CN216443318U

CN216443318U - Ink box

Info

Publication number: CN216443318U
Application number: CN202122789231.3U
Authority: CN
Inventors: 陈伟健; 邱涌群
Original assignee: Zhuhai Ninestar Management Co Ltd
Current assignee: Zhuhai Ninestar Management Co Ltd
Priority date: 2021-09-14
Filing date: 2021-11-15
Publication date: 2022-05-06
Anticipated expiration: 2031-11-15
Also published as: CN218505510U; CN115534526A; CN217917308U; CN217917306U; CN216443312U; CN217917310U

Abstract

The application discloses an ink cartridge, including casing and detachable install in liquid container in the casing, wherein: the shell is provided with a bearing surface for bearing the liquid accommodating body, and a limiting part is arranged on the bearing surface; the liquid containing body comprises a containing part, a connecting part and a limited part, wherein the containing part is used for containing liquid, the connecting part is respectively connected with the containing part and the limited part, the limited part and the limited part form limiting matching so as to limit the movement of the liquid containing body in a first direction and a second direction, and the first direction and the second direction are perpendicular to the projection on the bearing surface. This application is through spacing portion and the spacing cooperation that is formed by spacing portion, restriction the liquid container body is less than the ascending removal of first direction and second side at least, can guarantee the whole stable assembly in the casing of liquid container body, and then improves the contact stability of chip and printer electric connection portion.

Description

Ink box

Technical Field

The application relates to the technical field of printers, in particular to an ink box.

Background

In the inkjet printing field, the liquid container of present tray formula casing collocation ink bag formula is a more common a type of large capacity ink horn scheme, need during the installation with the liquid container from top to bottom vertically put into the casing, be equipped with the chip on the liquid container, the chip contacts in order to realize electric connection with the electric connection portion of device side, nevertheless the liquid container adorns all has bigger activity space to the length of casing and width direction behind the casing, be not enough to guarantee the chip on the liquid container and the contact stability of device side electric connection portion.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application provides an ink cartridge to solve the technical problems in the prior art, which can improve the connection stability between the liquid container and the casing, and further ensure the contact stability between the chip and the dot connection portion of the printer.

In a first aspect, the present application provides an ink cartridge comprising a housing and a liquid containing body detachably mounted in the housing, wherein:

the shell comprises a bottom plate and an outer frame body arranged on the bottom plate, wherein an accommodating space for accommodating the liquid accommodating body is formed in the outer frame body, the outer frame body is locally sunken at the upper edge to form a first limiting groove, and the first limiting groove is locally sunken at the bottom to form a second limiting groove;

the liquid containing body comprises an containing part, a connecting part and a limited part, the containing part is used for containing liquid, the connecting part is connected with the containing part and the limited part, the connecting part is convexly provided with a convex body in a first direction, and the convex body penetrates out of the outer frame body through the second limiting groove;

the limited part comprises a first limited part, the first limited part is arranged at one end of the convex body protruding out of the outer frame body, and a first limited surface is formed on the first limited part;

first limiting surfaces are formed on the outer wall surface and the inner wall surface of the outer frame body, one of the first limiting surfaces is in fit contact with the first limited surface, and the other first limiting surface is in fit contact with the outer wall surface of the connecting portion so as to limit the movement of the liquid accommodating body in the first direction.

In the technical scheme of this application embodiment, through set up on the convex body first by the locating part, first by locating part and the spacing cooperation of second spacing groove formation, restriction the liquid container is less than the removal on the first direction at least, can guarantee the whole stable assembly in the casing of liquid container, and then improves the contact stability of chip and printer electric connection portion.

In some embodiments, the convex body is provided with the first limited part on two opposite side surfaces.

In some embodiments, the connecting portion is formed with a hole, one end of the hole penetrates through the surface of the convex body, and the other end of the hole extends to a side wall surface of the connecting portion close to the accommodating portion.

In some embodiments, the limited portion further includes a second limited member, the second limited member extends into the first limited groove to form a limiting fit, so as to limit the movement of the liquid container in a second direction, and a projection of the first direction and the second direction on the bottom plate is perpendicular to each other.

In some embodiments, the second limited parts are disposed on two opposite sides of the connecting part in the second direction, and each of the second limited parts has a second limited surface; two opposite inner wall surfaces of the first limiting groove form second limiting surfaces, and each second limiting surface is in fit contact with one second limited surface so as to limit the movement of the liquid accommodating body in the second direction.

In some embodiments, the second limited part abuts against the lower edge of the first limiting groove at the lower edge, and the upper edge of the second limited part is flush with the upper edge of the outer frame.

In some embodiments, a third limited member is disposed at one end of the second limited member protruding from the first limited groove, a third limited surface is formed on the third limited member, and the third limited surface is used for contacting with the first limited surface.

In some embodiments, the outer frame body is formed by sequentially joining a front support plate, a first side plate, a rear support plate, and a second side plate, the front support plate extends along the second direction, and the second limiting groove and the first limiting groove are both disposed on the front support plate.

In some embodiments, a chip is disposed on the connecting portion at a side away from the accommodating portion, and the chip is located between one of the first and second limited members.

In some embodiments, the bottom plate is provided with convex columns, the connecting portion is provided with avoiding gaps corresponding to the convex columns, each convex column is located in one avoiding gap, and a gap exists between each convex column and the corresponding inner wall of the avoiding gap

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

FIG. 1 is a schematic structural view of a mounting portion according to some embodiments of the present application;

FIG. 2 is a view of the liquid container and the housing of some embodiments of the present application assembled together;

FIG. 3 is a partial assembled structural view of a liquid container and a housing according to some embodiments of the present application;

FIG. 4 is an isometric view of a housing of some embodiments of the present application;

FIG. 5 is an isometric view of a liquid containing body of some embodiments of the present application with the liquid containing body hidden from view;

in the drawings, the drawings are not necessarily drawn to scale.

The reference numbers in the detailed description are as follows:

10-shell, 101-bottom plate, 1011-bearing surface, 102-outer frame, 1021-front support plate, 1022-first side plate, 1023-rear support plate, 1024-second side plate, 11-limiting part, 111-first limiting groove, 1111-first limiting surface, 112-second limiting groove, 1121-second limiting surface and 12-convex column;

20-a liquid containing body, 21-a containing part, 22-a connecting part, 221-a convex body, 222-an avoiding gap, 23-a limited part, 231-a first limited part, 2311-a first limited surface, 232-a second limited part, 2321-a second limited surface, 233-a third limited part, 2331-a third limited surface, 24-a pore channel and 25-a clamping gap;

30-chip;

d1-first direction;

d2-second direction.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

To better explain the ink cartridge in this embodiment, reference is now made to the concept of X, Y, Z axes based on an ink cartridge having a rectangular parallelepiped structure, and three spatial axes orthogonal to each other are taken as an X axis, a Y axis, and a Z axis, where the width direction of the ink cartridge is the X axis direction, the length direction of the ink cartridge is the Y axis direction, and the height direction of the ink cartridge is the Z axis direction.

The ink cartridge disclosed by the application is used for matching with a mounting part 50 of an ink-jet printer, and the specific structure of the mounting part 50 of the ink-jet printer is described in detail below with reference to fig. 1, wherein fig. 1 is a schematic structural diagram of the mounting part of some embodiments of the application; the mounting portion 50 includes: a frame, an ink filling tube 51, a printer electrical connection portion 52,

columnar positioning portions

53f, 53s, and a lock portion 54. The locking portion 54 is a resettable, swingable rod-like member provided with a projection extending in the-Z direction at a movable end thereof, the printer electrical connection portion 52 is electrically connectable with the chip 14 thereon in a state where the liquid containing body is mounted to the mounting portion 50, and the printer electrical connection portion 52 includes a plurality of contact pins (not shown) made of an elastic, electrically conductive steel sheet.

At present, in the field of inkjet printing, a tray-type housing 10 is matched with an ink bag-type liquid container 20, which is a relatively common large-capacity ink cartridge solution, the liquid container includes a connecting portion 22, a chip 30 is mounted on the connecting portion 22, and the chip 30 is used for contacting with an electrical connection portion 52 of a printer of an installation portion to realize electrical connection.

Need during the installation of the liquid container 20 with the liquid container 20 from top to bottom vertically put into casing 10, be equipped with the bellying that extends along the installation direction in the casing 10 with the installation of guide liquid container 20, thereby the connecting portion 22 of the liquid container 20 can be in local fretwork and the bellying of casing 10 do the cooperation in the shape, the stable connection of two parts just can be guaranteed to this kind of cooperation mode needs higher shape and size precision, but all can set up great fit clearance to this type of structure on the general connecting portion 22 for guaranteeing the commonality of consumptive material, this just makes liquid container 20 adorn to casing 10 back all have certain activity space on the length of casing 10 and width direction, be not enough to guarantee the contact stability of chip 30 on the connecting portion 22 and inkjet printer's electric connection portion 52.

In order to improve the connection stability between the liquid container 20 and the casing 10 and further ensure the contact stability of the chip 30 and the electrical connection part 52 of the printer, the present application provides an ink cartridge.

Referring to fig. 2, fig. 2 is a view showing an assembly structure of the liquid container 20 and the housing 10 according to some embodiments of the present application; some embodiments of the present application provide an ink cartridge comprising a housing 10 and a liquid container 20 detachably mounted in the housing 10, wherein: the shell 10 is provided with a bearing surface 1011 for bearing the liquid containing body 20, the bearing surface 1011 provides an acting force in a-Z axis direction for the liquid containing body 20 so as to limit the + Z direction movement of the liquid containing body 20, the liquid containing body 20 can be taken out from the shell 10 along the-Z axis direction, the liquid containing body 20 has only one degree of freedom in the shell 10, the bearing surface 1011 is provided with a limiting part 11, the limiting part 11 can be fixed on the bearing surface 1011 by adopting an integrated forming mode or other modes such as adhesion, screw connection and the like, limitation is not required, preferably, the integrated forming mode is adopted, so that the overall strength is improved, and the production difficulty is reduced.

The liquid containing body 20 includes an accommodating portion 21, a connecting portion 22 and a limited portion 2311, the accommodating portion 21 is used for containing liquid (such as ink), the connecting portion 22 is respectively connected with the accommodating portion 21 and the limited portion 2311, the limited portion 2311 and the limited portion 11 form limit fit to limit the movement of the liquid containing body 20 to less than a first direction D1 and a second direction D2, and projections of the first direction D1 and the second direction D2 on the bearing surface 1011 are perpendicular to each other.

Since the ink cartridge is in a rectangular parallelepiped structure in some embodiments, the first direction D1 is defined as the Y-axis direction, and the second direction D2 is defined as the X-axis direction, so that the liquid container 20 is limited in both the length and width directions of the ink cartridge, stable assembly between the liquid container 20 and the housing 10 can be ensured, contact stability between the chip 30 and the printer electrical connection portion 52 can be improved, and structural degradation of the housing 10 due to excessive stress concentration can be prevented.

According to some embodiments of the present application, optionally, referring to fig. 2 and 3, fig. 3 is a partial assembly structure view of the liquid container 20 and the housing 10 according to some embodiments of the present application; the position-limiting portion 11 includes a first position-limiting groove 111 and a second position-limiting groove 112, and the position-limited portion 2311 includes a first position-limited member 231 and a second position-limited member 232.

The first to-be-limited member 231 extends into the second limiting groove 112 to form a limiting fit so as to limit the movement of the liquid container 20 in the first direction D1, and the first to-be-limited member 231 is subjected to two directions of forces in the second limiting groove 112, namely a + Y-axis direction and a-Y-axis direction, respectively, the + Y-axis direction of force limits the movement of the liquid container 20 in the-Y-axis direction, the-Y-axis direction of force limits the movement of the liquid container 20 in the + Y-axis direction, and the two forces limit the movement of the liquid container 20 in the first direction D1 (Y-axis direction).

The second limited member 232 extends into the first limiting groove 111 to form a limiting fit to limit the movement of the liquid container 20 in the second direction D2, and the second limited member 232 receives two directional forces in the first limiting groove 111, which are a + X-axis force and a-X-axis force, respectively, the + X-axis force limits the movement of the liquid container 20 in the-X-axis direction, the-X-axis force limits the movement of the liquid container 20 in the + X-axis direction, and the two forces limit the movement of the liquid container 20 in the second direction D2 (X-axis direction).

It can be seen from the above scheme that, the liquid container 20 can realize the spacing in two directions with the casing 10 only through the spacing cooperation of the first limited part 231 and the second limited groove 112, the second limited part 232 and the first limited groove 111, and ensure the stable connection between them, the liquid container 20 does not need to be provided with other connecting structures matched with the casing 10, and also does not need to be provided with connecting structures matched with the printer installation part, which is helpful for reducing the structural complexity of related consumables, and further reduces the design and manufacturing cost.

According to some embodiments of the present application, optionally, referring to fig. 4, fig. 4 is an isometric view of the housing 10 according to some embodiments of the present application, the housing 10 includes a bottom plate 101 and an outer frame 102 disposed on the bottom plate 101, the bottom plate 101 is preferably a rectangular plate, a length direction of the rectangular plate is a first direction D1 and also corresponds to a Y-axis direction, a width direction of the rectangular plate is a second direction D2 and also corresponds to an X-axis direction, a length of the bottom plate 101 in the Y-axis direction is greater than a length of the bottom plate 101 in the X-axis direction, a receiving space for receiving the liquid container 20 is formed in the outer frame 102, and a support surface 1011 is formed on a bottom surface of the receiving space.

The top surface of the outer frame 102 is partially recessed downward to form a first limiting groove 111, the depth of the first limiting groove 111 is smaller than the height of the outer frame 102, the first limiting groove 111 penetrates through the outer frame 102 along the first direction D1, the bottom of the first limiting groove 111 is partially recessed to form a second limiting groove 112, the second limiting groove 112 penetrates through the bottom plate 101, and a notch is formed in the bottom plate 101. The shapes of the first and

second retaining grooves

111 and 112 are not limited herein, and may be a regular groove structure or an irregular groove structure.

According to some embodiments of the present application, optionally, referring to fig. 5, fig. 5 is an isometric view of the liquid container 20 according to some embodiments of the present application in a state of hiding the containing portion 21, the connecting portion 22 protrudes with a convex body 221 in a first direction D1, the convex body 221 is formed on a side of the connecting portion 22 away from the containing portion 21, a duct 24 is formed on the connecting portion 22 to pass through the connecting portion 22 away from the containing portion 21 and close to the containing portion 21, and the duct 24 is used for containing an ink outlet nozzle (not marked in the figure) on the containing portion 21. In some embodiments, the hole 24 is formed on the convex body 221, one end of the hole 24 penetrates through the surface of the convex body 221, and the other end extends to the side wall surface of the connecting portion 22 close to the accommodating portion 21, so that the structure of the connecting portion 22 is more compact, which helps to reduce the structural complexity of the liquid accommodating body 20, the convex body 221 can also play a role in guiding and positioning during installation, the shape of the convex body 221 is not limited herein, and those skilled in the art can know that the shape, size and the like of the convex body 221 and the hole 24 can be changed according to actual situations.

The convex body 221 extends into the second limiting groove 112, the outer diameter of the convex body 221 is matched with the inner diameter of the second limiting groove 112, the convex body 221 can be clamped in the second limiting groove 112, so as to play a role of limiting the convex body 221 to move in the second direction D2, the first limited part 231 is arranged on one side, protruding out of the second limiting groove 112, of the convex body 221, a first limited surface 2311 is formed on the first limited part 231, a clamping gap 25 is formed between the first limited surface 2311 and the outer wall surface of the connecting part 22, facing away from the accommodating part 21, the distance of the clamping gap 25 is equal to or slightly larger than the width of the outer frame body 102, after the convex body 221 extends into the second limiting groove 112, the outer frame body 102 also extends into the clamping gap 25, the first limited part 231 is located on the outer side of the outer frame body 102, and the connecting part 22 is located on the inner side of the outer frame body 102.

The outer wall surface and the inner wall surface of the outer frame 102 are both formed with a first limit surface 1111, wherein the outer wall surface of the outer frame 102 refers to a wall surface away from the liquid container 20, and the inner wall surface of the outer frame 102 refers to a wall surface close to the liquid container 20, preferably, the outer frame is a square structure, the outer wall surface and the inner wall surface of the outer frame 102 are formed on two opposite sides of the outer frame 102, one first limit surface 1111 is in contact with the first limited surface 2311, and the other first limit surface 1111 is in contact with the outer wall surface of the connecting portion 22, so as to limit the movement of the liquid container 20 in the first direction D1.

The shapes of the first limiting surface 1111 and the first surface 2311 are not limited herein, and only need to be able to limit the movement of the liquid container 20 in the first direction D1. Preferably, the first object 231 is a plate structure parallel to the Z-axis direction, the first object 2311 is a plate surface extending parallel to the Z-axis direction, the outer wall surface of the connecting portion 22 is also preferably a wall surface extending parallel to the Z-axis direction, and the shape of the first object 1111 matches the shape of the first object 2311.

Further, referring to fig. 5, the convex body 221 is provided with first limited parts 231 on two opposite sides in the second direction D2. The two first limited parts 231 are symmetrically arranged and have the same distance with the outer wall surface of the connecting part 22, so that the outer frame bodies 102 of the second limiting grooves 112 at two sides in the second direction D2 can be clamped and limited by the clamping gap 25, the stability of assembly is guaranteed, stress is prevented from being excessively concentrated, and structural damage and deterioration of related parts are prevented.

According to some embodiments of the present application, optionally, as shown with reference to fig. 3 and 5; the connecting portion 22 is provided with second limited parts 232 on two opposite sides in the second direction D2, the two second limited parts 232 are symmetrically disposed, each second limited part 232 is formed with a second limited surface 2321, and the second limited surface 2321 is formed on an outer side of the second limited part 232, that is, a side departing from another second limited part 232.

Two opposite inner wall surfaces of the first limiting groove 111 are respectively formed with a second limiting surface 1121, and the two second limiting surfaces 1121 are oppositely arranged in the second direction D2. The shapes of the second position-limiting surface 1121 and the second surface 2321 are not limited herein, and only need to be satisfied to limit the movement of the liquid container 20 in the second direction D2. The gap between the two second limited surfaces 2321 is equal to or slightly smaller than the gap between the two second limited surfaces 1121, so that the two second limited surfaces 1121 correspond to the two second limited surfaces 2321 one to one and are respectively in contact with each other in a fitting manner or have a small gap.

Preferably, the second limited member 232 is a plate structure parallel to the Z-axis direction, the second limited member 232 extends into the first limiting groove 111, the bottom of the second limited member 232 abuts against the bottom surface of the first limiting groove 111, the top surface of the second limited member 232 is flush with the top surface of the first limiting groove 111, the second limited surface 2321 is a plate surface extending parallel to the Z-axis direction, the shape of the second limiting surface 1121 is matched with the shape of the second limited surface 2321, and the first limiting groove 111 is preferably a square groove structure.

Since the liquid containing body 20 is subjected to a force in the-Y axis direction when the ink cartridge is mounted to the mounting portion of the ink jet printer, the liquid containing body 20 is easily moved in the-Y axis direction, and for limiting the movement, referring to fig. 5, a third limited member 233 is disposed on a side of the second limited member 232 protruding from the first limiting groove 111, a third limited surface 2331 is formed on the third limited member 233, and the third limited surface 2331 is configured to be in contact with the first limiting surface 1111.

The third limited member 233 is preferably a plate structure extending along the Z-axis direction, and is integrally formed with the second limited member 232, the third limited surface 2331 is formed on the inner side of the third limited member 233, that is, on the side close to the outer frame 102, and the shape of the third limited surface 2331 matches the shape of the first limited surface 1111 so as to be stably attached to the first limited surface 1111, thereby limiting the movement of the liquid container 20 in the-Y-axis direction.

According to some embodiments of the present application, and optionally with reference to fig. 2 and 4, fig. 4 is an isometric view of the housing 10 of some embodiments of the present application; the outer frame 102 is formed by sequentially connecting a front support plate 1021, a first side plate 1022, a rear support plate 1023, and a second side plate 1024, wherein the front support plate 1021 extends along a second direction D2, and the first limiting groove 111 and the second limiting groove 112 are both disposed on the front support plate 1021.

In some embodiments, the outer frame 102 is a square structure, the front board 1021 and the rear board 1023 extend along the second direction D2, the first side board 1022 and the second side board 1024 extend along the first direction D1, outer sides of the front board 1021, the first side board 1022, the rear board 1023 and the second side board 1024 are flush with an edge of the bottom board 101, the first limiting groove 111 and the second limiting groove 112 are formed on the front board 1021 in a recessed manner and penetrate through the front board 1021 in the first direction D1, the first limiting surfaces 1111 are formed on two opposite sides of the front board 1021, and after the protrusion 221 extends into the second limiting groove 112, the front board 1021 is clamped into the clamping gap 25 between the first limited part 231 and the connecting part 22 to form a limit position in the first direction D1.

Referring to fig. 3 and 5, the connecting portion 22 is provided with a chip 30 on a side away from the accommodating portion 21, and the chip 30 is located between the first stopper 231 and the second stopper 232. The corresponding connection points are closer to the chip 30, improving the contact stability of the chip 30 with the printer electrical connections 22.

According to some embodiments of the present application, optionally, as shown in fig. 2 and 3, the base plate 101 is provided with a convex pillar 12, and the connecting portion 22 is provided with an avoiding notch 222 corresponding to the convex pillar 12. In the length direction of the bottom plate 101, the convex column 12 and the connecting portion 22 at least partially overlap, the connecting portion 22 is provided with an avoiding notch 222 at a side facing away from the front panel 1021 corresponding to the two convex columns 12, preferably, two convex columns 12 are provided and symmetrically arranged along the second direction D2, each convex column 12 is located inside one avoiding notch 222, and a gap exists between the convex column 12 and the inner wall of the corresponding avoiding notch 222.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims

1. An ink cartridge comprising a casing and a liquid containing body detachably mounted in the casing, characterized in that:

the liquid accommodating body comprises an accommodating part, a connecting part and a limited part, the accommodating part is used for accommodating liquid, the connecting part is connected with the accommodating part and the limited part, the connecting part is convexly provided with a convex body in a first direction, and the convex body penetrates out of the outer frame body through the second limiting groove;

2. The ink cartridge as claimed in claim 1, wherein the convex body is provided with the first to-be-restricted member on opposite side surfaces.

3. The ink cartridge as claimed in claim 1, wherein the connecting portion has a hole formed therein, one end of the hole extends through the surface of the convex body, and the other end of the hole extends to a side wall surface of the connecting portion adjacent to the receiving portion.

4. The ink cartridge of claim 1, wherein the restrained portion further comprises a second restrained member, the second restrained member extending into the first restraining groove to form a restraining fit to restrain the liquid containing body from moving in a second direction, and projections of the first direction and the second direction on the bottom plate are perpendicular to each other.

5. The ink cartridge as claimed in claim 4, wherein the second to-be-limited members are provided on opposite sides of the connecting portion in the second direction, and each of the second to-be-limited members has a second to-be-limited surface formed thereon;

two opposite inner wall surfaces of the first limiting groove form second limiting surfaces, and each second limiting surface is in fit contact with one second limited surface so as to limit the movement of the liquid accommodating body in the second direction.

6. The ink cartridge as claimed in claim 4, wherein the second subject stopper abuts against a lower edge of the first stopper groove at a lower edge, and an upper edge of the second subject stopper is flush with an upper edge of the outer frame.

7. The ink cartridge as claimed in claim 4, wherein the second member-to-be-limited is provided with a third member-to-be-limited at an end protruding from the first limiting groove, the third member-to-be-limited is provided with a third surface to be limited, and the third surface to be limited is adapted to be in contact with the first limiting surface.

8. The ink cartridge as claimed in any one of claims 4 to 7, wherein the outer frame is formed by a front plate, a first side plate, a rear plate and a second side plate which are sequentially joined, the front plate extends along the second direction, and the first and second position-limiting grooves are formed in the front plate.

9. The ink cartridge as claimed in any one of claims 4 to 7, wherein a chip is provided on the connecting portion on a side away from the accommodating portion, the chip being located between one of the first to-be-limited members and one of the second to-be-limited members.

10. The ink cartridge as claimed in any one of claims 1 to 7, wherein the bottom plate is provided with convex pillars, the connecting portion is provided with an avoiding notch at a position corresponding to the convex pillars, each convex pillar is located inside one avoiding notch, and a gap is formed between the convex pillar and the inner wall of the corresponding avoiding notch.