Beach Cleaner Swing Mechanism for Sand Separation
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Solution Overview
Problem
Conventional beach cleaners struggle to effectively screen out sand from collected trash, leading to sand being stocked on the mesh member without separation, and pebbles or other debris rolling and causing trash to drop out during screening processes.
Innovation Solution
A beach cleaner design featuring a trash withdrawing member with a fixed and swingable body, where the swing withdrawing body is supported to swing at a lower position than the fixed body, applying vibration to separate trash and sand, and a wheel at the rear of the frame to prevent dropout of pebbles, with a support shaft and sub-frame configuration to enhance structural firmness and vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the frame is connected to the ground surface through a ski member, then the beach cleaner can operate on sandy beaches, but vibration applied to the trash withdrawing member is insufficient and sand is stocked on the mesh member without being screened out
Solution Approach 1:
The patent applies the dynamics principle by making the trash withdrawing member swingable instead of fixed. The trash withdrawing member is supported to swing between a raised position and a lowered position, creating dynamic motion that generates vibration to screen sand from trash. This dynamic configuration resolves the contradiction by providing sufficient vibration for effective screening while maintaining ease of operation through automatic swinging motion driven by the vehicle's movement.
Solution Approach 2:
The patent directly applies mechanical vibration by utilizing the swinging motion of the trash withdrawing member to generate vibratory forces. As the member swings between raised and lowered positions, it creates mechanical vibration that separates sand from trash on the mesh member, effectively screening the sand without requiring additional removal operations.
2Reliability
If sand is screened out by meandering the trailing vehicle, then sand can be separated, but pebbles or other debris roll in connection with swinging and trash that has been withdrawn drops out
Solution Approach 1:
The patent applies dynamics by using controlled swinging motion of the trash withdrawing member instead of meandering the entire vehicle. The member swings between raised and lowered positions, creating a controlled dynamic environment that prevents pebbles from rolling excessively while maintaining effective trash screening. This resolves the contradiction by providing reliable trash collection without the harmful effects of uncontrolled vehicle meandering.
3Reliability
If a swing withdrawing body is added to apply vibration, then sand screening is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the trash withdrawing member into a fixed withdrawing body and a swing withdrawing body. The swing withdrawing body is further divided into a mesh member and a swing arm. This segmentation allows the vibration-generating swing function to be added while maintaining a relatively simple overall structure, resolving the contradiction between improved sand screening and increased device complexity.
Solution Approach 2:
The patent applies dynamics by implementing a swing mechanism that utilizes the natural swinging motion between raised and lowered positions. This dynamic approach generates the necessary vibration for sand screening without requiring complex mechanical vibration generators or motors, thereby improving sand screening effectiveness while keeping the device structure relatively simple.
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 effectively screens out sand from the mesh member, intercepts trash to prevent dropout, and reduces the burden on workers by ensuring efficient separation and collection of trash without sand invasion into the system.
Implementation Method 1
the vibration caused by swinging is applied to the swing withdrawing body of the trash withdrawing member, and thus the sand invading onto the mesh member can be excellently screened out
Data Source
AI summary
A beach cleaner has a frame formed by a longitudinal member and a lateral member, a ski member that is secured to a front portion of the frame and grounded to a sand surface GL, a trailing target portion that is trailed by a trailing vehicle, a separator that is provided at a front lower portion of the frame and scrapes up trash from a sand area while separating the trash from sand, a trash withdrawing member that is provided to the frame at a rear side of the separator to collect the trash scraped up by the separator onto a mesh member, and a wheel at a rear side of the frame. The trash withdrawing member has a fixed withdrawing body that is located at a front end portion and fixed to the frame, and a swing withdrawing body.