Mark pen with pen point convenient to replace
By setting up a liquid storage compartment, trough, infusion tube and limiting components in the marker pen, the pen tip is removable and replaced, solving the problem that existing marker pen tip has to be replaced because the pen tip is trapped in the pen, and improving resource utilization and convenience of use.
Patent Information
- Application Number
- CN202421220928.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The existing marker pen cannot be replaced, resulting in the pen tip being forced to replace the new marker pen because the pen tip is trapped in the pen, resulting in waste of resources and delayed work.
A marker pen is designed to facilitate replacement of the pen tip. By setting up a liquid storage compartment, a through-slot, an infusion tube and a limiting assembly inside the main body of the pen holder, the pen tip can be removable and replaced.
Through the design of limit plates and springs, fixing and replacing the pen tip becomes simple and quick, avoiding the pen tip offset, improving the pen liquid utilization rate and saving resources.
Smart Images
Figure CN222663021U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of marker pens, in particular to a marker pen with a convenient replacement of the pen head. Background Art
[0002] The pigment of marker pens is volatile and is used for one-time quick drawing. It is often used in designing objects, advertising slogans, posters or other art creations. It can draw thicker lines with little variation. Marker pens are widely used in daily life, so the demand for marker pens is relatively large.
[0003] However, the nib of a marker pen cannot be replaced so far. People often use too much force or accidentally drop the marker pen on the ground, causing the nib to sink into the pen and thus have to replace it with a new one. Many marker pens we replace have to be replaced just because of nib problems, which not only leads to a waste of resources, but also delays people's work. Therefore, we propose a marker pen with an easy-to-replace nib. Utility Model Content
[0004] 1. Technical problems to be solved by the utility model
[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a marker pen with an easy-to-replace pen tip, aiming to solve the problem in the prior art that the marker pen has to be replaced with a new one because the pen tip is stuck in the pen.
[0006] 2. Technical solution
[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0008] A marker pen that is easy to replace the pen tip, comprising a pen body, a liquid storage tank is arranged inside the pen body, a through groove is opened at the center of the bottom of the liquid storage tank, a liquid infusion tube is fixedly connected inside the through groove, a connector is fixedly connected to one end of the pen body, a mounting cavity is arranged inside the connector, a limit assembly is arranged inside the mounting cavity, the limit assembly is used to clamp and fix the pen tip, and a detachable connection sleeve is arranged at the bottom of the pen body;
[0009] A limiting tube is arranged inside the connecting sleeve, one end of the limiting tube is fixedly connected to the bottom of the connecting sleeve and passes through the connecting sleeve, and the other end of the limiting tube is clamped to an end of the connecting head away from the pen body.
[0010] Preferably, the bottom of the liquid storage bin is designed to be concave from all sides toward the center.
[0011] Preferably, the limiting assembly comprises two symmetrically arranged limiting plates, and a spring is fixedly connected between the two limiting plates at one side away from each other and the inner wall of the installation cavity.
[0012] Preferably, both ends of the limit plates are slidably connected to the inner wall of the connecting head, and clamping grooves for clamping the pen tip are provided on opposite sides of the two limit plates. One end of the infusion tube is connected to the mounting cavity, and an mounting hole is provided at the end of the connecting head away from the pen body, and the mounting hole is coaxially arranged with the infusion tube.
[0013] Preferably, movable accommodating grooves are symmetrically provided on both sides of the mounting hole and at the bottom of the connector, the movable accommodating grooves are communicated with the mounting cavity, and a fixed block passing through the movable accommodating groove is fixedly connected to the bottom of the limiting plate, and one end of the fixed block passes through the movable accommodating groove and extends outward.
[0014] Preferably, a ring-shaped limiting groove is provided outside the mounting hole and on the connecting head, and the top of the limiting tube can be snapped into the limiting groove.
[0015] Preferably, the limiting tube is divided into three sections from top to bottom, namely, a flaring section, a connecting section and a shrinking section. The flaring section is wider than the connecting section, the connecting section width gradually decreases from top to bottom, and the shrinking section matches the gap of the pen tip.
[0016] Preferably, an external thread groove is provided on the outer wall of the connecting head, an internal thread groove is provided on the inner wall at the top end of the connecting sleeve, and the connecting sleeve and the connecting head are threadedly connected via the internal thread groove and the external thread groove.
[0017] Preferably, one end of the infusion tube close to the liquid storage tank is fixedly connected to a limiting sleeve, and a liquid passing hole is provided at the center of the limiting sleeve.
[0018] 3. Beneficial effects
[0019] Compared with the prior art, the beneficial effects of the utility model are:
[0020] (1) The utility model provides two limit plates with clamping grooves for clamping the pen tip on opposite sides thereof, and springs are fixedly connected between the two limit plates and the inner wall of the mounting cavity on the sides away from each other. The pen tip can be fixed by the force provided by the springs to prevent it from shifting. A fixed block passing through the movable accommodating groove is fixedly connected to the bottom of the limit plate, and the limit plate is moved by moving the fixed block to facilitate the removal of the pen tip. The utility model has a simple structure and high practicality.
[0021] (2) The utility model provides a liquid storage tank at the bottom of the pen body, and the liquid storage tank is designed to be concave in the center on all sides, which can improve the utilization rate of the pen liquid in the pen body and save resources.
[0022] (3) The utility model sets the limiting tube into three sections: an expanding section, a connecting section and a shrinking section. The expanding section is wider than the connecting section, and the width of the connecting section gradually decreases from top to bottom. The shrinking section cooperates with the gap between the pen tip and the pen tip, making it easy for the pen tip to enter the limiting tube and to limit the pen tip, thereby preventing the pen tip from shifting during writing. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the marker pen;
[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of a marker pen;
[0025] Figure 3 for Figure 2 A is an enlarged structural diagram;
[0026] Figure 4 for Figure 2 The enlarged structural diagram at B in FIG.
[0027] Figure 5 for Figure 1 The enlarged structural diagram at C in the figure.
[0028] In the figure: 1. Pen body; 2. Connecting sleeve; 3. Liquid storage tank; 4. Infusion tube; 5. Connecting head; 6. Limiting assembly; 601. Spring; 602. Limiting plate; 7. Limiting tube; 8. Fixed block; 9. Movable accommodating groove; 10. Mounting hole; 11. Limiting groove; 12. Limiting sleeve. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0030] Example:
[0031] See also Figure 1-Figure 5 The present embodiment provides a marker pen that is easy to replace the pen tip, including a pen body 1, a liquid storage tank 3 is arranged inside the pen body 1, and is used to store the pen liquid. A through groove is opened at the center of the bottom of the liquid storage tank 3 to facilitate the downward flow of the pen liquid. A liquid infusion tube 4 is fixedly connected inside the through groove to facilitate the pen liquid to enter the pen tip. A connector 5 is fixedly connected to one end of the pen body 1, and an installation cavity is arranged inside the connector 5. A limit assembly 6 is arranged inside the installation cavity, and the limit assembly 6 is used to clamp and fix the pen tip. A detachable connection sleeve 2 is arranged at the bottom of the pen body 1;
[0032] A limiting tube 7 is arranged inside the connecting sleeve 2, one end of the limiting tube 7 is fixedly connected to the bottom of the connecting sleeve 2 and passes through the connecting sleeve 2, and the other end of the limiting tube 7 is clamped to the end of the connecting head 5 away from the pen body 1. The use of the limiting tube 7 can prevent the pen liquid from contaminating the connecting sleeve 2.
[0033] In this embodiment, if Figure 2 As shown, the bottom of the liquid storage tank 3 is configured to be concave from the periphery to the center, which can improve the utilization rate of the pen liquid in the pen body 1 and save resources.
[0034] In this embodiment, if Figure 2 As shown, the limiting assembly 6 includes two symmetrically arranged limiting plates 602, and a spring 601 is fixedly connected between the side of the two limiting plates 602 that is away from the inner wall of the installation cavity. When the pen tip is inserted, the two limiting plates 602 can limit the pen tip, and the spring 601 can provide thrust to the limiting plates 602, so that the pen tip can be firmly clamped by the limiting plates 602 to prevent the pen tip from deflecting.
[0035] In this embodiment, if Figure 1 , Figure 2 and Figure 5 As shown, both ends of the limit plate 602 are slidably connected to the inner wall of the connecting head 5, and the opposite sides of the two limit plates 602 are provided with clamping grooves for clamping the pen tip. When the pen tip is inserted, the clamping grooves on the two limit plates 602 clamp the pen tip. One end of the infusion tube 4 is connected to the mounting cavity, and the end of the connecting head 5 away from the pen body 1 is provided with a mounting hole 10. The mounting hole 10 is coaxially arranged with the infusion tube 4, so that the pen tip can enter the infusion tube 4 through the mounting hole 10.
[0036] In this embodiment, if Figure 1 , Figure 2 and Figure 4 As shown, movable receiving grooves 9 are symmetrically provided on both sides of the mounting hole 10 and at the bottom of the connecting head 5. The movable receiving groove 9 is communicated with the mounting cavity. A fixed block 8 passing through the movable receiving groove 9 is fixedly connected to the bottom of the limiting plate 602. One end of the fixed block 8 passes through the movable receiving groove 9 and extends outward. When the pen tip needs to be replaced, the movable fixed block 8 drives the limiting plate 602 to move, and then the pen tip to be replaced is taken out and replaced with a new one. The structure is simple and easy to use.
[0037] In this embodiment, if Figure 1 , Figure 2 and Figure 5 As shown, a ring-shaped limiting groove 11 is provided on the outside of the mounting hole 10 and on the connecting head 5 , and the top of the limiting tube 7 can be snapped into the limiting groove 11 . The limiting groove 11 can limit the limiting tube 7 to prevent the pen liquid from leaking out and contaminating the connecting sleeve 2 .
[0038] In this embodiment, if Figure 2As shown, the limiting tube 7 is divided into three sections from top to bottom: an expanding section, a connecting section and a shrinking section. The width of the expanding section is greater than that of the connecting section. The width of the connecting section gradually decreases from top to bottom. The shrinking section matches the gap between the pen tip and the nib. When the nib enters the limiting tube 7, the setting of the expanding section allows the nib to enter easily. When the nib passes through the connecting section and enters the shrinking section, the nib can be limited to prevent the nib from shifting during writing.
[0039] In this embodiment, if Figure 1 and Figure 2 As shown, an external thread groove is provided on the outer wall of the connecting head 5, and an internal thread groove is provided on the inner wall at the top of the connecting sleeve 2. The connecting sleeve 2 and the connecting head 5 are threadedly connected through the internal thread groove and the external thread groove. Anti-slip grooves are provided on the outer side of the connecting sleeve 2 to facilitate the threaded connection between the connecting sleeve 2 and the connecting head 5. When the connecting head 5 and the connecting sleeve 2 are threadedly connected, the connecting sleeve 2 can be limited to prevent it from shifting, and the structure is simple.
[0040] In this embodiment, if Figure 2 and Figure 3 As shown, one end of the infusion tube 4 close to the liquid storage tank 3 is fixedly connected to a limiting sleeve 12. When the pen tip enters the infusion tube 4, the limiting sleeve 12 can limit the position of the pen tip. A liquid hole is provided at the center of the limiting sleeve 12 to facilitate the pen liquid in the liquid storage tank 3 to flow into the pen tip.
[0041] Working principle: When writing, if there is a problem with the pen tip and the pen tip needs to be replaced, first rotate the connecting sleeve 2 until it is separated from the connecting head 5, then remove the connecting sleeve 2, then invert the pen body 1, move the fixing block 8 on one side of the connecting head 5, thereby driving the limit plate 602 to move, increase the distance between the two limit plates 602, and make the pen tip separate from the clamping of the limit plate 602, then remove the pen tip, replace it with a new one, insert the new pen tip through the mounting hole 10 until the pen tip is inserted into the infusion tube 4 and presses against the limit sleeve 12 and cannot be inserted further, release the fixing block 8 to drive the limit plate 60 2 is moved, thereby reducing the distance between the two limiting plates 602 to fix the pen tip located between the two limiting plates 602, the pen tip protruding from the mounting hole 10 is inserted into the limiting tube 7 in the connecting sleeve 2, and the connecting sleeve 2 is rotated to fix the connecting sleeve 2 on the pen body 1, and the two limiting plates 602 are fixedly connected to the side away from each other with a spring 601, the pen tip can be fixed by the force provided by the spring 601 to prevent it from deflecting, and the limiting plate 602 can be driven to move by moving the fixing block 8, so that the pen tip can be easily taken out, and the structure is simple and practical.
[0042] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.
Claims
1. A marker pen with a convenient nib replacement, comprising a pen body (1), characterized in that: A liquid storage tank (3) is arranged inside the pen body (1), a through groove is opened at the center of the bottom of the liquid storage tank (3), a liquid infusion tube (4) is fixedly connected inside the through groove, a connector (5) is fixedly connected to one end of the pen body (1), a mounting cavity is arranged inside the connector (5), a limit assembly (6) is arranged inside the mounting cavity, and the limit assembly (6) is used to clamp and fix the pen tip, and a detachable connection sleeve (2) is arranged at the bottom of the pen body (1); A limiting tube (7) is arranged inside the connecting sleeve (2), one end of the limiting tube (7) is fixedly connected to the bottom of the connecting sleeve (2) and passes through the connecting sleeve (2), and the other end of the limiting tube (7) is clamped to an end of the connecting head (5) away from the pen body (1); The limiting assembly (6) comprises two symmetrically arranged limiting plates (602), and a spring (601) is fixedly connected between the two sides of the limiting plates (602) that are away from each other and the inner wall of the installation cavity; The two ends of the limit plate (602) are slidably connected to the inner wall of the connecting head (5), and the two opposite sides of the two limit plates (602) are each provided with a clamping groove for clamping the pen tip. One end of the infusion tube (4) is connected to the installation cavity, and the end of the connecting head (5) away from the pen body (1) is provided with a mounting hole (10), and the mounting hole (10) is coaxially arranged with the infusion tube (4).
2. A marker pen with an easily replaceable nib according to claim 1, characterized in that: The bottom of the liquid storage bin (3) is designed to be concave from all sides toward the center.
3. The marker pen with easily replaceable nib according to claim 1, characterized in that: Movable accommodating grooves (9) are symmetrically provided on both sides of the mounting hole (10) and at the bottom of the connector (5); the movable accommodating grooves (9) are communicated with the mounting cavity; a fixed block (8) passing through the movable accommodating groove (9) is fixedly connected to the bottom of the limiting plate (602); one end of the fixed block (8) passes through the movable accommodating groove (9) and extends outward.
4. The marker pen with easily replaceable nib according to claim 1, characterized in that: An annular limiting groove (11) is provided outside the mounting hole (10) and on the connector (5), and the top of the limiting tube (7) can be snap-fitted into the limiting groove (11).
5. The marker pen with easily replaceable nib according to claim 1, characterized in that: The limiting tube (7) is divided into three sections from top to bottom, namely, a flaring section, a connecting section and a shrinking section. The flaring section is wider than the connecting section, the connecting section is gradually narrowed from top to bottom, and the shrinking section is in clearance with the pen tip.
6. The marker pen with easily replaceable nib according to claim 1, characterized in that: An external thread groove is provided on the outer wall of the connecting head (5), and an internal thread groove is provided on the inner wall of the top end of the connecting sleeve (2). The connecting sleeve (2) and the connecting head (5) are threadedly connected via the internal thread groove and the external thread groove.
7. The marker pen with easily replaceable nib according to claim 1, characterized in that: One end of the infusion tube (4) close to the liquid storage bin (3) is fixedly connected to a limiting sleeve (12), and a liquid passing hole is provided at the center of the limiting sleeve (12).