Multicolor pen

Abstract

The utility model discloses a multicolor pen which comprises a pen shell and a plurality of pen refills movably arranged in the pen shell in the axial direction, a pressing locking mechanism is installed at the upper end of each pen refill, and the pressing locking mechanisms are used for driving the pen refills to move during pressing. The pressing locking mechanism is arranged on the pen shell so that a pen point installed at the lower end of the pen refill can stretch out of the pen shell, and meanwhile the pressing locking mechanism and the pen shell can be locked. Wherein the diameter of at least one refill is different from the diameters of the other refills, so that the ink filling amount of at least one refill is different from the ink filling amount of the other refills. According to the multi-color pen, the thicknesses of the refills are configured according to the use frequency, so that the ink filling quantities of the refills with different colors are different, sufficient ink supply of the refills with common colors can be ensured, a user does not need to frequently replace the refills or worry about exhaustion of the ink with the common colors in the use process, and the overall service life of the multi-color pen is prolonged; the use cost is reduced.

Description

Technical Field

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

[0002] As writing and drawing tools continue to evolve, multi-color pens, with their ability to offer a variety of color options, have brought great convenience to users and have been widely used in fields such as learning, office work, and artistic creation.

[0003] Traditional multicolor pens typically use a standardized ink filling method, meaning each color refill contains the same amount of ink. However, in actual use, the frequency of use for different colors often varies significantly. For example, black and red are frequently used in daily writing and office work, while certain colors such as blue, brown, and yellow may only be used in special circumstances, and their usage frequency is far lower than that of black.

[0004] Traditional multicolor pens often encounter problems because they don't consider the frequency of color usage. For frequently used colors like black and red, the ink often runs out before other colors are fully replenished, preventing users from accessing the ink when needed and impacting work and study efficiency. Conversely, for infrequently used colors, the ink may not be completely used up within the pen's lifespan, resulting in waste. In today's environmentally conscious and resource-saving society, this design of multicolor pens that doesn't rationally allocate ink volume based on actual usage frequency is clearly unscientific, impractical, and user-friendly. To better meet user needs, enhance the value of multicolor pens, reduce ink waste, and optimize the user experience, it's necessary to develop a new type of multicolor pen that can adjust ink volume according to color usage frequency. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a multi-color pen that can rationally configure the ink volume according to the actual usage frequency of different colored ink cartridges, thereby improving usage efficiency, reducing ink waste, extending the overall lifespan of the multi-color pen, and lowering usage costs.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a multi-color pen, comprising: a pen shell and a plurality of pen refills movably built into the pen shell along the axis, wherein each pen refill has a pressing and locking mechanism installed at its upper end, the pressing and locking mechanism being used to drive the pen refill to move when pressed, so that the pen tip installed at the lower end of the pen refill extends out of the pen shell, and the pressing and locking mechanism can also lock with the pen shell; wherein, the diameter of at least one pen refill is different from the diameter of the other pen refills, so that the ink volume of at least one pen refill is different from the ink volume of the other pen refills.

[0007] As a further improvement of this utility model, a limiting component is installed inside the pen shell. The limiting component has the same number of limiting holes as the pen refills along the circumferential direction, and the multiple pen refills are inserted into the multiple limiting holes one by one.

[0008] As a further improvement of this utility model, the pressing locking mechanism includes a pressing rod and a spring. The pressing rod is slidably mounted on the pen shell and fixedly connected to the pen refill. The spring is fitted on the pen refill, and the two ends of the spring elastically abut against the limiting member and the pressing rod, respectively.

[0009] As a further improvement of this utility model, the pen shell is provided with the same number of receiving grooves as the pen refill along the axial direction. The cross-section of the receiving groove is T-shaped, and it includes a first sliding groove and a second sliding groove that are interconnected. The second sliding groove of each of the multiple receiving grooves extends toward the center line of the pen shell and is distributed radially. At the same time, each second sliding groove is provided with limiting ribs on both sides, and the bottom of each limiting rib is provided with a locking groove.

[0010] The pressing rod has a main body that slides in the first groove and an unlocking part that extends from the inner side of the main body toward the center line of the pen shell. The upper end of the main body has a locking platform that is used to lock with the locking groove when the pressing rod is pressed. The unlocking part slides in the second groove, and the upper and lower ends of the unlocking part are respectively provided with a first inclined surface and a second inclined surface. When one of the pressing rods is in the locked state, at least a portion of the first inclined surface on the pressing rod can be axially opposite to the second inclined surface on the other pressing rods.

[0011] As a further improvement of this utility model, the outer peripheral surface of the pen shell is provided with limiting grooves that are the same number as the receiving grooves and are one-to-one opposite each other. The pressing rod is also provided with a button part located outside the main body. The button part passes through the limiting groove and protrudes outward from the pen shell.

[0012] As a further improvement of this utility model, the pressing rod is also provided with a protrusion at the lower end of the main body, and the protrusion is inserted into the upper end of the pen refill in an interference fit manner.

[0013] As a further improvement of this utility model, the inks filled in the multiple pen refills are all of different colors, and the inks filled in any one of the pressing rods and the pen refills connected to it are of the same color.

[0014] As a further improvement of this utility model, the number of pen refills is 2 to 12.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a multi-color pen by configuring the thickness of the pen refill according to the frequency of use, thereby allowing for differences in the amount of ink filled in different colored refills. This ensures a sufficient supply of ink for frequently used colors, eliminating the need for users to frequently replace refills or worry about running out of ink in their favorite colors. This significantly improves writing and drawing efficiency. Furthermore, for refills of colors used less frequently, the amount of ink filled can be reduced, avoiding waste caused by long-term idle ink. Since the ink in frequently used colors can meet the needs of long-term use, while the ink in less frequently used colors can meet occasional needs, the ink consumption of each color in the multi-color pen is more coordinated, thus extending the overall lifespan of the pen. Users also do not need to frequently purchase new refills or the entire multi-color pen due to the rapid depletion of ink in their favorite colors, effectively reducing usage costs. At the same time, this innovative design concept opens up new avenues for the development of multi-color pens, meeting the diverse needs of the market. In addition, the press-lock mechanism used in this utility model has a simple structure, uses few parts, and is easy to assemble. Attached Figure Description

[0016] Figure 1 This is a perspective view of the multi-color pen of this utility model;

[0017] Figure 2 This is an exploded view of the multi-color pen of this utility model;

[0018] Figure 3 This is a left view of the multi-color pen of this utility model;

[0019] Figure 4 This utility model provides a multi-colored pen tip. Figure 3 A cross-sectional view along the AA direction;

[0020] Figure 5 This utility model provides a multi-colored pen tip. Figure 3 Cross-sectional view along the BB direction;

[0021] Figure 6 This is a perspective view of the press lever of the multi-color pen of this utility model;

[0022] Figure 7 This is a partial perspective view of the upper barrel of the multicolor pen of this utility model;

[0023] Figure 8 This is a cross-sectional view showing one of the pressing levers of the multicolor pen of this utility model locked to the pen shell;

[0024] Figure 9 This utility model Figure 8 Enlarged view of section C.

[0025] Referring to the accompanying drawings, the following explanations are provided:

[0026] 1. Pen casing; 11. Upper rod; 111. Receiving groove; 1111. First sliding groove; 1112. Second sliding groove; 112. Limiting rib; 1121. Locking groove; 113. Limiting sliding groove; 12. Grip; 13. Tip sleeve; 2. Pen refill; 3. Pen tip; 4. Limiting component; 5. Pressing rod; 51. Main body; 511. Locking platform; 52. Unlocking part; 521. First inclined surface; 522. Second inclined surface; 53. Button part; 54. Protruding post; 6. Spring. Detailed Implementation

[0027] The preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] See Figures 1 to 9 This utility model provides a multi-color pen, comprising: a pen shell 1 and a plurality of pen refills 2 movably embedded in the pen shell 1 along an axial direction. Preferably, the plurality of pen refills 2 are distributed in a ring at intervals within the pen shell 1. Each pen refill 2 is filled with ink, and a pen tip 3 is installed at the lower end of each pen refill 2. A pressing and locking mechanism is installed at the upper end of each pen refill 2. The pressing and locking mechanism is used to move the pen refill 2 when pressed, so that the pen tip 3 installed at the lower end of the pen refill 2 extends out of the pen shell 1 for writing or drawing; at the same time, the pressing and locking mechanism can also lock with the pen shell 1, so that the pen tip 3 can remain in the state of extending out of the pen shell 1.

[0029] It is worth mentioning that at least one refill 2 has a different diameter than the other refills 2, so that the ink volume of at least one refill 2 differs from that of the other refills 2. Since the refills 2 of each color are used at different frequencies, for example, the refills 2 filled with black ink are generally used more, so the black refills 2 can be made thicker to increase their ink volume, while the refills 2 of other colors that are used less frequently can have the same thickness. Of course, the thickness of the refills 2 of different colors can also be set to multiple specifications to match the usage frequency of each color.

[0030] This multi-color pen, by configuring the thickness of the refill 2 according to usage frequency, ensures that the ink volume of different colored refills 2 varies, guaranteeing an ample supply of ink for frequently used colors. Users do not need to frequently replace refills 2 or worry about running out of ink in their favorite colors, thus significantly improving writing and drawing efficiency. Furthermore, for less frequently used colors, the amount of ink to fill can be reduced, avoiding waste caused by prolonged ink storage. Since the ink in frequently used colors 2 can meet long-term usage needs, while the ink in less frequently used colors 2 can meet occasional needs, the ink consumption of each color in the multi-color pen is more coordinated, extending the overall lifespan of the pen. In addition, users do not need to frequently purchase new refills 2 or the entire multi-color pen due to the rapid depletion of ink in their favorite colors, effectively reducing usage costs. This innovative design concept opens up new avenues for the development of multi-color pens, meeting diverse market demands.

[0031] In this embodiment, the number of pen refills 2 is 2 to 12. For example, if there are 2 pen refills 2, the ink colors of the two refills 2 are black and red, respectively. The black pen refill 2 is thicker than the red pen refill 2, meaning that the black pen refill 2 contains more ink than the red pen refill 2. Alternatively, if there are 6 pen refills 2, the ink colors of the 6 pen refills 2 are black, red, blue, yellow, brown, and green, respectively. In terms of the diameter of the pen refills 2, black > red > blue, yellow, brown, and green, where the blue, yellow, brown, and green pen refills 2 have the same diameter.

[0032] Preferably, the lengths of the multiple pen refills 2 are the same.

[0033] See Figure 2 and Figure 4 A limiting component 4 is installed inside the pen casing 1. The limiting component 4 has the same number of limiting holes as the pen refill 2 along the circumferential direction. Multiple pen refills 2 are inserted into multiple limiting holes in a one-to-one correspondence, which is used to guide the extension and retraction movement of the pen refill 2 and improve the stability of the extension and retraction movement of the pen refill 2.

[0034] In this embodiment, the pen casing 1 includes an upper rod 11, a grip 12, and a tip sleeve 13. A limiting member 4 is installed inside the lower end of the upper rod 11 and stops on a step provided along the inner wall of the upper rod 11. The upper end of the grip 12 is threaded to the upper rod 11 and presses the limiting member 4 tightly. The tip sleeve 13 is threaded to the lower end of the grip 12, and the pen tip 3 is located inside the tip sleeve 13. When one of the pressing locking mechanisms is pressed down, the pressing locking mechanism drives the corresponding pen core 2 to move downward, causing the pen tip 3 to extend outward along the tip sleeve 13.

[0035] See Figures 2 to 4The pressing and locking mechanism includes a pressing rod 5 and a spring 6. The pressing rod 5 is slidably mounted on the upper rod 11 and fixedly connected to the pen refill 2. The spring 6 is fitted on the pen refill 2, and the two ends of the spring 6 elastically abut against the limiting member 4 and the pressing rod 5 respectively. The spring 6 always applies an upward elastic force to the pressing rod 5. Under the elastic force of the spring 6, the pressing rod 5 abuts against the top wall of the upper rod 11. In this state, the pen refill 2 is retracted into the pen shell 1.

[0036] See Figure 5 and Figure 7 The upper section of the upper rod 11 has the same number of accommodating slots 111 as the pen refill 2 along the axial direction. In this embodiment, there are three pen refills 2 and three accommodating slots 111. Figure 5 As shown, the accommodating groove 111 has a T-shaped cross-section and includes a first sliding groove 1111 and a second sliding groove 1112 that are interconnected. The first sliding groove 1111 is located on the outer side, and the second sliding groove 1112 is located on the inner side. The second sliding groove 1112 of each of the three accommodating grooves 111 extends towards the center line of the pen shell 1 and is distributed radially. At the same time, the three second sliding grooves 1112 are interconnected at the center line of the pen shell 1. In addition, each second sliding groove 1112 has a limiting rib 112 on both sides, and the bottom of the limiting rib 112 has a locking groove 1121.

[0037] See Figures 4 to 6 The pressing lever 5 has a main body 51, an unlocking part 52 extending from the inner side of the main body 51 toward the center line of the pen case 1, a button part 53 extending from the outer side of the main body 51 toward the direction opposite to the center line of the pen case 1, and a protrusion 54 integrally connected to the lower end of the main body 51.

[0038] The main body 51 is adapted to the size of the first slide groove 1111 and slides within the first slide groove 1111. The upper end of the main body 51 is provided with a locking platform 511, which is used to lock with the locking groove 1121 when the pressing rod 5 is pressed.

[0039] The unlocking part 52 and the button part 53 are both located on the upper part of the main body 51. The unlocking part 52 is slidably fitted in the second slide groove 1112, and the upper end of the unlocking part 52 is provided with a first inclined surface 521 and the lower end is provided with a second inclined surface 522.

[0040] In addition, the outer peripheral surface of the pen shell 1 is provided with limiting grooves 113 in the same number as the receiving grooves 111 and are one-to-one opposite each other. The button part 53 passes through the limiting grooves 113 and protrudes outward from the pen shell 1 to facilitate the user's pressing operation.

[0041] The protruding post 54 is inserted into the upper end of the pen refill 2 with an interference fit, so as to achieve a fixed connection between the pen refill 2 and the pressing rod 5, and is easy to assemble.

[0042] like Figure 8 and Figure 9 As shown, when in use, by pressing down the button part 53, the pressing rod 5 moves the corresponding pen refill 2 downward. Since the human hand has a radial force when pressing the button part 53, when the pressing rod 5 slides down until its top locking part 511 is lower than the limiting rib 112, the pressing rod 5 will move radially inward, so that the locking part 511 is locked in the locking groove 1121 at the bottom of the limiting rib 112, forming a lock. In this state, the pen tip 3 on the pen refill 2 extends out of the tip sleeve 13 for use.

[0043] When the pressing rod 5 is in the locked state, since the pressing rod 5 moves radially inward by a small distance, at least a portion of the first inclined surface 521 on the pressing rod 5 can be axially distributed relative to the second inclined surface 522 on other pressing rods 5. Thus, when pressing down on any other pressing rod 5, the other pressing rod 5 can push the first inclined surface 521 on the previously locked pressing rod 5 through its second inclined surface 522, pressing the previously locked pressing rod 5 to move radially outward, causing its locking part 511 to exit the locking groove 1121, and then move upward to reset under the elastic force of the spring 6.

[0044] As can be seen, the pressing and locking mechanism of this utility model has a simple structure, uses few parts, and is easy to assemble.

[0045] The ink in each of the multiple refills 2 is a different color, and the ink in any one of the pressing levers 5 and the refill 2 connected to it is the same color, so that the user can distinguish the refill 2 of the color to be used.

[0046] Many specific details have been set forth in the above description to provide a full understanding of this utility model. However, the above description is only a preferred embodiment of this utility model, and this utility model can be implemented in many other ways different from those described herein. Therefore, this utility model is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A multi-color pen, characterized in that, include: The pen housing (1) and a plurality of pen refills (2) are axially movable within the pen housing (1). Each pen refill (2) has a pressing and locking mechanism installed at its upper end. The pressing and locking mechanism is used to move the pen refill (2) when pressed, so that the pen tip (3) installed at the lower end of the pen refill (2) extends out of the pen housing (1). At the same time, the pressing and locking mechanism can also lock with the pen housing (1). The diameter of at least one pen refill (2) is different from the diameter of the other pen refills (2), so that the ink volume of at least one pen refill (2) is different from the ink volume of the other pen refills (2).

2. The multi-color pen according to claim 1, characterized in that: The pen casing (1) is equipped with a limiting member (4), and the limiting member (4) has the same number of limiting holes as the pen refill (2) along the circumferential direction. The multiple pen refills (2) are inserted into the multiple limiting holes one by one.

3. The multi-color pen according to claim 2, characterized in that: The pressing locking mechanism includes a pressing rod (5) and a spring (6). The pressing rod (5) is slidably mounted on the pen shell (1) and fixedly connected to the pen core (2). The spring (6) is fitted on the pen core (2), and the two ends of the spring (6) elastically abut against the limiting member (4) and the pressing rod (5) respectively.

4. The multi-color pen according to claim 3, characterized in that: The pen casing (1) has the same number of receiving grooves (111) as the pen refill (2) along the axial direction. The receiving groove (111) has a T-shaped cross-section and includes a first sliding groove (1111) and a second sliding groove (1112) that are interconnected. The second sliding groove (1112) of each of the multiple receiving grooves (111) extends toward the center line of the pen casing (1) and is distributed radially. At the same time, each second sliding groove (1112) has a limiting rib (112) on both sides and a locking groove (1121) at the bottom of the limiting rib (112). The pressing rod (5) has a main body (51) that slides in the first sliding groove (1111) and an unlocking part (52) that extends from the inner side of the main body (51) toward the center line of the pen shell (1). The upper end of the main body (51) has a locking plate (511) which is used to lock with the locking groove (1121) when the pressing rod (5) is pressed. The unlocking part (52) slides in the second sliding groove (1112) and the upper and lower ends of the unlocking part (52) are respectively provided with a first inclined surface (521) and a second inclined surface (522). When one of the pressing rods (5) is in the locked state, at least a portion of the first inclined surface (521) on the pressing rod (5) can be axially distributed relative to the second inclined surface (522) on the other pressing rods (5).

5. The multi-color pen according to claim 4, characterized in that: The outer circumferential surface of the pen shell (1) is provided with limiting grooves (113) that are the same number as the receiving grooves (111) and are one-to-one opposite each other. The pressing rod (5) is also provided with a button part (53) located outside the main body (51). The button part (53) passes through the limiting groove (113) and protrudes outward from the pen shell (1).

6. The multi-color pen according to claim 4, characterized in that: The pressing rod (5) is also provided with a protrusion (54) at the lower end of the main body (51), and the protrusion (54) is inserted into the upper end of the pen refill (2) in an interference fit manner.

7. The multi-color pen according to claim 3, characterized in that: The inks filled in the multiple refills (2) are all different colors, and the inks filled in any one of the pressing rods (5) and the refills (2) connected to it are the same color.

8. The multi-color pen according to claim 7, characterized in that: The number of the pen refills (2) is 2 to 12.

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