CN1071147C - Pump device with collapsible pump chamber having integral shipping seal - Google Patents

Pump device with collapsible pump chamber having integral shipping seal Download PDF

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Publication number
CN1071147C
CN1071147C CN94192582A CN94192582A CN1071147C CN 1071147 C CN1071147 C CN 1071147C CN 94192582 A CN94192582 A CN 94192582A CN 94192582 A CN94192582 A CN 94192582A CN 1071147 C CN1071147 C CN 1071147C
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CN
China
Prior art keywords
valve
pump chamber
pump device
pump
collapsible
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN94192582A
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Chinese (zh)
Other versions
CN1125915A (en
Inventor
R·J·彼得森
R·E·施塔利
J·R·施蒂戈
J·E·赖芬堡格
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Procter and Gamble Co
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Procter and Gamble Co
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Filing date
Publication date
Priority claimed from US08/082,001 external-priority patent/US5303867A/en
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of CN1125915A publication Critical patent/CN1125915A/en
Application granted granted Critical
Publication of CN1071147C publication Critical patent/CN1071147C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/0064—Lift valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0037—Containers
    • B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
    • B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B05B11/0062—Outlet valves actuated by the pressure of the fluid to be sprayed
    • B05B11/007—Outlet valves actuated by the pressure of the fluid to be sprayed being opened by deformation of a sealing element made of resiliently deformable material, e.g. flaps, skirts, duck-bill valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1032—Pumps having a pumping chamber with a deformable wall actuated without substantial movement of the nozzle in the direction of the pressure stroke
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1033—Pumps having a pumping chamber with a deformable wall the deformable wall, the inlet and outlet valve elements being integrally formed, e.g. moulded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1035—Pumps having a pumping chamber with a deformable wall the pumping chamber being a bellow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1059—Means for locking a pump or its actuation means in a fixed position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1073—Springs
    • B05B11/1077—Springs characterised by a particular shape or material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1097—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle with means for sucking back the liquid or other fluent material in the nozzle after a dispensing stroke

Landscapes

  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Closures For Containers (AREA)
  • Massaging Devices (AREA)
  • Display Devices Of Pinball Game Machines (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention provides a liquid dispensing pump (20) for use with consumer product packages with a shipping seal. The housing of the pump device includes an upper housing (24) and a lower housing (26) which are movable relative to each other between open and closed shipping seal positions. The liquid dispensing pump (20) includes a collapsible pump chamber (40), e.g. a bellows. Integral with the bellows (40) is at least one functional element of the shipping seal. The housing includes cooperating actuation elements which prevent actuation of the pump device when the shipping seal is closed. The housing may also include a tamper evident device which prevents actuation of the pump device prior to removal of the tamper evident tab; and may prevent movement of the housing from the closed shipping seal position to the open shipping seal position prior to removal thereof. The bellows (40) may also include an integral valve including a valve member, a valve seat and a valve opening which are all integral components of a wall of the collapsible pump chamber (40), the valve seat facing one side of the wall and the valve member being formed at an angle away from the other side of the wall so that upon pushing the valve member through the valve opening the valve member is biased against the valve seat.

Description

Pump installation with collapsible pump chamber of band integral shipping seal
Background of invention
The present invention relates to be used for the liquid distributing pump device of liquid consumer product container, especially relate to the liquid distributing pump device that utilizes collapsible pump chamber (as bellows).
The description of prior art
The known liquid distributing pump device that is used on the consumables container has varied.These dispensing pumps can be used for for example transmitting liquid with foam, spraying or liquid bundle (for example being used to increase the cleaning of moisture content) form.The most frequently used this dispensing pump device adopts piston and cylinder shape pump chamber.This pump chamber requires to keep the liquid flow sealing between piston and cylinder.There is common shortcoming in this liquid sealing.For example produce sizable friction when the relative cylinder moving of piston, this is because these parts must cooperate closely to constitute sealing.Scheme additionally or as an alternative, various parts itself must be manufactured in the strict tolerances and form sealing so that each parts suitably cooperates.In addition, As time goes on, worsen, thereby reduce the efficient of pump because of the fretting wear meeting of these parts makes this sealing.In addition, these pistons and cylinder dispensing pump device are not all made enough effort usually to reduce the quantity and the totle drilling cost of parts when design.
Except that piston and cylinder type pump, also developed the liquid distributing pump device of several other forms, it adopts some shortcoming of being with telescopic pump chamber, this pump chamber to overcome piston and air-cylinder type pump chamber.For example, adopt the balloon type pump chamber.More usually employing activity elasticity bellows are as the collapsible pump chamber of liquid distributing pump device.This bellows pump allows pump chamber to expand not to be had and piston and the required relevant shortcoming of motion sealing of cylinder with shrinking.In addition, bellows can replace piston, cylinder and spring, thereby reduce molded and assembly cost.Yet existing these liquid distributing pump devices do not have whole advantages of invention as herein described.
The present invention's general introduction
According to the content of one aspect of the invention, provide a kind of and be used for from the manually-operated dispensing pump device of supply container by outlet pumping liquid product.This device has: this dispensing pump device is connected to housing on this supply container hermetically, and a fluid passage part that provides fluid to be communicated with to outlet from the supply container downstream is provided this housing; One inlet valve is arranged in this fluid passage, thereby this valve cuts out and prevents that liquid stream from flowing through this valve and open this valve during negative downstream pressure during the positive downstream pressure; One outlet valve is arranged in the fluid passage, and this opening of valves is flowing through this valve and close this valve during negative upstream pressure to allow liquid during the positive upstream pressure; It is characterized in that this device also comprises: a shipping seal that comprises two function element, this two function element cooperatively interacts, and seal fluid passage when in the closed position allows liquid to flow through this fluid passage when the enable possition; A collapsible pump chamber has constituted inlet valve downstream and outlet valve liquid upstream channel part, and this collapsible pump chamber comprises that one of function element of this shipping seal is an integrated part.
Best, this manually operated dispensing pump device comprises a lockout feature relevant with housing work, the actuating of this pump installation when this can prevent that shipping seal is in the closed position, and allow the actuating of this pump installation when shipping seal is in the enable possition.In addition, this manually operated dispensing pump device preferably also comprises a demountable anti-abuse protruding handle relevant with upper shell or lower house work, and this can prevent the actuating of this pump installation before the protruding handle removal of this anti-abuse.
Content provides a kind of collapsible pump chamber that is used for manually operated dispensing pump according to a further aspect of the invention.This collapsible pump chamber comprises a valve as its global facility.This valve comprises a valve member, a valve seat and a valve opening, these all are that this can stretch the integrated part to the wall of pump chamber, this valve seat is facing to a side of this wall, and this valve member forms the opposite side that leaves this wall at a certain angle, therefore, when this valve member is pushed away valve opening, this valve member was biased on this valve seat.
The accompanying drawing summary
Specification can believe that to list and discriminatively the present invention to be proposed the claim end of protection domain in detail in conjunction with the accompanying drawings, the present invention can understand better from the explanation of following most preferred embodiment that wherein identical label is represented identical element.Wherein
Fig. 1 is the decomposition diagram of seeing from the top of the most preferred embodiment of liquid distributing pump of the present invention;
Fig. 2 is the decomposition diagram of seeing from the bottom of liquid distributing pump shown in Figure 1;
Fig. 3 is along the cutaway view of the original protruding handle of anti-abuse with the center line of the shipping seal of closing;
Fig. 4 is the cutaway view that is similar to Fig. 3 that anti-abuse protruding handle dismounting back and shipping seal are held open;
Fig. 5 is a pump shown in Figure 1 when work, during down stroke similar in appearance to the cutaway view of Fig. 3;
Fig. 6 is a pump shown in Figure 1 when work, during false trips similar in appearance to the cutaway view of Fig. 3;
Fig. 7 is the cutaway view similar in appearance to Fig. 3 of another most preferred embodiment of the liquid distributing pump of the present invention's liquid of being used for the pumping relatively high capacity;
Fig. 8 is the cutaway view similar in appearance to Fig. 3 of another most preferred embodiment of the liquid distributing pump of the present invention shipping seal that has stationary nozzle and unlatching;
Fig. 9 is a pump shown in Figure 8 when work at the cutaway view similar in appearance to Fig. 5 during down stroke;
Figure 10 is pump shown in Figure 8 cutaway view similar in appearance to Fig. 6 during false trips when work;
Figure 11 is the cutaway view of the air-breather of replacement similar in appearance to Fig. 6;
Figure 12 is the cutaway view of the air-breather of another replacement similar in appearance to Fig. 6;
Figure 13 is the cutaway view of the air-breather of another replacement similar in appearance to Fig. 6;
Figure 14 is the cutaway view of the air-breather of another replacement similar in appearance to Fig. 6.
Detailed description of the present invention
In most preferred embodiment shown in Figure 1, the invention provides a kind of liquid distributing pump device, totally represent with 20.This dispensing pump device 20 especially can use with fluid product supply container 22 (part shown in Fig. 3).This illustrated liquid distributing pump 20 mainly comprises upper shell 24, one lower houses, 26, one outlet valve member 30 and an import valve member 34, one sag pipes 38 and a flexible pump chamber 40.
Term used herein " collapsible pump chamber " is defined as such pump chamber, and promptly this pump chamber to small part is surrounded by elastic wall; This elastic wall moves in such a way in response to Manual pressure, and promptly the volume in this pump chamber reduces and do not have sliding friction between any element that constitutes this pump chamber.Such collapsible pump chamber can comprise balloon shape diaphragm and by the bladders of making such as thermoplastic, elasticity thermosets (comprising rubber) etc.(not shown) for example, this collapsible pump chamber can comprise: around (or being covered by this elastomeric material) spiral metal or plastics spring of a kind of elastomeric material; Thereby produce the pump chamber of a sealing.Yet the illustrated and preferred collapsible pump chamber of this kind is a kind of bellows 40, and for example a kind of about cylinder type hollow structure has the wall of concertina.Bellows are best, and this is that as an elasticity spring effect, so each bellows has been cancelled the requirement to spring because each bellows can be made into flexiblely.In addition, the function element that this collapsible pump chamber comprises a shipping seal is parts as a whole, and is as described below.Term used herein " integral body " is defined as mold pressing or is configured as single inseparable parts.
Referring to Fig. 3, upper shell 24 is socketed on the lower house 26, and is clamped by the auxiliary section between ring edge 25 and the circumferential rib 27.This lower house 26 comprises pump installation 20 is connected on the screw thread 28 on the container 22 hermetically.In addition, lower house 26 can adopt bayonet coupling structure (not shown), for example, on November 1st, 1988 authorize people's such as Dunning U.S. Patent No. 4781311 or authorized on October 7th, 1975 described in the U.S. Patent No. 3910444 of Foster like that.
In addition, lower house 26 comprises an intake channel 42 with an inner conical import valve seat 35.This valve seat 35 cooperates formation inlet valve 34 and 35 with import valve member 34.In addition, this lower house 26 comprises three spacing protruding handles 36 that equally spaced are provided with, and as described below, this protruding handle 36 carries out spacing at pump installation 20 duration of works to import valve member 34.In addition, also can use the ball valve (not shown).This lower house 26 also comprises 37, three 44, one flange connectors 45 of actuating flange that uniformly-spaced are provided with of passage and three anti-rotating flanges 46 that uniformly-spaced are provided with.Frictionally be engaged on the intake channel 42 of lower house 26 is a sag pipe 38 that stretches into down in the container 22.
Upper shell 24 comprises an exit passageway 48 that ends in the dispensing orifice 50.One inner cylindrical wall 52 is angled and be positioned at upper shell 24 with relative exit passageway 48, and is connected with this exit passageway 48.In addition, (as shown in Figure 2), this upper shell 24 had a flange 25, and this flange 25 has three 58, one excrescences 60 of 56, three pairs of tactile convex bodys of 54, three stop-motion bodies of actuation channel and the protruding handles 62 of dismountable anti-abuse of uniformly-spaced being provided with.The evidence that provides pump to activate in advance is provided term used herein " anti-abuse "; When also not abusing, product do not need (because of the entire pump device can be backed out and change).Say that on this meaning the abuse evidence is important, because it makes and carries out product sampling from shelf and do not encouraged.In addition, this housing 24 and 26 is included in any abuse evidence feature (illustrating) of removal pump installation 20 from the container 22 of known expression in the prior art.
By housing 24 and 26 be a fluid passage that constitutes by several sections, this several sections comprises sag pipe 38, the intake channel 42 of lower house 26, the exit passageway 48 of upper shell 24 and collapsible pump chamber 40.This fluid passage makes from the end of sag pipe 38 in supply container 22 and keeps fluid to be communicated with along downstream direction to tap.Term used herein " downstream " is defined as from supply container 22 to tap 50 direction, and " upstream " is defined as from tap 50 to supply container 22 direction.Similarly, term used herein " entrance point " is meant upstream extremity, and " port of export " is meant downstream.
The partially liq passage is to be limited by collapsible pump chamber 40 to form.But this collapsible pump chamber 40 has a kind of structure of flexible manual compression, therefore reduces the volume in collapsible pump chamber 40.Although can use the spring (not shown) to be back to initial configuration to help this collapsible pump chamber 40, this collapsible pump chamber 40 itself preferably has enough elasticity, thereby after Manual pressure was removed, it can return its original state.
Shown collapsible pump chamber 40 is bellows 40.Preferred bellows 40 should have several quality qualities.For example, these bellows 40 should make this pump installation be easy to activate.This just means usually that these bellows have the elastic force of from about 1.36 kilograms (3 pounds) to about 2.27 kilograms (5 pounds).These bellows 40 should have the hysteresis and the creep of excellent elasticity, minimum.In addition, these bellows 40 are preferably in radial direction and have good rigidity (hoop strength) and to guarantee these bellows 40 radial deformation does not take place in normal working conditions.At last, these bellows 40 preferably have good volumetric efficiency, i.e. the variation of the internal capacity that gets divided by the internal capacity of complete expansion.
Some geometric properties that can be used to make these bellows 40 possess suitable quality quality comprise the diameter of bellows 40.Diameter is big more, and elastic force is low more, and radial rigidity is also low more.Although wish that all bellows 40 have lower elastic force usually, lower radial rigidity is a problem really, and for example, these bellows 40 can leak gas suddenly in precompression plate machine formula sprayer.The wall thickness that increases the ripple place will increase radial rigidity, but this can increase elastic force, thereby cause the volumetric efficiency of these bellows to reduce.Minimizing ripple angle usually can reduce elastic force but also reduce volumetric efficiency.This moire angles is the set at two angles, and an angle is positioned at one perpendicular to above axis and the line by a ripple starting point, and another angle is positioned at this line below.The moire angles that is preferably in this normal top is about 45 ° (these make these bellows removal from the core pin easier) for the moire angles under about 30 ° of these normals.Increase ripple quantity will reduce elastic force and also reduce volumetric efficiency.
Although do not wish to retrain to some extent, should believe that the main component of elastic force is a wall thickness, moire angles up and down, and main elastic component is the selection of material.
The selection of material also can be assisted and be made these bellows 40 have more suitably quality quality.Usually, this material preferably has the material that young modulus is lower than 10000 psi.For flushing pump, it is better that the young modulus of material is lower than 3000psi.Material should be able to keep desired mechanical performance and stable size also can resist stress fracture.These characteristics all should possess with air and during with fluid product.Therefore, for the plate machine formula sprayer that is generally used for spraying the acid that comprises a large amount of water or alkali cleaning products, its material is the insensitive and effect that can not be hydrolyzed to the pH value.The example of this material comprises: polyolefin, for example, polypropylene, low density polyethylene (LDPE), very low density polyethylene, ethylene-vinyl acetate fat.Spendable other material comprises thermosetting (as rubber) and thermoplastic elastomer (s).The material that plate machine formula sprayer adopts preferably has vinyl acetate content and is about macromolecule ethylene-vinyl acetate fat between 10% to 20%.May not have problems for other pump (for example flushing pump) pH value and hydrolysis.It may be prior replacing low elasticity power with high resiliency.In this case, better with the polyethylene of low modulus ethylene-vinyl acetate fat or extra-low density.
The exemplary bellows of being made by the polyethylene of ethylene-vinyl acetate fat or extra-low density 40 have the interior minor diameter of the interior major diameter of 1.52 centimetres (0.6 inches), 1.02 centimetres (0.4 inches) and the wall thickness between about 0.51 centimetre (0.02 inch) to 0.76 centimetre (0.03 inch).The set moire angles should be about 75 °, 45 ° of 30 ° of last moire angles and time moire angles.
The entrance point of this manual compressible pump chamber 40 is connected on the substantial cylindrical inwall of lower house 26 by frictional fit.When connecting, cooperate with three anti-rotating flanges 46 on the lower house 26 at three on the entrance point of bellows 40 notches 47 that uniformly-spaced are provided with.This collapsible pump chamber 40 comprises near the flange 64 of an integral ring-shaped stretching, extension its entrance point.The inner surface of this flange 64 and lower house 26 is against sealing, thereby forms a breather valve 26 and 64.Therefore, this breather valve 26 and 64 comprises as the flange 64 of valve member work and the lower house 26 of valve seat is provided.
Similarly, the port of export of collapsible pump chamber 40 is connected on the inner cylindrical wall 52 of upper shell 24 by frictional fit.The port of export of this collapsible pump chamber 40 comprises an elongated passageway 66 that has monoblock type outlet valve seat 32, and this valve seat 32 cooperates formation outlet valve 30 and 32 with outlet valve member 30.This elongated passageway 66 also comprises holistic outlet opening 68.
Import valve member 34 and 35 and outlet valve member 30 and 32 be arranged in fluid passage.These valves can be the known any types of prior art, comprise duck-beak type valve, ball valve, lift valve etc.This outlet valve member 30 preferably provides the light weight ball valve or the poppet valve element of the suck-back effect of hereinafter discussing.
As shown in Figure 3, liquid distributing pump 20 is in the closed position, and in this position, the outlet opening 68 of bellows 40 is not aimed at exit passageway 48, thereby forms the fluid transport sealing.This shipping seal comprises several function element, i.e. outlet opening 68 and the movable cylindrical wall 52 of this outlet opening relatively, thus outlet opening 68 is sealed up.Therefore, by sag pipe 38, the fluid passage that the exit passageway 48 of the intake channel 42 of lower house 26, bellows 40 and upper shell 24 forms is sealed up hermetically, thereby forms shipping seal.
In addition, when shipping seal seals, activate flange 44 and actuation channel 54 misalignment that stop pump installation 20 to activate.Do not have this characteristic, during the sealing of shipping seal device, the collapsible pump chamber 40 interior pressure that caused by the pump installation of attempting to activate 20 increase, and may damage collapsible pump chamber 40.At detent position, each activates a side of flange 44 upper ends against an end of living each retainer 56.Each activates the opposite side of flange 44 against one that lives in the tactile convex body 58.
In addition, prevent the protruding handle 62 of abuse normally flatly stretched lower house 26 from upper shell 24 top.The protruding handle 62 of illustrated anti-abuse comprises a line of rabbet joint 63 that cooperates with lock flange 45, thereby prevents that upper shell 24 from rotating relative to lower house 26.Therefore, removal should anti-ly not abused protruding handle 62, and shipping seal just can not be opened.In addition, removal should anti-ly not abused protruding handle 62, and pump installation 20 can not activate.
As shown in Figure 4, liquid distributing pump 20 is in the enable possition.In case should the protruding handle 62 of anti-abuse by removal, then upper shell 24 just relatively lower house 26 turn to the enable possition from the closed position.Should anti-ly abuse protruding handle 62 can be by it is rotated and removal simply up.This rotation interacts the protruding handle 62 of protrusion 60 and anti-abuse, thereby produces an active force that protruding handle 62 is pushed away upper shell 24.This active force makes this protruding handle 62 along this protruding handle 62 is connected to the fine rule on this upper shell 44 and breaks away from this upper shell 24.Therefore, because this active force,, continue this protruding handle 62 of rotation and will cause that this protruding handle 62 ruptures if this protruding handle 62 rotates to the point that the locking line of rabbet joint 63 and lock flange 45 are unclamped.Therefore, before the protruding handle fracture of this anti-abuse, this shipping seal can not be opened.Therefore without a doubt, this is with regard to the generation of the thing of any evidence of having prevented from not stay from the sampling of fluid product shelf by the actuating of pump installation 20 this sampling.
Along with upper shell 24 rotations, each activates flange 44 and moves to from the position against 56 90 ° of adjacent stop-motion bodies from the position against a stop-motion body 56.During turning, each activates flange 44 facing to 58 motions of tactile convex body.Tactile and/or sense of hearing formula signal that this convex body 58 provides the shipping seal (at first from the closed position again to the enable possition) of this dispensing pump device 20 moving.This tactile convex body 58 makes this pump installation 20 remain in unlatching or closed position by interacting also can assist with actuating flange 44.
Referring to Fig. 4,, activate flange 44 and aim at actuation channel 54 in the enable possition.In addition, monoblock type dispensing orifice 68 is aimed at exit passageway 42, thereby opens fluid passage.When upper shell 24 relative lower houses 26 rotated, upper shell 24 is bellows 40 rotations relatively also.Part is because cooperating between the anti-rotation flange 46 of groove 70 and the lower house 26 on the entrance point of bellows 40, thereby these bellows 40 are static with respect to lower house 26 maintenances.On the contrary, with before exit passageway 48 is aimed at, the elongated passageway 66 of bellows 40 rotates in the inner cylindrical wall 52 of upper shell 24 until outlet opening 68.
Referring to Fig. 5, in case pump installation is in the enable possition, it facilitates uses manual activation.The manual activation of this pump installation 20 makes upper shell 24 make axially reciprocating with respect to lower house 26 and realize.When this reciprocating motion is finished, activate flange 44 and in actuation channel 54, slide.Reciprocating during down stroke at this, import valve member 34 is sealed on the import valve seat 35.This will cause that the pressure in the collapsible pump chamber 40 increase, thereby cause that outlet valve member 30 motions leave outlet valve seat 32, thereby open outlet valve 30 and 32.Therefore, the liquid that is positioned at the collapsible pump chamber 40 of volume minimizing distributes discharge by monoblock type outlet opening 68 and exit passageway 48.When this liquid distributed discharge, it provided masterpiece upwards to be used for outlet valve 30, made the end motion of outlet valve member 30 towards monoblock type elongated passageway 66.
When the Manual pressure removal, bellows 40 begin to expand because of its elasticity.Scheme can be set up the elasticity that a spring (showing) replaces or compensate bellows 40 as an alternative.This expansion forms a negative pressure (for example being lower than atmospheric pressure) in collapsible pump chamber 40.Therefore, atmospheric pressure pushes back to bellows 40 with the liquid in the exit passageway 48 (being relative tack liquid at least), till outlet valve member 30 seals on the outlet valve seat 32 again, and final plant closure outlet valve 30 and 32.Certainly, monoblock type elongated passageway 66 is long more, and it is long more that valve member 30 is sealed to the time required on the valve seat, thereby the liquid that suck-back is gone in the bellows 40 is many more.This suck-back is desirable, because it can help to keep two kinds of distributing fluids passage cleanings between the operating mode.
Referring to Fig. 6, in case outlet valve 30 and 32 cuts out,, produce negative pressure in the bellows 40, thereby cause that 34 motions of import valve member leave import valve seat 35, thereby open inlet valve 34 and 35 along with the continuation of wind 40 is expanded.This import valve member 34 by three spacing protruding handles 36 limit be unlikely lift off a seat 35 too far away.Therefore, the liquid that comes from container 22 is crossed inlet valve 34 and 35 and is sucked in the bellows 40 through sag pipe 38.Simultaneously, air passes through around the cup seal device of annular lip vent valve member 64 and vent valve seat 26, and flows into the volume of container 22 with compensation liquid of discharge from container 22 through passage 37.
Referring to Fig. 7, a kind of embodiment of the big capacity liquid of distribution of dispensing pump device of the present invention is provided, totally use label 120.This pump 120 is identical with aforesaid pump installation 20 basically.But lower house 126 stretches in the container 122, thereby allows bellows 140 to increase length.The most important thing is that the protruding handle 162 of anti-abuse is connected on the lower shell 126 rather than on the upper shell 124.Though the protruding handle 162 of anti-abuse does not stop in the rotation of closing and opening pump installation 120 between the shipping seal position, when shipping seal is in the enable possition, it can prevent the actuating of the pump installation 120 that the interference because of exit passageway 148 nozzle on every side causes.The discussion that the operation of this pump installation 120 is made with aforementioned relative pump installation 20 is identical basically.
Referring to Fig. 8, label 220 expression an alternative embodiment of the invention, this liquid distributing pump device is shown in the enable possition.This pump installation 220 is provided with stationary nozzle.The housing 224 and 226 of this pump installation 220 comprise with previous embodiment in substantially the same tactile convex body 258, activate flange 244 and actuation channel 254.Therefore, this pump installation 220 has the shipping seal position (showing) of (shown in accompanying drawing) opening and closing, and its function is with aforesaid identical.Yet housing 224 and 226 intake channel 242 and exit passageway 248 all are arranged in lower house 226.In addition, the groove 270 that on the upper end of upper shell 226 and bellows 240, is respectively arranged with anti-rotating flange 246 and is mated.Therefore, when upper shell 224 relative lower houses 226 rotated to the enable possition, the bellows 240 of present embodiment were with upper shell 224 rotations.
These bellows 240 comprise the following function element that becomes integral body with it: vent valve member 264, import valve member 234, import valve seat 235, outlet valve member 230, the function element of outlet valve seat 232 and shipping seal 68.The vent valve member 264 of these bellows 240 is the elastic ring flange identical with aforementioned bellows all-in-one-piece basically.Each of import valve member 234 and outlet valve member 230 all is a U type ligulate valve member.This valve member 234 and 230 each end wall 275 of (i.e. the direction of import valve member 234 indications in Fig. 8) relative these bellows molded at angle (as shown in FIG. or 90 °) in bellows 240 all.
In case molded, outlet valve member 230 is finished its opening, thereby this valve member 230 falls to being seated on the outlet valve seat 232.So this outlet valve member 230 is closed by bias voltage.The size of this bias voltage to a certain extent can be by revising the angle that outlet valve member 230 is molded into, the thickness of control hinge portion 233 and the selection of material and control.Therefore, powerful if desired biasing force (for example applicable cases of plate machine formula sprayer), then this angle should be quite big, and hinge portion 233 can be relative thick, and bellows 240 can form by highly elastic material is molded.If need weak biasing force (for example requiring to have the flushing pump of jumbo suck-back effect), then take opposite measure.
Import valve member 234 is not also finished its opening, so it is opened into to a certain degree by bias voltage.Bias amount also is controllable herein.This import valve seat 232 is the thin strut rail spares with bellows 240 one.In addition, this import valve seat 232 also can be the adjacent level wall of lower house 226.
As shown in Figures 9 and 10, the work of this pump installation and previous embodiment is closely similar.The manual activation of this pump installation is by making upper casing spare 224 relative lower houses 226 make axially reciprocating and realize.Along with this reciprocating, activate flange 244 and in actuation channel 254, slide.This reciprocating during down stroke, import valve member 234 is sealed on the import valve seat 235.This just causes that pressure increases in pump chamber 240, thereby causes that outlet valve member 230 motion leaves outlet valve seat 232, finally opens this outlet valve 230 and 232.Therefore, the liquid in the volume that this pump chamber 240 reduces is assigned with away by monoblock type outlet opening 68 and exit passageway 248.
When the Manual pressure removal, bellows 240 begin to expand because of its elasticity.This expansion forms a negative pressure in this pump chamber 240.Therefore, atmospheric pressure pushes back to the liquid in the exit passageway 248 in these bellows 240, till outlet valve member 230 is sealed on the outlet valve seat 232 once more, and final plant closure outlet valve 230 and 232.Certainly, the bias voltage that acts on the outlet valve seat 232 is low more, and it is many more that outlet valve member is sealed to the time required on the outlet valve seat 232, and the liquid that therefore is back to bellows 240 is many more.
Referring to Figure 10, in case outlet valve 230 and 232 cuts out, the negative pressure that produces because of these bellows 240 continuation expansions in bellows 240 will make 240 rotations of import valve member leave import valve seat 235, finally opens this inlet valve 234 and 235.Therefore, the liquid from container 222 flows into bellows 240 through sag pipe 238 and through this inlet valve 234 and 235.Simultaneously, air passes through and discharges with compensation through passage 237 inflow containers 222 volume of the liquid of this container 222 around the cup seal device of annular lip valve member 264 and vent valve seat 224.
The replacement scheme of Figure 11 to 14 expression ventilation device can be used for replacing the elastic ring flanged structure with aforementioned bellows one.Figure 11 adopts independent elastic ring flange 236, and this flange adopts frictional fit internally on the roughly cylindrical wall of lower house 326.Therefore, flange 364 is sealed on the inner surface as the roughly cylindrical wall of valve seat as valve member.Air can enter this container 322 by passage 337, as shown by arrows.
Figure 12 and 13 adopts taper elastomer 464 and 564 respectively, and they form from the neck or lower house 526 stretching, extensions of container 422 respectively.All comprise a flange 478 and 578 in each case respectively, be pressed in tension on container 422 and 522 to prevent lower house 426 and 526.In each case, the elastic component 464 and 564 of this general conical all is used as vent valve member, is sealed on the vent valve seat that is made of adjacent component, finally forms breather valve.When this pump installation 420 and 520 upward strokes, in response to pressure reduction, air walk around threaded portion 429 and 529 and vent valve member 464 and 564 and vent valve seat 426 and 522 between and can enter in container 422 and 522.
Figure 14 adopts packing ring 664 as breather valve, and this packing ring is a porous, so air can fluid product can not pass through by this packing ring 664.The material that is used for making this packing ring 664 all is that prior art is known.For example can adopt the polypropylene of sintering and the polyethylene of sintering (for example Porex).Therefore, when these pump installation 620 upward strokes, in response to pressure reduction, air can be walked around threaded portion 629 and enter in the container 622 by packing ring 664.
Although specific embodiments of the invention have been done diagram and explanation, under the situation of the teaching that does not break away from the present invention, can make various modifications.For example, the liquid distributing pump device can be plate machine formula sparger type or foaming type.Therefore, the present invention includes all interior embodiment of appended claim scope.

Claims (12)

1. one kind is used for liquid that pumping comes from supply container and discharges the manually operated dispensing pump device of this liquid by tap, and this device has:
(a) one installs to housing on this supply container hermetically with this dispensing pump device, and a fluid passage part that provides fluid to be communicated with from supply container downstream to outlet is provided this housing;
(b) inlet valve that is arranged in this fluid passage, this inlet valve are closed to prevent that liquid stream from passing through this valve and open this valve during negative downstream pressure during the positive downstream pressure;
(c) outlet valve that is arranged in this fluid passage, this outlet valve are opened to allow liquid to flow and are being closed this valve by this valve and during negative upstream pressure during the positive upstream pressure,
It is characterized in that this device also comprises:
(d) shipping seal that comprises two function element, this two function element cooperatively interacts, and seals this fluid passage in the closed position, and allows liquid stream by this fluid passage in the enable possition;
(e) collapsible pump chamber that constitutes inlet valve downstream and outlet valve liquid upstream channel part, this collapsible pump chamber comprise that of function element of shipping seal is as its integrated part.
2. manually operated dispensing pump device as claimed in claim 1, it is characterized in that: also comprise the lock-in feature relevant with this housing operation type, the actuating of this pump installation when preventing that this shipping seal is in the closed position, and allow the actuating of this pump installation when this shipping seal is in the enable possition.
3. manually operated dispensing pump device as claimed in claim 1 is characterized in that: the protruding handle of a demountable anti-abuse links to each other with upper shell or lower house operation type ground, to prevent the actuating of this pump installation before the protruding handle removal of this anti-abuse.
4. manually operated dispensing pump device as claimed in claim 1 is characterized in that: when in a single day this two function element turns to the enable possition at this upper shell relative to each other with this lower house, just cooperatively interacting allows liquid to flow through this fluid passage.
5. manually operated dispensing pump device as claimed in claim 4, it is characterized in that: this collapsible pump chamber also comprises an anti-rotating element, when between the opening and closing position, relatively rotating with respect to each other, prevent that this collapsible pump chamber from rotating relative to upper shell or lower house with convenient upper shell and lower house.
6. manually operated dispensing pump device as claimed in claim 4, it is characterized in that, also comprise the lock-in feature relevant with this housing operation type, prevent the actuating of this pump installation with convenient shipping seal when in the closed position, and allow the actuating of this pump installation when this shipping seal is in the enable possition.
7. manually operated dispensing pump device as claimed in claim 6 is characterized in that: also comprise the protruding handle of a demountable anti-abuse that links to each other with upper shell or lower house operation type, it can prevent the actuating of this pump installation before the protruding handle removal of this anti-abuse.
8. manually operated dispensing pump device as claimed in claim 7, it is characterized in that: this housing also comprise one with the locking protrusion that should the protruding handle of anti-abuse cooperates, thereby when removal should anti-ly not abused protruding handle from housing, prevent that upper shell from going to the enable possition from the closed position.
9. manually operated dispensing pump device as claimed in claim 4 is characterized in that: the function element of this outlet valve is the integrated part of collapsible pump chamber.
10. manually operated dispensing pump device as claimed in claim 9, it is characterized in that: the function element of outlet valve is outlet valve member and outlet valve seat, and the outlet valve seat is a monoblock type function element and outlet valve member is positioned at an elongated passageway, and this passage is the integrated part of collapsible pump chamber.
11. manually operated dispensing pump device as claimed in claim 9 is characterized in that: also comprise a breather valve, this breather valve comprises two function element, and of the function element of this breather valve is the integrated part of this collapsible pump chamber.
12. manually operated dispensing pump device as claimed in claim 1, it is characterized in that: this collapsible pump chamber also comprises a valve that comprises a valve member, a valve seat and a valve opening, they all are the integrated part of the wall of this collapsible pump chamber, this valve seat is facing to a side of this wall, and this valve member forms the opposite side that leaves this wall at a certain angle, so when this valve member was pushed away valve opening, this valve member was biased on the valve seat.
CN94192582A 1993-06-24 1994-04-18 Pump device with collapsible pump chamber having integral shipping seal Expired - Fee Related CN1071147C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US08/082,001 1993-06-24
US08/082,001 US5303867A (en) 1993-06-24 1993-06-24 Trigger operated fluid dispensing device
US20332194A 1994-02-28 1994-02-28
US08/203,321 1994-02-28

Publications (2)

Publication Number Publication Date
CN1125915A CN1125915A (en) 1996-07-03
CN1071147C true CN1071147C (en) 2001-09-19

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CN94192582A Expired - Fee Related CN1071147C (en) 1993-06-24 1994-04-18 Pump device with collapsible pump chamber having integral shipping seal
CN94192584A Expired - Fee Related CN1069232C (en) 1993-06-24 1994-04-18 Collapsible pump chamber having predetermined collapsing pattern

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Application Number Title Priority Date Filing Date
CN94192584A Expired - Fee Related CN1069232C (en) 1993-06-24 1994-04-18 Collapsible pump chamber having predetermined collapsing pattern

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EP (2) EP0705144B1 (en)
JP (2) JPH08511723A (en)
KR (2) KR960703354A (en)
CN (2) CN1071147C (en)
AT (1) ATE168594T1 (en)
AU (2) AU678463B2 (en)
BR (2) BR9406962A (en)
CA (2) CA2165314C (en)
DE (2) DE69420730T2 (en)
ES (2) ES2135586T3 (en)
MX (1) MXPA94002797A (en)
WO (2) WO1995000253A1 (en)

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EP0705144A1 (en) 1996-04-10
ES2135586T3 (en) 1999-11-01
KR960703353A (en) 1996-08-17
MXPA94002797A (en) 2002-06-18
CN1069232C (en) 2001-08-08
EP0705141B1 (en) 1998-07-22
WO1995001226A1 (en) 1995-01-12
JPH08511988A (en) 1996-12-17
KR960703354A (en) 1996-08-17
CN1125915A (en) 1996-07-03
DE69411919T2 (en) 1999-04-22
AU6559594A (en) 1995-01-17
EP0705144B1 (en) 1999-09-15
ES2118403T3 (en) 1998-09-16
DE69420730D1 (en) 1999-10-21
ATE168594T1 (en) 1998-08-15
EP0705141A1 (en) 1996-04-10
AU678463B2 (en) 1997-05-29
CN1125916A (en) 1996-07-03
BR9406962A (en) 1996-08-27
CA2165315C (en) 2000-10-24
DE69420730T2 (en) 2000-03-16
CA2165314A1 (en) 1995-01-12
JPH08511723A (en) 1996-12-10
WO1995000253A1 (en) 1995-01-05
BR9406972A (en) 1996-03-26
DE69411919D1 (en) 1998-08-27
AU7091794A (en) 1995-01-24
CA2165314C (en) 2000-11-28

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