Self-locking membrane system
AssigneeProMinent GmbH
InventorJochen Kinna
Life of this patent
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Abstract
A membrane system comprising a membrane and connecting elements for connecting the membrane to a membrane pump for conveying a fluid, which membrane pump has a drive shaft designed for an oscillating translatory movement perpendicular to the plane of the membrane during operation of the membrane pump and has an external thread at an end portion for engagement with the membrane system by screwing. To ensure a secure and torque-proof connection between the membrane and the connecting element to be screwed to a drive shaft, the connecting elements comprise a threaded socket, a thrust ring and a thrust plate.
Claims9
A membrane system comprising a membrane and connecting elements for connecting the membrane to a membrane pump for conveying a fluid, said membrane pump has a drive shaft designed for an oscillating translatory movement perpendicular to the plane of the membrane during operation of the membrane pump and has an external thread at an end portion for engagement with the membrane system by screwing,
- wherein the connecting elements comprise a threaded socket, a thrust ring and a thrust plate,
- wherein the threaded socket
- has a cylindrical section arranged coaxially with an axis perpendicular to the plane of the membrane,
- is fixedly or detachably connected to the membrane,
- on the outside of the circumferential surface of its cylindrical section has a socket male thread, and
- on the inside of the circumferential surface of its cylindrical section has a socket female thread,
- wherein the thrust ring
- has a cylindrical portion arranged coaxially with the cylindrical portion of the threaded socket, and
- on the inner side of the circumferential surface of its cylindrical section has a thrust ring female thread which is formed as a mating thread to the socket male thread of the threaded socket,
- wherein the thrust plate
- has a cylindrical section arranged coaxially with the cylindrical section of the threaded socket,
- on the outside of the circumferential surface of its cylindrical portion, has a thrust plate male thread formed as a mating thread to the socket female thread of the threaded socket, and
- on the inside of the circumferential surface of its cylindrical portion, a thrust plate female thread adapted to be connected to the male thread at an end portion of a drive shaft of a membrane pump, wherein the thrust plate male thread of the thrust plate and the socket female thread of the threaded socket formed as a mating thread thereof have a different thread pitch, a different thread rotation direction, or both a different thread pitch and a different thread rotation direction than the thrust ring female thread of the thrust ring and the socket male thread of the threaded socket formed as a mating thread thereof, and
- wherein the thrust plate can be connected or is connected to the thrust ring in a torque-proof manner via a connecting section.
Dependencies are inferred from the claim text.