A pen tip anti-impact ballpoint pen

Abstract

The utility model discloses a kind of pen tip anti-impact ballpoint pens, belong to ballpoint pen technical field, its technical scheme main points include pen holder, pen tip fixed in pen holder top end and the pen cap adapted to pen tip, the pen cap can be bidirectionally sleeved in the both ends of pen holder, the inside of the pen cap is equipped with detachable counterweight structure;The detachable counterweight structure includes mounting seat, the top of the mounting seat is magnetically connected with magnetic block, the magnetic block is in the inside of pen cap and away from the mouth one end, by the setting of detachable counterweight structure, ballpoint pen gravity center is deviated pen holder tail, pen cap is sleeved in tail when using, tail first landing when falling, directly avoid pen tip impact hard surface from source, greatly reduce pen tip damage probability, extend ballpoint pen service life, and pen cap retains bidirectional sleeving design, when storage, sleeve in pen tip end is realized dustproof, prevent ink leakage, when using, sleeve in tail is realized anti-drop, completely inherit the protection function of traditional pen cap, no function conflict.

Description

Technical Field

[0001] This utility model relates to the field of ballpoint pen technology, and in particular to a ballpoint pen with an anti-impact tip. Background Technology

[0002] Gel pens are an indispensable stationery for people's daily study and office work. Currently, when using gel pens with caps, the caps need to be removed. If the user accidentally drops the pen, since the center of gravity of the pen is usually located in the middle or slightly forward of the pen body, the pen tip is very likely to hit the ground directly, causing damage to the ball bearing and ball seat inside the pen tip, rendering the pen unusable.

[0003] In the existing technology, there are push-button gel pens that use a spring-buffered structure to protect the pen tip, but such structures are complex, costly, and not suitable for traditional cap-type gel pens.

[0004] Therefore, a ballpoint pen with an impact-resistant tip is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a tip-impact resistant gel pen that can solve the problem that existing push-button gel pens, which protect the tip through a spring-buffered structure, are complex, costly, and unsuitable for traditional cap-type gel pens.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pen tip anti-impact neutral pen, comprising a pen barrel, a pen tip fixed to the top of the pen barrel, and a pen cap adapted to the pen tip. The pen cap can be fitted onto both ends of the pen barrel in both directions, and the pen cap has a detachable counterweight structure inside.

[0007] The detachable counterweight structure includes a mounting base, a magnetic block magnetically connected to the top of the mounting base, the magnetic block being located inside the pen cap at the end furthest from the opening, and an elastic ring covering the outer side of the magnetic block, the outer side of the elastic ring contacting the inner wall of the pen cap, a number of limiting members being fixedly connected in a ring shape to the outer side of the bottom of the mounting base, and a counterweight being provided at the bottom of the mounting base, the counterweight being located within the installation space formed between the number of limiting members.

[0008] Preferably, the limiting member includes two fixed ends, with the top fixed end fixedly connected to the bottom of the mounting base, and the outer side of the bottom fixed end contacting the inner wall of the pen cap.

[0009] Preferably, an elastic segment is fixedly connected between the two fixed ends, and an elastic limiting plate is fixedly connected to the inner side of the elastic segment, with the other end of the elastic limiting plate located at the bottom of the counterweight.

[0010] Preferably, the elastic segment is generally arc-shaped, and the middle part of the elastic segment bends inward.

[0011] Preferably, the counterweight has a cylindrical structure, and the top of the counterweight is provided with a connecting stud integral with it. The bottom of the mounting base is provided with a threaded groove that cooperates with the connecting stud. The counterweight is detachably fixed to the mounting base through the connecting stud.

[0012] Preferably, the axis of the counterweight coincides with the axis of the pen cap, and the side of the counterweight away from the mounting base has an internal hexagonal groove, the size of which is adapted to a standard internal hexagonal wrench. The top of the mounting base is fixedly connected to several positioning posts in a ring shape, and the top of the positioning posts extends into the interior of the magnetic block.

[0013] Preferably, the total weight of the detachable counterweight structure can be selected as 3g, 4g or 5g, and the counterweight can be disassembled individually.

[0014] Preferably, the end of the pen cap near the opening is made of a slightly elastic material, and the opening of the pen cap is provided with a connecting protrusion integrally formed therewith, and both ends of the pen barrel are provided with connecting grooves that cooperate with the connecting protrusion.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This application utilizes a detachable counterweight structure to shift the center of gravity of the ballpoint pen towards the tail. When in use, the cap is fitted onto the tail, ensuring the tail hits the ground first in case of a fall, thus preventing the pen tip from directly impacting a hard surface. This significantly reduces the probability of tip damage and extends the pen's lifespan. The cap also features a two-way fitting design: when stored, it fits onto the pen tip for dust and ink leakage prevention; when in use, it fits onto the tail for drop protection, fully inheriting the protective functions of traditional pen caps without any functional conflict. Furthermore, the counterweight structure employs a combination of magnetic, limiting, and threaded connections for secure installation, allowing for quick removal and replacement of counterweights of different weights to suit various user scenarios and weight preferences. After removal, the cap returns to its original lightweight state, enabling flexible switching between usage modes. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the impact-resistant gel pen of this utility model.

[0018] Figure 2 This is a schematic diagram showing the connection between the pen cap, pen tip, and pen barrel of this utility model;

[0019] Figure 3 This is a schematic diagram of the detachable counterweight structure of this utility model;

[0020] Figure 4 This is a schematic diagram showing the connection between the limiting component, the mounting base, and the counterweight of this utility model;

[0021] Figure 5This is a schematic diagram showing the connection between the mounting base and the magnetic block of this utility model.

[0022] In the diagram, 1. Pen barrel; 2. Pen tip; 3. Pen cap; 4. Detachable counterweight structure; 41. Mounting base; 42. Magnetic block; 43. Elastic ring; 44. Limiting component; 441. Fixed end; 442. Elastic segment; 443. Elastic limiting plate; 45. Counterweight block; 5. Connecting stud; 6. Threaded groove; 7. Socket hexagonal groove; 8. Positioning pin; 9. Connecting protrusion; 10. Connecting groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] A pen tip anti-impact gel pen includes a pen barrel 1, a pen tip 2 fixed to the top of the pen barrel 1, and a pen cap 3 adapted to the pen tip 2. The pen cap 3 can be fitted onto both ends of the pen barrel 1 in both directions, and the pen cap 3 has a detachable counterweight structure 4 inside.

[0026] The detachable counterweight structure 4 includes a mounting base 41. A magnetic block 42 is magnetically connected to the top of the mounting base 41. The magnetic block 42 is located inside the pen cap 3 at the end away from the opening. An elastic ring 43 covers the outside of the magnetic block 42. The outer side of the elastic ring 43 contacts the inner wall of the pen cap 3. Several limiting members 44 are fixedly connected to the outer side of the bottom of the mounting base 41 in a ring shape. A counterweight 45 is provided at the bottom of the mounting base 41. The counterweight 45 is located in the installation space formed between the several limiting members 44.

[0027] In this embodiment: By setting a detachable counterweight structure, during use, the magnetic block 42 can be built into the pen cap 3 by fitting the elastic ring 43 against the inner wall of the pen cap 3. Then, the top of the mounting base 41 is magnetically connected to the magnetic block 42 to form a preliminary fixation. Subsequently, the counterweight 45 is placed into the installation space formed by several limiting members 44 at the bottom of the mounting base 41. The limiting members 44 achieve radial positioning of the counterweight 45, completing the assembly of the detachable counterweight structure 4 and the pen cap 3. When using the ballpoint pen, the pen cap 3 is removed from the pen tip 2 and connected through the connection at the opening of the pen cap 3. The structure is fitted onto the tail of the pen barrel 1. The counterweight structure shifts the center of gravity of the ballpoint pen towards the tail, so that when it falls, the cap 3 (tail) hits the ground first, preventing the pen tip 2 from directly impacting it. When storing, the cap 3 is removed from the tail and fitted onto the pen tip 2, providing dust and ink leakage protection. If the counterweight needs to be adjusted or disassembled, the mounting base 41 and the magnetic block 42 can be separated, and the counterweight block 45 can be removed. Therefore, through the detachable counterweight structure 4, the center of gravity of the ballpoint pen is shifted towards the tail of the pen barrel 1, preventing the pen tip 2 from directly impacting the hard surface from the source, greatly reducing the probability of pen tip 2 being damaged, and extending the service life of the ballpoint pen.

[0028] Specifically, such as Figure 4 As shown, the limiting member 44 includes two fixed ends 441. The top fixed end 441 is fixedly connected to the bottom of the mounting base 41, and the outer side of the bottom fixed end 441 contacts the inner wall of the pen cap 3.

[0029] Specifically, such as Figure 4 As shown, an elastic segment 442 is fixedly connected between the two fixed ends 441, and an elastic limiting plate 443 is fixedly connected to the inner side of the elastic segment 442. The other end of the elastic limiting plate 443 is located at the bottom of the counterweight block 45.

[0030] Specifically, such as Figure 4 As shown, the elastic segment 442 is generally arc-shaped, and the middle part of the elastic segment 442 bends inward.

[0031] In this embodiment: by setting a limiting member 44, when installing the counterweight 45, the top of the counterweight 45 presses against the elastic limiting plate 443, causing it to deform, and at the same time, the elastic segment 442 undergoes elastic deformation towards the inner wall of the pen cap 3, so that the elastic limiting plate 443 makes way for the installation path of the counterweight 45. After the counterweight 45 is connected to the mounting base 41, the elastic force of the elastic segment 442 acts on the bottom of the counterweight 45 through the elastic limiting plate 443, realizing the axial positioning of the counterweight 45. Through the combined design of the elastic segment 442 and the elastic limiting plate 443, a continuous limiting force is generated through elastic deformation, which firmly fixes the counterweight 45, preventing the counterweight 45 from shifting due to falling impact or shaking, and ensuring the stability of the rearward center of gravity effect.

[0032] Specifically, such as Figure 4As shown, the counterweight 45 has a cylindrical structure, and the top of the counterweight 45 is provided with a connecting stud 5 integrated with it. The bottom of the mounting base 41 is provided with a threaded groove 6 that cooperates with the connecting stud 5. The counterweight 45 is detachably fixed to the mounting base 41 through the connecting stud 5.

[0033] Specifically, such as Figure 4 , Figure 5 As shown, the axis of the counterweight 45 coincides with the axis of the pen cap 3. The counterweight 45 has an internal hexagonal groove 7 on the side away from the mounting base 41, and the size of the internal hexagonal groove 7 is adapted to a standard internal hexagonal wrench. The top of the mounting base 41 is fixedly connected with several positioning posts 8 in a ring shape, and the top of the positioning posts 8 extends into the interior of the magnetic block 42.

[0034] In this embodiment: by setting the threaded groove 6 of the connecting stud 5, when installing the counterweight 45, the connecting stud 5 on the top of the counterweight 45 is aligned with the threaded groove 6 on the bottom of the mounting base 41, and the counterweight 45 is rotated clockwise so that the connecting stud 5 is screwed into the threaded groove 6, thereby realizing the detachable fixation of the counterweight 45 and the mounting base 41, so that the counterweight 45 will not loosen during use and can remain stable even under strong impact, ensuring the rearward center of gravity effect; the design of the positioning post 8 ensures that the magnetic block 42, the mounting base 41 and the counterweight 45 are coaxial, ensuring the stability of the rearward center of gravity effect, improving the drop protection reliability, and avoiding the impact protection effect due to the center of gravity shift; the setting of the internal hexagonal groove 7 facilitates the installation and removal of the counterweight 45.

[0035] Specifically, such as Figure 2 As shown, the total weight of the detachable counterweight structure 4 can be selected as 3g, 4g or 5g, and the counterweight block 45 can be removed individually.

[0036] In this embodiment, the use of counterweights 45 of various weights can meet the needs of different users and different usage scenarios, thereby improving the versatility and practicality of the product.

[0037] Specifically, such as Figure 2 As shown, the end of the pen cap 3 near the opening is made of a slightly elastic material, and the opening of the pen cap 3 is provided with a connecting protrusion 9 integrally formed therewith. Both ends of the pen barrel 1 are provided with connecting grooves 10 that cooperate with the connecting protrusion 9.

[0038] In this embodiment: by setting the connecting protrusion 9 and the connecting groove 10, when the pen cap 3 is fitted, the micro-elastic material at the opening of the pen cap 3 undergoes slight deformation, so that the connecting protrusion 9 can be smoothly inserted into the connecting groove 10 at both ends of the pen barrel 1. The connecting protrusion 9 and the connecting groove 10 fit tightly together, so as to achieve a stable connection between the pen cap 3 and the pen barrel 1.

[0039] Working principle: In use, the elastic ring 43 and the magnetic block 42 are inserted into the pen cap 3 through the opening end of the pen cap 3, and pushed to the end of the pen cap 3 away from the opening. At this time, the elastic ring 43 is squeezed and rubbed against the inner wall of the pen cap 3 on the outside, and its elastic deformation achieves self-tightening and fixing, thereby stably pre-positioning the magnetic block 42 on the top of the pen cap 3. Then, the positioning post 8 is aligned with the preset hole groove inside the magnetic block 42, and the mounting base 41 is firmly attracted and connected to the magnetic block 42 by magnetic attraction. Then, according to the needs, the corresponding weight is installed into the pen cap 3, and the counterweight 4 is used. The connecting stud 5 at the top is aligned with the threaded groove 6 at the bottom of the mounting base 41, and pressure is applied. During this process, the top of the counterweight 45 will first contact and press against several elastic limiting plates 443. Under the pressure, the elastic limiting plates 443 force the elastic segment 442 to deform elastically outward (i.e., towards the inner wall of the pen cap 3), thereby making room for the installation of the counterweight 45. After the end of the connecting stud 5 enters the threaded groove 6, the counterweight 45 is rotated (a standard Allen wrench can be inserted into the Allen groove 7 at the bottom of the counterweight 45 to save effort), and the connecting stud 5 is completely rotated. The counterweight 45 is fully screwed into the threaded groove 6, achieving a threaded fastening connection between the counterweight 45 and the mounting base 41. At this time, the elastic segment 442 of the limiting member 44, under its own restoring force, drives the elastic limiting plate 443 to tightly adhere to the bottom of the counterweight 45, forming an upward supporting force. Together with the threaded connection, this achieves stable axial and radial positioning of the counterweight 45, effectively preventing it from loosening during subsequent use. After assembly, it can be used for writing. Remove the pen cap 3 from the pen tip 2 at the front end of the pen barrel 1, and fit the open end of the pen cap 3 onto the tail of the pen barrel 1. At this time, the pen cap 3 is open. The micro-elastic material undergoes slight deformation, causing the connecting protrusion 9 to tightly engage with the pre-set connecting groove 10 at the end of the pen barrel 1, thus achieving a reliable connection between the pen cap 3 and the pen barrel 1. If the pen is accidentally dropped during use, due to the rearward shift of the center of gravity, the pen's movement in the air will naturally adjust so that the heavy end (i.e., the end of the pen cap 3 with the counterweight structure) points downward. When it hits the ground, the pen cap 3 or the end of the pen barrel 1 will hit the ground first, while the pen tip 2 will face upward or only make contact with the ground on its side. This avoids the ball bearing and ball seat of the pen tip 2 from being subjected to direct and fatal impact, achieving the purpose of effective impact protection.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pen with anti-impact tip, comprising a pen barrel (1), a pen tip (2) fixed to the top of the pen barrel (1), and a pen cap (3) adapted to the pen tip (2), characterized in that: The pen cap (3) can be fitted onto both ends of the pen barrel (1) in both directions, and the pen cap (3) has a detachable counterweight structure (4) inside. The detachable counterweight structure (4) includes a mounting base (41), a magnetic block (42) is magnetically connected to the top of the mounting base (41), the magnetic block (42) is located inside the pen cap (3) away from the opening, and an elastic ring (43) is wrapped around the outside of the magnetic block (42). The outer side of the elastic ring (43) is in contact with the inner wall of the pen cap (3). Several limiting members (44) are fixedly connected to the outer side of the bottom of the mounting base (41) in a ring shape, and a counterweight (45) is provided at the bottom of the mounting base (41). The counterweight (45) is located in the installation space formed between the several limiting members (44).

2. The pen tip anti-impact gel pen according to claim 1, characterized in that: The limiting member (44) includes two fixed ends (441), the top fixed end (441) is fixedly connected to the bottom of the mounting base (41), and the outer side of the bottom fixed end (441) is in contact with the inner wall of the pen cap (3).

3. The pen tip anti-impact gel pen according to claim 2, characterized in that: An elastic segment (442) is fixedly connected between the two fixed ends (441) and the inner side of the elastic segment (442) is fixedly connected to an elastic limiting plate (443), the other end of which is located at the bottom of the counterweight (45).

4. The anti-impact gel pen according to claim 3, characterized in that: The elastic segment (442) is generally arc-shaped, and the middle part of the elastic segment (442) bends inward.

5. A pen with an impact-resistant tip according to claim 1, characterized in that: The counterweight (45) is a cylindrical structure, and the top of the counterweight (45) is provided with a connecting stud (5) integral with it. The bottom of the mounting base (41) is provided with a threaded groove (6) that cooperates with the connecting stud (5). The counterweight (45) is detachably fixed to the mounting base (41) through the connecting stud (5).

6. A pen tip anti-impact gel pen according to claim 1, characterized in that: The axis of the counterweight (45) coincides with the axis of the pen cap (3). The counterweight (45) has an internal hexagonal groove (7) on the side away from the mounting base (41), and the size of the internal hexagonal groove (7) is adapted to a standard internal hexagonal wrench. The top of the mounting base (41) is fixedly connected with several positioning posts (8) in a ring shape, and the top of the positioning posts (8) extends into the interior of the magnetic block (42).

7. A pen with an impact-resistant tip according to claim 1, characterized in that: The total weight of the detachable counterweight structure (4) can be selected as 3g, 4g or 5g, and the counterweight block (45) can be disassembled individually.

8. A pen tip anti-impact gel pen according to claim 1, characterized in that: The end of the pen cap (3) near the opening is made of a slightly elastic material, and the opening of the pen cap (3) is provided with a connecting protrusion (9) integrally formed therewith. Both ends of the pen barrel (1) are provided with connecting grooves (10) that cooperate with the connecting protrusions (9).

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