Suction nozzle for a handheld milling machine
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Solution Overview
Problem
Existing suction nozzles for hand-held milling machines are difficult to mount and detach, often requiring tools, leading to incomplete dust extraction and increased risk of damage when the machine falls.
Innovation Solution
A suction nozzle with a detachable connection to the depth stop, featuring a snap-lock mechanism with latching elements and a spring-loaded design for easy attachment and release, made from transparent plastic for visibility and blockage detection, allowing for secure fastening and easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the suction nozzle is fixedly mounted on the hand-held milling machine, then the dust extraction is secure, but the mounting and detachment become awkward and may require special tools
Solution Approach 1:
The suction nozzle is divided into separate components: a connection area with latching elements that can detachably engage with the depth stop. This segmentation allows the nozzle to be easily attached and detached without tools while maintaining secure connection during operation.
Solution Approach 2:
The connection system transitions from a fixed rigid mounting to a dynamic detachable connection using spring-loaded latching elements. The latching elements can automatically engage and disengage based on applied force, providing both secure mounting during use and easy detachment when needed.
2Stability of the object's composition
If the suction nozzle is fixedly mounted on the hand-held milling machine, then the connection is stable, but the nozzle may break off more easily when the machine falls
Solution Approach 1:
The spring-loaded latching elements are designed to absorb impact forces before they can damage the nozzle. When the machine falls, the spring elements deform to cushion the shock, preventing the rigid connection from breaking and protecting the nozzle from damage.
Solution Approach 2:
The connection system uses elastic spring elements that can dynamically respond to impact forces. The springs deform under impact loading, converting kinetic energy from a fall into elastic potential energy, thereby protecting the nozzle from breaking while maintaining stable connection during normal operation.
3Reliability
If a special tool is required for mounting the suction nozzle, then the connection can be secure, but the mounting process becomes time-consuming and complex
Solution Approach 1:
The latching elements are designed to self-engage with the depth stop without requiring external tools. The spring-loaded mechanism automatically secures the connection when the nozzle is attached, eliminating the need for special mounting tools and reducing mounting time while maintaining secure connection.
4Ease of manufacture
If the suction nozzle is made opaque, then the manufacturing is simpler, but blockages cannot be detected easily
Solution Approach 1:
The suction nozzle is made transparent instead of opaque, allowing visual detection of blockages and dust accumulation. This transparency enables users to monitor the nozzle condition without disassembly, facilitating early detection and maintenance while remaining manufacturable.
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
Facilitates safe and efficient dust extraction by simplifying the mounting process, reducing the risk of damage from falls, and enabling easy tool changes during operation.
Implementation Method 1
a second of the latching elements (11') is formed in the connection area (10) in an elastic manner with the aid of a spring element (15)
Implementation Method 2
at least one latching element (11, 11') is formed on the connection area (10), which is in engagement with a corresponding latching element when the connection area is fastened to the depth stop (210)
Implementation Method 3
a suction connection (30) designed for connection to a dust extraction system (300)
Data Source
AI summary
A suction nozzle (100) for a hand-held milling machine (200), the suction nozzle (100) including a suction connection (30) designed for connection to a dust extraction system (300), and the hand-held milling machine (200) being equipped with a depth stop (210), with the aid of which a penetration depth (ET) of a milling tool (220) of the hand-held milling machine (200) may be limited, the suction nozzle (100) having a connection area (10), via which the suction nozzle (100) is detachably fastenable, in particular detachably fastenable without tools, to the depth stop (210).