Cistern Drainage Fitting with Integrated Throttle
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Solution Overview
Problem
Existing drain fitting arrangements for cisterns with throttle elements face issues such as increased external dimensions, difficult access, and lack of fine adjustment, leading to installation challenges and potential errors.
Innovation Solution
A waste fitting arrangement with a valve body, sealing element, and adjustable throttle element integrated into a compact holding unit, allowing for easy insertion and adjustment of the throttle element within the drain opening, maintaining a compact design and ensuring constant water flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the throttling element is arranged inside the cistern, then the throttling function is achieved, but the external dimensions of the drain assembly are increased
Solution Approach 1:
The throttling element is nested within the mounting unit's receptacle, which is located inside the drain opening. This allows the throttling element to be housed within the existing drain assembly structure without increasing external dimensions, effectively placing one component inside another to achieve space efficiency.
2Adaptability or versatility
If the throttling element is arranged in the drain pipe, then the throttling function is achieved, but the access for installation and maintenance becomes very difficult
Solution Approach 1:
The throttling element is extracted from the deep interior of the drain pipe and repositioned to the mounting unit at the drain opening. This extraction allows the throttling element to remain accessible for installation and maintenance while still performing its throttling function, as it is now located at a readily accessible position rather than deep within the pipe.
Solution Approach 2:
The mounting unit with the receptacle is pre-positioned at the drain opening, allowing the throttling element to be easily inserted and installed without requiring access to the deep interior of the drain pipe. This preliminary positioning of the mounting structure facilitates easy installation and maintenance operations.
3Adaptability or versatility
If the throttling element is separately mounted in the pipe, then the throttling function is achieved, but the mounting process becomes complex and error-prone
Solution Approach 1:
The mounting unit combines the receptacle for the throttling element with the drain opening structure into a single integrated component. This merging eliminates the need for separate mounting operations for the throttling element, reducing the number of steps and potential errors in the installation process while maintaining the throttling function.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A flushing assembly (1) for a cistern comprises a valve body (2) with a sealing element (4) cooperating with a valve seat (3), wherein the valve body (2) with the sealing element (4) is movable from the valve seat (3) along a central axis (M) from a rest position to a flushing position and from the flushing position to the rest position, a valve housing (5) in which the valve body (2) is movably mounted, and a mounting unit (6) with a through-hole (7), wherein said valve seat (3) extends around the draining hole (7) and wherein, viewed in the installed position, the mounting unit (6) has a bearing section (8) above the valve seat (3) for mounting the valve housing (5). The flushing assembly (1) further comprises an adjustable throttle element (10) for adjustable throttle control of the flushing water flowing out through the draining hole (7).The mounting unit (6) includes a receptacle (9) for the throttling element (10) in the drain opening (7), wherein the receptacle (9) is arranged below the valve seat (3) when viewed in the installation position and wherein the throttling element can be inserted into the receptacle (9).