DE102018006577A1 - Device for filtering water - Google Patents

Abstract

The invention relates to an exchange and / or refill housing for a water filter which is located in an assembly outer housing and is filled with a filter substrate suitable for cleaning water. The material of the outer casing assembly does not come into contact with the medium to be cleaned and therefore there are no unsanitary and / or harmful impurities. In addition, changing, refilling and cleaning the exchange and / or refill housing is simple and inexpensive.

Description

The invention relates to an exchange and / or refill housing for a water filter according to the preamble of claim 1.

Such replacement and / or refill housings are used in private and commercial kitchens or sanitary facilities. For example, the water supply before or after the tap is equipped with such an exchange and / or refill housing, and so the tapped water is cleaned of impurities.

Exchange and / or refill housings in the interior of which a filter substrate is located are known. The filter is designed, for example, as a powder filling, as a granulate filling or by means of a cartridge in which the filter substrate is located. Exchange and / or refill housings are usually enclosed by an outer housing and form an assembly. The outer housing is used not only to hold the replacement and / or refill housing, but also for connection to the water pipe. Since the cleaning function of the filter substrate decreases with increasing amount of water through which it flows, it is important that the filter substrate can be cleaned and / or replaced after a certain amount of water has flowed through.

A disadvantage of existing replacement and / or refill housings is the direct contact of the water flowing through with the outer housing and / or the time-consuming process of changing the filter and / or the high cost of the filter cartridge and / or the unwieldy refilling of the filter substrate.

The invention has for its object to provide a water filter in which the exchange and / or refill housing can be replaced and / or cleaned and / or refilled easily, hygienically and inexpensively.

This object is achieved in a generic exchange and / or refill housing by the characterizing features of claim 1.

The replacement and / or refill housing is encapsulated in a watertight manner inside the outer housing and the cover for water inlet and water outlet.

This creates an exchange and / or refill housing with which the filter function can be prepared or restored hygienically, inexpensively and simply. The invention is advantageously a filter system which guides the water through the water filter through a simple sealing concept. Further embodiments of the invention are the subject of the dependent claims.

In a simple and inexpensive embodiment, the sealing concept can be implemented using O-rings. The O-rings are placed on the water inlet cover and on the water outlet cover and the exchange and / or refill housing and prevent direct contact of the water with the outer housing and at the same time enable simple and quick replacement of the exchange and / or refill housing.

For the purpose of cost-effective implementation of the exchange and / or refill housing, this can be produced as a two-part plastic housing using the injection molding process. The filter substrate can be filled in before or after the assembly of the two plastic parts. The connection of the two plastic parts can advantageously be realized by means of ultrasonic welding processes.

In an expedient and functionally reliable development, the exchange and / or refill housing and the outer housing can have a cylindrical shape.

For the environmentally friendly use of resources, it may be useful for the process of refilling and / or cleaning the water filter to be carried out not by the end customer but by the manufacturer of the filter substrate or the replacement and / or refill housing.

The water filter assembly consisting of outer housing, water inlet cover and water outlet cover and the replacement and / or refill housing according to the invention and its filling with a filter substrate is particularly suitable for use in households for cleaning the water made available from the water pipe for the purpose of consumption. The exchange and / or refill housing ensures the filter function by simple and inexpensive exchange and / or refill and / or cleaning.

• In vielen Haushalten finden heutzutage Brauchwasserfilter z.B. am Wasserhahn ihren Einsatz. Die dabei eingesetzten Systeme sind entweder nach kurzer Zeit unhygienisch oder haben ihre Filterfunktion ganz oder teilweise verloren und / oder reduzieren den Wasserdurchfluss.

For a particularly preferred embodiment of the exchange and / or refill housing according to the invention, the following can be stated:

• In many households nowadays, domestic water filters are used, for example on the tap. The systems used are either unsanitary after a short time or have lost all or part of their filter function and / or reduce the water flow.

The water filter consists essentially of a three-part outer housing in which the replacement and / or refill housing is located, e.g. is filled with a filter substrate made of activated carbon. There are two screw connections on the two lids, one being designated as a water inlet to the filter and the other as a water outlet from the filter. The water filter is installed in the installation so that the water flows into the water inlet cover, is cleaned within the replacement and / or refill housing, and re-enters the water pipe through the water outlet cover and then e.g. The seal with O-rings prevents the water from coming into contact with the metal of the outer housing.

The advantages achieved with the invention consist in particular in that the water filter has a stable outer housing made of metal, but this does not come into contact with the medium to be cleaned and thus no unsanitary and / or harmful impurities due to the dissolution of heavy metals or reaction processes such as e.g. due to corrosion. In addition, changing, refilling and cleaning the exchange and / or refill housing is simple and inexpensive. As a result, water filters can be designed in a very robust and yet very cost-effective manner and can be used in large numbers, especially in countries with an insufficient domestic water standard, in order to increase the quality of the domestic water with little effort.

An embodiment of the invention with various developments and refinements is shown in the drawings and is described in more detail below.

• 1 eine Baugruppe Wasserfilter an einem Wasserhahn installiert in einer Duschkabine
• 2 eine Baugruppe Wasserfilter in Seitenansicht
• 3 eine Baugruppe Wasserfilter in perspektivischer Ansicht von der einen Seite und
• 4 eine Baugruppe Wasserfilter in perspektivischer Ansicht von der anderen Seite
• 5 eine Baugruppe Wasserfilter in einer Schnittansicht
• 6 eine Baugruppe Wasserfilter in Schnittansicht mit Anschlussadapter
• 7 eine Baugruppe Wasserfilter mit Anschlussadapter in perspektivischer Ansicht
• 8 eine Baugruppe Wasserfilter mit einem Standardfilter und passendem Filteradapter

Show it

• 1 a water filter assembly on a faucet installed in a shower cubicle
• 2 a water filter assembly in side view
• 3 a water filter assembly in a perspective view from one side and
• 4 a water filter assembly in perspective view from the other side
• 5 an assembly water filter in a sectional view
• 6 a water filter assembly in sectional view with connection adapter
• 7 a module water filter with connection adapter in a perspective view
• 8th a water filter assembly with a standard filter and a suitable filter adapter

In 1 is a shower cabin ( 7 ) with a tap / mixer tap ( 8th ) to see. That from the tap / mixer tap ( 8th ) escaping water flows into the exchange and / or refill housing ( 1 ) in which the filter substrate ( 9 ) is located. The through the filter substrate ( 9 ) cleaned water flows out of the replacement and / or refill housing ( 1 ) and is through the shower hose ( 13 ) to the shower head ( 14 ) forwarded.

In the 2 and 3 and 4 Water filter assembly shown in more detail ( 11 ) shows an outer housing ( 3 ) a water inlet cover ( 4 ) and a lid water outlet ( 5 ) These three individual parts are advantageously screwed or locked together for easy opening and closing again.

In the in 5 shown sectional view can be seen where the water in the exchange and / or refill housing ( 1 ) arrives. The interior inside ( 15 ) enables filling with a filter substrate ( 9 ). The filter substrate ( 9 ) is due to a cutout on the replacement and / or refill housing ( 1 ) visible. The two o-rings 6 ' and 6 " prevent the water from coming into contact with the outer casing ( 3 ) the water inlet cover ( 4 ) and the lid water outlet ( 5 )

6 shows a sectional view with additional connection adapter ( 10 ) this component enables the water filter assembly ( 11 ) also to be installed in a position that is very close to a wall or another object that hinders the installation.

7 shows the assembly water filter with mounted water distance adapter in a perspective view.

8th shows a sectional view in which a standard filter is used. These filters can be used by using a suitable filter adapter ( 12 ) be used. Suitable filter adapters ( 12 ) enable the use of various designs of standard filters on the market.

LIST OF REFERENCE NUMBERS

1:

Exchange and / or refill housing

2:

Lid for replacement and / or refill housing

3:

outer casing

4:

Water inlet cover

5:

Water outlet cover

6 '6 ":

O-ring

7:

shower cabin

8th:

Faucet / mixer

9:

filter substrate

10:

connection adapter

11:

Water filter assembly

12:

filter adapter

13:

shower hose

14:

shower head

15:

inner space

16:

Standard filter

Claims (5)

Exchange and / or refill housing (1), which is located in a water filter assembly (11), and is filled with a filter substrate suitable for cleaning water, characterized in that the exchange and / or refill housing (1) is provided with seals For example, O-rings (6 ', 6 ") are encapsulated in a watertight manner by the water filter assembly (11) and the water flowing through does not come into contact with the components of the water filter assembly (11). Exchange and / or refill housing (1) according to Claim 1 , characterized in that the material of the exchange and / or refill housing (1) consists of renewable, biodegradable raw materials. e.g. wood. Exchange and / or refill housing (1) according to Claim 1 , characterized in that, by design, the water flows from the outside in through the filter. Exchange and / or refill housing (I) according to Claim 1 , characterized in that the filter substrate consists of solids such as granules or a powder or of membranes or pressed or sintered substances. eg activated carbon. Exchange and / or refill housing (1) according to Claim 1 , characterized in that a spacer adapter allows mounting in positions that are very close to a wall or other object that hinders the installation.

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