Ink box capable of reducing air pressure impact

Abstract

The utility model discloses an ink box capable of reducing air pressure impact. The ink box comprises a box body and an ink leakage prevention piece. The box body is provided with an air cavity, an air inlet hole, an ink cavity, an ink outlet hole and an air guide hole, the air inlet hole is communicated with the air cavity, the ink outlet hole is communicated with the ink cavity, the air cavity and the ink cavity are arranged side by side in a left-right mode and are separated through a vertical partition plate, the air guide hole is formed in the lower portion of the vertical partition plate and penetrates through the vertical partition plate, and the air cavity and the ink cavity are communicated through the air guide hole. The ink leakage prevention piece is arranged in the air cavity and covers the end, close to the air cavity, of the air guide hole in a sealing mode, air can pass through the ink leakage prevention piece, and ink in the ink cavity can be limited from entering the position, outside the ink leakage prevention piece, of the air cavity. A default concave part is formed in the plate face, close to one side of the ink cavity, of the vertical partition plate, and the default concave part is arranged on the peripheral side of the air guide hole and extends and penetrates to the hole wall of the upper portion of the air guide hole. According to the ink box, air pressure impact on printing equipment can be reduced.

Description

Technical Field

[0001] The utility model relates to consumables for printing equipment, in particular to an ink cartridge capable of reducing air pressure impact. Background Art

[0002] An existing ink cartridge includes a box body and a sponge. The box body is provided with an air cavity, an air inlet, an ink cavity, an ink outlet and an air guide hole. The air inlet is connected to the air cavity. The air cavity and the ink cavity are separated by a vertical partition plate. The ink outlet is connected to the ink cavity. The air guide hole is arranged at the lower part of the vertical partition plate and penetrates the vertical partition plate. The air cavity and the ink cavity are connected through the air guide hole. The sponge is arranged in the air cavity and sealed at one end of the air guide hole close to the air cavity. The sponge plays a role in limiting the leakage of water in the ink cavity to the air cavity. In the process of the printing device extracting ink through the ink outlet hole, the ink cavity forms a negative pressure, and the external gas enters the air guide hole through the air inlet, the air cavity and the sponge. After the gas comes out of the air guide hole, it enters the ink cavity to balance the air pressure, thereby ensuring that the ink can be continuously output to the printing device. In the process of the gas entering the ink cavity from the air guide hole, the gas will form bubbles and float up from the ink. When the bubble bursts, air pressure fluctuations will occur, which will cause impacts on the printing device and affect normal printing work. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an ink cartridge that reduces air pressure shock.

[0004] According to the embodiment of the utility model, the ink cartridge for reducing air pressure shock comprises: a cartridge body, which is provided with an air cavity, an air inlet hole, an ink cavity, an ink outlet hole and an air guide hole, the air inlet hole being connected with the air cavity, the ink outlet hole being connected with the ink cavity, the air cavity and the ink cavity being arranged side by side on the left and right and separated by a vertical partition plate, the air guide hole being opened at the lower part of the vertical partition plate and penetrating the vertical partition plate, the air cavity and the ink cavity being connected through the air guide hole; an ink leakage prevention part being arranged in the air cavity and covering an end of the air guide hole close to the air cavity, the ink leakage prevention part can allow air to pass through and can limit the ink in the ink cavity from entering the position of the air cavity outside the ink leakage prevention part; wherein, the vertical partition plate is provided with a default recess on the plate surface close to one side of the ink cavity, the default recess is arranged on the peripheral side of the air guide hole, and the default recess extends through the hole wall at the upper part of the air guide hole.

[0005] The ink cartridge for reducing air pressure shock according to the embodiment of the utility model has at least the following beneficial effects: the ink cartridge mentioned above, on the one hand, the setting of the default recess makes the air guide hole partially "defective", and the air guide hole has a small portion of the complete circumference, so that the actual length and actual volume of the air guide hole are small, so that the volume of bubbles formed and merged in the air guide hole is small; on the other hand, when the bubble leaves the air guide hole, the bubble will leave against the upper hole wall of the air guide hole under the action of buoyancy. Since the default recess penetrates the hole wall of the upper part of the air guide hole, the bubble can leave quickly in advance with the help of the default recess, and further avoid the formation and synthesis of excessively large bubbles in the air guide hole. Through the above structure, the bubble input from the air guide hole to the ink cavity is smaller, so the air pressure shock generated when the bubble bursts is also small, and the printing device works more smoothly; in addition, by setting the default recess to reduce the volume of the air guide hole, the change to the structure of the original ink cartridge is small, which is convenient for production and manufacturing.

[0006] According to some embodiments of the present invention, the default recess is a strip-shaped recess extending linearly upward.

[0007] According to some embodiments of the present invention, with the plate surface of the vertical partition plate close to the ink chamber as a reference, the depth of the default recess gradually decreases in a direction away from the air guide hole.

[0008] According to some embodiments of the present invention, an angle β formed between an extension axis of the default recess and a hole axis of the air guide hole close to a side of the ink chamber is an acute angle.

[0009] According to some embodiments of the present invention, the groove surface of the default recess is a U-shape with a smooth transition.

[0010] According to some embodiments of the utility model, the diameter D of the air guide hole ranges from 0.8 mm to 2.1 mm, the default recess enables the vertical partition plate to form a minimum wall thickness T at the air guide hole, the minimum wall thickness T ranges from 0.4 mm to 1.1 mm, and the width W of the default recess ranges from 0.8 mm to 2.1 mm.

[0011] According to some embodiments of the present invention, a width W of the default recess is equal to a width H of an end of the air guide hole close to the ink chamber.

[0012] According to some embodiments of the present invention, the diameter D of the air guide hole ranges from 1.3 mm to 1.8 mm, the minimum wall thickness T ranges from 0.5 mm to 0.9 mm, and the width W of the default recess ranges from 1.3 mm to 2.0 mm.

[0013] According to some embodiments of the utility model, the default recess forms a local default in the air guide hole close to an end opening of the ink chamber, and a chamfer is provided on the portion where the default is not formed.

[0014] According to some embodiments of the utility model, the ink leakage prevention member is a sponge block; the shape of the lower end of the air cavity is adapted to the shape of the ink leakage prevention member, and the sponge block is accommodated and fixed at the lower end of the air cavity.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A cross-sectional view of the structure shown in the AA direction;

[0019] Figure 3 A partial cross-sectional view of an embodiment of the utility model;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of K;

[0021] Figure 5 for Figure 1 A cross-sectional view of the structure shown in the BB direction;

[0022] Figure 6 for Figure 2 An enlarged schematic diagram of P;

[0023] Figure 7 for Figure 5 An enlarged schematic diagram of location N.

[0024] Reference numerals:

[0025] Box body 100, air cavity 110, air inlet hole 120, ink cavity 130, ink outlet hole 140, air guide hole 150, vertical partition plate 160, default recess 170, chamfer 180, main shell 101, cover 102;

[0026] Ink leakage prevention member 200. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] Reference Figures 1 to 7 , an ink cartridge for reducing air pressure shock, comprising a cartridge body 100 and an ink leakage prevention member 200. The cartridge body 100 is provided with an air cavity 110, an air inlet hole 120, an ink cavity 130, an ink outlet hole 140 and an air guide hole 150, the air inlet hole 120 is communicated with the air cavity 110, the ink outlet hole 140 is communicated with the ink cavity 130, the air cavity 110 and the ink cavity 130 are arranged side by side on the left and right and separated by a vertical partition plate 160, the air guide hole 150 is opened at the lower part of the vertical partition plate 160 and penetrates the vertical partition plate 160, and the air cavity 110 and the ink cavity 130 are communicated through the air guide hole 150. The ink leakage prevention member 200 is arranged in the air cavity 110 and covers one end of the air guide hole 150 close to the air cavity 110, the ink leakage prevention member 200 can allow air to pass through and can limit the ink in the ink cavity 130 from entering the position of the air cavity 110 outside the ink leakage prevention member 200. Among them, the vertical partition plate 160 has a default recess 170 on the plate surface close to the ink chamber 130 , and the default recess 170 is arranged on the peripheral side of the air guide hole 150 , and the default recess 170 extends through the hole wall at the upper part of the air guide hole 150 .

[0032] In the ink cartridge described above, on one hand, the setting of the default recess 170 makes the air guide hole 150 partially "defective", and the air guide hole 150 has a small portion with a complete circumference, so that the actual length and actual volume of the air guide hole 150 are small, so that the volume of the bubbles formed and merged in the air guide hole 150 is small; on the other hand, when the bubbles leave the air guide hole 150, the bubbles will leave against the upper hole wall of the air guide hole 150 under the action of buoyancy. Since the default recess 170 penetrates the hole wall of the upper part of the air guide hole 150, the bubbles can leave quickly in advance with the help of the default recess 170, and further avoid the formation and synthesis of overly large bubbles in the air guide hole 150. Through the above structure, the bubbles input from the air guide hole 150 to the ink chamber 130 are smaller, so the air pressure shock generated when the bubbles burst is also small, and the printing device works more smoothly; in addition, by setting the default recess 170 to reduce the volume of the air guide hole 150, the change to the structure of the original ink cartridge is small, which is convenient for production and manufacturing.

[0033] In the embodiment, the default recess 170 is a strip-shaped groove extending linearly upward, so that the bubbles can be better guided to the ink chamber 130 quickly and stably.

[0034] In the embodiment, with the plate surface of the vertical partition plate 160 close to the ink chamber 130 as a reference, the depth of the default recess 170 gradually decreases in the direction away from the air guide hole 150. With the above structure, on the one hand, the default recess 170 can be cut into a deeper position of the air guide hole 150, and on the other hand, the bubbles can be quickly guided away from the default recess 170.

[0035] In the embodiments, specific reference is made to Figure 6 The angle β formed between the extension axis of the default recess 170 and the hole axis of the air guide hole 150, which is close to the ink chamber 130, is an acute angle, so that the aforementioned depth change can be achieved with a simple structure, and the structure of the above-mentioned default recess 170 is also convenient for cutting or molding through a mold.

[0036] In the embodiment, the groove surface of the default recess 170 is a smoothly transitioned U-shape, so that the bubbles can be guided smoothly.

[0037] In the embodiment, the diameter D of the air guide hole 150 is in the range of 0.8 mm to 2.1 mm, and the default recess 170 allows the vertical partition plate 160 to form a minimum wall thickness T at the air guide hole 150, and the minimum wall thickness T is in the range of 0.4 mm to 1.1 mm, and the default width W of the recess 170 is in the range of 0.8 mm to 2.1 mm. With the above structural parameters, for most ink cartridges, bubbles can be appropriately reduced, while the air guide hole 150 is not too narrow to affect the entry of gas, and the structure is easy to manufacture. It can be understood that the diameter D of the air guide hole 150 refers to the diameter at the place with a complete circumference.

[0038] In the embodiment, the width W of the default recess 170 is equal to the width H of the end of the air guide hole 150 close to the ink chamber 130, thereby ensuring a sufficient width to reduce the volume of the air guide hole 150, while the structure is regular and easy to manufacture. It can be understood that the width of the end of the air guide hole 150 close to the ink chamber 130 refers to the width H of the remaining portion of the hole wall of the air guide hole 150 outside the portion of the hole wall of the air guide hole 150 "removed" by the default recess 170.

[0039] In the embodiment, the diameter D of the air guide hole 150 ranges from 1.3 mm to 1.8 mm, the minimum wall thickness T ranges from 0.5 mm to 0.9 mm, and the width W of the default recess 170 ranges from 1.3 mm to 2.0 mm.

[0040] It can be understood that the specific structural parameters given above are only general preferred implementation methods. The structural parameters can be adjusted accordingly for different specific situations and can be configured according to actual conditions.

[0041] In the embodiment, the default recess 170 makes the air guide hole 150 near the end of the ink chamber 130 partially default, and the part without default is provided with a chamfer 180. With the above structure, the sharp angle can be reduced, which is convenient for manufacturing. In addition, the chamfer 180 can actually reduce the actual length and actual volume of the air guide hole 150.

[0042] In the embodiment, the ink leakage prevention member 200 is a sponge block; the shape of the lower end of the air cavity 110 is adapted to the shape of the ink leakage prevention member 200, and the sponge block is accommodated and fixed at the lower end of the air cavity 110. The structure of the ink leakage prevention member 200 is simple and the installation is stable.

[0043] It is conceivable that, in some embodiments, the ink leakage prevention member 200 is not limited to using a sponge, and may be other structures that are breathable and can limit ink leakage from the ink chamber 130, such as a breathable waterproof membrane, etc.

[0044] In the embodiment, the box body 100 includes a main shell 101 and a cover 102, the main shell 101 and the cover 102 enclose an air cavity 110 and an ink cavity 130, the ink outlet 140 is provided in the main shell 101, the air inlet 120 is provided in the cover 102, the hole wall of the air inlet 120 extends downward to form an insertion portion, and the insertion portion is inserted downward into the air cavity 110. With the above structure, even if the air cavity 110 has ink leakage, it is not easy to overflow through the air inlet 120.

[0045] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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.

[0046] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An ink cartridge for reducing air pressure shock, characterized in that: include: A box body (100) is provided with an air cavity (110), an air inlet hole (120), an ink cavity (130), an ink outlet hole (140) and an air guide hole (150); the air inlet hole (120) is communicated with the air cavity (110); the ink outlet hole (140) is communicated with the ink cavity (130); the air cavity (110) and the ink cavity (130) are arranged side by side on the left and right and are separated by a vertical partition plate (160); the air guide hole (150) is opened at the lower part of the vertical partition plate (160) and passes through the vertical partition plate (160); the air cavity (110) and the ink cavity (130) are communicated with each other through the air guide hole (150); An ink leakage prevention member (200) is arranged in the air cavity (110) and covers (102) one end of the air guide hole (150) close to the air cavity (110), wherein the ink leakage prevention member (200) allows air to pass through and can limit the ink in the ink cavity (130) from entering the air cavity (110) at a position outside the ink leakage prevention member (200); The vertical partition plate (160) is provided with a default recess (170) on the plate surface close to the ink chamber (130), and the default recess (170) is arranged on the peripheral side of the air guide hole (150), and the default recess (170) extends through the hole wall at the upper part of the air guide hole (150).

2. The ink cartridge for reducing air pressure shock according to claim 1, characterized in that: The default recess (170) is a strip-shaped recess extending linearly upward.

3. The ink cartridge for reducing air pressure shock according to claim 2, characterized in that: Taking the plate surface of the vertical partition plate (160) close to the ink chamber (130) as a reference, the depth of the default recess (170) gradually decreases in a direction away from the air guide hole (150).

4. The ink cartridge for reducing air pressure shock according to claim 3, characterized in that: The included angle β formed between the extension axis of the default recess (170) and the hole axis of the air guide hole (150) on the side close to the ink chamber (130) is an acute angle.

5. The ink cartridge for reducing air pressure shock according to claim 2, 3 or 4, characterized in that: The groove surface of the default recess (170) is a U-shape with a smooth transition.

6. The ink cartridge for reducing air pressure shock according to claim 1 or 2, characterized in that: The diameter D of the air guide hole (150) ranges from 0.8 mm to 2.1 mm, the default recess (170) enables the vertical partition plate (160) to form a minimum wall thickness T at the air guide hole (150), the minimum wall thickness T ranges from 0.4 mm to 1.1 mm, and the width W of the default recess (170) ranges from 0.8 mm to 2.1 mm.

7. The ink cartridge for reducing air pressure shock according to claim 6, characterized in that: The width W of the default recess (170) is equal to the width H of one end of the air guide hole (150) close to the ink chamber (130).

8. The ink cartridge for reducing air pressure shock according to claim 6, characterized in that: The diameter D of the air guide hole (150) ranges from 1.3 mm to 1.8 mm, the minimum wall thickness T ranges from 0.5 mm to 0.9 mm, and the width W of the default recess (170) ranges from 1.3 mm to 2.0 mm.

9. The ink cartridge for reducing air pressure shock according to claim 1 or 2, characterized in that: The default recess (170) forms a local default at one end of the air guide hole (150) close to the ink chamber (130), and the portion that does not form a default is provided with a chamfer (180).

10. The ink cartridge for reducing air pressure shock according to claim 1, characterized in that: The ink leakage prevention member (200) is a sponge block; the shape of the lower end of the air cavity (110) is adapted to the shape of the ink leakage prevention member (200), and the sponge block is accommodated and fixed at the lower end of the air cavity (110).

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