Adjustable-Angle Open-Close Mechanism for Narrow-Space Operation
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Solution Overview
Problem
Existing labor-saving open-close devices are inconvenient to use in narrow spaces and lack adjustable bending angles for handheld portions, limiting their applicability in special occasions with small operation spaces.
Innovation Solution
An open-close device with rotatable members and angle adjusting devices at joints, allowing users to self-adjust the bending angle of handheld portions relative to clamping portions, enabling flexible operation in confined spaces while maintaining labor-saving functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the handheld portions are made long to achieve labor-saving effects, then the mechanical advantage is improved, but the device cannot be used in narrow spaces
Solution Approach 1:
The handheld portions are designed with adjustable bending angles through angle adjusting devices at the joints, allowing the device to dynamically change its configuration. This enables the device to adapt between extended positions for mechanical advantage and bent positions for narrow space operation, resolving the contradiction between power and adaptability
2Adaptability or versatility
If the handheld portions are bent to fit narrow spaces, then the adaptability is improved, but the labor-saving effect is lost
Solution Approach 1:
The device allows users to adjust the bending angle of handheld portions dynamically. When working in narrow spaces, the portions can be bent to fit the confined area while maintaining the ability to extend for mechanical advantage when needed, thus preserving both adaptability and power capabilities
3Device complexity
If the angle of handheld portions is fixed, then the device structure is simple, but it cannot adapt to different operation spaces
Solution Approach 1:
Angle adjusting devices are incorporated at the joints between handheld portions and clamping portions, enabling the device to change its configuration from fixed to adjustable. This allows the device to adapt to different operation spaces while maintaining relative structural simplicity through standardized adjustment 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
The device allows for adjustable bending angles, enhancing usability in narrow spaces and providing labor-saving benefits, making it suitable for a wider range of applications.
Implementation Method 1
a first member (1); a second member (2), rotatably connected to the first member (1); a third member (3), rotatably connected to the first member (1); and a fourth member (4), rotatably connected to the second member (2) and rotatably connected to the third member (3)
Data Source
AI summary
The present invention provides an open-close device, including a first member, a second member, a third member and a fourth member; the second member is rotatably connected to the first member, the third member is rotatably connected to the first member, the fourth member is rotatably connected to the second member and rotatably connected to the third member; the open-close device further includes an angle adjusting device which is provided at a joint between the third member and the first member, for adjusting the bending angle of the third member with respect to the first member.