DE8405924U1 - SAFETY INLET HOSE FOR WASHING OR DISHWASHER - Google Patents

Description

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EBHZ-84/06 - 3 - 02/24/1984

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L i c e nt i a

Patent-Verwaltungs-GmbH
Frankfurt / Main

Safety inlet hose for washing machines or dishwashers

The innovation relates to a safety lock on hose according to the generic term of the protection claim 1.

A safety inlet hose of this type is e.g. from DE-OS 28 17 001 known. In this safety inlet hose, the water supply to the inlet hose is shut off in the event of the inlet hose bursting or the like Valve device constructed in a relatively expensive and technically extremely complex manner.

The task of the innovation is the safety inlet hose of the aforementioned Kind of technically simpler to design without affecting its safety function.

The solution to this problem according to the innovation is in the protection claims indicated.

The innovation creates an inexpensive and reliably working safety inlet hose that can be used for a relatively large area of application.
20th

Two embodiments of the innovation are shown in the drawing and are described in more detail below on the basis of these.

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EBHZ-84/06 - 4 - 02/24/1984

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The hose connection 1 shown in the figures has a device-side Connector 2 and a connector 3 for connection to a non Shown shut-off valve of a water pipe network .. The hose connection 1 consists of a pressure-resistant ZuI, which is under water line pressure when the stopcock is open, also 4, that of another Hose body 5 tightly with the formation of a space 6 on all sides is wrapped or enclosed. The tubular body enclosing the ZuI on hose 4 5 serves as a leakage water hose, which is intended to prevent leakage water from escaping into the open in the event of a bursting of the inner ZuIaufsehtauches 4.

The ZuI also looks up 4 and the hose body 5 surrounding it is On the water inlet side, on a pressure body 30 that can be connected to the tap tightly fastened. A leakage water channel 7 leads from the intermediate space 6 through the pressure body 30 to a float chamber placed on the pressure body 30 8, in which a float 9 with a magnetic core 10 is housed. An iron core 11, 11 'is located below the float chamber floor 12 provided or embedded in the top wall 13 of the float chamber 8. The lower iron core 11 is followed by a membrane 15 as a pressure-dependent shut-off valve for the water inlet 14 to the inner inlet on hose 4, which has a water passage opening 16 to the membrane pressure chamber 17. The water passage opening 16 provides a flow connection Membrane pressure chamber 17 to the line-side water inlet 18 in the pressure body 30 ago. If the pressure-resistant inlet hose 4 is now connected to any one If there is a leak, pressure builds up briefly in the hose gap 6 on. The float chamber 8 is flooded via the leakage water channel 7 and thus the float 9 with its magnetic core until it adheres to the Ceiling wall 13 raised. The membrane 15 thus falls into its valve seat 14 'at the water inlet 14 to the ZuS also looks up 4. The relatively thin-walled one and the viscoplastic outer hose body 5 only has to withstand a low pressure, since the float 9 already has a small increase in pressure in the float chamber 8 responds quickly and the water access to the ZuI on hose 4 is shut off by the membrane 15.

In the embodiment according to FIG. 2, the same parts with the same

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EB HZ-84 / 06-5 - 02/24/1984

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Reference numerals are provided, the space 6 and the float chamber 8 filled with a liquid 20. The float chamber floor 12 ' has a protruding into the float chamber 8 protuberance 21 in which one the valve needle 22 held by the magnet 10 'of the float 9' is housed is. The valve needle 22 acts with its needle tip 22 'with a centric Opening 23 in the membrane 15 together. Part of the leakage goes through Liquid 20 is lost from the space 6, so the float 9 'sinks and the valve needle 22 enters the opening 23 with its needle tip 22 ′ the membrane 15 and thereby blocks the entry of water into the water inlet 14 of the ZuI on hose 4.

Claims (5)

claims 1. Safety inlet hose for making a hose connection between a shut-off valve of a water supply network and a connection to a device or a machine, in particular to a washing machine or Dishwasher, with the inlet hose part connectable to the shut-off valve and the device-side ZuI on the hose part each assigned a connector and the inlet hose under water pressure from a another hose body is tightly wrapped to form a space and the space with a hose shut off the water supply to the ZuI Valve device is connected, characterized in that the ZuI also looks up (4) and the hose body (5) surrounding it on the water inlet side are tightly attached to a pressure body (30) that can be connected to the faucet, and in the pressure body (30) one is in communication with the intermediate space (6) standing leak water channel (7) is provided, which ends in the float chamber (8) and in the float chamber (8) an iron or Magnetic core (10) having float (9) is accommodated, through which the shut-off position of a membrane (15) for the water inlet (14) to the inlet hose (4) can be influenced. 2. Safety inlet hose according to claim 1, characterized in that a liquid (20) in the space (6) and in the float chamber (8) is brought in, 3. Safety inlet hose according to claim 1 or 2, characterized in that EB HZ-84/06 - 2 - February 24, 1984 Ku / ub net that the float chamber bottom (12 ¹ ) is provided with a protuberance (21) protruding into the float chamber (8). 4. Safety inlet hose according to claim 3, characterized in that one of the magnet (10 ¹ ) of the float (9 ¹ ) held in the protuberance (21) Valve needle (22) is housed. 5. Safety inlet hose according to claim 4, characterized in that the membrane (15) has an opening corresponding to the valve needle (22) (23). t · ■ I » • ·