Spray Switch With Elastic Wire And Guide Pins For Mode Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing spray guns lack the ability to switch between auto spray and manual spray modes with water flow control before the first press, limiting user control over water flow.
Innovation Solution
A spray switch with an elastic wire and guide pins, integrated with a guide block and buckle unit, allows the press handle to pivot and engage or ignore guide pins, enabling switching between auto and manual spray modes by adjusting the guide block's position along a slot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single press handle mechanism is used for spray control, then the device structure is simple, but the user cannot switch between auto spray and manual spray modes with water flow control
Solution Approach 1:
The press handle is designed to be movable rather than fixed, allowing it to pivot between different positions. The handle can move between a released position (manual spray mode) and a pressed position (auto spray mode), enabling the system to switch between operating modes dynamically based on user input
Solution Approach 2:
The single press handle mechanism serves multiple functions: it can be held in a released position for manual spray control, pressed briefly for auto spray initiation, or pressed and held for continuous auto spray. This multi-functionality allows one component to replace what would traditionally require separate mechanisms for different spray modes
2Ease of operation
If the press handle is always engaged with guide pins for automatic arrest, then continuous spray is achieved, but the user loses manual control over water flow
Solution Approach 1:
The engagement between the press handle and guide pins is made dynamic rather than permanent. The handle can pivot to engage with the guide pins for automatic arrest in auto spray mode, or pivot away to disengage for manual control in manual spray mode, allowing the system to switch between automated and manual operation
Solution Approach 2:
The control mechanism is segmented into distinct functional zones: the guide pins provide automatic arrest functionality when engaged, while the open slot allows the handle to move freely when disengaged. This segmentation allows the user to choose between automatic and manual control by simply changing the engagement state
3Adaptability or versatility
If guide pins are always engaged in recesses for automatic spray, then continuous spray is maintained, but the user cannot control water flow manually
Solution Approach 1:
The guide block is designed with an open slot that provides an additional dimensional space for the press handle to move. This open slot allows the handle to pivot between engaged and disengaged states, adding a new degree of freedom that enables mode switching without requiring complex additional mechanisms
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 seamless switching between continuous and manual spraying modes with a single press, providing user-controlled water flow management.
Implementation Method 1
an approximate square elastic wire 30 is buckled into the rear slots 113 with a middle section of the elastic wire 30. Two parallel sections extending from the middle section of the elastic wire 30 are buckled into the lateral slots 112. The two end of the elastic wire 30 are bent towards each other so as to form as two symmetric guide pins 32.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A spray switch (46) for a spray gun includes an elastic wire (30) buckled to a main pipe (11) of the spray gun. The elastic wire (30) has symmetric lateral portions and symmetric guide pins (32) on two ends thereof. A press handle (40) pivoted to a main body (10) of the spray gun is capable of controlling a flow of water. The press handle (40) has an open slot (45) for slidly arranging the spray switch (46). The spray switch (46) is assembled by a guide block (461) and a buckle unit (462). The guide block (461) has symmetric guides and recesses on two lateral sides for guiding and holding the guide pins (32). The spray switch (46) can be switched up and down along the open slot to switch the guide block (461) for engaging or ignoring the guide pins (32) so as to switch the spray gun between modes of auto spray and manual spray.