Plastic Press Fitting for Direct Fitting-to-Fitting Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing plastic press fittings cannot be directly connected to each other without an intervening pipe, leading to difficulties in calibration, deburring, and increased assembly time and costs, especially when attempting to create short pipe offsets.
Innovation Solution
A press fitting with a male end designed to insert into a pipe and a female end that simulates a pipe section, allowing direct connection to another press fitting without an additional pipe, using a base body made of plastic with specific deformation properties and a compression sleeve for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a piece of pipe is arranged between two press fittings to enable connection, then the press fittings can be connected, but the assembly time and assembly costs increase due to additional calibration and deburring operations
Solution Approach 1:
The patent combines two separate components (press fitting and pipe) into a single integrated component. The press fitting base body directly includes a connection interface that accepts another press fitting, eliminating the need for an intermediate pipe section and reducing assembly steps.
Solution Approach 2:
The press fitting base body is designed with dual functionality: it serves as both the fitting body and a simulated pipe section. The female press connection piece at the second end allows it to function as both a terminal fitting and an intermediate connection element.
2Length of stationary object
If a very short piece of pipe is used between two press fittings to minimize space, then the offset height is reduced, but the piece of pipe becomes difficult if not impossible to calibrate and deburr
Solution Approach 1:
The press fitting base body integrates the functions of both the fitting and the intermediate pipe section. By forming the connection interface directly on the base body, the patent eliminates the need for separate calibration and deburring operations on a short pipe piece.
Solution Approach 2:
The patent changes the geometric parameters of the base body to directly provide the necessary connection interface. The female press connection piece is formed with appropriate dimensions and tolerances directly during manufacturing, avoiding post-processing challenges associated with very short pipe pieces.
3Ease of operation
If a piece of pipe is arranged between two press fittings, then the press fittings can be connected, but the space requirements increase due to the additional component
Solution Approach 1:
The patent merges the press fitting and the intermediate pipe section into a single integrated base body. This eliminates the additional volume occupied by a separate pipe piece while maintaining the connectability function.
Solution Approach 2:
The base body serves multiple functions simultaneously: it provides the fitting body structure, defines the fluid flow channel, and creates the female press connection interface. This multi-functionality reduces the overall space requirements compared to using separate components.
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
Enables direct connection of press fittings, reduces space requirements, and simplifies assembly by eliminating the need for an additional pipe, while ensuring a secure and leak-proof press connection.
Implementation Method 1
The plastic must be sufficiently plastically deformable, with the deformation should be between 7.5% and 13%, so that a secure press connection can be produced.
Data Source
Figure 1
Figure 2
Figure 3a
AI summary
The invention relates to a press fitting (10) comprising a base body (12), wherein the base body (12) has a first end (16) and a second end (18), the first end (16) of the press fitting (10) being configured as a male press connection, which is designed to be at least partially inserted into a superior pipe section in order to serve as a support body (16) arranged therein for pressing the pipe section with the press fitting (10), the second end (18) of the press fitting (10) being configured as a female press connection, which is designed to provide a pipe section for pressing with another press fitting, and wherein the base body (12) is made of plastic. The invention further relates to a corresponding press connection.