Filter cartridge and water filter device
View Patent ↗What is proposed is a filter cartridge for a water filter device comprising an inflow funnel, which comprises a valve, which is arranged in a flow channel and which has a valve body ( 304 ), which can be moved in the axial direction, in order to close the flow channel in a first position of the valve body and to release it in a second position. The filter cartridge has a housing, which comprises an inflow opening for unfiltered raw water on an upper side and an outflow opening for filtered water on a lower side and which contains a filter medium. An inversion ( 402 ) is arranged on a lower side of the housing. A valve puller ( 502 ) is arranged in the inversion, which valve puller has a main part ( 505 ) and an actuation means ( 514 ), which is molded thereon and which extends away from the main part ( 505 ) in the axial direction and which comprises a receiving hole, which is delimited by a grip edge ( 509 ) and which is formed so that it allows the reception of an actuation section ( 606 ) of the valve body ( 304 ).
1 . A water filter device comprising
an inflow funnel for holding unfiltered raw water,
a filter cartridge located within the inflow funnel, wherein the filter cartridge contains filter medium therein, wherein the filter cartridge has an inflow opening on a first side for receiving the unfiltered raw water, an outflow opening on a second side for providing filtered water and an inversion on the second side,
a valve puller arranged in the inversion, wherein the valve puller includes a hollow ring and an actuation means extending from the hollow ring in an axial direction of the inflow funnel, wherein the actuation means includes a receiving hole delimited by a gripping edge, and a valve located within a flow channel in the inflow funnel, wherein the valve includes an actuation section that is received by the actuation means of the valve puller and can be moved in the axial direction of the inflow funnel in order to close the flow channel when the valve is in a first position and to open the flow channel when the valve is in a second position.
2 . The water filter device according to claim 1 , wherein the actuation means is formed in the shape of a truncated cone having a pointed end and a lateral surface, the pointed end of which faces away from the hollow ring.
3 . The water filter device according to claim 2 , wherein the lateral surface of the truncated cone is a closed wall.
4 . The water filter device according to claim 2 , wherein the lateral surface of the truncated cone includes a plurality of strips separated by a plurality of windows, wherein the plurality of windows extend all the way to the receiving hole, so that the plurality of strips extend from the hollow ring to a free end.
5 . The water filter device according to claim 4 , wherein the plurality of strips include notches formed in a center thereof.
6 . The water filter device according to claim 2 , wherein the actuation means further includes a ring strip secured on the pointed end to act as the gripping edge.
7 . The water filter device according to claim 4 , wherein the actuation means further includes a ring strip secured to the free ends of the plurality of strips to act as the gripping edge.
8 . The water filter device according to claim 4 , wherein the plurality of strips include humps formed in a center thereof on an outer surface thereof.
9 . The water filter device according to claim 4 , wherein the plurality of strips are weakened in a center thereof.
10 . The water filter device according to claim 1 , wherein the actuation means further includes a plurality of spacing ribs formed on an outer circumference of the hollow ring, so that at least one gap is created between the hollow ring and an inner side of the inversion of the filter cartridge.
11 . The water filter device according to claim 1 , wherein the actuation means is formed elastically such that the gripping edge frictionally couples with the actuation section of the valve when the actuation means is deformed in the radial direction.
12 . The water filter device according to claim 1 , wherein the actuation means further includes a plurality of positioning ribs arranged on the hollow ring and extending perpendicular away from the hollow ring.
13 . A water filter device comprising
an inflow funnel,
a filter cartridge insertable into a receiving channel of the inflow funnel,
a valve arranged in a flow channel, wherein the valve can be moved in an axial direction of the inflow funnel, wherein the flow channel is closed when the valve is located in a first position and open when the valve is located in a second position, and
a valve puller dimensioned to fit into an inversion of the filter cartridge, wherein the valve puller has a hollow ring and an actuation means extending away from the hollow ring in axial direction, wherein the actuation means includes a receiving hole delimited by a gripping edge, and wherein the actuation means is configured to receive an actuation section of the valve.
14 . The water filter device of claim 13 , wherein the actuation means is formed in the shape of a truncated cone and includes a ring strip secured on the pointed end to act as the gripping edge.
15 . The water filter device of claim 14 , wherein a lateral surface of the truncated cone is solid.
16 . The water filter device of claim 14 , wherein a lateral surface of the truncated cone includes a plurality of strips separated by a plurality of windows, wherein the plurality of strips extend from the hollow ring to a free end.
17 . The water filter device of claim 16 , wherein the plurality of strips include humps formed in a center thereof on an outer surface thereof.
18 . The water filter device of claim 16 , wherein the plurality of strips include notches formed in a center thereof.
19 . The water filter device of claim 13 , wherein the actuation means further includes a plurality of spacing ribs formed on an outer circumference of the hollow ring, so that at least one gap is created between the hollow ring and an inner side of the inversion of the filter cartridge.
20 . The water filter device of claim 13 , wherein the actuation means further includes a plurality of positioning ribs arranged on the hollow ring and extending away from the hollow ring.