CN216101073U - Ink box - Google Patents

Abstract

The utility model relates to an ink box, which can be installed in an ink-jet printer provided with a locking piece and comprises a bottom case formed with a storage cavity and a movable piece arranged on the bottom case, wherein the movable piece comprises a main body part and an acting part which are combined with each other, and the acting part can move between a first position combined with the locking piece and a second position separated from the locking piece; the first position is farther from the bottom case than the second position along the up-down direction; when the acting portion is located at the first position, the ink cartridge is locked in the ink jet printer; when the action portion is located the second position, the ink horn can be taken out from the inkjet printer, and the moving part can be when receiving decurrent pressing force down the motion to relieve the locking between moving part and the locking piece, thereby promote user's use and experience, and the mounted position and the required precision of moving part are reduced.

Description

Ink box

Technical Field

The utility model relates to the field of ink-jet imaging, in particular to an ink box for an ink-jet printer.

Background

In order to prevent the ink cartridge from being withdrawn from the ink jet printer, a force-bearing surface is provided in the ink cartridge, a force-pushing surface is provided in the ink jet printer, the force-pushing surface is a surface of a rotating member rotatably installed in the ink jet printer, and when the ink cartridge is installed to a predetermined position, the force-pushing surface is opposite to the force-bearing surface, the ink cartridge is locked, and the withdrawal is prevented.

To remove the ink cartridge, the following two methods are available: the first mode is that a rod which can rotate around a shaft is arranged in the ink box, when the ink box needs to be taken out, an end user presses one end of the rod, and the other end of the rod lifts the rotating piece, so that the locking of the forced pushing surface and the stressed surface is released; and the other end of the push rod lifts the rotating piece, so that the pushing surface and the stress surface are contacted and locked.

The installation position and the size precision of above-mentioned mode one pair pole have proposed higher requirement, push rod need be forced along the direction syntropy with the installation direction of ink horn in the mode two, and current ink horn is when removing the locking of forcing face and atress face, be towards the direction perpendicular with ink horn installation direction, more accurate say, exert forcing thrust towards the below of ink horn, it is thus obvious, the atress direction of push rod is different with current ink horn in the mode two, this will lead to the change of end user's use habit, be unfavorable for promoting end user's use experience.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides an ink cartridge, wherein a movable member is disposed to be able to release locking between a forced pushing surface and a forced surface by applying a forced pushing force to a lower portion of the ink cartridge, and requirements for a mounting position and dimensional accuracy of the movable member are both greatly reduced, and the specific scheme is as follows:

an ink cartridge including a bottom case formed with a storage chamber and a movable member provided on the bottom case, the ink cartridge being mountable to an ink jet printer provided with a locking member, the movable member including a main body portion and an acting portion that are combined with each other, the acting portion being movable between a first position combined with the locking member and a second position disengaged from the locking member; the first position is farther from the bottom case than the second position along the up-down direction; when the acting portion is located at the first position, the ink cartridge is locked in the ink jet printer; when the working portion is in the second position, the ink cartridge can be removed from the ink jet printer.

The ink cartridge further includes an elastic member coupled to the movable member, the elastic member being for urging the movable member toward the first position.

The ink horn is still including the preceding curb plate that is located the place ahead, the last curb plate that is located the top, the lower plate that is located the below, the posterior lateral plate that is located the rear and be located the ink outlet on the preceding curb plate and the chip installation department that is located the curb plate top, preceding curb plate, posterior lateral plate, last curb plate and lower curb plate enclose and form the storage chamber, the ink outlet is close to the lower plate setting.

Along the fore-and-aft direction, form the activity chamber between chip installation department and the posterior lateral plate, the moving part is installed in the activity chamber.

The moving part includes the connecting plate and is located stress section and the effect portion of connecting plate both sides, and the connecting plate extends along the fore-and-aft direction, and stress section is used for receiving outside pressing force, and the effect portion is used for combining with the locking piece, and the effect portion can be along with stress section is pressed and is moved.

As one of the embodiments of the movable member, the movable member is integrally formed, and when the force receiving portion receives a downward pressing force in a posture in which the ink cartridge is mounted to the ink jet printer, the acting portion also moves downward to be disengaged from the locking member.

As a second embodiment of the movable member, the movable member is formed separately, the acting portion is formed with the force receiving portion, and the acting portion is disengaged from the locking member by moving in the front-rear direction when the force receiving portion receives a downward pressing force when the ink cartridge is in a posture in which the ink cartridge is mounted to the ink jet printer.

As a third embodiment of the movable member, a movable member is formed separately, and the acting portion is formed with a force receiving portion, and the acting portion is disengaged from the locking member by moving in the left-right direction when the force receiving portion receives a downward pressing force when the ink cartridge is in a posture of being mounted to the ink jet printer.

As described above, the movable member is movable between a first position away from the bottom case and a second position close to the bottom case, and in the first position, the movable member is engaged with the locking member in the inkjet printer to lock the ink cartridge, and in the second position, the movable member is disengaged from the locking member, so that it can be seen that the movable member is movable downward when it receives a downward pressing force, and the locking between the movable member and the locking member is released, thereby improving the user experience, and the mounting position and accuracy requirements of the movable member are lowered.

Drawings

Fig. 1 is a partially exploded view of an ink cartridge according to an embodiment of the present invention.

Fig. 2 is a perspective view of a movable member in the ink cartridge according to an embodiment of the present invention.

Fig. 3A is a schematic diagram of the relative position of a movable member in an ink cartridge and a rotatable member in an ink jet printer when the ink cartridge according to an embodiment of the present invention is locked.

Fig. 3B is a schematic diagram illustrating a relative position between a movable member in the ink cartridge and a rotatable member in the ink jet printer when the ink cartridge according to an embodiment of the present invention is unlocked.

Fig. 4 is a side view of the movable member in the ink cartridge according to the second embodiment of the present invention.

Fig. 5 is a perspective view of the ink cartridge according to the second embodiment of the present invention after hiding the face cover and the movable member.

Fig. 6A is a schematic view showing the relative positions of the movable member in the ink cartridge and the rotatable member in the ink jet printer when the ink cartridge according to the second embodiment of the present invention is locked.

Fig. 6B is a schematic view showing the relative positions of the movable member in the ink cartridge and the rotatable member in the ink jet printer when the ink cartridge according to the second embodiment of the present invention is unlocked.

Detailed Description

Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[ example one ]

FIG. 1 is a partially exploded schematic view of an ink cartridge according to an embodiment of the present invention; fig. 2 is a perspective view of a movable member in the ink cartridge according to an embodiment of the present invention. For the sake of clarity of the following description, the mounting direction of the ink cartridge according to the present invention is defined as a front-rear direction, the height direction of the ink cartridge is an up-down direction, and the width direction is a left-right direction, and the ink cartridge is mounted from the rear to the front in the front-rear direction.

As shown in the figure, the ink cartridge 1 includes a bottom case 2 and a cover 3 combined with each other, and an ink outlet 22 and a chip mounting portion 23 provided on the bottom case 2, defining therebetween a storage chamber 21 accommodating ink supplied to the outside (inkjet printer) through the ink outlet 22, and a chip mounted in the chip mounting portion 23, and when the ink cartridge 1 is mounted to the inkjet printer, the ink cartridge 1 establishes a communication connection with the inkjet printer through the chip.

Further, when the ink cartridge 1 is in the mounted posture, the ink cartridge 1 further includes an upper side plate 2b located above, wherein the ink outlet 22 is provided on the front side plate 2a of the bottom case and is close to the lower side plate 2c, the chip mounting portion 23 is located above the upper side plate 2b, and at least a contact of the chip is located in the chip mounting portion 23, so that, in the up-down direction, the chip mounting portion 23 and the ink outlet 22 are distant from each other, an influence of vibration generated when the ink is sucked by the ink jet printer through the ink outlet 22 on communication connection between the chip mounted in the chip mounting portion 23 and the ink jet printer is reduced, and at the same time, a small amount of ink leaked from the ink outlet 22 does not splash onto the chip contact, and short circuit of the chip can be avoided.

The ink cartridge 1 further includes a movable member 4 movable in an up-down direction, and an elastic member 7 located between the movable member 4 and the bottom case 2, wherein the elastic member 7 is configured to urge the movable member 4 in a direction (upward) away from the bottom case 2. The movable member 4 is used for combining with a locking member 5 (shown in fig. 3A) in the ink-jet printer to prevent the ink cartridge 1 from being withdrawn from the ink-jet printer in a backward direction, and when the ink cartridge 1 needs to be taken out, a user applies an acting force downwards to the movable member 4 so as to release the combination of the movable member 4 and the locking member 5; as shown in the drawing, the ink cartridge 1 further includes a movable chamber 24 formed between the chip mounting portion 23 and the bottom case rear side plate 2d in the front-rear direction, the movable chamber 24 being located above the upper side plate 2b, that is, the movable member 4 is movable outside the bottom case 2 without mounting the movable member 4 into the ink chamber 21, thereby simplifying the assembly process of the ink cartridge 1.

Further, the ink cartridge 1 further includes an auxiliary guide surface 25 disposed adjacent to the movable member 4, and the locking member 5 is guided by the auxiliary guide surface 25 during the removal of the ink cartridge 1, so that the ink cartridge 1 can be smoothly removed, the auxiliary guide surface 25 being described in detail later.

As shown in fig. 2, the movable member 4 includes a connecting plate 41, a force receiving portion 42 and an acting portion 43 respectively located at two sides of the connecting plate 41, the connecting plate 41 extends in the front-rear direction, the force receiving portion 42 is used for receiving an external pressing force, the acting portion 43 is used for combining with the locking member 5, and the acting portion 43 primarily guides the locking member 5 during the process of taking out the ink cartridge 1, so that the locking member 5 can smoothly reach the auxiliary guide surface 25.

Specifically, the acting portion 43 is a plate-shaped member extending upward from the connecting plate 41, and has a front guided surface 433 located in front, a force-bearing surface 434 located in back, and a main guide surface 431 located above, the main guide surface 431 is inclined in such a way that a front end 431a of the main guide surface 431 is farther from the connecting plate 41 than a back end 431b, or the front end 431a is higher than the back end 431b, the front end 431a is adjacent to the front guided surface 433, and the back end 431b is adjacent to the force-bearing surface 434.

In order to ensure the stable movement track of the movable member 4, as shown in the figure, the movable member 4 further includes a guiding mechanism to ensure that the entire movable member 4 can move in the up-down direction, in this embodiment, the guiding mechanism includes a first guiding protrusion 44 and a second guiding protrusion 45, wherein one end of the elastic member 7 abuts against the first guiding protrusion 44, the other end abuts against the bottom case 2, the second guiding protrusion 45 is guided by a guiding groove provided on the bottom case 2, and conversely, the guiding groove may also be provided on the movable member 4, and the guiding protrusion may also be provided on the bottom case 2; it can be realized that the first guide projection 44 and the second guide projection 45 are not required to be provided, one end of the elastic member 7 is directly abutted against the connecting plate 41, and the movable member 4 is integrally guided by the contact of the left and right sides or the front and rear sides thereof with the bottom case 2. In order to prevent the movable member 4 from being detached from the bottom case 2, it is preferable that the movable member 4 further includes a stopper portion 432, and as shown in fig. 2, the stopper portion 432 is a protrusion protruding from the front guided surface 433.

FIG. 3A is a schematic view of the relative position of a movable member in the ink cartridge and a rotatable member in the ink jet printer when the ink cartridge according to one embodiment of the present invention is locked; fig. 3B is a schematic diagram illustrating a relative position between a movable member in the ink cartridge and a rotatable member in the ink jet printer when the ink cartridge according to an embodiment of the present invention is unlocked.

The locking member 5 includes a pushing portion 51 and a rotating portion 52 connected to each other, the pushing portion 51 being configured to abut against the movable member 4, and the rotating portion 52 being configured to enable the locking member 5 to rotate about point P. As shown in fig. 3A, when the ink cartridge 1 is mounted to a predetermined position of the ink jet printer, the urging surface 511 of the urging portion 51 abuts against the force receiving surface 434 of the movable piece 4, and the ink cartridge 1 is locked in the front-rear direction so as not to be able to retreat rearward. At this time, the movable member 4 is in the first position pushed away from the bottom case 2 by the elastic member 7, at least a part of the main guide surface 431 is located above the lowest point of the auxiliary guide surface 25, in other words, at least one of the front end 431a and the rear end 431b is located above the lowest point of the auxiliary guide surface 25, and the locking member 5 does not enter the auxiliary guide surface 25; the limiting portion 432 of the movable member 4 abuts against the bottom case 2, and the movable member 4 is stably held on the bottom case 2.

When the ink cartridge 1 needs to be taken out, a user applies acting force to the force bearing part 42 from top to bottom along the up-down direction, the whole movable element 4 starts to move downwards, the elastic element 7 starts to generate elastic deformation, the acting part 43 starts to move downwards along with the whole movable element 4, the contact area between the force bearing surface 434 and the pushing surface 511 is smaller and smaller in the up-down direction, as shown in fig. 3B, when the force bearing surface 434 is separated from the pushing surface 511, the pushing part 51 passes through the rear end 431B and enters the main guide surface 431, when the movable element 4 continues to move downwards until the front end 431a is flush with the lowest point of the auxiliary guide surface 25, the movable element 4 reaches the second position close to the bottom shell 2, the pushing part 51 starts to enter the auxiliary guide surface 25, the locking between the movable element 4 and the locking element 5 is completely released, the user can grasp the pushing force of the ink cartridge to move backwards, or push the ink cartridge 1 backwards by using the pushing force of the pushing spring installed in the ink cartridge 1, generally, the urging spring is installed in front of the ink cartridge 1, and is compressively deformed when the ink cartridge 1 is installed. In the process of the ink cartridge 1 moving backwards, the acting force applied to the force-receiving portion 42 is cancelled, and the movable member 4 starts to move upwards as a whole under the elastic restoring force of the elastic member 7, or the movable member 4 starts to move towards the first position from the second position, so that the urging portion 51 is urged upwards by the upwardly moving acting portion 43 while being guided by the auxiliary guide surface 25, and gradually moves away from the bottom case 2 until the urging portion 51 reaches the uppermost point of the auxiliary guide surface 25, and thereafter, the ink cartridge 1 can be taken out smoothly without being interfered by the urging portion 51 in the process of continuing the backwards movement.

Preferably, a front guide surface 26 combined with the front guided surface 433 is further provided adjacent to the auxiliary guide surface 25, and at the same time, mutually guided surfaces are also provided on the force receiving portion 42 and on the bottom case 2 adjacent to the force receiving portion 42 in the front-rear direction, and the front guide surface 26, the front guided surface 433, and the mutually guided surfaces provided on the force receiving portion 42 and the bottom case are all parallel to the up-down direction, so that the moving trajectory of the movable member 4 in the up-down direction is more stable.

[ example two ]

FIG. 4 is a side view of a movable member in the ink cartridge according to the second embodiment of the present invention; fig. 5 is a perspective view of the ink cartridge according to the second embodiment of the present invention after hiding the face cover and the movable member.

In practice, if the size of the movable cavity 24 in the front-back direction is large, or the size of the connecting plate 41 of the movable member 4 in the front-back direction is large, based on the angles shown in fig. 3A and 3B, when the force-receiving portion 42 receives a downward force, the movable member 4 may slightly rotate clockwise around the first guiding protrusion 44 as a whole, or a part between the first guiding protrusion 44 and the force-receiving portion 42 may slightly bend clockwise relative to a part between the first guiding protrusion 44 and the acting portion 43, which is unfavorable for the transmission of the force in the movable member 4, and for this reason, the present embodiment improves the movable member 4 and the matching portion of the bottom case 2 and the movable member 4, and the same parts as those in the first embodiment will be cited in the present embodiment.

As shown in fig. 4, the movable member 6 of the present embodiment includes a connecting plate 61, a force-receiving portion 62 and an acting portion 63 respectively located at two sides of the connecting plate 61, the connecting plate 61 extends in the front-rear direction, the force-receiving portion 62 is used for receiving an external pressing force, the acting portion 63 is used for combining with the locking member 5, and during the taking out of the ink cartridge 1, the acting portion 63 primarily guides the locking member 5, so that the locking member 5 can smoothly reach the auxiliary guide surface 25.

Similarly, the acting portion 63 extends upward from the connecting portion 61, and has a front guided surface 633 at the front, a force bearing surface 634 at the rear, and a main guiding surface 631 at the upper side, the main guiding surface 631 is inclined, and the inclination direction of the main guiding surface 631 can be described as that the front end 631a is farther from the connecting plate 61 than the rear end 631b, or the front end 631a is higher than the rear end 631b, the front end 631a is adjacent to the front guided surface 633, and the rear end 631b is adjacent to the force bearing surface 634. Meanwhile, a rear guided surface 621 is provided behind the force receiving portion 62 to be combined with a rear guide surface 27 (shown in fig. 5) provided on the bottom case 2.

As described above, to eliminate slight clockwise rotation of the movable member 6 during downward movement, the front guided surface 633 and the rear guided surface 621 are both provided to be inclined with respect to the up-down direction, the inclination directions thereof can be described as being, in the front-rear direction, the highest point/uppermost point of the front guided surface 633 located rearward of the lowest point/lowermost point, the highest point/uppermost point of the rear guided surface 621 located rearward of the lowest point/lowermost point, and accordingly, as shown in fig. 5, the front guide surface 26 combined with the front guided surface 633 and the rear guide surface 27 combined with the rear guided surface 621 also have the same inclination direction, that is, the highest point/uppermost point of the front guide surface 26 is located rearward of the lowest point/lowermost point, and the highest point/uppermost point of the rear guide surface 27 is located rearward of the lowest point/lowermost point.

Preferably, the movable member 6 further includes a guide mechanism including a first guide protrusion 64 and a second guide protrusion 65, one end of the elastic member 7 is combined with the first guide protrusion 64, the other end is combined with the bottom case 2, the second guide protrusion 65 is guided by a guide groove provided on the bottom case 2, and conversely, the guide groove may be provided on the movable member 6, and the guide protrusion may be provided on the bottom case 2; more preferably, the first guide protrusion 64 and the second guide protrusion 65 are also disposed to be inclined with respect to the up-down direction, respectively, in the same direction as the inclined direction of the front guided surface 633 and the rear guided surface 621, so that the front guided surface 633, the first guide protrusion 64, the second guide protrusion 65, and the rear guided surface 621 are substantially parallel to each other; further, the movable piece 6 further includes a support portion 67 provided between the first guide projection 64 and the force receiving portion 62, the support portion 67 extending in the front-rear direction and being inclined with respect to the front-rear direction, and the direction of inclination thereof can be described as being forward of the support portion 67 and upward of the rear.

The structure of the upper side panel 2b of the bottom case 2 in the present embodiment is changed accordingly, as shown in fig. 5, the upper side panel 2b includes a first panel 2b1 and a second panel 2b2 connected to each other, the first panel 2b1 is parallel to the front-rear direction, the second panel 2b2 is inclined with respect to the front-rear direction, and the inclination direction thereof can be described as that, along the front-rear direction, the second panel 2b2 gradually approaches the lower side panel 2c from front to rear, or, along the up-down direction, the first panel 2b1 is a first distance from the lower side panel 2c, the end of the second panel 2b2 close to the first panel 2b1 is a second distance from the lower side panel 2c, and the end of the second panel 2b2 far from the first panel 2b1 is a third distance from the lower side panel 2c, the first distance and the second distance are substantially the same, and the third distance is the smallest.

FIG. 6A is a schematic view showing the relative positions of a movable member in the ink cartridge and a rotatable member in the ink jet printer when the ink cartridge according to the second embodiment of the present invention is locked; fig. 6B is a schematic view showing the relative positions of the movable member in the ink cartridge and the rotatable member in the ink jet printer when the ink cartridge according to the second embodiment of the present invention is unlocked.

As shown in fig. 6A, when the ink cartridge 1 is mounted, the movable member 6 is in the first position away from the bottom case 2 under the urging force of the elastic member 7, and at this time, the ink cartridge 1 can be engaged with the locking member 5, specifically, the force-bearing surface 634 is engaged with the urging surface 511 of the urging portion 51, and the ink cartridge 1 is restricted from being withdrawn backward in the front-rear direction.

When the ink cartridge 1 needs to be taken out, the user presses the force receiving portion 62 downward, and even if the movable element 6 may have a clockwise tilting rotation due to the guiding action of the front guide surface 26, the front guided surface 633, the rear guided surface 621, and the rear guide surface 27 which are tilted with respect to the up-down direction, which are described above, due to the large size of the movable element 6 in the front-rear direction, the above-described slightly tilting rotation action of the movable element 6 is prevented by the above-described respective guide surfaces, and the trajectory of the entire movement of the movable element 6 in the up-down direction is precisely controlled until the movable element 6 reaches the second position shown in fig. 6B, at which time, the front end 631a of the main guide surface 631 reaches a position flush with the lowermost point of the auxiliary guide surface 25, and the urging portion 51 may reach the auxiliary guide surface 25 from the main guide surface 631. The process of disengaging the locking member 5 from the ink cartridge 1 is the same as in the first embodiment, and will not be described again.

It will be appreciated that movable member 4/6 is preferably integrally formed, however, movable member 4/6 may be formed separately, e.g., active portion 43/63 may be provided separately from the other components of movable member 4/6 to increase the strength of active portion 43/63 and the other components of movable member 4/6, which interact via force transfer mechanisms.

[ third example ]

The above embodiment describes the action portion 43/63 of the movable piece 4/6 moving in the up-down direction to release the lock with the lock 5, however, the action portion 43/63 may also be arranged to move in the front-back direction to release the lock with the lock 5 if the space of the ink cartridge 1 allows.

Taking the movable element 4 as an example, for example, the acting portion 43 and a main body portion (including components other than the acting portion 43) of the movable element 4 are relatively movable and formed separately, and at this time, the main body portion and the acting portion 43 interact with each other through a force transmission mechanism, and when the ink cartridge 1 is mounted to the ink jet printer, the acting portion 43 is located at the first position and abuts against the urging portion 51, and the ink cartridge 1 is locked; when the ink cartridge 1 needs to be taken out, the user applies a force downward to the force receiving portion 42, then the force is transmitted to the acting portion 43 through the force transmitting mechanism to push the acting portion 43 in the front-rear direction, so that the acting portion 43 reaches the second position out of abutment with the urging portion 51, and finally, as the ink cartridge 1 moves rearward, the urging portion 51 is guided by the auxiliary guide surface 25.

[ example four ]

In this embodiment, the operating portion 43/63 of the movable member 4/6 is provided so as to be movable in the left-right direction to release the lock with the lock member 5. Still taking the movable element 4 as an example, the acting portion 43 and the main body portion (including components other than the acting portion 43) of the movable element 4 can move relatively, and the acting portion 43 and the main body portion are formed separately, and a force transmission mechanism is still provided between the acting portion and the main body portion.

When the ink cartridge 1 is mounted to the ink jet printer, the action portion 43 is located at the first position abutting against the urging portion 51, and the ink cartridge 1 is locked; when the ink cartridge 1 needs to be taken out, the user applies an acting force downward to the force receiving portion 42, then the acting force is transmitted to the acting portion 43 through the force transmitting mechanism to push the acting portion in the left-right direction, so that the acting portion 43 reaches the second position out of abutment with the urging portion 51, and finally, as the ink cartridge 1 moves rearward, the urging portion 51 is guided by the auxiliary guide surface 25.

As is clear from the above description, the elastic member 7 is not an essential component of the ink cartridge 1, and when the operating portion 43/63 reaches the second position, the movable member 4/6 is already unlocked/disengaged from the locking member 5, and it is not important whether the movable member 43/63 returns to the first position, and even without the elastic member 7, the user can manually return the movable member 43/63 to the first position when taking out and retracting the ink cartridge 1; it should be noted that, in contrast to the situation where the action portion 43/63 is fixedly disposed on the bottom case 2, the action portion 43/63 of the present invention is disposed to be movable relative to the bottom case 2, so as to ensure more complete unlocking between the movable member 4/6 and the locking member 5,

as described above, the force receiving portion 42/62 of the movable member 4/6 of the present invention can receive downward force applied by the user, and under the force, the movable member 4/6 is unlocked/disengaged from the latch 5 in the inkjet printer, the original use manner of the user is not changed, and the movable member 4/6 only needs to be installed to the movable chamber 24, and the installation position and dimensional accuracy thereof are not strictly limited.

Claims (8)

1. An ink cartridge including a bottom case formed with a storage chamber and a movable member provided on the bottom case, the ink cartridge being mountable to an ink jet printer provided with a locking member,

the movable piece comprises a main body part and an acting part which are combined with each other, and the acting part can move between a first position combined with the locking piece and a second position disengaged from the locking piece;

the first position is farther from the bottom case than the second position along the up-down direction;

when the acting portion is located at the first position, the ink cartridge is locked in the ink jet printer; when the working portion is in the second position, the ink cartridge can be removed from the ink jet printer.

2. The ink cartridge as claimed in claim 1, further comprising an elastic member coupled to the movable member, the elastic member being configured to urge the movable member toward the first position.

3. The ink box according to claim 1 or 2, wherein the ink box further comprises a front side plate located in front, an upper side plate located above, a lower side plate located below, a rear side plate located behind, an ink outlet located on the front side plate, and a chip mounting portion located above the upper side plate, the front side plate, the rear side plate, the upper side plate and the lower side plate enclose to form a storage cavity, and the ink outlet is arranged close to the lower side plate.

4. The ink cartridge as claimed in claim 3, wherein a movable chamber is formed between the chip mounting portion and the rear side plate in the front-rear direction, the movable member being mounted in the movable chamber.

5. The ink cartridge as claimed in claim 4, wherein the movable member includes a connecting plate extending in a front-rear direction, and a force receiving portion and an acting portion located at both sides of the connecting plate, the force receiving portion being adapted to receive an external pressing force, the acting portion being adapted to be engaged with the locking member, and the acting portion being movable as the force receiving portion is pressed.

6. The ink cartridge as claimed in claim 5, wherein the movable member is integrally formed, and when the force receiving portion receives a downward pressing force in a posture in which the ink cartridge is mounted to the ink jet printer, the acting portion also moves downward to be disengaged from the locking member.

7. The ink cartridge as claimed in claim 5, wherein a movable member is formed separately, the acting portion is formed with a force receiving portion, and the acting portion is disengaged from the locking member by moving in a front-rear direction when the force receiving portion receives a downward pressing force when the ink cartridge is in a posture of being mounted to the ink jet printer.

8. The ink cartridge as claimed in claim 5, wherein a movable member is formed separately, the acting portion is formed with a force receiving portion, and the acting portion is disengaged from the locking member by moving in a left-right direction when the force receiving portion receives a downward pressing force when the ink cartridge is in a posture of being mounted to the ink jet printer.

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