Ink box

Abstract

The utility model discloses an ink box, which can be installed in an ink-jet printer along the front and back direction, and comprises a sealing film, a first sealing film and a second sealing film, the box body is provided with an ink storage cavity used for storing ink, and the ink storage cavity can be sealed by the sealing film; the ink box further comprises a box cover, the box cover can be installed on the box body in the left-right direction perpendicular to the front-back direction, the box cover comprises a cover plate and a protrusion, the cover plate can cover the sealing film, the protrusion is arranged along the periphery of the cover plate, and when the box cover is installed on the box body, the protrusion is arranged on the periphery of the cover plate. The protrusion is connected with the box body, and the protrusion and the sealing film are arranged in a spaced mode. The effective utilization rate of the material of the sealing film is higher, the material cost is saved, a storage area does not need to be arranged for the part, beyond the sealing film coverage area, of the sealing film, and the ink box space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet imaging, in particular to an ink cartridge installed in an inkjet printer. Background Art

[0002] The prior art discloses an inkjet printing cartridge, which uses a rectangular sealing film to seal the ink storage cavity of the ink cartridge, but the shape of the sealing film does not match the shape of the sealing film coverage area of ​​the ink cartridge, so that a certain amount of the sealing film will exceed the sealing film coverage area during sealing, resulting in waste of the sealing film; and the prior art stores the sealing film that exceeds the sealing film coverage area into a storage area under the downward pressure of a protrusion, and the establishment of the storage area will increase the volume of the original ink cartridge, or reduce the volume of the original ink storage cavity of the ink cartridge, resulting in waste of materials or reduction of ink storage capacity; in addition, if the sealing film exceeds the sealing film coverage area too much, it will be easier to uncover the sealing film after the ink in the ink cartridge is used up, thereby performing self-ink filling, and this irregular operation will affect the printing quality. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the utility model provides a new ink cartridge, which is mainly achieved through the following technical solutions:

[0004] An ink cartridge can be installed in an inkjet printer along a front-to-back direction, the ink cartridge comprising:

[0005] Sealing membrane;

[0006] The box body has an ink storage cavity for storing ink, and the ink storage cavity can be sealed by the sealing film;

[0007] The ink cartridge also includes a box cover, which can be installed on the box body along the left-right direction perpendicular to the front-back direction, the box cover includes a cover plate and a protrusion, the cover plate can cover the sealing film, the protrusion is arranged along the outer periphery of the cover plate, and when the box cover is installed on the box body, the protrusion is connected to the box body, and the protrusion is spaced apart from the sealing film.

[0008] Furthermore, the box body includes a side wall, which is a wall extending from the box body in the left-right direction, and the side wall includes an inner side surface and an outer side surface arranged opposite to each other, the inner side surface is a surface on the side wall that contacts the ink, and the outer side surface is a surface on the side wall that is farther away from the ink than the inner side surface, and in a direction intersecting the left-right direction, the sealing film has an excess portion that exceeds the outer side surface, and when projected and measured in the left-right direction, the distance between the farthest end of the excess portion of the sealing film and the outer side surface is between 0 and 2 mm.

[0009] Further, when projected and measured in the left - right direction, the closest distance between the edge of the sealing film and the outer side surface is between 0.5 mm and 1 mm.

[0010] Further, the up - down direction is arranged cross -wise with the left - right direction. The inkjet printer is provided with a light detection part, and the ink cartridge further has an occlusion part that can block the optical path of the light detection part. In the up - down direction, the occlusion part is located above the sealing film.

[0011] Further, the up - down direction is arranged cross -wise with the left - right direction. The ink cartridge further includes a chip. In the up - down direction, the chip is located above the sealing film.

[0012] Further, the ink cartridge further includes an ink outlet and an air vent hole. The ink outlet is configured to supply the ink liquid from the inside of the ink storage cavity to the outside of the ink storage cavity, and the air vent hole is configured to supply air from the outside of the ink storage cavity to the inside of the ink storage cavity.

[0013] Further, one of the cartridge body or the cartridge cover has a locking protrusion, and the other of the cartridge body or the cartridge cover has a corresponding locking hole. By engaging and fixing the locking protrusion with the locking hole, the cartridge cover is installed on the cartridge body.

[0014] Further, the locking protrusion is an elastic buckle.

[0015] The utility model provides an ink cartridge. The cartridge body has a first ink storage cavity for storing ink liquid, which is sealed with a sealing film, and the sealing film completely covers the sealing film covering area, which is beneficial for sealing. When measured in a direction perpendicular to the left - right direction, the closest distance between the edge of the sealing film projected in the left - right direction and the edge of the outer side surface projected in the left - right direction is between 0 and 2 mm. The effective utilization rate of the material of the sealing film is higher, saving material costs, and there is no need to set a storage area for the part of the sealing film that exceeds the sealing film covering area, saving the space of the ink cartridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exploded view of the ink cartridge in the utility model;

[0017] Figure 2 is another perspective exploded view of the ink cartridge in the utility model;

[0018] Figure 3 is a structural view of the cartridge body in the utility model;

[0019] Figure 4 is another perspective structural view of the cartridge body in the utility model;

[0020] Figure 5It is a schematic structural diagram of the box cover in the present utility model;

[0021] Figure 6 It is a schematic structural diagram of another perspective of the box cover in the present utility model;

[0022] Figure 7 It is a schematic structural diagram of the ink cartridge in the present utility model not sealed by the sealing film;

[0023] Figure 8 It is a schematic structural diagram of the ink cartridge in the present utility model sealed by the sealing film;

[0024] Figure 9 It is a schematic structural diagram of another perspective of the ink cartridge in the present utility model sealed by the sealing film;

[0025] Figure 10 It is a schematic structural diagram of yet another perspective of the ink cartridge in the present utility model sealed by the sealing film;

[0026] Figure 11 It is a schematic three - dimensional assembly diagram of the ink cartridge in the present utility model;

[0027] Figure 12 It is a schematic three - dimensional assembly diagram of another perspective of the ink cartridge in the present utility model;

[0028] Figure 13 It is a schematic diagram of the position of the sealing film and the box cover during sealing in the present utility model;

[0029] Figure 14 It is in the present utility model Figure 13 A partial enlarged schematic diagram of A;

[0030] Figure 15 It is in the present utility model Figure 13 A partial enlarged schematic diagram of B.

[0031] Reference numerals of the drawings: 1 - cartridge body; 2 - box cover; 3 - sealing film; 4 - ink cartridge; 5 - chip; 6 - chip holder; 7 - ink outlet; 8 - air vent; 9 - cover plate; 10 - first ink storage cavity; 11 - front wall; 12 - rear wall; 13 - top wall; 14 - bottom wall; 15 - left wall; 16 - right wall; 17 - side wall; 18 - outer surface; 19 - inner surface; 20 - outer side surface; 21 - inner side surface; 22 - side surface; 25 - reinforcing rib; 26 - locking hole; 27 - locking projection; 28 - air intake area; 29 - second ink storage cavity; 30 - sealing film covering area; 31 - ink outlet area; 32 - protrusion; 33 - shielding part. Detailed implementation manners

[0032] In order to make the objectives, technical solutions and technical effects of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions of the ink cartridge of the present utility model with reference to the accompanying drawings. Obviously, the described embodiments are only a preferred embodiment of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.

[0033] As Figure 1 and Figure 12 shown, Figure 1 is the three-dimensional exploded view of the ink cartridge provided by the present utility model, Figure 12 is the three-dimensional assembled view of the ink cartridge provided by the present utility model. The ink cartridge is arranged to be detachably installed in an inkjet printer (not shown in the drawings) along the direction from the back to the front while maintaining a vertical state (the vertical state is also the installation state of the ink cartridge). The present utility model stipulates that the direction for the ink cartridge 4 to be inserted into and removed from the inkjet printer is the front-back direction. The up-down direction intersects with the front-back direction. From the up-down direction, the side where the chip 5 is located is the upper side of the ink cartridge 4, and the side close to the ink outlet 7 is the lower side of the ink cartridge 4. The direction perpendicular to both the front-back direction and the up-down direction is the left-right direction.

[0034] As Figure 11 and Figure 12 shown, the ink cartridge 4 has a front wall 11, a rear wall 12, a top wall 13, a bottom wall 14, a left wall 15 and a right wall 16. The front wall 11 and the rear wall 12 are oppositely arranged in the front-back direction. The top wall 13 and the bottom wall 14 are oppositely arranged in the up-down direction. The left wall 15 and the right wall 16 are oppositely arranged in the left-right direction. Both the top wall 13 and the bottom wall 14 are connected to the left wall 15, the right wall 16, the front wall 11 and the rear wall 12.

[0035] As Figure 1 shown, Figure 1 is the three-dimensional exploded view of the ink cartridge provided by the present utility model. The ink cartridge 4 further includes an ink outlet 7 and an air guide hole 8. The ink outlet 7 is arranged on the front wall 11 of the cartridge body 1 and close to the bottom wall 14. The ink cartridge 4 supplies ink to the inkjet printer through the ink outlet 7. The air guide hole 8 is arranged on the right wall 16 in the air inlet area 28 of the cartridge body 1 and communicates with the first ink storage cavity 10. The first ink storage cavity 10 communicates with the external air through the air guide hole 8 to ensure that when the ink cartridge 4 is working, the air pressure requirement for the ink to smoothly enter the inkjet printer is maintained, so as to form fluidity. Before the ink cartridge 4 is used, the ink outlet 7 and the air guide hole 8 will be sealed to prevent ink leakage. In addition, due to the increase in temperature or the influence of external forces on the ink cartridge 4, the pressure inside the ink cartridge 4 may be greater than or less than the pressure outside the ink cartridge 4. Since the sealing film 3 has good elasticity and can adapt to different pressure effects, the stability of the seal is further ensured.

[0036] As Figure 11As shown Figure 11 is a three-dimensional assembly schematic diagram of the ink cartridge in the present utility model. The ink cartridge 4 further includes a chip 5, and the chip 5 is disposed on the upper surface of the top wall 13 of the cartridge body 1 and near the front wall 11. In addition, the ink cartridge 4 further has a chip holder 6, and the chip holder 6 is disposed at the intersection of the front wall 11 and the top wall 13 of the cartridge body 1. The chip holder 6 and the cartridge body 1 are integrally formed. In addition, the chip 5 is horizontally placed on the chip holder 6. In addition, an inkjet printer is provided with a light detection unit (not shown in the drawings), and the ink cartridge 4 further has a shielding portion 33 that matches the light detection unit. In the up and down direction, the shielding portion 33 is located above the sealing film 3.

[0037] As Figure 3 and Figure 5 shown Figure 3 is a structural schematic diagram of the cartridge body in the present utility model, Figure 5 is a structural schematic diagram of the cartridge cover in the present utility model. The cartridge body 1 further has locking holes 26 that penetrate in the left and right directions, and a plurality of locking holes 26 are provided at intervals. The cartridge cover 2 further has locking protrusions 27 that extend in the left and right directions. The locking protrusions 27 are connected to the cover plate 9, and the locking protrusions 27 are of an elastic buckle structure. The number and positions of the locking holes 26 and the number and positions of the locking protrusions 27 are respectively arranged in correspondence, and the locking protrusions 27 can cooperate with the locking holes 26 in the left and right directions to achieve the effect of snap-fitting and fixing. Through the locking protrusions 27 and the locking holes 26, the cartridge cover 2 can be installed and disassembled with the cartridge body 1 in the left and right directions. In addition, the positions of the locking holes 26 and the corresponding locking protrusions 27 can be swapped, that is, one of the cartridge body 1 or the cartridge cover 2 has the locking protrusions 27, then the other of the cartridge body 1 or the cartridge cover 2 has the corresponding locking holes 26, and the cartridge cover 2 is installed on the cartridge body 1 through the snap-fitting and fixing of the locking protrusions 27 and the locking holes 26.

[0038] The ink cartridge 4 includes a cartridge body 1, a cartridge cover 2, and a sealing film 3. The cartridge body 1 has a sealing film covering area 30 (which will be introduced in detail below). A first ink storage chamber 10 is provided in the sealing film covering area 30, and the first ink storage chamber 10 is used for storing ink. The sealing film 3 is similar in shape and size to the sealing film covering area 30, and the sealing film 3 completely covers the sealing film covering area 30 to prevent the ink in the first ink storage chamber 10 from flowing out. The cartridge body 1 and the cartridge cover 2 are snap-fitted with each other to form a detachable integral body, and the detachable integral body is approximately rectangular parallelepiped-shaped.

[0039] As Figure 3 and Figure 4As shown, the sealing film covering area 30 includes a first ink storage chamber 10, a second ink storage chamber 29, an air inlet area 28, and an ink outlet area 31. Specifically, the outer surface 18 is the surface on the cartridge body 1 perpendicular to the left-right direction and in contact with the outside of the ink cartridge 4. Opposite to the outer surface 18 in the left-right direction is the inner surface 19 of the cartridge body 1. The wall extending from the inner surface 19 in the left-right direction is the side wall 17 of the cartridge body 1. The surface of the side wall 17 in contact with the ink is the inner side surface 21, the surface of the side wall 17 on the side away from the ink relative to the inner side surface 21 is the outer side surface 20, and the surface of the side wall 17 perpendicular to the left-right direction is the side surface 22. The sealing film covering area 30 is the area surrounded by the inner surface 19, the outer side surface 20, and the sealing film 3. The air guide hole 8, the air inlet area 28, the first ink storage chamber 10, the ink outlet area 31, and the ink outlet 7 are connected in sequence to form a complete loop, and the air inlet area 28 communicates with the first ink storage chamber 10, and the ink outlet area 31 communicates with the first ink storage chamber 10. Along the top-down direction, the air inlet area 28, the second ink storage chamber 29, and the ink outlet area 31 are arranged in sequence within the sealing film covering area 30. Moreover, the ink outlet area 31 is more forward in the front-back direction than the air inlet area 28 and the second ink storage chamber 29. After the ink cartridge 4 is sealed by the sealing film 3, the ink storage areas of the ink cartridge 4 are divided into two types. One is that the first ink storage chamber 10 in the ink cartridge 4 stores ink, while the second ink storage chamber 29 does not store ink, and at this time the second ink storage chamber 29 is completely closed. The other is that both the first ink storage chamber 10 and the second ink storage chamber 29 in the ink cartridge 4 store ink, and at this time the second ink storage chamber 29 communicates with the first ink storage chamber 10. The ink cartridge capacities of the above two ink storage areas are different, and the manufacturer can select according to the actual required ink cartridge capacity.

[0040] As Figure 9 , Figure 13 , Figure 14 and Figure 15As shown, the sealing film 3 completely covers the sealing film coverage area 30, and the sealing film 3 has a redundant portion that exceeds the outer side surface 20. When projected and measured in the left-right direction, the closest distance between the farthest end of the redundant portion of the sealing film 3 and the edge of the outer side surface 20 projected in the left-right direction is between 0 and 2 mm, and the sealing film 3 is tightly bonded to the side surface 22 of the side wall 17, ensuring that the sealing film 3 seals the first ink storage cavity 10, the second ink storage cavity 29 and the ink outlet area 31 in the left-right direction. Preferably, when projected and measured in the left-right direction, the closest distance between the farthest end of the redundant portion of the sealing film 3 and the edge of the outer side surface 20 projected in the left-right direction is between 0.5 mm and 1.5 mm. The box cover 2 includes a cover plate 9 and a protrusion 32. The cover plate 9 is a plate that is arranged on the box cover 2 and is parallel to the front-back direction and the up-down direction and has the thinnest thickness. The protrusion 32 is arranged as the edge portion of the cover plate 9 extending in the left-right direction and surrounding the periphery of the cover plate 9. When the box body 1 and the box cover 2 are mutually engaged in the left-right direction to form a detachable whole, the cover plate 9 on the box cover 2 completely covers the sealing film 3, and the shortest distance d between the side projected in the left-right direction of the sealing film 3 and the side projected in the left-right direction of the protrusion 32 of the box cover 2 includes d1 to d9, and the length range of the distance d is between 0 and 6 mm, and the sealing film 3 and the protrusion 32 of the box cover 2 do not contact, that is, the two are arranged at intervals, and the part of the sealing film 3 that exceeds the sealing film coverage area 3 will not be subjected to the pressure from the protrusion 32 of the box cover 2 along the plane perpendicular to the sealing film. And the surface of the sealing film 3 projected in the left-right direction has at least 5 right angles, and the design of multiple right angles can facilitate the cutting of the sealing film 3.

[0041] like Figure 6 As shown, a reinforcing rib 25 is provided at the connection between the protrusion 32 on the box cover 2 and the cover plate 9, and the number of the reinforcing ribs 25 is not less than three. The reinforcing rib 25 is perpendicular to the connected protrusion 32 and the cover plate 9, and the height of the reinforcing rib 25 in the left-right direction is the same as the height of the connected protrusion 32 in the left-right direction, and the reinforcing rib 25 does not contact the sealing film 3. The provision of the reinforcing rib 25 makes the connection strength between the protrusion 32 inside the box cover 2 and the cover plate 9 higher.

[0042] The sealing film provided by the utility model completely covers the sealing film coverage area, which is conducive to sealing. When measured in a direction perpendicular to the left and right directions, the closest distance between the edge of the sealing film projected in the left and right directions and the edge of the outer side surface projected in the left and right directions is between 0 and 2 mm. The material utilization rate of the sealing film is higher, which saves material costs, and there is no need to set a storage area for the portion of the sealing film that exceeds the sealing film coverage area, which saves ink cartridge space. In addition, the length of the portion of the sealing film that exceeds the sealing film coverage area is very short, which can reduce the possibility of irregular operations such as easily uncovering the sealing film to refill the ink by yourself after the ink in the ink cartridge is used up, thereby ensuring the printing quality of the ink cartridge.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An ink cartridge that can be installed in an inkjet printer along a front-to-back direction, the ink cartridge comprising: Sealing membrane; The box body has an ink storage cavity for storing ink, and the ink storage cavity can be sealed by the sealing film; It is characterized in that the ink cartridge also includes a box cover, which can be installed on the box body along the left-right direction perpendicular to the front-back direction, the box cover includes a cover plate and a protrusion, the cover plate can cover the sealing film, the protrusion is arranged along the outer periphery of the cover plate, and when the box cover is installed on the box body, the protrusion is connected to the box body, and the protrusion is spaced apart from the sealing film.

2. The ink cartridge according to claim 1, characterized in that: The box body includes a side wall, which is a wall extending from the box body in the left-right direction, and the side wall includes an inner side surface and an outer side surface arranged opposite to each other, the inner side surface is a surface on the side wall that contacts the ink, and the outer side surface is a surface on the side wall that is farther away from the ink than the inner side surface. In a direction intersecting the left-right direction, the sealing film has an excess portion that exceeds the outer side surface, and when projected and measured in the left-right direction, the farthest end of the excess portion of the sealing film and the closest distance to the outer side surface are between 0 and 2 mm.

3. The ink cartridge according to claim 2, characterized in that: When projected and measured in the left-right direction, the distance between the farthest end of the excess portion of the sealing film and the outer side surface is between 0.5 mm and 1 mm.

4. The ink cartridge according to claim 1, characterized in that: The up-down direction is arranged crosswise with the left-right direction. The inkjet printer is provided with a light detection unit. The ink cartridge also has a shielding unit that can shield the light path of the light detection unit. In the up-down direction, the shielding unit is located above the sealing film.

5. The ink cartridge according to claim 1, characterized in that: The up-down direction is arranged to cross the left-right direction, and the ink cartridge further includes a chip. In the up-down direction, the chip is located above the sealing film.

6. The ink cartridge according to claim 1, characterized in that: The ink cartridge also includes an ink outlet and an air guide hole, the ink outlet is configured to supply the ink from the inside of the ink storage cavity to the outside of the ink storage cavity, and the air guide hole is configured to supply air from the outside of the ink storage cavity to the inside of the ink storage cavity.

7. The ink cartridge according to claim 1, characterized in that: If one of the box body or the box cover has a locking protrusion, the other of the box body or the box cover has a corresponding locking hole, and the box cover is installed on the box body by the locking protrusion being engaged and fixed with the locking hole.

8. The ink cartridge according to claim 7, characterized in that: The locking protrusion is an elastic buckle.

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