Blanket Clamp Ratchet Locking for Wind-Resistant Securement
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Solution Overview
Problem
Existing blanket clamps for securing insulating blankets to electrical distribution lines rely solely on torsion springs for securement, which compromises between ease of operation and securement strength, and are prone to movement or dislodgement due to external forces like wind.
Innovation Solution
A blanket clamp with a ratchet mechanism that includes first and second lever arms with a torsion spring at a pivot point, allowing for secure locking of the clamp in various positions using a fixed toothed section and a rotating actuated engagement lever.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a torsion spring of low bias is used in the blanket clamp, then the ease of operation is improved, but the securement strength deteriorates
Solution Approach 1:
The clamp transitions from a static spring-bias system to a dynamic ratchet mechanism that allows the jaws to be easily opened and closed while maintaining secure closure through the ratchet teeth engagement. The ratchet mechanism enables the clamp to adapt its state between open and locked positions dynamically.
Solution Approach 2:
The clamp is divided into functional segments: the torsion spring provides opening force, the ratchet mechanism provides locking function, and the jaws provide gripping function. This segmentation allows each component to be optimized independently - the spring can be weak for ease of operation while the ratchet provides strong securement.
2Strength
If a torsion spring of high bias is used in the blanket clamp, then the securement strength is improved, but the ease of operation deteriorates
Solution Approach 1:
The ratchet mechanism introduces dynamic control over the clamp's closure state. The cam portion and toothed section work together to allow easy opening (by overcoming the ratchet lock) while maintaining strong securement when closed (through positive mechanical engagement of ratchet teeth).
Solution Approach 2:
The ratchet mechanism acts as an intermediary between the user's opening force and the spring's closing force. It allows the weak spring to maintain securement while the user can easily open the clamp by temporarily overcoming the ratchet engagement.
3Reliability
If a ratchet mechanism is added to the blanket clamp, then the securement reliability is improved, but the device complexity increases
Solution Approach 1:
The ratchet mechanism is merged with the existing lever arm structure. The cam portion is integrated into the movement path of the lever arms, and the toothed section is formed on one of the lever arms themselves. This merging adds the locking function without requiring completely separate components.
Solution Approach 2:
The ratchet mechanism serves multiple functions: it provides securement reliability through positive locking, maintains ease of operation through simple cam-actuated engagement, and adapts to various blanket and line configurations. The same mechanism handles both the locking and release functions.
4Object-affected harmful factors
If a ratchet mechanism is added to the blanket clamp, then the resistance to external forces is improved, but the device complexity increases
Solution Approach 1:
The ratchet mechanism provides preliminary anti-action against external forces like wind. The interlocking teeth are engaged before wind forces act on the blanket, creating a mechanical barrier that prevents the blanket from moving or dislodging the clamp. The ratchet teeth resist the directional forces that wind would apply.
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 ratchet mechanism provides a secure lock that prevents the blanket from moving or dislodging, even under external forces like wind, while allowing for easy operation and adjustment by the user.
Implementation Method 1
a torsion spring positioned at the pivot point and configured to bias the upper jaws of the clamp in an open position
Data Source
AI summary
A blanket clamp which includes first and second lever arm each with a handle and an upper curved jaw. The first and second lever arms cross over each other and are secured together at a center pivot point, with a torsion spring positioned at the pivot point and configured to bias the upper jaws of the clamp in a closed position. A trigger element connected to the first lever arm is configured to lock the clamp in a desired closed, open, or partially closed position includes a toothed end which engages ratchet teeth located on the second lever arm.