Multi-functional writing pen

Abstract

A multifunctional writing pen, comprising a pen shell, the top of the pen shell is provided with a first through hole penetrating up and down, the axis of the first through hole is collinear with the axis of the pen shell, the bottom of the pen shell is fixedly installed with a first circular ring protrusion, the axis of the first circular ring protrusion is collinear with the axis of the pen shell, the first circular ring protrusion is communicated with the first through hole, one end of the pen core is fixedly installed with a pen point, the pen point end of the pen core is detachably installed at the top of the pen shell through the first through hole, the other end of the pen core extends to the outside of the first circular ring protrusion, the axis of the pen core is collinear with the axis of the first through hole; the top of the top cover is provided with an integrally formed second circular ring protrusion, the axis of the second circular ring protrusion is collinear with the axis of the top cover, the second circular ring protrusion is detachably installed with a fragrance module, the bottom cover is screwed with the first circular ring protrusion, the installed fragrance module adds the joy and personalized experience of use, and the writing process is more comfortable and pleasant.

Description

Technical Field

[0001] This utility model relates to the field of writing instrument technology, and in particular to a multifunctional writing pen. Background Technology

[0002] As the most basic writing tool, writing pens have long been limited to single-function forms such as ballpoint pens, gel pens (solid ink pens), rollerball pens, pencils, and fountain pens. With the increasing prevalence of mobile offices, educational presentations, and electronic devices, the market has gradually seen the emergence of products with multi-functional integration features, such as small pens that can spray disinfectant or perfume. These multi-functional writing pens aim to reduce the number of items carried, improve portability, and enhance adaptability to various scenarios.

[0003] The aforementioned existing technical solutions have the following defects: the pen cap and end cap do not lock properly, triggering the spray module when the backpack is squeezed or dropped; when placed horizontally, upside down, or in high / low temperature / high altitude environments, changes in the pressure difference between the liquid tank and the ink chamber can cause leakage or ink ejection. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional writing pen to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A multifunctional writing pen includes a pen casing. The top of the pen casing has a through-hole extending vertically, the axis of which is collinear with the axis of the pen casing. The bottom of the pen casing has a fixedly mounted first annular protrusion, the axis of which is collinear with the axis of the pen casing. The inner diameter of the first annular protrusion is the same as the inner diameter of the first through-hole, and the outer diameter of the first annular protrusion is smaller than the outer diameter of the pen casing. The first annular protrusion communicates with the first through-hole. The bottom end of the pen casing has an external thread, and the top end of the first annular protrusion has an external thread. A pen refill has a pen tip fixedly mounted at one end. One end of the pen tip is detachably mounted on the top of the pen casing through a first through hole, and the other end of the pen refill extends to the outside of the first circular protrusion. The axis of the pen refill is collinear with the axis of the first through hole. A top cover has an integrally formed second circular protrusion on its top, the axis of which is collinear with the axis of the top cover. The bottom end of the second circular protrusion has an external thread, and a fragrance module is detachably mounted inside the second circular protrusion. The inner wall of the top cover has an internal thread, and the top cover is screwed to the pen casing. A bottom cover has an internal thread on its inner wall, and the bottom cover is screwed to the first circular protrusion.

[0006] By adopting the above technical solution, the installed fragrance module enhances the user experience and personalization, making the writing process more comfortable and pleasant. The top cover is screwed to the bottom of the pen shell through the internal thread on the inner bottom circumferential surface, which can effectively protect the pen tip from being squeezed and damaged. The bottom cover is screwed to the top of the first ring protrusion through the internal thread on the inner top circumferential surface, which further protects the pen refill and prevents it from being deformed or damaged by accidental squeezing when not in use or during carrying, thereby extending the pen's service life and ensuring the smoothness and reliability of writing.

[0007] In a further embodiment, a first spring is fixedly installed inside the top cover, the axis of the first spring being collinear with the axis of the top cover. A bushing is slidably installed inside the top cover, the bushing being located at the bottom of the first spring, the axis of the bushing being collinear with the axis of the first spring. A second annular protrusion is integrally formed on the top of the top cover, the axis of the second annular protrusion being collinear with the axis of the top cover, and the circumferential surface of the second annular protrusion is provided with external threads.

[0008] By adopting the above technical solution, the connection between the top cover and the pen shell can be made more secure, preventing the top cover from opening and soiling clothes or backpacks due to vibration when the pen is placed in a pocket or backpack.

[0009] In a further embodiment, the fragrance module includes a base, a ball bearing, a first sealing ring, a second sealing ring, a conduit, and a second spring. The top of the base has a second through-hole extending vertically, with the axis of the second through-hole being vertically aligned. The top of the base also has an integrally formed third annular protrusion, the axis of which is collinear with the axis of the second through-hole, and the third annular protrusion communicates with the second through-hole. The bottom of the base has an integrally formed fourth annular protrusion, the axis of which is collinear with the axis of the second through-hole, and the fourth annular protrusion communicates with the second through-hole. The outer diameter of the fourth annular protrusion is smaller than the outer diameter of the second annular protrusion. The base and the second annular protrusion are detachable. The base is installed with its bottom surface in contact with the top surface of the second ring protrusion. A first sealing ring is provided around the circumference of the fourth ring protrusion. The axis of the first sealing ring is collinear with the axis of the fourth ring protrusion. A ball is slidably installed inside the third ring protrusion. The axis of the ball is collinear with the axis of the third ring protrusion. A guide is slidably installed at the bottom of the ball. The axis of the guide is collinear with the axis of the ball. The top surface of the guide is in contact with the bottom surface of the ball. A second sealing ring is provided at the top of the guide. The axis of the first sealing ring is collinear with the axis of the guide. A second spring is fixedly installed at the bottom of the second sealing ring. The axis of the second spring is collinear with the axis of the second sealing ring (13).

[0010] By adopting the above technical solution, from the perspective of the overall operational stability of the fragrance module, the coaxial arrangement of the second spring and the second sealing ring helps maintain the smooth movement of components such as the ball bearing and the conduit. When the ball bearing is subjected to external force, the force transmitted to the second sealing ring through the second spring is axial and stable, which can ensure smooth sliding of the ball bearing within the third annular protrusion. At the same time, it ensures that the ball bearing can smoothly return to its original position under the restoring force of the second spring after being pressed, thereby ensuring that the fragrance module can continuously and stably release fragrance.

[0011] In a further embodiment, the bottom end of the second annular protrusion is screwed into the fragrance cap, and the axis of the fragrance cap is collinear with the axis of the second annular protrusion. By adopting the above technical solution, the fragrance cap design prevents the rollerball from being contaminated by external substances and also prevents the fragrance from evaporating.

[0012] In a further embodiment, a clearance groove (19) is provided at the top edge of the circumference of the pen shell (1). By adopting the above technical solution, the design of the avoidance groove can make the writer hold the writing tool more comfortable and the design more ergonomic.

[0013] In a further embodiment, the top of the bottom cover (6) is provided with a waist hole (20) that penetrates the rear cover. By adopting the above technical solution, the design of the back cover waist hole makes it easier to observe the ink content of the pen refill.

[0014] In summary, this utility model has the following beneficial effects: 1. The design of the first spring and bushing ensures a more secure connection between the top cover and the pen casing; 2. The fragrance module makes it easy to carry around the fragrance. 3. The fragrance module's rollerball design ensures even application and prevents leakage. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of the present invention, used to illustrate the connection relationship between the top cover, the back cover and the pen shell; Figure 2 This is a schematic diagram illustrating the connection between the pen casing and the pen refill structure of this utility model; Figure 3 This is a cross-sectional view of the present invention used to illustrate the structural connection between the pen shell and the fragrance module; Figure 4 This is a cross-sectional view of the present invention used to illustrate the structural connection of the fragrance module.

[0016] In the diagram, 1. Pen casing; 2. First ring protrusion; 3. Pen refill; 4. Pen tip; 5. Top cap; 6. Bottom cap; 7. First spring; 8. Bushing; 9. Second ring protrusion; 10. Base; 11. Ball bearing; 12. First sealing ring; 13. Second sealing ring; 14. Guide tube; 15. Second spring; 16. Third ring protrusion; 17. Fourth ring protrusion; 18. Fragrance cap; 19. Clearance groove; 20. Waist hole. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0019] Example 1: like Figures 1-4 As shown, a multifunctional writing pen includes a pen shell 1. The top of the pen shell 1 has a through hole running vertically through it, the axis of which is collinear with the axis of the pen shell 1. A first annular protrusion 2 is fixedly installed at the bottom of the pen shell 1, the axis of which is collinear with the axis of the pen shell 1. The inner diameter of the first annular protrusion 2 is the same as the inner diameter of the first through hole, and the outer diameter of the first annular protrusion 2 is smaller than the outer diameter of the pen shell 1. The first annular protrusion 2 communicates with the first through hole. The bottom end of the pen shell 1 has an external thread, and the top end of the first annular protrusion 2 also has an external thread. A pen refill 3 has a pen tip 4 fixedly installed at one end. The pen refill 3... One end of the tip 4 is detachably mounted on the top of the pen shell 1 through the first through hole, and the other end of the pen core 3 extends to the outside of the first annular protrusion 2. The axis of the pen core 3 is collinear with the axis of the first through hole. The top cover 5 has an integrally formed second annular protrusion 9 on its top. The axis of the second annular protrusion 9 is collinear with the axis of the top cover 5. The bottom end of the second annular protrusion 9 has an external thread. A fragrance module is detachably installed inside the second annular protrusion 9. The inner wall of the top cover 5 has an internal thread. The top cover 5 is screwed to the pen shell 1. The bottom cover 6 has an internal thread on the top of its inner wall. The bottom cover 6 is screwed to the first annular protrusion 2.

[0020] A first spring 7 is fixedly installed inside the top cover 5. The axis of the first spring 7 is collinear with the axis of the top cover 5. A bushing 8 is slidably installed inside the top cover 5. The bushing 8 is located at the bottom of the first spring 7. The axis of the bushing 8 is collinear with the axis of the first spring 7. A second annular protrusion 9 is integrally formed on the top of the top cover 5. The axis of the second annular protrusion 9 is collinear with the axis of the top cover 5. The circumferential surface of the second annular protrusion 9 is provided with external threads.

[0021] The fragrance module includes a base 10, a ball bearing 11, a first sealing ring 12, a second sealing ring 13, a conduit 14, and a second spring 15. The top of the base 10 has a through-hole extending vertically, with its axis vertically aligned. The top inner diameter of the through-hole is smaller than its bottom inner diameter. The top of the base 10 also has an integrally formed third annular protrusion 16, whose axis is collinear with the axis of the second through-hole. The third annular protrusion 16 communicates with the second through-hole, and its top inner diameter is smaller than its bottom inner diameter. The top inner diameter of the third annular protrusion 16 is smaller than the diameter of the ball bearing, while its bottom inner diameter matches the top inner diameter of the second through-hole. The bottom of the base 10 has an integrally formed fourth annular protrusion 17, whose axis is collinear with the axis of the second through-hole. The top inner diameter of the fourth annular protrusion 17 matches the bottom inner diameter of the second through-hole, and it communicates with the second through-hole. The inner diameter of the top of the fourth annular protrusion 17 is smaller than its inner diameter at the bottom. The outer diameter of the fourth annular protrusion 17 is smaller than that of the second annular protrusion 9. The base 10 and the second annular protrusion 9 are detachably installed. The bottom end face of the base 10 is in contact with the top end face of the second annular protrusion 9. A first sealing ring 12 is provided around the circumference of the fourth annular protrusion 17. The axis of the first sealing ring 12 is collinear with the axis of the fourth annular protrusion 17. A ball bearing 11 is slidably installed inside the third annular protrusion 16. The axis of the ball bearing 11 is... The axis of the third annular protrusion 16 is collinear with that of the ball 11. A guide tube 14 is slidably mounted on the bottom of the ball 11. The axis of the guide tube 14 is collinear with that of the ball 11. The top surface of the guide tube 14 is in contact with the bottom surface of the ball 11. A second sealing ring 13 is provided at the top of the guide tube 14. The axis of the first sealing ring 12 is collinear with that of the guide tube 14. A second spring 15 is fixedly mounted at the bottom of the second sealing ring 13. The axis of the second spring 15 is collinear with that of the second sealing ring 13.

[0022] The bottom end of the second annular protrusion 9 is screwed into the fragrance cap. The axis of the fragrance cap 18 is collinear with the axis of the second annular protrusion 9. A relief groove 19 is provided at the top of the circumference of the pen shell 1.

[0023] Specific implementation process: Insert the pen refill 3 into the pen shell 1, screw the bottom cover 6 to the first annular protrusion, and then screw the top cover 5 to the pen shell 1. The operator presses the top cover 5 and the pen shell 1 together. Under the pressure, the pen shell 1 pushes the bushing 8, and the bushing 8 squeezes the first spring 7, causing the pen shell 1 to enter the top cover 5 more deeply. Then screw the pen shell 1 and the top cover 5 together. At this time, the two are more firmly fixed. The installation is complete. Unscrew the fragrance cap 18, take out the base 10, add an appropriate amount of your favorite perfume to the second annular protrusion 9, and put the base 1... 0. Reinstall and fix. Due to the presence of the first sealing ring 12, the base 10 and the second annular protrusion 9 can form a sealing structure. Invert the top cover 5. When in use, press the ball 11 so that the ball 11 slightly pushes the second sealing ring 13 to move. The second sealing ring 13 pushes the second spring 15. Under the action of pressure, the perfume will enter the tube 14. The perfume will be generated on the surface of the ball 11 through the tube 14. Then roll it to apply perfume to the area to be wiped. After wiping, the ball 11 will return to its original position under the action of the second spring 15.

[0024] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0025] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A multifunctional writing pen, characterized in that, include: The pen shell (1) has a first through hole extending vertically through its top. The axis of the first through hole is collinear with the axis of the pen shell (1). A first annular protrusion (2) is fixedly installed at the bottom of the pen shell (1). The axis of the first annular protrusion (2) is collinear with the axis of the pen shell (1). The inner diameter of the first annular protrusion (2) is the same as the inner diameter of the first through hole. The outer diameter of the first annular protrusion (2) is smaller than the outer diameter of the pen shell (1). The first annular protrusion (2) is connected to the first through hole. The bottom end of the pen shell (1) is provided with an external thread. The top end of the first annular protrusion (2) is provided with an external thread. Pen refill (3), one end of which is fixedly mounted with a pen tip (4), one end of the pen tip (4) of the pen refill (3) is detachably mounted on the top of the pen shell (1) through the first through hole, and the other end of the pen refill (3) extends to the outside of the first annular protrusion (2). The axis of the pen refill (3) is collinear with the axis of the first through hole. The top cover (5) has an integrally formed second annular protrusion (9) on its top. The axis of the second annular protrusion (9) is collinear with the axis of the top cover (5). The bottom end of the second annular protrusion (9) is provided with an external thread. A fragrance module is detachably installed inside the second annular protrusion (9). The inner wall of the top cover (5) is provided with an internal thread. The top cover (5) is screwed to the pen shell (1). The bottom cover (6) has an internal thread at the top of its inner wall and is screwed to the first annular protrusion (2).

2. The multifunctional writing pen according to claim 1, characterized in that: A first spring (7) is fixedly installed inside the top cover (5). The axis of the first spring (7) is collinear with the axis of the top cover (5). A bushing (8) is slidably installed inside the top cover (5). The bushing (8) is located at the bottom of the first spring (7). The axis of the bushing (8) is collinear with the axis of the first spring (7).

3. A multifunctional writing pen according to claim 1, characterized in that: The fragrance module includes a base (10), a ball bearing (11), a first sealing ring (12), a second sealing ring (13), a conduit (14), and a second spring (15). The top of the base (10) has a second through hole extending vertically through it. The axis of the second through hole is vertically aligned. The top of the base (10) has an integrally formed third annular protrusion (16). The axis of the third annular protrusion (16) is collinear with the axis of the second through hole, and the third annular protrusion (16) communicates with the second through hole. The bottom of the base (10) has an integrally formed fourth annular protrusion (17). The axis of the fourth annular protrusion (17) is collinear with the axis of the second through hole, and the fourth annular protrusion (17) communicates with the second through hole. The outer diameter of the fourth annular protrusion (17) is smaller than the outer diameter of the second annular protrusion (9). The base (10) and the second annular protrusion (9) are detachable. The bottom of the base (10)... The end face is in contact with the top face of the second annular protrusion (9). The fourth annular protrusion (17) is circumferentially covered with a first sealing ring (12). The axis of the first sealing ring (12) is collinear with the axis of the fourth annular protrusion (17). A ball (11) is slidably installed inside the third annular protrusion (16). The axis of the ball (11) is collinear with the axis of the third annular protrusion (16). A guide tube (14) is slidably installed at the bottom of the ball (11). The axis of the guide tube (14) is collinear with the axis of the ball (11). The top face of the guide tube (14) is in contact with the bottom face of the ball (11). A second sealing ring (13) is provided at the top of the guide tube (14). The axis of the first sealing ring (12) is collinear with the axis of the guide tube (14). A second spring (15) is fixedly installed at the bottom of the second sealing ring (13). The axis of the second spring (15) is collinear with the axis of the second sealing ring (13).

4. A multifunctional writing pen according to claim 2, characterized in that: The bottom end of the second annular protrusion (9) is screwed into the fragrance cover (18), and the axis of the fragrance cover (18) is collinear with the axis of the second annular protrusion (9).

5. A multifunctional writing pen according to claim 1, characterized in that: The top of the circumference of the pen shell (1) is provided with a relief groove (19).

6. A multifunctional writing pen according to claim 1, characterized in that: The top of the bottom cover (6) is provided with a waist hole (20) that penetrates the rear cover.

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