Modular Press Jaw Inserts for One-Hand Pipe Fitting Pressing
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Solution Overview
Problem
Existing systems for pressing fittings with pipes are cumbersome, requiring multiple types of press jaws and inserts, which increases weight, complexity, and logistical challenges on construction sites.
Innovation Solution
A press jaw system with a press insert and a drive press jaw, where the press insert has multiple press segments, joint means for connection, coupling means for releasable connection with the drive press jaw, and force transmission means arranged between the center of the press contour and the joint means, allowing for one-hand operation and reduced weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple types of press jaws and inserts are used to press different fittings, then the system can handle various pipe fittings (adaptability), but the weight and complexity of the system increases
Solution Approach 1:
The press jaw is designed with a modular press insert that can be exchanged to accommodate different fitting types and sizes. The universal drive press jaw body combined with interchangeable press inserts allows a single base unit to perform multiple pressing functions, reducing the need for multiple complete press jaw sets and thereby reducing overall system weight while maintaining adaptability.
Solution Approach 2:
The press jaw system is divided into separate modular components: a reusable drive press jaw body and replaceable press inserts. This segmentation allows the heavy structural components to be used repeatedly while only the lighter, task-specific press inserts are exchanged, reducing the total weight of equipment that needs to be transported and handled.
2Adaptability or versatility
If multiple types of press jaws and inserts are used to press different fittings, then the system can handle various pipe fittings (adaptability), but the device complexity increases
Solution Approach 1:
The drive press jaw is designed as a universal base unit with standardized coupling mechanisms that can accommodate multiple press inserts for different fitting types. This universality reduces device complexity by eliminating the need for multiple complete press jaw assemblies, as one standardized drive mechanism can perform all pressing operations through insert exchange.
Solution Approach 2:
By separating the press jaw into a reusable drive mechanism and replaceable press inserts, the system simplifies complexity management. The complex drive mechanism is designed once and reused, while the simpler press inserts are exchanged based on the specific fitting type required, reducing the overall complexity of the complete system.
3Force
If traditional press jaws are designed, then sufficient pressing force can be applied, but one-hand operation becomes difficult
Solution Approach 1:
The press insert incorporates a resilient element that provides dynamic force multiplication during the pressing operation. This allows the operator to apply relatively small manual force that is then amplified by the spring mechanism to generate sufficient pressing force on the fitting, making one-hand operation feasible while maintaining adequate pressing capability.
Solution Approach 2:
The resilient element acts as an intermediary between the operator's manual input force and the pressing force applied to the fitting. It stores and releases energy to amplify the operator's effort, enabling one-hand operation while still achieving the necessary pressing force that would otherwise require two hands or mechanical assistance.
Data Source
AI summary
A press jaw has a drive press jaw and a replaceable press insert which can be coupled thereto, to a drive press jaw having coupling elements, to a press insert having a coupler which can be used as a press jaw insert or as a press loop, and to a system for pressing fittings with tubes, having a modular design with a press jaw, at least two press inserts with different diameters, and a tension insert, wherein the tension insert and the drive press jaw form a tension jaw.