Water Spray Gun One-Handed Locking Control
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Solution Overview
Problem
Existing water spray guns lack the ability to be easily switched between locked and unlocked states and offer only single-function control over water outflow, making them less ergonomic and labor-intensive for users.
Innovation Solution
A water spray gun design featuring a main body, operating member, switch part, and positioning portion that allows for one-handed operation, locking at desired positions, and multi-stage adjustment of water outflow, using a control assembly with a valve stem and spring to control water flow through engagement and disengagement with a positioning portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single-function control assembly is used, then the device structure is simple, but the ease of operation is reduced and labor intensity increases
Solution Approach 1:
The control assembly is designed to perform multiple functions: it controls water outflow on/off and provides multi-stage adjustment of water flow rate through the switch part engaging with different positioning portions. This multi-functional design improves ease of operation by consolidating control functions while managing device complexity through integrated structure.
Solution Approach 2:
The control assembly is segmented into distinct functional components: the valve stem for flow control, the spring for actuation, the switch part for state selection, and positioning portions for multi-stage adjustment. This segmentation allows each component to perform its specific function efficiently, improving overall ease of operation while maintaining manageable complexity through modular design.
2Adaptability or versatility
If multi-stage adjustment of water outflow is added, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The control assembly serves multiple purposes: controlling water flow on/off and providing multi-stage flow rate adjustment. The switch part can engage with different positioning portions to achieve various flow rates, making the device adaptable to different spraying needs while keeping the overall structure integrated and manageable.
Solution Approach 2:
The control assembly provides dynamic adjustment capability through the switch part that can be positioned at different locking positions corresponding to different water flow rates. This dynamic adaptability allows the device to respond to varying operational requirements without requiring multiple separate devices, thereby improving versatility while controlling complexity.
3Ease of operation
If the operating member is pivotally connected close to the main body, then the structural stability is improved, but the ease of operation is reduced
Solution Approach 1:
The operating member is pivotally connected to the handle portion, extending the control mechanism into a different spatial dimension. This allows the user to operate the spray gun with one hand while maintaining structural stability through the pivotal connection to the handle, rather than connecting close to the main body which would reduce leverage and ease of operation.
Solution Approach 2:
The handle portion serves as an intermediary between the user's hand and the main body of the spray gun. By pivotally connecting the operating member to the handle portion, the design provides both ease of operation (through better leverage and hand positioning) and structural stability (through the rigid handle connection to the main body).
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 easy switching between locked and unlocked states and provides multi-stage adjustment of water outflow, enhancing user ergonomics and reducing labor requirements for controlling water flow.
Implementation Method 1
a spring (17) arranged at the chamber (14) and having a rear end abutting against the rear end (162) of the valve stem (16)
Data Source
Figure 1
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AI summary
A water spray gun includes a main body, an operating member and a switch part. The main body includes a handle portion and a tube portion extended from the handle portion and provided with a spray head. A control assembly is enclosed in the main body for control of water outflow and adjustment of the amount of the water outflow. The operating member is pivotally connected to the position where the handle portion meets the tube portion. The switch part is arranged at the operating member and is engaged with the control assembly. The amount of water outflow is controlled by relative movement between the switch part and the operating member.