CN101370595A

CN101370595A - Squeeze foamer

Info

Publication number: CN101370595A
Application number: CN200780002835.9A
Authority: CN
Inventors: E·I·M·范德海登
Original assignee: Rexam Airspray NV
Current assignee: Albea Alkmaar NV
Priority date: 2006-01-24
Filing date: 2007-01-23
Publication date: 2009-02-18
Anticipated expiration: 2027-01-23
Also published as: TW200734058A; NL1030994C2; TWI377093B; CN101370595B

Abstract

The invention relates to a foam- forming assembly for forming a foam, comprising a housing having an air passage and a liquid passage which each end in a mouth and which are in communication with a dispensing passage which ends in a dispensing opening, and a valve body. The invention is characterized in that the mouth of the liquid passage is annular and the mouth of the air passage and an entry port of the dispensing passage are substantially provided on the circumference of an imaginary circle, in which between the annular mouth of the liquid passage and the mouth of the air passage and/or the entry port of the dispensing passage an annular sealing surface is provided, against which, in rest position, the valve body sealingly engages, and in which during dispensing the valve body becomes detached of the sealing surface such that the mouth of the air passage,; the mouth of the liquid passage and the entry port of the dispensing passage substantially simultaneously come in fluid communication with each other.

Description

Squeeze foamer

Technical field

The present invention relates to a kind of foam formation assembly that is used for the distributor of dispense foam and can be used for forming foam.More particularly, the present invention relates to a kind of no pump squeeze foamer.

Background technology

US5,037,006 has disclosed a kind of distributor that is used for dispense foam.This known allocation device comprises the artificial compressible container that is used for storaging liquid and air.This container comprises the wherein adaptive opening that housing is arranged.In this housing, be provided with fluid passage and air duct, fluid passage and air duct are at minute timing and the distribution channel connection that ends at dispense aperture.Distributor also comprises valve body, and valve body is at the mouth of resting position seal fluid passage and the mouth of air duct.This valve body is the dish type flexible piece that remains on the circumference place and compress the mouth of fluid passage and air duct by spring.

By compression/squeeze receptacle, the pressure in the container increases, and therefore fluid passage and the interior pressure increase of air duct.Because pressure raises, the valve body on air duct and the fluid passage mouth just gets out of the way, and just enters the distribution passage together from the air stream of air duct with from the liquid stream of fluid passage.In distributing passage, liquid and AIR MIXTURES are passed a plurality of filter screens can be by the foam of dispense aperture distribution to form.

After squeeze receptacle, container can be used for making container to turn back to the recovery device of its original state and turn back to its original state basically by the elasticity of container itself or by setting.

The shortcoming of known allocation device is that the mixing of air and liquid is not optimized, so the quality of foam neither be very satisfactory.In addition, the structure of known allocation device is complicated and comprise a plurality of parts, and this just makes manufacturing also complicated.In addition, air duct and fluid passage are crooked, so the speed of liquid and air-flow reduces, therefore also cause the quality of foam to descend.

Summary of the invention

The purpose of this invention is to provide a kind of distributor that is used for dispense foam, this device can solve one or more in the above-mentioned shortcoming.

According to a first aspect of the invention, provide a kind of distributor, be characterized in that the mouth of air duct and the mouth of fluid passage relative to each other are provided with basically ringwise and basically with one heart according to claim 1 preamble.

By the mouth of air duct and fluid passage is made annular design, the amount of the liquid that distribute and the air that mixes with liquid distribute on big as far as possible surface area.Because two annular mouth relative to each other are provided with basically with one heart, can realize improved mixing between liquid stream and the air stream.

Aspect this, should be noted that the annular mouth of fluid passage and/or air duct can be ringwise basically mouthful or a plurality ofly conglobate opening is set forms by one.

In one embodiment, the diameter of the annular mouth of fluid passage is greater than the diameter of the annular mouth of air duct.So when dispense foam, the liquid that flows out from the annular mouth of fluid passage can flow through the annular mouth of air duct and can realize good mixing.

In one embodiment, valve body is tapered basically.The term taper is interpreted as meaning that valve body is basically the circular symmetry design, and along the diameter of the symmetrical centre axis direction valve body one end diameter greater than the valve body other end.This diameter can reduce on whole length gradually, but also can increase on the part of the length of taper or keep constant.

In one embodiment, valve body 6 by partially flexible at least, be preferably elastomeric material (for example silicones) and make silicones such as liquid silastic (SLR).By making valve body, need not in distributor, to install the valve function that any other moving-member provides valve body with flexible material.By using elastomeric material, valve body can turn back to its resting position after the dispense foam because container is extruded.But this returns to move and also can realize in any other suitable mode, for example by using spring part or realizing by pre-tensioning valve body.

In one embodiment, housing is basically around symmetrical centre axis circular symmetry, and/or the liquid that will distribute during distribution moves along the direction with respect to the longitudinal direction of housing.In such an embodiment, liquid needn't be through wherein main direction reverse twice or the complicated more frequently stream of liquid.This also can make the structure of distributor simple relatively.

According to a second aspect of the invention, the invention provides a kind of according to claim 1 foam formation as described in the preamble assembly, be characterized in putting the contraction structure in described distribution passage, preferably distributing the porous member in the passage or the upstream of screen element with being arranged at.

By in distributing passage, contraction structure being set, can quicken to distribute foam stream or liquid-air mixture flow in the passage.So, can improve the formation that mixes and therefore improve foam.Preferably, this contraction structure is arranged on the upstream with respect to being arranged on the porous member or the screen element that distribute in the passage, thereby after acceleration, makes foam or liquid-air mixture pass the formation that porous member or screen element improve foam.Have found that, provide contraction structure to cause the sizable improvement of foam quality.The cross-sectional surface area of contraction structure is preferably less than 75% of the cross-sectional surface area that distributes passage, more preferably less than 50%.

According to the 3rd embodiment, the invention provides a kind of distributor that is used for dispense foam, this apparatus features is that valve body comprises the through hole that forms a part of distributing passage.By making liquid can pass through hole on the valve body, fluid passage and air duct are turned twice realize and distribute being communicated with of passage.This can make the structure of distributor simple relatively.

But form the squeeze foamer that assembly can advantageously be applied to comprise the container of manual compression according to this foam according to the present invention, but the container of manual compression is used for storaging liquid or air, foam forms on the opening that assembly can be installed in described container or in the opening.

In the alternate embodiment of the distributor that is used for dispense foam, form assembly according to foam of the present invention and can be arranged in maintenance pressure fluid or the gas containers or on the container, but for example on the container with foaming liquid or propellant.In addition, but foam form assembly also can with any other device combination that pressurized foaming liquid and gas can be provided, for example with device or have the fluid supply of continuous compression and the device combination in air source with liquid pump or air pump.

Description of drawings

Hereinafter will explain the present invention in more detail by the exemplary embodiment of reference accompanying drawing, in the accompanying drawing:

Fig. 1 illustrates the cutaway view according to first embodiment of distributor of the present invention;

Fig. 2 illustrates in greater detail the part of the distributor of Fig. 1;

Fig. 3 a illustrates the cutaway view according to second embodiment of distributor of the present invention;

Fig. 3 b illustrates in greater detail the part of the distributor of Fig. 3 a;

Fig. 4 illustrates the vertical view of first housing parts of the embodiment of Fig. 3; And

Fig. 5 illustrates the vertical view of the 3rd housing parts of the embodiment of Fig. 3.

The specific embodiment

Fig. 1 and 2 illustrates first embodiment according to distributor of the present invention.Distributor is totally represented with label 1.Distributor 1 is a squeeze foamer type.This squeeze foamer passes through dispense aperture and dispense foam owing to container is extruded usually.After squeeze receptacle, container can be used for making container to turn back to the recovery device of its original state and turn back to its original state basically by the elasticity of container itself or by setting.

Can use foam that distributor 1 forms applicable to various purposes, such as emollient, cleaning solution, skin care item etc. after soap, shampoo, shaving foam, washing agent, sun-screening agent, the solarization.

This distributor is shown is in resting position, promptly this container is not extruded.This squeeze foamer is manually actuated.But, also can when using this device for this purpose, push this container.

When transmitting, the squeeze foamer that illustrates can be held in the hand.Also can with itself or similarly distributor be installed to be attached on the wall for example, for example be similar on the retainer that can see in the public lavatory.

This known allocation device 1 comprises the artificial compressible container 2 that is used for storaging liquid and air.This container comprises the wherein adaptive opening 3 that has foam to form assembly.Container 2 can have any suitable shape, for example has the shape of ellipse or circular cross-section.

Foam forms assembly and is around symmetrical centre axis A-A circular symmetry basically.This foam forms assembly and comprises the housing with first housing parts 4 and second housing parts 5.Second housing parts 5 is attached to container 2, the first housing parts 4 and is clamped between the container 2 and second housing parts 5 with sealing means by being threaded.Perhaps, second housing parts 5 can be by engagement connection, be welded to connect, gas-tight seal or other suitable connection is attached on the container 2 or in the container 2.In addition, foam forms the valve body 6 that assembly comprises taper basically, and this valve body is being clamped near the clamping part 6a between first housing parts 4 and second housing parts 5.Valve body 6 by flexible, be preferably flexible material and make.Proved that silicones is the material that is particularly suited for valve body 6.

Air is positioned at the top of container 2 with respect to liquid.This liquid and this air are transformed into foam by distributor 1, and this foam distributes by the dispense aperture 8 in the sealing cap 7.For liquid and air can be mixed, provide liquid in the container to extend to the fluid passage of the annular mouth 10 (between circular edge 4a and the 4b) of fluid passage through the opening 9 on first housing parts 4.

For air, provide air from the top of container 2 through the air duct of piping 11 to the annular mouth 12 (circular edge 4a and the 4c) of air duct.Shown in resting position, annular mouth 10 and annular mouth 12 are all by valve body 6 sealing.When opening two

annular mouth

10,12, when that is to say not by valve body 6 sealings, fluid passage and air duct and distribution channel connection.This distribution passage extend through valve body 6 core (in this core, being provided with sieve element 13) with two little filter screen 13a, pass valve body 6 central opening 14, pass second housing parts 5 and sealing cap 7 and arrive dispense aperture 8.

Usually, air duct comprises and takes air in the container that is communicated with of mouth fluid with air duct one or more air ducts, and the mouth of air duct is covered by valve body in resting position.Fluid passage correspondingly comprises and takes liquid in the container that is communicated with of mouth fluid with fluid passage one or more fluid pipelines, and the mouth of fluid passage is covered by valve body in resting position.

The annular mouth 10 of fluid passage, the annular mouth 12 of air duct and distribution passage relative to each other are provided with basically with one heart.The diameter of annular mouth 10 is greater than the diameter of annular mouth 12 in this case.In addition, in the valve body 6 internal diameter of central passages 14 less than each diameter in annular mouth 10 and 12.Discuss valve body 6 now in more detail.At position 6a, valve body 6 is clamped between first housing parts 4 and second housing parts 5 hermetically.In addition, keep valve body by

ring edge

4a and 4c against conical surface 5a.In order to realize the better sealing along

circular edge

4a and 4c, some axial pre tightening forces of valve body 6 usefulness fit between first housing parts 4 and second housing parts 5 in resting position.

Valve body 6 has the arcuate section 6c that is positioned at the annular mouth 10 of fluid passage to small part.This arcuate section 6c has such advantage: because the liquid column in container and the fluid passage is pressed on the valve body and in the improved sealing of position 4a place realization in resting position.This is owing to arcuate section 6c is pushed, so the both sides of arc are pushed to both sides.So towards the outside that clamping element 6a promotes arcuate section 6c, and with inboard pushing and pressing circular edge 4a and the pushing and pressing circular edge 4c of arcuate section 6c, this can increase sealing function.

In this case, especially advantageously, the cross section of the arcuate section 6c that extends in annular mouth 10 is not a symmetric design, but the top of arcuate section 6c is positioned at the 4a that keeps to the side relatively, the top of promptly comparing arcuate section 6c with the edge 4b 4a that more keeps to the side.Because this shape, arcuate section 6c can compress edge 4c especially under the pressure of fluid column, form excellent sealing here.Because annular mouth 10 is sealed on the opposite side by the clamping at part 6a place, this mouthful sealed effectively by valve body 6 and do not needed bigger chucking power.

In valve body 6 another embodiment, the favourable very firm clamping effect of arcuate section on two edges that valve body is realized at the top can be set near the two edges of mouth for one of both sides of being clamped in mouthful.The cross section of the arcuate section of valve body is just as the back of camel then, and the hump of camel is represented at two tops of valve body.

In a side that is positioned on the clamping part 6a outside, valve body 6 has sealing lip 6b, and sealing lip 6b makes air can enter container 2 with the valve that acts on air intake, this valve when forming the pressure of certain reduction in container 2 because the liquid in the container 2 is assigned with.The common airtight container 2 of sealing lip 6b is towards the passage of outside, but makes air flow into containers 2 from the outside by opening 15 when the pressure of reduction is arranged in container 2.

Distributor 1 also comprises sealing cap 7.With respect to second housing parts 5, sealing cap 7 can move to open position (as illustrated in fig. 1 and 2) and closed position (in the drawings with respect to housing towards the top) at least.In the closed position,, the ledge 5b of second housing parts 5 can not pass through dispense aperture 8 dispense foam thereby moving to dispense aperture 8.When sealing cap is placed on the closed position, will lead to the air inlet passage sealing of container 2 inside via valve body 6b and opening 15.Sealing cap 7 also has the finger piece that a plurality of directions of cooperating with complementary finger piece on second housing parts 5 make progress.The finger piece of these interworkings forms further sealing in the closed position.

Near its outer perimeter, first housing parts 4 have along the direction of container 2 and inwardly (towards center line A-A) tilt to extend freely give prominence to lip 29.These lip 29 usefulness act on attached seal between sealing first housing parts 4 and the container 2.This sealing also is called crab claw, but is not used for foam-dispensing device as yet, specifically is not used for squeeze foamer.

When the open position squeeze receptacle 2 at sealing cap, the pressure in the container 2 can increase.At first, the pressure increase can guarantee that the arcuate section 6c of valve body 6 compresses ring edge 4a more firmly, forms enhanced seal between valve body 6 and the ring edge 4a.When the pressure in the container 2 increased by further squeeze receptacle, arcuate section 6c can move down at some some place, so this arcuate section 6c can separate with ring edge 4a.This can produce the liquid stream that flows through gap between ring edge 4a and the valve body 6.Because container 2 internal pressures increase, valve body 6 also can separate with ring edge 4c subsequently, and air and liquid stream can be flow through between ring edge 4c and the valve body 6.Here, therefore liquid can mix with air.Because liquid and air all flow through narrower circular gap, can form the good mixing between air and the liquid.Air and mixtures of liquids flow through little filter screen 13a then, and this can form (improved) foam.This foam can flow to dispense aperture downwards by distributing passage, in the opening part dispense foam.

Therefore valve body 6 since its during

distribution ring edge

4a and 4c go up continuous rolling, distribute passage to arrive dispense aperture so liquid and air can flow through, in distributing passage, form foam.Have been found that this rolling effect effect is favourable for forming foam.

First advantage of the embodiment of distributor 1 is annular mouth dispense liquid and air on relative big surface area of fluid passage and air duct, forms relative good mixing.By way of parenthesis, when spending less than 360 or be divided into the several openings that forms the annular opening that interrupts together again, one or two extend through in the annular mouth also can realize this advantage.Think that these embodiment fall within the scope of protection of the present invention.

In an alternative embodiment, valve body can be designed to firm and use spring part it to be compressed or draws to first housing parts 4.When the pressure in the container increased, then spring can correspondingly be compressed or extend, and forms the gap between the valve body 6 and first housing parts 4.So, can form and dispense foam.But, in such an embodiment, above-mentioned favourable rolling effect can not take place.

Second advantage of the embodiment of distributor 1 is: because the central opening 14 that is arranged in the valve body has been arranged, liquid stream or air stream just do not need to turn over 90 degree or more angle.By this opening 14 is provided, liquid stream and air stream can keep its speed, therefore cause the better mixing of liquid and air.In this case, it is more favourable that valve body 6 is designed to taper basically, so just can more effectively keep the speed of liquid stream and air stream.In addition, taper has such advantage: the screen element that helps foam to produce can fit in the cone.By it is assemblied in the taper, the total height of housing just reduces.Usually, the illustrated embodiment of distributor has such advantage: the liquid that distribute moves along the direction with respect to the symmetrical centre axis direction when distributing.This can realize and help to produce the foam of the quality that requires by the ad hoc structure of distributor.

The 3rd advantage of the embodiment of distributor 1 is: the arcuate section 6c of valve body 6 supports the sealing between second housing parts 4 and the valve body 6.So, in resting position, realize better seal when promptly container 2 is not extruded, therefore can reduce the risk that liquid leaks from distributor.In addition, arcuate section 6c forms pressure threshold, and valve body separates with second housing parts 4 under this pressure threshold, and guarantees the improved foam of constant-quality.

Fig. 3 (being Fig. 3 a and 3b) illustrates second embodiment according to squeeze foamer of the present invention.Usually construct squeeze foamer according to the embodiment shown in Fig. 1 and 2.Therefore, use identical label to represent the substantially the same parts of this squeeze foamer.In addition, also be applied to the embodiment of Fig. 3 usually according to the aforesaid operations of the squeeze foamer of Fig. 1 and 2.

Most important difference between the squeeze foamer of Fig. 1 and 2 and the squeeze foamer of Fig. 3 is: the latter is included in the 3rd housing parts of being represented by label 20 among Fig. 3.Because the housing parts 20 of this increase has been arranged, and the squeeze foamer of Fig. 3 has the advantage of a plurality of increases, and is as mentioned below.

The 3rd housing parts 20 is clamped between the clamping part 6a and first housing parts 4 on the valve body 6.Therefore in this embodiment, valve body 6 is clamped between second housing parts 5 and the 3rd housing parts 20.First housing parts 4 comprises filter screen 4e/4f, wherein is respectively equipped with opening 9a and 9b.These filter screens 4e/4f is placed in the opening 24 of the 3rd housing parts with sealing means.

So the liquid that flows through opening 9a arrival annular opening 10 can not arrive the space 21 between first housing parts 4 and the 3rd housing parts 20.This space 21 is connected to the space 22 of air intake valve 6b top the inside of lifter 11.So the air that enters by inlet valve 6b during container 2 ventilations after distributing certain amount of fluid is understood Continuous Flow and is crossed

space

22 and 21 and flow through the top section that lifter 11 enters container 2.Compare with the embodiment of Fig. 1 and 2, prevent that air from passing the liquid in the container 2 before container 2 ventilations.The latter has such advantage: formed foam when needed air that bottle is ventilated flows through liquid in container 2.

By using the 3rd housing parts 20 to form space 21, therefore can prevent from during ventilating, in container 2, to form foam in simply constructed mode.In an alternative embodiment, for example can in the embodiment of Fig. 1 and 2, provide the air conduit that passes first housing parts 4 or second housing parts 5, this air conduit is connected the air intake valve with the inside of lifter, thereby can ventilate and air needn't flow through the liquid in the container to container.

Another advantage of the embodiment of the squeeze foamer of Fig. 3 is: by the 3rd housing parts 20 is provided, can squeeze foamer can be supplied have the foam of two or more air/liquid ratios in simple mode, as hereinafter explaining in more detail.

Fig. 4 illustrates the vertical view of first housing parts 4.First housing parts 4 is rounded basically and comprise by 23, three opening 9a of six central openings that opening centered on having than other three diameters that opening 9b is big.When dispense foam and to container 2 ventilations the time, air can flow through central opening 23.According to desired air/liquid ratio, one or more opening 9a and 9b are set, fluid can flow through these openings when operating squeeze foamer thereby make.

Fig. 5 illustrates the vertical view of the 3rd housing parts 20.The 3rd housing parts 20 comprises three openings 24 that can align with the big opening 9a or the little opening 9b (depending on that the 3rd housing parts 20 is placed on the position of rotation on first housing parts 4) of first housing parts 4.The 3rd housing parts 20 also comprises three blind holes 25, and according to the position of first housing parts 4 with respect to second housing parts 20, three blind holes 25 can big opening 9a of sealing or smaller opening 9b.

Fig. 3 side leftward is clearly shown that the sleeve pipe 4e of first housing parts 4 that wherein is provided with opening 9a is arranged in the sleeve pipe that wherein is provided with opening 24, and is sealed by blind hole 25 at the sleeve pipe 4f that wherein is provided with opening 9b shown in the right-hand side of figure.Therefore in 1 operating period of squeeze foamer, liquid can only flow through three big opening 9a.

If first housing parts 4 and the 3rd housing parts 20 relative to each other rotate 60 degree now, opening 24 can align with smaller opening 9b, and big simultaneously opening 9a can be by blind hole 25 sealings.This can cause less liquid to flow through from opening 9b in squeeze foamer operating period, and flows through the amount of air of lifter 11 because container 2 is extruded still constant basically.Therefore, can change the air/liquid ratio according to first housing parts 4 with respect to the position of rotation of the 3rd housing parts 20.

It is apparent that to one skilled in the art this structure can provide the multiple possibility that changes the air/liquid ratio by the quantity of blind hole sealed opening and by the size that changes the response opening alternatively by changing on first housing parts.

Another possibility that influences the air/liquid ratio is by regulating the minimum diameter of air duct, for example by the internal diameter of regulating lifter 11 or the diameter that passes through to regulate central opening 23 in first housing parts 4.Being used to of having provided, the option of regulating the air/liquid ratio also can be used for influencing the total amount of the foam that forms when squeeze receptacle 2.

In the present embodiment of Fig. 3, only have two positions: one is position as shown in Figure 3, passes through three bigger opening 9a dispense liquid in this position; And first housing parts 4 with respect to the 3rd housing parts 20 rotation 60 degree and the therefore position by three smaller opening 9b dispense liquid wherein.When each parts with squeeze foamer 1 are assemblied on the container 2, will be for example select first housing parts 4 position adaptive with respect to the 3rd housing parts 20 according to fluid.

Core and exterior section that Fig. 5 also illustrates the 3rd housing parts 20 are connected to each other by bridging part 26.These bridging parts 26 cause by three openings form the mouth 12, these openings are arranged to annular.Think that mouth 12 this embodiment with several openings is the mouth of annular basically that the context of present patent application is mentioned.

Another difference between the embodiment of Fig. 3 and the embodiment of Fig. 1 and 2 is: in the embodiments of figure 3, be provided with second screen element 28 that comprises two little filter screen 28a.According to foam that will form and the liquid that is used for this purpose, this second screen element 28 can be used for further influencing the quality of the foam that will distribute.Generally speaking, provide additional sieve elements can cause foam exquisiter and also more even.According to the application scenario, therefore can select one of

screen element

13,28 or its combination, can also revise be used in the little filter screen in the

corresponding screen element

13,28 type to adapt to the application scenario.In another embodiment,

screen element

13,28 also can be designed to single screen element, and half of single screen element extends in the valve body.

In the embodiment of Fig. 3 a and 3b, one of little filter screen 13a is replaced by the platelet 13b with one or more relatively little holes, also gives the function of screen element with the expansion space.

Form contractibility 13 in distributing passage, this contractibility restriction dispense aperture is at the cross-sectional surface area at contraction structure place.This contraction structure makes foam stream or liquid-air mixture flow quicken in distributing passage, improves the quality of foam thereupon.This contractibility 13b and screen element 13 are designed to one.In another embodiment, can form this contraction members by dividing member or with member that foam forms assembly another part one.

The cross-sectional surface area of contraction members be preferably the contraction structure upstream the distribution passage the cross-sectional surface area maximum 75%, more preferably maximum 50%.

This contraction structure is arranged at least one the upstream of filter screen 28a, or roughly in the end before porous member or the screen element.By upstream contraction structure is set, can further advantageously influences the formation of foam at least one screen element.

The foregoing description at the squeeze foamer of sealing cap position has down been described.To above and/or reference hereinafter all with respect to this position.This distributor is designed for this position.In this case, sealing cap 7 is designed so that distributor stand on the sealing cap 7, and container 2 is unsuitable for standing on this top owing to its protruding top.But, can provide the reversing in fact down of distributor wherein (with respect to shown in the position reversing) with dispense foam and/or the embodiment that lies idle.Think that these embodiment fall within the scope of protection of the present invention.

It will be clear to one skilled in the art that the embodiment that all can be applicable to one of others with reference to the pointed all single features in one of them aspect according to the present invention.Therefore think that these embodiment fall within the scope of protection of the present invention.

Claims

1. distributor that is used for dispense foam comprises: but the container of manual compression, but the container of described manual compression is used for storaging liquid and air; And foam forms assembly, and described foam forms in the opening that assembly will be attached to described container or is used to form foam on the opening; Described foam forms assembly and comprises: housing, described housing has air duct and fluid passage, each passage end at mouthful and with the distribution channel connection that ends at dispense aperture; And valve body, described valve body covers the mouth of described fluid passage and the mouth of described air duct in resting position with sealing means, to prevent flowing to described distribution passage from described fluid passage and described air duct, and described valve body is during distribution opened the mouth of described fluid passage and the mouth of described air duct, to allow air and liquid in described distribution passage, to mix

It is characterized in that the mouth of described air duct and the mouth of described fluid passage relative to each other are provided with basically ringwise and basically with one heart.

2. distributor as claimed in claim 1 is characterized in that the diameter of the described annular mouth of described fluid passage is greater than the diameter of the described annular mouth of described air duct.

3. distributor as claimed in claim 1 is characterized in that, described distribution passage is provided with one heart with respect to the described annular mouth of described fluid passage and described air duct.

4. distributor as claimed in claim 1 is characterized in that described valve body is tapered basically.

5. distributor as claimed in claim 1 is characterized in that, described valve body comprises the perforation of a part that forms described distribution passage.

6. distributor as claimed in claim 1 is characterized in that described valve body is flexible.

7. distributor as claimed in claim 1 is characterized in that, described distributor centers on the symmetrical centre axis and circular symmetry basically, and the liquid that will distribute during distribution moves along the direction with respect to described symmetrical centre axis.

8. distributor as claimed in claim 1 is characterized in that described valve body is made by silicone material.

9. distributor as claimed in claim 1 is characterized in that, the described annular mouth of described fluid passage and/or described air duct comprises opening.

10. distributor as claimed in claim 1 is characterized in that, the described annular mouth of described fluid passage and/or described air duct comprises several openings, is covered by described valve body at described each opening of resting position.

11. distributor as claimed in claim 1 is characterized in that, described distributor comprises sealing cap, and described sealing cap can move between the closed position sealed by the extruding open position of described container allocation foam and described dispense aperture.

12. distributor as claimed in claim 1 is characterized in that, described valve body is included in and freely extends on all sides and with the edge that acts on the valve of vent openings in the described housing, described vent openings is used to described container ventilation.

13. distributor as claimed in claim 5, it is characterized in that, described elastic valve body comprises arcuate section, described arcuate section extend to described fluid passage the mouth in or described air duct the mouth in, make originally when the pressure in the described container increases, described arcuate section strengthen respectively described fluid passage and described air duct mouthful sealing.

14. an assembly that is used to form foam comprises: housing, described housing has air duct and fluid passage, each passage end at mouthful the place and with the distribution channel connection that ends at dispense aperture; Valve body, described valve body covers the mouth of described fluid passage and described air duct hermetically in resting position mouth is to prevent mobile from described fluid passage and described air duct to described distribution passage, and described valve body during distribution open the mouth of described fluid passage and described air duct mouth so that air and liquid can mix in the passage in distribution, it is characterized in that the mouth of described air duct and the mouth of described fluid passage relative to each other are provided with basically ringwise and basically with one heart.

15. an assembly that is used to form foam comprises: housing, described housing has air duct and fluid passage, each passage end at mouthful the place and with the distribution channel connection that ends at dispense aperture; Valve body, described valve body covers the mouth of described fluid passage and described air duct hermetically in resting position mouth is to prevent mobile from described fluid passage and described air duct to described distribution passage, and described valve body during distribution open the mouth of described fluid passage and described air duct mouth so that air and liquid can mix in the passage in distribution, it is characterized in that, also comprise the contraction structure that is arranged in the described distribution passage, preferably the porous member that in described distribution passage, is provided with or the upstream of screen element.

16. squeeze foamer that is used for dispense foam, but comprise the container that is used for storaging liquid and air of manual compression and can be installed on the opening of described container or in the opening, form assemblies as claim 14 or 15 described foams, described air duct and fluid passage are communicated with described fluid container.

17. a distributor that is used for dispense foam comprises as claim 14 or 15 described foams forming assembly that wherein said fluid passage is connected with the gas source that comprises air under pressure with the fluid supply that comprises pressure fluid respectively with described air duct.

18. distributor that is used for dispense foam, comprise as claim 14 or 15 described foams and form assembly, but wherein said fluid passage and described air duct with comprise foaming liquid and gas, specifically be that the container of air is communicated with, but but wherein said foaming liquid and gas be supercharging or pressurized.