Quick-Release Clamp Assembly With Preset Gasket Compression
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Solution Overview
Problem
Conventional clamps using nuts and bolts are cumbersome to remove and reattach, and applying excessive torque can over-compress deformable gaskets, leading to unsanitary conditions by pushing the gasket into the flow path.
Innovation Solution
A releasable clamp assembly comprising an upper and lower clamp ring, a shaft component, and a latch, with a torque nut system that applies a pre-determined clamping force, preventing over-torque and allowing quick attachment and detachment, featuring a fixed torque nut configuration to maintain consistent pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If nuts and bolts are used to connect clamp halves, then clamping force can be applied, but the clamp becomes cumbersome to remove and reattach
Solution Approach 1:
The clamp is divided into two separable halves (first clamp half and second clamp half) that can be independently positioned around the pipe. Each half has its own fastening mechanism, allowing the clamp to be opened for removal and reattachment without requiring complete disassembly of a single rigid structure.
Solution Approach 2:
The clamp transitions from a static bolted connection to a dynamic system where the two halves can move relative to each other. The fastening mechanism allows the clamp to be quickly opened and closed, enabling rapid removal and reattachment while maintaining structural integrity when closed.
2Strength
If torque on nuts/bolts is increased to ensure clamping pressure, then connection strength improves, but the gasket is over-compressed and pushed into the flow path
Solution Approach 1:
The clamp is pre-configured with a determined clamping force mechanism that automatically applies the correct amount of pressure when the fastening mechanism is engaged. This eliminates the need for manual torque adjustment and prevents over-compression of the gasket, as the force is inherently limited by the design of the fastening system.
Solution Approach 2:
The clamping force parameter is controlled by changing the mechanical configuration of the fastening mechanism rather than by adjusting torque. The system uses geometric relationships and mechanical advantage to maintain a predetermined force level, ensuring the gasket is compressed sufficiently to seal but not so much that it deforms into the flow path.
3Ease of manufacture
If manual torque application is used, then installation flexibility is maintained, but over-torqueing occurs leading to unsanitary conditions
Solution Approach 1:
The fastening mechanism is designed to self-regulate the clamping force applied to the gasket. As the fastening components engage, they automatically apply the predetermined force without requiring manual torque control by the installer. This self-limiting mechanism ensures sanitary conditions are maintained while keeping the installation process simple and flexible.
Solution Approach 2:
The mechanical design incorporates inherent feedback through the interaction of the fastening components. As the clamp halves come together, the geometry of the fastening mechanism provides natural resistance that prevents excessive force application, giving the installer feedback to stop at the correct point and ensuring consistent, safe clamping pressure.
Data Source
AI summary
A releasable clamp which can be installed without using a wrench to tighten it on the fittings is disclosed. The lock nut and T bar embodiments enable the clamp to place a pre-set amount of clamping pressure on a pair of pipe fittings so as to minimize the gasket compression into the pipe's flow path.