Pipe Tapping Clamp Lever Extension for Wide Diameter Tolerance
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Solution Overview
Problem
Existing pipe clamps face difficulties in accommodating large pipe diameter tolerances due to short clamping paths, making them challenging to attach, and existing solutions that offer longer clamping paths are complex and require high forces for assembly.
Innovation Solution
A pipe clamp design featuring a plastic-made saddle piece with integrated bearing elements, a tensioning unit with a long clamping path, and an extension on the tensioning lever that reduces the required force by increasing the distance between the axis of rotation and the force application point, allowing for easy attachment and use across various pipe diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the clamping path is extended to accommodate large pipe diameter tolerances, then the adaptability to different pipe diameters is improved, but the force required to operate the tensioning lever increases significantly
Solution Approach 1:
The patent introduces an extension element that extends the tensioning lever perpendicular to the plane of the band, effectively adding a dimensional advantage. This extension increases the moment arm length, allowing the operator to apply force at a greater distance from the rotation axis, thereby reducing the required tensioning force while achieving the same clamping torque
Solution Approach 2:
The tensioning lever is designed to rotate dynamically around a rotation axis, transitioning from a non-tensioned position to a tensioned position. This dynamic movement allows the system to adapt to different pipe diameters within the tolerance range while maintaining the mechanical advantage provided by the extension element throughout the motion range
2Adaptability or versatility
If the clamping path is extended to accommodate large pipe diameter tolerances, then the adaptability to different pipe diameters is improved, but the device complexity increases due to additional components
Solution Approach 1:
The extension element serves multiple functions: it acts as both a structural component that provides the mechanical advantage and as a functional element that enables the tensioning operation. This multi-functionality reduces the need for separate force-reduction mechanisms, thereby limiting the increase in device complexity
Solution Approach 2:
The tensioning unit is segmented into distinct components: the band, the rotation axis, the tensioning lever, and the extension element. This segmentation allows each component to be optimized independently and facilitates easy assembly and disassembly, reducing the overall complexity of the device
3Manufacturing precision
If the band length is precisely determined for a specific pipe diameter, then the clamping precision is improved, but the ease of operation deteriorates due to difficulty in accommodating pipe tolerance variations
Solution Approach 1:
The system allows for adjustment of the effective clamping radius by changing the position of the rotation axis relative to the pipe surface. This parameter adjustment enables the same precisely manufactured band to accommodate different pipe diameters within the tolerance range, maintaining both precision and ease of 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 design enables easy assembly and use across a wide range of pipe diameters with reduced force requirements, maintaining high torque for secure clamping while being economical and simple to manufacture.
Implementation Method 1
an extension (8) is arranged on the clamping lever (5), which increases the distance from the rotation axis (3) and allows a reduction in force without affecting the torque
Implementation Method 2
The high torque required to tighten the clamping unit is due to the long clamping travel. This means that when released, the strap(s) are so loose that they can also be used on main pipes that are within the upper pipe tolerance without any problem
Data Source
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AI summary
Pipe clamp, in particular a pipe tapping clamp for a medium-carrying main pipe, preferably made of plastic, comprising a saddle piece, bearing elements, wherein the bearing elements are arranged on the saddle piece and are preferably formed integrally with the saddle piece, a clamping unit, wherein the clamping unit comprises at least one band for encircling the main pipe, a band connection and a clamping lever, wherein the band connection and the clamping lever are each arranged at one end of the band or bands and are opposite each other, wherein an extension is arranged on the clamping lever, wherein the extension is preferably designed as a separate part, wherein the extension can be removed from the clamping lever after the clamping unit has been tightened on the main pipe.