Arc-Shaped Conduit Channel for Compact Injection Mechanism

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Solution Overview

Problem

Existing continuous tubing work equipment is too tall due to the positioning of the injector head and guiding gooseneck, making it unsuitable for environments with limited space height, such as coal mines with heights less than 3 meters.

Innovation Solution

A guiding and injecting integrated mechanism using a pair of sprocket and chain clamping assemblies with an arc-shaped conduit guiding channel, where the inlet and outlet are not in a straight line, allowing for a reduced device height by integrating guidance and injection functions, eliminating the need for a gooseneck.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the injector head and guiding gooseneck are positioned separately with the inlet directly above the outlet, then the equipment can perform guidance and injection functions, but the overall height becomes very high, making it unsuitable for limited space environments

Engineering Contradiction:
Improveadaptability to limited space heightVSAvoidoverall equipment height
Core Design Contradiction:
Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

The patent merges the guiding gooseneck and injector head into a single integrated mechanism. The guiding channel is formed between the two sprocket and chain clamping assemblies, combining the guidance function (previously provided by the gooseneck) and the injection function (provided by the injector head) into one compact structure. This eliminates the need for separate positioning of these components and reduces the overall height.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent changes the spatial arrangement from a vertical alignment (inlet directly above outlet) to a non-linear arrangement where the inlet and outlet are not in a straight line. The arc-shaped guiding channel allows the conduit to enter horizontally and exit vertically, or at any intermediate angle, enabling the equipment to adapt to limited space height while maintaining functional effectiveness.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If the inlet and outlet of the conduit guiding channel are positioned in a straight line, then the structure is simpler, but the equipment height increases, reducing adaptability to confined spaces

Engineering Contradiction:
Improveadaptability to confined spacesVSAvoidconduit guiding channel structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent employs an arc-shaped guiding channel instead of a straight-line configuration. This curved path allows the conduit to transition smoothly from horizontal entry to vertical exit (or any intermediate orientation) without requiring a tall vertical structure. The curvature enables space-efficient positioning while maintaining functional performance.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Ease of operation

If a gooseneck is used for guiding the conduit, then the conduit can be guided into the injector head, but the equipment height increases, making it unsuitable for coal mines with height less than 3 meters

Engineering Contradiction:
Improveconduit guidance capabilityVSAvoidequipment height
Core Design Contradiction:
Ease of operationVSLength of stationary object

Solution Approach 1:

The guiding function previously performed by the separate gooseneck is integrated into the conduit guiding channel formed between the two clamping assemblies. This eliminates the need for a tall gooseneck structure while maintaining the conduit guidance capability. The guiding channel provides the necessary guidance function within a compact height suitable for coal mines.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11821271B2Guiding and injecting integrated mechanism for continuous conduit
Publication Date: 2023.11.21 SHENZHEN UNIV
  • US11821271B2 patent drawing
  • US11821271B2 patent drawing
  • US11821271B2 patent drawing

AI summary

Disclosed is a guiding and injecting integrated mechanism for continuous conduit, belonging to underground exploration technical field. The mechanism comprises a pair of chain wheel and chain clamping assemblies used for clamping conduit and pulling conduit to go down or out of well. A conduit guiding channel for conduit to pass through is formed between the pair of chain wheel and chain clamping assemblies, and an inlet and an outlet of the conduit guiding channel are not situated in line. The conduit guiding channel is arc-shaped and each of the two chain wheel and chain clamping assemblies comprises a chain wheel set, chains, clamping blocks mounted on the chain, and a pushing plate for pressing the clamping blocks. Further, clamping surfaces of the clamping blocks have a certain curvature with respect to guiding direction.