Flexible Dust Blowing Extension Pipe With Anti-Loosening Connector
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Solution Overview
Problem
Conventional dust blowing gun pipes are non-bendable, limiting the dust blowing angle and causing assembly difficulties due to direct connector insertion, which can lead to winding and loosening issues.
Innovation Solution
A dust blowing gun extension pipe with a flexible inner pipe sleeved by a spring assembly, connected by a connector assembly with threaded and tapered features, ensuring stable attachment and preventing winding, allowing for smooth airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a non-bendable hard metal pipe is used, then the structural strength is improved, but the adaptability is worsened
Solution Approach 1:
The pipe transitions from a static rigid structure to a dynamic flexible structure that can change its configuration. The spring assembly allows the pipe to bend and adapt to different angles while maintaining structural integrity through the elastic properties of the spring and the flexibility of the inner pipe.
Solution Approach 2:
The pipe incorporates a flexible inner pipe made of soft material that can bend without breaking, combined with a spring assembly that provides structural support while allowing deformation. This flexible structure enables the pipe to achieve various bending angles while maintaining sufficient strength.
2Device complexity
If the connector is directly inserted into the flexible inner pipe, then the device complexity is reduced, but the reliability is worsened
Solution Approach 1:
The connector is divided into multiple components: a connector body, a fixing ring, and a sealing ring. This segmentation allows each component to perform its specific function - the fixing ring provides mechanical retention, the sealing ring ensures airtight connection, and the connector body provides the connection interface. This modular approach improves reliability while keeping the overall assembly relatively simple.
Solution Approach 2:
The fixing ring and sealing ring act as intermediary elements between the connector body and the flexible inner pipe. These intermediaries provide a reliable connection mechanism that prevents loosening while maintaining a simple assembly process. The fixing ring mechanically secures the connection, while the sealing ring ensures proper sealing without requiring complex assembly steps.
3Adaptability or versatility
If the flexible inner pipe is thin, then the adaptability is improved, but the ease of manufacture is worsened
Solution Approach 1:
The connector assembly is designed to be pre-assembled with the fixing ring and sealing ring in place before the flexible inner pipe is installed. This preliminary preparation of the connector components makes the subsequent installation of the thin flexible pipe easier, as the connector is already ready to receive and secure the pipe without requiring complex manipulation during assembly.
4Reliability
If the connector is tightly secured to prevent loosening, then the reliability is improved, but the ease of operation is worsened
Solution Approach 1:
The connection mechanism replaces complex mechanical fastening systems with a simpler press-fit design assisted by elastic deformation. The fixing ring and sealing ring are pressed into the connector body, utilizing elastic deformation to create a secure connection without requiring threads, screws, or other complex mechanical fastening mechanisms. This substitution maintains reliability while significantly improving assembly convenience.
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 easy assembly, prevents connector separation, and maintains a smooth air path while allowing flexible bending and twisting, enhancing user experience and product durability.
Implementation Method 1
a spring assembly (2), wherein the spring assembly (2) extends axially to two ends of the flexible inner pipe (1)
Implementation Method 2
the connector assembly (5) interacts with the flexible inner pipe (1) to form an air channel (16) for allowing a compressed air to circulate
Data Source
AI summary
A dust blowing gun extension pipe capable of being bent and shaped includes a flexible inner pipe, the flexible inner pipe is sleeved with a spring assembly; an outer portion of the spring assembly is coated with a flexible coating layer, two ends of the flexible inner pipe are respectively connected to a connector assembly, and the connector assembly interacts with the flexible inner pipe to form an air channel; the connector assembly comprises a first connector and a second connector, the first connector is provided with a first extension portion, and the first extension portion is sleeved between the flexible inner pipe and the spring assembly; an end portion of the flexible inner pipe extends into the first connector, an end portion of the flexible inner pipe is provided with a protruding ring, and the first connector is internally provided with a limiting step portion.