Automatic rebounding type anti-falling cover device structure for pen holder of gel pen

By using the protrusions and wedge-shaped rings inside the shell, combined with the scale lines and grip ring to adjust the force, the problem of excessive friction and easy damage to the clip in the anti-cap-fall device of the ballpoint pen is solved, achieving a stable cap and a comfortable pen grip experience.

CN223686228UActive Publication Date: 2025-12-19NINGBO JIASEN STATIONERY CO LTD
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Patent Information

Application Number
CN202520244160.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-12-19
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

Existing automatic rebound cap-prevention devices for ballpoint pens are difficult to insert or remove when friction is too high. Clip-type fixation can easily damage clothing and poses a risk of the cap falling off, exposing the pen refill, affecting writing smoothness, and causing the cap to be lost.

Method used

The pen uses a combination of protrusions, wedge rings, and springs inside the shell. The protrusions press against the sliding wedge rings to achieve a limiting and fixing effect. Combined with the scale lines, it is easy to operate and prevents the pen cap from falling off. The grip ring is adjusted by the spring to provide a comfortable feel and accommodate different user habits.

Benefits of technology

It effectively prevents the pen cap from accidentally falling off, provides a stable writing experience, meets the pen grip habits of different users, ensures the safety of the pen refill, and improves the comfort of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of gel pens, and discloses an automatic springback type anti-falling cover device structure for a gel pen holder, which comprises a shell and a pen cover, a plurality of bumps are annularly distributed and fixedly connected on the inner wall of the pen cover, a fixing groove is arranged in the shell, a plurality of springs I are fixedly connected on the inner wall of the fixing groove, and the springs I are fixedly connected on the outer wall of the shell. A first wedge-shaped ring is fixedly connected to the outer portion of the first spring, a plurality of through grooves are formed in the first wedge-shaped ring, a fixing ring is fixedly connected to the outer portion of the shell, a connecting ring is fixedly connected to the bottom of the shell, and a holding rod is fixedly connected to the bottom of the connecting ring. And an adjusting assembly for conveniently adjusting the grip strength of fingers is arranged in the holding rod. According to the pen cap fixing device, by means of matching of the protruding block, the wedge-shaped ring and the spring, the pen cap is stably fixed, accidental falling is effectively prevented, use safety is guaranteed, and the pen cap can be taken down more conveniently by means of alignment operation of the scale marks.
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Description

TECHNICAL FIELD

[0001] The utility model relates to neutral pen technical field especially neutral pen pen holder uses automatic rebound formula anti -dropping cap device structure. BACKGROUND

[0002] The pen barrel is an important component of the neutral pen, and the pen barrel is a holding part of the neutral pen, mainly used for facilitating people to hold and write, and can also protect the internal components such as the pen core, and generally is designed to meet the ergonomic requirements to provide comfortable writing experience, and also has various appearance designs to meet the individual needs of different users.

[0003] Generally composed of a pen barrel body, a cap, a spring or an elastic element, a connecting component and a positioning component, the spring or the elastic element is generally installed at the connecting part of the pen barrel and the cap, the connecting component is used to connect the cap and the pen barrel and guide the movement of the cap, and the positioning component can ensure the cap to rebound and fix at a specific position, and works by relying on the elastic force storage and release of the spring or the elastic element, when the cap is pressed into the pen barrel, the spring or the elastic element is deformed to store energy, and when the external force disappears, the spring restores to its original state to release energy and push the cap to automatically rebound to the initial position, thereby preventing the cap from accidentally falling off.

[0004] In the prior art, part of the neutral pen pen holder uses an automatic rebound type anti-dropping cap device structure, which increases the friction between the cap and the pen barrel, but this way has poor effect in actual use, and the cap is difficult to plug and unplug due to excessive friction, affecting the use experience, and part of the neutral pen uses a clip to fix the cap, but the clip is easy to damage clothes, and there is still a risk of cap falling during placement, thereby exposing the pen core, which is easy to get dirty and dry ink, affecting the writing fluency, and also causing the cap to be lost, so that the neutral pen cannot be properly protected, therefore the neutral pen pen holder uses an automatic rebound type anti-dropping cap device structure to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a neutral pen pen holder uses an automatic rebound type anti-dropping cap device structure, aiming at improving the problem that the pen core is exposed and easy to get dirty and dry ink, affecting the writing fluency in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The application discloses a structure of an automatic rebound type anti-cap-falling device for a neutral pen holder, which comprises a shell and a cap.

[0008] As a further description of the above technical scheme:

[0009] The adjusting assembly comprises an adjusting groove, a plurality of springs two are fixedly connected to the inner wall of the adjusting groove, a wedge-shaped ring two is fixedly connected to the outer portion of the springs two, and a holding ring is fixedly connected to the outer portion of the wedge-shaped ring two.

[0010] As a further description of the above technical scheme:

[0011] The inner portion of the shell is provided with a limiting groove, and the outer portion of the protrusion is in contact with the inner wall of the limiting groove.

[0012] As a further description of the above technical scheme:

[0013] The outer portion of the protrusion is in contact with the inner wall of the through groove, and the outer portion of the wedge-shaped ring one is slidably connected to the inner portion of the fixed groove.

[0014] As a further description of the above technical scheme:

[0015] The top portion of the shell is fixedly connected with a connecting ring, and a plurality of ventilation openings are formed in the inner portion of the connecting ring.

[0016] As a further description of the above technical scheme:

[0017] The inner portion of the holding rod is provided with a moving groove, and the outer portion of the holding ring is slidably connected to the inner portion of the moving groove.

[0018] As a further description of the above technical scheme:

[0019] The outer portion of the shell and the outer portion of the cap are respectively provided with scale lines, and the bottom portion of the holding rod is fixedly connected with a connecting block.

[0020] As a further description of the above technical scheme:

[0021] The outer portion of the wedge-shaped ring two is slidably connected to the inner portion of the adjusting groove, and the outer portion of the adjusting groove is formed in the inner portion of the holding rod.

[0022] The application has the following beneficial effects:

[0023] 1. The utility model discloses a convex block is extruded to wedge ring one, and wedge ring one is extruded to spring one, and slide in fixed groove, and the elastic action of spring one is pushed outwards to wedge ring one, and the convex block is fixed with the limiting groove and completes the limiting, which realizes the cooperation of convex block, wedge ring and spring, reaches the stable fixed of the pen cover, effectively prevents accidental drop, guarantees the safe use, and with the scale line alignment operation, makes the pen cover more convenient to take down.

[0024] 2. The utility model discloses a grip ring moves in the removal groove through stress, drives wedge ring two to spring two extrusion, and spring two occurs elastic deformation, and the intensity of the force that the finger is applied to the grip ring adjusts the grip ring position, thereby changes the intensity feeling when holding the pen, thereby realized the spring elasticity maintaining grip ring position, satisfies different user writing habits, guarantees the stable adjustment process, provides comfortable long time pen holding experience for the user. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the three -dimensional schematic view of the automatic rebound type anti -dropping cap device structure for neutral pen barrel that the utility model provides;

[0026] Figure 2 It is the structure schematic view of the connecting ring of the automatic rebound type anti -dropping cap device structure for neutral pen barrel that the utility model provides;

[0027] Figure 3 It is the structure schematic view of the connecting ring of the automatic rebound type anti -dropping cap device structure for neutral pen barrel that the utility model provides;

[0028] Figure 4 It is the structure schematic view of the convex block of the automatic rebound type anti -dropping cap device structure for neutral pen barrel that the utility model provides

[0029] Figure 5 It is Figure 2 The enlarged view of A place;

[0030] Figure 6 It is Figure 3 The enlarged view of B place.

[0031] Legend: 1, shell;2, pen cover;3, convex block;4, fixed groove;5, spring one;6, wedge ring one;7, through groove;8, fixed ring;9, grip rod;10, adjustment groove;11, spring two;12, wedge ring two;13, grip ring;14, removal groove;15, limiting groove;16, scale line;17, connecting ring;18, connecting ring;19, vent;20, connecting block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0033] With reference to Figure 1 , Figure 2 and Figure 4 , the utility model provides an embodiment: neutral pen holder is with automatic rebound formula anti -drop cover device structure, including casing 1 and cap 2, casing 1 provides the installation space and the protection function for internal element, cap 2 provides protection for the pen core when not using, the inner wall annular distribution fixed connection of cap 2 has a plurality of lugs 3, lug 3 is cooperated with limit groove 15, completes the limit fixed, prevents its cap 2 accidental drop;

[0034] With reference to Figure 2 and Figure 5 , the inside of casing 1 is provided with fixed groove 4, and the fixed groove 4 provides a fixing and supporting effect for the spring one 5, a plurality of spring one 5 is fixedly connected to the inner wall of the fixed groove 4, the spring one 5 has an elastic effect, and provides elastic support for the wedge ring one 6, so that the wedge ring one 6 can be elastically reset after the stress is over, the outside of the spring one 5 is fixedly connected with the wedge ring one 6, the wedge ring one 6 can make the lug 3 extrude the wedge ring one 6 when the cap 2 is placed, so that the lug 3 can pass through, a plurality of through grooves 7 are formed in the inside of the wedge ring one 6, the through grooves 7 can make the lug 3 pass through the lug 3 when the cap 2 is removed, a fixed ring 8 is fixedly connected to the outside of the casing 1, the fixed ring 8 provides support for the lug 3 after the lug 3 is clamped into the limit groove 15, a connecting ring 17 is fixedly connected to the bottom of the casing 1, the connecting ring 17 plays a role of connecting the casing 1 and the grip rod 9, the bottom of the connecting ring 17 is fixedly connected with the grip rod 9, and the grip rod 9 is a place where fingers are held, and an adjusting assembly is formed in the inside of the grip rod 9.

[0035] With reference to Figure 1 , Figure 3 and Figure 6 , the adjusting assembly comprises an adjusting groove 10, the adjusting groove 10 provides an installation space for the internal adjusting assembly, a plurality of spring two 11 is fixedly connected to the inner wall of the adjusting groove 10, the spring two 11 has an elastic effect and can provide elastic support for the wedge ring two 12, the outside of the spring two 11 is fixedly connected with the wedge ring two 12, and the wedge ring two 12 plays a role of connecting the grip ring 13 and the spring two 11, the outside of the wedge ring two 12 is fixedly connected with the grip ring 13, and the grip ring 13 is a place where fingers hold the pen holder.

[0036] With reference to Figures 2 to 4The inside of the shell 1 is provided with a limiting groove 15, and the protrusion 3 cooperates with the limiting groove 15 to complete the limiting and fixing. The inner wall of the limiting groove 15 is in contact with the outer part of the protrusion 3, and the protrusion 3 is limited and fixed by the limiting groove 15. The outer part of the protrusion 3 is in contact with the inner wall of the through groove 7, and the protrusion 3 can pass through the through groove 7 to take off the pen cover 2. The outer part of the wedge-shaped ring one 6 is slidingly connected to the inside of the fixed groove 4, and the fixed groove 4 provides the wedge-shaped ring one 6 with the guiding and limiting effect. The top of the shell 1 is fixedly connected with the connecting ring 18, which provides the ventilation opening 19 with a space. The inside of the connecting ring 18 is provided with a plurality of ventilation openings 19, which are used for ventilation. The inside of the handle 9 is provided with a moving groove 14, which is used for moving the holding ring 13 under the action of external force. The outer part of the holding ring 13 is slidingly connected to the inside of the moving groove 14, and the moving groove 14 provides the holding ring 13 with the guiding and limiting effect.

[0037] The outer part of the shell 1 and the outer part of the pen cover 2 are respectively provided with scale lines 16. The scale line 16 on the outer part of the shell 1 is aligned with the position of the through groove 7, and the scale line 16 on the outer part of the pen cover 2 is aligned with the position of the rotating protrusion 3, which is convenient for the user to take off the pen cover 2. The bottom of the handle 9 is fixedly connected with the connecting block 20, which provides the bottom of the pen core with fixation. The outer part of the wedge-shaped ring two 12 is slidingly connected to the inside of the adjusting groove 10, and the adjusting groove 10 provides the wedge-shaped ring two 12 with the guiding and limiting effect. The outer part of the adjusting groove 10 is provided in the inside of the handle 9, and the handle 9 provides the adjusting groove 10 with a space.

[0038] Working principle: when the pen cover 2 is needed to be covered, the pen cover 2 is sleeved on the shell 1, the protrusion 3 is extruded to the wedge-shaped ring one 6, the wedge-shaped ring one 6 is extruded to the spring one 5, and slides in the fixed groove 4, so that the protrusion 3 can pass through. When the protrusion 3 reaches the position of the limiting groove 15, the spring one 5 is elastically pushed to slide the wedge-shaped ring one 6 outward, the protrusion 3 is clamped into the limiting groove 15 to complete the limiting and fixing, and prevent the pen cover 2 from being accidentally taken off. When the pen cover 2 is taken off, the scale line 16 on the outer part of the pen cover 2 is aligned with the scale line 16 on the outer part of the shell 1, and the pen cover 2 is pulled out, so that the protrusion 3 can move through the through groove 7, and the pen cover 2 can be separated from the outside of the shell 1.

[0039] When the neutral pen is used, the holding ring 13 is moved in the moving groove 14 under the action of external force, the wedge-shaped ring two 12 is extruded to the spring two 11, and the spring two 11 is elastically deformed. The force applied by the fingers to the holding ring 13 adjusts the position of the holding ring 13, so as to change the feeling of force when holding the pen. The spring two 11 maintains the position of the holding ring 13 to provide a comfortable pen holding experience for the user and ensure the stability of the adjusting process.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A structure of automatic rebound type cap falling prevention device for neutral pen holder, comprising a shell (1) and a pen cap (2), characterized in that: The inner wall of the pen cover (2) is annularly and fixedly connected with a plurality of protrusions (3), the inside of the shell (1) is provided with a fixed groove (4), the inner wall of the fixed groove (4) is fixedly connected with a plurality of springs (5), the outside of the spring (5) is fixedly connected with a wedge-shaped ring (6), the inside of the wedge-shaped ring (6) is provided with a plurality of through grooves (7), the outside of the shell (1) is fixedly connected with a fixed ring (8), the bottom of the shell (1) is fixedly connected with a connecting ring (17), the bottom of the connecting ring (17) is fixedly connected with a handle (9), and the inside of the handle (9) is provided with an adjusting assembly for adjusting the finger gripping force.

2. The automatic rebound type cap drop prevention device structure for a ballpoint pen barrel according to claim 1, characterized by: The adjusting assembly comprises an adjusting groove (10), the inner wall of the adjusting groove (10) is fixedly connected with a plurality of springs (11), the outside of the spring (11) is fixedly connected with a wedge-shaped ring (12), and the outside of the wedge-shaped ring (12) is fixedly connected with a handle ring (13).

3. The automatic rebound type cap drop prevention device structure for a ballpoint pen barrel according to claim 1, characterized by: The inside of the shell (1) is provided with a limiting groove (15), and the inner wall of the limiting groove (15) is in contact with the outside of the protrusion (3).

4. The automatic rebound type cap drop prevention device structure for a ballpoint pen barrel according to claim 1, characterized by: The outside of the protrusion (3) is in contact with the inner wall of the through groove (7), and the outside of the wedge-shaped ring (6) is slidably connected in the inside of the fixed groove (4).

5. The automatic rebound type cap drop prevention device structure for a ballpoint pen barrel according to claim 1, characterized by: The top of the shell (1) is fixedly connected with a connecting ring (18), and the inside of the connecting ring (18) is provided with a plurality of ventilation holes (19).

6. The automatic rebound type cap drop prevention device structure for a refill of a gel ink roller ball pen according to claim 2, wherein: The inside of the handle (9) is provided with a moving groove (14), and the outside of the handle ring (13) is slidably connected in the inside of the moving groove (14).

7. The automatic rebound type cap drop prevention device structure for a refill of a gel ink roller ball pen according to claim 1, wherein: The outside of the shell (1) and the outside of the pen cover (2) are respectively provided with scale lines (16), and the bottom of the handle (9) is fixedly connected with a connecting block (20).

8. The automatic rebound type cap drop prevention device structure for a refill of a gel ink roller ball pen according to claim 2, wherein: The outside of the wedge-shaped ring (12) is slidably connected in the inside of the adjusting groove (10), and the outside of the adjusting groove (10) is provided in the inside of the handle (9).