DE202021101292U1 - Pressure reducer assembly with connector for connection to a pipeline - Google Patents

Abstract

A water fitting assembly (10) comprising
(a) a housing (12) having an inlet (18) and an outlet (20);
(b) a fitting device arranged between the inlet and the outlet and having a functionality; and
(c) a connection part (22) which can be factory-sealed and preassembled at the inlet and/or at the outlet for connecting a pipeline and/or other components (46) of a water installation; characterized in that
(d) the housing (12) is made of pressure-resistant plastic;
(e) the connector (22) is made of metal; and
(f) a threaded component (40) made of metal interacts with the connecting part (22), with which the pipeline and/or further component (46) of a water installation can be connected in a sealing manner.

Description

technical field

1. (a) ein Gehäuse mit einem Einlass und einem Auslass;
2. (b) eine zwischen Einlass und Auslass angeordnete Armatureneinrichtung mit einer Funktionalität; und
3. (c) ein am Einlass und/oder am Auslass werkseitig abdichtend vormontierbares Anschlussteil zum Anschließen einer Rohrleitung und/oder weiteren Komponenten einer Wasserinstallation.

The invention relates to a water fitting assembly containing

1. (a) a housing having an inlet and an outlet;
2. (b) a fitting device arranged between the inlet and the outlet and having a functionality; and
3. (c) a connector that can be factory-sealed at the inlet and/or at the outlet for connecting a pipeline and/or other components of a water installation.

The invention also relates to a connection part for the sealing connection of a water fitting arrangement with a housing made of plastic to a pipeline and/or to another component of a water installation.

An example of a fitting device with a functionality is a pressure reducer. The functionality of a pressure reducer is to regulate the pressure to a desired value. Other fittings are valves, gauges, shut-offs and the like.

State of the art

The pamphlets DE 10 2009 104 413 A1 , DE 20 2009 013 661.2 , DE 10 2007 011 228 A1 and DE 20 2011 051 425 U1 disclose applicant's various pressure reducer assemblies. Several pressure reducers are described on the applicant's website www.syr.de under the item "Pressure regulation". The pressure reducers typically include a housing with a housing socket. A usually funnel-shaped pressure reducer insert is used in the housing socket. A screw cap with a loading spring is screwed onto the housing socket. A control chamber with outlet pressure is delimited by a control diaphragm which, in the known arrangements, is clamped between the end of the screw cap on the housing side and a shoulder on the housing socket. A partition wall is provided within the housing, separating an inlet chamber from an outlet chamber. Inlet pressure prevails in the inlet chamber. There is outlet pressure in the outlet chamber. The funnel-shaped pressure reducer insert forms a valve seat. A valve closing body is connected to a valve spindle which is displaceably guided in the pressure reducer insert. The interior of the regulator cartridge is connected to the inlet chamber. As a result, inlet pressure prevails both upstream of the valve within the pressure reducer insert and in the area on the inlet side outside of the pressure reducer insert. The pressure is set using a screw cap with a mechanical outlet pressure indicator.

The known arrangements have a fitting housing made of brass, gunmetal or another metal or metal alloy which can withstand high pressures. These materials are expensive.

Inexpensive plastics are known which are suitable for use as fitting housings. Out of DE 20 2006 016 581 U1 For example, a safety valve arrangement is known, the housing of which is made of plastic and in which a connection part made of metal, which can be pre-assembled in the factory to form a seal, is provided on the inlet connection piece for connecting a pipeline.

The problem with using a fitting housing made of plastic is that the installer handles it in the same way as metal. The use of pipe wrenches, for example, and the exertion of large forces on the plastic harbors the risk of damaging the housing.

Manufacturing a plastic housing requires tools that are expensive. Different pipe diameters require different plastic housings. Thats expensive.

Disclosure of Invention

• (d) das Gehäuse aus druckfestem Kunststoff gefertigt ist;
• (e) das Anschlussteil aus Metall gefertigt ist; und
• (f) eine Gewindekomponente aus Metall mit dem Anschlussteil zusammenwirkt, mit welcher die Rohrleitung und/oder weitere Komponente einer Wasserinstallation abdichtend anschließbar ist.

It is the object of the invention to create a more cost-effective water fitting arrangement. According to the invention, the object is achieved in an arrangement of the type mentioned in that

• (d) the housing is made of flameproof plastic;
• (e) the connector is made of metal; and
• (f) a threaded component made of metal interacts with the connection part, with which the pipeline and/or other component of a water installation can be connected in a sealing manner.

In such an arrangement, a connection part is provided on the housing, which interacts with a threaded component. In the simplest case, the threaded component is a union nut. To connect, a tool, for example a pipe wrench, is placed on the connection part and a tool on the threaded component. Then the thread is tightened. The two components are made of metal and the handling is familiar to the staff. There is no risk of damaging the plastic housing. Different pipe diameters can be connected with the same plastic housing.

In one embodiment of the invention, a sealing ring is provided, which is pressed onto the connection part when the threaded component is screwed on. The sealing ring can in particular be formed by a clamping ring made of a metal or a metal alloy. When the threaded component is screwed to the connection part, the housing is fixed to the pipeline and sealed against it at the same time.

In a particularly preferred embodiment of the invention, it is provided that the connection between the housing and the connection part is freely rotatable about the connection axis. In particular, it can be provided that the inlet and outlet are aligned, so that the housing can be rotated about the common axis. Then the position of the pressure reducer can easily be adjusted to the environment.

A seal is preferably provided between the connection part and the housing. The segment ring does not have to assume any sealing function.

In a simple embodiment of the invention, it is provided that the threaded component is formed by a nut for connecting a pipeline. Both inlet and outlet can be installed in a pipeline with fitting and nut.

In a specific, exemplary embodiment of the invention, it is provided that the fitting device is a pressure reducer, a shut-off valve, a safety valve or a combination thereof. The pressure reducer can be formed, for example, by a pressure reducer insert that can be inserted into a housing receptacle arranged between the inlet and the outlet. It goes without saying, however, that any other design can also be used for a pressure reducer, such as a pressure reducer cartridge or a piston pressure reducer.

1. (a) das Anschlussteil am gehäuseseitigen Ende auf der Innenwandung eine Ringnut aufweist;
2. (b) der Einlass und/oder Auslass von einem Stutzen gebildet ist, der mit einer Ringnut auf der Außenseite versehen ist, und
3. (c) ein an einer Stelle unterbrochener Segmentring in der Ringnut des Anschlussteils vorgesehen ist, welcher sich beim Aufstecken auf den Stutzen aufweitet und in der Ringnut am Stutzen einrastet.

In a further embodiment of the invention it is provided that

1. (a) the connecting part has an annular groove on the inner wall at the end on the housing side;
2. (b) the inlet and/or outlet is formed by a nozzle provided with an annular groove on the outside, and
3. (c) a segment ring that is interrupted at one point is provided in the annular groove of the connecting part, which expands when it is pushed onto the socket and engages in the annular groove on the socket.

In this embodiment of the invention, the connection part is pushed onto the connection piece of the housing. A segmented ring is a ring that is broken. When it is pushed onto the socket, it expands and finally snaps into the ring groove on the socket. After that, the connection part can no longer be removed from the socket without damaging it. When installing the pressure reducer, it is therefore practically impossible to remove the factory-installed connector from the plastic housing. The arrangement is designed in such a way that the connection part is freely rotatably attached to the socket. Furthermore, an axial play is preferably provided, which allows length fluctuations of the housing.

1. (a) das Anschlussteil am gehäuseseitigen Ende außen eine umlaufende Ringnut aufweist;
2. (b) der Einlass und/oder Auslass von einem Stutzen gebildet ist, in welchen das Anschlussteil einsteckbar ist und welcher mit einem Segmentschlitz versehen ist; und
3. (c) eine Spange oder Klammer vorgesehen ist, welche durch den Segmentschlitz auf das Anschlussteil aufschiebbar ist und welche sich beim Aufschieben auf den Stutzen aufweitet und in der Ringnut am Stutzen einrastet.

In an alternative embodiment of the invention it is provided that

1. (a) the connecting part has a circumferential annular groove on the outside at the end on the housing side;
2. (b) the inlet and/or outlet is formed by a socket into which the connection part can be inserted and which is provided with a segment slot; and
3. (c) a clasp or clamp is provided, which can be pushed onto the connection part through the segment slot and which widens when pushed onto the socket and engages in the annular groove on the socket.

With this variant, the connection part is inserted into the housing socket. The housing connector has a segment slot. This is a slit that extends circumferentially across part of the neck. A clip or clip can be pushed onto the inserted part of the connection part through the segment slot. The connection part has an annular groove in which the clasp or clip engages when the annular groove is at the level of the segment slot. In this way, the connection part can be freely rotatably fixed in the axial direction.

1. (a) die Spange oder Klammer auf der der Ringnut zugewandten Seite einen Zahn, Vorsprung oder anderes Rastelement aufweist;
2. (b) der Stutzen im Bereich der Ringnut eine Verzahnung aufweist, und
3. (c) das Material, die Form des Rastelements und die Form der Verzahnung derart ausgebildet sind, dass das Rastelement leicht einrastet, aber eine manuelle Verdrehung ohne Beschädigung des Materials erlaubt.

In a further embodiment of the invention it is provided that

1. (a) the clip or clip has a tooth, projection or other latching element on the side facing the annular groove;
2. (b) the socket has teeth in the area of the annular groove, and
3. (c) the material, the shape of the latching element and the shape of the teeth are designed in such a way that the latching element latches easily but allows manual rotation without damaging the material.

A flat serration and a slightly yielding detent allow the faucet body to remain in the selected position and not twist due to gravity or minor forces such as accidental touching. However, the gearing enables free rotation.

In an alternative embodiment of the invention, it can be provided for one or both connections that the threaded component forms the socket of a further fitting housing instead of a nut. In particular, the connecting piece can be releasably connected to the other fitting housing made of plastic. In this way, different fitting housings, all of which are made of plastic, can be connected to one another in a modular manner. Connecting parts and threaded components - nuts or sockets - made of metal are only used at the connection points that are important for the use of tools. For example, the further fitting housing can have a ball valve or some other shut-off.

Refinements of the invention are the subject matter of the dependent claims. Exemplary embodiments are explained in more detail below with reference to the accompanying drawings.

character list

• 1 is a side view of a pressure reducer assembly with a plastic housing, as well as a metal connector and union nut.
• 2 is a vertical section through the arrangement 1 .
• 3 12 is a perspective view of the assembly of FIG 1 with disconnected connector.
• 4 12 is a side view of the pressure reducer assembly 1 with an upstream barrier.
• 5 is a vertical section through the arrangement 4 .
• 6 is a section through the connector with union nut 1 in a separate representation before plugging onto the plastic housing.
• 7 is an exploded view of the parts 6 .
• 8th is a side view of a fitting assembly with pressure reducer, shut-off valve and safety valve according to a third embodiment.
• 9 is a vertical section through the arrangement 8th .
• 10 Figure 13 is a vertical section through the connection area of the assembly 8th perpendicular to the connection axis.
• 11 is a detail off 9 and illustrates the connection area with a fitting.
• 12 is a detail off 10 with a locking mechanism.
• 13 Figure 12 is an exploded view of the assembly 8th .

definitions

In this description and in the attached claims, all terms have a meaning familiar to the person skilled in the art, which can be found in the specialist literature, standards in particular DIN EN 806-1 and DIN EN 1717 and the relevant websites and publications, in particular of a lexical nature, for example www.Wikipedia.de, www.wissen.de or www.techniklexikon.net, the competitors, research institutes, universities and associations, for example the German Association of Gas and Water Specialists e.V. or the Association of German Engineers. In particular, the terms used do not have the opposite meaning of what the person skilled in the art infers from the above publications.

Furthermore, the following meanings are used as a basis for the terms used: barrier: is any type of device that completely or partially blocks a fluid flow. Typical shut-offs are ball valves or valves. fitting: is a component for installation in or on a pipeline or other fluid installation to shut off, regulate or influence material flows. A fitting can be designed in one piece or in several pieces and is installed at a point in or on the pipeline. Fittings are, for example and not conclusively: connection devices, connection fittings, main shut-off fittings, maintenance fittings, throttle fittings, extraction points, extraction fittings, drain fittings, safety fittings, safety fittings and control fittings. outlet pressure Pressure in the outlet and all areas directly connected to the outlet within an enclosure outlet is an outlet-side opening in a housing from which a material flow can flow out. The opening can in particular be connected to a pipe or another fitting or open freely to the atmosphere. axial is the direction of the axis of rotation of fully or partially rotationally symmetrical components, such as tubes or elongated housings. In the case of components without rotational symmetry, it is the main flow direction in a component section. drilling is any kind of connection between two cavities, as well as blind holes. Print force per unit area pressure reducer is a fitting for setting a selected pressure on the components behind it. passage is a connection that enables material flows. inlet pressure Pressure in the inlet and all areas directly connected to the inlet within an enclosure. inlet is an inlet-side opening in a housing into which a material flow can flow. The opening can in particular be connected to a pipe or another fitting or open freely to the atmosphere. Feather elastic component that can be deformed, in particular but not exclusively metallic helical springs Housing Limitation of substances, components, instruments and measuring devices to the outside. A housing can be designed in one piece or in several parts from several connected housing parts and consist of one or more materials. mother Machine element for making detachable connections. The nut is a hollow body with an internal thread. radial perpendicular to an axial direction. Pipe Hollow body made of cylindrical sections. Typically used as a conduit. shoulder Transition of sections of different diameters or thicknesses. Support Edge or transition piece at an opening. Valve Component for shutting off or regulating the flow of fluids.

Description of the exemplary embodiments

1st embodiment (Fig. 1-3 and Fig. 6-7)

1 until 3 show a generally designated 10 pressure reducer assembly. The pressure reducer assembly has a housing 12 made of plastic. The housing 12 has a socket 14 into which a pressure reducer insert 16 is inserted. Pressure reducer inserts are generally known and therefore do not need to be explained in more detail here. The remainder of the housing 12 is generally tubular with an inlet 18 and a coaxial outlet 20.

A metallic connection part 22 is attached to the inlet 18 and the outlet 20 in each case. The connector 22 is in 6 and 7 shown again in detail. In the part of the connection part 22 on the housing side, an annular groove 24 is provided on the inside. A segmented ring 26 sits loosely in the annular groove 24. The segmented ring 24 does not extend over the full angle of 360°, but is interrupted over a small angular range 28. this is in 7 to recognize.

A further annular groove 30 is provided further inwards on the inside of the connection part 22 . A sealing ring 32 is seated in the further annular groove 30. Behind the annular groove 30, an annular projection 34 is formed on the inside of the connecting part 22. The annular projection 34 forms a stop.

The connecting part 22 is pushed onto the socket-shaped inlet 18 or the outlet 20 up to the stop 34 during manufacture in the factory. The diameter of segment ring 26 adapts to the outer diameter of inlet 18 and widens accordingly. In the end position, when the connecting part 22 is plugged on approximately up to the stop 34 , the segmented ring 26 snaps into an annular groove 36 on the outside of the socket-shaped inlet 18 . this is in 2 and the annular groove 36 in 3 to recognize. The diameter of the segmented ring 26 is thereby reduced. Once it has been attached and locked in place, the connection part 22 can practically no longer be detached from the plastic housing 12 .

The connecting part 22 is provided with an external thread 38 on the side facing away from the housing 12 . A union nut 40 is screwed onto the external thread 38 . When the union nut 40 is screwed on and tightened, a clamping ring 42 is pressed. The union nut 40 is slightly tapered on the side facing away from the housing 12 and thus holds the clamping ring 42 in place. 6 shows the union nut 40 loosely screwed on before pressing. 2 shows the compressed state.

To connect a pipe (not shown), the pipe is inserted into the connection part 22 pre-assembled on the housing 12 and the union nut 40 is tightened. For this purpose, the otherwise freely rotatable connection part 22 must be fixed with a tool, for example an open-end wrench or a pipe wrench. Then the union nut 40 can be tightened with a second tool. The clamping ring 42 is pressed onto the tube and the assembly is fixed and sealed. The clamping ring 42 is made of a metal alloy that does not tear when pressed. As in 2 It is easy to see that both the inlet 18 and the outlet 20 are provided with a connection part 22 , a clamping ring 42 and a union nut 40 in the present exemplary embodiment.

2nd embodiment (Fig.4 and Fig.5)

4 and 5 show an alternative embodiment of the invention. A ball valve 46 is installed there between the otherwise identical housing 12 and the inlet 18 with the connection part 22 . The ball valve 46 is seated in a housing 48 which, like the housing 12, is made of plastic. The thread of an alternative connection part 44 is screwed into the housing 48 . The alternative connection part 44, like the connection part 22, is pushed onto the connection piece of the housing 12 with a segmented ring. In this way, a plastic housing 12 or 48 can be used in a modular manner. Only the connecting pieces 22 relevant to the installation are made of metal and can be handled in the usual way.

3rd embodiment (Fig.8 - 12)

8th until 12 10 show an alternative embodiment of a faucet assembly, indicated generally at 110. FIG. As with the other embodiments, the faucet assembly has a housing 112 made of plastic. A ball valve 102, a pressure reducer 116 and a safety valve 106 are shown here as examples of functionality. It goes without saying that any other functionality can also be used and these functionalities are only shown as examples.

The housing 112 has a socket 114 into which a pressure reducer insert 116 is inserted. The housing 112 has an inlet 118 and a coaxial outlet 120 .

A metallic connecting part 122 is inserted into the inlet 118 and the outlet 120 in each case. The connector 122 is in 10 shown again in detail. An annular groove 124 is provided on the outside in the part of the connection part 122 on the housing side. A clip 126 engages in the annular groove 124. The clip 126 is open at the side. this is in 8th and 12 to recognize.

A further annular groove 130 is provided on the outside of the connection part 122 further inwards. A sealing ring 132 is seated in the further annular groove 130. An annular projection 134 is integrally formed on the inner wall of the socket-shaped inlet 118 or outlet 120. FIG. The annular projection 134 forms a stop up to which the connection part 122 can be inserted into the inlet 118 or outlet 120 .

The connecting part 122 is inserted in the factory up to the stop 134 in the socket-shaped inlet 118 or the outlet 120 . The clip 126 is slid onto the annular groove 124 through a circumferentially extending slot 140 in the inlet 118 and outlet 120, respectively. this is in 13 clearly visible.

The clip 126 engaged in the annular groove 124 prevents an axial movement of the connection part 122 relative to the inlet 118 or outlet 120. Once pushed on and engaged, the connection part 122 can be detached from the plastic housing 112 using a special tool. To do this, the tool grips a recess in the clamp. The clip 126 can be pulled off through the slot 140 with the tool. Then the connector 122 can be removed.

On the side facing away from the housing 112, the connection part 122 is formed in the same way as the first or the second exemplary embodiment. A pipe can also be connected in the same way using a clamping ring.

In the present exemplary embodiment, the connecting part 122 is provided with a corrugation or flat toothing 142 in the area of the annular groove 124 . The clip 126 has a tooth 144 projecting inwardly. After clip 126 is slid through slot 140 onto connector 122, tooth 144 snaps into serration 142. this is in 10 and 12 clearly visible. Serrations 142 are flat and still permit rotation of connector 122 relative to housing 112. However, the serrations prevent inadvertent rotation and provide sufficient resistance to rotation so that the housing remains in the desired position once positioned became.

The terms "top", "bottom", "right" and "left" refer exclusively to the attached drawings. It is understood that claimed devices may also take a different orientation. The term “including” and the term “comprising” mean that further components not mentioned can be provided. The term "essentially", "predominantly" and "predominantly" includes all features that have a property or content in majority, i.e. more than all other components or properties of the feature mentioned, i.e. with two components, for example more than 50%.

The exemplary embodiments explained above serve to illustrate the invention claimed in the claims. Features that are disclosed together with other features can generally also be used alone or in combination with other features that are explicitly or implicitly disclosed in the text or in the drawings in the exemplary embodiments. Dimensions and sizes are given as examples only. Suitable ranges are evident to the person skilled in the art from his specialist knowledge and therefore do not need to be explained in more detail here. The disclosure of a specific embodiment of a feature does not mean that the invention should be limited to this specific embodiment. Rather can such a feature can be realized by a variety of other configurations familiar to those skilled in the art. The invention may, therefore, be embodied not only in the forms set forth, but in all forms falling within the scope of the appended claims.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 102009104413 A1 [0004]
• EN 202009013661 [0004]
• DE 102007011228 A1 [0004]
• DE 202011051425 U1 [0004]
• DE 202006016581 U1 [0006]

Claims (16)

A water fitting assembly (10) comprising (a) a housing (12) having an inlet (18) and an outlet (20); (b) a fitting device arranged between the inlet and the outlet and having a functionality; and (c) a connection part (22) which can be factory-sealed and preassembled at the inlet and/or at the outlet for connecting a pipeline and/or other components (46) of a water installation; characterized in that (d) the housing (12) is made of pressure-resistant plastic; (e) the connector (22) is made of metal; and (f) a threaded metal component (40) interacting with the connecting part (22) with which the pipeline and/or other component (46) of a water installation can be connected in a sealing manner. Water fitting arrangement according to claim 1 characterized by a sealing ring (42) which is pressed onto the connection part (22) when the threaded component (40) is screwed on. Water fitting arrangement according to claim 2 , characterized in that the sealing ring is formed by a clamping ring (42) made of a metal or a metal alloy. Water fitting arrangement according to one of the preceding claims, characterized in that the connection between the housing (12) and the connection part (22) is freely rotatable about the connection axis. Water fitting arrangement according to claim 4 , characterized in that the inlet (18) and outlet (22) are aligned so that the housing (12) is rotatable about the common axis. Water fitting arrangement according to one of the preceding claims, characterized by a seal (32) between the connection part (22) and the housing (12). A water fitting assembly as claimed in any one of the preceding claims, characterized in that the threaded component (40) is formed by a nut for connecting a pipe. Water fitting arrangement according to one of the preceding claims, characterized in that the fitting device is a pressure reducer, a shut-off valve, a safety valve or a combination thereof. Water fitting arrangement according to claim 8 , characterized in that the pressure reducer is formed by a pressure reducer insert (16) which can be inserted into a housing receptacle (14) arranged between the inlet (18) and the outlet (20). Water fitting arrangement according to one of the preceding claims, characterized in that (a) the connecting part (22) has an annular groove (24) on the inner wall at the housing-side end; (b) the inlet (18) and/or outlet (20) is formed by a nozzle provided with an annular groove (36) on the outside; and (c) a segment ring (26) interrupted at one point is provided in the annular groove (24) of the connecting part (22), which widens when it is pushed onto the socket and engages in the annular groove (36) on the socket. Water fitting arrangement according to one of Claims 1 until 9 , characterized in that (a) the connecting part has a peripheral annular groove on the outside at the end on the housing side; (b) the inlet and/or outlet is formed by a socket into which the connection part can be inserted and which is provided with a segment slot, and (c) a clip or clamp is provided which can be pushed onto the connection part through the segment slot and which expands when pushed onto the socket and engages in the ring groove on the socket. Water fitting arrangement according to claim 11 , characterized in that (a) the clasp or clip has a tooth, projection or other latching element on the side facing the annular groove; (b) the socket has teeth in the area of the annular groove, and (c) the material, the shape of the latching element and the shape of the teeth are designed in such a way that the latching element engages easily, but allows manual rotation without damaging the material. Water fitting arrangement according to one of the preceding claims, characterized in that the threaded component forms the socket of a further fitting housing (48). Water fitting arrangement according to Claim 13 , characterized in that the connecting piece can be releasably connected to the further fitting housing (48) made of plastic. Water fitting arrangement according to Claim 13 or 14 , characterized in that the further fittings housing (48) has a ball valve (46) or another shut-off. Connection part for the sealing connection of a water fitting arrangement (10) with a housing (12) made of plastic to a pipeline and/or to another component of a water installation, the connection part (22) being made of metal and a threaded component (40) made of metal having the Connection part (22) interacts with which the pipeline and/or other components of a water installation can be connected in a sealing manner.

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