Elliptical Plastic Clamp With Polygonal Screw Head
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Solution Overview
Problem
Conventional hose and pipeline clamps face challenges in absorbing high mechanical loads, ensuring operational safety, and accommodating diameter changes under pressure without causing chafing, leading to complex and costly structures.
Innovation Solution
A clamp design featuring two identical clamping bodies connected by assembly screws with an elliptical through-opening and a screw head that combines a cylinder and polygon, eliminating the need for intermediate plates and allowing for secure, gentle fastening and assembly, using elastomeric materials to absorb vibrations and protect against damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional clamps use round through-openings with edges, then assembly is simple, but the edges damage the hose and pipeline under mechanical loads
Solution Approach 1:
The through-opening is designed with an elliptical cross-section instead of a round opening with sharp edges. This curvature eliminates edge damage to the hose and pipeline while maintaining structural integrity and simplicity of manufacture.
2Reliability
If clamps use many individual parts and intermediate plates to increase stability, then operational safety improves, but production costs and device complexity increase
Solution Approach 1:
The clamp integrates the clamping body, abutment surface, and fastening elements into a unified structure. The U-shaped clamping body incorporates bearing surfaces that directly abut against each other, eliminating the need for separate intermediate plates and cover plates, thus reducing part count while maintaining stability.
Solution Approach 2:
The assembly screws serve multiple functions: they fasten the two clamping bodies together and simultaneously act as abutment screws that prevent rotation and provide structural support. This multi-functionality reduces the need for separate components like locking plates.
3Reliability
If assembly screws extend fully from the bracket surface, then secure attachment is achieved, but production costs and assembly complexity increase
Solution Approach 1:
The functional elements (clamping bodies with bearing surfaces and elliptical through-openings) are extracted and integrated directly into the U-shaped clamping body structure. This eliminates the need for separate locking plates and intermediate components, reducing production costs and assembly complexity while maintaining secure attachment.
4Strength
If clamps are made rigid to absorb high mechanical loads, then operational safety improves, but the hose cannot accommodate diameter changes under pressure, causing chafing
Solution Approach 1:
The clamp design provides rigid structural support through the U-shaped clamping bodies with bearing surfaces to handle mechanical loads, while the elliptical through-opening provides local flexibility to accommodate hose diameter changes. The grooves in the bearing surfaces provide localized grip without restricting overall hose movement.
Data Source
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AI summary
The invention relates to a clamp (10), in particular a plastic clamp, for attaching at least one hose and/or pipe (22) or the like, comprising two identical clamping bodies (12, 14) which can be connected to one another by means of abutment screws (16), wherein the clamping bodies have bearing surfaces (18) which are adjacent to one another and between which there is formed a through-opening (20) for introducing and attaching the at least one hose and/or pipe (22). According to the invention, the clamp (10) is elliptically shaped in the region of the through-opening (20), each of the abutment screws (16) having a screw head which consists of a cylinder (24) that merges into a polygon (26). In addition, the clamping bodies (12, 14) have corresponding polygonal socket openings (28).