Connecting device for media lines

Patent metadata

Field	Value
Publication number	US-11725762-B2
Application number	US-201917042818-A
Country	US
Kind code	B2
Filing date	Mar 28, 2019
Priority date	Mar 28, 2018
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

A connecting device for media lines including a coupling element, an insert part and a fastening element. The coupling element has a connection opening and a fluid channel; the insert part can be inserted into the connection opening; and the insert part can be fastened to the coupling element by the fastening element. The fastening element also has at least one control surface. When the insert part is inserted into the connection opening under the action of an installation force, the insert part acts upon the control surface in such a way that the fastening element is moved against a restoring force. If the installation force is sufficient, the insert part slides past the control surface and the fastening element interlockingly locks the insertion part. If the installation force is not sufficient, the fastening element presses the insert part back out of the connection opening.

First claim

The invention claimed is:

1. A connecting device for media lines, with at least one coupling element, at least one insertion part and at least one attachment element, wherein the coupling element features at least one connection opening and at least one fluid channel, wherein the insertion part can be inserted at least partly into the connection opening, and wherein the insertion part with the attachment element can be secured to the coupling element, wherein the attachment element is movably held against the coupling element, that the attachment element features at least two control surfaces, that upon insertion of the insertion part into the connection opening under the effect of an assembly force, the insertion part acts upon the control surfaces such that the attachment element is moved from a starting position opposite a restoring force, that the restoring force is effected by an at least partial elastic deformation of the attachment element, and that with sufficient assembly force, the insertion part slides past the control surfaces so that the attachment element is moved back into the starting position due to the effect of the restoring force and snaps in an interlocking manner with the insertion part, or that when the assembly force is not sufficient, the attachment element is moved under the effect of the restoring force back into the initial position and the insertion part is pressed at least partly out from the connection opening by means of the control surfaces, wherein the insertion part provides a connecting interface for a media line, wherein the attachment element is guided in at least one recess against the coupling element, the recess includes at least one web and that the web overlaps and stabilizes the recess, wherein the attachment element includes at least four snap-in surfaces, which in the snapped-in assembly state cooperate in an interlocking manner with the insertion part, wherein the attachment element features a plurality of lugs, wherein at least one snap-in surface is formed on each lug.

2. The connecting device ( 1 ) according to claim 1 , wherein the control surfaces have an inclination of between 30° and 50° to a plane of motion of the attachment element.

3. The connecting device according to claim 1 , wherein the recess includes between two and five webs.

4. The connecting device according to claim 1 , wherein the attachment element includes at least six snap-in surfaces, which in the snapped-in assembly state cooperate in an interlocking manner with the insertion part.

5. The connecting device according to claim 4 , wherein at least one control surface is formed on the lug.

6. The connecting device according to claim 4 , wherein at least one control surface is formed adjoining the snap-in surface.

7. The connecting device according to claim 1 , wherein the attachment element at least partly overlaps the coupling element so that a first end region and a second end region of the attachment element are disposed opposite each other.

8. The connecting device according to claim 7 , wherein in the first end region and/or in the second end region of the attachment element, at least one guide lug is formed, and that after a movement from the starting position along at least one corresponding guide surface, the guide lug slides along the coupling element, in particular so as to deform elastically the attachment element.

9. The connecting device according to claim 8 , wherein the guide surfaces cooperating with the first end region and with the second end region are inclined oppositely to each other.

10. The connecting device according to claim 8 , wherein the restoring force is adjusted by means of the selection of the material of the attachment element and/or by the alignment of the guide lugs and the guide surfaces.

11. The connecting device according to claim 8 , wherein the guide lug slides along the coupling element so as to deform elastically the attachment element.

12. The connecting device according to claim 7 , wherein the attachment element features at least one snap-in protrusion and that the snap-in protrusion in the assembled state engages in a snap-in setback at the insertion part.

13. The connecting device according to claim 1 , wherein the insertion part includes at least one flat section and that the connection opening features at least one corresponding flat section at the inner perimeter.

14. The connecting device according to claim 1 , wherein the attachment element includes at least one blocking edge, and that the blocking edge in the assembled state cooperates in an interlocking manner with the coupling element.

15. The connecting device according to claim 1 , wherein the attachment element produces a snap-in noise upon reaching the starting position.

16. The connecting device according to claim 1 , wherein the attachment element includes on at least one side, at least one circumferential guard edge.

17. The connecting device according to claim 1 , wherein the coupling element includes at least one alignment indicator for the insertion part.

18. The connecting device according to claim 1 , further comprising at least one rotation lock, configured to snap into the coupling element in an interlocking manner.

19. The connecting device according to claim 1 , wherein at least one web limits the movement of the attachment element.

20. The connecting device according to claim 1 , wherein the snap-in surfaces interact with an attachment collar on the insertion part.

Assignees

• Voss Automotive Gmbh

Inventors

• Waschkewitz Markus
• Hagen Harald
• Klehr Adrian
• Engelhard Frank
• Hess Jochem-Andreas
• Rosowski Evelin
• Hatoum Ihab
• Hasberg Markus
• Brombach Michael

Classifications

• F16L37/0885 Primary

  with access to the split elastic ring from a radial or tangential opening in the coupling · CPC title

• F16L2201/10

  Indicators for correct coupling · CPC title

• F16L37/088 Primary

  by means of a split elastic ring · CPC title

• F16L2201/60

  Identification or marking · CPC title