CN217622805U - Ink box - Google Patents

Abstract

An ink cartridge detachably mountable to an image forming apparatus, the image forming apparatus being provided with an ink supply needle therein, the ink cartridge comprising: the surface of the box body facing the ink supply needle is provided with an ink supply part, and an ink supply cavity is arranged in the ink supply part in a penetrating manner; the valve core is movably arranged in the ink supply cavity; and the sealing element comprises a body part and a first sealing part, at least part of the body part is accommodated in the ink supply cavity, an ink outlet channel is arranged in the body part in a penetrating way, the ink supply needle can be inserted into the ink outlet channel, the ink outlet channel comprises at least one ink outlet, the inner diameter of one ink outlet is smaller than the outer diameter of the ink supply needle, the first sealing part is arranged around one ink outlet, and the first sealing part can be abutted against the outer peripheral wall of the ink supply needle, so that the sealing effect of the sealing element on the ink supply part is improved, and ink leakage after the ink supply needle is inserted or pulled out is avoided.

Description

Ink box

[ technical field ] A method for producing a semiconductor device

The utility model relates to a printing device technical field especially relates to an ink horn.

[ background of the invention ]

With the rapid development of socioeconomic performance, there is an increasing demand for printers in daily offices, and in many existing inkjet printers, a replaceable ink cartridge is generally used as an ink container to supply ink to the printer. The conventional ink cartridge is generally provided with an ink outlet and a sealing member, and the printer is provided with an ink supply needle which can pierce the sealing member and be inserted into the ink outlet when the ink cartridge is installed in the printer, so that ink stored in the ink cartridge can flow to the print head through the ink supply needle. However, after the existing sealing member is pierced, a gap exists between the ink supply needle and the sealing member, and the ink outlet cannot be sealed continuously, so that ink still overflows from the gap to cause ink leakage; in addition, when the ink supply needle is pulled out of the ink outlet, the sealing element cannot continuously seal the ink outlet, so that ink overflows from the ink outlet to cause ink leakage.

[ Utility model ] content

The application provides an ink box in order to overcome the defects, and solves the problem that the sealing element in the existing ink box can not continue to seal the ink outlet after being punctured by the ink supply needle.

The embodiment of the application provides an ink horn, ink horn detachably installs in imaging device, is provided with the confession ink needle in the imaging device, and the ink horn includes: the ink supply part is arranged on the surface of the box body facing the ink supply needle, and an ink supply cavity is arranged in the ink supply part in a penetrating manner; the valve core is movably arranged in the ink supply cavity; and the sealing element comprises a body part and a first sealing part, wherein at least part of the body part is accommodated in the ink supply cavity, an ink outlet channel is arranged in the body part in a penetrating manner, the ink supply needle can be inserted into the ink outlet channel, the ink outlet channel comprises at least one ink outlet, the inner diameter of one ink outlet is smaller than the outer diameter of the ink supply needle, the first sealing part is arranged around one ink outlet, and the first sealing part can be abutted against the outer peripheral wall of the ink supply needle.

Alternatively, the side wall of the main body facing the valve element is provided with an ink outlet, the first sealing portion extends from the side wall of the main body facing the valve element to a direction away from the main body, and the first sealing portion can abut against the side wall of the valve element facing the sealing member.

Optionally, the sealing member further includes a second sealing portion, the second sealing portion is connected with the inside of the ink outlet channel to seal the ink outlet channel, and the second sealing portion is provided with an opening with a variable opening and closing state.

Optionally, the ink cartridge further comprises a sealing film, the sealing film is arranged at the at least one ink outlet, and the sealing film can be punctured by the ink supply needle.

Optionally, the main body comprises a first body and a second body, the first body is disposed outside the ink supply cavity, and the second body is accommodated in the ink supply cavity; the sealing element further comprises a third sealing part, the third sealing part extends from the peripheral wall of the first body to the direction far away from the first body, and the third sealing part is abutted to the end wall of the ink supply part.

Optionally, the outer peripheral wall of the second body is provided with a first step surface, the inner peripheral wall of the ink supply part is provided with a second step surface, and the first step surface abuts against the second step surface.

Optionally, the seal further comprises at least one fourth seal disposed around the outer peripheral wall of the second body, the fourth seal abutting the inner peripheral wall of the ink supply.

Optionally, the inner diameter of the ink outlet channel gradually decreases in a direction close to the valve core.

Optionally, the ink outlet channel includes a first channel and a second channel which are connected in series, and the inner diameter of the first channel gradually decreases in a direction close to the valve core, and the inner diameter of the second channel is smaller than the outer diameter of the ink supply needle.

Optionally, the ink cartridge further includes an elastic member, the elastic member is accommodated in the ink supply chamber, and the valve core is movably disposed in the ink supply chamber through the elastic member.

Optionally, a limiting portion is disposed in the ink supply cavity, and the limiting portion may abut against a side wall of the valve core facing away from the sealing member.

After adopting above-mentioned technical scheme, beneficial effect is:

compared with the prior art, in the utility model provides an ink box, when the ink box was installed in imaging device, supply the ink needle and pegged graft in going out the black passageway and push the case and remove to the direction of keeping away from the sealing member, make the ink can flow to supply the ink needle, because the internal diameter of one of them ink outlet is less than the external diameter of supplying the ink needle, make this somatic part be close to the internal perisporium of this ink outlet can with the peripheral wall butt of supplying the ink needle and the clearance does not appear, and first sealing also can with the peripheral wall butt of supplying the ink needle and the clearance does not appear, improved the sealing effect to supplying the ink after the sealing member is punctured, avoided the ink box to appear leaking in the use; when the ink box is dismounted from the imaging equipment, the valve core can move towards the direction close to the sealing element, so that the sealing element can be abutted against the valve core again, the secondary sealing of the ink supply part is realized, and the ink leakage after the ink box is dismounted is avoided.

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 application.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of an ink cartridge provided in an embodiment of the present application.

Fig. 2 is a schematic view of the ink cartridge shown in fig. 1 at another angle.

Fig. 3 is an exploded view of the ink cartridge shown in fig. 1.

Fig. 4 is an enlarged view of a portion of the ink cartridge shown in fig. 3 at a.

Fig. 5 is a cross-sectional view of the cartridge body in the ink cartridge shown in fig. 3.

Fig. 6 is an enlarged view of a portion of the box body shown in fig. 5 at B.

Fig. 7 is a schematic view of a seal in the ink cartridge shown in fig. 3.

FIG. 8 is a schematic view of another angular configuration of the seal shown in FIG. 7.

Fig. 9 is a cross-sectional view of the seal shown in fig. 7.

Fig. 10 is a schematic view of a valve cartridge in the ink cartridge shown in fig. 3.

Fig. 11 is a schematic view of another angular configuration of the valve cartridge shown in fig. 10.

FIG. 12 is a cross-sectional view of the ink cartridge shown in FIG. 1.

Fig. 13 is an enlarged view of a portion of the ink cartridge shown in fig. 12 at C.

Fig. 14 is a sectional view of the ink cartridge and the ink supply mechanism shown in fig. 1 after assembly.

Fig. 15 is an enlarged view of a portion of the ink cartridge and ink supply mechanism shown in fig. 14 at D.

Fig. 16 is a schematic structural diagram of an ink supply mechanism according to an embodiment of the present application.

Reference numerals:

100-ink cartridge;

1-box body;

10 a-upper end face; 10 b-lower end face; 10 c-left end face; 10 d-right end face; 10 e-front end face; 10 f-rear end face; 11-an ink supply; 111-ink supply chamber; 112-a limiting part; 113-a third step surface; 114-a second step surface; 115-a limiting groove; 116-a guide groove; 12-a stop; 13-a vent;

2-a seal;

21-a body portion; 211-a first body; 212-a second body; 213-a first step surface; 22-a first seal; 23-a second seal; 24-a third seal; 25-a fourth seal; 26-an ink outlet channel; 260 a-first opening; 260 b-a second opening; 261-a first channel; 262-a second channel;

3-a valve core;

31-a body portion; 32-an extension;

4-an elastic member;

41-a first connection end; 42-a second connection end;

5-chip;

6-mounting a frame;

7-a light-shielding member;

200-an ink supply mechanism;

210-ink supply needles;

214-a housing; 215-pushing part;

220-mounting the cylinder;

221-a guide; 222-a snap-fit portion;

230-positioning holes.

[ detailed description ] A

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of 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 type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The conventional ink cartridge is generally provided with an ink outlet and a sealing member, and the printer is provided with an ink supply needle which can pierce the sealing member and be inserted into the ink outlet when the ink cartridge is installed in the printer, so that ink stored in the ink cartridge can flow to the print head through the ink supply needle. However, after the existing sealing member is pierced, a gap exists between the ink supply needle and the sealing member, and the ink outlet cannot be sealed continuously, so that ink still overflows from the gap to cause ink leakage; in addition, when the ink supply needle is pulled out of the ink outlet, the sealing element cannot continuously seal the ink outlet, so that ink overflows from the ink outlet to cause ink leakage.

In order to solve the above technical problem, an embodiment of the present application provides an ink cartridge, the ink cartridge is detachably installed in an image forming apparatus, an ink supply needle is provided in the image forming apparatus, the ink cartridge includes: the ink supply device comprises a box body, an ink supply part and an ink supply part, wherein the surface of the box body facing an ink supply needle is provided with the ink supply part, and an ink supply cavity is arranged in the ink supply part in a through manner; the valve core is movably arranged in the ink supply cavity; and the sealing element comprises a body part and a first sealing part, wherein at least part of the body part is accommodated in the ink supply cavity, an ink outlet channel is arranged in the body part in a penetrating manner, the ink supply needle can be inserted into the ink outlet channel, the ink outlet channel comprises at least one ink outlet, the inner diameter of one ink outlet is smaller than the outer diameter of the ink supply needle, the first sealing part is arranged around one ink outlet, and the first sealing part can be abutted against the outer peripheral wall of the ink supply needle.

For the sake of convenience of description, the longitudinal direction of the ink cartridge 100 is set to the X-axis direction shown in fig. 1, the thickness direction of the ink cartridge 100 is set to the Y-axis direction shown in fig. 1, the width direction of the ink cartridge 100 is set to the Z-axis direction shown in fig. 1, and the X-axis, the Y-axis, and the Z-axis shown in fig. 1 are perpendicular to each other.

Referring to fig. 1 to 3, an ink cartridge 100 according to an embodiment of the present disclosure at least includes a cartridge body 1, a sealing member 2, and a valve element 3, and the ink cartridge 100 is detachably disposed in an image forming apparatus (not shown). An ink supply mechanism 200 is provided in the image forming apparatus, the ink supply mechanism 200 includes at least an ink supply needle 210, an ink supply portion 11 is provided on a surface of the cartridge body 1 adjacent to and facing the ink supply needle 210, and the seal 2 and the valve element 3 are accommodated in the ink supply portion 11.

An ink storage chamber (not shown) for storing ink is provided in the cartridge body 1, and the ink supply portion 11 communicates with the ink storage chamber. When the ink cartridge 100 is mounted to an image forming apparatus, the ink supply needle 210 may be inserted into the ink supply portion 11 so that ink stored in the ink storage chamber may be transferred to a print head (not shown) provided in the image forming apparatus through the ink supply needle 210, thereby allowing the print head to output predetermined characters and/or images on a printing medium.

The box body 1 is further provided with a vent 13 communicated with the ink storage cavity, and the vent 13 can be communicated with the external atmosphere or an air pressure adjusting device (not shown in the figure) arranged in the imaging device, so that the air pressure in the ink storage cavity is adjusted, and the ink can smoothly flow out.

Specifically, the cartridge body 1 includes an upper end surface 10a and a lower end surface 10b opposed to each other in a first direction, a left end surface 10c and a right end surface 10d opposed to each other in a second direction, and a front end surface 10e and a rear end surface 10f opposed to each other in a third direction, wherein the left end surface 10c is close to and faces the ink supply needle 210, the first direction is parallel to the Z axis, the second direction is parallel to the X axis, the third direction is parallel to the Y axis, the first direction is toward the negative direction of the Z axis, the second direction is toward the negative direction of the X axis, and the third direction is toward the negative direction of the Y axis, that is, the first direction, the second direction, and the third direction are perpendicular to each other. The ink supply portion 11 is provided on the left end surface 10c, the vent 13 is provided on the upper end surface 10a, and the ink cartridge 100 is mounted in the image forming apparatus in the positive direction of the X-axis (i.e., the direction opposite to the second direction).

Referring to fig. 5 and 6, an ink supply chamber 111 is disposed through the ink supply portion 11, and the ink supply chamber 111 communicates with the ink storage chamber. The valve core 3 is movably arranged in the ink supply cavity 111, at least part of the sealing member 2 is accommodated in the ink supply cavity 111, and the ink supply cavity 111 can be sealed through the matching of the sealing member 2 and the valve core 3.

Referring to fig. 7 to 15, the sealing member 2 includes a main body 21 and a first sealing portion 22, wherein at least a portion of the main body 21 is accommodated in the ink supply chamber 111, an ink outlet channel 26 is disposed through the main body 21, the ink supply needle 210 is insertable into the ink supply channel, the ink outlet channel 26 includes at least one ink outlet (not shown), an inner diameter of the one ink outlet is smaller than an outer diameter of the ink supply needle 210, the first sealing portion 22 is disposed around the one ink outlet, and the first sealing portion 22 can abut against an outer peripheral wall of the ink supply needle 210. The number of the ink outlets may be one, two, three, four or any other number, and is not limited herein.

In some embodiments, the ink outlet channel 26 may include only one ink outlet, and the one ink outlet is disposed on a side wall of the main body 21 opposite to the valve core 3 (the ink outlet is the first opening 260 a).

Specifically, the inner diameter of the first opening 260a is smaller than the outer diameter of the ink supply needle 210, and the first sealing portion 22 is disposed around the first opening 260a and extends from the side wall of the main body 21 facing away from the valve element 3 in a direction away from the main body 21.

When the ink supply needle 210 is inserted into the ink outlet channel 26, the inner circumferential wall of the main body 21 near the first opening 260a and the first sealing portion 22 can abut against the outer circumferential wall of the ink supply needle 210 without a gap, thereby effectively preventing ink leakage.

In other embodiments, the ink outlet channel 26 may include only one ink outlet port, and the one ink outlet port is disposed on the side wall of the main body 21 facing the valve core 3 (the ink outlet port is the second opening 260 b).

Specifically, the inner diameter of the second opening 260b is smaller than the outer diameter of the ink supply needle 210, the first sealing portion 22 is disposed around the second opening 260b and extends from the side wall of the body portion 21 facing the valve element 3 in a direction away from the body portion 21, and the first sealing portion 22 may abut against the side wall of the valve element 3 facing the seal 2.

When the ink supply needle 210 is inserted into the ink outlet channel 26, the inner circumferential wall of the main body 21 near the second opening 260b and the first sealing portion 22 can abut against the outer circumferential wall of the ink supply needle 210 without a gap, thereby effectively preventing ink leakage. Further, the first seal portion 22 abuts against the seal member 2 to form a linear seal, which is advantageous in improving the sealing effect of the ink supply portion 11 as compared with the conventional surface contact seal.

In still other embodiments, the ink outlet channel 26 may include two ink outlets, wherein one ink outlet is disposed on a side wall of the main body 21 facing away from the valve core 3 (the ink outlet is the first opening 260 a), and the other ink outlet is disposed on a side wall of the main body 21 facing the valve core 3 (the ink outlet is the second opening 260 b).

Specifically, the inner diameter of the second opening 260b is smaller than the outer diameter of the ink supply needle 210, the first sealing portion 22 is disposed around the second opening 260b and extends from the side wall of the body portion 21 facing the spool 3 to the direction away from the body portion 21, and the first sealing portion 22 may abut against the side wall of the spool 3 facing the seal 2; alternatively, the inner diameter of the first opening 260a is smaller than the outer diameter of the ink supply needle 210, and the first sealing portion 22 is disposed around the first opening 260a and extends from the side wall of the main body 21 facing away from the valve body 3 in a direction away from the main body 21.

The sealing element 2 and the valve core 3 are arranged at intervals along the second direction (the negative direction of the X axis), the outer diameter of the valve core 3 is smaller than the inner diameter of the ink supply cavity 111, and the peripheral wall of the part of the sealing element 2 positioned in the ink supply cavity 111 is attached to the inner wall of the ink supply cavity 111. The material of the sealing member 2 may be rubber or any other material having elasticity, and is not limited herein.

The seal 2 includes a first left side wall (not shown) and a first right side wall (not shown) that are opposed in the second direction (the negative direction of the X-axis), and the spool 3 includes a second left side wall (not shown) and a second right side wall (not shown) that are opposed in the second direction (the negative direction of the X-axis). The ink outlet channel 26 is disposed through the main body 21 in the second direction (negative direction of the X axis), and the first opening 260a is opened in the first left side wall and the second opening 260b is opened in the first right side wall.

In the present application, when the ink cartridge 100 is installed in the image forming apparatus, the ink supply needle 210 may be inserted into the ink outlet channel 26 and push the valve core 3 to move along the second direction (negative direction of the X axis) so as to separate the sealing member 2 from the valve core 3, because the inner diameter of one of the ink outlets is smaller than the outer diameter of the ink supply needle 210, the inner peripheral wall of the main body 21 near the ink outlet may abut against the outer peripheral wall of the ink supply needle 210, and the first sealing portion 22 surrounding the ink outlet may also abut against the outer periphery of the ink supply needle 210, so as to avoid ink leakage caused by a gap between the ink supply needle 210 and the sealing member 2, and at this time, the ink stored in the ink storage chamber may flow to the image forming apparatus through the ink outlet chamber and the ink supply needle 210, as shown in fig. 15; when the ink cartridge 100 is removed from the image forming apparatus, the valve element 3 can move in the direction opposite to the second direction (positive direction of the X-axis) so that the sealing member 2 abuts against the valve element 3 again to block the ink outlet passage 26, thereby avoiding the problem of ink leakage after the ink supply needle 210 is pulled out.

With continued reference to fig. 7 to 9, in some embodiments, the sealing member 2 further includes a second sealing portion 23, the second sealing portion 23 is connected to the ink outlet channel 26 to seal the ink outlet channel 26, and the second sealing portion 23 is provided with an opening (not shown) with a variable opening/closing state.

Specifically, the second seal portion 23 is provided around the inner peripheral wall of the ink outlet passage 26, and the second seal portion 23 extends concavely in the second direction (the negative direction of the X-axis) from the first left side wall, so that the second seal portion 23 has some resilient elasticity.

When the ink cartridge 100 is mounted to the image forming apparatus, the ink supply needle 210 may pierce the opening to protrude into the ink outlet passage 26; when the ink cartridge 100 is detached from the image forming apparatus, the opening can be restored to the closed state, in addition, in the process that the ink supply needle 210 is pulled out along the reverse direction of the second direction (the positive direction of the X axis), the ink supply needle 210 will drive the second sealing portion 23 to deform along the reverse direction of the second direction (the positive direction of the X axis), the second sealing portion 23 can be restored to the initial state under the effect that the second sealing portion itself has resilience elasticity, and the problem of ink leakage caused by the fact that the opening cannot be closed due to the deformation of the second sealing portion itself is avoided.

In other embodiments, the cartridge 100 may include a sealing film that may be disposed at the at least one ink outlet, the sealing film being penetrable by the supply needle 210 such that the sealing member 2 does not need to be provided with the second sealing portion 23.

Specifically, the sealing film may be provided only at the first opening 260 a; alternatively, the sealing film may be provided only at the second opening 260 b; alternatively, the sealing film may be provided to both the first opening 260a and the second opening 260 b.

It is understood that the sealing member 2 may be provided with the second sealing portion 23, and a sealing film may be provided at the first opening 260a and/or the second opening 260b, so as to improve the sealing performance of the ink supply portion 11.

With continued reference to fig. 7 to 15, in some embodiments, the main body 21 includes a first body 211 and a second body 212, the first body 211 is disposed outside the ink supply cavity 111, and the second body 212 is accommodated in the ink supply cavity 111. The seal member 2 further includes a third seal portion 24, the third seal portion 24 extending from the outer peripheral wall of the first body 211 in a direction away from the first body 211, the third seal portion 24 abutting against an end wall of the ink supply portion 11.

Specifically, the third sealing portion 24 is disposed around the outer periphery of the first body 211 and extends in the radial direction of the first body 211, and the side wall of the third sealing portion 24 close to and facing the ink supply portion 11 abuts against the end wall of the ink supply portion 11, so that the sealing member 2 cannot move in the second direction (the negative direction of the X axis) after being stressed in the process of mounting the ink cartridge 100 in the image forming apparatus, and the problem that the ink supply chamber 111 is blocked due to deformation of the sealing member 2 is avoided.

Further, the outer peripheral wall of the second body 212 is provided with a first step surface 213, the inner peripheral wall of the ink supply portion 11 is provided with a second step surface 114, and the first step surface 213 abuts against the second step surface 114.

Specifically, the second body 212 includes a first ink outlet portion (not shown in the figure) and a second ink outlet portion (not shown in the figure) that are continuously connected in the second direction (negative direction of the X-axis), and the outer diameter of the first ink outlet portion is larger than that of the second ink outlet portion, so that the first ink outlet portion and the second ink outlet portion form a first step surface 213 at the connection of the outer peripheral wall. The ink supply portion 11 includes a first ink supply portion (not shown) and a second ink supply portion (not shown) that are continuously connected in the second direction (the negative direction of the X axis), and the inner diameter of the first ink supply portion is larger than the inner diameter of the second ink supply portion, so that a second step surface 114 is formed at the connection of the inner peripheral wall of the first ink supply portion and the second ink supply portion, and the seal 2 can be further prevented from moving in the second direction (the negative direction of the X axis) by the abutting action of the first step surface 213 and the second step surface 114.

It is to be understood that the seal member 2 may be provided without the third seal portion 24, with the first step surface 213 being provided on the outer peripheral wall of the second body 212 and the second step surface 114 being provided on the inner peripheral wall of the ink supply portion 11.

With continued reference to fig. 7 to 15, in some embodiments, the sealing member 2 further includes at least one fourth sealing portion 25, the fourth sealing portion 25 is disposed around the outer circumferential wall of the second body 212, and the fourth sealing portion 25 abuts against the inner circumferential wall of the ink supply portion 11, so as to improve the sealing property between the sealing member 2 and the inner circumferential wall of the ink supply portion 11, and avoid ink leakage caused by ink flowing out from a gap between the sealing member 2 and the ink supply portion 11.

Specifically, the fourth sealing portion 25 extends along the radial direction of the second body 212, and the number of the fourth sealing portion 25 may be one, two, three, four or any other number, which is not limited herein. In the embodiment of the present application, the number of the fourth sealing portions 25 may be two, and the two fourth sealing portions 25 are provided at intervals in the second direction (the negative direction of the X-axis).

With continued reference to fig. 6 and 13, further, at least one limiting groove 115 is correspondingly disposed on the inner circumferential wall of the ink supply portion 11, and the fourth sealing portion 25 can be clamped in the limiting groove 115, so that the sealing member 2 can be positioned and installed in the ink supply portion 11 to limit the length of the sealing member 2 extending into the ink supply cavity 111, and the sealing effect of the sealing member 2 on the ink supply cavity 111 can be improved.

Specifically, the stopper groove 115 is provided around the inner circumferential wall of the ink supply portion 11, and the stopper groove 115 is recessed from the inner circumferential wall of the ink supply portion 11 in the radial direction thereof. The number and the position of the limiting grooves 115 correspond to those of the fourth sealing portions 25 one to one, and are not limited herein. In the embodiment of the present application, the number of the limiting grooves 115 may be two, and the two limiting grooves 115 are spaced apart in the second direction (the negative direction of the X axis).

In some embodiments, the inner diameter of the ink outlet channel 26 gradually decreases in a direction toward the valve core 3.

Specifically, in the second direction (the negative direction of the X axis), the inner diameter of the ink outlet passage 26 gradually decreases. Since the inner diameter of the second opening 260b is smaller than the outer diameter of the ink supply needle 210, when the ink supply needle 210 is inserted into the ink outlet channel 26, the contact area between the inner circumferential wall of the sealing member 2 and the outer circumferential wall of the ink supply needle 210 is increased, and the sealing effect of the sealing member 2 on the ink supply cavity 111 is improved.

With continued reference to fig. 9 and 15, in some embodiments, the ink outlet channel 26 includes a first channel 261 and a second channel 262 that are continuously connected. The inner diameter of the first channel 261 is gradually decreased in a direction approaching the spool 3, and the inner diameter of the second channel 262 is smaller than the outer diameter of the ink supply needle 210.

Specifically, the ink outlet channel 26 includes two ink outlets, i.e., a first opening 260a and a second opening 260b, and the inner diameter of the second opening 260b is smaller than the outer diameter of the ink supply needle 210. The first passage 261 directly communicates with the first opening 260a, and the second passage 262 directly communicates with the second opening 260 b.

In the second direction (negative direction of the X-axis), the inner diameter of the first channel 261 gradually decreases until being smaller than or equal to the outer diameter of the ink supply needle 210, and the inner diameter of the second channel 262 remains constant and equal to the inner diameter of the second opening 260 b.

When the ink supply needle 210 is inserted into the first channel 261 and not inserted into the second channel 262, the inner peripheral wall of the sealing member 2 can abut against the outer peripheral wall of the ink supply needle 210, so that the ink supply needle 210 can form a seal before abutting against the valve core 3, and ink leakage of the ink supply needle 210 in the process of being inserted into the ink outlet channel 26 is avoided.

It is understood that the ink outlet passage 26 may further include a third passage (not shown in the figure), one end of which directly communicates with the first opening 260a and the other end of which directly communicates with the first passage 261.

Referring to fig. 3, fig. 6, and fig. 10 to fig. 15, the ink cartridge 100 further includes an elastic member 4, the elastic member 4 is accommodated in the ink supply chamber 111, and the valve element 3 is movably disposed in the ink supply chamber 111 through the elastic member 4.

Specifically, the elastic member 4 includes a first connection end 41 and a second connection end 42 that are opposite in the second direction (the negative direction of the X axis), the first connection end 41 abutting or being connected to the second right side wall, and the second connection end 42 abutting or being connected to the inner wall of the ink supply portion 11. The elastic member 4 may be a spring, a rubber block, or any other elastic member, which is not limited herein.

In some embodiments, the valve core 3 includes a main body 31 and a plurality of extending portions 32, wherein the plurality of extending portions 32 are disposed at intervals along a circumferential direction of the main body 31, the extending portions 32 extend from a side wall of the main body 31 facing away from the sealing member 2 along a second direction (a negative direction of the X axis) to a direction away from the main body 31, and the first connection end 41 is inserted into a space surrounded by the plurality of extending portions 32, so that the first connection end 41 abuts against the main body 31.

Specifically, the number of the extending portions 32 may be three or N, where N is a positive integer greater than three, and is not limited herein. For example, the number of the extension portions 32 may be three, and an included angle formed between two adjacent extension portions 32 may be 120 °; alternatively, the number of the extensions 32 may be six, and the included angle formed between two adjacent extensions 32 may be 60 °.

Further, a limit portion 112 is disposed in the ink supply chamber 111, and the limit portion 112 may abut against a side wall of the valve element 3 facing away from the sealing member 2.

Specifically, the limiting portion 112 extends from the inner side wall of the ink supply portion 11 in the opposite direction of the second direction (positive direction of the X axis), and after the ink supply needle 210 pushes the valve element 3 to move a certain distance in the second direction (negative direction of the X axis), the limiting portion 112 can abut against the second right side wall to limit the moving distance of the valve element 3.

With continued reference to fig. 14 and 16, the ink supply needle 210 includes a housing 214 and a pushing portion 215, wherein the housing 214 is disposed around the outer periphery of the pushing portion 215, and an ink inlet channel (not shown) is disposed in the housing 214.

Specifically, when the ink cartridge 100 is installed in the image forming apparatus, the housing 214 is inserted into the ink outlet channel 26, the pushing portion 215 can extend into the ink supply cavity 111 through the ink outlet channel 26, and the pushing portion 215 can contact the valve element 3 and push the valve element 3 to move along the second direction (the negative direction of the X axis), so that the ink stored in the ink storage cavity can flow to the image forming apparatus through the ink supply cavity 111, the second opening 260b and the ink inlet channel.

With continued reference to fig. 4 and 16, the ink supply mechanism 200 further includes a mounting cylinder 220 disposed around the outer periphery of the ink supply needle 210, and a mounting cavity (not shown) is disposed in the mounting cylinder 220.

Specifically, when the ink cartridge 100 is mounted to the image forming apparatus, at least a portion of the ink supply portion 11 is inserted into the mounting chamber, so that the mounting position of the ink cartridge 100 in the image forming apparatus can be positioned to ensure that the ink supply needle 210 can be smoothly inserted into the ink outlet passage 26.

Further, the outer circumferential wall of the ink supply portion 11 is provided with at least one guide groove 116, and the inner circumferential wall of the mounting cylinder 220 is correspondingly formed with at least one guide portion 221, and the guide portion 221 is movable along the guide groove 116.

Specifically, the guide groove 116 is recessed from the outer peripheral wall of the ink supply portion 11, and the guide groove 116 extends in the second direction (the negative direction of the X axis). The guide portion 221 projects from the inner peripheral wall of the mounting tube 220 in the radial direction thereof. In the process of installing the ink cartridge 100 in the image forming apparatus, the guide portion 221 may be engaged with the guide groove 116 and moved along the guide groove 116, which facilitates installation of the ink cartridge 100 and insertion of the ink supply needle 210.

The number of the guide grooves 116 may be one, two, three, four, or any other number, and the number and the positions of the guide portions 221 correspond to those of the guide grooves 116 one to one, and are not limited herein. For example, the number of the guide grooves 116 and the guide portions 221 may be three, the three guide grooves 116 may be arranged at intervals in the circumferential direction of the ink supply portion 11, the three guide portions 221 may be arranged at intervals in the circumferential direction of the mounting cylinder 220, an angle formed between adjacent two of the guide grooves 116 may be 120 °, and an angle formed between adjacent two of the guide portions 221 may be 120 °.

With continued reference to fig. 6, 15, and 16, in some embodiments, the outer circumferential wall of the ink supply portion 11 is provided with a third step surface 113, and the inner circumferential wall of the mounting barrel 220 is provided with at least one latching portion 222, and the latching portion 222 can abut against the third step surface 113. The ink supply needle 210 is prevented from being pulled out of the ink outlet passage 26 due to shaking by the abutting engagement of the third step surface 113 and the catch portion 222.

Specifically, the number of the locking portions 222 may be one, two, three, four or any other number, and is not limited herein. In the embodiment of the present application, the number of the locking portions 222 may be three, and an included angle formed between two adjacent locking portions 222 may be 120 °.

With continued reference to fig. 15 and fig. 16, in some embodiments, the ink supply mechanism 200 further includes a positioning hole 230, the front end surface 10e of the ink cartridge 100 includes a stopping portion 12, and at least a portion of the stopping portion 12 can be inserted into the positioning hole 230 to limit the length of the ink supply needle 210 extending into the ink outlet channel 26.

Specifically, the blocking portion 12 may be connected to the case 1 by means of a plug-in fit, a threaded fit, welding, adhesion, integral molding, and the like, which is not limited herein. The material of the blocking portion 12 may be rubber or any other material with elasticity, so as to prevent the blocking portion 12 from rigidly contacting the ink supplying mechanism 200.

With continued reference to fig. 1 to 3, the ink cartridge 100 further includes a chip 5, a mounting frame 6, and a light shielding member 7, wherein the chip 5 is disposed on the upper end surface 10a through the mounting frame 6, and the light shielding member 7 is disposed on the upper end surface 10a.

Specifically, when the ink cartridge 100 is mounted to the image forming apparatus, a contact mechanism (not shown in the drawings) provided in the image forming apparatus may contact the chip 5 to achieve electrical connection therebetween, thereby achieving electrical communication between the image forming apparatus and the ink cartridge 100. The light shielding member 7 may shield detection light emitted from a detection device (not shown) provided in the image forming apparatus to indicate whether the ink cartridge 100 is mounted in place.

Compared with the prior art, in the utility model provides an in the ink horn 100, when the ink horn 100 was installed in imaging device, supply ink needle 210 pegs graft in going out black passageway 26 and push case 3 and move to the direction of keeping away from sealing member 2, make the ink can flow to supply ink needle 210, because the internal diameter of one of them ink outlet is less than the external diameter of supplying ink needle 210, make the internal perisporium that this body portion 21 is close to this ink outlet can with the peripheral wall butt of supplying ink needle 210 and the clearance does not appear, and the first sealing 22 that sets up around this ink outlet also can with the peripheral butt of supplying ink needle 210 and the clearance does not appear, improved the sealing action to supplying ink portion 11 after sealing member 2 is punctured, avoided ink horn 100 to appear leaking the china ink in the use; when the ink cartridge 100 is removed from the image forming apparatus, the valve element 3 may move in a direction close to the sealing member 2, so that the sealing member 2 may abut against the valve element 3 again, thereby achieving secondary sealing of the ink supply portion 11 and preventing ink leakage after the ink cartridge 100 is removed.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An ink cartridge detachably mountable to an image forming apparatus, the image forming apparatus being provided therein with an ink supply needle, the ink cartridge comprising:

the ink supply needle is arranged on the surface of the box body facing the ink supply needle, and an ink supply cavity is arranged in the ink supply part in a penetrating manner;

the valve core is movably arranged in the ink supply cavity; and

the sealing element comprises a body part and a first sealing part, wherein at least part of the body part is accommodated in the ink supply cavity, an ink outlet channel is arranged in the body part in a penetrating manner, the ink supply needle can be inserted into the ink outlet channel, the ink outlet channel comprises at least one ink outlet, the inner diameter of one ink outlet is smaller than the outer diameter of the ink supply needle, the first sealing part is arranged around one ink outlet, and the first sealing part can be abutted against the outer peripheral wall of the ink supply needle.

2. The ink cartridge as claimed in claim 1, wherein a side wall of the main body facing the valve body is provided with one of the ink outlets, the first seal portion extends from the side wall of the main body facing the valve body in a direction away from the main body, and the first seal portion is abuttable against the side wall of the valve body facing the seal member.

3. The ink cartridge according to claim 1 or 2, wherein the sealing member further comprises a second sealing portion provided in connection with the ink discharge passage to close the ink discharge passage, and the second sealing portion is provided with an opening whose open/closed state is variable.

4. The ink cartridge as claimed in claim 1 or 2, further comprising a sealing film provided at least one of the ink outlets, the sealing film being penetrable by the ink supply needle.

5. The ink cartridge as claimed in claim 1 or 2, wherein the main body includes a first body and a second body, the first body being disposed outside the ink supply chamber, the second body being accommodated in the ink supply chamber;

the sealing element further comprises a third sealing portion, the third sealing portion extends from the peripheral wall of the first body to the direction far away from the first body, and the third sealing portion is abutted to the end wall of the ink supply portion.

6. The ink cartridge according to claim 5, wherein an outer peripheral wall of the second body is provided with a first step surface, an inner peripheral wall of the ink supply portion is provided with a second step surface, and the first step surface abuts against the second step surface.

7. The ink cartridge of claim 5, wherein the seal further includes at least one fourth seal portion disposed around an outer peripheral wall of the second body, the fourth seal portion abutting an inner peripheral wall of the ink supply portion.

8. The ink cartridge as claimed in claim 1 or 2, wherein an inner diameter of the ink outlet passage is gradually decreased in a direction approaching the valve core.

9. The ink cartridge according to claim 1 or 2, wherein the ink outlet passage includes a first passage and a second passage which are continuously connected, and an inner diameter of the first passage is gradually decreased in a direction close to the valve body, and an inner diameter of the second passage is smaller than an outer diameter of the ink supply needle.

10. The ink cartridge as claimed in claim 1, further comprising an elastic member received in the ink supply chamber, wherein the valve element is movably disposed in the ink supply chamber through the elastic member.

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