Foldable Electric Bed Frame With Adjustable Push Rod Height
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Solution Overview
Problem
The increased thickness of the folded bed board due to a higher angle of inclination of the push rod in electric beds leads to higher transportation costs, as existing designs require larger bed boards and fixed mounting positions, limiting the reduction of thickness.
Innovation Solution
A foldable electric bed frame with a push rod that includes a height adjusting piece and a height locking piece, allowing the bed frame to be folded with a reduced thickness while maintaining a good force-bearing condition, and featuring a connection device that adjusts the distance between the height adjusting piece and the second board, enabling flexible use without dismounting the push rod.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the angle of inclination of the push rod is increased to reduce the required push force, then the force-bearing condition is improved, but the thickness of the folded bed board increases leading to higher transportation costs
Solution Approach 1:
The push rod mounting position is made adjustable rather than fixed. The connection device includes a height adjusting piece that can be positioned at different heights on the second board, allowing the push rod angle to be optimized for force-bearing during use while enabling compact folding configuration during transportation.
Solution Approach 2:
The angle of inclination of the push rod is changed as an adjustable parameter. By adjusting the height of the connection point on the second board, the push rod angle can be optimized for different states: a larger angle for better force-bearing during use, and a smaller angle for reduced thickness during folding and transportation.
2Strength
If the thickness of the bed board is increased to accommodate a larger push rod mounting angle, then the force-bearing condition is improved, but the transportation cost increases
Solution Approach 1:
The bed board thickness is maintained at a standard, cost-effective level while the push rod mounting height is made adjustable. This allows the system to achieve optimal force-bearing conditions through parameter adjustment rather than increasing material thickness, thereby reducing transportation costs.
Solution Approach 2:
Instead of changing the physical dimension (thickness) of the bed board, the solution changes the operational parameter (push rod mounting height) to achieve better force-bearing conditions, avoiding the need for thicker boards and associated increased transportation costs.
3Device complexity
If the push rod mounting positions are made fixed to simplify the structure, then the device complexity is reduced, but the ability to adjust the push rod angle for optimal force-bearing is lost
Solution Approach 1:
The connection device is segmented into multiple components: a height adjusting piece with multiple positioning holes, a connection plate, and a locking mechanism. This segmentation allows for adjustable mounting positions while keeping each individual component relatively simple in structure.
Solution Approach 2:
The connection device serves multiple functions: it provides adjustable mounting positions for optimal force-bearing, enables quick adjustment without tools, and maintains structural integrity. This multi-functionality is achieved through a relatively simple integrated structure rather than multiple separate components.
Data Source
AI summary
A foldable electric bed frame is provided which comprises a bottom frame and a push rod; a first board and a second board hinged to each other are disposed on the top of the bottom frame, one end of the push rod is rotatably connected to a side edge of the second board through a connection device which comprises a height adjusting piece and a height locking piece; a distance from the height adjusting piece to the second board in a working state is larger than a distance from the height adjusting piece to the second board in a folded state, and the height locking piece locks a position of the height adjusting piece in the working state.