EP3473384A1 - Mounting device for creating a press-fitting connection between a fitting kit and a pipe section - Google Patents

Abstract

In the case of the mounting device ( 1 ) created for producing a press connection between a fitting kit (8) and a pipe section (9, 9 ') , the fitting kit (8) initially comprises a sleeve-like intermediate piece (81) which is used for internally, axially inserted receiving a connection end (99) of the pipe section (9,9 ') is determined. Another component of the fitting assembly (8) is a press ring (82) for pushing by means of the mounting device (1) via the intermediate piece ( 81) with the effect of the formation of a pressure-tight and mechanically strong press connection between the connection end (99) and the intermediate piece ( 81) is provided. The mounting device (1) has a first device half (11) and a complementary, substantially identical second device half (12) , which are in principle of a half-shell shape, are separated from each other in the storage state and for achieving the operating state coupling means (24, 44, 24 ', 44', 24 ", 44", 73, 73 ', 73 ") for releasable assembly with their facing concave sides.

Description

Field of application of the invention

The invention relates to a mounting device for producing a press connection between a fitting kit and a pipe section. Part of the Fittingbausatzes is first a sleeve-like intermediate piece, which is intended for internal, axially inserted receiving a terminal end of the pipe section. Further, the fitting kit comprises a press ring, which is provided for pushing by means of the mounting device via the intermediate piece - with the effect of the emergence of a pressure-tight and mechanically strong press connection between the connection end and the intermediate piece.

State of the art

Subject of the US 5,398,394 is a hydraulic pressing tool for making a press connection between a fitting kit and a pipe piece. The tool has a U-shaped, fixed first jaw, on which the adapter of the fitting kit is held. The press ring is pressed by a U-shaped, axially advanceable second jaw on the intermediate piece in which the pipe piece is inserted, whereby the press connection is formed. The constructions according to US 5,592,726 and WO 2016/179 070 A1 are based on the same principle. In the in the WO 2012/021 545 A1 described kinematics vice versa, here the pierced by the pipe section press ring is fixed in a fixed jaw and pressed from the fitting kit, the intermediate piece, in which the end of the pipe piece, stuck by an axially movable claw in the stationary press ring. These tools are likely to be suitable only for the processing of small pipe dimensions and leave leakage risks, since the force approach to the pressing rings is not radially comprehensive.

The US 5,694,670 relates to a pressing tool for the same purpose, in which a first interchangeable pair of jaws can be mounted on a fixed bearing, which serves for the fixed gripping around the intermediate piece of a fitting kit. To insert the intermediate piece, the upper jaw is removable or swung up to secure this subsequently in the closed position. An axially hydraulically displaceable bearing with an attached, exchangeable second pair of jaws is intended for engaging behind and pushing the press ring on the intermediate piece with simultaneous pressing of the inserted pipe section. Also from the second pair of jaws, the upper jaw can be swung open and then locked in the closed position to first insert the pipe section with the attached press ring. The exchangeable pairs of jaws allow the processing of various tube dimensions and fitting designs.

In the CH 707 389 A2 Also disclosed is a hydraulic press tool for making a press fit between a fitting kit and a pipe piece. The two mirror-image housing parts are hinged together by means of two, over the entire width of the tool extending joints. The tool can be locked in the closed position. Interchangeable inserts are provided for installation in the tool to allow the compression of several pipe dimensions.

That in the US 6,199,254 B1 proposed hinged pressing tool consists of two interconnected by means of hinged half-shell-shaped housings, which can be fixed with a umzuschlingenden band for performing the pressing operation in a closed position. Due to the relatively light construction of this tool, the suitability is limited to smaller pipe dimensions.

Object of the invention

In a further development of the known prior art, it is an object of the invention to provide a hydraulically driven mounting device for producing a reliable press connection between a fitting kit and a To create a pipe section that allows a practical handling of the preparation to the completion of the pressing process, even when processing larger pipe dimensions. Furthermore, the mounting device to be provided should be used efficiently even in confined spaces.

Overview of the invention

• ein hülsenartiges Zwischenstück, das zur innerlichen, axial eingeführten Aufnahme eines Anschlussendes des Rohrstücks bestimmt ist; und
• einen Pressring, der zum Aufschieben mittels der Montagevorrichtung über das Zwischenstück mit der Wirkung des Entstehens einer druckdichten und mechanisch belastbaren Pressverbindung zwischen dem Anschlussende und dem Zwischenstück vorgesehen ist.

Die Montagevorrichtung weist eine erste Vorrichtungshälfte und eine dazu komplementäre, weitgehend identische zweite Vorrichtungshälfte auf, die jeweils im Prinzip von halbschalenförmiger Gestalt sind, im Verwahrzustand voneinander getrennt vorliegen und für die Erzielung des Betriebszustands Kupplungsmittel zum lösbaren Zusammenfügen mit ihren zueinander gerichteten konkaven Seiten besitzen.In the assembly device designed to make a press fit between a fitting kit and a pipe piece, the fitting kit includes:

• a sleeve-like intermediate piece, which is intended for internal, axially inserted receiving a terminal end of the pipe section; and
• a press ring, which is provided for pushing by means of the mounting device via the intermediate piece with the effect of the emergence of a pressure-tight and mechanically strong press connection between the connecting end and the intermediate piece.

The mounting device comprises a first device half and a complementary, substantially identical second device half, which are each in principle of a half-shell shape, separated from each other in the storage state and have to achieve the operating state coupling means for releasable assembly with their facing concave sides.

The following are particularly advantageous details of the mounting device according to the invention: The amount of coupling means includes a pair of first hinge contours on each device half to achieve an operating condition with assembled device halves, and each device half has a pair of first hinge parts on which the respective first hinge contour is provided. In the state of assembled device halves, all first hinge contours lie on an axially extending axis of rotation. In the first hinge contours of the two device halves, at least one axle element can be used as a releasable connecting member along the axis of rotation about which both device halves are movable independently of one another.

The amount of the coupling means includes a pair of second hinge contours on each device half to achieve an operating state with assembled device halves in locked closed position, and each device half has a pair of second hinge parts on which the respective second hinge contour is provided. In the state of assembled device halves, in the closed position, all the second hinge contours are aligned with each other. In this case, at least one closing element can be used as a releasable locking member in the second hinge contours of both device halves, whereby both device halves are locked in the closed position against each other.

The amount of coupling means includes a third hinge contour provided on one of the respective first hinge parts on each device half to provide an operational state with assembled device halves in a partially opened, spread locking position on each device half. In the state of assembled device halves, in partially opened, spread locking position, both third hinge contours are aligned with each other. In the third hinge contours of both device halves, a releasable holding element can be used, whereby both device halves, in partially open, spread position, are locked against each other. Here, the second hinge contours of both device halves remain unpopulated. For this operating state, the amount of the coupling means also includes on each device half a stop member which is provided on one of the respective first hinge parts. With the widest spread of the two device halves both stop elements abut each other and thereby limit a maximum opening angle between the two device halves. In this case, the stop elements and the third hinge contours of both device halves are aligned with each other, and the second hinge contours of both device halves remain unpopulated.

• von zweiter Vorrichtungshälfte das Paar erster Scharnierteile zwischen dem zugehörigen Paar erster Scharnierteile der ersten Vorrichtungshälfte zu liegen kommt; und
• von erster Vorrichtungshälfte das Paar zweiter Scharnierteile zwischen dem zugehörigen Paar zweiter Scharnierteile der zweiten Vorrichtungshälfte zu liegen kommt.

The first hinge parts and the second hinge parts on the first device half are to the first and second hinge parts on the second device half in their pairings as first hinge parts and second hinge parts in the extension of the axis of rotation offset from each other so that when assembled device halves:

• from the second device half, the pair of first hinge parts comes to rest between the associated pair of first hinge parts of the first device half; and
• from the first device half, the pair of second hinge parts come to rest between the associated pair of second hinge parts of the second device half.

• zum Zusammenfügen der beiden Vorrichtungshälften an den jeweils zu zweit kongruent zusammenkommenden ersten Scharnierkonturen, wobei von den vier Steckbolzen zwei als Achselemente zum Einsatz kommen; oder
• zum Zusammenfügen der beiden Vorrichtungshälften in verriegelter Schliessposition an den jeweils zu zweit kongruent zusammenkommenden ersten Scharnierkonturen und zweiten Scharnierkonturen, wobei von den vier Steckbolzen zwei als Achselemente und zwei als Schliesselemente zum Einsatz kommen; oder
• zum Zusammenfügen der beiden Vorrichtungshälften in partiell geöffneter, gespreizter Arretierposition an den jeweils zu zweit kongruent zusammenkommenden ersten Scharnierkonturen und dritten Scharnierkonturen, wobei von den vier Steckbolzen zwei als Achselemente und einer als Halteelement zum Einsatz kommen.

For releasable connections a total of four locking pins are provided, namely:

• for joining the two device halves to the first hinge contours converging in pairs for each other, two of the four locking pins being used as axle elements; or
• for joining the two device halves in the locked closed position to the first two hinge contours and second hinge contours converging in pairs, two of the four locking pins being used as axle elements and two being used as closing elements; or
• for joining the two device halves in a partially opened, spread locking position to the first two mutually congruent first hinge contours and third hinge contours, of the four locking pins two as axle elements and one as a holding element are used.

To provide temporarily unused socket pin, the mounting device depot forms. The locking pins are formed with a locking means to prevent the unintentional release of the hinge contours or depot forms. The depot forms are preferably formed on the front side of the mounting device, on the side of the third hinge contours, as insertion holes.

• ein feststehendes Kolbenlager mit Hydraulikanschluss und Kolbennestern, in denen Hydraulikkolben ruhen;
• ein feststehendes Formstück, an denen sich Federn abstützen;
• einen zwischen dem Kolbenlager und den Federn axial verschieblichen Schubring; und
• Bolzen, welche einerseits am Formstück und andererseits am Kolbenlager verankert sind.

Hierbei ist der Schubring:

• bei aktivierten Hydraulikkolben gegen die Expansion der Federn aus einer Ruhestellung in Richtung Formstück für einen Pressvorgang bis in eine Endstellung beweglich;
• bei inaktivierten Hydraulikkolben durch die expandierenden Federn per Rückstoss aus der Endstellung in die Ruhestellung beweglich bzw. verharrt in der Ruhestellung; und
• mit einem Indikator versehen, der zur äusserlich erkennbaren Stellungsanzeige dient.

Each of the two device halves has:

• a fixed piston bearing with hydraulic connection and piston nests, in which hydraulic pistons rest;
• a fixed fitting on which springs are supported;
• a thrust ring axially displaceable between the piston bearing and the springs; and
• Bolt, which are anchored on the one hand on the fitting and on the other hand on the piston bearing.

Here is the push ring:

• with activated hydraulic piston against the expansion of the springs from a rest position in the direction of fitting for a pressing operation into an end position movable;
• inactivated hydraulic piston by the expanding springs per recoil from the end position to the rest position movable or remains in the rest position; and
• provided with an indicator that serves to externally recognizable position indicator.

• ruhen mit ihren Köpfen in Bolzenlöchern des Formstücks;
• durchragen axial die als Schraubenfedern ausgebildeten Federn und den Schubring;
• greifen mit ihren Aussengewindeabschnitten, welche an den Enden diametral zu den Köpfen angeordnet sind, in Innengewindebohrungen im Kolbenlager ein; und
• bilden für die auf den Bolzen sitzenden kompressiblen Federn und den auf den Bolzen sitzenden Schubring eine axiale Führung.

Bolts:

• rest with their heads in bolt holes of the fitting;
• extend axially through the springs designed as helical springs and the thrust ring;
• engage with their externally threaded portions, which are arranged at the ends diametrically to the heads, in internally threaded holes in the piston bearing; and
• form an axial guide for the compressible springs seated on the bolt and the push ring seated on the bolt.

• sind am Kolbenlager das erste Scharnierteil mit der ersten Scharnierkontur und dem Anschlagselement sowie das zweite Scharnierteil mit der zweiten Scharnierkontur angeordnet;
• sind am Formstück das komplementäre erste Scharnierteil mit der ersten Scharnierkontur und der dritten Scharnierkontur sowie das komplementäre zweite Scharnierteil mit der zweiten Scharnierkontur angeordnet; und
• liegt ein erstes Scharnierteil jeweils einem zweiten Scharnierteil diametral gegenüber.

On each of the two device halves:

• the first hinge part with the first hinge contour and the stop element and the second hinge part with the second hinge contour are arranged on the piston bearing;
• are at the fitting the complementary first hinge part with the first hinge contour and the third hinge contour and the complementary second hinge part arranged with the second hinge contour; and
• a first hinge part is diametrically opposite to a second hinge part.

For different fitting assemblies and pipe sections to be pressed together, namely in the region between a smallest and a larger dimension, a first and a second half of the same half-length are provided for insertion into each of the two device halves, in the form of half circular rings. In each of the two halves of the device, the first half of the inlay should be attached to the fitting and the second half of the inlay should be attached to the push ring. In the closing position of the mounting device, the first and second inlay halves respectively mounted in the two device halves together give each the basic shape of a two-part annular insert. On the fitting, the insert serves the two assembled first Inlayhälften for fixed positioning of the intermediate piece of the fitting kit. At the push ring, the insert of the two assembled second Inlayhälften is intended for engaging behind the aufzuschiebenden on the intermediate piece press ring and thus for establishing the press connection between the fitting kit and a piece of pipe.

• sind adäquat dimensionierte erste Inlayhälften zur Befestigung am Formstück zwecks fixierter Positionierung des Zwischenstücks vorgesehen, hingegen dient zum Hintergreifen des auf das Zwischenstück während des Pressvorgangs aufzuschiebenden Pressrings direkt der Schubring; und
• hat das Kolbenlager zueinander prismenförmig und sich axial erstreckende Stützflächen, um darauf das Rohrstück axial zentriert aufzunehmen.

For fitting kits and fittings to be grouted together in a large dimension:

• are adequately sized first Inlayhälften intended for attachment to the fitting for the purpose of fixed positioning of the intermediate piece, however, serves for engaging behind the aufzuschiebenden on the intermediate piece during the pressing process directly the thrust ring; and
• the piston bearing has prismatic and axially extending support surfaces to receive the tube axially centered thereon.

For fixing the inserted into the mounting device and with the fitting kit to be pressed piece of pipe and for aligning the mounting device on this pipe piece, each of the two device halves on a locking unit. In a first variant, the locking unit is actuated by an Operating arrangement formed. In a second variant, the locking unit comprises an actuatable operating arrangement and an activatable by means of this clamping arrangement. In the closing position of the mounting device, both operating arrangements or both clamping arrangements are intended for diametrically pressing against the outer surface of the pipe section.

• das Stellglied, vorzugsweise in Gestalt eines drehbaren Handrads, mit einer sich vom Stellglied erstreckenden Gewindespindel; und
• ein am Kolbenlager befestigtes oder im Kolbenlager integriertes Lagerstück mit einer durchgehenden Innengewindebohrung, die mit der Gewindespindel in Eingriff ist.

Hierbei ist die Gewindespindel zum unmittelbaren Anpressen an die Aussenfläche des Rohrstücks oder zum Bewegen der sich an die Aussenfläche des Rohrstücks anpressenden Klemmanordnung bestimmt.The operating arrangement comprises:

• the actuator, preferably in the form of a rotatable handwheel, with an extending from the actuator threaded spindle; and
• a mounted on the piston bearing or integrated in the piston bearing bearing piece with a continuous internal threaded bore which is in engagement with the threaded spindle.

Here, the threaded spindle is intended for direct pressing against the outer surface of the pipe section or for moving the pressing against the outer surface of the pipe section clamping arrangement.

• ein U-förmiges Druckstück mit durchgehenden Schraubenlöchern und mit zueinander prismenförmig, sich axial erstreckenden Stützflächen zum axial zentrierten Aufnehmen und Andrücken gegen das Rohrstück;
• Distanzhülsen, die als Abstandhalter zu einer mit dem Druckstück verschraubten zweiten Inlayhälfte dienen; und
• Schrauben, die in den Schraubenlöchern sitzend das Druckstück und jeweils eine der Distanzhülsen durchragen, um dort austretend an der Inlayhälfte einzugreifen.

Die Einheit beider miteinander verbundener, sich in verriegelter Schliessposition befindender Vorrichtungshälften, angesetzt an einem mit einem Fittingbausatz zu verpressenden Rohrstück, ist im Zustand unverspannter Arretiereinheiten in eine beliebige Drehstellung bewegbar.The clamping arrangement comprises:

• a U-shaped thrust piece with through bolt holes and with mutually prismatic, axially extending support surfaces for axially centered receiving and pressing against the pipe section;
• Distance sleeves, which serve as a spacer to a bolted to the pressure piece second Inlayhälfte; and
• Screws that sit in the screw holes, the pressure piece and each one of the spacers protrude to intervene there on the Inlayhälfte.

The unit of both interconnected, in locked closed position device halves, attached to a pipe to be pressed with a fitting assembly, is movable in the state of unrestrained locking units in any rotational position.

One of the two device halves can be attached and fastened to a pipe fitting to be pressed with a fitting assembly in any rotational position. And then the other half of the device can be positioned with the first one positioned Connecting the device half, whereby the mounting device is also suitable for the compression of pipe diameters to DN 100 mm (= 4 inches) for one-man handling.

Brief description of the attached drawings

• Figur 1A - die Montagevorrichtung im Betriebszustand, in verriegelter Schliessposition, in Perspektivansicht;
• Figur 1B - die Montagevorrichtung gemäss Figur 1A, in gewechselter Perspektivansicht;
• Figur 2A - die Montagevorrichtung gemäss Figur 1A, im Verwahrzustand erste und zweite Vorrichtungshälfte voneinander gelöst, in Perspektivansicht;
• Figur 2B - die erste und zweite Vorrichtungshälfte gemäss Figur 2A, in gewechselter Perspektivansicht;
• Figur 3A - die erste Vorrichtungshälfte aus Figur 2A, ohne Inlayhälften, in Perspektivansicht nach innen;
• Figur 3B - die erste Vorrichtungshälfte gemäss Figur 3A, in Perspektivansicht auf Aussenseite;
• Figur 3C - die erste Vorrichtungshälfte gemäss Figur 3A, in perspektivischer, partieller Explosivansicht;
• Figur 3D - die erste Vorrichtungshälfte gemäss Figur 3A, in frontaler Explosivansicht;
• Figur 3E - die erste Vorrichtungshälfte gemäss Figur 3A, mit angenäherten Inlays erster Grösse und Arretiereinheit, in perspektivischer, partieller Explosivansicht;
• Figur 3F - die Anordnung gemäss Figur 3E, in perspektivischer, detaillierter Explosivansicht;
• Figur 4A - die zweite Vorrichtungshälfte aus Figur 2A, ohne Inlayhälften, in Perspektivansicht nach innen;
• Figur 4B - die zweite Vorrichtungshälfte gemäss Figur 4A, in Perspektivansicht auf die Aussenseite;
• Figur 4C - die zweite Vorrichtungshälfte gemäss Figur 4A, in perspektivischer, detaillierter Explosivansicht;
• Figur 4D - die zweite Vorrichtungshälfte gemäss Figur 4A, in frontaler Explosivansicht;
• Figur 4E - die zweite Vorrichtungshälfte gemäss Figur 4A, mit angenäherten Inlays erster Grösse und Arretiereinheit, in perspektivischer, partieller Explosivansicht;
• Figur 4F - die Anordnung gemäss Figur 4E, in perspektivischer, detaillierter Explosivansicht;
• Figur 5A - die erste Inlayhälfte erster Grösse, in Perspektivansicht;
• Figur 5B - die zugehörige zweite Inlayhälfte erster Grösse, in anderer Perspektivansicht;
• Figur 5C - die erste Inlayhälfte zweiter Grösse, in Perspektivansicht;
• Figur 5D - die zugehörige zweite Inlayhälfte zweiter Grösse, in anderer Perspektivansicht;
• Figur 5E - eine Inlayhälfte dritter Grösse, in Perspektivansicht;
• Figur 6A - das vergrösserte Detail X1 aus Figur 3F;
• Figur 6B - das vergrösserte Detail X2 aus Figur 3F;
• Figur 6C - das vergrösserte Detail X3 aus Figur 4F;
• Figur 6D - das vergrösserte Detail X4 aus Figur 4F;
• Figur 6E - die Klemmanordnung gemäss Detail X2 mit angenäherter zweiter Inlayhälfte erster Grösse gemäss Figur 5B, in perspektivischer partieller Explosivansicht;
• Figur 6F - die Klemmanordnung gemäss Detail X4 mit angenäherter zweiter Inlayhälfte erster Grösse gemäss Figur 5B, in perspektivischer partieller Explosivansicht;
• Figuren 7A bis 7H: die Herstellung einer Pressverbindung zwischen einem Fittingbausatz und zwei Rohrstücken mittels der Montagevorrichtung gemäss Figur 1A, in den prinzipiellen Arbeitsphasen, jeweils in Perspektivansicht;

  Figur 7A -

  Erste Arbeitsphase: die Montagevorrichtung gemäss Figur 1A, befindet sich in partiell geöffneter Arretierposition;

  Figur 7B -

  Zweite Arbeitsphase: in die Montagevorrichtung gemäss Figur 7A ist ein vormontierter Fittingbausatz in Gestalt einer geraden Muffe eingesetzt und ein erstes Rohrstück dazu fluchtend angenähert;

  Figur 7C -

  Dritte Arbeitsphase: das erste Rohrstück ist in den Fittingbausatz bis zum Anschlag eingeschoben;

  Figur 7D -

  Vierte Arbeitsphase: die Montagevorrichtung befindet sich in verriegelter Schliessposition, Montagevorrichtung und erstes Rohrstück sind zueinander justiert, Bereitschaft zum Start des Pressvorgangs für erstes Rohrstück [Die Pressverbindung zwischen Fittingsbausatz und zweitem Rohrstück sei zuvor während gleicher Arbeitsphasen und mit gewendeter Montagevorrichtung hergestellt.];

  Figur 7E -

  Fünfte Arbeitsphase: der Pressvorgang mit erstem Rohrstück ist vollendet, die Montagevorrichtung befindet sich weiterhin in verriegelter Schliessposition;

  Figur 7F -

  Sechste Arbeitsphase: anschliessend an die Situation gemäss Figur 7E befindet sich die Montagevorrichtung in partiell geöffneter Arretierposition und lässt sich von kompletter Muffenverbindung mit Fittingbausatz und beiden Rohrstücken abnehmen;

  Figur 7G -

  Siebente Arbeitsphase: die Montagevorrichtung ist von fertig hergestellter Muffenverbindung entfernt; und

  Figur 7H -

  die fertig hergestellte Muffenverbindung als vergrössertes Detail X5 aus Figur 7G.

Show it:

• Figure 1A - The mounting device in the operating condition, in locked closed position, in perspective view;
• FIG. 1B - The mounting device according Figure 1A in changed perspective view;
• FIG. 2A - The mounting device according Figure 1A in the stored state, the first and second device halves detached from each other, in perspective view;
• FIG. 2B - the first and second device half according to FIG. 2A in changed perspective view;
• FIG. 3A - the first half of the device off FIG. 2A , without inlay halves, in perspective view inside;
• FIG. 3B - the first half of the device according to FIG. 3A , in perspective view on the outside;
• FIG. 3C - the first half of the device according to FIG. 3A , in perspective, partial explosive view;
• Figure 3D - the first half of the device according to FIG. 3A in frontal exploded view;
• FIG. 3E - the first half of the device according to FIG. 3A , with approximated inlays of first size and locking unit, in perspective, partial explosive view;
• FIG. 3F - The arrangement according to FIG. 3E in perspective, detailed exploded view;
• FIG. 4A - the second half of the device FIG. 2A , without inlay halves, in perspective view inside;
• FIG. 4B - the second half of the device according to FIG. 4A , in perspective view on the outside;
• FIG. 4C - the second half of the device according to FIG. 4A in perspective, detailed exploded view;
• Figure 4D - the second half of the device according to FIG. 4A in frontal exploded view;
• Figure 4E - the second half of the device according to FIG. 4A , with approximated inlays of first size and locking unit, in perspective, partial explosive view;
• FIG. 4F - The arrangement according to Figure 4E in perspective, detailed exploded view;
• FIG. 5A - the first half of the first half, in perspective view;
• FIG. 5B - the corresponding second half of the half inlay, in another perspective view;
• FIG. 5C - the first second half of the inlay, in perspective view;
• FIG. 5D - the corresponding second half of the second half, in another perspective view;
• FIG. 5E - a third half of an inlay, in perspective view;
• FIG. 6A - the enlarged detail X1 FIG. 3F ;
• FIG. 6B - the enlarged detail X2 FIG. 3F ;
• FIG. 6C - the enlarged detail X3 FIG. 4F ;
• FIG. 6D - enlarged detail X4 FIG. 4F ;
• FIG. 6E - The clamping arrangement according to detail X2 with approximate second half inlay first size according to FIG. 5B , in perspective partial explosive view;
• FIG. 6F - The clamping arrangement according to detail X4 with approximate second half inlay first size according to FIG. 5B , in perspective partial explosive view;
• FIGS. 7A to 7H : the preparation of a press connection between a fitting kit and two pipe sections by means of the mounting device according to Figure 1A , in the principal phases of work, in each case in perspective view;

  FIG. 7A -

  First working phase : the mounting device according to Figure 1A , located in partially open locking position;

  FIG. 7B -

  Second working phase : according to the mounting device FIG. 7A a preassembled fitting kit is used in the form of a straight sleeve and a first pipe piece is aligned to approximate;

  FIG. 7C -

  Third working phase: the first piece of pipe is pushed into the fitting kit to the stop;

  FIG. 7D -

  Fourth working phase : the assembly device is in locked closed position, mounting device and first pipe piece are adjusted to each other, readiness to start the pressing process for first pipe piece [The press connection between fitting kit and second pipe piece was previously made during the same work phases and with reversible mounting device.];

  FIG. 7E -

  Fifth working phase : the pressing process with the first pipe section is completed, the mounting device is still in the locked closed position;

  FIG. 7F -

  Sixth working phase : subsequently to the situation according to FIG. 7E, the mounting device is in a partially opened locking position and can be removed from the complete socket connection with fitting kit and both pipe sections;

  FIG. 7G -

  Seventh working phase : the mounting device is removed from ready-made socket joint; and

  FIG. 7H -

  the finished socket joint as an enlarged detail X5 FIG. 7G ,

embodiment

With reference to the accompanying drawings, the detailed description of an embodiment of the invention created according to the mounting device for producing a press connection between a Fitting kit and a piece of pipe.

The following definition applies to the entire further description. If reference numerals are included in a figure for the purpose of graphic clarity, but are not explained in the directly associated description text, reference is made to their mention in the preceding or following description of the figures. In the interest of clarity, the repeated designation of components in other figures is usually dispensed with, as far as the drawing clearly shows that they are "recurring" components.

FIGS. 1A and 1B

This pair of figures illustrates the mounting device 1 in the operating state in the locked closed position. The mounting device 1 has a first device half 11 and a complementary, largely identical second device half 12 , each of which is in principle of a half-shell shape, separated from each other in the storage state and can be releasably coupled together with their facing concave sides to produce the operating state. The respective device half 11,12 is radially surrounded by a cover 77 on which systematically radially distributed in each case three handles are attached. In the two covers 77 , a slot-shaped window 77 'is provided in each case in the upper and in the lower region, in which an axially movable indicator 37, the externally recognizable position indicator of the thrust ring 3 initiating the pressing process (s. FIG. 2A ), which is driven out of the piston bearing 2 , marked. The one hand, the respective device half 11,12 arranged piston bearing 2 - this page is hereinafter referred to as a-side -, each has a hydraulic port 20 for the supply of hydraulic oil, a plurality of axially directed internal threaded holes 21, internally the two mutually prismatic support surfaces 20 ' and the outside positioned handwheel 64. From the handwheel 64 , the threaded spindle 65 which penetrates the bearing piece 63 , which is externally attached to the piston bearing 2 extends. Between the support surfaces 20 'of the respective piston bearing 2 , the locking unit 6 is axially fixed, but radially adjustable.

On the a-side, above, from the first device half 11 the first hinge part 23 with the present thereon pin-shaped stop element 24 "visible that the complementary stirrup-shaped stop element 24" spaced apart from the first hinge part 23 of the second device half 12 out of engagement. Both first hinge parts 23 are scissor-like manner behind the other offset so that their abutment members 24 "at present are also offset from each other. A shaft member 73 inserted in the first hinge contour 24 of the first hinge portion 23 from the first hopper half 11, wherein the simultaneous engagement of the bolt-like shaft member 73 in the The first hinge contour 24 of the first hinge part 23 is currently concealed by the second device half 11 and is therefore not visible here Further, a closing element 73 ' identical to the upper axis element 73 in the form is partially visible at the bottom The first hinge contours 24 are formed as through-holes.

On the side opposite the piston bearings 2 - this side is referred to as the b-side - is in the side surfaces of both device halves 11,12 each extending in principle over half a circular ring plate-shaped fitting 4, on the concentric, inside a first Inlayhälfte 5 is fixed by means of resting in a first screw hole 52 screw 59 which engages in existing in the fitting 4 screw hole 42 . The first inlay halves 5 are also of semicircular geometry, but of smaller diameter compared to the shaped pieces 4. In closing position of both device halves 11,12 with the two coming together first inlay halves 5 creates a kind of porthole. Each form piece 4 has two depot forms 47 - in the form of axial holes - on which the inserted storage in certain settings of the mounting device 1 unneeded axle elements 73, Schliesselemente 73 ' or holding elements 73 serve. "Front side of the molding 4 open four bolt holes 41st that are covered with caps 70 to the outside, and in which rest bolt. 7

On the b-side, top, are of the first device half 11, the first hinge part 43 with the first hinge contour 44 present thereon and of the second half of the device 12 also visible the first hinge part 43 with the first hinge contour 44 present thereon. In two mutually aligned stationary first hinge contours 44 an axle 73, which the axis of rotation A, together with the plug-in terminations on the a-side axis member 73 in order to let the device both halves 11,12 of each other limited swing open inserted. Both first hinge parts 43 are offset one behind the other in a scissor-like manner so that their third hinge contours 44 ", which are currently also offset from each other and thus unoccupied, are inserted into the second, mutually aligned hinge contours 44 'of the two hinge parts 43' with the one on the a page cooperating second closing element 73 '. All the axle members 73 and closure elements 73' are interchangeable, due to their identical texture and also in the function as the holding member 73 "(see Fig. FIG. 7A ) can be used. Also, the first hinge contours 44, second hinge contours 44 ' and the third hinge contours 44 " are formed as through holes.

FIGS. 2A and 2B

From this pair of figures are now visible on the second device half 12 on the a-side, the previously hidden first hinge contour 24 on the first hinge part 23 and the second hinge part 23 ' with the second hinge contour 24' thereon . Further, on the second device half 12, respectively, the partial positive engagement of the first half of the inlay 5 on the shaped piece 4 and the second half of the half 5 ' on the push ring 3 are visible. For securing the second inlay half 5 'of the insert side screws 59 in the first bolt holes 52, which engage 3 existing screw holes 32 in the thrust ring.

FIGS. 3A to 3F

This sequence of figures illustrates in more detail of the first device half 11 its components and the assembly. In addition to the first and second hinge part 23,23 ', the hydraulic port 20 and the support surfaces 20' has the piston bearing 2 four axial internally threaded holes 21, two axial piston nests 22 and in transverse alignment the blind hole 21 ', an internally threaded bore 25 ' and two through holes 27'. Congruent to the internally threaded holes 21 of the thrust ring 3 has four bolt holes 31. Further, the simulant trained receiving contour 30 with the existing therein two screw holes 32 and two spring ester 36 are present on the thrust ring 3 . The molding 4 has except both hinge parts 43,43 ' and the depot molds 47 in the axial alignment of the bolt holes 41 and the turn simsartig trained receiving contour 40 with the therein eccentrically arranged screw hole 42 and two directed into the interior springs spring 46th

In assembled situation sit the two hydraulic pistons 29 on the one hand with the stripping 27 in the piston nests 22 and press on the other hand against the thrust ring 3. Between thrust ring 3 and fitting 4 are the two types of coil springs 76, namely four strong and two smaller diameter pairs between the springs are 36,46 clamped. For cohesion of the first device half 11 serve bolts 7, which hang with their thickened heads 7 ' in the bolt holes 41 of the fitting 4 , with the shafts 72, the bolt holes 31 of the thrust ring 3 and finally with their male threaded portions 71 in the internal threaded holes 21 of the piston bearing. 2 intervention. The caps 70 are intended for insertion into the bolt holes 41 so that the heads 7 ' resting therein are concealed. The two pen-shaped indicators 37 are fixed transversely in the thrust ring 3 . By means of the screws 79 , the handles 78 - the first device half 11 quasi axially bridging - bolted to the piston bearing 2 and the fitting 4 . To fix the bearing piece 63 , the fixation pins 67, which are firmly seated therein, extend into the two through holes 27 ' in the piston bearing 2.

From the a-side to the b-side , the axis of rotation A extends , which runs through the first hinge contour 24 in the first hinge part 23 and the first hinge contour 44 in the first hinge part 43 . In operation, the axis of rotation A comes only when connecting the first with the second device half 11,12 and the insertion of the two axle elements 73. The locked closing position between the first and second half device 11,12 is reached only with the insertion of the two closing elements 73 ' .

At the first Inlayhälte 5 , the receiving contour 50, the retaining contour 55 and the off-center first screw hole 52 are visible. In the inserted state, the first inlay Hälte 5 is positively attached to the fitting 4, the female profile 40 projects into the retaining surface 55 and by means of the single screw 59 which engages in the screw holes 52,42, the first inlay Hälte 5 is secured to the fitting. 4 The second inlay Hälte 5 'also has a receiving contour 50 and a retaining surface 55, but has two first screw holes 52, and also two second screw holes 54 for securing the clamp assembly 6 ". The clamp assembly 6" is made first from the prismatic pressure piece 60 and the two Parallel arranged spacers 68 together, and is bolted to the pressure piece 60 and the spacers 68 protruding screws 69 with the second Inlayhälte 5 ' .

FIGS. 4A to 4F

The components and the assembly of the second device half 12 are largely identical to the first device half 11 , so that reference is made to the detailed description to the figure sequence 3A to 3F and a renewed unnecessary. Overall, the two device halves 11,12 are mirror images of each other. Only the stop element 24 " is bow-shaped and the two first hinge parts 23,43 and the two second hinge parts 23 ', 43' are arranged on the piston bearing 2 and on the fitting 4 with axial offset relative to the first device half 11. In locked closed position of the mounting device 1 with its two device halves 11 , 12 , therefore, the two first hinge parts 23 come to lie one behind the other, as do the two other first hinge parts 43, the two second hinge parts 23 ' and the two other second hinge parts 43'.

FIGS. 5A and 5B

All first and second Inlayhälften 5, 5 ' have the basic shape of half circular rings. For processing pipe sections 9,9 ' different outer diameter Inlayhälften 5,5' adequate dimensions are provided. A first size of the inlay halves 5, 5 ' is eg for pipe diameters of 2½ = 76.1 mm designed, wherein the cross-sections of the inlay halves 5,5 ' differ from each other within the same size, namely, the first Inlayhälften 5 to the fitting 4 and the second Inlayhälften 5' are adapted to the thrust ring 3 .

FIGS. 5C and 5D

A second size of the Inlayhälften 5,5 ' is designed for example for pipe diameter of 3 "= 88.9 mm.

Figures 5E

For a third size, eg for pipe diameters of 4 "= 114.3 mm, only first inlay halves 5 are required for insertion into the two device halves 11, 12, namely for attachment to the shaped pieces 4. The thrust ring 3 itself has the geometry, a press ring 82 of complementary size at the end face 829 behind (s. FIG. 7H ).

FIGS. 6A to 6F

The locking unit 6 'may include and clamp assembly 6 "or only from the operating assembly 6', the two subassemblies operating arrangement 6 are formed, so to be processed in the greatest dimension of the pipe pieces 9,9 'and the elimination of the second inlay halves 5'. The control arrangement 6 has the actuator 64, preferably in the form of a rotatable handwheel, with the threaded spindle 65 extending centrally from the actuator 64. The bearing element 63 has the central through-bore 63 ' for penetrating the threaded spindle 65 and a pinhole 67' on each side of the through-bore 63 ' the free end of the threaded spindle 65, which engages in the internally threaded bore 25 ' in the piston bearing 2 , the first spring 66. The fixing pins 67 stuck on the one hand in the pin holes 67' of the bearing 63 and the other hand in the through holes 27 ' in the piston bearing 2. With increasing Turning the actuators 64 in both device halves 11,12 enters the respective free end the threaded spindle 65 from the associated internal threaded bore 25 ' transversely out. Thus, the two ends of the threaded spindles 65 press diametrically opposite directly with centering and fixing effect against a in the Mounting device 1 inserted pipe section 9,9 ', which is also comprised of the four prismatic support surfaces 20' of both piston bearings 2 .

In the processing of tube pieces 9,9 'of smaller pipe dimensions where second inlay halves 5' are built into the mounting apparatus 1, the locking unit 6 is in the combination of the control arrangement 6 'and clamp assembly 6 "to Einsätz. The inserted pipe piece 9.9' can now no longer be included by the four prismatic support surfaces 20 'of both piston bearings 2 , but rests against the prism-shaped support surfaces of the plungers 60 in the respective clamping arrangement 6 "of the relevant device half 11,12.

The clamp assembly 6 "has the U-shaped pressure piece 60 with axially through-bolt holes 62 and with each other prism-shaped, axially extending support surfaces for axially centered receiving and pressing against an inserted into the mounting device 1 piece of pipe 9,9 '. Moreover, on the pressure piece 60, a transverse blind hole 61 'is provided. in addition, "includes the clamp assembly 6, a pair of second springs 66' for attachment to the two screws 69, a fuse element 61 and the two spacers 68 as a spacer to the screw with the pressure piece 60 second inlay half 5 '.

In the assembled state, the screws 69 with the attached second springs 66 'project through the screw holes 62, then the two spacers 68, and finally engage in the second screw holes 54 in the second half 5' of the insert . The fuse element 61 is in the blind hole 61 '. Thus, a composite of clamping assembly 6 " and second half of the inlay 5 ' (s. Figures 3E and 4E ). The operating assembly 6 ' is installed in the respective device half 11, 12 as described above. Of the with the second Inlayhälfte 5 ' connected clamping assembly 6 " is the pressure piece 60 in the cavity between the support surfaces 20' on the piston bearing 2. The stuck in the pressure piece 60 fuse element 61 is engaged in the blind hole 21 ' in the piston bearing 2 , whereby the pressure piece 60 against Axial displacement is secured.

With increasing screwing of the actuators 64 in both device halves 11,12 the respective free end of the threaded spindle 65 occurs out of the associated internally threaded bore 25 ' transversely out, but now presses radially on the pressure piece 60, so that the inserted into the mounting device 1 piece of pipe 9.9 'is now clamped between the prismatic support surfaces of the two pressure pieces 60 .

FIGS. 7A to 7G

This sequence of figures illustrates the production of a press connection between a fitting kit 8 and two pipe sections 9, 9 ' by means of the mounting device 1 in the basic working phases.

Figure 7A: First working phase

The mounting device 1 is located in a partially opened locking position. Both device halves 11, 12 are pivoted about the axis of rotation A, for example by 60 °, and are equipped with the first and second inlay halves 5, 5 ' and the locking units 6 . On the b-side, an axle element 73 is inserted into the first hinge contours 44 lying congruently one behind the other . At the same time, on the a-side - here largely hidden - an axle element 73 is inserted into the first hinge contours 24, which likewise congruently follow one another. Both axle elements 73 lie on the shaft axis of rotation A. Further, attached to the b-side of a retaining element 73 "in the series-congruent contours lying third hinge 44". In addition, on the a side, the stopper members 24 " are engaged with each other, thereby limiting the opening angle of both device halves 11, 12. According to the indicators 37 on the right in the windows 77 ' , the push rings 3 are in the home position.

FIG. 7B: Second working phase

In the state of partially opened locking position of the mounting device 1 is from the a-side a first pipe section 9, which has the outer surface 91 , with the abutting surface 90 and the terminal end 99 ahead, brought axially to the mounting device 1 . From the b-side , a fitting assembly 8, the two pressing rings 82 are pre-mounted proportionately pushed onto the intermediate piece 81 , inserted. The exemplary embodiment shown here of the fitting kit 8 has the shape of a straight sleeve with the cutout 812 on the spacer 81 in its axial center. The two compression rings 82 have outside each an annular end surface 829. The fitting assembly 8 is inserted into the mounting device 1 , that the projecting receiving contour 50 of the two first inlays 5 engages in the cutout 812 of the intermediate piece 81 and on the end face 829 of the inside Mounting device 1 lying pressing ring 82, the second inlays 5 ' with their receiving contours 50 are pending. Other variants of fitting kits are the subject of the Applicant's European Patent Application No. 17 405 004.7. The previously unchanged position of the indicators 37 signals the further occupied by the thrust rings 3 starting position.

Figure 7C: Third working phase

In the state maintained partially opened locking position of the mounting device 1 , the first pipe section 9, with the butt surface 90 and the terminal end 99 ahead, inserted from the a-side in the fitting kit 8 to an inner stop 819 (s. FIG. 7H ) or else to a defined depth, such as in a fitting kit 8 in the form of a sliding sleeve. The continued unchanged position of the indicators 37 marks that the thrust rings 3 are still in their starting position.

Figure 7D: Fourth working phase

The mounting device 1 was placed in the locked closed position. For this purpose, on the b-side, the holding element 73 " pulled out of the consecutively lying third hinge contours 44" and both device halves 11,12 pivoted about the axis of rotation A to each other until the second hinge contours 44 'of the two second hinge parts 43' are aligned. The previously pulled holding element 73 " is inserted into the second hinge contours 44 ' and thus has the function of a closing element 73' On the a side , the stop elements 24" have moved away from each other and another closing element 73 ' has been brought into the congruent position come second hinge contours 24 'of the two second hinge parts 23' inserted.

For axial adjustment and clamping between mounting device 1 and inserted first pipe section 9 , the two hand wheels 64 were tightened evenly. Thus, the readiness for the start of the pressing process for the first pipe section 9 is produced. Indicators 37 and thrust rings 3 are still in their starting positions. Between Fittingbausatz 8 and second pipe section 9 ' was previously made during a complete operation with reversible mounting device 1, the press connection.

Figure 7E: Fifth working phase

The now driven to the left indicators 37 indicate that the pressing process with the first pipe section 9 is completed, so the thrust rings 3 were driven by the applied piston bearings 2 and thus the second inlays 5 ' with feed against the end face 829 of the affected press ring 82 this pushed into the proper end position on the intermediate piece 81 .

Figure 7F: Sixth working phase

After carrying out the pressing process according to Figure 7E the application of the piston bearings 2 was turned off, so that the package of relaxing springs 76 has pushed back the composite of second inlays 5 ' and thrust rings 3 to the starting position, recognizable by the original position of the indicators 37. Furthermore, the two handwheels 64 were released to release the first piece of pipe 9 from the locking units 6 . In order to open the mounting device 1 , one has the two closing elements 73 ' from the pairings of the second hinge contours 24', 44 ' removed and then advantageously brought the mounting device 1 for handling, again in the partially opened locking position. Retaining member 73 " is recessed and stopper members 24 " are again engaged with each other.

Figures 7G and 7H: Seventh working phase

The mounting device 1 located in a partially opened locking position was removed from the finished sleeve connection with fitting assembly 8 and both pipe sections 9, 9 ' .

In the compressed state of the socket joint, consisting of fitting kit 8 - in the example shown in the form of a straight sleeve - and two pipe sections 9,9 ', the following picture emerges. The two pipe sections 9,9 ' stuck in the intermediate piece 81 and thereby bounce each with their existing at the terminal ends 99 annular abutment surfaces 90 inwardly in the intermediate piece 81 radially encircling stop 819. The provided on the extension 811 of the intermediate piece 81 claws 813 were by squeezing the pushed into the intended end position pressing rings 82 and the bulged outwardly bulges 818 on the intermediate piece 81 in the outer surface 91 of the pipe sections 9,9 ' pressure-tight and axially fixing pressed. The bouncing shoulders 826 of the pressing rings 82 abut against the shoulder surfaces 816 of the intermediate piece 81. At the level of both end faces 810 of the intermediate piece 81 , the outer end face 929 of the associated pressing ring 82 closes in each case. Between the two outside diameter thickened ring segments 814 is the cutout 812, which is bounded on both sides by supporting surfaces 817 . Up to the support surfaces 817 , the respective end face 820 of the associated compression ring 82 is advanced. The free-cutting 812 directed tongue segments 824 of the two compression rings 82 each have a latching element 825, which is latched for additional assurance of the relevant press connection in a recess 815 on the associated ring segment 814 .

Claims (15)

Mounting device (1) for producing a press connection between a fitting assembly (8) and a pipe section (9, 9 '), wherein: a) the fitting kit (8) comprises: aa) a sleeve-like intermediate piece (81) which is intended for internal, axially inserted receiving a connection end (99) of the pipe section (9,9 ') ; and ab) a pressing ring (82) (99) and the intermediate piece (81) is provided on the intermediate piece (81) with the effect of the emergence of a pressure-tight and mechanically loadable press connection between the terminal end (for pushing means of the mounting apparatus 1), characterized marked that b) the mounting device (1) has a first device half (11) and a complementary, substantially identical second device half (12) , each of which is in principle of a half-shell shape, separated from each other in the stored state and for achieving the operating state coupling means ( 24 , 44, 24 ', 44', 24 ", 44", 73, 73 ', 73 " ) for releasable assembly with their facing concave sides. Mounting device (1) according to claim 1, characterized in that a) the amount of coupling means ( 24,44; 24 ', 44'; 24 ", 44"; 73,73 ', 73 " ) to achieve an operating condition with assembled device halves (11,12) on each device half (11,12 ) includes a pair of first hinge contours (24, 44) , and each device half (11, 12) has a pair of first hinge parts ( 23, 43 ) on which the respective first hinge contour (24, 44) is provided; b) in the state of assembled device halves (11, 12) all first hinge contours (24, 44) rest on an axially extending axis of rotation (A) ; and c) in the first hinge contours ( 24,44 ) of both device halves ( 11,12) at least one axle element (73) as a releasable connecting member along the Rotary axis (A) can be used, about which both device halves (11,12) are independently movable. Mounting device (1) according to claims 1 and 2, characterized in that a) the amount of the coupling means ( 24, 44, 24 ', 44', 24 ", 44", 73, 73 ', 73 " ) for achieving an operating state with assembled device halves (11, 12) in locked closed position on each device half ( 11, 12) includes a pair of second hinge contours (24 ', 44') , and each device half (11, 12) has a pair of second hinge parts (23 ', 43') against which the respective second hinge contour ( 24 ', 44') ) is provided; b) in the closed state, when the device halves (11, 12) are assembled together, all second hinge contours (24 ', 44') are in alignment with each other; and c) in the second hinge contours ( 24 ', 44' ) of both device halves (11,12) at least one closing element (73 ') is used as a releasable locking member, whereby both device halves (11,12) are locked in the closed position against each other. Mounting device (1) according to at least one of claims 1 to 3, characterized in that a) the quantity of the coupling means ( 24,44; 24 ', 44'; 24 ", 44"; 73,73 ', 73 " ) in order to achieve an operating state with assembled device halves (11,12) in partially opened, spread locking position each device half (11, 12) includes a third hinge contour (44 ") provided on one of the respective first hinge parts (43) ; b) in the state of assembled device halves (11, 12) in a partially opened, spread locking position, both third hinge contours (44 ") are aligned with one another; c) in the third hinge contours (44 ") of both device halves (11,12), a releasable retaining element (73") is inserted, whereby both device halves (11,12) are locked in a partially open, spread position against each other; in which d) the second hinge contours (24 ', 44') of both device halves (11,12) remain unpopulated. Mounting device (1) according to claim 4, characterized in that a) the quantity of the coupling means ( 24,44; 24 ', 44'; 24 ", 44"; 73,73 ', 73 " ) in order to achieve an operating state with assembled device halves (11,12) in partially opened, spread locking position each device half (11, 12) includes a stopper member (24 ") provided on one of the respective first hinge parts (23) ; b) with the widest spread of both device halves (11,12) both abutment members (24 ") abut each other and thereby limit a maximum opening angle between the two device halves (11,12) ; c) the stop elements (24 ") and the third hinge contours (44") are in each case aligned with one another on both device halves ( 11, 12 ); and d) the second hinge contours (24 ', 44') of both device halves (11,12) remain unpopulated. Mounting device (1) according to at least one of claims 1 to 5, characterized in that the first hinge parts (23,43) and the second hinge parts (23 ', 43') on the first device half (11) to the first and second hinge parts ( 23, 43, 23 ', 43' ) are offset relative to one another on the second device half (12) in their pairings as first hinge parts ( 23, 43 ) and second hinge parts ( 23 ', 43' ) in the extension of the axis of rotation (A) , in the case of assembled device halves (11, 12): a) from the second device half (12) the pair of first hinge parts (23, 43) come to rest between the associated pair of first hinge parts (23, 43) of the first device half (11) ; and b) from the first device half (11) the pair of second hinge parts (23 ', 43') comes to rest between the associated pair of second hinge parts (23 ', 43') of the second device half (12) . Mounting device (1) according to at least one of claims 1 to 6, characterized in that for releasable connections a total of four locking pins (73; 73 ', 73 ") are provided, namely: a) for joining the two device halves (11, 12) to the first hinge contours ( 24, 24, 44, 44 ) which converge congruently in pairs, two of the four locking pins being used as axle elements (73) ; or b) for joining the two device halves (11, 12) in the locked closed position to the first hinge contours ( 24, 24; 44, 44 ), which congruently come together for two , and second hinge contours ( 24 ', 24', 44 ', 44' ), two of the four locking pins are used as axle elements (73) and two as closing elements (73 ') ; or c) for joining the two device halves (11, 12) in a partially opened, spread-apart locking position to the first hinge contours (24, 24 , 44, 44 ) and third hinge contours (44 ", 44") which congruently join together ; four locking pins two as axle elements (73) and one as a holding element (73 ") are used. Mounting device (1) according to claim 7, characterized in that a) for providing temporarily not inserted locking pin (73, 73 ', 73 "), the mounting device (1) depot forms (47) , and b) the locking pins (73, 73 ', 73 ") are designed with a latching means to prevent the unintentional release from the hinge contours (24, 44; 24', 44 ', 44" ) or the depot forms (47) ; in which c) the depot molds (47) preferably on the front side of the mounting device (1), on the side of the third hinge contours (44 "), are formed as insertion holes. Mounting device (1) according to at least one of claims 1 to 8, characterized in that each of the two device halves (11, 12) has: a) a fixed piston bearing (2) with hydraulic connection (20) and piston nests (22) in which hydraulic pistons (29) rest; b) a fixed fitting (4) on which springs (76) are supported ; c) a between the piston bearing (2) and the springs (76) axially displaceable thrust ring (3), which: ca) with activated hydraulic piston (29) against the expansion of the springs (76) from a rest position in the direction of the molding (4) for a pressing operation is movable into an end position; cb) with inactivated hydraulic piston (29) by the expanding springs (76) by recoil from the end position to the rest position is movable or remains in the rest position; and cc) is provided with an indicator (37) , which serves for externally recognizable position indicator; and d) bolts (7) which are anchored on the one hand on the fitting (4) and on the other hand on the piston bearing (2) . Mounting device (1) according to claim 9, characterized in that the bolts (7): a ) rest with their heads (7 ') in bolt holes (41) of the fitting (4) ; b) axially protrude the springs (76) designed as helical springs and the thrust ring (3) ; c) with their externally threaded portions (71), which are arranged at the ends diametrically to the heads (7 ' ) engage in internally threaded bores (21) in the piston bearing (2) ; and d) for the on the bolt (7) seated compressible springs (76) and the bolt (7) seated thrust ring (3) form an axial guide. Mounting device (1) according to at least one of claims 1 to 10, characterized in that on each of the two device halves (11,12): a) on the piston bearing (2), the first hinge part (23) with the first hinge contour (24) and the stop element (24 ") and the second hinge part (23 ') with the second hinge contour (24') are arranged; b) on the fitting (4) the complementary first hinge part (43) with the first Hinge contour (44) and the third hinge contour (44 ") and the complementary second hinge part (43 ') with the second hinge contour (44') are arranged; c) a first hinge part (23,43) in each case a second hinge part (23 ', 43') is diametrically opposite. Mounting device (1) according to at least one of claims 1 to 11, characterized in that a) for a variety of fitting kits (8) and pipe sections (9,9 ') to be pressed together , namely in the range between a smallest and a larger dimension, for insertion into each of the two device halves (11,12) each have a first and a second Inlayhälfte (5,5 ') of the same dimension, in the form of a principal half circular rings, are provided; b) in each of the two device halves (11, 12), the first half of the inlay (5 ) is to be fastened to the shaped part (4) and the second half of the half (5 ') to the push ring (3) ; c) at the closing position of the mounting device (1) in the two device halves ( 11,12) respectively mounted first and second Inlayhälften (5,5 ') together give each the basic shape of a two-piece annular insert; d) on the fitting (4) the insert of the two assembled first Inlayhälften (5,5) for fixed positioning of the intermediate piece ( 81) of the fitting kit (8) is used; and e) on the thrust ring (3) of the insert from the two assembled second Inlayhälften (5 ', 5') for engaging behind the intermediate piece ( 81) aufzuschiebenden press ring (82) and thus for producing the press connection between the fitting kit (8) and a Pipe piece (9 ', 9), is determined; in which f) for fitting kits (8) to be compressed together with pipe sections (9, 9 ') in a largest dimension: fa) adequately dimensioned first Inlayhälften (5,5) for attachment to the mold piece (4) for the purpose of fixed positioning of the intermediate piece ( 81) are provided, however, for engaging behind the on the intermediate piece (81) during the pressing operation aufzuschiebenden press ring (82) directly the thrust ring (3) is used; and fb) the piston bearing (2) has mutually prism-shaped and axially extending support surfaces (20 ') to receive the tube piece (9,9') centered axially thereon. Mounting device (1) according to at least one of claims 1 to 12, characterized in that a) for fixing the in the mounting device (1) inserted and with the fitting kit (8) to be pressed pipe section (9,9 ') and for aligning the mounting device ( 1 ) on this pipe section (9,9') each of the two device halves ( 11, 12) has a locking unit (6) ; b) the locking unit (6) is formed in a first variant of an operable control arrangement ( 6 ' ); and c) the arresting unit (6) in a second variant comprises an actuatable operating arrangement (6 ') and a clamping arrangement (6 ") which can be activated by means of the latter; d) in the closing position of the mounting device (1) both operating arrangements (6 ') and both clamping arrangements (6 ") for diametrically pressing on - the outer surface (91) of the pipe section (9,9') are determined. Mounting device (1) according to claim 13, characterized in that a) the operating arrangement (6 ') comprises: aa) the actuator (64), preferably in the form of a rotatable handwheel, with a from the actuator (64) extending threaded spindle (65); and ab) a bearing piece (63 ) fixed to the piston bearing (2) or integrated in the piston bearing (2) with a continuous internal threaded bore (63 ') which engages with the threaded spindle (65) ; in which determined ac) the threaded spindle (65) for direct pressing (at the outer surface 91) of the tubular piece (9,9 ') or to move the up (to the outer surface 91) of the tubular piece (9,9') anpressenden clamp assembly (6 ") is and b) the clamping arrangement (6 ") comprises: ba) a U-shaped pressure piece (60), with through bolt holes (62) and with mutually prismatic, axially extending support surfaces for axially centered receiving and pressing against the pipe section (9,9 '); bb) spacer sleeves (68) serving as spacers for a second inlay half (5 ') screwed to the pressure piece ( 60) ; and bc) screws (69) projecting through the screw holes ( 62) projecting the pressure piece ( 60) and each one of the spacer sleeves (68) , in order there to engage the Inlayhälfte (5 ') ; and c) the unit of both interconnected, in locked locked position device halves (11,12), attached to a with a fitting kit (8) to be compressed pipe piece (9,9 '), in the state of unrestrained locking units (6), in any Rotary position is movable. Mounting device (1) according to at least one of claims 1 to 14, characterized in that a) one of the two device halves (11,12) on a with a fitting kit (8) to be pressed pipe section (9,9 ') in any rotational position can be attached and fastened; and b) thereafter, the other device half ( 12,11 ) with the first positioned device half (11,12) can be connected, whereby the mounting device ( 1) even when pressing pipe diameters to DN 100 mm (= 4 inches) to Ein Man-handling.

Images