CN2871203Y - Ink box - Google Patents

Abstract

The utility model discloses a ink box comprising a body with an ink outlet to contain ink, a cover to seal the body in which an ink overflow buffer is provided, a first air inlet to communicate the ink overflow buffer with the outside air, a second air inlet to communicate the ink overflow buffer with the body, wherein, two ink overflow buffers which link to each other by a groove on the cover are provided at least. It has advantages of good anti-overflow of ink by guiding air, etc.

Description

Print cartridge

Technical field

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

Background technology

At present, the employed print cartridge of ink-jet printer be by cartridge body that is shaped on ink outlet port and sealing cartridge body the ink box cover seam form, add ink injection in the cavity between cartridge body and ink box cover, also be shaped on the print cartridge with cartridge body in the air admission hole that is interlinked to the outside.When printer is worked, utilize the suction function of printer ink-sucking port, will be installed on the printer ink in the print cartridge from the ink outlet port sucking-off, realize inkjet printing, air enters in the cartridge body from air admission hole, replenishes the ink of sucking-off, reaches pressure balance.

No. 200520002528.9 Chinese patents of ZL disclose a kind of print cartridge anti-overflow inlet duct, and it is that two black cushion chambers that overflow are set in the interlayer of ink box cover, and gas enters the first excessive black cushion chamber from the top, enter cartridge body from the second excessive black cushion chamber bottom or sidepiece.First, second overflows and is provided with dividing plate between the black cushion chamber, and dividing plate is provided with through hole, makes them be interconnected.Overflowing also is equipped with mandruka in the black cushion chamber, the ink that overflows in order to absorption.

Print cartridge with above-mentioned anti-overflow inlet duct, though can prevent to a certain extent that the ink in the print cartridge is excessive, but because of two intercommunicating pores that overflow between the black cushion chamber are located on the dividing plate, the ink underfill second excessive black cushion chamber that overflows, or be not arranged on second and overflow mandruka in the black cushion chamber when adsorbing fully, the ink that overflows promptly can flow into the first excessive black cushion chamber, and then overflow from the first black cushion chamber top of overflowing, fail to make full use of the overflow space of black cushion chamber and the adsorption capacity of the interior mandruka of black cushion chamber that overflows, anti-overflow air guide poor effect.

Summary of the invention

The utility model has overcome deficiency of the prior art, provides a kind of anti-overflow air inlet effective print cartridge.

For achieving the above object, the print cartridge that the utility model provides comprises: cartridge body, be used to hold ink, and it is provided with an ink outlet port; Ink box cover is used to seal cartridge body, and inside is provided with the black cushion chamber that overflows; First air admission hole is communicated with the ambient atmosphere and the black cushion chamber that overflows; Second air admission hole is communicated with overflow black cushion chamber and cartridge body, and wherein, the black cushion chamber that overflows has two at least, is communicated with by the groove that is located on the ink box cover each other.

Print cartridge according to above scheme, be communicated with by the groove that is located on the ink box cover between the black cushion chamber because of overflowing, therefore after only being full of in one overflows black cushion chamber, the ink that overflows just can be continuously introduced to the next black cushion chamber that overflows, and has improved overflowing the barrier effect of ink.

Scheme is to place the ink sorbing material in the black cushion chamber that overflows preferably, can be with the ink absorption of overflowing, and anti-overflow China ink better effects if.

Another better scheme is to place waterproof ventilative material in the black cushion chamber that overflows, and can strengthen stopping ink.

Description of drawings

Fig. 1 is the structural representation of the first embodiment print cartridge;

Fig. 2 is the assembling schematic diagram of the first embodiment ink box cover;

Fig. 3 is the vertical view of lid of the ink box cover of the first embodiment print cartridge;

Fig. 4 be the first embodiment print cartridge ink box cover lid upward view;

Fig. 5 is the structural representation of the ink box cover of the second embodiment print cartridge;

Fig. 6 is the structural representation of the ink box cover of the 3rd embodiment print cartridge.

The utility model will be further described below in conjunction with drawings and the specific embodiments.

The specific embodiment

First embodiment:

Referring to Fig. 1, print cartridge 1 comprises that one holds the cartridge body 2 of ink, and its underpart is provided with an ink outlet port 3, and the top is by an ink box cover 4 sealings.

Referring to Fig. 2, ink box cover 4 comprises lid 41, slim 42.Lower surface at lid 41 is provided with the outstanding fence 411 that exceeds lid 41, is separated into three parts with dividing plate 412,413 in the middle of the fence 411, forms the black cushion chamber 51,52,53 that overflows, and wherein, is provided with ink sorbing material 61,62 in the black cushion chamber 51,53 that overflows.Slim 42 can be bonding or thermal weld on fence 411, the sealing black cushion chamber 51,52,53 that overflows.Described slim can be sealing film, also can be plastic tab or other similar material.

Below with reference to Fig. 3, Fig. 4 describes the air guide direction of print cartridge in detail.The air guide channel 43 of the complications of ambient atmosphere through being located at lid 41 upper surfaces, enter the black cushion chamber 51 that overflows along arrow a direction from first air admission hole 414, afterwards along arrow b, the gas port 511 of c direction in being located at the black cushion chamber 51 that overflows, be located at the groove 416 on lid 41 surfaces, the gas port 521 that is located in the black cushion chamber 52 that overflows enters the black cushion chamber 52 that overflows, again along arrow d, e, f, the g direction is in turn through being located at the gas port 522 in the black cushion chamber 52 that overflows, be located at the groove 417 on lid 41 surfaces, be located at the gas port 531 on the dividing plate 413,532, be located at the groove 418 on lid 41 surfaces, the gas port 533 that is located in the black cushion chamber 53 that overflows enters the black cushion chamber 53 that overflows, at last along arrow h, the gas port 534 of i direction in being located at the black cushion chamber 53 that overflows, be located at the groove 419 on lid 41 surfaces, be located at second air admission hole 415 on the lid, be located at the hole 421 (referring to Fig. 2) on slim 42, flow into cartridge body 1 inside.

When print cartridge 1 because of motion or environmental change when causing ink excessive, the ink that overflows will promptly overflow into black cushion chamber 53 earlier along flowing in the opposite direction with above-mentioned air guide side, overflow into black cushion chamber 52,51 more in turn.The intercommunicating pore of three excessive black cushion chambers of cause all is to be communicated with by the groove that is located at lid 41 surfaces, so have only when the black cushion chamber that overflows is full of ink, just can overflow to the excessive black cushion chamber of the next one, make full use of the space in the excessive black cushion chamber, effectively prevent the excessive of ink.

In addition, place the ink sorbing material 61,62 in the black cushion chamber 51,53 that overflows also can give full play to suction-operated, stop that further ink flows out.

Second embodiment:

Referring to Fig. 5, the structure and first embodiment of the ink box cover 4 of present embodiment print cartridge are basic identical, and wherein identical structure is represented with identical label in the present embodiment.The present embodiment and the first embodiment difference are that the fence of giving prominence to 411 is located at lid 41 upper surfaces, be separated into three parts with dividing plate 412 in the middle of the fence 411, form the black cushion chamber 51,52,53 that overflows, wherein, be provided with waterproof ventilative material 71,72 in the black cushion chamber 51,53 that overflows.Groove 416,417,418 (not shown), 419 that are communicated with the overflow black cushion chamber 51,52,53 and second air admission hole 415 all are located on slim 42.

The 3rd embodiment:

Referring to Fig. 6, the structure and first embodiment of the ink box cover 4 of present embodiment print cartridge are basic identical, and wherein identical structure is represented with identical label in the present embodiment.The present embodiment and the first embodiment difference are that first air admission hole 414 is located at the sidepiece of lid 41, place two-layer different ink sorbing material 611,612,621,622 respectively in the black cushion chamber 51,53 that overflows.

Print cartridge of the present utility model, by rationally utilizing the structure of ink box cover, the a plurality of excessive black cushion chambers of design on ink box cover, arrange different runners and place different leakproofing materials, can in the efficient of utilizing leakproofing material to greatest extent, effectively block the capillarity of ink, prevent that well ink is excessive.

Be not limited in the foregoing description based on variation of the present utility model, also multiple variation can be arranged, be located on slim as first air admission hole, or place ink sorbing material and waterproof and breathable material etc. simultaneously in the black cushion chamber that overflows, the effect that they are obtained is identical.These simple structural changes still belong to the protection domain of the utility model requirement.

Claims (7)

1, print cartridge comprises:

Cartridge body is used to hold ink, and it is provided with an ink outlet port;

Ink box cover is used to seal cartridge body, and inside is provided with the black cushion chamber that overflows;

First air admission hole is communicated with ambient atmosphere and described excessive black cushion chamber;

Second air admission hole is communicated with described excessive black cushion chamber and described cartridge body;

It is characterized in that:

Described excessive black cushion chamber has two at least, is communicated with by the groove that is located on the described ink box cover each other.

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

At least one described excessive black cushion chamber is built-in with the ink sorbing material.

3, according to the described print cartridge of claim 1, it is characterized in that.

At least one described excessive black cushion chamber is built-in with waterproof ventilative material.

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

Described first air admission hole is located at the sidepiece of described ink box cover.

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

Described ink box cover comprises:

Lid, the one side is provided with outstanding fence, forms described excessive black cushion chamber; With

Slim, in order to seal described excessive black cushion chamber.

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

Described groove is located at the upper surface of described lid.

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

Described groove is located at described slim upper surface.

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