DK1606462T3

DK1606462T3 - Sanitary insertion unit

Info

Publication number: DK1606462T3
Application number: DK04719414.7T
Authority: DK
Inventors: Uwe Zoller
Original assignee: Neoperl Gmbh
Priority date: 2003-03-21
Filing date: 2004-03-11
Publication date: 2015-01-05
Also published as: DE502004014749C5; CN1761791A; PT1606462E; CN100485143B9; CN100485143C; EP1606462A1; DE10312854B4; ES2525419T3; PL1606462T3; EP1606462B1; AU2004221713B2; US20060144962A1; WO2004083538A1; DE10312854A1; US20080078848A1; AU2004221713A1

Description

Description [0001] The invention relates to a sanitary insert unit according to the preamble of claim 1.

[0002] Sanitary insert units in various designs are already known. Insert units of this type are generally inserted into an outlet nozzle which is releasably held on a sanitary outlet fitting. With the aid of such insert units, a homogeneous, smooth and non-spraying water jet should be formed.

[0003] However, installation problems owing to the construction size can arise with insert units of this type, which bring together an inflow-side throughflow-quantity regulator and an outflow-side jet regulator. In particular, there may be problems during subsequent installation into outlet fittings which were previously operated with an insert unit which had only a jet regulator but no throughflow-quantity regulator, since this latter insert unit is of a lower installation height than an insert unit with a throughflow-quantity regulator.

[0004] From EP 0 733 748 A1 a sanitary insert unit of the type mentioned in the introduction is already known, being intended for insertion into an outlet nozzle. The previously known insert unit has a jet regulator on the outflow side, a throughflow-quantity regulator and an inflow-side attachment screen being connected upstream of said jet regulator as seen in the throughflow direction. The attachment screen should keep the quantity regulator free of dirt particles which may be flowing in and could otherwise lead to faults and in particular to excessively low specific outputs for the throughflow-quantity regulator. The jet regulator of the throughflow-quantity regulator and the inflow-side attachment screen have mutually adapted connection means at each of their mutually facing ends for releasable connection of these components. Having the connection means formed in an identical or complementary manner ensures the possibility of attaching the attachment screen either to the throughflow-quantity regulator or directly to the jet regulator. Since the jet regulator is releasably connected to the throughflow-quantity regulator and this is in turn releasably connected to the attachment screen, and since the installation length of the previously known insert unit is essentially determined by the construction height of its individual components, the insert unit previously known from EP 0 733 748 A1 is of a correspondingly excessive installation length compared with a conventional jet regulator.

[0005] The object is, in particular, to create a sanitary insert unit of the type mentioned in the introduction in which installation problems owing to the installation height are avoided even in areas where space is limited.

[0006] This object is achieved in accordance with the invention by a sanitary insert unit according to claim 1.

[0007] Therefore the inner space below the attachment screen, which has thus far been unused in previously known insert units, is employed functionally for the throughflow-quantity regulator so that the construction height of the insert unit in accordance with the invention, having a throughflow-quantity regulator, is not increased over the construction height of a conventional insert unit without a throughflow-quantity regulator. This achieves total geometric compatibility between two such insert units so that interchangeable replacement of the insert units or optional installation of the throughflow-quantity regulator is readily possible.

[0008] Over time, the attachment screen may become clogged by dirt or limescale deposits. In order to ensure sufficient water inflow even with a partially clogged attachment screen in the central region it is advantageous if the throughflow-quantity regulator, in an outer, in particular annular peripheral region, has a run-on slope, which slopes up radially inwards and leads to a control gap or similar throughflow opening in through-passage connection with the jet regulator, and if the run-on slope and the attachment screen are spaced apart from one another.

Inflowing water can thus be channelled from the outer regions of the attachment screen over the run-on slope to the throughflow-quantity regulator and subsequently to the jet regulator. The functionality of the insert unit in accordance with the invention can therefore be ensured even with a partially blocked attachment screen.

[0009] In order to achieve a defined inflow of water to the throughflow-quantity regulator via the run-on slope and to avoid turbulence in the circumferential direction it is expedient if the run-on slope, on the upper side, has approximately radially running grooves for forming individual inflow channels. The bundled water flow into the inflow channels means that the flow rate at the throughflow-quantity regulator and subsequently at the jet regulator can also be increased so that the functionality of the insert unit is improved.

[0010] It is advantageous if the crosspieces, which are located between the grooves, terminate in the vicinity of, or at, the inside of the attachment screen and serve as bearing elements for the attachment screen. The crosspieces thus form supports for the attachment screen so that the stability of the arrangement is improved and undesired crimping of the attachment screen, e.g. by excessive pressure in the inflowing water, can be avoided.

[0011 ] In order to permit uniform inflow of water it is expedient if the crosspieces of the mn-on slope are spaced apart uniformly from one another in the circumferential direction.

[0012] A preferred embodiment of the insert unit in accordance with the invention makes provision that the throughflow-quantity regulator has a central core region which is enclosed by an annular flow-restricting body, and that a control gap is formed between the flow-restricting body and the run-on slope, it being possible for the through-passage cross section of the control gap to be altered by the flow-restricting body deforming under the pressure difference forming during throughflow operation.

[0013] An exemplified embodiment of a sanitary insert unit in accordance with the invention is described in more detail hereinunder with the aid of the drawing.

[0014] In the drawing:

Fig. 1 shows a partial cross-sectional side view of an insert unit in accordance with the invention and

Fig. 2shows a plan view of the throughflow-quantity regulator of an insert unit in accordance with the invention.

[0015] A sanitary insert unit designated as a whole by 1 has an attachment screen 2, a throughflow-quantity regulator 3 and a jet regulator 4 which are releasably connected to one another with the housing 5 thereof.

[0016] Figure 1 shows a partial cross-sectional side view of the insert unit 1. Below the essentially conical attachment screen 2 is an inner space 6 in which the throughflow-quantity regulator 3 is disposed. The throughflow-quantity regulator 3 has a central core region 7 which is surrounded by an annular flow-restricting body 8. Between the flow-restricting body 8 and a run-on slope 9, which slopes up radially inwards, in the outer peripheral region of the throughflow-quantity regulator 3, a control gap 10 is formed which is in throughflow connection with the jet regulator 4 disposed thereunder.

[0017] The central core region 7, the flow-restricting body 8 and the run-on slope 9 are dimensioned such that the cross-sectional profile of the throughflow-quantity regulator 3 is essentially adapted in form to the cross-sectional profile of the attachment screen 2, wherein the run-on slope 9 and the attachment screen 2 are spaced apart from one another. Disposing the throughflow-quantity regulator 3 within the inner space 6 formed below the attachment screen 2 means that a lower construction height than for conventional insert units is achieved for the insert unit 1 or a construction height for an insert unit with a throughflow-quantity regulator can be achieved which has thus far been possible only for insert units without throughflow-quantity regulators. Therefore the insert unit 1 in accordance with the invention can readily be integrated into areas in which jet regulators without throughflow-quantity regulators were previously used or which have only limited space.

[0018] As shown in particular by Figure 2, the run-on slope 9 has on the upper side approximately radially extending, uniformly spaced flushing grooves or similar grooves 11 for forming individual inflow channels. These inflow channels permit targeted inflow of water which - via the region of the attachment screen 2 above the run-on slope 9 - reaches the throughflow-quantity regulator 3 and as far as the control gap 10. Therefore, in the case where the attachment screen 2 in the central region is partially clogged, e.g. by dirt in the inflowing water or by limescale deposits, sufficient water flow into the control gap 10 and the downstream jet regulator 4 from the outer region can be ensured.

[0019] The crosspieces or protrusions 12 located between the grooves 11 and defining same terminate in the vicinity of the inner side of the attachment screen 2. They can therefore serve as bearing elements for the attachment screen 2 in order to improve the stability of the insert unit 1 and to prevent undesired crimping of the attachment screen 2 into the inner space 6, e.g. by reason of excessive pressure in the inflowing water or during handling as the insert unit 1 is being installed.

Claims

A sanitary insertion unit (1) for insertion into an outlet fitting having a substantially cone-shaped offset sieve (2), after which a flow rate regulator (3) and a beam regulator (4) are connected, in which the offset sieve (2) is connected removably. with the jet regulator housing, characterized in that the flow rate regulator (3) has a cross sectional profile which is substantially adapted to the cross sectional profile (2) profile in such a way that the flow rate regulator (3) is arranged in the inner space (6) below the flow stage (2). ) positioned on the beam regulator housing (5) and in such a way as to provide 100% geometric compatibility between an insertion unit with or without throughput flow regulator.

Inserting unit according to claim 1, characterized in that the flow rate regulator (3) in an outer, especially annular rim area has a slope (9) which increases radially inwardly and which leads to a control slot (10) or similar flow opening, which is connected through with the beam controller (4) and that the inclination (9) and the forward sieve (2) are spaced apart.

Inserting unit according to claim 2, characterized in that the inclination (9) on the upper side has grooves (11) extending approximately radially to form individual inflow channels.

Inserting unit according to claim 3, characterized in that the connecting pieces (12) which are located between the grooves (11) end up close to or at the inside of the set-up sieve (2) and act as supporting elements for the set-up sieve (2).

Inserting unit according to claim 4, characterized in that the connecting pieces (12) of the inclination (9) are arranged in the circumferential direction at regular intervals.

Inserting unit according to one of claims 1 to 5, characterized in that the flow rate regulator (3) has a central core region (7) surrounded by an annular throttle body (8) and that between the throttle body (8) and the slope (9) ) is formed a guide slot (10) whose throughput cross-section can be altered by the throttle body (8) which deforms during the pressure differential formed by the flow.