DE873779C - Joint piece for pipelines, in particular for supply lines and discharges of heating plates or molds of hydraulic presses - Google Patents

Description

The invention relates to a joint piece or movable feed piece for lines for liquids, vapors or gases, especially those lines, the changing temperatures, e.g. B: temperature increases or decreases, are subject. In particular, the new device is suitable e.g. for moving Heating uiid cooling lines.

According to the invention the connector is designed so that it completely from axial pressures, namely from the piston pressure of the movable tube as well as the packing pressure against the movable tube which is passed through the connecting links arise, is relieved, while otherwise the packing only through the specific Surface pressure of the medium contained inside the pipe system is claimed.

In the drawing, an embodiment of the new Geletvk is piece shown in section. Here, the reference symbol; i denotes a stationary one Part of the pipeline, the reference number 2 a movable, for example rotatable part the pipeline. These two parts are connected to each other in a fol-bender way: The - fixed Rahrleitungteil i carries at its end a housing-like widened Head 3, in which the q with a rim. reinforced end of the movable pipe part 2 is inserted. A base ring 5 is placed on the rim ring, some of which also sits on the paragraph 6 of the end sleeve 3. Above the base ring 5 is also a Sleeve 7 pushed, .the with external thread 8 in the corresponding internal thread .des Housing 3 is screwed and rests on sealing rings 9, which on! The paragraph : 6 of the housing 3 are placed. Between the sleeve 7 and the movable pipe part 2 packing rings io are inserted, on which an upper I-Ialtering, zii rests. A threaded cap 1z is screwed over it; their pressure by a spring 13 is transferred to the closure ring ii and to the pack i, o.

In the described design of a joint piece The following special effects: The hydraulic pressure or steam pressure that acts on the surface of the movable pipe part, does not press on the packing, but is taken up by the clamped base ring. The one acting on the pack Trapping pressure cannot affect the rim of the movable pipe and clamp them. Rather, this pressure is also absorbed by the base ring. In addition, there is the effect of the disc spring, which is used for highly variable Temperatures of the flow medium to always maintain the same contact pressure on the packing.

It is essential that all axial pressures only from .dem fixed Pipe part are taken up, «nourishing .the movable pipe part is completely relieved is. The innovation z. B. for supply lines and discharges of heating plates or molds of hydraulic presses. With such facilities, in which a large number of joint pieces are necessary, it is often shown that the moving tubes eat at their contact surfaces, as the packs quickly wear out because they are subject to excessive pressures, so that they leak quickly will. The temperature influences are also present in the forms of joint pieces that have been customary up to now not balanced.

Claims (3)

PATENT CLAIMS: i. Joint piece for pipelines, in particular for Inlets and outlets from heating plates or molds for hydraulic presses as well as for other heating and I, '- ühlzwecke, characterized in that between the Packing that can be tightened in the usual way by means of union nuts and the rim of the movable pipe an intermediate ring is connected, which on the one hand the Packungsdrüd < with respect to the moving pipe, on the other hand the piston pressure of the moving pipe opposite the pack. 2-. Device according to claim i, characterized in that Allow an additional spring, e.g. B. a disc spring, over the locking ring of the ... Pack is provided. 3. Application of the device according to claims i and 2, at Inlets and outlets from heating plates or molds for hydraulic presses.