Ink box

Abstract

The utility model discloses an ink box which comprises a box body and a leakage-proof structure. The box body is provided with an ink cavity, an air inlet channel and an air inlet hole, one end of the air inlet channel communicates with the ink cavity, and the other end of the air inlet channel communicates with the air inlet hole. The leakage-proof structure is arranged in the box body and provided with a leakage-proof cavity set, the leakage-proof cavity set comprises a first leakage-proof cavity and a second leakage-proof cavity, a first leakage-proof column is arranged in the first leakage-proof cavity, one end of the first leakage-proof column is connected to the cavity wall of the first leakage-proof cavity, and gaps are formed between the other end of the first leakage-proof column and the cavity wall of the first leakage-proof cavity and between the peripheral face of the first leakage-proof column and the cavity wall of the first leakage-proof cavity. The first leakage-proof column is provided with a hollow channel, the two ends of the hollow channel communicate with the first leakage-proof cavity and the second leakage-proof cavity correspondingly, the first leakage-proof cavity, the hollow channel and the second leakage-proof cavity communicate in sequence to form a leakage-proof channel, and the air inlet hole communicates with the air inlet channel through the leakage-proof channel. According to the ink box, the leakage-proof effect of the air inlet channel can be improved.

Description

Technical Field

[0001] This utility model relates to printing consumables, and in particular to an ink cartridge. Background Technology

[0002] Existing ink cartridges typically incorporate an air intake channel connected to the ink chamber to balance air pressure. This channel, via an air inlet, connects to the outside environment. After ink is consumed, external air enters the ink chamber through the air intake channel, thus balancing the air pressure and ensuring a continuous output of ink. However, because the air intake channel is open to the outside, there is a possibility of ink leakage during transport. Current ink cartridges only have simple leak-proof structures in the air intake channel, and their leak-proof effectiveness is still inadequate and cannot meet higher requirements. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an ink cartridge that can improve the leak-proof effect of the air intake channel.

[0004] An ink cartridge according to an embodiment of the present invention includes: a cartridge body having an ink cavity, an air inlet channel, and an air inlet hole, one end of the air inlet channel communicating with the ink cavity and the other end of the air inlet channel communicating with the air inlet hole; a leak-proof structure disposed in the cartridge body, the leak-proof structure having a leak-proof cavity group, the leak-proof cavity group including a first leak-proof cavity and a second leak-proof cavity, a first leak-proof column disposed in the first leak-proof cavity, one end of the first leak-proof column being connected to the cavity wall of the first leak-proof cavity, the other end and the circumferential surface of the first leak-proof column being spaced apart from the cavity wall of the first leak-proof cavity, the first leak-proof column having a hollow channel, the two ends of the hollow channel being respectively communicating with the first leak-proof cavity and the second leak-proof cavity, the first leak-proof cavity, the hollow channel, and the second leak-proof cavity being sequentially connected to form a leak-proof channel, and the air inlet hole communicating with the air inlet channel through the leak-proof channel.

[0005] An ink cartridge according to an embodiment of the present invention has at least the following beneficial effects: The above-described structure, by providing a leak-proof structure, includes a leak-proof cavity group comprising a first leak-proof cavity and a second leak-proof cavity. The first and second leak-proof cavities are connected by a hollow channel in a first leak-proof column, forming a leak-proof channel. The air inlet is connected to the air inlet channel through this leak-proof channel. If ink enters the air inlet channel, it needs to pass through the first leak-proof cavity, the second leak-proof cavity, and the first leak-proof column to reach the air inlet. This path is tortuous, and the ink is easily trapped by the first leak-proof cavity, the second leak-proof cavity, or the first leak-proof column, making it difficult for the ink to seep out to the air inlet, thereby effectively reducing the possibility of ink flowing out to the air inlet.

[0006] According to some embodiments of the present invention, the box body is provided with a third leak-proof cavity, and a second leak-proof column is provided in the third leak-proof cavity. One end of the second leak-proof column is connected to the cavity wall of the third leak-proof cavity, and the other end and the circumferential surface of the second leak-proof column are spaced apart from the cavity wall of the third leak-proof cavity. The air inlet is a hollow hole provided in the second leak-proof column, and the air inlet is connected to the leak-proof channel through the third leak-proof cavity.

[0007] According to some embodiments of this utility model, the leak-proof cavity group is provided with at least two groups, and the leak-proof channels formed by each group of the leak-proof cavity group are connected end to end to form a multi-level leak-proof channel, and the air inlet is connected to the air inlet channel through the multi-level leak-proof channel.

[0008] According to some embodiments of this utility model, the leak-proof cavity groups are arranged horizontally side by side. In a single leak-proof cavity group, the first leak-proof cavity and the second leak-proof cavity are arranged vertically. Two horizontally adjacent leak-proof cavity groups are defined as group A and group B. The vertical arrangement of the first leak-proof cavity and the second leak-proof cavity in group A and group B is opposite. The connection path of the multi-level leak-proof channel is path one or path two: path one is: from the second leak-proof cavity of group A to the first leak-proof cavity of group A, then to the second leak-proof cavity of group B, and finally to the first leak-proof cavity of group B; path two is: from the first leak-proof cavity of group A to the second leak-proof cavity of group A, then to the first leak-proof cavity of group B, and finally to the second leak-proof cavity of group B.

[0009] According to some embodiments of the present invention, the leak-proof structure is disposed on the lower side of the air inlet.

[0010] According to some embodiments of the present invention, the box body is provided with a welding film connecting protrusion. The welding film connecting protrusion is annular and surrounds the air inlet side opening of the air inlet. The welding film connecting protrusion is connected with a tear film protrusion. The tear film protrusion is strip-shaped and one end is connected to the outer periphery of the welding film connecting protrusion. A sealing film is welded onto the welding film connecting protrusion and the tear film protrusion.

[0011] According to some embodiments of the present invention, at least two tear-off strips are arranged side by side at intervals along the front-to-back direction, the tear-off strips extend vertically, and the lower end of the tear-off strips is connected to the outer periphery of the welding film connecting strip.

[0012] According to some embodiments of this utility model, the box body is further provided with an ink outlet hole and an ink outlet cavity, the ink outlet hole is connected to the lower middle part of the ink outlet cavity, and the upper end of the ink outlet cavity is connected to the ink cavity.

[0013] According to some embodiments of this utility model, the ink outlet cavity is connected to the ink cavity through a vertical channel and a connecting channel disposed in the cartridge body. The vertical channel extends vertically and is disposed on one side of the ink outlet cavity in the horizontal direction. The upper end of the vertical channel is connected to the upper end of the ink outlet cavity, and the lower end of the vertical channel is connected to the connecting channel. The connecting channel is connected to the ink cavity.

[0014] According to some embodiments of this utility model, the connecting channel is a maze-structured channel.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0018] Figure 2 This is one of the perspective views of the main shell of this utility model embodiment;

[0019] Figure 3 for Figure 2 A partially enlarged schematic diagram of the structure shown;

[0020] Figure 4 This is a second perspective view of the main shell of this utility model embodiment;

[0021] Figure 5 for Figure 4 A partially enlarged schematic diagram of the structure shown.

[0022] Figure label:

[0023] Box body 100, main shell 101, face cover 102, sealing film 103, ink chamber 110, air inlet channel 120, air inlet hole 130, third leak-proof chamber 140, second leak-proof column 150, welding film connecting protrusion 161, film tearing protrusion 162, ink outlet hole 170, ink outlet chamber 180, vertical channel 191, connecting channel 192;

[0024] Leak-proof structure 200, first leak-proof cavity 210, second leak-proof cavity 220, first leak-proof column 230, hollow channel 231. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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 limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Reference Figures 1 to 5 An ink cartridge includes a cartridge body 100 and a leak-proof structure 200. The cartridge body 100 is provided with an ink chamber 110, an air inlet channel 120 and an air inlet 130. One end of the air inlet channel 120 is connected to the ink chamber 110, and the other end of the air inlet channel 120 is connected to the air inlet 130. A leak-proof structure 200 is disposed in the housing 100. The leak-proof structure 200 is provided with a leak-proof cavity group, which includes a first leak-proof cavity 210 and a second leak-proof cavity 220. A first leak-proof column 230 is disposed in the first leak-proof cavity 210. One end of the first leak-proof column 230 is connected to the cavity wall of the first leak-proof cavity 210. The other end and the circumference of the first leak-proof column 230 are spaced apart from the cavity wall of the first leak-proof cavity 210. The first leak-proof column 230 is provided with a hollow channel 231. The two ends of the hollow channel 231 are respectively connected to the first leak-proof cavity 210 and the second leak-proof cavity 220. The first leak-proof cavity 210, the hollow channel 231 and the second leak-proof cavity 220 are sequentially connected to form a leak-proof channel. The air inlet 130 is connected to the air inlet channel 120 through the leak-proof channel.

[0030] The above-described structure, by setting a leak-proof structure 200, includes a leak-proof cavity group, which includes a first leak-proof cavity 210 and a second leak-proof cavity 220. The first leak-proof cavity 210 and the second leak-proof cavity 220 are connected by a hollow channel 231 of a first leak-proof column 230, forming a leak-proof channel. The air inlet 130 is connected to the air inlet channel 120 through this leak-proof channel. If ink enters the air inlet channel 120, the ink needs to pass through the first leak-proof cavity 210, the second leak-proof cavity 220, and the first leak-proof column 230 to reach the air inlet 130. The path is tortuous, and the ink is easily intercepted by the first leak-proof cavity 210, the second leak-proof cavity 220, or the first leak-proof column 230, making it difficult for the ink to seep out to the air inlet 130, thereby effectively reducing the possibility of ink flowing out to the air inlet 130.

[0031] In this embodiment, the housing 100 is provided with a third leak-proof cavity 140, and a second leak-proof column 150 is provided in the third leak-proof cavity 140. One end of the second leak-proof column 150 is connected to the cavity wall of the third leak-proof cavity 140, and the other end and the circumferential surface of the second leak-proof column 150 are spaced apart from the cavity wall of the third leak-proof cavity 140. The air inlet 130 is a hollow hole provided in the second leak-proof column 150, and the air inlet 130 is connected to the leak-proof channel through the third leak-proof cavity 140. With the above structure, by adding the third leak-proof cavity 140 and the second leak-proof column 150, and by making the air inlet 130 a hollow hole in the second leak-proof column 150, ink is difficult to enter the interior of the second leak-proof column 150, thereby further improving the leak-proof effect.

[0032] In this embodiment, two sets of leak-proof chambers are provided. The leak-proof channels formed by each set of leak-proof chambers are connected end to end to form a multi-level leak-proof channel. The air inlet 130 is connected to the air inlet channel 120 through the multi-level leak-proof channel. By adopting the above structure, a more complex and multi-level channel can be formed, thereby further improving the leak-proof effect.

[0033] It is conceivable that in some embodiments, the leak-proof cavity group may be provided in only one or more than two groups, which can be configured according to the actual situation.

[0034] In this embodiment, the leak-proof chamber groups are arranged horizontally side by side. In a single leak-proof chamber group, the first leak-proof chamber 210 and the second leak-proof chamber 220 are arranged vertically. Two horizontally adjacent leak-proof chamber groups are defined as group A and group B. The vertical arrangement of the first leak-proof chamber 210 and the second leak-proof chamber 220 in groups A and B is opposite. The connection path of the multi-level leak-proof channel is path one, which is: from the second leak-proof chamber 220 of group A to the first leak-proof chamber 210 of group A, then to the second leak-proof chamber 220 of group B, and finally to the first leak-proof chamber 210 of group B. In some embodiments, the connection path of the multi-level leak-proof channel can also be path two, which is: from the first leak-proof chamber 210 of group A to the second leak-proof chamber 220 of group A, then to the first leak-proof chamber 210 of group B, and finally to the second leak-proof chamber 220 of group B. With the above structure, a more complex flipping channel is formed. If ink is to pass through the multi-level leak-proof channel, it needs to undergo repeated switching between up and down positions, thereby further increasing the difficulty of leakage.

[0035] In this embodiment, the leak-proof structure 200 is located below the air inlet 130, making it more difficult for ink to rise into the air inlet 130. The leak-proof structure 200 as a whole effectively traps the ink.

[0036] In this embodiment, the cartridge body 100 is provided with a welding film connecting protrusion 161. The welding film connecting protrusion 161 is annular and surrounds the air inlet side opening of the air inlet 130. A tear-off protrusion 162 is connected to the welding film connecting protrusion 161. The tear-off protrusion 162 is strip-shaped and one end is connected to the outer periphery of the welding film connecting protrusion 161. A sealing film is welded onto the welding film connecting protrusion 161 and the tear-off protrusion 162. The sealing film is used to seal the air inlet 130 before the ink cartridge is used. When the ink cartridge is used, the sealing film is torn off. Currently, the sealing film is usually a two-layer composite film. In actual use, it often happens that only one layer is torn off while the air inlet 130 remains sealed by the other layer of sealing film, resulting in no air intake. By using the structure of the tear strip 162, when the sealing film is torn open, the tear strip 162 applies a different pulling force to the sealing film than the welding film connecting strip 161. The sealing film is additionally torn by the tear strip 162, increasing the probability that the sealing film is torn or at least can be torn open, thus avoiding the problem of the ink cartridge not being able to take in air when using the ink cartridge.

[0037] In this embodiment, two tear-off strips 162 are arranged side-by-side at intervals along the front-to-back direction. The tear-off strips 162 extend vertically, and their lower ends are connected to the outer periphery of the welding film connecting strip 161. This structure facilitates the opening of the air inlet 130 when the sealing film is torn open forward or backward. In some embodiments, one or more tear-off strips 162 may be provided, depending on the specific circumstances.

[0038] In this embodiment, the cartridge body 100 is further provided with an ink outlet 170 and an ink outlet cavity 180. The ink outlet 170 is connected to the lower middle part of the ink outlet cavity 180, and the upper end of the ink outlet cavity 180 is connected to the ink chamber 110. With the above structure, on the one hand, after the ink cartridge is filled with ink, the ink outlet cavity 180 serves as a buffer cavity for ink output, which can keep the ink cartridge full during use and ensure ink output stability; on the other hand, even if air bubbles enter the ink outlet cavity 180, the air bubbles can float at the upper end of the ink outlet cavity 180 and will not affect the ink output, thus ensuring the printing effect of the printing device.

[0039] In this embodiment, the ink outlet chamber 180 is connected to the ink chamber 110 via a vertical channel 191 and a connecting channel 192 disposed in the housing 100. The vertical channel 191 extends vertically and is located on one side of the ink outlet chamber 180 in the horizontal direction. The upper end of the vertical channel 191 is connected to the upper end of the ink outlet chamber 180, and the lower end of the vertical channel 191 is connected to the connecting channel 192. The connecting channel 192 is connected to the ink chamber 110. With the above structure, the ink in the ink outlet chamber 180 is less likely to flow back.

[0040] In this embodiment, the connecting channel 192 is a maze-structured channel, which better prevents backflow.

[0041] In the embodiment shown in the accompanying drawings, the housing 100 includes a main shell 101, a cover 102, and a sealing film 103. A leak-proof structure 200 is integrally formed with the main shell 101. An ink chamber 110 and an air inlet channel 120 are enclosed by the main shell 101 and the cover 102. A first leak-proof chamber 210 and a second leak-proof chamber 220 are enclosed by the main shell 101 and the sealing film 103, or by the main shell 101 and the cover 102. A third leak-proof chamber 140 is enclosed by the main shell 101 and the cover 102. An air inlet 130, a welding film connecting protrusion 161, and a film tearing protrusion 162 are provided on the main shell 101. An ink outlet chamber 180, a vertical channel 191, and a connecting channel 192 are enclosed by the main shell 101 and the cover 102. An ink outlet 170 is provided on the main shell 101.

[0042] In this embodiment, the main shell 101 and the cover 102 are arranged on the left and right sides, and the first anti-leakage post 230 and the second anti-leakage post 150 are arranged on the main shell 101 in the left and right direction, respectively facing left and right, which can facilitate manufacturing.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An ink cartridge, characterized in that, include: The box body (100) is provided with an ink chamber (110), an air inlet channel (120) and an air inlet hole (130). One end of the air inlet channel (120) is connected to the ink chamber (110), and the other end of the air inlet channel (120) is connected to the air inlet hole (130). A leak-proof structure (200) is disposed in the housing (100). The leak-proof structure (200) is provided with a leak-proof cavity group, which includes a first leak-proof cavity (210) and a second leak-proof cavity (220). A first leak-proof column (230) is disposed in the first leak-proof cavity (210). One end of the first leak-proof column (230) is connected to the cavity wall of the first leak-proof cavity (210), and the other end and the circumference of the first leak-proof column (230) are connected to the cavity wall of the first leak-proof cavity (210). The cavity walls of the 0) are spaced apart. The first leak-proof column (230) is provided with a hollow channel (231). The two ends of the hollow channel (231) are respectively connected to the first leak-proof cavity (210) and the second leak-proof cavity (220). The first leak-proof cavity (210), the hollow channel (231) and the second leak-proof cavity (220) are connected in sequence to form a leak-proof channel. The air inlet (130) is connected to the air inlet channel (120) through the leak-proof channel.

2. The ink cartridge according to claim 1, characterized in that: The box body (100) is provided with a third leak-proof cavity (140), and a second leak-proof column (150) is provided in the third leak-proof cavity (140). One end of the second leak-proof column (150) is connected to the cavity wall of the third leak-proof cavity (140), and the other end and the circumferential surface of the second leak-proof column (150) are spaced from the cavity wall of the third leak-proof cavity (140). The air inlet (130) is a hollow hole provided in the second leak-proof column (150), and the air inlet (130) is connected to the leak-proof channel through the third leak-proof cavity (140).

3. The ink cartridge according to claim 1, characterized in that: The leak-proof cavity group is provided with at least two groups, and the leak-proof channels formed by each group of the leak-proof cavity group are connected end to end to form a multi-level leak-proof channel. The air inlet (130) is connected to the air inlet channel (120) through the multi-level leak-proof channel.

4. The ink cartridge according to claim 3, characterized in that: The leak-proof cavity groups are arranged horizontally side by side. In a single leak-proof cavity group, the first leak-proof cavity (210) and the second leak-proof cavity (220) are arranged vertically. Two horizontally adjacent leak-proof cavity groups are defined as group A and group B. The vertical arrangement of the first leak-proof cavity (210) and the second leak-proof cavity (220) in group A and group B is opposite. The connection path of the multi-level leak-proof channel is path one or path two. The first path is: from the second leak-proof cavity (220) of group A to the first leak-proof cavity (210) of group A, then to the second leak-proof cavity (220) of group B, and finally to the first leak-proof cavity (210) of group B; The second path is: from the first leak-proof cavity (210) of group A to the second leak-proof cavity (220) of group A, then to the first leak-proof cavity (210) of group B, and finally to the second leak-proof cavity (220) of group B.

5. The ink cartridge according to claim 1, characterized in that: The leak-proof structure (200) is located on the lower side of the air inlet (130).

6. The ink cartridge according to claim 1, characterized in that: The box body (100) is provided with a film connecting protrusion (161). The film connecting protrusion (161) is annular and surrounds the air inlet side opening of the air inlet (130). The film connecting protrusion (161) is connected to a film tearing protrusion (162). The film tearing protrusion (162) is strip-shaped and one end is connected to the outer periphery of the film connecting protrusion (161). Sealing film is welded onto the film connecting protrusion (161) and the film tearing protrusion (162).

7. The ink cartridge according to claim 6, characterized in that: At least two tear-off strips (162) are arranged side by side at intervals along the front-to-back direction. The tear-off strips (162) extend vertically, and the lower end of the tear-off strips (162) is connected to the outer periphery of the welding film connecting strip (161).

8. The ink cartridge according to claim 1, characterized in that: The box body (100) is also provided with an ink outlet hole (170) and an ink outlet cavity (180). The ink outlet hole (170) is connected to the lower middle part of the ink outlet cavity (180), and the upper end of the ink outlet cavity (180) is connected to the ink cavity (110).

9. The ink cartridge according to claim 8, characterized in that: The ink outlet cavity (180) is connected to the ink cavity (110) through a vertical channel (191) and a connecting channel (192) disposed in the housing (100). The vertical channel (191) extends vertically and is disposed on one side of the ink outlet cavity (180) in the horizontal direction. The upper end of the vertical channel (191) is connected to the upper end of the ink outlet cavity (180), and the lower end of the vertical channel (191) is connected to the connecting channel (192). The connecting channel (192) is connected to the ink cavity (110).

10. The ink cartridge according to claim 9, characterized in that: The connecting channel (192) is a maze-structured channel.

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