DE3405229A1 - Connecting piece for hose lines - Google Patents

Abstract

The invention relates to a connecting piece for hose lines, in the form of a screw connecting piece having an internal thread, the intention having been to achieve a connecting piece which can be used in a versatile manner instead of a plurality of connecting pieces each having different connecting threads and hose connecting pieces. For this purpose, the connecting piece has at least one internal step in the threaded connecting part having two different thread diameters, preferably with a respective undercut at the step end for insertion of a sealing ring for sealed screw connection, the hose connecting part preferably also being able to have at least one external step with two different diameters of the connecting pieces, with an external tooth or groove system preferably being provided for pushing the hose on, with a corresponding unobstructed hose width. <IMAGE>

Description

Description:

The invention relates to a connector for hose lines in the form of screw connections with internal thread.

Especially on construction sites but also in other areas are used for the Connection of hose lines to water taps, steam jet devices or the like. Different Fittings required. So especially external threads R 1/2 "and R 3/4" are common, for which connectors with R 1/2 "or R 3/4" internal thread with corresponding Hoses are necessary, and there are also connectors with screw connections with R 1/2 "and R 3/411 and coupling for the hose connection.

Thus, in the construction industry but also in the house and agriculture a corresponding number of connectors be available, such easily get lost and then the matching pieces are missing.

The object of the invention is now instead of several connecting pieces more versatile with different connection threads and hose connectors to create insertable connector.

To solve this problem, the connector for Hose lines in the form of screw connections with an internal thread according to the invention by at least one inner gradation in the thread fitting 1 u ßteil with two different thread diameters, preferably with a respective undercut at the end of the step for the insertion of a sealing ring for the tight screw connection, whereby the hose connection part preferably also at least one external gradation with between different diameters of the connecting pieces with preferably provided External teeth or grooves to slide the hose on with the corresponding clear hose width having.

In particular, the 1 nnena b graduation in the threaded connection part can also be produced by a threaded ring with a reduced internal diameter the hose connector 1 rotatably arranged in the threaded connector and finally the hose connector can be coupled to the threaded connector.

Further details of the connector according to the invention are then given and illustrated with reference to the drawing in three preferred exemplary embodiments described below and specifically show: FIG. 1 the sectional view of a first Execution of a one-piece connection piece, FIG. 2 the sectional view of a second version of a multi-part, rotatable connector and figure 3 shows the sectional view of a third embodiment of a couplable connection piece.

In the first embodiment of Figure 1 is a one-piece connector provided, which in the thread connecting part 1 an inner gradation 2 for two different Thread diameter 3 and 4 Ijesitz and undercuts at the end of the thread gradations for receiving sealing rings 5 ;.

The hose connection part 6 is also with two different ones Outside diameters 7 and 8 for the optional push-on of different hoses clear width. Here, either, as shown on the left, external teeth 9a or, as shown on the right, an outer groove 9b for a tight hose connection, in the latter case, be provided with a conventional clamping ring at the end of the hose. Furthermore the connecting piece can have a conventional external hexagon 10 or in the case of a ring configuration be corrugated here.

In the second embodiment according to FIG. 2, a multi-part, rotatable connector shown, which in the threaded connector 11 a rear Recess 12 for receiving a female thread 14 opposite the inlet thread 13 has a smaller thread. There are sealing rings on both sides of the threaded ring 14 15 is inserted and the threaded ring can be adjusted in height by means of a locking screw 15a held.

The hose connection part 16 follows here by means of end flanges 16d as well a support ring 17 and a safety ring 17a, which is in an annular groove for holding deflected The hose connection part 16 here has two different outer diameters 18 or 18a for the optional insertion of hoses of different clear widths each with external teeth 19a and external grooves 19b corresponding to the first Embodiment.

The connection piece can also be used here as an external hexagon 20 or as a corrugated nut be trained.

The last embodiment according to FIG. 3 shows a couplable one here Connection piece, with an inner step 22 in the threaded connection part 21 for two different thread diameters 23 and 24 with undercuts for Receipt of sealing rings 25 is provided.

The couplable hose connector 26 is also here with two different outside diameters 27 and 28 for optional pushing on of hoses different clear widths, namely a common external toothing 29 here intended for clear hose connection. The coupling between the threaded connector 21 and hose connection part 26 takes place empty in a known manner by means of a bayonet lock gripping screw jaws 30,31 with the interposition of annular sealing beads or annular beads 32,33 and clamping jaws 34 as is known per se.

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Claims (10)

Connection piece for hose lines Patent claims: 1. Connection piece for hose lines in the form of screw connections with internal thread, g e k e n n z There is at least one internal step in the threaded connection part two different thread penetrators with preferably the respective undercut at the end of the step for inserting a sealing ring for a tight screw connection. 2. Connection piece according to claim 1, g e k e n n z e i c h n e t d u r ch at least one external step on the hose connection part with two different ones Diameters of the connecting pieces with preferably provided external teeth or - Groove for pushing the hose with a correspondingly clear hose width. 3. Connection piece according to claim 1 or 2, d a d u r c h g e k e n n shows that the internal gradation in the threaded connector is replaced by an im Inner diameter reduced threaded ring is generated. 4. Connection piece according to one of claims 1 to 3, (1 tr <1 ur c h g e k e n n z e 1 c h n e t that the hose connection part can be rotated in the threaded connection part is arranged. 5. Aischlußstück according to claim 3 and 4, d a d u r c h g e k e n n z e i c h n e t that in a recess from the rear to the threaded section Threaded connection part of the threaded ring and then the hose connection part with Flange end is incorporated. 6. Connection piece according to claim 5, d a d u r c h g e -k e n n z e 1 C h n e t that sealing rings are inserted on both sides of the threaded ring. 7. Connector according to claim 6, d a d u r c h 9 e -k e n n z e i c h n e t that the last sealing ring is the flange end of the hose connector follows with a support ring and subsequent locking ring. H. Connection piece according to one of claims 1 to 3, d d u r c h g It is not noted that the hose connection part with the threaded connection part dome bar is. 9. Connector according to claim 8, d a d u r c h g e -k e n n z e i c h n e t that the coupling is designed as a bayonet lock. 10. Connection piece according to claim 8 or 9, d a d u r c h g e k e n n z e i c h n e t that the threaded connection part in the coupling part has an annular shape Receives sealing bead, which is a corresponding annular bead from the coupling Hose connector attaches to the seal.