Pipe Fitting Sleeve Structure for Variable Caliper Crimp Sealing

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Solution Overview

Problem

Traditional pipe fitting connection devices cannot universally match all types of calipers due to varying caliper tooth heights, leading to inconsistent indentation and compression, which compromises the sealing performance between the pipe fitting connection device and the pipe.

Innovation Solution

A pipe fitting connection device with a core body and connecting body, featuring a positioning sleeve with matching portions and positioning ribs forming a clamping groove, along with a mounting groove for a sealing ring and anti-slip wall, allowing for adaptable compression and sealing regardless of caliper tooth height, using a caliper to compress and deform the pipe for reliable sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional pipe fitting connection devices are used with various types of calipers, then the device can be mounted on different caliper types, but the sealing performance is compromised due to inconsistent caliper tooth heights causing varying indentation and compression

Engineering Contradiction:
Improvecompatibility with various caliper typesVSAvoidsealing performance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The clamping groove is designed with a bottom wall that can be compressed, and positioning ribs that can be deformed. When calipers with different tooth heights are applied, the bottom wall and positioning ribs adjust their compression degree accordingly, ensuring consistent sealing performance across various caliper types while maintaining adaptability to different tooth heights

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The positioning ribs are designed as movable elements that can be compressed between the caliper tooth and the bottom wall of the clamping groove. This dynamic structure allows the system to adapt to different caliper tooth heights while maintaining reliable sealing through controlled deformation of the positioning ribs and bottom wall

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If calipers with different tooth heights are used to crimp the pipe, then various caliper types can be utilized, but the number and amount of indentations become inconsistent, compromising sealing reliability

Engineering Contradiction:
Improvecompatibility with different caliper tooth heightsVSAvoidconsistency of indentation and compression
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The bottom wall of the clamping groove and the positioning ribs are designed to undergo controlled deformation based on the applied compression force. This allows the system to accommodate different caliper tooth heights while maintaining consistent indentation quality and compression amount, ensuring uniform sealing performance regardless of the specific caliper type used

Inventive Principle:
Principle #35Parameter changes

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

Ensures reliable sealing performance across various caliper types by adjusting compression based on caliper tooth height, enhancing sealing effectiveness through multiple indentations and compression points.

Implementation Method 1

a caliper is utilized to clamp the positioning sleeve to make the positioning sleeve and the pipe compressed and deformed to implement the sealing

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 2

the positioning sleeve and the pipe compressed and deformed to implement the sealing

Methodology Applied
Scientific EffectDeformation: Deformation

Implementation Method 3

the second side wall is provided with an anti-slip wall

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP3677823B1Tube connection device
Publication Date: 2023.01.11 RIFENG ENTERPRISE FOSHAN CO LTD
  • EP3677823B1 patent drawingFigure 1
  • EP3677823B1 patent drawingFigure 2
  • EP3677823B1 patent drawingFigure 3

AI summary

A pipe fitting connection device includes: a pipe fitting body (100) including a core body (110) and a connecting body (120) connected to each other, the connecting body (120) is provided with a first matching portion (121); a positioning sleeve (300) sleeving the core body (110), one end of the positioning sleeve provided with a second matching portion matching the first matching portion, the positioning sleeve (300) spaced from the core body (110) to form a mounting cavity for mounting a pipe, an outer wall of the positioning sleeve (300) provided with at least two spaced positioning ribs (310), and two adjacent positioning ribs (310) matching the positioning sleeve (300) to form a clamping groove (320) that matches a caliper tooth (710).