Handshower Water Distribution Structure for High-Pressure Spraying
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Solution Overview
Problem
Existing showerheads face challenges in providing a sprayer function with sufficient water pressure due to limited space and aperture sizes, resulting in a heavy hand feel during function switching and inadequate pressure when no pressurizing chambers are used.
Innovation Solution
A handshower design with a water distribution body featuring separate pressurizing chambers and distribution ports, allowing for larger apertures and reduced back pressure, enabling easy switching via a handle mechanism that amplifies force for lighter operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a conventional showerhead structure with limited vertical wall space is used, then the device size remains compact, but the aperture sizes of inlets are limited resulting in limited water flow and insufficient spray pressure
Solution Approach 1:
The patent transitions from a two-dimensional vertical wall arrangement to a three-dimensional water distribution chamber structure. The water distribution tray with multiple pressurizing chambers arranged in different spatial dimensions allows for larger aperture sizes without increasing the overall device footprint, thereby improving water flow while maintaining compact dimensions.
Solution Approach 2:
The water distribution body is segmented into multiple independent pressurizing chambers (first pressurizing chamber, second pressurizing chamber, third pressurizing chamber) with separate water paths. This segmentation allows each chamber to have optimized aperture sizes for sufficient water flow, while the modular arrangement maintains a compact overall structure.
2Reliability
If a sufficiently large pre-tightening force is applied to the sealing element to prevent water overflow during flow director movement, then sealing reliability is improved, but the hand feel becomes heavy during function switching
Solution Approach 1:
The patent introduces a flow director with a flow selector as an intermediary mechanism between the sealing element and the water flow. This allows the sealing element to maintain light pre-tightening force while the flow director actively controls water direction, preventing overflow without requiring heavy sealing force, thus keeping the hand feel light during switching.
Solution Approach 2:
The flow director structure is designed to self-seal through its own geometry and water pressure during switching operations. The flow selector guides water flow to naturally press against sealing surfaces, eliminating the need for heavy external pre-tightening forces on the sealing element, thereby reducing the effort required for function switching.
3Stress or pressure
If pressurizing chambers are equipped in each nozzle to provide sufficient spray pressure, then spray pressure is improved, but the device complexity and space requirements increase
Solution Approach 1:
The patent merges multiple pressurizing functions into a unified water distribution body with three pressurizing chambers that serve multiple nozzles simultaneously. Instead of equipping each nozzle with its own pressurizing chamber, the merged structure provides pressurized water to multiple spray outlets through shared water paths, reducing overall device complexity while maintaining sufficient spray pressure.
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
The design achieves sufficient water pressure without pressurizing chambers and provides a light hand feel during function switching by leveraging the water distribution body's structure and handle mechanism.
Implementation Method 1
The water distribution body is composed of a water outlet tray and a water distribution tray arranged side by side in the front and back respectively, the water outlet tray comprises one flow passage and at least one pressurizing chamber
Implementation Method 2
enabling easy switching via a handle mechanism that amplifies force for lighter operation
Data Source
AI summary
A handshower with a sprayer function, includes a head portion and a handle portion, wherein the head portion comprises a showerhead housing, a water distribution body, a turning tray, a spray outlet assembly, a shower outlet assembly and a switching handle; the showerhead housing is provided with a spray outlet assembly at one end away from the handle portion, and the spray outlet assembly includes at least one spray nozzle. The water distribution body is composed of a water outlet tray and a water distribution tray arranged side by side, the water outlet tray includes separated flow passage and at least one pressurizing chamber, the flow passage is in fluid communication with the shower outlet assembly, the pressurizing chamber is in fluid communication with the spray outlet assembly, the turning tray is turnably provided on the water distribution tray.