Pull Handle Structure With Locking Lever Mechanism
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Solution Overview
Problem
Existing handle structures lack secure locking mechanisms and labor-saving features, leading to accidental operation and requiring significant force for engagement and separation of objects.
Innovation Solution
A pull handle structure incorporating a lever mechanism with a limiting section that can be securely locked and easily extended for use, featuring a carrier with a hole portion and a corresponding limiting section on the second object for effortless operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a handle is provided on an object without a secure locking mechanism, then the handle is easily accessible and simple in structure, but the handle is susceptible to wrong operation and accidental movement
Solution Approach 1:
The handle is pre-configured in a locked position where the limiting section engages with the limiting groove. Before the handle can be operated, the user must first unlock it by moving the handle body relative to the carrier, which retracts the limiting section from the limiting groove. This preliminary locking action prevents accidental operation while maintaining simple accessibility.
2Shape
If a flush swing handle is used that can be pushed flat to the object when not in use, then the handle has a compact appearance, but the handle still lacks secure locking function and can be arbitrarily pulled for use
Solution Approach 1:
The handle is designed to automatically engage the limiting section with the limiting groove when pushed flat against the object body. This preliminary engagement creates a secure locked position that prevents arbitrary pulling. When the user pulls the handle for use, the limiting section disengages from the limiting groove, providing controlled operation rather than arbitrary movement.
Solution Approach 2:
The limiting section and limiting groove act as intermediary elements between the handle body and the object body. These intermediaries provide the secure locking function by mechanically engaging with each other, preventing the handle from being arbitrarily moved while maintaining the compact flush appearance when not in use.
3Device complexity
If conventional handle designs are used without labor-saving mechanisms, then the handle structure is simple, but a user has to apply considerable force to connect or separate the object with or from another object
Solution Approach 1:
The handle is designed as a movable component that can shift position relative to the carrier. When the user pulls the handle, the handle body moves, which dynamically changes the position of the limiting section. This dynamic movement allows the limiting section to disengage from the limiting groove and engage with the limiting protrusion, providing a mechanical advantage that reduces the force required to separate connected objects.
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 pull handle structure allows for secure locking and easy, quick operation, reducing the risk of accidental use and minimizing the force required for object engagement and separation.
Implementation Method 1
the pull handle structure employs the lever principle, so that the handle being pivotally turned enables effortless connection and separation of the object with the handle to and from another object
Data Source
AI summary
A pull handle structure includes a carrier mounted on a first object, a pull handle movably assembled to the carrier, and a limiting section located on the pull handle for connecting to, interfering with or engaging with a second object. By operating the pull handle to move the carrier, the first object can be engaged with or separated from the second object. Therefore, the pull handle structure has the advantages of being securely lockable in place and operable in an easy, convenient, effortless and quick manner.