A multi-function key
Patent Information
- Application Number
- CN202522461388.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-19
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-19
AI Technical Summary
[0004]为了解决笔的携带率较低导致人们日常用笔不便的问题，本申请提供一种多功能钥匙
1.钥匙头的头部设有钥牙可用于正常开锁，杆部开设容纳腔用于容纳笔芯，同时配合设置在杆部上的笔尖可实现书写功能，使人们在随身携带钥匙的同时也能携带笔，有效解决了因笔携带率低导致人们日常用笔不便的问题，提升了人们生活的便利性与工作效率；
Smart Images
Figure CN224902919U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of everyday tools and, in particular, to a multi-functional key. Background Technology
[0002] In daily life and the office, traditional keys have always been the key tool for unlocking doors. As society continues to develop and people's pace of life becomes increasingly fast, the number of tasks to be handled in different scenarios is increasing daily, highlighting the growing need for multifunctional tools. Since keys are items that people carry with them almost daily, giving them more practical functions would significantly improve the convenience of life and work efficiency.
[0003] Currently, pens are used more frequently in daily life, but people don't usually carry them around like keys, which can be inconvenient in many situations. For example, signing for packages or marking items at home is inconvenient without a writing instrument; similarly, when out and about, if you need to record phone numbers or addresses, you might not have a pen on hand and have to rely on electronic devices, which can also be inconvenient if they run out of power. Therefore, combining the frequently used pen with the keys that people carry with them can solve these inconveniences to some extent and is of great significance. Utility Model Content
[0004] To address the problem of low pen portability leading to inconvenience in daily pen use, this application provides a multi-functional key.
[0005] This application provides a multi-functional key, which adopts the following technical solution: A multi-functional key includes a key head and a key handle. The key head includes a head with key teeth and a rod for connecting the head and the key handle. The rod has a receiving cavity and a pen refill is disposed in the receiving cavity. A pen tip is disposed at the end of the rod away from the head and is nested with the pen refill. A pen cap is fixedly connected to the key handle and is sleeved on the end of the rod away from the head.
[0006] By adopting the above technical solution, the key head consists of a head and a shaft. The head is equipped with key teeth for normal unlocking, while the shaft has a cavity for holding the pen refill. With the pen tip on the shaft, it can be used for writing. This allows the key that people carry with them every day to not only be used for unlocking but also as a pen for writing, solving the problem of low pen carrying rate and inconvenience in daily pen use, and improving the convenience of people's lives and work efficiency. The key handle is easy for the hand to grip when unlocking, and the pen cap fixedly connected to the key handle is fitted onto the end of the shaft away from the head, which can protect the pen tip and pen refill, preventing ink leakage or pen tip damage.
[0007] Preferably, an extension tube is slidably disposed within the receiving cavity of the rod, the extension tube is sleeved on the outside of the pen refill, and the pen tip is threadedly connected to the end of the extension tube.
[0008] By adopting the above technical solution, the extension tube is slidably set in the receiving cavity and sleeved on the outside of the pen refill, and the pen tip and the end of the extension tube are securely assembled by threaded connection; when writing, the user can extend the extension tube out of the receiving cavity to change the overall length of the writing structure, obtain a more comfortable grip and writing feel, and avoid inconvenience due to the short rod; when not writing, the extension tube can be retracted to keep the overall key structure compact, without affecting the unlocking function and making it easy to carry, thus taking into account both writing comfort and structural practicality.
[0009] Preferably, a protrusion is provided on the side wall of the extension tube, and a sliding groove is provided on the inner wall of the receiving cavity to form a sliding fit with the protrusion. A limiting groove is provided on the inner wall of the receiving cavity away from the head along its circumference, and the limiting groove is connected to the sliding groove.
[0010] By adopting the above technical solution, the protrusion on the side wall of the extension tube and the sliding groove on the inner wall of the receiving cavity form a sliding fit, which can guide and limit the sliding of the extension tube, making the extension and retraction process of the extension tube stable and smooth, and avoiding deviation and jamming. The limiting groove on the inner wall of the end of the receiving cavity is connected to the sliding groove. When the protrusion slides to the end of the receiving cavity, the user can rotate the extension tube to drive the protrusion into the limiting groove, thereby temporarily limiting and fixing the extension tube, preventing the extension tube from accidentally retracting during writing, and thus ensuring the stability of the writing process.
[0011] Preferably, a connector is provided at one end of the extension tube near the head, and the end of the pen refill is engaged with the connector.
[0012] By adopting the above technical solution, a connector is set at one end of the extension tube near the head, and the end of the pen refill is connected to the connector. This allows the pen refill to be securely installed in the extension tube, preventing it from shaking or shifting during use, thus ensuring the stability and smoothness of writing.
[0013] Preferably, a protective sleeve is fitted on the outer wall of the extension tube, and the protective sleeve is provided with a plurality of anti-slip protrusions.
[0014] By adopting the above technical solution, a protective sleeve is fitted on the outer wall of the extension tube and several anti-slip protrusions are set on the protective sleeve, which can effectively increase the friction between the hand and the extension tube, making the writing process more stable and smooth, and improving the comfort and convenience of writing.
[0015] Preferably, a snap-fit block is provided on the outer wall of the rod, and a snap-fit groove is provided on the inner wall of the pen cap to form an embedded fit with the snap-fit block.
[0016] By adopting the above technical solution, the locking block on the outer wall of the pen stem and the locking groove on the inner wall of the pen cap form an embedded fit, which makes the connection between the pen cap and the pen stem more stable. The pen cap is not easy to fall off during carrying, thus protecting the pen tip and pen refill at all times and preventing ink leakage or pen tip damage. At the same time, the locking structure can prevent relative rotation between the pen cap and the pen stem, ensuring stable operation of the key handle when the user unlocks the pen and preventing the unlocking operation from being affected by the rotation of the pen cap.
[0017] Preferably, the head and the rod are detachably and fixedly connected.
[0018] By adopting the above technical solution, the head and the rod are detachably and fixedly connected, so that when the head or rod of the key is damaged, it is not necessary to replace the entire key head, but only some parts need to be replaced, thereby reducing maintenance costs. At the same time, in different unlocking scenarios, the heads of different key teeth can be replaced as needed, improving the applicability and flexibility of the multi-functional key.
[0019] Preferably, a plug-in block is provided at one end of the head near the rod, and a plug-in groove is provided on the rod to form a plug-in engagement with the plug-in block.
[0020] By adopting the above technical solution, the plug-in block of the head and the plug-in slot of the rod form a plug-in fit. This connection method has a simple structure and is easy to assemble. It can quickly realize the detachable and fixed connection between the head and the rod, and at the same time has a good positioning function to prevent relative rotation after the head and the rod are connected, thereby ensuring the smooth progress of the unlocking operation.
[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The head of the key head is equipped with key teeth for normal unlocking, and the bar has a cavity for holding the pen refill. At the same time, the pen tip set on the bar can realize the writing function, so that people can carry a pen while carrying the key. This effectively solves the problem of inconvenience caused by low pen carrying rate in daily life, and improves the convenience of people's life and work efficiency. 2. An extension tube is slidably fitted inside the receiving cavity of the rod and sleeved on the outside of the pen refill, and the pen tip is threadedly connected to the end of the extension tube; when writing, the user can extend the extension tube out of the receiving cavity to change the overall length of the writing structure, thereby obtaining a more comfortable grip and writing feel. At the same time, when not writing, the extension tube can be retracted to keep the overall key structure compact, without affecting the unlocking function and making it easy to carry. 3. The snap-fit block on the outer wall of the pen cap and the snap-fit groove on the inner wall of the pen cap form an embedded fit, which can securely fix the pen cap to the pen cap and prevent it from falling off easily. At the same time, it can prevent the pen cap from rotating relative to the pen cap and the pen cap, so as to avoid affecting the unlocking operation due to the rotation of the pen cap. The plug-in block at the end of the head near the pen cap forms a plug-in fit with the plug-in groove of the pen cap, which realizes the detachable and fixed connection between the head and the pen cap, which facilitates partial repair and replacement of the head or the pen cap and reduces maintenance costs. Attached Figure Description
[0022] Figure 1 This is a front view that mainly reflects the overall structure in the embodiments of this application; Figure 2 This is an exploded view of the overall structure, which is the main feature of the embodiments in this application. Figure 3 This is a partial sectional view of the main internal structure of the rod in the embodiments of this application; Figure 4 This is a partial isometric schematic diagram of the main sliding groove and limiting groove structures in the embodiments of this application; Figure 5 This is a partial exploded view of the sheath structure, which is the main feature of the embodiments in this application.
[0023] Reference numerals: 1. Key head; 11. Head; 111. Key tooth; 112. Insertion block; 12. Rod; 121. Insertion groove; 122. Receiving cavity; 1221. Slide groove; 1222. Limiting groove; 123. Annular protrusion; 124. Snap-fit block; 2. Key handle; 3. Extension tube; 31. Protrusion; 32. Insertion socket; 33. Annular groove; 4. Pen refill; 5. Pen tip; 6. Pen cap; 61. Snap-fit groove; 7. Protective sleeve; 71. Anti-slip protrusion. Detailed Implementation
[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail.
[0025] This application discloses a multi-functional key.
[0026] Reference Figure 1 , Figure 2 as well as Figure 3A multi-functional key includes a key head 1 and a key handle 2. The key head 1 includes a head 11 with key teeth 111 and a rod 12 for connecting the head 11 and the key handle 2, and the head 11 and the rod 12 are detachably and fixedly connected. A plug block 112 is fixedly connected to one end of the head 11 near the rod 12 by welding. In this embodiment, the cross-section of the plug block 112 is cross-shaped, and the rod 12 is provided with a corresponding plug groove 121 that forms a plug-in fit with the plug block 112. The rod 12 has a axially oriented groove... The cavity 122 contains an extension tube 3 that slides within it, and a pen refill 4 is installed inside the extension tube 3. The end of the rod 12 away from the head 11 is provided with a pen tip 5 that nests with the pen refill 4, and the pen tip 5 is threadedly connected to the end of the extension tube 3. A pen cap 6 is fixedly connected to the key handle 2 by welding, and the pen cap 6 is fitted onto the end of the rod 12 away from the head 11. In this embodiment, the rod 12 is integrally formed with an annular protrusion 123, and the pen cap 6 forms an interference fit with the rod 12 through the annular protrusion 123.
[0027] In practical use, the head 11 of the key head 1 has key teeth 111 for normal unlocking. The head 11 and the rod 12 are connected by a plug-in block 112 and a plug-in groove 121 to achieve a detachable connection, which facilitates partial repair and replacement of the head 11 or the rod 12, reducing maintenance costs. The cross-section of the plug-in block 112 is cross-shaped, which has a good positioning function and can prevent relative rotation after the head 11 and the rod 12 are connected, thus ensuring the smooth operation of unlocking. The receiving cavity 122 in the rod 12 provides sliding space for the extension tube 3. The pen tip 5 is threadedly connected to the extension tube 3, which makes it convenient for the user to replace the pen refill 4. The key handle 2 is convenient for the hand to hold during unlocking. The pen cap 6 fixed on the key handle 2 is sleeved on the end of the rod 12 away from the head 11, which can protect the pen tip 5 and the pen refill 4. When the writing function is needed, remove the pen cap 6 that is fitted onto the rod 12 and pull the extension tube 3 out of the receiving cavity 122. This changes the overall length of the writing structure, providing a more comfortable grip and writing feel. When the writing function is not needed, push the extension tube 3 back into the receiving cavity 122 and then refit the pen cap 6 onto the end of the rod 12 away from the head 11. At this time, the pen cap 6 forms an interference fit with the rod 12 through the annular protrusion 123, making the pen cap 6 firmly fixed on the rod 12 and preventing ink leakage or damage to the pen tip 5. The overall design integrates the unlocking and writing functions into one, solving the problem of low pen portability leading to inconvenience in daily pen use. This not only makes it convenient for people to carry and use in daily life but also improves the practicality and multifunctionality of the key.
[0028] Reference Figure 2 and Figure 4The outer wall of the rod 12 is integrally formed with a snap-fit block 124. In this embodiment, the outer contour of the snap-fit block 124 is hexagonal, and the inner wall of the pen cap 6 is provided with a snap-fit groove 61 that fits into the snap-fit block 124. In actual use, when the pen cap 6 is fitted onto the rod 12, the snap-fit groove 61 on the inner wall of the pen cap 6 and the snap-fit block 124 on the outer wall of the rod 12 fit into each other, making the connection between the pen cap 6 and the rod 12 more secure and preventing the pen cap 6 from falling off during carrying. At the same time, the outer contour of the snap-fit block 124 is hexagonal, which can prevent the pen cap 6 from rotating relative to the rod 12, ensuring that the user can hold the key handle 2 stably when unlocking, and preventing the pen cap 6 from affecting the unlocking operation.
[0029] Reference Figure 3 and Figure 4 The extension tube 3 has an integrally formed protrusion 31 on the side wall near the head 11, and the inner wall of the receiving cavity 122 has a sliding groove 1221 that slides with the protrusion 31. A limiting groove 1222 is formed circumferentially on the inner wall of the receiving cavity 122 away from the head 11. In this embodiment, the limiting groove 1222 is a quarter-circle arc, and one end of the limiting groove 1222 is connected to one side of the end of the sliding groove 1221. In actual use, when the user pulls the extension tube 3 out of the receiving cavity 122 of the rod 12, the protrusion 31 moves into the sliding groove 122. The sliding mechanism 1 guides and limits the sliding of the extension tube 3, making the sliding of the extension tube 3 more stable and smooth. When the protrusion 31 slides with the extension tube 3 to the end of the slide groove 1221, the user can rotate the extension tube 3 to drive the protrusion 31 into the limiting groove 1222, thereby temporarily limiting and fixing the extension tube 3 to prevent the extension tube 3 from accidentally retracting during writing, thus ensuring the stability of the writing process. When retracting the extension tube 3, the user only needs to rotate the extension tube 3 in the opposite direction to make the protrusion 31 return to the end of the slide groove 1221, and then push the extension tube 3 back into the receiving cavity 122 of the rod 12.
[0030] Reference Figure 3 The extension tube 3 has an integrally formed connector 32 at one end near the head 11, and the end of the pen refill 4 is engaged with the connector 32. In this embodiment, the connector 32 is annular, and the inner diameter of the annular connector 32 is equal to the outer diameter of the end of the pen refill 4. In actual use, when the pen refill 4 is installed in the extension tube 3, the end near the head 11 will engage with the connector 32, which can prevent the pen refill 4 from shaking or shifting during use, thereby ensuring the stability and smoothness of the pen refill 4 when writing.
[0031] Reference Figure 3 and Figure 5The extension tube 3 has a protective sleeve 7 fitted on its outer wall, and the protective sleeve 7 has several anti-slip protrusions 71. In this application, the extension tube 3 has an annular groove 33 on its outer wall near the pen tip 5, and the protective sleeve 7 is fitted on the annular groove 33. In actual use, the protective sleeve 7 combined with the protective protrusions can effectively increase the friction between the hand and the extension tube 3, making the writing process more stable and smooth, and improving the comfort and convenience of writing. At the same time, the protective sleeve 7 fitted on the annular groove 33 can prevent the protective sleeve 7 from shifting during writing, further improving the stability of writing.
[0032] The implementation principle of this application embodiment is as follows: By combining unlocking and writing functions through modular design and functional integration, people can carry both keys and pens, effectively solving the problem of inconvenience caused by low pen carrying rates in daily life, and improving the convenience of life and work efficiency. Specifically, the head 11 and rod 12 of the key head 1 are detachably connected via a cross-shaped connector 112 and a connector groove 121, facilitating local maintenance and replacement while preventing relative rotation after connection to ensure stable unlocking. The cavity 122 within the rod 12 provides storage space for the extension tube 3 with the pen refill 4. The extension tube 3 can be pulled out or retracted through the sliding cooperation of the protrusion 31 and the slide groove 1221. When pulled out, rotating the extension tube 3 causes the protrusion 31 to engage with the limiting groove 1222 for temporary fixation, preventing accidental retraction during writing. The pen refill 4 is positioned by the annular connector 32 inside the extension tube 3 to prevent shaking during use. The pen cap 6 on the key handle 2 is interference-fitted with the rod 12 by the annular protrusion 123 and double-fixed by the engagement of the hexagonal snap block 124 with the snap groove 61. This prevents the pen cap 6 from falling off and rotating during carrying, and also protects the pen tip 5 and the pen refill 4. The end of the extension tube 3 near the pen tip 5 is also fitted with a protective sleeve 7 with anti-slip protrusions 71 through the annular groove 33 to increase friction during writing and prevent the protective sleeve 7 from shifting. Ultimately, this achieves efficient integration and stable use of the two functions.
[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A multi-functional key, characterized in that: The key includes a key head (1) and a key handle (2). The key head (1) includes a head (11) with key teeth (111) and a rod (12) for connecting the head (11) and the key handle (2). The rod (12) has a receiving cavity (122) and a pen refill (4) is provided in the receiving cavity (122). The end of the rod (12) away from the head (11) is provided with a pen tip (5) that nests with the pen refill (4). A pen cap (6) is fixedly connected to the key handle (2) and the pen cap (6) is sleeved on the end of the rod (12) away from the head (11).
2. A multi-functional key according to claim 1, characterized in that: An extension tube (3) is slidably disposed in the receiving cavity (122) of the rod (12). The extension tube (3) is sleeved on the outside of the pen refill (4), and the pen tip (5) is threadedly connected to the end of the extension tube (3).
3. A multi-functional key according to claim 2, characterized in that: The extension tube (3) has a protrusion (31) on its side wall, and the inner wall of the receiving cavity (122) has a sliding groove (1221) that slides and engages with the protrusion (31). A limiting groove (1222) is provided on the inner wall of the receiving cavity (122) away from the head (11) along its circumference, and the limiting groove (1222) is connected to the sliding groove (1221).
4. A multi-functional key according to claim 2, characterized in that: The extension tube (3) is provided with a connector (32) at one end near the head (11), and the end of the pen refill (4) is connected to the connector (32).
5. A multi-functional key according to claim 2, characterized in that: The outer wall of the extension tube (3) is fitted with a protective sleeve (7), and the protective sleeve (7) is provided with a number of anti-slip protrusions (71).
6. A multi-functional key according to claim 1, characterized in that: A snap-fit block (124) is provided on the outer wall of the rod (12), and a snap-fit groove (61) is provided on the inner wall of the pen cap (6) to form an embedded fit with the snap-fit block (124).
7. A multi-functional key according to claim 1, characterized in that: The head (11) and the rod (12) are detachably and fixedly connected.
8. A multi-functional key according to claim 7, characterized in that: The head (11) is provided with a plug-in block (112) at one end near the rod (12), and the rod (12) is provided with a plug-in groove (121) that is plugged into the plug-in block (112).