Hydraulic Load Bar Pressure Relief for Trailer Flex Compensation
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Solution Overview
Problem
Traditional load securement bars for heavy-duty transportation can apply excessive pressure, damaging trailers and are prone to movement due to trailer flexibility, especially in refrigerated and dry freight applications, leading to compromised insulation and load instability.
Innovation Solution
A hydraulic securement device with a pressure relief control valve and a spring mechanism that adjusts pressure and compensates for trailer flexion, ensuring consistent load securing without damaging the trailer and maintaining load stability during transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If traditional mechanical load securement bars are used to secure heavy-duty cargo, then the load can be secured with sufficient force, but excessive pressure is applied to the trailer walls causing damage and the bars are prone to movement due to trailer flexibility
Solution Approach 1:
The patent replaces the traditional mechanical ratcheting system with a hydraulic system that uses fluid pressure to apply and control the securing force. The hydraulic cylinder with piston and fluid reservoir allows for precise pressure regulation, ensuring sufficient securing force while preventing excessive pressure that could damage the trailer walls.
Solution Approach 2:
The patent implements a pressure relief control valve that dynamically adjusts the hydraulic pressure parameters. This valve monitors and regulates the pressure levels, automatically relieving excess pressure to prevent damage to the trailer while maintaining adequate pressure for securement, thus resolving the contradiction between securing force and pressure damage.
2Reliability
If traditional mechanical load securement bars are used, then the load can be secured, but the bars move and become unstable due to trailer flexibility during transport
Solution Approach 1:
The patent employs a spring mechanism that works in conjunction with the hydraulic system to dynamically compensate for trailer flexion. The spring absorbs and accommodates the dimensional changes caused by trailer flexibility during transport, maintaining consistent contact and pressure between the securement bar and the load, thereby preventing movement and ensuring stability.
Solution Approach 2:
The pressure relief control valve functions as a feedback mechanism that continuously monitors the pressure conditions and adjusts the hydraulic fluid flow accordingly. This feedback system ensures that the securing force remains within the optimal range, maintaining both reliability and stability despite external variations during transport.
3Force
If high pressure is applied by mechanical securement bars, then the load is securely fastened, but the trailer insulation is compromised and repairs are required
Solution Approach 1:
The pressure relief control valve dynamically adjusts the hydraulic pressure parameters to maintain force within a safe range. By continuously monitoring and regulating pressure, the system ensures adequate fastening force is applied to secure the load while preventing excessive pressure that could compromise the trailer insulation, thus eliminating the need for repairs.
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 hydraulic securement device effectively secures cargo by regulating pressure and accommodating trailer flexibility, preventing damage and ensuring safe transportation of heavy-duty loads.
Implementation Method 1
A hydraulic pump assembly includes a pump body extending between a first end and a second end to define a longitudinal direction, the pump body including: a set of longitudinal walls extending in the longitudinal direction parallel to a centerline, the set of longitudinal walls including an interior wall and an exterior wall surrounding the interior wall
Implementation Method 2
a check valve located at the first end, the check valve selectively fluidly coupling the piston chamber to the fluid chamber
Data Source
AI summary
An apparatus and method for a securement device having a primary bar and at least one extension bar located within the primary bar. The securement device further including a rod coupled to the at least one extension bar. A pump body including a piston and a check valve. The pump body coupled to the extension bar and the piston moveable within the pump body.