A plug-in assembly ballpoint pen barrel

Abstract

This utility model discloses a plug-in assembly ballpoint pen barrel, including a shell with a pen cap installed at the upper end of the shell, and a plug-in mechanism. The plug-in mechanism includes a fixing ring, a telescopic column, a limiting seat, and a separation component. The fixing ring is located on the upper outer side of the shell, and the lower left and right ends of the inner wall of the shell are provided with limiting seats through the telescopic ends of the telescopic column. The limiting seats are installed in conjunction with the fixing ring. This plug-in assembly ballpoint pen barrel is guided by scale lines. It only requires one vertical plug-in step to achieve plug-in assembly and self-fixation of the ballpoint pen barrel under the action of spring elements and inclined guide elements. When the ballpoint pen barrel is separated later, it also only requires one step to achieve self-separation of the ballpoint pen barrel plug-in assembly under the squeezing action of the corresponding conical surface and inclined surface inside the component and the compression and reset action of the spring element. The plug-in assembly and separation operation of the ballpoint pen barrel is relatively simple and quick.

Description

Technical Field

[0001] This utility model relates to the field of ballpoint pen technology, specifically to a plug-in assembled ballpoint pen barrel. Background Technology

[0002] The pen barrel refers to the external grip structure of a ballpoint pen, primarily responsible for providing writing comfort and protecting internal core components (such as the refill and spring). In the prior art, patent publication number CN 216761277 U discloses a plug-in ballpoint pen barrel structure, including a protective cover, a protective shell, and a fixing cover. The protective cover is connected to one end of the protective shell, and the fixing cover is connected to the other end of the protective shell. The protective cover includes a protective base, a protective shell, a pressing component, and two locking blocks. The protective shell is connected to the protective cover. The pressing component passes through the protective base and is installed inside the protective shell. The two locking blocks are respectively connected to the side walls of the pressing component. The diameter of the protective base is larger than the diameter of the protective shell, and the diameter of the protective shell is smaller than the diameter of the protective shell. A groove matching the locking blocks is formed on the inner wall of one end of the protective shell. The protective shell extends into the protective shell and is connected to the protective shell through the cooperation of the locking blocks and the grooves. The advantages of this utility model are: simple connection method, convenient installation and disassembly, long service life, and the device allows for the plug-in connection of the protective cover and the protective shell. During assembly, the worker first needs to press the two locking blocks simultaneously to bring them closer together. By reducing the lateral distance between the two locking blocks, it is ensured that the two locking blocks can be vertically inserted into the protective shell at the same time. Then, while pressing the two locking blocks, the worker vertically inserts the protective cover into the protective shell. After the locking blocks are fully inserted into the protective shell, since the device lacks a vertical alignment guide element between the locking blocks and the slots inside the protective shell, the worker needs to rely on their own assembly experience and visual observation of the slots to assemble and insert the protective shell and the protective cover of the ballpoint pen. At the same time, when separating the ballpoint pen barrel later, the worker also needs to press the locking blocks inward to make them penetrate into the inner diameter of the protective shell while manually performing the insertion and separation operation. There is room for improvement in the ease of insertion, assembly and separation of the ballpoint pen barrel. Therefore, we propose a plug-in assembly ballpoint pen barrel. Utility Model Content

[0003] The technical problem this invention aims to solve is to overcome existing defects and provide a plug-in assembly ballpoint pen barrel. This device uses scale lines for guidance, and only one vertical plug-in step is needed to achieve the plug-in assembly and self-fixation of the ballpoint pen barrel under the action of spring elements and inclined guide elements. When the ballpoint pen barrel is disassembled later, only one step is needed to achieve the self-separation of the plug-in assembly under the squeezing action of the corresponding conical and inclined surfaces within the elements and the compression and reset action of the spring elements. The plug-in assembly and disassembly operation of the ballpoint pen barrel is relatively simple and quick, which can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plug-in assembled ballpoint pen barrel, including a shell, a pen cap installed at the upper end of the shell, and a plug-in mechanism;

[0005] The insertion mechanism includes a fixing ring, a telescopic column, a limiting seat, and a separation component. The fixing ring is located on the upper outer side of the outer shell. Limiting seats are provided at both ends of the lower inner wall of the outer shell through the telescopic ends of the telescopic column. The limiting seats are installed in conjunction with the fixing ring. A separation component is provided between the outer shell, the fixing ring, and the pen cap. The separation component is installed in conjunction with the limiting seat. This device is guided by scale lines. Only one vertical insertion step is needed to achieve the insertion, assembly, and self-fixation of the ballpoint pen barrel under the action of the spring element and the inclined guide element. When the ballpoint pen barrel is inserted, assembled, and separated later, only one step is needed to achieve the self-separation of the ballpoint pen barrel insertion, assembly, and separation under the squeezing action of the corresponding conical and inclined surfaces inside the component and the compression and reset action of the spring element. The insertion, assembly, and separation operation of the ballpoint pen barrel is relatively simple and quick.

[0006] Furthermore, the insertion mechanism also includes a spring, which is respectively disposed between the limiting seat and the pen cap. The spring is movably connected to the outer end of the adjacent telescopic column. The spring compression and reset force enables the limiting seat to automatically reset after being pressed and moved.

[0007] Furthermore, the separation component includes a conical ring, which is slidably connected to the upper outer side of the outer shell. The conical ring is installed in conjunction with a limiting seat. When the ballpoint pen barrel is inserted and assembled, it is separated by pushing the conical ring upward.

[0008] Furthermore, the separation assembly also includes a fixed base, a second telescopic column, a second spring, a contact seat, and an annular seat. The fixed base is respectively disposed at the front and rear ends of the upper side of the fixed ring. The upper side of the fixed base is provided with contact seats through symmetrically distributed second telescopic columns and second springs. The second springs are movably sleeved with the outer ends of adjacent second telescopic columns. An annular seat is provided at the lower end of the inner wall of the pen cap. The annular seat is installed in conjunction with the contact seat and the outer shell. The spring compression and reset elasticity facilitates the automatic separation and movement of the pen cap from the outer shell when the ballpoint pen barrel is inserted, assembled, and separated later.

[0009] Furthermore, a guide slope is provided on the lower edge of the limiting seat near the center of the outer shell. The guide slope facilitates the insertion and assembly of the ballpoint pen barrel.

[0010] Furthermore, the pen cap has four evenly distributed ring-shaped pen refill holders at its inner top, with rubber pads between the four pen refill holders to limit the pen refills filled inside the ballpoint pen barrel.

[0011] Furthermore, an annular groove is provided at the lower outer side of the outer shell, and a rubber sleeve is fitted inside the annular groove to improve the grip and anti-slip properties of the pen when the user holds the ballpoint pen.

[0012] Furthermore, the lower outer end of the pen cap and the upper outer end of the outer shell are provided with scale lines to guide the insertion, assembly, and disassembly of the ballpoint pen barrel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This plug-in assembled ballpoint pen barrel has the following advantages:

[0014] When using the plug-in assembly ballpoint pen barrel, the device is guided by the scale lines. Simply insert the pen cap vertically downwards along the upper outer side of the outer shell. This step allows the ballpoint pen barrel to be plugged in and self-secured by the spring element and the inclined guide element. When separating the plugged-in assembly of the ballpoint pen barrel later, simply push the conical ring upwards. The plugged-in assembly of the pen shell and the pen cap will be self-separated by the pressing action of the conical surface and the inclined surface, as well as the compression and reset action of the spring element. This makes the plugging-in assembly and separation of the ballpoint pen barrel operation relatively simple and quick. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0017] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0019] Figure 5 This is an enlarged structural diagram of section B of the present invention.

[0020] In the diagram: 1. Outer shell, 2. Pen cap, 3. Insertion mechanism, 31. Fixing ring, 32. Telescopic column one, 33. Spring one, 34. Limiting seat, 35. Separation assembly, 351. Conical ring, 352. Fixing seat, 353. Telescopic column two, 354. Spring two, 355. Contact seat, 356. Ring seat, 4. Pen refill limiting seat, 5. Rubber pad, 6. Rubber sleeve, 7. Scale line. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-5 This embodiment provides a technical solution: a plug-in assembled ballpoint pen barrel, including a shell 1, a pen cap 2 installed on the upper end of the shell 1, four evenly distributed annular pen refill retaining seats 4 on the inner top of the pen cap 2, and rubber pads 5 between the four pen refill retaining seats 4. An annular groove is formed on the lower outer side of the shell 1, and a rubber sleeve 6 is fitted inside the annular groove. Scale lines 7 are provided on the lower outer side of the pen cap 2 and the upper outer side of the shell 1. When assembling the ballpoint pen barrel, first insert the external pen refill into the shell 1, then... The pen cap 2 is vertically aligned with the outer shell 1 by aligning the two scale lines 7 vertically. The pressure extensibility of the rubber pad 5 fills the vertical gap between the upper end of the external pen refill installed in the device and the pen refill limiting seat 4, so as to prevent vertical relative movement between the external pen refill installed in the device and the ballpoint pen barrel when writing with the ballpoint pen. The rubber sleeve 6 increases the contact friction between the user's hand and the ballpoint pen barrel when holding the ballpoint pen barrel, so as to prevent the hand from slipping. It also includes a plug-in mechanism 3.

[0023] The insertion mechanism 3 includes a fixing ring 31, a telescopic post 32, a limiting seat 34, and a separation component 35. The fixing ring 31 is located on the upper outer side of the outer shell 1. Limiting seats 34 are located at both ends of the lower inner wall of the outer shell 1 via the telescopic ends of the telescopic post 32. The limiting seats 34 are installed in conjunction with the fixing ring 31. A separation component 35 is located between the outer shell 1, the fixing ring 31, and the pen cap 2. The separation component 35 is installed in conjunction with the limiting seat 34. The insertion mechanism 3 also includes a spring 33, which is located between the limiting seat 34 and the pen cap 2. Each spring 33 is movably sleeved with the outer end of the adjacent telescopic post 32. The separation component 35 includes a conical ring 351, which is slidably connected to the upper outer side of the outer shell 1. The conical ring 351 cooperates with the limiting seat 34. The installation and separation assembly 35 also includes a fixed base 352, a second telescopic column 353, a second spring 354, a contact seat 355, and an annular seat 356. The fixed base 352 is respectively disposed at the front and rear ends of the upper side of the fixed ring 31. The upper side of the fixed base 352 is provided with a contact seat 355 through symmetrically distributed second telescopic columns 353 and second springs 354. The second springs 354 are movably sleeved with the outer ends of adjacent second telescopic columns 353. The lower end of the inner wall of the pen cap 2 is provided with an annular seat 356. The annular seat 356 is installed in conjunction with the contact seat 355 and the outer shell 1. The lower end of the limiting seat 34 is provided with a guide slope on the edge near the center of the outer shell 1. The pen cap 2 is inserted vertically from top to bottom into the upper outer side of the outer shell 1. As the upper outer side of the outer shell 1 gradually penetrates into the pen cap 2... Inside, the guide slope of the inner limiting seat 34 of the pen cap 2 presses against the upper outer edge of the fixing ring 31. The limiting seat 34, under pressure from the guide slope, moves away from the center of the outer casing 1, thus avoiding contact. The telescopic end of the telescopic column 32 and the spring 33 retract. Simultaneously, the lower side of the annular seat 356 inside the pen cap 2 gradually presses against the upper side of the contact seat 355. The contact seat 355 is pressed, and the telescopic end of the telescopic column 353 and the spring 354 retract. When the pen cap 2 moves vertically downwards to its top, where the pen refill limiting seat 4 presses against the upper end of the pen refill inside the device, the vertical pressing contact between the limiting seat 34 and the fixing ring 31 separates. Subsequently, the compression and reset force of the spring 33 causes the limiting seat 34 to move closer to the center of the outer casing 1. The pen cap 2 and the outer shell 1 are positioned by the contact engagement between the upper plane of the limiting seat 34 and the lower plane of the fixing ring 31. Simultaneously, the inner ring of the ring seat 356 slides against the upper outer side of the outer shell 1, preventing horizontal misalignment between the pen cap 2 and the outer shell 1. The entire ballpoint pen barrel can be assembled and fixed by a single insertion step. When assembling and separating the entire ballpoint pen barrel, simply rotate the pen cap 2 horizontally to align the two scale lines 7 vertically. Then, push the conical ring 351 vertically upwards along the upper outer side of the outer shell 1. After the conical ring 351 moves upwards to a certain extent, its outer conical surface presses against the guide slope of the limiting seat 34. The limiting seat 34, under pressure, automatically moves to avoid this pressure using the same principle.When the limiting seat 34 moves to the point where its upper surface contacts and separates from the lower surface of the fixing ring 31, the compression and reset force of the spring 354 causes the contact seat 355 to push the ring seat 356 to move vertically upward automatically. The ring seat 356 then causes the pen cap 2 to move upward and pop out automatically. Thus, the separation of the ballpoint pen barrel assembly can be achieved by simply pushing the conical ring 351 upward. Since the conservative lifespan of ordinary compression springs is 50,000 to 500,000 cycles, considering the labor and parts costs of spring replacement, the ballpoint pen barrel can be directly discarded when the internal springs age. This device is guided by the scale line 7, and only one vertical insertion is needed to achieve the insertion, assembly, and self-fixation of the ballpoint pen barrel under the action of the spring element and the inclined guide element. Similarly, when separating the ballpoint pen barrel assembly later, only one step is needed to achieve self-separation of the ballpoint pen barrel assembly under the squeezing action of the corresponding conical and inclined surfaces within the element and the compression and reset action of the spring element. The insertion, assembly, and separation of the ballpoint pen barrel is relatively simple and quick.

[0024] The working principle of the plug-in assembly ballpoint pen barrel provided by this utility model is as follows: When assembling the ballpoint pen barrel, firstly, the outer pen refill is inserted into the outer shell 1. Then, the pen cap 2 is vertically aligned with the outer shell 1 by aligning the two scale lines 7 vertically. Then, the pen cap 2 is vertically inserted from top to bottom into the upper outer side of the outer shell 1. As the upper outer side of the outer shell 1 gradually penetrates into the pen cap 2, the guide slope of the limiting seat 34 inside the pen cap 2 presses against the upper outer edge of the fixing ring 31. The limiting seat 34 moves away from the center of the outer shell 1 due to the pressure of the guide slope, thereby avoiding a misalignment. The telescopic end of the telescopic column 32 and the spring 33 retract, and at the same time, the lower side of the annular seat 356 inside the pen cap 2 gradually... When the upper side of the contact seat 355 is pressed, the telescopic end of the telescopic column 353 and the spring 354 retract. When the pen cap 2 moves vertically downward to its top, the pen refill limiting seat 4 presses against the upper end of the pen refill inside the device. At this time, the vertical pressing contact between the limiting seat 34 and the fixing ring 31 separates. Then, through the compression and reset force of the spring 33, the limiting seat 34 moves towards the center of the outer shell 1. The upper plane of the limiting seat 34 and the lower plane of the fixing ring 31 make contact and lock, thereby achieving the installation limitation between the pen cap 2 and the outer shell 1. At the same time, the inner ring of the ring seat 356 slides against the upper outer side of the outer shell 1, thereby preventing horizontal misalignment between the pen cap 2 and the outer shell 1. For example, the entire ballpoint pen barrel can be assembled and fixed to the outer shell 1 through a single insertion step. The pressure-bearing extensibility of the rubber pad 5 fills the vertical gap between the upper end of the external pen refill installed inside the device and the pen refill limiting seat 4, preventing vertical relative movement between the external pen refill and the entire ballpoint pen barrel when writing. The rubber sleeve 6 increases the contact friction between the user's hand and the ballpoint pen barrel when holding the pen, preventing hand slippage. When assembling and separating the entire ballpoint pen barrel, simply rotate the pen cap 2 horizontally to align the two scale lines 7 vertically, and then push the cone ring 351 vertically upward along the upper outer side of the outer shell 1. After a certain period of time, the outer conical surface of the pen body is pressed into contact with the guide slope of the limiting seat 34. The limiting seat 34 is pressed and moves automatically to avoid contact through the same principle. When the limiting seat 34 moves to the point where its upper surface contacts and separates from the lower surface of the fixing ring 31, the compression and reset force of the spring 354 causes the contact seat 355 to push the ring seat 356 to move vertically upward automatically. The ring seat 356 drives the pen cap 2 to move upward and pop out automatically. Thus, the separation of the ballpoint pen barrel can be achieved by pushing the conical ring 351 upward. Since the conservative life of ordinary compression springs is 50,000 to 500,000 times, and considering the labor cost and parts cost of spring replacement, the ballpoint pen barrel can be directly discarded when the internal springs age.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A plug-assembled ball-point pen barrel comprising a housing (1), a cap (2) being mounted to an upper end of the housing (1), characterized in that: It also includes a plug-in mechanism (3); The insertion mechanism (3) includes a fixing ring (31), a telescopic column (32), a limiting seat (34), and a separation component (35). The fixing ring (31) is located on the upper outer side of the outer shell (1). The lower left and right sides of the inner wall of the outer shell (1) are provided with limiting seats (34) through the telescopic ends of the telescopic column (32). The limiting seats (34) are installed in cooperation with the fixing ring (31). A separation component (35) is provided between the outer shell (1), the fixing ring (31), and the pen cap (2). The separation component (35) is installed in cooperation with the limiting seat (34).

2. A plug-assembled ballpoint pen barrel according to claim 1, wherein: The insertion mechanism (3) also includes a spring (33), which is respectively disposed between the limiting seat (34) and the pen cap (2). The spring (33) is movably connected to the outer end of the adjacent telescopic column (32).

3. The plug-in assembly ballpoint pen barrel according to claim 1, characterized in that: The separation assembly (35) includes a conical ring (351), which is slidably connected to the upper outer side of the outer shell (1) and is installed in conjunction with the limiting seat (34).

4. The plug-in assembly type ballpoint pen barrel according to claim 1, characterized in that: The separation assembly (35) further includes a fixed seat (352), a second telescopic column (353), a second spring (354), a contact seat (355), and an annular seat (356). The fixed seat (352) is respectively located at the front and rear ends of the upper side of the fixed ring (31). The upper side of the fixed seat (352) is provided with a contact seat (355) through the symmetrically distributed second telescopic column (353) and second spring (354). The second spring (354) is movably sleeved with the outer end of the adjacent second telescopic column (353). The lower end of the inner wall of the pen cap (2) is provided with an annular seat (356). The annular seat (356) is installed in conjunction with the contact seat (355) and the outer shell (1).

5. The plug-in assembly type ballpoint pen barrel according to claim 1, characterized in that: The lower end of the limiting seat (34) is provided with a guide slope on the side edge near the center of the outer shell (1).

6. The plug-in assembly type ballpoint pen barrel according to claim 1, characterized in that: The pen cap (2) has four evenly distributed pen refill holders (4) on its inner top, and a rubber pad (5) is provided between the four pen refill holders (4).

7. The plug-in assembly type ballpoint pen barrel according to claim 1, characterized in that: The outer lower end of the outer shell (1) is provided with an annular groove, and a rubber sleeve (6) is sleeved inside the annular groove.

8. The plug-in assembly ballpoint pen barrel according to claim 1, characterized in that: The lower outer end of the pen cap (2) and the upper outer end of the outer shell (1) are both provided with scale lines (7).

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