DE3211032A1 - Water inflow device for a washing-agent feed apparatus - Google Patents

Description

Water inlet device for a detergent dispensing device

The invention is based on a water inlet device designated in the preamble of claim 1.

Washing machines usually have a connection for fresh water. There are usually so many solenoid valves on this connection subordinate to how controllable water supply routes are available. So requires a detergent dispenser with three chambers the use of three individually controlled solenoid valves, the outputs of which are in the individual Chambers are directed.

The invention is based on the object of providing a solution for saving one or two solenoid valves in an inlet device for a detergent dispensing device with three or four chambers that does not require any adjustment work when exposed to detergent residues, limescale deposits or changing pressure conditions in the water pipe works reliably and without problems over a long period of time. The effort required for this must of course be less, than that for one or two further solenoid valves.

The solution according to the invention is in the characterizing part of the claim 1 specified. This solution is based on the fact that with the time staggered water inflow from the outlet openings of both Supply lines initially a blocking element from the first

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emerging water jet is removed from the path of the subsequently exiting water jet. This becomes the mouth of a Another detergent chamber hit by the jet of the second outlet opening and this further detergent chamber rinsed out. If water escapes only from this second outlet opening however, the angled cover blocks this access, so that the inlet water only enters this inlet line first assigned detergent chamber rinses out.

Further refinements of the solution according to the invention are possible through individual or combined use of the features specified in claims 2 TdIs 5.

On the basis of the exemplary embodiments shown in the drawing the invention is explained below. Show it:

L shows a detergent dispensing device with three chambers and a storage volume represented by the extended design of the second inlet line,

FIG. 2 shows a similar washing part dispensing device as in FIG. 1 with a different arrangement of the chambers and other arrangement of the storage volume and

3 shows a detergent dispensing device with k chambers and solenoid valves that can be controlled electrically with a delay.

The washing part dispensing device shown schematically in plan view in Fig. 1 contains two detergent chambers and 2 for first and second rinsing Laundry detergent. The formation of the individual detergent chambers is. insofar as it is not relevant to the invention is not described here. A third detergent compartment 3, which are used, for example, to accommodate soft

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Detergent is provided is via an arched line 5 in later explained in more detail hydraulically with the Detergent chamber 2 connected. Your mouth 6 is at the Rear wall of detergent chamber 2 in alignment with opening 9 a second feed line 10 is arranged. The first feed line 7 is directed with its opening 8 into the detergent chamber 1. File are the feed lines 7 and 10 with the Outputs of two solenoid valves IJ and 12 connected.

In the area of the two detergent chambers 1 and 2 to be rinsed out first, a two-wing angled diaphragm 13 is resiliently held in a central position. In this position, the mouths 5 and 9 of the two ZuI aufleitung on the associated wings Ik and 15 are directed. If the feed line 7 only carries water, the angle diaphragm 13 is pivoted over the wing lh into the position shown in dashed lines. The detergent chamber 1 is rinsed out. After the water supply has ended, the angled diaphragm 13 returns to its central position shown in solid lines.

If the line 10 carries water alone, the angle diaphragm is moved over the wing 15 into the position shown in dash-dotted lines printed. In doing so, it closes the mouth 6 of the arc conduit 5 and only allows the chamber 2 to be rinsed out. Also from In this position, the angled diaphragm 13 returns to the central position as soon as the water supply is switched off.

In the loop 16 of the feed line serving as a storage volume 10 remains after switching off the water supply, which must be discharged via the drainage opening 17, so that the loop is available again as storage volume. If the loop 16 is higher than the outlet opening 9 is arranged, a ventilation opening in the is sufficient Loop 16, so that the residual water through the outlet opening 9 can drain.

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Z π in rinsing out the detergent chamber 3, both solenoid valves 11 and 12 are now activated simultaneously. The inlet water 11 ieIH, via the inlet line 7 directly into the chamber 1 and meets there on the wing. \ 'i der Wi nke 11) 1 ends 13, before the water of the supply line 10, which initially passes through the storage servo I inside in the loop 16, can hit the wing 15. At this point in time, this wing 15 has already been pivoted into the position shown in broken lines and has released the direct connection between the outlet opening 9 and the mouth 6, which is easily overcome by the water jet according to the arrow IM shown in broken lines. The inlet water thus reaches the detergent chamber 3 directly via the curved line 5. After the two solenoid valves 11 and 12 have been switched off, the residual water flows out of the loop K) into the chamber 2 again.

The function of the water supply device according to FIG. 2 corresponds exactly to that in FIG. 1. However, it is made clear here that there are further possibilities for the design of the detergent dispenser and the storage volume. Insofar as the spatial conditions in a "washing machine allow, the detergent chamber 3 can be ^{arranged directly behind the detergent chamber 2 with 1} omission of the curved line 5 (FIG. 1) and hydraulically connected directly to this chamber via the opening 6 2 shows a sack-shaped widening IQ of the inlet line 10. The widening is designed so that the incoming water jet first fills the sack-like widening and is then deflected past the amount to the left towards the outlet opening 9. This also causes a Delay in the exit of the water jet from the outlet opening 9 compared to the entry into the line 10. Thus, the water jet emerging from the inflow line 7 has to swivel the angled diaphragm 13 into the position shown in dashed lines in FIG that the direct air path between de * · from 1 on opening 9 and the · mouth (> is released Iiestwassers, the extension can also be higher than the Aus I auf f ö JM'nunt! ⁽ ) be arranged,

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if it has a loading opening which can be connected to the chamber 2 via a line 20 to protect against leaking water. The outlet opening and the connected line 20 can, however, also be arranged lower than the outlet opening 9, so that the residual water can flow off via the line 20 into the chamber 2.

In the embodiment shown in Fig. 3 is it is a detergent dispenser with four chambers, which is also operated by means of two solenoid valves in the Fri s'chwasserl ei tune can be rinsed out one after the other. The functional principle of the angle aperture in cooperation with the water jets from the supply lines 7 and 10 is identical to that of the exemplary embodiments shown in FIGS. In the example of FIG. 3, the respective delay of the second incoming water jet is through corresponding electrical control of the solenoid valves 11 and 12 accomplished. This allows the storage volume in the feed line 10 are omitted.

To unwind chambers 1 and 2, solenoid valves 12 and 12 are switched on as an alternative. The jets of water emerging from the mouths 8 and 9 pivot the angled diaphragm 13 into the position that closes the opposite mouth of the downstream chamber h and 3. To rinse out the chamber 3, the solenoid valve 11 is first switched on and, after a short time delay, the solenoid valve is also switched on. The angled diaphragm 13, which has meanwhile been pivoted to the left, releases the airway between the outlet opening 9 and the mouth 6 so that the water jet from the line can pass directly to the chamber 3. To unwind the chamber h , the solenoid valve 12 and a short time thereafter the solenoid valve II are switched on accordingly. Then the angle diaphragm 13 is pivoted into the right position so that the path between the outlet oil "fnuriü 8 and the mouth 21 of the chamber k

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[ ¹ I (H is and the exiting water jet directly into the chimney ο τ * ^l i hits.

For the storage and suspension of the angled cover 13 are in
The drawings are only given sehematisehe information, which should not have a restrictive effect on the possible design. A solution should be given preference in which detergent residues, limescale deposits and changing pressure conditions have the least disruptive influences.

Claims (5)

TZP 82/203 claims 1. Water inlet device consisting of two controlled inlet lines for a Waschraxtt el.einspülvorrichtung with three or four chambers, characterized in that the outlet openings (8, <)) of both inlet lines (7, 10) each on a wing (lh, 15) one in Area of the two detergent chambers (1, 2) to be rinsed out first, facing the openings (8, 9) and resiliently held in a central position, are directed so that when water is supplied from only one of the two openings (β) the side Moved angular diaphragm (l3) the respective wing (15) out of the way of the other water inlet (9, 10) pivots that with at least one of the outlet openings (9) a concealed in the central position of the angular diaphragm (13) mouth (6) for at least one further detergent chamber (3) is in alignment and that for rinsing the further detergent chamber (3) the outlet opening (9) upstream of this chamber leads a short time after the first outlet opening (8) water. 2. Water inlet device according to claim 1, characterized in that the respective associated inlet line (10, 7) is opened with a time delay by electrically delayed switching on of a respective associated solenoid valve (12, 11) for unwinding the further detergent chambers (3, k). 3. Water inlet device in a washing part flushing device with three chambers according to claim 1, characterized in that that the third chamber (3) associated supply line (lO) contains a Speiohervolume (l6) which before the water outlet from the outlet opening (9) inlet water records. www w-v * · < "" "* ν ·" "" "*« v «ww TZP 82/203 4. Water inlet device according to claim 3, characterized in that that the storage volume (l6) by an opposite the other inlet line (7) ordering excess length the associated feed line (1O) is formed. 5. Water inlet device according to claim 3 or 4, characterized
characterized in that the storage volume (16, 19) a
Small opening (17, 20) for draining the contents when the inlet line (10) is not open.