Manual Tweezers with Reciprocating Pull Rod Mechanism
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Solution Overview
Problem
Existing tweezers are labor-intensive, inconvenient to use, and affect user experience due to the need for pressing them in close proximity to objects, making them time-consuming and prone to damage.
Innovation Solution
The design includes a main body with a first fixing base, a pushing member, a pull rod, and clamping arms, where the pushing member drives the pull rod to reciprocate along the axial direction of the first fixing base, allowing for stable opening and closing of the clamping arms, enhanced by features like a silicone sleeve, elastic sheets, and a spring mechanism for ease of operation and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional V-shaped tweezers are used, then the structure is simple, but the operation is labor-intensive and requires pressing close to the object
Solution Approach 1:
The tweezers are divided into separate functional modules: a handle assembly with pushing member, a pull rod mechanism, and clamping arms. This segmentation allows each component to perform its specific function independently, improving ease of operation while maintaining manageable complexity through modular design
Solution Approach 2:
A pull rod is introduced as an intermediary element between the pushing member and clamping arms. The pull rod transmits the reciprocating motion from the pushing member to the clamping arms, enabling stable opening and closing without requiring the user to press close to the object, thus improving ease of operation
2Productivity
If traditional tweezers are used, then the structure is simple, but the operation is time-consuming
Solution Approach 1:
The spring mechanism provides continuous elastic force that continuously pushes the clamping arms together, eliminating the need for continuous manual pressure. The pushing member can be released once, and the spring maintains the clamping action, improving productivity by reducing the time required to maintain clamping pressure
Solution Approach 2:
The spring mechanism automatically maintains the clamping force without requiring continuous user input. The elastic sheet and spring work together to self-regulate the clamping pressure, allowing the user to simply activate the pushing member once and letting the system maintain the useful action automatically, thus improving productivity
3Reliability
If traditional tweezers are used, then the structure is simple, but the tweezers are easy to be damaged
Solution Approach 1:
A silicone sleeve is added as a protective cushioning layer around the pushing member. This silicone sleeve absorbs impact and friction during operation, protecting the internal mechanisms from damage before failures can occur. The elastic sheet also provides cushioning by absorbing excess force during clamping operations
Solution Approach 2:
The pushing member is covered with a silicone sleeve, creating a composite structure that combines the rigidity of the internal mechanism with the flexibility and protection of the silicone material. This composite approach improves reliability by protecting against damage while maintaining the functional complexity of the internal spring and pull rod mechanisms
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
This design enables simpler, more convenient, and accurate operation of tweezers, reducing the effort required and improving user experience while protecting the tool from damage.
Implementation Method 1
a spring that is partially sleeved on the first fixing base, wherein one end of the spring is abutted against the main body, and the other end of the spring is abutted against the pushing member
Implementation Method 2
a plurality of elastic sheets formed by notches are arranged at intervals on one side of the pushing member
Data Source
AI summary
A manual tweezer, including a main body, a first fixing base, a pushing member, a pull rod, and clamping arms, wherein the first fixing base is arranged on one side of the main body, and the pushing member is movably sleeved on the first fixing base to reciprocate relative to an axial direction of the first fixing base, and wherein the pull rod is respectively provided with a first end and a second end, the first end of the pull rod is fixedly connected to the pushing member, the second end of the pull rod is connected to the clamping arms, and the pushing member drives the pull rod to reciprocate along the axial direction of the first fixing base for driving the clamping arms to open and close. The manual tweezer further includes a silicone sleeve sleeved on the pushing member.