A pen that can be filled with ink

Abstract

A pen for adding ink includes a pen barrel and a pen tip. The pen barrel contains a valve mechanism, which includes: a valve cylinder having an ink window extending axially; a valve cap at the head of the valve cylinder, the valve cap having a sealing cylinder extending into the valve cylinder; a valve core within the valve cylinder, the sealing cylinder having a raised first positioning portion on its outer surface and a first recess on its inner surface; a sealing bevel at the front end of the valve core, and a spring between the valve core and the rear end face of the valve cylinder, the sealing bevel of the valve core pressing against the rear end of the sealing cylinder under the action of the spring; and a head cover extending from the front end of the pen barrel into the pen barrel, the head cover having a raised second positioning portion on its outer surface and a second recess on its inner surface; the valve cylinder and valve cap are located within the head cover, the valve cylinder having a raised third positioning portion on its outer surface and a third recess on its inner surface; the pen tip is inserted from the head of the head cover, passes through the valve cap, and enters the valve core.

Description

Technical Field

[0001] This utility model relates to a pen that can be filled with ink. Background Technology

[0002] CN217730088U discloses a fountain pen, including a pen barrel, a pen tip sleeve detachably connected to the pen barrel, and a pen tip. The pen tip end of the pen barrel has a near-conical limiter, and the small end of the limiter has a compression hole for installing a compression valve. The compression valve includes a rod-shaped compression end and a part for installing the pen tip.

[0003] The pen tip receiving cavity is nearly inverted conical in shape; the large end of the limiter is fitted with a water storage regulator, which includes an adjustment end for abutting against the outer peripheral surface of the pen tip receiving cavity and a water storage end surrounded by several adjustment rods. The mounting edge of the large end of the limiter and the mounting edge of the adjustment end are both engaged between the end face of the pen barrel and the limiting step of the pen tip sleeve; the limiter is provided with at least one ink outlet hole. When the pen tip sleeve is squeezed, the pen tip receiving cavity moves away from the pen tip sleeve and disengages from the adjustment end. Ink can flow into the water storage area between two adjacent adjustment rods through the gap between the ink outlet hole, the adjustment end and the pen tip receiving cavity. When writing, the user naturally presses the pen tip cap. The pressure causes the pen tip receiving chamber of the squeeze valve to move away from the pen tip cap, disengaging the adjusting end of the ink reservoir regulator from the pen tip receiving chamber. Ink enters the limiter through the ink outlet, then flows through the gap between the adjusting end and the pen tip receiving chamber into the adjusting end of the ink reservoir regulator. Under the influence of surface tension, the ink is adsorbed between two adjacent adjusting rods, forming a water storage area. During writing, the ink is controlled within the water storage area between the adjusting rods, preventing excess ink from dripping directly and effectively controlling the ink output of the fountain pen, resulting in even ink flow. Furthermore, the adjusting rods utilize the surface tension of the ink to adsorb it, which, compared to sponges or other ink cores that absorb ink through their own pores, is less prone to aging, provides better ink output control, and has a longer service life.

[0004] Its drawbacks include: the structural design of the squeeze valve mechanism is not yet reasonable, making production and installation more troublesome, and the pen tip is difficult to reset after being pressed. Summary of the Invention

[0005] In order to overcome the above-mentioned shortcomings of existing ink-filling pens, this utility model provides an ink-filling pen that is more convenient to install and use.

[0006] The technical solution of this utility model to solve its technical problem is: a pen that can be filled with ink, including a pen barrel and a pen tip, wherein the pen barrel is provided with a valve mechanism, and the valve mechanism includes:

[0007] A cylindrical valve cylinder having an ink window that opens along its axial direction and extends rearward to the end of the valve cylinder;

[0008] A valve cap is provided at the head of the valve cylinder, the valve cap having a sealing cylinder that extends into the valve cylinder, and the end of the sealing cylinder is located in front of the ink window;

[0009] The valve core is disposed in the valve cylinder, and the outer side of the sealing cylinder is provided with a protruding first positioning part, and the inner side of the valve cylinder is provided with a recessed first recess, wherein the first positioning part is embedded in the first recess;

[0010] The valve core has a sealing bevel at its front end, and a spring is provided between the valve core and the rear end face of the valve cylinder. Under the action of the spring, the sealing bevel of the valve core rests against the rear end of the sealing cylinder.

[0011] It also includes a headgear that extends from the front end of the pen barrel into the pen barrel. The outer side of the headgear has a raised second positioning part, and the inner side of the pen barrel has a recessed second recess. The second positioning part is embedded in the second recess.

[0012] The valve cylinder and valve cap are located in the head cover. The outer side of the valve cylinder is provided with a protruding third positioning part, and the inner side of the head cover is provided with a concave third recess. The third positioning part is embedded in the third recess.

[0013] The pen tip is inserted from the head of the headgear, passes through the valve cap, and finally enters the valve core.

[0014] Furthermore, the outer side of the headgear is provided with a raised shoulder, and the headgear behind the raised shoulder is a positioning cylinder. The positioning cylinder extends into the pen barrel, the raised shoulder rests on the front end face of the pen barrel, and the second positioning part is provided on the outer side of the positioning cylinder.

[0015] Furthermore, the front end of the valve cap is provided with a convex ring, which rests on the front end face of the valve cylinder.

[0016] Furthermore, the headgear does not have a valve chamber at the rear, and the front end of the valve cap rests on the front end surface of the valve chamber.

[0017] Furthermore, the first positioning part, the second positioning part, and the third positioning part are all raised rings, and the first recess, the second recess, and the third recess are all recessed annular grooves.

[0018] Furthermore, the pen barrel is equipped with a shaking ball.

[0019] The beneficial effects of this utility model are as follows: 1. The design of the first positioning part and the first recess, the design of the second positioning part and the second recess, and the design of the third positioning part and the third recess make the pen very easy to assemble during production; 2. The design of the spring acting on the valve core allows the pen tip to easily return to its original position after being pressed. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a cross-sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the internal mechanism of the pen barrel.

[0023] Figure 4 This is a structural diagram of the valve cylinder section.

[0024] Figure 5 This is a schematic diagram of the headgear.

[0025] Figure 6 This is a schematic diagram of the valve cylinder.

[0026] Figure 7 This is a schematic diagram of the valve cap.

[0027] Figure 8 This is a structural view of the valve core. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figures 1-8 A pen for adding ink includes a pen barrel 1 and a pen tip 2. The pen barrel 1 is provided with a valve mechanism, which includes:

[0030] A cylindrical valve cylinder 3 has an ink window 4 opened along its axial direction, the ink window 4 extending rearward to the end of the valve cylinder 3;

[0031] A valve cap 10 is provided at the head of the valve cylinder 3. The valve cap 10 has a sealing cylinder 5. The sealing cylinder 5 extends into the valve cylinder 3, and the end of the sealing cylinder 5 is located in front of the ink window 4.

[0032] A valve core 6 is provided in the valve cylinder 3. The front end of the valve core 6 is provided with a sealing inclined surface 8. A spring 7 is provided between the valve core 6 and the rear end face of the valve cylinder 3. Under the action of the spring 7, the sealing inclined surface 8 of the valve core 6 presses against the rear end of the sealing cylinder 5.

[0033] The outer side of the sealing cylinder 5 is provided with a protruding first positioning part 5-1, and the inner side of the valve cylinder 3 is provided with a recessed first depression, and the first positioning part 5-1 is embedded in the first depression.

[0034] It also includes a head cover 9 that extends from the front end of the pen barrel 1 into the pen barrel 1. The outer side of the head cover 9 is provided with a raised second positioning part 9-1, and the inner side of the pen barrel 1 is provided with a concave second recess. The second positioning part 9-1 is embedded in the second recess.

[0035] The valve cylinder 3 and valve cap 10 are located in the head sleeve 9. The outer side of the valve cylinder 3 is provided with a protruding third positioning part 3-1, and the inner side of the head sleeve 9 is provided with a concave third recess. The third positioning part 3-1 is embedded in the third recess.

[0036] The pen tip 2 is inserted from the head of the head cap 9, passes through the valve cap 10, and finally enters the valve core 6.

[0037] During assembly, first insert the spring 7 into the valve cylinder 3, then fit the valve core 6 into the valve cylinder 3 so that the spring 7 rests on the valve core 6. Next, insert the valve cap 10 into the valve cylinder 3 (i.e., insert the sealing cylinder 5 into the valve cylinder 3), and achieve positioning through the engagement of the first positioning part 5-1 and the first recess. At this point, the sealing inclined surface 8 of the valve core 6 rests against the rear end of the sealing cylinder 5 to achieve a sealing effect. Then, insert the assembled components into the head sleeve 9, and achieve positioning of the valve cylinder 3 through the engagement of the third positioning part 3-1 and the third recess, and insert the pen tip 2. Finally, insert the head sleeve 9 into the pen barrel 1, and achieve positioning of the head sleeve 9 through the engagement of the second positioning part 9-1 and the second recess. The entire assembly process is very simple.

[0038] The pen barrel 1 is filled with ink. When in use, pressing the pen tip 2 pushes the valve core 6, causing the sealing bevel 8 of the valve core 6 to move away from the sealing cylinder 5. At this point, the seal is no longer formed, and the ink in the pen barrel 1 can reach the pen tip 2 through the ink window 4 of the valve cylinder, the gap between the sealing bevel 8 and the sealing cylinder 5, allowing the ink to penetrate the pen tip 2. After writing is finished, when the pen tip 2 is no longer pressed, the sealing bevel 8 of the valve core and the sealing cylinder 5 are sealed again under the action of the spring 7.

[0039] In one embodiment, the outer surface of the headgear 9 is provided with a protruding shoulder 9-2, and the headgear behind the shoulder 9-2 is a positioning cylinder that extends into the pen barrel 1. The shoulder 9-2 abuts against the front end face of the pen barrel 1, and the second positioning part 9-1 is provided on the outer surface of the positioning cylinder. After the shoulder 9-2 is provided, the shoulder 9-2 and the second positioning part 9-1 are adapted to each other. During the process of inserting the headgear 9 into the pen barrel 1, when the shoulder 9-2 abuts against the front end face of the pen barrel 1, the second positioning part 9-1 is just embedded in the second recess, making assembly simpler and the structure more stable.

[0040] In one embodiment, the valve cap 10 has a convex ring 11 at its front end, which abuts against the front end face of the valve cylinder 3. With the convex ring 11 in place, it fits into the first positioning part 5-1. During the insertion of the sealing cylinder 5 into the valve cylinder 3, when the convex ring 11 abuts against the front end face of the valve cylinder 3, the first positioning part 5-1 is precisely embedded in the first recess, making assembly simpler and the structure more stable.

[0041] In one embodiment, the headgear 9 does not have a valve cavity at the rear, and the front end of the valve cap 10 abuts against the front end surface of the valve cavity. At this time, the third positioning part 3-1 is just embedded in the third recess, making assembly simpler and the structure more stable.

[0042] In one embodiment, the first positioning part 5-1, the second positioning part 9-1, and the third positioning part 3-1 are all raised rings, and the first recess, the second recess, and the third recess are all recessed annular grooves.

[0043] In one embodiment, the pen barrel 1 is provided with a shaking ball 12. The ink added to the pen barrel 1 is ink in a broad sense, which can be a relatively viscous liquid such as pigment. Therefore, the pen is shaken before use to make the shaking ball 12 move in the pen barrel 1 to agitate and mix the ink. The pen of this invention can be a marker pen, contour pen, etc.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The embodiments of this utility model have been described above. However, this utility model is not limited to the above embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An ink-filling pen, comprising a pen barrel and a pen tip, wherein the pen barrel is provided with a valve mechanism, the valve mechanism comprising: A cylindrical valve cylinder having an ink window that opens along its axial direction and extends rearward to the end of the valve cylinder; A valve cap is provided at the head of the valve cylinder, the valve cap having a sealing cylinder that extends into the valve cylinder, and the end of the sealing cylinder is located in front of the ink window; The valve core disposed in the valve cylinder is characterized in that: a protruding first positioning part is provided on the outer side of the sealing cylinder, and a concave first recess is provided on the inner side of the valve cylinder, wherein the first positioning part is embedded in the first recess; The valve core has a sealing bevel at its front end, and a spring is provided between the valve core and the rear end face of the valve cylinder. Under the action of the spring, the sealing bevel of the valve core rests against the rear end of the sealing cylinder. It also includes a headgear that extends from the front end of the pen barrel into the pen barrel. The outer side of the headgear has a raised second positioning part, and the inner side of the pen barrel has a recessed second recess. The second positioning part is embedded in the second recess. The valve cylinder and valve cap are located in the head cover. The outer side of the valve cylinder is provided with a protruding third positioning part, and the inner side of the head cover is provided with a concave third recess. The third positioning part is embedded in the third recess. The pen tip is inserted from the head of the headgear, passes through the valve cap, and finally enters the valve core.

2. The inked pen of claim 1, wherein: The outer side of the headgear has a raised shoulder, and the headgear behind the raised shoulder is a positioning cylinder. The positioning cylinder extends into the pen barrel, and the raised shoulder rests on the front end face of the pen barrel. The second positioning part is located on the outer side of the positioning cylinder.

3. The inked pen of claim 1, wherein: The valve cap has a convex ring at its front end, which rests on the front end face of the valve cylinder.

4. The inked pen of claim 1, wherein: The headgear does not have a valve chamber at the rear, and the front end of the valve cap rests on the front end surface of the valve chamber.

5. A refill according to any one of claims 1 to 4, characterized in that: The first positioning part, the second positioning part, and the third positioning part are all raised rings, and the first recess, the second recess, and the third recess are all recessed annular grooves.

6. A refill according to any one of claims 1 to 4, wherein: The pen barrel is equipped with a shaking ball.

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