SHUT-OFF VALVE FOR THE PLUMBING SECTOR

• US 20130048892A1
• Filed: 04/27/2011
• Published: 02/28/2013
• Est. Priority Date: 08/10/2010
• Status: Active Grant

• Current Assignee: Viega Technology GmbH & Co., KG
• Original Assignee: Viega GmbH & Company KG
• Inventors: Winterholler, Arthur
• Granted Patent: US 9,074,690 B2
• Time in Patent Office: Days
• US Class Current: 251/213
• CPC Class Codes: F16K 11/0876 one connecting conduit having the same axis as the spindle
• CPC Class Codes: F16K 11/18 with separate operating movements for separate closure members
• CPC Class Codes: F16K 5/0605 with particular plug arrangements, e.g. particular shape or built-in means
• CPC Class Codes: F16K 5/0647 Spindles or actuating means
• CPC Class Codes: Y10T 29/49405 Valve or choke making

Abstract

A shut-off valve for the plumbing sector for shutting off a line through which a fluid can flow that preferably includes a housing having at least two connecting pieces. A flow path is defined from one of the connecting pieces through the housing to another of the connecting pieces, and a shut-off body is disposed rotatably in the housing with a single shut-off section running crosswise to the flow path. Preferably, the shut-off segment is constituted as a spherical segment, and the shut-off body can be moved between a closed position in which the flow path is completely blocked to only one of the connecting pieces and an open position in which the flow path is completely clear. A switching shaft which is rotatably mounted in the housing and is connected in a rotationally fixed manner at its one end to the shut-off body.

Claims

1-20. -20. (canceled)

21. A shut-off valve for the plumbing sector for shutting off a line through which a fluid can flow, comprising:

a housing comprising at least two connecting pieces, wherein a flow path is defined from one of the connecting pieces through the housing to another of the connecting pieces;

a shut-off body disposed rotatably in the housing with at least one shut-off section running crosswise to the flow path, wherein the shut-off body is movable between a closed position in which the flow path is completely blocked and an open position in which the flow path is completely clear, wherein the at least one shut-off section at least partially blocks the flow path to one of the connecting pieces in the closed position;

a switching shaft which is rotatably mounted in the housing and which is connected in a rotationally fixed manner at its one end to the shut-off body; and

a hollow spindle mounted in the switching shaft, which is constituted as a hollow shaft, is provided with an inlet opening at its end facing the shut-off body, an outlet opening at its end facing away from the shut-off body and a drainage channel leading from the inlet opening to the outlet opening, wherein the hollow spindle can be displaced relative to the switching shaft from a first position, in which the drainage channel is in a fluid connection with the flow path via the inlet opening, into second position, in which the inlet opening is closed;

wherein the shut-off body comprises only a single shut-off section, wherein the shut-off body in the closed position blocks the flow path only to one of the connecting pieces,

wherein the single shut-off section completely blocks the flow path, and

wherein the single shut-off section is constituted as a spherical segment.

22. The shut-off valve according to claim 21, wherein the hollow spindle is formed by at least two spindle parts connected rotatably to one another.

23. The shut-off valve according to claim 21, wherein the shut-off section is constituted as a segment of one of a hollow sphere and a solid sphere.

24. The shut-off valve according to claim 21, wherein the shut-off body comprises a first connection section, by means of which the shut-off section is connected in a rotationally fixed manner to the switching shaft.

25. The shut-off valve according to claim 21, wherein the shut-off body is connected rotatably at its underside facing away from the switching shaft to the housing by means of a bearing element.

26. The shut-off valve according to claim 25, wherein the shut-off body comprises a second connection section, by means of which the shut-off section is connected in a rotationally fixed manner to the bearing element.

27. The shut-off valve according to claim 24, wherein the shut-off section and at least one of the first and second connection section are constituted in one piece with one another.

28. The shut-off valve according to claim 21, wherein the shut-off body is a sheet-metal shaped part, which has a uniform wall thickness.

29. The shut-off valve according to claim 21, wherein the housing comprises a first housing part, which contains one of the connecting pieces, and a second housing part, which contains another of the connecting pieces, wherein the two housing parts are connected to one another via an intermediate piece.

30. The shut-off valve according to claim 29, wherein the intermediate piece accommodates the switching shaft.

31. The shut-off valve according to claim 29, wherein the two housing parts each comprise a seating section for the sealing seating of the shut-off section and the shut-off body can be rotated via the switching shaft through at least 180°

from a first closed position, in which the shut-off section abuts against the seating section of one of the housing parts, into a second closed position, in which the shut-off section abuts against the seating section of the other of the housing parts.

32. The shut-off valve according to claim 21, wherein the hollow spindle comprises a section which, at the end of the switching shaft facing away from the shut-off body, projects out of the latter.

33. The shut-off valve according to claim 32, wherein the section is provided with one of a plurality of peripheral projections and a hexagon formed thereon.

34. The shut-off valve according to claim 21, wherein the hollow spindle is formed by at least two spindle parts connected rotatably to one another.

35. The shut-off valve according to claim 21, wherein a handle is connected in a rotationally fixed manner to the switching shaft.

36. The shut-off valve according to claim 35, wherein the handle radially surrounds the section of the hollow spindle that projects out of the switching shaft.

37. The shut-off valve according to claim 35, wherein the handle comprises a removable cap which covers one of the switching shaft and the hollow spindle in the axial direction.

38. The shut-off valve according to claim 21, wherein the hollow spindle is movable in the direction of the shut-off body from the second position, in which the inlet opening is closed, into the first position, in which the drainage channel is in a fluid connection with the flow path via the inlet opening.