A stable and easy-to-maintain ink cartridge device for inkjet printer

Abstract

The utility model relates to a kind of stable and easy maintenance's ink-jet printer ink box device, including ink box shell and ink box base, ink box base includes bottom plate, front side plate, two fender, front side plate, bottom plate and fender constitute an L-shaped installation port for the ink box shell front side and bottom loading, the middle part of bottom plate is provided with the clamping groove that penetrates out its rear end, the bottom of ink box shell is equipped with the clamping block with the convex letter shape of cross section, clamping block is used to insert into clamping groove, two fender are all fixedly connected with hinged seat, hinged seat is rotatably connected with the rotating clamping hook that is set front and back, the left and right sides of ink box shell are all integrally formed with hook block corresponding to the position of rotating clamping hook, the rear end of rotating clamping hook includes the hook portion for hooking the rear side of hook block, the hook portion of the rotating clamping hook of the utility model can hook the rear side of hook block, realize the effective location of ink box shell front and back direction, stable, and convenient ink box shell disassembly is replaced and maintained.

Description

Technical Field

[0001] This utility model relates to the field of inkjet printer accessories technology, and in particular to an inkjet printer cartridge device that is stable in performance and easy to maintain. Background Technology

[0002] Inkjet printers, widely used in industries such as food, pharmaceuticals, daily chemicals, and electronics, rely heavily on ink cartridges as one of their core consumables. An ink cartridge assembly typically includes a cartridge housing and a cartridge base for securing and connecting the printhead system. In practical use, the cartridge housing needs frequent disassembly and assembly for cartridge replacement and maintenance. Therefore, the connection structure between the housing and the cartridge base must not only possess excellent stability to prevent loosening or detachment due to vibration or impact during operation, but also ensure ease of disassembly and assembly to improve equipment maintenance efficiency.

[0003] In existing technologies, such as the special structure of a coding machine ink cartridge device disclosed in Chinese Utility Model Patent CN 218112130 U, a convex-shaped locking block is set at the bottom of the ink cartridge housing, which, together with the locking groove and limiting plate on the ink cartridge base, achieves initial positioning and fastening. Simultaneously, there are locking grooves on both sides of the ink cartridge housing, and corresponding protective plates and locking protrusions are provided on the ink cartridge base. The locking protrusions are embedded into the locking grooves to further enhance the connection's firmness. While this structure effectively improves the stability of the ink cartridge after installation, it reveals significant drawbacks in practical applications: because the locking protrusions and locking grooves have a rigid interference fit and lack an auxiliary release mechanism, users must apply considerable pulling force to overcome the locking force when disassembling the ink cartridge housing. This operation is laborious and easily damages the housing or base structure, especially in scenarios involving frequent replacements, severely impacting maintenance efficiency and user experience.

[0004] Furthermore, the existing structure lacks an intuitive and convenient unlocking mechanism, failing to achieve "one-click release" or "light force disassembly" functions, and thus cannot meet the demands of modern industrial equipment for modular and quick-change designs. Therefore, there is an urgent need for a new inkjet printer cartridge device structure that can both ensure the secure installation of the cartridge and facilitate quick disassembly and maintenance. Utility Model Content

[0005] This invention proposes a stable and easy-to-maintain ink cartridge device for inkjet printers, which solves the aforementioned problems existing in the use of existing technologies.

[0006] The technical solution of this utility model is implemented as follows: A stable and easy-to-maintain inkjet printer cartridge device includes an inkjet cartridge housing and an inkjet cartridge base. The inkjet cartridge base includes a base plate, a front side plate vertically fixed to the front side of the base plate, and two protective plates fixed to the left and right sides of the base plate and the front side plate, respectively. The front side plate, the base plate, and the protective plates form an L-shaped mounting opening for inserting the front and bottom of the inkjet cartridge housing. A slot is provided in the middle of the base plate, extending to its rear end. The bottom of the inkjet cartridge housing has a convex-shaped locking block for inserting into the slot. A hinge seat is fixedly connected to each of the two protective plates. A rotating hook is rotatably connected to the hinge seat and arranged in a front-to-back configuration. Hook blocks are integrally formed on the left and right sides of the inkjet cartridge housing corresponding to the positions of the rotating hooks. The rear end of the rotating hook includes a hook portion for hooking the rear side of the hook block.

[0007] Preferably, a rotating shaft is fixedly connected to the hinge seat, the middle part of the rotating hook is rotatably connected to the rotating shaft, and a torsion spring is provided on the rotating shaft. The torsion spring includes a first torsion arm that abuts against the front end of the rotating hook and a second torsion arm that abuts against the guard plate.

[0008] Preferably, the front end of the rotating hook has an integrally formed pull plate extending toward the side away from the guard plate.

[0009] Preferably, the front side of the hook block is provided with a first inclined guide surface, and the rear side of the hook part is provided with a second inclined guide surface.

[0010] Preferably, the hook block has hook positioning blocks integrally formed on both the upper and lower sides of its rear end, and the two hook positioning blocks are located on the upper and lower sides of the hook when the hook hooks the rear side of the hook block.

[0011] Preferably, the two hook positioning blocks have a hook guide slope on their opposite sides.

[0012] Preferably, the upper surface of the base plate is provided with limiting abutments on both the left and right sides of the slot. The upper surface of the limiting abutments is inclined downward from front to back. The bottom of the ink cartridge housing is provided with abutments corresponding to the two limiting abutments. The abutments are used to abut against the upper surface of the limiting abutments after the ink cartridge housing is inserted into the L-shaped mounting port.

[0013] In summary, the beneficial effects of this utility model are as follows: 1. By installing hinged seats and rotatable rotating hooks on the side plates of the ink cartridge base, and corresponding hook blocks on both sides of the ink cartridge housing, the hooks of the rotating hooks can engage with the rear of the hook blocks after the ink cartridge housing is inserted into the L-shaped mounting opening, effectively limiting the forward and backward movement of the ink cartridge housing. This structure replaces the traditional interference fit method of rigid locking protrusions and slots, ensuring not only the connection firmness and operational stability after ink cartridge installation, but also providing a releaseable mechanical interface for subsequent disassembly. Users can easily unlock the cartridge by manually turning the rotating hooks, significantly reducing the force required for disassembly, improving maintenance convenience, and solving the problems of "difficult to pull out and easy to damage" in existing technologies.

[0014] 2. A rotating shaft is installed on the hinge seat and a torsion spring is used to ensure that the rotating hook is always in the locked state of pressing the hook block when there is no external force, so as to ensure that it will not be accidentally loosened due to vibration during the operation of the equipment; at the same time, the restoring force provided by the torsion spring allows the hook to automatically return to its position after operation, improving the reliability of use.

[0015] 3. An integrated pull plate is provided at the front end of the rotating hook, which allows the user to apply force to the ink cartridge base in the opposite direction to the ink cartridge housing when pinching the hook.

[0016] 4. Hook positioning blocks are set on the upper and lower sides of the rear end of the hook block. When the hook of the rotating hook catches the rear side of the hook block, the hook is clamped between the two hook positioning blocks, which effectively restricts the vertical movement of the ink cartridge housing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the structure when observed from another perspective; Figure 3 for Figure 1 A schematic diagram of the structure when observed from another perspective; Figure 4 This is a schematic diagram of the structure of this utility model without the ink cartridge housing; Figure 5 This is a schematic diagram of the structure of the ink cartridge housing of this utility model; Figure 6 for Figure 5 A schematic diagram of the structure when observed from another perspective; Figure 7 This is a schematic diagram of the structure of this utility model without the rotating hook.

[0019] In the diagram: 1. Ink cartridge housing; 11. Locking block; 12. Hook block; 121. First inclined guide surface; 122. Hook positioning block; 123. Hook guide inclined surface; 13. Abutment block; 2. Ink cartridge base; 21. Base plate; 211. Slot; 22. Front side plate; 23. Protective plate; 24. L-shaped mounting port; 25. Limiting abutment plate; 3. Hinge seat; 4. Rotating hook; 41. Hook; 42. Second inclined guide surface; 43. Pull plate; 5. Rotating shaft; 6. Torsion spring; 61. First torsion arm; 62. Second torsion arm. Detailed Implementation

[0020] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Example: like Figures 1 to 7 As shown, this utility model discloses a stable and easy-to-maintain inkjet printer cartridge device, including a cartridge housing 1 and a cartridge base 2. The cartridge base 2 includes a base plate 21, a front side plate 22 vertically fixed to the front side of the base plate 21, and two protective plates 23 respectively fixed to the left and right sides of the base plate 21 and the front side plate 22. The front side plate 22, the base plate 21, and the protective plates 23 form an L-shaped mounting opening 24 for the front and bottom of the cartridge housing 1 to be inserted. A slot 211 penetrating through its rear end is provided in the middle of the base plate 21. The bottom of the cartridge housing 1 is provided with a convex-shaped locking block 11. When the cartridge housing 1 is pushed from back to front into the L-shaped mounting opening 24, the locking block 11 can be smoothly inserted into the slot 211 to achieve initial positioning and basic vertical positioning.

[0022] To further enhance the connection's robustness and address the difficulty of disassembling traditional structures, this design features hinge seats 3 fixedly connected to both protective plates 23, with rotating hooks 4 arranged front-to-back rotatably connected to the hinge seats 3. Specifically, a rotating shaft 5 is fixedly connected to the hinge seat 3, and the middle of the rotating hook 4 is rotatably connected to the rotating shaft 5. A torsion spring 6 is mounted on the rotating shaft 5, comprising a first torsion arm 61 abutting against the front end of the rotating hook 4 and a second torsion arm 62 abutting against the protective plate 23. This ensures that the rear end of the rotating hook 4 always tends to press downwards in its natural state. Correspondingly, hook blocks 12 are integrally formed on both the left and right sides of the ink cartridge housing 1 at positions corresponding to the rotating hook 4, and the rear end of the rotating hook 4 includes a hook portion 41 for hooking the rear side of the hook block 12. When the ink cartridge housing 1 is fully pushed into the ink cartridge base 2, the hook 41 at the rear end of the rotating hook 4 is located just behind the hook block 12, and automatically hooks the hook block 12 under the action of the torsion spring 6, thereby forming a reliable front-to-back locking of the ink cartridge housing 1 and preventing it from accidentally coming off due to vibration or impact during equipment operation.

[0023] To facilitate user operation, the front end of the rotating hook 4 is integrally formed with a pull plate 43 extending away from the protective plate 23. This pull plate 43 allows the user to apply force to the ink cartridge base 2 in the opposite direction to the ink cartridge housing 1 when pinching the hook.

[0024] When it is necessary to disassemble the ink cartridge housing 1, the user can use the thumb of one hand to pinch the front end of one rotating hook 4 and use one or more fingers of the other hand to pinch the front end of the other rotating hook 4, so that both rotating hooks 4 rotate around the pivot 5, causing the hook part 41 at the rear end of the rotating hook 4 to be lifted and disengaged from the back of the hook block 12; at this time, the other hand can easily pull the ink cartridge housing 1 out from front to back. The whole process does not require the use of tools or the application of excessive pulling force, which significantly improves maintenance efficiency and user experience.

[0025] It should also be noted that, in practice, this solution is applicable only to cases where a normal adult can grip and rotate the two side hooks 4. It is not applicable if the size of the ink cartridge housing 1 and the ink cartridge base 2 is too large.

[0026] To ensure smooth locking during cartridge housing 1 insertion, a first inclined guide surface 121 is provided on the front side of hook block 12, and a second inclined guide surface 42 is provided on the rear side of hook part 41. Thus, when the cartridge housing 1 is pushed forward without pinching or rotating the hook 4, the two inclined guide surfaces contact each other and slide to guide the hook part 41 smoothly past the front end of hook block 12 and automatically fall into the locking position, achieving a "push-in lock" self-locking function.

[0027] Additionally, hook positioning blocks 122 can be integrally formed on both the upper and lower sides of the rear end of the hook block 12. When the hook 41 hooks the rear side of the hook block 12, the two hook positioning blocks 122 are located on the upper and lower sides of the hook 41, respectively. When the hook 41 of the rotating hook 4 hooks the rear side of the hook block 12, the hook 41 is precisely clamped between the two hook positioning blocks 122, thereby effectively preventing the ink cartridge housing 1 from shaking in the vertical direction. To further improve assembly tolerance, a hook guide slope 123 is also provided on the opposite side of the two hook positioning blocks 122, which can guide the hook 41 to slide smoothly into the gap between the two positioning blocks during installation, avoiding jamming due to minor assembly deviations.

[0028] To further enhance the vertical stability of the ink cartridge housing 1, the upper surface of the base plate 21 is provided with limiting plates 25 on both the left and right sides of the slot 211. The upper surface of the limiting plates 25 slopes downward from front to back. Corresponding to the two limiting plates 25, the bottom of the ink cartridge housing 1 is provided with abutment blocks 13. The abutment blocks 13 are used to hold the ink cartridge housing 1 against the upper surface of the limiting plates 25 after it is inserted into the L-shaped mounting opening 24. When the ink cartridge housing 1 is pushed into the L-shaped mounting opening 24, the abutment blocks 13 are initially located at the rear end of the limiting plates 25, and as it continues to be pushed in, they eventually fit tightly against the upper surface of the limiting plates 25. This structure can generate pre-tightening force after installation, eliminating vertical gaps and significantly improving the overall rigidity and vibration resistance of the ink cartridge installation.

[0029] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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 limiting the scope of protection of this utility model.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. A stable and easy-to-maintain inkjet printer cartridge device, comprising a cartridge housing and a cartridge base, the cartridge base comprising a base plate, a front side plate vertically fixed to the front side of the base plate, and two protective plates respectively fixed to the left and right sides of the base plate and the front side plate, the front side plate, the base plate, and the protective plates forming an L-shaped mounting opening for inserting the front and bottom of the cartridge housing, a slot extending through the rear end of the base plate being provided in the middle, and a locking block with a convex cross-section being provided at the bottom of the cartridge housing, the locking block being inserted into the slot, characterized in that: Both of the protective plates are fixedly connected to hinge seats, and rotating hooks arranged in a front-to-back manner are rotatably connected to the hinge seats. Hook blocks are integrally formed on the left and right sides of the ink cartridge housing corresponding to the positions of the rotating hooks. The rear end of the rotating hook includes a hook part for hooking the rear side of the hook block.

2. The inkjet printer cartridge device with stable performance and easy maintenance according to claim 1, characterized in that: A rotating shaft is fixedly connected to the hinge seat, and the middle part of the rotating hook is rotatably connected to the rotating shaft. A torsion spring is provided on the rotating shaft, and the torsion spring includes a first torsion arm that abuts against the front end of the rotating hook and a second torsion arm that abuts against the guard plate.

3. The inkjet printer cartridge device with stable performance and easy maintenance according to claim 2, characterized in that: The rotating hook has an integrally formed pull plate at its front end that extends toward the side away from the guard plate.

4. A stable and easy-to-maintain inkjet printer cartridge device according to claim 1 or 2, characterized in that: The hook block has a first inclined guide surface on its front side, and the hook part has a second inclined guide surface on its rear side.

5. A stable and easy-to-maintain inkjet printer cartridge device according to claim 1 or 2, characterized in that: The hook block has hook positioning blocks integrally formed on both the upper and lower sides of its rear end. When the hook hooks the rear side of the hook block, the two hook positioning blocks are located on the upper and lower sides of the hook respectively.

6. The ink cartridge device for a stable and easy-to-maintain inkjet printer according to claim 5, characterized in that: The two hook positioning blocks have hook guide slopes on their opposite sides.

7. The inkjet printer cartridge device with stable performance and easy maintenance according to claim 1, characterized in that: The upper surface of the base plate is provided with limiting abutments on both the left and right sides of the slot. The upper surface of the limiting abutments is inclined downward from front to back. The bottom of the ink cartridge housing is provided with abutments corresponding to the two limiting abutments. The abutments are used to abut against the upper surface of the limiting abutments after the ink cartridge housing is inserted into the L-shaped mounting port.

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