CN2843850Y

CN2843850Y - Ink box

Info

Publication number: CN2843850Y
Application number: CN 200520120101
Authority: CN
Inventors: 乔怀信; 何永刚
Original assignee: Print Rite Technology Development Co Ltd of Zhuhai
Current assignee: Print Rite Technology Development Co Ltd of Zhuhai
Priority date: 2005-12-04
Filing date: 2005-12-04
Publication date: 2006-12-06
Anticipated expiration: 2015-12-04

Abstract

The utility model relates to an ink box which comprises a box body, an ink outlet and an air guide hole, wherein the box body is provided with an ink cavity to hold ink, the ink outlet is provided with a sealing ring and is arranged at the lower part of the box body, the air guide hole is arranged at the side wall of the ink outlet, and the gas guide hole is sealed by an outlet sealing film at the ink outlet point. The ink box has the advantages of simple structure, low cost, ink overflow prevention, etc.

Description

Print cartridge

Technical field

The utility model relates to a kind of print cartridge that ink-jet printer is used.

Background technology

Print cartridge generally includes the black chamber that holds ink, to the ink supply port of ink-jet printer ink supply and atmosphere is imported the gas port in black chamber.During printing, with the minimizing of ink in the inking chamber, the air outside the black chamber is mended into black chamber by gas port, and the pressure equilibrium with inside and outside the maintenance print cartridge makes ink supply normal.

Existing a kind of print cartridge, gas port is located on the print cartridge cover, and is covered by a skim.During use, the user needs the air guide film is torn could air guide.This kind structure since after the air guide black chamber directly communicate with atmosphere, when difference variation or print cartridge moved back and forth, ink flow on the cover easily, the surrounding environment of making dirty.In addition, produce air guide film discarded object behind the dyestripping, contaminated environment.

The application of CN1603122A Chinese invention patent discloses another print cartridge, comprises a black chamber, an ink supply port and a valve system, wherein valve system have one first open-closed portion and one second opens-closed portion.This print cartridge can utilize the motive force of printer ink-providing pin, by first open-closed portion opens ink flow path, second open-closed portion opens the Atmospheric Flow passage, and utilize the restoring force of ink supply port inner spring, by first open-closed portion and second opens-closed portion closes ink flow path and Atmospheric Flow passage.Though the air guide anti-overflow effect of this kind print cartridge is better, member is many, the manufacturing process complexity, and cost is higher.

Summary of the invention

Main purpose of the present utility model provides a kind of air guide anti-overflow print cartridge simple in structure;

Another purpose of the present utility model provides a kind of print cartridge with better anti-overflow China ink function.

For achieving the above object, the print cartridge that the utility model provides comprises a box body, has the black chamber that holds ink, an ink outlet port, in establish sealing ring, one is located at the gas port of ink outlet port sidewall, wherein, gas port seals film sealing by piercing through of ink outlet port place.

One better scheme is to be provided with on the sidewall of sealing ring and the corresponding breach of gas port.

Print cartridge according to above scheme, shared one of gas port and ink outlet port seal film, structure and technology are all comparatively simple, utilize the ink supply pin as the air guide driving element, pierce through when sealing film, opened air flue, not only simple in structure, low cost of manufacture, and also easy to operate, save the preceding dyestripping process of existing print cartridge installation, and avoided discarded object.

Better scheme is to be provided with the black cushion chamber that overflows between gas port and black chamber, and can be in the black cushion chamber that overflows placing porous bulk material or waterproof ventilative material, can prevent that not only the ink in the print cartridge is excessive, and atmosphere enters black chamber along gas port, the black cushion chamber that overflows, passage through a bending has reduced ink meaningless volatilization in use.

Description of drawings

Fig. 1 is the assembling schematic diagram of the utility model print cartridge;

Fig. 2 is the cross-sectional view under the utility model print cartridge duty;

Fig. 3 is the structural representation that the utility model print cartridge unwelded side face seals film.

The specific embodiment:

The utility model is described in further detail below in conjunction with drawings and Examples.

Referring to Fig. 1, print cartridge 1 comprises a rectangular substantially box body 2, and an ink outlet port 3 is arranged in the bottom of box body 2, by sealing ring 4 sealings with self-closing function.The sidewall of ink outlet port 3 is provided with a gas port 5 that leads to black chamber, is provided with corresponding breach 6 with gas port 5 corresponding positions on the sidewall of sealing ring 4.Be welded with one deck on the least significant end end face of ink outlet port 3 and seal film 7, be used to seal ink outlet port 3 and gas port 5.

Closing on ink outlet port 3 places at box body 2 has first a black cushion chamber 8 that overflows that communicates with gas port 5, and the built-in first porosity and looseness medium 9 is as sponge etc.

On a side 10 of box body 2, be provided with second overflow black cushion chamber 11 and valve pocket 12, one sides and seal film 13 and be welded on this side 10, be used to seal second overflow black cushion chamber 11 and the valve pocket 12.The second excessive black cushion chamber 11 is separated into two parts 11a that the bottom is communicated with by a dividing plate 14,11b, and in the 11a side, the second excessive black cushion chamber 11 passes through the air slot 15 and first connecting hole 16 and the first excessive black cushion chamber 8 and links to each other.In the 11b side, be provided with second connecting hole 17 and lead to black chamber 18 (referring to Fig. 2).The second porosity and looseness medium 19 places the 11b side of the second excessive black cushion chamber 11.Be provided with a valve module 20 in the valve pocket 12, through a black liquid flow channel 21 and an ink-guiding hole 22 to ink outlet port 3 ink supply.

Introduce the air-guide type of print cartridge 1 referring to Fig. 2, Fig. 3.Fig. 2 is the cross-sectional view under print cartridge 1 duty, and Fig. 3 is the structural representation of print cartridge 1 unwelded side face when sealing film 13.

China ink has a breather pipe 23 in the chamber 18, and its top is higher than the ink level in the black chamber 18.Because of gas port 5 (see figure 1)s and ink outlet port 3 by sealing film 7 sealings, when print cartridge 1 is mounted to printer, the ink supply pin 24 1 of printer pierces through and seals film 7, atmosphere just enters the first excessive black cushion chamber 8 through gas port 5 (see figure 1)s, and along solid arrow direction among Fig. 2, Fig. 3, enter the second excessive black cushion chamber 11 through first connecting hole 16 and air slot 15 earlier, enter black chamber 18 through second connecting hole 17, breather pipe 23 again, thereby realize air guide.In this process, atmosphere system is communicated with black chamber 18 along the air guide channel of a bending, volatilizees through air guide channel so can reduce ink.

Because the variation of capillarity and external environmental condition, the ink that enters in the breather pipe 23 can be temporarily stored in first black liquid cushion chamber 8, the second black liquid cushion chamber 11, the first porosity and looseness medium 9, the second porosity and looseness medium 19 can adsorb them, therefore can avoid ink excessive through gas port 5.

In addition, because of in the installation process, seal film 7 air guides to black chamber 18 from what ink supply pin 24 pierced through ink outlet port 3, carry out that to the sealing rings 4 that pierce through in the ink supply port 3 time difference is arranged between the ink supply, so can avoid ink refluence that ink outlet port 3 may occur and the phenomenon that influences printing effect.

Variation based on the utility model design is not limited in the foregoing description, also multiple variation can be arranged, and can only establish one as black liquid cushion chamber, and also available in addition waterproof ventilative material such as waterproof and breathable plug etc. replace the porosity and looseness medium.The effect that they are obtained is identical.These simple structural changes still belong to the protection domain of the utility model requirement.

Claims

1, print cartridge comprises:

Box body has the black chamber that holds ink;

Ink outlet port is provided with sealing ring in it;

It is characterized in that:

Gas port is arranged on the sidewall of ink outlet port;

Gas port seals the film sealing by piercing through of ink outlet port place.

2, according to the described print cartridge of claim 1, it is characterized in that:

The sidewall of described sealing ring is provided with and the corresponding breach of described gas port.

3, according to claim 1 or 2 described print cartridges, it is characterized in that:

Described print cartridge also is provided with the excessive black cushion chamber that communicates with gas port.

4, according to the described print cartridge of claim 3, it is characterized in that:

Described excessive black cushion chamber is built-in with the porosity and looseness material.

5, according to the described print cartridge of claim 3, it is characterized in that:

Described excessive black cushion chamber is built-in with waterproof ventilative material.

6, according to the described print cartridge of claim 3, it is characterized in that:

Described excessive black cushion chamber has two.