DE3246350A1 - Sanitary fitting - Google Patents

Abstract

A sanitary fitting is described which has at least one moving plate cam for controlling the water flow (water flows). In order to prevent severe pressure shocks occurring when the sanitary fitting is closed suddenly, a movement brake is coupled to the moving plate cam in such a manner that the closing rate is limited to a suitable value (Figure 1). <IMAGE>

Description

1291 / UO / p - S- 11.11.1982

3,

description

The invention relates to a sanitary fitting with a fitting housing comprising at least one inlet and one outlet; with a slidable, plate-like regulating wheel, which has at least one water passage opening, which is connected to the outlet of the valve; with a stationary part adjoining the control disc, which has at least one water passage opening which is connected to an inlet of the fitting, wherein by moving the regulating wheel, its opening is brought into more or less overlap with the opening of the stationary part can be, whereby the water flow is controlled from the corresponding inlet to the outlet of the valve.

Such valves, which generally have at least two control disks include (the "stationary part" is then also a control disk) can be closed very quickly. ■ This can lead to greater pressure fluctuations in the house pipe system than permitted by the standard.

The object of the present invention is to provide a sanitary ware to be designed door of the type mentioned in such a way that impermissibly high pressure surges are avoided. 25th

This object is achieved in that the movable regulating wheel is connected to a movement brake, which decelerates the movement of the regulating wheel.

According to the invention it is therefore ensured that the valve does not can be closed as quickly as you want. Rather, the motion brake used according to the invention delays the displacement the regulating wheel to a value at which an impermissibly high pressure build-up is no longer possible.

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The movement brake expediently comprises a cylinder bore, in which a piston is slidably arranged / wherein the piston is connected to the regulating disk via a piston rod is connected and wherein furthermore the interior of the cylinder bore via at least one narrow bore with the exterior communicates. Such a movement brake can work either hydraulically or pneumatically, depending on whether

the "outside space" is the ambient atmosphere or a water-bearing space.
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In connection with a sanitary fitting, it is recommended if the outside space is a water-bearing canal. In turn, the outlet channel, which is in the is generally always filled with water, so that the cylinder bore does not empty or does not empty in a short time can and must be refilled *

A particularly favorable geometric arrangement results in those sanitary fittings in which the effective surface of the regulating wheel is parallel to the fitting axis, i.e. essentially is perpendicular and can be moved parallel to the valve axis when the cylinder bore in the bottom part of the Valve housing is housed.

For those valves in which the regulating wheel can also be moved perpendicular to the valve axis and from one Frame is held, care must be taken that the second direction of movement of the regulating wheel from the movement brake is not impaired, that is, a relative displacement between the movement brake and regulating wheel in the second direction is possible. For this purpose, it is useful if a groove is provided in the frame, which has an outer, narrower section and an inner, wider section, wherein the piston rod extends through the narrower section of the groove and

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slidably seated with an enlarged head in the wider section of the groove.

To prevent the piston rod from tilting or tilting, when the regulating wheel is moved in the second direction, the piston is advantageously connected to a guide rod which is displaceable in a guide bore is, which forms a continuation of the cylinder bore.

An exemplary embodiment of the invention is explained in more detail below with reference to the drawing; show it

FIG. 1: a longitudinal section through a sanitary one-handle mixer fitting;

FIG. 2: a detail from the mixer fitting from FIG. 1.

In the drawing, an engagement mixer fitting is shown as an example of a sanitary fitting. It includes a fitting housing 1 with a swivel spout 2. In the fitting housing 1 and the swivel spout 2 is a base part 3 is used, which is sealed against the swivel spout 2 with O-rings 4, 5. In the bottom part 3 are a cold water inlet pipe 6, a hot water supply pipe (not shown) and a stud bolt 7 are attached. The latter serves for mounting the fitting on the partially shown washstand 8 or the like. From the water supply pipes 6 a channel 9 extends in each case to the upper end face of the bottom part 3. An outlet channel 10 connects the upper one Front face of the bottom part with the outlet space 11.

In the fitting housing 1, a control cartridge 12 is inserted so that its lower end face on the upper The end face of the bottom part 3 rests. The structure of the control cartridge 12 is essentially from DE-OS 27 38 461

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known to which reference is also made.

The control cartridge 12 comprises a cartridge housing 13, in which three control discs are housed. The arrangement of these control disks is such that their active surfaces run parallel to the valve axis. In this case one speaks of "standing" or "vertical" Control disks, i

The first control disk 14 is arranged in the cartridge housing 13 in such a way that it cannot be displaced and rotated. She is below Called "fixed disk". It contains two water passage openings 15, 16, which are connected via (not shown) connecting channels are in the cartridge housing 13 with the channels 9 in the bottom part 3 in connection.

A second control disk 17 rests on the fixed disk 14, which along two perpendicular directions can be moved. It is hereinafter referred to as the "regulating wheel" for short. The regulating wheel 17 contains a passage opening 26, which by movement of the regulating wheel 17 more or less overlap with the passage openings 15, 16 of the fixed disk 14 can be brought. As a result, the amount and temperature of the expiring in a known manner Mixed water set.

The regulating wheel 17 is held in a plastic frame 18. This has an upwardly pointing neck 19 which engages positively in the underside of the handle 20. The form fit is such that a "lateral" displacement of the frame 18, that is perpendicular to the valve axis, is possible.

The frame 18 also has projections 21 on opposite sides which extend through openings 22, 23 in the cartridge housing 13 extend radially outward. The pre

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Jumps 21 are supported on a curved control surface 'which is located on the inside of the grip apron 25.

On the side opposite the fixed disk 14, a third control disk, not shown, lies on the regulating disk 17 who has a pure leadership role. This third control disk also has a water passage opening which communicates with the passage opening 26 of the regulating disk 17 in all relative positions and via a channel (not shown) in the cartridge housing 13 is connected to the outlet channel 10 in the bottom part 3.

By rotating the handle 20 around the valve axis, the regulating disk 17 can - according to the curvature of the control surface 24 - moved perpendicular to the valve axis; this changes the temperature of the flowing mixed water.

By pulling or pressing the handle 20, the regulating wheel 17 can be moved parallel to the valve axis; thereby will the amount of mixed water flowing out changes. To prevent this movement from being carried out too quickly, What could lead to impermissibly high pressure surges in the house pipe system is a movement brake 27 with the regulating wheel 17 connected. This is structured as follows:

In the bottom part 3, a cylinder bore 28 is recessed, coaxial to the valve axis, in which a piston 29 can be displaced is. The cylinder bore 28 is connected to the outlet channel 10 via two narrow bores 30, 31 and is above this filled with water. A piston rod 32 penetrates an O-ring 37, which is on a step at the mouth of the The cylinder bore 28 is placed in the upper end face of the base part 3. The piston rod 32 also extends through a bore in the bottom wall of the cartridge housing 13 and is attached to the frame 18. The attachment is such that

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the frame can move freely at a right angle to the piston rod 32, but that the piston rod 22 is taken along parallel to the valve axis when the frame 18 executes a movement in this direction.
5

For this purpose, the underside of the frame 18 is provided with a groove 33 which has an outer, narrower section 3 3a and has an inner, wider section 33b (see FIG. 2). The piston rod penetrates the narrower groove section 33a and sits displaceably with a head 34 of enlarged diameter in the wider groove section 33b a.

So that the piston rod 32 and the piston connected to it, located in the cylinder bore 28, at a Displacement of the regulating wheel .17 perpendicular to the valve axis (in this case the piston rod 32 and the head 34 move in the groove 33) do not tilt, is a guide rod 3 5 provided, which from the piston rod 32 opposite side of the piston 29 into a guide bore 36 of the bottom part 3 protrudes. The guide rod 3 5 has so much play relative to the guide bore 36 that During the movement of the guide rod 35, the water located in the guide bore 36 can be displaced. If necessary, can for this purpose, an axially parallel groove is also provided in the circumference of the guide rod 35 and / or the guide bore 36 will.

The illustrated movement brake 27 is a hydraulic one Brake, the braking effect of which is essentially due to the throttling of the water in the bores 30, 31 and thus their Cross-section is determined when the piston is moved back and forth in the direction of the valve axis. To generate the desired Effect is basically sufficient a hole 30 or 31. If several holes are provided, this is

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the (in particular the first) filling of the cylinder bore 28 with water while displacing the initially located there Air relieved.

As mentioned, the braking effect of the movement brake 27 is based on the throttling of water that is released during the movement of the Piston 29 is displaced. This throttling does not need to take place in the bores 30, 31 so that the Water is pushed out of the cylinder bore 28 and sucked in again. In many cases it is more convenient to the cylinder spaces lying on both sides of the piston 2 9 via a suitable throttle, for example an axially parallel one Notch in the piston 29 or the wall of the cylinder bore 28 to connect with each other. The water is then on the move of the piston 29 is pressed back and forth between the two cylinder chambers via the throttle.

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Claims (9)

1291 / UO / p ~> ^ - 11 - * 11 .1982 Claims Sanitary fitting with a fitting housing comprising at least one inlet and one outlet; with at least one displaceable, plate-like regulating disk, which has at least one water passage opening that connects to the outlet the valve is in communication; with a stationary part adjoining the regulating wheel, which is at least has a water passage opening which is in communication with an inlet of the fitting, whereby through Movement of the regulating wheel whose passage opening more or less overlaps with the passage opening of the stationary part can be brought, whereby the water flow from the corresponding inlet to the outlet of the Valve is controlled, characterized in that the movable regulating disc (17) with a movement brake (27) is in connection. Which delays the movement of the regulating wheel (17). 2. Sanitary fitting according to claim 1, characterized in that the movement brake (27) has a cylinder bore (28) comprises, in which a piston (29) is arranged displaceably that the piston (29) via a piston rod (32) is connected to the regulating disk (17) and that the interior of the cylinder bore (28) over at least a narrow Bore (30, 31) communicates with the outside space. 3. Sanitary fitting according to claim 2, characterized in that · the outer space is a water-carrying channel (10). 4. Sanitary fitting according to claim 3, characterized in that that the channel (10) is the outlet channel. 5. Sanitary fitting according to one of claims 1 to 4, in which the effective surface of the regulating wheel parallel to the arm 1291 / UQ / p - 2 - November 11, 1982 door axis, i.e., runs essentially perpendicularly and is displaceable parallel to the valve axis, thereby characterized in that the cylinder bore (28) is accommodated in the bottom part · (3) of the fitting housing (1). 5 6. Sanitary fitting according to claim 5, in which the regulating disk can also be moved perpendicular to the fitting axis and is held by a frame, characterized in that a groove (33) is provided in the frame (18) which has an outer narrower section (33a) and an inner wider section (33b) that the piston rod (32) extends through the narrower section (33a) of the groove (33) and with an enlarged Head (34) in the wider section (3 3b) of the groove (33) slidably seated. 7. Sanitary fitting according to one of claims 2 to 6, characterized in that a guide rod (35) with the piston (29) is connected, which is displaceable in a guide bore (36) which is a continuation of the cylinder bore (28) forms. 8. Sanitary fitting according to claim 2, characterized in that the cylinder spaces lying on both sides of the piston (29) are connected to one another via a throttle. 9. Sanitary fitting according to claim 8, characterized in that the throttle has an axially parallel notch in the piston (29) and / or in the wall of the cylinder bore (28).