Folding Stroller Rear-Wheel Brake Groove Locking Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The braking effect of existing folding stroller wheels is not ideal, leading to potential safety issues and instability during use.
Innovation Solution
A folding stroller with a brake mechanism that includes a brake turntable and a pedal member with a brake projection that slides into grooves to lock the rear wheel, combined with a reinforcing frame structure featuring multiple frame units and link rods to enhance stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an abutment block is used to abut against the wheel for braking, then the braking structure is simple, but the braking effect is not ideal
Solution Approach 1:
The brake turntable is segmented with multiple brake grooves circumferentially spaced apart, allowing the brake projection to engage at different positions. This segmentation provides multiple braking points around the wheel circumference, significantly improving braking effectiveness compared to a single abutment block
Solution Approach 2:
The brake projection on the pedal member acts as an intermediary element that engages with the brake grooves on the brake turntable. This intermediary mechanism provides more reliable braking than direct abutment by creating positive mechanical engagement through the groove-projection interface
2Strength
If a simple frame structure is used, then the device complexity is low, but the structural strength and stability are insufficient
Solution Approach 1:
The frame structure merges multiple frame units with reinforcing beams to create a unified, strengthened structure. The reinforcing beams connect the frame units, distributing loads across the entire frame assembly and significantly improving overall structural strength and stability
Solution Approach 2:
The frame structure uses composite construction combining multiple管材 (pipe materials) and connecting elements. Different frame units and reinforcing components are combined to create a composite structure that leverages the strengths of each component for enhanced overall performance
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 new brake mechanism provides reliable wheel locking and improves structural strength, reducing the likelihood of deformation and enhancing maneuverability.
Implementation Method 1
the brake projection is inserted into the brake groove; the pedal member is slidably mounted up and down on the connecting base and has a braking position and an unlocking position; the brake projection is inserted into the brake groove when the pedal member is in a braking position
Implementation Method 2
a drive spring configured for driving the ball plunger to move in the direction of the connecting base at all times
Data Source
AI summary
The disclosure relates to a folding stroller, and relates to the field of strollers, including a front frame, a rear frame, a folding mechanism configured for connecting the front frame and the rear frame, a set of front wheels mounted to the front frame and a set of rear wheels mounted to the rear frame; the rear wheel includes a connecting base, a wheel body and a brake mechanism; the brake mechanism includes a brake turntable and a pedal member configured for cooperating with the brake turntable; a plurality of brake grooves are circumferentially spaced apart from the brake turntable; and the pedal has a brake projection inserted into the brake groove. The disclosure can improve the braking effect of the wheels in the folding stroller and has a more ideal structural strength.