Bidet Nozzle Flow Control for Continuously Variable Spray Patterns
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Solution Overview
Problem
Conventional water jet devices in sanitary and bath products, such as bidets, lack the capability to provide continuously variable and non-linear spray patterns, limiting their effectiveness in cleaning and user experience.
Innovation Solution
A nozzle design featuring a rotating member with an angled axle within the nozzle casing, where the relative fluid flow through two inlet pipes controls the rotation of the member, allowing for adjustable water output patterns, including rotating jet patterns, through a controller that varies the fluid flow distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a nozzle having multiple controlled water spraying holes is used to provide different spray patterns, then diverse jet patterns can be achieved, but continuously variable jet patterns and non-linear spray patterns cannot be provided
Solution Approach 1:
The patent employs a rotating member that can rotate around an axis to dynamically change the spray pattern. The rotating member includes an angled axle that rotates within the nozzle casing, allowing the water jet direction to continuously vary rather than being fixed in discrete positions. This dynamic mechanism enables continuously variable jet patterns and non-linear spray trajectories without requiring multiple separate nozzles or complex valve systems.
2Adaptability or versatility
If an angled axle rotating member is used to create rotating jet patterns, then continuously variable jet patterns can be achieved, but the nozzle structure becomes more complex
Solution Approach 1:
The rotating member serves multiple functions simultaneously: it creates the rotating jet pattern, controls the spray direction, and can be integrated with flow control mechanisms. The angled axle acts as both a structural support and a rotational element that defines the spray trajectory. By making this single component multi-functional, the patent reduces the need for separate mechanisms for each function, thereby limiting the increase in overall device complexity while achieving continuous jet pattern variability.
3Ease of operation
If fluid flow is used to control the rotation of the rotating member, then the water output pattern can be varied, but the system requires precise control of fluid flow distribution
Solution Approach 1:
The patent utilizes hydraulic principles by using fluid flow itself to control the rotation of the rotating member. The flow control mechanism directs water flow to specific inlet positions, and the resulting hydraulic forces cause the rotating member to rotate and change spray patterns. This direct hydraulic control eliminates the need for separate mechanical actuators or complex control systems, as the fluid flow simultaneously performs both the cleaning function and the pattern control function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the creation of adjustable and rotating water jet patterns, enhancing cleaning efficacy and user experience by allowing for customizable spray directions and intensities, suitable for integration into intelligent toilets and bidets.
Implementation Method 1
A first inlet pipe to the nozzle casing is positioned to cause the rotating member to rotate upon receiving fluid flow
Implementation Method 2
A a second inlet pipe to the nozzle casing is positioned to suppress rotation of the rotating member upon receiving fluid flow
Implementation Method 3
Because of the angle between the axle (i.e., swing bar) and the impeller, the cleaning water at the free end of the axle is advantageously caused to be sprayed out in a rotating jet pattern
Data Source
AI summary
A spray nozzle system for a bidet includes a nozzle casing and a rotating member within the nozzle casing. The rotation of the rotating member changes a water output pattern of the nozzle. A first inlet pipe to the nozzle casing is positioned to cause the rotating member to rotate upon receiving fluid flow. A second inlet pipe to the nozzle casing is positioned to suppress rotation of the rotating member upon receiving fluid flow. A controller is configured to vary the relative fluid flow provided to the first inlet pipe and the second inlet pipe, thereby controllably varying the water output pattern of the nozzle.