SLUDGE RETAINING DEVICE FOR A DRAIN OF A SANITARY BASIN

Abstract

The invention relates to a sludge retaining device for a drain of a sanitary basin, in particular of a sink or the like, comprising a sieve surface, which is formed extending from a higher to a lower surface region, and a handle device, which is arranged in the region of the lower surface region on the sieve surface, wherein the handle device comprises a flow disruption device, in particular break-away edge, for the flow of a liquid, which flows towards the lower surface region, such that the flow of the liquid is at least partially broken up by the recess.

Claims

1. A sludge retaining device for a drain of a sanitary basin, in particular of a sink or the like, comprising a sieve surface, which extends from a higher to a lower surface region, and a handle device, which is arranged in the region of the lower surface region on the sieve surface, characterized in that the handle device comprises a flow disruption device, in particular a recess, for the flow of a liquid, which flows in the direction of the lower surface region, such that the flow of the liquid in the lower region is at least partially broken up by the flow disruption device.

2. The sludge retaining device according to claim 1, characterized in that the sludge retaining device is formed in one part or in multiple parts, in particular in four parts.

3. The sludge retaining device according to claim 1, characterized in that the handle device is detachably arranged on the sieve surface, in particular by means of a snap-on connection.

4. The sludge retaining device according to claim 1, characterized in that the handle device can be attached to an opening of the sieve surface, in particular wherein the opening has a clover leaf shape.

5. The sludge retaining device according to claim 1, characterized in that the handle device is in one part or in multiple parts, in particular in two parts, comprising at least a base body and a cap.

6. The sludge retaining device according to claim 5, characterized in that the handle device can be attached to the sieve surface on different sides of the sieve surface.

7. The sludge retaining device according to claim 4, characterized in that the handle device and the opening are designed to be interactive, in order to provide a rotation prevention device of the handle device in the opening, in particular wherein the opening has a clover leaf shape.

8. The sludge retaining device according to claim 5, characterized in that the flow disruption device, in particular the recess, is arranged on the base body.

9. The sludge retaining device according to claim 5, characterized in that the cap is fixed positively, materially and/or frictionally to the base body, in particular by means of pressing and/or adhesive bonding.

10. The sludge retaining device according to claim 5, characterized in that the cap protrudes at least partially beyond the flow disruption device, in particular, beyond the recess.

11. The sludge retaining device according to claim 5, characterized in that the base body comprises at least two radial projections circumferentially distributed.

12. The sludge retaining device according to claim 1, characterized in that the flow disruption device, in particular the recess, comprises a recess, in particular wherein the recess comprises at least one edge of at least 90 degrees.

13. The sludge retaining device according to claim 1, characterized in that the handle device comprises at least one handle outlet opening, in particular in the form of a slot.

14. The sludge retaining device according to claim 1, characterized in that the sieve surface comprises at least two sieve outlet openings for the passage of liquid, in particular in the form of slots.

15. The sludge retaining device according to claim 14, characterized in that the sieve outlet openings are arranged at least partially in the lower region, in particular being connected to the opening of the sieve surface.

16. The sludge retaining device according to claim 1, characterized in that the sieve surface comprises at least one web protruding from the sieve surface, in particular wherein the at least one web is arranged in the form of a ring around the opening of the sieve surface.

17. The sludge retaining device according to claim 15, characterized in that the web comprises web outlet openings, in particular wherein the web outlet openings and/or the handle outlet openings correspond to the sieve outlet openings of the sieve surface and/or are connected to them.

18. A drainage cup for use in a drain valve of a sanitary container, in particular of a sink, of a wash basin or the like, characterized in that a sludge retaining device according to claim 1 is arranged.

19. The sludge retaining device according to claim 16, characterized in that the web comprises web outlet openings, in particular wherein the web outlet openings and/or the handle outlet openings correspond to the sieve outlet openings of the sieve surface and/or are connected to them.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0035] FIG. 1 shows a basket strainer according to an embodiment of this invention in an exploded view.

[0036] FIG. 2 shows a basket strainer according to an embodiment of this invention in cross-section.

[0037] FIG. 3 shows a basket strainer according to an embodiment of this invention in an exploded view.

[0038] FIG. 4 shows a basket strainer according to an embodiment of this invention in cross-section.

[0039] FIG. 5 shows a basket strainer according to an embodiment of this invention in an exploded view.

[0040] FIG. 6 shows a basket strainer according to an embodiment of this invention in cross-section.

[0041] FIG. 7 shows a basket strainer according to an embodiment of this invention in an exploded view.

[0042] FIG. 8 shows a basket strainer according to an embodiment of this invention in cross-section.

[0043] FIG. 9 shows a basket strainer according to an embodiment of this invention in an exploded view.

[0044] FIG. 10 shows a basket strainer according to an embodiment of this invention in cross-section.

[0045] FIG. 11 shows a basket strainer according to an embodiment of this invention in an exploded view.

[0046] FIG. 12 shows a basket strainer according to an embodiment of this invention in an overview.

[0047] FIG. 13 shows a basket strainer according to an embodiment of this invention in cross-section.

[0048] FIG. 14 shows a basket strainer according to an embodiment of this invention in an exploded view.

[0049] FIG. 15 shows a basket strainer according to an embodiment of this invention in in cross-section.

[0050] FIGS. 1 and 2 show a basket strainer according to an embodiment of this invention in an exploded view and in cross-section.

[0051] FIGS. 1 and 2 show a basket strainer 1 in a drainage cup A (only FIG. 2). The basket strainer 1 is formed of multiple parts and comprises a sieve surface 4 and a handle, comprising a base body 3, which has a cap 2. The base body 3 is partially guided through an opening 4b of the sieve surface 4 and fixed by means of a snap ring 5 on the opposite side of the sieve surface 4.

[0052] In detail, the substantially cylindrical cap 2 has a rounded off projection in its upper region 2a. The central region 2b of the cap is curved inward in radial direction, such that the edge of the cap 2 in the lower region 2c has substantially the same external diameter as the upper region 2a.

[0053] The base body 3 is substantially embodied in the form of a ring. In the upper region 3a the ring has a protruding ledge beveled in the direction of the sieve surface. In the central region 3b the lateral surface, in cross-section, extends straight, in the lower region 3c the ring has a recess K to form the separating edge. The recess K is triangular in cross-section, wherein a 90-degree angle is formed between the central region 3b and the separating edge. Furthermore, the base body 3 has brackets 3e protruding vertically in the lower region 3c between which slots 3e′ are formed.

[0054] If liquid flows in direction F0, thus in the direction of the handle 2, 3, the flow is diverted less strongly upward via the recess K (Reference numeral F2) than would be the case without recess K, in particular in the case of rounding (Reference numeral F1). The same also applies for further FIGS. 3-10.

[0055] The sieve surface 4 is embodied in the form of a flat bowl with a circumferential flat, horizontal edge 4e on the outside, which merges into a bent, sloping surface 4d. Oblong slots 4a aligned in radial direction are arranged circumferentially evenly distributed in the bent surface 4d. An opening 4b is embodied in the lowest region in the middle of the sieve surface 4, said opening having a clover leaf cross-section.

[0056] The snap ring 5 has a cylindrical shape with circumferential surface 5a and has in cross-section on its inside a clover leaf cross-section corresponding to the opening 4b with indentations 5c. On its upper side, that is, on the surface oriented towards the sieve surface 4, the snap ring 5 has vertical projections 5b, the position of which corresponds to the indentations, more specifically, protrusions of the clover leaf shaped extension of the inside.

[0057] For the assembly of the basket strainer 1, the cap 2 is first placed on the base body 3 and thereby fixed through positively and/or materially locking, for example by means of adhesive bonding. Then, the lower portion of the base body 3 shown in FIGS. 1 and 2 is inserted through the opening 4b of the sieve surface 4, so that the brackets 3e penetrate through the opening 4b. Subsequently, the brackets 3e are fixed to the snap ring 5 on the opposite side. For example, this occurs by means of adhesive bonding the brackets 3e to the snap ring 5. The brackets 3e correspond to the protrusions 4c of the inside of the opening 4b, the slots 3e′ correspond to the projections between two protrusions 4c. In this way, a rotation prevention device of the handle 2, 3 can be provided with respect to the sieve surface 4. The vertical projections 5b of the snap ring 5 are used for correct spacing of the snap ring 5 and of the brackets 3e with respect to the opening 4b.

[0058] The cap 2 and/or base body 3 and/or sieve surface 4 and/or snap ring 5 can in each case be made at least partially, in particular completely, of metal and/or plastic. For example, the plastic can comprise polyamide and polypropylene and/or be glass fiber reinforced. The cap 2 and/or the sieve surface 4 can be coated, for example with paint or the like.

[0059] FIGS. 3 and 4 show a basket strainer according to an embodiment of this invention in an exploded view and in cross-section.

[0060] FIGS. 3 and 4 show substantially a basket strainer 1 according to FIGS. 1 and 2. In contrast to the basket strainer 1 according to FIGS. 1 and 2, the basket strainer 1 according to FIGS. 3 and 4 has a cap 2, which is radially curved inward in the central region 2b. In other words, it is formed in the shape of a segment of a circle in cross-section in the central region. In addition, the lower edge of the lower region 2c of the cap 2 is completely or partially bent radially inward. This, likewise, applies for all other embodiments. Similarly, radial projections 3d extend over the upper and central region 3a, 3b of the base body 3, said radial projections which have a triangular shape in cross-section, extending substantially in vertical direction into regions 3a, 3b and which are arranged in regular fashion on the radial outside of the base body 3.

[0061] By means of the mentioned projections 3d, the cap 2 can be attached through frictional locking on the base body 3. For easier assembly of the cap 2, the projections 3d can be rounded or flattened in the upper region.

[0062] FIGS. 5 and 6 show a basket strainer according to an embodiment of this invention in an exploded view and in cross-section.

[0063] FIGS. 5 and 6 show substantially a basket strainer 1 according to FIGS. 3 and 4. In contrast to the basket strainer 1 according to FIGS. 3 and 4, the basket strainer 1 according to FIGS. 5 and 6 has brackets 3e on the base body 3, which are the in the direction of the radial inside of the base body 3 chamfered to the rear. In other words, the brackets are V-shaped, wherein the respective edge 3f runs vertically and is arranged radially further inward.

[0064] Furthermore, compared to the sieve surface 4 according to FIGS. 1 to 4, the sieve surface 4 has differences. For one thing, a vertical circumferential web 4g extends around the opening 4b in the direction of the base body 3 upward, For another thing, the opening slot 4a is likewise connected to the opening 4b as well as to web outlet openings 4j extending in vertical direction. The vertical projections 5b of the snap ring 5 on its upper side are embodied such that they engage in the opening slot 4a of the sieve surface 4 in the region of the web 4g. Similarly, the V-shaped edge 3f of the brackets 3e engages in a projection 5d of the clover leaf-shaped embodiment of the Inner surface of the snap ring 5. Therewith a rotation prevention device can be provided.

[0065] FIGS. 7 and 8 show a basket strainer according to an embodiment of this invention in an exploded view and in cross-section.

[0066] FIGS. 7 and 8 show substantially a basket strainer 1 according to FIGS. 5 and 6. In contrast to the basket strainer 1 according to FIGS. 5 and 6, the basket strainer 1 according to FIGS. 7 and 8 has brackets 3e on the base body 3, which are bulged in the direction of the radial outside. In this respect, an inverse “clover leaf” shape arises. Slots (Reference numeral 3e′ in FIGS. 1 to 6) no longer exist between the brackets 3e.

[0067] Furthermore, the sieve surface 4 has at least one difference compared to the sieve surface 4 according to FIGS. 1 to 6. The opening slots 4a of the basket strainer 1 of FIGS. 7 and 8 extend to the opening 4b, however are not connected to it. Similarly, the opening slots 4a do not extend to the web 4g. The clover leaf shape of the snap ring 5 corresponds to the “clover leaf” shape of the brackets 3e of the base body 3 for its attachment on the sieve surface 4, so that in this way a positive connection—reference numeral 3e and 5c and reference numeral 3f and 5d engage—and thus a rotation prevention device can be provided.

[0068] FIGS. 9 and 10 show a basket strainer according to an embodiment of this invention in an exploded view and in cross-section.

[0069] FIGS. 9 and 10 show substantially a basket strainer 1 according to FIGS. 3 and 4. In contrast to the basket strainer 1 according to FIGS. 3 and 4, the basket strainer 1 according to FIGS. 9 and 10 has a single part handle 23, which on its upper side corresponds to the cap 2 of FIGS. 1 and 2, in particular the regions 23a, 23b, 23c correspond substantially to regions 2a, 2b, 2c of the cap 2 according to FIGS. 3 and 4. On the underside, the handle 23, as is also the case with the base body 3 according to FIGS. 3 and 4, has circumferential brackets 23e and slots 23e′. Furthermore, two projections 23f, 23g are arranged in circumferential direction around the base body 3—only interrupted by slots 23e′—on the brackets 23e spaced vertically apart from one another.

[0070] Furthermore, the sieve surface 4 has one difference compared to the sieve surface 4 according to FIGS. 1 to 8. Instead of the “clover leaf shape” of opening 4b, it is circular with rectangular teeth 4h protruding inward. Furthermore, the region 4f around the opening 4b is flattened, thus horizontal and parallel to edge 4e. The vertical projections 5b of the snap ring 5 are not present, instead there is a projection 5e protruding radially inward, which, after successful assembly of the handle 23 engages in the opening 4b in the region between the two circumferential projections of the brackets 23e. The recess K is embodied in cross-section in the form of a rounded recess, which extends partially upward in vertical direction.

[0071] FIGS. 11, 12 and 13 show a basket strainer according to an embodiment of this invention in an exploded view, in an overview and in cross-section.

[0072] FIGS. 11 to 13 substantially show a basket strainer 1 according to FIGS. 9 and 10. In contrast to basket strainer 1 according to FIGS. 9 and 10, the basket strainer 1 according to FIGS. 11 to 13 is in one piece. In particular, not only is the handle 23 in one part, but rather the handle 23 and sieve surface 4 are embodied together, more specifically, in one piece with one another. Thus, a snap ring 5 for fixation of the handle 23 is not required.

[0073] FIGS. 14 and 15 show a basket strainer according to an embodiment of this invention in an exploded view and in cross-section.

[0074] FIGS. 14 and 15 substantially show a basket strainer 1 according to FIGS. 11 to 13. In contrast to the basket strainer 1 according to FIGS. 11 to 13, the basket strainer 1 according to FIGS. 14 and 15 is in two parts with a handle 23 and a sieve surface 4. The handle 23 can be detachably fixed to the opening 4b of the sieve surface 4, in particular it can—as shown in FIGS. 14 and 15—be fixed by means of clipping, more specifically, a locking connection. The handle 23 and the sieve surface 4, more specifically, the opening 4b are embodied such that a snap ring 5 is not necessary for attaching the handle 23 on the sieve surface 4.

[0075] In summary, at least one embodiment of this invention has at least one of the following features and/or realized at least one of the following advantages: [0076] Simple, cost-effective manufacture. [0077] Splash guard. [0078] Simple, reliable assembly. [0079] Easy to clean. [0080] Attractive look and feel. [0081] Reliable removal of residual water.

[0082] Although this invention has been described with reference to preferred exemplary embodiments, it is not limited thereto and can be modified in a variety of ways.

LIST OF REFERENCES

[0083] 1 Basket strainer

[0084] 2 Cap

[0085] 2a Upper region

[0086] 2b Central region

[0087] 2c Lower region

[0088] 3 Base body

[0089] 3a Upper region

[0090] 3b Central region

[0091] 3c Lower region

[0092] 3d Projection lateral surface

[0093] 3e Vertical bracket

[0094] 3e′ Vertical slot

[0095] 3f Edge

[0096] 4 Sieve surface

[0097] 4a Radially extending slot

[0098] 4b Central opening

[0099] 4c Protrusion

[0100] 4d Sloping surface

[0101] 4e Outer edge

[0102] 4f Flattened region

[0103] 4g Web

[0104] 4h Tooth

[0105] 4j Opening web

[0106] 5 Snap ring

[0107] 5a Circumferential surface

[0108] 5b Vertical projection

[0109] 5c Indentation

[0110] 5e Projection inner circumferential surface

[0111] 23 Handle

[0112] 23a Upper region

[0113] 23b Central region

[0114] 23c Lower region

[0115] 23e Bracket

[0116] 23e′ Slot

[0117] A Drainage cup

[0118] F0, F1, F2 Flow direction of liquid

[0119] K Recess