Ink guiding device of ink mark pen

Abstract

The utility model discloses a water diversion device of an ink mark pen, which comprises a water diversion device and an air inlet hole, one end of the water diversion device is connected with an ink outlet head, the other end of the water diversion device is connected with an ink inlet head, the air inlet hole is arranged at the joint of the water diversion device and the ink outlet head, an air exchange hole is arranged in the water diversion device, the surface of the water diversion device is spirally connected with flow deflectors, and an air exchange groove is arranged between the flow deflectors. Through collaborative design of the air inlet hole and the ventilation groove, air pressure inside and outside the water guide device can be balanced in real time, when ink flows out of the ink outlet hole to cause negative pressure in the pen, external air slowly flows through a spiral path of the ventilation groove and enters through the ventilation hole to assist in adjusting the air pressure in the water guide device, and the problems of ink interruption and unsmooth ink outlet of the water guide device caused by the negative pressure are avoided; and the air inlet hole is formed in the joint of the ink guiding device and the ink outlet head and can balance the air pressure at the joint of the ink guiding device and the ink outlet head, and the problems of ink shortage and unsmooth ink outlet caused by negative pressure formed by outflow of the ink in the pen are solved.

Description

Technical Field

[0001] This utility model belongs to the field of marker technology, specifically relating to an ink injector for an ink marker. Background Technology

[0002] Marker pens, also known as markers, are colored pens used for writing or drawing. They contain ink and usually have a cap. The ink used in marker pens is volatile and is used for quick, one-time drawing. They are often used for designing objects, advertising slogans, etc. The ink pump in a marker pen plays a crucial role in connecting the ink reservoir to the nib. Through capillary action within the ink pump, it guides the ink to flow steadily, ensuring even ink flow and smooth writing.

[0003] In existing markers, as ink flows continuously from the tip of the pen through the infuser, the space inside the pen is gradually filled with air, creating a negative pressure environment. This makes it difficult for outside air to enter the infuser, resulting in an imbalance between the air pressure inside and outside the infuser. This is similar to using a sealed container to hold liquid; when some of the liquid is extracted, the pressure inside the container decreases, making it difficult for the remaining liquid to flow out smoothly. This negative pressure state hinders the smooth flow of ink within the infuser, often causing users to experience ink interruptions or poor ink flow. When writing or drawing continuously, this severely affects the continuity and fluency of the artwork. Utility Model Content

[0004] The purpose of this invention is to provide an ink injector for an ink marker to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an ink injector for an ink marker, comprising:

[0006] A water inlet device, one end of which is connected to an ink outlet head, and the other end of which is connected to an ink inlet head;

[0007] An air inlet is provided at the connection between the water inlet and the ink outlet head to balance the air pressure inside the water inlet. The water inlet is provided with an air exchange hole. The surface of the water inlet is spirally connected with guide vanes, and an air exchange groove is provided between the guide vanes to guide the airflow into the interior of the water inlet.

[0008] Preferably, a buffer pad is connected to the ink inlet head.

[0009] Preferably, the ink outlet head is provided with an ink outlet hole.

[0010] Preferably, the water inlet device has a flow channel, one end of which is connected to the ink inlet head and the other end is connected to the ink outlet hole in the ink outlet head.

[0011] Preferably, a retaining ring is fixedly fitted at the connection between the water inlet and the ink outlet head.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) Through the coordinated design of the air inlet and the ventilation groove, the air pressure inside and outside the water pump can be balanced in real time. When the ink flows out from the ink outlet, causing negative pressure inside the pen, the outside air flows slowly through the spiral path of the ventilation groove and enters through the ventilation hole to help regulate the air pressure inside the water pump, avoid the problem of ink interruption and poor ink flow caused by negative pressure, and ensure a stable ink supply during continuous writing.

[0014] (2) The air inlet is located at the connection between the water inlet and the ink outlet. The air inlet can balance the air pressure at the connection between the water inlet and the ink outlet, avoid the problem of ink interruption and poor ink flow caused by negative pressure caused by the ink flowing out of the pen, and ensure that the ink can flow out smoothly from the ink outlet, thus ensuring the continuity and smoothness of writing or drawing.

[0015] (3) The flow channel connects the ink inlet head and the ink outlet hole. Combined with the capillary structure in the water inlet device, it guides the ink to flow at a constant speed along a fixed path. The spiral ventilation groove separates the air and ink flow, avoids the airflow directly impacting the ink, reduces flow turbulence, and ensures that the ink lines are of uniform thickness and the color intensity is consistent. Attached Figure Description

[0016] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0017] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0018] Figure 3 This is a front view of the present invention.

[0019] In the diagram: 1. Water inlet; 2. Ink outlet; 3. Ink inlet; 4. Air inlet; 5. Ventilation port; 6. Guide vane; 7. Ventilation groove; 8. Buffer pad; 9. Ink outlet; 10. Flow channel; 11. Fixing ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides, for example Figure 1-3 The ink injector of an ink marker shown includes:

[0022] Water inlet device 1, one end of which is connected to ink outlet head 2, and the other end is connected to ink inlet head 3;

[0023] An air inlet 4 is located at the connection between the water inlet 1 and the ink outlet head 2. It is used to balance the air pressure inside the water inlet 1. The water inlet 1 is provided with a ventilation hole 5. The surface of the water inlet 1 is spirally connected with guide vanes 6. There are ventilation grooves 7 between the guide vanes 6 to guide the airflow into the interior of the water inlet 1. When the air pressure inside the water inlet 1 increases, these gases can be discharged in time through the ventilation hole 5 and the air inlet 4, which can maintain the air pressure balance inside the water inlet 1 and prevent the ink from being squeezed out due to changes in internal gas pressure.

[0024] The ink inlet head 3 is connected to a buffer pad 8. The buffer pad 8 absorbs external impact through elastic deformation, preventing gaps from forming at the connection between the water inlet device 1 and the ink inlet head 3 due to vibration, and increasing the sealing of the connection.

[0025] The ink outlet head 2 is provided with an ink outlet hole 9, and the water inlet device 1 is provided with a flow channel 10. One end of the flow channel 10 is connected to the ink inlet head 3, and the other end is connected to the ink outlet hole 9 in the ink outlet head 2.

[0026] A fixing ring 11 is fixedly fitted at the connection between the water inlet 1 and the ink outlet 2. The connection between the water inlet 1 and the ink outlet 2 is the weak point of the flow channel 10. With long-term use, it may deform due to stress, such as being flattened or twisted. The fixing ring 11 maintains the circular cross-sectional shape of the flow channel 10 through external support, avoiding ink interruption or poor ink output caused by deformation of the flow channel 10.

[0027] In this ink marker, ink enters the ink inlet 1 through the ink inlet head 3 and flows along the flow channel 10 inside the ink inlet 1. Finally, it flows out from the ink outlet 9 in the ink outlet head 2 to the pen tip. At this time, the space inside the ink inlet 1 increases and the air pressure gradually decreases. At this time, outside air enters through the air inlet 4. Because the orifice is small and close to the ink outlet end, it can quickly respond to pressure changes and avoid negative pressure from hindering the ink flow. After the air enters, it diffuses through the gaps or capillary structure inside the ink inlet 1 and forms a dynamic balance with the ink flow, ensuring that the ink is continuously delivered to the pen tip under capillary action.

[0028] The air exchange grooves 7 are spirally distributed on the surface of the ink pump 1, guiding air to slowly flow into the air exchange holes 5 along the spiral path. The spiral shape increases the distance and time of air flow, making the airflow evenly dispersed and avoiding direct impact on the ink. After the air reaches the air exchange holes 5 through the air exchange grooves 7, it enters the interior of the ink pump 1 to further regulate the local air pressure. Especially when the pen body is tilted or the ink consumption is accelerated, it can accelerate the balance of air pressure and prevent the ink output from suddenly increasing or decreasing.

[0029] Because the air inlet 4 and the ventilation hole 5 have small diameters, the surface tension of the liquid creates an "air lock" effect. When the ink comes into contact with the openings of the air inlet 4 and the ventilation hole 5, the surface tension prevents the ink from easily entering, thus avoiding ink leakage.

[0030] Furthermore, a hydrophobic material, such as PTFE (polytetrafluoroethylene), can be placed on the parts where the ink contacts the air inlet 4 and the vent 5. Due to the microporous structure of PTFE, the ink can be prevented from diffusing outwards into the air inlet 4 and the vent 5, thus preventing ink leakage. Since the diameter of gas molecules is much smaller than that of ink molecules, the microporous structure of PTFE allows gas molecules to diffuse through these tiny pores into the air inlet 4 and the vent 5, thereby allowing air to enter the water inlet 1 through the air inlet 4 and the vent 5, regulating the air pressure inside the water inlet 1 to maintain balance.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ink injector for an ink marker, characterized in that, include: A water inlet device (1), one end of which is connected to an ink outlet head (2) and the other end is connected to an ink inlet head (3); An air inlet (4) is provided at the connection between the water inlet (1) and the ink outlet (2) to balance the air pressure inside the water inlet (1). An air exchange hole (5) is provided inside the water inlet (1). A guide vane (6) is spirally connected to the surface of the water inlet (1). An air exchange groove (7) is provided between the guide vanes (6) to guide the airflow into the interior of the water inlet (1).

2. The ink injector for an ink marker according to claim 1, characterized in that: A buffer pad (8) is connected to the ink inlet head (3).

3. The ink injector for an ink marker according to claim 1, characterized in that: The ink outlet head (2) is provided with an ink outlet hole (9).

4. The ink injector for an ink marker according to claim 3, characterized in that: The water inlet device (1) is provided with a flow channel (10), one end of which is connected to the ink inlet head (3) and the other end is connected to the ink outlet hole (9) in the ink outlet head (2).

5. The ink injector for an ink marker according to claim 1, characterized in that: A retaining ring (11) is fixedly fitted at the connection between the water inlet (1) and the ink outlet (2).

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