DE8603895U1 - Washing machine with a device to prevent water damage - Google Patents

Description

BAUKNECHT HAUSGERÄTE GMBH PHD 86-023

Washing machine with a device to prevent water damage

The innovation relates to a washing machine with a device to prevent water damage from leakage between the faucet and the detergent dispenser drawer using an inlet hose that is at a distance / on a casing hose is un ^ jeben, as well as one of the inlet hose upstream controllable valve.

To avoid water damage in the event of leaks between the water supply network and the washing machine, it is known, the usually electromagnetically controllable valve required per se for filling a washing machine to be arranged directly on the tap. With this design, the inlet hose is between the water network and The machine is only pressurized during the time of a water inlet, and here only at a relatively low level Pressure, because the water in a bowl or the like. is guided over a free air gap, so the water inlet is open to the washing machine.

It is also known, in addition to the water-bearing The inlet hose should be laid with a sleeve hose at a distance through which even small leaks can be captured and harmless can be made. It is known for this enveloping hose to close it with the inlet hose at the front and rear Connect so that a pressure builds up in the case of a leak in the envelope tube. This print can be used to to close a pressure-dependent valve on the tap.

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86-023

Finally, it is known to only use the jacket tube on the Side of the supply network to be tightly connected to the valve or the inlet hose and the machine-side end to drain freely e.g. in a water basin underneath the machine. Associated with one of this tub Float, the inlet valve can then be closed.

The innovation is based on the task of a washing machine and the associated devices to avoid i of water damage in such a way that the total expenditure | is kept as low as possible with high security. I.

According to the innovation, this is achieved in a washing machine of the type described at the outset in that the casing tube is fluid-tightly connected to an inlet opening of the detergent dispenser drawer and the machine a monitor that responds to the overflow level is assigned, through which the

controllable valve can be closed. I.

The controllable valve can be a solenoid valve in a known manner its energy circuit for opening the valve via switching contacts of an overflow level monitor is looped in such a way that the energy circuit is interrupted when a predetermined level is exceeded and thus the Valve is closed.

In addition or instead of the electromagnet described l valve can on tap, a pressure-dependent control?

Be arranged bares valve, which, provided with a membrane, automatically S at a certain pressure increase closes. For recording the critical overflow level can the controllable valve or the associated Druckmeß-; connect the can to the suds container via a sensor hose

be bound. *

3 PHD 86-023

An exemplary embodiment of the innovation will be described with the aid of a schematic drawing.

From a water supply network, the solenoid valve 2 and the water inlet hose 3 are supplied to a detergent dispenser drawer 4 via the free air gap 5 _{via the water tap 1 #.} In the detergent dispenser 4 siriu the fiiic a grip plate 6 provided container 7 for detergents and care products is inserted. The dispenser is connected to the tub via a corrugated hose 8. The drainage tub 9 is emptied via a drain pump 10 and a waste water hose 11. A level monitor 13 is coupled to the tub 9 via a sensing hose 12, via the contacts of which the

1.3 coil 14 of the solenoid valve 2 is controlled.

If the inlet hose 3 bursts or if the valve 2 or the Inlet hose 3 finds a small leak, then it works

Water through the envelope egg surrounding the inlet hose 3

hose 15 in the detergent dispenser 4 and from this then into the tub 9. If a predetermined Level exceeded, then the pressure in the diaphragm box of the level switch 13 rises and interrupts the Power supply for the solenoid coil 14. The valve 2 is

closed. Of course, the circuit for *

the solenoid 14 is also controlled by the program control device and selected water levels.

In addition to or instead of the solenoid valve 2, a pressure-dependent controllable valve can be used that is controlled by a correspondingly guided sensing tube 12. If there is only one pressure-dependent on tap 1 Valve, then a controllable valve must also be arranged on the machine side, which the air |

line 5 is connected upstream.

Claims (4)

.:. : * - '·: ·· 4 ..' '··' phd 86-023 PROTECTION CLAIMS 1.Washing machine with a device to prevent water damage from leakage between the faucet and the washing machine Medium-dispenser drawer using an inlet hose, which is surrounded by a casing hose at a distance ; 5, as well as one upstream of the inlet hose controllable valve, characterized in that the casing hose is connected in a liquid-tight manner to an inlet opening of the detergent dispenser drawer and a monitor which responds to the overflow level and through which the controllable valve can be closed is used. 2. Washing machine according to claim 1, characterized in that the controllable valve is, in a manner known per se, an electromagnetic valve, the energy circuit of which is looped through switching contacts of an overflow level monitor. 3. Washing machine according to claim 1, characterized in that the controllable valve is equipped with a membrane which detects an excessive level of fluid in the machine via a sensor hose lying parallel to the inlet hose and closes the valve. 25th 4. Washing machine according to claim 3, characterized in that the inlet hose is also preceded by a solenoid valve controlled by the program control device and level monitor.
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