Composite structure penholder with bamboo-joint-shaped anti-skid holding part

By using a composite structure design of a bamboo-shaped anti-slip grip, combined with the design of an arc surface and friction grooves, the problem of uneven grip in traditional pen barrels is solved, thereby improving grip stability and comfort and adapting to the needs of different users.

CN224130756UActive Publication Date: 2026-04-17YANGZHOU JIANGHAI BRUSH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANGZHOU JIANGHAI BRUSH CO LTD
Filing Date
2025-05-09
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The traditional pen grip design results in uneven pressure on the fingers, leading to fatigue during prolonged writing. Furthermore, it is difficult to adjust to the user's hand size and grip habits, affecting writing comfort and drawing quality.

Method used

A composite pen barrel with a bamboo-shaped anti-slip grip was designed. The combination of arc-shaped surface, friction groove and raised groove enhances friction and divides the force-bearing surface. Combined with an adjustable threaded transmission structure, it allows for flexible adjustment of the grip position.

Benefits of technology

It improves grip stability and comfort, reduces hand fatigue, prevents the pen from slipping, adapts to the grip needs of different users, and enhances the writing experience and drawing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a composite structure penholder with a bamboo-joint-shaped anti-skidding holding part, and relates to the technical field of penholders. Comprising a supporting structure, the supporting structure comprises a straight barrel rod, an insertion plug is inserted into the outer wall of the top of the straight barrel rod, a movable structure is slidably connected to the outer wall of the straight barrel rod, a holding structure is fixedly connected to the outer wall of the movable structure, and an adjusting structure is rotatably connected to the outer wall of the straight barrel rod; the holding structure comprises a bamboo joint cylinder, an arc-shaped face is arranged on the outer wall of the bamboo joint cylinder, a friction groove is formed in the outer wall of the bamboo joint cylinder through the arc-shaped face, a protruding groove is formed in the outer wall of the bamboo joint cylinder, an insertion groove is formed in the wall of the bamboo joint cylinder, the arc-shaped face is attached to fingers, the friction groove increases friction force, the protruding groove divides a stress face, and the stress face is inserted into the insertion groove. A round three-face stress design is formed, no protruding feeling exists when the pen is held, stability is effectively enhanced, hand fatigue is reduced, and the purposes that the pen holder is prevented from sliding down during writing and writing experience is improved are achieved.
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Description

Technical Field

[0001] This utility model relates to the field of pen barrel technology, specifically to a composite structure pen barrel with a bamboo-shaped anti-slip grip. Background Technology

[0002] In daily office work, study, and professional drawing scenarios, pens are frequently used tools, and their grip comfort and adaptability affect writing efficiency and experience. Most traditional pen barrels use a single flat or simple curved surface design for the grip area, resulting in uneven pressure on the fingers and fatigue during prolonged writing. Although some pen barrels have anti-slip textures, the obvious protrusions can put pressure on the fingers, affecting grip comfort. The pen barrel is still prone to slipping when the hands are sweaty or when writing with heavy force. In addition, the grip position of traditional pen barrels is fixed and it is difficult to adjust according to the user's hand size and grip habits. This can lead to discomfort for some users and may cause hand joint strain with long-term use. In professional drawing and painting work, users need to hold the pen for a long time, and the grip defects of traditional pen barrels will reduce the drawing effect. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a composite pen barrel with a bamboo-shaped anti-slip grip. The grip structure design enhances anti-slip and comfort, while the adjustable structure allows for flexible adjustment of the grip position, effectively solving the problems of existing pen barrels and meeting the different usage needs of users.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a composite pen barrel with a bamboo-shaped anti-slip grip, comprising a support structure, the support structure including a straight cylindrical rod, a plug inserted into the outer wall of the top of the straight cylindrical rod, a movable structure slidably connected to the outer wall of the straight cylindrical rod, a grip structure fixedly connected to the outer wall of the movable structure, and an adjustment structure rotatably connected to the outer wall of the straight cylindrical rod; the grip structure includes a bamboo-shaped tube, the outer wall of the bamboo-shaped tube having an arc-shaped surface, a friction groove formed through the arc-shaped surface, a raised groove formed through the outer wall of the bamboo-shaped tube, and an insertion groove formed in the wall of the bamboo-shaped tube. The grip structure, by conforming to the fingers through the arc-shaped surface, increasing friction through the friction groove, and dividing the force-bearing surface through the raised groove, forms a rounded three-sided force-bearing design, providing a grip without any raised feeling, effectively enhancing stability, reducing hand fatigue, and preventing the pen barrel from slipping during writing.

[0007] Preferably, the support structure further includes a limiting block, the outer wall of which is fixedly connected to the side wall of the straight cylinder rod, a limiting groove is formed in the wall of the straight cylinder rod, the movable structure includes a connecting ring, a threaded tube is fixedly connected to the top end of the connecting ring, a limiting frame is fixedly connected to the bottom end of the connecting ring, an insertion strip is fixedly connected to the bottom end of the limiting frame, and an anti-detachment ring is fixedly connected to the bottom end of the insertion strip.

[0008] Preferably, the outer wall of the insertion strip is fixedly connected to the inner wall of the bamboo joint tube through the insertion groove, the outer wall of the bottom of the bamboo joint tube is fixedly connected to the top of the anti-detachment ring, the inner side wall of the bamboo joint tube is slidably connected to the outer wall of the straight tube rod, the outer wall of the limiting frame is slidably connected to the outer wall of the limiting block, and the inner side wall of the threaded tube and the inner side wall of the connecting ring are both slidably connected to the outer side wall of the straight tube rod.

[0009] Preferably, the adjustment structure includes a rotating cylinder, with a limiting ring formed on the inner side wall of the rotating cylinder. The limiting ring has a threaded groove in its wall, and the outer wall of the limiting ring is slidably connected to the outer wall of the straight cylinder rod through the limiting groove. The outer side wall of the straight cylinder rod is rotatably connected to the inner side wall of the rotating cylinder, and the outer wall of the rotating cylinder is threadedly connected to the outer wall of the threaded tube through the threaded groove. By using threaded transmission and limiting design, rotating the rotating cylinder can drive the grip structure to slide up and down, which can flexibly adjust the pen grip position according to different users' hand sizes, thereby adapting to different users' grip habits.

[0010] (III) Beneficial Effects

[0011] This invention provides a composite structure pen barrel with a bamboo-joint-shaped anti-slip grip. It offers the following advantages:

[0012] (I) The pen barrel is designed with a grip structure that uses an arc-shaped surface to fit the fingers, friction grooves to increase friction, and raised grooves to divide the force-bearing surface, forming a rounded three-sided force-bearing design. The grip is smooth and has no raised feeling, which effectively enhances stability, reduces hand fatigue, prevents the pen barrel from slipping during writing, and improves the writing experience.

[0013] (ii) The pen barrel is equipped with an adjustment structure that utilizes threaded transmission and limit design. Rotating the rotating cylinder can drive the grip structure to slide up and down, which can flexibly adjust the pen grip position according to the hand size of different users, thereby adapting to the grip habits of different users and meeting different grip needs during use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded structural diagram of the entire utility model;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0017] Figure 4 This is a schematic diagram of the gripping structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the adjustment structure of this utility model.

[0019] In the diagram: 1. Support structure; 2. Movable structure; 3. Grip structure; 4. Adjustment structure; 5. Insert plug; 11. Straight rod; 12. Limiting block; 13. Limiting groove; 21. Connecting ring; 22. Threaded tube; 23. Limiting frame; 24. Insertion bar; 25. Anti-detachment ring; 31. Bamboo joint tube; 32. Arc-shaped surface; 33. Friction groove; 34. Protruding groove; 35. Insertion groove; 41. Rotating cylinder; 42. Limiting ring; 43. Threaded groove. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 This utility model provides a technical solution: a composite pen barrel with a bamboo-joint-shaped anti-slip grip, including a support structure 1, a straight cylindrical rod 11, a plug 5 inserted into the outer wall of the top of the straight cylindrical rod 11, a movable structure 2 slidably connected to the outer wall of the straight cylindrical rod 11, a grip structure 3 fixedly connected to the outer wall of the movable structure 2, and an adjustment structure 4 rotatably connected to the outer wall of the straight cylindrical rod 11. The straight cylindrical rod 11 in the support structure 1 serves as the main body, and the plug 5 at the top is used to seal the top of the pen barrel to prevent the pen refill from leaking out. In case of detachment or foreign object entry, the limiting block 12 and limiting groove 13 on the outer wall provide a basis for the installation and movement of the movable structure 2 and the adjusting structure 4. The movable structure 2 slides on the outer wall of the straight tube 11 through the connecting ring 21. The threaded tube 22 at the top, the limiting frame 23 at the bottom, the insertion strip 24 and the anti-detachment ring 25 work together. The insertion strip 24 is inserted into the insertion groove 35 of the bamboo tube 31 in the holding structure 3 to fix the bamboo tube 31 to the movable structure 2. The anti-detachment ring 25 supports the bottom of the bamboo tube 31 to prevent it from falling off.

[0022] The grip structure 3 includes a bamboo tube 31. The outer wall of the bamboo tube 31 has an arc-shaped surface 32. The outer wall of the bamboo tube 31 has a friction groove 33 through the arc-shaped surface 32. The outer wall of the bamboo tube 31 has a raised groove 34. An insertion groove 35 is formed in the wall of the bamboo tube 31. The bamboo tube 31 of the grip structure 3 forms a rounded three-sided force-bearing surface through the arc-shaped surface 32, the friction groove 33 and the raised groove 34, so that there is no protrusion when the user holds it. The arc-shaped surface 32 conforms to the contour of the fingers. The friction groove 33 increases the friction area with the fingers, thereby increasing the surface friction. The raised groove 34 further divides the three sides through the concave and convex structure, enhancing the grip stability and reducing hand fatigue.

[0023] The support structure 1 also includes a limiting block 12. The outer wall of the limiting block 12 is fixedly connected to the side wall of the straight rod 11. A limiting groove 13 is opened in the wall of the straight rod 11. The movable structure 2 includes a connecting ring 21. A threaded tube 22 is fixedly connected to the top end of the connecting ring 21. A limiting frame 23 is fixedly connected to the bottom end of the connecting ring 21. An insertion strip 24 is fixedly connected to the bottom end of the limiting frame 23. An anti-detachment ring 25 is fixedly connected to the bottom end of the insertion strip 24.

[0024] The outer wall of the insertion strip 24 is fixedly connected to the inner wall of the bamboo tube 31 through the insertion groove 35. The outer wall of the bottom of the bamboo tube 31 is fixedly connected to the top of the anti-detachment ring 25. The inner side wall of the bamboo tube 31 is slidably connected to the outer wall of the straight rod 11. The outer wall of the limiting frame 23 is slidably connected to the outer wall of the limiting block 12. The inner side wall of the threaded tube 22 and the inner side wall of the connecting ring 21 are both slidably connected to the outer side wall of the straight rod 11.

[0025] The adjusting structure 4 includes a rotating cylinder 41. A limiting ring 42 is provided on the inner side wall of the rotating cylinder 41. A threaded groove 43 is provided in the wall of the limiting ring 42. The outer wall of the limiting ring 42 is slidably connected to the outer wall of the straight cylinder rod 11 through the limiting groove 13. The outer side wall of the straight cylinder rod 11 is rotatably connected to the inner side wall of the rotating cylinder 41. The outer wall of the rotating cylinder 41 is threadedly connected to the outer wall of the threaded tube 22 through the threaded groove 43. The limiting ring 42 on the inner wall of the rotating cylinder 41 is sleeved on the limiting groove 13 of the straight cylinder rod 11 to realize the rotational connection between the rotating cylinder 41 and the straight cylinder rod 11. The threaded groove 43 of the rotating cylinder 41 is threadedly engaged with the threaded tube 22 of the movable structure 2. When the rotating cylinder 41 is rotated, the movable structure 2 can slide up and down along the outer wall of the straight cylinder rod 11 through the threaded transmission and the limiting action of the limiting block 12 on the limiting frame 23, thereby adjusting the position of the gripping structure 3.

[0026] In use, the composite structure pen barrel with the bamboo-joint anti-slip grip features a straight cylindrical rod 11 in the support structure 1 as the main body. The top plug 5 is used to seal the top of the pen barrel to prevent the pen refill from falling out and foreign objects from entering. The limiting block 12 and limiting groove 13 on the outer wall provide a basis for the installation and movement of the movable structure 2 and the adjustment structure 4. The movable structure 2 slides on the outer wall of the straight cylindrical rod 11 through the connecting ring 21. The threaded tube 22 at the top, the limiting bracket 23 at the bottom, the insertion strip 24, and the anti-detachment ring 25 work together. The insertion strip 24 is inserted into the insertion groove 35 of the bamboo-joint tube 31 in the grip structure 3. The bamboo tube 31 is fixed to the movable structure 2, and the anti-detachment ring 25 supports the bottom of the bamboo tube 31 to prevent it from falling off. During writing, the bamboo tube 31 of the grip structure 3 forms a rounded three-sided force-bearing surface through the arc surface 32, friction groove 33, and raised groove 34, so that there are no protrusions when the user holds it. The arc surface 32 conforms to the contour of the fingers, the friction groove 33 increases the friction area with the fingers, thereby increasing the surface friction, and the raised groove 34 further divides the three sides through the concave and convex structure, enhancing the grip stability, reducing hand fatigue, and preventing the pen from slipping, providing the user with a comfortable and non-slip grip.

[0027] The limiting ring 42 on the inner wall of the rotating cylinder 41 of the adjusting structure 4 is fitted onto the limiting groove 13 of the straight cylinder 11, realizing the rotational connection between the rotating cylinder 41 and the straight cylinder 11. The threaded groove 43 of the rotating cylinder 41 is threadedly engaged with the threaded tube 22 of the movable structure 2. When the rotating cylinder 41 is rotated, the movable structure 2 can slide up and down along the outer wall of the straight cylinder 11 through the threaded transmission and the limiting action of the limiting block 12 on the limiting frame 23, thereby adjusting the position of the grip structure 3 to adapt to the gripping habits and writing needs of different users. For users with different hand sizes, the grip structure 3 can be adjusted up or down to obtain a more comfortable pen grip distance.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite structure pen barrel of a bamboo-shaped anti-slip handle, comprising a support structure (1), the support structure (1) comprises a straight cylinder rod (11), the outer wall of the top of the straight cylinder rod (11) is inserted with an insertion plug (5), characterized in that: The outer wall of the straight rod (11) is slidably connected to a movable structure (2), the outer wall of the movable structure (2) is fixedly connected to a gripping structure (3), and the outer wall of the straight rod (11) is rotatably connected to an adjusting structure (4). The gripping structure (3) includes a bamboo tube (31), the outer wall of the bamboo tube (31) is provided with an arc-shaped surface (32), the outer wall of the bamboo tube (31) is provided with a friction groove (33) through the arc-shaped surface (32), the outer wall of the bamboo tube (31) is provided with a protruding groove (34), and the wall of the bamboo tube (31) is provided with an insertion groove (35).

2. A composite structure pen barrel with a bamboo-shaped anti-slip grip portion according to claim 1, characterized in that: The support structure (1) further includes a limiting block (12), the outer wall of the limiting block (12) is fixedly connected to the side wall outside the straight rod (11), and a limiting groove (13) is opened in the wall of the straight rod (11).

3. A composite structure pen barrel with a bamboo-shaped anti-slip grip portion according to claim 2, characterized in that: The movable structure (2) includes a connecting ring (21), a threaded tube (22) is fixedly connected to the top end of the connecting ring (21), a limit frame (23) is fixedly connected to the bottom end of the connecting ring (21), an insertion strip (24) is fixedly connected to the bottom end of the limit frame (23), and an anti-detachment ring (25) is fixedly connected to the bottom end of the insertion strip (24).

4. A composite structure pen barrel with a bamboo-shaped anti-slip grip portion according to claim 3, characterized in that: The outer wall of the insertion strip (24) is fixedly connected to the inner wall of the bamboo tube (31) through the insertion groove (35). The outer wall of the bottom of the bamboo tube (31) is fixedly connected to the top of the anti-detachment ring (25). The inner side wall of the bamboo tube (31) is slidably connected to the outer wall of the straight rod (11). The outer wall of the limiting frame (23) is slidably connected to the outer wall of the limiting block (12). The inner side wall of the threaded tube (22) and the inner side wall of the connecting ring (21) are both slidably connected to the outer side wall of the straight rod (11).

5. The composite structure of the pen barrel with the bamboo joint-shaped anti-slip holding part according to claim 2, characterized in that: The adjustment structure (4) includes a rotating cylinder (41), and a limiting ring (42) is provided on the side wall inside the rotating cylinder (41). A threaded groove (43) is provided in the wall of the limiting ring (42).

6. A composite structure pen barrel with a bamboo-shaped anti-slip grip portion according to claim 5, characterized in that: The outer wall of the limiting ring (42) is slidably connected to the outer wall of the straight rod (11) through the limiting groove (13). The outer side wall of the straight rod (11) is rotatably connected to the inner side wall of the rotating cylinder (41). The outer wall of the rotating cylinder (41) is threadedly connected to the outer wall of the threaded tube (22) through the threaded groove (43).