CN100509173C

CN100509173C - Fluid dispenser member

Info

Publication number: CN100509173C
Application number: CNB2004800416420A
Authority: CN
Inventors: 菲尔曼·加西亚
Original assignee: Valois SAS
Current assignee: Aptar France SAS
Priority date: 2003-12-22
Filing date: 2004-12-20
Publication date: 2009-07-08
Anticipated expiration: 2024-12-20
Also published as: DE602004026636D1; WO2005063402A1; ES2342470T3; CN1913971A; FR2864046B1; BRPI0417954A; FR2864046A1; JP2007515288A; EP1703986B1; EP1703986A1

Abstract

The invention relates to a fluid product dispensing member (100; 200; 300; 400) comprising a dispensing wall (123; 223; 323; 423) defining an outer surface and an inner surface, said wall being traversed by a dispensing port (125; 225; 325; 425) which connects the inner surface to the outer surface. The inner surface forms a sealed sliding barrel for a piston (131, 132, 133; 231, 232, 233; 331, 332, 333; 431, 432, 433) which can move in sealed contact inside said barrel in order selectively to uncover the dispensing port. Moreover, the piston forms a wall element of a fluid product chamber (1) in which the fluid product is selectively pressurised. In addition, the inner surface forms a fluid product whirling system (126; 226; 326; 426), at the sliding barrel, immediately upstream of the dispensing port. The invention is characterised in that the dispensing wall is formed by an essentially-cylindrical skirt (122; 222; 322; 422) which also comprises a guide wall (124; 224; 324; 424), said guide wall defining an inner surface having an inner diameter that is greater than that of the sliding barrel.

Description

A kind of fluid dispenser member

Technical field

The present invention relates to a kind of fluid dispenser member, its usually with the related design of a fluid liquid reservoir, thereby constitute a fluid dispenser.Its dispenser member for generally manually booting with the user.Fluid is with the spray flow of the tiny globule, continuous current, or becomes the form spreading of drop of liquid to come out, and is used in particular for viscous fluid, as cosmetic cream.This fluid dispenser member can be used in perfume, cosmetics especially, even the spreading of different viscosities fluid is carried out in the pharmaceuticals field.

Background technology

The present invention be more particularly directed to but not only relate to the dispenser member of a kind of being called as " compression pump ".Available this dispenser member comprises one and not only forms a spreading hole but also this fact of pusher of limiting a part of fluid cavity is explained this title, and the fluid in fluid cavity inside is selectively placed under the pressure.When this dispenser member was a pump, this chamber was a pump chamber.The characteristics of this compression pump are: the inner surface of pusher is generally general cylindrical, and it moves with sealing contact mannar at described cylinder inner carrier as the sealing sliding cylinder of a piston, thereby optionally opens the spreading hole.In general, this piston is to adapt to the variation of cavity fluid pressure and mobile differential pressure type piston.This differential piston should be different from the mobile main piston by driving pusher.Therefore, this pusher-pump comprises a differential piston and a main piston, all can move with sealing contact mannar in cylinder separately.The main cylinder of main piston also can form by pusher.

This technology is applied to especially in the pump that No. 97/23304 file of WO is described.This pusher has one and promotes wall, for driving this pusher, exerts pressure thereon with finger.In addition, this pusher has a sleeve, and it extends downwards from this promotion wall.Described sleeve forms one first sealing sliding cylinder of differential piston, and forms one second main cylinder of the main piston of pump.This differential piston separates with main piston.This differential piston pushes away this promotion wall by a spring, and this spring is not only as a return spring but also as a pretensioned spring.The sliding cylinder of described differential piston provides an outlet, and it leads to the nozzle that is included in the recess that forms in the pusher sleeve.This nozzle forms a spreading hole, and by this spreading hole, fluid penetrates from dispenser member.In addition, the recess that is formed by sleeve provides a whirlpool system, and this system and nozzle cooperation make fluid advance in the whirlpool mobile status by the ejaculation of spreading hole.This whirlpool system is made up of one or more tangent line whirlpool passages usually, and its expansion enters in the swirl chamber that accurately is centered on the spreading hole.This whirlpool system is the web form of recessed sleeve recess.So, this recessed net and the independent nozzle matches of separating whirlpool passage and chamber.Like this, the sliding cylinder of differential piston only is blocked at the exit passageway place with the form of periphery.When pusher was pressurizeed, main piston rose in the main cylinder of pusher, moved in the differential pressure cylinder thereby differential piston is slided with sealing means.So cause spring to be compressed: so differential piston moves up towards pushers wall direction.The movable sealing antelabium that differential piston and fluid directly contact is in the cylinder basal sliding that is positioned under the exit passageway.Differential piston one reaches outlet, and the fluid under the cavity pressure is sent in the chamber by described pipe and reached nozzle, and here it forms whirlpool shape and discharges by the spreading hole.

Pump in No. 97/23304 file of WO is made up of 5 major parts, promptly with ball, differential piston and the nozzle of the body of fluid reservoir coupling design, pusher, formation inlet valve member.Body forms main piston.

The pump that US-4050 613 describes comprises the differential piston that a pusher and slides in pusher.So the inwall of pusher forms a sliding cylinder.This cylinder has a whirlpool system that forms a recess in the pusher inwall.When sliding in cylinder, differential piston is opened the whirlpool system.This cylinder is for cylindric completely, and its diameter remains unchanged.Thereby the forming step of whirlpool system is very complicated, removes from cylinder because must will be used to form the core of whirlpool system under the situation of not destroying cylinder.

Summary of the invention

An object of the present invention is in order to overcome this moulding problem of whirlpool system.

For this reason, the invention provides a kind of dispenser member.

The spreading wall is made by molded plastic usually.Therefore adopt a mould of forming by a plurality of assemblies.A described assembly forms a core especially, is used to form the inner surface of spreading wall.In the present invention, described core must not only form sliding cylinder, but also forms the whirlpool system.Because the whirlpool system extends by a part that forms recessed sliding cylinder, this core must form a corresponding marking that outwards protrudes.Like this, when withdrawing from this core in the form removal process, this protrusion marking must use brute force to withdraw from.Therefore this protrusion marking must shift out from the recess that has formed, and must move along the sliding cylinder axial region.If this plastic material can be out of shape a little, it is very limited in sliding cylinder to make marks by the protrusion marking is exerted pressure.Like this, by the guiding wall of an inner surface diameter greater than the sliding cylinder internal diameter is provided, the protrusion marking of core can be moved out of by it, and the guiding wall inner surface that need not to nip.Consequently, the protrusion marking of core is withdrawn under the power that only puts on the sliding cylinder one little axial region: like this, the danger that damages sliding cylinder in removing the building core process is just very limited.

In addition, the internal diameter of guiding wall also makes greater than this fact of sliding cylinder internal diameter and differential piston is put into the cylinder appropriate location and needn't rub with guiding wall.

Such dispenser can be the pump of a compression pump type, also can be the dispenser member of the pusher other types of separating with the spreading wall.Particularly, may for spreading wall relative fixed in liquid reservoir, or the spreading wall is installed to move relative to pusher and to take measures in advance.Preferably, this sliding cylinder, spreading hole and whirlpool system and spreading wall are integrally formed.

In another embodiment, the spreading wall has a pusher that promotes wall by one and forms, and this promotes wall and extends in its periphery by the spreading wall.Preferably, piston flexibly drives with respect to promoting wall, and can open in order to open the spreading hole from described promotion wall shift.This characteristic also is of value to and internal diameter combining greater than the guiding wall of sliding cylinder internal diameter.Though piston moves in the next-door neighbour promotes the sliding cylinder top of wall, avoided the cylinder bottom owing to the protrusion marking of the building core that has formed the whirlpool system by the damage of withdrawing from and may causing.

According to another characteristic, piston is flexibly pushed away guiding wall, and can move towards described guiding wall.In the case, piston must move on the sliding cylinder bottom, and this sliding cylinder may be damaged by the protrusion marking of building core.

On the other hand, piston is flexibly pushed away the promotion wall, and can be moving towards described promotion wall shift.Equally here, piston moves in the cylindrical portions may that the building core protrusion marking passes through.

According to another useful characteristic, promote the inner surface that wall provides a formation chamber wall assembly.It is applied to the relative return spring of piston especially and leaves when promoting wall.

On the other hand, this piston is one to be adapted to that cavity pressure changes and the differential piston that moves, and described differential piston has at least one seal lip that contacts with sliding cylinder with the sealed sliding flowing mode.Preferably, a differential piston and a main piston integratedly or fastening with it, this main piston contacts with main cylinder with the sealed sliding flowing mode.When this point is applied to pump especially and is top cover pump type.

On the other hand, this dispenser member has a body that is complementary with fluid reservoir, and described body forms the main cylinder that has main piston to slide in.Another practical aspect, this spreading wall is formed by the columned sleeve of a cardinal principle, and the further formation one of this sleeve defines the guiding wall of an inner surface, and this inner surface forms the main cylinder of main piston.

Preferably, this whirlpool system comprises that at least one whirlpool passage and is the swirl chamber and the optional one peripheral feed ring at center with the spreading hole.This is the traditional design of whirlpool system.

A useful aspect of the present invention is that the wall that the spreading aperture is crossed has also formed a fluid whirlpool system in inside.Preferably, inner surface is that a useful differential piston forms a sliding cylinder.

Below with reference to the accompanying drawing of the performance embodiment of the invention, and be not limited to example, more fully invention has been described.

Description of drawings

Among the figure:

Fig. 1 be first embodiment inactive state of dispenser member profilograph, itself and a fluid liquid reservoir are complementary, and this liquid reservoir only illustrates a part in the drawings;

Fig. 2 is the operating state of Fig. 1;

Fig. 3 a and Fig. 3 b are for providing the spreading wall inner surface inactive state of the present invention one whirlpool system and the schematic diagram of operating state respectively;

Fig. 4 a and Fig. 4 b are the embodiment profilograph separately of two variations of dispenser member;

Fig. 5 be another embodiment of the present invention inactive state with the similar profilograph of Fig. 1, Fig. 2;

Fig. 6 is the operating state of Fig. 5;

Fig. 7 is the profilograph of another embodiment inactive state of dispenser member of the present invention.

The specific embodiment

The dispenser member of first embodiment illustrated in figures 1 and 2 and container 150 are complementary, and it has the inner body 151 that limits a fluid liquid reservoir 5.On its top, body 151 provides an opening with the form of a neck 153, and it is used for fixing dispenser member of the present invention.

This dispenser member comprises three parts, and promptly body 110, pusher 120 and piston component 130.This dispenser member also comprises the spring assembly of a wind spring 140 forms.Described body, pusher and piston component are preferably made by moulding of plastics materials.This dispenser member is designed to a pump with pump chamber 1.

Body 110 provides a retainer ring 111, jointly this member is fixed on the container 150 with neck 153.Ring 111 is meshed with neck 153 outsides.In addition, body forms a self sealss antelabium 112, tightly meshes with neck 153 madial walls.Body 111 also form one can with ring 111 pilot tape 114 that direction extends that is in line.Pilot tape 114 tops provide the edge 1114 that extends internally.Body 110 also extends with one heart in pilot tape 114 and forms a sleeve pipe 113.So between pilot tape 114 and sleeve pipe 113, form an annular gap.On its top, sleeve pipe 113 has a shoulder 1131 as spring 140 composition surfaces (abutmentsurface).By forming a main cylinder 117, sleeve pipe 113 extends upward, and main cylinder interior limits a sealing slidingsurface, and its function is as described below.This body also forms a dip-tube 115 that extends in container 150.On its top, dip-tube 115 extends through inlet sleeve 116, and this inlet sleeve forms an inlet valve profile or seat 1161.One inlet tube 118 passes dip-tube 115 and sleeve 116.Inlet sleeve 116 extends in main cylinder 117 with one heart, thereby forms the annular space between the two.

Body 110 relative X-axis are axial, circular symmetry, and this X-axis is with inlet tube 118 axial centre longitudinal extensions.

This is special special design at dispenser member body in the first embodiment of the invention.Naturally, this body can not exceed in the scope of the invention, has the advantages that to be different from above-mentioned feature.

Pusher 120 forms a dispenser head of this dispenser member.This pusher 120 comprises that one promotes wall 121 and in the outer sleeve 122 that promotes the peripheral downward extension of wall.So the general shape of pusher 120 is one to fall cup-shaped, promotion wall wherein forms end wall, and sleeve forms cylindrical side wall.But, if the shape of this sleeve might not be cylindrical, its cross section can be conical butt or circle.

Promoting wall 121 has one to promote outer surface 1211, available one or more finger push thereon.In addition, promoting wall 121 has an inner surface 1212, and it preferably forms a bond post (abutment stud) 1213.

Sleeve 122 has a spreading roof 123 and a guiding diapire 124.On its top, this spreading

wall

123 and 121 peripheral connections of promotion wall.This spreading wall 123 has an outer surface 1221 and an inner surface 1232.This inner surface 1232 is preferably cylindrical and limits a sliding cylinder, and is as described below.In addition, this spreading wall 123 provides a penetrating spreading hole 125, and it extends to outer surface from inner surface.This spreading hole 125 can outwards be led on the outer surface the spreading disk 1251.

According to a beneficial features of the present invention, the inwall 1232 of spreading wall 123 provides a whirlpool system 126, and it makes fluid is that the whirlpool shape at center is rotated and becomes possibility with the spreading hole.Like this, provide a penetrating spreading hole with the spreading wall 123 that promotes wall 121 and guiding wall 124 one, and an inner surface with whirlpool system is arranged.

Guiding wall 124 outer surfaces provide the edge projection (abutment bead) 1241 of the joint that matches with the edge 1141 that extends internally of pilot tape 114.Guiding wall 124 places the annular gap that forms between pilot tape 114 and the sleeve pipe 113.The edge projection 1241 that engages makes pusher be anchored on body becomes possibility, so pusher only can move axially between the annular gap end wall that is formed by guiding wall 124 bottoms and

pilot tape

114 and 113 of sleeve pipes apart from the maximum stroke that is limited.

In the present embodiment, piston component 130 comprises one with sealing means and main cylinder 117 the slide main piston 136 and a differential piston of engagement, and this differential piston is by forming with two

antelabium

132 and 133 that the sealed sliding flowing mode contacts with cylinder that spreading wall 123 inner surfaces 1232 form.Piston component 130 is integrally formed.

Antelabium

132 and 133 extends on another with one of spacing greater than whirlpool system 126 axial ranges.Inactive state as shown in Figure 1, when bottom lip 133 contacted with inner surface 1232 whirlpool system 126 times, top lip 132 contacted with inner surface 1232 in whirlpool system 126.Like this, the whirlpool system can not communicate in other positions and pusher except that the space that forms between antelabium 132 and 133.This is an inactive state, and piston component 130 is wherein promoted walls 121 relatively by spring 140 and advances, and spring one end bears shoulder 1131, and the other end is the disk body that is formed by piston component 130 131 times.In addition, this two

antelabium

132 and 133 is placed formation at disk body 131 outer.The heart therein, disk body abut against and promote the bond post 1213 that wall 121 inner surfaces 1212 form.Can think that differential piston is formed by the disk body 131 that forms two antelabium 132 and 133.Piston component 130 also forms one from the axle center bar 137 of disk body 131 away from 121 extensions of promotion wall.This axle center bar 137 and the inlet sleeve 116 interior sections engagement that forms by body 110.Axle center bar 137 forms a valve profile 138 that matches with the respective profile 1161 that is formed by sleeve 116.That is to say that axle center bar 137 cooperates an inlet valve that forms pump chamber 1 with sleeve 116, it is described as follows.In addition, piston component 130 forms a piston sleeve 135, forms main piston 136 in its bottom.Piston sleeve 135 extends around axle center bar 137, passes the ring pipe that disk body 131 extends thereby limit therebetween once fluid through-hole 134.

Body 110, pusher 120 and the piston component 130 common pump chambers 1 that form, it extends between piston sleeve 135 and the axle center bar 137 between main cylinder 117 and sleeve 116 continuously, and extends to continuously between disk body 131 and promotion wall 121 inner surfaces 1212 by hole 134.Like this, disk body 131 top surfaces and inner surface 1212 form the wall assembly of pump chamber 1.Inactive state as shown in Figure 1, spring 140 advances piston component 130 with near promoting wall 121.Open by the inlet valve that the cooperation between axle center bar 137 and the sleeve 116 forms.Two antelabium 132 of differential piston and 133 contact the dotted line as shown in Fig. 3 a with the cylinder that is formed by spreading wall 123 inner surfaces 1232.

During the application of force, cause that the relative body 110 of pusher moves axially on to the promotion outer surface 1211 that promotes wall 121.Because piston component is near promoting wall, piston component is pushed device and promotes.In the phase I, the mobile inlet valve that causes of pusher cuts out: axle center bar 137 more in depth meshes and advances sleeve 116, up to successfully finished the sealing sliding-contact between sleeve and bar.Like this, pump chamber 1 breaks away from liquid reservoir 5.Then, the fluid in the pump chamber 1 is under the pressure.Because fluid is incoercible, total work capacity of pump chamber is maintained fixed.But owing to main piston 136 penetrates in the cylinder 117, thereby reduced the capacity of bottom, chamber, and must produce a new capacity.Remove and make it become possibility from promoting wall 121 by differential piston.This slides

antelabium

132 and 133 in spreading wall 123.So antelabium moves and touches whirlpool system 126 up to top lip 132.As shown in Figure 2.So the fluid under the pump chamber internal pressure is found an exit passageway by whirlpool system and spreading hole.The position of top lip 132 is shown in dotted line among Fig. 3 b.Like this, as long as can overcoming the power passage of spring 140, the pressure in the chamber just is held open state.Pressure one in the chamber is reduced to certain threshold value, and spring 140 just pushes back differential piston towards inactive state, shown in Fig. 3 a.So whirlpool system and spreading hole break away from pump chamber again.

It should be noted that top lip 132 directly contacts with fluid, thereby bottom lip does not contact directly with fluid.So top lip is slided in promoting the cylinder top that limits between wall and whirlpool system.Described top provides one than the measured surface of lower surface matter of extending under the whirlpool system, this part may receive damage owing to the dismounting of building core.

Fig. 3 a and Fig. 3 b are illustrated in a concrete unrestricted embodiment of the whirlpool system that forms in the spreading wall of dispenser member of the present invention.Described whirlpool system comprises at least one tangent line whirlpool passage 1262.Three tangent line passages that place the same angular spacing are arranged among the figure.The whirlpool system also comprises a central swirl chamber 1261, and its relative spreading hole 125 is accurately placed in the middle.Alternatively, the whirlpool system can further comprise one can the whole whirlpool passages 1262 of feeding peripheral feed ring 1263.The whirlpool system can be reduced in case of necessity become a single whirlpool passage that matches with central swirl chamber.

A beneficial features of the present invention is that piston component 140 promotes wall 121 relatively and advances, and removes described promotion wall under the influence that the pump chamber internal pressure increases.This particularly relies on the fluid through-hole 134 that provides to pass the disk body 131 that forms differential piston and may be achieved.So define a wall assembly of pump chamber with regard to talkative promotion wall.

Match with the whirlpool system that in the spreading wall, forms, remove the differential piston that promotes wall by this way and be of value to form removal, suppose that top lip 132 slides with sealing means at the sliding cylinder top, it is just destroyed that its top forms " bearing " marking in the time of can not being used for the building core of moulding whirlpool system owing to extraction.

Note also that the edge projection 1241 of the joint that forms when guiding wall 124 reaches resting position when extending internally edge 1141.

In addition, the axial lead of pusher is at first guaranteed by the guiding wall 124 that is directed axially between pilot tape 114 and sleeve pipe 113, is secondly guaranteed by piston sleeve 135 that meshes in main cylinder 117 and inlet sleeve 116 respectively and axle center bar 137.

Fig. 4 a and Fig. 4 b illustrate the embodiment of Fig. 1 and Fig. 2 variation respectively.

In the variation shown in Fig. 4 a, return and pretensioned spring and body 210 are integrally formed and indicate figure notation 2171.Spring extends straight along main cylinder 217, and abuts against the disk body 231 times of the differential piston that is formed with two antelabium 232 and 233.So spring 2171 is that extend at the center with the sleeve pipe 230 that forms main piston 236.Except that return spring, the dispenser member 200 among Fig. 4 a can be identical with the dispenser member among Fig. 1 and Fig. 2.

In embodiment 4b, dispenser member 300 comprises the return spring 3311 that an integral body is formed by piston component 330.More accurately, spring 3311 extends from disk body 331 bottom surfaces.Its in the bottom near the shoulder 3331 that forms by body 310.Except that the concrete form of spring, dispenser member 300 can be identical with the dispenser member among Fig. 1 and Fig. 2.

In the embodiment of the variation of Fig. 4 a and Fig. 4 b, dispenser member only comprises three constituent components, i.e. a body, a pusher and a piston component because return and pretensioned spring and body or with piston component be an integral body.

The container 450 that the embodiment of Fig. 5 and dispenser member of the present invention shown in Figure 6 illustrated and defined a neck 453 form openings matches, and this neck 453 preferably has a fixing profile on its outer surface.Container 450 limits a fluid liquid reservoir 5 in inside.

Whole dispenser member by Digital ID 400 appointments comprises that three are formed member, i.e. a body 410, one pushers 420 and a piston component 430.All these three parts can be made by plastic material by jet moulding.

Body 410 has a retainer ring 411 of cooperating with container 450 necks 453.More properly, ring 411 engages around neck 453.Body 410 also can provide a self sealss antelabium 412 that contacts with neck 453 inner wall sealings.One pilot tape 414 extends along retainer ring 411 straight lines.On its top, ring 414 provides the edge 4141 that extends internally, and its function is as described below.Body 410 also provides a sleeve pipe 413 that extend at the center in pilot tape 414.Like this, just between pilot tape 414 and sleeve pipe 413, produce an annular space.The top of sleeve pipe 413 forms the main piston 4133 of a seal lip form.Body 410 also provides an inlet sleeve 416 that extend at the center in sleeve pipe 413.Sleeve 416 tops form a valve profile or seat 4161.In addition, body 410 intactly forms a dip-tube 415 that extends in the container 450.This dip-tube limits one to the inlet sleeve 416 inner inlet tubes 418 that extend in inside.

Pusher 420 has one and promotes a wall 421 and an outer sleeve 422.Sleeve 422 is connected with promotion wall 420 in its periphery.Promote wall 421 and have an outer surface 4211 and an inner surface 4212.Promote wall 421 and sleeve 422 and be generally down cup-shaped, cup has the end wall of the cup that is formed by promotion wall 421 and the cylindrical side wall that is formed by sleeve 422.Promoting wall 421 provides from the elastically deformable lappet of inner surface 4212 extensions or the spring of blade 427 forms.In addition, promote wall 421 and provide a locking member 428 that also extends from inner surface 4212.This locking member 428 is provided with at least one has the locking profile 4281 of one side to the locking rim of inner surface 4212.In the practice, locking member can provide a plurality of and go up the locking profile that forms from the column outside that promotes wall 421 extension downwards.

Sleeve 422 provides a spreading wall 423 and a guiding wall 424.

Spreading wall 423 is connected with promotion wall 421 peripheries by its top.Guiding wall 424 is connected with spreading wall 423 bottoms by its top.Spreading wall 423 provides an outer surface and an inner surface 4232.Inner surface to small part is columniform so that form a sealing sliding cylinder.Inwall 4232 preferably provides a whirlpool system 426 that forms a recessed net in periphery 4232.This whirlpool system can comprise one or more whirlpool passages and a swirl chamber.In addition, spreading wall 423 provide one wear wall and the spreading hole crossed so that extend to outer surface at inner surface.Spreading hole 425 relative whirlpool systems 426 are placed in the middle.The whirlpool system can be identical with the whirlpool system among Fig. 3 a and Fig. 3 b.

Guiding wall 424 is engaged in the annular space that forms between pilot tape 414 and the sleeve pipe 413.Guiding wall forms one at the pilot tape 414 4141 times shoulders 4241 as bearing in edge that extend internally.Preferably, the inner surface 4242 of guiding wall 424 forms a main cylinder, and side main piston 4133 can move by sealing contact mannar within it.Guiding wall 424 is promoted by the spring 440 that edge 4141 that shoulder 4241 is extended internally relatively promotes.Spring 440 can be preferably integrally formed with pusher, and maintenance and guiding wall 424 are point-blank.Like this, main piston 4133 can slide in pusher, or more accurately, slides in inside forms the guiding wall 424 of main cylinder 4242.

In this example, piston component 430 forms one and one and moves the differential piston that the inlet valve member matches.Piston component 430 has one at its peripheral disk body 431, forms two seal lip 432 and 433.Disk body 431 and its two antelabium form differential piston jointly.In inactive state shown in Figure 5, top lip 432 places whirlpool system top, and bottom lip 433 places whirlpool system below.Like this, the whirlpool system can not communicate with pusher inside.In addition, disk body 431 forms one as supporting by promoting the elastically deformable shell fragment 427 free-ended annular recesses 4311 that wall 421 forms.In addition, piston component 430 forms one from the fastening assembly 439 of disk body 431 to 421 extensions of promotion wall.Described fastening assembly 439 provides the fastener head 4392 that is positioned at shell fragment 4391 ends.Fastener head 4392 be engaged in inwall 4212 and the locking profile 4281 that forms by locking component 428 between.Like this, fastener head can move in the qualification stroke between locking profile and the promotion wall inner surface.Yet elastically deformable shell fragment 427 pushes away piston component 430 and promotes wall 421, engages with locking profile 4281 thereby push fastener head 4392.By elasticity of flexure deformable shell fragment 427, fastener head 4392 is contacted with inner surface 4212.So just there is the stroke ways to restrain of forming by the collaborative fastening assembly of locking component.

When piston component 430 can limit in the stroke axially when mobile one, it is controlled by in the pusher.But elastically deformable shell fragment 427 pushes inactive state with piston component, and at this moment fastener head is engaged in the locking profile.In addition,

seal lip

432 and 433 is positioned at the both sides of whirlpool system so that its isolation.This is corresponding with inactive state shown in Figure 5.

In addition, piston component 430 also forms an axle center bar 437, has the respective profile 4161 in an inlet valve profile 438 collaborative sleeves 416 to form inlet valve in its bottom.In inactive state, inlet valve is opened.

Like this, between body, pusher and piston component, produce a pump chamber 1.Pump chamber 1 is isolated from the outside by bottom lip 433 but is communicated with liquid reservoir by the inlet valve of opening.

From inactive state as shown in Figure 5, may on the promotion outer surface 4211 that promotes wall 421, exert pressure.This makes pusher move relative to body with piston component.In the phase I, because deeper penetrating in the sleeve 416, axle center bar 437 seals sliding-contact to set up, inlet valve cuts out.Therefore pump chamber 1 is isolated with extraneous.So the fluid in the pump chamber is limited by the increase of pressure, this makes piston component 430 move to promoting wall 421 relative to the elastic force that is applied by resilience shell fragment 427.So bottom lip 433 moves up, arrive whirlpool system 426 up to it.Therefore, fluid finds an exit passageway by whirlpool system and spreading hole.This operating state as shown in Figure 6.For reaching this position, the pressure in the pump chamber is necessary the elastic force greater than the elastically deformable shell fragment 427 that is equivalent to a pretensioned spring.Piston component 430 can move up to fastener head 4392 near inner surface 4212 towards promoting wall 421.At this state, as shown in Figure 6, the bottom seal lip 433 of differential piston is positioned at the whirlpool system.Cavity pressure one reduces once more, and piston component 430 just can be removed from promoting wall 421 under from the driving force of resilience shell fragment 427 again.At last, piston component 430 returns its inactive state as shown in Figure 5.

When allowing piston component 430 to have to a certain degree the free degree to move axially, it is controlled by in the pusher.Should also be noted that pretensioned spring is integrally formed with pusher.In addition, the controlled and mobile restricted of piston component is to realize by pusher and piston component fully, need not other other parts.

In embodiment illustrated in fig. 7, dispenser member comprises body 510, one pushers, 520, one piston components 530 and a retainer ring 570.This dispenser member be installed in one inner form liquid reservoir 5 and provide one do not have on the container 550 of the fixing neck 553 form openings of profile.

The difference of embodiment is the no longer fixedly work of liquid reservoir opening of body in present embodiment and the prior figures.But body 510 engages with one and the retainer ring 570 that is tightly connected of liquid reservoir opening.For this purpose, retainer ring 570 provides a self sealss antelabium 572, and it is stressed and engages into sealing means in the opening 553 of container 550.Retainer ring 570 provides an adapter ring near opening 553 tops (abutment collar) 571.In addition, this body forms the flange 575 that extends internally, and it limits the opening by body 510 dip-tubes 515.Retainer ring 570 also provides the recessed sleeve pipe 573 that an inside defines body 510.Sleeve pipe 573 extends on its top by pilot tape 574.In addition, retainer ring 570 also forms a return and pretensioned spring 576, and it is that extend at the center from sleeve pipe 573 with integral way and with pilot tape 574 inside.At its outer surface, pilot tape 574 also forms a fillet 5741 collaborative with pusher 520.

By near the flange 575 that extends internally, body 510 engages in the retainer ring 570 or engages into more accurately in the sleeve pipe 573.As the description among other each embodiment of front, body 510 forms a sliding cylinder 517, one dip-tubes 515 and an inlet sleeve 516.

Body and ring are configured in two benefits in the different parts that separate is to give body to use different materials with ring.An ornamental member body then is a functional parts to this point owing to encircle normally, has obtained special proof.For example, if ring is made by a colored plastic material, dip-tube often is visual then making with same material scarcely owing to it passes container.In addition, when body is when making separately, the spring 576 of making band 570 is easier.

Piston component 530 can be identical with the piston component of Fig. 1-previous embodiment shown in Figure 4.But, can notice that piston component 530 provides one and is designed to center on the guiding rib 5351 that sleeve 516 slides in the non-tight mode.

As Fig. 1-embodiment illustrated in fig. 4, piston component forms a differential piston and a main piston.Differential piston slides in pusher 520, and main piston then slides in sleeve 517.Piston component 530 is designed to leave the promotion wall of pusher when pressure increases.This makes a spray-hole 525 be opened, and a whirlpool system 526 that provides in guiding wall 523 inner surfaces preferably is provided this spray-hole.Also it may be noted that pusher bottom and fillet 5741 engagements.The external diameter of pusher external diameter and container is basic identical.By this way, retainer ring 570 is only visual in a very little scope.

Claims

1, a kind of fluid dispenser member (100; 200; 300; 400) the spreading wall (123 that, has qualification one outer surface and first inner surface; 223; 323; 423), described wall provides a straight-through spreading hole (125 that connects described first inner surface and outer surface; 225; 325; 425), described first inner surface forms a piston (131,132,133; 231,232,233; 331,332,333; 431,432,433) sealing sliding cylinder, described piston are suitable for moving in order to optionally to open described spreading hole with sealing contact mannar in described sliding cylinder, described piston forms a wall assembly of a fluid cavity (1), and the fluid in fluid cavity is selectively placed under the pressure; Described first inner surface is at described sliding cylinder place, directly sails against the current from described spreading hole to form a fluid whirlpool system (126; 226; 326; 426),

It is characterized in that described spreading wall is by a general cylindrical sleeve (122; 222; 322; 422) form, and provide the guiding wall (124,224 of a qualification one second inner surface; 324; 424), the internal diameter of this second inner surface is greater than the internal diameter of described sliding cylinder; Described piston is can adapt to the variation of described fluid cavity internal pressure and mobile differential piston, a described differential piston and a main piston that contacts with a main cylinder with the sealed sliding flowing mode (136; 236; 336) become one or fastening with it.

2, fluid dispenser member according to claim 1, wherein said sliding cylinder, spreading hole and whirlpool system and described spreading wall are integrally formed.

3, according to the described fluid dispenser member of aforementioned arbitrary claim, wherein said spreading wall has one by one and promotes wall (121; 221; 321; 421) pusher (120; 220; 320; 420) form, described promotion wall extends in its periphery by described spreading wall.

4, fluid dispenser member according to claim 3, wherein said differential piston flexibly promotes with respect to promoting wall, and can open in order to open described spreading hole from described promotion wall shift.

5, fluid dispenser member according to claim 3, wherein said differential piston flexibly push away described promotion wall, and can shift to described promotion wall.

6, fluid dispenser member according to claim 4, wherein said promotion wall provide the inner surface (1212 of a wall assembly of the described fluid cavity of a formation; 2212; 3212).

7, fluid dispenser member according to claim 1, described differential piston have at least one seal lip (132,133; 232,233; 332,333; 432,433), with described sliding cylinder sealing sliding-contact.

8, fluid dispenser member according to claim 1, it has one and is used as the body (110 that matches with a fluid liquid reservoir; 210; 310), described body forms a main cylinder, wherein has a main piston to slide.

9, fluid dispenser member according to claim 1, wherein said spreading wall is formed by a general cylindrical sleeve (422), and described sleeve further forms a guiding wall (424), and it limits the inner surface of the main cylinder of a formation main piston.

10, fluid dispenser member according to claim 1, wherein said whirlpool system comprises at least one whirlpool passage (1262) and is a swirl chamber (1261) and a peripheral feed ring (1263) at center with described spreading hole.

11, fluid dispenser member according to claim 1, the recessed net of wherein said whirlpool system's formation one described relatively spreading wall general cylindrical inner surface.