Cargo Box Rail Latching for Stable Cart Transport
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Solution Overview
Problem
Conventional cargo boxes experience vibrations and collisions during transportation due to road conditions, leading to instability and displacement of cargo.
Innovation Solution
A cargo box design featuring guiding rods, safety latches, and liftable holders to stabilize cargo by restricting movement and securing carts within the box, using rails and holders to minimize vibration impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional cargo boxes are used for transporting wheeled carts, then the cargo box structure is simple, but vibrations and collisions occur during transportation causing cargo instability and displacement
Solution Approach 1:
The cargo box is segmented into multiple functional components: rails for guiding, safety latches for securing, and liftable holders for support. Each component performs a specific stabilization function, dividing the complex stabilization task into manageable segments that work together to prevent cargo displacement during transportation
Solution Approach 2:
The safety latches are pre-positioned along the rails at predetermined locations. Before transportation begins, the carts are secured to the rails using these pre-positioned latches, and the liftable holders are lowered to contact the carts beforehand. This preliminary securing action ensures that when vibrations occur during transport, the cargo is already restrained and cannot displace
2Reliability
If safety latches are added to restrict cart movement on rails, then cargo displacement is reduced, but the device complexity increases
Solution Approach 1:
The safety latches are designed to automatically engage with the carts on the rails through their own weight and mechanical advantage. The latch mechanism self-secures without requiring additional actuators or complex control systems, achieving reliable cargo securing while maintaining relatively simple device structure
Solution Approach 2:
The safety latches are positioned at predetermined locations along the rails where they naturally align with the carts. This equipotential positioning ensures that the latches can effectively restrict cart movement at multiple positions without requiring complex positioning mechanisms or additional adjustment devices
3Object-affected harmful factors
If liftable holders are used to contact cart top surface, then vibration impact is reduced, but the device complexity increases
Solution Approach 1:
The liftable holders are lowered beforehand to contact the top surface of the carts before transportation begins. This prior contact establishes a cushioning support system that absorbs and dampens vibrations during transport, protecting the cargo from harmful vibrational effects without requiring complex vibration isolation systems during the transport phase
Data Source
AI summary
A cargo box for transporting a cart having guiding rods includes a cargo box body for accommodating the cart; and a cargo box hatch that can be raised, lowered, opened, and closed. The cargo box body includes a first rail, and a liftable holder including a lift rod, a connecting rod, a branch portion, and at least one holding portion. The first rail is provided with a set of safety latches along a first direction, which hold the cart at a predetermined position on the first rail by restricting movement of the guiding rods on the first rail in the first direction.