A replaceable inkjet printer cartridge structure
By designing a replaceable inkjet printer cartridge structure, the system enables convenient filter replacement and ensures cartridge airtightness, solving the problem of users being unable to replace filters themselves, simplifying the maintenance process, and preventing ink leakage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU YINGJIATE SPRAY PRINTING TECH CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-31
AI Technical Summary
The filters of existing inkjet printers are prone to clogging after prolonged use, and the integrated design of the ink cartridge makes it difficult for ordinary users to replace the filters themselves, requiring professional repair services.
Design a replaceable inkjet printer cartridge structure that uses a combination of sliding frame and limiting groove to facilitate filter replacement, while a protective mechanism prevents ink leakage and simplifies the user maintenance process.
Users can replace the filter themselves without disassembling the ink cartridge, simplifying the maintenance process, enhancing the ink cartridge's airtightness, and preventing ink leakage.
Smart Images

Figure CN224576359U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of printing equipment technology, specifically relating to a replaceable inkjet printer cartridge structure. Background Technology
[0002] Inkjet printers mainly consist of printheads, ink systems, control systems, and paper feeding mechanisms. They work by injecting ink into the printhead and then controlling the direction and intensity of the ink jet to propel it onto the printing medium, forming a printed pattern. Inkjet printers are primarily divided into two types: continuous inkjet and non-continuous inkjet. Continuous inkjet printers continuously eject ink streams. When printing is not needed, a dedicated chamber stores the ejected ink, filters it, and refills it into the ink cartridge for reuse.
[0003] Currently, when using an inkjet printer, ink needs to be refilled after the ink inside runs out. The filter in the ink cartridge filters the ink. Over time, the filter will become clogged. The filter is usually fixed inside the ink cartridge, and the ink cartridge body is an integrated design. It requires professional tools to disassemble the ink cartridge for replacement. Ordinary users cannot do it themselves and need to rely on after-sales service. To address this issue, we propose a replaceable inkjet printer cartridge structure. Utility Model Content
[0004] The purpose of this invention is to provide a replaceable inkjet printer cartridge structure that can solve the problems mentioned in the background art.
[0005] The specific technical solution adopted in this utility model is as follows: A replaceable inkjet printer cartridge structure includes a housing, a printhead fixedly connected to the outer surface of the housing, a metal contact plate fixedly connected to the outer surface of the housing, a mounting shell fixedly connected to the inner side wall of the housing, an ink-absorbing sponge provided on the inner side wall of the mounting shell, a sliding frame slidably connected to the inner side wall of the mounting shell, a filter screen provided inside the sliding frame, a sealing plate rotatably connected to the outer surface of the housing, a fixing mechanism provided on the outer surface of the housing, a connecting plate fixedly connected to the outer surface of the housing, an ink filling port provided on the outer surface of the connecting plate, and a protective mechanism fixedly connected to the outer surface of the housing.
[0006] The present invention is further configured such that: the fixing mechanism includes a first limiting slide groove, a baffle is slidably connected to the inner wall of the first limiting slide groove, a first elastic element is fixedly connected to the outer surface of the baffle and the inner wall of the first limiting slide groove, and a second limiting slide groove is provided on the outer surface of the sealing plate.
[0007] The present invention is further configured such that: a plurality of second elastic elements are fixedly connected to the inner sidewall of the outer shell, and a top plate is fixedly connected to the outer surface of each second elastic element.
[0008] The present invention is further configured such that: the protective mechanism includes a tension spring, and a protective cloth is fixedly connected to the outer surface of the tension spring.
[0009] The present invention is further configured such that: a connecting rod is fixedly connected to the outer surface of the protective cloth, and two buckles are fixedly connected to the outer surface of the outer shell.
[0010] The present invention is further configured such that: a sealing ring is fixedly connected to the inner wall of the mounting shell, and a plurality of elastic pull ropes are fixedly connected to the inner wall of the mounting shell.
[0011] The technical effects achieved by this utility model are as follows: This utility model discloses a replaceable inkjet printer cartridge structure. By moving the baffle, under the force of the second elastic element, the top plate will pop out the sliding frame and filter, allowing the filter to be removed directly without disassembling the cartridge body, simplifying the replacement process. Ordinary users can complete the maintenance themselves. The baffle is reset by the first elastic element and pushed into the second limiting groove to prevent the sliding frame from popping out during use. By installing a sealing ring, the internal airtightness of the cartridge can be enhanced, effectively preventing ink leakage. Attached Figure Description
[0012] Figure 1 This is a practical first-person structural view diagram; Figure 2 This is a practical second structural perspective diagram; Figure 3 This is a practical sectional view; Figure 4 This is a practical interior top view; Figure 5 This is a practical book Figure 1 Enlarged diagram of part A in the image.
[0013] The attached diagram lists the components represented by each number as follows: 1. Outer shell; 2. Printhead; 3. Metal contact plate; 4. Mounting shell; 5. Ink-absorbing sponge; 6. Sliding frame; 7. Filter screen; 8. Sealing plate; 9. Fixing mechanism; 901. First limiting slide groove; 902. Baffle; 903. First elastic element; 904. Second limiting slide groove; 10. Second elastic element; 11. Top plate; 12. Connecting plate; 13. Ink filling port; 14. Protective mechanism; 1401. Tension spring; 1402. Protective cloth; 1403. Connecting rod; 1404. Buckle; 15. Sealing ring; 16. Elastic pull rope; Detailed Implementation
[0014] To make the purpose and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0015] like Figure 1 As shown, a replaceable inkjet printer cartridge structure includes a housing 1, a printhead 2 fixedly connected to the outer surface of the housing 1, a metal contact plate 3 fixedly connected to the outer surface of the housing 1, a mounting shell 4 fixedly connected to the inner side wall of the housing 1, an ink-absorbing sponge 5 provided on the inner side wall of the mounting shell 4, a sliding frame 6 slidably connected to the inner side wall of the mounting shell 4, a filter 7 provided inside the sliding frame 6, a sealing plate 8 rotatably connected to the outer surface of the housing 1, a fixing mechanism 9 provided on the outer surface of the housing 1, a connecting plate 12 fixedly connected to the outer surface of the housing 1, an ink filling port 13 provided on the outer surface of the connecting plate 12, and a protective mechanism 14 fixedly connected to the outer surface of the housing 1. By opening the sealing plate 8 through the fixing mechanism 9, the sliding frame 6 can be removed, and the filter 7 can be replaced from the left and right sides of the sliding frame 6, thus simplifying the filter 7 replacement process.
[0016] The fixing mechanism 9 includes a first limiting slide groove 901, a baffle 902 is slidably connected to the inner wall of the first limiting slide groove 901, and a first elastic element 903 is fixedly connected to the outer surface of the baffle 902 and the inner wall of the first limiting slide groove 901. A second limiting slide groove 904 is opened on the outer surface of the sealing plate 8. A plurality of second elastic elements 10 are fixedly connected to the inner side wall of the outer shell 1. A top plate 11 is fixedly connected to the outer surface of each second elastic element 10. The baffle 902 is pushed into the second limiting slide groove 904 and the first limiting slide groove 901 by the first elastic element 903, which can limit and fix the sealing plate 8. After the sealing plate 8 is opened by the force of the second elastic element 10, the top plate 11 will pop out the sliding frame 6, which makes it easy to remove the sliding frame 6 from the outer shell 1. The outer surface of the second elastic element 10 is provided with an anti-corrosion layer.
[0017] The protective mechanism 14 includes a tension spring 1401, a protective cloth 1402 fixedly connected to the outer surface of the tension spring 1401, a connecting rod 1403 fixedly connected to the outer surface of the protective cloth 1402, two buckles 1404 fixedly connected to the outer surface of the outer shell 1, a sealing ring 15 fixedly connected to the inner side wall of the mounting shell 4, and multiple elastic pull ropes 16 fixedly connected to the inner side wall of the mounting shell 4. By pulling the protective cloth 1402 and fixing the connecting rod 1403 to the buckles 1404, the protective cloth 1402 can cover the metal contact plate 3, preventing the metal contact plate 3 from being contaminated by ink or other stains when replacing the filter 7 or refilling ink. By setting the elastic pull ropes 16, the ink-absorbing sponge 5 can be supported and limited, preventing the ink-absorbing sponge 5 from moving downward when the sliding frame 6 pops out.
[0018] The working principle of this utility model is as follows: When using this device, remove it from the printer, pull out the protective cloth 1402, and fix the connecting rod 1403 to the buckle 1404. Move the baffle 902 so that it disengages from the second limiting slide groove 904. Under the force of the second elastic element 10, the top plate 11 pushes out the sliding frame 6 and the filter screen 7. Take out the filter screen 7 for replacement and push it back into the outer shell 1. Close the sealing plate 8. Under the force of the first elastic element 903, push the baffle 902 into the second limiting slide groove 904 to limit the sealing plate 8. Remove the connecting rod 1403 from the buckle 1404. Under the force of the tension spring 1401, retract the protective cloth 1402.
[0019] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.
Claims
1. A replaceable inkjet printer cartridge structure, characterized by: Includes a housing (1), a print head (2) is fixedly connected to the outer surface of the housing (1), a metal contact plate (3) is fixedly connected to the outer surface of the housing (1), a mounting shell (4) is fixedly connected to the inner side wall of the housing (1), an ink-absorbing sponge (5) is provided on the inner side wall of the mounting shell (4), a sliding frame (6) is slidably connected to the inner side wall of the mounting shell (4), and a filter screen (7) is provided inside the sliding frame (6). The outer surface of the outer shell (1) is rotatably connected to a sealing plate (8), the outer surface of the outer shell (1) is provided with a fixing mechanism (9), the outer surface of the outer shell (1) is fixedly connected to a connecting plate (12), the outer surface of the connecting plate (12) is provided with an ink filling port (13), and the outer surface of the outer shell (1) is fixedly connected to a protective mechanism (14).
2. The replaceable inkjet printer cartridge structure of claim 1, wherein: The fixing mechanism (9) includes a first limiting slide groove (901), a baffle (902) is slidably connected to the inner wall of the first limiting slide groove (901), and a first elastic element (903) is fixedly connected to the outer surface of the baffle (902) and the inner wall of the first limiting slide groove (901). A second limiting slide groove (904) is opened on the outer surface of the sealing plate (8).
3. The replaceable inkjet printer cartridge structure of claim 1, wherein: The inner wall of the outer shell (1) is fixedly connected with a plurality of second elastic elements (10), and a top plate (11) is fixedly connected to the outer surface of each second elastic element (10).
4. The replaceable inkjet printer cartridge structure of claim 1, wherein: The protective mechanism (14) includes a tension spring (1401), and a protective cloth (1402) is fixedly connected to the outer surface of the tension spring (1401).
5. A replaceable inkjet printer cartridge structure according to claim 4, wherein: The outer surface of the protective cloth (1402) is fixedly connected to a connecting rod (1403), and the outer surface of the outer shell (1) is fixedly connected to two buckles (1404).
6. The replaceable inkjet printer cartridge structure of claim 1, wherein: A sealing ring (15) is fixedly connected to the inner wall of the mounting shell (4), and a plurality of elastic pull ropes (16) are fixedly connected to the inner wall of the mounting shell (4).