DE10345034B4 - Connecting piece for a fluid-tight connection between at least two pipe elements and pipe connecting device with such a connection piece - Google Patents

Connecting piece for a fluid-tight connection between at least two pipe elements and pipe connecting device with such a connection piece Download PDF

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Publication number
DE10345034B4
DE10345034B4 DE10345034A DE10345034A DE10345034B4 DE 10345034 B4 DE10345034 B4 DE 10345034B4 DE 10345034 A DE10345034 A DE 10345034A DE 10345034 A DE10345034 A DE 10345034A DE 10345034 B4 DE10345034 B4 DE 10345034B4
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DE
Germany
Prior art keywords
elements
connection
pipe
plastic
tubular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE10345034A
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German (de)
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DE10345034A1 (en
Inventor
Thomas Schaaf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rehau Automotive SE and Co KG
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Rehau AG and Co
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Filing date
Publication date
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Priority to DE10345034A priority Critical patent/DE10345034B4/en
Publication of DE10345034A1 publication Critical patent/DE10345034A1/en
Application granted granted Critical
Publication of DE10345034B4 publication Critical patent/DE10345034B4/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • B29C65/3432—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding comprising several wires, e.g. in the form of several independent windings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1246—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove
    • B29C66/12469—Tongue and groove joints characterised by the female part, i.e. the part comprising the groove being asymmetric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5223—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces
    • B29C66/52231—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5224—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241—Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/63—Internally supporting the article during joining
    • B29C66/636—Internally supporting the article during joining using a support which remains in the joined object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72321—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7234—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer
    • B29C66/72341—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a barrier layer for gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F16L47/03—Welded joints with an electrical resistance incorporated in the joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

Anschlussstück (2) für eine fluiddichte Verbindung zwischen mindestens zwei Rohrelementen (3, 4):
-a- mit einem ersten Anschlusskörper (7) mit einem ersten Heizelement (18) zur Kunststoffschweißverbindung des ersten Anschlusskörpers (7) mit einem Kunststoffabschnitt des ersten Rohrelements (3),
-b- mit einem zweiten Anschlusskörper (8) mit einem zweiten Heizelement (19) zur Kunststoffschweißverbindung des zweiten Anschlusskörpers (8) mit einem Kunststoffabschnitt des zweiten Rohrelements (4), wobei
-c- die beiden Anschlusskörper (7, 8) als Anschlussstutzen zum Einschieben in die beiden Rohrelemente (3, 4) ausgestaltet sind und
-d- die Heizelemente (18, 19) derart angeordnet sind, dass beim Heizen im Bereich einer äußeren Umfangswand der beiden Anschlusskörper (7, 8) Schweißzonen zur Kunststoffschweißverbindung der Anschlusskörper (7, 8) mit den beiden Rohrelementen (3, 4) erzeugt werden,
-e- zwischen den Anschlusskörpern (7, 8) mindestens ein Anschlagbund (9) für die dem Anschlussstück (2) zugewandten Stirnwände von Endabschnitten (14, 15) der miteinander zu verbindenden Rohrelemente (3, 4) angeordnet...Connecting piece (2) for a fluid-tight connection between at least two tubular elements (3, 4):
with a first connecting body (7) with a first heating element (18) for the plastic welding connection of the first connecting body (7) with a plastic section of the first tubular element (3),
with a second connecting body (8) with a second heating element (19) for plastic welding connection of the second connecting body (8) with a plastic portion of the second tubular element (4), wherein
-c- the two connection body (7, 8) as a connecting piece for insertion into the two pipe elements (3, 4) are designed and
-d- the heating elements (18, 19) are arranged such that during heating in the region of an outer peripheral wall of the two connection body (7, 8) generates welding zones for plastic welding connection of the connection body (7, 8) with the two pipe elements (3, 4) become,
-e between the connection bodies (7, 8) at least one stop collar (9) for the connecting piece (2) facing end walls of end portions (14, 15) of the pipe elements (3, 4) to be joined together ...

Figure 00000001
Figure 00000001

Description

Die Erfindung betrifft ein Anschlussstück für eine fluiddichte, also z. B. flüssigkeits- oder gasdichte, Verbindung zwischen mindestens zwei Rohrelementen nach dem Oberbegriff des Anspruchs 1. Ferner betrifft die Erfindung eine Rohrverbindungseinrichtung nach Anspruch 4 mit einem derartigen Anschlussstück.The Invention relates to a fitting for a fluid-tight, so z. B. liquid or gas-tight, connection between at least two tubular elements according to the preamble of claim 1. Furthermore, the invention relates a pipe connection device according to claim 4 with such Connector.

Ein derartiges Anschlussstück ist bekannt aus der JP 09144977 A .Such a connector is known from the JP 09144977 A ,

Weitere Anschlusstücke zum Kunststoffschweißen sind bekannt aus der EP 0 809 064 A1 , der JP 05322089 A , der DE 44 44 097 C2 und der JP 2000130680 A.Other fittings for plastic welding are known from the EP 0 809 064 A1 , of the JP 05322089 A , of the DE 44 44 097 C2 and JP 2000130680 A.

Ein Anschlussstück sowie eine Rohrverbindungseinrichtung mit einem solchen Anschlussstück sind bekannt aus der DE 42 20 574 A1 . Dort ist als Anschlussstück ein hülsenförmiger Rohrverbinder vorgesehen, in den Endabschnitte der beiden Rohrelemente eingeschoben werden. Im Bereich der Innenwand des Rohrverbinders ist zum Herstellen einer Kunststoffschweißverbindung ein Heizelement in Form einer Heizwicklung vorgesehen.A fitting and a pipe connection device with such a connection piece are known from the DE 42 20 574 A1 , There, a sleeve-shaped pipe connector is provided as a connector, are inserted into the end portions of the two pipe elements. In the region of the inner wall of the pipe connector, a heating element in the form of a heating coil is provided for producing a plastic welded connection.

Metall-Kunststoff-Verbundrohre mit dünner äußerer Kunststoffdeckschicht oder Kunststoffrohre mit außenliegender Sperrschicht gegen Sauerstoffdiffusion lassen sich nicht oder nur mit großem Aufwand mittels eines solchen Anschlussstücks miteinander verbinden.Metal-plastic composite tubes with thin outer plastic cover layer or plastic pipes with external Barrier against oxygen diffusion can not or only with big Connect effort by means of such a connector with each other.

Es ist daher eine Aufgabe der vorliegenden Erfindung, ein Anschlussstück der eingangs genannten Art derart weiterzubilden, dass Rohrelemente mit weitgehend beliebiger Materialvorgabe für eine äußere Deck- bzw. Sperrschicht sicher ausgerichtet miteinander verbunden werden können.It is therefore an object of the present invention, a connector of the above so-called type such that pipe elements with largely any material specification for an outer cover or barrier layer to be securely aligned with each other can.

Diese Aufgabe ist erfindungsgemäß gelöst durch ein Anschlussstück mit den im Kennzeichnungsteil des Anspruchs 1 angegebenen Merkmalen sowie durch eine Rohrverbindungseinrichtung nach Anspruch 4.These The object is achieved by a connector with the features specified in the characterizing part of claim 1 and features by a pipe connection device according to claim 4.

Erfindungsgemäß wurde erkannt, dass viele derzeit gebräuchliche Varianten von Rohrelementen, die zum Herstellen einer Kunststoffschweißverbindung ungeeignete Deck- bzw. Sperrschichten aufweisen, Innenwände haben, die sich zum Herstellen einer derartigen Kunststoffschweißverbindung sehr wohl eignen.According to the invention was recognized that many currently in use Variants of pipe elements used to make a plastic weld joint have unsuitable cover or barrier layers, have interior walls, for producing such a plastic welded connection very well suited.

Die Erfindung verlagert daher die zur Schweißverbindung erforderlichen Schweißzonen von der Außenwandung der Rohrelemente hin zur Innenwandung. Damit lassen sich mit dem erfindungsgemäßen Anschlussstück nun Rohrelemente mit Hilfe eines auf einer Kunststoffschweißverbindung beruhenden Anschlussstücks verbinden, bei denen dies bislang nicht oder nur unter großem Aufwand möglich war. Insbesondere müssen äußere Deck- bzw. Sperrschichten keiner gesonderten Behandlung unterzogen werden, so dass ihre Wirksamkeit nicht beeinträchtigt wird.The Invention therefore relocates required for the weld Welding zones of the outer wall the pipe elements towards the inner wall. This can be with the inventive connector now tube elements connect with the help of a fitting based on a plastic weld joint, where this was not possible or only with great effort. In particular, outer cover or barrier layers must no separate treatment, so that their effectiveness not impaired becomes.

Zudem lässt sich bei auf das Anschlussstück aufgesteckten Rohrelementen die Relativlage zwischen dem Anschlussstück und den Rohrelementen besser kontrollieren. Die Anschlusskörper können so dünnwandig ausgeführt werden, dass eine Querschnittsverringerung der Rohrelemente durch die innenliegenden Anschlusskörper praktisch nicht ins Gewicht fällt. Insgesamt kann auch beim Einsatz von Metall-Kunststoff-Verbundrohren eine Verbindung realisiert werden, bei der keine metallischen Systembestandteile in Kontakt zum zu transportierenden Medium stehen.moreover let yourself when plugged onto the connector Pipe elements, the relative position between the connector and the Better control pipe elements. The connection bodies can be so thin-walled accomplished be that a cross-sectional reduction of the tubular elements by the internal connection body practically does not matter. Overall, even when using metal-plastic composite pipes a connection can be realized in which no metallic system components in contact with the medium to be transported.

Der insbesondere einstückig an die Anschlusskörper angeformte Anschlagbund ermöglicht eine definierte Relativlage des Anschlussstücks zu den zu verbindenden Rohrelementen.Of the in particular in one piece to the connection body molded stop collar allows a defined relative position of the connection piece to be connected Tube elements.

Widerstandsheizelemente haben sich zur Schaffung einer Kunststoffschweißverbindung bewährt.resistance heating elements have proven themselves to create a plastic welding connection.

Die Führung der Anschlussleitungen durch den Anschlagbund ist dabei besonders elegant.The guide The connecting cables through the stop collar is special elegant.

Angeformte Hülsenkörper schaffen eine mechanische Stabilität im Verbindungsbereich der beiden Rohrelemente. Diese mechanische Stabilität kann durch eine zusätzliche Metallmanschette, z. B. mit einem Schnappverschluss, noch erhöht werden. Zudem ist ein Ausrichten der Rohrelemente zueinander aufgrund der durch die Gestaltung der Einschubausnehmungen exakt definierten Relativlage von diesen vereinfacht.Molded Create sleeve body a mechanical stability in the connection region of the two pipe elements. This mechanical Stability can through an additional Metal cuff, z. B. with a snap closure, to be increased. moreover is an alignment of the tubular elements to each other due to the design of the insertion recesses exactly defined relative position simplified by these.

Haltemittel zum Verhindern eines Ausschiebens der Rohrelemente erhöhen die Sicherheit bei der Herstellung einer Verbindung mit Hilfe des Anschlussstücks.holding means to prevent expulsion of the tubular elements increase the Safety in making a connection using the fitting.

Eine Profilierung der Anschlusskörper nach Anspruch 2 verringert einen Druckverlust im Bereich der An- und Abströmzonen des Anschlussstücks.A Profiling the connection body according to claim 2 reduces a pressure loss in the range of and outflow zones of the connector.

Ein Sperrring nach Anspruch 3 ist kostengünstig und sicher.One Locking ring according to claim 3 is inexpensive and safe.

Die Vorteile der Rohrverbindungseinrichtung nach Anspruch 4 entsprechen denjenigen, die oben im Zusammenhang mit dem erfindungsgemäßen Anschlussstück schon genannt wurden. Zudem sind die Rohrelemente besonders widerstandsfähig.The Advantages of the pipe connection device according to claim 4 correspond those already above in connection with the connector according to the invention were called. In addition, the tube elements are particularly resistant.

Eine Haftvermittlerschicht nach Anspruch 5 ermöglicht eine sichere Verbindung zwischen dem Metallrohr und dem Innenrohr eines Rohrelements aus einem Metall-Kunststoff-Verbund.A Adhesive layer according to claim 5 enables a secure connection between the metal tube and the inner tube of a tubular element a metal-plastic composite.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert. In dieser zeigen:One embodiment The invention will be explained in more detail with reference to the drawing. In show this:

1 eine teilweise aufgebrochene Rohr-Verbindungseinrichtung mit einem Anschlussstück und zwei Rohrelementen; 1 a partially broken pipe connection device with a connection piece and two pipe elements;

2 eine Ausschnittsvergrößerung aus 1 im Bereich einer in ein Rohrelement hineinragenden Stirnwand eines Anschlusskörpers des Anschlussstücks; 2 an excerpt from 1 in the region of an end wall of a connection body of the connection piece projecting into a tubular element;

3 eine weitere Ausschnittsvergrößerung aus 1 im Bereich eines Haltemittels des Anschlussstücks zum Verhindern eines Ausschiebens eines der Rohrelemente. 3 another enlarged detail 1 in the region of a holding means of the connection piece for preventing a pushing out of one of the tube elements.

Eine Rohrverbindungseinrichtung 1 ist teilweise aufgebrochen im Längsschnitt in 1 dargestellt. Sie umfasst ein Anschlussstück 2 aus Kunststoff und zwei Rohrelemente 3, 4, welche über das Anschlussstück 2 fluiddicht miteinander verbunden sind.A pipe connection device 1 is partially broken in longitudinal section in 1 shown. It includes a connector 2 made of plastic and two tube elements 3 . 4 , which over the connection piece 2 are fluid-tightly interconnected.

Das Anschlussstück 2 ist in Bezug auf eine Mittelebene 5 spiegelsymmetrisch, welche senkrecht auf einer Längsachse 6 der Rohrverbindungseinrichtung 1 steht. Beiderseits der Mittelebene 5 erstreckt sich axial jeweils ein Anschlussstutzen 7, 8 des Anschlussstücks 2, der jeweils in eines der beiden Rohrelemente 3, 4 eingeschoben ist. In der Mittelebene 5 erstreckt sich zwischen den Anschlussstutzen 7, 8 ein über diese radial überstehender und als Umfangsbund ausgestalteter Anschlagbund 9, der einstückig an den Anschlussstutzen 7, 8 angeformt ist. Koaxial zu den Anschlussstutzen 7, 8 sind an den Anschlagbund 9 ebenfalls symmetrisch von der Mittelebene 5 ausgehend zwei Hülsenkörper 10, 11 angeformt, deren Erstreckung in Richtung der Längsachse 6 wesentlich geringer ist als die jenige der Anschlussstutzen 7, 8. Die Hülsenkörper 10, 11 weisen zu den ihnen benachbarten Anschlussstutzen 7, 8 einen Abstand auf, der nur geringfügig größer ist als die Wandstärke der Rohrelemente 3, 4. Die Hülsenkörper 10, 11 bilden daher gemeinsam mit dem Anschlagbund 9 sowie mit den ihnen benachbarten Abschnitten der Anschlussstutzen 7, 8 zwei ringförmige Einschubausnehmungen 12, 13 zur Aufnahme von Endabschnitten 14, 15 der Rohrelemente 3, 4.The connection piece 2 is in relation to a median plane 5 mirror-symmetrical, which is perpendicular to a longitudinal axis 6 the pipe connection device 1 stands. On both sides of the median plane 5 extends axially each a connecting piece 7 . 8th of the connector 2 , in each case in one of the two tubular elements 3 . 4 is inserted. In the middle plane 5 extends between the connecting pieces 7 . 8th an over this radially superior and designed as a circumferential collar stop collar 9 , which is integral with the connecting piece 7 . 8th is formed. Coaxial with the connecting pieces 7 . 8th are at the stop collar 9 also symmetrical from the median plane 5 starting from two sleeve bodies 10 . 11 formed, whose extension in the direction of the longitudinal axis 6 is much lower than the one who the connecting piece 7 . 8th , The sleeve body 10 . 11 point to the adjacent connecting pieces 7 . 8th a distance which is only slightly larger than the wall thickness of the tubular elements 3 . 4 , The sleeve body 10 . 11 therefore form together with the stop collar 9 as well as with the adjacent sections of the connecting piece 7 . 8th two annular insertion recesses 12 . 13 for receiving end sections 14 . 15 the pipe elements 3 . 4 ,

Wie insbesondere die Ausschnittsvergrößerung nach 2 zeigt, sind freie und in die Rohrelemente 3, 4 hineinragende Stirnwände 16, 17 der Anschlussstutzen 7, 8 strömungsgünstig derart profiliert, dass beim An- und Abströmen der innenliegenden Komponenten des Anschlussstücks 2 beim Fluid-/Gasdurchtritt durch die Rohrverbindungseinrichtung 1 Druckverluste gering gehalten werden.How the detail enlargement after 2 shows are free and in the tube elements 3 . 4 protruding end walls 16 . 17 the connecting piece 7 . 8th aerodynamically profiled in such a way that during inflow and outflow of the internal components of the connector 2 during fluid / gas passage through the pipe connection means 1 Pressure losses are kept low.

An den äußeren Umfangswänden der Anschlussstutzen 7, 8 ist jeweils eine Heizwendel 18, 19 angeordnet. Letztere sind über eine in der Zeichnung nicht näher dargestellte elektrische Verbindungsleitung mit einem an der äußeren Umfangswand des Anschlussstücks 2 angeordneten elektrischen Anschlusselement 20 verbunden.At the outer peripheral walls of the connecting piece 7 . 8th is in each case a heating coil 18 . 19 arranged. The latter are connected via an electrical connecting line, not shown in detail in the drawing, to one on the outer circumferential wall of the connecting piece 2 arranged electrical connection element 20 connected.

Die Hülsenkörper 10, 11 weisen in ihren den Anschlussstutzen 7, 8 zugewandten Innenwänden jeweils eine Umfangsnut 21, 22 auf, in welche jeweils ein Sperrring 23, 24 eingesetzt ist.The sleeve body 10 . 11 have in their the connecting piece 7 . 8th facing inner walls each have a circumferential groove 21 . 22 on, in each of which a locking ring 23 . 24 is used.

Die Sperrringe 23, 24 ragen in die ihnen zugeordneten Einschubausnehmungen 12, 13 hinein und sind gegen die jeweilige Ausschieberichtung der Rohrelemente 3, 4 aus den Einschubausnehmungen 12, 13 vorgebogen. Ein dem Endabschnitt 14 zugewandter Innenkantenbereich des in 1 links angeordneten Sperrrings 23 ist also nach rechts und der dem Anschlussstutzen 8 zugeordnete andere Sperrring 24 entsprechend in 1 nach links vorgebogen.The locking rings 23 . 24 protrude into their assigned Einschubausnehmungen 12 . 13 into and are against the respective Ausschieberichtung the pipe elements 3 . 4 from the slot recesses 12 . 13 pre-bent. A the end section 14 facing inner edge region of in 1 left-hand locking ring 23 So it is to the right and the connecting piece 8th assigned other locking ring 24 accordingly in 1 bent to the left.

Die Rohrelemente 3, 4 sind als Metall-Kunststoff-Verbunde ausgeführt, wie im Detailausschnitt nach 2 ersichtlich. Jedes Rohrelement 3, 4 umfasst ein Innenrohr 25 aus temperaturbeständigem Polyethylen (PERT). Das Innenrohr 25 ist über eine dieses außen umgebende Haftvermittlerschicht 26 mit einem das Innenrohr 25 außen umgebenen Metallrohr 27 aus Edelstahl verbunden. Das Metallrohr 27 seinerseits ist von einer Schutzlackschicht 28 außen umgeben, welche eine Deckschicht für die Rohrelemente 3, 4 darstellt.The pipe elements 3 . 4 are designed as metal-plastic composites, as in detail 2 seen. Each pipe element 3 . 4 includes an inner tube 25 made of temperature-resistant polyethylene (PERT). The inner tube 25 is about this outside surrounding adhesive layer 26 with one the inner tube 25 outside surrounded metal tube 27 made of stainless steel. The metal pipe 27 in turn is of a protective lacquer layer 28 Surrounded outside, which is a cover layer for the pipe elements 3 . 4 represents.

Die Rohrverbindungseinrichtung 1 wird folgendermaßen montiert: Zunächst werden die Innenwandbereiche der Rohrelemente 3, 4, welche mit den Anschlussstutzen 7, 8 in Kontakt treten sollen, gereinigt und zur Entfernung etwaiger Oxidationsschichten und/oder Verunreinigungen ggf. abgeschält. Anschließend werden die Endabschnitte 14, 15 der Rohrelemente 3, 4 in die Einschubausnehmungen 12, 13 eingeschoben, bis die dem Anschlussstück 2 zugewandten Stirnwände der Rohrelemente 3, 4 am Anschlagbund 9 anliegen. Die nach Art eines Widerhakens mit den Außenwänden der Rohrelemente 3, 4 zusammenwirkenden Sperrringe 23, 24 verhindern dann ein unerwünschtes Ausschieben der Rohrelemente 3, 4 aus dem Anschlussstück 2. Nun wird das Anschlusselement 20 mit einer Stromquelle verbunden. Die Heizwendeln 18, 19 dienen als Widerstandsheizung und heizen Schweißzonen in ihrer Umgebung auf. Hierdurch werden die Innenwände der Rohrelemente 3, 4 mit den äußeren Umfangswänden der Anschlussstutzen 7, 8 verschweißt. Anschließend wird der Stromfluss durch die Heizwendel 18, 19 wieder deaktiviert und die Rohrverbindungseinrichtung 1 kühlt ab.The pipe connection device 1 is mounted as follows: First, the inner wall portions of the tubular elements 3 . 4 , which with the connecting pieces 7 . 8th should come into contact, cleaned and peeled off if necessary to remove any oxidation layers and / or impurities. Subsequently, the end sections 14 . 15 the pipe elements 3 . 4 in the slot recesses 12 . 13 pushed in until the fitting 2 facing end walls of the tubular elements 3 . 4 at the stop collar 9 issue. The kind of a cons hook with the outer walls of the tubular elements 3 . 4 cooperating locking rings 23 . 24 then prevent unwanted expulsion of the tubular elements 3 . 4 from the connector 2 , Now the connection element 20 connected to a power source. The heating coils 18 . 19 serve as resistance heating and heat up welding zones in their environment. As a result, the inner walls of the pipe elements 3 . 4 with the outer peripheral walls of the connecting piece 7 . 8th welded. Subsequently, the current flow through the heating coil 18 . 19 disabled again and the pipe connection device 1 cools down.

Folgende weitere Materialvarianten sind für das Innenrohr 25 möglich: Polyethylen (PE), Polypropylen (PP) sowie Polybuten (PB).The following further material variants are for the inner tube 25 possible: polyethylene (PE), polypropylene (PP) and polybutene (PB).

Das Metallrohr 27 kann auch aus Aluminium gefertigt sein. Auch Mehrschichtverbindungen der genannten Materialien für das Innenrohr 25 und das Metallrohr 27 sind möglich.The metal pipe 27 can also be made of aluminum. Also multi-layer compounds of the materials mentioned for the inner tube 25 and the metal tube 27 are possible.

Die Rohrverbindungseinrichtung 1 ist nicht auf als Metall-Kunststoff-Verbund ausgeführte Rohrelemente 3, 4 beschränkt. Alternativ können auch Voll-Kunststoffrohre miteinander verbunden werden. Beispielsweise können die Rohrelemente aus vernetztem Polyethylen (PE-X), Polyethylen (PE), Polypropylen (PP) oder Polybuten (PB) gefertigt sein. Insbesondere in diesem Falle können die Hülsenkörper 10, 11 auch Metallmanschetten, z. B. mit einem Schnappverschluss, aufweisen, die während des Schweißvorgangs die Rohrverbindungseinrichtung stabilisieren. Derartige Metallmanschetten können natürlich auch bei den Rohrelementen 3, 4 eingesetzt sein.The pipe connection device 1 is not on tube elements designed as a metal-plastic composite 3 . 4 limited. Alternatively, full plastic pipes can be connected to each other. For example, the pipe elements can be made of cross-linked polyethylene (PE-X), polyethylene (PE), polypropylene (PP) or polybutene (PB). In particular, in this case, the sleeve body 10 . 11 also metal cuffs, z. B. with a snap closure, which stabilize the pipe connection device during the welding operation. Of course, such metal sleeves can also be used in the tubular elements 3 . 4 be used.

Das Anschlussstück 2 kann einen integrierten Erkennungswiderstand zur automatischen Einstellung der Schweißparameter sowie Kontrollnippel zur Anzeige einer vollständigen Bewerkstelligung der Schweißverbindung aufweisen. Diese Maßnahmen sind im Zusammenhang mit anderen Typen von Anschlussstücken bekannt.The connection piece 2 may have an integrated detection resistor for automatic adjustment of the welding parameters as well as control nipples to indicate complete weld integrity. These measures are known in connection with other types of fittings.

Das dargestellte Ausführungsbeispiel weist ein Anschlussstück 2 zur Verbindung zweier Rohrelemente 3, 4 auf. Weitere, nicht dargestellte Ausführungsbeispiele von Anschlussstücken können z. B. als Bogenstück ausgeführt sein, sodass die Längsachsen der dem Anschlussstück zugewandten Endabschnitte der Rohrelemente nicht miteinander fluchten, sondern einen Winkel, z. B. 90°, zueinander einnehmen oder auch zueinander parallel oder windschief sind. Weitere Ausführungsbeispiele von erfindungsgemäßen Anschlussstücken, die ebenfalls nicht dargestellt sind, dienen zur Verbindung von mehr als zwei Rohrelementen. Eine Ausführung zur Verbindung von drei Rohrelementen kann z. B. in Form eines T-Stücks ausgestaltet sein, wobei von einem zentralen Grundkörper drei Anschlussstutzen nach Art der Anschlussstutzen 7, 8 ausgehen. Analog kann ein Kreuzstück zur Verbindung von vier Rohrelementen mit vier Anschlussstutzen nach Art der Anschlussstutzen 7, 8 ausgebildet sein, die von einem zentralen Grundkörper des Anschlussstücks ausgehen. Diese weiteren Ausführungsbeispiele sollen nicht beschränken.The illustrated embodiment has a connection piece 2 for connecting two pipe elements 3 . 4 on. Further, not shown embodiments of fittings can, for. B. be designed as a curved piece, so that the longitudinal axes of the connecting piece facing end portions of the pipe elements are not aligned, but an angle, z. B. 90 °, to each other or are parallel to each other or skewed. Further embodiments of connecting pieces according to the invention, which are also not shown, serve to connect more than two tubular elements. An embodiment for connecting three pipe elements may, for. B. be designed in the form of a T-piece, wherein from a central body three connecting pieces on the type of the connecting piece 7 . 8th out. Similarly, a crosspiece for connecting four pipe elements with four connecting pieces on the type of the connecting piece 7 . 8th be formed, which emanate from a central body of the connector. These further embodiments are not intended to be limiting.

Auch andere Formen des erfindungsgemäßen Anschlussstücks mit entsprechenden Anschlusskörpern zum Einschieben in die zu verbindenden Rohrelemente sind möglich.Also other forms of the connector according to the invention with corresponding connection bodies for insertion into the pipe elements to be connected are possible.

Claims (5)

Anschlussstück (2) für eine fluiddichte Verbindung zwischen mindestens zwei Rohrelementen (3, 4): -a- mit einem ersten Anschlusskörper (7) mit einem ersten Heizelement (18) zur Kunststoffschweißverbindung des ersten Anschlusskörpers (7) mit einem Kunststoffabschnitt des ersten Rohrelements (3), -b- mit einem zweiten Anschlusskörper (8) mit einem zweiten Heizelement (19) zur Kunststoffschweißverbindung des zweiten Anschlusskörpers (8) mit einem Kunststoffabschnitt des zweiten Rohrelements (4), wobei -c- die beiden Anschlusskörper (7, 8) als Anschlussstutzen zum Einschieben in die beiden Rohrelemente (3, 4) ausgestaltet sind und -d- die Heizelemente (18, 19) derart angeordnet sind, dass beim Heizen im Bereich einer äußeren Umfangswand der beiden Anschlusskörper (7, 8) Schweißzonen zur Kunststoffschweißverbindung der Anschlusskörper (7, 8) mit den beiden Rohrelementen (3, 4) erzeugt werden, -e- zwischen den Anschlusskörpern (7, 8) mindestens ein Anschlagbund (9) für die dem Anschlussstück (2) zugewandten Stirnwände von Endabschnitten (14, 15) der miteinander zu verbindenden Rohrelemente (3, 4) angeordnet ist, -f- die Heizelemente (18, 19) als Widerstandsheizelemente ausgeführt sind, wobei Anschlussleitungen (20) der Heizelemente (18, 19) durch den Anschlagbund (9) geführt sind, dadurch gekennzeichnet, dass -g- im Bereich des mindestens einen Anschlagbundes (9) an diesen mindestens ein Hülsenkörper (10, 11) derart angeformt ist, dass ringförmige Einschubausnehmungen (12, 13) zur Aufnahme der Endabschnitte (14, 15) der miteinander zu verbindenden Rohrelemente (3, 4) ausgebildet sind, und -h- in den Einschubausnehmungen (12, 13) Haltemittel (23, 24) zum Verhindern eines Ausschiebens der miteinander zu verbindenden Rohrelemente (3, 4) nach dem Einschieben vorgesehen sind.Connector ( 2 ) for a fluid-tight connection between at least two tubular elements ( 3 . 4 ): -a- with a first connector body ( 7 ) with a first heating element ( 18 ) to the plastic weld joint of the first connection body ( 7 ) with a plastic portion of the first tubular element ( 3 ), -b- with a second connection body ( 8th ) with a second heating element ( 19 ) to the plastic weld joint of the second connection body ( 8th ) with a plastic portion of the second tubular element ( 4 ), where -c- the two connecting bodies ( 7 . 8th ) as a connecting piece for insertion into the two tube elements ( 3 . 4 ) are designed and -d- the heating elements ( 18 . 19 ) are arranged such that when heating in the region of an outer peripheral wall of the two connection body ( 7 . 8th ) Welding zones for plastic welding connection of the connection body ( 7 . 8th ) with the two tubular elements ( 3 . 4 ), -e- between the connection bodies ( 7 . 8th ) at least one stop collar ( 9 ) for the fitting ( 2 ) facing end walls of end portions ( 14 . 15 ) of the pipe elements to be connected to each other ( 3 . 4 ) is arranged, the heating elements ( 18 . 19 ) are designed as resistance heating elements, wherein connection lines ( 20 ) of the heating elements ( 18 . 19 ) by the stop collar ( 9 ), characterized in that -g- in the region of the at least one stop collar ( 9 ) to this at least one sleeve body ( 10 . 11 ) is formed such that annular insertion recesses ( 12 . 13 ) for receiving the end sections ( 14 . 15 ) of the pipe elements to be connected to each other ( 3 . 4 ) are formed, and -h- in the insertion recesses ( 12 . 13 ) Holding means ( 23 . 24 ) for preventing a pushing out of the pipe elements to be connected ( 3 . 4 ) are provided after insertion. Anschlussstück nach Anspruch 1, dadurch gekennzeichnet, dass die Anschlusskörper (7, 8) im Bereich von freien und in die Rohrelemente (7, 8) hineinragenden Stirnwänden (16, 17) strömungsgünstig profiliert sind.Connecting piece according to claim 1, characterized ge indicates that the connecting bodies ( 7 . 8th ) in the area of free and in the tubular elements ( 7 . 8th ) projecting end walls ( 16 . 17 ) are profiled aerodynamically. Anschlussstück nach Anspruch 2, dadurch gekennzeichnet, dass das Haltemittel (23, 24) als in eine Umfangsnut (21, 22) des Hülsenkörpers (10, 11) eingesetzter, in die jeweilige Einschubausnehmung (12, 13) hineinragender und vorzugsweise gegen die Ausschieberichtung vorgebogener Sperrring ausgebildet ist.Connecting piece according to claim 2, characterized in that the holding means ( 23 . 24 ) than in a circumferential groove ( 21 . 22 ) of the sleeve body ( 10 . 11 ) Inserted into the respective Einschubausnehmung ( 12 . 13 ) is formed protruding and preferably pre-bent against the Ausschieberichtung locking ring. Rohrverbindungseinrichtung (1) -a- mit einem Anschlussstück (2) nach einem der Ansprüche 1 bis 3, -b- mit zwei Rohrelementen (3, 4), welche über das Anschlussstück (2) fluiddicht miteinander verbunden sind, gekennzeichnet durch -c- Rohrelemente (3, 4) aus PE-X-, PE-, PP- oder PB oder -d- Rohrelemente (3, 4) aus einem Metall-Kunststoffverbund, mit einem Innenrohr (25) aus PERT-, PE-, PP-, PB-Material oder aus einer mehrschichtigen Verbindung aus PERT-, PE-, PP-, PB-Material und -e- mit einem umgebenden Metallrohr (27), insbesondere aus Edelstahl und/oder Aluminium und vorzugsweise -f- mit einer diese umgebenden Schutzlackschicht (28).Pipe connection device ( 1 ) -a- with a fitting ( 2 ) according to one of claims 1 to 3, -b- with two tubular elements ( 3 . 4 ), which via the connector ( 2 ) are fluid-tightly interconnected, characterized by -c- tube elements ( 3 . 4 ) made of PE-X, PE, PP or PB or -d pipe elements ( 3 . 4 ) of a metal-plastic composite, with an inner tube ( 25 ) of PERT, PE, PP, PB material or a multi-layered compound of PERT, PE, PP, PB material and -e with a surrounding metal tube ( 27 ), in particular of stainless steel and / or aluminum and preferably -f- with a surrounding protective lacquer layer ( 28 ). Rohrverbindungseinrichtung nach Anspruch 4, dadurch gekennzeichnet, dass das Metallrohr (27) und das Innenrohr (25) über eine Haftvermittlerschicht (26) miteinander verbunden sind.Pipe connection device according to claim 4, characterized in that the metal pipe ( 27 ) and the inner tube ( 25 ) via a primer layer ( 26 ) are interconnected.
DE10345034A 2003-09-27 2003-09-27 Connecting piece for a fluid-tight connection between at least two pipe elements and pipe connecting device with such a connection piece Expired - Fee Related DE10345034B4 (en)

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DE10345034A DE10345034B4 (en) 2003-09-27 2003-09-27 Connecting piece for a fluid-tight connection between at least two pipe elements and pipe connecting device with such a connection piece

Applications Claiming Priority (1)

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DE10345034A DE10345034B4 (en) 2003-09-27 2003-09-27 Connecting piece for a fluid-tight connection between at least two pipe elements and pipe connecting device with such a connection piece

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DE102004027795A1 (en) 2004-06-08 2006-01-05 Friatec Ag Connecting arrangement, in particular for frictional bonding of at least one fiber composite component to another component
CN105927811B (en) * 2016-06-13 2018-06-26 浙江伟星新型建材股份有限公司 A kind of connection structure of fiber composite pipeline

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DE4220574A1 (en) * 1992-06-24 1994-01-05 Wirsbo Rohrprod Und Vertr Gmbh Connection with predictable strength between two thermoplastic pipes - has outer thermoplastic sleeve with embedded resistance winding and either sleeve or pipes only soften without fusing at welding temp.
DE4444097C2 (en) * 1994-12-10 1997-02-27 Unicor Rohrsysteme Gmbh Device for connecting at least two plastic-metal composite pipes by welding
EP0809064A1 (en) * 1996-05-24 1997-11-26 Nupi S.p.A. A heat-fusible pipe fitting
JP2000130680A (en) * 1998-10-22 2000-05-12 Nippon Comsys Corp Weld joint fitting

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Publication number Priority date Publication date Assignee Title
DE4220574A1 (en) * 1992-06-24 1994-01-05 Wirsbo Rohrprod Und Vertr Gmbh Connection with predictable strength between two thermoplastic pipes - has outer thermoplastic sleeve with embedded resistance winding and either sleeve or pipes only soften without fusing at welding temp.
DE4444097C2 (en) * 1994-12-10 1997-02-27 Unicor Rohrsysteme Gmbh Device for connecting at least two plastic-metal composite pipes by welding
EP0809064A1 (en) * 1996-05-24 1997-11-26 Nupi S.p.A. A heat-fusible pipe fitting
JP2000130680A (en) * 1998-10-22 2000-05-12 Nippon Comsys Corp Weld joint fitting

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JP 05322089 A, Zusammenfassung veröffentlicht in Pat. Abstr. of Japan vom 07.12.1993 *
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