DRAIN DEVICE

Abstract

A drainage device is provided that includes an inlet opening connectable to a sanitary appliance, a drainage opening connectable to a sewage pipe, and a closure section arranged between the inlet opening and the drainage opening. Passage of gas between the inlet opening and the drainage opening can be prevented by filling the closure section with a liquid. The drainage device further includes an actuating means and a vent opening. In a rest position, the actuating means closes the vent opening. In an activation position, the actuating means releases the vent opening. In the activation position, a gas passage between the drainage opening and the vent opening is allowed. Other aspects are described and claimed.

Claims

1. A drainage device comprising: an inlet opening, which is connectable to a sanitary appliance; a drainage opening, which is connectable to a sewage pipe; a closure section, which is arranged between the inlet opening and the drainage opening, wherein the passage of gas between the inlet opening and the drainage opening can be prevented by filling the closure section with a liquid; and an actuating means and a vent opening; wherein, in a rest position, the actuating means closes the vent opening and, in an activation position, the actuating means releases the vent opening, and wherein, in the activation position, a gas passage between the drainage opening and the vent opening is allowed.

2. The drainage device according to claim 1, wherein the actuating means is configured in the activation position by the liquid flowing through the drainage device.

3. The drainage device according to claim 1, wherein the actuating means comprises an actuating lever which can be pivoted about a pivot axis.

4. The drainage device according to claim 1, wherein the actuating means comprises an angularly arranged inflow section.

5. The drainage device according to claim 1, further comprising a connecting tube arranged between the inlet opening and the drainage opening, wherein the connecting tube comprises the closure section.

6. The drainage device according to claim 5, wherein the connecting tube comprises a first drop section, a second drop section and a riser section, the riser section being arranged between the first drop section and the second drop section.

7. The drainage device according to claim 6, wherein the closure section is arranged in the area of the first drop section and the riser section, and wherein the actuating means is arranged in the area of the second drop section.

8. The drainage device according to claim 6, wherein the closure section is arranged in the area of a curved connecting section between the first drop section and the riser section.

9. The drainage device according to claim 1, further comprising a fastening device for fastening the drainage device to a further component.

10. An arrangement of a drainage device according to claim 1 with a mounting device of a flush-mounted box.

11. The arrangement according to claim 10, further comprising a fastening device connected to a holding area of the mounting device.

12. The arrangement according to claim 10, further comprising a washbasin.

13. The arrangement according to claim 10, wherein the flush-mounted box comprises a drain connected to the inlet opening of the drainage device.

14. The drainage device according to claim 1, which comprises a trap.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG. 1 shows a lateral sectional view of a drainage device according to an exemplary embodiment of the present invention;

[0033] FIG. 2 shows a further lateral sectional view of a drainage device according to the exemplary embodiment of the present invention; and

[0034] FIG. 3 shows a sectional view of an arrangement of the drainage device according to the exemplary embodiment on a flush-mounted box.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0035] FIGS. 1 and 2 show two lateral sectional views of a drainage device according to an exemplary embodiment of the present invention, the corresponding sectional planes each being arranged approximately orthogonally to one another.

[0036] The drainage device comprises an inlet opening 1 and a drainage opening 2. The inlet opening 1 is designed to be connected to a sanitary appliance, for example a washbasin. The drainage opening 2 is designed to be connected to a sewage pipe or, more generally, to a sewage system.

[0037] A connecting tube 12 is arranged between the inlet opening 1 and the drainage opening 2, which allows liquid to pass from the inlet opening 1 to the drainage opening 2. The drainage device shown in this exemplary embodiment is designed as a P-trap. Accordingly, the connecting tube 12 comprises a first drop section 13, a second drop section 14 and a riser section 15, which is arranged between the drop sections 13, 14. The individual sections extend substantially parallel to one another. The sections are arranged serially, i.e. consecutively, and are each connected to one another via curved connecting sections. In particular, the connecting tube 12 in this exemplary embodiment is of a substantially S-shaped design.

[0038] In this exemplary embodiment, the connecting tube 12 comprises an inlet section 18 and a drainage section 19, which are arranged substantially orthogonally to one another. The inlet section 18 is arranged in the area of the inlet opening 1, while the drainage section 19 is arranged in the area of the drainage opening 2. In this exemplary embodiment, the closure section 3, the drop sections 13, 14 and the riser section 15 are arranged between the inlet section 18 and the drainage section 19.

[0039] In the intended use of the trap shown in FIGS. 1 and 2, gas is to be prevented from passing from the drain pipe, which is connected to the drainage opening 2, into the ambient air of the sanitary appliance, which is connected to the inlet opening 1. In particular, this serves the purpose of preventing the release of unpleasant odors from the sewage system. Therefore, the drainage device comprises the closure section 3, which in this exemplary embodiment is arranged at the transition from the first drop section 13 to the riser section 15. The closure section 3 can be filled with a liquid, in particular with liquid draining from the sanitary appliance, and once the filling level of the closure section 3 is sufficient, the liquid prevents a gas passage from the drainage opening 2 to the inlet opening 1.

[0040] Due to the positioning of the inlet opening 1, the head and thus the flow pressure of the incoming liquid is low. In order to enable immediate and continuous drainage of the liquid from the sanitary appliance, the inventive drainage device of this exemplary embodiment comprises an actuating device 4 designed as an actuating lever 7. The actuating lever 7 is pivotally mounted about a pivot axis 6 and can assume at least a rest position and an activation position.

[0041] The actuating lever 7 assumes the rest position when no liquid flows through the drainage device. In the rest position, a closure element 16 of the actuating lever 7 closes a vent opening 5 in the housing 17 of the drainage device. The vent opening 5 provides a gas-permeable connection between the interior of the housing 17, i.e. the connecting tube 12, and the environment of the drainage device.

[0042] The actuating lever 7 assumes the activation position when liquid flows through the drainage device. Due to the pivoting movement of the actuating lever 7, the closure element 16 releases the vent opening 5 and gas is allowed to pass between the drainage opening 2 and the vent opening 5/the ambient air of the drainage device. This results in pressure equalization between the interior of the drainage device and the ambient air, and continuous drainage of liquid is ensured.

[0043] The vent opening 5 acts, among other things, as a pressure equalizer between the connecting tube 12 and the ambient air.

[0044] In order to improve the actuation of the actuating lever 7, it has an angularly arranged inflow section 8 in this exemplary embodiment. The inflow section 8 has a widened cross-section and is arranged at one end of the actuating lever.

[0045] As soon as liquid stops flowing through the drainage device, for example, after the supply of liquid to the sanitary appliance is stopped, the actuating lever moves back to the rest position in the absence of flow pressure from the liquid, so that a gas passage through the vent opening 5 and thus the formation of unpleasant odors in the ambient air is prevented. When the liquid flow is restored, the actuating lever 7 is returned to the activation position as described above.

[0046] The drainage device shown in FIGS. 1 and 2 also has a fastening device 9. The fastening device 9 is arranged on the housing 17 of the drainage device and serves to fasten the drainage device to a further component, for example to a mounting device. In particular, the fastening device 9 according to this exemplary embodiment serves to fasten the drainage device to a flush-mounted box.

[0047] FIG. 3 shows a sectional view of an arrangement of the drainage device according to the exemplary embodiment on a flush-mounted box. The drainage device with the inlet opening 1, the drainage opening 2 and the connecting tube 12 arranged between the inlet opening 1 and the drainage opening 2 is attached to a wall of a flush-mounted box 10 via the fastening device 9. The wall has a holding area 11, which can be inserted into a recess of the fastening device 9. This facilitates the mounting of the drainage device according to the invention.

[0048] To simplify the illustration, some elements shown in FIGS. 1 and 2 are not shown in FIG. 3.

[0049] While the exemplary embodiment described herein shows a P-trap, the present invention is also applicable to other trap designs, for example, bottle traps, cup traps, or the like.

LIST OF REFERENCE SIGNS

[0050] 1 Inlet opening [0051] 2 Drainage opening [0052] 3 Closure section [0053] 4 Actuating means [0054] 5 Vent opening [0055] 6 Pivot axis [0056] 7 Actuating lever [0057] 8 Inflow section [0058] 9 Fastening device [0059] 10 Flush-mounted box [0060] 11 Holding area [0061] 12 Connecting tube [0062] 13 First drop section [0063] 14 Second drop section [0064] 15 Riser section [0065] 16 Closure element [0066] 17 Housing [0067] 18 Inlet section [0068] 19 Drainage section