Nozzle drive device for bidet
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Solution Overview
Problem
Existing bidet technologies face limitations in accurately spraying wash water to the anus or genitals due to user position changes, inefficiency in water usage, and reduced cleaning efficacy, especially for individuals who reposition during use.
Innovation Solution
A nozzle drive device with a three-stage structure, including a nozzle cover, fixing part, extended nozzle part, and spray nozzle part, allowing for precise adjustment of wash water spray location based on user position, and a flow rate regulating valve to optimize water use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wash water is sprayed through a fixed spray nozzle, then the structure is simple, but the spray location cannot be adjusted when user position changes
Solution Approach 1:
The spray nozzle is transformed from a fixed structure to a movable one through a drive mechanism. The nozzle can dynamically adjust its position along the longitudinal axis based on user seating position, enabling adaptability while maintaining a relatively simple overall structure through automated control.
Solution Approach 2:
The system automatically detects user seating position and adjusts the spray nozzle position accordingly without requiring manual intervention. The drive mechanism is controlled by a controller that autonomously positions the nozzle to match the detected user position, making the system self-adjusting.
2Reliability
If wash water is sprayed linearly through a guide rib, then the enema function is improved, but water is wasted due to collision in narrow area
Solution Approach 1:
The spray nozzle position is dynamically adjusted based on user seating position detection. By positioning the nozzle optimally before spraying, the system ensures that wash water reaches the target area without wasteful collision, thereby reducing water consumption while maintaining effective enema function.
Solution Approach 2:
The system performs preliminary position adjustment of the spray nozzle based on detected user seating position before the actual spraying action. This pre-positioning ensures that when wash water is sprayed, it is delivered accurately to the target area, preventing water waste from misdirected spray.
3Measurement precision
If spray nozzle position is fixed, then the device is simple to operate, but cleaning accuracy decreases when user repositions
Solution Approach 1:
The system automatically detects user seating position and adjusts the spray nozzle position without requiring manual intervention. This self-service capability maintains high spray targeting accuracy while keeping the operation simple for the user, as no manual adjustment is needed.
Solution Approach 2:
The system uses a sensor to detect user seating position and provides feedback to a controller, which then adjusts the spray nozzle position accordingly. This feedback loop ensures continuous accuracy in spray targeting while maintaining ease of operation through automated control.
4Measurement precision
If only front and rear nozzle position adjustment is provided, then the structure is simple, but accurate spray location adjustment is difficult
Solution Approach 1:
The nozzle adjustment mechanism is transformed from a simple manual system to an automated dynamic system. The drive mechanism enables precise longitudinal positioning of the nozzle based on detected user position, achieving high spray location precision while keeping the adjustment process automated rather than manually complex.
Solution Approach 2:
The manual mechanical adjustment system is replaced with an automated drive mechanism controlled by electrical or electronic signals. This substitution achieves precise nozzle positioning without requiring complex manual adjustment mechanisms, thereby improving spray location precision without proportionally increasing device complexity.
Data Source
AI summary
Disclosed is a nozzle drive device for a bidet, the device including: a nozzle cover mounted on a water supply part to which a water supply source is connected; a nozzle fixing part coupled to an inside of the nozzle cover; an extended nozzle part slidably coupled to an inside of the nozzle fixing part and simultaneously communicating with a base end of the nozzle cover and a front end of the nozzle cover; a spray nozzle part coupled to the inside of the extended nozzle part to be slidably movable toward an upper end portion, and having at least one spray hole connected to the water supply part so as to spray wash water to an outside; and a driving part having a wound member coupled to an outside of the nozzle cover, the wound member being rotated so as to draw and insert the extended nozzle part and the spray nozzle part in multiple stages.