Abstract
The invention relates to a sanitary shower (1) comprising at least a housing (2), at least one fluid inlet (3) for a fluid, and at least one jet-forming element (4) with at least one fluid channel (19), the at least one fluid channel (19) comprising at least one duckbill valve (6) having an elastic valve casing (7) that runs in a flow direction (8) of the fluid from a valve base (9) to a slotted valve outlet (10). The valve casing (7), at least in the region of the slotted valve outlet (10), has an outwardly oriented thicker portion (12).
Claims
1. A sanitary shower (1), at least comprising: a housing (2), at least one fluid inlet (3) for a fluid, and at least one jet-forming element (4) having at least one fluid duct (19), wherein the at least one fluid duct (19) comprises at least one duckbill valve (6) having an elastic valve jacket (7), which extends in a direction of flow (8) of the fluid from a valve base (9) to a slit-shaped valve outlet (10) and wherein the valve jacket (7) comprises a thickening (12) directed outwards at least in the area of the slit-shaped valve outlet (10).
2. The sanitary shower (1) according to claim 1, wherein the valve jacket (7) has a first wall thickness (13) outside the thickening (12) and a second wall thickness (14) in the area of the thickening (12), which is at least 10% greater than the first wall thickness (13).
3. The sanitary shower (1) according to claim 1, wherein the thickening (12) is formed at least partially convex.
4. The sanitary shower (1) according to claim 1, wherein the thickening (12) is formed at least partially concave.
5. The sanitary shower (1) according to claim 1, wherein the thickening (12) is formed at least partially in the manner of at least one web (15, 16).
6. The sanitary shower (1) according to claim 5, wherein the at least one web (15, 16) extends from the valve base (9) to the slit-shaped valve outlet (10).
7. The sanitary shower (1) according to claim 5, wherein the at least one web (15, 16) extends from an outer surface (17) of the valve jacket (7) to an inner wall (18) of the at least one fluid duct (19) of the nozzle (5).
8. The sanitary shower (1) according to claim 5, wherein the at least one web (15, 16) has a web width (20) of 0.1 mm to 0.5 mm.
9. The sanitary shower (1) according to claim 5, wherein the at least one web (15,16) extends orthogonally to the slit-shaped valve outlet (10).
10. The sanitary shower (1) according to claim 1, wherein the thickening (12) can be at least partially elastically deformed when the slit-shaped valve outlet (10) is opened.
Description
[0027] The same reference signs are used for the same components in the Figures. In the Figures, shown in an exemplary and schematic manner:
[0028] FIG. 1 shows a sanitary shower;
[0029] FIG. 2 shows a first sectional view of a first embodiment variant of a duckbill valve of the sanitary shower;
[0030] FIG. 3 shows an enlarged detail view of the first embodiment variant of the duckbill valve.
[0031] FIG. 4 shows a second sectional view of the first embodiment variant of the duckbill valve;
[0032] FIG. 5 shows a sectional view of a second embodiment variant of the duckbill valve of the sanitary shower;
[0033] FIG. 6 shows a sectional view of a third embodiment variant of the duckbill valve of the sanitary shower;
[0034] FIG. 7 shows a sectional view in perspective of a fourth embodiment variant of the duckbill valve of the sanitary shower; and
[0035] FIG. 8 shows a further sectional view of a fourth embodiment variant of the duckbill valve of the sanitary shower.
[0036] FIG. 1 shows a sanitary shower 1 from a lateral perspective. There the sanitary shower 1 is designed in the form of a hand-held shower and has a housing 2 having a fluid inlet 3. The fluid inlet 3 is used to connect the sanitary shower 1 to a supply hose not shown here.
[0037] A fluid can be supplied to the sanitary faucet 1 through the supply hose and enters the housing 2 of the sanitary shower 1 via the fluid inlet 3. Within the housing 2, the fluid can be supplied to a jet-forming element 4 of the sanitary shower 1 via ducts and/or valves not shown here. The jet-forming element 4 has a plurality of nozzles 5 through which, when the sanitary shower 1 is used, the fluid can be delivered to a surrounding area 21 in a desired spray pattern, for instance as rain jets.
[0038] FIG. 2 shows a sectional view of a first embodiment variant of a duckbill valve of a nozzle 5 of the jet-forming element 4 along the sectional line II-II shown in FIG. 1. The nozzle 5 extends vertically downwards from a circular jet-forming element mat 22. Further, the nozzle 5 has a fluid duct 19 extending through the jet-forming element mat 22 to an outlet opening 23. When the sanitary shower 1 is used, the fluid entering the housing 2 of the sanitary shower 1 via the fluid inlet 3 shown in FIG. 1 flows in a direction of flow 8 through the fluid duct 19 and exits from the nozzle 5 to the surrounding area 21 via the outlet opening 23. The duckbill valve 6 is arranged in the fluid duct 19, upstream of the outlet opening 23 in the direction of flow 8. The duckbill valve 6 has an elastic valve jacket 7 extending from a valve base 9 to a slit-shaped valve outlet 10 in the direction of flow 8. The valve jacket 7 is attached to the valve base 9 at an inner wall 18 of the fluid duct 19 and has a valve base diameter 26, which here is (approximately) 1.6 mm. The valve base diameter 26 matches a duct diameter 27 of the fluid duct 19 in the area of the valve base 9. The valve jacket 7 therefore has a circular inner diameter 24 in the area of the valve base 9. Starting from the valve base 9, the valve jacket 7 or the inner diameter 24 of the valve jacket 7 tapers in a funnel shape in the direction of flow 8 up to the slit-shaped valve outlet 10 at a bill tip 25 of the duckbill valve 6 having a taper angle 32, which here is (approximately) 45°. The inner diameter 24 of the valve jacket 7 therefore changes from a circular shape to an oval, (essentially) rectangular or linear shape, starting from the valve base 9 and ending at the slit-shaped valve outlet 10.
[0039] The duckbill valve 6 has a valve length 11 from the valve base 9 to the bill tip 25, which is (approximately) 2 mm in this case. When the sanitary faucet 1 is used, the fluid flowing through the fluid duct 19 in the direction of flow 8 into the duckbill valve 6 elastically deforms the valve jacket 7 as a result of the fluid pressure, such that the slit-shaped valve outlet 10 is forced apart and thus opens. After use of the sanitary faucet 1, the slit-shaped valve outlet 10 closes automatically such that the fluid from the outlet opening 23 can be prevented from dripping.
[0040] FIG. 3 shows the bill tip 25 of the first embodiment variant of the duckbill valve 6 in the area III shown in FIG. 2. The valve jacket 7 has a thickening directed outwards 12 in the area of the slit-shaped valve outlet 10, i.e. in the area of the bill tip 25. Outside the thickening 12, the valve jacket 7 has a first wall thickness 13 and, in the area of the thickening 12, a second wall thickness 14 that is greater than the first wall thickness 13. The first wall thickness 13 is (approximately) 0.2 mm. The first wall thickness 13 and the second wall thickness 14 extend perpendicular to an inner surface 29 of the valve jacket 7. Starting from an outer surface 17 of the valve jacket 7, the thickening 12 rises to an elevation level 28. The thickening 12 also has a thickening length 30 in the direction of flow 8, which here is (approximately) 0.45 mm. Furthermore, the thickening 12 (perpendicular to the direction of flow 8 and/or perpendicular to the slit-shaped valve outlet 10) results in a bill thickness 31 of the bill tip 25 of the duckbill valve 6, which here is (approximately) 0.8 mm.
[0041] FIG. 4 shows the nozzle 5 of the jet-forming element 4 along the line of section IV-IV shown in FIG. 2. In particular, this is a top view of the valve jacket 7 of the duckbill valve 6 in the fluid duct 19. In particular, the bill tip 25 of the duckbill valve 6 with the thickening 12 and the slit-shaped valve outlet 10 can be seen there. The slit-shaped valve outlet 10 has an outlet width 33, which here is (approximately) 1.3 mm. The thickening 12 is straight in the first embodiment variant of the duckbill valve 6. This means that the thickening 12 parallel to the slit-shaped valve outlet 10 results in a constant bill thickness 31.
[0042] FIG. 5 shows a second embodiment variant of a duckbill valve 6 from the same perspective as the first embodiment variant of the duckbill valve 6 shown in FIG. 4. In contrast to the first embodiment variant, the thickening 12 has a convex shape. In particular, this means that the thickening 12 parallel to the slit-shaped valve outlet 10 is not straight, but convex (at least) in the area of the bill tip 25. Therefore, the second wall thickness 14 is greatest at the center of the slit-shaped valve outlet 10 and decreases outwards in parallel to the slit-shaped valve outlet 10. In all other respects, the second embodiment variant of the duckbill valve 6 is configured identically to the first embodiment variant.
[0043] FIG. 6 shows a third embodiment variant of a duckbill valve 6 from the same perspective as the first embodiment variant of the duckbill valve 6 shown in FIG. 4. In contrast to the first embodiment variant, the thickening 12 has a concave shape. In particular, this means that the thickening 12 in parallel to the slit-shaped valve outlet 10 is not straight but concave (at least) in the area of the bill tip 25. Therefore, the second wall thickness 14 is smallest at the center of the slit-shaped valve outlet 10 and increases outwards in parallel to the slit-shaped valve outlet 10. In all other respects, the third embodiment variant of the duckbill valve 6 is configured identically to the first embodiment variant.
[0044] FIG. 7 shows a perspective sectional view of a fourth embodiment variant of a duckbill valve 6 along a sectional line IV-IV shown in FIG. 2 through a nozzle 5 of a jet-forming element 4. The fourth embodiment variant of the duckbill valve 6 differs from the first embodiment variant in that the thickening 12 comprises a first web 15 and a second web 16 extending on either side of the valve outlet 10 and orthogonal to the slit-shaped valve outlet 10.
[0045] FIG. 8 shows a fourth embodiment variant of a duckbill valve 6 from the same perspective as the first embodiment variant of the duckbill valve 6 shown in FIG. 4.
[0046] The first web 15 and the second web 16 extend perpendicular to the plane of the drawing from the bill tip 25 to the base 9 of the valve, and in parallel to the plane of the drawing from the outer surface 17 of the valve jacket 7 to the inner wall 18 of the fluid duct 19. Furthermore, the first web 15 and the second web 16 have a web width 20, which here is (approximately) 0.2 mm.
[0047] Based on this invention, a fluid dripping from a sanitary shower can be reduced or completely prevented.
LIST OF REFERENCE NUMERALS
[0048] 1 Sanitary shower [0049] 2 Housing [0050] 3 Fluid inlet [0051] 4 Jet-forming element [0052] 5 Nozzle [0053] 6 Duckbill valve [0054] 7 Valve jacket [0055] 8 Direction of flow [0056] 9 Valve base [0057] 10 Valve outlet [0058] 11 Valve length [0059] 12 Thickening [0060] 13 First wall thickness [0061] 14 Second wall thickness [0062] 15 First web [0063] 16 Second web [0064] 17 Outer surface [0065] 18 Interior wall [0066] 19 Fluid duct [0067] 20 Bar width [0068] 21 Environment [0069] 22 Jet-forming element mat [0070] 23 Outlet opening [0071] 24 Inner diameter [0072] 25 Bill tip [0073] 26 Valve base diameter [0074] 27 Duct diameter [0075] 28 Elevation [0076] 29 Inner surface [0077] 30 Thickening length [0078] 31 Bill thickness [0079] 32 Taper angle [0080] 33 Outlet width
