Retractable Chopstick Locking Structure for Portable Reuse
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Solution Overview
Problem
Disposable chopsticks often contain chemical additives and heavy metals, posing food safety risks and environmental concerns, and their elongated shape makes them inconvenient to carry, discouraging reuse.
Innovation Solution
A retractable pair of chopsticks with a first elongated body having a storage space and a second body that can be completely or partially received within, featuring a locking mechanism to ensure portability and easy cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chopsticks are made reusable to prevent food safety issues and reduce environmental impact, then food safety and environmental friendliness are improved, but portability deteriorates due to their elongated shape
Solution Approach 1:
The second chopstick body is nested inside the first chopstick body, forming a compact retractable structure. The storage space within the first body accommodates the second body, allowing the chopsticks to be stored in a condensed form while maintaining full functionality when extended.
Solution Approach 2:
The chopstick structure transitions from a static elongated form to a dynamic retractable form. The second body can be inserted into and removed from the first body, allowing the chopsticks to change their effective length and storage configuration based on usage needs.
2Ease of operation
If chopsticks are made retractable to improve portability, then ease of carrying is improved, but device complexity increases due to additional storage space and locking mechanisms
Solution Approach 1:
The storage space is integrated within the first body itself, eliminating the need for separate storage containers. The second body nests directly into the first body's internal cavity, creating a self-contained retractable structure that minimizes additional components.
Solution Approach 2:
The chopstick is divided into two separable bodies with distinct functions. The first body serves as both a functional chopstick and a storage container, while the second body is the removable chopstick component. This segmentation allows for simplified individual parts that combine to create the retractable functionality.
Data Source
AI summary
A pair of chopsticks is disclosed, each of which includes a first body, a second body, and a locking member. The first body has at least one positioning slot, a storage space, and an opening communicating with the storage space. The second body can be completely or partly received in the storage space through the opening of the first body, wherein an outer wall of the second body has at least one protrusion which enters the positioning slot when the second body is in a predetermined position in the storage space. The locking member has a locking portion engaged with the first body, wherein the locking member is controllable to make the locking portion enter the positioning slot to prevent the protrusion therein from leaving the positioning slot whereby the chopsticks are retractable and more portable.