Writing pen capable of being telescopically positioned
By using the spiral connection between the active and driven components and the locking mechanism of the positioning component, the problem of fixed pen refill length is solved, and the pen refill length can be flexibly adjusted to meet the needs of different users.
Patent Information
- Application Number
- CN202423200707.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The current pen refills have a fixed length, which cannot be adjusted according to different writing habits, resulting in inconvenience.
Design a writing pen with telescopic positioning. Through the spiral connection of the active and driven parts, combined with the engagement of the positioning part and the positioning hole, the length of the pen lead can be adjusted and positioned.
It allows for flexible adjustment of the pen refill length to meet the needs of different users, and its structure is simple and practical.
Smart Images
Figure CN223618492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stationery, and in particular to a writing pen that can be extended and positioned. Background Technology
[0002] Pens are indispensable tools for learning and working in daily life, and they come in various forms, basically divided into capped pens and retractable pens. Capped pens protect the tip of the refill with the cap, but the length of the tip extending beyond the front of the pen is fixed, requiring the cap to be removed before use, which is prone to loss. Retractable pens solve the problem of the cap being easily lost, but the extension and retraction are also fixed at one position; pressing once extends and pressing again retracts, and the length of the tip extending beyond the front of the pen is still fixed. For people with different writing habits, this does not allow for personalized adjustment of the tip extension length, causing inconvenience and making it impossible to simultaneously adjust the tip extension length. Utility Model Content
[0003] To address the shortcomings of existing technologies, this invention provides a writing pen that can be extended and positioned.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a telescopic and positioning writing pen, including a pen barrel and a cylindrical pen cap that can be detachably connected to the end of the pen barrel. The pen cap has an active component partially located outside the pen cap, which is rotatably disposed inside the end of the pen cap. The pen cap has a driven component threadedly connected to the inner wall of the front end. The end of the driven component is slidably connected to the active component. The driven component moves forward spirally under the rotation of the active component. A positioning component that can match and engage for positioning and a plurality of positioning holes spaced around the pen cap or the active component in a circumferential direction are provided between the inner wall of the pen cap and the outer wall of the active component.
[0005] Preferably, the inner wall of the pen cap is provided with a pen cap hole, and the positioning member is a telescopic positioning rod provided in the pen cap hole. One end of the positioning rod is a spherical or hemispherical head that can extend or retract into the pen cap hole. A first telescopic spring is sleeved on the positioning rod. The positioning hole is a positioning hole provided on the outer wall of the active member that can match and engage with the spherical head. Multiple positioning holes are arranged around the circumference of the active member.
[0006] Preferably, the pen cap hole is a threaded through hole that penetrates the side wall of the pen cap. A pen clip can be detachably installed in the pen cap hole via a connector. The connector has a connector hole on its end face facing the center of the pen cap. The positioning rod and the first telescopic spring are installed in the connector hole.
[0007] Preferably, the outer wall of the active component is provided with a first groove that surrounds the circumference of the active component, and the positioning hole is located at the bottom of the first groove.
[0008] Preferably, the outer wall of the front end of the driven member is provided with a first external thread, and the inner wall of the front end of the pen cap is provided with a first internal thread, with a non-threaded area spaced between the first internal thread and the end of the front end of the pen cap.
[0009] Preferably, the tail section of the driven member has a regular polygonal structure, and the driving member has a cylindrical structure that matches and engages with the tail of the driven member.
[0010] Preferably, a soundproof sleeve is provided between the pen cap and the active component, and the active component is fitted onto the outer wall of the active component.
[0011] Preferably, the active component has anti-slip texture on the side wall of the portion outside the pen cap.
[0012] Preferably, the pen barrel includes a cylindrical pen barrel body and a pen tip that is detachably connected to the front end of the pen barrel body.
[0013] Preferably, the pen barrel is equipped with a pen refill that is detachably connected to the driven member at the tail, and the front end of the pen refill is fitted with a second telescopic spring.
[0014] The beneficial effects of this utility model are as follows: This utility model uses the rotation of the active component to drive the driven component to move forward spirally relative to the pen cap, thereby realizing the extension and retraction of the pen refill. When the driven component moves forward spirally, the positioning component and positioning hole between the pen cap and the active component are used to achieve positioning, thus positioning the forward movement position, and thus positioning the length of the pen tip extending from the front end of the pen barrel. The whole structure is simple and practical and can meet the needs of different users. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of the writing pen along the axis of the pen core according to an embodiment of the present invention;
[0016] Figure 2 This is an embodiment of the present utility model. Figure 1 A magnified structural diagram of A in the middle;
[0017] Figure 3 This is a schematic diagram of the structure of the writing pen according to an embodiment of this utility model;
[0018] Figure 4 This is an exploded structural diagram of the writing pen according to an embodiment of the present invention;
[0019] Figure 5 This is a cross-sectional schematic diagram of the positioning component and connecting component structure according to an embodiment of this utility model;
[0020] Figure 6 This is a schematic diagram of the pen cap structure according to an embodiment of the present invention;
[0021] Figure 7 This is a schematic diagram of the structure of the active component in an embodiment of this utility model;
[0022] Figure 8 This is a schematic diagram of the follower component in an embodiment of the present utility model;
[0023] Component names and serial numbers in the diagram: 1-Pen barrel 10-Pen tip 11-Pen barrel body 12-Pen core 13-Second telescopic spring 2-Pen cap 20-Pen cap hole 21-First internal thread 22-Non-threaded area 3-Active component 30-First groove 31-Anti-slip texture 4-Driven component 40-First external thread 5-Positioning component 50-Ball head 51-First telescopic spring 6-Positioning hole 7-Pen clip 8-Connector 80-Connector hole 9-Soundproof sleeve. Detailed Implementation
[0024] To more clearly illustrate the purpose, technical solution, and advantages of the embodiments of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. A clear and complete description will be provided. Obviously, the described embodiments are some, but not all, embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0025] Examples of embodiments of this utility model Figures 1 to 8As shown, a telescopic writing pen includes a pen barrel 1 and a cylindrical pen cap 2 detachably connected to the end of the pen barrel 1. The pen barrel 1 has a hollow tubular structure with a gradually decreasing diameter at its front end. A second internal thread is provided at the end of its inner wall, and a second external thread is provided at the front end of the outer wall of the pen cap 2. The pen cap 2 is then threaded onto the pen barrel 1 through the mating of the second external thread and the second internal thread to form the pen shell. The pen barrel 1 includes a cylindrical pen barrel body 11 and a pen tip 10 detachably connected to the front end of the pen barrel body 11, so that the pen tip 10 can be removed from the pen tip 1. The pen refill 12 is installed into the pen body 11 at position 0. Their detachable connection can be achieved by setting a third internal thread at the end of the inner wall of the pen tip 10 and a third external thread at the front end of the outer wall of the pen body 11. The threaded connection is then achieved through the cooperation of the third internal and third external threads, making assembly and disassembly simple and convenient. A sealing ring can also be set at the end of the second external thread on the pen cap 2 to more tightly connect the pen body 1 to the pen cap 2. In use, the pen refill 12 is installed inside the pen body 1, with the pen tip extending from the front end of the pen body 1. The end of the pen refill 12 is detachably connected to the driven member 4. A second telescopic spring 13 is fitted at the front end of the core 12, meaning the second telescopic spring 13 is fitted at the tip of the core 12. The body of the core 12 then blocks and limits the tail end of the second telescopic spring 13. After the core 12 is installed inside the pen barrel 1, the front end of the second telescopic spring 13 presses against the inner wall of the front end of the pen barrel 1, which is the inner wall of the pen tip 10. The second telescopic spring 13 allows the core 12 to apply an upward force to the driven member 4, maintaining the stability of the sliding connection structure between the driven member 4 and the driving member 3. At this time, a... The end face groove is then fitted into the end face groove. The pen cap 2 has a rotating active member 3 partially outside the pen cap 2. The active member 3 is a cylindrical structure with a closed end. That is, the front part of the active member 3 is inside the end of the pen cap 2 and can rotate relative to the pen cap 2. The tail part of the active member 3 is exposed outside the pen cap 2. At this time, the diameter of the tail part of the active member 3 is larger than the diameter of the tail part of the pen cap 2. In this way, the tail and the front of the active member 3 form a step. The step will abut against the end face of the tail of the pen cap 2, which can prevent the active member 3 from falling into the pen cap 2.When in use, the exposed part of the driving component 3 can be pinched to rotate it relative to the pen cap 2. To prevent slippage, anti-slip texture 31 is provided on the side wall of the portion of the driving component 3 outside the pen cap 2. Specifically, anti-slip texture 31 is provided on the tail side wall of the driving component 3. The anti-slip texture 31 can be composed of multiple spaced strip-shaped protrusions or dots. A driven component 4 is threadedly connected to the inner wall of the front end of the pen cap 2. The driven component 4 is installed inside the pen cap 2 and threadedly connected to the inner wall of the front end of the pen cap 2. Their threaded connection is achieved by the first... An external thread 40 is provided, and a first internal thread 21 is provided on the inner wall of the front end of the pen cap 2. Then, the threaded connection is achieved by the cooperation of the first external thread 40 and the first internal thread 21. At this time, there is a non-threaded area 22 between the first internal thread 21 and the end of the front end of the pen cap 2. In this way, the driven member 4 can be disengaged from the threaded connection with the pen cap 2 after spiraling forward, which facilitates the disassembly and assembly of the driven member 4. The tail of the driven member 4 is slidably connected to the driving member 3. The driven member 4 spirals forward under the rotation of the driving member 3. That is to say, the front end of the driven member 4 is threadedly connected to the pen cap 2 inside the pen cap 2, and its tail is threadedly connected to the pen cap 2. The driven member 4 is slidably disposed within the active member 3, and simultaneously can spirally move forward within the pen cap 2 as the active member 3 rotates. That is, the driven member 4 can only slide along the axial direction of the active member 3 and cannot rotate relative to it. As the active member 3 rotates, it drives the driven member 4 to rotate relative to the pen cap 2. Since the driven member 4 and the pen cap 2 are threadedly connected, during rotation, the driven member 4 spirals forward relative to the pen cap 2. This spiral forward movement causes the driven member 4 to slide forward relative to the active member 3. Thus, the rotation of the active member 3 drives the driven member 4 to spiral forward relative to the pen cap. This allows for the extension and retraction of the pen tip 12. A positioning element 5 and multiple positioning holes 6 are provided between the inner wall of the pen cap 2 and the outer wall of the active component 3, capable of matching and engaging for positioning. These positioning holes are spaced around the pen cap 2 or the active component 3 in a circumferential arrangement. The pen cap 2 and the active component 3 are positioned by the matching engagement of the positioning element 5 and the positioning holes 6. The positioning element 5 and the positioning holes 6 are appropriately positioned on the pen cap 2 or the active component 3 according to different usage requirements. This positioning structure is simple and practical, and can also position the length of the pen tip 12 extending beyond the front end of the pen barrel 1, thus meeting the usage needs of different users.
[0026] Further improvements, such as Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, a pen cap hole 20 is provided on the inner wall of the pen cap 2. The positioning member 5 is a telescopic positioning rod disposed in the pen cap hole 20. One end of the positioning rod is a spherical or hemispherical head 50 that can extend or retract from the pen cap hole 20. A first telescopic spring 51 is sleeved on the positioning rod. That is, the positioning member 5 is installed in the pen cap hole 20 on the pen cap 2. The spherical head of the positioning member 5 can partially or completely extend or retract from the pen cap hole 20. The two ends of the first telescopic spring 51 are correspondingly connected to the positioning member 5 and the inner wall of the pen cap hole 20. Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, the positioning hole 6 is a positioning hole provided on the outer wall of the active member 3 that can match and engage with the ball head 50. At this time, multiple positioning holes 6 are arranged at intervals on the front end of the outer wall of the active member 3, and multiple positioning holes 6 are arranged around the circumference of the active member 3. Preferably, multiple positioning holes 6 are arranged at equal intervals. When the first extension spring 51 is not stretched or compressed, part of the ball head 50 is outside the pen cap hole 20 and is engaged with the positioning hole 6. When the active member is rotated, the ball head 50 is pressed back into the pen cap hole 20 and disengaged from the positioning hole 6. The positioning hole 6 is a hemispherical blind hole that matches the ball head 50, or it can be a frustum-shaped through hole with an outer diameter (adjacent to the ball head) larger than the inner diameter. At this time, the pen cap hole 20 is a through hole penetrating the side wall of the pen cap 2. A pen clip 7 can be detachably installed inside the pen cap hole 20 via a connector 8. A pen clip through hole is provided on the pen clip 7. Then, the pen clip through hole and the pen cap hole 20 are aligned. The connector 8 is then passed through the pen clip through hole and connected to the pen cap hole 20 to achieve the connection between the pen clip 7 and the pen cap 2. If the connector 8 is a connecting rod that can be matched and engaged within the pen cap hole 20, and the pen cap hole 20 is a threaded through hole, the connector 8 can be a bolt, using the bolt's thread to connect to the pen cap hole 20. Figure 5 As shown, a connector hole 80 is provided on the end face of the connector 8 facing the center of the pen cap 2, that is, the end face facing the axis of the pen cap 2. The positioning rod and the first telescopic spring 51 are installed in the connector hole 80. The connector hole 80 is set as a blind hole. The end face of the connector 8 facing the center of the pen cap extends out of the inner end of the pen cap hole 20. In this way, the positioning rod is movably installed in the connector hole 80 of the connector 8, which simplifies the structural setting on the pen cap 2. The two ends of the first telescopic spring 51 are correspondingly connected to the positioning rod and the hole wall of the connector hole 80. Figure 7 As shown, the outer wall of the active component 3 is provided with a first groove 30 around the circumference of the active component 3, and the positioning hole 6 is provided at the bottom of the first groove 30. This ensures that there is no large gap between the outer wall of the active component 3 and the inner wall of the pen cap 2 in the position where the first groove 30 is not provided, while also ensuring the movement space of the positioning component 5.
[0027] Further improvements, such as Figure 4 , Figure 7 and Figure 8As shown, for the connection structure between the driven member 4 and the driving member 3, the tail section of the driven member 4 is a regular polygonal structure, and the driving member 3 is a cylindrical structure that matches and engages with the tail of the driven member 4. That is, the tail of the driven member 4 is a regular polygonal prism shape, and the driving member 3 is a cylindrical structure. Its inner ring at the tail is also a regular polygonal structure, and it has the same number of sides as the driven member 4, such as a regular hexagonal structure. At this time, the driven member 4 is inserted into the driving member 3 so that the two match and engage at the tail. The polygonal structure at the tail of the two prevents the driven member 4 from rotating relative to the driving member 3, but the driven member 4 can slide along the axis of the driving member 3. In this way, when the driving member 3 rotates, it will take the driven member 4 to rotate, and the rotation of the driven member 4 will cause it to move forward relative to the pen cap 2. The driven member 4 will then slide forward relative to the driving member 3.
[0028] Further improvements, such as Figure 2 and Figure 4 As shown, a soundproof sleeve 9 is provided between the pen cap 2 and the active component 3, and is fitted on the outer wall of the active component 3. The soundproof sleeve 9 is made of plastic, which can reduce the friction noise when the active component 3 and the pen cap 2 rotate relative to each other, especially the metal friction noise when both the active component 3 and the pen cap 2 are made of metal materials.
[0029] Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.
Claims
1. A writing pen capable of telescopic positioning, characterized in that: The pen includes a pen barrel and a cylindrical pen cap that can be detachably connected to the end of the pen barrel. The pen cap has an active component that is partially outside the pen cap and is rotatably disposed inside the end of the pen cap. The pen cap has a driven component that is threadedly connected to the inner wall of the front end. The end of the driven component is slidably connected to the active component. The driven component moves forward spirally under the rotation of the active component. The inner wall of the pen cap and the outer wall of the active component are provided with a positioning component that can match and engage, and a plurality of positioning holes are spaced around the pen cap or the active component in a circumferential direction.
2. The retractable and positioning writing pen according to claim 1, characterized in that... The inner wall of the pen cap is provided with a pen cap hole. The positioning member is a telescopic positioning rod provided in the pen cap hole. One end of the positioning rod is a spherical or hemispherical head that can extend or retract into the pen cap hole. A first telescopic spring is sleeved on the positioning rod. The positioning hole is a positioning hole provided on the outer wall of the active member that can match and engage with the spherical head. Multiple positioning holes are arranged around the circumference of the active member.
3. The retractable and positioning writing pen according to claim 2, characterized in that... The pen cap hole is a threaded through hole that penetrates the side wall of the pen cap. A pen clip can be detachably installed in the pen cap hole via a connector. The connector has a connector hole on its end face facing the center of the pen cap. The positioning rod and the first telescopic spring are installed in the connector hole.
4. The retractable and positioning writing pen according to claim 2, characterized in that... The outer wall of the active component is provided with a first groove that surrounds the circumference of the active component, and the positioning hole is located at the bottom of the first groove.
5. The retractable and positioning writing pen according to claim 1, characterized in that: The outer wall of the front end of the driven member is provided with a first external thread, and the inner wall of the front end of the pen cap is provided with a first internal thread, and the first internal thread is separated from the end of the front end of the pen cap by a non-threaded area.
6. The retractable and positioning writing pen according to claim 1, characterized in that: The tail section of the driven member has a regular polygonal structure, and the driving member has a cylindrical structure that matches and engages with the tail of the driven member.
7. The retractable and positioning writing pen according to claim 1, characterized in that... A soundproof sleeve is provided between the pen cap and the active component, and is fitted onto the outer wall of the active component.
8. The retractable and positioning writing pen according to claim 1, characterized in that... The active component has anti-slip texture on the side wall of the part outside the pen cap.
9. The retractable and positioning writing pen according to claim 1, characterized in that... The pen barrel includes a cylindrical pen barrel body and a pen tip that can be detachably connected to the front end of the pen barrel body.
10. The retractable and positionable writing pen according to any one of claims 1 to 9, characterized in that... The pen barrel contains a pen refill that can be detachably connected to the driven component at its tail. A second telescopic spring is fitted to the front end of the pen refill.