Ink cartridge for a printer

Abstract

The utility model discloses an ink cartridge for a printer in the field of ink cartridges, comprising a box body and a cover body, the box body having an opening at the top and at least two cavities for containing ink therein, a nozzle connected to all the cavities at the bottom of the box body, a cover body arranged at the box body opening for sealing, and at least two pressure relief ports and ink injection ports arranged on the cover body surface, the pressure relief ports and the ink injection ports both correspond to and are connected to the cavities one by one, at least two pressure relief protrusions covering the corresponding pressure relief ports are arranged on the cover body surface, the pressure relief protrusions are hollowed out inside and are connected to the pressure relief ports, at least two pressure relief through holes connected to the hollowed-out parts are arranged on the side of the pressure relief protrusions, the ink injection port opening diameter gradually increases toward one end of the cover body surface, a sealing plug fixed to the inner wall is also arranged in the ink injection port, a pull ring for hand-carrying is arranged on the top of the sealing plug, and an anti-dropping protrusion protruding below the ink injection port is arranged on the bottom of the sealing plug. The pressure relief protrusion can protect the pressure relief port from being blocked, and the ink injection port shape and the sealing plug are fixed with an anti-dropping protrusion.

Description

Technical Field

[0001] The utility model relates to the technical field of ink cartridges, in particular to an ink cartridge used for a printer. Background Art

[0002] A printer ink cartridge is a device used to store and release printer ink. It is a component in an inkjet printer that stores printing ink and ultimately completes printing. In order to save costs, many printer ink cartridges have a structure that allows ink to be refilled repeatedly, which can reduce the number of times ink cartridges are purchased and meet the needs of most people.

[0003] During inkjet printing, in order to maintain the stability of the pressure inside the ink cartridge, the cavity containing the ink is provided with a pressure relief port that is connected to the outside of the ink cartridge, otherwise the pressure inside the ink cartridge is too high and the ink cannot be discharged. However, many of the current pressure relief ports of ink cartridges are directly exposed to the air, lack surface protection, and are easily clogged by impurities. In addition, the surface of the ink cartridge is provided with a sealing plug that blocks the ink injection opening. However, due to the shape of the ink injection port, the current sealing plugs are basically thin-film structures, and are not fixed in the ink injection port, so they are easy to fall off and cause loss. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art solutions, the utility model provides an ink cartridge for a printer, which can effectively solve the technical problems that the current ink cartridge pressure relief port is easily blocked and the sealing plug of the ink filling port is easily fallen off.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] 14. The ink cartridge of claim 13, wherein the ink cartridge comprises a cartridge body and a cover body, wherein the top of the cartridge body is open and is internally provided with at least two cavities for containing ink, the bottom of the cartridge body is provided with a nozzle connected to all the cavities, the cover body is sealed at the opening of the cartridge body, and the surface of the cover body is provided with at least two pressure relief ports and an ink injection port, the pressure relief ports and the ink injection port both correspond to and are communicated with the cavities one by one, the surface of the cover body is provided with at least two pressure relief protrusions covering the corresponding pressure relief ports, the interior of the pressure relief protrusion is hollowed out and is communicated with the pressure relief port, the side of the pressure relief protrusion is provided with at least two pressure relief through holes communicated with the internal hollowing out, the opening diameter of the ink injection port gradually increases toward one end of the cover body surface, a sealing plug fixed close to the inner wall is further provided in the ink injection port, a pull ring for carrying is provided on the top of the sealing plug, and an anti-slip protrusion is provided on the bottom of the sealing plug protruding below the ink injection port.

[0007] Furthermore, an infusion block is provided at the bottom of the cavity, and a conducting infusion channel is provided between the upper surface of the infusion block and the nozzle.

[0008] Furthermore, a chip for driving and controlling the nozzle is provided on the side of the box body, and a conductive ink ribbon is connected between the chip and the nozzle.

[0009] Furthermore, at least two transparent windows for directly viewing the interior of the corresponding cavity are provided on the side of the box body.

[0010] Furthermore, the bottom of the cover body is provided with at least two sealing clamps with protrusions tightly contacting the inner walls of the corresponding cavities.

[0011] Furthermore, a first partition plate fixed to the bottom of the cover body is provided between the pressure relief port and the ink injection port which are connected to the same cavity, and the first partition plate extends into the cavity.

[0012] Furthermore, a second partition plate fixed around the pressure relief port is provided at the bottom of the cover body.

[0013] Furthermore, the cover body surface is provided with at least two raised liquid injection protrusions, and the ink injection port is provided on the surface of the corresponding liquid injection protrusions.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model adds a pressure relief protrusion on the surface of the cover body to protect the pressure relief port. The pressure relief protrusion blocks and protects the pressure relief port from being blocked while maintaining conduction with the pressure relief port, thereby maintaining the stability of the pressure inside the cavity. The position of the ink filling port on the surface of the cover body adopts an inverted cone structure, which increases the contact area with the sealing plug. At the same time, a snap-fit ​​anti-drop protrusion is added to the bottom of the sealing plug to enhance the firmness of the sealing plug and prevent it from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the embodiment of the utility model from another angle;

[0018] Figure 3 This is a schematic diagram of the structure with filter holes inside the box body of the utility model embodiment;

[0019] Figure 4 This is a schematic diagram of the structure of the infusion channel inside the box body of the utility model embodiment;

[0020] Figure 5 This is a schematic diagram of the surface structure of the cover body of the utility model embodiment;

[0021] Figure 6 This is a schematic diagram of the bottom structure of the cover body of the utility model embodiment;

[0022] Figure 7 This is a schematic diagram of the structure of the pressure relief protrusion of the embodiment of the utility model;

[0023] Figure 8This is a schematic diagram of the sealing plug structure of an embodiment of the utility model;

[0024] Numbers in the figure:

[0025] 1-box body, 2-cover body, 3-cavity, 4-nozzle, 5-pressure relief port, 6-ink filling port, 7-pressure relief protrusion, 8-pressure relief through hole, 9-sealing plug, 10-pull ring, 11-anti-slip protrusion, 12-infusion protrusion, 13-infusion channel, 14-chip, 15-ink ribbon, 16-transparent window, 17-sealing clamp, 18-first partition, 19-second partition, 20-infusion protrusion, 21-filter hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-8 As shown, the utility model provides an ink cartridge for a printer, which is mainly used on an inkjet printer. It can be used to store the ink of the printer and can be used for inkjet printing. Its specific structure mainly includes a box body 1 and a cover body 2. After the box body 1 and the cover body 2 are combined, a cavity 3 for storing ink is formed inside, and a nozzle 4 for completing inkjet printing is arranged at the bottom of the box body 1.

[0028] The box body 1 is a top-open structure, and is provided with three cavities 3 for containing ink. The user can place three different colors of ink in the three cavities 3. The nozzle 4 arranged at the bottom of the box body 1 is connected to the three cavities 3 at the same time, and receives the ink in the three cavities 3 for printing operation. Therefore, a conductive infusion channel 13 is provided between the cavity 3 and the nozzle 4. An infusion convex block 12 is also provided at the bottom of the cavity 3, and the conductive position of the infusion channel 13 in the cavity 3 is set on the upper surface of the infusion convex block 12, so that some suspended impurities in the ink can be purified. A plurality of filter holes 21 are provided on the surface of the infusion convex block 12, and the ink flows into the infusion channel 13 after being filtered through 21, so as to prevent the nozzle 4 from being blocked by impurities.

[0029] The nozzle 4 at the bottom of the box body 1 is assembled in an embedded manner. The assembled nozzle 4 is driven and controlled by a chip 14 on one side of the box body 1. In order to better connect the two and conduct electricity, an ink ribbon 15 is connected between the nozzle 4 and the chip 14, and the chip 14 is mounted on the surface of the ink ribbon 15.

[0030] In order to avoid the situation that the ink cartridge is insufficient in ink during printing, three transparent windows 16 are opened on the side of the cartridge body 1 to directly see the inside of different cavities 3. The transparent windows 16 can be made of transparent acrylic or transparent glass. The user can directly see and know the amount of ink of different colors through the three transparent windows 16. When the ink is insufficient, the corresponding color of ink needs to be injected into the inside.

[0031] The cover body 2 connected to the box body 1 is sealed at the opening of the box body 1, and the three cavities 3 inside the box body 1 form three independently sealed spaces. In order to prevent the inks in the three cavities 3 from mixing and to enhance the sealing of the cavities 3, three sealing rings 17 are added to the bottom of the cover body 2 to seal with the inner walls of the corresponding cavities 3. At the same time, three conductive pressure relief ports 5 and three conductive ink injection ports 6 are also provided on the surface of the cover body 2. Each cavity 3 corresponds to a pressure relief port 5 and an ink injection port 6, wherein the pressure relief port 5 is used to adjust the pressure inside the cavity 3, and the ink injection port 6 is used to facilitate the user to inject the corresponding ink into the cavity 3.

[0032] The positions where the pressure relief ports 5 are provided on the surface of the cover body 2 are all provided with pressure relief protrusions 7 covering the surface. The interior of the pressure relief protrusions 7 is hollowed out, and the hollowed-out portion is connected to the pressure relief port 5. A plurality of pressure relief through holes 8 connected to the internal hollowed-out portion are provided on the side of the pressure relief protrusions 7. At this time, the plurality of pressure relief through holes 8 on the side of the pressure relief protrusions 7 are connected to the pressure relief port 5. While adjusting the internal pressure of the cavity 3, the pressure relief port 5 can also be protected from being blocked by impurities.

[0033] The position where the ink injection port 6 is provided on the surface of the cover body 2 is provided with a raised injection protrusion 20, and the ink injection port 6 is provided on the surface of the injection protrusion 20 and is connected to the inside of the cavity 3. In order to improve the fixity during injection and prevent overflow during injection, an inverted cone structure is added to the ink injection port 6 on the surface of the cover body 2, that is, the opening diameter of the ink injection port 6 gradually increases toward one end of the surface of the cover body 2. This structure also facilitates the user to inject ink into the cavity 3 by means of a syringe. At the same time, the sealing plug 9 filled under this structure increases the contact area, and the sealing and stability will be better. The sealing plug 9 is made of soft materials such as silica gel, and an anti-dropping protrusion 11 is provided at the bottom of the sealing plug 9, which is protruded and blocked below the ink injection port 6. The anti-dropping protrusion 11 is squeezed and deformed when the user pulls out the sealing plug 9 and is taken out from the ink injection port 6. In order to facilitate the user to quickly pull out the sealing plug 9, a pull ring 10 for the user to carry is also added to the top of the sealing plug 9.

[0034] Three first baffles 18 are also added at the bottom of the cover body 2. Each first baffle 18 extends downward into a separate cavity 3 and is arranged between the pressure relief port 5 and the ink injection port 6. When ink is injected into the cavity 3, the first baffle 18 can well block the ink falling into the cavity 3 to prevent the ink from flowing to one end of the pressure relief port 5 and blocking the pressure relief port 5. At the same time, second baffles 19 are also added around the pressure relief port 5 to further strengthen the protection of the pressure relief port 5.

[0035] Compared with the traditional technology, the present technical solution adds a pressure relief protrusion 7 on the surface of the cover body 2 to protect the pressure relief port 5. While maintaining conductivity with the pressure relief port 5, the pressure relief protrusion 7 blocks and protects the pressure relief port 5 from being blocked, thereby maintaining the stability of the pressure inside the cavity 3. The position of the ink filling port 6 on the surface of the cover body 2 adopts an inverted cone structure to increase the contact area with the sealing plug 9. At the same time, a snap-fit ​​anti-drop protrusion 11 is added to the bottom of the sealing plug 9 to enhance the firmness of the sealing plug 9 and prevent it from falling off.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. An ink cartridge for a printer, comprising a box body and a cover body, the box body having an opening at the top and at least two cavities for containing ink, the box body having a nozzle connected to all the cavities at the bottom, characterized in that: The cover body is sealed at the opening of the box body, and the surface of the cover body is provided with at least two pressure relief ports and ink injection ports, the pressure relief ports and ink injection ports are corresponding to the cavities one by one and are connected, the surface of the cover body is provided with at least two pressure relief protrusions covering the corresponding pressure relief ports, the pressure relief protrusions are hollowed out and connected to the pressure relief ports, and the side of the pressure relief protrusions is provided with at least two pressure relief through holes connected to the internal hollow parts, the opening diameter of the ink injection port gradually increases toward one end of the cover body surface, and a sealing plug fixed to the inner wall is also provided in the ink injection port, a pull ring for carrying is provided on the top of the sealing plug, and an anti-slip protrusion protruding below the ink injection port is provided on the bottom of the sealing plug.

2. An ink cartridge for a printer according to claim 1, characterized in that: An infusion lump is provided at the bottom of the cavity, and a conducting infusion channel is provided between the upper surface of the infusion lump and the nozzle.

3. An ink cartridge for a printer according to claim 1, characterized in that: A chip for driving and controlling the nozzle is arranged on the side of the box body, and a conductive ink ribbon is connected between the chip and the nozzle.

4. An ink cartridge for a printer according to claim 1 or 3, characterized in that: The side of the box body is also provided with at least two transparent windows for directly viewing the interior of the corresponding cavity.

5. The ink cartridge for a printer according to claim 1, characterized in that: The bottom of the cover body is provided with at least two sealing clamps whose protrusions are tightly attached to the inner walls of the corresponding cavities.

6. The ink cartridge for a printer according to claim 1, characterized in that: A first partition plate fixed at the bottom of the cover body is provided between the pressure relief port and the ink injection port which are connected to the same cavity, and the first partition plate extends into the cavity.

7. An ink cartridge for a printer according to claim 6, characterized in that: The bottom of the cover body is also provided with a second partition plate fixed around the pressure relief port.

8. An ink cartridge for a printer according to claim 1, 5 or 6, characterized in that: The cover body surface is provided with at least two raised liquid injection protrusions, and the ink injection port is arranged on the surface of the corresponding liquid injection protrusions.

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