EP2762234B1 - Sanitary insert unit - Google Patents

Sanitary insert unit Download PDF

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Publication number
EP2762234B1
EP2762234B1 EP13006068.4A EP13006068A EP2762234B1 EP 2762234 B1 EP2762234 B1 EP 2762234B1 EP 13006068 A EP13006068 A EP 13006068A EP 2762234 B1 EP2762234 B1 EP 2762234B1
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EP
European Patent Office
Prior art keywords
valve body
flow path
switching state
flow
characterised
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.)
Active
Application number
EP13006068.4A
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German (de)
French (fr)
Other versions
EP2762234A1 (en
Inventor
Alexander Stein
David Birmelin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Neoperl GmbH
Original Assignee
Neoperl GmbH
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Publication date
Priority to DE102013001931.1A priority Critical patent/DE102013001931B4/en
Application filed by Neoperl GmbH filed Critical Neoperl GmbH
Publication of EP2762234A1 publication Critical patent/EP2762234A1/en
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Publication of EP2762234B1 publication Critical patent/EP2762234B1/en
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/08Jet regulators or jet guides, e.g. anti-splash devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/16Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets
    • B05B1/1609Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening having selectively- effective outlets with a selecting mechanism comprising a lift valve
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3006Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the controlling element being actuated by the pressure of the fluid to be sprayed
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C2001/026Plumbing installations for fresh water with flow restricting devices

Description

  • The invention relates to a sanitary inserting unit having an insertion housing in which a first flow path and a second flow path are formed, the first flow path and the second flow path each extending between at least one inflow-side inlet opening and one outflow-side outlet end, and with a valve body to which a In the first flow path arranged flow obstacle is formed and which is adjustable from a first switching state against a restoring force in a second switching state, wherein the first flow path in the first switching state and the second switching state is flowed through and wherein the second flow path in the first switching state closed by the valve body and is open in the second switching state.
  • Such insertion units are known and have proven themselves, for example, in water fittings to allow switching between a first exit jet emerging from the first flow path and a second exit flow emerging from the second flow path. The known solutions see a shutdown or interrupting the first flow path at a connection or opening of the second flow path, so that in each switching state only one flow path is opened and the other flow path is closed.
  • From the DE 2004 044 158 B3 already known a sanitary inserting unit of the type mentioned, which can be mounted with the help of a sleeve-shaped outlet nozzle on the water outlet of a sanitary outlet fitting. The previously known insertion unit has an insertion housing, in which the valve piston of a valve biased in the closed position is displaceably guided. The valve piston is hollow and penetrated by a central cleaning jet channel. The valve piston surrounds a flow chamber which has a plurality of water outlet nozzles. In the closed position of the valve, only the cleaning jet channel is flowed through in a first flow path. If the valve piston pretensioned in the closed position by a return spring is increasingly moved into its open position with increasing water pressure, the water also flows through the water outlet nozzles in a second flow path over the flow chamber, whereby a fine spray shower jet forms.
  • A disadvantage of the known insertion unit, that the valve piston is biased by a return spring. Since this return spring allows the valve piston to move increasingly in its open position only with increasing water pressure, the transitions between the cleaning jet formed in the first flow path and the spray jet formed via the second flow path are fluid and not clearly separated.
  • In the US Pat. No. 7,431,224 B2 is a sanitary inserting unit with an insertion housing in which a first and a second flow path are formed. It goes in the US Pat. No. 7,431,224 B2 The invention described above is based on a prior art in which an insert is provided in the fitting outlet, which supports the uniform distribution of the outlet flow across the cross-sectional area and, if appropriate, also supports a uniform distribution of hot and cold water in order to minimize the risk that the user scalds his hands when the hot water flow is not properly mixed with the cold water flow. The in US Pat. No. 7,431,224 B2 The prior art referred to regularly has the form of a transverse plug which can be mounted in the outlet opening and which is traversed by a plurality of axial bores. The combined cross-sectional area of the bores is typically slightly smaller than the cross-sectional area required to handle the full flow rate of water through the valve mechanism, such that the cross-plug at the hand outlet causes a small backflow to produce a stream of water from the tap , However, if the faucet valve is only partially open, the combined cross-sectional area of the holes in the plug will exceed the cross-sectional area required to handle the full flow rate of water through the plug. The water then exits because of lack of pressure drop at the stopper as a slow flow of water from the Hahnauslass. Since the slow flow of water does not fill the outlet, but emerges as a flat stream in an arc at the bottom of the plug, the shallow flow of water not only gives the appearance of a low water flow rate, but is also aesthetically unacceptable to the user since the flow takes the form of a lazily dribbling from the tap has. In order now to create a flow or pressure responsive inserting unit that controls the flow of water so that the Water exits in an array of jets at low flow rates, but when needed also allows full water flow is in US Pat. No. 7,431,224 B2 provided that the inlet in the insertion housing is connected to the outlet via a first and a second flow path, wherein in the second flow path a valve is provided which releases the second flow path when the water pressure exceeds a threshold value. Thus, the outflowing water initially flows at low water pressure through an annularly arranged first flow path, in order to let the water also escape through the inner second flow path after exceeding a threshold value and opening the valve provided in the second flow path.
  • The invention has for its object to provide an alternative embodiment for a sanitary insert.
  • To achieve the above object, the features of claim 1 are proposed according to the invention. In particular, it is thus proposed in a sanitary insert of the type described above, that on the valve body arranged in the first flow path flow obstacle is formed and that the first flow path in the first switching state and the second switching state can be flowed through. Thus, it can be achieved that both the first flow path and the second flow path are open in the second switching state. The water can therefore flow simultaneously in the second switching state through the parallel flow paths. The total provided in the second switching state cross-sectional area of the flow paths is thus compared to the previously known, exclusive release only the second flow path with simultaneous blocking of the first flow path enlarged. The formation of a flow obstacle in the first Flow path has the advantage that a liquid flowing in the first flow path can develop a force for switching the valve body in the second switching state. Thus, an automatic switching of the valve body with sufficient water pressure in the first switching state can be effected. According to the invention, the valve body of the insertion unit has an elastic wall region, which in the first switching state has a straight course along a course direction and a bent course in the second switching state along the course direction. Thus, a change in shape is achieved by buckling. Advantage of the buckling against an elastic deformation, for example according to the Hooke's law - after the deformation is proportional to the deformation force - is that a threshold value can be defined, from which only a change in shape begins.
  • In one embodiment of the invention can be provided that the flow obstacle is formed as a flow opening. The flow opening thus forms a cross-sectional constriction in the first flow path. Thus, in a simple manner, a flow obstacle can be created by a constriction with respect to adjacent (upstream and downstream) sections of the flow path. Preferably, the flow opening is narrowing in the flow direction. Thus, for example, a conically tapered flow opening can be used. The advantage here is that the narrowing of the flow path at the flow opening a simple means is provided to pressurize and actuate the valve body in dependence on the water pressure and / or Strömungsgeschwihdigkeit / flow rate.
  • In one embodiment of the invention can be provided the flow obstacle is formed at an inflow-side end of the valve body. The advantage here is that an admission of the valve body by inflowing water for switching the valve body is easily accessible.
  • In one embodiment of the invention it can be provided that the valve body is supported on the outflow side via a support on a rigidly connected to the plug-in housing support member. The advantage here is that a change in shape of the valve body is easily accessible by the plug-in housing acts as an abutment for the pressurization of the valve body.
  • In one embodiment of the invention can be provided that the valve body can be converted by a change in shape from the first switching state to the second switching state. The change in shape can be achieved by elastic deformation of the valve body. The advantage here is that a resistance to an elastic shape change for generating the restoring force, which causes a transfer to the first switching state, is usable. Alternatively or additionally, it can be provided that the valve body can be transferred from the first switching state to the second switching state by a change in position. For example, the switching can be done by a combined change in shape and position change.
  • In one embodiment of the invention can be provided that the or an elastic (r) wall portion is formed as a bending zone. In this case, a kink zone is generally understood to mean an area which is aligned and designed in such a way that buckling of the kink zone takes place during the application for switching over. The buckling is marked here by a deformation of the material, which only starts when a threshold value for the applied force is exceeded, wherein the force required for a continuation of the material deformation is less than the (initially to be exceeded) threshold value. This behavior can be produced, for example, by virtue of the fact that a force vector, which initially acts on a material of the elastic wall region, runs in this material and that the material deforms after insertion of the buckling in such a way that the further acting force vector points out of the material.
  • In one embodiment of the invention can be provided that the or an elastic (r) wall area is formed hollow cylindrical. Preferably, the elastic wall portion surrounds the first flow path in sections and takes them in sections. The advantage here is that a central loading of the valve body can be achieved by the water flowing in the first flow path. In this way, a defined adjusting movement of the valve body between the first switching state and the second switching state can be achieved.
  • In one embodiment of the invention can be provided that the valve body is designed as a hollow body.
  • Preferably, the hollow body receives the first flow path in sections. The advantage here is that a space-saving guidance of the first flow path is possible. It is furthermore advantageous that a branch of the second flow path from the first flow path through the valve body can be formed. For example, the valve body may have a shape separating the first flow path from the second flow path to the branch, except for the or a flow opening.
  • In one embodiment of the invention can be provided that the valve body is cup-shaped, wherein at least one flow hole for the first flow path is provided in the bottom of the pot. Due to the cup shape, a branching off of the second flow path from the first flow path can be formed in a simple manner. For example, the first flow path can be guided within the pot shape, that is to say in an interior at least partially enclosed by the pot shape. The second flow path can be performed outside the pot shape. Preferably, the pot shape is made with a liquid-tight wall, so that the flow paths can be separated from each other. In particular, it can be provided here that the flow obstacle, preferably as a throughflow opening, is formed on an end face of the cup-shaped valve body. The advantage here is that the fluid flowing at the flow obstacle can develop a force due to the flow resistance, with which the switching of the valve body can be driven. Preferably, the end face is plate-shaped. The advantage here is that a developed at the flow obstacle force is conductive to the side wall. Preferably, the end face is inelastic or rigid in comparison to the elastic wall area. It is particularly favorable when the Flow obstacle is formed centrally with respect to the end face. As a result, a central, symmetrical loading of the valve body can be achieved due to the liquid flowing through the flow obstacle, with which a defined change in shape and / or a defined change in position of the valve body during switching can be effected.
  • In one embodiment of the invention, provision can be made for a sealing surface to be formed on or on the inflow-side end face of the valve body, with which the second flow path can be sealed in the first switching state of the valve body. Thus, a simple means for interrupting the second flow path in the first switching state can be provided.
  • In one embodiment of the invention can be provided that the valve body is rotationally symmetrical. The advantage here is that a defined shape change can be achieved in a simple manner.
  • In one embodiment of the invention can be provided that the valve body is integrally formed. Thus, a simple installation is achievable. Preferably, the valve body is made of an elastic material, for example made of rubber. It is particularly advantageous if the valve body is made of silicone or a thermoplastic elastomer. The elastic properties of the material used are thus for the development of a restoring force, which counteracts a change in shape from the first switching state to the second switching state available.
  • It is therefore possible that as a restoring force for returning the valve body in the first switching state, a spring element and / or the inherent elasticity of the material used for the valve body is provided. Additionally or instead, a particularly advantageous embodiment according to the invention provides that for resetting the valve body in the first switching state, a magnetic restoring force is provided. For this purpose, it is expedient if the plate and / or the valve body is made of a magnetic or magnetizable material / are. It is also possible: that a preferably annular permanent magnet is provided on the side facing away from the valve body side of the plate and / or the plate side of the valve body, the annular opening is arranged in particular approximately coaxially to the flow-through opening in the valve body. Thus, an advantageous Ausführüngsform according to the invention, for example, have an annular permanent magnet which is arranged on the side facing away from the plate of the valve body and which cooperates with the plate made of a magnetic or magnetizable material. In such an embodiment, the valve body is pressed in the first switching state by means of the magnetic force against the plate so that the region lying between the plate and the valve body is well sealed in this switching state.
  • In one embodiment of the invention can be provided that at an inflow end of the valve body, a guide element is formed, which engages at least in the first switching state in a counter-guide element and at least one movement or shape change of the valve body at the transition from the first switching state to the second switching state at least a position or shape change section leads. The advantage here is that a defined change in shape supportable, by the guide element is guided in a predetermined path. Preferably, the counter-guide element is connected to the plug-in housing. The advantage here is that a predetermined guide with respect to the plug-in housing can be set up.
  • In one embodiment of the invention can be provided that at an inflow end of the valve body, a latching element is formed, which is locked in the first switching state with a connected to the plug-in counter-latching element. The advantage here is that a trigger point is definable, from which to use a switching operation of the valve body. This trigger point can be given by the force that is required to dissolve or break the locking connection between the locking element and the counter-locking element against the locking direction. Fluttering of the valve body in the transition from the first switching state to the second switching state is thus avoidable, since after overcoming the latching connection, the force generated by the flow or the water pressure is sufficient to completely transfer the valve body to the second switching state.
  • In an embodiment of the invention, it can be provided that the latching element is formed circumferentially around the valve body. The advantage here is that an all-round mounting of the valve body can be reached on the counter-latching element. Thus, a defined starting position for the switching operation of the valve body can be established. It is particularly advantageous if the locking element is designed as an annular latching lug, which engages in the counter-latching element which is designed as a corresponding annular groove or annular counter-latching nose.
  • In one embodiment of the invention can be provided in that the flow obstacle on the valve body is formed centrally with respect to at least one element, preferably a plurality of elements, from the group of: longitudinal axis of the valve body, elastic wall area, latching element, guide element and support. The advantage here is that the acting force is centrally introduced into the valve body to achieve a defined shape change.
  • In one embodiment of the invention can be provided that the or a support of the valve body has a reinforcing ring. The advantage here is that a stable abutment for receiving a force acting on the valve body can be provided. The valve body can thus be acted upon between the flow obstacle and the support element or a supporting support, whereby the desired change in shape for switching can be forced. Preferably, the reinforcing ring rotates around the first flow path. This has the advantage that the admission developed by a flow in the first flow path can be supported on all sides or even in the center.
  • In one embodiment of the invention it can be provided that the valve body rests in the second switching state on a stop element connected to the plug-in housing. The advantage here is that a defined end point for the switching movement in the second switching state can be established. Preferably, the stop element is designed as a pin. Thus, a simple means is provided to specify the second switching state of the valve body. For example, it can be provided that the stop element limits the or a position and / or shape change of the valve body between the first switching state and the second switching state.
  • In one embodiment of the invention can be provided that the stop element forms an open at least in the second switching state portion of the first flow path. The advantage here is that the first flow path is not interrupted in the second switching state, but remains available for the water flow.
  • In one embodiment of the invention can be provided that in the first flow path a Mengenbegrenzer is arranged in the flow direction in front of the valve body. The advantage here is that controlled flow conditions can be established at the flow obstacle. Thus: a desired switching point of the valve body can be specified exactly. Fluttering of the valve body, when the switching conditions are just reached but not yet exceeded, is avoidable. Alternatively or additionally, it may be provided that in the second flow path, a flow limiter is arranged in the flow direction in front of the valve body. It is particularly favorable if the first flow path and the second flow path have a common section which runs through the flow limiter.
  • Preferably, the first flow path and the second flow path have a common portion and branch in the flow direction in front of the valve body.
  • In one embodiment of the invention, it may be provided that the first flow path at the outlet end in a first outlet region and the second flow path at the outlet end emerge in a second outlet region, the second outlet region surrounding the first outlet region transversely to an outlet direction. The advantage here is that a from the second outlet area at befindlichem in the second switching state valve body water jet as a Curtain or blinds can hide a water jet emerging from the first outlet area. Thus, a uniform, homogeneous appearance of the exiting water jet can be achieved even in the second switching state of the valve body.
  • The invention: will now be described in more detail with reference to an embodiment, but is not limited to this embodiment. Further exemplary embodiments result from the combination of the features of individual or several protection claims with one another and / or with one or more features of the exemplary embodiment.
  • It shows:
  • Fig. 1
    a sanitary inserting unit according to the invention in a partially cutaway view,
    Fig. 2
    the insertion unit according to Fig.1 in exploded view,
    Fig. 3
    the insertion unit according to Fig.1 with the valve body in the first switching state,
    Fig. 4
    the insertion unit according to Fig.1 with the valve body in an intermediate state between the first switching state and the second switching state,
    Fig. 5
    the insertion unit according to Fig.1 with valve body located in the second switching state, and
    Fig. 6
    one with the insertion unit according to the FIGS. 1 to 5 similarly configured insertion unit, in addition to the return of the valve body a magnetic restoring force is provided.
  • In the FIGS. 1 to 6 is a designated as a whole with 1 insertion unit shown in two different versions. It is in Fig.1 one of these embodiments of the insertion shown in a segmented cutaway representation.
  • The insertion unit 1 has a multi-part insertion housing 2, which is designed for insertion into a water outlet of a valve not shown.
  • In the insertion housing 2, a first flow path 3 and a second flow path 4 are formed for water flowing through.
  • The first flow path 3 and the second flow path 4 are parallel to each other between an inlet opening 5 and an outlet end 6.
  • The inlet opening 5 is covered by an inlet sieve 7.
  • The insertion unit 1 is used in use in a water outlet of a water fitting in an orientation in which the inlet screen 7 is first flown. The inlet opening 5 is thus arranged on the inflow side, while the outlet end 6 is downstream. The water thus flows in a flow direction from the inlet opening 5 to the outlet end 6.
  • Inside the insertion housing 2, a valve body 8 is arranged, which is manufactured in one piece from silicone or another rubber or generally from an elastic material is. Silicone has the added benefit of being food safe. There are also other food safe, elastic materials usable.
  • This valve body 8 is between a first switching state, in the Figure 3 and 6 is shown, and a second switching state, in Figure 5 shown is adjustable.
  • Figure 4 shows an intermediate state of the valve body 8 in the adjustment, so the position and shape change, between the first state and the second state.
  • Fig.1 also shows the valve body 8 in an intermediate state.
  • Fig.2 shows the valve body 8 in a relaxed ground state, which corresponds to the first switching state substantially, so apart from a set bias. It can be seen that the valve body 8 automatically returns to the first switching state in the absence of application. This means that the adjustment, ie in the embodiment, the shape change, the valve body 8 must be made from the first switching state to the second switching state against a restoring force, which the elastic valve body 8 developed itself due to its elasticity.
  • In the first switching state, the valve body 8 releases the first flow path 3 and blocks the second flow path 4. In the second switching state, the valve body 8, on the other hand, releases the first flow path 3 and the second flow path 4 simultaneously. The second flow path 4 is thus connected in the second switching state of the valve body 8 to the first flow path 3.
  • The valve body 8 can be transferred from the first switching state to the second switching state by a water pressure applied to the inlet opening 5 or a water flow flowing through the inlet opening 5.
  • For this purpose, a flow obstruction 9 is formed on the valve body 8. The flow obstruction 9 forms an increased flow resistance in the first flow path 3.
  • In the exemplary embodiment, the flow obstacle 9 is formed as a throughflow opening 10. The throughflow opening 10 has a decreasing diameter in the flow direction and thus narrows conically in the flow direction.
  • On the outflow side, a support 11 is formed on the valve body 8, via which the valve body 8 is supported on a support element 12. The support 11 is designed as a ring-shaped circumferential reinforcing ring and comprises the circumference of the first flow path. 3
  • The support member 12 is also annular and connected to the insertion housing 2.
  • The valve body 8 has an elastic wall portion 13, which causes the mentioned restoring force.
  • The elastic wall portion 13 is in the first switching state according to Figure 3 is cylindrical and surrounds a portion of the first flow path 3. The valve body 8 is thus formed as a hollow body.
  • The elastic wall portion 13 has an annular Material weakening region 14, in which a buckling occurs when an introduced on the flow obstacle 9 pressure exceeds a threshold value.
  • The elastic wall region 8 thus forms a bending zone. In the first switching state, the elastic wall region 13 has a straight course in a course direction along the flow direction. In the second state, a kink is formed in the annular material weakening region 14, so that the elastic wall region 13 assumes a bent course in the course direction. Due to the buckling, the elastic wall region 13 folds inwards and / or outwards in the direction of progression
  • In other words, the material weakening region 14 defines a predetermined bending line which rotates on the elastic wall region 13 about a longitudinal axis 16 of the valve body 8.
  • On the inflow side, a plate-shaped end face 15 adjoins the elastic wall region 13. Centered in the end face 15, that is in the center of the disc-shaped, round end face 15, the throughflow opening 10 or generally the flow obstacle 9 is introduced.
  • The end face 15 is comparatively stiff in comparison to the elastic wall region 13 in order to transmit the pressure introduced by the liquid flowing in the first flow path 3 onto the flow obstacle 9 as force on the elastic wall region 13.
  • The force vector of this force runs in the first switching state within the elastic wall portion 13. Only when a threshold value is exceeded, there is a buckling of the first wall portion 13, whereby the valve body 8 in the second switching state is transferred. Once the buckling has begun, the valve body 8 is placed in the second switching state, since the force for further material deformation is less than the initially required force.
  • The valve body 8 forms with the hollow cylindrical wall portion 13 and the end face 15 a pot shape, which is formed in the pot bottom of this pot shape opening in the flow direction. Thus, the first flow path 3, which runs in sections in the valve body 8, out of the opening of the pot shape.
  • Overall, it can be seen that the valve body 8 is formed rotationally symmetrical about a longitudinal axis 16.
  • In the flow direction facing the end 17, a guide member 18 is formed. In the first switching state, the guide element 18 engages in a counter-guide element 19.
  • The guide member 18 is pin-shaped. The counter-guide member 19 is designed as a bore whose diameter is matched to the guide member 18.
  • The counter-guide element 19 is formed on a plate 20, which is connected to the insertion housing 2. The counter-guide member 19 thus forms a passage opening 32 in the plate 20 for the first flow path. 3
  • The counter-guide element 19 supported on the insertion housing 2 thus guides the valve body 8 at the beginning of the shape-changing movement during the transition from the first to the second switching state.
  • On the peg-shaped guide element 18, a latching element 21 is formed as an annular circumferential latching lug. On the counter-guide element 19, a counter-latching element 22 in the form of an internally annular circumferential latching lug is formed. The clear inner diameter of the counter-latching element 22 is smaller than a maximum outer diameter of the latching element.
  • Therefore, the locking element 21 engages behind the counter-latching element 22 in the first switching state of the valve body 8. Thus, the interaction of the latching element 21 with the counter-latching element 22 creates an additional resistance to a transition from the first switching state to the second switching state.
  • In the first switching state according to Figure 3 is the second flow path 4 by an annular sealing surface 31, which rests against the plate 20 is dense and flat, interrupted. The sealing surface 31 is in this case formed on the end face 15 of the valve body 8 and lies in the first switching state surface on the plate 20 downstream.
  • In the first switching state, the valve body 8 thus closes the passage opening 32 except for the throughflow opening 10.
  • The first switching state can only be left when the force applied to the flow obstacle 9 by the flowing liquid is sufficient to dissolve both the latching connection between the latching element 21 and the counter-latching element 22 than to bend the elastic wall region 13.
  • Here, the flow obstacle 9 on the rotationally symmetrical valve body 8 is centered with respect to the longitudinal axis 16, the cylindrical elastic wall portion 13, the annular circumferential locking element 21, the peg-shaped, rotationally symmetrical guide member 18 and the annular or brim-shaped support 11 is formed. In other words, the flow obstacle 9, the elastic wall portion 13, the locking element 21, the guide member 18 and the support 11 are arranged concentrically to the longitudinal axis 16 of the rotationally symmetrical valve body 8 to a uniform force application in the elastic wall portion 8 and a rotationally symmetric or as possible to achieve a uniform change in shape of the valve body 8.
  • The second switching state of the valve body 8 is defined by the stop element 23, which projects in a peg-shaped manner from a screen plate 24. The screen plate 24 is connected to the plug-in housing 2. On the screen plate 24 and the support member 12 is formed.
  • The stop element 23 thus limits the shape change movement of the valve body 8 and forms a stop against the flow obstacle 9 introduced force.
  • The in Figure 4 shown intermediate state is taken only briefly during a transition, since the force that is required for further buckling of the elastic wall portion 13 of the formation of a first Knicks, much less than the force that was required to form this first Knicks. The valve element 8 will thus pass directly into the second switching state as soon as the latching connection between latching element 21 and counter-latching element 22 has been released and has used the aforementioned buckling of the elastic wall region 13.
  • In the second switching state of the now open second runs Flow path 4 also through the passage opening 32. Behind the passage opening 32 thus a branch of the flow paths is provided, at which the second flow path 4 branches off from the first flow path 3.
  • At the inflow end of the stop element 23, two intersecting slots 25 are introduced. These slots 25 form in the second switching state an open portion of the first flow path 3. The flow path 3 is thus not closed in the second switching state, but remains permeable or open.
  • The stop element 23 is arranged concentrically to the longitudinal axis 16.
  • As soon as the water pressure drops sufficiently in the first flow path 3, the elastic wall region 13 returns to its hollow cylindrical basic shape. Thus, the valve body 8 is set back at a sufficient pressure drop in the first switching state.
  • Tapered chamfers 27, 28 or chamfers on the latching element 21 and the counter-latching element 22 facilitate the engagement of the latching element 21 behind the counter-latching element 22.
  • If one bears the position of the flow obstacle 9 relative to the plug-in housing 2 or the passage opening 32 as a function of the water pressure, the result is a hysteresis behavior: First, the (static and / or dynamic) water pressure must exceed a threshold value in order to switch over from the first Switching state to trigger in the second switching state. As soon as this threshold is exceeded, the transition to the second switching state takes place completely. The valve body 8 remains in second switching state until the water pressure has dropped below a second, lower threshold, which is overcome by the elastic clamping force of the valve body 8. Only then can the valve body 8 be reset to the first switching state. This second threshold is well below the first threshold. Intermediate states in which none of the switching states is defined, but in which the valve body flutters uncontrollably, are thus avoidable.
  • In the flow direction in front of the valve body 8, a Mengenbegrenzer 26 is arranged in the known manner. The flow limiter 26 sets flow conditions defined at the flow obstacle 9 so that the trigger point for switching over from the first switching state to the second switching state, which is characterized by a pressure threshold value being exceeded, can be precisely defined.
  • At the outlet end 6, a first outlet region 29 is formed. In the first outlet region 29, the water flowing through the first flow path 3 exits.
  • At the outlet end 6, a second outlet region 30 is further formed. In the second outlet region 30, the water flowing through the second flow path 4 exits.
  • The second flow path 4 is adapted for adding air to the flowing water. The water leaving the second outlet area 30 therefore has a milky appearance. By contrast, the water jet from the first outlet region 29, that is to say the first flow path 3, has a clear appearance.
  • The second outlet area 30 surrounds the first outlet area 29 annular and transverse to the outlet direction of the water from the outlet end 6, so that the first outlet region 29 is within the second outlet region 30. Thus, the water emerging from the second outlet region 30 in the second switching state forms a water jet in the form of a hollow cylinder. Inside this hollow cylinder, the clear water jet emerging from the first outlet region 29 runs hidden behind the milky water jet. Since the second flow path surrounds the first flow path at least on the outlet side, the water emerging from the first flow path is completely and opaquely enclosed by the water flowing out of the second flow path.
  • In the Figure 6 in a longitudinal section insertion unit 1 corresponds substantially to that in the Fig.1 to 5 shown embodiment. In the insertion unit 1 according to Figure 6 However, to reset the valve body 8 in the first switching state in addition or - as here - provided instead a magnetic restoring force. For this purpose, the plate 20 of the in Figure 6 shown embodiment of a magnetic or magnetizable material, while on the side facing away from the plate 20 of the valve body, an annular permanent magnet 33 is arranged. This annular permanent magnet 33, whose annular opening is arranged approximately coaxially to the opening located in the pot bottom of the cup-shaped valve body 8, cooperates with the magnetic or magnetizable material of the plate 20 such that in the in Figure 6 Insertion unit 1 shown also a magnetic restoring force acts on the valve body 8. This magnetic restoring force not only serves to actuate the valve body 8, but at the same time effectively seals the area between the plate 20 and the adjacent flat side of the valve body 8 in the first switching state. It is advantageous that the field strength of this magnetic restoring force decreases quadratically with the distance of the valve body 8 from the plate 20.
  • In a sanitary inserting unit 1 with an elastically deformable valve body 8 switchable between a first switching state and a second switching state, it is proposed to form a first flow path 3 and a second flow path 4 and to block the second flow path 4 in the first switching state and to switch it on in the second switching state, wherein the first flow path 3 is open in the first switching state and in the second switching state.
  • LIST OF REFERENCE NUMBERS
  • 1
    insertion unit
    2
    insert housing
    3
    first flow path
    4
    second flow path
    5
    inlet port
    6
    outlet
    7
    inlet screen
    8th
    valve body
    9
    flow obstruction
    10
    Flow opening
    11
    support
    12
    support element
    13
    elastic wall area
    14
    Material weakening region
    15
    front
    16
    longitudinal axis
    17
    upstream end of the valve body
    18
    guide element
    19
    Counter-guide element
    20
    plate
    21
    locking element
    22
    Counter-locking element
    23
    stop element
    24
    sieve plate
    25
    slot
    26
    Flow limiter
    27
    bevel
    28
    bevel
    29
    first outlet area
    30
    second outlet area
    31
    sealing surface
    32
    Port
    33
    permanent magnet

Claims (17)

  1. Sanitary insert unit (1) having an insert housing (2) in which a first flow path (3) and a second flow path (4) are formed, wherein the first flow path (3) and the second flow path (4) extend in each case between at least one inflow-side inlet opening (5) and an outflowside outlet end (6), and having a valve body (8) on which a flow obstruction (9) disposed in the first flow path (3) is formed and which can be displaced from a first switching state into a second switching state against a return force, wherein flow can take place through the first flow path (3) in the first switching state and in the second switching state, and wherein the second flow path (4) is closed by the valve body (8) in the first switching state and is opened in the second switching state, characterised in that the valve body (8) comprises an elastic wall region (13) which, in the first switching state, extends straight in an extension direction and, in the second switching state, extends in a bent manner in the extension direction.
  2. Sanitary insert unit (1) as claimed in claim 1, characterised in that the flow obstruction (9) is formed as a throughflow opening (10) which preferably narrows in the flow direction and/or that the flow obstruction (9) is formed on an inflow-side end (17) of the valve body (8).
  3. Sanitary insert unit (1) as claimed in claim 1 or 2, characterised in that, on the downstream side, the valve body (8) is supported, via a support (11), on a support element (12) connected to the insert housing (2) and/or that the valve body (8) can be transferred from the first switching state into the second switching state by a change in shape and/or a change in length.
  4. Sanitary insert unit (1) as claimed in any one of claims 1 to 3, characterised in that the elastic wall region (13) is formed as a bent zone.
  5. Sanitary insert unit (1) as claimed in any one of claims 1 to 4, characterised in that the or one elastic wall region (13) is in the form of a hollow cylinder, preferably receiving the first flow path (3) in parts and/or that the valve body (8) is formed as a hollow body, preferably receiving the first flow path (3) in parts.
  6. Sanitary insert unit (1) as claimed in any one of claims 1 to 5, characterised in that the valve body (8) is formed in a pot-like and/or rotationally symmetrical manner and that the flow obstruction (9) is disposed on a preferably planar end face (15), in particular centrally with respect to the end face (15).
  7. Sanitary insert unit (1) as claimed in any one of claims 1 to 6, characterised in that the valve body (8) is produced preferably as one piece from an elastic material, in particular from silicone or a thermoplastic elastomer.
  8. Sanitary insert unit (1) as claimed in any one of claims 1 to 7, characterised in that a spring element and/or the inherent elasticity of the material used for the valve body (8) is/are provided as the return force for returning the valve body into the first switching state.
  9. Sanitary insert unit (1) as claimed in any one of claims 1 to 8, characterised in that a magnetic return force is provided to return the valve body (8) into the first switching state.
  10. Sanitary insert unit (1) as claimed in claim 9, characterised in that the plate (20) and/or the valve body (8) is/are produced from a magnetic or magnetizable material.
  11. Sanitary insert unit (1) as claimed in claim 9 or 10, characterised in that a preferably annular permanent magnet (33) is provided on the side of the plate (20) which faces away from the valve body (8) and/or the side of the valve body (8) which faces away from the plate (20).
  12. Sanitary insert unit (1) as claimed in any one of claims 1 to 11, characterised in that on an inflow-side end (17) of the valve body (8), a detent element (21) is formed which, in the first switching state, latches with a counterpart detent element (22) connected to the insert housing (2), and/or that the detent element (21) is formed extending around the valve body (8).
  13. Sanitary insert unit (1) as claimed in any one of claims 1 to 12, characterised in that the flow obstruction (9) on the valve body (8) is formed centrally in relation to at least one element from the group of: longitudinal axis (16) of the valve body (8), elastic wall region (13), detent element (21), guide element (18) and support (11) and/or that the or one support (11) of the valve body (8) comprises a reinforcement ring preferably extending around the first flow path (3).
  14. Sanitary insert unit (1) as claimed in any one of claims 1 to 13, characterised in that, in the second switching state, the valve body (8) lies against a stop element (23) which is connected to the insert housing (2), is preferably formed as a peg and/or limits a change in position and/or a change in shape between the first switching state and the second switching state, and/or that the stop element (23) forms a portion of the first flow path (3), which is open at least in the second switching state.
  15. Sanitary insert unit (1) as claimed in any one of claims 1 to 14, characterised in that a quantity limiter (26) is disposed upstream of the valve body (8) in the flow direction in the first flow path (3) and/or in the second flow path (4).
  16. Sanitary insert unit (1) as claimed in any one of claims 1 to 15, characterised in that the first flow path (3) issues at the outlet end (6) in a first outlet region (29) and the second flow path (4) issues at the outlet end (6) in a second outlet region (30), wherein the second outlet region (30) surrounds the first outlet region (29) transversely to a discharge direction.
  17. Sanitary insert unit (1) as claimed in any one of claims 1 to 16, characterised in that the second flow path surrounds the first flow path at least on the outlet side and in particular in such a way that the water being discharged from the first flow path is surrounded fully and/or in an opaque manner by the water being discharged from the second flow path.
EP13006068.4A 2013-02-02 2013-12-21 Sanitary insert unit Active EP2762234B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102013001931.1A DE102013001931B4 (en) 2013-02-02 2013-02-02 Sanitary insert unit

Publications (2)

Publication Number Publication Date
EP2762234A1 EP2762234A1 (en) 2014-08-06
EP2762234B1 true EP2762234B1 (en) 2018-10-03

Family

ID=49943101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13006068.4A Active EP2762234B1 (en) 2013-02-02 2013-12-21 Sanitary insert unit

Country Status (5)

Country Link
US (1) US9657467B2 (en)
EP (1) EP2762234B1 (en)
CN (2) CN203926928U (en)
DE (1) DE102013001931B4 (en)
TR (1) TR201816221T4 (en)

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DE102013001931B4 (en) * 2013-02-02 2016-03-31 Neoperl Gmbh Sanitary insert unit
DE202015000854U1 (en) * 2015-02-03 2016-05-04 Neoperl Gmbh Sanitary insert unit
DE202015000856U1 (en) * 2015-02-03 2016-05-04 Neoperl Gmbh Sanitary outlet element
DE202015001686U1 (en) * 2015-03-05 2016-06-07 Neoperl Gmbh aerator
DE202015001758U1 (en) * 2015-03-09 2016-06-10 Neoperl Gmbh Sanitary switching valve and assembly with such a switching valve
SE540044C2 (en) * 2015-03-23 2018-03-06 Ngl Teknik I Linkoeping Ab Adjustable flow limiter for a mixer and a förfarandeför to set the flow
GB2525504B (en) * 2015-04-02 2016-04-06 Drenched Ltd Atomiser nozzle
DE102016010842A1 (en) 2016-09-08 2018-03-08 Neoperl Gmbh Sanitary insert unit
DE202016005553U1 (en) * 2016-09-08 2017-12-11 Neoperl Gmbh Sanitary insert unit
DE102016011092A1 (en) 2016-09-15 2018-03-15 Neoperl Gmbh Sanitary outlet and sanitary fitting
DE102016011168A1 (en) * 2016-09-16 2018-03-22 Neoperl Gmbh Sanitary unit
DE102017203946B4 (en) * 2017-03-09 2019-11-07 Hansgrohe Se Swivel shower with shut-off valve
DE202017101442U1 (en) * 2017-03-13 2018-06-14 Neoperl Gmbh Sanitary installation part

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DE102005010551B4 (en) * 2005-03-04 2007-05-16 Neoperl Gmbh Sanitary functional unit
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DE102011120007A1 (en) * 2011-03-11 2012-09-13 Neoperl Gmbh Sanitary flow element for use in water outlet of water discharge device, has throttle body compressed in flow direction under pressure of flowing fluid such that compression narrows gap that controls flow rate of flow rate controller
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Also Published As

Publication number Publication date
CN203926928U (en) 2014-11-05
US20140217202A1 (en) 2014-08-07
DE102013001931B4 (en) 2016-03-31
CN103968109B (en) 2016-09-07
TR201816221T4 (en) 2018-11-21
EP2762234A1 (en) 2014-08-06
DE102013001931A1 (en) 2014-08-07
CN103968109A (en) 2014-08-06
US9657467B2 (en) 2017-05-23

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