Ink box capable of preventing air inlet from being blocked

Abstract

The utility model discloses an ink box capable of preventing an air inlet from being blocked, which comprises a box body, the box body is provided with an ink cavity, an ink outlet hole and an air inlet hole, the ink cavity is used for storing ink, the ink outlet hole is used for outputting the ink in the ink cavity, and the air inlet hole is used for inputting external air to the ink cavity to balance air pressure. An opening of the air inlet hole is plugged by an air inlet hole plugging film, and the ink outlet hole is arranged at the front end of the box body and the opening of the ink outlet hole faces forwards. Wherein the front end of the box body is provided with a sinking cavity, the sinking cavity is provided with a front opening facing forwards, the air inlet hole is formed in the cavity wall, opposite to the front opening, of the sinking cavity, and the opening of the air inlet hole faces the front opening. According to the ink box, the air inlet hole can be prevented from being blocked, and normal use of the ink box is guaranteed.

Description

Technical Field

[0001] This utility model relates to printing consumables, and in particular to an ink cartridge that prevents the air inlet from being blocked. Background Technology

[0002] A current ink cartridge has both its ink outlet and air inlet located on the front face of the cartridge body. The ink outlet is used to output ink from the ink chamber of the cartridge, and the air inlet is used to allow air into the ink chamber to balance the air pressure. Before use, to prevent ink leakage during transportation, the air inlet is sealed with an air inlet sealing film. A puncture needle is provided on the printing equipment corresponding to the air inlet, consisting of a cylindrical rear section and a front section with air guide grooves on its circumference. During cartridge installation, the puncture needle can pierce the air inlet sealing film, allowing air to enter the air inlet and thus enabling air intake into the cartridge. However, in actual use, some ink cartridges experience situations where air cannot enter through the air inlet, affecting the normal function of the cartridge. 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 prevents the air inlet from being blocked.

[0004] An ink cartridge according to an embodiment of the present invention for preventing the air inlet from being blocked includes: a cartridge body, having an ink chamber, an ink outlet, and an air inlet; the ink chamber for storing ink, the ink outlet for discharging ink from the ink chamber, and the air inlet for supplying external air to the ink chamber to balance the air pressure; the opening of the air inlet is sealed with an air inlet sealing membrane; the ink outlet is located at the front end of the cartridge body with its opening facing forward; wherein, the front end of the cartridge body has a recessed cavity with a forward-facing front opening, and the air inlet is located on the cavity wall of the recessed cavity opposite to the front opening, with its opening facing the front opening.

[0005] According to an embodiment of the present invention, an ink cartridge that avoids clogging of the air inlet has at least the following beneficial effects: Research has found that the clogging of the air inlet is caused by the excessive toughness of the air inlet sealing film and the excessive penetration of the puncture needle into the air inlet, resulting in the air inlet sealing film wrapping around the cylindrical rear section of the puncture needle. This renders the air guide groove at the front section of the puncture needle ineffective. However, with the structure of the present invention, the puncture needle punctures the air inlet sealing film after passing through the front opening of the recessed cavity. The air inlet is moved back a certain distance relative to the front end of the cartridge body, thus effectively ensuring that the front section of the puncture needle with the air guide groove punctures the air inlet sealing film. Therefore, even if the air inlet sealing film wraps around this section of the puncture needle, the air guide groove can still introduce gas into the air inlet, thereby preventing the air inlet from being blocked and ensuring the normal function of the ink cartridge.

[0006] According to some embodiments of the present invention, a spring abutment plate is provided on the periphery of the front opening, and the spring abutment plate is used to abut against the top pressure spring of the printing device.

[0007] According to some embodiments of the present invention, the box body includes a main shell and a cover. The ink outlet and the air inlet are disposed on the main shell. A recessed groove is provided at the front end of the main shell. A spring abutment plate is disposed on the cover and inserted into the groove opening of the recessed groove. The front opening is a notch opened by the spring abutment plate. The air inlet is disposed at the bottom of the recessed groove.

[0008] According to some embodiments of the present invention, one end of the spring abutment plate is connected to the cover and is perpendicular to the cover. An upper side plate is connected between the upper end of the spring abutment plate and the cover, and a lower side plate is connected between the lower end of the spring abutment plate and the cover. The upper side plate and the lower side plate extend into the sinking groove, and the distance between the upper end face of the upper side plate and the lower end face of the lower side plate is adapted to the width of the sinking groove.

[0009] According to some embodiments of the present invention, the upper side plate and the lower side plate abut against the bottom of the sinking trough.

[0010] According to some embodiments of this utility model, the spring abutment plate, the upper side plate, the lower side plate, and the cover are integrally formed.

[0011] According to some embodiments of the present invention, a first annular rib is provided around the opening of the air inlet, and the air inlet sealing membrane is welded to the first annular rib.

[0012] According to some embodiments of the present invention, the opening of the ink outlet hole is sealed with an ink outlet hole sealing membrane, and a second annular rib is provided around the opening of the ink outlet hole, and the ink outlet hole sealing membrane is welded to the second annular rib.

[0013] According to some embodiments of the present invention, the front end of the cartridge body is provided with a chip mounting position, the chip mounting position is provided with an ink cartridge chip, the chip mounting position is provided with a positioning post and a snap-fit ​​post, the ink cartridge chip is provided with a positioning hole and a snap-fit ​​recess, the positioning hole is adapted to the positioning post, the snap-fit ​​recess is provided on the edge side of the ink cartridge chip, the positioning post is inserted into the positioning hole, and the snap-fit ​​post is snapped into the snap-fit ​​recess.

[0014] According to some embodiments of the present invention, the chip mounting position is a groove, and the positioning post and the snap-fit ​​post are disposed at the bottom of the groove.

[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 a three-dimensional schematic diagram of the removal of the air inlet sealing film and the ink outlet sealing film in an embodiment of this utility model.

[0019] Figure 3 This is an exploded view of the box body according to an embodiment of the present utility model;

[0020] Figure 4 This is a partially enlarged schematic diagram of the face cover according to an embodiment of the present invention.

[0021] Figure label:

[0022] The box body is 100, the ink outlet is 110, the air inlet is 120, the recessed cavity is 130, the front opening is 131, the spring abutment plate is 140, the main shell is 101, the face cover is 102, the recessed groove is 103, the upper side plate is 150, the lower side plate is 160, the first annular rib is 171, the second annular rib is 172, the chip mounting position is 181, the positioning post is 182, and the snap-fit ​​post is 183.

[0023] 200mm air inlet sealing membrane;

[0024] 300mm ink outlet sealing membrane;

[0025] Ink cartridge chip 400, positioning hole 410, snap-fit ​​notch 420. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Reference Figures 1 to 4 An ink cartridge designed to prevent the air inlet from being blocked includes a cartridge body 100. The cartridge body 100 has an ink chamber (not shown in the attached diagram), an ink outlet 110, and an air inlet 120. The ink chamber stores ink, the ink outlet 110 dispenses ink from the ink chamber, and the air inlet 120 supplies external air to the ink chamber to balance the air pressure. The opening of the air inlet 120 is sealed with an air inlet sealing membrane 200. The ink outlet 110 is located at the front end of the cartridge body 100 with its opening facing forward. The front end of the cartridge body 100 has a recessed cavity 130 with a forward-facing front opening 131. The air inlet 120 is located on the cavity wall of the recessed cavity 130 opposite to the front opening 131, with its opening facing the front opening 131.

[0031] Research revealed that the air inlet 120 was blocked because the air inlet sealing membrane 200 was too tough, and the puncture needle penetrated the air inlet 120 excessively. This caused the air inlet sealing membrane 200 to wrap around the cylindrical rear section of the puncture needle, rendering the air guide groove at the front of the puncture needle ineffective. However, with the structure of this invention, the puncture needle passes through the front opening 131 of the recessed cavity 130 before puncturing the air inlet sealing membrane 200. The air inlet 120 is moved back a certain distance relative to the front end of the cartridge body 100, thus effectively ensuring that the front section of the puncture needle with the air guide groove punctures the air inlet sealing membrane 200. Even if the air inlet sealing membrane 200 wraps around this section of the puncture needle, the air guide groove can still introduce gas into the air inlet 120, thereby preventing the air inlet 120 from being blocked and ensuring the normal function of the ink cartridge.

[0032] In some printing devices, a pressure spring is installed to press the ink cartridge. The pressure point is located at the air inlet 120. The pressure spring can automatically eject the ink cartridge or prevent it from becoming loose. For the aforementioned printing device, a spring abutment plate 140 can be provided around the front opening 131. The spring abutment plate 140 is used to engage with the pressure spring of the printing device. With this structure, the spring abutment plate 140 can cooperate with the pressure spring on the printing device, thereby avoiding the structural interference of the recessed cavity 130 with the cooperation of the pressure spring.

[0033] In this embodiment, the housing 100 includes a main housing 101 and a cover 102. The ink outlet 110 and the air inlet 120 are disposed on the main housing 101. A recessed groove 103 is provided at the front end of the main housing 101. A spring abutment plate 140 is disposed on the cover 102 and inserted into the groove of the recessed groove 103. The front opening 131 is a notch formed by the spring abutment plate 140. The air inlet 120 is disposed at the bottom of the recessed groove 103. By using the above structure, the spring abutment plate 140 is provided on the cover 102, thereby avoiding the need to provide this structure on the main housing 101, simplifying the structure of the main housing 101 and facilitating manufacturing.

[0034] In this embodiment, one end of the spring abutment plate 140 is connected to the cover 102 and is perpendicular to the cover 102. An upper side plate 150 is connected between the upper end of the spring abutment plate 140 and the cover 102, and a lower side plate 160 is connected between the lower end of the spring abutment plate 140 and the cover 102. The upper side plate 150 and the lower side plate 160 extend into the recessed groove 103, and the distance between the upper end face of the upper side plate 150 and the lower end face of the lower side plate 160 is adapted to the groove width of the recessed groove 103. With the above structure, the spring abutment plate 140 can form better strength, and the fit with the recessed groove 103 is more stable.

[0035] In this embodiment, the upper side plate 150 and the lower side plate 160 abut against the bottom of the sinkhole 103, thereby providing more stable support for the spring abutment plate 140.

[0036] In this embodiment, the spring abutment plate 140, the upper side plate 150, the lower side plate 160, and the cover 102 are integrally formed, which facilitates manufacturing.

[0037] In this embodiment, a first annular rib 171 is provided around the opening of the air inlet 120, and the air inlet sealing membrane 200 is welded to the first annular rib 171. By providing the first annular rib 171, the welding of the air inlet sealing membrane 200 can be facilitated, making production convenient.

[0038] In this embodiment, the opening of the ink outlet 110 is sealed with an ink outlet sealing film 300, and a second annular rib 172 is provided around the opening of the ink outlet 110. The ink outlet sealing film 300 is welded to the second annular rib 172. The ink outlet sealing film 300 ensures that ink will not leak before the ink cartridge is used or during transportation. It can be torn open or punctured by the ink suction nozzle of the printing device when the ink cartridge is used. The second annular rib 172 facilitates the welding of the ink outlet sealing film 300.

[0039] In this embodiment, the front end of the housing 100 is provided with a chip mounting position 181, on which an ink cartridge chip 400 is mounted. The chip mounting position 181 is provided with a positioning post 182 and a snap-fit ​​post 183. The ink cartridge chip 400 is provided with a positioning hole 410 and a snap-fit ​​recess 420. The positioning hole 410 is adapted to the positioning post 182, and the snap-fit ​​recess 420 is located on the edge side of the ink cartridge chip 400. The positioning post 182 is inserted into the positioning hole 410, and the snap-fit ​​post 183 is snapped into the snap-fit ​​recess 420. Using the above structure, the ink cartridge chip 400 can be easily positioned and installed, making installation convenient.

[0040] In this embodiment, the chip mounting position 181 is a groove, and the positioning post 182 and the snap-fit ​​post 183 are disposed at the bottom of the groove.

[0041] 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.

[0042] 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 that prevents the air inlet from being blocked, characterized in that, include: The housing (100) is provided with an ink chamber, an ink outlet (110) and an air inlet (120). The ink chamber is used to store ink, the ink outlet (110) is used to output the ink from the ink chamber, and the air inlet (120) is used to input external air into the ink chamber to balance the air pressure. The opening of the air inlet (120) is sealed with an air inlet sealing membrane (200). The ink outlet (110) is located at the front end of the housing (100) and the opening faces forward. The box body (100) has a recessed cavity (130) at its front end. The recessed cavity (130) has a front opening (131) facing forward. The air inlet (120) is located on the cavity wall of the recessed cavity (130) opposite to the front opening (131). The opening of the air inlet (120) faces the front opening (131).

2. The ink cartridge for preventing the air inlet from being blocked according to claim 1, characterized in that: A spring abutment plate (140) is provided on the periphery of the front opening (131), and the spring abutment plate (140) is used to abut against the top pressure spring of the printing device.

3. The ink cartridge for preventing the air inlet from being blocked according to claim 2, characterized in that: The box body (100) includes a main shell (101) and a cover (102). The ink outlet (110) and the air inlet (120) are disposed on the main shell (101). A recessed groove (103) is provided at the front end of the main shell (101). The spring abutment plate (140) is disposed on the cover (102) and inserted into the groove of the recessed groove (103). The front opening (131) is a notch opened by the spring abutment plate (140). The air inlet (120) is disposed at the bottom of the recessed groove (103).

4. The ink cartridge for preventing the air inlet from being blocked according to claim 3, characterized in that: One end of the spring abutment plate (140) is connected to the cover (102) and is perpendicular to the cover (102). An upper side plate (150) is connected between the upper end of the spring abutment plate (140) and the cover (102). A lower side plate (160) is connected between the lower end of the spring abutment plate (140) and the cover (102). The upper side plate (150) and the lower side plate (160) extend into the sinking groove (103). The distance between the upper end face of the upper side plate (150) and the lower end face of the lower side plate (160) is adapted to the groove width of the sinking groove (103).

5. The ink cartridge for preventing the air inlet from being blocked according to claim 4, characterized in that: The upper side plate (150) and the lower side plate (160) abut against the bottom of the sinking trough (103).

6. The ink cartridge for preventing the air inlet from being blocked according to claim 4, characterized in that: The spring abutment plate (140), the upper side plate (150), the lower side plate (160), and the cover (102) are integrally formed.

7. The ink cartridge for preventing the air inlet from being blocked according to claim 1, characterized in that: The air inlet (120) has a first annular rib (171) around its opening, and the air inlet sealing membrane (200) is welded to the first annular rib (171).

8. The ink cartridge for preventing the air inlet from being blocked according to claim 1, characterized in that: The opening of the ink outlet (110) is sealed with an ink outlet sealing membrane (300), and a second annular rib (172) is provided around the opening of the ink outlet (110). The ink outlet sealing membrane (300) is welded to the second annular rib (172).

9. The ink cartridge for preventing the air inlet from being blocked according to claim 1, characterized in that: The front end of the housing (100) is provided with a chip mounting position (181), on which an ink cartridge chip (400) is mounted. The chip mounting position (181) is provided with a positioning post (182) and a snap-fit ​​post (183). The ink cartridge chip (400) is provided with a positioning hole (410) and a snap-fit ​​recess (420). The positioning hole (410) is adapted to the positioning post (182). The snap-fit ​​recess (420) is located on the edge side of the ink cartridge chip (400). The positioning post (182) is inserted into the positioning hole (410), and the snap-fit ​​post (183) is snapped into the snap-fit ​​recess (420).

10. The ink cartridge for preventing the air inlet from being blocked according to claim 9, characterized in that: The chip mounting position (181) is a groove, and the positioning post (182) and the snap-fit ​​post (183) are disposed at the bottom of the groove.

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