DE202008007246U1 - Water filter and its filter element - Google Patents

Abstract

Filter having an upper cover (10) which is screwed to a container (20) and on the underside of a central collar (12) and on the top of a water inlet (14) and water outlet (15), and
a container (20) having a receiving space (22) having on the bottom a projection (23) and in which a filter cartridge (30) is received, which has a cavity (31) and contains a filter material (32), the bottom of the filter insert (30) being provided with a positioning recess (33) engageable by the projection (23) of the container (20), a positioning element (34) being provided at the upper end of the cavity (31) an outer diameter corresponding to the inner diameter of the collar (12) and provided with a sealing ring (35), characterized in that
in the positioning element (34) radial ribs (36) are integrally formed, which protrude from the top of the positioning (34) and with the positioning element (34) concentric guide surfaces (360) form, the ...

Description

Technical area

The The invention relates to a water filter and its filter cartridge, the filter insert is easily and quickly inserted into the water filter can be.

State of the art

Of the Filter insert of the water filter must be replaced regularly. At the Replacement of the filter insert leaves the positioning of the filter insert difficult in the collar stuck to the top cover when the filter cartridge on a projection on the bottom of the container is plugged and thus fluctuates back and forth.

The Positioning element may be provided with a sealing ring, the conical is trained. The interior of the collar of the upper lid has accordingly a conicity, so that a tightness is achieved.

• 1. die Länge des Filtereinsatzes darf eine Abweichung von 1 bis 1,5 mm nicht überschreiten, so dass die Herstellung schwer ist;
• 2. der konische Dichtring kann zwar den Filtereinsatz in den Kragen führen, kann jedoch eine Schwankung des Filtereinsatzes nicht vermeiden;
• 3. durch die Konizität wird der Wasserdurchsatz reduziert;
• 4. beim Verbinden des Behälters mit dem Oberdeckel muss der Behälter gegen den Oberdeckel gedrückt werden, was sehr kraftaufwendig ist.

However, this conventional water filter has the following disadvantages:

• 1. The length of the filter insert must not exceed a deviation of 1 to 1.5 mm, so that the production is difficult;
• 2. Although the conical sealing ring can guide the filter cartridge in the collar, but can not avoid a fluctuation of the filter cartridge;
• 3. the taper reduces the water flow;
• 4. when connecting the container to the upper lid, the container must be pressed against the upper lid, which is very power consuming.

Object of the invention

Of the Invention is based on the object, a water filter and its To create a filter insert, wherein the filter insert easily and quickly in the water filter can be used.

This object is achieved by the filter according to the invention and its filter insert, consisting of an upper lid, which is bolted to a container, on the underside of a central collar and on the top of a water inlet and outlet and a container having a receiving space on the bottom has a projection and in which a filter cartridge is received, which has a cavity and containing a filter material, wherein the underside of the filter insert is provided with a Positionierausnehmung, in which the projection of the container can engage, wherein at the upper end of the cavity a positioning element is provided, which has an outer diameter which corresponds to the inner diameter of the collar of the upper lid and is provided with a sealing ring, characterized in that
in the positioning element radial ribs are integrally formed, which protrude from the top of the positioning and form with the positioning concentric guide surfaces, which increase from the vertex of the ribs down, the Leitstrecke the guide surfaces is greater than the distance between the inner wall of the receiving space the container and the outside of the filter cartridge.

According to the invention can Filter inserts into each other intervene and in a longer Container added become.

Brief description of the drawings

1 an exploded view of the invention,

2 a perspective view of the invention,

3 a sectional view of the invention,

4 a perspective view of the filter cartridge of the second embodiment of the invention,

5 a perspective view of the second embodiment of the invention,

6 a sectional view of the second embodiment of the invention,

7 a sectional view of a wrong assembly of the second embodiment of the invention,

8th a sectional view of the third embodiment of the invention.

Ways to execute the invention

Like from the 1 to 3 it can be seen, the invention consists of
an upper lid 10 , on the bottom of an annular recess 11 and a central collar 12 , on the outside of a threaded section 13 and on the top a water inlet 14 for connection with the water source, with the annular recess 11 connected and a water outlet 15 that with the interior of the collar 12 is connected,
a container 20 that's on the threaded section 13 of the upper lid 10 being screwed, being between the container 20 and the top lid 10 one O-ring 21 is provided and a recording room 22 which has a projection on the ground 23 has,
a filter cartridge 30 in the recording room 22 of the container 20 is arranged a cavity 31 and a filter material 32 contains, with the bottom of the filter cartridge 30 with a positioning recess 33 is provided, in which the projection 23 of the container 20 can engage, causing the filter cartridge 30 in the central region of the container 20 is positioned, being at the upper end of the cavity 31 a positioning element 34 is provided, which has an outer diameter, the inner diameter of the collar 12 corresponds, with a sealing ring 35 is provided and in the radial ribs 36 are integrally formed, forming a plurality of water channels, from the top of the positioning 34 stick out and the fins 360 form, extending from the vertex of the ribs 36 zoom down, the guide line A of the fins 360 is greater than the distance B between the inner wall of the receiving space 22 of the container 20 and the outside of the filter cartridge 30 ,

When inserting a new filter cartridge 30 First, take the lead 23 of the container 20 into the positioning recess 33 of the filter insert 30 one. As the lead A of the fins 360 is greater than the distance B between the inner wall of the receiving space 22 of the container 20 and the outside of the filter cartridge 30 , the filter element can 30 when unscrewing the container 20 on the upper lid 10 through the arcuate tops of the fins 360 coming from the positioning element 34 sticking out, in the collar 12 of the upper lid 10 be guided, even if the filter cartridge 30 in the recording room 22 fluctuates, causing the positioning element 34 light in the collar 12 can be pushed, so the replacement of the filter cartridge 30 easy and fast.

4 shows the second embodiment of the invention, which can be used for a larger water flow and thus a longer container 40 in which a first filter cartridge 41 and a second filter cartridge 42 are included. The first filter cartridge 41 has on the top a first positioning element 411 and on the underside a first positioning recess 412 on. The second filter element 42 has on the top a second positioning element 421 and on the underside a second positioning recess 422 on. As a result, the first positioning element 411 of the first filter cartridge 41 in the second positioning recess 422 of the second filter cartridge 42 intervention. In this way, the length of the filter cartridge can be increased.

The first filter cartridge 41 may have a sponge body to filter out the larger foreign particles such as sand in the water. The second filter element 42 can be made from activated carbon to filter off chlorine and microorganisms in the water.

Like from the 5 and 6 it can be seen, the first and second filter cartridge 41 . 42 also be made of the same filter material. When inserting the first filter element is first 41 in the container 20 pushed and through the projection 23 of the container 20 positioned. Subsequently, the first positioning element engages 411 of the first filter cartridge 41 in the second positioning recess 422 of the second filter cartridge 42 one. Finally, the upper lid 10 in the container 20 screwed.

By the upper and lower filter insert doubles the filter effect.

How out 7 it can be seen has the positioning element 34 still a backup effect. When the first filter cartridge 41 and the second filter cartridge 42 after connecting in the tank 20 pushed, the bottom of the second filter insert protrudes 42 from the recording room 22 of the container 20 out, leaving the lid 10 not in the container 20 can be screwed. Therefore, a wrong insertion of the filter cartridge 30 in the container 20 be prevented.

8th shows the third embodiment of the invention, wherein more than two filter cartridges 30 through the positioning element 34 and the positioning recess 33 interlock and in a longer container 40 are included.

Thereby can the filter element for Container with greater length used so that the manufacturing costs are reduced.

The invention thus relates to a water filter and its filter cartridge, wherein the filter cartridge ( 30 ) on the top of a positioning element ( 34 ) by radial ribs ( 36 ) are integrally formed, which from the top of the positioning ( 34 protrude) and with the positioning ( 34 ) concentric fins ( 360 ) extending from the vertex of the ribs ( 36 ), wherein the guide path (A) of the guide surfaces ( 360 ) is greater than the distance (B) between the inner wall of the receiving space ( 22 ) of the container ( 20 ) and the outside of the filter cartridge ( 30 ).

10

top cover

11

annular recess

12

collar

13

threaded portion

14

water inlet

15

water outlet

20

container

21

O-ring

22

accommodation space

23

head Start

30

filter cartridge

31

cavity

32

filter material

33

positioning recess

34

positioning

35

seal

36

rib

360

baffle

40

longer container

41

first filter cartridge

411

first positioning

412

first positioning recess

42

second filter cartridge

421

second positioning

422

second positioning recess

A

conductive path

B

distance

Claims (8)

Filter with an upper cover ( 10 ) with a container ( 20 ) and on the underside a central collar ( 12 ) and on the top a water inlet ( 14 ) and water outlet ( 15 ), and a container ( 20 ), which has a receiving space ( 22 ), which on the ground a projection ( 23 ) and in which a filter cartridge ( 30 ), which has a cavity ( 31 ) and a filter material ( 32 ), wherein the underside of the filter cartridge ( 30 ) with a positioning recess ( 33 ) into which the projection ( 23 ) of the container ( 20 ), wherein at the upper end of the cavity ( 31 ) a positioning element ( 34 ) is provided, which has an outer diameter of the inner diameter of the collar ( 12 ) and with a sealing ring ( 35 ), characterized in that in the positioning element ( 34 ) radial ribs ( 36 ) are integrally formed, which from the top of the positioning ( 34 protrude) and with the positioning ( 34 ) concentric fins ( 360 ) extending from the vertex of the ribs ( 36 ), wherein the guide path (A) of the guide surfaces ( 360 ) is greater than the distance (B) between the inner wall of the receiving space ( 22 ) of the container ( 20 ) and the outside of the filter cartridge ( 30 ). Filter according to claim 1, characterized in that the upper cover ( 10 ) on the underside an annular recess ( 11 ) and a central collar ( 12 ) and on the top a water inlet ( 14 ), which with the annular recess ( 11 ) and a water outlet ( 15 ) connected to the interior of the collar ( 12 ) is connected. Filter according to claim 1, characterized in that the positioning element ( 34 ) of the filter insert ( 30 ) in the lower positioning recess ( 33 ) of another filter insert, whereby more than two filter cartridges lying on top of each other in a longer container ( 40 ) can be recorded. Filter according to claim 1, characterized in that the positioning element ( 34 ) of the filter insert ( 30 ) in the lower positioning recess ( 33 ) of another filter insert, whereby more than two filter cartridges lying one above the other in the container ( 20 ) can be recorded. Filter insert according to claim 1, characterized in that the filter insert ( 30 ) on the top of a positioning element ( 34 ), in which ribs ( 36 ) formed from the positioning element ( 34 protrude) and with the positioning ( 34 ) concentric fins ( 360 ) form, and on the bottom of a Positionierausnehmung ( 33 ) having. Filter insert according to claim 5, characterized in that the filter insert ( 30 ) a cavity ( 31 ) and a filter material ( 32 ), wherein the positioning element ( 34 ) with a sealing ring ( 35 ) is provided. Filter insert according to claim 5, characterized in that the guide surfaces ( 360 ) from the vertex of the ribs ( 36 ) downwards. Filter insert according to claim 5, characterized in that the ribs ( 36 ) radially in one piece in the positioning element ( 34 ) are formed and form a plurality of water channels, wherein the top of the ribs ( 36 ) from the positioning element ( 34 protrude) and with the positioning ( 34 ) concentric fins ( 360 ) form.