EP1076136A2 - Sanitary build-in piece - Google Patents

Abstract

The insert part has an elastically deformable regulating body (3') arranged inside an outer casing (2), to define a control space (4). The opening cross-section of the control space can be altered according to the deformation of the regulating body due to the fluid pressure through the casing. The regulating body is arranged without play between supports (6) on opposite sides. The supports can be adjusted and fixed to form the space between the regulating body and the casing.

Description

The invention relates to a sanitary installation part for insertion in a liquid line.

Various sanitary fittings have already been created intended for insertion into a liquid line and for example as a flow regulator or as a backflow preventer are designed.

So you already know sanitary designed as flow rate controller Installation parts that have an elastic rubber ring in their controller housing have, whose ring opening penetrates a central control core. This elastic rubber ring, which depends on the The fluid pressure forming through the regulator housing is deformed, controls the clear cross section of the flow controller concerned and thus its liter output per unit of time in Dependence on the water pressure to a defined maximum value.

Since each of these previously known flow rate controllers on one certain maximum value is designed for different Maximum values to store different flow rate controllers. The due to the versatility with the manufacture of the known Volume control associated effort is therefore due to warehousing such different flow rate controllers increased even further.

Additional disadvantages can arise if the intended Area of application is the combination of such a flow regulator with a non-return valve required. You have already created a sanitary installation part in which such Flow controller with a separate backflow preventer summarized in a cartridge designed as a cartridge is (cf. DE 196 03 393 A1). This well-known sanitary installation part can be installed with little effort without incorrect assembly would be feared; by assembling a flow regulator and a backflow preventer has the known sanitary installation part, however, has a comparatively large overall length, that can limit the area of application of this component. About that In addition, the separate functional units of the known sanitary installation part composed of a large number of components be what with a correspondingly high manufacturing costs connected is.

There is therefore in particular the task of a sanitary installation part of the kind mentioned at the beginning to create that as versatile as possible usable and yet comparatively inexpensive to manufacture is.

For a sanitary installation part that acts as a flow regulator is formed and has an outer housing, in the housing interior an elastically deformable control body is arranged between itself and the housing inner wall delimits a control gap, the Passage cross-section through which depending on the at Flow through liquid pressure forming the outer housing deforming control body is changeable, is to solve the above task provided that the elastic control body in essentially free of play between on opposite sides of the Control body-provided control body contact elements arranged is and that these regulating body systems for preforming the in between arranged control body adjustable in their distance from each other and are definable.

The installation part according to the invention, which here as a flow regulator is designed as a control body has an elastic Shaped body that is essentially free of play between at least two control unit systems is arranged. To the control body preform regardless of the water pressure and the liter performance of this Flow controller per unit of time to the desired one The regulating body systems in their axial distance from each other adjustable and fixable. By Set the rule body attachments in an approximate Position is the elastic control body in the axial direction upset that it widens in its regular body size and that control gap provided between itself and the housing inner wall limited. The regulating body can control the water pressure achievable degree be compressed so that the flow rate controller acts as a flow limiter. Because of The adjustability according to the invention can easily be adjusted adapted to the situation found on site and accordingly can be used in many ways without having to stock up on many different installation parts would be necessary.

To the distance between the regulating body systems in the longitudinal direction of being able to change the flow regulator, for example possible that at least one of the control body systems adjustable held in the outer housing of the flow regulator according to the invention is. A particularly simple and preferred embodiment according to the invention provides, however, that the outer housing in a transverse to the flow direction oriented separation plane is divided and two has mutually adjustable housing parts in their axial distance. If you adjust the axial distance between the two housing parts, the axial distance between the two Control body systems changed.

It can be advantageous if the outer housing is a first Has housing part with an external thread that in an internal thread a second housing part can be screwed. By turning on complementarily shaped external or internal thread of the Housing parts, the axial distance between these housing parts and so that the distance between the control unit systems easily and with adjust with little effort.

Another proposal according to the invention, one as a sanitary Regarding control and safety unit designed installation part, provides in particular that an elastic in the outer housing deformable control and closing body is arranged, which control and Closing body against the flow direction in one Closed position can be pressed against a valve seat and in one Open position between yourself and the inside wall of the housing Control gap limited, the passage cross section through which as a function of that which forms when flowing through the outer housing The regulating and closing bodies deforming the liquid pressure can be changed is.

This installation part according to the invention takes on both the function a flow controller and the function of a backflow preventer. The built-in part according to the invention has one elastically deformable control and closing body, which in Housing interior of the outer housing is arranged. This molded body can counter the flow direction in a closed position be pressed against a valve seat that a backflow of the Liquid with the built-in part according to the invention Security is prevented. This molded body also serves but also as a control body, between itself and the inside wall of the housing limited a control gap, the passage cross section through which depending on the flow through the Outer housing forming fluid pressure deforming control and Closing body is changeable.

Since the molded body of the invention provided in the interior of the housing Installation part both as a closing body of a backflow preventer as well as a control body of a flow regulator is used, the built-in part according to the invention with little effort can be made from a few components. Since in the invention Installation part on separate flow regulator and backflow preventer can be dispensed with, the built-in part is characterized by a comparatively short installation length. The invention Installation part is therefore also in confined spaces versatile.

In order to ensure a more uniform deformation of the control system when pressurized Favor closing body and order a proper functioning of the installation part according to the invention independently to ensure the position of the control or closing body, it is advantageous if the rule or Closing body has a spherical shape in the unloaded state.

The control or closing body can already open minor pressure changes react easily and precisely when the control or closing body as an elastic hollow or Foam body is formed.

To be as high as possible in the installation part according to the invention To achieve reaction speed, it is advantageous if the control and closing body in the unloaded state in the flow direction essentially free of play between the valve seat or the same control or closing body system on the one hand and a preferably centrally arranged outflow-side rule or manner of reference Closing body system is arranged on the other hand.

So that the liquid flow through the installation part according to the invention at the defined maximum value of the liter output per unit of time can happen, it is advantageous if the housing inner wall between themselves and the control or closing body in Circumferential flow channels distributed limited. Seeing a preferred embodiment according to the invention that the Outer housing a non-circular, preferably a polygonal and in particular an essentially hexagonal clear cross section Has.

To ensure proper functioning of the installation part according to the invention To ensure it can be advantageous if the valve seat a front screen is connected upstream in the flow direction.

Further features of the invention result from the following Description of exemplary embodiments according to the invention in connection with the claims as well as the drawing. The individual characteristics can each individually or in groups in an embodiment according to the Invention to be realized.

Fig. 1

ein als Durchflußmengenregler ausgestaltetes sanitäres Einbauteil in einem Längsschnitt, wobei der Durchflußmengenregler ein aus zwei Gehäuseteilen bestehendes Reglergehäuse hat und wobei diese Gehäuseteile zur Vorformung eines im Gehäuseinneren befindlichen elastischen Regelkörpers relativ zueinander verstellbar und festlegbar sind,

Fig. 2

ein als sanitäres Regel- und Sicherungsteil ausgebildetes Einbauteil in einem Längsschnitt (vgl. Fig. 2a) und in einem Querschnitt (vgl. Fig. 2b) mit einem im Gehäuseinneren befindlichen elastischen Regel- und Schließkörper, wobei Figur 2 den Regel- und Schließkörper in unbelastetem Zustand zeigt,

Fig. 3

das sanitäre Einbauteil aus Figur 2 in einem Längsschnitt (vgl. Fig. 3a) und in einem Querschnitt (vgl. Fig. 3b), wobei der im Gehäuseinneren befindliche Regel- und Schließkörper in einer vom Flüssigkeitsdruck verformten Offenstellung dargestellt ist,

Fig. 4

das sanitäre Einbauteil aus Figur 2 und 3 in einem Längsschnitt (vgl. Fig. 4a) und einem Querschnitt (vgl. Fig. 4b), wobei der im Gehäuseinneren befindliche Regel- und Schließkörper bei einem gegenüber Figur 3 erhöhten Flüssigkeitsdruck dargestellt ist und

Fig. 5

das sanitäre Einbauteil aus Figur 2 bis 4 in einer Draufsicht auf dessen zuströmseitige Stirnfläche.

It shows:

Fig. 1

a sanitary built-in part designed as a flow rate controller in a longitudinal section, the flow rate controller having a controller housing consisting of two housing parts, and these housing parts being adjustable and fixable relative to one another for preforming an elastic control body located inside the housing,

Fig. 2

a built-in part designed as a sanitary regulating and securing part in a longitudinal section (cf. FIG. 2a) and in a cross section (cf. FIG. 2b) with an elastic regulating and closing body located inside the housing, FIG. 2 the regulating and closing body in shows unloaded condition,

Fig. 3

2 in a longitudinal section (cf. FIG. 3a) and in a cross section (cf. FIG. 3b), the control and closing body located inside the housing being shown in an open position deformed by the liquid pressure,

Fig. 4

the sanitary installation part from FIGS. 2 and 3 in a longitudinal section (cf. FIG. 4a) and a cross section (cf. FIG. 4b), the control and closing body located inside the housing being shown at an increased liquid pressure compared to FIG. 3 and

Fig. 5

the sanitary fitting from Figures 2 to 4 in a plan view of the inflow end face.

1 to 5 show two sanitary installation parts 1, 100 shown in a water pipe not shown here can be used.

Of the built-in parts 1, 100 is the sanitary built-in part 1 in FIG 1 designed as a flow regulator. The flow regulator 1 has an outer housing 2, in the housing interior elastically deformable control body 3 is arranged. This one as Hollow ball designed control body 3 bounded between themselves and the housing inner wall a control gap 4, the passage cross section through which depending on the flow of the outer housing 2 deforming liquid pressure Control body 3 is changeable.

As is clear from FIG. 1, the elastic control body 3 essentially free of play between two control unit systems 5, 6 kept the control body 3 in the area of its coaxial to Longitudinal axis L of the flow regulator 1 extending central axis central opposite sides. While the inflow-side control body system 5 here plate-shaped is the pin-shaped, downstream side Control body system 6 in the interior of the housing. The control unit systems 5, 6 are arranged preferably in a star shape Crosspieces 7 connected to the controller housing 2, so that the Liquid flow through between the connecting bars remaining free spaces designed as flow openings 8 can flow through.

As shown in Figure 1, the outer housing 2 of the flow regulator 1 oriented in a direction transverse to the flow direction Pf1 Partition plane divided into two housing parts 9, 10. During that upstream and connected to the control body system 5 Housing part 9 carries an external thread 11 is on the outflow side and housing 10 connected to the regulating body system 6 Internal thread 12 provided. The housing parts 9, 10 can by their complementarily shaped threads 11, 12 with each other in this way are screwed that the control body systems 5, 6 in their axial distance from each other are adjustable and fixable. there the housing parts 9, 10 in their position by means of a Sealing ring 13 held frictionally, which at the same time between the interlocking housing parts 9, 10 remaining gap seals upstream. By screwing the housing part 9 in the housing part 10 can the elastic control body 3 such be pressurized and compressed so that he is in his Circumferential area widens. By compressing the elastic Control body 3 in the flow direction Pf1 and its width across Flow direction Pf1 can be that between the control body 3 and narrow the control gap 4 provided in the housing inner wall the flow rate of the flow rate controller 1 to one Set the desired maximum value.

The control body 3 can be reached via the water pressure Dimension be compressed so that the flow controller 1 takes over the function of a flow limiter.

The flow regulator 1 shown here can easily adapted to the situation found on site and accordingly can be used in a variety of ways without the need for stockpiling different flow regulators with different maximum Flow rates would be required.

The flow rate controller 1 can with one on its upstream side Housing part 9 provided threaded connection 14 for example to the outlet mouthpiece of a water fitting, not shown here be connected; thus the downstream part of the housing 10 free to adjust the flow regulator 1 at any time accessible to easily adjust the flow regulator manually to be able to.

FIGS. 2 to 5 show a sanitary installation part 100, which is designed as a control and safety part and the functions a flow regulator and a backflow preventer includes. This also for insertion in a liquid line The provided installation part 100 is on a not shown here Water pipe in a recess designed as a cartridge holder a water connection in the area of a coupling or disconnection point insertable on the mouth side.

The sanitary installation part 100 according to FIGS. 2 to 5 has one Outer housing 2, in the interior of which an elastically deformable Control and closing body 3 'is provided. Like the rule body 3 of the built-in part 1 also has the regulating and closing body 3 ' the sanitary installation part 100 in the unloaded state a spherical shape and is designed as an elastic hollow body. In the figure 2 shown closed position is the control and closing body 3 'pressed against a valve seat 15, which is on the inflow side of the Control and closing body 3 'provided and as in the flow direction Pf1 is formed conically widening ring opening.

As can be seen from a comparison in particular of FIGS. 3a and 4a is limited, the control and closing body 3 'in its consequence of the water pressure reached open position between themselves and the Housing inner wall a control gap 4, the passage cross section through which depending on the flow through the Outer housing 2 forming fluid pressure deforming control and Closing body 3 'is changeable. Thus the tax gap 4 with the increased liquid pressure in FIGS. 4a and 4b narrowed and the liter capacity of the installation part 100 to one certain maximum value.

The comparison of Figures 1, 2a, 3a and 4a on the one hand and the Figures 2b, 3b and 4b on the other hand clearly shows that the housing inner wall the built-in parts 1, 100 between themselves and the rule Closing body 3, 3 'preferably in the circumferential direction uniformly distributed flow channels 16, which also limited a high water pressure and a strong compression of the rule or Closing body 3, 3 'a flow through the Ensure tap water through built-in parts 1, 100. The The outer housing 2 of the built-in parts 1, 100 has a non-circular, here hexagonal clear cross-section, so that in the corner areas of this Hexagonal shape form the flow channels 16. Here is the Control or closing body 3, 3 'in its outer diameter in the unloaded state approximately to that through the longitudinal central axis running smallest dimension of this clear cross section of the housing Installation parts 1, 100 adapted.

To ensure fast response times, the control and Closing body 3 'of the installation part 100 in the unloaded state essentially free of play between the valve seat 15 on the one hand and a downstream control body system 6 on the other hand. When the control and closing body 3 'is loaded with the in Flow pressure Pf1 acting water pressure becomes the control and Closing body 3 'increasingly against the control body system 6 pressed, which serves the control and closing body 3 'as an abutment.

The outer housing 2 of the mounting part 100 also has two housing parts 9, 10 on, which can be pushed into each other and locked.

If necessary, the outer housing of the installation part 100 can also be used Control body systems 6, 15 are designed so that these Control body systems 6, 15 are adjustable and lockable. To the Control and closing body 3 'captive to keep in the outer housing 2 and to settle dirt particles inside the housing To counteract the outer housing 2, the valve seat 15 of the Installation part 100, a front screen 17 in the flow direction Pf1 upstream. As is clear from the top view in FIG. 5, are the screen openings of the front screen 17 approximately honeycomb arranged to each other.

Since the molded body provided in the interior of the built-in part 100 3 'both as a regulating body of a flow rate regulator and serves as a closing body of a backflow preventer, that is sanitary Installation part 100 with little effort from a few components producible. Since in the installation part 100 on the combination of separate Flow regulator and backflow preventer are dispensed with can, the built-in part 100 is characterized by a comparative low installation height and characterized by its versatility.

Claims (10)

Sanitary installation part (1) for insertion into a liquid line, which is designed as a flow regulator and has an outer housing (2), in the interior of which an elastically deformable control body (3) is arranged, which has a control gap between it and the inner wall of the housing ( 4), the passage cross section of which can be changed by the regulating body (3) which deforms as a function of the liquid pressure which forms when it flows through the outer housing (2), characterized in that the elastic regulating body (3) is essentially free of play between on opposite sides of the regulating body ( 3) provided control body systems (5, 6) and that these control body systems (5, 6) for preforming the control body (3) arranged therebetween are adjustable and fixable in their distance from each other. Sanitary fitting according to claim 1, characterized in that the outer housing (2) in a transverse to the flow direction (Pf1) oriented parting plane is divided and two adjustable in their axial distance from each other Has housing parts (9, 10). Sanitary fitting according to claim 1 or 2, characterized in that the outer housing (2) has a first housing part (9) has an external thread (11), one in the internal thread (12) second housing part (10) can be screwed. Sanitary installation part (100) for insertion into a liquid line with an outer housing (2), inside the housing an elastically deformable control and closing body (3) it is provided which control and closing body (3) opposes against the flow direction (Pf1) in a closed position a valve seat (15) can be pressed and in an open position a control gap (4) between itself and the inside wall of the housing limited, the passage cross section through which in Dependence on the flow through the outer housing (2) forming regulating and closing body deforming liquid pressure (3 ') is changeable. Sanitary fitting according to one of claims 1 to 4, characterized characterized in that the control or closing body (3, 3 ') has a spherical shape in the unloaded state. Sanitary fitting according to one of claims 1 to 5, characterized characterized in that the control or closing body (3, 3 ') designed as an elastic hollow or foam body is. Sanitary fitting according to one of claims 1 to 6, characterized characterized in that the control or closing body (3, 3 ') in the unloaded state in the flow direction (Pf1) essentially free of play between the valve seat or the same control or closing body system (5, 15) on the one hand and a preferably centrally arranged one downstream control or closing body system (6) on the other hand is arranged. Sanitary installation part according to one of claims 1 to 7, characterized characterized in that the housing inner wall between itself and the control or closing body (3, 3 ') in the circumferential direction distributed flow channels (16) limited. Sanitary fitting according to one of claims 1 to 8, characterized characterized in that the outer housing (2) has a non-circular, preferably a polygonal and especially one in has essential hexagonal clear housing cross-section. Sanitary fitting according to one of claims 4 to 9, characterized characterized in that the valve seat (15) has a front screen (17) is connected upstream in the flow direction (Pf1).

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