Clamping ring, sliding sleeve, arrangement, and method for producing a non-releasable connection

Patent metadata

Field	Value
Publication number	US-9920865-B2
Application number	US-201415109701-A
Country	US
Kind code	B2
Filing date	Dec 17, 2014
Priority date	Jan 3, 2014
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A clamping ring for a non-releasable workpiece connection includes an inner circumferential surface, an outer circumferential surface, a proximal end, and a distal end, said inner circumferential surface having a cylindrical design in at least some sections. A sliding sleeve for a non-releasable workpiece connection includes an inner circumferential surface, an outer circumferential surface, a proximal end, and a distal end. An arrangement for producing a non-releasable workpiece connection and a method for producing a non-releasable workpiece connection are provided.

First claim

The invention claimed is:

1. An arrangement for producing a non-releasable workpiece connection, comprising:
a fitting,
a clamping ring, and
a sliding sleeve,
wherein the fitting has a profiled support body,
wherein the clamping ring has an inner circumferential surface and an outer circumferential surface as well as a proximal end and a distal end,
wherein the sliding sleeve has an inner circumferential surface and an outer circumferential surface as well as a proximal end and a distal end,
wherein
at least two transmission regions which are spaced apart from each other in an axial direction are arranged on the outer circumferential surface of the clamping ring and on the inner circumferential surface of the sliding sleeve respectively,
each transmission region of the clamping ring is allocated to a transmission region of the sliding sleeve,
the transmission regions of the clamping ring and the sliding sleeve have cone segment-shaped portions,
the transmission regions of the clamping ring and the sliding sleeve have cylindrical portions,
wherein due to the distribution of the transmission regions, during an axial sliding of the sliding sleeve a pressing force can be exerted in sections over an axial length of the clamping ring, and
wherein the cylindrical portions represent contact surfaces between the clamping ring and the sliding sleeve in the completed connection and can maintain a radial pressing force after the axial sliding.

2. The arrangement according to claim 1 , wherein at least two of the cone segment-shaped portions at the clamping ring and at the sliding sleeve have the same cone opening angle and the same axial length.

3. The arrangement according to claim 2 , wherein the respective diameter of the individual cylindrical portions at the clamping ring increases from the distal end to the proximal end and the respective minimum diameter of the individual cylindrical portions at the sliding sleeve increases from the distal end to the proximal end.

4. The arrangement according to claim 2 , wherein the cone segment-shaped portions at the clamping ring and at the sliding sleeve are formed ring shaped in circumference or several cone segment-shaped portions at the clamping ring and at the sliding sleeve are arranged on a trajectory which is ring shaped in circumference.

5. The arrangement according to claim 2 , wherein the cone segment-shaped portions at the clamping ring and at the sliding sleeve are arranged at regular axial distances.

6. The arrangement according to claim 2 , wherein the clamping ring has a slot at least over a part of the length in the axial direction.

7. The arrangement according to claim 1 , wherein a respective diameter of the individual cylindrical portions at the clamping ring increases from the distal end to the proximal end and a respective minimum diameter of the individual cylindrical portions at the sliding sleeve increases from the distal end to the proximal end.

8. The arrangement according to claim 7 , wherein the cone segment-shaped portions at the clamping ring and at the sliding sleeve are formed ring shaped in circumference or several cone segment-shaped portions at the clamping ring and at the sliding sleeve are arranged on a trajectory which is ring shaped in circumference.

9. The arrangement according to claim 7 , wherein the cone segment-shaped portions at the clamping ring and at the sliding sleeve are arranged at regular axial distances.

10. The arrangement according to claim 7 , wherein the clamping ring has a slot at least over a part of the length in the axial direction.

11. The arrangement according to claim 1 , wherein the cone segment-shaped portions at the clamping ring and at the sliding sleeve are formed ring shaped in circumference or several cone segment-shaped portions at the clamping ring and at the sliding sleeve are arranged on a trajectory which is ring shaped in circumference.

12. The arrangement according to claim 11 , wherein the cone segment-shaped portions at the clamping ring and at the sliding sleeve are arranged at regular axial distances.

13. The arrangement according to claim 11 , wherein the clamping ring has a slot at least over a part of the length in the axial direction.

14. The arrangement according to claim 1 , wherein the cone segment-shaped portions at the clamping ring and at the sliding sleeve are arranged at regular axial distances.

15. The arrangement according to claim 14 , wherein the clamping ring has a slot at least over a part of the length in the axial direction.

16. The arrangement according to claim 1 , wherein the clamping ring has a slot at least over a part of the length in the axial direction.

17. A method for producing a non-releasable workpiece connection between a fitting, a pipe, a clamping ring and a sliding sleeve, comprising:
providing the fitting with a profiled support body and
arranging the clamping ring on the fitting,
introducing the pipe between the clamping ring and the support body of the fitting,
allocating at least two transmission regions to each other and spacing the transmission regions apart from each other in an axial direction and bringing them into contact with cone segment-shaped portions and with cylindrical portions on an outer circumferential surface of the clamping ring and on an inner circumferential surface of the sliding sleeve respectively and
exerting a pressing force directed radially inwards on the pipe against the support body by the transmission regions during an axial sliding of the sliding sleeve onto the clamping ring,
exerting a pressing force in sections over an axial length of the clamping ring, during the axial sliding of the sliding sleeve, due to the distribution of the transmission regions, and
wherein the cylindrical portions represent the contact surfaces between the clamping ring and the sliding sleeve in the completed connection and maintain a radial pressing force after the axial sliding.

18. The method according to claim 17 , wherein approximately the same radial displacement of the pipe is generated by several transmission regions during the axial sliding, respectively.

Assignees

• Viega Tech Gmbh & Co Kg

Inventors

• Schroeder Klaus
• Stahlschmidt Matthias
• Bohr Karsten
• Sinoplu Sudi
• Schmitt Detlev

Classifications

• F16L13/146 Primary

  by an axially moveable sleeve · CPC title

• F16L33/225

  a sleeve being movable axially · CPC title