Ratchet Pipe Clamp with Automatic Fail-Safe Locking
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Solution Overview
Problem
There is a need for a ratchet clamp with automatic fail-safe capabilities that utilizes a locking ratchet device to effectively join two adjacent pipes, as existing solutions do not adequately address the requirement for secure and efficient pipe connection.
Innovation Solution
A ratchet clamp design featuring semi-circular clamp halves with a V-shaped cross section, a ratchet arm, and a locking ratchet device with a ratchet lever and pawl mechanism, utilizing torsion springs and angled slots to securely engage and disengage the clamp halves, ensuring automatic fail-safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a locking ratchet device is used to draw clamp halves together, then the reliability of pipe connection is improved, but the device complexity increases
Solution Approach 1:
The ratchet arm is nested within the clamp half structure, with the tooth member integrated into the clamp half and the base member positioned within the clamp assembly. The locking ratchet device components (ratchet lever, lock pawl, springs) are nested within the base bracket structure, creating a compact integrated assembly that achieves reliable locking without excessive external complexity
Solution Approach 2:
The ratchet arm is combined with the clamp half through direct attachment or integration, eliminating separate components. The locking ratchet device merges the ratchet lever, lock pawl, and spring mechanisms into a single base bracket assembly, reducing the number of discrete parts while maintaining reliable locking function
2Reliability
If a locking ratchet device with multiple components is used, then the reliability is improved, but the ease of manufacture deteriorates
Solution Approach 1:
The clamp is divided into two main clamp halves that can be manufactured separately and then assembled. The locking ratchet device is segmented into modular components (ratchet lever, lock pawl, springs, base bracket) that can be manufactured independently and assembled, facilitating standardized production processes and quality control
Solution Approach 2:
The clamp halves are designed with universal features including pivot flanges and pivot yokes that enable rotational movement and assembly. The ratchet mechanism uses standardized components (torsion springs, angled slots, pin connections) that can be manufactured using common processes, improving ease of manufacture while maintaining reliable locking function
3Reliability
If torsion springs and multiple moving parts are used, then the automatic fail-safe operation is improved, but the device complexity increases
Solution Approach 1:
The torsion springs are positioned to automatically engage with the ratchet teeth and lock pawl without external assistance. The spring-loaded lock pawl automatically latches onto the ratchet arm teeth when the ratchet lever is actuated, providing self-service locking that improves reliability while keeping the mechanism relatively simple
Solution Approach 2:
The torsion springs are pre-loaded to provide fail-safe locking capability before any failure condition occurs. The spring tension ensures that the lock pawl maintains constant contact with the ratchet teeth, providing beforehand cushioning that prevents accidental disengagement and ensures reliable operation
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 clamp securely connects and disconnects pipes by using the locking ratchet device to draw clamp halves together, providing a reliable and efficient method for attaching and removing pipes with connectors, ensuring safety and ease of use.
Implementation Method 1
A ratchet lever spring includes a first lever torsion spring, a second lever torsion spring and a lever connecting member
Implementation Method 2
A pawl lock spring includes a first lock torsion spring, a second lock torsion spring and a lock connecting member
Data Source
AI summary
A ratchet clamp with automatic fail safe preferably includes a first clamp half, a second clamp half, a ratchet arm and a locking ratchet device. The first and second clamp halves include a substantially semi-circular shape and a V-shaped cross section. One end of the first clamp half is pivotal secured to one end of the second clamp half. The ratchet arm includes a plurality of teeth. The locking ratchet device includes a ratchet lever and a lock pawl. The ratchet arm extends from an opposing end of the first clamp half. The locking ratchet device extends from an opposing end of the second clamp half. The ratchet arm is inserted into the locking ratchet device. The ratchet lever is lifted to tighten the clamp around flanges of two pipes. The lock pawl is used to lock a position of the ratchet arm relative to the locking ratchet device.