Clamping Hook Fastening with Pressure Sleeve Against Twist-Out
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Solution Overview
Problem
Existing clamping attachments for T-beams experience a reduction in force absorption due to twisting of clamping hooks after tightening, limiting their ability to securely hold the pipe holder.
Innovation Solution
Incorporating a pressure sleeve on the threaded rod between the clamping nut and the clamping hook, which applies force to the inclined surface of the hook arm below the fastening opening, preventing undesired tilting and enhancing force absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the clamping nut is tightened to apply pressure to the clamping hook, then the clamping force increases, but the clamping hook twists and pulls out from under the support flange, reducing force absorption capacity
Solution Approach 1:
A pressure sleeve is introduced as an intermediary component between the clamping nut and the clamping hook. The pressure sleeve receives the clamping force from the nut and redistributes it to act directly on the inclined surface of the hook arm below the fastening opening, preventing the hook from twisting and pulling out while maintaining effective clamping force
Solution Approach 2:
The pressure sleeve extends radially beyond the threaded rod, changing the dimensional distribution of the clamping force. By projecting outward, it creates a new lever arm that allows the force to be applied at the optimal location on the hook arm's inclined surface, preventing rotational movement of the hook
2Device complexity
If the clamping force is applied above the bearing surface plane, then the fastening is simplified, but torque pulls the clamping surface out from under the support flange, reducing stability
Solution Approach 1:
The pressure sleeve serves as a mediator that decouples the fastening location (above the bearing surface) from the force application location (below the bearing surface on the inclined surface). This allows the threaded rod to pass through the fastening opening for simple assembly while the pressure sleeve transfers the force to the correct location for stability
Solution Approach 2:
The clamping system is segmented into distinct functional components: the threaded rod for positioning and fastening, the pressure sleeve for force application, and the clamping hook for engagement. This segmentation allows each component to perform its specific function optimally without compromising the others
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 pressure sleeve ensures that the clamping force is applied directly to the hook arm below the fastening opening, preventing twisting and maximizing the force absorption capacity of the clamping hooks after tightening.
Implementation Method 1
a pressure sleeve is provided on the threaded rod between the clamping nut and the clamping hook, that the clamping hook can be pressurized by means of the clamping nut via the pressure sleeve
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The invention relates to a clamping fastening (15) with at least one clamping hook (3) which (3) has two hook arms (18, 19), of which a first hook arm (18) has a bearing surface (10) for bearing on a support element and of which a second hook arm (19) has a clamping surface (11) which, together with the bearing surface (10), defines a hook opening (12), and which (11) is arranged at an angle relative to the bearing surface (10) such that the clamping surface (11) engages the edge (13) of the support element facing away from the bearing surface (10), wherein the first hook arm (18) has at least one fastening opening (14) which passes through a threaded rod (2) and wherein a clamping nut (1) is screwed onto the threaded rod (2), which applies pressure to the clamping hook (3) in a holding position on the support element.The clamping fastening (15) according to the invention is characterized in that the clamping hook (3) can be subjected to pressure by means of the clamping nut (1) in a partial area of the clamping hook (3) arranged below the at least one fastening opening (14) and in particular below the plane (E) formed by the support surface (10) (see Fig. 1).