Ceiling Fan Blade Mounting Wedge Mechanism
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Solution Overview
Problem
The existing ceiling fan blade mounting systems are inconvenient for assembly and disassembly due to the use of bolts or screws, which complicates the process of attaching and detaching fan blades from the blade holding base.
Innovation Solution
A ceiling fan blade mounting structure that includes a blade holding base with spaced connection members, fan blades with corresponding connection holes, and a fastening assembly comprising a wedging member, rotating block, and fastening member, allowing for secure attachment and detachment without screws through rotational mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If bolts or screws are used to fixedly connect fan blades to the blade holding base, then the connection strength is improved, but the ease of assembly and disassembly deteriorates
Solution Approach 1:
The patent applies the dynamics principle by replacing static bolt/screw connections with a dynamic wedge mechanism. The wedge member can be inserted and removed easily, and when inserted, it generates expanding force through its wedge shape to tightly press the fan blade against the blade holding base. This dynamic mechanism provides both ease of operation during assembly/disassembly and strong connection when engaged.
Solution Approach 2:
The patent substitutes the traditional mechanical bolt/screw fastening system with a wedge-based mechanical system. The wedge member, when inserted between the fan blade and blade holding base, utilizes wedge mechanics to generate expansive pressing force, replacing the need for threaded fasteners while achieving both strong connection and easy operation.
2Reliability
If multiple bolts or screws are used to secure each fan blade, then the reliability of connection is improved, but the device complexity increases
Solution Approach 1:
The patent extracts and eliminates the need for multiple bolts or screws from the connection system. By using a single wedge member that generates expansive force, the design removes the complexity of multiple fastening components while maintaining reliable connection through the wedge's pressing action against the fan blade and blade holding base.
Solution Approach 2:
The wedge member serves multiple functions simultaneously: it acts as a fastening element, a pressing mechanism, and a locking component. This multi-functional design replaces the need for separate bolts, washers, and nuts, reducing device complexity while ensuring reliable connection through its comprehensive fastening action.
3Ease of operation
If a screw-free fastening mechanism is used, then the ease of operation is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies preliminary action by designing the wedge member with pre-formed wedge surfaces and positioning structures that guide its insertion. The connection holes and wedge geometry are预先 designed to ensure proper alignment and engagement, reducing the need for high-precision adjustment during assembly while maintaining reliable connection.
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
Facilitates easy mounting and dismounting of fan blades by providing a secure and stable connection that is screw-free, enhancing the assembly and disassembly process while maintaining structural integrity.
Implementation Method 1
a wedging member, a rotating block and a fastening member, the wedging member being fastened with one of the plurality of connection members and abutting and tightly pressing the fan blade against the blade holding base
Implementation Method 2
the rotating block having a first end rotatably connected to the wedging member and a second end rotatably connected to a first end of the fastening member, and the fastening member rotating about the rotating block
Data Source
AI summary
A ceiling fan blade mounting structure includes a blade holding base and a fastening assembly. The blade holding base includes a plurality of connection members spaced apart from each other. The fastening assembly includes a wedging member, a rotating block, and a fastening member. The wedging member is fastened with one of the plurality of connection members. A first end of the rotating block is rotatably connected to the wedging member. A first end of the fastening member is rotatably connected to a second end of the rotating block. The fastening member is configured to rotate about the rotating block to cause a second end of the fastening member to be fastened with another one of the plurality of connection members.