A cartridge fixing device for inkjet printers

The design of the dual fixing structure and limiting components solves the problem of ink cartridges loosening and falling off during vibration, thus improving printing stability and long-term operational reliability of the equipment.

CN224311462UActive Publication Date: 2026-06-02SHANGHAI JUNDA MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI JUNDA MACHINERY
Filing Date
2025-08-18
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing ink cartridge fixing method of inkjet printers is prone to loosening and falling off during vibration or positional changes, resulting in a decrease in printing quality and production efficiency. In addition, the single-point snap-fit ​​structure is prone to wear and inaccurate positioning, posing a safety hazard.

Method used

It adopts a double fixing structure, which uses the convex shaft of the locking component to engage with the ink cartridge slot, and uses the limiting component to apply stable pressure from above. Combined with the design of the inclined surface and the sliding shaft, it can achieve stable fixing of the ink cartridge.

Benefits of technology

It effectively prevents ink cartridges from loosening or falling off during vibration or long-term operation, improves printing stability, reduces the risk of wear and inaccurate positioning, and ensures long-term stable operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of inkjet printer technology and discloses an inkjet printer cartridge fixing device. The cartridge is inserted into the inkjet printer and operates therein. It includes a groove on the inkjet printer and a slot on the cartridge. One side of the groove extends outward to form an inclined surface. A sliding shaft is provided on the inkjet printer, positioned above the side of the groove on the inclined surface. A limiting component is provided inside the sliding shaft, and the bottom of the limiting component moves along the inclined surface. A locking member is provided on the side of the inkjet printer away from the sliding shaft, protruding outward to form a convex shaft. This device adopts a double fixing structure. On one hand, the convex shaft of the locking member securely engages with the cartridge slot; on the other hand, the limiting component applies stable pressure to the cartridge from above, effectively preventing the cartridge from loosening or falling off during vibration, movement, or prolonged operation of the inkjet printer.
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Description

Technical Field

[0001] This utility model relates to the field of inkjet printer technology, specifically to an inkjet printer cartridge fixing device. Background Technology

[0002] In existing technologies, ink cartridges are usually installed in the inkjet printer body by plugging or snapping, and some structures also use screws for additional fixation. However, since inkjet printers are often accompanied by certain mechanical vibrations or positional changes during operation, traditional ink cartridge fixing methods have problems such as loose connections, inaccurate positioning, and easy displacement. In severe cases, this can even lead to ink cartridges falling off, ink interruption, misprinting, or equipment failure, affecting printing quality and production efficiency.

[0003] In addition, some inkjet printer cartridge fixing structures are relatively simple, relying only on single-point snap-fit ​​or clamping components, lacking composite structural support. This can lead to wear and tear on the clips, loose assembly, and inaccurate repositioning during repeated disassembly and replacement, which is not conducive to the long-term stable operation of the equipment. Especially in industrial scenarios with high frequency of use or strong vibration, safety hazards are more likely to occur.

[0004] In view of the above, this application proposes a cartridge fixing device for inkjet printers to solve the above problems, which can effectively improve the installation stability of the cartridge in the inkjet printer and reduce printing failures caused by loosening. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a marking printer ink cartridge fixing device, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cartridge fixing device for an inkjet printer, wherein the cartridge is inserted into the inkjet printer for operation, includes a groove formed on the inkjet printer and a slot formed on the cartridge. The top of one side of the groove extends outward to form an inclined surface. A sliding shaft is provided on the inkjet printer. The sliding shaft is located above the side of the groove that is located on the inclined surface. A limiting component is provided inside the sliding shaft. The bottom of the limiting component moves along the inclined surface. A locking member is provided on the side of the inkjet printer away from the sliding shaft. The locking member protrudes outward to form a convex shaft.

[0008] Optionally, the convex shaft is adapted to the size of the slot, and the locking member moves to insert into the slot.

[0009] Optionally, the locking component includes an inclined plate and a movable plate;

[0010] Two movable plates are provided, which are slidably mounted on the inkjet printer on both sides of the groove;

[0011] The inclined plate is located on the side of the moving plate away from the groove, and its inclined orientation corresponds to that of the ink cartridge.

[0012] Optionally, the limiting assembly includes a telescopic rod, a base plate, a connecting plate, and a compression spring;

[0013] The telescopic rod is connected to the bottom of the sliding shaft via a pivot.

[0014] The base plate is connected to one end of the telescopic rod via a pivot.

[0015] The connecting plate is fixedly connected to the middle of the base plate, and its top is inserted into the inner cavity of the sliding shaft;

[0016] The compression spring is located at the midpoint of the connection between the connecting plate and the top of the inner cavity of the sliding shaft.

[0017] Optionally, the sliding shaft surface is recessed downwards and has a push groove, and an anti-slip strip is provided in the push groove.

[0018] Optionally, anti-slip pads are provided on both sides of the sliding shaft.

[0019] This utility model provides a printer ink cartridge fixing device, which has the following advantages:

[0020] 1. The device adopts a double fixing structure. On the one hand, the convex shaft of the locking component is firmly locked to the ink cartridge slot. On the other hand, the limiting component applies stable pressure to the ink cartridge from above, effectively preventing the ink cartridge from loosening or falling off during the vibration, movement or long-term operation of the inkjet printer. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the inclined surface structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the limiting component structure of this utility model;

[0024] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Ink cartridge; 11. Slot; 2. Inkjet printer; 3. Groove; 4. Angled surface; 5. Sliding shaft; 51. Push groove; 52. Anti-slip strip; 53. Anti-slip sticker; 6. Limiting component; 61. Telescopic rod; 62. Base plate; 63. Connecting plate; 64. Compression spring; 7. Locking component; 71. Angled plate; 72. Moving plate; 8. Protruding shaft. Detailed Implementation

[0026] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this utility model and simplifying the description, and do not 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 this utility model.

[0028] This application proposes a cartridge fixing device for an inkjet printer, the details of which are as follows:

[0029] For reference Figure 1 This application mainly consists of a card slot 11, an inclined surface 4, a sliding shaft 5, a limiting component 6, a locking component 7, and a convex shaft 8 that are configured together. The coordinated arrangement of these structures ensures that the ink cartridge is properly fixed, preventing risks such as slippage during vibration.

[0030] For reference Figure 1-2 It includes a groove 3 on the inkjet printer 2 and a slot 11 on the ink cartridge 1. The ink cartridge 1 is inserted into the groove 3 on the inkjet printer 2 for operation. The connection is a conventional connection form and is a common and mature technology in this field. This application will not elaborate further.

[0031] For reference Figure 3-4 The slot 11 and the locking component 7 located on the side of the inkjet printer 2 away from the sliding shaft 5 cooperate with each other, thereby achieving a locking relationship through the movement of the locking component 7. Specifically, the locking component 7 includes an inclined plate 71 and a movable plate 72. There are two movable plates 72, which are slidably mounted on the inkjet printer 2 on both sides of the groove 3. The inclined plate 71 is located on the side of the movable plate 72 away from the groove 3, and its tilt direction corresponds to that of the ink cartridge 1. When locking is achieved, the movable plate 72 is moved, which drives the inclined plate 71 to move until the locking component 7 protrudes outward to form a convex shaft 8 that locks into the slot 11. The movable plate 72 is fixed by bolts on both sides. The design of the inclined plate 71 fitting against one side of the ink cartridge 1 can reduce the problem of deformation during long-term operation.

[0032] For reference Figure 1-2The top of one side of the groove 3 extends outward to form an inclined surface 4. A sliding shaft 5 is provided on the inkjet printer 2. The sliding shaft 5 is located above the groove 3 on one side of the inclined surface 4. A limit component 6 is provided inside the sliding shaft 5. The bottom of the limit component 6 moves along the inclined surface 4. The inclined surface 4 works in coordination with the movement path of the limit component 6 when the sliding shaft 5 moves.

[0033] For reference Figure 3-4 The limiting assembly 6 includes a telescopic rod 61, a base plate 62, a connecting plate 63, and a compression spring 64. The telescopic rod 61 is connected to the bottom of the sliding shaft 5 via a pivot. The base plate 62 is connected to one end of the telescopic rod 61 via a pivot. The connecting plate 63 is fixedly connected to the middle of the base plate 62, with its top inserted into the inner cavity of the sliding shaft 5. The compression spring 64 is located at the middle of the connection between the connecting plate 63 and the top of the inner cavity of the sliding shaft 5. When the sliding shaft 5 moves, the telescopic rod 61 moves in coordination with the base plate 62. When the sliding shaft 5 moves, the height of the end of the telescopic rod 61 away from the base plate 62 decreases. The height of the base plate 62 will not change as it moves along the inclined surface 4 during the movement of the sliding shaft 5, thereby changing its height until it matches the height of the other end. During the displacement, the telescopic rod 61 will extend and retract to match its movement diameter range, ensuring that it moves within a reasonable range. When the base plate 62 moves up and down, the compression spring 64 will compress the connecting plate 63 to move up and down. When the compression spring 64 is not compressing, the base plate 62 will be pressed against the upper surface of the ink cartridge 1 and fixed by bolts to prevent the sliding shaft 5 from sliding on its own.

[0034] As mentioned above, this achieves the effect of fixing ink cartridge 1. It should be noted that if the connecting plate 63 needs to be pressed against ink cartridge 1, there is a connecting and fixing structure for ink cartridge 1 on both sides. After the movement of the two sets of structures, ink cartridge 1 is fixed, thereby preventing ink cartridge 1 from falling out in subsequent work.

[0035] For reference Figure 1-2 The sliding shaft 5 has a recessed groove 51 on its surface, and an anti-slip strip 52 is provided inside the groove 51. The groove 51 facilitates movement, while the anti-slip strip 52 provides anti-slip function during the process, preventing the shaft from resetting midway during the movement. Anti-slip pads 53 are provided on both sides of the sliding shaft 5 to prevent slippage when moving the sliding shaft 5 through the sides.

[0036] In this invention, the working steps of the device are as follows:

[0037] 1. First, place ink cartridge 1 in the groove 3;

[0038] 2. Next, move the locking component 7 and engage the protruding shaft 8 on the locking component 7 with the corresponding slot 11 on the ink cartridge 1. Then, fix the locking component 7 with bolts.

[0039] 3. Then, by moving the sliding shaft 5, the limiting component 6 is moved in the direction of the inclined surface 4 until the bottom plate 62 in the limiting component 6 is pressed against the upper surface of the ink cartridge 1.

[0040] 4. Finally, after moving the limiting component 6, fix it with bolts. After fixing, operate the inkjet printer 2 to effectively prevent the ink cartridge 1 from falling out.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cartridge fixing device for an inkjet printer, wherein the cartridge (1) is inserted into the inkjet printer (2) for operation, characterized in that: Includes a groove (3) on the inkjet printer (2) and a slot (11) on the ink cartridge (1). The top of one side of the groove (3) extends outward to form an inclined surface (4). A sliding shaft (5) is provided on the inkjet printer (2). The sliding shaft (5) is located above the groove (3) on one side of the inclined surface (4). A limiting component (6) is provided inside the sliding shaft (5). The bottom of the limiting component (6) moves along the inclined surface (4). A locking component (7) is provided on the side of the inkjet printer (2) away from the sliding shaft (5). The locking component (7) protrudes outward to form a convex shaft (8).

2. The inkjet printer cartridge fixing device according to claim 1, characterized in that: The convex shaft (8) is adapted to the size of the slot (11), and the slot (11) is inserted into the slot through the movement of the locking member (7).

3. The inkjet printer cartridge fixing device according to claim 1, characterized in that: The locking component (7) includes an inclined plate (71) and a movable plate (72); Two movable plates (72) are provided, which are slidably mounted on the inkjet printer (2) on both sides of the groove (3); The inclined plate (71) is located on the side of the movable plate (72) away from the groove (3), and its inclined orientation corresponds to that of the ink cartridge (1).

4. The inkjet printer cartridge fixing device according to claim 1, characterized in that: The limiting component (6) includes a telescopic rod (61), a base plate (62), a connecting plate (63), and a compression spring (64). The telescopic rod (61) is connected to the bottom of the sliding shaft (5) via a pivot. The base plate (62) is connected to one end of the telescopic rod (61) via a pivot. The connecting plate (63) is fixedly connected to the middle part of the base plate (62), and its top is inserted into the inner cavity of the sliding shaft (5); The compression spring (64) is located at the middle of the connection between the connecting plate (63) and the top of the inner cavity of the sliding shaft (5).

5. The inkjet printer cartridge fixing device according to claim 1, characterized in that: The sliding shaft (5) has a downward recessed groove (51) and an anti-slip strip (52) is provided inside the groove (51).

6. The inkjet printer cartridge fixing device according to claim 1, characterized in that: Anti-slip pads (53) are provided on both sides of the sliding shaft (5).