Shower Drain Bell Element Multi-Chamber Odor Trap
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Solution Overview
Problem
Existing water drainage devices for flat structures, such as shower floors, require significant installation height and distance from the wall due to their design, which does not meet the requirements for a compact, flat construction and compliance with standards like DIN EN 1253/274.
Innovation Solution
A water drainage device with a bell element having an elongated apex and side walls forming a barrier wall, which surrounds a middle chamber except for the drain pipe passage, allowing the bell element to be pushed out and the drain pipe to be slipped over, with a recess for sealing and a groove for a sealing element, enabling a flat and efficient drainage system. The device is integrated into a base plate with a groove-like recess for the drain pipe and features a modular design for compatibility with standard and super-flat drain systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional odor trap designs are used, then drainage function is achieved, but installation height becomes considerable and distance from wall increases
Solution Approach 1:
The odor trap housing is divided into multiple chambers (first chamber, second chamber, third chamber) separated by partition walls. This segmentation allows water to flow through a longer path within a compact vertical space, maintaining drainage capacity while reducing overall installation height.
Solution Approach 2:
The bell element is inserted into the odor trap housing, with the bell element itself containing internal structures. The drain connection is nested within the bell element, and the entire assembly fits within the multi-chamber housing, creating a compact nested structure that reduces installation height while preserving drainage function.
2Ease of operation
If conventional odor trap designs are used, then drainage function is achieved, but distance from wall becomes considerable
Solution Approach 1:
The odor trap uses a linear/rectangular configuration instead of a circular layout. The multi-chamber design extends in the horizontal plane with partition walls creating a stepped arrangement, allowing the drainage path to develop horizontally rather than requiring radial space from a central point, thus reducing distance from wall.
3Reliability
If bell element is designed with recess for sealing, then compliance with standards is achieved, but device complexity increases
Solution Approach 1:
The sealing function is merged into the bell element itself through the recess and groove features. The sealing element is integrated into the bell element structure rather than being a separate component, and the recess is formed as part of the bell element molding process, reducing overall device complexity while ensuring compliance with sealing standards.
Data Source
AI summary
The invention relates to a water drainage device (1) for a sanitary installation, such as a floor-level shower area, comprising: - a channel cover (6), - a channel-shaped drainage area (8) with a water outlet opening (5) arranged in its center and a water inlet opening (4) converging towards the water outlet opening (5), - a transition area (9) arranged within the channel-shaped drainage area (8) with a trap system (11) and at least one outlet nozzle (14) for water discharge, wherein the trap system comprises a housing (60) with an inner chamber (34) and at least one outer chamber (32) as well as a bell element (39) immersed in the housing (60), wherein the outer chamber (32) is at least partially bounded by a housing wall (61). In order to enable a particularly flat and wall-close design, the inner chamber (34) is enclosed by a circumferential,first barrier wall (36) is formed and completely enclosed by the outer chamber (32), except for the passage area (57) to the drain nozzle (14), wherein between the inner chamber (34) and the outer chamber (32) - with the bell element inserted - a middle chamber (33) is arranged, which is completely enclosed by a second barrier wall (35), except in the passage area (57) to the drain nozzle (14), so that the chambers (34, 33, 32) are formed by barrier walls (36, 35) arranged in a ring around each other and a housing wall (61). The outer chamber (32) is separated from the middle chamber (33) by the second baffle (35), and the middle chamber (33) is separated from the inner chamber (34) by the first baffle (36). The flow direction of the wastewater is from the outer chamber (32) to the middle chamber (33), from there to the inner chamber (34), and from there to the outlet nozzle (14).