Connection device, method for manufacturing a connection device, screw sleeve
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Solution Overview
Problem
Existing connection devices for suction tubes to function units, such as suction apparatuses and tools, face challenges in providing reliable rotation compensation and antistatic functions simultaneously, as increased outer diameter for easier rotation can compromise electrical contact and antistatic functionality.
Innovation Solution
Incorporating a deformable spring section in the connection device, which is elastically deformable in the radial direction, allows for larger outer diameters while maintaining contact and ensuring antistatic functionality by forming the outer periphery that bears on the inner periphery of the second connection section, enabling smooth rotation without excessive force and maintaining electrical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the outer diameter of the first connection section is increased to reduce friction and enable easier rotation, then the rotation compensation function is improved, but the electrical contact between the connection sections is compromised and the antistatic function is lost
Solution Approach 1:
The first connection section is designed with a spring section that is elastically deformable in the radial direction, making the structure dynamic rather than rigid. This allows the outer diameter to effectively vary during rotation - being larger when needed for reduced friction and rotation ease, and maintaining contact pressure for reliable electrical connection through elastic deformation
Solution Approach 2:
The spring section enables change in the physical state and dimensions of the first connection section. By being elastically deformable, the outer diameter and contact pressure can dynamically adjust based on operational conditions, simultaneously achieving easy rotation and reliable electrical contact
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
The solution ensures reliable rotation compensation and antistatic functions by allowing the first connection section to rotate easily while maintaining constant contact between the connection sections, thus preventing static charging and twisting of the suction tube.
Implementation Method 1
The spring section is deformable, in particular elastically deformable, in the radial direction
Implementation Method 2
By way of this, in particular an electrical contact is created between the first connection section and the second connection section, said electrical contact serving for providing the antistatic function
Data Source
AI summary
A connection device for the fluidic connection of a suction tube to a function unit. The connection device includes a first hollow-cylindrical connection section and a second hollow-cylindrical connection section. One of the connection sections is connectable or connected to the suction tube and the other connection section is connectable or connected to the function unit. One of the connection sections is located at least partly within the other connection section and with its outer periphery bears on the inner periphery of the other connection section, where the two connection sections are rotatably mounted, in order to provide a rotation compensation for the suction tube, and where an electrical connection for providing an antistatic function exists between the two connection sections. The first connection section includes a spring section which is deformable in the radial direction and with which the bearing contact on the second connection element takes place.