A valve pen based on wobble micro-ink and its assembly method

Abstract

The application discloses a valve pen based on swing micro-motion ink output and an assembling method thereof. The valve pen comprises a pen barrel for containing ink and a pen tip shell (6) connected to the pen barrel, characterized in that: one end of the pen tip shell (6) is provided with a connecting part (61) for connecting the pen barrel, and the other end is connected with a valve cover (1); the valve cover (1) is provided with an opening (11); the inside of the pen tip shell (6) is sequentially provided with a valve seat (4) and a valve core (2) from the connecting part (61) to the valve cover (1) direction, and the valve core (2) abuts against the opening (11); one end of the valve core (2) is fixedly connected with a pen tip (3), and the front end of the pen tip (3) extends from the opening (11) to the outside of the valve cover (1); the spring (5) is arranged between the valve seat (4) and the valve core (2); when the pen tip (3) is forced, the valve core (2) swings and deviates from the opening (11) to generate a gap for ink output and air return, so that continuous ink output of the pen tip during writing is realized.

Description

Technical Field

[0001] This invention relates to a valve pen and its assembly method, particularly a valve pen based on micro-oscillation ink dispensing and its assembly method. Background Technology

[0002] A valve pen is a specially designed writing instrument. Its main feature is that it controls the flow of ink through a valve mechanism, thereby preventing the ink from evaporating when not in use and ensuring the lifespan and utilization rate of the pen.

[0003] The core component of a valve pen is the valve structure, which is currently mainly divided into front-press and rear-press types. Rear-press pens require ink to be pressed from the rear of the pen, which doesn't conform to our writing habits. They also require a push rod to open the valve core for ink dispensing, and relying solely on air return from the pen tip is prone to clogging, unstable air pressure, and large fluctuations in ink output. Furthermore, rear-press pens have more parts, a more complex structure, lower yield rates due to progressive tolerances, and higher costs, presenting numerous problems.

[0004] The front-press type uses a method where the pen tip moves axially under pressure to open the valve core and dispense ink. The valve core can only move in one vertical direction, so the pen tip must have a high degree of hardness to open the valve. In addition, the pen tip must have a certain cross-sectional area to ensure strength; otherwise, it will be damaged when pressed.

[0005] Therefore, there is an urgent need in the market for a valve pen that is easy to operate, has a simple structure, provides stable ink output, and has low requirements for the pen tip. Summary of the Invention

[0006] The purpose of this invention is to provide a valve pen based on a swing-type micro-motion ink dispensing mechanism and its assembly method. This invention not only offers simple writing operation and a streamlined structure, but also provides stable ink dispensing and is suitable for nibs made of various materials.

[0007] The technical solution of this invention is as follows: A valve pen based on a swing-type micro-motion ink dispensing mechanism includes a pen barrel for containing ink and a pen tip shell connected to the pen barrel. The pen tip shell is characterized by: a connecting part for connecting to the pen barrel at one end, and a valve cover connected to the other end; the valve cover has an opening; inside the pen tip shell, a valve seat and a valve core are sequentially arranged from the connecting part towards the valve cover, with the valve core abutting against the opening; one end of the valve core is fixedly connected to the pen tip, and the tip of the pen tip extends from the opening to the outside of the valve cover; a spring is provided between the valve seat and the valve core, and under the action of the spring, the valve core seals the opening when not writing; when the pen tip is subjected to force, it causes the valve core to swing and deviate from the opening, creating a gap for ink dispensing and air return, thereby achieving continuous ink dispensing from the pen tip during writing.

[0008] In the aforementioned valve pen based on micro-spinning ink dispensing, the inner side of the valve cover opening is provided with at least one ring of protrusions, and the valve core is provided with a groove that mates with the protrusions.

[0009] In the aforementioned valve pen based on micro-oscillating ink dispensing, the protrusion and groove are not completely fitted together, and include at least two line contact parts, with an ink storage gap formed between the line contact parts.

[0010] In the aforementioned valve pen based on a wobbling micro-motion ink dispensing mechanism, the shapes of the protrusions and grooves are preferably of two types:

[0011] 1. One of the cross sections is a circular arc, and the other cross section is a V-shape.

[0012] 2. The cross-sections of the protrusion and the groove are two circular arcs with different curvatures.

[0013] In the aforementioned valve pen based on oscillating micro-motion ink dispensing, both the valve seat and the valve core are provided with slots for fixing the spring.

[0014] In the aforementioned valve pen based on a wobbling micro-motion ink dispensing mechanism, the opening size is larger than the pen tip size, allowing the pen tip to deflect radially. Therefore, at the natural angle between the pen barrel and the paper during writing, the component force perpendicular to the pen tip's central axis pushes the pen tip and valve core to produce radial deflection, achieving continuous ink dispensing.

[0015] The aforementioned assembly method for a valve pen based on oscillating micro-motion ink dispensing includes the following steps:

[0016] ① Install the pen tip onto the valve core;

[0017] ② Install valve core and valve seat at both ends of the spring to form assembly A;

[0018] ③Insert assembly A into the pen tip shell as a whole, and secure the end with the valve cap to form assembly B;

[0019] ④ Add the stirring block and ink to the pen barrel, insert part B into the pen barrel and tighten it, and press the pen tip once to release air.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. This invention employs a valve core that opens and closes by utilizing the lateral force exerted on the pen tip during natural writing. This allows ink to easily flow out of the valve core and complete the air return process, thanks to the force exerted on the pen tip during natural writing. This ink dispensing method overcomes the requirements of traditional front-press valve pens regarding the material and strength of the pen tip, thus allowing its application to soft brushes, calligraphy brushes, and other pen tip materials, broadening its application range.

[0022] 2. The ink ejection method of this invention utilizes the force applied to the pen tip during natural writing, thus requiring minimal control over writing posture. It enables a continuous ink ejection process where ink is ejected immediately upon starting the pen and stopped immediately upon stopping the pen, ensuring stable and reliable ink ejection.

[0023] 3. The overall structure of the present invention is simple, easy to assemble, and easy to implement. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention (excluding the pen barrel);

[0025] Figure 2 This is a partially enlarged view of the valve core contact area of ​​the present invention.

[0026] The markings in the attached diagram are: 1-valve cover, 11-opening, 12-protrusion, 2-valve core, 21-groove, 3-pen tip, 4-valve seat, 5-spring, 6-pen tip housing, 61-connector. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Any modifications or substitutions made to the methods, steps, or conditions of the present invention without departing from the spirit and essence of the invention are within the scope of the invention.

[0028] Example 1: A valve pen based on a wobbling micro-motion ink dispensing mechanism, comprising a pen barrel for containing ink and a pen tip housing 6 connected to the pen barrel, such as... Figure 1 As shown: One end of the pen tip shell 6 is provided with a connecting part 61 for connecting to the pen barrel, and the other end is connected to a valve cover 1; the valve cover 1 is provided with an opening 11; inside the pen tip shell 6, a valve seat 4 and a valve core 2 are provided sequentially from the connecting part 61 toward the valve cover 1, and the valve core 2 abuts against the opening 11; one end of the valve core 2 is fixedly connected to the pen tip 3, and the front end of the pen tip 3 extends from the opening 11 to the outside of the valve cover 1; a spring 5 is provided between the valve seat 4 and the valve core 2; when the pen tip 3 is subjected to force, it drives the valve core 2 to swing and deviate from the opening 11 to create a gap for ink output and air return, thereby realizing continuous ink output from the pen tip during writing.

[0029] The valve core 2 has a hole for accommodating the pen tip 3, and the hole has comb teeth for clamping the pen tip. Both the connecting part of the pen tip housing 6 and the valve seat 4 have channels for ink to pass through. The connection between the valve cover 1 and the pen tip housing 6, as well as the connection between the pen tip housing 6 and the pen barrel, can use a snap-fit ​​interference fit or a threaded connection with higher sealing performance. The valve seat 4 can also be integrated with the pen tip housing 6.

[0030] The valve cover 1 has at least one ring of protrusions 12 on the inner side of the opening 11, and the valve core 2 has a groove 21 that mates with the protrusions 12. When the protrusions 12 and the groove 21 are in surface contact, the ink is less likely to flow out, and the ink flow requires relatively high force from the pen tip. However, if there is only one line contact area, the ink will flow out too easily.

[0031] Therefore, as a preferred embodiment, the protrusion 12 and the groove 21 are not completely fitted together, and at least two line contact areas are included, forming an ink storage gap between the line contact areas. The ease of ink dispensing is between that of surface contact and one line contact. Of the protrusion 12 and the groove 21, one has a circular arc cross-section, and the other has a V-shaped cross-section, such as... Figure 2 As shown, when the valve core 2 is subjected to force and swings, the line contact area between the protrusion 12 and the groove 21 will partially open, thus forming a crescent-shaped slit channel that is small at both ends and large in the middle. This ensures smooth ink flow while controlling excessive ink leakage. During natural writing, the angle of the pen tip's lateral force is constantly changing, so the position of the slit opening also changes continuously. As long as there is writing action, ink can be continuously output.

[0032] The cross-sections of the protrusion 12 and the groove 21 can also be in another way, namely, two arcs with different curvatures. Due to the different curvatures, at least two line contact parts will be generated, and an ink storage gap will be formed between the line contact parts.

[0033] Both the valve seat 4 and the valve core 2 are provided with slots for fixing the spring 5, facilitating assembly. The opening 11 is larger than the pen tip 3, allowing the pen tip 3 to deviate radially. The pen tip swing amplitude is limited to about 3° (offset from the pen tip centerline), and adjusting the pen tip shape can be done with almost no impact on writing. The connection between the pen tip housing 1 and the pen barrel can be a conventional threaded or snap-fit ​​structure, and an ink channel is provided at the connection point to facilitate the entry of ink from the pen barrel into the pen tip housing 6.

[0034] The assembly method of the valve pen based on the swing-type micro-motion ink dispensing includes the following steps:

[0035] ① Install the pen tip 3 onto the valve core 2;

[0036] ② Install valve core 2 and valve seat 4 at both ends of spring 5 to form assembly A;

[0037] ③Insert the entire assembly A into the pen tip shell 6 and secure the end with the valve cap 1 to form assembly B;

[0038] ④ Add the stirring block and ink to the pen barrel, insert the assembly B into the pen barrel and tighten it, and press the pen tip 3 once to release air.

[0039] When using, shake the ink well, remove the pen cap, and press / draw lines directly on the paper in a normal writing posture. You can write smoothly within 3 to 5 seconds.

Claims

1. A valve pen based on a wobbling micro-motion ink dispensing mechanism, comprising a pen barrel for containing ink and a pen tip housing (6) connected to the pen barrel, characterized in that: The pen tip shell (6) has a connecting part (61) for connecting the pen barrel at one end and a valve cover (1) at the other end; the valve cover (1) has an opening (11); inside the pen tip shell (6), a valve seat (4) and a valve core (2) are arranged sequentially from the connecting part (61) toward the valve cover (1), and the valve core (2) abuts against the opening (11); one end of the valve core (2) is fixedly connected to the pen tip (3), and the front end of the pen tip (3) extends from the opening (11) to the outside of the valve cover (1); a spring (5) is provided between the valve seat (4) and the valve core (2); when the pen tip (3) is subjected to force, it drives the valve core (2) to swing and deviate from the opening (11) to create a gap for ink output and air return, thereby realizing continuous ink output from the pen tip when writing.

2. The valve pen based on oscillating micro-motion ink dispensing according to claim 1, characterized in that: The valve cover (1) has at least one ring of protrusions (12) inside the opening (11), and the valve core (2) has a groove (21) that matches the protrusions (12).

3. A valve pen based on oscillating micro-motion ink dispensing according to claim 2, characterized in that: The protrusion (12) and the groove (21) are not completely fitted together, and include at least two line contact parts, forming an ink storage gap between the line contact parts.

4. A valve pen based on oscillating micro-motion ink dispensing according to claim 3, characterized in that: Of the protrusion (12) and groove (21), one has a circular arc cross section and the other has a V-shaped cross section.

5. A valve pen based on oscillating micro-motion ink dispensing according to claim 3, characterized in that: The cross-sections of the protrusion (12) and the groove (21) are two circular arcs with different curvatures.

6. The valve pen based on oscillating micro-motion ink dispensing according to claim 1, characterized in that: Both the valve seat (4) and the valve core (2) are provided with slots for fixing the spring (5).

7. The valve pen based on oscillating micro-motion ink dispensing according to claim 1, characterized in that: The size of the opening (11) is larger than the size of the pen tip (3), allowing the pen tip (3) to be offset in the radial direction.

8. The assembly method of the valve pen based on the oscillating micro-motion ink dispensing according to any one of claims 1-7, characterized in that, Includes the following steps: ① Install the pen tip (3) onto the valve core (2); ② Install valve core (2) and valve seat (4) at both ends of spring (5) to form assembly A; ③Insert the entire assembly A into the pen tip shell (6) and secure the end with the valve cap (1) to form assembly B; ④ Add the stirring block and ink to the pen barrel, insert the accessory B into the pen barrel and tighten it, and press the pen tip (3) once to release the air.

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