DE699457C - Lid lock designed as bayonet lock for containers with high operating pressure - Google Patents

Description

Lid lock designed as a bayonet lock for containers with high operating pressure - for sealing the usual bayonet locks designed cover closures for autoclaves, pressure vessels and the like Gurnrniring used with a lip, which o. The prevailing o Pressure against one of the surfaces to be sealed against each other is pressed and thereby causes the seal. These on rubber or rubber-like, plant, material existing Sealing rings are only available at relatively low pressures (up to about 2o atü) applicable.

The object of the invention is to provide one designed as a bayonet lock To create lid closure for containers in which higher pressures prevail. Into consideration come in particular autoclaves; the z. B. serve to regenerate old rubber, where pressures up to i oo atü occur.

The invention solves the problem in that a pointed Metal ring is used as a sealing ring, which by the closing of the Containers taking place rotation of the lid with respect to the container ground will.

Metal sealing rings are known per se. What is new on the other hand the seal by means of a pointed metal ring in connection with the bayonet lock. When the container is closed, the rotation takes place every time of the lid against the container a grinding of the sealing ring instead of, especially when the cooperating bayonet locking surfaces are inclined in the circumferential direction are. In this way, a reliable seal is achieved even at the highest pressures.

According to one embodiment of the invention, the I-sealing ring -in- a groove of the container is inserted, which is partly covered with a resilient sealant is filled. This makes changing the Sealing ring relieved. Another advantage is that a relatively badly worn Ring after filling additional sealant in the mentioned groove continues can be used; so that the time of renewal of a worn ring - is postponed further.

In the drawing, an embodiment of the invention is shown, namely shows.

Fig. I the view of an autoclave with the partially cut Lid closure, Fig. 2 on a larger scale a section through the seal and FIG. 3 shows a representation corresponding to FIG. 2 of another embodiment the seal.

The bayonet lock ring b is attached to the autoclave a, along with its lugs c. are slightly inclined on their underside in the circumferential direction. In conclusion the detachable cover d serves for the car suit; that by the triangular shoots e and the handwheel f can be rotated in the circumferential direction. The lugs g_ of the lid d have an inclination on their upper side that corresponds to the aforementioned inclination of the lugs c is equivalent to. The pointed metal ring la serves to seal the closure, which is shown enlarged in Fig.

The cover d contains an acute-angled annular groove i, into which, when the car suit is closed, the metal ring lt, which is inserted into an annular groove k of the car suit, engages. When the car suit is closed, the cover d is pressed against the ring lz in the axial direction. During the closing, the sealing surfaces are ground in by the relative rotation: According to Fig. 3, the ring lz has a curved lower surface L. The cavity formed between the surface L and the lower surface of the groove k is filled with a plastic sealant through which the Escape of the pressure medium from the autoclave along the ring surfaces is prevented even if the ring is not particularly tight in the groove k. In this case, the ring lä does not need to be hydraulically pressed into the groove k, but can sit relatively loosely in it. If it is necessary to replace it, then there are no difficulties.

The realization of the 'inventive idea is also fundamentally so possible; that the ring body h is firmly inserted into the lid and not the groove i, but the groove k has an acute-angled shape.

Claims (2)

I'nTLNrANsrizüeHL: i. Trained as bayonet lock (bayonet lock) Lid closure for containers with high operating pressure, where between the end face of the container and that of the lid is a sealing ring, characterized by one made of metal, in particular in the case of car lawsuits, in an axial direction Direction wedge-shaped sealing ring, which is caused by the closing of the Container rotation of the lid with respect to the: container ground in will. 2. Lid closure according to claim i, characterized in that the sealing ring (h) is inserted into a groove (k) of the container, which is partly filled with a resilient sealant (Fig.3).