Ink storage unit

Abstract

The utility model discloses an ink storage unit, which comprises an ink bag for storing ink and an adapter arranged at the front end of the ink bag, and is arranged on an ink-jet printer through a drawer-shaped bearing box. The ink storage unit and the bearing box have the same width direction and length direction, and the installation direction of the ink storage unit into the ink-jet printer is parallel to the length direction. The bearing box comprises a front wall located on the front side in the installation direction, a rear wall located on the rear side, side walls located on the two sides in the width direction, and a bottom wall connected with the front wall, the rear wall and the side walls. Positioning bosses are arranged on the two sides in the bearing box in the width direction and located on the front side of the bearing box. In the installation direction, the front side of the adapter abuts against the front wall so that the adapter can be positioned in the length direction. The two sides of the adapter abut against local parts of the side faces of the positioning boss or the two sides of the adapter abut against the side walls so that the adapter can be positioned in the width direction. And miniaturization of the adapter is facilitated, the structure is simplified, a mold is simplified, materials are saved, and higher machining precision is obtained.

Description

[0001] The present utility model claims the priority of the prior Chinese application with the application date of April 9, 2023, the invention name of “Ink Storage Unit” and the application number of 202320772749.2, and the prior Chinese application with the application date of May 8, 2023, the invention name of “Ink Storage Unit” and the application number of CN202321092944.7. All contents of the prior Chinese applications are cross-referenced in this application. Technical Field

[0002] The utility model belongs to the field of inkjet printing, and in particular relates to an ink storage unit used for supplying ink to inkjet printing equipment. Background Art

[0003] Existing inkjet printers are supplied with ink via replaceable ink storage units.

[0004] Patent application US20230066644A1 discloses an ink storage unit for an inkjet printer, which has an ink sac for storing ink and an adapter installed at the front end of the ink sac. The adapter is provided with an ink delivery channel for delivering the ink in the ink sac to the ink needle of the inkjet printer. The inkjet printer is provided with a drawer-type carrier box, and positioning bosses are provided on both sides of the carrier box along the width direction, and a positioning groove that cooperates with the positioning boss is provided on the adapter of the ink storage unit. The positioning boss is provided with an outer convex arc surface, and the positioning groove is provided with an inner concave arc surface. When the positioning boss is inserted into the positioning groove, the outer convex arc surface cooperates with the inner concave arc surface to horizontally position the adapter in the carrier box. The cooperation between the outer convex arc surface and the inner concave arc surface requires high mold processing accuracy and high manufacturing cost. Along the length direction of the ink storage unit, that is, the installation direction of the ink storage unit into the inkjet printer, the positioning groove surrounds the positioning boss. Therefore, the adapter is larger, more materials are used, and the manufacturing cost is higher. Summary of the invention

[0005] In view of the problems existing in the prior art, the main purpose of the utility model is to provide an ink storage unit with a simple structure.

[0006] In order to achieve the above-mentioned main purpose, the utility model provides an ink storage unit, including an ink bag for storing ink and an adapter installed at the front end of the ink bag, which is installed in an inkjet printer through a carrier box, the width direction of the ink storage unit is the width direction of the carrier box, and the length direction of the ink storage unit is the length direction of the carrier box, which is parallel to the length direction along the installation direction of the ink storage unit into the inkjet printer; the carrier box includes a front wall located at the front side along the installation direction, a rear wall located at the rear side, side walls located at both sides along the width direction, and a bottom wall connected to the front wall, the rear wall and the side walls; positioning bosses are respectively provided on both sides of the carrier box along the width direction, the positioning bosses are located at the front side of the carrier box along the installation direction, and the front side of the adapter abuts against the front wall along the installation direction to achieve the positioning of the adapter in the length direction; the main body of the adapter is located between the positioning boss and the front wall; the two sides of the adapter are respectively abutted against the parts of the side surfaces of the positioning boss or the two sides of the adapter are respectively abutted against the side walls to achieve the positioning of the adapter in the width direction.

[0007] Furthermore, corners are provided on both sides of the adapter, and the corners abut against the side surfaces.

[0008] Furthermore, the adapter is provided with planes on both sides along the width direction, and the planes partially abut against the side surfaces of the positioning bosses.

[0009] Furthermore, positioning plates are respectively provided on both sides of the adapter along the width direction, and two outer ends of the positioning plates along the width direction are respectively abutted against the side walls.

[0010] Furthermore, a positioning portion extending along the length direction is formed on the adapter, and the positioning portion abuts against the rear wall.

[0011] Furthermore, two sides of the adapter along the width direction respectively abut against parts of the side surfaces of the positioning boss or abut against the side walls of the carrying box.

[0012] On the one hand, the utility model also provides an ink storage unit for supplying ink to an inkjet printing device, wherein the ink storage unit needs to be installed in a carrier box of the inkjet printing device, and then the carrier box is pushed along an installation direction so that the carrier box and the ink storage unit are installed in the inkjet printing device, the installation direction is consistent with the length direction of the carrier box and the ink storage unit, the width direction of the carrier box is consistent with the width direction of the ink storage unit, and the carrier box is provided with a positioning boss on the front side of the installation direction, the ink storage unit includes an adapter and an ink bag, and along the installation direction, the adapter is provided on the front side of the positioning boss, and an opening groove is provided on the front wall and the bottom wall of the carrier box, and the adapter is provided with a positioning protrusion extending downward, and the positioning protrusion abuts against the side wall of the opening groove.

[0013] It can be seen from the above solution that the adapter is arranged on the front side of the positioning boss, so that the adapter is smaller, and the ink storage unit is positioned in the carrier box by the abutment between the first protrusion and the side wall of the opening groove.

[0014] Furthermore, the positioning protrusions include a rear positioning protrusion and a lateral positioning protrusion, and the rear positioning protrusion and the lateral positioning protrusion have bottom surfaces located in the same plane.

[0015] Furthermore, the adapter also includes abutment walls, which are located on the left and right sides of the positioning protrusion, and the bottom surface of the abutment walls is flush with the bottom surface of other parts of the adapter and does not protrude downward.

[0016] In order to more clearly illustrate the above-mentioned objectives, technical solutions and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the ink storage unit and the carrier box before being assembled in Example 1 of the utility model.

[0018] Figure 2 It is a three-dimensional schematic diagram of the assembled ink storage unit and the carrier box of Example 1 of the utility model.

[0019] Figure 3 for Figure 2 Schematic diagram of the disconnection from top view.

[0020] Figure 4 It is a three-dimensional schematic diagram of the assembled ink storage unit and the carrier box of Example 2 of the utility model.

[0021] Figure 5 for Figure 4 Schematic top view of .

[0022] Figure 6 It is a three-dimensional schematic diagram of the assembled ink storage unit and the carrier box of Example 3 of the utility model.

[0023] Figure 7 for Figure 6 Schematic top view of .

[0024] Figure 8 It is a three-dimensional schematic diagram of the assembled ink storage unit and the carrier box of Example 4 of the utility model.

[0025] Fig. 9 for Figure 8 Schematic top view of .

[0026] Fig.10 It is a three-dimensional schematic diagram of the assembled ink storage unit and the carrier box of Example 5 of the utility model.

[0027] Fig.11 for Fig.10 Schematic top view of .

[0028] Fig.12 It is a three-dimensional schematic diagram of the assembled ink storage unit and the carrier box of Example 6 of the utility model.

[0029] Fig.13 for Fig.12 Schematic top view of .

[0030] Fig.14 It is a three-dimensional schematic diagram of the improved embodiment 6 of the utility model after being assembled with the carrying box.

[0031] Fig.15 It is a schematic diagram of the structure of a carrier box of an inkjet printing device;

[0032] Fig.16 It is a schematic diagram of the structure of a carrier box of an inkjet printing device;

[0033] Fig.17 It is a structural schematic diagram of Embodiment 7 of the present utility model;

[0034] Fig.18 This is a schematic diagram of the structure of Embodiment 7 of the present utility model after being installed in a carrier box;

[0035] Fig.19 It is a schematic diagram of the structure of Embodiment 8 of the present utility model;

[0036] Fig. 20 This is a schematic diagram of the structure of Embodiment 8 of the present utility model after being installed in a carrier box;

[0037] Fig.21 It is a structural schematic diagram of Embodiment 9 of the present utility model;

[0038] Fig. 22 yes Fig.21 A local enlarged schematic diagram;

[0039] Fig.23 This is a schematic diagram of the structure of the utility model after the embodiment 9 is installed in the carrier box;

[0040] Fig.24 It is a schematic diagram of the structure of Embodiment 10 of the present utility model;

[0041] Fig.25 yes Fig.10 B is a partial enlarged schematic diagram;

[0042] Fig.26 It is a schematic diagram of the structure of the embodiment 10 of the utility model after being installed in the carrier box. DETAILED DESCRIPTION

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but it is easy for those skilled in the art to understand that the present invention can also be implemented in other ways different from those described herein. Therefore, other possible implementation methods that can be known by those skilled in the art based on the embodiments described in this application all belong to the protection scope of this application.

[0044] The specific structure of the embodiment of the utility model is described in detail below according to the accompanying drawings. It can be understood that the embodiment of the utility model includes but is not limited to the illustrated structure, and those skilled in the art can make corresponding adjustments and improvements to its structure according to actual conditions.

[0045] In the following embodiments 1-6, the width direction 02 of the ink storage unit is the width direction of the carrier box, the length direction 01 of the ink storage unit is the length direction of the carrier box, and the installation direction 04 of the ink storage unit into the inkjet printer is parallel to the length direction 01.

[0046] Example 1

[0047] like Figures 1 to 3 As shown, the ink storage unit 100 includes an ink bag 110 for storing ink and an adapter 120 installed at the front end of the ink bag 110, and is installed in an inkjet printer (not shown) through a drawer-shaped carrier box 150. The carrier box 150 includes a front wall 151 located at the front side along the installation direction 04, a rear wall 152 located at the rear side, side walls 153 located at both sides along the width direction 02, and a bottom wall 154 connected to the front wall 151, the rear wall 152 and the side wall 153. Positioning bosses 155 are respectively provided on both sides along the width direction 02 in the carrier box 150, and the positioning bosses 155 are located at the front side of the carrier box 150 along the installation direction 04. Along the installation direction 04, the front side 121 of the adapter 120 abuts against the front wall 151 to realize the positioning of the adapter 120 in the length direction 01. The two sides 123 of the adapter 120 along the width direction 02 abut against the parts of the side surfaces 156 of the positioning boss 155. To achieve the positioning of the adapter 120 in the width direction 02.

[0048] It can be seen that the adapter 120 does not need to be provided with a groove that completely surrounds the positioning boss 155.

[0049] The adapter 120 is miniaturized and material is saved. The adapter 120 can be positioned in the width direction 02 by abutting the two sides 123 of the adapter 120 against the local positioning boss 155 of the carrier box 150. The side surfaces of the two sides 123 of the adapter 120 can directly abut against the positioning boss 155, and the adapter 120 does not need to be provided with a special concave arc surface that matches the side surface 156, which is conducive to simplifying the shape structure of the adapter 120, simplifying the mold, and reducing the production cost. Using the same cost to manufacture the adapter 120, the adapter 120 with the side surface composed of a plane can obtain a higher processing accuracy.

[0050] Preferably, the front side 121 of the adapter 120 is provided with a groove 122 extending along the height direction 03, and the groove 122 is located at the lower side of the adapter 120. The ink storage unit 100 is downwardly loaded into the carrier box 150 along the height direction 03, and the groove 122 is engaged with the front wall 151 to realize the positioning of the adapter 120 in the length direction 01.

[0051] Preferably, two sides 123 of the adapter 120 are provided with planes 124 , and the edges of the planes 124 abut against the side surfaces 156 .

[0052] Example 2

[0053] See also Figure 4 and Figure 5 The difference between this embodiment and embodiment 1 lies in the positioning structure of the adapter 220 in the width direction 02.

[0054] Specifically, the adapter 220 is provided with planes 224 on both sides along the width direction 02 , and the planes 224 partially abut against the side surfaces 256 of the positioning boss 255 , so as to realize the positioning of the adapter 220 in the width direction 02 .

[0055] Preferably, the plane 224 is perpendicular to the bottom wall 154 of the carrying box 150 .

[0056] Preferably, the plane 224 is parallel to the installation direction 04 .

[0057] This embodiment not only has the technical advantages of embodiment 1, but also because the plane 224 has a higher structural strength than the corner used for positioning in the width direction 02 in embodiment 1, the local abutment between the plane 224 and the side 256 of the positioning boss 255 is more stable, so that it has a longer service life.

[0058] Example 3

[0059] See also Figure 6 and Figure 7The ink storage unit 300 includes an ink bag 310 for storing ink and an adapter 320 installed at the front end of the ink bag 310, and is installed in an inkjet printer (not shown) through a drawer-shaped carrier box 350. The carrier box 350 includes a front wall 351 located at the front side along the installation direction 04, a rear wall 352 located at the rear side, side walls 353 located at both sides along the width direction 02, and a bottom wall 354 connected to the front wall 351, the rear wall 352 and the side wall 353. Positioning bosses 355 are respectively provided on both sides of the carrier box 350 along the width direction 02, and the positioning bosses 355 are located at the front side of the carrier box 350 along the installation direction 04.

[0060] Along the installation direction 04 , the front side 321 of the adapter 320 abuts against the front wall 351 to achieve positioning of the adapter 320 in the length direction 01 .

[0061] The two sides 323 of the adapter 320 along the width direction 02 are respectively in contact with the parts of the side surfaces 356 of the positioning boss 355 , so as to realize the positioning of the adapter 320 in the width direction 02 .

[0062] It can be seen that the adapter 320 does not need to be provided with a groove that completely surrounds the positioning boss 355, which is conducive to the miniaturization of the adapter 320 and saves materials. Since the two sides 323 of the adapter 320 can be positioned in the width direction 02 by abutting against the parts of the positioning boss 355 of the carrier box 350, the sides 123 of the adapter 320 can directly abut against the positioning boss 355, and the adapter 320 does not need to be provided with a special concave arc surface that cooperates with the side 356, which is conducive to simplifying the shape structure of the adapter 320, simplifying the mold, and reducing the production cost. Using the same cost to manufacture the adapter 320, the adapter 320 with the side composed of a plane can obtain a higher processing accuracy.

[0063] Preferably, the front side 321 of the adapter 320 is provided with a positioning surface 322.

[0064] The carrying box 350 is loaded downward in direction 03 , and the positioning surface 322 abuts against the front wall 351 to achieve positioning of the adapter 320 in the length direction 01 .

[0065] Preferably, two sides 323 of the adapter 320 are provided with corners 324, and the corners 324 abut against the side surfaces 356, so as to realize the positioning of the adapter 320 in the width direction 02.

[0066] Obviously, the main body of the adapter 320 is located between the positioning boss 355 and the front wall 351, and the adapter 320 is effectively miniaturized.

[0067] Example 4

[0068] See also Figure 8 and Fig. 9 The difference between this embodiment and embodiment 3 lies in the positioning structure of the adapter 420 in the width direction 02.

[0069] Specifically, the adapter 420 is provided with positioning plates 424 on both sides along the width direction 02, and the two outer ends 425 of the positioning plates 424 along the width direction 02 are respectively in contact with the side walls 453 to achieve the positioning of the adapter 420 in the width direction 02. Along the installation direction 04, the rear side of the positioning plate 424 is provided with abutting surfaces 426, and the abutting surfaces 426 are partially in contact with the side surfaces 456 of the positioning bosses 455, so that the positioning surfaces 422 are in close contact with the front wall 451.

[0070] This embodiment not only has the technical advantages of embodiment 3, but also because the positioning plate 424 has a higher structural strength than the corner portion of embodiment 3 used for positioning in the width direction 02, the local abutment between the positioning plate 424 and the side wall 453 and the side 456 of the positioning boss 455 has a longer service life.

[0071] Example 5

[0072] See also Fig.10 and Fig.11 The ink storage unit 500 includes an ink bag 510 for storing ink and an adapter 520 installed at the front end of the ink bag 510, and is installed in an inkjet printer (not shown) through a drawer-shaped carrier box 550. The carrier box 550 includes a front wall 551 located at the front side along the installation direction 04, a rear wall 552 located at the rear side, side walls 553 located at both sides along the width direction 02, and a bottom wall 554 connected to the front wall 551, the rear wall 552 and the side wall 553. Positioning bosses 555 are respectively provided on both sides of the carrier box 550 along the width direction 02, and the positioning bosses 555 are located at the front side of the carrier box 550 along the installation direction 04.

[0073] Along the installation direction 04 , the front side 521 of the adapter 520 abuts against the front wall 551 to achieve positioning of the adapter 520 in the length direction 01 .

[0074] The two sides 523 of the adapter 520 along the width direction 02 are respectively in contact with the parts of the side surfaces 556 of the positioning boss 555 , so as to realize the positioning of the adapter 520 in the width direction 02 .

[0075] It can be seen that the adapter 520 does not need to be provided with a groove that completely surrounds the positioning boss 555, which is conducive to the miniaturization of the adapter 520 and saves materials. The positioning in the width direction 02 can be completed by abutting the two sides 523 of the adapter 520 with the parts of the positioning boss 555 of the carrier box 550. The side surfaces of the two sides 523 of the adapter 520 can directly abut the positioning boss 555, and the adapter 520 does not need to be provided with a special concave arc surface that cooperates with the side surface 556, which is conducive to simplifying the shape structure of the adapter 520, simplifying the mold, and reducing the production cost. Using the same cost to manufacture the adapter 520, the adapter 520 with the side surface composed of a plane can obtain a higher processing accuracy.

[0076] Specifically, the adapter 520 is provided with planes 524 on both sides along the width direction 02 , and the planes 524 abut against parts of the side surfaces 556 of the positioning boss 555 , so as to realize the positioning of the adapter 520 in the width direction 02 .

[0077] Preferably, the plane 524 is perpendicular to the bottom wall 554 of the carrying box 550 .

[0078] Preferably, the plane 524 is parallel to the installation direction 04 .

[0079] Preferably, the front side 521 of the adapter 520 is provided with a positioning surface 522. The ink storage unit 500 is downwardly loaded into the carrier box 550 along the height direction 03, and the positioning surface 522 abuts against the front wall 551 to realize the positioning of the adapter 520 in the length direction 01.

[0080] The adapter 520 is formed with a positioning portion 526 extending along the length direction 01 . The positioning portion 526 abuts against the rear wall 552 , so that the positioning surface 522 is in close contact with the front wall 551 .

[0081] Example 6

[0082] See also Fig.12 and Fig.13 The difference between this embodiment and embodiment 5 lies in the positioning structure of the adapter 520 in the width direction 02.

[0083] Specifically, positioning plates 624 are respectively provided on both sides of the adapter 620 along the width direction 02 , and two outer ends 625 of the positioning plates 624 along the width direction 02 are respectively abutted against the side walls 653 to achieve positioning of the adapter 520 in the width direction 02 .

[0084] This embodiment not only has the technical advantages of the fifth embodiment, but also because the positioning plate 624 and the side wall 653 are in contact with each other in a plane-to-plane manner, the contact pressure is relatively small, and thus the positioning plate 624 and the side wall 653 are in contact and positioned with each other and have a longer service life.

[0085] The positioning plate 624 is not limited to being formed on both sides of the positioning portion 626. Fig.14 As an improvement, the positioning plate 724 can also be arranged at a position of the adapter 720 close to the front wall 751 of the carrying box 750. This is beneficial to reducing the volume of the positioning plate 724 and saving materials.

[0086] Example 7

[0087] This embodiment needs to be installed in a carrier box of an inkjet printing device to supply ink to the inkjet printing device. The structure of the carrier box is briefly described below. Fig.15 and Fig.16 As shown, the carrying box 90b is a rectangular shell with an open top, so that the carrying box has a bottom wall 91b, a front wall 92b, left and right side walls 93b and a rear wall 94b, and its length is limited by the front wall 92b and the rear wall 94b, and its width is limited by the left and right side walls 93b. The height of the front wall 92b is less than the height of the side walls 93b and the rear wall 94b. On the front side of the carrying box 90b, an opening groove 911b is provided on the front wall 92b and the bottom wall 91b. The opening groove 911b runs through the entire height of the front wall 92b and divides the front wall 92b into two parts, and opens on the bottom wall 91b. On the bottom wall 91b, the opening has a rear surface 9111b and left and right side surfaces 9112b. On the right side of the opening groove 911b, a protrusion 912b inclined along the length direction as a second protrusion is provided on the bottom wall 91b. The positioning bosses 931b are arranged at the front side of the left and right side walls 93b, and protrude from the side walls 93b to the inside of the carrier box. A rib 932b is arranged slightly behind the positioning bosses 931b. The rib 932b protrudes from the bottom end of the side walls 93b and the left and right sides of the bottom wall 91b to the inside of the carrier box, and extends from the end surface 9321b thereof to the rear wall 94b. After the ink storage unit is installed in the carrier box 90b with its length direction and width direction being consistent with the carrier box 90b and the adapter of the ink storage unit being located at the front side of the carrier box 90b, the carrier box 90b and the ink storage unit are then installed in the inkjet printing device along the installation direction A.

[0088] like Fig.17As shown, the ink storage unit 10b includes an ink bag 11b for storing ink and an adapter 12b located at the front end of the ink bag 11b and connected thereto, wherein the ink bag 11b can be made of a flexible material and contains ink for supplying to the inkjet printing device. The upper surface of the adapter 12b has an extension portion 121b extending backwards, and along the projection direction perpendicular to the length and width direction of the ink storage unit 10b, the extension portion 121b partially overlaps with the ink bag 11b, and the extension portion 121b extends backwards from the middle of the width direction of the adapter 12b above the ink bag 11b, and along the backward direction, the width of the extension portion 121b gradually widens, and a protrusion 1211b extending downwards is provided on the rear side, and the protrusion 1211b is provided on the left and right sides of the extension portion 121b, and a avoidance opening 111b is provided on the ink bag 11b, so that the protrusion 1211b further extends downwards to be flush with the bottom surface of the ink bag 11b.

[0089] Fig.18 FIG. 2 shows the structure of the ink storage unit 10b when it is installed in the carrier box 90b. Fig.18 As shown, the ink storage unit 10b is installed downward in the carrier box 90b with its length direction consistent with the carrier box 90b and width direction consistent with the carrier box 90b, and the adapter 12b of the ink storage unit 10b is located at the front side of the carrier box 90b, and the main part of the adapter 12b is located at the front side of the positioning boss 931b, and the front edge of the ink bag 11b can abut against the positioning boss 931b. The rear side surface of the protrusion 1211b of the extension part 121b abuts against the end surface 9321b of the rib 932b to achieve the positioning of the ink storage unit 10b in the length direction. In addition, the front end surface of the adapter 12b can abut against the inner side surface of the front wall 92b of the carrier box 90b to achieve the fixation of the ink storage unit 10b in the length direction. The positioning of the ink storage unit 10b relative to the carrier box 90b in the width direction can be achieved by the two side surfaces of the adapter 12b abutting against the inner surfaces of the left and right side walls 93b of the carrier box 90b, or by the two outer side surfaces of the protrusion 1211b abutting against the inner surfaces of the left and right side walls 93b. After the ink storage unit 10b is installed in the carrier box 90b, the carrier box 90b and the ink storage unit 10b are installed inside the inkjet printing device along the installation direction A. In other embodiments, the extension portion can also extend backward from the left and right sides of the adapter and extend downward at an appropriate position.

[0090] Since the extension part 121b extends above the ink bag 11b, the extension part 121b can be used as a handle. After the ink storage unit 10b is placed in the carrier box 90b, the position of the ink storage unit 10b is adjusted by the extension part 121b to achieve the positioning and fixation of the ink storage unit 10b in the carrier box 90b. In this embodiment, the main body of the adapter 12b is located in front of the positioning boss 931b of the carrier box 90b. Compared with the prior art in which the adapter is provided with a positioning groove to cooperate with the positioning boss of the carrier box to achieve positioning, the adapter of this embodiment has a simple structure and can be made smaller, so that less material is used, cost can be saved, and the possibility of the adapter being contaminated with ink is reduced.

[0091] Example 8

[0092] This embodiment is similar in structure to Embodiment 7, except that the extension portion of the adapter extends below the ink bag.

[0093] like Fig.19 As shown, the ink storage unit 20b includes an ink sac 21b for storing ink and an adapter 22b located at the front end of the ink sac 21b and connected thereto, wherein the ink sac 21b may be made of a flexible material, and contains ink for supplying to the inkjet printing device, and the adapter 22b has a sheet-shaped extension 221b, the bottom surface of the extension 221b and the bottom surface of the main body of the adapter 22b are located in the same plane and extend backward along the main body of the adapter 22b, along the projection direction perpendicular to the length and width direction of the ink storage unit 20b, the extension 221b and the ink sac 21b are partially overlapped, the extension 221b extends backward from the middle of the width direction of the adapter 22b below the ink sac 21b, and along the backward direction, the span of the extension 221b in the width direction gradually widens, and exceeds the width of the ink sac 21b at the rear side. In other embodiments, the extension may also extend backward from the left and right sides of the adapter.

[0094] Fig. 20 FIG. 2 shows the structure of the ink storage unit 20b when it is installed in the carrier box 90b. Fig. 20As shown, the ink storage unit 20b is installed in the carrier box 90b with its length direction consistent with the carrier box 90b, the width direction also consistent with the carrier box 90b, and the adapter 22b of the ink storage unit 20b is located at the front side of the carrier box 90b, the main part of the adapter 22b is located in front of the positioning boss 931b, and the front edge of the ink bag 21b can abut against the positioning boss 931b. The rear side surface of the extension part 221b abuts against the end surface 9321b of the rib 932b to achieve the positioning of the ink storage unit 20b in the length direction. In addition, the front end surface of the adapter 22b can abut against the inner side surface of the front wall 92b of the carrier box 90b to achieve the fixation of the ink storage unit 20b in the length direction. The ink storage unit 20b can be positioned relative to the carrier box 90b in the width direction by the two side surfaces of the adapter 22b abutting against the inner surfaces of the left and right side walls 93b of the carrier box 90b, or by the two outer side surfaces of the extension 221b abutting against the inner surfaces of the left and right side walls 93b. After the ink storage unit 20b is installed in the carrier box 90b, the carrier box 90b and the ink storage unit 20b are installed inside the inkjet printing device along the installation direction A.

[0095] In this embodiment, the main part of the adapter 22b is located in front of the positioning boss 931b of the carrier box 90b. Compared with the prior art in which a positioning groove is set on the adapter to cooperate with the positioning boss of the carrier box to achieve positioning, the adapter of this embodiment has a simple structure and can be made smaller, thereby using less material, saving costs, and reducing the possibility of the adapter being contaminated with ink.

[0096] Example 9

[0097] The structure of this embodiment is similar to that of Embodiment 7 and Embodiment 8, except that the adapter is not provided with an extension portion extending backward. To clearly express the structure of the bottom of the adapter, the view of this embodiment is different from that of Embodiment 1 and Embodiment 2.

[0098] like Fig.21 and Fig. 22As shown, the ink storage unit 30b includes an ink bag 31b for storing ink and an adapter 32b located at the front end of the ink bag 31b and connected thereto, wherein the ink bag 31b can be made of a flexible material, and the ink for supplying to the inkjet printing device is contained therein. The bottom surface of the adapter 32b is provided with a rear positioning protrusion 321b and a lateral positioning protrusion 322b extending downward, and the positioning protrusions 321b and 322b can be connected together to have a bottom surface located in the same plane. The two rear positioning protrusions 321b have a transition arc surface 3211b facing backward and a rear side surface 3212b, and the lateral positioning protrusions 322b on both sides have a transition arc surface 3221b facing laterally outward and an outer side surface 3222b. The rear positioning protrusion 321b is set to two, and the lateral positioning protrusion 322b is also set to two, and the rear positioning protrusion 321b and the lateral positioning protrusion 322b can both be regarded as the first protrusion.

[0099] Fig.23 FIG. 2 shows the structure of the ink storage unit 30b when it is installed in the carrier box 90b. Fig.23 As shown, the ink storage unit 30b is installed downward in the carrier box 90b with its length direction consistent with the carrier box 90b, the width direction also consistent with the carrier box 90b, and the adapter 32b of the ink storage unit 30b is located at the front side of the carrier box 90b, and the adapter 32b is located at the front side of the positioning boss 931b, and the front edge of the ink bag 31b can abut against the positioning boss 931b. The rear side positioning protrusion 321b contacts the rear surface 9111b of the opening groove 911b, and the rear side surface 3212b of the positioning protrusion 321b abuts against the rear surface 9111b. When the rear surface 9111b of the opening groove 911b contacts the transition arc surface 3211b, it will slide along the transition arc surface 3211b until the rear side surface 3212b of the positioning protrusion 321b abuts against the rear surface 9111b, so as to realize the positioning of the ink storage unit 30b in the length direction. At the same time, the two-sided positioning protrusions 322b contact the left and right side surfaces 9112b of the opening groove 911b respectively, and the outer side surfaces 3222b of the two-sided positioning protrusions 322b abut against the left and right side surfaces 9112b of the opening groove 911b respectively. When the side surfaces 9112b of the opening groove 911b contact the transition arc surface 3221b, they will slide along the transition arc surface 3221b until the outer side surfaces 3222b of the two-sided positioning protrusions 322b abut against the left and right side surfaces 9112b of the opening groove 911b respectively, so as to realize the positioning and fixing of the ink storage unit 30b in the width direction. The front end surface of the adapter 32b can abut against the inner surface of the front wall 92b of the carrier box 90b to realize the fixing of the ink storage unit 30b in the length direction. After the ink storage unit 30b is installed in the carrier box 90b, the carrier box 90b and the ink storage unit 30b are installed into the inkjet printing device along the installation direction A.

[0100] In this embodiment, the entire adapter 32b is located on the front side of the positioning boss 931b of the carrier box 90b. Compared with the prior art in which a positioning groove is set on the adapter to cooperate with the positioning boss of the carrier box to achieve positioning, the adapter of this embodiment has a simple structure and can be made smaller, so that less material is used, cost can be saved, and the possibility of the adapter being contaminated with ink is reduced.

[0101] Example 10

[0102] The structure of this embodiment is similar to that of embodiment 9, except that the positioning method of some ink storage units is different.

[0103] like Fig.24 and Fig.25 As shown, the ink storage unit 40b includes an ink sac 41b for storing ink and an adapter 42b located at the front end of the ink sac 41b and connected thereto, wherein the ink sac 41b can be made of a flexible material, and the bottom surface of the adapter is provided with two positioning protrusions 421b extending downward, and two abutting walls 422b are located on the left and right sides of the positioning protrusions 421b, and the bottom surface of the abutting walls 422b is flush with the bottom surface of other parts of the adapter 42b and does not protrude downward. The two positioning protrusions 421b have a backward transition arc surface 4211b and a rear side surface 4212b, and the two abutting walls 422b have a relative transition arc surface 4221b and an inner side surface 4222b.

[0104] Fig.26 FIG. 4 shows the structure of the ink storage unit 40b when it is installed in the carrier box 90b. Fig.26As shown, the ink storage unit 40b is installed downward in the carrier box 90b with its length direction consistent with the carrier box 90b, the width direction also consistent with the carrier box 90b, and the adapter 42b of the ink storage unit 40b is located at the front side of the carrier box 90b, and the adapter 42b is located at the front side of the positioning boss 931b, and the front edge of the ink bag 41b can abut against the positioning boss 931b. The positioning boss 421b contacts the rear surface 9111b of the opening groove 911b, and the rear side surface 4212b of the positioning boss 421b abuts against the rear surface 911b. When the rear surface 9111b of the opening groove 911b contacts the transition arc surface 4211b, it slides along the transition arc surface 4211b until the rear side surface 4212b of the positioning boss 421b abuts against the rear surface 911b, so as to realize the positioning of the ink storage unit 40b in the length direction. At the same time, the two abutting walls 422b are in contact with the two side surfaces of the protrusion 912b, and the inner side surfaces 4222b of the two abutting walls 422b are in contact with the two side surfaces of the protrusion 912b, and when the side surface of the protrusion 912b contacts the transition arc surface 4221b, it will slide along the transition arc surface 4221b until the inner side surfaces 4222b of the two abutting walls 422b are in contact with the two side surfaces of the protrusion 912b, so as to realize the positioning and fixing of the ink storage unit 40b in the width direction. The front end surface of the adapter 42b can be in contact with the inner surface of the front wall 92b of the carrier box 90b to realize the fixing of the ink storage unit 40b in the length direction. After the ink storage unit 40b is installed in the carrier box 90b, the carrier box 90b and the ink storage unit 40b are installed into the inkjet printing device along the installation direction A.

[0105] In this embodiment, the entire adapter 42b is located on the front side of the positioning boss 931b of the carrier box 90b. Compared with the prior art in which a positioning groove is set on the adapter to cooperate with the positioning boss of the carrier box to achieve positioning, the adapter of this embodiment can be made smaller, thereby using less material, saving costs, and reducing the possibility of the adapter being contaminated with ink.

[0106] It is understandable that the above embodiments can be used together or combined to obtain a better positioning effect.

[0107] The embodiments of the utility model eliminate the positioning groove on the adapter for cooperating with the positioning boss of the carrier box, and adopt other positioning methods to realize the positioning of the ink storage unit on the carrier box, so that the structure of the adapter is simplified and miniaturized, which saves materials and is not easily contaminated by ink.

[0108] Although the present invention is disclosed as above with preferred embodiments, it is not intended to limit the scope of the present invention. Any person skilled in the art can make some improvements without departing from the scope of the present invention, that is, any changes or improvements made according to the present invention should be covered by the protection scope of the present invention.

Claims

1. An ink storage unit, comprising an ink bag for storing ink and an adapter installed at the front end of the ink bag, which is installed in an inkjet printer through a carrier box, wherein the width direction of the ink storage unit is the width direction of the carrier box, and the length direction of the ink storage unit is the length direction of the carrier box, and the installation direction of the ink storage unit in the inkjet printer is parallel to the length direction; the carrier box comprises a front wall located at the front side along the installation direction, a rear wall located at the rear side, side walls located at both sides along the width direction, and a bottom wall connected to the front wall, the rear wall and the side walls; positioning bosses are respectively provided on both sides of the carrier box along the width direction, and the positioning bosses are located at the front side of the carrier box along the installation direction, characterized in that: Along the installation direction, the front side of the adapter abuts against the front wall to achieve the positioning of the adapter in the length direction; the main body of the adapter is located between the positioning boss and the front wall; The two sides of the adapter are respectively in contact with parts of the side surfaces of the positioning boss or the two sides of the adapter are respectively in contact with the side walls to achieve positioning of the adapter in the width direction.

2. The ink storage unit according to claim 1, characterized in that: Corners are arranged on both sides of the adapter, and the corners abut against the side surfaces.

3. The ink storage unit according to claim 1, characterized in that: The adapter is provided with planes on both sides along the width direction, respectively, and the planes abut against parts of the side surfaces of the positioning bosses.

4. The ink storage unit according to claim 1, characterized in that: Positioning plates are respectively arranged on both sides of the adapter along the width direction, and two outer ends of the positioning plates along the width direction are respectively abutted against the side walls.

5. The ink storage unit according to claim 1, characterized in that: A positioning portion extending along the length direction is formed on the adapter, and the positioning portion abuts against the rear wall.

6. The ink storage unit according to claim 1, characterized in that: Both sides of the adapter along the width direction are respectively in contact with parts of the side surfaces of the positioning boss or with the side walls of the carrying box.

7. An ink storage unit for supplying ink to an inkjet printing device, wherein the ink storage unit needs to be installed in a carrier box of the inkjet printing device, and then the carrier box is pushed along an installation direction so that the carrier box and the ink storage unit are installed in the inkjet printing device, the installation direction is consistent with the length direction of the carrier box and the ink storage unit, the width direction of the carrier box is consistent with the width direction of the ink storage unit, and the carrier box is provided with a positioning boss on the front side of the installation direction, characterized in that: The ink storage unit includes an adapter and an ink bag. Along the installation direction, the adapter is arranged on the front side of the positioning boss. An opening groove is arranged on the front wall and the bottom wall of the carrier box. The adapter is provided with a positioning protrusion extending downward, and the positioning protrusion abuts against the side wall of the opening groove.

8. The ink storage unit according to claim 7, characterized in that: The positioning protrusions include a rear positioning protrusion and a lateral positioning protrusion, and the rear positioning protrusion and the lateral positioning protrusion have bottom surfaces located in the same plane.

9. The ink storage unit according to claim 7, characterized in that: The adapter also includes abutment walls, which are located on the left and right sides of the positioning protrusion, and the bottom surface of the abutment walls is flush with the bottom surface of other parts of the adapter and does not protrude downward.

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