A marker

Abstract

The utility model relates to stationery technical field discloses a marker, including pen holder, the rotary block of rotation installation in pen holder top, fixed mounting in the inner wall of rotary block bottom and with the inner wall rotation connection of pen holder's hollow column, screw thread installs screw rod on the inner wall of hollow column, fixed mounting in the bottom end of screw rod and with the inner wall abutment of pen holder's sealing block, the utility model discloses through rotating rotary block, utilize the thread transmission of hollow column and screw rod and convert rotary motion into linear motion, drive sealing block to descend and compress pigment storage space, make liquid level active to move and keep contact with the pen head, simultaneously drive block tooth groove and the one -way meshing structure of ring triangular block, lock sealing block position after rotation stop, prevent pigment backflow because of vibration or pressure change, cooperate the airtight design of pen cover and form complete anti -evaporation system, have solved the problem that the pen head dries up because of traditional marker because liquid surface drops from mechanical transmission level.

Description

Technical Field

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

[0002] With the popularization of hand-drawn art and creative design, the performance optimization and user experience of markers, as mainstream drawing tools, have become the focus of the industry. The ink inside markers is liquid, and in traditional designs, the liquid-filling space inside the pen is fixed.

[0003] When used normally, if the marker is placed vertically with the tip down, the liquid will always be in contact with the tip due to gravity, and the drawing process will be smooth and unobstructed. However, when the marker is stored in a box placed horizontally, or is placed flat on a table when in use, problems arise. When the pen is placed horizontally, the liquid inside spreads, and compared with the vertical position, the liquid level is significantly lower due to the increased bottom area, and the liquid cannot maintain continuous contact with the tip.

[0004] This means that when users pick up the brush to paint again, they either have to wait for the paint to slowly seep into the brush tip, which takes a long time, or they have to forcefully flick the brush to make the paint come into contact with the brush tip quickly. However, flicking the brush is risky. If you use too much force, the paint may leak, which will not only dirty the surrounding environment, but may also waste the paint.

[0005] Therefore, a marker pen was designed. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by providing a marker pen that solves the problem of the liquid level decreasing due to internal liquid diffusion when the marker pen is placed horizontally, preventing continuous contact between the liquid and the pen tip. This forces users to wait for the ink to penetrate or flick the pen, which in turn poses a risk of ink leakage.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A marker pen includes a pen barrel, a rotating block rotatably mounted on the top of the pen barrel, a hollow column fixedly mounted on the inner wall of the bottom of the rotating block and rotatably connected to the inner wall of the pen barrel, a threaded rod threadedly mounted on the inner wall of the hollow column, and a sealing block fixedly mounted on the bottom end of the threaded rod and abutting against the inner wall of the pen barrel.

[0009] Preferably, the sealing block has a trapezoidal cross-section, and the side of the sealing block that contacts the pen barrel is made of rubber.

[0010] Preferably, the pen barrel is made of transparent plastic, a rubber pad is fixedly installed on the outer wall of the pen barrel, a pen tip is provided at the bottom of the pen barrel, and a pen cap is snapped onto the outer wall of the pen tip.

[0011] Preferably, the outer wall of the rotating block has several grooves, which are semi-circular in design.

[0012] Preferably, a ring is fixedly installed on the inner wall of the pen barrel, a triangular block is fixedly installed on the top of the ring, and an L-shaped groove is formed on the outer wall of the ring.

[0013] Preferably, a driving block is fixedly installed at the bottom of the hollow column, and the bottom of the driving block has multiple tooth grooves. The multiple tooth grooves are equally distributed, and the triangular block meshes with the tooth grooves.

[0014] Preferably, the triangular block is designed as a right triangle, and the longer right-angled side of the right triangle is designed in the horizontal direction, forming a one-way transmission structure of the ratchet gear.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] When this invention is in use, as the ink level drops, the user rotates the rotating block. The rotational motion is converted into linear motion by the threaded transmission of the hollow column and the threaded rod, causing the sealing block to move down and compress the ink storage space, thus actively raising the ink level to maintain contact with the pen tip. At the same time, the one-way meshing structure of the drive block's toothed groove and the circular triangular block locks the sealing block's position after rotation stops, preventing ink backflow due to vibration or pressure changes. Combined with the airtight design of the pen cap, this forms a complete anti-evaporation system. From a mechanical transmission perspective, this invention solves the problem of the pen tip drying out due to the drop in ink level in traditional markers, significantly improving the continuity and reliability of writing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the pen barrel and cap of this utility model.

[0020] Figure 3 This is a schematic diagram of the partial explosion structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0022] Figure 5 This is a partial exploded cross-sectional view of the front of this utility model.

[0023] Drawing number explanation: 1. Pen barrel; 11. Pen cap; 12. Pen tip; 13. Rubber pad; 2. Rotating block; 21. Groove; 22. Hollow column; 23. Drive block; 231. Tooth groove; 3. Threaded rod; 31. Sealing block; 4. Ring; 41. Triangular block; 42. L-shaped groove. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0026] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0027] It is understood that the term "a" should be understood as "at least one" or "one or more," that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0028] Please see Figure 1-5A marker pen includes a pen barrel 1, a rotating block 2 rotatably mounted on the top of the pen barrel 1, a hollow column 22 fixedly mounted on the inner wall of the bottom of the rotating block 2 and rotatably connected to the inner wall of the pen barrel 1, a threaded rod 3 threadedly mounted on the inner wall of the hollow column 22, and a sealing block 31 fixedly mounted on the bottom end of the threaded rod 3 and abutting against the inner wall of the pen barrel 1; the sealing block 31 has a trapezoidal cross-section, and the side of the sealing block 31 that contacts the pen barrel 1 is made of rubber; the pen barrel 1 is made of transparent plastic, a rubber pad 13 is fixedly mounted on the outer wall of the pen barrel 1, and a pen tip 12 is provided at the bottom end of the pen barrel 1, with a snap-fit ​​device on the outer wall of the pen tip 12. The pen is fitted with a pen cap 11; the outer wall of the rotating block 2 has several grooves 21, which are semi-circular in design; a ring 4 is fixedly installed on the inner wall of the pen barrel 1, and a triangular block 41 is fixedly installed on the top of the ring 4. An L-shaped groove 42 is opened on the outer wall of the ring 4; a driving block 23 is fixedly installed at the bottom of the hollow column 22, and multiple tooth grooves 231 are opened at the bottom of the driving block 23. The multiple tooth grooves 231 are equally distributed, and the triangular block 41 meshes with the tooth grooves 231; the triangular block 41 is designed as a right triangle, and the long right-angled side of the right triangle is designed in the horizontal direction, forming a one-way transmission structure of a ratchet gear.

[0029] A hollow column 22, which is rotatably mounted on the top of the pen barrel 1 via a rotating block 2, is fixedly mounted on the inner wall of the bottom of the block 2 and tightly rotatably connected to the inner wall of the pen barrel 1. This allows the user to control the rotation of the hollow column 22 by rotating the rotating block 2. The engagement between the threaded inner wall of the hollow column 22 and the threaded rod 3 ensures that the rotational motion can be efficiently and stably converted into linear motion. The sealing block 31, which is fixedly mounted at the bottom of the threaded rod 3, has a trapezoidal cross-section and is made of rubber on the side that contacts the pen barrel 1. This ensures that the sealing block 31 can always fit tightly against the inner wall of the pen barrel 1 when it moves inside the pen barrel 1, forming a reliable seal. The rubber material provides good elasticity and sealing performance, effectively preventing ink leakage and ensuring that the marker pen maintains stable performance in various usage scenarios.

[0030] The semi-circular grooves 21 on the outer wall of the rotating block 2 not only enhance its aesthetics but, more importantly, provide excellent anti-slip properties, allowing for easy operation even with wet or oily hands, greatly improving the user experience.

[0031] Because the pen barrel 1 is made of transparent plastic, users can clearly see the remaining amount of ink inside the pen barrel 1, allowing them to keep track of the ink usage. The rubber pad 13 fixedly installed on the outer wall of the pen barrel 1 provides users with a comfortable grip experience.

[0032] A ring 4, fixedly mounted on the inner wall of the pen barrel 1, has a triangular block 41 fixedly mounted on its top that meshes with the toothed groove 231 at the bottom of the drive block 23 at the bottom of the hollow column 22, forming a unidirectional transmission structure of a ratchet gear. When the user rotates the rotating block 2, the inclined surface of the toothed groove 231 of the drive block 23 contacts the inclined surface of the triangular block 41, generating a radial force. The ring 4 achieves elastic deformation through the L-shaped groove 42, allowing the triangular block 41 to displace briefly in the radial direction. After the toothed groove 231 passes over the triangular block 41, the ring 4 elastically recovers, and the triangular block 41 returns to its initial position, thus achieving unidirectional transmission and ensuring that the ink liquid can flow continuously and stably to the pen tip 12, guaranteeing the smoothness of drawing.

[0033] When the user stops rotating the rotating block 2, the triangular block 41 remains engaged with the toothed groove 231, forming a reliable locking mechanism. This design effectively prevents the threaded rod 3 from moving on its own due to vibration or pressure changes, ensuring the stability of the sealing block 31's position and thus maintaining a stable height of the ink within the pen barrel 1. Even during carrying or storage, the marker maintains stable performance without issues such as ink leakage or the pen tip 12 drying out.

[0034] The pen cap 11, which snaps onto the outer wall of the pen tip 12, tightly encloses the pen tip 12, providing effective protection. The design of the pen cap 11 not only prevents the pen tip 12 from being contaminated or damaged by the external environment but also reduces ink evaporation, extending the lifespan of the marker. When the user closes the pen cap 11, the cap and pen tip 12 form an airtight structure, further enhancing the anti-evaporation effect. This design ensures that the ink does not easily evaporate during storage, maintaining the vibrancy of the ink and writing quality, providing users with a more durable and stable user experience.

[0035] Workflow

[0036] The pen barrel 1 stores liquid pigment. The sealing block 31 is located above the liquid pigment surface inside the pen barrel 1 and achieves a sealed contact with the inner wall of the pen barrel 1 through a rubber material. The pen tip 12 is kept moist by capillary action. However, with use, the liquid pigment level may drop, which may cause the pen tip 12 to separate from the liquid surface. The toothed groove 231 at the bottom of the drive block 23 is engaged with the triangular block 41 at the top of the ring 4.

[0037] The user holds the rubber pad 13 on the outer wall of the pen barrel 1 for painting. To ensure that the ink liquid is always in contact with the pen tip 12, the user rotates the rotating block 2 clockwise according to the thread direction, ensuring that the sealing block 31 moves down. The rotating block 2 drives the hollow column 22 fixedly connected to the bottom to rotate synchronously. The thread on the inner wall of the hollow column 22 cooperates with the threaded rod 3 to convert the rotational motion into linear motion. When the hollow column 22 rotates, it drives the drive block 23 to rotate synchronously.

[0038] The inclined surface of the tooth groove 231 of the drive block 23 contacts the inclined surface of the triangular block 41, generating a radial component force. The ring 4 achieves elastic deformation through the L-shaped groove 42, allowing the triangular block 41 to displace briefly in the radial direction. After the tooth groove 231 passes over the triangular block 41, the ring 4 elastically recovers, and the triangular block 41 returns to its initial position. During reverse rotation, the vertical surface of the tooth groove 231 contacts the vertical surface of the triangular block 41, preventing relative movement and achieving one-way locking. Under the rotation of the hollow column 22, the threaded rod 3 moves downward along the axis of the pen barrel 1. The bottom end of the threaded rod 3... The sealing block 31 moves down synchronously. The trapezoidal cross-section design ensures that the rubber sealing surface is always in close contact with the inner wall of the pen barrel 1. The downward movement of the sealing block 31 reduces the ink storage space inside the pen barrel 1, so that the ink liquid maintains continuous contact with the pen tip 12, ensuring smooth writing. After the rotation stops, the triangular block 41 and the toothed groove 231 remain engaged to prevent the threaded rod 3 from moving on its own due to vibration or pressure changes. The sealing block 31 is locked in position, and the ink is kept at a stable height. When the pen cap 11 is closed, the pen cap 11 and the pen tip 12 form an airtight structure to prevent the ink from evaporating.

[0039] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A marker pen, characterized in that, The device includes a pen barrel (1), a rotating block (2) rotatably mounted on the top of the pen barrel (1), a hollow column (22) fixedly mounted on the bottom inner wall of the rotating block (2) and rotatably connected to the inner wall of the pen barrel (1), a threaded rod (3) threadedly mounted on the inner wall of the hollow column (22), and a sealing block (31) fixedly mounted on the bottom end of the threaded rod (3) and abutting against the inner wall of the pen barrel (1).

2. A marker pen according to claim 1, characterized in that: The sealing block (31) has a trapezoidal cross-section, and the side of the sealing block (31) that contacts the pen barrel (1) is made of rubber.

3. A marker pen according to claim 1, characterized in that: The pen barrel (1) is made of transparent plastic. A rubber pad (13) is fixedly installed on the outer wall of the pen barrel (1). A pen tip (12) is provided at the bottom of the pen barrel (1). A pen cap (11) is snapped onto the outer wall of the pen tip (12).

4. A marker pen according to claim 1, characterized in that: The outer wall of the rotating block (2) has several grooves (21), and the grooves (21) are semi-circular in design.

5. A marker pen according to claim 1, characterized in that: A ring (4) is fixedly installed on the inner wall of the pen barrel (1), a triangular block (41) is fixedly installed on the top of the ring (4), and an L-shaped groove (42) is opened on the outer wall of the ring (4).

6. A marker pen according to claim 5, characterized in that: A drive block (23) is fixedly installed at the bottom of the hollow column (22). The bottom of the drive block (23) is provided with multiple tooth grooves (231). The multiple tooth grooves (231) are equally distributed. The triangular block (41) meshes with the tooth grooves (231).

7. A marker pen according to claim 5, characterized in that: The triangular block (41) is designed as a right triangle, and the long right-angled side of the right triangle is designed in the horizontal direction, forming a one-way transmission structure of the ratchet gear.

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