Refill holder and writing pen

Abstract

The utility model discloses a refill holder which comprises an annular body, a first clamping part and a second clamping part, the first clamping part and the second clamping part are oppositely arranged on the two sides of the body, and a clamping channel is formed by the first clamping part, the body and the second clamping part. The first clamping part is obliquely folded in the direction close to the center shaft of the body, and when the refill is inserted into the clamping channel, the first clamping part is expanded to drive the second clamping part to be folded in the direction close to the center shaft of the body and to be clamped on the outer wall of the refill; the utility model further discloses a writing pen. According to the writing pen, through the arrangement of the refill holder, after the first clamping part is opened by the refill, the second clamping part can be driven to be close to the refill, so that the refill is clamped by the second clamping part, the refill is prevented from shaking in the pen holder to influence the writing experience, and the use comfort of the writing pen is improved.

Description

Technical Field

[0001] The utility model belongs to the field of writing pen structures, in particular to a pen core holder and a writing pen. Background Art

[0002] In order to reduce the cost of writing pens, the reuse and versatility of pen covers have received more and more attention and concern. Some pens with universal pen covers are now sold on the market. In order to match more refills, a larger space is reserved in the pen cover, resulting in the refill not being clamped tightly enough, causing the refill to shake in the pen cover, affecting the user's writing.

[0003] Chinese patent CN219564585U discloses "A universal locking pen case structure", which includes a pen body, a fastening sleeve and a refill chuck. The pen body and the refill chuck are detachably connected. The refill chuck is used to clamp the front end of the refill. The outer side of the refill chuck is also provided with a fastening sleeve for adjusting the tightness of the refill chuck opening. This structure divides the pen case into three parts: the pen body, the refill chuck and the fastening sleeve, so as to clamp the refill. The modification of the pen case is relatively large, which increases the difficulty of processing. The arc-shaped clamp is only fastened by the contact part between the lower end of the fastening sleeve and the arc-shaped clamp, and the clamping effect is limited. Moreover, long-term use can easily lead to the failure of the elastic force of the fastening sleeve, which affects the clamping of the refill. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a refill holder and a writing pen. The refill holder has a stable clamping effect on the refill, effectively preventing the refill from shaking in the pen holder, improving the comfort of using the writing pen, and has a simple structure and is easy to process.

[0005] The utility model adopts the following technical solution to solve the technical problem: a refill holder, comprising a ring-shaped body, and a first clamping part and a second clamping part relatively arranged on both sides of the body, wherein the first clamping part, the body and the second clamping part form a clamping channel; the first clamping part is inclined and gathered in a direction close to the central axis of the body, and when the refill is inserted into the clamping channel, the first clamping part is stretched open, driving the second clamping part to gather in a direction close to the central axis of the body and clamped on the outer wall of the refill.

[0006] The refill holder of the utility model can drive the second clamping part to approach the refill after the first clamping part is stretched open by the refill, so as to clamp the refill by the second clamping part, thereby preventing the refill from shaking in the pen holder and affecting the writing experience, thereby improving the comfort of using the writing pen. The setting of the refill holder does not require modification of the original structure of the pen holder, has strong versatility, and also improves the versatility of the pen holder. It can be used for most refills on the market, has a wider range of applicability, can save renewable resources, and is more energy-saving and environmentally friendly.

[0007] Furthermore, the number of the first clamping part and the second clamping part are both at least two, and they are evenly spaced along the circumference of the body. The even arrangement of the clamping parts can exert a stable force on the pen core, forming a stable clamping effect on the pen core, and preventing the pen core from deflecting or shaking due to uneven force; and the number of the first clamping part and the second clamping part can be adjusted according to the thickness of the pen core. When the diameter of the pen core is thicker, the required clamping effect is smaller, and the first clamping part and the second clamping part can be set in small quantities. When the diameter of the pen core is thinner, the number of the first clamping part and the second clamping part can be increased or they can be set in a closed ring to enhance the clamping effect on the pen core.

[0008] Furthermore, a protrusion is formed on the inner wall of the first clamping part, and when the pen core is inserted into the clamping channel, the pen core contacts the protrusion to open the first clamping part. The setting of the protrusion reduces the contact area between the first clamping part and the pen core, making it easier for the pen core to be inserted into the clamping channel and also easier for the pen core to rebound and be stored inside the pen holder.

[0009] Furthermore, the protrusion is an arc-shaped protrusion, which forms a line contact with the pen core. The arc-shaped protrusion reduces the contact area between the first clamping part and the pen core, and its surface is smooth, thereby avoiding scratches on the surface of the pen core during clamping.

[0010] Furthermore, the end of the first clamping portion away from the body forms an inclined guide surface, which extends from the inside to the outside in a direction away from the body. The inclined guide surface increases the space of the top opening of the clamping channel, making it easier to insert the pen core into the clamping channel.

[0011] Furthermore, the second clamping part has a claw formed at one end away from the body, and the claw is formed by bending the second clamping part toward the central axis of the body. The arrangement of the claw can shorten the lateral distance between the second clamping part and the pen core, and even if the first clamping part is slightly deformed, the claw of the second clamping part can still be driven to clamp the pen core; and the claw can match the existing pen holder structure, improve the applicability of the pen core holder, and facilitate the use with a variety of pen holders.

[0012] Furthermore, the body radially protrudes from the outer wall of the first clamping part and the second clamping part to form a buckle part that can cooperate with the pen holder. The buckle part is used to fix the position of the refill holder to prevent the refill holder from shaking back and forth or being lost in the pen holder, affecting the clamping of the refill.

[0013] Furthermore, the buckle portion has a guide surface extending obliquely from the second clamping portion to the first clamping portion and from the inside to the outside. The setting of the guide surface facilitates the refill holder to be smoothly inserted into the pen holder along the oblique direction of the guide surface.

[0014] The utility model also discloses a writing pen, comprising a pen holder and a pen core, wherein the pen core holder is clamped at the end of the pen holder.

[0015] Further, a tapered table surface is formed on the outer wall of the refill, and the inclination direction of its outer wall is the same as that of the inclined guiding surface. This reduces the resistance when the refill is inserted into the refill holder, facilitating the insertion or removal of the refill from the refill holder.

[0016] The beneficial effects of the present utility model are as follows: 1) A refill holder is provided inside the pen barrel to clamp the refill, preventing the refill from shaking inside the pen barrel and affecting writing, and improving the comfort of using the writing pen; 2) The refill holder and the pen barrel are detachably arranged, without the need to modify the original structure of the pen barrel, with strong versatility, which also improves the versatility of the pen barrel, can be applicable to most refills on the market, has a wider application range, and is more energy-saving and environmentally friendly; 3) The body, the first clamping part, and the second clamping part are integrally connected, and the linkage between the first clamping part and the second clamping part is better. When the first clamping part deforms, it can drive the second clamping part to deform; 4) The refill holder is made of an elastic material, enabling the clamping part to automatically reset after use, facilitating the second clamping part to clamp the refill again when using the writing pen next time; 5) The setting of the claw part shortens the horizontal distance between the second clamping part and the refill. Even when the first clamping part undergoes a small deformation, it can still drive the claw part of the second clamping part to clamp the refill. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a cross-section of the present utility model Figure 1 , at this time the refill is not clamped by the refill holder.

[0018] Figure 2 is Figure 1 an enlarged view of the structure at A in

[0019] Figure 3 is a cross-section of the present utility model Figure 2 , at this time the refill is clamped by the refill holder.

[0020] Figure 4 is Figure 3 an enlarged view of the structure at B in

[0021] Figure 5 is a partial structural schematic diagram of the refill holder in the present utility model Figure 1 .

[0022] Figure 6 is a partial structural schematic diagram of the refill holder in the present utility model Figure 2 .

[0023] Figure 7 is a cross-section of the present utility model Figure 3 , at this time the refill is not clamped by the refill holder.

[0024] Figure 8 is a cross-section of the present utility model Figure 4, at this time, the pen core is clamped by the pen core clamp.

[0025] Figure 9 It is a schematic diagram of the partial structure of the pen holder in the utility model.

[0026] Among them, 1-main body, 11-buckle part, 111-guide surface, 2-first clamping part, 21-protrusion, 22-inclined guide surface, 3-second clamping part, 31-claw part, 4-clamping channel, 5-pen core, 51-conical surface, 52-pen head, 6-pen shaft, 61-limiting protrusion. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0028] like Figures 1 - 6 As shown, a pen core holder comprises a ring-shaped body 1, a first clamping portion 2 and a second clamping portion 3, wherein the first clamping portion 2 and the second clamping portion 3 are arranged on both sides of the body 1. Figure 5 Taking the direction shown as an example, the first clamping part 2, the body 1 and the second clamping part 3 are connected in sequence from top to bottom, the first clamping part 2 is connected to the upper end face of the hollow ring-shaped body 1, and the second clamping part 3 is connected to the lower end face of the hollow ring-shaped body 1. The first clamping part 2 and the second clamping part 3 are opposite to each other up and down, and the three can be integrally injection molded, so that the linkage between the first clamping part 2 and the second clamping part 3 is better. The body 1 serves as a fulcrum. When the first clamping part 2 is deformed, the second clamping part 3 is driven to deform. In this embodiment, the first clamping part 2 and the second clamping part 3 are both elastic sheet structures that are easy to deform, which facilitates the deformation of the clamping part after being pressed and the automatic reset after the pressing effect disappears. The first clamping part 2, the body 1 and the second clamping part 3 are surrounded to form a clamping channel 4 for the pen core 5 to pass through.

[0029] like Figure 2 As shown, before the refill 5 is inserted into the clamping channel 4, more precisely, before the refill 5 contacts the first clamping portion 2, the first clamping portion 2 is tilted and retracted toward the direction close to the central axis of the body 1; Figure 4As shown, when the refill 5 is inserted into the clamping channel 4, the first clamping portion 2 is expanded by the refill 5, and the first clamping portion 2 inclines in a direction away from the central axis of the body 1, thereby driving the second clamping portion 3 to converge in a direction close to the central axis of the body 1 and clamping on the outer wall of the refill 5. Thus, even if the outer diameter of the pen tip 52 of the refill 5 is smaller than the inner diameter of the opening at the writing pen end, the refill 5 will not shake.

[0030] In the present utility model, by arranging a refill holder inside the pen barrel 6, after the first clamping portion 2 is expanded by the refill 5, it drives the originally outwardly opened second clamping portion 3 to approach the refill 5, realizing the clamping of the refill 5 by the second clamping portion 3, preventing the refill 5 from shaking inside the pen barrel 6 and affecting writing, and improving the use comfort of the writing pen; and the refill holder is made of an elastic material. After the refill 5 exits the clamping channel 4, the first clamping portion 2 and the second clamping portion 3 can automatically reset, facilitating the second clamping portion 3 to clamp the refill 5 again when using the writing pen next time; at the same time, there is no need to modify the original structure of the pen barrel 6, with strong versatility. The setting of the refill holder also improves the versatility of the pen barrel 6, which can be applicable to most refills 5 on the market, has a wider application range, can save renewable resources, and is more energy-saving and environmentally friendly.

[0031] As Figure 5 、 Figure 6 shown, the number of the first clamping portions 2 and the second clamping portions 3 is at least two, and they are evenly spaced along the circumferential direction of the body 1. Specifically, the number of the first clamping portions 2 and the second clamping portions 3 is two or more. When both the first clamping portions 2 and the second clamping portions 3 are two, the two first clamping portions 2 and the second clamping portions 3 are symmetrically arranged respectively, so that the clamping force on the refill 5 is relatively balanced, the clamping of the refill 5 is more stable, and the refill 5 is prevented from shifting or shaking due to uneven force. In this embodiment, the number of the first clamping portions 2 and the second clamping portions 3 is four each, forming a stable clamping effect on the refill 5 in the front, back, left, and right four directions. Of course, in other embodiments, the first clamping portions 2 and the second clamping portions 3 can be arranged in a closed ring shape, surrounding the body 1 for one week, and the clamping of the refill 5 can also be achieved, and specific limitations are not made.

[0032] As Figure 6 shown, a protrusion 21 is formed on the inner wall of the first clamping portion 2. When the refill 5 is inserted into the clamping channel 4, the refill 5 contacts with the protrusion 21 to expand the first clamping portion 2. In this embodiment, the protrusion 21 is an arc-shaped protrusion 21, forming a line contact with the refill 5. On the one hand, it reduces the contact area between the first clamping portion 2 and the refill 5, facilitating the insertion of the refill 5 into the clamping channel 4 and also facilitating the refill 5 to rebound and retract into the pen barrel 6. On the other hand, the surface of the arc-shaped protrusion 21 is smooth, avoiding scratching the surface of the refill 5 during clamping.

[0033] Of course, the protrusion 21 can also be of other shapes or without the protrusion 21, such as Figure 7 、Figure 8 As shown, no protrusion 21 is provided on the surface of the first clamping portion 2. When the refill 5 is inserted into the clamping channel 4, the refill 5 forms a surface contact with the first clamping portion 2, and no specific limitation is made.

[0034] Take Figure 6 the direction shown as an example. One end of the first clamping portion 2 away from the body 1 forms an inclined guiding surface 22, which extends obliquely from the inside to the outside in the direction away from the body 1. The inclined guiding surface 22 increases the space of the top opening of the clamping channel 4, facilitating the insertion of the refill 5 into the clamping channel 4.

[0035] As Figure 6 shown, one end of the second clamping portion 3 away from the body 1 forms a claw portion 31, which is formed by bending the second clamping portion 3 towards the direction close to the central axis of the body 1. On the one hand, the formation of the claw portion 31 makes the opening of the clamping channel 4 at one end close to the second clamping portion 3 smaller, and the claw portion 31 is closer to the refill 5 in the transverse direction. Even if the deformation of the first clamping portion 2 is small, it can still drive the claw portion 31 of the second clamping portion 3 to clamp the refill 5. On the other hand, the tip 52 of the refill 5 is narrower than the refill 5. After the second clamping portion 3 is bent to form the claw portion 31, the transverse distance between the claw portion 31 and the tip 52 is shortened, facilitating the claw portion 31 to clamp the tip 52 and preventing the tip 52 of the refill 5 from shaking. Additionally, usually, the end of the pen barrel 6 extending close to the refill 5 gradually becomes narrower. After the second clamping portion 3 is bent, it can better match the structure of the existing pen barrel 6, improving the applicability of the refill holder and facilitating the use with various pen barrels 6. Of course, in other embodiments, the second clamping portion 3 can directly incline towards the direction close to the central axis of the body 1 to form the claw portion 31 starting from its connection with the body 1, and the clamping effect on the refill 5 can also be achieved, without specific limitation. Further, the surface of the claw portion 31 forms an inwardly concave arc, which is adapted to the cylindrical shape of the refill 5, increasing the contact area between the claw portion 31 and the refill 5 and making the clamping of the refill 5 by the claw portion 31 more stable.

[0036] As Figures 1 - 4 shown, a writing pen includes a pen barrel 6 and a refill 5. The end of the pen barrel 6 is provided with the above-mentioned refill holder. A tapered table surface 51 is formed on the outer wall of the refill 5, and its inclination direction is the same as that of the inclined guiding surface 22, reducing the resistance of the refill 5 when inserted into the refill holder and facilitating the insertion or removal of the refill 5 from the refill holder. Of course, in other embodiments, the outer wall of the refill 5 may not have the tapered table surface 51, which does not affect the use of the clip holder, without specific limitation.

[0037] As Figure 2 、 Figure 4 、 Figure 5 、 Figure 9As shown, the body 1 radially protrudes from the outer walls of the first clamping portion 2 and the second clamping portion 3 to form a buckle portion 11 that can cooperate with the pen holder 6. Specifically, the refill holder and the pen barrel 6 are detachably arranged, and a limiting protrusion 61 is formed on the inner wall of the pen barrel 6 to be engaged with the buckle part 11. After the refill holder is inserted into the pen barrel 6, the buckle part 11 on the main body 1 and the limiting protrusion 61 on the pen barrel 6 are abutted against each other up and down, and the second clamping part 3 and the end of the pen barrel 6 close to the pen head 52 are abutted against each other to fix the position of the refill holder to prevent the refill holder from shaking back and forth or being lost in the pen barrel 6, affecting the clamping of the refill 5; and after the buckle part 11 and the limiting protrusion 61 are engaged, a stable supporting point is formed, and the main body 1 is relatively immovable as a fulcrum. After the first clamping part 2 is stretched open by the refill 5, it tilts in the direction away from the central axis of the main body 1, thereby driving the second clamping part 3 to close in the direction close to the central axis of the main body 1 to achieve the function of clamping the refill 5. Its principle is similar to that of a seesaw, and its structure is simple and easy to process. Furthermore, the buckle portion 11 has a guide surface 111 extending obliquely from the second clamping portion 3 to the first clamping portion 2 and from the inside to the outside. In this embodiment, the body 1 is made of elastic material, and the body 1 and the guide surface 111 have dual functions, which facilitates the refill holder to be smoothly inserted into the pen holder 6 along the oblique direction of the guide surface 111.

[0038] The assembly process of the refill holder and the pen holder in the utility model is as follows: the refill holder is inserted into the end of the pen holder 6 near the pen head 52, and under the inclined guidance of the guide surface 111, the buckle portion 11 on the body 1 passes over the limiting protrusion 61 on the pen holder 6 and then abuts against its end surface up and down, thereby realizing the assembly of the refill holder and the pen holder 6.

[0039] The use process of this utility model: Figure 2 As shown, when the writing pen is not in use, or in other words, only the tip 52 of the refill 5 is inserted into the clamping channel 4, the refill 5 is not in contact with the refill holder, and the first clamping portion 2 is tilted and retracted toward the direction close to the central axis of the body 1; Figure 4 As shown, when the refill 5 extends out of the pen shaft 6 so that the writing pen is in use, the refill 5 is inserted into the clamping channel 4, the first clamping part 2 is stretched open by the refill 5, and the first clamping part 2 is tilted in the direction away from the central axis of the body 1, thereby driving the second clamping part 3 to retract in the direction close to the central axis of the body 1 and clamped on the outer wall of the refill 5, preventing the refill 5 from shaking during writing, thereby improving the comfort of using the writing pen; after using the writing pen, the pen head 52 is retracted into the pen shaft 6, at this time the refill 5 is not in contact with the refill clamp, the first clamping part 2 and the second clamping part 3 are automatically reset, the first clamping part 2 is tilted and retracted in the direction close to the central axis of the body 1, driving the second clamping part 3 to move in the direction away from the central axis of the body 1, so that the second clamping part 3 can re-clamp the refill 5 when the writing pen is used next time.

[0040] The above specific embodiments are used to explain the present utility model, rather than to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims of the present utility model fall within the protection scope of the present utility model.

Claims

1. A refill holder, characterized in that: The invention comprises an annular body (1), and a first clamping part (2) and a second clamping part (3) arranged on both sides of the body (1) in a relative manner. The first clamping part (2), the body (1) and the second clamping part (3) form a clamping channel (4). The first clamping part (2) is inclined and retracted in a direction close to the central axis of the body (1). When a pen core (5) is inserted into the clamping channel (4), the first clamping part (2) is stretched open, driving the second clamping part (3) to retract in a direction close to the central axis of the body (1) and clamped on the outer wall of the pen core (5).

2. The refill holder according to claim 1, wherein: The number of the first clamping parts (2) and the number of the second clamping parts (3) are both at least two, and they are evenly spaced and arranged along the circumference of the body (1).

3. The refill holder according to claim 1, characterized in that: A protrusion (21) is formed on the inner wall of the first clamping portion (2), and when the pen core (5) is inserted into the clamping channel (4), the pen core (5) contacts the protrusion (21) to open the first clamping portion (2).

4. The refill holder according to claim 3, characterized in that: The protrusion (21) is an arc-shaped protrusion, which forms a linear contact with the pen core (5).

5. The refill holder according to claim 1, wherein: An end of the first clamping portion (2) facing away from the main body (1) forms an inclined guide surface (22), and the inclined guide surface (22) extends obliquely from the inside to the outside in a direction away from the main body (1).

6. The refill holder according to claim 1, characterized in that: An end of the second clamping portion (3) facing away from the main body (1) forms a claw portion (31), and the claw portion (31) is formed by bending the second clamping portion (3) in a direction close to the central axis of the main body (1).

7. The refill holder according to claim 1, characterized in that: The body (1) radially protrudes from the outer walls of the first clamping portion (2) and the second clamping portion (3), forming a buckle portion (11) that can cooperate with the pen holder (6).

8. The refill holder according to claim 7, wherein: The buckle portion (11) has a guide surface (111) extending obliquely from the second clamping portion (3) to the first clamping portion (2) and from the inside to the outside.

9. A writing pen, comprising a pen barrel and a refill, characterized in that: The end of the pen holder (6) is clamped with a refill holder as claimed in any one of claims 1 to 8.

10. The writing pen according to claim 9, characterized in that: The outer wall of the pen core (5) forms a frustum surface (51), and the inclination direction of the frustum surface (51) is the same as the inclination direction of the inclined guide surface (22).

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