Ink refill kit for recycled ink cartridges

Abstract

An ink refill kit for recycled ink cartridges, characterized in that the kit comprises a drilling assembly (1), a positioning assembly (2), and an ink filling assembly (3), wherein the drilling assembly (1) comprises a drill (5) driven by a motor (4), the positioning assembly (2) comprises a base (6) for securing the ink cartridge, wherein a drilling positioning cover (7) and an ink filling positioning cover (8) can be alternatively placed on the base (6), wherein the drilling positioning cover (7) is provided with a positioning hole (9) for precisely guiding the drill (5), and the ink filling positioning cover (8) is provided with an ink refill nozzle (10) at a position corresponding to the hole, and the ink filling assembly (3) comprises a box body (11) with ink stored therein, wherein the box body (11) is provided with an air inlet (12) at an upper end,and the box body (11) is provided on the underside with an ink outlet (13) which cooperates with the ink refill nozzle (10).,

Description

Technical area

[0001] The present utility model relates to a device for refilling ink in ink cartridges, in particular an ink refill set for recycled ink cartridges. State of the art

[0002] When using ink cartridges, it is common practice to refill the cartridges after the ink has been used up to ensure reuse. Currently, there are two main methods for refilling ink cartridges. One is to send the cartridges to the manufacturer for professional refilling. However, this poses the problem of high time and cost. For users who frequently need refills, the cumulative costs are significant and may even negate the economic benefits of refilling. The other is for users to add ink by drilling holes in the cartridges themselves. For ordinary users, the self-drilling and refilling method has significant disadvantages due to the high operating threshold. Users are often unfamiliar with the drilling process.In the practical drilling process of refilling, operational errors are easy to occur due to a lack of professional knowledge and experience. Once an operational error occurs, it not only hinders the refilling process but may also damage the precise internal structure of the ink cartridges, leading to the scrapping of the ink cartridges, defeating the purpose of refilling, and causing economic losses for the user. Furthermore, the drilling process may compromise the tightness of the ink cartridges and cause problems such as ink leakage, affecting the normal operation of the printer and the usage environment. Contents of this utility model

[0003] The object of the present utility model is to provide an ink refill kit for recycled ink cartridges to overcome the deficiencies of the prior art. The object of the present utility model is achieved by the following technical solutions: An ink refill kit for recycled ink cartridges, the kit comprising a drilling assembly, a positioning assembly, and an ink filling assembly, the drilling assembly comprising a motor-driven drill, the positioning assembly comprising a base for fixing the ink cartridge, a drilling positioning cover and an ink filling positioning cover being alternatively mountable on the base, the drilling positioning cover being provided with a positioning hole for precisely guiding the drill, and the ink filling positioning cover being provided with an ink refilling nozzle at a position corresponding to the hole, and the ink filling assembly comprising a box body with ink stored therein, the box body being provided with an air inlet at an upper end, and the box body being provided with an ink outlet at the bottom, which cooperates with the ink refilling nozzle.

[0004] The base is provided inside with a cavity for fixing the ink cartridge, wherein first positioning sections are arranged symmetrically on the left and right sides of the cavity, wherein the upper end surfaces of the first positioning sections abut the upper flanged edge of the ink cartridge, and a second positioning section and a third positioning section are arranged on the front and rear sides of the cavity.

[0005] The drilling positioning cover and the ink filling positioning cover are provided with a first anti-interference plate and a second anti-interference plate, respectively, corresponding to the second positioning section. The drilling positioning cover and the ink filling positioning cover are provided with a first positioning edge and a second positioning edge, respectively, on the bottom edge. When the drilling positioning cover or the ink filling positioning cover is attached, the outer sides of the first positioning edge and the first anti-interference plate, or the second positioning edge and the second anti-interference plate, abut the inner wall of the cavity.

[0006] The drilling positioning cover is provided with a column, with the positioning hole located in the center of the column and a reinforcing sleeve installed in the column.

[0007] The ink refill nozzle has a central pinhole, with an ink filling needle built into the pinhole.

[0008] The box body consists of a lower box and an upper lid. The air inlet is located on the upper lid and sealed by a disposable sealing film, and the ink outlet is located on the underside of the lower box. The ink outlet is provided with a first seal inside, and the first seal is provided with a first ink outlet channel inside. The first ink outlet channel is provided with a first self-sealing film inside, which is pierced by the ink filling needle during use.

[0009] The underlying box is provided with a downward sloping surface at the bottom, which runs from the inner wall of the underlying box towards the ink outlet, and the lowest point of the underlying box is at the ink outlet.

[0010] The box body is provided internally with a main ink chamber and a metering chamber connected to each other at their upper ends, and the box body is provided internally above the main ink chamber and the metering chamber with an air valve chamber connected to the two through the air inlet, wherein the air inlet is arranged on one side of the air valve chamber, and an air valve for blocking the air inlet is slidably installed in the air valve chamber, and the ink outlet is provided internally with a second seal, wherein the second seal is provided internally with a second ink outlet channel, wherein the second ink outlet channel is provided internally with a second self-closing film which is pierced by the ink filling needle during use; a removable cap is attached to the ink outlet.

[0011] The air valve chamber is provided at the bottom with a low platform, a high platform and an inclined surface for connecting the low platform and the high platform, with the air inlet arranged on the high platform.

[0012] The present utility model has the following advantageous effects: the present utility model comprises a drilling assembly, a positioning assembly, and an ink filling assembly, wherein the drilling assembly comprises a motor-driven drill, the positioning assembly comprises a base for fixing the ink cartridge, a drilling positioning cover and an ink filling positioning cover being alternatively mounted on the base, the drilling positioning cover being provided with a positioning hole for precisely guiding the drill, and the ink filling positioning cover being provided with an ink refilling nozzle at a position corresponding to the hole, and the ink filling assembly comprising a box body with ink stored therein, the box body being provided with an air inlet at an upper end, and the box body being provided with an ink outlet at the bottom.which interacts with the ink refill nozzle. During drilling, the ink cartridge is secured, then the drilling positioning cap is placed on top, and the drilling can be performed without special expertise. This prevents damage to the ink cartridge due to improper handling and solves the problem of time-consuming and costly ink refilling. During ink refilling, the ink refill positioning cap is placed on top, and the ink refill needle is inserted into the ink cartridge hole. A ventilation channel is created between the ink refill needle and the hole. The ink flows from the ink refill needle into the ink cartridge by gravity, while air escapes through the ventilation channel. This design uses the principle of pressure equalization. This automatically regulates the air pressure inside and outside the ink cartridge.This prevents ink overflow at the printhead or interrupted ink supply. This solution breaks with the conventional disposable design, enables reuse of the ink cartridge, reduces environmental impact, decreases replacement frequency, and provides an effective solution to the high cost of consumables. Brief description of the drawings

[0013] The present utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. Fig. 1 shows a schematic representation of the structure of the present utility model during drilling; Fig. 2 shows a schematic diagram of the structure of the present utility model during ink filling; Fig. 3 shows an exploded view of a positioning arrangement (monochrome); Fig. 4 shows an exploded view of a drill positioning cover (monochrome); Fig. 5 shows a structural representation of a base. Fig. 6 shows a structural diagram of a drilling positioning cover (colored); Fig. 7 is a structural diagram of an ink filling positioning cap (color); Fig. 8 shows a schematic diagram of the structure of an ink cartridge; Fig. 9 shows an exploded view of a first embodiment; Fig. 10 shows a sectional view of the first embodiment; Fig. 11 shows an enlarged view of part A in Fig. 10; Fig. 12 shows a structural diagram of a second embodiment; Fig. 13 shows an exploded view of the second embodiment; Fig. 14 shows a first structural diagram of a main body; Fig. 15 shows a second structural diagram of the main body; Fig. 16 shows a first schematic representation of the second embodiment in use; Fig. Figure 17 shows a second schematic representation of the second embodiment in use; Fig. 18 shows an enlarged view of an air valve chamber; Fig. 19 shows a structural diagram of an air valve; Fig. 20 shows a sectional view of a second seal. Detailed embodiments

[0014] In Fig. 1 to 20, an ink refill kit for recycled ink cartridges is shown, the kit comprising a drilling assembly 1, a positioning assembly 2, and an ink filling assembly 3. The drilling assembly 1 comprises a drill 5 driven by a motor 4. The positioning assembly 2 comprises a base 6 for securing the ink cartridge B. A drilling positioning cover 7 and an ink filling positioning cover 8 can be alternatively placed on the base 6. The drilling positioning cover 7 is provided with a positioning hole 9 for precisely guiding the drill 5, and the ink filling positioning cover 8 is provided with an ink refill nozzle 10 at a position corresponding to the hole. The ink filling assembly 3 comprises a box body 11 with ink stored therein. The box body 11 is provided with an air inlet 12 at an upper end, and the box body 11 is provided with an ink outlet 13 at the bottom.which interacts with the ink refill nozzle 10.

[0015] During drilling, the ink cartridge is fixed in the base 6, then the drilling positioning cap 7 is placed on top, and drilling can be performed without special expertise. This prevents damage to the ink cartridge due to improper handling and saves the time and cost of returning the cartridge to the manufacturer, thus solving the problem of time-consuming and costly ink refilling. During ink filling, the drilling positioning cap 7 is replaced with the ink filling positioning cap 8. The ink filling needle 25 is inserted into the bore of the ink cartridge. A ventilation channel is created between the ink filling needle 25 and the bore (this is made possible by making the bore diameter slightly larger than the outer diameter of the ink filling needle 25). The ink flows from the ink filling needle 25 into the ink cartridge by gravity, while air escapes through the ventilation channel.This design uses the pressure equalization principle, which automatically regulates the air pressure inside and outside the ink cartridge—rather than the principle where external pressure forces ink filling and thereby increases the cartridge's internal pressure. This prevents pressure fluctuations within the ink cartridge, preventing ink overflow at the print head or interrupted ink supply. This solution breaks with the conventional disposable design, enables reuse of the ink cartridge, reduces environmental impact, decreases replacement frequency, and provides an effective solution to the high cost of consumables.

[0016] The ink cartridges are usually single-color (e.g., black) or multi-color (e.g., 3 colors: cyan, magenta, and yellow). When refilling black, the drilling positioning cover 7 has 1 positioning hole 9 corresponding to the black ink chamber, and the ink filling positioning cover 8 correspondingly has 1 ink refilling port 10 with an ink filling needle 25 built into the ink refilling port 10. When refilling color inks, the drilling positioning cover 7 has 3 positioning holes 9 corresponding to the color ink chambers, and the ink filling positioning cover 8 correspondingly has 3 ink refilling ports 10 with 3 ink filling needles 25 built into the ink refilling port 10, with the 3 color inks being refilled separately.

[0017] Furthermore, the ink filling positioning cover 8 is provided with refill marks D corresponding to the ink colors to reduce misfills. Similarly, the drilling positioning cover 7 is also provided with drilling marks C to prevent incorrect drilling, which could lead to damage to the ink cartridge.

[0018] The base 6 is provided inside with a cavity 14 for fixing the ink cartridge, wherein first positioning sections 15 are arranged symmetrically on the left and right sides of the cavity 14, wherein the upper end surfaces of the first positioning sections 15 rest on the upper flanged edge of the ink cartridge (see Fig. 8, where E denotes the crimped edge on the ink cartridge; the height of the first positioning portions 15 exceeds the maximum height of the corresponding ink cartridge model, so that after inserting the ink cartridge of that model, the bottom of the ink cartridge is kept in a floating state, thereby preventing the nozzles on the bottom of the ink cartridge from coming into contact with the bottom of the base 6 and thereby making precise positioning impossible), and a second positioning portion 17 and a third positioning portion 18 are arranged on the front and rear sides of the cavity 14, respectively.

[0019] Furthermore, the first positioning section 15 is formed as two parallel webs, with an integral connecting wall 16 arranged between the webs on the side closest to the ink cartridge. The first positioning section 15 and the connecting wall 16 together form a U-shaped structure. The upper end of the connecting wall 16 is flush with the top surface of the first positioning section 15, thereby increasing the support surface on the top surface of the first positioning section 15, i.e., the surface that supports the flanged edge of the ink cartridge. Furthermore, the connecting walls 16 also serve to position the ink cartridge laterally in the left-right direction.

[0020] The connecting walls 16, the second positioning section 17 and the third positioning section 18 must be adjusted depending on the brand and model of the ink cartridge.

[0021] For ink cartridges without a flanged edge, the bottom of cavity 14 may be provided with ridges that contact the bottom of the ink cartridge. The height of these ridges must be greater than the height of the ink cartridge's nozzles to ensure the nozzles are kept suspended. This prevents vibrations during the drilling process from being transmitted to and affecting the nozzles.

[0022] The drilling positioning cover 7 and the ink filling positioning cover 8 are provided with a first anti-interference plate 19 and a second anti-interference plate 20, respectively, corresponding to the second positioning portion 17. If the drilling positioning cover 7 or the ink filling positioning cover 8 is installed in the wrong direction, the first anti-interference plate 19 and the second anti-interference plate 20 abut against the third positioning portion 18, thereby preventing the installation of the drilling positioning cover 7 and the ink filling positioning cover 8.

[0023] The drilling positioning cover 7 and the ink filling positioning cover 8 are provided on their lower edges with a first positioning edge 21 and a second positioning edge 22, respectively. When the drilling positioning cover 7 or the ink filling positioning cover 8 is installed, the outer sides of the first positioning edge 21 and the first anti-interference plate 19, or the second positioning edge 22 and the second anti-interference plate 20, rest against the inner wall of the cavity 14. This serves as a guide during assembly and increases the positioning precision of the drilling positioning cover 7 and the ink filling positioning cover 8, which in turn improves the accuracy of the drilling and ink filling positions.

[0024] Furthermore, the heights of the second positioning edge 22 and the second anti-mistake plate 20 are greater than the length of the built-in ink filling needle 25, whereby they enclose the ink filling needle 25 and form a safety barrier to prevent puncture injuries.

[0025] The drill positioning cover 7 is provided with a column 23, with the positioning hole 9 located at the center of the column 23 and passing through both ends of the column 23, thereby increasing the depth of the positioning hole 9. A reinforcement sleeve 24 is installed in the column 23, and the reinforcement sleeve 24 is press-fitted into the positioning hole 9. The reinforcement sleeve 24 is a metal sleeve, a copper sleeve in this embodiment, to prevent the drill from damaging the positioning hole 9 during drilling, which could lead to skewing of the drill or even damage to the ink cartridge.

[0026] A gap 44 for gripping the ink cartridge is arranged symmetrically on the left and right sides of the base 6, which facilitates the removal of the refilled ink cartridge.

[0027] The ink refill nozzle 10 is provided with a central pinhole, with an ink filling needle 25 installed in the pinhole. The ink filling needle 25 serves to guide the ink from the ink filling assembly 3 into the ink cartridge.

[0028] Furthermore, the ink filling needle 25 is fixed to the needle hole by adhesive, which not only serves to fix it but also has a sealing effect.

[0029] Furthermore, the ink refill nozzle 10 is provided with an extension ring in the area of ​​the needle hole. The inner diameter of the extension ring corresponds to the diameter of the needle hole, thereby increasing the length of the needle hole. This increases the contact area with the ink filling needle 25, preventing the ink filling needle 25 from swinging, which could prevent the upper end of the ink filling needle 25 from interacting with the ink outlet channel.

[0030] A first embodiment represents a disposable ink refill structure: the box body 11 consists of an underlying box 26 and an overlying lid 27, wherein the air inlet 12 is arranged on the overlying lid 27 and sealed by a disposable sealing film 28, the ink outlet 13 is arranged on the underside of the underlying box 26, and the ink outlet 13 is provided internally with a first seal 29, wherein the first seal 29 is provided internally with a first ink outlet channel 30, wherein the first ink outlet channel 30 is provided internally with a first self-closing film 31 which is pierced by the ink filling needle 25 during use.

[0031] When refilling the ink cartridge, the ink outlet 13 is attached to the ink refill nozzle 10, while the ink filling needle 25 simultaneously pierces the first self-sealing film 31. After removing the disposable sealing film 28, the ink in the box body 11 is refilled into the ink cartridge via the first ink outlet channel 30.

[0032] The underlying box 26 is provided at the bottom with a downwardly inclined surface 32 which extends from the inner wall of the underlying box 26 toward the ink outlet 13, and the lowest point of the underlying box 26 is located at the ink outlet 13.

[0033] The ink flows along the inclined surface 32 toward the ink outlet 13, ensuring that all the ink in the box body 11 is directed to the ink outlet 13 and ultimately refilled into the ink cartridge via the first ink outlet channel 30. This prevents small amounts of ink from remaining in the box body 11 and resulting in ink waste.

[0034] The ink outlet 13 is provided with a retaining ring 45, while the first seal 29 is provided with an annular groove 46 on the side wall corresponding to the retaining ring 45, with the retaining ring 45 being recessed into the annular groove 46. The first seal 29 is made of silicone or other elastic materials and can be easily pressed directly into the ink outlet 13 using a device during assembly of the first seal 29.

[0035] The first seal 29 is provided with a plurality of first sealing rings 47 arranged below the annular groove 46. These first sealing rings 47 fit tightly against the ink outlet 13. After the first seal 29 is installed, the inner wall of the ink outlet 13 presses against the first sealing rings 47, which leads to a slight deformation of the first seals 47 and thereby improves the sealing effect.

[0036] On the upper side of the overlying cover 27, an annular protrusion 48 is arranged on the outside of the air inlet 12. The disposable sealing film 28 is fixed to the annular protrusion 48 by hot stamping. When the disposable sealing film 28 is hot stamped, its shape deforms according to the shape of the annular protrusion 48, thereby increasing the contact area between the disposable sealing film 28 and the annular protrusion 48 and consequently improving the adhesion. Since the air inlet 12 is located within the annular protrusion 48 and the entire annular protrusion 48 is seamlessly connected to the disposable sealing film 28, the air inlet 12 is automatically sealed.

[0037] On the upper side of the overlying cover 27, a plurality of reinforcing projections 49 are arranged on the outside of the annular projection 48. The disposable sealing film 28 is fixed to these reinforcing projections 49 by hot stamping. The reinforcing projections 49 follow a similar design principle to the annular projection 48 and primarily serve to increase the contact area with the disposable sealing film 28. This further improves the adhesive strength after hot stamping.

[0038] This prevents easy detachment of the disposable sealing film 28, which could lead to ink evaporation, leakage of ink from the box body 11 and thus to ink waste.

[0039] A second embodiment provides a multiple ink refill structure: a main ink chamber 33 and a metering chamber 34 are arranged in the box body 11 and connected to each other at their upper ends. The box body 11 is provided with an air valve chamber 35 inside, above the main ink chamber 33 and the metering chamber 34, which is connected to the two through the air inlet 12. The air inlet 12 is arranged on one side of the air valve chamber 35, and an air valve 36 for blocking the air inlet 12 is slidably installed in the air valve chamber 35. The air inlet 12 is opened when the air valve 36 is moved to a position where it is separated from the air inlet 12, and the air inlet 12 is blocked when the air valve 36 is moved to a position where it covers the air inlet 12.The ink outlet 13 is provided internally with a second seal 37, wherein the second seal 37 is provided internally with a second ink outlet channel 38, wherein the second ink outlet channel 38 is provided internally with a second self-closing film 39 which is pierced by the ink filling needle 25 during use; a removable closure cap 40 is attached to the ink outlet 13.

[0040] When not in use, both the main ink chamber 33 and the metering chamber 34 are filled with ink 65. When refilling the ink cartridge for the first time, the ink outlet 13 is plugged onto the ink refill port 10. The air valve 36 is moved to open the air inlet 12. This causes ink to flow from the metering chamber 34 through the ink outlet 13 into the ink cartridge. During subsequent ink refills, the air inlet 12 and the ink outlet 13 are closed, and the entire box body is tilted, allowing ink to flow from the main ink chamber 33 into the metering chamber 34. The process can then be repeated to refill more ink.

[0041] In Fig. 16 shows a state in which the first ink refilling has been completed, with no ink remaining in the metering chamber 34, while the amount of ink in the main ink chamber 33 remains unchanged. As shown in Fig.As shown in Figure 17, the ink flows from the main ink chamber 33 into the metering chamber 34. In this state, the metering chamber 34 is filled with ink, while the amount of ink in the main ink chamber 33 decreases.

[0042] The second seal 37 is provided on the outside with at least one second sealing ring 61. After the second seal 37 is installed, the inside of the ink outlet 13, together with the second seal 37, presses on the second sealing ring 61 and deforms it, thereby improving the sealing effect between the ink outlet 13 and the second seal 37.

[0043] The closure cap 40 is provided with at least a third sealing ring on its inside. When the closure cap 40 is attached, the closure cap 40, together with the outside of the ink outlet 13, presses against the third sealing ring and deforms it, resulting in an improved sealing effect between the ink outlet 13 and the closure cap 40.

[0044] The closure cap 40 is provided with a mounting base 64, the two being connected by a flexible band 63. The mounting base 64 is attached to the underside of the box body 11.

[0045] Furthermore, the size of the mounting base 64 is larger than the thickness of the flexible band 63. The main housing 50 is provided with a sliding opening 62, into which the flexible band 63 is inserted. This defines the mounting base 64 inside the main housing 50. After attaching the side cover 51, the closure cap 40 is considered fully installed.

[0046] Furthermore, the closure cap 40, the flexible band 63 and the mounting base 64 are formed in one piece and are made of flexible materials such as silicone.

[0047] The box body 11 includes a main body 50 and a side cover 51. The main body 50 is provided with an ink storage chamber 52 inside, the main ink chamber 33 and the metering chamber 34 being arranged at the bottom of the ink storage chamber 52, and the main ink chamber 33 and the metering chamber 34 being connected at the top of the ink storage chamber 52. A rigid sealing film 53 for sealing the ink storage chamber 52 is tightly adhered to the side wall of the ink storage chamber 52 by hot stamping and other methods to ensure sealing and prevent ink leakage.

[0048] The rear wall of the main housing 50 is provided with a viewing window 54 in the area of ​​the dosing chamber 34. The viewing window 54 is provided with a scale marking 55 that indicates the ink level in the dosing chamber 34. Ink refilling can be performed depending on the ink cartridge type, with the maximum refillable ink quantity per operation corresponding to the maximum amount indicated by the scale marking 55, i.e., the maximum capacity of the dosing chamber 34.

[0049] When refilling an ink cartridge with the same capacity as the metering chamber 34, tilting the product allows the ink to flow into the metering chamber 34. This ensures that the ink in the metering chamber 34 reaches its maximum level first, and then refilling occurs. This prevents situations where, for example, the ink cartridge capacity is 8 ml, but only 4 ml is present in the metering chamber 34 due to incomplete tilting, which would result in the ink cartridge not being fully filled and the refilling frequency increasing.

[0050] When refilling an ink cartridge with a larger capacity than the metering chamber 34, refilling can be performed in multiple steps. For example, with a 10 ml ink cartridge and a metering chamber 34 with a maximum capacity of 8 ml, 8 ml of ink can be refilled first. This product can then direct 2 ml of ink into the metering chamber 34 and then refill the remaining 2 ml.

[0051] The air valve chamber 35 is provided at the bottom with a low platform 41, a high platform 42 and an inclined surface 43 for connecting the low platform 41 and the high platform 42, wherein the air inlet 12 is arranged on the high platform 42.

[0052] When the air valve 36 is moved from the low platform 41 to the high platform 42, the air valve 36 is subjected to a greater compressive force due to the higher position of the high platform 42, thereby improving the sealing effect of the air valve 36 on the air inlet 12.

[0053] The box body 11 is provided on the outside with an opening mark G and a closing mark F corresponding to the low platform 41 and the high platform 42, respectively. The opening mark G and the closing mark F are distinguished by color, pattern, word meaning, etc., e.g., when using colors, green represents the opening mark G and red represents the closing mark F.

[0054] The air valve chamber 35 is provided with a sliding groove 56, while the air valve 36 is provided with a slider portion 57 corresponding to the sliding groove 56, the slider portion 57 being slidably installed in the sliding groove 56 to improve the stability of the sliding of the air valve 36.

[0055] Furthermore, one side of the sliding groove 56 is located on the main housing 50 and the other side on the side cover 51. Only when the side cover 51 is connected to the main housing 50 does the complete sliding groove 56 form. Therefore, during assembly, the slide portion 57 of the air valve 36 is first placed at the corresponding position of the sliding groove 56 in the main housing 50 and then the side cover 51 is attached.

[0056] The air valve 36 is provided with a push pin 58 on its top, with the push pin 58 projecting from the upper end of the air valve chamber 35 outward through the box body 11. To operate the air valve 36, it is sufficient to press the push pin 58, which facilitates operation for the user.

[0057] Furthermore, the pressure pin 58 is provided with an indicator mark H which corresponds to the opening mark G and the closing mark F. Only when the indicator mark H is aligned with either the opening mark G or the closing mark F by pressing the pressure pin 58 does this indicate that the air valve 36 has been correctly moved into position.

[0058] The air valve 36 is provided on its underside with a mounting post 59, to which a sealing plug 60 is attached for sealing the air inlet 12. The sealing plug 60 has a cylindrical structure with an open top. The sealing plug 60 is placed on the mounting post 59 with its side wall, and the sealing plug 60 seals the air inlet 12 with its lower region. Furthermore, the sealing plug 60 is made of a flexible material such as silicone. When the air valve 36 is moved from the low platform 41 to the high platform 42, the lower region of the sealing plug 60 is compressed, which leads to further deformation and thereby improves the sealing effect on the air inlet 12.

Claims

[1] Ink refill kit for recycled ink cartridges, characterized bythat the set comprises a drilling assembly (1), a positioning assembly (2), and an ink filling assembly (3), wherein the drilling assembly (1) comprises a drill (5) driven by a motor (4), the positioning assembly (2) comprises a base (6) for fixing the ink cartridge, wherein a drilling positioning cover (7) and an ink filling positioning cover (8) can be alternatively placed on the base (6), wherein the drilling positioning cover (7) is provided with a positioning hole (9) for precisely guiding the drill (5), and the ink filling positioning cover (8) is provided with an ink refill nozzle (10) at a position corresponding to the bore, and the ink filling assembly (3) comprises a box body (11) with ink stored therein, wherein the box body (11) is provided with an air inlet (12) at an upper end, and the box body (11) is provided with an ink outlet (13) at the bottom,which interacts with the ink refill nozzle (10). [2] Ink refill kit for recycled ink cartridges according to claim 1, characterized by that the base (6) is provided on the inside with a cavity (14) for fixing the ink cartridge, wherein first positioning sections (15) are arranged symmetrically on the left and right sides of the cavity (14), the upper surfaces of the first positioning sections (15) resting on the upper flanged edge of the ink cartridge, and a second positioning section (17) and a third positioning section (18) are arranged on the front and rear sides of the cavity (14). [3] Ink refill kit for recycled ink cartridges according to claim 2, characterized bythat the drilling positioning cover (7) and the ink filling positioning cover (8) are provided with a first anti-confusion plate (19) and a second anti-confusion plate (20) corresponding to the second positioning section (17), respectively. [4] Ink refill kit for recycled ink cartridges according to claim 3, characterized by that the drilling positioning cover (7) and the ink filling positioning cover (8) are provided on the lower edge with a first positioning edge (21) and a second positioning edge (22), respectively, wherein, when the drilling positioning cover (7) or the ink filling positioning cover (8) is placed, the outer sides of the first positioning edge (21) and the first anti-confusion plate (19) or the second positioning edge (22) and the second anti-confusion plate (20) rest against the inner wall of the cavity (14). [5] Ink refill kit for recycled ink cartridges according to claim 1, characterized bythat the drilling positioning cover (7) is provided with a column (23), wherein the positioning hole (9) is arranged in the center of the column (23) and a reinforcing sleeve (24) is installed in the column (23). [6] Ink refill kit for recycled ink cartridges according to claim 1, characterized by that the ink refill nozzle (10) is provided centrally with a needle hole, wherein an ink filling needle (25) is installed in the needle hole. [7] Ink refill kit for recycled ink cartridges according to claim 6, characterized byin that the box body (11) consists of an underlying box (26) and an overlying lid (27), wherein the air inlet (12) is arranged on the overlying lid (27) and sealed by a disposable sealing film (28), the ink outlet (13) is arranged on the underside of the underlying box (26), and the ink outlet (13) is provided on the inside with a first seal (29), wherein the first seal (29) is provided on the inside with a first ink outlet channel (30), wherein the first ink outlet channel (30) is provided on the inside with a first self-closing film (31) which is pierced by the ink filling needle (25) during use. [8] Ink refill kit for recycled ink cartridges according to claim 7, characterized bythat the underlying box (26) is provided at the bottom with a downwardly inclined surface (32) which runs from the inner wall of the underlying box (26) in the direction of the ink outlet (13), and the lowest point of the underlying box (26) is located at the ink outlet (13). [9] Ink refill kit for recycled ink cartridges according to claim 6, characterized bythat the box body (11) is provided internally with a main ink chamber (33) and a metering chamber (34) which are connected to each other at their upper ends, and the box body (11) is provided internally above the main ink chamber (33) and the metering chamber (34) with an air valve chamber (35) which is connected to the two through the air inlet (12), wherein the air inlet (12) is arranged on one side of the air valve chamber (35), and in the air valve chamber (35) an air valve (36) for blocking the air inlet (12) is slidably installed, and the ink outlet (13) is provided internally with a second seal (37), wherein the second seal (37) is provided internally with a second ink outlet channel (38), wherein the second ink outlet channel (38) is provided internally with a second self-closing film (39) which, during use, is ink filling needle (25) is pierced;a removable cap (40) is attached to the ink outlet (13); [10] Ink refill kit for recycled ink cartridges according to claim 9, characterized by that the air valve chamber (35) is provided at the bottom with a low platform (41), a high platform (42) and an inclined surface (43) for connecting the low platform (41) and the high platform (42), wherein the air inlet (12) is arranged on the high platform (42).

Images