| 摘要 |
<p>The invention is a device for making a detachable tube-joint for example, for supporting structures, gas and liquid transportation pipes; the said device comprising an at least partly threaded shank (1) with a ring (2, 3, and 20, 30) at both ends and an appliance for moving the shank (1), located at the central part of the shank(1), one of the rings (2, 3 and 20, 30) being threaded and connected to the shank (1) by the thread, and both rings (2, 3 and 20, 30) pressing a springing retainer (4, 5 and 40, 50) to the internal wall of the tube (7a, 7b), and the end surface (4b, 5b and 40b, 50b) of the retainer (4, 5 and 40, 50) resting on a supporting surface perpendicular to the axis (14), wherein the springing retainer (4, 5) has a tubular shape outside and a hollow inside and the springing (4, 5) retainer has a coned surface (4c, 5c) inside, and it has a slit (4a, 5a) along at least one of its generating lines, the ring (2, 3) is placed inside the retainer (4, 5) and the rings (2, 3) are equipped with balls (9) on their outside, resting on the internal coned surface (4c, 5c) of the retainers (4, 5) and the device has a construction preventing the threaded ring (2) and the respective retainer (4) belonging to this threaded ring (2) turning away with respect to each other, or the springing retainer (40, 50) is made of an elastic material and is placed around the ring (20, 30), and both rings (20, 30) are constructed in a way suitable for gripping the respective elastic retainers (40, 50) and suitable for the axial compression of the retainer (40, 50<PDAT</p> |
