Improved siphon connector
The siphon connector with a cylindrical body and tubular extension addresses noise issues in wastewater drainage by managing high water inflows, ensuring quiet operation in confined spaces with household appliances.
Patent Information
- Application Number
- DE202025107309
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Priority Date
- 2024-12-11
- Filing Date
- 2025-11-26
- Publication Date
- 2026-01-29
- Estimated Expiration
- 2035-11-30
AI Technical Summary
Existing siphon connectors for wastewater drainage in washbasins and sinks suffer from noise and disruption due to sudden shifts of water and air caused by high water inflow from household appliances, which exceed the siphon's capacity.
A siphon connector with a cylindrical body featuring a flange and bushing for engaging drainage systems, incorporating a tubular extension with a flattened elliptical cross-section and a steep incline, designed to manage water flow efficiently and reduce noise.
The solution effectively reduces drainage noise and ensures orderly water flow, making it suitable for confined spaces with household appliances, enhancing user comfort by minimizing disruptive operating sounds.
Smart Images
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Abstract
Description
TECHNICAL AREA
[0001] The present invention relates to the sector of components for the sanitary industry and in particular to an improved siphon device for the wastewater drainage of washbasins or sinks. STATE OF THE ART
[0002] In the plumbing industry, siphons for the wastewater drainage of washbasins or sinks are very common. These generally consist of a molded body forming a U-shaped bend, which is inserted between the drain opening of the washbasin and the pipe leading to the sewer system. This design allows water to back up at the bottom of the U-shaped bend, thus creating a hydraulic seal that prevents the backflow of air and gases from the sewer system to the outside.
[0003] This type of product is usually connected to the two pipes for the water drainage to the sewer line using threaded connections.
[0004] It has long been common practice among manufacturers of siphons and plumbing fittings to provide coupling systems for the drains of various nearby household appliances that generate excess water, such as washing machines, dishwashers, and air conditioners. These coupling systems consist of an L-shaped tap with a truncated cone-shaped structure on one end, featuring projecting elements for a tight seal into the drain pipe carrying the liquids from the appliance. The other end has a cylindrical element with a protruding toroidal ring near its free end for engagement with a threaded ring. This threaded ring, in turn, engages with a mating threaded end of the siphon.
[0005] The special composition of the components results in a water inflow from household appliances with a force that is often greater than the effective capacity of the siphon, causing sudden shifts of water and air along the drain line, which is the reason for the well-known and unpleasant noise when draining water from one container to another.
[0006] The aim of the present utility model is therefore to provide a siphon connection piece for sinks or basins that is able to facilitate the water supply from the drains of household appliances, so that the peristaltic drainage effect with the corresponding emptying noise is essentially eliminated.
[0007] The objective is achieved by a siphon connector consisting of a body with a cylindrical profile, provided at both ends with means for engaging the elements forming the drainage system of the washbasin or sink, wherein the means consist of a flange with a larger diameter than that of the body with a cylindrical profile, arranged at one end of the main cylindrical body, and a bushing with a larger diameter than that of the main cylindrical body, the outer surface of which has a thread, arranged at the other end of the body with a cylindrical profile, characterized in that the body with a cylindrical profile further comprises an outer extension consisting of a tubular body with a flattened elliptical cross-section, in which an opening is provided along the cylindrical profile.wherein at the free end of the tubular body with a flattened cross-section, the upper surface forms an expansion with a strong inclination to form an end with a circular profile.
[0008] Further preferred features are set out in the dependent claims.
[0009] Further features and advantages of the invention will certainly become clearer from the following detailed description of a preferred version, which serves purely as an example and is not limiting and is illustrated in the accompanying drawings, wherein: Fig. 1 a partially separated perspective view of the standard siphon connector; Fig. 2 a partial cross-sectional view of the connector in Fig. 1 is; Fig. 3 a lateral cross-sectional view to illustrate the functioning of the invention according to the model; Fig. 4 a view of the connector in Fig. 1 is in working position.
[0010] As can be seen in the figures, the siphon connector according to the invention consists of a body with a cylindrical profile 1, which is provided at both ends with means for engaging the elements that form the drainage system of the washbasin or sink, namely an upper drain pipe and a lower siphon. In particular, a flange 2 with a larger diameter than that of the main cylindrical body is provided at one end of the connector. This flange is suitable for serving as a stop for a ring 3 with an internal thread 3 for engaging a mating thread (not shown) mounted on the drain pipe leading to the wastewater line. At the other end, a bushing 4 with a larger diameter than that of the connector 1 is provided, the outer surface of which has a thread. Two seals 5 are provided in the area of the interface between the drain pipe and the connector 1, and between the connector 1 and the siphon.
[0011] A conduit with an elliptical cross-section 6 extends laterally from the outer surface of the connector 1, perpendicular to the axis of the connector. The free end of this conduit has a circular profile 7, with the conduit having a steep incline between the circular and elliptical profiles. The end with the circular profile 7 has a threaded outer surface.
[0012] A ring 8 tightly connects an L-shaped tap 9 for insertion into a drain hose of a household appliance.
[0013] During installation, the operator only needs to ensure that connector 1 and L-shaped tap 9 are correctly inserted and that the gaskets 5 provided for sealing are added, if necessary. Once connector 1 is installed, it is sufficient to connect the appliance's drain hose to the L-shaped tap 9 according to standard procedures.
[0014] In operation, the drainage system functions like a conventional drainage system until the appliance to which the system is connected pumps out the water. At this point, the liquid flows through the hose and reaches the tap, where it encounters the wall with a strong asymmetrical slope, which forms a kind of reservoir and allows the water to drain in an orderly manner into the siphon.
[0015] In this way, the set goal was achieved, namely a siphon connector for the water drain that reduces drainage problems and the noise perceptible in the surroundings while wastewater from a household appliance is emptied into the siphon.
[0016] As can be understood, this solution proves particularly useful in new generation apartments where household appliances are housed in a confined space, in areas typically used for daily life. This solution therefore allows the user to enjoy the normal operation of the appliance while also going about their normal life in the apartment without having to listen to disruptive operating noises.
[0017] It is understood that the protection of the utility model described above is not to be considered as limiting to the particular embodiment shown, but extends to any other technically equivalent design variant.
Claims
[1] A siphon connector consisting of a body with a cylindrical profile, provided at both ends with means for engaging the elements forming the drainage system of the washbasin or sink, the means comprising a flange with a larger diameter than that of the body with a cylindrical profile, arranged at one end of the main cylindrical body, and a bushing with a larger diameter than that of the main cylindrical body, the outer surface of which has a thread, arranged at the other end of the body with a cylindrical profile, characterized by, that the body with cylindrical profile further comprises an outer extension consisting of a tubular body with a flattened elliptical cross-section, in which an opening is provided along the cylindrical profile, wherein at the free end of the tubular body with a flattened cross-section the upper surface provides an expansion with a strong inclination to form an end with a circular profile. [2] Siphon connector according to claim 1 characterized by that the outer extension is arranged perpendicular to the axis of the connecting piece. [3] Siphon connector according to claim 1 or 2, characterized by that the end with a circular profile has an outer surface with a thread. [4] Siphon connector according to any one of the preceding claims, characterized by that two seals are provided at its vertical ends. [5] Siphon connector according to any one of the preceding claims, characterized by , that the connector is equipped with at least either a ring with internal thread or an L-shaped tap for connection to a drain hose.