EP0999389B1 - Swivelling spout with a mixing valve - Google Patents

Abstract

The outflow fitting has a base part (12) in which a pivot outlet (2) and a rotary part (8) are fitted. It incorporates a mixture valve (1) with integrated connections (9) for cold and hot water. The rotary part contains first channels for cold and hot water, which are connected via conduits (7) with the connections (9). The feed conduits (16',17') for cold and hot water are connected to second channels in the base part (12) and the first and second channels are hydraulically connected to one another by separate pivot connections. The pivot connection has two axially displaced grooves for cold and hot water, into which issue the first and second channels.

Description

There are known mixer, as a water supply for Cold and hot water from fixed to the worktop Base part to the mixer mounted at the end of the spout flexible Use hoses. Because these hoses are constantly the water line pressure exposed, they must be with a metal mesh be sheathed. With these hoses is a swivel of the spout in a limited area possible. at However, each pivoting of the spout is a torque on the Screwed connections of the hoses in the fixed base part, which causes the connections to loosen and thus leak can be. Furthermore, there is also the danger that the metal mesh is damaged by the constant twisting and the Hose can burst. In addition, the two can be relatively stiff Hoses of the swivel movement of the spout in the two end positions to oppose an undesirable resistance and the Hoses can, if they are or the inside of the spout Touch, unsightly scratching noises and also damage of the metal mesh. If a hose connection or a hose gets leaking, the leak water runs through the spout back and drips below the worktop. Because of this Leakage water often goes unnoticed for a long time, can grow larger Water damage occurs.

In DE-OS 31 20 210 is a swivel spout with a mixing valve described at the free end, part of the above Partially avoids problems. The front end of the hoses for Hot and cold water is rotatable but axially secured in holes the mixer housing inserted. The hoses have to be then while pivoting the spout along its curved axis twist. At the same time metal braids of hoses can always still rub against each other because both hoses are in the same direction have to turn. In addition, the O-ring seal the pivoting hose ends will leak over time.

US-A-3'373'770 describes a pivoting fitting with a on a Sleeve attached swivel arm. Swivel arm and sleeve are common rotatable. By sealing rings delimited channels within However, the sleeve remain fixed in position.

US-A-3'726'318 and US-A-3'410'487 disclose generic outlet fittings with a mixing valve, which is arranged in a swivel spout is, and with a rotating part, which is arranged in a base part is and is rotatable in different positions.

The present invention is based on the object, a Swivel spout to create an unimpeded pivoting allows the spout and a smooth implementation of the Hot and cold water high pressure supply to the mixing valve allows. This object is achieved by the feature combination of the claim 1 solved. Advantageous embodiments of Invention are defined in the dependent claims.

Figur 1

eine Seitenansicht eines Schwenkauslaufs mit vorn integriertem Mischventil,

Figur 2 einen

Längsschnitt durch den Drehanschluss entlang der Linie II-II in Figur 3,

Figur 3

einen Querschnitt durch den Drehanschluss entlang der Linie III-III in Figur 2,

Figuren 4 bis 6

entsprechende Darstellungen einer zweiten Ausführungsform, und

Figuren 7 und 8

einen Ausschnitt einer Variante der Ausführungsform nach Figuren 1-3.

Hereinafter, embodiments of the invention will be explained with reference to the drawings. It shows:

FIG. 1

a side view of a swivel spout with front integrated mixing valve,

Figure 2 a

Longitudinal section through the rotary connection along the line II-II in Figure 3,

FIG. 3

a cross section through the rotary connection along the line III-III in Figure 2,

FIGS. 4 to 6

corresponding representations of a second embodiment, and

FIGS. 7 and 8

a section of a variant of the embodiment of Figures 1-3.

In Figure 1 it can be seen that a mixing valve 1 at the front of a Swivel spout 2 is integrated. The mixing valve has a commercial cartridge 3 and an operating lever 4. By pulling the operating lever, the spout and through Turn the temperature set. The mixed water flows through the channel 5 to a commercial outlet nozzle 6. The feeder cold and hot water to the mixer is e.g. by two copper pipes 7 or flexible hoses, both in the mixer 1 as well as in the rotary part 8 at the connection 9, e.g. by soldering or screwing, are firmly inserted. The rotary part 8 has a cylindrical portion 10, which in a corresponding Blind hole 11 of the base part 12 is rotatably inserted is. The upper part 13 of the rotary member 8 has a diameter on, which corresponds to the inner diameter of the swivel spout 2, and it is with this e.g. firmly connected by soldering. The cylindrical Lot 10 has two axially offset, circumferential grooves 14, 15, which establish the connection between the Cold and hot water inlet 16, 17 and the two branch lines 18, 19. The seal between the two grooves 14, 15 takes place through the O-ring 20 and the seal to the outside the two O-rings 21. These three O-rings together with the brake O-ring 22 a certain braking torque, something must be greater than that needed to rotate the operating lever 4 Torque. The rotary member 8 has a continuous axial Relief bore 23 on. This has the purpose of a pumping action during assembly or pressure build-up due to leakage water in the Reason 24 of the blind bore 11 to prevent. Eventual Leakage water is passed through this hole 23 upwards and can exit via the overflow channel 25 and the bore 26. The axial locking of the rotary member 8 takes place with one or more Screws 27. As swing angle limitation is in the Sokkelteil 12, a pin 28 inserted in a circumferential groove 32nd engages the rotary member 8. Also installed in the base part 12 is a pull rod 29 with axially movable operating handle 30 and a Bowden cable 31 for actuating a (not shown) Drain valve.

In the second embodiment of Figures 4 to 6 are analog Parts provided with the same reference numerals, so that a detailed description of these parts is unnecessary. The second Embodiment differs from the first mainly by another hydraulic rotary joint.

The base part 12 is common with the worktop 43 Clamping means 44 firmly screwed. Located in the blind bore 11 yourself a ceramic disc package 45th It consists of a solid Disc 46 and a rotatable disc 47. A bottom plate 48 has below and above each a cam 49, the rotation opposite the base part 12 and opposite the fixed one Disc 46 ensures. By a cam 50 is the rotatable Disk 47 rotatably connected to the driving part 51. By a Eyebolt 52 with sliding washer 53 becomes the whole package 48, 46, 47 and 51 slightly pressed and axially fixed, such that between the fixed disc 46 and the rotatable disc 47 a Twist possible, but at the same time the sealing function of the two Slices is guaranteed. Both discs 46, 47 each have a passage for cold water and a passage 55 for hot water on. The geometry of these passages is designed this way (for example, by arcuate slots), that in each rotational position the swivel spout 2 these passages always remain completely open.

In the rotating part 8, the relief hole 23 is provided and in Swivel spout 2 the vent hole 26. This will also ensures that any leaking water leak upwards must and the leading part swivel spout 2 with base part 12 can not affect. Two sealing and brake O-rings 58 ensure the seal. They surrender, along with the frictional resistance of the two discs 46, 47, the required Torque resistance.

By loosening the screw 59, the swivel spout 2 can be included Turning part 8 are pulled upwards. In the driving part 51 is a stud bolt 64 is screwed. The fixing screw 59 is screwed transversely in this stud bolt 64 and it serves the axial fixation of the swivel spout 2. In the rotary member 8 are also two pieces of pipe 65 used tight and tight. They serve, together with the stud bolt 64, for non-rotatable connection between rotary member 8 and driving part 51. A cam 66 on Sokkelteil 12 serves as Schwenkwinkelbegrenzung. He reaches into one corresponding groove 67 of the rotary member 8 a.

The cold and hot water supply 16 ', 17' may e.g. from copper pipes or consist of flexible hoses. These are with firmly connected to the base part 12.

By special arrangement of the two passages 55 in the ceramic disc package 45 it would also be possible to centrally drill a third hole to arrange. This variant then has the swivel spout three copper tubes, as e.g. necessary for pressureless boilers is.

Due to the special design of the rotary connector is the Swing mechanism loaded by no axial force and arise no pivot angle dependent torques. Through the relief hole 23 in the rotating part 8 is achieved that between Turning part 8 and fixed base part 12 do not build up pressure can, and that when leaking an O-ring seal no leak water down to where it can do major damage could, before it is discovered. The leak water would be in rise in such a case through the relief hole 23 and through the vent hole 26 visible on the countertop 43 exit. Another advantage is that by loosening one (or two) screws 27 of the whole spout. 2 velvet mixing valve 1 can be expanded and by another Spout 2 can be replaced, e.g. another projection or another outlet height or another color or one other swing angle has.

In the embodiment of Figures 4 to 6 is characterized by the special Formation of the disk rotary connector of the pivot mechanism only burdened by a very small axial force, which is from the product of the surface of the two holes 54 in the driving part 51 and the water pressure results.

In Figures 7 and 8 is a section of a variant of Embodiment shown in Figures 1-3. In this variant are for the axial securing of the swivel spout 2 on the Base part 12 instead of the screw 27 (Figure 2) cooperating Detent elements between rotary member 8 and base part 12 is arranged. The embodiment with the screw 27 of Figure 2 has the Disadvantage that anyone, including unauthorized persons, the Release spout 2 and remove it. As the shut-off valves only at the end of the spout 2 are, the spout is always vacuum. By unauthorized or unintentional removal The spout would therefore run out of water uncontrollably. The variant of Figures 7 and 8 prevents this with larger Safety.

In the rotating part 8 is from below a U-shaped bracket 70 made of spring steel used. The fixation is done by two screws 71, which clamp the bracket in two holes 72. The screws 71 are only in the rotating part 8 and are after assembly the spout 2 is no longer visible. Two extended holes 73 allow the bracket during assembly and disassembly of the Spout necessary travel. When assembling the complete Outlet 2 with the rotating part 8 slides the horizontal leg 74 of the bracket 70 on the inclined surface 75 and then snaps then behind a shoulder 76 of a circumferential groove 77 of the Base part 2 in the drawn position. A disassembly of the Spout is now no longer possible without special tools. For double security is still a screw 78 made of plastic screwed into the rotary member 8, the horizontal Leg 74 of the bracket 70 holds in its secure position. At the same time, the screw 78 serves as a rotation lock between Spout 2 and rotary part 8. The screw 78 also has the purpose to prevent the access of dirt and soap into the rotating mechanism.

The deliberate disassembly of the spout by a specialist happens as follows: First, the screw 78 is removed. Then Through the threaded hole, the horizontal leg 74 of the bracket 70 by means of a hook-shaped tool to the outside drawn and the spout simultaneously pulled upwards. Because of the circumferential groove 77 remains in the mounted State of the outlet 2 relative to the base part 12th pivotable.

Instead of the bracket 70, other snap elements for Snapping into the circumferential groove 77 are used. The springy Snap element can also on the base part 12 and the non-resilient associated latching element 8 may be provided on the rotating part.

Claims (10)

1. Outlet armature, comprising a base part (12), in which a pivoting outlet (2) is mounted in a pivoting manner, in which a mixer valve (1) with one connection (9) each for cold and hot water is integrated, wherein a rotating part (8) fixedly connected to the pivoting outlet (2) is inserted into the base part (12) with one first channel (18, 19) each for cold and hot water, lines (7) connect the first channels (18, 19) with the connections (9) of the mixer valve (1), supply lines (16', 17') for cold and hot water can be connected to second channels (16, 17) in the base part (12), and the first and second channels (16-19) are connected hydraulically to one another via a separate pivoting connection each, characterized in that the pivoting outlet comprises a pipe (2) which rigidly connects the rotating part (8) with the mixer valve (1) and contains the lines (7).
2. Outlet armature according to Claim 1, wherein the pivoting connection comprises two axially shifted grooves (14, 15) for cold and hot water, into which the first and second channels (16-19) lead.
3. Outlet armature according to Claim 1, wherein the pivoting connection comprises a ceramic disc packet (45) with a first disc (47) that is connected in a rotationally fixed manner to the rotating part and a second disc (46) that is connected in a rotationally fixed manner to the base part (12) which packet, at every rotation position of the pivoting outlet (2), exhibits a complete passage cross-section for not only the hot water but also the cold water.
4. Outlet armature according to Claim 3, wherein the rotationally fixed connection between the first disc (47) and the rotating part (8) comprises a driver part (51) which is held in the base part (12) in a rotatable but axially unshiftable manner, and wherein an axis-parallel stay bolt (64) is screwed into the driver part (51), into which bolt a screw (59) is screwed crosswise to the pivoting axis which screw axially secures the pivoting outlet (2) and the rotating part (8) to the base part (12).
5. Outlet armature according to Claim 3 or 4, wherein the ceramic disc packet (45) has three passages which in each pivoting position of the pivoting outlet (2) exhibit complete passage, wherein preferably one passage is centrally arranged and the two other passages are formed in a bow-like manner with distance from the centre.
6. Outlet armature according to Claim 1, wherein the base part (12) and the rotating part (8) have collaborating snap elements (70, 76) which snap into place in the axial installation of the rotating part (8) onto the base part (12) and allow for the rotation of the rotating part with respect to the base part, and wherein preferably the snap-in connection can only be released with a special tool.
7. Outlet armature according to Claim 6, wherein the snapping elements (70, 76) comprise an elastic bow (70) which snaps into place behind a snap-on shoulder (76).
8. Outlet armature according to any of Claims 1 to 7, wherein the rotating part (8) is at least partially inserted into an axial sack-like bore (11) of the base part (12) and has a relief bore (23) which communicates with a ventilation bore (26) of the pivoting outlet (2).
9. Outlet armature according to any of Claims 1 to 8, wherein the pivoting of the rotating part (8) with respect to the base part (12) is limited and the rotating part (8) is held in the base part (12) so as not to shift axially.
10. Outlet armature according to any of Claims 1 to 9, wherein the pipe (2) is curved.

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