A new liquid direct type fluorescent pen

Abstract

The utility model relates to writing instrument technical field, concretely is a novel straight liquid formula highlighter, including thick highlighter body, thin highlighter body and assembly device, the bottom end threaded mounting of thick highlighter body has first top cover, the top end threaded mounting of thin highlighter body has second top cover, first top cover with second top cover is connected through assembly device, when the mounting block all go into the mounting groove, the wedge block loses the supporting force, spring stretches, the wedge block will automatically slide into the wedge groove of mounting block side wall due to the action of spring, completes the locking of mounting block, realizes thick and thin highlighter body and thin highlighter body fixed connection, through the cooperation of wedge block and wedge groove, plus the spring elasticity support, ensure that the structure after combination is stable, will not easily loosen or fall off, this combinable design provides more possibility, both satisfies the marking demand under different scenes, and increases the interestingness and attraction of product.

Description

Technical Field

[0001] This utility model relates to the field of writing instrument technology, specifically a novel direct-liquid fluorescent pen. Background Technology

[0002] As we all know, traditional direct-liquid highlighters are widely used in daily learning, office and other scenarios. To make them easier for people to use, these highlighters are usually equipped with a thick tip at one end for highlighting large areas, and a thin tip at the other end for finer text or line marking. Although this design meets users' needs for different thicknesses of marking, they have some significant limitations.

[0003] First, the design of traditional direct-ink dual-ended highlighters is usually fixed, meaning that the thick and thin marking parts at both ends are not detachable or interchangeable. This means that once one end runs out of ink or is damaged, the entire highlighter needs to be replaced, increasing the cost of use and being detrimental to the environment. In addition, due to the design limitations at both ends, users cannot flexibly choose which type of marking tool to carry according to specific needs and must always carry the entire dual-ended highlighter, which is not convenient in some situations. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a novel direct-liquid fluorescent pen.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: A novel direct-liquid highlighter pen, comprising a coarse highlighter body, a fine highlighter body, and an assembly device. A first top cover is threaded onto the bottom end of the coarse highlighter body, and a second top cover is threaded onto the top end of the fine highlighter body. The first and second top covers are connected via the assembly device. The assembly device includes a mounting block, a mounting groove, a sliding groove, a spring, a wedge block, a wedge groove, an L-shaped groove, and an L-shaped rod. The mounting block is mounted on the bottom wall of the first top cover. The second top cover has a mounting groove at its top, the mounting block is adapted to the mounting groove, the mounting groove has a sliding groove, the sliding groove has a spring installed in it, the end of the spring away from the sliding groove has a wedge block slidably connected to the sliding groove, the bottom end of the sliding groove has an L-shaped groove that extends through the outside of the second top cover, the bottom wall of the wedge block has an L-shaped rod installed, the L-shaped rod is slidably connected to the L-shaped groove, the side wall of the mounting block has a wedge groove, and the wedge block is adapted to the wedge groove.

[0008] Furthermore, the present invention is improved in that the guide groove is installed at both the front and rear ends of the slide groove, and the guide block is installed at both the front and rear ends of the wedge block, and the guide block and the guide groove are slidably connected.

[0009] Furthermore, the present invention is improved in that a guide rod is installed in the guide groove, and the guide rod and the guide block are slidably connected.

[0010] Furthermore, the present invention is improved in that both the guide groove and the guide block are cylindrical in design.

[0011] Furthermore, the present invention is improved in that a protective cover for protecting the L-shaped rod is installed on the outer wall of the second top cover, the protective cover having a cylindrical groove in the middle, and a cylindrical cover being installed at the end of the L-shaped rod, the cylindrical cover and the cylindrical groove being slidably connected.

[0012] Furthermore, an improvement of this utility model is that an anti-slip pad is installed at the end of the cylindrical cover.

[0013] Furthermore, the present invention is improved in that both the mounting block and the mounting groove are semi-cylindrical designs.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a novel direct-liquid highlighter, which has the following beneficial effects:

[0016] This new type of direct-liquid highlighter features a specially designed assembly mechanism. The combination of wedge blocks and wedge grooves, along with spring support, ensures structural stability after assembly, preventing loosening or detachment. Assembly and disassembly are completed with a simple pressing motion, requiring no additional tools, greatly simplifying user operation and reducing problems caused by misuse. Users can choose to use either the thick or thin highlighter individually, or easily combine them, significantly improving flexibility. Its modular design makes refilling ink or replacing parts simpler and faster, reducing maintenance costs and complexity. Compared to traditional single-function highlighters, this combinable design offers more possibilities, meeting marking needs in different scenarios while increasing the product's fun and appeal. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from a first angle;

[0018] Figure 2 This is a two-dimensional structural diagram of the present invention from a second angle;

[0019] Figure 3This is a half-section three-dimensional structural diagram of the first form of the second top cover of this utility model;

[0020] Figure 4 This is a schematic diagram of the second form of the second top cover of this utility model.

[0021] In the diagram: 1. Coarse highlighter body; 2. Fine highlighter body; 3. First top cover; 4. Second top cover; 5. Mounting block; 6. Mounting groove; 7. Slide groove; 8. Spring; 9. Wedge block; 10. Wedge groove; 11. L-shaped groove; 12. L-shaped rod; 13. Guide groove; 14. Guide block; 15. Guide rod; 16. Protective cover; 17. Cylindrical groove; 18. Cylindrical cover. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4A novel direct-liquid highlighter includes a coarse highlighter body 1, a fine highlighter body 2, and an assembly device. A first top cover 3 is threaded onto the bottom end of the coarse highlighter body 1, and a second top cover 4 is threaded onto the top end of the fine highlighter body 2. The first top cover 3 and the second top cover 4 are connected by the assembly device. The assembly device includes a mounting block 5, a mounting groove 6, a sliding groove 7, a spring 8, a wedge block 9, a wedge groove 10, an L-shaped groove 11, and an L-shaped rod 12. The mounting block 5 is mounted on the bottom wall of the first top cover 3, and the mounting groove 6 is formed at the top end of the second top cover 4. The mounting block 5 and the mounting groove 6 are adapted to each other. The sliding groove 7 is formed within the mounting groove 6, and the spring 8 is installed within the sliding groove 7. The spring 8 is located away from... One end of the slide groove 7 is fitted with a wedge-shaped block 9 that is slidably connected to the slide groove 7. The bottom end of the slide groove 7 has an L-shaped groove 11 that penetrates the outside of the second top cover 4. An L-shaped rod 12 is mounted on the bottom wall of the wedge-shaped block 9, and the L-shaped rod 12 and the L-shaped groove 11 are slidably connected. A wedge-shaped groove 10 is formed on the side wall of the mounting block 5, and the wedge-shaped block 9 and the wedge-shaped groove 10 are adapted to each other. In this embodiment, during use, both the coarse highlighter body 1 and the fine highlighter body 2 use a direct liquid ink supply system. The threaded connection between the first top cover 3 and the second top cover 4 maintains the internal sealing of the coarse highlighter body 1 and the fine highlighter body 2, and allows for quick opening when ink needs to be added. When the coarse highlighter body 1 and the fine highlighter body 2 need to be used together... First, align the mounting block 5 at the bottom of the first top cover 3 with the mounting groove 6 at the top of the second top cover 4 and insert it. At this time, the wedge block 9 will first contact the mounting block 5. Then, as the mounting block 5 continues to enter, the wedge block 9 compresses the spring 8 in the slide groove 7 and retracts into the slide groove 7. When the mounting block 5 is fully inserted into the mounting groove 6, the wedge block 9 loses its supporting force, the spring 8 extends, and the wedge block 9 will automatically slide into the wedge groove 10 on the side wall of the mounting block 5 due to the action of the spring 8, thus locking the mounting block and fixing the thick and thin highlighter bodies 2 and the thin highlighter body 2. When it is necessary to use the thick and thin highlighter bodies 2 and the thin highlighter body 2 separately, simply reverse the operation and press the L-shaped rod 12 protruding from the outer wall of the second top cover 4. The L-shaped rod 12 slides in the L-shaped groove 11. The wedge block 9, located in the slide groove 7, is pushed, and the spring 8 in the slide groove 7 is compressed, causing the wedge block 9 to disengage from the wedge groove 10. This promptly releases the lock on the mounting block 5, allowing the mounting block 5 to be easily pulled out. This separates the thick and thin highlighter bodies 2 for individual operation. This design allows users to choose to use either the thick or thin highlighter separately according to their needs, or to conveniently and quickly combine them for use, greatly improving the flexibility of use. The combined highlighter not only reduces the risk of loss but is also easier to carry and manage, making it especially practical when working or studying outside. The cooperation between the wedge block 9 and the wedge groove 10, along with the elastic support of the spring 8, ensures the stability of the combined structure, preventing it from easily loosening or falling off.This design takes into account users' actual operating habits, allowing for assembly and disassembly with a simple pressing motion, requiring no additional tools and greatly simplifying user operation. Compared to traditional single-function highlighters, this combinable design offers more possibilities, meeting marking needs in different scenarios while increasing the product's fun and appeal.

[0024] Preferably, in this embodiment, guide grooves 13 are installed at both ends of the slide groove 7, and guide blocks 14 are installed at both ends of the wedge block 9. The guide blocks 14 and the guide grooves 13 are slidably connected. As the mounting block 5 continues to advance, the guide blocks 14 slide along the guide grooves 13 to ensure that the wedge block 9 can move smoothly. Due to the presence of the guide blocks 14 and the guide grooves 13, even if there is a slight angular deviation during operation, it can be automatically adjusted to the correct position through the guiding mechanism. The design of the guide blocks 14 and the guide grooves 13 ensures the linear movement of the wedge block 9 in the slide groove 7, reduces misalignment or jamming caused by improper operation, and improves the accuracy and efficiency of the assembly and disassembly process.

[0025] Preferably, in this embodiment, a guide rod 15 is installed in the guide groove 13, and the guide rod 15 and the guide block 14 are slidably connected. The presence of the guide rod 15 provides a more precise movement path for the guide block 14, which ensures that the wedge block 9 can move smoothly along the predetermined straight direction, improves the accuracy in the assembly and disassembly process, and reduces misalignment or jamming caused by improper operation.

[0026] Preferably, in this embodiment, both the guide groove 13 and the guide block 14 are cylindrical. The cylindrical design can ensure that the contact surface of the guide block 14 in the guide groove 13 is minimized, thereby effectively reducing the friction between the two. Compared with square or other shaped designs, the cylindrical surface provides a smoother contact method, allowing the guide block 14 to slide more smoothly on the guide rod 15 and reducing wear.

[0027] Preferably, in this embodiment, a protective cover 16 is installed on the outer wall of the second top cover 4 to protect the L-shaped rod 12. A cylindrical groove 17 is provided in the middle of the protective cover 16, and a cylindrical cover 18 is installed at the end of the L-shaped rod 12. The cylindrical cover 18 and the cylindrical groove 17 are slidably connected. The protective cover 16 can effectively prevent the user from accidentally touching or pulling the L-shaped rod 12, thereby preventing unnecessary disassembly or unlocking actions and ensuring the stability of the fluorescent pen assembly. When operation is required, the user can control the L-shaped rod 12 by pushing the cylindrical cover 18. This not only facilitates the user's actual operation, but also improves the intuitiveness and convenience of use, making the overall design more compact and beautiful.

[0028] Preferably, in this embodiment, an anti-slip pad is installed at the end of the cylindrical cover 18. The anti-slip pad increases the friction between the user's fingers and the cylindrical cover 18, making it easier and more comfortable to push the cylindrical cover 18, especially for users with less hand strength or wet hands, making it easier to operate.

[0029] Preferably, in this embodiment, both the mounting block 5 and the mounting groove 6 are semi-cylindrical designs. The semi-cylindrical design has natural guiding characteristics, which means that even if there is a slight angular deviation during initial insertion, it can automatically adjust to the correct alignment position through the adaptive characteristics of the shape, simplifying the alignment steps in the assembly process.

[0030] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel direct-liquid highlighter, comprising a coarse highlighter body (1), a fine highlighter body (2), and an assembly device, characterized in that: The bottom end of the coarse highlighter body (1) is threaded with a first top cover (3), and the top end of the fine highlighter body (2) is threaded with a second top cover (4). The first top cover (3) and the second top cover (4) are connected by the assembly device, which includes a mounting block (5), a mounting groove (6), a sliding groove (7), a spring (8), a wedge block (9), a wedge groove (10), an L-shaped groove (11), and an L-shaped rod (12). The mounting block (5) is installed on the bottom wall of the first top cover (3), and the mounting groove (6) is opened at the top end of the second top cover (4). The mounting block (5) and the mounting groove (6) are connected by the assembly device. The mounting groove (6) is provided with a sliding groove (7), and a spring (8) is installed in the sliding groove (7). A wedge block (9) is installed at the end of the spring (8) away from the sliding groove (7) and is slidably connected to the sliding groove (7). An L-shaped groove (11) is provided at the bottom end of the sliding groove (7) and extends through the outside of the second top cover (4). An L-shaped rod (12) is installed on the bottom wall of the wedge block (9). The L-shaped rod (12) and the L-shaped groove (11) are slidably connected. A wedge groove (10) is provided on the side wall of the mounting block (5). The wedge block (9) and the wedge groove (10) are adapted to each other.

2. The novel direct-liquid fluorescent pen according to claim 1, characterized in that: The guide groove (13) is installed at both the front and rear ends of the slide (7), and the guide block (14) is installed at both the front and rear ends of the wedge block (9). The guide block (14) and the guide groove (13) are slidably connected.

3. A novel direct-liquid fluorescent pen according to claim 2, characterized in that: A guide rod (15) is installed in the guide groove (13), and the guide rod (15) and the guide block (14) are slidably connected.

4. A novel direct-liquid fluorescent pen according to claim 3, characterized in that: Both the guide groove (13) and the guide block (14) are cylindrical.

5. A novel direct-liquid fluorescent pen according to claim 4, characterized in that: The outer wall of the second top cover (4) is fitted with a protective cover (16) to protect the L-shaped rod (12). A cylindrical groove (17) is provided in the middle of the protective cover (16). A cylindrical cover (18) is installed at the end of the L-shaped rod (12). The cylindrical cover (18) and the cylindrical groove (17) are slidably connected.

6. A novel direct-liquid fluorescent pen according to claim 5, characterized in that: The end of the cylindrical cover (18) is fitted with an anti-slip pad.

7. A novel direct-liquid fluorescent pen according to claim 6, characterized in that: Both the mounting block (5) and the mounting groove (6) are semi-cylindrical designs.

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