DE20008407U1 - Device for dispensing liquid - Google Patents

Description

SCHÄFER WERKE GMBH 2000-05-08/Pat/Re/Schm

PO Box 1120 PS 2001

57272 Neunkirchen

Device for dispensing liquids Description:

The invention relates to a device for dispensing liquid according to the preamble of claim 1.

Devices for dispensing liquid from a container, the contents of which are pressurized by a gas cushion and the liquid, e.g. a drink, is dispensed via a dip tube in the container, a tap head and a tap, have been known for a long time. The gas cushion can be built up in different ways using a hand or motor pump or from pressure bottles. With these known devices, a liquid, e.g. a drink or drinking water, is only dispensed for as long as it is still safe to drink based on its shelf life. If there is a risk or suspicion of contamination or germs, the drinking water can no longer be used, for example. For a number of applications, this can mean that no drinking water is available at all.

The object of the invention is to create such a device for dispensing liquids that allows pure liquid, e.g. drinkable drinking water, to be made available even when only raw water is available. The existing standardized components of the dispensing technology, which are also inexpensive, should be used as far as possible.

This task is fulfilled by a device that has a filter element that is arranged between the liquid outlet of a connection unit and the dispensing device. With such a device, standardized containers with the necessary pressure resistance, e.g. for at least 2 bar overpressure, and equally standardized closures with dip tubes and valves as well as a connection unit from beverage technology are used. The container contains, for example, contaminated drinking water or raw water, which is made drinkable by the device for people, including those with special requirements for purity and freedom from germs, such as small children and the sick. For this purpose, the main innovation is that a filter element is arranged between the liquid outlet and the dispensing device, which removes all harmful substances from the water. Depending on the type, such filters have a more or less high flow resistance, which is overcome by a correspondingly high delivery pressure of the liquid.

In addition to drinking water, other liquids can also be cleaned in the same way using the device.

The device according to the invention can be used with good success as a mobile unit when camping, in hospitals without a secure water supply in developing areas and in crisis areas (floods, earthquakes, droughts).

An embodiment of the invention is described in more detail with reference to Fig. 1.

Fig. 1 shows such a device, which essentially consists of the container 1, the closure 3 inserted into the connection 2, the connection unit 5, the compressor 9, the filter 11 and the dispensing device 12 with outlet 13 and the hoses or pipes connecting the individual components. The compressor 9 is connected to the closure unit 5 via the gas inlet 14, the filter 11 is connected via the liquid outlet 15. The closure unit 5 is mechanically connected on the container side to the closure 3, in which the liquid valve 6 and the gas valve 7 are integrated, and has an actuating element 8 for simultaneously opening or closing the liquid valve 6 and the gas valve 7.

To produce filtered liquid, e.g. drinking water, the container 1 is filled with unfiltered liquid, e.g. raw water, and the closure 3 is installed in the connection 2. After the connection unit 5 has been put on, the compressor 9, filter 11 and dispensing device 12 have been connected via hoses or pipes and the valves 6 and 7 have been opened, the container contents are brought to the necessary high pressure via the compressor 9 so that when the dispensing device 12 is opened, a sufficiently large amount of liquid flows via the immersion pipe 4, valve 6, filter 11 from the outlet 13 as filtered liquid, e.g. healthy, drinkable drinking water.

Filling, e.g. with raw water, can also be done via another lockable filling connection (not shown). In this case, connection 2 is not opened for filling, and connection unit 5 remains on closure 3.

List of reference symbols

1 container

2 Connection

3 Closure

4 Dip tube

5 Connection unit

6 Fluid valve

7 Gas valve

8 Actuator

9 compressors

10 Intake opening

11 Filter element

12 Tap organ

13 Outlet

14 Gas inlet

15 Fluid outlet

16 Grip edge

17 Stand

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Claims (4)

1. Device for dispensing liquid, consisting of a transport container with a closure inserted into a connection in the upper end base with a gas inlet and a liquid outlet and with an integrated valve each for the gas inlet and the liquid outlet from a dip tube reaching to the bottom of the container, a connection unit, a compressor with suction opening, a dispensing device with outlet and with lines connecting the individual elements, characterized in that a filter element ( 11 ) is arranged between the liquid outlet ( 15 ) and the dispensing device ( 12 ). 2. Device according to claim 1, characterized in that the compressor ( 9 ) is a mechanically hand- or foot-operated or motor-driven air pump. 3. Device according to claim 1, characterized in that the compressor ( 9 ) is a hand pump which is firmly connected to the connection unit ( 5 ) via the liquid outlet ( 15 ). 4. Device according to claim 3, characterized in that the dispensing element ( 12 ) is firmly connected to the hand pump and the filter ( 11 ) is attached to the container ( 1 ) via a holding device, e.g. to the handle edge ( 16 ).