Woodworking pen

By designing a detachable inner pen component and outer shell structure, the pen-sharpening function is integrated and can be operated flexibly in narrow spaces, solving the problems of limited functionality and operation of traditional woodworking pens, and improving work efficiency and continuity.

CN224476755UActive Publication Date: 2026-07-10CIXI ZHANGQI PINGPING PEN FACTORY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CIXI ZHANGQI PINGPING PEN FACTORY
Filing Date
2025-08-14
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional woodworking pens have limited functionality, require the carrying of a separate sharpening tool, and are limited in flexibility when operating in confined spaces.

Method used

Design a detachable inner pen component and outer shell structure. The inner pen component is inserted into the outer shell via a snap and slot. The outer shell integrates a pencil sharpening structure. The inner pen component can be used independently in narrow spaces. The outer shell has a pencil sharpening function, realizing multi-functional integration and convenient operation.

Benefits of technology

It achieves multi-functional integration, improves operational flexibility and work continuity in confined spaces, reduces the cumbersomeness of carrying tools, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

A woodworking pen includes an inner pen component and a hollow outer shell. The inner pen component has a writing end and an independent writing function. The inner shell has a channel for the inner pen component to pass through. The buckles on the outer periphery of the inner pen component and the slots on the inner wall of the outer shell cooperate to achieve detachable insertion. The writing end of the inner pen component is exposed at the second end of the outer shell. The outer shell also integrates a pencil sharpening structure. Through the detachable design of the inner pen component and the outer shell, the inner pen component can be used alone in narrow working spaces to improve operational flexibility. The pencil sharpening structure integrated into the outer shell eliminates the need to carry an additional pencil sharpener, avoids work interruption, and improves work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of woodworking tools, specifically to a multifunctional woodworking pen. Background Technology

[0002] Woodworking pens are key tools used for marking and tracing in woodworking, and their performance directly affects the precision and efficiency of wood processing. Traditional woodworking pens typically only have a single marking function. However, in actual work, workers often need to use woodworking pens for long-distance marking and markers for detailed marking simultaneously. They also need to carry additional tools to sharpen the pens, making the tools cumbersome to carry. This not only increases the cost of use but also reduces the continuity of work.

[0003] In the existing technology, there are two types of related solutions:

[0004] Firstly, the "Easy-to-Use Woodworking Pen" disclosed in Chinese Utility Model Patent Application No. 202420691996.4 (Authorization Announcement No. CN222116412U) integrates the functions of a woodworking pen and a marker pen through a detachable combination structure of a large pen cap, a small pen cap, and a pen core tube. At the same time, it improves portability and grip stability through a pen clip and anti-slip texture. However, it does not integrate a pen-sharpening function, and the function switching depends on the overall rotation of the pen core tube, which limits the flexibility of operation in narrow spaces.

[0005] Secondly, the "Deep Hole Marking Pencil" disclosed in Chinese Utility Model Patent Application No. 202022331148.7 (Authorization Announcement No. CN213291823U) integrates the pencil sharpening function with the pencil body by setting a detachable sharpening mechanism (pen cap form, with built-in blade and through hole) on the pencil barrel, eliminating the need to carry an extra sharpening tool. However, the connection between the sharpening mechanism and the pencil barrel relies on plug-in and locking blocks, which can easily become loose with frequent disassembly. Furthermore, the overall structure of the pencil body is not optimized for narrow spaces, making it difficult to meet the marking needs of fine parts such as deep holes and wood crevices.

[0006] Therefore, how to solve the problems of insufficient stability of pen-sharpening function integration and limited operation in narrow spaces while integrating multiple functions has become an urgent technical problem to be solved in this field. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a woodworking pen that integrates a pencil-sharpening function and can be flexibly switched between regular and narrow spaces, in view of the above-mentioned technical status.

[0008] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: the woodworking pen, comprising...

[0009] The internal pen component has a writing end and an independent writing function;

[0010] The outer shell is hollow and has openings at both ends, with an internal channel for the inner pen assembly to pass through;

[0011] The outer periphery of the inner pen assembly is provided with a buckle, and the inner wall of the outer shell is provided with a corresponding slot that matches the buckle;

[0012] The inner pen assembly is inserted from the first end of the outer shell and can be detachably fitted into the outer shell through the cooperation of the buckle and the slot, and the writing end of the inner pen assembly is exposed at the second end of the outer shell.

[0013] The outer shell also integrates a pencil-sharpening structure.

[0014] To optimize the specific structural form of the buckle and slot, and to ensure stable fit and convenient disassembly of the inner pen assembly and the outer shell, preferably, the slot is an annular groove formed on the inner wall of the outer shell and adjacent to the first end of the outer shell; the buckle is a protrusion on the outer peripheral surface of the inner pen assembly, and at least two protrusions are provided, each protrusion being distributed circumferentially at intervals on the outer peripheral surface of the inner pen assembly and corresponding to and fitting the annular groove.

[0015] In order to provide axial restraint for the inner pen assembly in the assembled state and prevent it from being over-inserted into the housing, preferably, the outer periphery of the inner pen assembly is provided with a radially protruding flange located above the buckle; when the buckle is adapted to the slot, the bottom of the flange abuts against the first end face of the housing.

[0016] To facilitate disassembly of the inner pen assembly and improve stability during grip, preferably, the flange extends into a neck on the side away from the writing end; when the buckle is fitted into the slot, the neck is exposed at the first end of the outer shell, and the outer periphery of the neck is provided with a first anti-slip texture.

[0017] To achieve the integration of the pencil sharpening structure, ensure the stability and reliability of the sharpening function, and form an integrated structure with the outer shell, preferably, the pencil sharpening structure is an external pencil sharpener assembly, and the blade holder of the external pencil sharpener assembly is integrally formed on the outer peripheral surface of the outer shell.

[0018] To increase the portability of the woodworking pen, the functional components on the outer periphery of the shell are arranged in a reasonable manner. At the same time, to avoid the external pencil sharpener assembly from being bumped or interfered with operation due to protrusion or depression, preferably, the outer periphery of the shell is also provided with a pen clip. The pen clip and the external pencil sharpener assembly are arranged at intervals along the circumference of the shell, and the blade holder of the external pencil sharpener assembly is flush with the first end face of the shell.

[0019] To enhance the gripping stability of the pen clip and prevent the woodworking pen from slipping accidentally, preferably, a serrated anti-slip structure is formed between the inner side of the pen clip and the outer peripheral surface of the outer shell.

[0020] In order to enable the inner pen assembly to have an automatic lead extension function, simplify the operation process, and improve the ease of use, preferably, the inner pen assembly is a mechanical pencil structure, and a pressing head is provided on the side of the neck away from the flange. Pressing the pressing head can drive the pencil lead to extend from the writing end.

[0021] To clarify the internal structure of the inner pen assembly and the connection relationship of each component, ensure the stable implementation of the automatic lead feeding function, and improve the ease of grip and adaptability for operation in narrow spaces, preferably, the inner pen assembly also includes an inner shell and a lead tube. The buckle, flange, and neck are all provided on the inner shell, and the outer peripheral surface of the inner shell is also formed with a second anti-slip texture for easy gripping. The end of the inner shell away from the neck is formed with a narrow section, and the writing end of the inner pen assembly is located at the end of the narrow section away from the neck. The lead tube is built into the inner shell, and the inside of the lead tube forms an inner cavity for accommodating the pencil lead. The lead tube can move axially under the drive of the pressing head to push the pencil lead out from the writing end of the inner pen assembly.

[0022] To improve grip comfort and fit, reduce pen weight, and facilitate observation of internal conditions, the outer shell is preferably tapered at the top and bottom to form a pen-shaped structure that fits the grip, and the lower half of the outer shell is also provided with a hollow section.

[0023] Compared with the prior art, the advantages of this utility model are as follows: By setting an inner pen component with independent writing function and a hollow outer shell with openings at both ends, the inner pen component can be inserted into the channel inside the outer shell, and can be detached and inserted by the cooperation of the buckles on the outer periphery of the inner pen component and the grooves on the inner wall of the outer shell. The writing end of the inner pen component is exposed at the second end of the outer shell, and a pencil sharpening structure is integrated on the outer shell. Since the inner pen component and the outer shell are detachable, when in a narrow working space (such as a gap in wood), the inner pen component can be detached from the outer shell for independent use, which effectively solves the problem of the overall size of the pen body limiting the flexibility of operation and improves the adaptability in special spaces. In addition, the pencil sharpening structure integrated on the outer shell eliminates the need for workers to carry external pencil sharpening tools. When the pencil tip wears out or the pencil tip thickness needs to be adjusted, the worker can operate directly, avoiding work interruption, ensuring the continuity of work, and thus improving work efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of this embodiment;

[0025] Figure 2 This is a schematic diagram of the decomposed state structure of this embodiment;

[0026] Figure 3 This is a cross-sectional structural diagram of this embodiment;

[0027] Figure 4This is a three-dimensional structural diagram of the inner pen component in this embodiment. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] Figures 1-4 The figure shown is the preferred embodiment of this utility model.

[0030] This embodiment discloses a woodworking pen, such as Figure 1 As shown, it includes an inner pen component 1 and a shell 2. It aims to solve the problems of existing woodworking pens having limited functionality, requiring an additional pencil sharpener, and having limited operational flexibility in confined spaces. Through the detachable design of the inner pen component and the shell, the integrated pencil sharpening structure in the shell, and the elongated design of the inner shell, it achieves the effects of multiple functions, continuous operation, and adaptability to various usage scenarios.

[0031] The specific structures of the inner pen assembly 1 and the outer shell 2 in this embodiment are as follows:

[0032] Inner pen component 1: Refer to 2 to Figure 4 As shown, the inner pen assembly 1 has a writing end 1a, which has an independent writing function. A buckle 3 is protruding on its outer peripheral surface. The buckle 3 consists of at least two protrusions distributed circumferentially. The outer peripheral surface of the inner pen assembly 1 also has a radially protruding flange 6, which is located above the buckle 3. A neck 7 extends from the side of the flange 6 away from the writing end 1a. The outer periphery of the neck 7 is provided with a first anti-slip texture 7a. The first anti-slip texture 7a adopts a multiple protrusion setting method, which can enhance the hand friction when the inner pen assembly 1 is pulled out.

[0033] In this embodiment, the inner pen assembly 1 is a mechanical pencil structure. The mechanical pencil structure is a conventional structure and belongs to the prior art, so it will not be described in detail here. Specifically, it includes an inner shell 11 and a lead tube 12. The buckle 3, flange 6 and neck 7 are all integrally formed on the inner shell 11. The outer peripheral surface of the inner shell 11 is also formed with a second anti-slip texture 11b for easy gripping. The second anti-slip texture 11b adopts a multiple protrusion setting method, which can also enhance the hand friction when operating the inner pen assembly 1 alone, especially suitable for working conditions where the hands are covered with wood chips or sweat. The end of the inner shell 11 away from the neck 7 forms a narrow and elongated section 11a with a reduced outer diameter. The writing end 1a is located at the end of the narrow and elongated section 11a away from the neck 7. The lead tube 12 is built inside the inner housing 11, and an inner cavity 12a is formed inside to accommodate the pencil lead 10. The lead tube 12 can move axially. A pressing head 9 is provided on the side of the neck 7 away from the flange 6. The pressing head 9 protrudes from the end of the neck 7 and is connected to the lead tube 12 in a transmission manner.

[0034] Outer shell 2: Reference Figures 1 to 3As shown, the outer shell 2 has a hollow structure with openings at both ends, and an internal channel 2a for the inner pen assembly 1 to pass through; the inner wall of the outer shell 2 has a matching slot 4 corresponding to the buckle 3, the slot 4 is an annular groove, formed on the inner wall of the outer shell 2 and adjacent to the first end 2b of the outer shell 2; the outer shell 2 has a tapered shape that is larger at the top and smaller at the bottom, forming a pen-shaped structure that is suitable for holding, and its lower half also has a hollow part 2d.

[0035] The outer periphery of the outer shell 2 is provided with a pencil sharpening structure 5, which is an external pencil sharpener assembly. The blade holder 5a of the external pencil sharpener assembly is integrally formed with the outer shell 2, and the blade holder 5a of the external pencil sharpener assembly is flush with the first end 2b end face of the outer shell 2. The outer periphery of the outer shell 2 is also provided with a pencil clip 8, which is arranged at intervals with the external pencil sharpener assembly along the circumference of the outer shell 2, and a serrated anti-slip structure 8a is formed between the inner side of the pencil clip 8 and the outer periphery of the outer shell 2.

[0036] The connection method between the inner pen component 1 and the outer shell 2 is as follows:

[0037] The inner pen assembly 1 is inserted into the channel 2a from the first end 2b of the outer shell 2, and is engaged with the slot 4 (annular groove) by the buckle 3 (protrusion) to achieve detachable insertion; at this time, the bottom of the flange 6 abuts against the end face of the first end 2b of the outer shell 2, the neck 7 is exposed from the first end 2b of the outer shell 2, and the writing end 1a of the inner pen assembly 1 is exposed from the second end 2c of the outer shell 2. The specific mating structure of the protrusion and the annular groove can be found in [reference]. Figure 3 As shown.

[0038] The specific method of using the woodworking pen in this embodiment is as follows:

[0039] 1. Normal working state: The inner pen component 1 and the outer shell 2 are assembled into one piece by the buckle 3 and the slot 4. The worker can hold the outer shell 2 to draw lines and mark. The tapered design of the outer shell 2 improves the grip comfort. If it is necessary to sharpen the pencil, the external pencil sharpener component on the outer shell 2 can be used directly without additional tools. Moreover, the blade holder 5a of the external pencil sharpener component is flush with the end face of the first end 2b of the outer shell 2, avoiding the problem of bumping or interference caused by the protruding blade holder 5a.

[0040] 2. Working in confined spaces: The inner pen assembly 1 can be pulled out for independent use by holding the first anti-slip texture 7a of the neck 7. When using the inner pen assembly 1 alone, the second anti-slip texture 11b located on the outer periphery of the inner shell 11 can be held for writing operations. The long and narrow section 11a of the inner shell 11 can also reach into narrow spaces such as wood crevices, improving operational flexibility.

[0041] 3. Automatic lead ejection operation: Press the pressing head 9 at the end of the neck 7 to drive the lead tube 12 to move axially, and push the pencil lead 10 in the inner cavity 12a out from the writing end 1a to realize automatic lead replenishment.

[0042] 4. Portability and Fixation: The woodworking pen can be fixed in a pocket, tool bag, or other location by the pen clip 8. The serrated anti-slip structure 8a prevents it from slipping. The hollow part 2d of the outer shell 2 reduces the overall weight and makes it easy to observe the installation status of the inner pen component 1.

[0043] This embodiment effectively solves the problems of traditional woodworking pens being single-function, cumbersome to carry, and limited in operation in narrow spaces by using a detachable design of the inner pen component and outer shell, integrating a pencil sharpening function, and a narrow section structure adapted to confined spaces, thereby improving work efficiency and flexibility.

[0044] It should be noted that in the description of this embodiment, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A woodworking pen, characterized in that: include The inner pen component (1) is provided with a writing end (1a) and has an independent writing function; The outer shell (2) is hollow and has openings at both ends, and has a channel (2a) inside for the inner pen assembly (1) to pass through; The outer periphery of the inner pen assembly (1) is provided with a buckle (3), and the inner wall of the outer shell (2) is provided with a corresponding slot (4) that is adapted to the buckle (3); The inner pen assembly (1) is inserted from the first end (2b) of the outer shell (2) and can be detachably inserted into the outer shell (2) through the mutual cooperation of the buckle (3) and the slot (4), and the writing end (1a) of the inner pen assembly (1) is exposed at the second end (2c) of the outer shell (2); The outer shell (2) also integrates a pencil sharpening structure (5).

2. The woodworking pen according to claim 1, characterized in that: The slot (4) is an annular groove, which is formed on the inner wall of the outer shell (2) and adjacent to the first end (2b) of the outer shell (2); The buckle (3) is a protrusion on the outer peripheral surface of the inner pen assembly (1). There are at least two protrusions, and each protrusion is distributed circumferentially on the outer peripheral surface of the inner pen assembly (1) and is adapted to the annular groove.

3. The woodworking pen according to claim 1, characterized in that: The outer periphery of the inner pen assembly (1) is provided with a radially protruding flange (6) located above the buckle (3); With the buckle (3) fitted into the slot (4), the bottom of the flange (6) abuts against the first end (2b) end face of the housing (2).

4. The woodworking pen according to claim 3, characterized in that: The flange (6) extends a neck (7) on the side away from the writing end (1a); With the buckle (3) adapted to the slot (4), the neck (7) is exposed at the first end (2b) of the outer shell (2), and the outer periphery of the neck (7) is provided with a first anti-slip texture (7a).

5. The woodworking pen according to any one of claims 1 to 4, characterized in that: The pencil sharpening structure (5) is an external pencil sharpener assembly, and the blade holder (5a) of the external pencil sharpener assembly is integrally formed on the outer peripheral surface of the outer shell (2).

6. The woodworking pen according to claim 5, characterized in that: The outer periphery of the outer shell (2) is also provided with a pen clip (8), the pen clip (8) and the external pencil sharpener assembly are arranged at intervals along the circumference of the outer shell (2), and the blade holder (5a) of the external pencil sharpener assembly is flush with the end face of the first end (2b) of the outer shell (2).

7. The woodworking pen according to claim 6, characterized in that: A serrated anti-slip structure (8a) is formed between the inner side of the pen clip (8) and the outer peripheral surface of the outer shell (2).

8. The woodworking pen according to claim 4, characterized in that: The inner pen assembly (1) is a mechanical pencil structure. A pressing head (9) is provided on the side of the neck (7) away from the flange (6). Pressing the pressing head (9) can drive the pencil lead (10) to extend from the writing end (1a).

9. The woodworking pen according to claim 8, characterized in that: The inner pen assembly (1) also includes an inner shell (11) and a pen core tube (12). The buckle (3), flange (6) and neck (7) are all provided on the inner shell (11). The outer peripheral surface of the inner shell (11) is also formed with a second anti-slip texture (11b) for easy gripping. The inner shell (11) has a narrow section (11a) at one end away from the neck (7), and the writing end (1a) of the inner pen assembly (1) is located at the end of the narrow section (11a) away from the neck (7); The lead tube (12) is built inside the inner housing (11). The lead tube (12) forms an inner cavity (12a) for accommodating the pencil lead (10). The lead tube (12) can move axially under the drive of the pressing head (9) to push the pencil lead (10) out from the writing end (1a) of the inner pen assembly (1).

10. The woodworking pen according to claim 1, characterized in that: The outer shell (2) has a tapered shape that is larger at the top and smaller at the bottom, forming a pen-shaped structure that is suitable for holding. The lower half of the outer shell (2) also has a hollowed-out part (2d).