FR2589552A2 - FLOOD SAFETY DEVICE FOR HOUSEHOLD APPLIANCES OF WATER USERS - Google Patents

Abstract

SAFETY DEVICE, FOR HOUSEHOLD APPLIANCES USING WATER, INCLUDING AN INLET VALVE 1 CONNECTED TO THE SHUT-OFF VALVE OF THE WATER DISTRIBUTION NETWORK AND CONNECTED TO THE HOUSEHOLD APPLIANCE BY A MULTIPLE HOSE 19 CONTAINING SUPPLY PIPES 6, DRAIN 8 AND LEAK WATER 10 AS WELL AS A CONTROL LINE 20 IN ACCORDANCE WITH THE PATENT APPLICATION N8510584. A SUPPLY CHANNEL 11 CONDUCTS, IN THE BODY 2 OF THE INLET VALVE 1, FROM THE FRESH WATER INLET TUBING 3 TO THE OUTLET TUBING 5 SERVING FOR THE CONNECTION OF THE SUPPLY PIPE 6, A VALVE D '' STOP 14 CONTROLLED ACCORDING TO THE PRESSURE AND A FILLING SOLENOID VALVE 15 ARE PROVIDED IN THIS INLET CHANNEL WHILE THE WASTE WATER INLET TUBING 7 AND A CONTROL LINE JUNCTION 17 HAS A MANOMETRIC CAPSULE 16 ALSO INTEGRATED IN THE ENLARGED CONNECTION TUBING 9. THE INVENTION APPLIES IN PARTICULAR TO DISHWASHER AND WASHING MACHINES.

Description

FLOOD SAFETY DEVICE, FOR APPLIANCES

HOUSEHOLD WATER USERS

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  The main patent application No. 85 10584 relates in its claim 4 a flood safety device, for home appliances water users, including dishwasher and washing machine machines, which comprises a connected supply pipe, by a Inlet valve controlled by the machine, at a tap

  shutdown of a water distribution network, the shut-off valve

  a fresh water intake manifold connected to the stopcock, having: an outlet nozzle for the

  supply pipe; an enlarged tubing, for connecting

  a leakage water pipe disposed around said outlet pipe; a water intake manifold: used for an exhaust pipe; a second outlet pipe for an extension of the discharge pipe to the water network

waste settled permanently.

  We know by the German patent DE PS 31 14 664

  a safety device for household appliances used

  water heater, which is connected in series with the water supply valve of the appliance, a shut-off valve

  subject to the influence of a permanent magnet placed outside

  of the valve body and actuated by a float. On the body of this double valve of the machine is reported, detecting the level of the liquid in the washing tank, a manometric capsule whose membrane carries on one of its faces a permanent magnet and is coupled on the other side at least indirectly with a float in the sense that the latter deflects the membrane. The supply of water to the tank of the household appliance is obtained by opening the inlet solenoid valve specific to the machine and switched on by the control unit. A level controller closes the incoming solenoid valve when the service level is reached in the tank. In the event of a failure of the level controller or of non-closing of the incoming solenoid valve, the liquid reaches the tank in the so-called safety level, to which the membrane

  the pressure of the liquid, the manometer capsule

  in the body of the valve, a permanent magnet

  above the armature to such an extent that the stop valve actuated by the permanent magnet terminates the water supply to the machine. In this device, the supply pipe is constantly subjected to the pressure of the water distribution network when the stopcock is open. German patent DE-PS 30 14 427 also discloses a safety device comprising a

  leakage water hose which, in the event of a rupture of the

  tion, brings the leakage water coming out of the latter pipe to a collection tray which is placed at the bottom of the domestic appliance and in which a switching device causes

  an immediate closing of the arrival of the liquid. This provision

  switching device can be constituted by a float-controlled switch causing, in the event of leakage water, the closing of the inlet valve and / or the switching on of a drain pump of the apparatus connected by an evacuation pipe to the wastewater network of the room. If the inlet valve connected to a shut-off valve of the water distribution network is constituted by a solenoid valve operable by the control device of the machine, the magnetic coil of the inlet valve is connected by a power line. to the control device, for example to the programmer, and / or to a switching device in the leak-collecting tray of the machine. Through its intake manifold, the inlet valve is threadedly connected to the outlet of the permanently fixed shut-off valve, while at its outlet pipe is fixed the supply pipe, which leads through a gas valve. safety of the machine to the washing tub of the latter. From the inlet valve, the leakage water pipe, which is fixed to its body by a collar, collects the supply pipe and

  opens freely into the collecting tray.

  According to the main patent application, the connection

  The fluid-consuming appliance is facilitated and simplified by the fact that the supply pipe, the leakage water pipe and the drain pipe are assembled into a multiple pipe into which the line can also be inserted. of control between the machine and the inlet valve controlled by it on the shut-off valve of the

  water distribution network. For this purpose, the gate valve

  connected to the shut-off valve by an intake manifold

  present: an outlet pipe for the supply pipe

  tation; an enlarged manifold for the leakage water pipe disposed around said outlet manifold; a second intake manifold for the discharge pipe; a second outlet pipe for an extension of the pipe

  evacuation to the permanently established wastewater system.

  At the same time, the second inlet pipe, for discharge pipe, of the inlet valve and the second outlet pipe, for the extension of the evacuation pipe to the permanently established wastewater network, this same inlet valve can be connected to one another by a channel

  of the body of said inlet valve.

  The present invention aims to improve

  the security device according to the main patent application

  to avoid a separate arrangement of the machine-controlled inlet valve on the shut-off valve or of a mechanically-controlled, permanent-magnet safety valve in a collecting pan at the bottom of the machine and that we can dispense with providing a

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  solenoid valve arrival in the home appliance.

  This problem is solved according to the invention by the fact that in the body of the inlet valve, a supply duct leads from the intake manifold of fresh water connectable by screwing to the shut-off valve by a nut.

  connection to the first outlet pipe used to connect

  of the supply pipe, that a shut-off valve controlled according to the pressure by mechanical effect and by permanent magnet jet, ie. upstream or downstream, in the flow direction, a filling solenoid valve are arranged in said supply channel, that, in addition to the first supply pipe outlet pipe, the spent water intake pipe for the discharge pipe and a control line joint to a pressure cap of the shut-off valve are also integrated into the enlarged connection pipe for the leakage water pipe and that said control pipe joint

  is connected to a pressure chamber or the like

  level regulator of the home appliance by a

flexible pipe.

  According to other advantageous advantageous features of the invention: the intake manifold of fresh water and

  the first outlet pipe, or the connection pipe-

  widened with water intake manifold. worn and

  control line junction, are arranged, in line with

  or in parallel offset planes on two opposite sides of the inlet valve body, the shutoff valve and the fill valve being correspondingly aligned in said valve body; in the region of the enlarged connection pipe, the discharge pipe or extension thereof is taken out of the leakage water pipe and circulates next to the body of the inlet valve; a clamp or the like is permanently or removably attached to the body of the inlet valve to guide the outlet pipe or the extension thereof; the device comprises, in the body of the inlet valve, an elbow connecting the waste water intake pipe for the discharge pipe to the second outlet pipe for the extension of said discharge pipe; a power line connecting the machine control unit to the fill solenoid valve is fed to the inlet valve body through the enlarged connection manifold; the inlet valve body has a false receptacle or the like as a support for the shipping of the mains cable

the home appliance.

  The device according to the invention is distinguished by a particularly simple structure and favorable to mounting and at the same time meets the safety requirements against leakage water damage in case of bursting of the supply pipe and / or pipe discharge. Whereas, by the combination of valves formed by the mechanical shut-off valve and the machine-controlled filling solenoid valve, a combination placed on the fixed shut-off valve, the rise in the level of the wash tank is ordered, in

  connection with the shut-off valve, by the solenoid valve

  If it is controlled by the programmer of the appliance itself, it is not necessary to provide, on the machine side, a controllable fresh water intake valve. When, the tank being empty, the level regulating device is free of any load, and consequently the manometric capsule of the mechanical stop valve placed on the shut-off valve is also not under pressure, said valve of stop is opened by its permanent magnet. If the appliance is turned on, the filling solenoid valve also placed directly on the shut-off valve is turned on, and open, either for a predetermined time, or until the switch responds. level in the water draw intervals provided for in the program. If the filling level of the tank reaches the safety level, the shut-off valve is closed, and the water supply to the appliance is interrupted by the level regulator and the manometric capsule. If the programming separates the filling solenoid valve from the mains, this valve also takes its closed position. As the supply pipe is not pressurized in the closed position of the filling valve as the shut-off valve, its bursting is almost impossible, even if the machine leaves the shut-off valve open. The filling solenoid valve is

  in series with the mechanical shut-off valve

  is lying. The safety device is connected in a simple manner because, on the one hand, the leakage water pipe surrounds the supply pipe and the drain pipe and the connections of said pipes are made on the common body of the stop valve and the filling valve and that, on the other hand, the inlet valve is fixable on the valve

  with a union nut by means of its intake pipe.

fresh water.

  If, according to an advantageous arrangement, the domestic appliance is provided with a trays for trailing water placed on the bottom side, a float or other similar device placed

  interior of said container as well as a device for

  it can be connected to the electric control line of the magnetic coil of the filling valve, this allows complete monitoring of the supply and exhaust pipes as well as the domestic appliance. For this purpose, the leakage water pipe surrounding said supply and discharge pipes is firmly and sealingly connected to the body of the inlet valve at one end, while at its other end it opens freely into the collecting tray. If, during a filling program step the feed pipe, or during

  a pump emptying program the evacuation pipe

  tion, loses its seal, the outgoing leakage water is

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  collected by the leakage water hose and brought to the ferry

  collector, where the switching device also triggers

  early closing of the filling valve on the shut-off valve or, if necessary, switching on of the drain pump. A leak in the machine or the failure of the shut-off valve monitoring the filling level of the washing tub can not lead to flooding of the room. Another security results. already because the filling solenoid valve

  is closed in the absence of local power.

  In a simplified embodiment of the domestic appliance, without a collector tank or a float-operated switching device, the leakage water pipe can open on the machine side in the level regulator device or in the washing tank of the domestic appliance. The water of escape

  supplied by the leakage water hose to the monitoring device

  liquid level lance in the wash tank can act, via the level regulator device, on the pressure cap of the mechanical stop valve on the shut-off valve so that said shut-off valve

  closes when the fill level is reached.

  A corresponding switching process would be triggered at the latest when the normal or safety level is reached if the wash tank itself were to be filled.

by leaking water.

  The invention will be better understood using the

  detailed description of two embodiments taken as

  non-limiting examples and diagrammatically illustrated by the accompanying drawing, in which: Figure 1 shows in longitudinal section a first embodiment of the inlet valve, to be connected to the stopcock, the safety device according to the invention;

  as well as connections of this same device to the

  household appliance, not shown; 2 shows in partial longitudinal section a modified embodiment of the inlet valve in which the discharge pipe or its extension are laterally out of the body of said valve and posables in extension of the multiple pipe; Figure 3 is a cross-sectional view of the multiple pipe connected to the inlet valve according to Figure 1; FIG. 4 is a cross-sectional view of the multiple pipe connected to the inlet valve according to FIG.

figure 2.

  The inlet valve 1 to be connected to a shut-off valve of the permanently installed water distribution network comprises a body 2 with a fresh water inlet pipe 3 and a union nut 4. On the wall of the body 2 opposed to the intake manifold 3 is a first outlet pipe S on which

  a supply pipe 6 is fixable, an intake pipe

  wastewater 7 on which an evacuation pipe

  8 and finally, around the first outlet pipe S and the waste water intake pipe 7, a pipe

  extended connection connection 9 for a leakage water pipe 10.

  In a feed channel 11 leaving the intake manifold of fresh water 3 and heading into the body 2

  to the first outlet pipe 5 for the supply pipe

  6, a mechanically actuated shut-off valve 14 and a fill solenoid valve 15 are arranged downstream of a coarse screen 12 and a valve screen 13 so that the shut-off valve 14 rests on the inlet, and the fill valve 15 on the outlet, of the valve. In this arrangement, in the event of leakage of the filling valve, the function of the shut-off valve is fully ensured, the latter being closed with servocontrol

  by the pressure of the water pipe. We obtain a structure

  favorable condition of the inlet valve 1 by an aligned arrangement, or shifted in parallel planes, of the intake manifold 3 with respect to the connection pipe 9,

or valves 14 and 15.

  The mechanically actuated stop valve 14 has a pressure capsule 16 which is airtightly connected by a control line junction 17 and a hose 18 to a pressure chamber of a level regulator set to a determined filling level of the appliance tank. At the same time, the pipe 18 is preferably enclosed in the multiple pipe 19, with the supply pipe 6 and the discharge pipe 8, surrounded by the leakage water pipe 10. In the rest position, the For example, the stop valve 14 is kept open by a permanent magnet, a spring or the like on a membrane of the manometric capsule 16. If the liquid level of the wash tank reaches a fill or safety rating, the pressure acting by the pressure chamber of the level regulating device and the pipe conduit 18 on the pressure capsule 16 closes the shut-off valve

  14 and stops the water supply to the wash tub.

  When the latter is emptied and the manometer capsule

  the valve is discharged, said shut-off valve reopens.

  The multiple pipe 19 also contains an electrical line 20 which starts from the electrical assembly of the household appliance and ends at the electromagnetic coil of the filling valve 15, its introduction into the body 2 of the inlet valve 1 being also provided by the enlarged connection pipe 9. The filling valve is closed in the absence of tension; in the steps of the water supply program, it is solicited by the order

  program and open for a limited time.

  While the supply pipe 6 is moving towards

  the washing tub of the appliance, the drain hose

  8 is connected, on the machine side, to a drain pump and the leakage water pipe 10 surrounding these two pipes can, in a first embodiment, open freely in a

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  waste water collection tray disposed from the bottom of the appliance in the home appliance. In this collecting tray is a float which, at the appearance of leakage water, causes via a switching device the closure of the filling valve 15. According to another embodiment, the hose of leakage water can be supplied to the level regulator device or the wash tank, so that the leakage water is triggered, through the level regulator device and the capsule

  16, closing the shut-off valve 14.

  According to Figure 1, there is in the body of the inlet valve 1 a bend 23, connecting channel or other similar device which connects the waste water inlet pipe 7 for the discharge pipe 8 to a second manifold

  outlet 21 for an exhaust pipe extension 22.

  Said exhaust pipe extension 22 brings from the inlet valve 1 to the permanently established wastewater network.

  the washing liquid to be evacuated by pumping.

  According to Figure 2, the discharge pipe 8 or an extension of said discharge pipe out of the body 2 downstream of the widened connecting pipe 9 without changing direction. This same discharge pipe 8 can be guided along the body 2 by a clamp 24, or other

  similar element, fixable on the latter.

  To allow the lines, or lines, to be supplied to the home appliance in an even more orderly and less cumbersome manner, the multipipe 19 may

  also be combined with the mains cable 25 of that

  mera. For this purpose, the leakage water pipe 10 may comprise

  on its envelope a snout formed by elastic lips

  in which the mains cable 25 will be able to be accommodated to the desired length. It is advantageous for the shipment of the domestic appliance that the body 2 of the inlet valve 1 has a false socket, bores or other similar housing for the mobile socket 27 of the mains cable.

Claims (7)

  1. Flood safety device, for water-consuming household appliances, especially machines   a dishwasher and a washing machine, having a feed pipe   connected by a machine-controlled inlet valve to a shut-off valve in a water distribution network, the inlet valve, connected to the shut-off valve by   a fresh water intake manifold with a tubular   outlet lure for supply pipe, tubing   widened, for connection of a leakage water hose,   placed around said outlet pipe, a wastewater inlet pipe for a discharge pipe and finally a second outlet pipe for an extension of the discharge pipe to the permanently installed wastewater network, according to claim 4 of the main French patent application No. 85 10584 and further characterized by the fact that, in the body (2) of the inlet valve (1), a feed channel ( 11) leads from the fresh water inlet pipe (3), connectable by screwing to the shut-off valve by a union nut (4) or the like, to the first outlet pipe (5) for connecting the pipe supply (6), a pressure control valve (14) controlled by pressure, mechanical effect and permanent magnet, and, either upstream or downstream, in flow direction, a solenoid valve filling (15) are arranged in said supply duct, that, in addition to the first intake manifold, (5) for the supply pipe (6), the waste water inlet pipe (7) for the discharge pipe (8) and a control pipe joint (17) to a manometer capsule ( 16) of the shut-off valve (14) are also integrated in the widened connection pipe (9) for the leakage water pipe (10) and that said control pipe joint (17) is connected. by a flexible pipe (18) to a sub-chamber 25895S2   pressure or the like of the level regulator device the home appliance.   Safety device according to Claim 1, characterized in that the fresh water inlet pipe (3) and the first outlet pipe (5), or the   enlarged connection pipe (9) with intake pipe   wastewater connection (7) and control line junction (17) are arranged, in mutual alignment or in parallel offset planes, on two opposite faces of the inlet valve body (2) and that the stop (14) and the filling valve (15) are correspondingly aligned in said valve body.   3. Safety device according to claim 1 characterized in that, in the region of the widened connecting pipe (9), the discharge pipe (8) or the extension (22) thereof are out of the pipe d leakage water (10) and flow next to the body of the inlet valve. 4. Safety device according to claim 3 characterized in that a clamp (24) or   another similar element is fixed permanently or amo-   on the body (2) of the inlet valve to guide the   exhaust pipe (8) or the extension (22) thereof.   5. Safety device according to claim 1 characterized in that it comprises, in the body (2) of the inlet valve, a bend (23) connecting the water intake manifold. worn (7) for the discharge pipe (8) at the second outlet pipe (21) for the extension (22) of said drain pipe.   6. Safety device according to claim 1 characterized in that a power line (20)   connecting the control unit of the machine to the electro-   filling valve (15) is supplied to the body (2) of the inlet valve through the connection pipe enlarged (9).   7. Safety device according to claim 1   characterized in that the body (2) of the gate valve   shown has a false socket or the like as a carrier for shipping the plug (27)   the mains cable of the appliance.