Connecting device for fixing to a hollow profile and stabilising set and stabilising arrangement
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Solution Overview
Problem
Existing connection devices for hollow profiles, such as those used in shower partitions, face limitations in applying sufficient clamping forces due to the risk of damaging thin-walled sleeve threads when grub screws are tightened, leading to unstable attachments.
Innovation Solution
A connection device with a clamping unit featuring a clamping element and an adjusting screw, where the clamping element is supported on the base body and can be relocated by the adjusting screw, allowing for increased clamping forces and a stable attachment by pressing against the hollow profile's inner wall, and optionally incorporating a tiltable clamping element and cutting edges for enhanced clamping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If grub screws are tightened to apply clamping forces to the hollow profile, then the attachment stability is improved, but the threads in the thin-walled sleeves are destroyed
Solution Approach 1:
A clamping element is introduced as an intermediary component between the adjusting screw and the hollow profile. This clamping element transfers the clamping force from the adjusting screw to the hollow profile without directly engaging the thin-walled sleeve threads, thereby preventing thread damage while maintaining attachment stability.
Solution Approach 2:
The connection device is segmented into distinct functional components: a base body with sleeve section, a separate clamping element with clamping section, and an adjusting screw. This segmentation allows the clamping force application to be separated from the thread engagement, enabling high clamping forces to be applied to the hollow profile without compromising the thin-walled sleeve structure.
2Shape
If thin-walled sleeves are used for optical reasons, then the aesthetic appearance is improved, but the clamping forces that can be applied are limited
Solution Approach 1:
The clamping element acts as a mediator that enables high clamping force application without directly contacting the thin-walled sleeve. This allows the sleeve to maintain its thin-walled design for aesthetic purposes while the clamping element provides the necessary mechanical strength for high clamping forces.
Solution Approach 2:
The clamping force is applied from the inside of the hollow profile by the clamping section, utilizing the internal space rather than requiring external thickening of the sleeve. This dimensional approach allows high clamping forces to be achieved without compromising the external aesthetic appearance of the thin-walled sleeve.
3Reliability
If the clamping element is made tiltable with cutting edges, then the clamping effectiveness is improved, but the device complexity increases
Solution Approach 1:
The clamping element is designed with tilting capability, allowing it to dynamically adjust its orientation relative to the hollow profile. This dynamic feature enables the cutting edges to optimally engage with the profile surface for enhanced clamping effectiveness, while the tilting mechanism remains relatively simple through the use of a pivot point or hinge connection.
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 provides a stable and resilient attachment of the connection device to the hollow profile, enabling secure and durable support of surface elements like glass walls relative to stationary components without requiring additional reset mechanisms or tools.
Implementation Method 1
the adjusting screw has a screw head and a screw shank extending along a screw axis, wherein the screw shank is screw-connected to the base section of the base body
Implementation Method 2
the clamping section can press against a profile wall area of the hollow profile from the inside in the plugged-in position, so that it can be clamped between the clamping section and the clamping surface
Implementation Method 3
The clamping element can have end faces forming an insertion bevel and/or at least one cutting edge
Data Source
Figure 1~4
Figure 5~9
Figure 10~12
AI summary
The invention relates to a connection device for fastening to a hollow profile (2; 72), wherein the connection device (1; 50; 70; 80) comprises: a base body (3) with a bottom section (10) and a sleeve section (11) extending along a longitudinal axis (X) and having an insertion opening (16) for the hollow profile at an axial end far from the bottom, a clamping unit (4) with a clamping element (7) and an adjusting screw (8), wherein a support section (24) of the clamping element is supported on the bottom section (10) of the base body and a clamping section (25) of the clamping element is arranged in the sleeve section (11) of the base body, and wherein the adjusting screw (8) has a screw head (29) and a screw shaft (27) extending along a screw axis (A),wherein the screw shaft (27) is screwed to the base section (10) of the base body and the screw head (29) can be supported on a support surface (30) formed on the support section (24) of the clamping element, so that by screwing the adjusting screw (8) into the base section (10) the clamping section (25) can be moved to a clamping surface (31). The invention further relates to a stabilization set and a stabilization arrangement.