Connection structure and pen implement
By using a flexible connecting arm and a one-piece molded structure in the pen refill and plug-in component, the problem of high dimensional accuracy of the pen refill and plug-in component is solved, resulting in more efficient production and a better user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANVON UGEE TECH CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-09
Smart Images
Figure CN224335364U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pen technology, specifically to a connection structure and a pen. Background Technology
[0002] With the advancement of modern technology, pens with removable refills have become widely popular due to their convenient refill replacement feature. However, conventional refill inserts and refills are generally quite rigid. When the dimensions are not properly matched, the refill and insert may be too tight or too loose, severely impacting the user experience. Furthermore, this design requires extremely high dimensional accuracy for both the refill insert and the refill, which is detrimental to improving production efficiency. Utility Model Content
[0003] This application provides a connection structure and pen tool to solve the problem of high dimensional accuracy requirements for pen refills and plug-in components.
[0004] In some embodiments, a connection structure is provided, which includes a first connection portion and a second connection portion connected to each other. The second connection portion includes a receiving groove. The first connection portion is disposed in the receiving groove. The first connection portion includes a plurality of elastically deformable first connection arms. The plurality of first connection arms surround to form a slot. The first connection portion is inserted into an external first structural member through the slot and each of the first connection arms clamps the first structural member. The outer periphery of the second connection portion is connected to an external second structural member.
[0005] In some embodiments, one end of each of the first connecting arms is fixedly connected to the bottom wall of the receiving groove, and the other end extends away from the bottom wall of the receiving groove, and the cross-section of each of the first connecting arms gradually decreases along the extending direction of the first connecting arm.
[0006] In some embodiments, each of the first connecting arms includes a clamping segment and a prepositioning segment. Along the extending direction of the first connecting arm, the clamping segment and the prepositioning segment are connected in sequence, and the slot diameter formed by the prepositioning segments of each of the first connecting arms gradually increases.
[0007] In some embodiments, each of the clamping segments is provided with a protruding ridge protruding toward the center of the slot, and each protruding ridge smoothly transitions with a corresponding prepositioning segment. When the first structural member is inserted into the slot, each of the protruding ridges abuts against the outer periphery of the first structural member to clamp the first structural member.
[0008] In some embodiments, a plurality of the first connecting arms are evenly distributed along the circumference of the slot;
[0009] And / or, the first connecting part and the second connecting part are integrally formed, and the connecting structure is made of elastic plastic material or metal material.
[0010] In some embodiments, the second connection portion includes a connector and at least two second connecting arms, the at least two second connecting arms extending from the same side of the connector to enclose the connector to form a receiving groove, and each second connecting arm engaging with a second structural member.
[0011] In some embodiments, a buckle is provided on the outer side of each of the second connecting arms, the buckle being located at the end of the corresponding second connecting arm away from the connecting body.
[0012] In some embodiments, a pen is provided, which includes a cylinder, a pen refill, and a connecting structure as described in any of the foregoing embodiments, wherein the pen refill and the connecting structure are disposed in the cylinder, a first connecting portion of the connecting structure is pluggably connected to the pen refill, and a second connecting portion is connected to the cylinder.
[0013] In some embodiments, a limiting groove is provided on the cylinder body, and when the connecting structure is provided with a buckle, the buckle is engaged in the limiting groove and slides along the limiting groove;
[0014] The cylinder is also provided with an elastic element, which is connected to the connecting structure so that the connecting structure can slide along the limiting groove under the pressure of the pen refill, and reset under the action of the elastic element after the pressure of the pen refill is removed.
[0015] In some embodiments, the connection structure includes a guide portion disposed on the side of the second connection portion opposite to the receiving groove, and the elastic member is sleeved on the outer periphery of the guide portion.
[0016] In the connection structure provided in this application embodiment, by setting multiple elastically deformable first connecting arms and each first connecting arm forming a slot, the first connecting part can be inserted into an external first structural component, such as a pen refill, through the slot, and the first structural component can be clamped by each first connecting arm. Furthermore, this application connects to the second structural component solely through the second connecting part, eliminating the need for each first connecting arm to connect to the second structural component. This avoids the first connecting arms being restricted by the second structural component, and the multiple first connecting arms have a larger deformation space, allowing for better containment of the first structural component, i.e., the pen refill. This reduces the dimensional accuracy requirements of the connection structure and the pen refill, making production easier. In addition, in the connection structure provided in this application, by placing the first connecting part within the receiving groove of the second connecting part, the structures of the first and second connecting parts are compact, reducing the volume occupied by the connection structure. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the internal structure of the pen in some embodiments of this application;
[0019] Figure 2 yes Figure 1 A partial exploded view of the pen in the embodiment;
[0020] Figure 3 yes Figure 1 Top view of the connection structure in the embodiment;
[0021] Figure 4 yes Figure 1 A schematic diagram of the connection structure in the embodiment;
[0022] Figure 5 These are simulation analysis diagrams of the connection structure and pen refill insertion / removal process in some embodiments of this application;
[0023] Figure 6 These are simulation analysis diagrams of the connection structure and the insertion / removal process of another pen refill in some embodiments of this application;
[0024] Figure 7 These are simulation analysis diagrams of the connection structure and the refill insertion / removal process in some embodiments of this application. Detailed Implementation
[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.
[0026] All directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly. The terms "comprising" and "having" and any variations thereof in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.
[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0028] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the internal structure of the pen in some embodiments of this application. Figure 2 yes Figure 1 A partial exploded view of the pen in the embodiment. This application provides a pen, which can be an electromagnetic pen, a pencil with a removable lead, or a ballpoint pen, etc. The pen provided by this application includes a cylinder 20, a lead 30, and a connecting structure 10. The lead 30 and the connecting structure 10 are disposed in the cylinder 20. The first connecting part 11 of the connecting structure 10 is removably connected to the lead 30, and the second connecting part 12 is connected to the cylinder 20.
[0029] Please combine Figure 1 , Figure 3 and Figure 4 , Figure 3 yes Figure 1 Top view of the connection structure in the embodiment. Figure 4 yes Figure 1A schematic diagram of the connection structure in the embodiment is shown. The connection structure 10 includes a first connecting portion 11 and a second connecting portion 12 that are interconnected. The second connecting portion 12 includes a receiving groove 121. The first connecting portion 11 is disposed in the receiving groove 121 and includes multiple elastically deformable first connecting arms 111. The multiple first connecting arms 111 surround and form a slot 112. The first connecting portion 11 is inserted into an external first structural member through the slot 112, and each first connecting arm 111 clamps the first structural member. That is, each first connecting arm 111 can be deformed by the compression of the first structural member when the first structural member is inserted into the slot 112, and clamps the first structural member after it is fully inserted. The outer periphery of the second connecting portion 12 is connected to the external second structural member.
[0030] It is understood that the first structural component can be the pen refill 30, and the second structural component can be the cylinder 20. The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0031] In related technologies, because both the pen refill insert and the pen refill are relatively hard, although a notch is made at the slot of the pen refill insert to form a lever arm, the lever arm usually needs to be connected to the body, making the deformation space of the lever arm very limited. Conventional pen refill insert designs have high requirements for the dimensional accuracy of both the pen refill insert and the pen refill. The proportion of poor tightness when the pen refill insert matches the pen refill can reach 5% to 8%, which is not conducive to production. When the dimensions are not well matched, the pen refill and the pen refill insert are prone to being too tight or too loose when inserted or removed, resulting in a poor user experience.
[0032] In the connection structure 10 provided in this application, by setting multiple elastically deformable first connecting arms 111, and each first connecting arm 111 enclosing to form a slot 112, the first connecting part 11 can be inserted into the external first structural member through the slot 112 and clamped to the first structural member by each first connecting arm 111. Furthermore, this application connects to the second structural member solely through the second connecting part 12, eliminating the need for each first connecting arm 111 to be connected to the second structural member, thus avoiding the first connecting arm 111 being restricted by the second structural member. The multiple first connecting arms 111 have a larger deformation space, which can better enclose the first structural member, i.e., the pen refill 30. This reduces the dimensional accuracy requirements of the connection structure 10 and the pen refill 30, reduces the proportion of poor tightness during matching, is more conducive to production, and provides a better user experience.
[0033] Furthermore, in the connection structure 10 provided in this application, by placing the first connection part 11 in the receiving groove 121 of the second connection part 12, the structure of the first connection part 11 and the second connection part 12 is compact, thereby reducing the volume occupied by the connection structure 10.
[0034] Please see Figure 3 and Figure 4 In some embodiments, one end of each first connecting arm 111 is fixedly connected to the bottom wall of the receiving groove 121, and the other end extends away from the bottom wall of the receiving groove 121. And along the extending direction of the first connecting arm 111 ( Figure 4 In the X direction (as shown in the diagram), the cross-section of each first connecting arm 111 gradually decreases. This allows the first connecting arm 111 to better adapt to the shape of the first structural member during insertion and removal, providing a stable clamping force. At the same time, the gradual reduction in cross-section also increases the elastic deformation capacity of the first connecting arm 111, making the insertion and removal process smoother and reducing resistance during insertion and removal.
[0035] Please see Figure 4 In some embodiments, each first connecting arm 111 includes a clamping segment 1111 and a prepositioning segment 1112. Along the extending direction of the first connecting arm 111, the clamping segment 1111 and the prepositioning segment 1112 are connected sequentially, and the diameter of the slot 112 formed by the prepositioning segments 1112 of each first connecting arm 111 gradually increases. When the first structural member is inserted into the slot 112, the prepositioning segment 1112 can play a guiding role, making it easier for the first structural member to enter the slot 112. The clamping segment 1111 gradually clamps the first structural member, providing a stable connection.
[0036] In other embodiments, the end of the first structural member that is inserted into the connecting structure can also be designed with a diameter that gradually increases along the extension direction of the first connecting arm, which also facilitates the insertion of the first structural member into the slot.
[0037] Please continue reading. Figure 4 In some embodiments, each clamping segment 1111 protrudes with a ridge 1113 towards the center of the slot 112. Each ridge 1113 smoothly transitions with its corresponding prepositioning segment 1112. When the first structural member is inserted into the slot 112, each ridge 1113 abuts against the outer periphery of the first structural member to clamp it. The design of the ridge 1113 reduces the contact area between the first structural member and the first connecting arm 111, thereby reducing the friction between the first structural member and the first connecting arm 111, making it easier to insert and remove the first connecting part 11 from the first structural member. At the same time, since each ridge 1113 smoothly transitions with its corresponding prepositioning segment 1112, the ridge 1113 will not cause excessive resistance or damage to the first structural member during insertion and removal, ensuring smooth insertion and removal.
[0038] In some embodiments, a plurality of first connecting arms 111 are evenly distributed along the circumference of the slot 112. Exemplarily, four first connecting arms 111 are provided, and the four first connecting arms 111 are arranged opposite each other in pairs. The number of first connecting arms 111 is not limited; for example, there can be three, five, etc. The plurality of first connecting arms 111 are evenly spaced along the circumference of the slot 112, so that the clamping force of the plurality of first connecting arms 111 on the first structural member is evenly distributed, ensuring the stability of the first structural member within the slot 112. Simultaneously, when the first structural member is inserted into the slot 112, the insertion resistance in all directions is relatively uniform, further improving the smoothness of insertion and removal.
[0039] In some embodiments, the first connecting portion 11 and the second connecting portion 12 are integrally formed, and the connecting structure 10 is made of elastic plastic material or metal material. The integrally formed design not only simplifies the manufacturing process but also improves the structural strength between the first connecting portion 11 and the second connecting portion 12, making the connecting structure 10 more stable and reliable during use. For example, the connecting structure 10 made of elastic plastic material has good elasticity and wear resistance, providing a certain buffering effect during insertion and removal, further protecting the first structural component from damage.
[0040] Please see Figure 4 In some embodiments, the second connecting portion 12 includes a connecting body 122 and at least two second connecting arms 123, the at least two second connecting arms 123 extending from the same side of the connecting body 122 such that the second connecting arms 123 and the connecting body 122 enclose to form a receiving groove 121, and each second connecting arm 123 is engaged with a second structural member.
[0041] Please combine Figure 2 and Figure 4 Specifically, each second connecting arm 123 has a latch 1231 on its outer side, located at the end of the corresponding second connecting arm 123 away from the connecting body 122. A limiting groove 21 is formed on the cylinder 20, and the latch 1231 is engaged in the limiting groove 21. It is understood that when subjected to external force, the second connecting arm 123 can undergo elastic deformation to adapt to second structural components of different sizes, such as the cylinder 20, thereby enhancing the compatibility and adaptability of the connection. This elastic deformation capability makes the connecting structure 10 more flexible during insertion, removal, or assembly, facilitating user operation. Simultaneously, the elastically deformed second connecting arm 123 provides a certain pre-tightening force when the latch 1231 engages with the limiting groove 21, ensuring the stability of the connecting structure 10 and preventing accidental detachment. In this application, the second connecting arm 123 is set separately from the first connecting arm 111 and can be deformed independently. This not only improves the comfort of inserting and removing the connecting structure 10 and the pen refill 30, but also makes it easier to assemble the connecting structure 10 into the cylinder 20.
[0042] It should be noted that, in order to meet the strength requirements of the connecting structure 10, the deformation capacity of the second connecting arm 123 is relatively small. This balances the flexibility and strength of the connecting structure 10, so that the connecting structure 10 can adapt to a certain deformation when subjected to external forces, while ensuring that the connection is firm and does not loosen, thus ensuring the overall rigidity and stability of the structure.
[0043] Furthermore, the length of the limiting groove 21 is greater than the length of the buckle 1231, allowing the buckle 1231 to slide along the limiting groove 21 when it is engaged in the limiting groove 21. An elastic element 40 is also provided inside the cylinder 20. The elastic element 40 is connected to the connecting structure 10 so that the connecting structure 10 can slide along the limiting groove 21 under the pressure of the pen refill 30, and reset under the action of the elastic element 40 after the pressure of the pen refill 30 is removed. The elastic element 40 includes, but is not limited to, springs, sheet springs, etc.
[0044] It is understood that in some embodiments, the limiting groove can also be provided on the second connecting arm, and the corresponding buckle can be provided on the cylinder, as long as the limiting groove and the buckle can engage with each other and the buckle can slide along the limiting groove in the limiting groove.
[0045] In some embodiments, the connecting structure 10 includes a guide portion 13, which is disposed on the side of the second connecting portion 12 opposite to the receiving groove 121. An elastic member 40 is sleeved on the outer periphery of the guide portion 13. The guide portion 13 allows the elastic member 40 to be more stably sleeved on the connecting structure 10 during installation, preventing displacement or detachment of the elastic member 40 during installation and improving the stability and reliability of the connecting structure 10. Simultaneously, the guide portion 13 can also guide the deformation direction of the elastic member 40, allowing it to slide along a predetermined direction when squeezed by the pen refill 30, further ensuring the smooth operation of the connecting structure 10.
[0046] In this application, by pairing several pen refills 30 with the connecting structure 10, the yield rate of dimensional fit reached 100%. Please refer to [link / reference]. Figures 5 to 7 , Figure 5 These are simulation analysis diagrams of the connection structure and pen refill insertion / removal process in some embodiments of this application. Figure 6 These are simulation analysis diagrams illustrating the connection structure and the insertion / removal process of another pen refill in some embodiments of this application. Figure 7 These are simulation analysis diagrams of the connection structure and the insertion and removal process of a pen refill in some embodiments of this application. Simulation analysis was performed when the size of the pen refill 30 was at the maximum, intermediate and minimum values of the sizes that the connection structure 10 could accommodate, and the maximum force borne by pen refills 30 of different sizes during insertion and removal relative to the connection structure 10 was obtained.
[0047] Among them, such as Figure 5As shown, when the size of the pen refill 30 is the minimum size that the connecting structure 10 can accommodate, the maximum force on the pen refill 30 during the insertion process of the connecting structure 10 is 0.057N, and the maximum force during the extraction process is 0.056N.
[0048] like Figure 6 As shown, when the size of the pen refill 30 is in the middle value of the size that the connecting structure 10 can adapt to, the maximum force on the pen refill 30 during the insertion of the connecting structure 10 is 2.44N, and the maximum force during the extraction of the pen refill 30 is 2.35N.
[0049] like Figure 7 As shown, when the size of the pen refill 30 is at the maximum value of the size that the connecting structure 10 can accommodate, the maximum force on the pen refill 30 during the insertion of the connecting structure 10 is 5.03N, and the maximum force during the removal of the pen refill 30 is 4.91N.
[0050] Depend on Figures 5 to 7 It is understood that the connection structure 10 provided in this application embodiment has a gentle force curve during the insertion and removal of the pen refill 30, making the insertion and removal of the pen refill 30 easy and significantly improving the user's experience.
[0051] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.
Claims
1. A connection structure characterized by comprising: The device includes a first connecting portion and a second connecting portion that are interconnected. The second connecting portion includes a receiving groove. The first connecting portion is disposed in the receiving groove. The first connecting portion includes a plurality of elastically deformable first connecting arms. The plurality of first connecting arms surround to form a slot. The first connecting portion is inserted into an external first structural member through the slot and each of the first connecting arms clamps the first structural member. The outer periphery of the second connecting portion is connected to an external second structural member.
2. The connection structure according to claim 1, characterized in that One end of each of the first connecting arms is fixedly connected to the bottom wall of the receiving groove, and the other end extends away from the bottom wall of the receiving groove. Along the extension direction of the first connecting arm, the cross-section of each of the first connecting arms gradually decreases.
3. The connection structure according to claim 2, characterized in that Each of the first connecting arms includes a clamping section and a prepositioning section. Along the extending direction of the first connecting arm, the clamping section and the prepositioning section are connected in sequence, and the slot diameter formed by the prepositioning sections of each first connecting arm gradually increases.
4. The connection structure according to claim 3, characterized in that Each of the clamping segments has a protruding ridge protruding toward the center of the slot. Each protruding ridge smoothly transitions with the corresponding prepositioning segment. When the first structural member is inserted into the slot, each of the protruding ridges abuts against the outer periphery of the first structural member to clamp the first structural member.
5. The connection structure according to any one of claims 1 to 4, characterized in that, Multiple first connecting arms are evenly distributed along the circumference of the slot; And / or, the first connecting part and the second connecting part are integrally formed, and the connecting structure is made of elastic plastic material or metal material.
6. The connection structure according to any one of claims 1 to 4, characterized in that The second connecting part includes a connecting body and at least two second connecting arms. The at least two second connecting arms extend from the same side of the connecting body to form a receiving groove with the connecting body. Each second connecting arm is engaged with the second structural member.
7. The connection structure according to claim 6, characterized in that Each of the second connecting arms has a buckle on its outer side, the buckle being located at the end of the corresponding second connecting arm away from the connecting body.
8. A writing instrument, characterized by The device includes a cylinder, a pen refill, and a connecting structure as described in any one of claims 1-7, wherein the pen refill and the connecting structure are disposed in the cylinder, a first connecting portion of the connecting structure is pluggably connected to the pen refill, and a second connecting portion is connected to the cylinder.
9. The pen of claim 8, wherein A limiting groove is provided on the cylinder body. When the connecting structure is provided with a buckle, the buckle is engaged in the limiting groove and slides along the limiting groove. The cylinder is also provided with an elastic element, which is connected to the connecting structure so that the connecting structure can slide along the limiting groove under the pressure of the pen refill, and reset under the action of the elastic element after the pressure of the pen refill is removed.
10. The pen of claim 9, wherein The connecting structure includes a guide portion, which is located on the side of the second connecting portion away from the receiving groove, and the elastic element is sleeved on the outer periphery of the guide portion.