CN103764895A

CN103764895A - Safety device against fluid leaks for household appliances

Info

Publication number: CN103764895A
Application number: CN201280028938.3A
Authority: CN
Inventors: L.比安奇; P.萨维尼
Original assignee: Eltek SpA
Current assignee: Eltek SpA
Priority date: 2011-04-15
Filing date: 2012-04-12
Publication date: 2014-04-30
Anticipated expiration: 2032-04-12
Also published as: RU2013150170A; ES2822624T3; CN103764895B; KR20140036184A; EP2697420A2; EP2697420B1; WO2012140595A3; WO2012140595A2; ITTO20110338A1; KR101947207B1; RU2582951C2

Abstract

A safety device against fluid leaks for household appliances, designed for connection between a source of a fluid and a household appliance, comprises: a first connection body (20) and a second connection body (13), which define a first duct (23) and a second duct for the fluid, respectively, a flexible inner hose (17) and a flexible outer hose (16) which are impermeable to the fluid. The inner hose (17) connects in fluid communication the first duct (23) and the second duct (93) and extends longitudinally within the outer hose (16), such that between at least a part of the two hoses (16, 17) a gap having a proximal end and a distal end is defined (18), the gap (18) being substantially closed at said ends for withholding therein possible leaking fluid, The device comprises first sealing means (40), operatively arranged between the outer hose (16) and the first connection body (20) and defining a connection passage (44-45) for connecting in fluid communication the gap (18) and a chamber (30) of the first connection body (20).

Description

The safety device for fluid leakage for home appliances

Technical field

The present invention relates to a kind of safety device for fluid leakage, anti-overflow safety device specifically, it is designed for being connected to fluid source and uses equipment of described fluid as between home appliances.

More specifically, the present invention is about comprising the described safety device of following type:

Be defined for respectively the first conduit of fluid and the first connector of the second conduit and the second connector;

Fluid-tight interior flexible hose and outer flexible hose,

Wherein inner flexible tube is connected with the second catheter fluid with the first conduit, and extend longitudinally in outer flexible tube, so that gap is limited between at least a portion of two flexible pipes, gap has near-end and far-end, and this gap is roughly come for any possible leak fluid is kept within it in described end closure.

Background technology

Safety device for the home appliances of the type mentioned is general known, and safety device is specifically for washing machine and dish-washing machine.Conventionally, in anti-overflow device of water, inner flexible tube is designed to water to be sent to home appliances from the connector in water service source, and outer flexible tube has prevent from leaking from inner flexible tube any and may may be dispersed in the function that causes spilling water domestic environment by water leakage.For this purpose, one that is below defined as in two connectors of " valve body " is equipped with valve gear, and it comprises valve element, the conduit in the closed body self of valve element detected leak in the situation that.

In the known solution of the first kind, the place, bottom (that is, at far-end) in home appliances is led in outer flexible tube and gap, and at this place, pallet is provided as for collecting any possible leaking.Sensor device is located in described pallet, sensor device (for example can be dynamo-electric type, or mechanical type (expansion based on anhydrous sponge, anhydrous sponge volume when contacting with liquid increases) buoyancy aid with microswitch associated with it).The type of tube sensor not, when this layout all makes the water in pallet being detected, sensor generates control signal (it according to circumstances can be the signal of telecommunication, pneumatic signal or mechanical signal), and this causes being located at the switching of the valve gear in valve body, and the conduit that therefore closure flows into for water.In this way, in the situation that for delivery of the inner flexible tube fault of water, any further inflow and the therefore risk of spilling water will be prevented.These safety devices have also proposed to leak not owing to the fault of inner flexible tube but owing to the advantage of situation lower cut-off water that is arranged on the fault of the different hydraulic component in home appliances.On the other hand, described device has presupposed a certain specific layout in advance of home appliances; Installing self must construct according to the structure of home appliances, because they must be connected on home appliances in roughly complementary mode.In addition, in fact, described device roughly comprises being connected to be gone up each other but is arranged on two unit of difference (valve body has two flexible pipes and the leak sensor assembly on opposite side in a side), makes these device relative complex and costlinesses, and has larger defect risk.First, when described signal is produced by mechanical component, actuate to control and come from the reason that can be critical situations away from the fact of the point of valve gear.

In addition, proposed the anti-overflow safety device of Second Type, it is similar to aforementioned safety device, but presuppose the specific of home appliances, does not arrange in advance.In the device of this Second Type, be limited to gap between inner flexible tube and outer flexible tube roughly two end closures, so that it can accumulate any possible the leaking that comes from inner flexible tube.Its operation of this type device is based on being used anhydrous sponge, and anhydrous sponge is operationally arranged on the position corresponding to the first connector, is communicated with interstitial fluid.Anhydrous sponge is connected on the holding position and the prevention parts between release of the valve element that is movably arranged on mechanical valve conventionally.When sponge is during in its anhydrous state, aforementioned prevention parts remain on valve element in the enable possition of conduit.In the situation that leaking, be collected in the liter waterborne in gap, until it contacts with sponge, cause that its volume increases, and therefore cause that prevention parts are towards the displacement of off-position, so that the valve element of valve can be closed for flow into the conduit of water under hydraulic pressure.For example, in No. 3,618,258 C, Deutsche Bundespatent DE that the anti-overflow safety device of this type is submitted to the applicant name, know, the preamble of claim 1 is based on this patent (in addition, described document description the safety device of the first kind mentioned above).

The device of the Second Type of mentioning is obviously more cheap than aforesaid device, and can with simple and fast mode be arranged on any home appliances, be not even provided for this object, and also buy subsequently home appliances self.

These devices need to leak and be collected in gap, then in gap, rise, until valve body.This solution has proposed the tight seal between the shell of outer flexible tube and valve body or the shell of upper connector.For this purpose, in fact, potted component must be located between the outer surface of outer flexible tube and the corresponding path of shell; For this potted component is remained on to appropriate location, applicable location and/or immobilising device must be provided, it is configured to attachment members or with single-piece, obtains together with shell, thereby makes the manufacture of device more complicated, and has increased its size.

For example, in order to check the integrality of the sealing in outer flexible tube or gap, only at device, almost assembled the test that Shi Caike carries out these devices completely, and this situation makes in order to correct fault the possible intervention to product more complicated.

Summary of the invention

The object of the invention is to solve the aforementioned disadvantages of known technology, and provide a kind of safety device for fluid leakage, the anti-overflow safety device of the Second Type of specifically mentioning, it will be for simple and be economically advantageous to production, and in operation accurately and reliable.

Additional object of the present invention is to obtain a kind of device of the type of pointing out, its structure is flexible especially, and it can be used for producing the device with different operating feature.Another auxiliary object of the present invention is to obtain a kind of device of pointing out type, and it can easily be tested, and particularly during it manufactures the intermediate steps of circulation, can easily test.

One or more objects in above-indicated object realize by having the safety device of the feature of appointment in claim 1 according to the present invention.Preferred feature is specified in the dependent claims.Claim forms the part of instructing content herein about technology provided by the invention.

In brief, according to the present invention, as the safety device that starts description comprises the first air locking, it is operationally arranged between outer flexible tube and the first connector, and is defined for the connecting path that gap is connected with the fluid of the chamber (specifically control room or actuation chamber) of the first connector.

In this way, gap can be roughly closed at its near-end or upper end, under any circumstance all leave the path in relatively limited cross section, so that leak easily by and until chamber, described chamber is the part that the fluid that makes to flow into towards user's utensil can stop and/or making it possible to the device of visual detection abnormal conditions.

As preferably, the first air locking cited above makes it possible to obtain at least triple hydraulic sealing, for example, and with respect to the first sealing of outer flexible tube, with respect to the second sealing of valve body, and with respect to the 3rd sealing of the entrance in control room mentioned above.

The total structure of device has been simplified in the use of the air locking of setting like this.In addition, be applicable to use in dissimilar safety device to the well-formed of these air lockings, this will be clear hereinafter.

In a preferred embodiment, aforementioned air locking comprises the seal member of at least one general toroidal, and it is engaged in a part for connector, and the proximal part of outer flexible tube is engaged on seal member again then here.Therefore, in this example, the first sealing mentioned above obtains by excircle or the outline of annular element, and the second sealing obtains by profile in it or inner periphery.The 3rd sealing mentioned above is limited by the circumference profile of connecting path.

Air locking mentioned above is preferably by mouldable elastomeric material and makes, as, elastomer, rubber or silicones.Only for instance, spendable material be thermoplastic elastomer (TPE) TPE or TPV (for example, with trade name Forprene or Santoprene and know those), EPDM rubber, NBR rubber, SBR rubber, FP rubber (for example, those that know with trade name Vtion, Fluorel, Technoflon) or chloroprene rubber (those that for example, known by trade name Neoprene, Baypren, Butaclor).

As preferably, the first connector limits subsidiary conduit, and subsidiary conduit leads to control room, and the outlet of the aforementioned connecting path of gap and/or air locking is coupled on control room in fluid-tight mode, and the entrance of connecting path leads to again gap then.In one embodiment, seal member have for connect and/or be fixed to the conduit that is connected on control room mentioned above (as, aforementioned subsidiary conduit) device on, wherein particularly, connecting path is communicated with or is associated with described coupling device and/or immobilising device with described coupling device and/or immobilising device.As preferably, the opening that runs through that aforementioned connecting path is parallel to seal member extends, and seal member is taken in a part for connector hermetically, and described part comprises at least one the corresponding extending part axially extending for the corresponding conduit of fluid.

As below, by more clearly manifesting, air locking is provided, and provides aforementioned ring sealing part with optimal way, and the aforementioned subsidiary conduit being limited by connector is provided, if desired, make device operate not having completely in chlamydate situation.This produces device at device, especially at test period, demonstrates particularly useful.As already mentioned above, according in the solution of known technology, safety device is typically provided with additional shell, this shell must be arranged on valve body hermetically, and any leaking is sent in this shell: in these known devices, here must both between additional shell and valve body, provide hydraulic seal, between outer flexible tube and shell, provide hydraulic seal again.

Accordingly, in a preferred embodiment, the air locking being arranged between outer flexible tube and the first connector also comprises assist openings, and assist openings is communicated with interstitial fluid, and is stopped by corresponding closure member.

In one embodiment, this device has housing, encirclement the first connector that housing is at least part of.As preferably, when described shell exists, its at least a portion is configured for connecting with the outer surface of outer flexible tube.As below, by clearly manifesting, according to the outer flexible tube using in device of the present invention, being preferably corrugated flexible hose, that is, is the flexible pipe with the cylindrical wall that limits a succession of peak portion and paddy portion substantially.Therefore, housing can envision outstanding forming portion in its relative part, and it is designed to show greatly form fit and engages with the ripple of outer flexible tube.In this way, outer flexible tube is mechanically held in place with respect to shell.

In one embodiment, when conception, shell can consist of two parts, and two parts are connected on valve body in separable mode.For this purpose, in a preferred embodiment, two aforementioned parts consist of two and half shells substantially, and half shell is made by single-piece and the hinge fraction by elastically deformable is attached to each other and goes up.In this way, two and half shells are can be on the first connector and on outer flexible tube closed, and engage each other in mode simply and fast.

In one embodiment, the first connector limits the first base axially extending, and the bar of valve member is slidably mounted in this base, and the second base axially extending, control assembly is slidably mounted in this base, and wherein two bases are vertical and intersect.In described embodiment, the first base comprises open-ended, the open-ended outside of leading to the first connector on the position with respect to valve member roughly.

Utilize this structure, by utilizing the existence of aforementioned opening, the likely also operation of recovery device after triggering release mechanism, or make the valve member of valve gear get back to the position that it opens the conduit of the first connector, this will be described below.

Accompanying drawing explanation

Other objects, features and advantages of the present invention will clearly manifest the following detailed description from reference to accompanying drawing, and accompanying drawing only provides by the mode of illustrative rather than restrictive example, and in the accompanying drawings:

Fig. 1 and Fig. 2 are the perspective view of the different angles of anti-overflow safety device according to an embodiment of the invention;

Fig. 3 and Fig. 4 are the perspective view of the first connector of the device in Fig. 1 and Fig. 2 or the different angles of valve body;

Fig. 5 and Fig. 6 are rear elevational view and the top plan view of the body of Fig. 3 and Fig. 4;

Fig. 7, Fig. 8, Fig. 9 and Figure 10 are respectively the perspective view, side elevation view, top plan view of the seal member of the device in Fig. 1 and Fig. 2 and from the plan view of below;

Figure 11 is the perspective view with aforementioned first connector of aforementioned seal member mounted thereto;

Figure 12 is the perspective view of housing of the device of Fig. 1 and Fig. 2;

Figure 13 and Figure 14 are two decomposition views of first of the device of Fig. 1 and Fig. 2;

Figure 15 is the decomposition view of second portion of the device of Fig. 1 and Fig. 2;

Figure 16 is Figure 13 in part assembled state and the view of the aforementioned first in Figure 14;

Figure 17 is the such view that is similar to Figure 16, but has some elements of the first connector and partly segmentation associated with it;

Figure 18 is the cross sectional view of the aforementioned second portion in Figure 15;

Figure 19-20, Figure 20-21, Figure 22-23 and Figure 25 show after triggering release mechanism for recovering the possible program according to the operation of device of the present invention by diagrammatic cross-sectional view with the corresponding details of larger proportion;

Figure 26 is the partial cross section's perspective view according to a part for the safety device of preferred version of the present invention;

Figure 27 is the diagrammatic cross-sectional view of the device in Figure 26;

Figure 28 be in Figure 27 by the details of magnification ratio; And

Figure 29 is the view that is similar to the view of Figure 13, but about the second embodiment of the present invention.

The specific embodiment

" embodiment " mentioning in the framework of this description or " embodiment " are intended to point out that specific structure, structure or the feature about embodiment, described comprise at least one embodiment.The phrase that therefore, can be present in the difference of this description needn't allly all represent same embodiment as " in an embodiment " or " in one embodiment " etc.In addition, details, structure, structure or feature can combine in one or more embodiments in any suitable manner, even different from the embodiment enumerating.The mark hereinafter using only provides for convenience, and does not limit protection domain or the scope of embodiment.

It should be noted, in this description subsequently and claims, for simply by only mentioning fluid or water, for example owing to the fault of inner flexible tube, the inner flexible tube from device leaks, yet comprising fluid in the other parts that are present in device or water even, this does not have situation that the fault of inner flexible tube leaks (for example, due to the surrender of corresponding air locking, the water between inner flexible tube and valve body or the second connector leaks).

In Fig. 1 and Fig. 2, whole by 1 expression according to the safety device for fluid leakage (specifically anti-overflow device of water) of a possibility embodiment of the present invention.As described in the introductory section of this description, device 1 is for establishing gapped type, gap is also closed at far-end or bottom place, and does not therefore presuppose and be located at any specific on home appliances and arrange for carrying out the object of security function in advance.

Device 1 consists essentially of two

end sections

2 and 3 and mid portion 4.Hereinafter, supposed upper end part 2 be designed for the source of fluid self (for example, as water service source (not presenting)) applicable supply centre fluid or hydraulic connecting and mechanical connection, and bottom part 3 is designed for and home appliances (as, home appliances (also not presenting)) fluid or hydraulic connecting and mechanical connection.Yet, it should be pointed out that jockey can be contrary, that is, wherein part 2 is connected on home appliances, and part 3 is connected on fluid source.

Top part 2 comprises below the first connector 20 that is defined as for the sake of simplicity " valve body ", pneumatic operation or hydraulically operated valve gear are associated with the first connector 20, air locking described below, for be connected to the first interface unit 11 on water service source (as, collar nut), and at least in part surround the housing 12 of valve body 20.Bottom part 3 comprise the second connector 13 associated with it, for be connected to the second corresponding interface unit 14 on home appliances (as, collar nut), and for fixing and be sealed to some other members on mid portion 4, this will be described below, and is preferably and comprises sleeve pipe or grommet 15.Mid portion 4 consists of inner flexible tube (invisible in chart 1 and Fig. 2) and outer flexible tube 16 substantially, as, the flexible pipe of being made by thermoplastic.Shown in non-limiting example in, outer flexible tube 16 is for corrugated flexible hose or have the flexible pipe of the wall of fluctuating, or has the wall of the substantial cylindrical that limits staggered peak portion and paddy portion (be preferably annular and/or be parallel to each other and/or according to rule series arrange); On the other hand, the wall of outer flexible tube 16 can have continuous paddy portion and the peak portion of extending with scroll, or is designed for other shape of this object.In example as herein described, below by the inner flexible tube of 17 expressions (for example, see Figure 16 and Figure 17) be preferably the cylindrical flexible pipe with smooth surface, as, the flexible pipe of being made by thermoplastic or elastomeric material, but described conception should not be construed as restriction by any way, because inner flexible tube 17 also can be ripple type, the shape for example, with the type of describing for outer flexible tube 16.As preferably, the maximum outside diameter of inner flexible tube 17 is less than the minimum diameter of outer flexible tube 16 in one way, makes to exist between them the annular gap limiting, for example, and its 18 representing in Figure 16 and Figure 17.Gap 18 is designed to allow leak fluid to pass between outer flexible tube 16 and inner flexible tube 17, is preferably along the axial direction with respect to two flexible pipes, specifically towards valve body 20.

In Fig. 3-6, with different views, show aforementioned valve body 20, valve body 20 comprises and is preferably the body of being made by injection molded thermoplastic material, wherein substantially identify two generally

tubular parts

21 and 22, for simplicity, it is defined as respectively intake section and exit portion, in this example, intake section and exit portion are orthogonal to each other.Two

parts

21 and 22 corresponding part or the extending part 23a that comprise for the main pipe 23 of fluid, 23b, and be connected to each other and go up at intermediate body member part 24 places, two aforementioned extending parts of conduit are in the interior intersection of intermediate body member part 24.Part 21 limits the entrance 25 that is formed near the valve body 20 of at least one flange; Shown in example in two forming portions with outer annular flanges 26 are provided, it is for the collar nut 11 of assembly drawing 1 in a known way.In addition, in the embodiment enumerating, the outer surface of intake section 21 comprises towards the tapered part of mid portion 24 or extending part 27a, and it provides a kind of base 27 together with another flange forming portion 27b, this base 27 is arranged to cooperate with housing 12, and this will manifest hereinafter.

The exit portion 22 that limits the outlet 28 of valve body 20 has a series of axial projection 29 in district at an upper portion thereof, the object that it is strengthened for body 20, and/or may be for locating the object of air locking hereinafter described.

The columniform lower region substantially of exit portion 22 has connection element 22a on outside, as, a series of annular fixing teeth or projection, its inlet region for the inner flexible tube 17 with device connects.The sealing area of part 22 is preferably and has circular cross-section before being limited to the described lower region and described lower end of projection 29, and the 22b in Fig. 3 and Fig. 6 represents.

In the mid portion 24 of valve body 20, and specifically region (as seen in figure) at an upper portion thereof, exist by the roughly cup-shaped sensing chamber of 30 expressions or the qualifying part in control room.Upper end in described chamber 30, valve body 20 is shaped to and limits annular base 31, and it is designed at least take in the periphery of moving element (element being specifically resiliently deformable, as diaphragm) hereinafter described.Engaging base 32 provides along the outer rim that limits the forming portion of base 31, and base 32 is designed to connect with hook or the tooth of the lid of also describing hereinafter.

In the center substantially of chamber 30, the base 33 axially extending is provided as the prevention parts for hereinafter described.Described base 33 is preferably in the inner side of the exit portion 22 of valve body 20 with it and along the axial direction of the extending part 23b of main pipe 23, extends coaxially.What from Fig. 4, can note is how larger body part by 34 expressions extends in the corresponding extending part 23a of part 21 and conduit 23, as will be described, the sliding bottom 35 for the bar of opened/closed parts or valve member is defined in body part.As previously mentioned, two extending part 23a of the conduit 23 extending in

part

21 and 22,23b is intersected with each other at body part 24 places.Suppose and in intersection region, have forming portion 34, the extending part of the conduit of intake section 21 inner sides is shaped as and is similar to semi-ring, and this for example can recognize in Figure 17.

Here from Fig. 6, can notice in the mid portion 24 of valve body 20 in position relative with intake section 21 or that face substantially how hole or path 36 are provided: described hole roughly provides the prolongation of the base 35 of valve member, for below by the function of explaination.

Here from Fig. 6, can notice equally it is how attachment or connector 37 are provided in mid portion 24, its along the direction that is parallel to substantially the exit portion 22 of valve body 20 axially extend (as, also can be seen in fig. 3).In described connector 37, axial passageway 38 (visible in Fig. 5) is extended at this, and axial passageway 38 is led to the inner side of chamber 30.

According to the present invention, air locking is operationally arranged between outer flexible tube 16 and valve body 20.More specifically, and as hereinafter will more clearly manifested, these devices provide the sealing between the outer surface 22b surperficial and the specifically exit portion 22 of valve body 20 of valve body 20 and at least one inner surface surperficial and specifically outer flexible tube 16 of outer flexible tube 16.

In the embodiment enumerating in Fig. 7-10, aforementioned air locking comprises the seal member with overall annular or tubular in shape by 40 expressions, it is hereinafter for easy and be defined as " packing ring ", and described body is made by elastic buckling material (being preferably elastomer).Packing ring 40 comprises at least a portion or surface and at least a portion or the surface for connecting and/or seal with respect to outer flexible tube 16 for connecting with respect to valve body 20 and/or sealing.

Again, referring to figure, in packing ring 40, identify top part 41, mid portion 42 and bottom part 43.Tubular portion 44 rises from top part 41, and the chamber of tubular portion 44 moves forward in the body of packing ring 40, and to form connecting path 45, connecting path 45 roughly leads to bottom part 43 places.Connecting path 45 is preferably at least two extending parts that have with different sections, as, thering is the first extending part of circular section, this can be clear that in Fig. 9, and with the second extending part of taper or convergence section, this can be clear that in Fig. 7 and Figure 10.As preferably, aforementioned the first extending part is located in top part 41 at least in part, and specifically at least a portion of tubular portion 44, and aforementioned the second extending part is produced in bottom part 43 at least in part.

As in situation about enumerating, tubular portion 44 can be radially outstanding from the main outline of top part 41, this shows for the object connecting with connector 37 useful.Again, as preferably, the diameter of the body of packing ring 40 or periphery size reduce towards bottom part 43 from top part 41 substantially, and this is specifically convenient to connecting for sealing purpose between valve body 20 and outer flexible tube 16.

As specifically there is the base of bifurcated above part 41 from recognizing Fig. 9, the form of axial notch or recess 46 specifically, it limits the center channel 40a around packing ring 40, and may extend compared with short stretching, extension and also enter in mid portion 42.As preferred but dispensable, these grooves have asymmetric layout and/or irregular shape.Packing ring 40 is designed to be coupled to the exit portion 22 of valve body 20 of Fig. 3-6 from below, and wherein recess 46 is preferably the axial projection 29 of taking in the aforementioned part 22 of valve body 20 with elasticity interference, also for guaranteeing the object of the precise relative positioning between part.In addition, for example, as can be clear that in Figure 11, in the installment state of packing ring 40, the connector 37 of valve body 20 is engaged in the tubular portion 44 of packing ring hermetically.For the object of the elastic packing between part, the first extending part of connecting path 45 has the cross section of the outer cross section that is less than connector 37.

So far return to Fig. 7-10, the body of packing ring 40 is preferably therebetween has certain shape and size in part 42, to determine the sealed attachment with respect to outer flexible tube, as, be designed to provide the outer surface ripple with the ripple resilient connection of outer flexible tube 16.Certainly, because the body of packing ring 40 is made by elastomeric material, therefore the peak portion of the ripple of mid portion 42 and paddy portion can be greater than the ripple of outer flexible tube 16 slightly, or have larger size or diameter, or be greater than its internal diameter.

In one embodiment, the body of packing ring 40 is preferably has shape and the size of portion partly or in center channel 40a within it, to determine that the sealed elastic with respect to valve body 20 connects, as, diameter or size are less than diameter or the size of surperficial 22b of the exit portion 22 of valve body 20.

Under any circumstance, this layout all makes after packing ring 40 is assembled on valve body 20, the proximal part of outer flexible tube 16 can be interference fit in a part for packing ring 40 with elasticity, specifically, on the mid portion 42 of packing ring self, to roughly obtain between part, shape connects or complementary connection.

Referring specifically to Fig. 8, can notice how assist openings 47 provides in the outer peripheral face of the top of packing ring 40 part 41, assist openings 47 forms the entrance of auxiliary channel 48, and this path also leads to the part 42 district, bottom corresponding to packing ring 40, and this can be clear that in Figure 10.Described assist openings 47 is preferably has conical by its shape, and therefore wider than the cross section of conduit 48 at least one extending part.

Can notice, the bottom part 43 of packing ring 40 is in use in the face of being limited in the outer flexible tube 16 and the gap 18 between inner flexible tube of safety device, and this can describe hereinafter.As hereinafter, by more clearly manifesting, the assist openings 47 with corresponding auxiliary channel 48 is at production phase testing arrangement 1.

As said, in use, packing ring 40 is coupled in the exit portion 22 of valve body 20, and slide thereon, until obtain and engage between axial projection 29 (Fig. 3) and recess 46 (Fig. 9), and the base section of the sealing area 22b of valve body 20 and the path 40a of packing ring 40 engages.Aforementioned areas 22b and have certain profile for the corresponding part of seal path 40a, it is at least circular, or is under any circumstance all preferably and there is no projection and groove, to guarantee best radial seal.After described assembling, can from Figure 11, see, the bottom of the connector 37 of the mid portion 24 of valve body 20 is engaged in the tubular portion 44 of packing ring 40.

In this way, as can be appreciated that, the inner side in control room 30 is communicated with path 45 fluids of packing ring 40 (seeing Fig. 7 or Fig. 9) via the path 38 in Fig. 5, and so is communicated with the interstitial fluid between two flexible pipes.According to the modification not presenting, connector 37 and path 38 can cross the path 45 of packing ring 40 completely until gap, and connector 37 and path 38 be suitably setting for this purpose.

From Figure 11, can notice equally, at packing ring, install 40 on valve body 20 in the situation that, how assist openings 47 is directly in the face of outside, or radially with respect to the axis setting of axis or the valve body 20 of packing ring 40.

In Figure 12, illustrate in greater detail housing 12, be below for simplicity defined as " shell ", it is designed to valve body 20 and packing ring 40 to be encapsulated in its inner side together with the part being associated of outer flexible tube 16.Shell 12 is preferably by thermoplastic or for flexible material, makes at least partly.

In the embodiment enumerating, shell 12 is configured to single-piece, and by providing the mid portion 52 of elastic hinge to be attached to go up each other two

half shells

50 and 51 of spill are substantially provided for it.Can notice, in possible variant embodiment, shell 12 can be made by the two or more parts that are different from each other, then for example by corresponding hook or screw, or is fixed by welding.

There is edge limited along half shell 50,51 relative with hinge fraction 52 of two the first bases of semi-circular profile roughly or recess 53; Equally, two the second bases or the recess 54 that also have a semi-circular profile are roughly limited in the base section of each half shell 50,51.In this way, after one and half shells being closed on another in housing 12, there are two circular paths that limit, one and of bottom of side direction, the axle line of two paths is roughly orthogonal to each other.At side direction recess 53 places, the profile at the edge of half shell is shaped to and limits semi-cylindrical hill or tooth 55.In the assembled state of device 1, two teeth 55 connect with the base 27 in Fig. 3 (also seeing Figure 17), to guarantee that shell 12 is with respect to the location of the firm and centering of the intake section 21 of valve body 20 (being preferably due to the interaction between the inclined-plane of the tapering part restriction of the inclined-plane being limited by tooth 55 and the base in Fig. 3 27).Tooth 55 may be with the sealing means operation with respect to valve body 20 and/or base 27; If need, can further provide potted component (not presenting) here between side direction recess 53 and valve body 20.The edge of half shell 50,51 that limits lower notch 54 is tapered substantially, to obtain at least one semi-cylindrical hill 56, it is designed to engage a paddy portion of the ripple of outer flexible tube 16.Similarly projection 56 inner faces from half shell 50,51 raise, and projection 56 is designed to engage with other paddy portion of the ripple of flexible pipe 16.In this way, in assembled state, valve body 20 is seen and is accurately connected to outer flexible tube 16 from mechanical viewpoint.Projection 56 may also operate and (for example, protruding 56 can be on outer flexible tube 16 rigidity and that be compressed on hermetically elastic buckling in the mode with respect to outer flexible tube 16 sealings; Here between projection 56 and flexible pipe 16, may be provided with other potted component not presenting).

In the top section of

half shell

50,51, two semi-circular indentation 57 are limited in corresponding edge, and it is provided for the inspection window of object described below.As preferably, described window also comprises transparent closure member or the inspection opening by 58 expressions.

In variant embodiment (not shown), another potted component can be associated with single-piece or by single-piece, be made together with half shell 50 and/or 51, concrete to limit with respect at least one at least one mutual seal and/or the seal in valve body 20, outer flexible tube 16 and element 58.

Again referring to Figure 12, also in the inner side part of

half shell

50 and 51, except other the possible projection that is designed to cooperate with the outer surface of valve body 20, the projection 59 of extending is vertically provided here, it is preferably cylindrical, and it has formed the closure member of the assist openings 47 of packing ring 40 (Fig. 9).In the assembled state of housing 12, that is, wherein two and

half shells

50,51 are being gone up closedly each other, and packing ring 40 valve body 20 mounted thereto is arranged between them, and projection 59 is penetrated in assist openings 47 with elasticity interference, stops corresponding path 48.In a modification, the function of projection 59 is carried out by different closure members, closure member is different from shell 12, but (be for example under any circumstance all designed to closed assist openings 47, as, in pressure mode, insert the ball in opening 47, its split shed 47 is preferably shaped to ball is remained on to appropriate location, and determines corresponding hydraulic packing, pneumostop and mechanical seal).

In one in two and half shells, in the example of half shell 50, provide the second projection or pillar 60, it is designed to be engaged in the corresponding base 61 on the relevant position of being located at another half shell (being half shell 51) here.One (being preferably half shell with base 61) in two and half shells has a plurality of hooks 62 along its edge, is shaped to here and is similar to Elastic Teeth, and it is designed to be bonded in the corresponding base 63 in the relevant position of being located at another half shell.

The part assembled state of the top part 2 of installing 1 has been shown in Figure 16, and its housing 12 is opened.Can notice between the projection 56 of half shell 51 of shell 12 and the ripple of outer flexible tube 16 and have interference, and packing ring 40 is with respect to the location of outer flexible tube 16 self, that is, wherein corresponding mid portion 42 and bottom part 43 are in the proximal end region of flexible pipe.From described Figure 16, can notice equally that how assist openings 47 is in a position, to close at while going up each other and stopped by projection 59 at two and half shells.

Figure 13 and Figure 14 show the member being associated with valve body 20 with decomposition view.In described figure, by 11 expressions already mentioned collar nut above, it has internal thread, and internal thread has formed body 20 and the fluid source mechanical connection in supply centre and the interface of hydraulic connecting of (as, water service source).As the said sample of saying, described collar nut 11 is type as known in the art, as for anchoring to its form on valve body 20.

Filter element is by 70 expressions, and filter element is designed to obtain the filtration of the fluid in access to plant 1.In addition, described parts are the known type in this area self.Member by 71 expressions is diffuser parts, and it is designed to fluid to be directed in device 1.Described parts are also known substantially type, but are suitable for here cooperating with the bar of valve member of a part that forms the valve gear of device 1.Likely, flow conditioner can be located at upstream or the downstream of diffuser 71 here, and flow conditioner is for example for having the type of deformable diaphragm under the pressure of the water flowing into.Aforementioned valve member is generally by 72 expressions, and substantially the bar 73 extending vertically, consists of, and valve member 74 is established therebetween in region, defines the annular base 75 of the sealing ring 76 in intermediate portion.As by manifesting hereinafter, under assembled state, partial insertion along the direction of diffuser 71 from the outstanding bar 73 of element 74 and may sliding among the axial base 71a of diffuser self, in addition, spring 77 is also accommodated in wherein, spring 77 provides for accumulating the device of mechanical energy, and it is designed to constantly promote valve member 72 towards corresponding closing position.

By 78 expressions be the guiding sleeve for bar 73, and by 79 expressions be two sealing rings of O shape lopps type, its base 35 that is designed to provide Fig. 4 sealing mutually and between aforementioned rod.

Generally by 80 expressions be moving element, in the example shown in it, by diaphragm, formed, diaphragm is can be flexibly crooked, has roughly disc-like shape, and has periphery 81 and centre bore 82.Sealed attachment in the base 31 providing in Fig. 3 is provided at edge 81, and it holds the oral area of control room 30 (also seeing Figure 17).

Device comprises to be controlled or fixing device, and it is designed to valve member 72 to remain on corresponding enable possition, and can be actuated to adopt the corresponding off-position of valve member self.For this purpose, in the example presenting, whole is control or the fixing parts for valve member 72 by 83 expressions, as, the prevention parts that extend vertically, it comprises the top part 84 with star section here, and longer cylindrical lower portion part 85, flange portion 86 is therebetween.For corresponding potted component 88, specifically the annular groove 87 of O shape ring is limited in bottom part 85.In assembled state, stop parts 83 in interference mode and/or with sealing means, insert in one way in the centre bore 82 of diaphragm 80, its cylindrical lower portion part 85 that comprises potted component 88 is inserted again then, and may for example, in the valve seat 33 at Shi30Zhong center that is defined in valve body 20 (, seeing Fig. 3, Fig. 6 and Figure 17), slide.

Retaining element or lid are by 89 expressions, and it is designed to be connected in the top part of valve body 20.Lid 89 is substantially cheese, has the center channel 90 of the axially movable guiding that is provided for stoping parts 83.Soldered tooth 91 provides along the periphery of lid 89, and soldered tooth 91 is designed to connect (seeing Fig. 3 and Fig. 6) with the corresponding joint base 32 being limited in the top part of valve body 20.In assembled state, as covered 89 and therefore the periphery of diaphragm 80 81 be remained in corresponding base 31 from notice Figure 17, wherein diaphragm self is arranged between valve body 20 and lid, is preferably under the state of periphery 81 compressions and/or sealing.The top part 84 of prevention parts 83 changes on by 30 outsides, control room and giving prominence to, and inserts and provides in the path 90 of the lid 89 of its guiding.

The fact that the top part 84 of parts 83 is inserted in guiding piece 90 and in bottom cylindrical part 85 inserted bases 33 of parts self has retrained parts self execution Linear-moving, and the indirect guiding for flexible sheet 80 bendings is also provided.

From Figure 17, also can notice, in assembled state, the top section 84 of parts 83 and specifically above it in the face of the window 57-58 of shell 12.At least a portion of this top part 84 has applicable color, is preferably and is different from shell 12, with the visual alert system of the state of generator 1.

Again in Figure 13 and Figure 14, by 92 expressions be fixing or Sealed casing pipe, it is designed to the near-end of the inner flexible tube of device 17 mechanically to grasp in the band tooth end portion of exit portion 22 of valve body 20, for example, this can see in Figure 17.Yet, the fixed sleeving 92 of considering to be conventionally provided for the inner flexible tube 17 of the aforementioned smooth type made by elastomer can be substituted by another retaining element and/or seal, as, be coated for example, the potted component of being made by elastomer on the inner flexible tube (corrugated flexible hose that, thermoplastic or metal material are made) that is molded in some other types.

Figure 15 partly show outer flexible tube 16 and inner flexible tube 17 both.Material for the production of

flexible pipe

16 and 17 can be type as known in the art, and for example, PP is for outer flexible tube 16, and PVC or PP are for inner flexible tube 17.

In Figure 15, already mentioned the second connector is by 13 expressions, and it is substantially L shaped, and conduit 93 is limited within it, and conduit 93 has entrance and unshowned outlet.

Connector 13 compared with a part for big-length in be identified in the mid portion 95 that there is the first 94 of a series of annular fixing teeth or projection on outside and be provided with external waviness.Here the distal area of inner flexible tube 17 or lower petiolarea will be engaged in part 94, and inner flexible tube is then mechanically in position by means of ring or fixed sleeving or Sealed casing pipe 96, this be similar to before in Figure 13 and Figure 14 by the sleeve pipe of 92 expressions.Also can notice, for connector 13, can be provided for the device that connects with respect to inner flexible tube 17 here, it is similar to or is equal to the device of describing above with reference to valve body 20.

Here the potted component by another elastic buckling of 98 expressions is engaged on mid portion 95, and sealing element is roughly shaped to and is similar to sleeve pipe, and is preferably and has at least one inner ripple, and inner ripple is designed to connect with the ripple of the outer surface of part 95.Then, the end extending part of outer flexible tube 16 is engaged on potted component 98 here, so that the sealing with respect to its inner surface to be provided, and the gap between closed two flexible pipes in place, bottom; As also from manifesting Figure 18, then, potted component 98 is operationally arranged between the body and outer flexible tube 16 of connector 13.

Then, provide here also for outer flexible tube 16 being mechanically blocked in to the device of appropriate location.For this purpose, two semi-circular bases are limited to the lower end of the mid portion 95 of body 13, and one of them represents by 95a, and retaining component 99 will be connected in base.Each retaining component 99 all has the base portion part that shape is similar to semi-ring, and the contact pin 101 of rising and carrying soldered tooth 102 orthogonally from base portion 100.For the object of assembling, the semi-ring 100 of corresponding element 99 is connected in each base 95a, so that contact pin 101 is oriented upwards, and is arranged in the region that diameter is relative against outer flexible tube 16.Contact pin 101 has projection or ripple 103 at it in the face of in the part of flexible pipe 16, and it mates with the paddy portion of the ripple of flexible pipe 16, and mutual fixing is specifically provided.Next, that on outer flexible tube 16, slides stops sleeve pipe 15 down sliding in contact pin 101 before, until the tooth 102 of contact pin 101 is bonded in the corresponding base 105 of being located in sleeve pipe 15.In this way, consider that sleeve pipe 15 is held in place retaining component 99 with respect to connector 13 with respect to outer flexible tube 16, outer flexible tube 16 is also mechanically blocked with respect to the body of lower connector 13.

At its outlet end place, body 13 has flange 106, and in use, flange 106 is arranged to against faced washer 107, by the collar nut 14 being engaged in before on connector 13, is held in place.The layout of collar nut 14 and sealing ring 107, and the corresponding form connecting with the body of connector 13 is type as known in the art.

The state of the essential part of assembling safety device 1 has been shown in Figure 17 and Figure 18.In described figure, except the element having illustrated, can be clear that the gap 18 being limited between

flexible pipe

16 and 17 here above.In the embodiment enumerating, gap 18 has general toroidal shape as said, although or limit (external diameter of supposition flexible pipe 17 is preferably the internal diameter that is less than flexible pipe 16) by the minimum range between inner flexible tube 17 and outer flexible tube 16.

Figure 17 shows the state of the normal operating of device 1, and the water (or other fluid) that wherein collar nut 11 fills the porch that is affixed to the screw thread hydraulic pressure attachment on it may penetrate in the extending part 23a of conduit, through filter 70 and diffuser 71.In said case, flexible sheet 80 under corresponding non-operating state, wherein stop parts 83 in substantially below position.In described position, the inner of the bar 73 of valve member 72 is resisted against and stops on parts 83.In this way, valve member 72 and specifically its element 74 remain on the position of conduit 23 unlatchings, the effect of the spring 77 in resistance Figure 13 and Figure 14 (invisible in Figure 17).

Then, in fact, the element 74 of valve member keeps the corresponding valve seat limiting in the surface of the extending part 23a of conduit to have.Then, in described state, fluid can pass the extending part 23a of conduit, and then enters in the extending part 23b of conduit, and it passes the exit portion of valve body 20 vertically, to enter in inner flexible tube 17.At the far-end of inner flexible tube 17, then fluid penetrates in the inner conduit 93 in bottom linker 13, to arrive home appliances.

For example, the in the situation that the fluid in device inner side leaking from inner flexible tube after inner flexible tube fault, exist water to enter the path in gap 18.As explained above, by gap 18, by the path 44-45 of packing

ring

40 and 48 and the space that limited by control room 30 volume (considering below with reference to the content described in Figure 26-28) that is roughly sealing with corresponding path 37-38, it is designed to transmit and hold leak fluid, and at least leak and the triggering of valve gear between in time in the past without any fluid separating device.In use, the path 48 of packing ring is stopped by the projection 59 of housing 12; Therefore, be penetrated into leaking in gap 18 and make to cause that the pressure in aforementioned volume increases.

Such increase of pressure 30 interior transmission in control room via the path 44-45 of packing ring 40 and the corresponding conduit 37-38 of valve body 20.Pressure increase in described chamber 30 causes diaphragm 80 upwards elastic bendings, and the prevention parts 83 that therefore raise.The described rising of parts 83 has the effect of the bar 73 of relief valve parts 72, and then this enter the state of main pipe closure under the effect of corresponding spring 77, and the extending part 23a of conduit specifically.In this way, prevented from installing in 1 and therefore towards any further inflow of the water of home appliances.As preferably, mechanism makes to have guaranteed safety or stable operation, that is, valve member is actuated closing position, and it is irrecoverable or automatically change, for example, and due to reducing of the fluid pressure in gap 18 and/or in control room 30.

Suppose diaphragm 80 and therefore stop parts 83 to raise, the top part 84 of the prevention parts 83 that guided by the path 90 that covers 89 arrives or at least approaches the window 57-58 in the end face that is limited to shell 12; As already mentioned above, the color of the top part 84 of parts 83 is preferably the color that is different from shell 12, so that the change position of parts 83 is more easily seen via window 57-58 from shell outside.In this way, user can detect actuating of safety device 1, or it triggers the inflow of interrupting towards the water of home appliances.

As already mentioned, under some installment state, for example, device approximate horizontal install or vertically install in the situation that, and valve body 20 in lower position or be connected on home appliances and but not be connected on fluid source in the situation that, possible, leak fluid self arrives control room 30, and cause the bending of diaphragm 80, wherein stop parts 83 displacement subsequently.

From the content of having described above, it will be appreciated that, safety arrangement in accordance with the present invention 1 also can ideally work in the situation that lacking shell 12, and this assist openings 47 of having supposed packing ring 40 is blocked in some modes.Described assist openings 47 is provided as and makes it possible at production phase testing arrangement 1.For this object, before package shell 12, be enough in one way in air Injection assist openings 47 and inject the path 48 of packing ring 40, to cause that the pressure in the volume of previously mentioned roughly sealing increases.Described pressure increases the bending that causes diaphragm 80, and therefore as the rising of the prevention parts 83 of explaination above, has therefore simulated the triggering of the release mechanism that installs 1.Once the proper operation of verifying attachment 1, must recover the state that main pipe 23 is opened.This can be by discharging assist openings 47 and causing that valve member 72 retreats acquisition towards corresponding initial position; For this purpose, in particularly advantageous embodiment of the present invention, valve body 20 has the hole shown in Fig. 6 or path 36.

Particularly, as visible in Figure 19-20, in path 36, can insert applicable instrument 200 here, this instrument 200 has the diameter of bar 73 or the front part in cross section 201 that diameter or cross section are less than valve member 72.In the example presenting, instrument 200 is for being mainly columniform post, and its part 201 has roughly semicircular cross section.In the example presenting, instrument 200 is pushed in path 36, and wherein aforementioned front part 201 is located in bottom.In this way, as visible in Figure 21-22, the bar 73 of valve member 72 can be promoted by the enable possition towards conduit 23.When arriving described position, by another instrument 202 (or artificially, suppose lack shell 12 or in fact shell open), likely specifically by the portion's of being applied to it part (in Figure 17 84 represent), carry out from top downward pressed part 83.Therefore, obtained the reduction for the first time that stops parts 83 here, its lower end can a bit be resisted against on the front part 201 of instrument 200 at place at certain, and this can see in Figure 23-24.In described state, the bottom part that stops parts 83 in the face of and the upper area of the section of engaging lever 73.In this step, then valve member 72 has been blocked unlatching, and pressed part 83 from the top down when taking out utensil 200 likely.Work as in this way, the front part 201 of utensil 200 is when stoping parts 83 fully to be removed to engage, stop parts to be fully pushed down until its initial position (visible in Figure 17 or Figure 25), or wherein stop parts 83 with remarkable and stable mode engaging lever 73.As can be seen, the layout shown in utilization, the test of safety device 1 is also very simple.Certainly, one or more instruments that mention or that be under any circumstance designed for the type of this object can be used for also the operation of recovery device 1 in other cases, certainly, instrument also likely has and is different from those the shape of enumerating herein, and/or forms a part for Auto-Test System or machine.

It should be noted in the discussion above that hole 36 comes and fluid isolation by the potted components that represented by

O shape ring

79 and 88, O

shape ring

79 and 88 can operate on bar 73 and parts 83, and so can be held open.Yet, for greater safety, in possible variant embodiment, for example also can envision the applicable stopper for spherical hole 36 here.

In being contemplated that preferred version of the present invention, discharge microtubular is provided here, its size is defined as to allow the 18 discharge air from gap, but at least within the time of leaking and triggering the past between valve gear, does not allow large water gaging from device outflow.Described microtubular is preferably at least one place being limited at least in part in valve body 20 and connector 13, but should not get rid of, it can not obtained at least one in packing ring 40 bodies and potted component 98 bodies at least in part.

Described microtubular is for preventing that defect risk is advantageous particularly, and specifically for anti-locking apparatus, between 1 storage life, occur its anyly extremely actuate, the internal pressure that this is caused by variation of ambient temperature increases and causes, specifically after heating.

In the example shown in Figure 26-28, by the aforementioned microtubular of 210 expressions, be located on valve body 20, specifically at packing ring 40, being designed to operation provides in the region 22b of compactness thereon.As can be noted, microtubular 210 consists of the axial notch being formed in the region 22b of part 22 of valve body substantially, it has certain length, so that not only bottom (and being therefore communicated with gap 18) and but also top (and therefore with shell 12 in environmental pressure and valve body 20 between the space of existence be communicated with) give prominence to over packing ring 40, or be at least opened to outside its hermetic unit.As said, microtubular 210 calibrations make it possible to discharge air moderately, and can not cause that any a large amount of water flows out, and for this purpose, its largest amount in cross section or depth S (Figure 28) are very little, are approximately less than 0.5mm, and are specifically less than 0.2mm.As preferably, the largest amount of width L (Figure 28) is also very little, is approximately less than 1mm, and is specifically less than 0.4mm.

The size of microtubular 210 is in no instance as for the discharge that causes under leakage situation, the pressure preventing in gap 18 and/or control room 30 being increased; That is, the microtubular 210 that may exist be unlikely to leak or fault after holdout device operation, as, inner flexible tube 17 faults or have larger fluid leakage from potted component.

The above description of mentioning microtubular 210 has formed above about the chamber of roughly sealing or the possible example of gap or the said content of volume (not that is being, completely bubble-tight).

Be described as above according to the structure and characteristics of the example of device of the present invention can be mainly also for for example, carry out the situation of actuated valve device by being different from the Crumple element (as, expandable material,, anhydrous sponge) of diaphragm.This can be very simply by making anhydrous sponge obtain with stoping parts 83 operative association, sponge is accommodated in sensing chamber or control room 30, or in similar shell, for example operationally be arranged on, between the applicable rest element (, its intermediate flange 86) that the bottom of identical chamber is associated with same parts 38.This type of embodiment lists in Figure 29, and Figure 29 is the such decomposition view that is similar to Figure 13.In this solution, provide generally the anhydrous sponge by 250 expressions to substitute diaphragm 80, anhydrous sponge has the dish type with axial center hole here, and this sponge is operationally arranged between the bottom of chamber 30 and the intermediate flange 86' of parts 83.In example, for the rapidity of strengthening intervening, flange 86' has the diameter that is slightly greater than dish 250, and has cylindrical peripheral to limit base 86a, thereby can surround anhydrous sponge disc 250.The sidewall of quoting with the diameter of the diameter that is less than chamber 30 makes it possible to when sponge becomes wet by leaking the increase along lateral limitation sponge volume, to allow " spilling " in axial direction to increase like this, and has therefore strengthened the rapidity of intervention.It should be noted in the discussion above that in the solution of enumerating, chamber 30 not necessarily needs at an upper portion thereof in part closed with sealing means, and therefore diaphragm 80 may be omitted, as in situation about enumerating.In addition, also may be able to omit and cover 89.

Therefore in this embodiment, when sponge is in anhydrous state and when it has the volume reducing, stop parts 83 visible such position in being similar to Figure 18.On the contrary, when arriving chamber 39 when leaking and becoming wet because of its sponge, sponge increases its volume between the bottom of chamber 30 and flange forming portion 86', thereby generates the lift of prevention parts 83; Therefore, valve member 72 is arranged to freely, and can move to be similar to previously described mode the position of conduit 23 closures.

Clearly manifest from the above description feature of the present invention, manifested equally the advantage that the present invention gives.Those skilled in the art will be clear that, many modification are possible for the anti-overflow safety device of describing by way of example herein, and this departs from the scope of the present invention as being defined by the following claims thus.

The part 21 of the corresponding path of valve body 20 and

shell

12 and 22 can have be different from described herein and shown in the positioned opposite of roughly quadrature arrangement, the layout that is preferably angulation be included in

part

21 and 22 quadrature arrangement and axial arranged between.

Specifically reference has been described the present invention for the safety device leaking, but it will be appreciated that, solution also can be used for controlling the leakage of other fluid (for example, gas) using in home appliances.

According to another modification (not presenting), likely in valve body, directly limit having of being directly communicated with Huo Yu chamber, gap 30 be similar to before by the test access of such object of the openings of 47 and 48 expressions.In described embodiment, test access can seal with closure member after test, as be pushed into the ball of appropriate location, or by means of the element that belongs to shell 12 or carried by shell 12, it has and is similar to above for example, by the function of 59 expressions (, be arranged on before by the element of being made by elastomeric material in the rigid projections of the type of 59 expressions).

The first air locking (as packing ring 40) may by elastomeric material molded (as, coated molded or co-molded) be associated with valve body.

In a possible embodiment, at least one

potted component

40 and 98 and inner flexible tube co-molded, ripple inner flexible tube specifically, wherein said at least one element also provides with respect to the end 22a of inner flexible tube 17 body 20 mounted thereto or 13 or 94 sealing.

In possible modification, the valve gear of a connector is contemplated to has corresponding valve member, and it is designed to enter corresponding closing position under the thrust of incoming fluid, and then it be bonded on described position by applicable fixing device.

As already mentioned, comprise that the structure of the valve member 72 of corresponding bar 73 and element 74 can be made by single-piece above.Corresponding air locking 76 even can be coated and be molded in described structure.Equally, stop the air locking 88 of parts 83 also can be molded on the latter.The body of diaphragm 80 is also likely molded on the body that stops parts 83.Substantially, one or more parts (as, various potted components) can be coated in the rigid body (as, connector 13 and 20) of molded or co-molded auto levelizer.

In the example of enumerating, device 1 part 2 provides with fluid source and is connected, and part 3 provides and being connected of home appliances.On the other hand, as said, reverse configuration is possible, that is, wherein part 2 is connected on home appliances, and part 3 is connected on fluid source (and therefore, being connected on the valve body 20 at outlet end place of device).Also likely to connector 13 and connector 20, both provide the corresponding valve gear of described type above.

Claims

1. for the safety device for fluid leakage of home appliances, it is arranged between fluid source and home appliances and is connected, and comprising:

Be defined for respectively first conduit (23) of described fluid and first connector (20) of the second conduit (93) and the second connector (13),

Valve gear, it comprises the valve member (72) being arranged on described the first connector (20), and is designed to adopt enable possition and the closing position of described the first conduit (23),

The not flexible inner flexible tube (17) of saturating described fluid and flexible outer flexible tube (16),

Wherein said inner flexible tube (17) is connected with described the second conduit (93) fluid with described the first conduit (23), and extend longitudinally in described outer flexible tube (16), the gap (18) that makes to have near-end and far-end is limited to described two flexible pipes (16,17) between at least a portion, described gap (18) roughly in described end closure for possible leak fluid is remained on wherein

It is characterized in that, comprise the first air locking (40), described the first air locking (40) is operationally arranged between described outer flexible tube (16) and described the first connector (20), and be defined for the chamber (30) of being arranged to described gap (18) and described the first connector (20), the connecting path (44-45) that specifically control room or actuation chamber fluid are communicated with.

2. device according to claim 1, it is characterized in that, described the first air locking comprises the seal member (40) of general toroidal, described seal member (40) connects hermetically with respect at least a portion (22a, 37) of described the first connector (20) and with respect to the proximal part of described outer flexible tube (16).

3. according to claim 1 or device claimed in claim 2, it is characterized in that, described outer flexible tube (16) is at least wavy in described close end office, and at least a portion (42) of described the first air locking (40) can obtain and the connecting or complementary connection of the general shape of the inner surface of described proximal part.

4. device according to claim 3, it is characterized in that, a described part (42) of described seal member (40) has the outer surface ripple that can connect hermetically with the ripple of the described proximal part of described outer flexible tube (16), and described outer flexible tube (16) is preferably with elasticity and is interference fitted in a described part (42) of described seal member (40).

5. according to device in any one of the preceding claims wherein, it is characterized in that, described seal member (40) has top part (41) and bottom part (43), and the diameter of the periphery size of described seal member (40) roughly reduces towards described bottom part (43) from described top part (41).

6. device according to claim 2, it is characterized in that, described seal member (40) can obtain the first sealing with respect to described outer flexible tube (16), with respect to the second sealing of the first (22b) of described the first connector (20), and with respect to the 3rd sealing of the second portion (37) of described the first connector (20).

7. device according to claim 1, it is characterized in that, described the first connector (20) limits subsidiary conduit (37-38), described subsidiary conduit (37-38) leads in described chamber (30), it is upper that the outlet (44) of the connecting path (44-45) of described the first air locking (40) is connected to described chamber (30) hermetically, and the entrance of described connection path (44-45) is opened towards described gap (18).

8. device according to claim 1, it is characterized in that, described the first air locking (40) has the assist openings (47-48) being communicated with described gap (18) fluid, described assist openings (47-48) faces the outside of described the first air locking (40), and can be closed hermetically by corresponding closure member (59), described closure member (59) is preferably the housing (12) that belongs to described the first connector (20).

9. according to device in any one of the preceding claims wherein, it is characterized in that, described device comprises the housing (12) that surrounds at least in part described the first connector (20), and wherein specifically at least a portion (56) of described housing (12) is configured to specifically utilize general shape to connect to connect with the outer surface of described outer flexible tube (16).

10. according to device in any one of the preceding claims wherein, it is characterized in that, described connecting path (44-45) comprises at least two extending parts with different sections, as, there is the first extending part of circular section and there is tapered segment or the second extending part of convergence section.

11. devices according to claim 2, is characterized in that, described connecting path (44-45) comprises a tubular portion (44) of the described seal member (40) connecting for the entrance with described chamber (30).

12. devices according to claim 11, is characterized in that, described tubular portion (44) radially and/or is vertically given prominence to from the profile of described seal member (40).

13. according to claim 1 to the device described in claim 3, it is characterized in that, described device comprises:

Valve gear, it comprises the valve member (72) being assembled on described the first connector (20), and can adopt enable possition and the closing position of described the first conduit (23),

Control device, it is for described valve gear (72) is remained on to corresponding enable possition, and described control device can be operable to the corresponding off-position that adopts described valve member (72),

Wherein said valve gear comprises removable from non-operating state or is deformable to the element (80) of mode of operation, for generating, actuates control, described in actuate control and cause that respectively described valve gear is transferred to described closing position from described enable possition,

And wherein said gap (18) be communicated with described chamber (30) fluid via described connecting path (44-45), make the fluid leaking towards described gap (18) cause described removable or deformable element (80) from described non-operating state displacement or be deformed into described mode of operation.

14. devices according to claim 13, is characterized in that, described chamber (30), at least in part by described removable or deformable element (80), specifically the diaphragm of elastically deformable defines.

15. 1 kinds for the manufacture of and/or test according to the method for the safety device for fluid leakage for home appliances of described and one or more features that propose.