DE3246976A1 - Sealing plug-in pipe-connection system - Google Patents

Abstract

The invention relates to a sealing plug-in pipe-connection system for liquid or gaseous media. It has the object of providing a firm and sealed pipe connection which can be plugged in and secured and cuts down on the mounting time, energy and auxiliary means. According to the invention, this is achieved in that the retaining and securing spring, which is fastened on the pipe by means of the ring, latched in the groove provided, and relieved, overlapping washer, connects said pipe to the joining part by its specially shaped spring ends latching in a captive manner into the depressions provided in the joining part. In each case, this ensures that the plug-in depth of the pipe end engages over the seal located in the joining part. If required, the latched-in spring ends can be arrested on the joining part by means of an additional securing means. The drawing shows an additionally arrested pipe connection. The advantages to be achieved consist in the rapid, firm and sealed pipe connection which can be secured and is capable of additionally relieving the fitter of any worries regarding risks relating to sealing or torsional freedom. <IMAGE>

Description

Sealing pipe connection plug-in system

The invention relates to a sealing pipe connection plug-in system for liquid or gaseous media, the easily detachable pipe connections is able to produce, hold, seal and secure.

Plug connections are used for the installation or assembly of pipelines required, on the one hand, without additional tools, assembly time, cost and able to securely hold detachable pipe connections in an energy-saving manner, on the other hand can also be easily produced on site, as well as being sealed and assembled during assembly hold that the previously passed on to the fitter risk of tightness or the torsion-free installation is significantly reduced.

The connection of pipes for liquid or gaseous media takes place using different fasteners; they can be unsolvable or be made detachable.

Pipes are permanently connected to each other by using sleeves, branches, Elbows etc. are soldered or welded to one another in a known manner on the pipe end will.

Detachable pipe connections are known to be quiet by means of flanges, kittings, cutting rings, sealing rings or sealing cones as screw connections, as Plug-in connections by means of quick-release couplings are available. This is it each about standard parts.

Other known pipe connections meet the safety requirements not for lines with liquid or gaseous media.

Non-detachable pipe connections require soldering or welding equipment for production, Energy and time, as well as hard or soft solder or welding wire.

The fitter comes in the mostly tightly dimensioned installation ducts often only with difficulty to the soldering or welding points that have to be carried out all around. In the area a heat shield must be attached to flammable materials.

Flange screw connections require pipe ends with a welded flange.

Screw connections by means of fittings open the thread cutting the end of the pipe and sealing it with sealing tape or similar is required.

Screw connections by means of cutting ring, sealing ring or sealing cone leave to the qualification and the discretion of the fitter how much he attracts them and thus individual influences on tightness and durability. Often there is not enough turning path for the wrench.

Plug connections in the known form of Schnellkpplunen are made For reasons of cost, only used where connections are often quickly and securely resolved and need to be reconnected.

All non-detachable connections and the screw connections make high demands to the fitter, because he knows the exact execution of the soldering point, weld seam or screw connection, as well as their tightness are left up to.

In addition to the qualification of the assembly staff, they also require aids and energy. In addition, a high amount of assembly and testing time is necessary, The latter is also used for the manufacture of series products with cable connections is applicable.

The object of the invention is to provide a pluggable, solid, tight and to to create a secure pipe connection that saves assembly time, energy and resources is able to replace the known pipe connections. According to the invention this is achieved in that pipe ends with a groove, the distance to the pipe end in each all an overlapping insertion depth of the pipe over the seal of the connection part ensures in a simple and quick way with a connector that is in the Connection hole equipped with seal and specially shaped indentations on the outside is, is connected by the with back-turned, overlapping disc and springy Ring on the end of the tube attached fuse and ilaltefeder with their spring ends engages immovably in the recesses of the connection part and by means of sliding or Spring ring locks this in place in such a way that the spring ends are prevented from bending out without authorization will.

If necessary, the groove required on the pipe is made on site with the Grooving tool belonging to the system is produced.

The advantages achieved with the invention consist in the fast, firm, tight and secure connection of pipes that cost assembly and testing time and energy-saving the fitter against tightness, torsion freedom etc. risk are able to relieve.

A socket connection as an embodiment of the invention (Fig.1) as well as the grooving tool belonging to the system (Fig. 2) are shown in the drawing and are described in more detail: According to the invention, the tube (1) in such a distance from the pipe end a groove (2) that in each case an overlapping Insertion depth of the tube (1) ensured via the seal (11) of the connecting part (8) is. If necessary, the groove wrench (14) belonging to the system can be used (2) applied on site. This is done by depending on the wall thickness of the pipe (i) the The cutting steel (15) or the Nutenpreßring fixed to the depth of the groove (2) (19) in the foldable holder with handle (16) and limitation (17) when turning the The groove (2) in the pipe (1) cuts or rolls. The existing stop (20) provides the correct distance between the groove (2) and the end of the pipe.

Hardened, calibrated bolts (18) are available.

The ring (7) corresponds in shape and inside diameter to the groove (2) and is made of resilient material (round wire snap ring, nylon ring or similar).

The disc (5) has an undercut (6) whose diameter tolerance compared to the ring (7) is less than the depth of the groove (2) and by overlapping it is prevented from being pulled out of the groove (2).

The retaining and locking spring (3) connects and secures the tube (1) and connecting part (8), in that they are held on the pipe side by ring (7) and disc (5) is or is connected to the latter and so shaped on the connecting part side Has spring ends (4) which are able to move immovably into existing depressions (12) of the connecting part (8) into place.

The connection part (8) - in a known manner as a connecting sleeve, branch, Elbows, angles, fittings, blind plugs, reducers, etc. - have in the connection hole (9) a sealing groove (10). The execution of the same corresponds to the one used Seal (11) (O-ring, lip ring, or similar). The connection part (8) has depressions on the outside (12) which ensure that the leather ends (4) are permanently locked into place.

The washer (5) and ring (7) provided with retaining and locking spring (3) The pipe to be connected (1) is inserted into the bore (9) of the connection part (8) to the extent that that it extends beyond the seal (11). The E'cderenden (4) of the retaining and safety spring (3) are pushed over the connection part (8) until they are in the recesses (12) lock firmly into place.

If necessary, the latched spring ends (4) are provided with additional Fuse (13) (spring ring, sliding ring, safety wire or similar) on the connector (8) to prevent unauthorized bending of the spring ends (4) and thus the Loosening of the connection is prevented.

Claims (7)

Sealing pipe connection plug-in system Patent claims: Sealing Hohrverbinclungs plug-in system for liquid or gaseous media, characterized in that that a groove (2) locked in place on your pipe (1) to be connected and by means of a back-turned, overlapping disc (5) secured king (7) the retaining and retaining spring (3) on the tube (1) holds it with the one in the connection hole (9) with seal (oil) and on the outside with recesses (12) equipped connection part (8) connects in that the spring ends (4) immovable in the recesses (12) snap into place. 2. Sealing pipe connection plug system according to claim 1, characterized characterized in that the recesses (12) of the connecting part (8) are shaped in such a way that they for immovable engagement of the spring ends (2b) of the retaining and locking spring (3) serve. 3. Sealing pipe connection plug-in system according to claim 1 and 2, characterized in that the yeder ends (4) of the retaining and securing spring (3) are shaped in such a way that they cannot be moved into the recesses (12) during assembly of the connection part (8) into place. 4. Sealing pipe connection plug-in system according to claim 1 or the following, characterized in that an additional fuse (13) in the Recesses (12) of the connecting part (8) latched heder ends (4) of the holding and locking spring (3) locked in such a way that unauthorized bending of the spring ends (4) is prevented. 5. Sealing pipe connection plug-in system according to claim 1 or the following, characterized in that the items of the connector both made of both metal and plastic. 6. Sealing pipe connection plug-in system according to claim 1, characterized characterized in that the grooving machine belonging to the system (14) is the one to be connected Ear (1) the required groove (2) by turning into the tube (1) cuts or presses. 7. Sealing pipe connection plug-in system according to claim 1 or 6, characterized in that the grooving tool (14) has a limitation (17) which the depth of the groove (2) to be cut or pressed is limited.