One-finger side ink type finger pen
The design of the one-finger edge ink pen enables single-finger guidance and multi-finger coordinated pen movement, solving the problem of existing stationery pens having difficulty in accurately controlling the movement trajectory of the pen tip. This improves writing accuracy and comfort, reduces production costs, and decreases the risk of frostbite.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-10
AI Technical Summary
Existing stationery pens are difficult to control precisely, making writing inconvenient and tiring, and especially in winter, they can easily cause frostbite to the fingers.
It adopts a one-finger edge ink finger pen, which guides multiple fingers to work together to write. The pen tip axis coincides with the center line of the finger hole, and the direction of the ink pressure coincides with the ink application point. The ink cavity is integrated into the pen body, reducing the difficulty of production.
It improves writing accuracy and comfort, reduces production costs, decreases the risk of frostbite, and enhances font aesthetics and writing quality.
Smart Images
Figure CN223982321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of writing instrument technology, specifically to a finger pen with one-finger edge ink. Background Technology
[0002] Most stationery pens on the market today are written by pinching the pen barrel. This method of pen control makes it difficult to precisely control the movement of the pen tip. When writing by pinching the pen barrel, the aiming point is within a few fingers, a relatively vague area that is difficult to control precisely. To write well, people often need to spend a lot of time and energy learning and practicing handwriting. At the same time, writing requires a high degree of concentration, making it difficult to think about other things, which is very tiring. In addition, because the aiming point is vague, gloves must be removed when writing in winter, otherwise it is difficult to accurately control the movement of the pen tip, making it difficult to write neatly. Frequently removing gloves to write in winter can easily lead to frostbite on the fingers, causing chilblains, which in turn affects daily life and study. Utility Model Content
[0003] The purpose of this invention is to address the aforementioned problems by providing a one-finger edge-inking finger pen. This writing method, which uses a single finger to guide multiple fingers in coordination, offers greater precision in controlling the pen's direction compared to the multi-finger interaction of existing straight-tube pens. This helps to produce neater characters, reduces the likelihood of distraction during writing, and conserves mental energy during extended writing sessions. Furthermore, unlike straight-tube pens where the pressure applied to the ink tends to deviate, the finger pen's pressure is directly aligned with the paper. This alignment of the pressure direction and the ink application point allows for precise control of the pressure applied during writing, facilitating accurate control of stroke thickness and variation, and ultimately improving overall writing quality.
[0004] This utility model is achieved through the following technical solution:
[0005] This utility model provides a fingertip pen with one-finger ink, including a pen body and a pen tip connector; one end of the pen body is provided with a finger hole for inserting a finger, and the other end is provided with a mounting hole at a position corresponding to the finger hole; one end of the pen tip connector is adapted to be disposed in the mounting hole, and the end of the pen tip connector and the hole wall of the mounting hole form an ink cavity; the pen tip connector is provided with an insertion hole for inserting a pen tip, the axis of the pen tip coincides with the center line of the finger hole, one end of the pen tip is connected to the ink cavity, and the other end extends out of the outer end face of the pen tip connector.
[0006] As a preferred embodiment of this utility model, the pen body is provided with a ventilation channel, one end of which is connected to the ink cavity, and the other end is located on the edge of the finger hole entrance.
[0007] As a preferred embodiment of this utility model, the ventilation channel includes two straight channels that communicate with each other, one end of which extends to communicate with the ink cavity, and the other end of which extends to the edge of the finger hole inlet.
[0008] As a preferred embodiment of this utility model, a limiting protrusion and a thrust surface are provided between the pen tip connector and the mounting hole. The limiting protrusion is used to realize the engagement of the pen tip connector with the mounting hole, and the thrust surface is perpendicular to the outer surface of the pen tip connector and the pen body.
[0009] As a preferred embodiment of this utility model, one end of the pen tip connector located in the mounting hole is recessed to form a groove, and the bottom of the groove has a communicating hole that communicates with the pen tip.
[0010] As a preferred embodiment of this utility model, the pen body is provided with a disassembly groove on the edge of the mounting hole entrance, for removing the pen tip connector from the pen body.
[0011] As a preferred embodiment of this utility model, the pen body is provided with a vent hole, which is connected to the finger hole.
[0012] As a preferred embodiment of this utility model, a suitable flexible finger sleeve is provided inside the finger hole, and an extension opening is provided on the side wall of the flexible finger sleeve.
[0013] As a preferred embodiment of this utility model, it also includes a pen cap for protecting the pen tip, wherein the pen cap and the pen body are detachably plugged in.
[0014] As a preferred embodiment of this utility model, the pen body is provided with an annular protrusion on the outside, and the pen cap is provided with a locking protrusion that can cooperate with it.
[0015] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0016] The finger pen of this invention features a finger hole at one end of the pen body for easy writing on a finger, and a pen tip connector in a mounting hole at the other end of the pen body. The end of the pen tip connector and the wall of the mounting hole enclose an ink cavity. A pen tip is inserted into a hole in the pen tip connector, with the axis of the pen tip coinciding with the center line of the finger hole. One end of the pen tip is connected to the ink cavity, and the other end extends beyond the outer end face of the pen tip connector. This finger pen uses a single-finger guided multi-finger collaborative writing method, which, compared to the multi-finger interactive writing of existing straight-tube pens, is more conducive to precise control of the writing motion. The pen's direction helps to make the writing more neat; compared to the dynamic movement between the direction of ink application and the ink point in straight-tube pens, when writing with this finger pen, the direction of ink application can completely coincide with the ink point. This will facilitate more precise control over the thickness and flow of strokes, thus helping to make the writing more beautiful; since the ink chamber is integrated into the pen body, the ink can be placed directly in the ink chamber without the need for a separate refill tube, and its ink capacity can be many times that of existing ballpoint pen refills; the manufacturing process of the entire pen is not difficult, which will help reduce the cost of mass production. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:
[0018] Figure 1 This is a three-dimensional view of the one-finger ink-edge type finger pen of this utility model;
[0019] Figure 2 This is a cross-sectional view of a fingertip pen with an edge ink in this utility model;
[0020] Figure 3 This utility model Figure 2 A partial schematic diagram of the pen tip connector;
[0021] Figure 4 A perspective view of the concealed cap of the finger-tip ink pen of this utility model;
[0022] Figure 5 This is a perspective view of the pen cap in this utility model;
[0023] Figure 6 This is a three-dimensional view of the flexible finger sleeve in this utility model.
[0024] The attached diagram shows the markings and corresponding component names:
[0025] 1-Pen body, 11-Finger hole, 12-Mounting hole, 13-Ventilation channel, 14-Removal groove, 15-Ventilation hole, 16-Annular protrusion, 2-Pen tip connector, 21-Groove, 22-Connecting hole, 3-Pen tip, 4-Flexible finger sleeve, 41-Telescopic opening, 5-Pen cap, 51-Positioning protrusion, 52-Sealing pad, 53-Support strip, 54-Pen clip, 55-Hanging hole, 56-Safety hole, A-Limiting protrusion, B-Thrust surface. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.
[0028] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.
[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0030] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.
[0031] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.
[0032] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces), unless otherwise explicitly specified.
[0033] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0034] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0035] Please refer to Figures 1 to 6 This application provides a one-finger edge ink pen, including a pen body 1 and a pen tip connector 2; one end of the pen body 1 is provided with a finger hole 11 for inserting a finger, and the other end is provided with a mounting hole 12 at a position corresponding to the finger hole 11; one end of the pen tip connector 2 is adapted to be disposed in the mounting hole 12, and the end of the pen tip connector 2 and the hole wall of the mounting hole 12 form an ink cavity; the pen tip connector 2 is provided with an insertion hole for inserting a pen tip 3, the axis of the pen tip 3 coincides with the center line of the finger hole 11, one end of the pen tip 3 communicates with the ink cavity, and the other end extends out of the outer end face of the pen tip connector 2.
[0036] In this embodiment, the pen body 1 is cylindrical, and its outer diameter gradually tapers towards the pen tip 3. After the pen tip connector 2 is installed on the pen body 1, the entire finger pen resembles a bullet shape. The finger hole 11 is shaped to fit the finger and has a certain taper, with a larger inlet end and a slightly smaller bottom end. The outer wall thickness of the pen body 1 at the finger hole 11 is only about 2mm-5mm. Compared to finger-wrapping pen, the appearance is similar, but the wall thickness is much thinner, which will help improve the comfort of holding the pen.
[0037] In this embodiment, the finger pen uses a single-finger writing method, primarily involving "dragging" the pen to guide the stroke. Compared to the multi-finger interactive "pushing" motion of existing stationery pens, this method allows for more precise control of the pen's direction, resulting in neater handwriting. Compared to the multi-finger collaborative pen movement of existing straight-tube pens, controlling a single finger to guide multi-finger collaborative writing is simpler. When writing, one only needs to concentrate on the single finger within the finger hole, reducing the probability of distraction and saving mental energy, making it more suitable for extended writing sessions. Furthermore, unlike the tendency of straight-tube pens to shift between the pressure applied to the inkwell and the ink point, the finger pen's pressure is directly aligned with the paper surface, allowing for precise control of the pressure applied during writing. This facilitates precise control of stroke thickness variations, ultimately improving overall writing quality.
[0038] Since the ink chamber is integrated into the pen body 1, the ink can be placed directly in the ink chamber without the need for a separate refill tube. This will help reduce the production cost and weight of the entire pen. At the same time, the ink capacity of this finger pen can be several times that of existing ballpoint pen refills, making the finger pen last longer.
[0039] Meanwhile, in this embodiment, when the finger pen is in motion, the pen tip and the fingertip are on the same crosshair line, so the writing trajectory of the finger pen matches the movement trajectory of the fingertip. This will help improve the perception of the pen crosshair when writing. With the enhanced perception of the pen crosshair, people no longer need to take off their gloves when writing in winter, which can also effectively prevent frostbite caused by taking off gloves to write.
[0040] According to some embodiments of this application, the pen body 1 is provided with a vent 13, one end of which is connected to the ink cavity, and the other end is located on the edge of the finger hole 11 entrance. By providing a vent 13 connected to the ink cavity inside the pen body 1, the atmospheric pressure inside the ink cavity is kept stable. Since one end of the vent 13 is located on the edge of the finger hole 11 entrance, the length of the vent 13 can be extended, thereby maximizing the prevention of overflow due to thermal expansion and contraction or ink self-flow.
[0041] According to Poiseuille's law, when a fluid flows in a circular pipe, the flow rate is directly proportional to the fourth power of the pipe radius and inversely proportional to the pipe length. It is also related to the viscosity of the fluid and the pressure difference between the two ends of the pipe. Therefore, the smaller and longer the orifice of the vent, the better, provided it allows for airflow. Water-based or gel ink refills typically require sealing at the end, and the sealant must transition smoothly into the ink. This is clearly difficult to achieve given the limited internal dimensions of this fingertip pen. Therefore, this fingertip pen is only suitable for high-viscosity oil-based inks and not so suitable for low-viscosity water-based or gel inks.
[0042] According to some embodiments of this application, the vent 13 includes two interconnected straight channels, one end of which extends to communicate with the ink cavity, and the other end of which extends to the edge of the finger hole 11 entrance. By designing the vent 13 as two straight channels, the curved path is transformed into a straight path, which significantly reduces the production difficulty. It eliminates the need for more technically challenging and costly blown film technology or secondary molding technology, thus reducing the overall pen manufacturing complexity and production cost.
[0043] According to some embodiments of this application, a limiting protrusion A and a thrust surface B are provided between the pen tip connector 2 and the mounting hole 12. The limiting protrusion A is used to achieve the snap-fit connection between the pen tip connector 2 and the mounting hole 12. By providing the limiting protrusion A and the thrust surface B, a sealed snap-fit connection between the pen tip connector 2 and the mounting hole 12 can be achieved, while controlling the insertion depth of the pen tip connector 2.
[0044] Specifically, after the pen tip connector 2 is inserted into the mounting hole 12, the limiting protrusion A on the outer wall of the pen tip connector 2 cooperates with the limiting protrusion A on the inner wall of the mounting hole 12, thereby securing the pen tip connector 2 within the mounting hole 12. Furthermore, the use of multiple limiting protrusions A creates a labyrinth effect, improving the sealing performance of the pen tip connector 2. Simultaneously, during the insertion of the pen tip connector 2, the thrust surface B on the pen tip connector 2 abuts against the thrust surface B at the opening of the mounting hole 12, thereby controlling the insertion depth of the pen tip connector 2.
[0045] According to some embodiments of this application, the thrust surface B is perpendicular to the outer surfaces of the pen tip connector 2 and the pen body 1. By employing the above technical solution, the curling of the pen tip connector 2 at its edge can be effectively prevented, and a funnel-shaped converging angle is provided when the pen tip connector 2 is inserted.
[0046] According to some embodiments of this application, one end of the pen tip connector 2 located within the mounting hole 12 is recessed to form a groove 21, and the bottom of the groove 21 has a connecting hole 22 communicating with the pen tip 3. By making the end of the pen tip connector 2 facing the bottom of the mounting hole 12 recessed to form a groove 21, not only can the ink cavity be increased, further improving the ink carrying capacity, but also, after the pen has been used for a period of time, the ink will be consumed to a certain extent. This groove 21 is conducive to the collection of remaining ink, making it easier for ink to enter the pen tip 3 through the connecting hole 22.
[0047] Meanwhile, the opening and bottom of the groove 21 and the opening of the connecting hole 22 are all provided with smooth rounded corners. Using smooth rounded corners in these positions can make the ink flow inside the ink cavity as smooth as possible, thereby reducing ink retention and waste at the corners.
[0048] According to some embodiments of this application, the pen body 1 is provided with a disassembly groove 14 on the edge of the entrance of the mounting hole 12 for disassembling the pen tip connector 2 from the pen body 1. After the pen tip connector 2 is inserted into the mounting hole 12, the disassembly groove 14 contacts the thrust surface B, thereby forming a force application point that facilitates the disassembly of the pen tip connector 2. Preferably, two disassembly grooves 14 are symmetrically arranged around the center line of the mounting hole 12, thereby facilitating the symmetrical application of disassembly force to the pen tip connector 2.
[0049] According to some embodiments of this application, the pen body 1 is provided with ventilation holes 15, which are interconnected with the finger holes 11. The ventilation holes 15 can be oblong, round, or square, etc., penetrating the inner and outer walls of the pen body 1. Preferably, two ventilation holes 15 can be arranged with the center line of the finger holes 11 as the axis of symmetry. By providing ventilation holes 15 on the pen body 1 to connect the inside of the finger holes 11 with the outside air, it is possible to effectively prevent stuffiness inside the finger holes 11 during writing, thereby improving writing comfort.
[0050] According to some embodiments of this application, a suitable flexible finger sleeve 4 is provided inside the finger hole 11. The shape of the flexible finger sleeve 4 is adapted to the finger hole 11. In use, the flexible finger sleeve 4 can be put on the finger and inserted into the finger hole 11 along with the finger. This can protect the finger and make the finger more comfortable in the finger hole 11. It can also increase the fixing effect of the finger hole 11 on the finger, making the fit between the finger and the finger hole 11 more stable and preventing the pen from falling off during writing.
[0051] Since the pen body 1 is generally made of hard material, long-term use may cause finger abrasions or soreness from squeezing. Moreover, the finger hole 11 on the pen body 1 has a fixed size and cannot well adapt to the finger size of different people. By using a flexible finger sleeve 4 as a buffer between the finger and the finger hole 11 on the pen body 1, the above problems can be solved well.
[0052] According to some embodiments of this application, the flexible finger sleeve 4 has a telescopic opening 41 on its side wall. Two telescopic openings 41 can be symmetrically arranged along the center line of the flexible finger sleeve 4. By providing the telescopic opening 41, air can be easily expelled or drawn in when the flexible finger sleeve 4 is inserted into or removed from the finger hole 11, thus facilitating the placement or removal of the flexible finger sleeve 4. At the same time, the telescopic opening 41 on the side wall of the flexible finger sleeve 4 also functions similarly to the vent 15 on the pen body 1. When it is not possible to provide a vent 15 on the pen body 1, the aforementioned telescopic opening 41 can effectively prevent air congestion inside the finger hole 11 during writing, improving writing comfort.
[0053] When the pen body 1 is provided with both the ventilation hole 15 and the flexible finger sleeve 4 is provided with the telescopic opening 41, preferably, when installing the flexible finger sleeve 4, the telescopic opening 41 of the flexible finger sleeve 4 is positioned opposite to the ventilation hole 15 of the pen body 1 so that the two are connected, which can improve the ventilation effect.
[0054] According to some embodiments of this application, the finger pen further includes a pen cap 5 for protecting the pen tip 3, and the pen cap 5 is detachably connected to the pen body 1. When the finger pen is not in use, the pen cap 5 can be placed on the pen body 1 to protect the pen tip 3; when writing is required, the pen cap 5 can be removed.
[0055] According to some embodiments of this application, an annular protrusion 16 is provided on the outside of the pen body 1, and a locking protrusion 51 that can cooperate with it is provided inside the pen cap 5. By providing the annular protrusion 16 and the locking protrusion 51, when the pen cap 5 is closed on the pen body 1, the locking protrusion 51 can be adapted to the annular protrusion 16 to form a locking and limiting structure, so that the pen cap 5 will not fall off at will. Under the premise of ensuring that sufficient length is reserved on the outside of the pen body 1 for the grip position of inserting and removing the pen cap 5, there can be one or more annular protrusions 16.
[0056] Preferably, two annular protrusions 16 are arranged at intervals along the axis of the pen body 1, and multiple locking protrusions 51 are arranged at intervals along the circumference. When the pen cap 5 is placed on one end of the pen tip 3, the locking protrusion 51 can engage with one of the annular protrusions 16 near the pen tip 3, thus providing positioning for the normal insertion and removal of the pen cap 5. When the pen cap 5 is placed on one end of the finger hole 11, the locking protrusion 51 can engage with one of the annular protrusions 16 near the finger hole 11, thus providing writing convenience for people accustomed to the existing pen grip method. Provided that sufficient length is reserved outside the pen body 1 for the grip position of inserting and removing the pen cap 5, two annular protrusions 16 are more aesthetically pleasing when the remaining length outside the pen body 1 is sufficient; when the remaining length outside the pen body 1 is very short, only one annular protrusion 16 can be retained.
[0057] According to some embodiments of this application, a soft rubber sealing pad 52 is provided on the pen cap 5 at a position opposite to the pen tip 3. Since a poor-quality pen tip 3 is prone to ink leakage, the sealing pad 52 provided on the pen cap 5 can effectively reduce the probability of large-scale ink leakage.
[0058] According to some embodiments of this application, a plurality of support strips 53 are provided circumferentially along the inner edge of the pen cap 5, and the upper surface of the support strips 53 is rounded towards the outer wall of the pen body 1. This arrangement can improve the strength of the pen cap 5, limit the insertion depth of the pen body 1, limit the position of the sealing gasket 52, and at the same time minimize the mutual friction between the pen cap 5 and the pen body 1, thereby preventing scratches on the outer surface of the pen body 1.
[0059] According to some embodiments of this application, a pen clip 54 is also provided on the outer wall of the pen cap 5, so as to conveniently clip the pen to a book or clothing. At the same time, a hanging hole 55 can be provided on the pen clip 54, through which a hanging rope can be threaded.
[0060] According to some embodiments of this application, the end of the pen cap 5 is provided with a plurality of safety holes 56. These safety holes 56 can release the air pressure inside the pen cap 5 in time when the pen cap is inserted or removed, preventing ink from being sucked out of the pen tip 3. At the same time, they can also prevent suffocation when the pen cap 5 is accidentally swallowed.
[0061] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A one-fingered edge-ink stylus, characterized by, The pen body is provided with a finger hole at one end for inserting a finger, and an installation hole at the opposite end corresponding to the finger hole; one end of the pen head connector is adapted to be arranged in the installation hole, and the end of the pen head connector and the hole wall of the installation hole form an ink chamber; the pen head connector is provided with an insertion hole for inserting a pen head, the axis of the pen head coincides with the center line of the finger hole, one end of the pen head is in communication with the ink chamber, and the other end extends out of the outer end surface of the pen head connector.
2. The one-side-ink stylus of claim 1, wherein The pen body is provided with a ventilation channel, one end of which is in communication with the ink chamber, and the other end is located on the edge of the entrance of the finger hole.
3. The one-side-ink stylus of claim 2, wherein The ventilation channel includes two straight channels that are in communication with each other, one end of one of the straight channels extends to be in communication with the ink chamber, and one end of the other straight channel extends to the edge of the entrance of the finger hole.
4. The one-side-ink stylus of claim 1, wherein A limiting protrusion and a thrust surface are arranged between the pen head connector and the installation hole, the limiting protrusion is used to realize the clamping of the pen head connector and the installation hole, and the thrust surface is perpendicular to the outer surface of the pen head connector and the pen body.
5. The one-edge-ink finger pen according to claim 1, wherein The end of the pen head connector that is arranged in the installation hole is recessed to form a groove, and the bottom of the groove has a communication hole that is in communication with the pen head.
6. The one-side-ink stylus of claim 1, wherein The pen body is provided with a disassembly groove on the edge of the entrance of the installation hole, which is used to disassemble the pen head connector from the pen body.
7. The one-side-ink stylus of claim 1, wherein The pen body is provided with a ventilation hole that is in communication with the finger hole.
8. The one-side-ink stylus of claim 1, wherein A flexible finger sleeve is arranged in the finger hole, and an expansion opening is arranged on the side wall of the flexible finger sleeve.
9. The one-side-ink stylus of claim 1, wherein A pen cover is further provided for protecting the pen head, and the pen cover and the pen body are detachably connected.
10. The one-side-ink stylus of claim 9, wherein, The pen body is provided with an annular protrusion, and the pen cover is provided with a clamping protrusion block that can cooperate with the annular protrusion.