded view of the structure of a side-push telescopic pen according to this utility model.

[0020] Figure 4 yes Figure 3 The diagram shows the structure of the transmission mechanism.

[0021] The components include: pen body 1, upper pen barrel 11, lower pen barrel 12, tip sleeve 13, pen core 2, spring 21, pressing part 3, sliding part 31, pressing part 32, telescopic locking mechanism 4, guide rail part 41, pressure rod part 42, locking part 43, movable part 5, transmission mechanism 6, mounting part 61, hinge rod 62, first connecting part 63, second connecting part 64, ball head 65, through hole 7, groove 8, first slot hole 91, and second slot hole 92. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0023] See Figures 1-4 This embodiment discloses a side-push telescopic pen, including a pen body 1, a pen core 2, and a pressing member 3. The pen core 2 is slidably disposed in the cavity of the pen body 1. A spring 21 is provided between the bottom end of the pen core 2 and the pen body 1. The two ends of the spring 21 abut against the pen core 2 and the pen body 1, respectively. The pressing member 3 is slidably disposed on the side of the pen body 1. The pressing member 3 drives the pen core 2 inside the pen body 1 to extend and retract through a telescopic locking mechanism 4. A movable member 5 is slidably connected to the top end of the pen body 1. The pressing member 3 and the movable member 5 are connected by a transmission mechanism 6. When the pressing member 3 slides relative to the pen body 1, the pressing member 3 drives the pen core 2 and the movable member 5 to move synchronously in opposite directions.

[0024] When writing, pressing the pressing element 3 causes the pen refill 2 to extend from the bottom of the pen body 1 via the telescopic locking mechanism 4, and simultaneously causes the movable element 5 to extend from the top of the pen body 1 via the transmission mechanism 6. After writing, pressing the pressing element 3 again causes it to retract the pen refill 2 and the movable element 5 back into the pen body 1 via the telescopic locking mechanism 4 and the transmission mechanism 6, respectively.

[0025] To enhance the fun and interactivity of pen use, the movable part 5 can adopt the appearance of a cartoon head, and the pressing part 3 can also adopt an appearance that matches the shape of the movable part 5. For example, the appearance of the movable part 5 can be a cartoon cat head, and the part of the pressing part 3 that is exposed on the pen body 1 can be in the shape of a cartoon cat paw. This not only improves the visual effect of the pen, but also ensures the effectiveness of pressing the pressing part 3 by using the concave and convex surfaces of the pressing part 3.

[0026] In this embodiment, the telescopic locking mechanism 4 adopts the structure of a conventional telescopic locking mechanism 4 in a conventional press-type pen. Specifically, the telescopic locking mechanism 4 includes a guide rail, a pressure rod, and a locking member. The guide rail is integrally connected to the pen body 1. The pressure rod is slidably disposed within the cavity of the pen body 1 along its axial direction and is non-rotatable. The pressing member 3 is sleeved and engaged with the top end of the pressure rod. The locking member is slidably disposed within the cavity of the pen body 1 along its axial direction and is rotatable. The top end of the locking member is inserted into the bottom end of the pressure rod. When the pressing member 3 is pressed, causing the pressure rod to slide relative to the pen body 1, the pressure rod can push the locking member to move relative to the guide rail. Thus, under the inclined plane cooperation between the guide rail, the pressure rod, and the locking member, the relative position between the guide rail and the locking member changes, thereby achieving the switching between different locking positions of the guide rail and the locking member, and realizing the switching of the pen core 2's usage state (i.e., extended state and retracted state) on the pen body 1.

[0027] See Figures 2-4 The transmission mechanism 6 includes a mounting member 61 and a hinge rod 62. The mounting member 61 is inserted into and fixed to the cavity of the pen body 1. The middle position of the hinge rod 62 is hinged to the mounting member 61. One end of the hinge rod 62 is connected to the pressing member 3 through a first connecting member 63. The top end of the first connecting member 63 is hinged to one end of the hinge rod 62. The bottom end of the first connecting member 63 is inserted into and can be engaged with the top end of the pressing member 3, so that there is a certain amount of movement between the first connecting member 63 and the pressing member 3. The other end of the hinge rod 62 is connected to the movable member 5 through a second connecting member 64. The top end of the second connecting member 64 is inserted into and can be engaged with the bottom end of the movable member 5, so that there is a certain amount of movement between the second connecting member 64 and the movable member 5. The top end of the second connecting member 64 is spherical 65. The bottom end of the second connecting member 64 is hinged to the other end of the hinge rod 62.

[0028] When the pressing member 3 is pressed and slides downward relative to the pen body 1, the pressing member 3 pulls the hinge rod 62 to rotate relative to the mounting member 61 via the first connecting member 63. This causes the hinge rod 62 to push the movable member 5 out of the pen body 1 via the second connecting member 64. At this time, the pressing member 3 drives the pen core 2 to extend out of the pen body 1 via the telescopic locking mechanism 4, and the spring 21 is compressed. When the pressing member 3 is pressed again, the pressing member 3 drives the pen core 2 to retract into the pen body 1 via the telescopic locking mechanism 4. At the same time, the pressing member 3 can slide upward relative to the pen body 1 and reset under the force of the spring 21 restoring its original state. This causes the pressing member 3 to push the hinge rod 62 to rotate relative to the mounting member 61 via the first connecting rod, thereby causing the hinge rod 62 to pull the movable member 5 back into the pen body 1 via the second connecting rod.

[0029] In this embodiment, the mounting component 61 and the pen body 1 can be connected by an interference fit.

[0030] See Figure 2 , Figure 3 The pressing member 3 includes a sliding part 31 and a pressing part 32. The sliding part 31 is slidably disposed in the cavity of the pen body 1 along the axial direction of the pen body 1. The sliding part 31 is located between the telescopic locking mechanism 4 and the transmission mechanism 6. A through hole 7 is provided on the side of the pen body 1. The inner end of the pressing part 32 is integrally connected to the side of the sliding part 31, and its outer end passes through the through hole 7 and is exposed on the side of the pen body 1. This ensures the stability of the pressing member 3 sliding relative to the pen body 1, while also facilitating the pressing of the pressing member 3.

[0031] In this embodiment, a groove 8 is provided on the end face of the outer end of the pressing part 32, which helps to increase the friction between the finger and the pressing part 32, thereby ensuring the effectiveness of pushing the pressing part 3.

[0032] See Figure 2 , Figure 3 The pen body 1 includes an upper pen barrel 11 and a lower pen barrel 12. Both the upper pen barrel 11 and the lower pen barrel 12 are tubular structures with openings at both ends. The movable part 5 is located in the cavity of the upper pen barrel 11, and the telescopic locking mechanism 4 and the transmission mechanism 6 are both located in the cavity of the lower pen barrel 12. The top end of the lower pen barrel 12 is inserted into and fixed to the bottom end of the upper pen barrel 11, and the bottom end of the lower pen barrel 12 is detachably fitted with a pointed sleeve 13, ensuring a clear view of the writing marks. The assembly structure of the pen body 1 improves the convenience of installing the various components within the cavity of the pen body 1, and also facilitates the replacement of the pen refill 2, ensuring the lifespan of the pen and reducing waste.

[0033] In this embodiment, the upper pen barrel 11 and the lower pen barrel 12 are connected by a snap-fit ​​structure, and the lower pen barrel 12 and the tip sleeve 13 are connected by a threaded structure.

[0034] See Figure 3 The upper pen barrel 11 has a first slot 91 on the edge of the top and bottom ends, and the lower pen barrel 12 has a second slot 92 on the edge of the top end. When the lower pen barrel 12 is installed on the upper pen barrel 11, the first slot 91 and the second slot 92 are combined to form a through hole 7, which reduces the difficulty of processing the through hole 7 on the pen body 1 and ensures the yield of the pen body 1.

[0035] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.

Claims

1. A side-push telescopic pen, characterized in that, include: Pen style; The pen refill is slidably disposed within the cavity of the pen body. A spring is provided between the bottom end of the pen refill and the pen body, with the two ends of the spring abutting against the pen refill and the pen body respectively. The pressing element is slidably disposed on the side of the pen body. The pressing element drives the pen core inside the pen body to extend and retract through the telescopic locking mechanism. The pen body shown has a movable part slidably connected to the top of the pen body. The pressing part and the movable part are connected by a transmission mechanism. When the pressing part slides relative to the pen body, the pressing part drives the pen core and the movable part to move in opposite directions synchronously. The transmission mechanism includes a mounting component and a hinge rod. The mounting component is inserted into and fixed to the cavity of the pen body. The middle position of the hinge rod is hinged to the mounting component. One end of the hinge rod is connected to the pressing component through a first connecting component. The top end of the first connecting component is hinged to one end of the hinge rod. The bottom end of the first connecting component is inserted into and can be locked onto the top end of the pressing component. The other end of the hinge rod is connected to the movable component through a second connecting component. The top end of the second connecting component is inserted into and can be locked onto the bottom end of the movable component. The top end of the second connecting component is ball-shaped. The bottom end of the second connecting component is hinged to the other end of the hinge rod.

2. The side-push telescopic pen according to claim 1, characterized in that: The pressing component includes a sliding part and a pressing part. The sliding part is slidably disposed in the cavity of the pen body along the axial direction of the pen body. The sliding part is located between the telescopic locking mechanism and the transmission mechanism. A through hole is provided on the side of the pen body. The inner end of the pressing part is integrally connected to the side of the sliding part, and its outer end passes through the through hole and is exposed on the side of the pen body.

3. The side-push telescopic pen according to claim 2, characterized in that: A groove is provided on the end face of the outer end of the pressing part.

4. The side-push telescopic pen according to claim 2, characterized in that: The pen body includes an upper pen barrel and a lower pen barrel, both of which are tubular structures with openings at both ends. The movable part is located in the cavity of the upper pen barrel, and the telescopic locking mechanism and the transmission mechanism are both located in the cavity of the lower pen barrel. The top end of the lower pen barrel is inserted into and fixed to the bottom end of the upper pen barrel, and a pointed sleeve is detachably installed at the bottom end of the lower pen barrel.

5. The side-push telescopic pen according to claim 4, characterized in that: The upper pen barrel has a first slot on the edge of the top and bottom ends, and the lower pen barrel has a second slot on the edge of the top end. When the lower pen barrel is installed on the upper pen barrel, the first slot and the second slot are joined together to form a through hole.