CN220031525U

CN220031525U - Ink supply container

Info

Publication number: CN220031525U
Application number: CN202321149665.XU
Authority: CN
Inventors: 王宝强
Original assignee: Zhuhai Ninestar Management Co Ltd
Current assignee: Zhuhai Ninestar Management Co Ltd
Priority date: 2022-05-27
Filing date: 2023-05-12
Publication date: 2023-11-17
Anticipated expiration: 2033-05-12

Abstract

The utility model relates to an ink supply container, which comprises a main body part, a valve component and a cover component, wherein the main body part is provided with a containing cavity, the containing cavity is provided with an ink outlet, the valve component is arranged at the ink outlet, the valve component comprises a valve main body, the valve main body can control the opening of the ink outlet, the containing cavity is communicated with the outside, the effect of balancing the air pressure in the containing cavity can be realized, and the problem of pollution caused by the leakage of ink due to overlarge pressure ejection can be solved.

Description

Ink supply container

Technical Field

The utility model relates to the technical field of printing, in particular to an ink supply container.

Background

Along with the development of technology, the use of printers is more and more widespread, bottled ink is used as a necessary consumable of the printers, the amount of bottled ink is continuously increased, so that the ink bottles need to be transported to various places through various transportation ways, and due to various transportation conditions, a part of ink bottles can be transported in different storage environments, and due to different temperatures in the transportation process, when the ink bottles are transported to a destination, air pressure difference is generated between the inside of the bottle body and the outside, and when the other part of ink bottles are not transported for a long distance, the air pressure difference is also generated between the inside of the bottle and the outside due to different environmental conditions of the ink bottles. When a user supplies ink, the pressure difference causes the ink in the ink bottle to break through the valve part due to the pressure, so that the ink is sprayed, the ink bottle is polluted, the use environment of the user is polluted, and the use experience of the user is influenced.

Disclosure of Invention

The utility model provides an ink supply container which is used for solving the problem that ink is easy to leak.

The present utility model provides an ink supply container including:

a main body portion having a receiving chamber with an ink outlet;

a valve member mounted to the ink outlet, the valve member including a valve main body;

wherein the valve member is used for controlling the communication between the accommodating cavity and the outside.

The ink supply container is used for supplementing ink for printing equipment, wherein the main body part is provided with a containing cavity for containing the ink, and one end of the containing cavity is provided with an ink outlet for ink to flow out. The ink outlet is provided with a valve component, the valve component can control the outflow of ink, wherein the valve component comprises a valve main body, the valve main body moves relative to the ink outlet to open the ink outlet, and the communication between the accommodating cavity and the outside is realized, so that the effect of balancing the air pressure difference is achieved, and the problem of ink leakage caused by overlarge pressure in the ink supply container is reduced.

In one possible embodiment, the ink supply container further includes a cover member that covers the valve member, the cover member having a cover body with a pressure release member movable relative to the valve member for opening the valve body to communicate the accommodating chamber with the outside.

The ink supply container further includes a cover member that is mounted to the valve member in a covering manner, wherein an end of the cover member remote from the valve member has a pressure release member that is movable in a direction approaching or moving away from the valve member, thereby controlling opening or closing of the valve member.

In one possible embodiment, the ink supply container includes an elastic member between the pressure release member and the cover for resetting the pressure release member after movement.

The elastic component is used for exerting elasticity to the pressure release piece, and the one end and the pressure release piece butt of elastic component, the other end and lid butt when exerting external force to the pressure release piece and making it along the direction that is close to the valve main part motion, the elastic component is compressed, and the pressure release piece is in opening valve main part butt, when relieving the external force that exerts the pressure release piece, the pressure release piece can be under the elastic force effect of elastic component to the direction motion of keeping away from the valve main part to break away from with the valve main part, the valve main part can be closed.

In one possible embodiment, the pressure release member includes a pressing portion and an abutment portion, the cover body has a mounting hole, wherein a sectional area of the pressing portion is larger than an area of the mounting hole, a sectional area of the abutment portion is smaller than an area of the mounting hole, the abutment portion is located at a side of the pressing portion near the main body portion, and the abutment portion extends into the mounting hole.

The pressing portion and the abutting portion may be circular in cross section, wherein the pressing portion is larger in cross-sectional diameter than the abutting portion, the pressing portion has a larger cross-sectional area for facilitating pressing operation by an operator, and the abutting portion has a smaller cross-sectional area for facilitating generation of sufficient pressure for opening the valve body. The abutting portion is installed in the mounting hole and can move relative to the mounting hole, and the mounting hole can play a limiting role on the movement of the abutting portion, so that the valve main body can be accurately opened by the abutting portion. The end of the abutment portion near the valve body may be provided as a flat surface, an arc surface, an inclined surface, or the like.

In one possible embodiment, the cover has a mounting groove recessed in a direction approaching the valve member, the mounting hole is located at a bottom wall of the mounting groove, and the pressure release member is located at the mounting groove.

The mounting groove is used for accommodating the pressure release member, so that the pressure release member can not be raised relative to the cover member, and the whole volume of the ink supply container is conveniently reduced. The mounting hole sets up in the diapire of mounting groove, and the butt portion can pass mounting hole and valve main part butt, and the pressing part is located the one side that the butt portion kept away from the valve main part, and the cross-sectional area of pressing part is greater than the cross-sectional area of mounting hole. The elastic piece can be a spring, the elastic piece is sleeved on the abutting part, the elastic piece is located inside the mounting groove and located between the pressing part and the bottom wall of the mounting groove, when the pressing part is pressed, the pressing part can compress the elastic piece and drive the abutting part to move along the direction close to the valve main body, when the pressing part is not pressed any more, the pressing part can reset under the action of the elastic force of the elastic piece, and the abutting part is driven to move along the direction far away from the valve main body.

In one possible embodiment, one end of the elastic member abuts against the pressing portion, and the other end of the elastic member abuts against the bottom wall of the mounting groove. The elastic piece enables the pressure release piece to reset after moving through self elasticity.

In one possible embodiment, the cover member has a stopper portion that is located on an inner wall of the mounting groove and is provided around the mounting hole, and the pressure release member is capable of abutting against the stopper portion in a height direction of the ink supply tank.

The stop part is used for playing a limiting role on the pressure release piece, the stop part is arranged on the inner wall of the installation groove in a surrounding mode, the stop part is protruding relative to the inner wall of the installation groove, and the pressure release piece is located on one side, close to the valve component, of the stop part and used for limiting the pressure release piece to be separated from the installation groove. Specifically, the pressing portion can be abutted against the stop portion under the action of the elastic force of the elastic piece, and the stop portion can be annular or in a plurality of protruding shapes and is arranged on the inner wall of the mounting groove in a surrounding mode.

In one possible embodiment, a gasket is provided between the valve member and the main body portion.

The sealing gasket is arranged between the ink outlet and the valve component, has elasticity, can play a sealing effect when the main body part and the valve component are connected with each other, and prevents the pollution caused by the exudation of the ink from the main body part and the valve component when the ink flows out from the ink outlet.

In one possible embodiment, the valve member includes a connection seat, one end of which is connected to the body portion, the other end of which is connected to the valve body, and a sectional area of an end of the connection seat remote from the body portion is smaller than a sectional area of an end connected to the body portion.

The connecting seat is detachably connected with the main body part, and the connecting seat is communicated with the accommodating cavity, and the valve main body is installed at one end, far away from the accommodating cavity, of the connecting seat and is used for sealing the accommodating cavity. The cross-sectional shape and the size of one end of the connecting seat, which is connected with the main body part, are matched with the ink outlet, and the cross-sectional size of the other end is relatively smaller, so that the cover part is conveniently covered on the valve part, and the valve part is integrally positioned in the cover part.

In one possible embodiment, the cover part and the valve part are sleeved, and the cover part and the valve part are connected through threads.

The cover part covers the valve part and is used for protecting and sealing the valve part, and the pressure release piece of the cover part is matched with the valve part to realize the effect of balancing the air pressure in the accommodating cavity. When the ink supply container performs an ink supply function, the cover member needs to be removed from the valve member. The cover part and the valve part are connected through threads, so that the cover part and the valve part are convenient to detach and install.

The utility model provides an ink supply container, which comprises a main body part and a valve component, wherein the main body part is provided with a containing cavity, the containing cavity is provided with an ink outlet, the valve component is arranged at the ink outlet, the valve component comprises a valve main body, the valve main body can move relative to the ink outlet, the valve main body is used for controlling the containing cavity to be communicated with the outside, the effect of balancing the air pressure in the containing cavity can be realized, and the problem of pollution caused by leakage of ink due to overlarge pressure can be solved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.

Drawings

FIG. 1 is a schematic diagram of an embodiment of an ink supply container provided by the present utility model;

FIG. 2 is an exploded view of one embodiment of an ink supply container provided by the present utility model;

FIG. 3 is a cross-sectional view of one embodiment of an ink supply container provided by the present utility model;

FIG. 4 is an enlarged view of a portion of I in FIG. 3;

FIG. 5 is a schematic view of an embodiment of a pressure relief opening valve member provided by the present utility model;

FIG. 6 is a cross-sectional view of one embodiment of a cover member provided by the present utility model;

fig. 7 is an exploded view of one embodiment of a cover member provided by the present utility model.

Reference numerals:

1-a main body part;

11-a receiving cavity;

12-an ink outlet;

2-valve means;

21-a valve body;

22-incision;

23-connecting seats;

3-a cover member;

31-a cover;

311-mounting holes;

32-a pressure release member;

321-a pressing part;

322-abutment;

33-an elastic member;

34-mounting slots;

35-a stop;

4-sealing gasket.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.

Detailed Description

For a better understanding of the technical solution of the present utility model, the following detailed description of the embodiments of the present utility model refers to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

It should be noted that, the terms "upper", "lower", "left", "right", and the like in the embodiments of the present utility model are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present utility model. In the context of this document, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on the other element or be indirectly on the other element through intervening elements.

As shown in fig. 1 to 3, an embodiment of the present utility model provides an ink supply tank, the ink supply tank including a main body portion 1 and a valve member 2, the main body portion 1 having a housing chamber 11, the housing chamber 11 having an ink outlet 12, the valve member 2 being mounted to the ink outlet 12, the valve member 2 including a valve main body 21, the valve main body 21 being movable relative to the ink outlet 12, wherein the valve main body 21 is for controlling communication of the housing chamber 11 with the outside.

The ink supply container provided by the embodiment of the utility model is used for replenishing ink for printing equipment, wherein the main body part 1 is provided with a containing cavity 11 for containing the ink, and one end of the containing cavity 11 is provided with an ink outlet 12 for discharging the ink. The ink outlet 12 is provided with a valve member 2, and the valve member 2 can control the outflow of ink.

When the current ink supply container is in actual use, due to reasons such as transportation, the environmental temperature where the ink supply container is located changes, when the ink supply container is in final use, due to temperature influence, the air pressure inside the accommodating cavity 11 can be larger than the external air pressure, and when the ink supply container is installed, the internal ink can be burst due to the overlarge air pressure, so that the use experience is influenced by pollution. According to the ink supply container provided by the embodiment of the utility model, the accommodating cavity 11 is communicated with the outside through the valve component 2 so as to balance the internal and external air pressure difference, so that ink cannot be ejected to cause leakage and pollution.

In one possible embodiment, the ink supply container further includes a cover member 3, the cover member 3 being covered with the valve member 2, the cover member 3 having a cover body 31, the cover body 31 having a pressure release member 32, the pressure release member 32 being movable relative to the valve member 2 for opening the valve body 21 to communicate the accommodation chamber 11 with the outside.

The ink supply container further comprises a cover part 3, the cover part 3 is arranged on the valve part 2 in a covering manner, one end, far away from the valve part 2, of the cover part 3 is provided with a mounting hole 311, a pressure release part 32 is arranged in the mounting hole 311, the pressure release part 32 can move along the direction close to or far away from the valve part 2, when the pressure release part 32 moves along the direction close to the valve part 2 and is abutted to the valve main body 21, the valve main body 21 can be opened, the communication between the accommodating cavity 11 and the outside is realized, so that the effect of balancing the air pressure difference is achieved, when the pressure release part 32 moves along the direction far away from the valve part 2 and is separated from the valve main body 21, the valve main body 21 can be closed, the sealing effect on the accommodating cavity 11 is realized, and ink cannot flow out from the ink outlet 12.

As shown in fig. 4 and 5, in one possible embodiment, the cover member 3 has an elastic member 33, and the elastic member 33 is located between the pressure release member 32 and the cover 31 for resetting the pressure release member 32 after movement.

The elastic member 33 is used for applying elastic force to the pressure release member 32, one end of the elastic member 33 is abutted against the pressure release member 32, the other end is abutted against the cover 31, when an external force is applied to the pressure release member 32 to move along a direction approaching the valve main body 21, the elastic member 33 is compressed, the pressure release member 32 is abutted against the valve main body 21 to open the ink outlet 12, when the external force applied to the pressure release member 32 is released, the pressure release member 32 can move away from the valve main body 21 under the action of the elastic force of the elastic member 33, and is separated from the valve main body 21, and the valve main body 21 is closed.

As shown in fig. 6 and 7, in one possible embodiment, the pressure release member 32 includes a pressing portion 321 and an abutment portion 322, wherein a cross-sectional area of the pressing portion 321 is larger than an area of the mounting hole 311, a cross-sectional area of the abutment portion 322 is smaller than an area of the mounting hole 311, the abutment portion 322 is located on a side of the pressing portion 321 near the main body portion 1, and the abutment portion 322 extends into the mounting hole 311.

Alternatively, the pressing portion 321 and the abutting portion 322 may be circular in cross section, wherein the pressing portion 321 has a larger cross-sectional diameter than the abutting portion 322, and the pressing portion 321 has a larger cross-sectional area for facilitating the pressing operation by the operator. The valve body 21 may be made of elastic material, and has a slit 22, and the slit 22 is closed by its own elastic force. The abutment 322 has a small cross-sectional area to facilitate creating a sufficient pressure to open the slit 22 to the valve body 21. The abutment portion 322 is mounted to the mounting hole 311, and is movable relative to the mounting hole 311, and the mounting hole 311 can limit the movement of the abutment portion 322, so that the abutment portion 322 can accurately open the slit 22. The end of the abutment 322 near the valve body 21 may be provided as a flat surface, an arc surface, an inclined surface, or the like.

As shown in fig. 7, in one possible embodiment, the cover 31 has a mounting groove 34, the mounting groove 34 is recessed in a direction approaching the valve member 2, the mounting hole 311 is located at a bottom wall of the mounting groove 34, and the pressure release member 32 is located at the mounting groove 34.

The mounting groove 34 is for accommodating the pressure release member 32 so that the pressure release member 32 can be kept from protruding with respect to the cover member 3, facilitating downsizing of the entire volume of the ink supply tank. The mounting hole 311 is provided in the bottom wall of the mounting groove 34, the abutting portion 322 can abut against the valve main body 21 through the mounting hole 311, the pressing portion 321 is located on a side of the abutting portion 322 away from the valve main body 21, and the sectional area of the pressing portion 321 is larger than the sectional area of the mounting hole 311. The elastic member 33 may be a spring, and is sleeved on the abutting portion 322, the elastic member 33 is located inside the mounting groove 34 and between the pressing portion 321 and the bottom wall of the mounting groove 34, when the pressing portion 321 is pressed, the pressing portion 321 can compress the elastic member 33 and drive the abutting portion 322 to move along a direction close to the valve main body 21, when the pressing portion 321 is not pressed any more, the pressing portion 321 can reset under the elastic force of the elastic member 33 and drive the abutting portion 322 to move along a direction far away from the valve main body 21.

As shown in fig. 4 and 7, in one possible embodiment, one end of the elastic member 33 abuts against the pressing portion 321, and the other end of the elastic member 33 abuts against the bottom wall of the mounting groove 34. The elastic member 33 can reset the pressure release member 32 after movement by its own elasticity, and re-close the ink outlet 12.

As shown in fig. 7, in one possible embodiment, the cover member 3 has a stopper 35, the stopper 35 being located on an inner wall of the mounting groove 34 and disposed around the mounting hole 311, and the pressure release member 32 being capable of abutting the stopper 35 in the height direction of the ink supply tank.

The stop portion 35 is used for limiting the pressure release member 32, the stop portion 35 is arranged around the inner wall of the mounting groove 34 and protrudes relative to the inner wall of the mounting groove 34, and the pressure release member 32 is located on one side of the stop portion 35, which is close to the valve member 2, for limiting the release member 32 from being separated from the mounting groove 34. Specifically, the pressing portion 321 can abut against the stop portion 35 under the elastic force of the elastic member 33, and the stop portion 35 may be annular or in a plurality of protruding shapes and circumferentially disposed on the inner wall of the mounting groove 34.

In one possible embodiment, the valve body 21 includes at least two slits 22, and the slits 22 intersect at the same location.

The slit 22 is an opening penetrating the valve main body 21, and since the valve main body 21 itself has the elastic member 33, the slit 22 can be in a closed state, so that ink cannot flow out through the ink outlet 12, and environmental pollution is avoided. The valve body 21 may be provided with a plurality of slits 22 for communication with the outside, wherein the plurality of slits 22 intersect each other at the same position, for example, in a cross shape or a rice shape, etc. When the pressure release piece 32 is abutted against the valve main body 21 and applies pressure, the valve main body 21 can deform to enable the notch 22 to be opened, so that the accommodating cavity 11 is communicated with the outside, and the effect of balancing air pressure is achieved. Alternatively, the notch 22 may be provided corresponding to the pressure release member 32, and the pressure release member 32 may directly extend into the notch 22 to open the notch 22, or the pressure release member 32 may abut against a portion of the valve body 21 around the notch 22 to open the notch 22. In particular, the cutout 22 may be provided in various shapes, such as in a plurality of raised configurations, depending on the size and configuration of the relief 32, facilitating the cooperation of the relief 32 and the valve body 21.

As shown in fig. 4 and 5, in one possible embodiment, a gasket 4 is provided between the valve member 2 and the main body portion 1.

The gasket 4 is located between the ink outlet 12 and the valve member 2, and the gasket 4 has elasticity, and can perform a sealing effect when the main body 1 and the valve member 2 are connected to each other, thereby preventing contamination caused by leakage of ink from between the main body 1 and the valve member 2 when the ink flows out from the ink outlet 12.

As shown in fig. 2, in one possible embodiment, the valve member 2 includes a connection seat 23, one end of the connection seat 23 is connected to the main body portion 1, the other end is connected to the valve main body 21, and a sectional area of an end of the connection seat 23 remote from the main body portion 1 is smaller than a sectional area of an end connected to the main body portion 1.

The connecting seat 23 is detachably connected with the main body part 1, and the connecting seat 23 is communicated with the accommodating cavity 11, and one end of the connecting seat 23 far away from the accommodating cavity 11 is provided with the valve main body 21 for closing the accommodating cavity 11. The cross-sectional shape and size of one end of the connecting seat 23 connected with the main body 1 are matched with those of the ink outlet 12, and the cross-sectional size of the other end is relatively small, so that the cover member 3 is conveniently covered on the valve member 2, and the valve member 2 is integrally positioned inside the cover member 3.

In one possible embodiment, the body part 1 is sleeved with the valve member 2, and the body part 1 and the valve member 2 are connected by threads.

The valve member 2 is sleeved and mounted at one end of the main body 1 provided with the ink outlet 12, wherein the diameter of the ink outlet 12 is smaller than that of other parts of the main body 1, and when the valve member 2 is mounted with the main body 1, the whole ink storage container can be kept in a flat state. The main body part 1 and the valve component 2 are connected through threads, so that the assembly connection of the main body part and the valve component is facilitated, and good tightness can be kept. Alternatively, the valve member 2 and the body portion 1 can also be connected with other removable seals, such as a snap fit or the like.

In one possible embodiment, the cover part 3 and the valve part 2 are sleeved, and the cover part 3 and the valve part 2 are connected by threads.

The cover part 3 is covered on the valve part 2 and is used for protecting and sealing the valve part 2, and the pressure release piece 32 of the cover part 3 is matched with the valve part 2 to realize the function of balancing the air pressure in the accommodating cavity 11. When the ink supply container performs the ink supply function, the cover member 3 needs to be removed from the valve member 2. The cover part 3 and the valve part 2 are conveniently detached and installed by screwing, alternatively the cover part 3 and the valve part 2 can be connected by other sealing detachable methods.

The embodiment of the utility model provides an ink supply container, which comprises a main body part 1, a valve part 2 and a cover part 3, wherein the main body part 1 is provided with a containing cavity 11, the containing cavity 11 is provided with an ink outlet 12, the valve part 2 is arranged on the ink outlet 12, the valve part 2 comprises a valve main body 21, the valve main body 21 can control the opening of the ink outlet 12, the containing cavity 11 is communicated with the outside, the effect of balancing the air pressure in the containing cavity 11 can be realized, and the problem of pollution caused by the leakage of ink due to overlarge pressure ejection can be solved.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. An ink supply container, characterized in that the ink supply container comprises:

a main body part (1), wherein the main body part (1) is provided with a containing cavity (11), and the containing cavity (11) is provided with an ink outlet (12);

a valve member (2), the valve member (2) being mounted to the ink outlet (12), the valve member (2) comprising a valve body (21), the valve body (21) being movable relative to the ink outlet (12);

wherein the valve body (21) is used for controlling the communication between the accommodating cavity (11) and the outside.

2. An ink supply container according to claim 1, characterized in that the ink supply container further comprises a cover member (3), the cover member (3) being covered with the valve member (2), the cover member (3) having a cover body (31), the cover body (31) having a pressure relief member (32), the pressure relief member (32) being movable relative to the valve member (2) for opening the valve body (21) to communicate the accommodation chamber (11) with the outside.

3. An ink supply container according to claim 2, characterized in that the ink supply container comprises an elastic member (33), the elastic member (33) being located between the pressure relief member (32) and the cover (31) for resetting the pressure relief member (32) after movement.

4. An ink supply container according to claim 3, wherein the pressure release member (32) includes a pressing portion (321) and an abutting portion (322), the cover body (31) has a mounting hole (311), wherein a cross-sectional area of the pressing portion (321) is larger than an area of the mounting hole (311), a cross-sectional area of the abutting portion (322) is smaller than an area of the mounting hole (311), the abutting portion (322) is located on a side of the pressing portion (321) close to the main body portion (1), and the abutting portion (322) protrudes into the mounting hole (311).

5. The ink supply tank according to claim 4, wherein the cover body (31) has a mounting groove (34), the mounting groove (34) is recessed in a direction approaching the valve member (2), the mounting hole (311) is located at a bottom wall of the mounting groove (34), and the pressure release member (32) is located at the mounting groove (34).

6. The ink supply container according to claim 5, wherein one end of the elastic member (33) abuts against the pressing portion (321), and the other end of the elastic member (33) abuts against a bottom wall of the mounting groove (34).

7. An ink supply container according to claim 5, characterized in that the cover member (3) has a stopper (35), the stopper (35) being located on an inner wall of the mounting groove (34) and being provided around the mounting hole (311), and the pressure release member (32) being capable of abutting the stopper (35) in a height direction of the ink supply container.

8. Ink supply container according to any one of claims 1 to 7, characterized in that a gasket (4) is provided between the valve member (2) and the main body portion (1).

9. An ink supply container according to any one of claims 2 to 7, wherein the valve member (2) includes a connection seat (23), one end of the connection seat (23) is connected to the main body portion (1), the other end is connected to the valve main body (21), and a cross-sectional area of an end of the connection seat (23) remote from the main body portion (1) is smaller than a cross-sectional area of an end connected to the main body portion (1).

10. Ink supply container according to claim 9, characterized in that the cover (31) and the connection seat (23) are sleeved, the cover (31) and the connection seat (23) being connected by threads.