Built-in inverted gun bolt refill discharging and collecting structure of gel pen
Through the built-in inverted gun bolt core output and core receptacle structure, the problems of complex core output structure of neutral pen and difficulty in modifying the pen holder are solved, and sliding force balance and low-cost mass production are achieved.
Patent Information
- Application Number
- CN202422403878.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing neutral pen core structure is complex and difficult to process with metal materials. The built-in structure cannot be decoupled from the pen holder, which is not conducive to the modification of the pen holder.
It adopts a built-in inverted bolt core-extraction and core-extraction structure, including a pen body, a return spring, a core-extraction assembly and a shaft nail assembly. The double bolt sliding is achieved through the L-shaped bolt and the shaft nail, and the tenon structure is decoupled, which is conducive to mechanical processing.
It achieves sliding stress balance, has low failure rate, is easy to modify the pen holder, reduces processing costs, and is suitable for mass production.
Smart Images
Figure CN223161554U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gel pens, in particular to a built-in inverted bolt core ejection and retraction structure of a gel pen. Background Art
[0002] A gel pen, also known as a signature pen, fountain pen or ballpoint pen, is a widely used writing instrument that uses ink as a writing medium. The ink is drawn out by the ball inside the pen tip, and the pen body is usually made of plastic.
[0003] The gel pens in the prior art have a mature core ejection method, and most of them are press-type core ejection. However, since the core ejection structure of the existing gel pens is complex in shape and mostly made of plastic, it is produced by injection molding and is difficult to be processed with metal materials. Secondly, the built-in structure of the traditional gel pens cannot be decoupled from the pen body itself, which is not conducive to pen body modification and cannot bring good news to pen body modification users. Now, a built-in inverted bolt core ejection and core collection structure of the gel pens is proposed to solve the above problems. Utility Model Content
[0004] In order to solve the problems raised in the above background technology, the utility model provides a built-in inverted bolt core ejection and retraction structure for a gel pen, which solves the problem that the core ejection structure of a gel pen is complex in shape and is not conducive to pen holder modification.
[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a gel pen with a built-in inverted bolt core ejection and retraction structure, comprising a pen body, a return spring movably connected to the interior of the pen body, a core retraction assembly movably connected to the top of the pen body, and a shaft pin assembly movably connected to the interior of the core retraction assembly;
[0006] The retracting core assembly includes an inverted bolt column, L-shaped bolts are symmetrically opened on both sides of the inverted bolt column, and a threaded head is fixedly connected to the top of the inverted bolt column;
[0007] The shaft nail assembly comprises a clamping shaft, one end of the clamping shaft is fixedly connected with a mother nail, and the other end of the clamping shaft is movably clamped with a child nail.
[0008] Preferably, the pen body comprises a pen barrel, the bottom end of the pen barrel is threadedly connected to the pen head, and the interior of the pen barrel is detachably connected to the pen core.
[0009] Preferably, the outer wall of the pen barrel is symmetrically provided with clamping holes that are adapted to the size of the clamping shaft.
[0010] Preferably, the pen core is located above the return spring and is extrusion-connected to the return spring.
[0011] Preferably, the outer wall of the inverted bolt is movably connected to the interior of the pen barrel.
[0012] Preferably, the outer wall of the card shaft is movably clamped with the pen barrel and the inverted bolt column respectively.
[0013] Preferably, the mother nail and the son nail have the same structure.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] The present utility model is provided with structures such as a core retracting and extending assembly, a shaft nail assembly, etc. The pen body is designed with a double-bolt structure inside. Through the shaft nail assembly and the L-shaped bolt, double-bolt sliding is realized. Whether it is during core extension or core retraction, the symmetrical sliding of the mother nail and the son nail makes the sliding force more balanced, with a low failure rate. The built-in double-bolt structure decouples the complex tenon structure from the pen barrel itself, which is beneficial to the modification of the pen barrel. It is a boon for users who modify the pen barrel, making this gel pen extremely conducive to mechanical processing and low-cost mass production. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic diagram of the core retracting structure of the present utility model;
[0017] Figure 2 is a schematic diagram of the core extending structure of the present utility model;
[0018] Figure 3 is a schematic diagram of the positional relationship structure of the core retracting and extending assembly of the present utility model;
[0019] Figure 4 is a schematic diagram of the positional relationship structure of the shaft nail assembly of the present utility model.
[0020] In the figure: 1. Pen body; 101. Pen barrel; 102. Pen tip; 103. Pen core; 2. Return spring; 3. Core retracting and extending assembly; 301. Inverted bolt column; 302. L-shaped bolt; 303. Threaded head; 4. Shaft nail assembly; 401. Card shaft; 402. Mother nail; 403. Son nail. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] As Figures 1 to 4 shown, the present utility model provides an internal inverted bolt core extending and core retracting structure for a gel pen, including a pen body 1, a return spring 2 is movably connected inside the pen body 1, a core retracting and extending assembly 3 is movably clamped at the top of the pen body 1, and a shaft nail assembly 4 is movably clamped inside the core retracting and extending assembly 3;
[0023] The core receiving and ejecting component 3 includes an inverted bolt column 301, with L-shaped bolts 302 symmetrically arranged on both sides of the inverted bolt column 301, and a threaded head 303 fixedly connected to the top end of the inverted bolt column 301;
[0024] The shaft nail component 4 includes a clamping shaft 401, with a female nail 402 fixedly connected to one end of the clamping shaft 401, and a male nail 403 movably clamped to the other end of the clamping shaft 401;
[0025] Adopting the above scheme: By inserting the clamping shaft 401 through the pen barrel 101 into the L-shaped bolt 302 and installing the male nail 403 on the clamping shaft 401, when ejecting the core, the L-shaped bolt 302 is pressed by the threaded head 303 and the threaded head 303 is rotated, so that the arc groove on the horizontal side of the L-shaped bolt 302 is clamped with the clamping shaft 401, and the refill 103 presses the return spring 2, and the return spring 2 is compressed and shortened. When retracting the core, the threaded head 303 is rotated in the reverse direction. Due to the elastic force of the return spring 2, the refill 103 is bounced upward, so that the vertical groove of the L-shaped bolt 302 is clamped with the clamping shaft 401, and the return spring 2 is reset, and the refill 103 is successfully retracted. Through structures such as the core receiving and ejecting component 3 and the shaft nail component 4, the gel pen is extremely conducive to mechanical processing and is conducive to low-cost mass production.
[0026] As Figure 1 and Figure 2 shown, the pen body 1 includes a pen barrel 101, the bottom end of the pen barrel 101 is threadedly connected with a pen tip 102, and a refill 103 is detachably connected inside the pen barrel 101;
[0027] The outer wall of the pen barrel 101 is symmetrically provided with clamping holes adapted to the size of the clamping shaft 401;
[0028] The refill 103 is located above the return spring 2 and is in pressing connection with the return spring 2;
[0029] Adopting the above scheme: By setting structures such as the core receiving and ejecting component 3 and the shaft nail component 4, the pen body 1 has a double-bolt structure design inside. Through the shaft nail component 4 and the L-shaped bolt 302, double-bolt sliding is realized. Whether during core ejection or core retraction, the symmetrical sliding of the female nail 402 and the male nail 403 makes the sliding force more balanced, with a low failure rate. The built-in double-bolt structure decouples the complex tenon structure from the pen barrel itself, which is beneficial to the modification of the pen barrel and is a boon for users who modify the pen barrel. The gel pen is extremely conducive to mechanical processing and is conducive to low-cost mass production.
[0030] As Figures 2 to 4 shown, the outer wall of the inverted bolt column 301 is movably sleeved inside the pen barrel 101;
[0031] The outer wall of the clamping shaft 401 is respectively movably clamped with the pen barrel 101 and the inverted bolt column 301;
[0032] The structures of the female nail 402 and the male nail 403 are the same;
[0033] Adopting the above solution: The design of each part is convenient for the existing domestic machining methods, with low processing costs, facilitating mass production. The core ejection structure is easy to disassemble and clean, being convenient, hygienic, having no vulnerable parts, long service life, and the tenon structure being decoupled from the pen barrel itself, facilitating the modification of the pen barrel.
[0034] The working principle and usage process of the present utility model are as follows:
[0035] First, after the pen body 1 is installed, insert the clamping shaft 401 through the pen barrel 101 into the L-shaped bolt 302, install the sub-nail 403 on the clamping shaft 401. When ejecting the core, press and rotate the threaded head 303 through the threaded head 303, so that the arc groove on the horizontal side of the L-shaped bolt 302 is clamped with the clamping shaft 401. At this time, the pen core 103 presses the return spring 2, and the return spring 2 compresses and shortens;
[0036] When retracting the core, rotate the threaded head 303 in the reverse direction. At this time, due to the elastic force of the return spring 2, the pen core 103 is bounced upward, so that the vertical groove of the L-shaped bolt 302 is clamped with the clamping shaft 401. At this time, the return spring 2 is reset, and the pen core 103 retracts the core successfully, completing the operation.
[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0038] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. The built-in reverse bolt core-out and core-in structure of a gel pen, comprising a pen body (1), characterized in that: A return spring (2) is movably connected inside the pen body (1), and a retractable core assembly (3) is movably clamped at the top of the pen body (1), and a shaft nail assembly (4) is movably clamped inside the retractable core assembly (3); The retractable core assembly (3) includes an inverted bolt column (301), L-shaped bolts (302) are symmetrically arranged on both sides of the inverted bolt column (301), and a threaded head (303) is fixedly connected to the top end of the inverted bolt column (301); The shaft nail assembly (4) includes a clamping shaft (401), a female nail (402) is fixedly connected to one end of the clamping shaft (401), and a male nail (403) is movably clamped at the other end of the clamping shaft (401).
2. The built-in reverse bolt core-out and core-in structure of the neutral pen according to claim 1, characterized in that: The pen body (1) includes a pen barrel (101), a pen tip (102) is threadedly connected to the bottom end of the pen barrel (101), and a pen refill (103) is detachably connected inside the pen barrel (101).
3. The built-in inverted bolt ejection and retraction structure of a gel pen according to claim 2, characterized in that: Clamping holes adapted to the size of the clamping shaft (401) are symmetrically arranged on the outer wall of the pen barrel (101).
4. The built-in reverse bolt core-out and core-in structure of the gel pen according to claim 2, characterized in that: The pen refill (103) is located above the return spring (2) and is in pressing connection with the return spring (2).
5. The built-in reverse bolt core-out and core-in structure of the gel pen according to claim 1, characterized in that: The outer wall of the inverted bolt column (301) is movably sleeved inside the pen barrel (101).
6. The built-in reverse bolt core-out and core-in structure of the gel pen according to claim 1, characterized in that: The outer wall of the clamping shaft (401) is movably clamped with the pen barrel (101) and the inverted bolt column (301) respectively.
7. The built-in reverse bolt core-out and core-in structure of the neutral pen according to claim 1, wherein: The structures of the female nail (402) and the male nail (403) are the same.