Multifunctional ergonomic tool pen

Abstract

The utility model belongs to the technical field of maintenance tools, and particularly relates to a multifunctional ergonomic tool pen. Comprising a pen holder, the pen holder comprises a holder body and a holding middle section arranged on the holder body, three holding faces are distributed on the holding middle section in the circumferential direction, and the periphery of the cross section of the holding middle section is triangular; the pen point is connected to the end, close to the holding middle section, of the pen holder and comprises a clamping piece and a fixing sleeve arranged on the clamping piece in a sleeving mode, a clamping groove is formed in the end, away from the pen holder, of the clamping piece, and the fixing sleeve is used for moving on the clamping piece to enable the clamping groove to be in a clamping state or a loosening state in an extrusion mode; and the refill is detachably mounted at the clamping groove, and the refill clamped at the clamping groove is relatively fixed with the clamping piece. The multifunctional pen has an anti-skid stable holding structure and a modularized refill replacement structure, can realize multifunctional expansion of a single tool, and has the advantages of being comfortable to hold, stable in operation, wide in function expansibility and the like.

Description

Technical Field

[0001] This utility model belongs to the field of maintenance tool technology, and in particular relates to a multifunctional ergonomic pen. Background Technology

[0002] In precision work scenarios such as the repair of delicate instruments, the assembly of electronic equipment, and model making, the tool pen, as a core operating tool, directly affects work efficiency and quality due to its grip stability and operating comfort. Traditional tool pens mostly adopt a cylindrical pen barrel design. This structure is prone to rolling when placed flat or tilted, especially when repairing precision components such as mobile phones and glasses. Accidental slippage of the pen barrel may cause component misalignment or scratches. More importantly, the cylindrical contour of the conventional pen barrel makes linear contact with the finger surface. During prolonged use, the continuous concentrated pressure on the fingertips can easily lead to hand muscle fatigue, which does not conform to ergonomic principles and fails to meet the comfort requirements of professional repair personnel for continuous operation.

[0003] The current methods of fixing the refills in utility pens generally have functional limitations. Most products use a non-removable design, with the refill permanently fixed to the pen barrel through die casting or adhesive bonding. Users cannot replace the refills with different functions such as blades, screwdriver bits, or probes according to their work needs. Even some products offer replaceable structures, but their connection mechanisms often suffer from complex operation and insufficient locking reliability, causing the refill to easily loosen and fall off under pressure. This design flaw not only limits the applicability of utility pens but also forces users to carry multiple specialized tools simultaneously, increasing equipment management costs and contradicting the modern trend of portable work.

[0004] Therefore, there is an urgent need for a multifunctional ergonomic pen that combines a non-slip, stable grip structure with a modular refill mechanism. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a multifunctional ergonomic pen that combines a non-slip, stable grip structure with a modular refill replacement structure. This allows for multifunctional expansion of a single tool and offers advantages such as comfortable grip, stable operation, and wide functional expandability.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-functional ergonomic pen, comprising:

[0008] The pen barrel includes a shaft and a grip section disposed on the shaft. The grip section has three grip surfaces distributed circumferentially, making the outer periphery of the cross-section of the grip section triangular.

[0009] A pen tip is connected to one end of the pen barrel near the middle section of the grip. The pen tip includes a clamping member and a fixing sleeve sleeved on the clamping member. The clamping member has a clamping groove at one end away from the pen barrel. The fixing sleeve is used to move on the clamping member to squeeze the clamping groove into a clamped or relaxed state.

[0010] The pen refill is detachably installed in the clamping groove, and the pen refill clamped in the clamping groove will be fixed relative to the clamping member.

[0011] Furthermore, the outer periphery of the cross-section of the gripping middle section is a rounded triangle.

[0012] Furthermore, the clamping member has at least two clamping pieces that are close to each other at one end away from the pen barrel, and the clamping groove is formed between the clamping pieces.

[0013] Furthermore, the clamping member is provided with a first external thread, and the fixing sleeve is provided with a first internal thread that mates with the first external thread. The fixing sleeve is screwed onto the clamping member and presses the clamping piece to clamp the pen refill.

[0014] Furthermore, the inner diameter of the fixing sleeve gradually decreases at the end away from the pen barrel to form a converging end. When the fixing sleeve is screwed to bring the converging end close to the clamping plate, the clamping plate is squeezed by the converging end and is in a clamped state.

[0015] Optionally, the clamping member is provided with a second external thread, and the pen barrel is provided with a second internal thread that mates with the second external thread at one end near the grip section. The clamping member is detachably installed onto the pen barrel by screwing.

[0016] Furthermore, the clamping piece on the clamping member gradually enlarges at its end to form a protruding end. The outer diameter of the clamping member at the protruding end is larger than the inner diameter of the fixing sleeve. The fixing sleeve, which is fitted onto the clamping member, is located between the edge of the pen barrel and the protruding end.

[0017] Furthermore, the fixing sleeve is provided with anti-slip texture.

[0018] Furthermore, the pen lead is one of the following: a blade, a probe, or a screwdriver bit.

[0019] Furthermore, the shaft and the grip section are integrally formed.

[0020] The beneficial effects of this utility model are:

[0021] This invention achieves stable multi-point contact between the fingers and the pen barrel during gripping by incorporating a gripping middle section with three circumferentially distributed gripping surfaces and a triangular outer cross-section. The compression clamping structure of the clamping component and the fixing sleeve enables quick and easy installation and removal of the pen refill. A segmented clamping plate at the end of the clamping component forms a clamping groove, providing elastic clamping of the pen refill. Anti-slip textures on the surface of the fixing sleeve increase friction during screwing. This invention combines an anti-slip and stable grip structure with a modular pen refill replacement structure, enabling multi-functional expansion of a single tool. It offers advantages such as comfortable grip, stable operation, and wide functional expandability. Attached Figure Description

[0022] Appendix Figure 1 This is a structural schematic diagram of Embodiment 2 of this utility model;

[0023] Appendix Figure 2 This is an appendix to the utility model Figure 1 Sectional view of AA;

[0024] Appendix Figure 3 This is an exploded structural diagram of Embodiment 2 of this utility model;

[0025] Appendix Figure 4 This is a schematic diagram of the structure of the fixing sleeve in Embodiment 2 of this utility model;

[0026] Appendix Figure 5 This is a structural schematic diagram of Embodiment 3 of this utility model;

[0027] Appendix Figure 6 This is an exploded structural diagram of Embodiment 3 of this utility model;

[0028] Appendix Figure 7 This is a schematic diagram of the clamping component in Embodiment 3 of this utility model;

[0029] The markings in the diagram are as follows: 1-pen barrel, 110-barrel, 120-grip section, 121-grip surface, 130-second internal thread; 2-pen tip, 210-clamping component, 211-clamping groove, 212-clamping piece, 213-first external thread, 214-second external thread, 215-protruding end, 220-fixing sleeve, 221-first internal thread, 222-closing end, 223-anti-slip texture; 3-pen refill. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only 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.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.

[0034] See appendix Figure 1 To be continued Figure 7 The illustration shows a specific embodiment of the multifunctional ergonomic pen provided by this utility model. Example 1:

[0035] See appendix Figure 1 and attached Figure 2 The multi-functional ergonomic pen includes:

[0036] The pen barrel 1 includes a barrel body 110 and a gripping middle section 120 disposed on the barrel body 110. The gripping middle section 120 has three gripping surfaces 121 distributed circumferentially, making the outer periphery of the cross-section of the gripping middle section 120 triangular.

[0037] The pen tip 2 is connected to one end of the pen barrel 1 near the middle section 120 of the grip. The pen tip 2 includes a clamping member 210 and a fixing sleeve 220 sleeved on the clamping member 210. The clamping member 210 is provided with a clamping groove 211 at one end away from the pen barrel 1. The fixing sleeve 220 is used to move on the clamping member 210 to squeeze the clamping groove 211 into a clamped state or a relaxed state.

[0038] The pen refill 3 is detachably installed in the clamping groove 211, and the pen refill 3 clamped in the clamping groove 211 will be fixed relative to the clamping member 210.

[0039] See appendix Figure 3 and attached Figure 6 In the above embodiment, the length of the grip section 120 is about one-third of the total length of the shaft 110. The grip section 120 has a structure that is small at both ends and large in the middle in the length direction, so that the maximum outer diameter of the grip section 120 is larger than the outer diameter of the pen shaft 1. The three grip surfaces 121 are circumferentially distributed on the grip section 120, and respectively abut against the pad of the thumb, the pad of the index finger and the side of the middle finger when gripping, so that the fingers and the pen shaft 1 make stable contact at multiple points when gripping, forming an anti-rolling structure, making it less likely to slip when gripping, avoiding hand muscle fatigue, and improving the comfort of continuous operation. In this embodiment, when the fixing sleeve 220 does not press the clamping member 210, the clamping groove 211 of the clamping member 210 is in a relaxed state. The user can install the pen refill 3 into the clamping groove 211, and then operate the fixing sleeve 220 to press the clamping member 210, so that the clamping groove 211 on the clamping member 210 clamps the pen refill 3, and fixes the pen refill 3 on the clamping member 210. This modular pen refill replacement structure makes it easy to replace different functional pen refills 3 according to the work requirements, which significantly improves the functional expandability of the tool pen.

[0040] See appendix Figure 2 In the above embodiment, the outer periphery of the cross-section of the gripping middle section 120 is a rounded triangle. In the embodiment, three gripping surfaces 121 are circumferentially distributed on the gripping middle section 120, and there is a curved surface between two adjacent gripping surfaces 121, so that the outer periphery of the cross-section of the gripping middle section 120 presents a rounded triangle structure, which reduces stress concentration during gripping, improves gripping comfort, and is less likely to produce indentations during long-term operation.

[0041] See appendix Figure 1 and attached Figure 5 In the above embodiments, the pen refill 3 is one of a blade, a probe, or a screwdriver bit. In these embodiments, the pen refill 3 can also be other repair tools. The modular pen refill replacement structure enables the multi-scenario applicability of a single tool, reducing the amount of tools carried and improving repair efficiency.

[0042] See appendix Figure 1 In the above embodiments, the shaft 110 and the grip section 120 are integrally molded structures. This integral molding structure reduces structural seams, improves the overall strength of the pen shaft, and enhances the durability of the tool pen. In some optional embodiments, the grip section 120 can be movably fitted onto the shaft 110. By adjusting the relative position of the grip section 120 on the shaft 110, it can be adapted to the usage habits of different users or to different maintenance scenarios.

[0043] See appendix Figure 7 In the above embodiment, the clamping member 210 has at least two clamping pieces 212 that are close to each other at the end away from the pen barrel 1, and a clamping groove 211 is formed between the clamping pieces 212. In the embodiment, the clamping piece 212 is divided into 4 pieces, and the clamping groove 211 formed by the segmented clamping pieces 212 can adapt to different types of pen refills 3, such as probes of different diameters or blades of different widths, so as to achieve elastic clamping of the pen refill 3. Example 2:

[0044] See appendix Figure 3 In this embodiment, based on Embodiment 1, the clamping member 210 is provided with a first external thread 213, and the fixing sleeve 220 is provided with a first internal thread 221 that mates with the first external thread 213. The fixing sleeve 220 is screwed onto the clamping member 210 and presses the clamping piece 212 to clamp the pen refill 3. In this embodiment, the clamping member 210 is fixed on the pen barrel 1, and the free end of the clamping member 210 is the four-lobed clamping piece 212. Through the threaded connection between the clamping member 210 and the fixing sleeve 220 and the screwing and pressing design, the clamping force can be precisely adjusted.

[0045] See appendix Figure 4 In the above embodiment, as a more specific implementation, the inner diameter of the fixing sleeve 220 gradually decreases at the end away from the pen barrel 1 to form a closing end 222. When the fixing sleeve 220 is screwed down so that the closing end 222 approaches the clamping piece 212, the clamping piece 212 is squeezed by the closing end 222 and is in a clamped state. In this embodiment, the fixing sleeve 220 completely covers the clamping member 210. During the screwing process, the fixing sleeve 220 gradually approaches the pen barrel 1, and at the same time, the clamping piece 212 inside the fixing sleeve 220 also gradually approaches the closing end 222 of the fixing sleeve 220. Due to the closing and squeezing of the closing end 222, the four clamping pieces 212 on the clamping member 210 gradually close, realizing the gradual clamping of the pen refill 3, avoiding sudden changes in clamping force that could damage the pen refill 3. This method is also applicable to cylindrical pen refills 3 of different diameters, such as probes and screwdriver bits.

[0046] See appendix Figure 4 In the above embodiment, the fixing sleeve 220 is provided with anti-slip texture 223. In this embodiment, the anti-slip texture 223 can increase the friction when twisting the fixing sleeve 220, and it is not easy to slip in wet or oily environments, making the replacement of the pen refill 3 easier. Example 3:

[0047] See appendix Figure 5 and attached Figure 6In this embodiment, based on embodiment 1, the clamping member 210 is provided with a second external thread 214, and the pen barrel 1 has a second internal thread 130 at one end near the grip section 120 that mates with the second external thread 214. The clamping member 210 is detachably installed onto the pen barrel 1 by screwing. In this embodiment, the threaded connection design between the clamping member 210 and the pen barrel 1 realizes the modularity of the clamping member 210, which facilitates the independent replacement of the clamping member 210, allowing the tool pen to quickly switch functional modules and easily adapt to more different specifications of pen refills 3.

[0048] See appendix Figure 7 In the above embodiment, the clamping piece 212 on the clamping member 210 gradually enlarges at its end to form a protruding end 215. The outer diameter of the clamping member 210 at the protruding end 215 is larger than the inner diameter of the fixing sleeve 220. The fixing sleeve 220, fitted onto the clamping member 210, is located between the edge of the pen barrel 1 and the protruding end 215. In this embodiment, the length of the fixing sleeve 220 is less than the length of the clamping member 210, and the diameter of the clamping member 210 at the connection with the pen barrel 1 is smaller than the outer diameter of the pen barrel 1. Therefore, the fixing sleeve 220 fitted onto the clamping member 210 is located between the edge of the end face of the pen barrel 1 and the protruding end 215 of the clamping member 210. When the clamping member 210 is in a relaxed state, the fixing sleeve 220 has a certain degree of play. As the clamping member 210 is gradually screwed into the pen barrel 1, the movable allowance of the fixing sleeve 220 gradually decreases, and finally one end abuts against the edge of the end face of the pen barrel 1, while the other end gradually squeezes the protruding end 215 of the clamping member 210, causing the end of the clamping piece 212 to gradually close, thereby achieving the clamping effect on the pen refill 3 in the clamping groove 211. This method is suitable for sheet-shaped pen refills 3 of different widths, such as blades.

[0049] In summary, this embodiment provides a multi-functional ergonomic pen. By setting a gripping section 120 with three circumferentially distributed gripping surfaces 121 on the pen barrel 1, and having a triangular outer cross-section, stable multi-point contact between the fingers and the pen barrel 1 is achieved during gripping. The compression clamping structure of the clamping member 210 and the fixing sleeve 220 enables quick and easy installation and removal of the pen refill 3. A segmented clamping plate forming a clamping groove 211 at the end of the clamping member 210 provides elastic clamping of the pen refill 3. Anti-slip textures 223 on the surface of the fixing sleeve 220 increase friction during twisting. This embodiment combines an anti-slip and stable grip structure with a modular pen refill replacement structure, enabling multi-functional expansion of a single tool. It offers advantages such as comfortable grip, stable operation, and wide functional expandability.

[0050] The embodiments described above are merely one of the preferred embodiments of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of the technical solution of this utility model should be included within the protection scope of this utility model.

Claims

1. A multifunctional ergonomic pen, characterized in that, include: The pen barrel (1) includes a shaft (110) and a grip section (120) disposed on the shaft (110). The grip section (120) has three grip surfaces (121) distributed circumferentially, so that the outer periphery of the cross-section of the grip section (120) is triangular. The pen tip (2) is connected to the pen barrel (1) near the grip section (120). The pen tip (2) includes a clamping member (210) and a fixing sleeve (220) sleeved on the clamping member (210). The clamping member (210) has a clamping groove (211) at the end away from the pen barrel (1). The fixing sleeve (220) is used to move on the clamping member (210) to squeeze the clamping groove (211) into a clamped state or a relaxed state. The pen refill (3) is detachably installed in the clamping groove (211), and the pen refill (3) clamped in the clamping groove (211) will be fixed relative to the clamping member (210).

2. The multifunctional ergonomic pen according to claim 1, characterized in that, The outer periphery of the cross-section of the gripping middle section (120) is a rounded triangle.

3. A multifunctional ergonomic pen according to claim 1 or 2, characterized in that, The clamping member (210) has at least two clamping pieces (212) that are close to each other at one end away from the pen barrel (1), and the clamping groove (211) is formed between the clamping pieces (212).

4. A multifunctional ergonomic pen according to claim 3, characterized in that, The clamping member (210) is provided with a first external thread (213), and the fixing sleeve (220) is provided with a first internal thread (221) that mates with the first external thread (213). The fixing sleeve (220) is screwed onto the clamping member (210) and squeezes the clamping piece (212) to clamp the pen refill (3).

5. A multifunctional ergonomic pen according to claim 4, characterized in that, The inner diameter of the fixed sleeve (220) gradually decreases at the end away from the pen barrel (1) to form a folding end (222). When the fixed sleeve (220) is screwed to bring the folding end (222) close to the clamping piece (212), the clamping piece (212) is squeezed by the folding end (222) and is in a clamping state.

6. A multifunctional ergonomic pen according to claim 3, characterized in that, The clamping member (210) is provided with a second external thread (214), and the pen barrel (1) is provided with a second internal thread (130) that mates with the second external thread (214) at one end near the gripping middle section (120). The clamping member (210) is detachably installed on the pen barrel (1) by screwing.

7. A multifunctional ergonomic pen according to claim 6, characterized in that, The clamping piece (212) on the clamping member (210) gradually enlarges at its end to form a protruding end (215). The outer diameter of the clamping member (210) at the protruding end (215) is larger than the inner diameter of the fixing sleeve (220). The fixing sleeve (220) fitted on the clamping member (210) is located between the edge of the pen barrel (1) and the protruding end (215).

8. A multifunctional ergonomic pen according to claim 1, characterized in that, The fixing sleeve (220) is provided with anti-slip texture (223).

9. A multifunctional ergonomic pen according to claim 1, characterized in that, The pen lead (3) is one of the following: a blade, a probe, or a screwdriver bit.

10. A multifunctional ergonomic pen according to claim 1, characterized in that, The shaft (110) and the grip section (120) are integrally formed.

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