Wax head removing structure for writing pen and writing pen

Abstract

The utility model discloses a wax head removing structure for a writing pen, which comprises at least two clamping elastic sheets, the clamping elastic sheets are adjacently arranged to form a clamping channel, and at least parts of the clamping elastic sheets are obliquely arranged; when the writing tip of the writing pen abuts against the inclined part of the clamping elastic piece and enters the clamping channel, the clamping elastic piece deforms so that the clamping channel can be expanded, and the protective wax head of the writing tip crosses the clamping channel. When the writing tip is reversely pulled away from the clamping channel, the clamping elastic piece deforms to enable the clamping channel to be shrunk, and the protective wax head of the writing tip is retained on one side of the clamping channel and is separated from the writing pen. The utility model further discloses a writing pen. The wax head removing structure can be directly arranged on the writing pen, cannot be lost and is convenient to use; a clamping channel is formed by the clamping elastic pieces to pull out and protect the wax head, and the pull-out operation is simple and convenient; and the wax head removing structure can be repeatedly used, so that the use cost is reduced, both hands are not stained, and the user experience is good.

Description

Technical Field

[0001] This utility model belongs to the field of writing pen technology, and in particular relates to a wax removal structure for writing pens and a writing pen. Background Technology

[0002] To protect the writing pen from ink leakage and damage to the writing tip, a protective wax tip is usually wrapped around it. When the pen needs to be used, this wax tip needs to be removed. Traditionally, this involves forcibly pulling the wax tip off by hand, which is laborious and smudges fingers with ink, causing inconvenience. To address these issues, a wax tip remover has been developed, allowing users to remove the protective wax tip from the writing tip. However, this remover is separate from the pen and easily lost, making it relatively inconvenient to use. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a wax tip removal structure for writing pens and a writing pen. The wax tip removal structure is directly set on the writing pen, which is not easy to lose, and the operation of removing the protective wax tip is simple and convenient.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a wax tip removal structure for a writing pen, including at least two clamping springs, the clamping springs being arranged adjacently to form a clamping channel, and at least a portion of the clamping springs being inclined; when the writing tip of the writing pen enters the clamping channel against the inclined portion of the clamping spring, the clamping spring deforms to expand the clamping channel, and the protective wax tip of the writing tip crosses the clamping channel; when the writing tip is pulled away from the clamping channel in the opposite direction, the clamping spring deforms to shrink the clamping channel, and the protective wax tip of the writing tip remains on one side of the clamping channel and detaches from the writing pen.

[0005] The wax tip removal structure of this invention can be directly installed on the writing pen, preventing loss and making it easy to use. It utilizes a clamping spring to form a clamping channel for removing and protecting the wax tip. Simply move the writing tip up and down relative to the clamping channel for easy removal. The wax tip removal structure is reusable, reducing operating costs.

[0006] Furthermore, the number of clamping springs is at least three, with gaps formed between circumferentially adjacent clamping springs. A clamping channel is formed within the inner sides of the multiple clamping springs, and this clamping channel communicates with the gaps. The design of multiple clamping springs increases the range of expansion and contraction of the clamping channel, allowing for greater deformation of the mating gaps, facilitating effective removal of the wax tip.

[0007] Furthermore, the clamping spring also forms a guide channel connected to the clamping channel. This guide channel is tapered, with its starting inner diameter larger than its ending inner diameter. The clamping channel is located at the end of the guide channel, and the two are concentric and coaxial. The writing tip, carrying the protective wax, first enters the guide channel and then the clamping channel. The guide channel serves a positioning function, while simultaneously increasing the structural strength of the clamping spring and ensuring that the clamping channel can effectively remove the protective wax.

[0008] Furthermore, the clamping spring includes a connecting portion and a spring body. The thickness of the connecting portion is less than the thickness of the spring body. The inner wall of the spring body is cut to form an inclined surface to create the guide channel. The connecting portion allows the clamping spring to undergo greater deformation, resulting in a larger change in the inner diameter of the clamping channel, ensuring that the protective wax head can pass through the clamping channel.

[0009] Furthermore, the end face of the spring body near the clamping channel is horizontal; the connecting part has a thin sheet structure, with its inner ring connected to the outer middle area of ​​the spring body and its outer ring connected to the pen cap or pen lid. On the upper and lower sides of the connecting part, the connecting part and the pen cap or pen lid form deformation gaps. The horizontal surface provides a larger contact area between the protective wax tip and the spring body, making operation more efficient; the existence of the deformation gaps provides space for the spring body to deform, while also limiting the deformation range of the spring body and preventing excessive deformation.

[0010] Furthermore, the clamping spring is inclined as a whole, extending from the outside to the inside along the direction in which the writing tip enters the clamping channel to form the guide channel. Because the clamping spring is inclined at a large angle, its radial width is greater than the radial width inside the pen cap. When the writing tip moves upwards with the protective wax tip, even if the clamping spring deforms, its inner ring will not bend along with the writing tip, ensuring that the protective wax tip can be easily removed.

[0011] Furthermore, the clamping channel has a circular cross-section, and in the initial state, its inner diameter is larger than the inner diameter of the writing tip but smaller than the outer diameter of the protective wax tip.

[0012] This utility model also discloses a writing pen, including a pen barrel, a pen core assembly, and a pen cap that covers the pen barrel, wherein the closed end of the pen cap forms the aforementioned wax removal structure.

[0013] This utility model discloses a writing pen, including a pen cap, a pen barrel, and a pen refill assembly, wherein the closed end of the pen cap forms the aforementioned wax removal structure.

[0014] The wax tip removal mechanism has various placement options to accommodate different writing pens.

[0015] Furthermore, the pen cap is detachably connected to the pen refill assembly.

[0016] The beneficial effects of this utility model are: the wax tip removal structure can be directly set on the writing pen, preventing loss and making it convenient to use; the clamping spring forms a clamping channel for removing and protecting the wax tip, requiring only the writing tip to be moved up and down relative to the clamping channel, making the removal operation simple and convenient; the wax tip removal structure can be reused, reducing usage costs, preventing soiling the user's hands, and providing a better user experience; the wax tip removal structure can be set in various positions to adapt to writing pens with different structures. Attached Figure Description

[0017] Figure 1 A perspective view of the writing pen provided by this utility model.

[0018] Figure 2 A cross-sectional view of the writing pen provided by this utility model.

[0019] Figure 3 A perspective view of the pen cap for a writing pen is provided for this utility model.

[0020] Figure 4 A schematic diagram of the pen cap wax tip removal structure provided by this utility model for removing the protective wax tip. Figure 1 At this point, the protective wax head crosses the clamping channel.

[0021] Figure 5 for Figure 4 Enlarged view of the structure at point A in the image.

[0022] Figure 6 A schematic diagram of the pen cap wax tip removal structure provided by this utility model for removing the protective wax tip. Figure 2 At this point, the protective wax head will be in contact with the horizontal surface.

[0023] Figure 7 for Figure 6 Enlarged view of the structure at point B in the image.

[0024] Figure 8 A schematic diagram of the pen cap wax tip removal structure provided by this utility model for removing the protective wax tip. Figure 3 At this point, the protective wax tip is about to detach from the writing tip.

[0025] Figure 9 for Figure 8 Enlarged view of the structure at point C.

[0026] Figure 10 A schematic diagram of the pen cap wax tip removal structure provided by this utility model for removing the protective wax tip. Figure 4 At this point, the wax tip is detached from the writing tip.

[0027] Figure 11 for Figure 10 Enlarged view of the structure at point D in the image.

[0028] Figure 12 Cross-sectional view of another structure of the clamping spring provided by this utility model Figure 1 At this point, the protective wax head is about to cross the clamping channel.

[0029] Figure 13 Cross-sectional view of another structure of the clamping spring provided by this utility model Figure 2 At this point, the protective wax head will be in contact with the horizontal surface.

[0030] Figure 14 Cross-sectional view of another structure of the clamping spring provided by this utility model Figure 2 At this point, the wax tip is detached from the writing tip.

[0031] Figure 15 A partial perspective view of the wax removal structure provided by this utility model on the pen cap.

[0032] Figure 16 A partial cross-section of the wax removal structure provided by this utility model for the pen cap. Figure 1 .

[0033] Figure 17 A partial cross-section of the wax removal structure provided by this utility model for the pen cap. Figure 2 .

[0034] Figure 18 A schematic diagram of the pen cap wax removal structure provided by this utility model for removing the protective wax tip. Figure 1 .

[0035] Figure 19 A schematic diagram of the pen cap wax removal structure provided by this utility model for removing the protective wax tip. Figure 2 At this point, the protective wax head crosses the clamping channel.

[0036] Among them, 1-clamping spring, 11-gap, 12-connecting part, 13-spring body, 131-inclined surface, 132-horizontal surface, 133-first deformation gap, 134-second deformation gap, 21-clamping channel, 22-guide channel, 3-writing pen, 31-writing tip, 4-protective wax head, 5-pen barrel, 51-pen cap, 52-pen cap. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort should fall within the scope of protection of the present invention.

[0038] A wax tip removal structure for a writing pen includes at least two clamping springs 1, which are arranged adjacently to form a clamping channel 21. At least a portion of the clamping springs 1 is inclined. When the writing tip 31 of the writing pen 3 (with the protective wax tip 4 attached) enters the clamping channel 21, the writing tip 31 may abut against the inclined portion of the clamping spring 1, or it may not abut against the inclined portion of the clamping spring 1 but still contact the inclined portion of the clamping spring 1 upon entering the clamping channel 21. The inclined portion mainly functions to deform, causing the clamping spring 1 to deform and thus expand the clamping channel 21 until the protective wax tip 4 of the writing tip 31 crosses the clamping channel 21. When the writing tip 31 (still with the protective wax tip 4 attached) is pulled away from the clamping channel 21 in the opposite direction, the clamping spring 1 deforms, thus shrinking the clamping channel 21. The protective wax tip 4 of the writing tip 31 remains on one side of the clamping channel 21 and is detached from the writing pen 3 under the action of the clamping channel 21.

[0039] like Figure 3 , Figure 11 As shown, there are at least three clamping spring pieces 1, with gaps 11 formed between circumferentially adjacent clamping spring pieces 1. A clamping channel 21 is formed within the inner sides of the multiple clamping spring pieces 1, and this clamping channel 21 communicates with the gaps 11. In this embodiment, there are four clamping spring pieces 1, and the gaps 11 extend radially, forming a cross-shaped gap 11. In this case, the cross-section of the clamping channel 21 is approximately circular. In the initial state, the inner diameter of the clamping channel 21 is larger than the inner diameter of the writing tip 31, but smaller than the outer diameter of the protective wax tip 4.

[0040] Of course, the number of clamping springs 1 can also be three or two. In this case, the clamping channel 21 can be a strip-shaped gap between two clamping springs 1. There is no specific limitation. As long as the writing tip 31 with the protective wax head 4 can be brought down to meet the clamping spring 1 and enter the clamping channel 21, the clamping channel 21 will widen. When the writing tip 31 with the protective wax head 4 is pulled up to remove the clamping spring 1, the clamping channel 21 will narrow and meet the protective wax head 4 to make it detach from the writing tip 31.

[0041] like Figure 11As shown, the clamping spring 1 also forms a guide channel 22 that communicates with the clamping channel 21. Taking the direction shown in the figure as an example, the guide channel 22 is conical. The upper end is defined as the starting end and the lower end as the ending end. The inner diameter of the starting end is larger than the inner diameter of the ending end. The clamping channel 21 is located at the end of the guide channel 22, and the two are concentric and coaxial.

[0042] Thus, the writing tip 31, carrying the protective wax head 4, first enters the guide channel 22, and then enters the clamping channel 21. The guide channel 22 plays a role in positioning and placing the writing tip, while increasing the structural strength of the clamping spring 1 and ensuring that the clamping channel 21 can effectively remove the protective wax head 4.

[0043] The clamping spring 1 includes a connecting part 12 connected to the pen cap 51 or pen cap 52 of the writing pen, and a spring body 13. In this embodiment, the connecting part 12 is a thin sheet structure, and its thickness is much smaller than that of the spring body 13. Therefore, when the writing tip 31 abuts against the clamping spring 1, the clamping spring 1 can undergo greater deformation, and the inner diameter of the clamping channel 21 changes significantly, ensuring that it allows the protective wax tip 4 to pass through the clamping channel 21.

[0044] The above description does not specify the exact location of the connecting part 12. More specifically, for example... Figures 12-14 As shown, the inner ring of the connecting part 12 is connected to the outer middle region of the spring body 13, and the outer ring of the connecting part 12 is connected to the inner wall of the pen cap 51. Above the connecting part 12, a first deformation gap 133 is formed between the spring body 13 and the inner wall of the pen cap 51. Below the connecting part 12, a second deformation gap 134 is formed between the spring body 13 and the inner wall of the pen cap 51. Alternatively, the outer ring of the connecting part 12 can also be connected to the inner wall of the pen cap 52, forming the first and second deformation gaps. The presence of the first deformation gap 133 and the second deformation gap 134 provides space for the spring body 13 to deform, while also limiting the deformation range of the spring body 13.

[0045] like Figure 12 As shown, when the protective wax tip 4 passes the clamping channel 21 and the spring body 13 is pushed downward and outward, the second deformation gap 134 shrinks, and the lower outer wall of the spring body 13 abuts against the inner wall of the pen cap 51 (or the inner wall of the pen cap 52), preventing the lower part of the spring body 13 from opening excessively outward and preventing the clamping channel 21 from expanding excessively. That is, the second deformation gap 134 limits the deformation range of the spring body 13.

[0046] like Figure 14As shown, when the writing tip 31 is pulled back from the clamping channel 21, the protective wax head 4 is removed from the writing tip 31, the first deformation gap 133 shrinks, and the upper outer wall of the spring body 13 abuts against the inner wall of the pen cap 51 (or the inner wall of the pen cap 52), preventing the upper part of the spring body 13 from opening excessively outward and preventing the clamping channel 21 from shrinking excessively. That is, the first deformation gap 133 limits the deformation range of the spring body 13. The inner wall of the spring body 13 is cut to form an inclined surface 131, thereby forming a guide channel 22. In other words, the spring body 13 has a large thickness and relatively high structural strength, which can improve the clamping force to remove the protective wax head 4 and avoid failure after repeated use. In this embodiment, the end face of the spring body 13 near the clamping channel 21 is a horizontal surface 132, that is, with Figure 11 Taking the direction shown as an example, the lower end surface of the spring body 13 is a horizontal surface 132, which protects the wax head 4 and the spring body 13 so that they have a larger contact area through the horizontal surface 132, making the operation more efficient.

[0047] like Figure 1 , Figure 2 As shown, a writing pen includes a pen barrel 5 and a refill assembly, namely a pen cap 51 that covers the pen barrel 5. The closed end of the pen cap 51 forms a wax removal structure as described above. Both the pen barrel 5 and the refill assembly can be existing writing pen structures, and will not be described in detail here.

[0048] When it is necessary to remove the protective wax tip 4, remove the pen cap 51 from the pen barrel 5, as follows: Figure 4 , Figure 5 As shown, align the writing tip 3 with the protective wax tip 4 with the guide channel 22 and insert it downward into the clamping channel 21; at this time, the clamping spring 1 deforms, specifically, the lower end of the spring body 13 opens downward and outward, the clamping channel 21 expands, allowing the protective wax tip 4 to smoothly pass through the clamping channel 21; as shown Figure 6 , Figure 7 As shown, once the protective wax tip 4 passes through the clamping channel 21 and the downward force applied to the pen barrel 5 ceases, the spring body 13 can recover its deformation, or at least partially recover its deformation; as Figure 8 , Figure 9As shown, when an upward force is applied in the opposite direction, that is, when the writing tip 31 is pulled away from the clamping channel 21, the protective wax head 4 abuts against the horizontal surface 132 at the lower end of the spring body 13. Due to the deformation of the clamping spring 1, specifically, the lower end of the spring body 13 retracts upward and inward, thus reducing the clamping channel 21. It should be noted that the reduction of the clamping channel 21 here is not necessarily compared with the initial state, but can also be said to be compared with the clamping channel 21 after it has been opened by the writing tip 31, or by the writing tip 31 and the protective wax head 4. In other words, it is also because the spring body 13 recovers its deformation or partially recovers its deformation that the protective wax head 4 is stuck at the bottom. The outer diameter of the protective wax head 4 is too large to pass smoothly through the clamping channel 21, that is, the protective wax head 4 is stuck at the lower end of the clamping channel 21. With the continuous application of an upward force, under the action of the spring body 13, specifically under the action of its lower horizontal surface 132, the protective wax head 4 can detach from the writing tip 31 of the writing pen 3, as shown. Figure 10 As shown; once the protective wax tip 4 is removed from the writing tip 31, the spring body 13 will return to its initial state.

[0049] like Figure 15 , Figure 16 As shown, the wax tip removal structure is located at the closed end of the pen cap 52. This wax tip removal structure can be the same as the structure described above, or it can be another structural form. The pen cap 52 is detachably connected to the pen refill assembly, but it is also possible that it is detachably connected to the pen barrel 5. The detachable connection structure between the pen cap 52 and the pen refill assembly can be like... Figure 16 The same threaded detachable connection can be like... Figure 17 The same snap-fit ​​connection method allows for detachable connection; specific details are not limited.

[0050] In another structural configuration, the clamping spring 1 is tilted as a whole, with its outer ring fixedly connected to the pen cap 52. It extends tilted from the outer ring to the inner ring, along the direction in which the writing tip 31 enters the clamping channel 21, thus forming a guide channel 22. The thickness direction of the clamping spring 1 itself forms the clamping channel 21, i.e., defining... Figure 16 The area shown in L1 is the guide channel 22, and the area shown in L2 is the clamping channel 21.

[0051] When it is necessary to remove the protective wax tip 4, remove the pen cap 52 from the pen refill assembly, as follows: Figure 18 As shown, align the writing tip 31 with the protective wax tip 4 with the guide channel 22 and insert it downward into the clamping channel 21; at this time, the clamping spring 1 deforms, opening downward and outward, and the clamping channel 21 expands, allowing the protective wax tip 4 to smoothly pass through the clamping channel 21; as Figure 19As shown, once the protective wax tip 4 passes through the clamping channel 21, the downward force applied to the pen barrel 5 stops, and the clamping spring 1 tends to recover its deformation. When an upward force is applied in the opposite direction, that is, when the writing tip 31 is pulled away from the clamping channel 21, the protective wax tip 4 abuts against the inner ring of the clamping spring 1. Due to the deformation of the clamping spring 1, specifically, the inner ring of the clamping spring 1 shrinks upward and inward, thereby reducing the clamping channel 21. The outer diameter of the protective wax tip 4 is too large to pass smoothly through the clamping channel 21, that is, the protective wax tip 4 remains on the lower end of the clamping channel 21. The upward force is continuously applied, and the inner ring of the clamping spring 1 scrapes the writing tip 31 of the pen 3 with the protective wax tip 4. Once the protective wax tip 4 is separated from the writing tip 31, the clamping spring 1 will return to its initial state.

[0052] Because the clamping spring 1 is tilted as a whole and the tilt angle is large, its radial width is greater than the radial width inside the pen cap 52. When the writing tip 31 moves upward with the protective wax head 4, even if the clamping spring 1 deforms, its inner ring will not bend with the writing tip 31. That is, it forms a bending deformation at an angle to the tilt direction, ensuring that the protective wax head 4 can be removed smoothly.

[0053] certainly, Figures 15-17 The wax tip removal mechanism can also be located on the pen cap 51. Figure 3 The wax removal structure can also be set on the pen cap 52, and there are no specific restrictions.

[0054] The above specific embodiments are used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. A wax tip removal structure for a writing pen, characterized in that: The device includes at least two clamping springs (1), which are arranged adjacently to form a clamping channel (21). At least a portion of the clamping springs (1) is inclined. When the writing tip (31) of the writing pen (3) enters the clamping channel (21) against the inclined portion of the clamping springs (1), the clamping springs (1) deform to expand the clamping channel (21), and the protective wax head (4) of the writing tip (31) crosses the clamping channel (21). When the writing tip (31) is pulled away from the clamping channel (21) in the opposite direction, the clamping springs (1) deform to shrink the clamping channel (21), and the protective wax head (4) of the writing tip (31) remains on one side of the clamping channel (21) and is removed from the writing pen (3).

2. The wax removal structure according to claim 1, characterized in that: The number of clamping spring pieces (1) is at least three, and a gap (11) is formed between the circumferentially adjacent clamping spring pieces (1). A clamping channel (21) is formed on the inner side of the multiple clamping spring pieces (1), and the clamping channel (21) is connected to the gap (11).

3. The wax removal structure according to claim 1 or 2, characterized in that: The clamping spring (1) also forms a guide channel (22) connected to the clamping channel (21), which is conical and has a larger inner diameter at the starting end than at the end. The clamping channel (21) is located at the end of the guide channel (22), and the two are concentric and coaxial.

4. The wax removal structure according to claim 3, characterized in that: The clamped spring (1) includes a connecting part (12) and a spring body (13). The thickness of the connecting part (12) is less than the thickness of the spring body (13). The inner wall of the spring body (13) is cut to form an inclined surface (131) to form the guide channel (22).

5. The wax removal structure according to claim 4, characterized in that: The end face of the spring body (13) near the clamping channel (21) is a horizontal plane (132); the connecting part (12) has a thin sheet structure, with its inner ring connected to the middle area of ​​the outer side of the spring body (13), and its outer ring connected to the inner wall of the pen cap (51) or pen cap (52) of the writing pen. On the upper and lower sides of the connecting part (12), the spring body (13) and the pen cap (51) or the pen cap (52) cooperate to form a deformation gap.

6. The wax removal structure according to claim 3, characterized in that: The clamping spring (1) is inclined as a whole, and extends from the outside to the inside along the direction in which the writing tip (31) enters the clamping channel (21) to form the guide channel (22).

7. The wax removal structure according to claim 2, characterized in that: The clamping channel (21) has a circular cross-section. In the initial state, its inner diameter is larger than the inner diameter of the writing tip (31) and smaller than the outer diameter of the protective wax head (4).

8. A writing pen, comprising a pen barrel (5), a refill assembly, and a pen cap (51) covering the pen barrel (5), characterized in that: The closed end of the pen cap (51) forms a wax removal structure as described in any one of claims 1-7.

9. A writing pen, comprising a cap (52), a barrel (5), and a refill assembly, characterized in that: The closed end of the pen cap (52) forms a wax removal structure as described in any one of claims 1-7.

10. The writing pen according to claim 9, characterized in that: The pen cap (52) is detachably connected to the pen refill assembly.

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