Lifting table
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Solution Overview
Problem
Existing electric lifting tables face issues with stability and efficiency due to the need for high driving force, leading to increased motor size and weight, and lack of a locking mechanism for maintaining platform position, resulting in instability and difficulty in lifting.
Innovation Solution
A lifting table design featuring an X-shaped supporting leg with an inclined connecting rod mechanism that applies an oblique force to assist the motor's driving force, reducing the starting force required and providing stability through a combined structure of long and short connecting rods, along with a tact switch for position limiting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a motor of proper specification with larger volume is chosen to provide sufficient driving force, then the lifting capability is improved, but the motor occupies more space and increases the weight and size of the lifting table
Solution Approach 1:
The patent applies the counterweight principle by introducing an inclined connecting rod mechanism that generates an auxiliary oblique force to counterbalance part of the load weight. This auxiliary force acts on the X-shaped supporting leg to assist the motor, reducing the driving force requirement and enabling a smaller motor to be used while maintaining sufficient lifting capability.
2Force
If a motor of proper specification with larger volume is chosen to provide sufficient driving force, then the lifting capability is improved, but the weight of the entire lifting table is increased
Solution Approach 1:
The inclined connecting rod mechanism functions as a mechanical counterweight system, where the oblique force generated by the mechanism offsets a portion of the gravitational force acting on the loading platform. This reduces the net force that the motor must provide, thereby reducing the motor size and overall system weight.
3Device complexity
If the supporting arm lacks a locking structure, then the structure is simpler, but the loading platform has a downward tendency and poor stability when staying at any position
Solution Approach 1:
The X-shaped supporting leg structure utilizes the geometric properties of the X-shape and the inclined connecting rod mechanism to create a self-stabilizing system. The oblique force continuously applied by the inclined connecting rod mechanism to the X-shaped supporting leg provides inherent positional stability and prevents downward tendency, eliminating the need for additional locking structures while maintaining structural simplicity.
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 solution enhances the efficiency and stability of the lifting table by reducing the motor's required output force, minimizing size and weight, and ensuring safe operation with improved support and position control.
Implementation Method 1
an inclined connecting rod mechanism which always applies an oblique force to the X-shaped supporting leg
Implementation Method 2
the main shaft of the motor is connected with a screw rod, and the sliding plate is slidably connected to the bottom plate, the screw rod is connected with the sliding plate
Data Source
AI summary
The present disclosure discloses a lifting table, has a tabletop plate, a table-supporting frame connected with the tabletop plate, a base, an X-shaped supporting leg for connecting the table-supporting frame and the base, and a power driving device controlling the open-and-close of the X-shaped supporting leg to achieve the lifting of the tabletop plate, the power driving device is connected to the table-supporting frame, and the power output end of the power driving device is connected with the X-shaped supporting leg; the lifting table further comprises an inclined connecting rod mechanism which always applies an oblique force to the X-shaped supporting leg; one end of the inclined connecting rod mechanism is connected to the X-shaped supporting leg, and the other end of the inclined connecting rod mechanism is connected to the power driving device.