Arrangement for producing a pipe connection and holding element for such an arrangement

Patent metadata

Field	Value
Publication number	US-10330231-B2
Application number	US-201615270056-A
Country	US
Kind code	B2
Filing date	Sep 20, 2016
Priority date	Sep 21, 2015
Publication date	Jun 25, 2019
Grant date	Jun 25, 2019

Abstract

A pipe connection assembly having a fitting, an end section of the fitting for receiving a pipe end, a sealing ring, a separating ring, a cutting ring and a holding element, wherein the fitting has an inner section with an inner diameter adapted to the outer diameter of the pipe end to be received, wherein the end section has an inner contour tapered in sections starting from the distal end, wherein the sealing ring, the separating ring and the cutting ring are arranged such that they are axially movable inside the end section of the fitting, and wherein the holding element has an inner thread for screwing onto an outer thread formed on the fitting and a stop element protruding inwards for abutment against the arrangement of the sealing ring, the separating ring and the cutting ring.

First claim

The invention claimed is:

1. A pipe connection assembly, comprising:
a fitting,
an end section of the fitting for receiving a pipe end,
a sealing ring,
a separating ring,
a cutting ring and
a holding element,
wherein the fitting has an inner section with an inner diameter adapted to an outer diameter of the pipe end to be received,
wherein the end section has an inner contour tapered in sections starting from a distal end,
wherein the sealing ring, the separating ring and the cutting ring are arranged such that they are axially movable inside the end section of the fitting, and
wherein the holding element has an inner thread for screwing onto an outer thread formed on the fitting and a stop element protruding inwards for abutment against an arrangement of the sealing ring, the separating ring and the cutting ring,
wherein the holding element is produced by forming from a metal sheet, and
wherein the inner thread of the holding element is in sections formed as a circumferential indentation protruding inwards, wherein between said sections an otherwise cylindrical shape of the holding element is maintained.

2. The pipe connection assembly according to claim 1 , wherein a wall thickness of the holding element is up to 5 mm.

3. The pipe connection assembly according to claim 1 , wherein a material of the holding element is selected from a group consisting of structural steel, stainless steel, high-grade steel, copper, aluminum, and brass.

4. The pipe connection assembly according to claim 1 , wherein the inner thread of the holding element is at least in sections formed as a circumferential indentation protruding inwards.

5. The pipe connection assembly according to claim 4 , wherein the outer thread of the fitting is formed as a circumferential indentation.

6. The pipe connection assembly according to claim 4 , wherein an axial width of the indentation is more than 1 mm.

7. The pipe connection assembly according to claim 1 , wherein a pitch of the thread is steep enough such that after a rotation by 180°, an axial movement of the arrangement consisting of the sealing ring, the separating ring and the cutting ring is sufficient for a tight and stable connection to be produced between the pipe end and the fitting.

8. The pipe connection assembly according to claim 1 , wherein the holding element has at least one opening for attaching a tool.

9. The pipe connection assembly according to claim 8 , wherein the at least one opening is arranged overlapping with a section of the outer thread of the fitting when the holding element is screwed on.

10. The pipe connection assembly according to claim 1 ,
wherein at least one latching nose is arranged on the outside of the fitting,
wherein at least one recess is arranged on a side of the holding element opposite the stop element, and
wherein the at least one latching nose and the at least one recess are engaged with one another when the holding element is fully screwed on.

Assignees

• Viega Tech Gmbh & Co Kg

Inventors

• Meissner Kai-Michael

Classifications

• F16L19/08 Primary

  with metal rings which bite into the wall of the pipe {(F16L19/045 takes precedence)} · CPC title

• F16L47/08

  with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket · CPC title

• F16L37/091 Primary

  by means of a ring provided with teeth or fingers · CPC title