CN-224210781-U - Ink cartridge

Abstract

The utility model relates to an ink cartridge detachably mounted in an image forming apparatus, the ink cartridge comprising a cartridge body formed with an ink chamber for accommodating ink, the ink cartridge further comprising a locking portion provided at the cartridge body, the locking portion abutting against the image forming apparatus in a state in which the ink cartridge is mounted to the image forming apparatus to cause the ink cartridge to be locked in the image forming apparatus, the locking portion abutting against the image forming apparatus in a state in which the ink cartridge is mounted to the image forming apparatus to restrict the ink cartridge from exiting the image forming apparatus, the ink cartridge no longer depending on the restricting member when locked in the cartridge mounting portion, or both accuracy requirements and sensitivity requirements for the restricting member can be reduced when abutting against the restricting member is required.

Inventors

• FAN WENYI
• Request for anonymity

Assignees

• 珠海鼎绘科技有限公司

Dates

Publication Date

20260508

Application Date

20250419

Priority Date

20240419

Claims (10)

1. 1. An ink cartridge detachably mountable to an image forming apparatus, said ink cartridge including a cartridge body formed with an ink chamber for containing ink, characterized in that, The ink cartridge further includes a locking portion provided at the cartridge body, the locking portion abutting the image forming apparatus in a state where the ink cartridge is mounted to the image forming apparatus so that the ink cartridge is locked in the image forming apparatus; The locking portion abuts the image forming apparatus in a state where the cartridge is mounted to the image forming apparatus to restrict the cartridge from exiting the image forming apparatus.
2. 2. The ink cartridge according to claim 1, wherein the image forming apparatus includes a cartridge mounting portion for accommodating the ink cartridge, the cartridge mounting portion having a cartridge mounting opening opened toward the rear, and the cartridge mounting portion being further provided with an ink suction needle, a stopper, an electric contact pin assembly and a stopper member, the ink cartridge being mounted from the cartridge mounting opening toward the cartridge mounting portion, the electric contact pin assembly being located above the ink suction needle in an up-down direction and in front of the stopper member, the electric contact pin assembly including at least an electric contact pin for electrical connection with the ink cartridge, the stopper member being provided to be rotatable around the stopper; the ink box also comprises an ink outlet part combined with the box body, wherein the ink outlet part is provided with an ink outlet which faces to the front and is used for being combined with an ink suction needle so as to supply ink to the imaging equipment; The cartridge body has an upper side wall facing upward, the upper side wall being located above the ink chamber in the up-down direction, the locking portion protruding from the upper side wall, and the locking portion being abutted with the electrical contact pin assembly or the stopper member in a state in which the ink cartridge is mounted to the image forming apparatus.
3. 3. The ink cartridge according to claim 2, wherein the stopper member has a first stopper surface, a second stopper surface, and a third stopper surface which are provided in this order from the rear to the front, the first stopper surface and the second stopper surface each facing at least downward in a state in which the ink cartridge is mounted to the image forming apparatus, the third stopper surface facing forward, and the locking portion abutting against the third stopper surface.
4. 4. The ink cartridge according to claim 3, wherein the locking portion includes a pressing surface, a connecting surface, an unlocking surface, and a locking surface provided in this order from front to back, the connecting surface connecting the pressing surface and the locking surface; In the process that the ink box is installed towards the ink box installation part, the extrusion surface is abutted with the first limiting surface, the limiting member is pushed to rotate around the limiting piece in the direction r1, in the process that the ink box is taken out from the ink box installation part, the unlocking surface is used for pushing the limiting member to rotate around the limiting piece again in the direction r1, and the locking surface is abutted with the third limiting surface.
5. 5. The ink cartridge according to claim 2, wherein the stopper member has a sixth stopper surface, a first stopper surface, a second stopper surface, and a third stopper surface which are provided in this order from the rear to the front, the first stopper surface and the second stopper surface are each at least facing downward in a state in which the ink cartridge is mounted to the image forming apparatus, the third stopper surface and the sixth stopper surface are each facing forward, the first stopper surface, the second stopper surface, and the third stopper surface are located in front of the stopper, the sixth stopper surface is located behind the stopper, and the locking portion abuts against the sixth stopper surface.
6. 6. The ink cartridge according to claim 2, wherein the stopper member has a sixth stopper face, a seventh stopper face, a first stopper face, a second stopper face, and a third stopper face, each of the first stopper face and the second stopper face faces at least downward in a state in which the ink cartridge is mounted to the image forming apparatus, each of the third stopper face, the sixth stopper face, and the seventh stopper face faces forward, and the first stopper face, the second stopper face, and the third stopper face are located forward of the stopper, the sixth stopper face and the seventh stopper face are located rearward of the stopper, the seventh stopper face is located below the sixth stopper face, and the locking portion abuts against the seventh stopper face.
7. 7. The ink cartridge according to claim 6, wherein the locking portion includes two abutment members provided at an interval in a left-right direction, between which the escape groove is formed; The ink cartridge further comprises a chip component provided with an electric contact part, wherein the electric contact part is used for being electrically connected with the electric contact pin, the electric contact part is positioned in front of the locking part, and the abutting piece is positioned above the chip component in the up-down direction; the extending direction of the abutting piece is offset from the electric contact portion in the left-right direction.
8. 8. The cartridge according to claim 2, wherein the electrical contact pin assembly includes a substrate for disposing the electrical contact pins, and the locking portion abuts against a front wall surface of the substrate in a state in which the cartridge is mounted to the image forming apparatus.
9. 9. The ink cartridge according to claim 1, wherein the image forming apparatus includes a cartridge mounting portion for accommodating the ink cartridge, the cartridge mounting portion having an ink suction needle, a sixth interference portion, and a cartridge mounting opening opened toward the rear, the ink cartridge being mounted from the cartridge mounting opening toward the cartridge mounting portion, the sixth interference portion being located below the ink suction needle in the up-down direction; The ink cartridge further includes a front side wall facing forward and an ink outlet portion coupled to the cartridge body, the ink outlet portion protruding forward from the front side wall and coupled to the ink suction needle to supply ink to the image forming apparatus; the locking portions are provided in two opposing in the left-right direction, and the sixth interference portion enters between the two locking portions in a state where the ink cartridge is mounted to the image forming apparatus.
10. 10. The ink cartridge according to claim 1, wherein the image forming apparatus includes a cartridge mounting portion for accommodating the ink cartridge, the cartridge mounting portion having an ink suction needle and a cartridge mounting opening opened toward the rear, the ink cartridge being mounted from the cartridge mounting opening toward the cartridge mounting portion, a mounting portion bottom wall of a lower side of the cartridge mounting portion being provided with a recess; The ink cartridge further comprises an ink outlet part combined with the cartridge body, the ink outlet part is provided with an ink outlet opening facing the front, the ink outlet opening is used for being combined with the ink suction needle to supply ink to the image forming device, the locking part comprises a pressing part, a transmission part and an abutting part, the pressing part is used for controlling unlocking between the ink cartridge and the cartridge mounting part, the abutting part is arranged to be a protrusion matched with the groove, and the transmission part is arranged between the pressing part and the abutting part.

Description

Ink cartridge The present utility model claims priority from application day 2024, month 04, 19, under the name "ink cartridge", application No. 202420829646.X, application day 2024, month 04, 19, under the name "ink cartridge", application No. 202420827841.9, application day 2024, month 04, 24, under the name "ink cartridge", application No. 202420872812.4, all of which are cross-referenced in the present utility model. Technical Field The present utility model relates to the field of inkjet imaging, and more particularly to an ink cartridge for an inkjet imaging apparatus. Background Patent US9358798B2 discloses an ink cartridge which is fixed to the cartridge mounting portion 112 by the principle that the cartridge mounting portion 112 is provided with a locking member 145 (fig. 6) rotated by an elastic member, and during the mounting of the ink cartridge (fig. 7 to 8), the upper surface of the ink cartridge is abutted against the locking member 145 and forced to rotate until the locking member 145 abuts against an engagement surface 46 (fig. 9) on the upper side of the ink cartridge, so that the force of the cartridge mounting portion pushing the ink cartridge can be offset. When the ink cartridge is removed from the cartridge mounting portion 112, the handle 80 (fig. 8) may be driven to rotate the locking member 145, thereby forcing the locking member 145 to release the abutment with the ink cartridge engagement surface 46. The above-described cartridge mounting portion 112 may be aged by the locking member 145 or the elastic member applying elastic force thereto after being mounted and dismounted several times of the cartridge, resulting in poor fixing effect or failure of fixing the cartridge. In addition, the impact force between the ink cartridge and the ink cartridge mounting portion 112 may damage the chip provided in the ink cartridge during the mounting of the ink cartridge to the ink cartridge mounting portion 112. Disclosure of utility model The utility model provides an ink box for solving at least one of the technical problems, which comprises the following specific scheme: The ink cartridge detachably mountable to the image forming apparatus, the ink cartridge including a cartridge body formed with an ink chamber containing ink, the ink cartridge further including a locking portion provided at the cartridge body, the locking portion abutting the image forming apparatus in a state in which the ink cartridge is mounted to the image forming apparatus so that the ink cartridge is locked in the image forming apparatus, the locking portion abutting the image forming apparatus in a state in which the ink cartridge is mounted to the image forming apparatus so as to restrict the ink cartridge from exiting the image forming apparatus. In some embodiments, the image forming apparatus includes a cartridge mounting portion for accommodating the ink cartridge, the cartridge mounting portion having a cartridge mounting port opened rearward, and the cartridge mounting portion further provided with an ink suction needle, a stopper, an electric contact pin assembly and a stopper member, the ink cartridge being mounted from the cartridge mounting port toward the cartridge mounting portion in an up-down direction, the electric contact pin assembly being located above the ink suction needle and in front of the stopper member, the electric contact pin assembly including at least an electric contact pin for electrical connection with the ink cartridge, the stopper member being provided to be rotatable around the stopper member, the ink cartridge further including an ink outlet portion coupled to the cartridge body, the ink outlet portion having an ink outlet port opened forward, the ink outlet port for coupling with the ink suction needle to supply ink to the image forming apparatus, the cartridge body having an upper side wall directed upward, the upper side wall being located above the ink chamber, the locking portion protruding from the upper side wall, the locking portion being abutted against the electric contact pin assembly or the stopper member in a state in which the ink cartridge is mounted to the image forming apparatus. In some embodiments, the spacing member has a first spacing surface, a second spacing surface, and a third spacing surface that are disposed sequentially from back to front, the first and second spacing surfaces each facing at least downward in a state in which the ink cartridge is mounted to the image forming apparatus, the third spacing surface facing forward, and the locking portion abutting against the third spacing surface. In some embodiments, the locking part comprises a squeezing surface, a connecting surface, an unlocking surface and a locking surface which are sequentially arranged from front to back, wherein the connecting surface is connected with the squeezing surface and the locking surface, the squeezing surface is abutted with the first limiting surface in the process