Water and Bubble Toy Pump Mechanism for Child Operation
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Solution Overview
Problem
Traditional water and bubble toys are difficult for small children to operate due to limited strength and dexterity, and existing pressurization mechanisms increase cost and safety hazards while using inexpensive materials that are not suited for pressurized fluids.
Innovation Solution
A toy design featuring a separate lever-operated pump for fluid expulsion and an electric motor-activated second reservoir for bubble generation, allowing for increased pressure without additional moving parts and improved safety, with a compact and stable design capable of expelling fluids from multiple reservoirs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional finger triggers are used to activate water squirting and bubble generating mechanisms, then the toy can be operated, but small children have difficulty operating the actuators due to limited strength and dexterity
Solution Approach 1:
The patent transforms the static pump mechanism into a dynamic reciprocating system. The pump rod moves back and forth within the pump chamber, creating alternating pressure zones that draw water in during the retraction stroke and expel it during the forward stroke. This dynamic motion reduces the peak force required compared to a static compression mechanism, making it operable by small children with limited hand strength.
Solution Approach 2:
The patent adds a temporal dimension to the operation by implementing a reciprocating motion cycle. Instead of requiring continuous high force in one direction, the actuator operates in alternating phases of force application and recovery. This dimensional transformation from static to cyclic operation allows small children to generate sufficient pressure through repeated gentle pumping motions rather than requiring strong single-handed force.
2Productivity
If pressurization mechanisms are added to build up pressure in a reservoir, then water can be projected to greater distances, but the mechanisms add moving parts increasing cost and product failure rates
Solution Approach 1:
The patent designs the pump mechanism to serve multiple functions: it acts as both the pressurization device and the fluid delivery system. The same pump rod that generates pressure also directly channels water through the nozzle. This multi-functionality eliminates the need for separate pressurization chambers, valves, and conduits, reducing the number of moving parts while maintaining effective water projection distance.
Solution Approach 2:
The patent merges the reservoir, pump chamber, and delivery system into a single integrated unit. The pump rod moves within the water reservoir itself, drawing water directly from the main chamber and expelling it through an integrated nozzle. This consolidation eliminates multiple separate components and joints that would increase complexity and failure points, while still achieving the necessary pressure buildup for distant water projection.
3Stress or pressure
If pressurization mechanisms are used to increase water pressure, then water can be projected further, but the mechanisms constitute safety hazards due to low tensile strength of plastic materials
Solution Approach 1:
The patent employs periodic reciprocating action instead of continuous pressurization. The pump rod alternates between drawing water in and expelling it, creating pressure only during the brief forward stroke. This periodic pressure generation avoids the sustained high-pressure conditions that create safety hazards, allowing the plastic reservoir to safely contain water while still achieving effective projection during the expulsion phase.
Solution Approach 2:
The patent incorporates a large water reservoir that acts as a cushioning element. The substantial volume of water in the reservoir absorbs pressure fluctuations and prevents dangerous pressure buildup. This prior cushioning capacity allows the system to generate sufficient pressure for water projection while maintaining safety margins that prevent reservoir failure, addressing the safety concerns associated with pressurized plastic containers.
4Adaptability or versatility
If multiple actuators are added to operate different functions, then the toy can perform more operations, but small children have difficulty operating multiple finger triggers in close proximity
Solution Approach 1:
The patent segments the control functions into distinct actuation zones: a lever on one side of the handle for water squirting and a finger trigger on the other side for bubble generation. This spatial segmentation separates the controls for different functions, making them easily distinguishable and operable by small children who may have difficulty with closely positioned actuators. Each function has its own dedicated control element in a separate location.
Solution Approach 2:
The patent distributes controls across different spatial dimensions rather than concentrating them in one area. The water squirting lever is positioned on the upper side of the handle while the bubble generating trigger is on the lower side, creating vertical separation. This dimensional distribution of controls makes it easier for small children to locate and operate each function independently without confusion from closely positioned actuators.
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 operation by small children, generates sufficient pressure safely, and maximizes stability while reducing product complexity and material costs, allowing for efficient fluid projection and bubble creation.
Implementation Method 1
The pressurization mechanisms added several moving parts... the lever activates the pump when the lever pulled towards the user
Implementation Method 2
The fluid in the second reservoir is pumped by an electric motor activated by a finger trigger
Implementation Method 3
A fan blows air through the ring and helps generate and propel bubbles from the ring
Data Source
AI summary
A water and bubble toy includes a water projecting assembly and a bubble generating assembly. Water is stored in a water reservoir located in a rear handle of the toy while bubble solution is stored in a detachable reservoir. The water generating assembly is operated by a lever located toward an upper end of the toy. When the lever is pulled, the lever activates a first pump that expels water from the toy. The bubble generating assembly is operated by a finger trigger that activates an electric motor, which powers a second pump and a fan. The second pump pumps bubble solution to a ring and the bubble solution coats the ring. The fan blows air through the ring and helps generate and propel bubbles from the ring.