Lifting Vehicle Platform Horizontality Mechanism
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Solution Overview
Problem
Existing vehicles designed for lifting people to work at height are not suitable for safely handling and installing heavy or bulky objects, such as tunnel covering plates, due to difficulties in maintaining a horizontal platform across varying heights and slopes, requiring simultaneous use of a lifting vehicle and handling machine, which complicates operations.
Innovation Solution
A vehicle with a movable frame and a work platform connected by articulation means, allowing relative inclination in both longitudinal and transverse planes, equipped with motorized jacks and guide columns to maintain a horizontal platform, enabling safe access and handling of heavy objects while accommodating height and slope variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lifting vehicle with articulated arm or compass is used to elevate personnel to work at height, then personnel can access elevated work areas safely, but the vehicle cannot handle and install heavy or bulky objects due to inability to maintain horizontal platform on varying surfaces
Solution Approach 1:
The patent combines the lifting function with a horizontal platform maintenance system by integrating articulation means and motor means directly into the platform structure. This merging allows the single vehicle to perform both personnel lifting and heavy object handling by maintaining platform horizontality regardless of ground conditions.
Solution Approach 2:
The patent employs dynamic adjustment mechanisms including articulation means allowing relative inclination between support frame and platform, and motor means that actively adjust the platform angle in real-time. This dynamic capability enables the platform to remain horizontal even when the vehicle operates on sloped or uneven surfaces, thereby enabling heavy object handling while maintaining personnel safety.
2Adaptability or versatility
If a vehicle with articulation means and motor means is used to maintain horizontal platform, then the platform remains horizontal on varying slopes and heights, but the device complexity increases
Solution Approach 1:
The articulation means and motor means are designed to serve multiple functions: they enable the platform to adapt to varying ground slopes and heights while also providing the horizontal surface needed for heavy object handling. This multi-functionality justifies the increased complexity by eliminating the need for separate specialized equipment.
Solution Approach 2:
The motor means automatically adjust the platform inclination based on the support frame's position, maintaining horizontality without requiring external intervention or complex control systems. The system self-regulates to compensate for ground variations, reducing the need for additional complex control mechanisms.
3Ease of operation
If simultaneous use of lifting vehicle and handling machine is employed to install heavy plates, then heavy objects can be handled, but the operation becomes difficult and time-consuming requiring frequent vehicle repositioning
Solution Approach 1:
By merging the lifting vehicle and heavy object handling capabilities into a single integrated system with a horizontal platform, the patent eliminates the need for separate handling machines and frequent repositioning. The platform's inherent horizontality allows heavy objects to be handled and installed directly from the vehicle.
Solution Approach 2:
The horizontal platform acts as an intermediary surface between the vehicle and heavy objects. It provides a stable, level working surface that facilitates easy handling and installation of heavy plates without requiring additional handling equipment or repeated vehicle repositioning to different locations.
Data Source
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AI summary
The invention relates to a vehicle for lifting persons working at height, comprising: a movable chassis (2) equipped with a frame (7) for supporting a work platform (8) which is connected to articulation means (13) allowing a relative inclination between the support frame and the work platform, in the longitudinal plane (P) and in the transverse plane (T) of the platform, and drive means (30) for providing the relative inclination between the support frame (7) and the work platform (8) in the longitudinal plane (P) and in the transverse plane (T), so as to maintain the work platform (8) horizontal. According to the invention, the work platform (8) comprises a floor (11) mounted on a cradle (12) connected by the articulation means (13) to vertical movement guide means (14) which rise from the frame (7), and the drive means (30) raise and lower, with respect to the frame (7), the cradle (12) guided in its vertical sliding movement by the guide means (14).