CN201427442Y

CN201427442Y - Ink cartridge with negative pressure balancing one-way valve

Info

Publication number: CN201427442Y
Application number: CN2009201555242U
Authority: CN
Inventors: 冼均祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-05-11
Filing date: 2009-05-11
Publication date: 2010-03-24
Anticipated expiration: 2019-05-11

Abstract

An ink cartridge with a negative pressure balancing one-way valve relates to the technical field of ink cartridges of an ink printer, and resolves problems that negative pressure balancing one-way valves of the existing ink storage chambers and ink supply chambers are unstable in sealing property, and negative pressure of the ink supply chambers is not balanced. The technical scheme includes thatthe ink cartridge comprises a cartridge body and the negative pressure balancing one-way valve, an ink storage chamber and an ink supply chamber are arranged inside the box body, an ink passage is arranged between the ink storage chamber and the ink supply chamber, the ink passage is communicated with the ink storage chamber and the ink supply chamber, the negative pressure balancing valve which is arranged inside an inner cavity of the ink passage comprises a valve cover equipped with an ink through hole and an elastic silicon part equipped with a sealing plug, the sealing plug is in fittingly sealing connection with the ink through hole of the valve cover, the valve cover is in sealing connection with an opening at one end of the ink passage connected with the ink storage chamber, and the elastic silicon part is arranged on one surface of the valve cover connected with the ink supply chamber. The ink cartridge is simple in structure, fine in sealing effect and fine in ink supply effect, and further, the negative pressure of the ink supply chamber is balanced.

Description

A kind of print cartridge that has the balanced check valve of negative pressure

Technical field

The utility model relates to a kind of print cartridge technical field of ink-jet printer, is specifically related to include the print cartridge in ink storage chamber and ink supply chamber.

Background technology

Ink-jet printer cartridge commonly used mainly contains two kinds, a kind of is the print cartridge that is incorporated with compressed sponge in inner chamber, sponge absorption ink, near ink supply port sponge forms the capillary of high compactionization, ink is concentrated near the ink supply port the sponge, and the print cartridge of this structure is because the absorption of sponge self, at the quantity of ink of print cartridge inside not for a long time, also residual a large amount of printing ink can't be discharged on the sponge, causes the serious wasting of resources; Another print cartridge at head it off is to be divided into two cavity volumes in the print cartridge, wherein, a big cavity volume is used to store temporary transient no ink, the cavity volume that another one is little is used to deposit and is about to discharge the ink that print cartridge offers printer nozzle, this print cartridge is in order to guarantee continuously ink supply equably, between ink storage chamber and ink supply chamber, be provided with the balanced check valve of a negative pressure, the negative pressure state of an equilibrium is provided for the ink supply chamber, and the balanced check valve sealing of the negative pressure between two cavity volumes of existing this print cartridge is poor, the sealing instability, cause the negative pressure in the ink supply chamber unbalanced, influence print quality.

Summary of the invention

In sum, the purpose of this utility model is that negative pressure unbalanced problem in ink supply chamber proposes a kind of print cartridge that has the balanced check valve of negative pressure at the sealing instability of the balanced check valve of negative pressure in existing ink storage chamber and ink supply chamber.

The technical scheme that adopts is: comprising: the balanced check valve of box body and negative pressure, comprise ink storage chamber and ink supply chamber in the described box body, and be provided with an ink channel between ink storage chamber and ink supply chamber, ink channel is communicated with ink storage chamber and ink supply chamber; Described negative pressure balanced valve is located in the inner chamber of ink channel, the balanced check valve of described negative pressure comprises a valve cover and an elastic silica gel spare that is provided with sealing-plug that is provided with the ink through hole, sealing-plug is connected with the ink through hole fitted seal of valve cover, valve cover is tightly connected with an end opening that is connected ink storage chamber of ink channel, and elastic silica gel spare is located at the one side that valve cover connects the ink supply chamber.

As the technical scheme that the utility model is further improved be: described elastic silica gel spare is be shaped as one with the identical silica gel thin slice of ink road intracavity section, sealing-plug is located at the center of elastic silica gel spare, and the non-central location of elastic silica gel spare is provided with an ink outlet at least.

The quantity of described ink outlet is four, is evenly distributed on the elastic silica gel spare.

Be provided with the step of a circle projection in the inner chamber of described ink channel, the edge of elastic silica gel spare is sandwiched between step and the valve cover.

On the described step with elastic silica gel spare joint face be provided with one the circle groove, elastic silica gel spare be provided with one the circle with the groove fit clamping along the limit.

The sealing-plug bullet of described elastic silica gel spare, the ink through hole edge of described valve cover is provided with the conical socket with the sealing-plug fitted seal.

The lid of described valve cover enters breach along being provided with an ink.

The material of described valve cover is a plastic construction.

The beneficial effects of the utility model are: the sealing-plug on the elastic silica gel spare is connected with the ink through hole fitted seal of valve cover, because the rubber-like characteristic of silica gel own, need not to increase in addition spring, just can apply a suitable dynamics to sealing-plug, it is sealed the ink through hole, ink and air can only unidirectionally be passed through, after ink in the ink supply chamber is discharged, open ink replenishing in the ink supply chamber at the atmospheric action lower valve, simple in structure, good sealing effect, ink supply chamber negative pressure is even, for the printer nozzle ink supply effective.The valve that valve of the present utility model and elastic silica gel spare are formed can also be used for the air inlet through hole of box body, can establish two valves as required on the air admission hole, and one is used to control air inlet, and another is used to control exhaust.

Description of drawings

Fig. 1 is the structural representation in the utility model front;

Fig. 2 is the A-A cross section structure schematic diagram of Fig. 1;

Fig. 3 is the structural representation of the utility model reverse side;

Fig. 4 is a decomposition texture schematic diagram of the present utility model;

Fig. 5 is the structural representation at another visual angle of decomposition texture of the present utility model;

Fig. 6 A is an elastic silica gel spare perspective view of the present utility model;

Fig. 6 B is the main-vision surface structural representation of elastic silica gel spare of the present utility model;

Fig. 6 C is the B-B cross section structure schematic diagram among Fig. 6 B;

Fig. 7 A is the perspective view of valve cover of the present utility model;

Fig. 7 B is the structural representation of valve cover main-vision surface of the present utility model;

Fig. 7 C is the C-C cross section structure schematic diagram among Fig. 7 B;

Fig. 8 is the utility model work structuring schematic diagram.

The specific embodiment

Below in conjunction with the drawings and specific embodiments structure of the present utility model is further described:

With reference to Fig. 1～5 and Fig. 6 A, 6B, 6C, 7A, 7B, shown in the 7C, two cavity volumes are arranged in the box body 1 of the present utility model, one of them bigger cavity volume is to be used to store the ink storage chamber 12 that does not temporarily use ink, another less cavity volume is the ink supply chamber 11 that is used to store soon the ink of discharging from the ink supply port 13 of box body 1,11 in ink storage chamber 12 and ink supply chamber are provided with an ink channel 14, in ink channel 14, be provided with the check valve of a negative pressure equilibrium of forming by valve cover 2 and elastic silica gel spare 3, the check valve that ink in the ink supply chamber 12 can via through holes 121 enters behind the reverse side of box body the negative pressure equilibrium of forming from valve cover 2 and elastic silica gel spare 3 reaches ink supply chamber 11, and the inks in the ink supply chamber 11 can not be refunded ink storage chamber.

Valve cover 2 sealings are placed on the end that ink channel 14 places box body 1 back side, the center of valve cover 2 is provided with an ink through hole 21, the lid of valve cover 2 places the corresponding position of the end breach at box body 1 back side to be provided with an ink with ink channel 14 to enter breach 22 along being provided with one, all be provided with one deck PP film on the positive and negative two sides of box body, ink channel 14 both ends open edges are sealed by the PP film.On ink channel 14 internal chamber walls, be provided with the step 141 of a circle projection, also be provided with a circle groove on the step 141, elastic silica gel spare 3 is located in the middle of step and the valve gap, the edge of elastic silica gel spare 3 be provided with a circle and groove fit clamping along the limit 33, be provided with the sealing-plug 31 of a bullet at elastic silica gel spare 3, ink through hole 21 fitted seal of sealing-plug 31 and valve gap 2, in order to make sealing effectiveness better, the edge of ink through hole 21 is provided with the conical socket 23 with the sealing-plug fitted seal, is distributed with four ink outlets 32 on the elastic silica gel spare 3 equably.

Operation principle of the present utility model, shown in Fig. 8, when the utility model is installed on when using on the printer, after ink in the ink supply chamber enters printer nozzle, negative pressure increases in the ink supply chamber, and ink storage chamber is provided with the passage that is communicated with box body outward, ink channel 14 two ends are communicated with ink supply chamber and ink storage chamber, under atmospheric pressure, the sealing-plug 31 that is located on the elastic silica gel spare 3 will be open, i.e. valve open, ink in the ink storage chamber enters the ink through hole 21 from the breach 23 of valve gap 2, then, four ink outlets 32 just enter the ink supply chamber on elastic silica gel spare 3, and the negative pressure state in the ink supply chamber reduces, after equilibrium, under the elastic force effect that elastic silica gel spare 3 has, ink through hole 21 is by cone seal plug 31 sealing, i.e. valve closings.Elastic silica gel spare 3 cooperates with valve gap 2, opens easily, also is easy to close, and makes to possess balanced negative pressure in the ink supply chamber, continuously equably for printer nozzle provides ink, improves print quality.

Claims

1, a kind of print cartridge that has the balanced check valve of negative pressure comprises: the balanced check valve of box body and negative pressure, comprise ink storage chamber and ink supply chamber in the described box body, and be provided with an ink channel between ink storage chamber and ink supply chamber, ink channel is communicated with ink storage chamber and ink supply chamber; Described negative pressure balanced valve is located in the inner chamber of ink channel, it is characterized in that: the balanced check valve of described negative pressure comprises a valve cover and an elastic silica gel spare that is provided with sealing-plug that is provided with the ink through hole, sealing-plug is connected with the ink through hole fitted seal of valve cover, valve cover is tightly connected with an end opening that is connected ink storage chamber of ink channel, and elastic silica gel spare is located at the one side that valve cover connects the ink supply chamber.

2, a kind of print cartridge that has the balanced check valve of negative pressure according to claim 1, it is characterized in that: described elastic silica gel spare is be shaped as one with the identical silica gel thin slice of ink road intracavity section, sealing-plug is located at the center of elastic silica gel spare, and the non-central location of elastic silica gel spare is provided with an ink outlet at least.

3, a kind of print cartridge that has the balanced check valve of negative pressure according to claim 2, it is characterized in that: the quantity of described ink outlet is four, is evenly distributed on the elastic silica gel spare.

4, according to claim 1 or 2 or 3 described a kind of print cartridges that have the balanced check valve of negative pressure, it is characterized in that: be provided with the step of a circle projection in the inner chamber of described ink channel, the edge of elastic silica gel spare is sandwiched between step and the valve cover.

5, a kind of print cartridge that has the balanced check valve of negative pressure according to claim 4 is characterized in that: be provided with a circle groove with elastic silica gel spare joint face on the described step, elastic silica gel spare be provided with a circle and groove fit clamping along the limit.

6, a kind of print cartridge that has the balanced check valve of negative pressure according to claim 1, it is characterized in that: the sealing-plug bullet of described elastic silica gel spare, the ink through hole edge of described valve cover is provided with the conical socket with the sealing-plug fitted seal.

7, a kind of print cartridge that has the balanced check valve of negative pressure according to claim 1, it is characterized in that: the lid of described valve cover enters breach along being provided with an ink.

8, a kind of print cartridge that has the balanced check valve of negative pressure according to claim 1, it is characterized in that: the material of described valve cover is a plastic construction.