FR2567392A1 - FLOOD SAFETY DEVICE FOR HOUSEHOLD WATER APPLIANCES - Google Patents

Abstract

SAFETY DEVICE AGAINST FLOODS, FOR HOUSEHOLD APPLIANCES USING WATER, ESPECIALLY FOR DISHWASHING MACHINES, INCLUDING A MULTIPLE HOSE 17 ASSEMBLING THE INLET PIPE 8, THE LEAK WATER PIPE 12 AND THE LEAK PIPE EVACUATION 15. AN ELECTRICAL DUCT 13, CONNECTING THE MACHINE CONTROL DEVICE TO AN INPUT SOLENOID VALVE 6, IS ADVANTAGEALLY INTEGRATED IN THE MULTIPLE PIPE 17. FIELD OF APPLICATION: HOUSEHOLD APPLIANCES, IN PARTICULAR DISHWASHING MACHINES AND MACHINES FOR WASH THE LAUNDRY.

Description

FLOOD SAFETY DEVICE,

  FOR HOUSEHOLD APPLIANCES USING WATER

  The invention relates to a flood safety device for household appliances using water, in particular for dish washing machines and washing machines, comprising: a supply pipe connected by an inlet valve controlled by the machine, at a shut-off valve in the water distribution network; a leakage water collecting tank arranged in the machine, bottom side; a control device disposed in this tank and closing the water inlet when the leakage water appears; a leakage water pipe starting from the inlet valve, enveloping the supply pipe and opening freely into the leakage water collecting tank; and a drain pipe from the machine's drain pump to a network

sewage disposal.

  In a known safety device of this type (patent DE 30 14 427), the leakage water leaving the supply pipe during a rupture of the latter is brought, by the leakage water pipe, into a collecting tank where a switching device causes the water supply to close immediately. This 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 the device's drain pump. , which is connected, by a drainage pipe, to the site's wastewater drainage network. If the inlet valve connected to a shut-off valve in a pipe of the water distribution network is constituted by a solenoid valve actuable by the machine control device, the solenoid of the inlet valve is then connected , by an electrical line, to the control device, for example to the program control device and / or to a switching device in the

  machine leakage water collecting tank.

  The inlet pipe of the inlet valve is screwed to the outlet of the shut-off valve at the installation site, and the supply pipe going, via a safety valve located on the machine side, to the machine wash is attached to the outlet tubing of this inlet valve. From the inlet valve also leaves the leak pipe which is fixed to it by means of a collar and which receives the supply pipe and opens freely in the collecting tank. The object of the invention is to provide a safety device of the type mentioned at the start so that the connection of the household appliance using

water is made easier and simplified.

  According to the invention, this object is achieved by the fact that the supply pipe, the leakage water pipe and the discharge pipe are combined in a multiple pipe. The grouping of the supply, leakage and discharge pipes into a multiple pipe makes it possible to obtain a simple and well-adapted arrangement of the pipe connections. The inlet valve can be pre-assembled to the multiple pipe. In addition, keeping the stock of spare parts at the manufacturer is simplified. Among the different possible embodiments, the invention provides in particular that - conduits acting as leakage water pipe and discharge pipe are integrated into a multiple pipe in one piece, and the supply pipe constitutes an additional duct of the multiple pipe, - or is inserted inside one of the ducts of this common pipe; - an electrical pipe connecting the machine control device to a water inlet solenoid valve is integrated in the multiple pipe; - the inlet valve that an intake manifold connects to the shut-off valve of a pipe in the water distribution network has: an outlet manifold for the supply pipe; an enlarged manifold, for connection of the leakage water pipe, arranged around said outlet manifold; a second intake manifold for the exhaust pipe; and a second outlet pipe for an extension of the discharge pipe going to the wastewater evacuation network; - the second intake manifold of 14 inlet valve for the discharge pipe and the second outlet manifold that this inlet valve comprises for the extension of the discharge pipe going to the wastewater drainage network are connected to each other by a channel of the body of the inlet valve; - the multiple pipe has an oblong, oval to rectangular section, with walls separating pipes for the drain pipe, for the leak water pipe and for the electrical pipe, and the supply pipe passes through the pipe leak water hose; - The multiple pipe has a section substantially in the shape of an 8, in a first circular portion from which the conduit of the discharge pipe passes, and in a second circular portion from which passes the pipe for the leakage water pipe; and the supply pipe passes concentrically in the pipe of the leakage water pipe; in addition, the insulated electrical pipe is either provided in the annular gap between supply and leak water pipes, or arranged in a wall of the multiple pipe; - the multiple hose in one piece branches into the machine enclosure, the supply hose being connected to a safety valve belonging to the machine, the evacuation hose being connected to the discharge pipe of the drain pump, the electric line being connected to the control device and / or to a valve belonging to the machine, and the leakage water pipe opening freely into the tank

leakage water collector.

  The characteristics and advantages of the invention

  will appear more fully in the description

  following of nonlimiting examples presented with reference to the appended drawing, in which: - Figure 1 is a simplified representation of a dishwashing machine that a common pipe connects to an inlet valve mounted on the tap d '' stopping a pipe in the water distribution network and the wastewater evacuation network; - Figure 2 shows a cross section of a common pipe in which the leakage water pipe and the discharge pipe are integrated, and in which also pass the inlet pipe and an electrical pipe; - Figure 3 shows the cross section of another embodiment of the common pipe; and - Figure 4 is a partial sectional view of

  the inlet valve to which the common pipe is attached.

  The dishwashing machine has a washing container 1 below which there is a leakage water collecting tank, 2, arranged in the machine, on the bottom side. The dishwashing machine is supplied with water from a pipe in the distribution network, by means of a stop valve 3 to which is fixed, by a connection nut 4, the tubing d admission 5 of an inlet solenoid valve 6 controlled by a program control device (not shown) of the dishwashing machine. Starting from an outlet pipe 7 of the inlet valve 6, a supply pipe 8 goes to a safety valve 9 belonging to the machine and, from there, to the washing container 1 via a water intake part , 10. A leakage water pipe 12 enveloping the supply pipe 8 starts from a connection pipe 11 surrounding the outlet pipe 7 for the supply pipe 8 and goes to the water collecting tank of

leak 2 into which it leads.

  To control the inlet solenoid valve 6, the solenoid thereof is connected, by an electrical line 13, to the machine control device (not shown), constituted for example by a program control device, and / or to a valve which belongs to the machine and which, for example, stops the supply of water to the washing container of the machine when the water in this container reaches a safety level. To empty the washing container 1, the dishwashing machine has a drain pump 14 to the delivery pipe from which is connected a discharge pipe 15 bringing the liquid to the site's wastewater pipe 16 of used washing which must

be evacuated by this pump.

  A particularly advantageous connection of the safety device is obtained, and a water supply which is hardly subject to failure thanks to the fact that the leakage water pipe 12, the supply pipe 8 and the drainage pipe 15 are brought together in a multiple pipe 17 in which the electrical line 13 going to the inlet valve 6 can also be included. Ducts for the various water paths can be integrated into a profile forming a multiple pipe, so that the supply pipe duct passes inside the leak water pipe duct, while the duct electric passes through the annular space between the supply pipe and the leakage water pipe, or is directly embedded in the profile. To connect the multiple pipe 17, the body of the inlet valve 6 has, in addition to the outlet pipe 7 going to the supply pipe 8 and the pipe 11 for the connection of the leakage water pipe, a inlet pipe 18 for the outlet pipe 15 and a second outlet pipe 19 for an extension of the outlet pipe, going to the waste water network 16. The body of the inlet valve 6 forms a channel 21 from intake manifold 18 to second

outlet pipe 19.

  The multiple pipe 17, in one piece, which can be mounted in advance on the inlet valve 6, makes it possible to advantageously obtain a defined and simple installation on the stop valve 3, and a connection to the pipe of the waste water evacuation network 16 which, as a rule, is located near this tap. The multiple pipe can be brought, in a space-saving manner and according to a defined arrangement, to the enclosure of the machine, and is branched into several separate pipes only in this enclosure, the supply pipe 8 being connected to the valve. safety device 9 belonging to the machine, the discharge pipe 15 being connected to the discharge pipe of the drain pump 4, the electrical pipe 13 being connected to the control device, while the leakage water pipe 12 opens

  freely in the leakage water collecting tank, 2.

Claims (8)

  1. Flood safety device for household appliances using water, in particular for dish washing machines and washing machines, comprising: a supply pipe connected by an inlet valve controlled by the machine, to a stopcock of the water distribution network; a leakage water collecting tank arranged in the machine, bottom side; a control device disposed in this tank and closing the water inlet when the leakage water appears; a leakage water pipe starting from the inlet valve, enveloping the supply pipe and opening freely into the leakage water collecting tank; and a discharge pipe running from the machine's drain pump to a wastewater discharge network; this device being characterized in that the supply pipe (8), the leakage water pipe (12) and the drainage pipe (15) are combined in one multiple pipe (17).   2. Device according to claim 1, characterized in that conduits acting as leakage water pipe (12) and discharge pipe (15) are integrated in a multiple pipe in one piece (17), and in that the supply pipe (8) constitutes an additional duct of the multiple pipe, or else is inserted inside one of the ducts of this multiple pipe. 3. Device according to claim 2, characterized in that an electrical line (13) connecting the machine control device to an inlet solenoid valve (6) is integrated in the pipe multiple (17).   4. Device according to claims 1 and 2,   characterized in that the inlet valve (6) that   intake manifold (5) connects to the shut-off valve (3) -   a pipe of the water distribution network present: an outlet pipe (7) for the supply pipe (8); an enlarged tube (11), for connection of the leakage water pipe (12), arranged around said outlet tube; a second intake manifold (18) for the exhaust pipe (15); and a second outlet pipe (19) for an extension (20) of the drainage pipe going to the network (16) waste water discharge.   5. Device according to claim 4, characterized in that the second inlet manifold (18) of the inlet valve (6) for the discharge pipe (15) and the second outlet manifold (19) that this inlet valve comprises for the extension (20) of the evacuation pipe going to the network (16) for evacuation of waste water are connected to each other   by a channel (21) of the body of the inlet valve.   6. Device according to any one of   Claims 1 to 3, characterized in that the hose   multiple (17) has an oblong, oval to rectangular section, with walls separating conduits for the drain pipe (15), for the drain water pipe (12) and for the electrical pipe (13), and in that the supply pipe (8) passes through the conduit of the leak water hose (12).   7. Device according to any one of   Claims 1 to 3, characterized in that the hose   multiple (17) has a substantially 8-shaped section, in a first circular portion through which the conduit of the drain pipe (15) passes, and in a second circular portion through which passes the conduit of the drain water pipe (12), in that the supply pipe (8) passes concentrically in the pipe of the leakage water pipe, and in that the insulated electrical pipe (13) is, is provided in the annular interval between supply and leak water pipes, either arranged in a multiple pipe wall.   8. Device according to any one of   Claims 1 to 4, characterized in that the hose   multiple in one piece (17) branches in the machine enclosure, the supply pipe (8) being connected to a safety valve (9) belonging to the machine, the discharge pipe (15) being connected to the discharge pipe of the drain pump (14), the electrical line (13) being connected to the control device and / or to a valve belonging to the machine, and the leaking water pipe (12) opening   freely in the leakage water collecting tank (2).